Loading...
HomeMy WebLinkAboutDRC-2011-007633 - 0901a0688029173dSent VIA Federal Express November 30,2011 Mr. Rusty Lundberg Co-Executive Secretary Utah Water Quality Board Utah Department of Environmental Quality 195 North 1950 West P.O. Box 144820 Salt Lake City, UT 84114-4820 Denison Mines (USA) Corp. 1050 17th Street, Suite 950 Denver, CO 80265 USA Tel: 303628-7798 Fax: 303389-4125 www.denisonmines.com Re: Transmittal of 3rd Quarter 2011 Groundwater Monitoring Report Groundwater Quality Discharge Permit UGW370004 White Mesa Uranium Mill Dear Mr. Lundberg: Enclosed are two copies of the White Mesa Uranium Mill Groundwater Monitoring Report for the 3rd Quarter of 2011 as required by the Groundwater Quality Discharge Permit UGW370004, as well as two CDs each containing a word searchable electronic copy of the report. If you should have any questions regarding this report please contact me. p,U~IY'~ DENISON MINES (USA) CORP. Jo Ann Tischler Director, Compliance and Permitting cc: Ron F. Hochstein David C. Frydenlund Harold R. Roberts David E. Turk Katherine A. Weinel Central Files White Mesa Uranium Mill Groundwater Monitoring Report State of Utah Gtoundwa:ter Discharge Permit No. UGW370004 3rd Quarter (July through September) 2011 Prepared by: Denison Mine (USA) Corp. Suite 950, 1050 171h Street Denver CO 80265 November 30, 2011 TABLE OF CONTENTS 1.0 IN"TRODUCTION ................................................................................................... 1 1.1 GWDP Modifications During the Third Quarter ................................................. 1 2.0 GROUNDWATER MONITORIN"G ....................................................................... 1 2.1 Samples and Measurements Taken During the Quarter ....................................... 1 2.1.1 Groundwater Compliance Monitoring .......................................................... 1 2.1.2 Accelerated Groundwater Monitoring .......................................................... 2 2.1.3 Background Well Monitoring ....................................................................... 2 2.1.4 Parameters Analyzed .................................................................................... 2 2.1.5 Groundwater Head Monitoring ..................................................................... 3 2.2 Field Data ............................................................................................................. 3 2.3 Laboratory Results -Quarterly Sampling ............................................................ 3 2.3.1 Copy of Laboratory Results .......................................................................... 3 2.3.2 Regulatory Framework and Groundwater Background ................................ 4 2.4 Laboratory Results -Accelerated Monitoring ..................................................... 4 2.4.1 Copy of Laboratory Results .......................................................................... 4 2.4.2 Regulatory Framework and Groundwater Background ................................ 5 2.4.3 Compliance Status ........................................................................................ 5 2.5 Depth to Groundwater and Water Table Contour Map ........................................ 5 3.0 QUALITY ASSURANCE AND DATA VALIDATION ....................................... 6 3.1 Field QC Samples ................................................................................................. 6 3.2 Adherence to Mill Sampling SOPs ...................................................................... 7 3.3 Analyte Completeness Review ............................................................................. 7 3.4 Data Validation .................................................................................................... 7 3.4.1 Field Data QNQC Evaluation ...................................................................... 7 3.4.2 Holding Time Evaluation .............................................................................. 8 3.4.3 Receipt Temperature Evaluation ................................................................... 9 3.4.4 Analytical Method Checklist ........................................................................ 9 3.4.5 Reporting Limit Evaluation .......................................................................... 9 3.4.6 Trip Blank Evaluation ................................................................................... 9 3.4.7 QNQC Evaluation for Routine Sample Duplicates ..................................... 9 3.4.8 Radiologics Counting Error and Duplicate Evaluation .............................. 10 3.4.9 Other Laboratory QNQC ........................................................................... 10 4.0 CORRECTIVE ACTION REPORT ...................................................................... 13 4.1 5.0 6.0 7.0 Assessment of Previous Quarter's Corrective Actions ...................................... 13 TIME CONCENTRATION PLOTS ...................................................................... 13 ELECTRONIC DATA FILES AND FORMAT ................................................... 14 SIGNATURE AND CERTIFICATION ................................................................ 15 i LIST OF TABLES Table 1 Summary of Well Sampling for the Period Table 2 Exceedances and Acceleration Requirements Table 3 GWCL Exceedances Through Third Quarter 2011 Under the February IS, 2011 and July 14, 2011 GWDP INDEX OF TABS Tab A Site Plan and Perched Well Locations White Mesa Site Tab B Field Data Worksheets Quarterly Sampling Tab C Field Data Worksheets Accelerated Monitoring Tab D Quarterly Depth to Water Tab E Laboratory Analytical Reports -Quarterly Sampling Tab F Laboratory Analytical Reports -Accelerated Monitoring Tab G Quality Assurance and Data Validation Tables G-1AfB G-2AfB G-3AfB G-4AfB G-SAfB G-6AfB G-7AfB G-8AfB G-9AfB Field Data QNQC Evaluation Holding Time Evaluation Laboratory Receipt Temperature Check Analytical Method Check Reporting Limit Check Trip Blank Evaluation QNQC Evaluation for Sample Duplicates Radiologics Counting Error Laboratory Matrix QC Tab H Kriged Current Quarterly Groundwater Contour Map and Depth Data Tab I Groundwater Time Concentration Plots Tab J CSV Transmittal Letter ii 1.0 INTRODUCTION This is the Routine Groundwater Monitoring Report, as required under Part 1.F.1 of State of Utah Groundwater Discharge Permit No. UGW370004 (the "GWDP") for the third quarter of 2011 (the "quarter") for Denison Mines (USA) Corp's. ("DUSA's") White Mesa Uranium Mill (the "Mill"). As required under Parts 1.E.1, 1.E.2 and I.E.5 of the GWDP this Report includes all recorded field measurements and laboratory analyses for well monitoring conducted during the quarter. 1.1 GWDP Modifications During the Third Quarter During the third quarter of 2011, the approved February 15, 2011 GWDP was revised on July 14, 2011. The revision incorporated changes necessary to address various activities at the Mill. No changes were issued to the Groundwater Compliance Limits ("GWCLs") specified in Table 2 or to the groundwater monitoring program described herein. 2.0 GROUNDWATER MONITORING 2.1 Samples and Measurements Taken During the Quarter A map showing the location of all groundwater monitoring wells, piezometers, existing wells, chloroform contaminant investigation wells and nitrate contaminant investigation wells is attached under Tab A. Groundwater samples and measurements were taken during this reporting period (January through March), as discussed in the remainder of this section. 2.1.1 Groundwater Compliance Monitoring Groundwater samples and field measurements collected during the third quarter included both quarterly and accelerated monitoring. Accelerated monitoring is discussed below in Section 2.1.2. In this third quarter report, samples classified as being collected quarterly include those wells which are routinely sampled every quarter as well as semi-annual wells which are sampled on an accelerated quarterly schedule due to exceedances reported in previous quarterly reports. Wells which are sampled routinely every quarter were analyzed for the parameters listed in Table 2 and Part 1.E.1.c) 2)ii of the GWDP dated February 15, 2011 and July 14, 2011. The semi-annual wells which have been accelerated to quarterly are analyzed only for those parameters which exceeded the GWCLs in Table 2 and Part I.E.1.c) 2)ii of the GWDP as described in the 2nd Quarter Groundwater Monitoring Report (DUSA August 31, 2011). Table 1 of this report provides an overview of all wells sampled during the current period, along with the required sampling frequency applicable to each well during the current monitoring period, the date samples were collected from each well, and the date(s) analytical data were received from the contract laboratory(ies). Table 1 also indicates which sample numbers are associated with the required duplicates. During this 1 N:lRequired Report.\Groundwater Quarterly Monitoring Report\2011 Q3\3,d Qtr 20 11 GW.doc quarter, five wells and one duplicate were resampled due to preservation (pH) outside of acceptance limits when the samples were received at the laboratory. In addition one well and the duplicate were resampled because the laboratory inadvertently lost the thallium sample aliquot for the duplicate sample (MW -70). The sample and its duplicate were resampled for thallium. The following is a list of wells which were resampled: • MW -14 was resampled for metals, nitrate, ammonia, and Gross Alpha minus Rn222 and Uranium ("gross alpha") due to preservation issues. • MW-18/MW-70 were resampled for thallium because the laboratory lost the thallium aliquot for MW -70. • MW-25, MW-26, MW-32, MW-35, and MW-65 (duplicate of MW-26) were resampled for metals and gross alpha due to preservation issues. 2.1.2 Accelerated Groundwater Monitoring. In addition to the quarterly monitoring referenced above, accelerated monthly sampling was performed, and results reported, for the wells indicated in Table 1. The accelerated sampling frequency, analyte list and well list were determined based on the previously reported analytical results and are included in Table 2 of this report. Table 1 provides an overview of the wells sampled for the accelerated monthly program along with the routine sampling frequency as well as the accelerated sampling frequency, the date samples were collected from each well, the associated duplicates and the date(s) which analytical data were received from the contract laboratory(ies). 2.1.3 Background Well Monitoring A requirement was added to the GWDP on February 15, 2011, which required the Mill to begin quarterly sampling of wells MW-35, MW-36 and MW-37 to develop eight quarters of background data. MW-35, which was installed in the third quarter 2010, has been sampled quarterly since fourth quarter 2010. MW-36 and MW-37, which were installed during the second quarter 2011, were sampled for the first time this quarter. Quarterly samples will continue to be collected until 8 quarters of data are available to complete the background report as required by the GWDP. 2.1.4 Parameters Analyzed All routine quarterly groundwater monitoring samples were analyzed for the parameters listed in Table 2 and Part I.E.1.c) 2)ii of the GWDP dated February 15,2010 and July 14, 2011. The accelerated monitoring samples were analyzed for a more limited and specific parameter list as shown in Table 2 of this report. 2 N:lRcquired ReportslOroundwaler QUailerly Monitoring Reporl12011 Q313rd QIr 2011 OW.doc 2.1.5 Groundwater Head Monitoring Depth to groundwater was measured in the following wells and/or piezometers, pursuant to Part I.E.2 of the GWDP dated February 15, 2011and July 14,2011: • The groundwater compliance monitoring wells including MW-20, MW-22, MW- 34, MW-3S, MW-36 and MW-37. • Existing monitoring well MW -4 and all of the temporary chloroform investigation wells. • Piezometers -P-1, P-2, P-3, P-4 and P-S. • Nitrate monitoring wells. • In addition to the above, depth to water measurements are routinely observed in conjunction with sampling events for all wells sampled during quarterly and accelerated efforts, regardless of the sampling purpose. All water levels used for groundwater contour mapping were measured and recorded within S calendar days of each other as indicated by the measurement dates in the summary sheet under Tab D. 2.2 Field Data Attached under Tab B are copies of all field data sheets recorded in association with the quarterly effort for the groundwater compliance monitoring wells referred to in paragraph 2.1.1, above. Sampling dates are listed in Table 1. Attached under Tab C are copies of all field data sheets recorded in association with the July and September 2011 accelerated monitoring and sampling efforts. 2.3 Laboratory Results -Quarterly Sampling 2.3.1 Copy of Laboratory Results All analytical results are provided by one of the Mill's two contract analytical laboratories Energy Laboratories ("EL") or America West Analytical Laboratories ("AWAL"). Table 1 lists the dates when analytical results were reported to the Quality Assurance ("QA") Manager for each well. Results from analysis of samples collected for the third quarter under the GWDP (i.e., all regular quarterly and accelerated samples), are provided in Tab E. Also included under 3 N:lRequired ReponslGroundwater QuanOily Monitoring Repurtl201 j Q313rd Qtr 201 j GW.doc Tab E are the results of analyses for duplicate samples for this sampling effort, as identified in Table 1. The laboratory report dates for samples collected for the July and September accelerated sampling (i.e. quarterly accelerated to monthly) are provided in Table 1. Results from analysis of samples collected for the July and September accelerated sampling (i.e. quarterly accelerated to monthly) are provided in Tab F. Also included under Tab Fare the results of analyses for duplicate samples for this sampling effort, as identified in Table 1. Copies of laboratory QNQuality Control ("QC") Summaries are included with the reported data under their corresponding Tabs. 2.3.2 Regulatory Framework and Groundwater Background Under the GWDP (February 15, 2011 and July 14, 2011), background groundwater quality has been determined on a well-by-well basis, as defined by the mean plus second standard deviation concentration or the equivalent. New GWCLs that reflect this background groundwater quality have been set for all monitoring wells in the January 20, 2010 GWDP. These new GWCLs were in effect for sampling required during the current third quarter monitoring period. Exceedances of the January 21,2010 GWCLs as reported in 2010 reports determined the accelerated monthly monitoring program implemented during this quarter. Exceedances of the GWCLs for the third quarter (July through September) of 2011 are listed in Table 2 for sampling required under the revised GWDP (February 15,2011 and July 14). Table 3 shows the accelerated sampling program which started in the second quarter 2010 and shows the results and frequency of the accelerated sampling conducted since that time. It should be noted, however, that, because the GWCLs have been set at the mean plus second standard deviation, or the equivalent, un-impacted groundwater would normally be expected to exceed the GWCLs approximately 2.5% of the time. Therefore, exceedances are expected in approximately 2.5% of all sample results, and do not necessarily represent impacts to groundwater from Mill operations. 2.4 laboratory Results -Accelerated Monitoring 2.4.1 Copy of Laboratory Results The analytical results for the accelerated monthly monitoring of the various constituents in certain monitoring wells for the quarter are provided at Tab F. 4 N:IRequired RcporlslGroundwale,.Quartcrly Monitoring Repon12011 Q313rd Qlr201 ) GW.doc 2.4.2 Regulatory Framework and Groundwater Background As a result of the issuance of the revised GWDP on January 20, 2010, which sets revised GWCLs, all requirements to perform accelerated monitoring under Part I.G.1 of the previous GWDP ceased effective on January 20, 2010, and the effect of the issuance of the revised GWDP was to create a "clean slate" for all constituents in all wells going forward. This means that accelerated monitoring during the third quarter 2011 was required under the revised GWDP for only those constituents that exceeded the GWCLs in 2010. 2.4.3 Compliance Status Analytes which have exceeded the GWCLs set forth in the GWDP are summarized in Table 2. The analytes which exceeded their respective GWCLs during the third quarter 2011 will be sampled on an accelerated schedule as noted in Table 2. Analytes which exceeded their respective GWCLs during 2010 are currently sampled on an accelerated schedule. A review of the accelerated data collected during third quarter 2011 indicate that several analytes have exceeded their respective GWCLs for two consecutive sampling periods as reported in DUSA's letter to DRC on November 3, 2011. Table 3 summarizes the results of the accelerated sampling program from first quarter 2010 through first quarter 2011. Part I.G.1 c) of the GWDP states, with respect to exceedances of GWCLs, "that the Permittee shall prepare and submit within 30 calendar days to the Executive Secretary a plan and a time schedule for assessment of the sources, extent and potential dispersion of the contamination, and an evaluation of potential remedial action to restore and maintain groundwater quality to insure that Permit limits will not be exceeded at the compliance monitoring point and that DMT or BAT will be reestablished." DUSA submitted an exceedance notice on November 3,2011 for the third quarter 2011 results. The summary in the Exceedance Notice includes, for each exceedance, a brief discussion of whether such a plan and schedule is required at this time in light of other actions cUlTently being undertaken by Denison, as determined by Utah Department of Environmental Quality ("UDEQ") Staff and stated in teleconferences with Denison on April 27 and May 2, 2011. The applicability of the plans and time schedules for assessment was submitted to the Executive Secretary in the November 3,2011 Exceedance Notice. 2.5 Depth to Groundwater and Water Table Contour Map As stated above, a listing of groundwater level readings for the quarter (shown as depth to groundwater in feet) is included under Tab D. The data from Tab D has been interpreted (kriged) and plotted in a water table contour map, provided under Tab H. The water table contour map provides the location and identity of all of the wells and piezometers for which depth to groundwater is recorded. The groundwater elevation at each well and piezometer, measured in feet above mean sea level, and isocontour lines to 5 N:IRequircd RepollslGruundwaler Quarterly Moniloring Repor[12011 Q313rd QIr 20 11 GW.doc delineate groundwater flow directions observed during the quarter's sampling event, are displayed on the map. 3.0 QUALITY ASSURANCE AND DATA VALIDATION The Mill QA Manager performed a QNQC review to confirm compliance of the monitoring program with requirements of the QAP. As required in the QAP, data QA includes preparation and analysis of QC samples in the field, review of field procedures, an analyte completeness review, and quality control review of laboratory data methods and data. Identification of field QC samples collected and analyzed is provided in Section 3.1. Discussion of adherence to Mill sampling Standard Operating Procedures ("SOPs") is provided in Section 3.2. Analytical completeness review results are provided in Section 3.3. The steps and tests applied to check laboratory data QNQC are discussed in Sections 3.4.4 through 3.4.9 below. The Analytical Laboratories have provided summary reports of the analytical QNQC measurements necessary to maintain conformance with National Environmental Laboratory Accreditation Conference ("NELAC") certification and reporting protocol. The analytical laboratory QNQC Summary Reports, including copies of the Mill's Chain of Custody and Analytical Request Record forms for each set of Analytical Results, follow the analytical results under Tabs E and F. Results of review of the laboratory QNQC information are provided under Tab G and discussed in Section 3.4, below. 3.1 Field QC Samples The following field QC samples were generated by Mill personnel and submitted to the analytical laboratory in order to assess the quality of data resulting from the field sampling program: Two duplicate samples were collected during quarterly sampling as indicated in Table 1. The QC samples were sent blind to the analytical laboratory and analyzed for the same parameters as permit-required samples. One duplicate sample was collected during each month of accelerated sampling as indicated in Table 1. The QC samples were sent blind to the analytical laboratory and analyzed for the same accelerated parameters as the parent sample. Two trip blanks were provided by EL and returned and analyzed with the quarterly monitoring samples. One trip blank per month was provided by EL and returned and analyzed with the accelerated monthly monitoring samples. Two trip blanks were provided by AWAL and returned and analyzed with the quarterly monitoring samples. 6 N:lRequired ReportslOroundwaler Quarterly Monitoring Reporl120 II Q313rd Qlr 20 II OW.doc One trip blank per month was provided by A W AL and returned and analyzed with the accelerated monitoring samples. Rinsate samples were not collected during the third quarter 2011 because all equipment used during sample collection was dedicated and did not require decontamination. All wells except MW-37 have dedicated pumps for purging and sampling and as such no rinsate blanks samples are required. MW-37 was sampled with a disposable bailer and no rinsate blank was required. A deionized field blank (DIFB) was not required because equipment decontamination was not required and deionized water was not used during this sampling event. Duplicate and trip blank sample results are shown in Tab G. 3.2 Adherence to Mill Sampling SOPs On a review of adherence by Mill personnel to the existing sampling SOPs, the QA Manager observed that QAlQC requirements established in the QAP were being adhered to and that the SOP's were implemented, except as described below. 3.3 Analyte Completeness Review All analyses required by the GWDP for the quarterly wells were performed. The accelerated quarterly sampling (quarterly to monthly and semi-annual to quarterly) required for this quarter, as shown in Tables 2 and 3, was performed. 3.4 Data Validation The QAP and GWDP identify the data validation steps and data quality control checks required for the groundwater monitoring program. Consistent with these requirements, the QA Manager performed the following evaluations: a field data QAlQC evaluation, a receipt temperature check, a holding time check, an analytical method check, a reporting limit check, a trip blank check, a QAlQC evaluation of routine sample duplicates, a QAlQC evaluation of accelerated sample duplicates, a gross alpha counting error evaluation and a review of each laboratory's reported QAlQC information. Each evaluation is discussed in the following sections. Data check tables indicating the results of each test are provided under Tab G. 3.4.1 Field Data QAlQC Evaluation The QA Manager performs a review of all field recorded parameters to assess their adherence with QAP requirements. The assessment involved review of two sources of information: the Field Data Sheets and the Quarterly Depth to Water summary sheet. Review of the Field Data Sheets addresses well purging volumes and stability of five parameters: conductance, pH, temperature, redox potential, and turbidity. Review of the Depth to Water data confirms that all depth measurements were conducted within a five- day period. The results of this quarter's review are provided in Tab G. 7 N:IR<quired ReportslGroundwater Quarterly Monitoring Reporl120 II Q313rd Qlr 20J I GW.doc Based upon this review, all quarterly sampled locations conformed to the QAP requirement to evacuate two well casing volumes before sampling except for MW-3A, MW-12, MW-23 , MW-24 , and MW-37. In all cases these wells were evacuated to dryness before two casing volumes could be purged. All accelerated sampled locations conformed to the QAP requirement to evacuate two well casing volumes before sampling. During review of the field data sheets, it was observed that sampling personnel consistently recorded depth to water for the quarterly and accelerated sampling programs to the nearest 0.01 foot. The review of the field sheets for compliance with QAP requirements resulted in the observations noted below. The QAP requirements in Section 6.2.7 specifically state that field parameters have to be stabilized to within 10% over at least 2 consecutive measurements. The QAP states that turbidity should be less than 5 Nephlometric Turbidity Units ("NTU") prior to sampling unless the well is characterized by water that has a higher turbidity. The QAP does not require that turbidity measurements be less than 5 NTU prior to sampling. As such the noted observations regarding turbidity measurements greater than 5 NTU below are included for information purposes only. • Turbidity measurements were less than 5 NTU for all of the quarterly wells except MW-5, MW-ll, MW-23 , MW-27, MW-29, MW-32, MW-32 res ample and MW-37. The QAP does not require that turbidity measurements be less than 5 NTU prior to sampling. Per the QAP Section 6.2.7 d) (v) Turbidity measurements prior to sampling were within a 10% Relative Percent Difference ("RPD") for all quarterly sampling wells. • Turbidity measurements were less than 5 NTU for all of the accelerated sampling wells except MW -11. Turbidity measurements prior to sampling were within a 10% RPD for all accelerated sampling wells DUSA's letter to DRC of March 26, 2010 discusses further why turbidity does not appear to be an appropriate parameter for assessing well stabilization. In response to DRC's subsequent correspondence dated June 1,2010 and June 24, 2010, DUSA has completed a monitoring well redevelopment program. The redevelopment report was submitted to DRC on September 30, 2011. Redevelopment results will be discussed with DRC in an effort to come to a consensus regarding turbidity considerations for the groundwater wells at the Mill site. 3.4.2 Holding Time Evaluation QAP Table 1 identifies the method holding times for each suite of parameters. Sample holding time checks are provided under Tab G. All samples were received and analyzed within the required holding time. 8 N:lRcquiretl ReportslGroundwater Quarterly Moniloring Reportl2011 Q313rtl Qtr 2011 GW.doc 3.4.3 Receipt Temperature Evaluation Chain of Custody sheets (for A W AL) and temperature blank data sheets (for EL) were reviewed to confirm compliance with the QAP requirement in QAP Table 1 that samples be received at 6°C or lower. Sample receipt temperature checks are provided under Tab G. All quarterly and accelerated samples were received within the required temperature limit. 3.4.4 Analytical Method Checklist All analytical methods reported by both laboratories were checked against the required methods specified in Table 1 of the QAP. Analytical method check results are provided in Tab G. The review indicated that all quarterly and accelerated samples were analyzed in accordance with Table 1 of the QAP. It is recommended that the QAP be improved and updated to include additional methodologies currently in use by other laboratories certified under the Environmental Lab Certification Program administered by the Utah Department of Environmental Quality ("UDEQ") Bureau of Lab Improvement. Potentially, to accommodate ongoing improvement in technology and methodology, the entire Table 1 and the Chloroform Investigation Appendix table should be revised to include other currently approved analytical methods in use by other Utah certified laboratories. 3.4.5 Reporting Limit Evaluation All analytical method reporting limits reported by both laboratories were checked against the reporting limits specified in the QAP Table 1. Reporting limit evaluations are provided in Tab G. All analytes were measured and reported to the required reporting limits except several sets of routine and accelerated sample results had the reporting limit raised for at least one anaiyte due to matrix interference and/or sample dilution as noted in Section 3.4.9. In all cases the reported value for the analyte was higher than the increased detection limit. 3.4.6 Trip Blank Evaluation All trip blank results were reviewed to identify any blank contamination. Trip blank evaluations are provided in Tab G. All trip blank results associated with both the quarterly and accelerated samples were less than detection level for all VOCs. 3.4.7 QAlQC Evaluation for Routine Sample Duplicates Section 9.1.4 a) of the QAP states that RPDs will be calculated for the comparison of duplicate and original field samples. The QAP acceptance limits for RPDs between the duplicate and original field sample is less than or equal to 20% unless the measured results (described as activities in the QAP) are less than 5 times the required detection 9 N:lRequired RcponslOroundwatcr Quanerly Monitoring Reponl20 II Q313rd Qtr 2011 GW.doc limit. This standard is based on the EPA Contract Laboratory Program National Functional Guidelines for Inorganic Data Review, February 1994,9240.1-05-01 as cited in the QAP. The RPDs are calculated for all duplicate pairs with detections in both the parent and duplicate sample for all analytes regardless of whether or not the reported concentrations are greater than 5 times the required detection limits; however, data will be considered noncompliant only when the results are greater than 5 times the required detection limit and the RPD is greater than 20%. The additional duplicate information is provided for information purposes. All duplicate results were within a 20% RPD in the quarterly samples except for the uranium result in the duplicate pair MW-26/MW-65. Duplicate results are provided under Tab G. All duplicate results were within a 20% RPD in the accelerated samples. Results of the RPD test are provided under Tab G. 3.4.8 Radiologies Counting Error and Duplicate Evaluation Section 9.14 of the QAP requires that all gross alpha analysis reported with an activity equal to or greater than the GWCL, shall have a counting variance that is equal to or less than 20% of the reported activity concentration. An error term may be greater than 20% of the reported activity concentration when the sum of the activity concentration and error term is less than or equal to the GWCL. Section 9.4 of the QAP also requires a comparability check between the sample and field duplicate sample results utilizing the formula provided in the text. The quarterly and accelerated sample and duplicate results met the comparability check specified in the QAP. Results of quarterly and accelerated radiologic sample QC are provided under Tab G. All quarterly and accelerated radiologic sample results met the counting error requirements specified above. 3.4.9 Other Laboratory QAlQC Section 9.2 of the QAP requires that the laboratory's QNQC Manager check the following items in developing data reports: (1) sample preparation information is correct and complete, (2) analysis information is correct and complete, (3) appropriate analytical laboratory procedures are followed, (4) analytical results are correct and complete, (5) QC samples are within established control limits, (6) blanks are within QC limits, (7) special sample preparation and analytical requirements have been met, and (8) documentation is complete. In addition to other laboratory checks described above, DUSA's QA Manager rechecks QC samples and blanks (items (5) and (6)) to confirm that the percent recovery for spikes and the relative percent difference for spike duplicates are within the method-specific required limits, or that the case narrative sufficiently explains any deviation from these limits. Results of this quantitative check 10 N:IRequircd RcportslGroundwater Quarterly Monitoring Reportl20 II Q313rd Q,r 2011 GW.doc are provided under Tab G. All lab QNQC results from both EL and A W AL samples for compounds regulated under the GWDP met these requirements. There were QC results which did not meet laboratory established acceptance limits, as identified in Tab G and described below. There were no qualifiers attached to the A W AL tetrahydrofuran data. Fourteen sets of quarterly sample results (twelve wells and two duplicates) and seven sets of accelerated samples (six samples and one duplicate) had the reporting limit raised for at least one analyte due to matrix interference and/or sample dilution. In all cases the reported value for the analyte was higher than the increased detection limit. Data are qualified by the laboratory with a "D" flag when the reporting limit is raised due to dilution or matrix interferences. The check samples included at least the following: a method blank, a laboratory control spike ("LCS"), a matrix spike ("MS") and a matrix spike duplicate ("MSD"), or the equivalent, where applicable. It should be noted that: • Laboratory fortified blanks are equivalent to LCSs. • Laboratory reagent blanks are equivalent to method blanks. • Post digestion spikes are equivalent to MSs. • Post digestion spike duplicates are equivalent to MSDs. • For method E900.1, used to determine gross alpha, a sample duplicate was used instead of a MSD. All qualifiers, and the corresponding explanations reported in the QNQC Summary Reports for any of the check samples for any of the analytical methods were reviewed by the QA Manager. The QAP Section 8.1.2 requires that a MS/MSD (referred to as Duplicate Spike [Matrix spike] in the QAP) pair be analyzed with each analytical batch. The QAP does not specify acceptance limits for the MS/MSD pair, and the QAP does not specify that the MS/MSD pair be prepared on DUSA samples only. Acceptance limits for MS/MSDs are set by the laboratories. The review of the information provided by the laboratories in the data packages verified that the QAP requirement to analyze a MS/MSD pair with each analytical batch was met. While the QAP does not require it, the recoveries were reviewed for compliance with the laboratory established acceptance limits. The QAP does not require this level of review and the results of this review are provided for information only. The information from the Laboratory QNQC Summary Reports indicates that the MS/MSDs recoveries and the associated RPDs for all quarterly samples were within acceptable laboratory limits for all regulated compounds except as indicated in Tab G. The recoveries and RPDs which are outside of the laboratory established acceptance limits do not affect the quality or usability of the data because the recoveries and RPDs outside of the acceptance limits are indicative of matrix interference. Furthermore, the 11 N:lRequired ReportslGroundwater Quarterly Monitoring ReporLI2011 Q313rd Qlr 20 II GW.doc quarterly VOC sample (C11080529) and two of the metals samples (CI1090045) that were spiked for the MS/MSD analyses were not collected at the Mill, and as such the matrix interference is not applicable to the Mill samples reported herein. The QAP requirement to analyze a MS/MSD pair with each analytical batch was met and as such the data are compliant with the QAP. The information from the Laboratory QAlQC Summary Reports indicates that the MS/MSDs recoveries and the associated RPDs for all accelerated samples were within acceptable laboratory limits for all regulated compounds except as indicated in Tab G. The percent recovery for the July monthly manganese sample in (Cl1070824) spiked for the MS/MSD analyses was not collected at the Mill, and as such the matrix interference is not applicable to the Mill samples reported herein. The QAP requirement to analyze a MS/MSD pair with each analytical batch was met and as such the data are compliant with the QAP. The QAP specifies that surrogate compounds shall be employed for all organic analyses but the QAP does not specify acceptance limits for surrogate recoveries. The analytical data associated with the quarterly and accelerated sampling met the requirement specified in the QAP. The information from the Laboratory QAlQC Summary Reports indicates that the surrogate recoveries for all quarterly samples were within acceptable laboratory limits for all surrogate compounds except as indicated in Tab G. In all instances the surrogate recoveries outside of acceptance limits were above the upper limit or had a high recovery, indicating a high bias to the individual sample results. A high bias means that reported results for this analyte will tend to be higher than the actual concentration. There is no effect on the quality or usability of the data because there are multiple surrogates added to each sample and all other surrogates were within limits. Furthermore, there are no QAP requirements for surrogate recoveries. Since surrogate compounds were added to all of the organic analyses as required by the QAP, the data are compliant with the QAP requirements. The information from the Laboratory QAlQC Summary Reports indicates that the LCS recoveries for both the quarterly and accelerated samples were within acceptable laboratory limits for all LCS compounds. The QAP Section 8.1.2 requires that each analytical batch shall be accompanied by a reagent blank. All analytical batches routinely contain a blank, which is a blank sample made and carried through all analytical steps. For the Mill samples, a method blank is prepared for all analytical methods. Per the approved QAP, contamination detected in analysis of method blanks will be used to evaluate any analytical laboratory contamination of environmental samples. The QAP does not specify the process for evaluation of method blanks. For consistency, the QAP required evaluation criteria for rinsate blanks will be used. The QAP criteria for rinsate blanks states that nonconformance will exist when blanks are within an order of magnitude of the sample results. Two analytes (selenium in the July accelerated samples and bicarbonate in the third quarter samples) were reported in the method blanks from EL. Method blank results are included in Tab E. In all cases where the associated sample reported a positive 12 N:IRequired Rep0rlslGmundwater Quarterly MonitOring Reportl2011 Q313rd Qtr 2011 GW.doc detection, the method blank results were less than an order of magnitude relative to the positive sample results reported, that is the detections meet the QAP criteria. The method blank detections reported by EL do not affect the quality or usability of the data due to the high level of the constituents in the samples relative to the associated method blank concentrations. Additionally, blank detections are indicative of a false positive or high bias to the sample results as the laboratory contribution to the results would likely cause higher sample results. The QAP requirement to analyze a method blank with each batch and evaluate the results has been completed as required. It is important to note that the selenium detection in the method blank for the July accelerated samples is the result of the low reporting limit (RL) used by EL for selenium, which is lower than the RL for selenium used for the samples. The corrective action for method blank detections in the Second Quarter 2011 Groundwater Report, submitted August 31, 2011, specified that the RLs for method blanks would be changed to be the same as the sample RLs. This corrective action was implemented as described in the Second Quarter 2011 Groundwater Report beginning with the samples collected in August 2011. The July data were received prior to completion of the corrective action report submitted with the Second Quarter 2011 Groundwater Report on August 31, 2011. 4.0 CORRECTIVE ACTION REPORT There are no corrective actions resulting from third quarter 2011 groundwater sampling event. 4.1 Assessment of Previous Quarter's Corrective Actions The second quarter 2011 report identified a corrective action for 29 low level detections in the method blanks. An investigation into the low level method blank detections in the second quarter of 2011 was completed by the QA Manager. The investigation indicated that the RLs used by the laboratory for method blanks are below the QAP-required RLs used for groundwater samples which results in numerous false detections to be reported in the method blanks. DUSA directed EL to use the same QAP-required RLs for the method blanks as are used for the groundwater samples to eliminate false reports of analytes in the method blanks below the levels that are reported in the groundwater samples. The corrective action was successful as the number of method blank detections reported in the third quarter 2011 decreased significantly and the problem has been eliminated. No further corrective action is necessary at this time. 5.0 TIME CONCENTRATION PLOTS Time concentration plots for each monitoring well for the following constituents: chloride, fluoride, sulfate, and uranium, are included under Tab 1. Time concentration plots are completed consistent with the EPA Document Statistical Analysis of 13 N:lRequired Rep0rlslGroundwalcr Quarterly Monitoring Rcporll20 II Q3131 d Qlr 20 II GW.doc Groundwater Monitoring Data at ReRA Facilities, Unified Guidance, March 2009 (EPA530/R-09~007). F~r the p~ose of these plots, onlr extrem~ outliers (any value that exceeds three hmes the mterquarttle range above the 75t percentile and below the 25 th percentile) are removed. For the purpose of compliance, extreme outliers are not removed. 6.0 ELECTRONIC DATA FILES AND FORMAT DUSA has provided to the Executive Secretary electronic copies of all laboratory results from groundwater quality monitoring conducted during the quarter in Comma Separated Values ("CSV"), from the EL data; and in Electronic Data Deliverable C'EOD") format from the A W AL data. A copy of the transmittal e-mail is included under Tab J. 14 N;\I4<lulre.l Repon.,IUroIJI1<iWllll'f QII,,""fly Muniloting Repnn\2QI I Q3\31'tl Qlf 2011 .W.doc 7.0 SIGNATURE AND CERTIFICATION This document was prepared by Denison Mines (USA) Co rp. on November 30, 201 1. DENISON MINES (USA) CO RP. By: Dav i . ry enlund Vice President, Regularory Affairs and Counsel 15 Certification: T certify, under penalty of law, that this document and all attachment were prepared under my direction or supervision in accordance with a y tern de igned to as. nre that qualified per onnel properly gatber and evaluate the information ubmitted. Ba ed on my inquiry of the person or persons who manage tbe ystem, or tbose per ons directly responsible for gathering tbe information, the information ubmitted i , to the best of my knowl.edge and belief, true, accUJate, and complete. I am aware that there are ignificant p nalties for submitting false information, including the possibility of fine and nt f r knowing violations. Dav' Vice Pre ide t, Regulatory Affairs and Counsel Denison Mines (USA) Corp. 16 N:IR(.,<!uu(.'flllcpon H"undwu,crQ)lnnclly MonilorinS Reporl\2011 QJ\JnJ Qlr2011 OW.doe Tables Table I: Summary of Well Sampling for Q3 20 II Purpose for Sampling WeD Normal Frequency this Quarter Sample Date Date of Lab Report Quarterly Samples MW-11 Quarterly Quarterly 8/3/2011 9/19/2011 (8/12/2011) MW-14 Quarterly Quarterly 8/31201l 9/19/2011 (8/12/2011) MW-14 res ample Quarterly Quarterly 8/30/2011 10/4/2011 ** MW-2S Quarterly Quarterly 8/3120ll 9/19/2011 (8112/2011) MW-25 res ample Quarterly Quarterlv 8/30/2011 10/4/2011 * * MW-26 Quarterly Quarterly 8/3/201l 9/19/2011 (811212011) MW-26 resample Quarterly Quarterly 8/30/201 I 10/412011 ** MW-30 Quarterly Quarterly 8/3/201l 9/1912011 (8/12/2011) MW-31 Quarterly Quarterly 812/2011 9119120 II (8112/2011) MW-35 Quarterly Background 8/2/2011 9/19/2011 (8/1212011) MW-35 resample Quarterly Background 8/30/201l 10/4/2011 ** MW-36 Quarterly Background 8/912011 9/[41201 I MW-37 Quarterly Background 8/ll/2011 9/141201 I MW-65 I per Batch Duplicate of MW-26 8/312011 9/19/2011 (8/1212011) MW-65 resample I per Batch Duplicate of MW-26 8/30/201 I 10/41201 1** Accelerated Sam{>les Accelerated Quarterly Samples MW-2 Semi-annually Accelerated 8/8/2011 9/1412011 MW-3 Semi-annually Accelerated 8/1012011 9/14/201 I MW-3A Semi-annually Accelerated S/ll/2011 9/1412011 MW-5 Semi-annually Accelerated 8/912011 9/1412011 MW-12 Semi-annually Accelerated 8/9/2011 9/1 4120 II MW-IS Semi-annually Accelerated 8/10/201 I 9/[4/201 I MW-IS resample Semi-annually Accelerated 9/2 1I20 I I 1014/2011 *** MW-19 Semi-annually Accelerated 7/20/201 I Field pH 7/20/20 I I MW-23 Semi-annually Accelerated 8/4/201 I Field pH 8/4/201l MW-24 Semi-annually Accelerated S/4/2011 9/19/201 I MW-27 Semi-annually Accelerated 8/8/201 I 9/14/201 I MW-28 Semi-annually Accelerated S/8/201 I 9/14/201 I MW-29 Semi-annually Accelerated 8/912011 9/[41201 I MW-32 Semi-annually Accelerated 8/21201 I 9/1912011 MW-32 resample Semi-annually Accelerated 8/30/2011 10/4/20 II ** MW-70 I per Batch Duplicate ofMW-18 8/1012011 9/1412011 MW-70 resample I per Batch Duplicate of MW -18 9/2112011 1014120 I 1*** Accelerated July Monthly MW-11 Monthly Accelerated 7/6/2011 6/[5/20 I I (7112/20 I 1) MW-14 Monthly Accelerated 7/5/201 I Field pH 7/5/2011 MW-25 Monthly Accelerated 7/6/2011 8/1/201 I MW-26 Monthly Accelerated 7/6/201 I 8/1/2011 MW-30 Monthly Accelerated 7/5/2011 8/[1201 I MW-31 Monthly Accelerated 7/5/2011 8/[1201 I MW-35 Monthly Accelerated 712012011 8/10/201 I MW-65 I per Batch Duplicate of MW-3 I 7/5/2011 8/1/201 I Accelerated June Monthly MW-II Monthly Accelerated 91712011 10/4120 II (9/[512011) MW-14 Monthly Accelerated 9/S12011 Field pH 9/8120 II MW-2S Monthly Accelerated 91712011 10/412011 MW-26 Monthly Accelerated 9171201 I 10/412011 MW-30 Monthly Accelerated 91712011 10/4/2011 MW-31 Monthly Accelerated 9/6/2011 1014/2011 MW-35 Monthly Accelerated 9171201 I 10/412011 MW-65 I per Batch Duplicate of MW-35 9171201 I 10/4/201 I Notes: Date in parenthesis depicts the date that tetrahydrofuran was reported from American West Analytical Laboratories. All other constituents were reported from Energy Laboratories. ** Resampled because sample preservation (pH) outside acceptance limits when samples were received at the lab. **. Resampled for thallium only due to an inadvertent lab omission of the thallium analysis from the duplicate sample. Tnblc2 Monitoring WeU GWCLln First Result Routine Sample Accelerated Exceedance Start of Accelerated Constituent Exceeding GWCL Exceeding the (Water Class) Current GWDP GWCL Frequency Frequency Sample Period Monitoring Quar(~rly Wells Accelerated to Momhly SAnlplillg' MW-II (Class II) Manganese [ugIL) 131.29 134 Quarterly Monlhly QI 2010 May 2010 Telrahydrofuran (uJ1/Ll 11.5 12 Quarter]y Monlbly Q12010 Mav2010' MW-14 (Class III) Field pH (S.U.) 6.5 -8.5 6.45 Quarlerly Monlhly QI2010 May2010 MW-25 (Class Ill) Uranium (ug/L) 6.5 6.57 Quarlerly Monlhly Q32010 January 2011" Field 011 S.U. 6_' -R.5 6.36 uarleriv Monlh)y 42010 Januarv 20 II NII.mlc+ Nilrile (II~ N) (m..IIL) 0.62 1.3 Quarlerlv Munlhty Q12010 May 2010 Uranium (ugIL) 41.8 58.7 Quarlerlv Monlhly 012010 May 2010 Chloroform (uolL) 70 700 Quarlerly Mumbly QI2010 May2010 MW-26 (Class Ill) Chloride m' I, 5i!31 72 uarledv Monthly 12UIO Mav2010 Mf!J hyl.n· Chhlrid. ,,,ilL -' 9.9 ( oarlerly MOnlhly 22010 June2010 Field pH IS.U.) 6.74 -8.5 6.59 Quarlerly Monlhly QI2010 Mav 2010 'fDS ml!!l. 3284.19 3440 Ouarlerly Monlhly 32010 January 20 II' Nilrale + Nilrile (as N) (mgIL) 2.5 16.1 Quarlerly Monlhly QI2010 May2010 MW-30 (Class II) Chloride (mgIL) 128 134 Quarlerly Monlhly QI2011 May 2011 Field pH (S.U.) 6.5 -8.5 5.66 Quarterly Monlbly Q22011 July 2011 Selenium (ugIL) 34 35.3 Quarterly Monlhly Q22010 July 2010 Nilrale + Nilrile (as N) (mgIL) 5 21.7 Quarlerly Monlbly QI2010 May 2010 TDS (mgIL) 1320 1330 Quarlerly Monlhly Q32010 January 20 II" MW-31 (Class III) Sui fale (mgIL) 532 539 Quarlerly Monlhly Q42010 Mareb 2011 Field pH (S.U.) 6.5 -8.5 6.16 Quarlerly Monlhly Q22011 July 2011 Chloride (m~/L) 143 145 Quarterly Monthly Ql2011 May2011 Uranium (ug/L) 7.5 21.7 Quarlerly Monlhly Q22011 July 2011 Thallium (ugiL) 0.5 0.52 Quarterly Monthly Q32011 November 201 I MW -35 (Class II) Gross Alpha minus Rn & U (pCiIL) 3.75 4.5 Quarterly Monthly Q32011 November 2011 Manganese (ug/L) 200 369 Quarlerly Monlhly Q22011 July 2011 Semi-Annual Wells Accelerated to Ouarterly Sarno]iru • Monitnring Well GWCLin First Result Sample Accelerated Exceedance Start of Accelerated (Water Class) Constituent Exceeding GWCL Current GWDP Exceeding the Frequency Frequency Sample Period Monitoring GWCL MW-2 (Class III) Gross Alpha minus Rn & U (pCiIL) 3.2 3.5 Semi-Annually Quarlerly Q42010 QI2011 MW-3 (Class JII) Selenium (ugIL) 37 37.2 Semi·Annually Quarlerly Q22010 Q32010 Field pH (S.U.) 6.5 -8.5 6.14 (6.25) Semi-Annually Quarlerly Q22010 Q32010 Fluuride (mgIL) 0.68 0.71 Semi·Annually Quarlerly Q22010 Q32010 Field pH (S.U.) 6.5 -8.5 6.23 (6.24) Semi·Annually Quarlerly Q22010 Q32010 MW-3A (Class III) Sulfale (mgIL) 3640 3680 Semi-AnnuaJly Quarlerly Q22010 Q32010 TDS (mj!/l) 5805 5860 Semi-Annuallv uarlerly _Q22010 Q32010 SelenIum Iwn. Kg 94.8 Scmi·AnnuallY OU.flU,·lv 042010 201 MW-5 (Class II) Uranium (ugIL) 7.5 11.6 Semi-Annually Quarterly Q42010 012011 Field oH [S.U.) 6.5 -M_~ 6.47 Semi-Annuallv uarlerlv 42010 12011 MW -12 (Class III) Selenium (ugIL) 25 25_7 Semi-Annually Quarlerly Q22010 Q32010 Thallium (ugIL) 1.95 373 Semi·Annually Quarterly Q22010 Q32010 MW-18 (Class 1Il) Sulfale (mgIL) 1938.9 1950 Semi-Annually Quarterly Q22010 Q32010 Field pH (S.U.) 6.25-8.5 6.2 Semi-Annually Quarterly Q22010 Q32010 oms (mgl1,) 3198.77 3280 Semi-Annually Quarlerly Q22010 Q32010 MW -19 (Class III) Field pH (S.U.) 6.78-8.5 6.61 (6.66) Semi-Annually Quarlerly Q22010 Q32010 MW-23 (Class III) Field pH (S.U.) 1i.5 -8.5 6.18 Semi·Annually Quarlerly Q22010 Q32010 MW-24 (Class III) Cadmium (ugIL) 2.5 4.28 Semi-Annually Quarlerly Q22010 Q32010 Thallium (ugIL) I 1.3 Semi·Annually Quarterly Q22010 Q32010 Field rH (S.U.) 6.5 -8.5 5.91 (5.78) Semi-Annually Quarlerly Q22010 Q32010 Nilrale + Nittile (as N) (mgIL) 5,6 5.8 Semi-Annually Quarlerly Q22010 Q32010 MW-27 (Class III) Chloride (mgIL) 38 42 Semi-Annually QUdrLcrly Q22010 Q32010 Sulfale (mgIL) 462 469 Semi·Annually Quarlerly Q22010 Q32010 Fiel,l pH (S.U_) 6.5 -8.S 6.39 Semi-AnnuaUy Quarterly Q32011 042011 TDS (mgIL) 1075 1160 Semi·Annually Quarlerly Q22010 Q32010 MW-28 (Class 1Il) Chloride (mgIL) 105 108 Semi-Annually Quarterly Q22010 Q32010 Field pH (S.U.) 6.1 -8.5 5.67 Semi-Annually Quarlerly Q22010 Q32010 MW-29 (Class III) Field pH (S.U.) 6.46 -8.5 6.17 Semi-Annually Quarterly 042010 Q2201l Iron (ugIL) 1869 3010 Semi-Annually QuuI\erly Q22011 July 2011 MW-32 (Class III) Gross Alpha minus Rn & U (pCiIL) 3.33 5.4 Semi·Annually Quarlerly Q22010 Q32010 Field pH (S.U.) 6.4 -8_5 6.03 Semi-Annually Qunrterly Q22010 Q32010 Noles: • GWCL Values arc laken frum February 15.2011 and July 14.2011 version oflhe GWDP . • THF has nol reporled an exceedance since Q I 2010 and has had 16 conseculive monoliring rcsulls below Ihe GWCL. UDEQ requires conlinued moniloring oflhi. coosliluent. •• Table 2 uflhe 2010 Q3 Groundwaler reporllisled Ibe starl ofaceeleraled moniloring as Q42010. Acceleraled monitoring began in QI 2011. o Values lisled in parenlheses are resample resulls from Ihe same sampling period. Sampled were recollecled due field or laboralory problems as nUled in Ihe specific reporl for Ihal sample period. Higbligbted lexl sbows accelerated requirements resulting from Q3 2011 sampling event. Table 3 -GWCL Exceedances for Third Quarter 2011 under the July 14,2011 GWDP Q12010 Results Q2 2010 Results CU 2010 Results Q4 Z010 Results I ,MonItoring GWOL In July May 2010 May 2010 June2(UO June 2010 JUly 2010 August 2010 Odober20UJ October 2010 December December Well (Water Constituent ~dlDfl 14, 2011 QI2010 QI2010 Q12OIO Q12010 Monchly Monthly Monthly Monthly Monthly July 2010 Monthly August 2010 Q32010 Q32010 Montidy J\{ontbly 042010 Q4lO10 2010 2010 Moochly Class) GWCL GWDP Salllple Date RII.~uJt $amplaDate ReAull Sample Date Result Sample Date ReSUlt ample Oat Monchly Result Sample Dafe Montbly Result Sample Date Result Samj)le I>ate Rmtit SlImpleDate Result Monthly Result SalllJlle Date RequlreclQllal1edy Sampling Wen, MW-ll Manganese (ug/L) 131.29 2/10110 134 4/28/10 137 5/24/10 122 6/16/10 99 7120110 123 8/25110 138 9/8/10 128 10/20110 141 11111/10 133 12115110 158 (Class II) Tetmhydrofuran (ug/L) 11 .5 2/10/10 12 4/28/10 5.2 5/24/10 <1.0 6/16/10 <1.0 7127110 2.17 8/25110 <1.0 9/8/10 <1.0 <1.0 <1.0 <1.0 MW-14 Field pH (S.U.) 6.5 -8.5 2/2/10 6.45 (Class JIll 4/2111 0 6.29 5/21110 6.36 6/16/10 6.45 7120110 7.19 8/25/10 6.48 9/8/10 6.51 10/20110 6.60 11/10/10 6.37 12115110 6.47 MW-25 (Class Field pH (S.u.) 6.5 - 8.5 6.53 7.2 NS NA NS NA NS NA NS NA 6.58 NS NA 11110/10 6.36 NS NA III) 2126/2010 4/28/2010 9/812010 Uranium 6.5 5.93 6.43 NS NA NS NA NS NA NS NA 6.57 NS NA 5.89 NS NA Nitrate + Nitrite (as N) 0.62 1.3 2 0.3 0.4 0.6 0.6 0.7 0.4 0.2 0.4 (mg/l) Uranium (uglL) 41.8 58.7 66.7 37.4 36.6 34.4 71.8 72.7 37.5 30.4 29.6 Chloroform (ugIL) 70 700 1700 800 940 900 2800 2100 1000 1900 1400 Chloride Cmg/L) 58.31 72 57 80 47 52 49 64 52 48 52 MW-26 Field pH (S.U.) 6.74 - 8.5 212110 6.59 4/22/10 7.18 5/21/10 6.36 6116110 6.98 7121110 6.45 8116/10 6.39 9/26110 6.60 10120110 6.61 11115110 6.49 12/15110 6.45 (Class III) Dichloromethane (Methylene Chloride) 5 1 9.9 NR 2.2 12 24 45 5.5 16 1.2 (ugIL) TDS (mg/L) 3284.19 3100 3280 NS NS NS NS 3440 NS 3140 NS Gross Alpha minus Rn & 4.69 2.4 0.6 NS NS NS NS 2.5 NS 6.4 NS U (pCilL) Nitrate + Nitrite (as N) 2.5 16.1 15.8 17 15.3 7121110 16 8124110 16 15 15 15 16 (mg/L) MW-30 Chloride (mgIL) 128 2/9/10 127 4/27/10 97 5121110 NS 6/15110 NS NS NS NS NS 9/14/10 III 10119110 NS 11/9110 126 12114110 NS (Class II) FieldllH (S.U.) 6.5 - 8.5 6.81 6.55 6.62 7.47 712112010 6.82 8124110 6.73 6.80 6.77 6.75 6.65 Selenium (ug/l) 34 32 35.3 NS NS 7/27/10 33.5 8124/10 35.6 32.6 32.4 32.2 30.5 Nitrate + Nitrite (as N) 5 21.7 22.5 5/21/10 23 6/15/10 21.1 7/21110 20 8124110 22 21 10/19110 20 20 20 (mg/L) MW-31 TDS (JIlg/I~) 1320 1150 1220 NS NA NS NA NS NA NS NA 1330 NS NA 1320 NS (Class IJI) Chloride Cmg/L) 143 2/9/10 128 4/20/10 128 NS NA NS NA NS NA NS NA 9/13/10 139 NS NA 11/9110 138 12/14/10 NS Field pH (S.U.) 6.5 -8.5 6.96 7.38 5121110 6.95 6115/10 7.01 7121110 7.8 8124/10 7.1 7.66 10/19/10 6.92 6.98 6.95 Sulfate (mg/L) 532 507 522 NS NA NS NA NS NA NS NA 527 NS NA 539 NS Manganese (ugIL) 200 NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA 698 I NS NA MW-35 Thallium (ugll) 0.5 NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA 1.14 J NS NA (Class II) Gross Alpha minus Rn & 11/30/10 U (PCilL) 3.75 NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA 2.6 NS NA Uranium (uglL) 7.5 NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA 27.2 1 NS NA Required Semi·Annual Sampling Wells MW-2 (Class Gross Alpha minus Rn & 3.2 NS NA 1.2 NS NA NS NA NS NA NS NA NS NA NS NA 3.5 NS NA Ill) U (pCi/L) MW-3 (Class Selenium Cug/l) 37 NS NA 37.2 NS NA NS NA NS NA NS NA 35.5 NS NA 38.8 NS NA ill) Field pH (S.U.) 6.5 - 8.5 NS NA 5/3110 6.14(6.25) NS NA NS NA NS NA NS NA 9120/10 6.39 NS NA 11119/10 6.35 NS NA Fluoride (Mg/L) 0.68 NS NA 0.71 NS NA NS NA NS NA NS NA 0.63 NS NA 0.77 NS NA MW-3A Field pH (S.U.) 6.5 -8.5 NS NA 6.23 (6.24) NS NA NS NA NS NA NS NA 6.42 NS NA 6.21 NS NA (Class 1II) Sulfate (mglL) 3640 NS NA 5/4/10 3680 NS NA NS NA NS NA NS NA 9/21110 3630 NS NA 11122110 3850 NS NA TDS (mg/L) 5805 NS NA 5860 NS NA NS NA NS NA NS NA 5470 NS NA 5330 NS NA Selenium (uglL) 89 NS NA 81.4 NS NA NS NA NS NA NS NA NS NS NA 94.8 NS NA MW-5 (Class Uranium (ugIL) 7.5 NS NA 4/26/10 0.39 NS NA NS NA NS NA NS NA NS NA NS NA 11111110 11.6 NS NA II) MW-12 Field pH (S.D.) 6.5 -8.5 NS NA 4127/10 7.16 NS NA NS NA NS NA NS NA 6.62 NS NA 11/19/10 6.47 NS NA (Class III) Selenium (uglL) 25 NS NA 25.7 NS 9/20/10 NS 27.6 NS NA NA NS NA NS NA NS NA 31.9 NA Thallium (ugll) 1.95 NS NA 3.73 NS NA NS NA NS NA NS NA 3.64 NS NA 3.57 NS NA MW-18 Sulfate (mgIL) 1938.9 NS NA 1950 NS NA NS NA NS NA NS NA 1930 NS NA 1910 NS NA (Class III) 5/4110 9115/10 11118110 Field pH (S.U.) 6.25-8.5 NS NA 6.2 NS NA NS NA NS NA NS NA 7.23 NS NA 6.37 NS NA TDS (mg/L) 3198.77 NS NA 3280 NS NA NS NA NS NA NS NA 3190 NS NA 3030 NS NA Ql201.0 Results Monitoring Constituent Exceeding GWCLin QI ample Well (Wafer Curftnl Class) GWCL GWD]J Date MW-19 (Class III) Field pH (S.U.) 6.78-8.5 NS MW-23 Field pH (S.U.) 6.5 -8.5 NS (Class III) MW-24 Cadmium (ugll) 2.5 NS (Class III) Thallium (uglL) I NS Field pH (S.U.) 6.5 - 8.5 NS Nitrate + Nitrite (as N) 5.6 NS (mglL) Chloride (mg!L) 38 NS MW-27 Sulfate (mglL) 462 NS (Class III) Field pH (S.D.) 6.5-8.5 NS TDS (mgIL) 1075 NS Gross Alpha minus Rn & 2 NS U (pCiIL) MW-28 Chloride (mglU 105 NS (Class III) Field pH (S.U.) 6.1-8.5 NS MW-29 Iron (ugll) 1869 NS (Class III) Field pH (S.U.) 6.46 -8.5 NS Gross Alpha minus Rn & 3.33 NS MW-32 U (pCi/L) (Class III) Field pH (S.U.) 6.4 -8.5 NS Notes: GWCL values are taken from February 15,2011 version of GWDP. NS = Not Required and Not Sampled NR = Required and Not Reported NA = Not Applicable Exceedances are shown in yellow QI Result NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Values in 0 parentheses are the field pH measurements for the resampled analyses. Q2 2010 Results Q2Sampit May Monthly May Monthly June Monthly .June Monthly July Monthly .July Monthly Q2Resuit Date Sample Datt Result Sample Date Re.~ult Sample Date Resull Required Semi·Annual SampUllg Wtlis CODtillued 5/4110 6.61 (6.66) NS NA NS NA NS NA 4122110 6.1ll NS NA NS NA NS NA 4.28 NS NA NS NA NS NA 5/6110 1.3 NS NA NS NA NS NA 5.9/ (5.78) NS NA NS NA NS NA 5.ll NS NA NS NA NS NA 42 NS NA NS NA NS NA 469 NS NA NS NA NS NA 5/3110 6.78 NS NA NS NA NS NA 1160 NS NA NS NA NS NA 1.6 NS NA NS NA NS NA 4/19/10 1011 NS NA NS NA NS NA 5.67 NS NA NS NA NS NA 4127/10 1630 NS NA NS NA NS NA 6.82 NS NA NS NA NS NA 5.4 NS NA NS NA NS NA 4/20110 6.03 NS NA NS NA NS NA I The revised permit dated February 15,2011 was received after the Exceedance Notice for was submitted on February 14, 2011. It is reported as an exceedance in this notice, but was not reported in Q4 2010. Q3 2010 Rasults Q4 2010 Results August Q3Sampie Ottober October Q4 ample December December Monthly upt ClJRtsalt MoDthly M9uthly Q4Result MOnthly Monthly Sample Date Monthly Result Date ample Date Result Date Sample Date Rcsull NS NA 9115/10 6.93 NS NA 11118110 6.8 NS NA NS NA 9114110 7.05 NS NA 11/22110 6.44 NS NA NS NA 5.06 NS NA 3.22 NS NA NS NA 9/21110 1.57 NS NA III I 711 0 1.09 NS NA NS NA 6.64 NS NA 6.1 NS NA NS NA 5.9 NS NA 5.7 NS NA NS NA 42 NS NA 45 NS NA NS NA 461 NS NA 452 NS NA 9/14110 11/12/10 NS NA 7.68 NS NA 6.89 NS NA NS NA 1060 NS NA 1110 NS NA NS NA NA NS NA 2.4 NS NA NS NA 9/14110 106 NS NA 11112110 107 NS NA NS NA 5.91 NS NA 5.72 NS NA NS NA NS NA NS NA 1119/10 1490 NS NA NS NA NS NA 6.17 NS NA NS NA 2.9 NS NA ll.ll NS NA 9/13/10 III I 011 0 NS NA 6.33 NS NA 6.05 NS NA a e -T bi 3 GWCLE d xcee ances or Ir £ Th' d Q oarler un er t e Iy , 2011 d h JuJ 14 2011 GWDP Q1 2011 Results Q2 2011 Results Q3 2011 Results GWCLin January January March 2011 May 2011 June 2011 September Monitoring Well Constituent Exceeding July 14, 2011 2011 Q12011 Q12011 Monthly March 2011 Q22011 Q22011 Monthly May 2011 Monthly June 2011 July 2011 July 2011 Q32011 Q32011 2011 September (Water Class) GWCL 2011 Monthly Monthly Sample Result Sample Monthly Sample Result Sample Monthly Sample Monthly Monthly Sample Monthly Result Sample Result Monthly 2011 Monthly Sample Frequency GWDP Sample Sample Date Date Result Date Date Result Date Result Date Date Sample Date Result Date Result Required QuarterlySan\pJing Wells MW-II (Class II) Manganese (ug/L) 131.29 1111111 121 2/2111 145 3115111 68 4/4/2011 148 511012011 170 6115/2011 121 151 8/312011 118 106 Quarterly Tetrahydrofuran (l!gIlJ 7/612011 8/30/11 91712011 11.5 <1.0 <1.0 <1.0 <1.0 <1.0 6/2012011 <1.0 <1.0 <1.0 <1.0 Quarterlv MW-14 (Class Field pH (S.U.) 6.5 -8.5 1111111 6.37 217111 6.22 3114111 6.76 4/412011 6.63 5110/2011 6.37 6115/2011 5.83 7/5/2011 6.4 8/312011 6.23 9/8/2011 6.50 QUalterly III) (6.41) Field pH (S.U.) 6.5 -8.5 6.44 6.66 6.79 6.7 6.1 5.77 6.29 8/312011 6.42 6.54 Quarterly MW-2S (Class III) 1111111 2/2111 3115/11 4/4/2011 511112011 6/2012011 7/6/2011 8/30/11 (6.54) 91712011 Uranium 6.5 7.02 4.77 6.8 5.56 6.72 7.06 6.74 8/3/2011 6.37 5.96 Quarterly Nitrate + Nitrite (as N) 0.62 0.2 0.25 0.6 0.8 0.4 0.3 0.9 0.6 2.4 Quarterly (mglL) Uranium (uglL) 41.8 32 69.3 31.8 60.2 57.4 18.5 57.1 19.0 56.1 Quarterly Chloroform (ug/L) 70 800 730 1200 390 1900 730 300 1000 1300 Quarterly Chloride (mgIL) 58.31 52 59 64 64 54 39 64 60 66 Qumerly MW-26 (Class Field pH (S.U.) 6.74 -8.5 6.83 6.06 6.89 6.22 6.43 6.52 6.35 8/312011 6.07 6.71 Quarterly III) 1112111 2116111 3115/11 411/2011 5110/2011 6/20/2011 7/612011 8/30/11 (6.58) 91712011 Dichloromethane (Methylene Chloride) 5 <1.0 10 14 3.1 20 7 2.4 10 7.9 Quarterly (ugll) TDS (mg/L) 3284.19 3100 3270 3140 3310 3140 3020 3270 3190 3200 Qumerly Gross Alpha minus Rn & 4.69 NS 3 2.7 3.3 3.9 4.3 2.8 2.7 2.5 Quarterly U (pCilL) Nitrate + Nitrite (as N) 2.5 15 16 17 16 16 17 17 14 16 Quarterly (mgIL) MW-30 (Class II) Chloride (mglL) 128 1110111 NS 2/1111 134 311411 1 NS 4111/2011 134 511012011 128 612012011 127 7/512011 127 8/312011 126 91712011 145 Quarterlv Field pH (S.U.) 6.5 -8.5 6.65 6.96 7.10 6.83 6.7 5.66 6.65 6.61 6.80 Quarterly Selenium (uglL) 34 36.2 34.7 34 44.4 38.3 38.7 32.4 39.7 32.4 Quarterly Nitrate + Nitrite (as N) 5 19 21 22 21 20 22 22 20 21 Quarterly (m!!lL) MW-31 (Class TDS (mgIL) 1320 1240 1220 1250 1370 1290 1330 1280 1300 1300 Quarterly III) Chloride (mglL) 143 1110111 NS 211111 145 3114111 NS 41112011 143 511012011 143 6120/2011 145 7/5/2011 148 81212011 148 91612011 148 Quarterly Field pH (S.U.) 6.5·8.5 6.65 7.21 7.43 7.01 6.73 6.16 6.64 6.67 7.03 Quarterly Sulfate (mgIL) 532 NS 538 531 503 512 540 532 537 541 Quarterly Manganese (ugIL) 200 NS NA 248 NS NA 369 NS NA NS NA 348 267 270 Quarterly MW-35 (Class Thallium (ug/I) 0.5 NS NA <0.50 NS NA <0.50 NS NA NS NA NS 0.52 NS Quarterly Gross Alpha minus Rn & 2115111 61712011 7/20111 8/212011 917111 II) U (pCiIL) 3.75 NS NA 2.6 NS NA 3.7 NS NA NS NA NS 4.5 NS Quarterly Uranium (ug/L) 7.5 NS NA 12.7 NS NA 21.7 NS NA NS NA 24.2 18.3 22.3 Quarterly R (\!quire dS A eml-miua IS ampl n~ .. ~ u Wcl~ MW-2 (Class III) Gross Alpha minus Rn & 3.2 NS NA 1.1 NS NA 4112/2011 1.2 NS NA NS NA NS NA 8/8/2011 0.5 NS NA Semi-Annually U (pCilL) MW-3 (Class III) Selenium (uglL) 37 NS NA 40.5 NS NA 45.4 NS NA NS NA NS NA 46 NS NA Semi-Annually Field pH (S:U.) 6.5 -8.5 NS NA 2/15/11 6.09 NS NA 4/13/2011 6.46 NS NA NS NA NS NA 811012011 6.32 NS NA Semi -Annually Fluoride (MgIL) 0.68 NS NA 0.69 NS NA 0.68 NS NA NS NA NS NA 0.96 NS NA Semi-Annually MW-3A (Class Field pH (S.U.) 6.5 -8.5 NS NA 6.05 NS NA 6.58 NS NA NS NA NS NA 6.19 NS NA Semi-Annually Sulfate (mg/L) 3640 NS NA 3730 NS NA 3350 NS NA NS NA NS NA 3560 NS NA Semi-Annually III) TDS (mg/L) 5805 NS NA 2116111 5770 NS 411312011 811112011 NA 5720 NS NA NS NA NS NA 5810 NS NA Semi-Annually Selenium (ug/L) 89 NS NA 99 NS NA 85.8 NS NA NS NA NS NA 88.5 NS NA Semi -Annually MW-5 (Class II) Uranium (ug/L) 7.5 NS NA 211411 I 29.5 NS NA 4112/2011 7.16 NS NA NS NA NS NA 8/9/2011 0.5 NS NA Semi-Annually MW-12 (Class Field pH (S.U.) 6.5 . 8.5 NS NA 2115111 6.43 NS NA 4/512011 6.67 NS NA NS NA NS NA 6.13 NS NA Semi-Annually III) Selenium (ugll) 8/9/2011 25 NS NA 39 NS NA 21.7 NS NA NS NA NS NA 25.4 NS NA Semi-Annually Thallium (ug/I) 1.95 NS NA 3.49 NS NA 3.74 NS NA NS NA NS NA 4.0 3.39 NS NA Semi-Annually MW-18 (Class Sulfate (mgll) 1938.9 NS NA 1770 NS NA 1780 NS NA NS NA NS NA 811012011 1910 NS NA Semi-Annuallv III) 2/15111 4/6/2011 9121111 Field pH (S.U.) 6.25-8.5 NS NA 6.27 NS NA 6.71 NS NA NS NA NS NA 5.95 NS NA Semi-Annually (6.30) TDS (mgIL) 3198.77 NS NA 3250 NS NA 3250 NS NA NS NA NS NA 3190 NS NA Semi-Annually Monitoring Well Constituent Exceeding GWCLin (Water Class) GWCL Current GWDP MW -19 (Class 1Il) Field pH (S.U.) 6.78-8.5 MW-23 (Class Field pH (S.U.) 6.5 -8.5 III) MW-24 (Class Cadmium (ug/L) 2.5 III) Thallium (ugIL) I Field pH (S.U.) 6.5 -8.5 Nitrate + Nitrite (as N) 5.6 (ml!.lL) MW-27 (Class Chloride (mgfL) 38 Sulfate (m.l\l'l.) 462 III) Field pH (S.U.) 6.5-8.5 TDS (mg/L) 1075 Gross Alpha minus Rn & 2 U (oCi/L) MW-28 (Class Chloride (mgIL) 105 III) Field pH (S.U.) 6.1 -8.5 MW-29 (Class Iron (ug/L) 1869 III) Field pH (S.U.) 6.46 -8.5 Gross Alpha minus Rn & 3.33 MW-32 (Class U (pCi/L) III) Field pH (S.U.) 6.4 -8.5 Notes: GWCL values are taken from July 14,2011 version ofGWOP. NS = Not Required and Not Sampled NR = Required and Not Reported NA = Not Applicable Exceedances are shown in yellow January January 2011 2011 Monthly Monthly Sample Sample Date Result NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA Values in 0 parentheses are the field pH measurements for the resampled analyses. Ql 2011 Results March 2011 Q120ll Q12011 Monthly March 2011 Sample Result Sample Monthly Date Result Date 212112011 6.78 NS NA 2/9/2011 6.13 NS NA 2.78 NS NA 2/10/2011 1.42 NS NA 5.73 NS NA 6 NS NA 46 NS NA 455 NS NA 2/9/2011 6.71 NS NA 1090 NS NA 0.7 NS NA 2114/2011 114 NS NA 5.69 NS NA NS NA NS NA NS NA NS NA 1.5 NS NA 2/912011 5.99 NS NA Q2 2011 Results Q3 2011 Results May 2011 June 2011 September Q220ll Q220ll Monthly May 2011 Monthly June 2011 July 2011 July 2011 Q32011 Q32011 2011 September Sample Result Sample Monthly Sample Monthly Monthly Sample Monthly Result Sample Result Monthly 2011 Monthly Sample Frequency Date Result Result Date Date Result Date Date Sample Date Required Scmi-Annual Samplillg WeIL~. conlinued 415/2011 7.03 NS NA NS NA NS NA 7/20/3011 6.65 NS NA Semi-Annually 4/512011 7.14 NS NA NS NA NS NA 8/412011 6.38 NS NA Semi-Annually 2.61 NS NA NS NA NS NA 1.46 NS NA SemI-Annually 41512011 1.07 NS NA NS NA NS NA 8/4/2011 NO NS NA Semi-Annunlly 6.12 NS NA NS NA NS NA 6.45 NS NA Semi-Annually 6.4 NS NA NS NA NS NA 6 NS NA Semi-Annually 43 NS NA NS NA NS NA 43 NS NA Semi-Annually 442 NS NA NS NA NS NA 424 NS NA Semi-Annually 4/512011 6.79 NA NS NA 8/8/2011 6.39 NS NA Semi-Annually NS NA NS 1190 NS NA NS NA NS NA 1090 NS NA Semi-Annually 1.1 NS NA NS NA NS NA 0.8 NS NA Semi-Annually 109 NS NA NS NA NS NA 8/8/2011 105 NS NA Semi-Annually 411112011 5.78 NS NA Semi -Anllually 6.01 NS NA NS NA NS NA 3010 NS NA NS NA NS NA 8/9/2011 1080 NS NA Semi-Annually 4/1812011 NS NA Semi-Annually 6.45 NS NA NS NA NS NA 6.20 4.6 NS NA NS NA NS NA 1.9 NS NA Semi-Annually 8/2/2011 4/112011 8/30111 6.10 6.14 NS NA NS NA NS NA (6.20) NS NA Semi-Annually INDEX OF TABS Tab A Site Plan and Perched Well Locations White Mesa Site Tab B Field Data Worksheets Quarterly Sampling Tab C Field Data Worksheets Accelerated Monitoring Tab C1 Field Data Worksheets Accelerated Monitoring, July 2011 Tab C2 Field Data Worksheets Accelerated Monitoring, September 2011 Tab D Quarterly Depth to Water Tab E Laboratory Analytical Reports -Quarterly Sampling Tab F Laboratory Analytical Reports -Accelerated Monitoring Tab Fl Laboratory Analytical Reports -Accelerated Monitoring, July 2011 Tab F2 Laboratory Analytical Reports -Accelerated Monitoring, September 2011 Tab G Quality Assurance and Data Validation Tables G-lAIB G-2AIB G-3AIB G-4AIB G-5AIB G-6AIB G-7AIB G-8 AlB G-9AIB Field Data QAJQC Evaluation Holding Time Evaluation Laboratory Temperature Check Analytical Method Check Reporting Limit Evaluation Trip Blank Evaluation QAlQC Evaluation for Sample Duplicates Radiologics Counting Error Laboratory Matrix QC Tab H Kriged Current Quarterly Groundwater Contour Map and Depth Data Tab I Groundwater Time Concentration Plots Tab J CSV Transmittal Letter Tab A Site Plan and Perched Well Locations White Mesa Site PROPERTY ~ TWN-11 J J_ 10 ( /OUNDARY ~ . ~~I \~ )OJ ( '" 1\ I \ 111 II TW~-15 (:""I.. J / A...l _ '---'--IJ ./1 ~ /," MW-01 ~ I. TWN-10 ~ ~ ~ TW~ MW-18 ~ II • TWN-6 PIEZ-1 ~ g r' ~_ "\.J tic ~I II II ~5 TW~N-a MW-19 f ~~( ~~'1 ~. " II ~ TWN-18 ~ -I( TWN.', ~ TW~3 I PI~Z-2 CELL NO.1 ~ N-4 PI EZ-3 " TWN-14 I'" J = ITW4~~W4::nJ ij ~ :J :z--I-C~~--r~====~~:;;;-~MW~.~211;;;;;;~;;~~~~IJ;~28 O~W4'20 cP0::~~ 7 , .26 TW4-' 3 OTW4-12 ' 0 OTW4- MW-02 • a MW-20 • TW4-19 7 -::/ 4 )I II 11 II 1 ~II 11 11 II II II II 32 II II \1 II II II II II 11 II I • M~-21 II II II \\ ~ ~ N ~ ~ '~ l SCALE IN FEET EXPLANATION perched monitoring well o temporary perched monitoring well PI~Z-l perched piezometer TWN-1 ~ MW-34 -<>- MW-36 ~ temporary perched nitrate monitoring well perched monitoring well installed August/September, 2010 perched monitoring well installed April, 2011 MW-B5 -¢-I MW-~ b MW~3 ____ MW-34 M~- -¢--¢---J:t-• MW-03 • MW-20 • MW-37 CELL NO.2 MW-17 • 33 OTW4-1EbTW4-11 OTW4-13 TW4-7$i-a OTW4-1 OTW4-40TW4_14 TW4-23 OTW4-6 o OTW4-26 PIEZ-4 ~.::=:-=--==~~-== g ./ d' PIEZ-5 " T37S T38S ./ .;::' ., .............. ~ ~ ~ ~--",----=---~ --"-h""===== 4_==__ Ii ~~~ --~~~~--# --~7/ 3000 wildlife pond HYDRO GEO CHEM, INC. APPROVED SJS MW-22 • II // // // // // // // // // // SITE PLAN AND PERCHED WELL LOCATIONS WHITE MESA SITE DATE REFERENCE H :/718000/nov11 Iwelloc11.srf ~ ~ FIGURE A-1 ) ~ ., TabB Field Data Worksheets Quarterly Sampling Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring quality Assuran~e Plan (QAP) OENISO,})~ ~ WHITE MESA URANIUM MILL ~ ATTACHMENT 1 Attachment 1 See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I '3,./11 Q\.ACA.(f~r GrounJl W",,-=t'~r ;:J.O 11 Sampler Name and initials: ~ntl~,... He 1 ),'J,,~ /f H Location (well name):I'-_M_w_-_;t _________ ---' Date and Time for Purgingj ~/ ~I a..O J ) and Sampling (if different) Well Purging Equip Used: []I] pump or@] bailer Well Pump (if other than Bennet) o~o Sampling Event I QlAo.rh:I"G (,.-W Prevo Well Sampled in Sampling Event LI_M_W_-2_8 ____ --.1 pH Buffer 7.0 7.D Specific ConductanceLI _~....:...~.:....4..L.-__ ---.JI/-tMHOS/ cm Depth to Water Before Purginm I Oq. 'll) Conductance (avg) pH Buffer 4.0 ! L\.D Well Depth(O.Olft): ! \.?JS .go Casing Volume (V) pH of Water (avg) 4" well:1 \~.3q 1(·653h) 3" Well: D (.367h) L.....--=-_----I Co.70 Well Water Temp. (avg) I \6 -S~ I Redox Potential (Eh)! 37::J... TurbiditylL..=o __ ---' Weather Condo Ext" Amb. Temp. O( (prior sampling event)! ~o Time 1l3~ I Gal. Purged I 2.Y. ~ I Time 113.?6 I Gal. Purged 1;2.5_17 I Conductance 1 'J..~9 ':> I pH If,·bb I Conductance 1 2~::tJ I pH I b .b~ I Temp. DC IIG.98 I Temp. DC I1 h ·5) I Redox Potential Eh (mV) 1'371:. I Redox Potential Eh (mV) I '375 I Turbidity (NTU) I 0 I Turbidity (NTU) I 0 J Time I 13;2.7 I Gal. Purged I ?:S.36 I Time Il;3.9.,g I Gal. Purged I 25 ,b is I Conductance 1:2.5'1 15 I pH 110 .'";[5 I Conductance 1;;2..5~g I pH Ib.7J I Temp. DC II b.qq I Temp.oC I I G.bl I Redox PotentialEh (mV) 1370 I Redox Potential Eh (mV) 13b& I Turbidity (NTU) I 0 I Turbidity (NTU) I D I White Mesa Mill "Field Data Worksheet for Groundwate"r 1 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I :2~ .DY Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = I . / . .)1 gallon(s) Time to evacuate two ca ing volumes (2V) T=2V/Q= I 113.iQ I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab~L-_tJ_I_I.\ _______ ...J Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y VOCs 0 0 3x40 ml 0 0 HCL 0 Nutrients 0 0 100ml 0 0 H2SO4 0 Heavy Metals 0 0 250ml 0 0 HN03 0 All Other Non Radiologies 0 0 250ml 0 0 No Preserv. 0 Gross Alpha BI 0 1,000 ml ijJ 0 HN03 ~ Other (specify) 0 0 Sample volume 0 0 0 If preservative is used, specify Type and Quantity of Preservati ve: See instruction Comment Arr'.vc?J. on s,;+<. 0..+ )/d-I. lo...t"l(lGr CN"\~ &o.(r;n f're.s~(\-t ~r pv...("~e tAnJ. 5C."'pJ;.:j -t.J~t1t. p",(~" be~~ 6\~ 1130. PIA("~c~ \,.)ell .tor", }cJp\1 of' 12D M;t1lA+cS. Wc.}(',-Was C.)-e~y +hro"':f 0lAf +he.. pv.r~c. Pv..r~~ e,.~c:J. ~"A .so..mp\.:: \.0C1.S ~oll('{.t('~ ~J' )336. D~p}~ d-o ~o-.hr d>vf}."r' p~M·~(' ~G..:' \I~. S \.. L.en S~}(. "'.} 133b. '-________ ...Jloo not touch this cell (SheetName) White Me.~a Mill Field Data Worksheet for Groundwater N 0 0 0 0 0 0 2 6f2 Mill· Groundwater Discharge Permit Date: 03/22/2010 Rev. E Groundwater Monitoring Quality Assurance Plan (QAP) I ATTACHMENT 1 OENISONr:JJ ~ WHITE MESA URANIUM MILL Attachment 1 :J See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 13,6\ Qv.u..rter (,-rO\A"c! w~+~(' ~() II Sampler Name Location (well name):L-I_fV._w_ • .-,;.3:.....-________ --I and initials: I ~"MI" Noll,' ~ '\j /I H Date and Time for PUl·gingj,--=~;,,;,./..;..;J D:;..;,/_::2._o.-,;" ____ .....J Well Purging Equip Used: [][]pump o@ bailer Sampling Event I Q",(}..rt<ri::1 Cry.) pH Buffer 7.0 7.0 Specific Conductance .... 1 _9,;,...~:....;' ___ --'If.tMHOS/ cm Depth to Water Before PurgingJ ~.;)..3 Conductance (avg) and Sampling (if different) Well Pump (if other than Bennet) Prevo Well Sampled in Sampling Event I f\II W -3 A pH Buffer 4.0 Y.D Well Depth(O.Olft): 1 ~7.o0 Casing Volume (V) pH of Water (avg) 4" Well:~(.653h) 3" Well:~(.367h) Well Water Temp. (avg) Redox Potential (Eh) 11.-__ ----1 TurbiditYI-I ___ --' Weather Condo Ext'l Amb. Temp. ·C (prior sampling event)1 :;'0'" Time IOGl 4.5 I Gal. Purged 1l1 . 98' . I Time 1 c>~Yc. I Gal. Purged 11 0 1 ~1 I !D.LI' Conductance I sg~8 I pH 1 b ·3& I I Sg'3~ )0 ·'3 I Conductance I pH 1 (,3l.{ Temp.oC I I~.bg I Temp.oC 1 15 .77 I Redox Potential Eh (mV) I LQ..7 I Redox Potential Eh (mV) I L.j~ I Turbidity (NTU) I 0 I Turbidity (NTU) I u I Time IOql-\l I Gal. Purged 1 ! c) '4 i) • I Time I Oq~8 I G 1 Pu d 11(1 ! n a . rge I ., , '<0 ,J • I 10.gs Il.Ob Conductance l .sg3i1 I pH 1 b ·3.3 I Conductance ISB.2t:f I pHI "3a I Temp.oC I IS .[g I Temp.oC I If) .80 I Redox Potential Eh (mV) I Y 1$ I Redox Potential Eh (mV) I 407 I Turbidity (NTU) I 0 I Turbidity (NTU) I 0 I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I' i o;.~ , I' .50 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 1-1 _. :2._1--'7 __ ---' gallan(s) Time to evacuate two ca ing volumes (2V) T=2V/Q= I Y{,.61 I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab~L-.:....M-,-¥A:":""-______ -1 Sample Taken Sample Vol (indicate Filtered Preservati ve Preservative Type of Sample if other than as Added y N specified below) y N Type y VOCs 0 0 3x40 ml 0 0 HCL 0 Nutrients 0 0 100m! 0 0 H2SO4 0 Heavy Metals DI 0 250m! lB 0 RN03 ~ All Other Non Radiologies 0 0 250m! 0 0 No Preserv. 0 Gross Alpha 0 0 1,000 m! 0 0 RN03 0 Other (specify) [] 0 Sample volume 0 ~ 0 Fl o",r i J "( If preservative is used, specify Type and Quantity of Preservative: Comment ~ See instruction A{,(:\le~ on !,i1( 6..+ o8o"_"~I\r'lt:r /Ji11" G-lA.r";(I y(t"..st.r1T-.for plA~-C: 4t1~ ~~Mpl ;0 evC!,.,f. Ptll~~ .bzjtt1J ,,1-ogS7. ?\A"~cJ. vlc.1\ far c.-.-tor&!1 of 53 1"'11'(\~t~. ~~~((' w~ G1t:r.,. .... +hfOv.+ov....-t t"-.c l\.A"j~ f u.('~-t. -ChcAt~ "'''~ ~ft.tfl P \0 \.o:l~(~ (.o"edc~ li\.+ oq!)O. De~'h 10 wv..-h/ ~C!" F?Jt. y.)O-~ '67.11 Lc:..A-si-tc. c;...~ O%b. L....-________ -JIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksh-eet for Groundwater N 0 0 0 0 0 III 2 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) I ATTACHMENT! OENISOt!)~ ~ WHITE MESA URANIUM MILL MINES FIELD DATA WORKSHEET FOR GROUND WATER Attachment 1 I See instruction --- Description of Sampling Event: I 3 rdi Q\I\t\rT<:.r GOrO\Af\J W,,+u· ;2.011 Location (well name): .... 1 _M_W_-_'3_A _________ ---I Sampler Name and initials: I-y;,."n-e r t}o II:J~/TH- Date and Time for Purgin~I-_~J_'_O.:..../~_()_II ____ _' and Sampling (if different) .... 1 g...,;./_'_II._a_o_,_, ____ -....I Well Purging Equip Used: [][I pump o@ bailer Well Pump (if other than Bennet) Sampling Event I G~Q..f+.vB &w ! MW -1.8 Prevo Well Sampled in Sampling Event '-_______ ---' pH Buffer 7.0 pH Buffer 4.0 l1.0 Specific Conductance 1~_l1:....:q-,j ___ ....I1 ~MHOS/ cm Well Depth(O.Olft): IL......-.::qs=-:._O_O __ -J Depth to Water Before Purgind $5.37 Casing Volume (V) 4" well:! b,:;z.g !(.653h) 3" Well: 0 (.367h) '----_ ..... Conductance (avg) pH of Water (avg) Well Water Temp. (avg) I 17. o~ Redox Potential (Eh)1-1 Y...:;5;;;.;g~_-J Turbid ity ,-I ..,;:;,O __ ---..J Weather Condo Ext'l Amb. Temp. O( (prior sampling event)1 19 b Time IDgSO I Gal. Purged I ~. ~ I Time I I Gal. Purged I I Conductance I blg9 I pHI b .19 I Conductance I I pH I I Temp. DC 1 17.D4 I Temp. DC I I Redox Potential Eh (mV) I '-\5~ 1 Redox Potential Eh (mV) I I Turbidity (NTU) I 0 I Turbidity (NTU) I I Time I I Gal. Purged I I Time I I Gal. Purged I I Conductance I I pHI I Conductance I I pH I I Temp. DC I I Temp. DC I I Redox Potential Eh (mV) I I Redox Potential Eh (m V) I I Turbidity (NTU) I I Turbidity (NTU) I I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged .... 1 q_ . .;.....3 _k> ___ ---' gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 1 . :log Time to evacuate two cas ing volumes (2V) T = 2V/Q = I ~.L{" I Number of casing volumes evacuated (if other than two) 1 1.'45 If well evacuated to dryness, number of gallons evacuated 1 '1 .36 Name of Certified Analytical Laboratory if Other Than Energy Lab~ .... ....;;.,v.-.!.VA.!....-______ -, Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) y N Type y VOCs 0 0 3x40 ml 0 0 HCL 0 Nutrients 0 0 100ml 0 0 H2SO4 0 Heavy Metals ~ 0 250ml ~ 0 HN03 iii All Other Non Radiologics 0 0 250ml 0 0 No Preserv. 0 Gross Alpha 0 0 1,000 ml 0 0 HN03 0 Other (specify) rn 0 Sample volume 0 ijJ 0 SvJ-to-+< If preservative is used, specify Type and Quantity of JD~ Preservative: Comment [: See instruction Aff'ivd. on Si+~ ~+ ogl>~. -rtA-nl'let' ~bll:J~ MA G-c.rr"(\ pf'e5.c:n-t -h>r ~u.~e.. IIlllrA 5,o.lV1fl i ~ e\)~n+' 'Pv.I"~e be~o..1\ 1>.1-OKlO. f~I"~~ lo.)-ell ~(" .... +ot-cd or 45 l'trw.fes. fu.("~~ \.)01/ d~. """'+t'f' Wt;;1 cJ<~,.. +),('O~~hO""'+ f~~(.. Pw~"< efltle~ 6..+ 08~, L-c~~ S;-\( o-i o'tSb, ArfllJtP. 01'1 ~:+e + O'1~-' l ' t I + 1 ' I I L q., .Jo(.. "'-;'1\I'\Gt' ~(l0\ &6..rr·Y'\ prc5.cFI 70 t:Dlle(. S~rv1p~. DCJ~T"I III W~-r~r ~""'plc:..s. \...:)<tfc. {,()Iled-e~ ",-1-0135. Left-site o.t 0-,1..\ ~ "--________ -JIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 0 0 1511 2 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) J)ENISOn~ ~ WHITE MESA URANIUM MILL I ~ ATTACHMENT 1 Attachment 1 See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 1'3"~ Q~o..;tU' &f'ou.I\J wlII.fc(" ;2.011 Location (well name): .... 1 _M.-,-w_-5-'--_________ --' Sampler Name and initials: f1!-ntlu Holl '~I1~/-r/t Date and Time for PurgingJ'-~....;J_'l_1 fJ._O_lJ ____ --I and Sampling (if different) ,-I N=:,../.:..:..A ______ -l Well Purging Equip Used: [!!Jpump o@ bailer Well Pump (if other than Bennet) .... I_Q--'-~_O ____ ___ Sampling Event I Q'-'(l.rful~ &~ Prevo Well Sampled in Sampling Event .... I_M_'W_-:L_'f _____ --' pH Buffer 7.0 '1.0 Specific ConductanceL-I_~..:....~:....~ ___ ___II!lMHOS/ cm Depth to Water Before Purgin~ ,0 b. \ 0 Conductance (avg) pH Buffer 4.0 9·0 Well Depth(O.Olft): 113g .SO Casing Volume (V) 4" well:1 ;2.1.15 1(.653h) 3" Well:l-. ....:::.O __ --J. (.367h) pH of Water (avg) '-1....;..1-"~~'_=_ _____ ..... Well Water Temp. (avg) I \5. ql Redox Potential (Eh)lI-...;...14_' __ -l Turbidity 1 J 0.0 Weather Condo Time II lOt> I Conductance 1 ~81S'" Temp. DC 115. g'1 Redox Potential Eh (mV) 1 Turbidity (NTU) 1 Time 1110:;2.. 1 Conductance 1 :2.. ~O k:. Temp. DC I IS·Q3 Redox Potential Eh (mV) 1 Turbidity (NTU) I White Mesa Mill Field Data Worksheet for Groundwater Gal. Purged I ti~.31 I I pH 1 7.~q I 1 lCJ9 1 15 ., 1 Gal. Purged 1 l.) '6. "1 '-l 1 1 pH 17-29 1 1 191 1 10.1 1 Ext'l Amb. Temp. O( (prior sampling event)1 )~6 Time 0..;..111_0_' __ ..... Gal. Purged I ~~.53 Conductance Temp. DC l .2.q()~ I t5.en Redox Potential Eh (m V) 1-1 I;....:Y'-:l __ --' Turbidity (NTU) 11°·0 1 Time L....:11_1.-..;;03 __ ..... Gal. Purged I y;?,. q6 Conductance 11-2_2f..:.....o....;I_--J pH 17.Z<\ Temp. DC 115.'1 ) Redox Potential Eh (mV) II-);"":Y_V __ ....J Turbidity (NTU) I 10 ./ 1 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged ..... 1 _L\..:..:3"-._~ ___ ..... gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. Time to evacuate two ca ing volumes (2V) S/60 = 1 • ')..17 T = 2V IQ = 1 1'\ 4. '14 I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab~L.._rJ_/..;..At--______ -J Sample Taken Sample Vol (indicate Filtered Preservati ve Preservative Type of Sample if other than as Added y N specified below) y N Type y VOCs 0 0 3x40 rnl 0 0 HCL 0 Nutrients 0 0 100 rnl 0 0 H2SO4 0 Hea vy Metals 'IE 0 250 rnl m 0 HN03 ~ All Other Non Radiologies 0 0 250 rnl 0 0 No Preserv. 0 Gross Alpha 0 0 1,000 rnl 0 0 HN03 0 Other (specify) 0 0 Sample volume 0 0 0 If preservative is used, specify Type and Quantity of Preservative: See instruction Comment ArrioJed. en sii-~ At D1\.'~. 1"11,(11'181" O\(\~ &",rr:f) ?fe.s~fIf-+0(' FW~~ 0111'-\ SC4.Mfr:J ~\len+' PW5~ ~0If'\ Q-..t 0,\,.15. ?"'r~('cl U)~1i fOf 0-. +0+,,1 of ~oo t'Vlirl(f.'h:s. Wtt..+t(' Wr.J /I'Ios.t~ c.JeQf'" +~"'d"'~hOV\j- flAf~-<'. P~r()e. c.r'J~etX o.,,~ .)o..l"I'lpk ~tAS t..ollec1etA tAJ 1105. D~p+h +0 w~+-{r ~+h(" P"'(~< Wlk~ )g.Y·Y() Left si1( ",1 1107, L-________ ...... IDo not touch this cell (SheetName) White Mesa Mill Field Dafa Worksheet for Groundwater N 0 0 0 0 0 0 2 of; Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) I ATTACHMENT 1 ~ OENISOJ)~ ~ I WHITE MESA URANruM MILL Attachment 1 [-See instruction MINES ,FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I 3 r~ Q"'<Aif~r &iOlA(\J\ W0I.4cr ;tO il Location (well name): ..... 1 ....;..M_W_-_l_I _________ --I Sampler Name and initials: tt;flne r tJo/l,J~Ji~ Date and Time for Purgin~, ...... 8_/_3....;./_~_O_I_I ____ __' and Sampling (if different) Al/A '--~------~ Well Purging Equip Used: [IDpump o@ bailer pH Buffer 7.0 I 7· 0 '---------' Specific Conductance ..... l_q_~....;..~ ___ ___'I!!MHOS/ cm Depth to Water Before Purgingj gK '15 Conductance (avg) 1-1 .:;..:;L...;,,9...:....Y--'--'-1 ____ ---I Well Pump (if other than Bennet) ..... 1 _Q_E_D ____ __' Prevo Well Sampled in Sampling Event ..... 1 M_W_-_3_5 ____ ----J pH Buffer 4.0 L\.D Well Depth(O.Olft): 1 \30.00 Casing Volume (V) 4" Well:~(.653h) 3" Well:~(.367h) pH of Water (avg) 1-1 ..;,,7_.~_' _____ ..... Well Water Temp. (avg) I IS.57 Redox Potential (Eh)I-II....;,I.;",.3 __ ..... Turbidity I J". g, Weather Condo Ext'l Amb. Temp .• ( (prior sampling event)1 17D Time I \O;LO I Gal. Purged 1 $3. \f> I Time I lo;lJ I Gal. Purged I .53.'3g I Conductance l ;t..j S\ I pH l i.2g I Conductance l;Ltly:J.. I pH 1,.2b I Temp. DC I \15.54 I Temp. DC I 1S . .sg 1 Redox Potential Eh (mV) I \'~ I Redox Potential Eh (mV) I 113 1 Turbidity (NTU) 1 lb.l 1 Turbidity (NTU) I \b·5 I Time l)oXL I Gal. Purged I S'3>. S9 I Time 110.;2.J 1 Gal. Purged 1 S 3· f, , 1 Conductance 1 ;2..&\50 1 pH I7.% 1 Conductance 1 ~qY5 I pH 17.25 1 Temp. DC I lS .$S 1 Temp. DC 1 IS.SG{ I Redox Potential Eh (mV) I 113 1 Redox Potential Eh (mV) 1 1 1~ 1 Turbidity (NTU) 1 1l:.'3 1 Turbidity (NTU) I lb.\ 1 White Mesa Mill -Field Data Worksheet for Groundwater 1 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAPj Volume of Water Purged I 5L\.?-S Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = L-.1,_;l_17 __ ----' gallon(s) Time to evacuate two easing volumes (2V) T = 2V/Q = P;Yl.05 I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab~,A WA L I Se.t or -V OGS Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as y N specified below) VOCs ~ 0 3x40 rnl Nutrients 119 0 100 rnl Heavy Metals ~ 0 250m! All Other Non Radiologies ~ 0 250ml Gross Alpha ID 0 1,000 rnl Other (specify) 'IE 0 Sample volume G-d'~("o-' Inof".jO\r'\" G~ Comment Y N 0 ~ 0 ~ 'fJ 0 0 ~ 'fl 0 0 ~ Added Type y HCL 111 H2SO4 [] HN03 -£J NoPreserv. 0 HN03 "1J 0 If preservative is used, specify Type and Quantity of Preservati ve: Ir -, See instruction 'Yi Arrive?A on ~i4-e ~-t Ob\O.-rM~r (}."A &(A{(:'" pr~Jt:,,-t for pIA'S a.(I~ SIAMpJ;3 e\lel1t. Fu.r~c. bej"'A ,,+ oblS . Pv..r~ea \j.)ell .for" fA.. +ott..\ of .lSO M:n",+c..5. vJc...+a ~~ c.I-e.o.r +hrOv,~hOu.t-the, pv.('~e . Pur~e endeJ M~ .5Cft?1p)(,s ~cr( C61le~J d\t 10:25 . D ep1-h 10 vsod-'Gr v--B-~r pv.(Jc v!)ct~ 84,0 J left-~i+-c 0.+ l03.b L...-_______ -....JIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 fil 0 tJ 2 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) OENISONf)~ ~ WHITE MESA URANIUM MILL I ATTACHMENT 1 Attachment 1 [~ See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 13r d\ G v..a.rft-r Grou..r.i( \I5~+C .... ;2.011 Location (well name):I-1 _M_\f\)_-_l~ _________ ----, Sampler Name and initials: 4'""tH1U H .,IJ,J~ /,u Date and Time for PurgindL-~_/ l._!:J.J:)_'_I ____ -' and Sampling (if different) ,-I g~J:.....".u/....:..~--......;..I _l ___ --' Well Purging Equip Used: [IDpump o@ bailer Well Pump (if other than Bennet) Sampling Event I Qv..().('h.(~ GOw I Mw-~ Prevo Well Sampled in Sampling Event 1-_______ --' pH Buffer 7.0 7.0 pH Buffer 4.0 Specific Conductancel'---q_'l_q ___ -'hlMHOS/ cm Well Depth(O.Olft): 1130.L IO Depth to Water Before Purgin~ log .50 Casing Volume (V) 4" well:1 14.30 1(.653h) 3" Well: D (.367h) 1-.._---' Conductance (avg) L-1_L\_I_5.5 ______ --' pH of Water (avg) 1:0.15 Well Water Temp. (avg) 1 Jb.bL.\ Redox Potential (Eh) 1 3bO TurbidjtylL-_' {,_'_' _---' Weather Condo Ext" Amb. Temp. O( (prior sampling event)' ~go Time 1 153D I Gal. Purged I ~.7 g I Time , , Gal. Purged 1 I Conductance I LIlES I pH' "'.13 I Conductance , I pH , I Temp.oC I It;Jbq I Temp.oC I I Redox Potential Eh (mV) I 3 b C> I Redox Potential Eh (mV) I I Turbidity (NTU) I lb . 1 I Turbidity (NTU) I J Time I I Gal. Purged I I Time I I Gal. Purged I I Conductance I I pHI I Conductance I I pH I I Temp.oC I I Temp.oC I I Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I Turbidity (NTU) I I Turbidity (NTU) I I White Mesa Mill Field Data Worksheet for Groundwater . . 1 of Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1 ;2..~.()1..j Pumping Rate Calculation Flow Rate (0), in gpm. S/60= I ·.:l17 gallon(s) Time to evacuate two ca ing volumes (2V) T=2V/Q= I I?>uW I Number of casing volumes evacuated (if other than two) 11. [5;;( If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab~I-;,...ft/.~:lA~ ______ ----I Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve Type of Sample if other than as Added y N specified below) Y N Type y N VOCs 0 0 3x40 mI 0 0 HCL 0 0 Nutrients 0 0 100mI 0 0 H2SO4 0 0 Heavy Metals Li 0 250ml r& 0 HN03 [!I 0 All Other Non Radiologies 0 0 250ml 0 0 No Preserv. 0 0 Gross Alpha 0 0 1,000 ml 0 0 HN03 0 0 Other (specify) 0 0 Sample volume 0 0 0 0 If preservative is used, specify Type and Quantity of Preserv ati ve: See instruction Comment Af(:\lc::A 0" Site <1+ 13 '1~. "'-~MU HOI\;~"l?('e.sel1t ~o(' ?v-r~ c:. 41l~ ~Cl"'p);fI~ -e\)~fJ+. 'P\A.(Il..G bCII.."If\ &>-.1-13\.\5. IH J()f WI ' n '- \.J ...) -) ""f\"" l-~ '1 lOw f(ATe. aGGrGIAs.c~ so -.::r: 1-ook '" .sc.} or PQ..(Ct.rne-ter.s. 'F ",,('~e~ v.)e.1I .tor ~ -rat",\ o-F l~~ 1V1:()IA+e!:.., ft .. (~ed Uld) ar~'. WfAtu h~~ t-'o.. ~ l~\"i ~~~o1o(. r W"~~ cr\tk~ "J IS '45. Le~ 6,:+( ~} \~'-\7. A((·;\Je6. On ~i+(" ~;tc: .... + ol~"'.l" .... "nec ~n6.. &/HI":t\ pres.er'lt·h c:.olle.d-.sp,mp}e~. Depth -h w~tcr o,,!ll'/l.~ 113.0\ S"'~plt'.s we« c.ol)~dc:c:l4.f 0735. L'C!'+t-,5;+c..,l 0737. '--________ ....JIDo not touch this cell (SheetName) White Mesa Mill _ Field Data WorKsheet for Groundwater 2 ~f2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Attachment 1 [-J See instruction I I ATTACHMENT 1 OENISOn.J. .J.I WHITE MESA URANIUM MILL MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: j3 i"Di Q""o...({.er G.,...ou,l"la Gjo.:te r :Xo) / Location (well name):1-1 ...;,M_W_-.-,;l.-,;'-i _________ --J Sampler Name and initials: I-r;.""er HolI;J~~/TI-l Date and Time for PlIrgingJL-.g....;7....;3.;;..;/;....;;~_O_'I ____ __' and Sampling (if different) ..... 1.M_v,_'A ______ --' Well Purging Equip Used:llJ Ipump o@ bailer Well Pump (if other than Bennet) Sampling Event IO u '" ('f~ r lj 6-v.) 1 M \JJ-;Lb Prevo Well Sampled in Sampling Event I-_______ ----J pH Buffer 7.0 pH Buffer 4.0 Specific ConductanceI-I ....:.q....:.q....:.~ ___ ---II/!MHOS/ cm Well Depth(O.Olft): 1 \;2...8-70 Depth to Water Before Purgind \ 04 _oy Casing Volume (V) 4" well:I I{;.IO 1(·653h) 3" Well: 0 (.367h) '-------' Conductance (avg) 1-1 =...2:=-q:....;7:.,:3:::....-____ ----I pH of Water (avg) Well Water Temp. (avg) I I L.ol Redox Potential (Eh) 1 ..... {)_"'_;5 __ --' TurbiditylL...° ___ __' Weather Condo Ext'l Amb. Temp. °C (prior sampling eventll.,?5° Time I J53D I Gal. Purged 13 L % I Time 113:3' I Gal. Purged 131. {,8' I Conductance 1 '30~) I pH 1 b.;?,1 1 Conductance 13001 I pH Ib.;A 1 Temp.oC 1 Ik.53 1 Temp.oC 1 15 .Qg I Redox Potential Eh (mV) 1 9...19 1 Redox Potential Eh (mV) 12 (,4 I Turbidity (NTU) 1 Q I Turbidity (NTU) I 0 I Time 1 13:130 I Gal. Purged 1 31. iSS I Time 1 \333 I Gal. Purged 1 3~ ./ ) I Conductance 1 1.~1~ 1 pH 1 G.ll 1 Conductance 12.1l.J& I pH 1 ~ . .?3 1 Temp.oC 115 .&7 I Temp.oC 1 \5.13 I Redox Potential Eh (m V) 1 ;;tbJ I Redox Potential Eh (mV) IgSC1 I Turbidity (NTU) 1 0 I Turbidity (NTU) 1 Q I WtJite Mesa Mill Field Data Worksheet for Groundwater 1 Cif 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1 S~.SS gallan(s) Pumping Rate Calculation Flow Rate (Q) in gpm. S/60 = 1..-1 _. :;).._17-'--_---' Time to evacuate two casing volumes (2V) T=2V/Q= 1143.41 I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy LabiA ~ A L I ~ d' or "OG.s Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) y N Type y N VOCs W 0 3x40 mI 0 ~ HCL "El 0 Nutrients 1iJ 0 lOOmI 0 ~ H2SO4 is 0 Heavy Metals m 0 250mI ~ 0 HN03 ~ 0 All Other Non Radiologics IE 0 250mI 0 ~ No Preserv. 0 ~ Gross Alpha m 0 1,000 mI 1] 0 HN03 'E 0 Other (specify) ~ 0 Sample volume 0 E 0 ~ GC'flt.'ro..\ Tnorj~f\;C~ If preservative is used, specify Type and Quantity of Preservative: Comment I: J See instruction L-_______ ---'IDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) I OENISONI)~ ~ I ATTACHMENT 1 Attachment 1 WHITE MESA URANIUM MILL See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 13 r dl Qv..o..rttr &rou.n '" \.O",t~(" ;J...O II R~.s"'lY\flc, Location (well name ):1-1 --..,;.M--.,;W_-......;l....,:l.\ ________ ---I Sampler Name r-=.-----n--n""-+' ---,-.-.,.--__ -, and initials: tr;nne( Ho1J.J(J..Y/17-1 Date and Time for PUI'gin~ g/307~~ I Well Purging Equip Used: [ID pump o@ bailer Sampling Event IQv..~f+;1' b &Q pH Buffer 7.0 7.0 Specific Conductance ...... 1 _'1_~4 ___ ----,1 ""MHOS/ cm Depth to Water Before Purgingj 10'3 · gPl Conductance (avg) YDCS and Sampling (if different) ...... 1,./,_'/_"' ______ --' Well Pump (if other than Bennet) ...... 1 G_fE._p ____ ----' Prevo Well Sampled in Sampling Event I-I_M_W_-:&5 _____ ---' pH Buffer 4.0 L4 .0 Well Depth(O.Olft): 1 1.zz.70 Casing Volume (V) pH of Water (avg) 4" well:1 \ ".~q 1(·653h) 3" Well: ....... _O __ ......1.(.367h) Well Water Temp. (avg) 1~ . .5£" Redox Potential (Eh)IL-~_4S __ ---, Turbidity ...... l_o __ ---' Weather Condo Ext'l Amb. Temp. DC {prior sampling event)1 "46 Time I l~S I Gal. Purged I ~ ss I Time I '~~C::. I Gal. Purged 1 3~.1' I Conductance I '-\0 bc:' I pHI b.Y\ I Conductance I L\Ob~ I pH I t;;.y } I Temp.oC I ~S.b~ I Temp.oC I \S.b~ I Redox Potential Eh (m V) l:LOq't I Redox Potential Eh (mV) I2..YL.. I Turbidity (NTU) I 0 I Turbidity (NTU) I (:) I Time I l~:t"'" I Gal. Purged I 3?-..9 ~ I Time 1132-<6 I Gal. Purged I 'X!>.2..0 I Conductance I gObY I pH I b,ql I Conductance I YbbS I pH I b.LJ I I Temp.oC I P; •. :sq I Temp.oC I \S.Y D I Redox Potential Eh (m V) I ~Q q I Redox Potential Eh (mV) I ~I....l q I Turbidity (NTU) I 0 I Turbidity (NTU) I D I White Mesa Mill Field Data Worksheet for Groundwatei 1 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I 33. b3 Pumping Rate Calculation Flow Rate CQ) in gpm. S/60 = I ,;2..11 gallon(s) Time to evacuate two ca ing volumes (2V) T=2V/Q= I \tjQ .13 I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab~L.._~_/''-'~'--______ '"'' Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) y N Type y N VOCs 0 0 3x40 rnl 0 0 HCL 0 0 Nutrients ~ 0 100 rnl 0 ~ H2SO4 ~ 0 Heavy Metals m 0 250 rnl S 0 HN03 '29 0 All Other Non Radiologies 0 0 250 rnl 0 0 No Preserv. 0 0 Gross Alpha lSl 0 1,000 rnl !l 0 HN03 lJ 0 Other (specify) 0 0 Sample volume 0 0 0 0 If preservative is used, specify Type and Quantity of Preservative: Comment r:; See instruction Ar(;~eA on ..5.~i-c: 0..1 ,O'b,;2.. T~nl'\~r MtA CrtA((;f\ ?t"d<!"t1t -tbr r'\A~c. o..fI~ !''''rtlp];5 e~el1T. P\A.~~ ~O'-" 6\.+ l()~. f\ .... (8CCX Well ~or ().. +o-t~l 0+ lSS M:flV.·h:~. ~fI..+t:(' ~~ deo.' +\roU~holJ-1-?v.(~r P\Ar~c. cl1J-t.a Ikf\~ -S(At'FJplt0 were l:.o I1 Gt.+~J ~+ 133D. L~.r.} 5;+~ ,,J-\33S. O~+~ to Wo..tc(' c·StCf" f\Ar~~f IND.~ IOy.~, L..-________ ..... IDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 6f2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) ATTACHMENT 1 I OENISON'lJ ~ WHITE MESA URANIUM MILL Attachment 1 r-See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I ~((): Qv..().(+u (,rou,f\q., WCA.:rU" .a...O II Location (well name ):I~t'I...:...;w""--..J.I.w.S _________ ---, Sampler Name and initials: I -r;.nn~r ~oIFJ ~~frJ.l Date and Time for PurgingJL.,j8ou/"-I.I~Q.L./P..o_.:..:.1 ) ____ -J and Sampling (if different) L-:I N.~'/..r:.A ______ -I Well Purging Equip Used:~pump o@ bailer Sampling Event IQW}.ct cd!1 {,..\V pH Buffer 7.0 1·Q Specific ConductanceL-1 ....,J1 ...... 9-1-1 ___ --'IIlMHOSI cm Depth to Water Before Purgingj 7D.::ZS Conductance (avg) Well Pump (if other than Bennet) Prevo Well Sampled in Sampling Event I '-_M_v.:l_-_3_7 ____ -I pH Buffer 4.0 4.0 Well Depth(O.Olft): I 13lj.OD Casing Volume (V) pH of Water (avg) 4" well:1 41.,~ 1(·653h) 3" Well:L-. --=0'---_--'. (.367h) 5.t1.5 Well Water Temp. (avg) I Ib,3~ Redox Potential (Eh)IL-3_1l __ --' TurbiditYL-1 --=0 __ --' Weather Condo Ext" Amb. Temp. DC (prior sampling event)1 18b Time I ILl IS I Gal. Purged I 8.1 t...u, g3.S4 . I Time I )I-I It, I Gal. Purged I L\;). b 7 . 8 3 .7E; I Conductance I :)5~1 I pH I 'S.'"1£> I Conductance 1 3S7~ I pH I S.CC5 I Temp.oC I I ". ::S:X: 1 Temp.oC I H;.3S 1 Redox Potential Eh (m V) I "'!>?-7 1 Redox Potential Eh (mV) I '3 01 1 Turbidity (NTU) 1 0 1 Turbidity (NTU) I 0 I Time 11417 1 Gal. Purged 1 g:;; ~9 . I «3.Q1 Time I ,g I~ I Gal. Purged l Ie') ,I I 84 .1~ Conductance I 3500 I pH I S·qs I Conductance 1 ~5J:Z 1 pH I 5.'IS I Temp.oC I I b .:tK I Temp.oC I lh.'35 I Redox Potential Eh (mV) I Jo~ I Redox Potential Eh (mV) I '3 0A I Turbidity (NTU) I 0 I Turbidity (NTU) I 0 I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I gq. 63 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60= I ,~n gallon(s) Time to evacuate two casi ng volumes (2V) T = 2V/Q = I :)33· ", I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab~ ..... I"._:l._;tl _______ -, Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve Type of Sample if other than as Added y N specified below) Y N Type y VOCs 0 0 3x40 ml 0 0 HCL 0 Nutrients 0 0 100 rnl 0 0 H2SO4 0 Heavy Metals ~ 0 250 rnl ~ 0 HN03 ~ All Other Non Radiologies 0 0 250 rnl 0 0 No Preserv. 0 Gross Alpha 0 0 1,000 rnl 0 0 HN03 0 Other (specify) 151 0 Sample volume D ~ D S\A\-rO\+, If preservative is used, specify Type and Quantity of TDS Preservative: See instruction Comment A(f';\le~ on Si+c A.t O/L'I'-\.-r-Mn<r" MiA (r1A((,'f\ preJ(.(I+ -h;( f\A('~(, #on). .5(.ttv1pJ,~ elJe",t. ?v.I'~"-b~~.., "" 0750. P",("c3-<o' Well fo(" ().., +ot&l.\ of 390 M;f1l)t~5. W~t"( ~ L le",..-+i, (0 i 0 "'\ 1t.< 'PlAr ~ e ' ? '" ~9"C. enA "cl. "" ~ 50,.,? k~ t.0<"-CO iht-cq ~J lY;LO. O-epth +0 \,JfA.·h.r <1!.Jl.<.r plA7)e. wa.s 71.05 L~U ~ir<. ~1 IY3 0 '-________ ....JIDo not touch this cell (SheetName) White Mesa Mill Field Data Wo'rksheet for Groundwater N 0 0 0 0 0 ~ 2 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Attachment 1 ATTACHMENT 1 IOENISOJ) JI MIN ES FIELD DATA WORKSHEET FOR GROUND WATER -- WHITE MESA URANIUM MILL See instruction Description of Sampling Event: 13 f IJ\ G v..o./"h.( 0-(00..4 \No . .1.u ~OIl RC.~a.rv1pJ.c Location (well name ):1-1 .....;....M.;,.::W:..=.....--....:..I ~!:::..-________ --J Sampler Name and initials: I=f,." J'\t( Roll ;J'\.'1/T/t Date and Time for Purginm q I~ll ;l.O I \ and Sampling (if different) o.........;;N~/ It~ _____ ....... Well Purging Equip Used: [QJ pump or@] bailer Well Pump (if other than Bennet) Sampling Event I Qv..o...A<fI~ (,-'yJ I N'/A Prevo Well Sampled in Sampling Event 1-_______ --' pH Buffer 7.0 pH Buffer 4.0 Specific Conductancel'----'-q~....;...1"'__ __ _JI!-tMHOS/ cm Well Depth(O.Olft): 113Y . 00 Depth to Water Before Purgind 70 .2,S Casing Volume (V) 4" well:1 g I. b~ 1(·653h) 3" Well: 0 (.367h) L---=--_-J Conductance (avg) pH of Water (avg) Well Water Temp. (avg) I \f>.~~ Redox Potential (Eh)1 Y 15 Turbidity ,-I ....;;.0 __ ---' Weather Condo Ext'l Amb. Temp. DC (prior sampling event)l-lJ_"_o_ ....... Time IIY ss I GaL. Purged I 33 .~ I Time I JY~ I Gal. Purged 1&3,7 b. I Conductance 1 3'10~ I pH 16:3LJ I Conductance 13'-):2.D I pHI b.3j I Temp. DC I 18 .~b I Temp. DC I 18 ·8S I Redox Potential Eh (mV) I ::td--I I Redox Potential Eh (m V) I 'Y I 7 I Turbidity (NTU) I D I Turbidity (NTU) 10 I Time I IY57 I Gal. Purged I ~3.~ I Time 11l.J.$g I Gal. Purged I ~ y -11 I Conductance I "jY3~ I pH I C.'31 I Conductance 1 3Y~~ I pH I G.:JD I Temp. DC I IB.Eo I Temp. DC I )g,So I Redox Potential Eh (mV) I CII'l: I Redox Potential Eh (m V) I q D 5 I Turbidity (NTU) I D I Turbidity (NTU) I 0 I White Mesa Mill Field Data Worksheet for Groundwater 1 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1 %)9.l>3 Pumping Rate Calculation Flow Rate (Q) in gpm. S/60 = 1'----,2_1..;...7 __ .....J gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= 13B3 'b7 I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab~,-_...v.......;....;VA'-'--_____ ----J Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y N VOCs 0 0 3x40 ml 0 0 HCL 0 0 Nutrients 0 0 100 ml 0 0 H2SO4 0 0 Heavy Metals ~ 0 250ml ~ 0 RN03 M 0 All Other Non Radiologies 0 0 250ml 0 0 No Preserv. 0 0 Gross Alpha 0 0 1,000 ml 0 0 RN03 0 0 Other (specify) 0 0 Sample volume 0 0 0 0 If preservative is used, specify Type and Quantity of Preservati ve: See instruction Comment Arri\Jca. 01\ .srt"C. 0..1-af$~L\. --'-:"l'I1!.r ~f\t.L G-o-U\(\ Y'l"t:.S.Gtlf -k .... fv.r<:1~ Ci\.t7J ~~pIJ~ e\Jet)7: P\A("~~ bG5011'1 ""r 0 ({30. ?""r~~ct well for " 1-0+1\1 of 3~O 1YI'lrH.,Jes. tJo:tc·(" ~a..s c.\c"-r +hrov.~hou-.+ +~e. pur~e . '?u/~t!: l!YJdeJ. ~l'1cA .se.Yl'Jplc.J L.)~re (6)l~c.*=4 do'\-' 1500. Depth +<> wc...t<::r '" f+t"r" pv-r~c w".,) 7}. J} L.e.\t ~;+( 0.1 15 O~ '--________ -IIDo not touch this cell (SheetName) White Mesa Mill Field D'ata Worksheet for Groundwater 2 of2 MiII-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) OENISOJ)~~I ATTACHMENT 1 Attachment 1 WHITE MESA URANIUM MILL r See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description-of Sampling Event: I;:~{a GWA;=t=e.( &ro\}\r.J\ \No...'t.er ~H N:,.rlAt" ':t'n lJ~f~~:f;ol\ Location (well name):1...1 _M_w_-_1....:.1 ________ --l Sampler Name . and initials: I-ro:.noe(' ~o lI );J ~m Date and Time for Purgi n~ -, /1,\ / ~o \ 1 and Sampling (if different) '/f}j)J~Dl} Well Purging Equip Used:@]pump o@ bailer Well Pump (if other than Bennet) 1...1 Q--,-~=--=D::"-___ --I pH Buffer 7.0 /.D Specific Conductance ,-I _'1 ..... 1"-4..1-__ --11 !!MHOS/ cm Depth to Water Before Purgind S \. S b Conductance (avg) \ 4 0'1 ~-~-------I Prevo Well Sampled in Sampling Event I I... _""_W_-_~_7 ____ ---I pH Buffer 4.0 Ll .D Well Depth(O.Olft): I \yc.t oo Casing Volume (V) pH of Water (avg) 4" weil:l b3. ~~ 1(·653h) 3" Well:. c.) . (.367h) Well Water Temp. (avg) lb·l"-Redox Potential (Eh) 1 L1/7 Turbidity 1 ~. g Weather Condo Ext'l Amb. Temp. DC (prior sampling event)1 \ go Time 1 O~SS I Gal. Purged 1 1~q . \) I Time I OS:s5b I Gal. Purged I, 2 tl. '33 I Conductance I \qOs 1 pH I b. "S I Conductance I l~oS I pH I b. b"S I Temp.oC I \S.lS I Temp.oC I )S. \i I Redox Potential Eh (mV) I 9~b I Redox Potential Eh (mV) I YB6 I Turbidity (NTU) I ':>. ~ I Turbidity (NTU) L 3 .'1 I Time I 0 ~.sl I Gal. Purged II &q. sCI I Time IOSSSfS I Gal. Purged I );2.4 .7 , I Conductance I l~os I pH I b .bS I Conductance I \l.\O\ I pH Ib.bS I Temp.oC I ';'.) ~ I Temp.oC I 'S.'S I Redox Potential Eh (mV) I '-11 ::L I Redox Potential Eh (m V) I L\,o I Turbidity (NTU) I ~.~ I Turbidity (NTU) I ~.~ I White Mesa Mill Field Data Worksheet for Grouridwater 1 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I \~O.?-O Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = I . ?-, '1 gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= I 5~b .Y3 I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy LablL.,..M...:..v,..:...;'A=---______ -I Sample Taken Sample Vol (indicate Filtered Preservati ve Preservative Type of Sample if other than as Added y N specified below) Y N Type y VOCs 0 0 3x40 ml 0 0 HCL 0 Nutrients 0 0 100 ml 0 0 H2SO4 0 Heavy Metals 0 0 250ml 0 0 HN03 0 All Other Non Radiologics 0 0 250ml 0 0 No Preserv. 0 Gross Alpha 0 0 1,000 ml 0 0 HN03 0 Other (specify) 0 0 Sample volume 0 0 0 If preservative is used, specify Type and Quantity of Preservative: See instruction Comment A((i'Vf:.~ on ~j+~ 0..1' ~SO. ~n(J-e.r }tl>)\j ~2J ?('~s~"t-~(" pvrje oJ" M\0-ltt . Pv.("~-L be~n 0..+ 2'300. PV-(~~J. ~e'l o~-e..("n ·l~h+. A+ th~ ~'h\,t Df ?V.(~e.1 thL wc.tt<r \k),,~ (A. rt\; 1\-\ ~ ~,.e.~. \0o . .t~(" c.. \ -c,o..f e~ +h (D\J\~ I.lIJ'. +-+},"t: fv-(".~ ~, P v-,~<:: d---.....><.11 -rOI" ~oo l'VI<'flV\.tc:~. "f\. .... r~~ -e.l"\cXe~ 0-'" OC:WO. ,vo ~~pJe> \.:)e,f"'e. f"~tlJo,l re.d. ~Df' Qv.o.r+cr~ &rov.nJ. \0~1-er Ot1~ ~dc>. ?\-\. D~?th 1--0 ~,,+er o...q..ef" 'PW'"~< \..)"'~ Sg.SL L~+t ~it-e. ~+ O~()S L..-________ ....JIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 0 0 0 • 2 of2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan {QAP} • I I ()ENISOJ)~ ~ I ATTACHMENT 1 Attachment 1 r~ See instruction WHITE MESA URANIUM MILL MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 1 3 i dt Q""o..r1'~r Cn·OUl.(I ~ W&o"t~r" ~II Location (well name): .... 1 _M_W_-....;.).3-'-________ ---' Sampler Name and initials: I=tAnner" R DIl.J~ /1'rt Date and Time for PurgingJL,;~_'/_'L.:....;.\_7 ;)._O_IJ ____ ........ and Sampling (if different) L-I ""_V,....;.A ______ ---' Well Purging Equip Used: ill] pump o@ bailer Well Pump (if other than Bennet) 1 .... Q_E_D ____ -J Sampling Event lo:A:""rterotY Gw 1 M vJ-.;2.t..j Prevo Well Sampled in Sampling Event .... _______ --' pH Buffer 7.0 7.0 pH Buffer 4.0 Specific Conductance .... I....;~:.....:~_1 ___ ___II!!MHOS/ cm Well Depth(O.Olft): 1 t3~·OD Depth to Water Before Purgin~ II q .1 D Casing Volume (V) 4" well:l ll. (;8 1(.653h) 3" Well: 0 (.367h) '"------' Conductance (avg) pH of Water (avg) Well Water Temp. (avg) 118. go Redox Potential (Eh) 1 l13~ Turbidity 1 ~ .J Weather Condo Ext'l Amb. Temp .• ( (prior sampling event)1 :;L~ Time 11350 I Gal. Purged 1 \g .1d.-I Time 1 I Gal. Purged 1 I Conductance l ~blO I pH 1(;.38 I Conductance I I pHI I Temp. DC 112> .go I Temp. DC I I Redox Potential Eh (mV) I L13:J: I Redox Potential Eh (m V) I I Turbidity (NTU) 1.%2.·1 1 Turbidity (NTU) 1 1 Time I I Gal. Purged I I Time I I Gal. Purged I I Conductance I I pH I I Conductance I I pH I I Temp. DC I I Temp. DC I I Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I Turbidity (NTU) I I Turbidity (NTU) I I White Mesa Mill Field Data Worksheet for Groundwater 1 of2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I :;to. ~O Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = I .;l.og gallon(s) Time to evacuate two ca ing volumes (2V) T=2V/Q= 111;2..39 I Number of casing volumes evacuated (if other than two) 11.1 3 If well evacuated to dryness, number of gallons evacuated 12o.go Name of Certified Analytical Laboratory if Other Than Energy Lab~L..J,;tJ::..£Y.J.A~ ______ -I Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y N VOCs 0 0 3x40 ml 0 0 HCL 0 0 Nutrients 0 0 100ml 0 0 H2SO4 0 0 Heavy Metals 0 0 250ml 0 0 HN03 0 0 All Other Non Radiologies 0 0 250ml 0 0 No Preserv. 0 0 Gross Alpha 0 0 1,000 ml 0 0 HN03 0 0 Other (specify) 0 0 Sample volume 0 0 0 0 If preservative is used, specify Type and Quantity of Preservative: See instruction Comment '--________ -'IDo not touch this cell (SheetName) White Mesa Mill Field Data WorkSheet for Groundwater 2 of 2 MiII-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) I OENISONI)~~ ATTACHMENT 1 WHITE MESA URANIUM MILL Attachment 1 , See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Location (well name):L-1 -......:...M...:..W.:....:._-.:::;;;2~~ ________ ---J Sampler Name and initials: I..,...;Me. ... I-lo IJ;J~h» Date and Time for l'urgi 11~L....:::.g!...../ 3=-/u2-~O~II ____ -1 and Sampling (if different) a I y 1201 \ Well Purging Equip Used: [f[]pump o@ bailer Well Pump (if other than Bennet) L-1...::Q"-'e.:::....z::D~ ___ --' Sampling Event I Qv-.o.l'"te.("I.~ &W Prevo Well Sampled in Sampling Event L-1_~_vJ_-_3_() ____ ---I pH Buffer 7.0 7.0 pH Buffer 4.0 y.O Specific Conductance 1'-...... 9'"""~ .... 4 ___ -'I f,tMHOS/ cm Well Depth(O.Olft): JCbO.QO Depth to Water Before Pu rgi n~ II y, bY Casing Volume (V) 4" well:1 'b.Se> 1(·653h) 3" Well: 0 (.367h) L---=--_-I Conductance (avg) pH of Water (avg) Well Water Temp. (avg) I ~·'3Y Redox Potential (Eh) I 1 q b Turbidity 1 L.. _D __ ----' Weather Condo Ext'l Amb. Temp. °C (prior sampling event)1 ,.~O Time 1 \930 I Gal. Purged 15-1" I Time 1 I Gal. Purged I I Conductance I ~Y~lg I pH 1 b.Y;' I Conductance I I pHI I Temp. DC I p."!:?LI I Temp. DC I I Redox Potential Eh (m V) I 19b I Redox Potential Eh (mV) I I Turbidity (NTU) I 0 I Turbidity (NTU) L I Time I I Gal. Purged I I Time I I Gal. Purged I I Conductance I I pHI I Conductance I I pH I I Temp. DC I I Temp. DC I I Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I Turbidity (NTU) I I Turbidity (NTU) I I White Mesa Mill Field Data Worksheet for Groundwater 1 of4 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev, 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1,---",£_' ____ --' Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = I .l ~l Co.71. gallan(s) Time to evacuate two casing volumes (2V) T = 2V/Q = 13b.l.\5 I Number of casing volumes evacuated (if other than two) 1 \.~ l. If well evacuated to dryness, number of gallons evacuated 1 C,.7Q.. Name of Certified Analytical Laboratory if Other Than Energy LablL..:"'''''.L..~:....:A~ ______ ....I Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y VOCs 0 0 3x40ml 0 0 HCL 0 Nutrients 0 0 100 ml 0 0 H2SO4 0 Heavy Metals O! 0 250ml ~ 0 HN03 ~ All Other Non Radiologics 0 0 250ml 0 0 No Preserv. 0 Gross Alpha 0 0 1,000 ml 0 0 HN03 0 Other (specify) 0 0 Sample volume 0 0 0 If preservative is used, specify Type and Quantity of Preservati ve: See instruction Comment Afr;ve~ on ~rrt!: 0..1-1355 . "-"tIt'lt'( "",tl (,.o..rr:fl on sit~ +0 Fur~c MW-.:2.'-\. Pu.r~~ b~~o.t\ 4+ ILf 00. rv.l"~e~ \,)~1I for ()... +otfAl ot: 3S M;nlA1--e~. u.)1A:h,.. 'h4~ \Jcr~ )·Hlc c.o)or,,+;oYl, MO~1-~'1 c.1eQ,,(" ~ N 0 0 0 0 0 0 f ",( ~{~ \>le 11 ~('\ '. H"", ("'-\, "kcrcc.seJ -J),'o~), O"'~ P"'j< \A #;1 w." r.n d (j I, P\),r~-e. e"dc:d. (A'S{ 1435. L~ ~;+t ~+ IY3~ An\v~fA. CIA.. ,'i+c.. "".y 0730. 6",-f"'1"'·'1I\. ff"!..>~+ for-SOVV\fl iol\,!) e.v~+~ .st)...vVIofl!J~ w~rl.. c..ol\!..l.-r£;')' e...+' 07Yb~ De.p+k +b wc..-h.r' #...f t~ JCc-~f'~ We.r!... c..o l lc.Ltt:-A W~ 111.\.7' h~.c -¥ ~ .+~ _t-J-i-O 7~1? '--________ ....IIDo not touch this cell (SheetName) White Mesa Mill Fie1d Data Worksheet for Groundwater 2of4 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) 'OEN'SOJ)~~i ATTACHMENT 1 WHITE MESA URANIUM MILL Attachment 1 1-See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 13T"(A Q\A~r:tu Gro"""c}... \/j",fu ~Oll Location (well name): ..... 1 f-\_W_ ... _;L_S-'--________ ---' Sampler Name and initials: Efl'lfl~"" Ho11 :J~ )'T"t! Date and Time for Purginm'-_3-:.!_3-:.!_:J.-_O_'_l ___ ----' and Sampling (if different) ..... 1 _~_IA ______ ----J Well Purging Equip Used: [![jpump o@ bailer Well Pump (if other than Bennet) Sampling Event 1 Q",,,\.r'tu t; &0 I MW-II Prevo Well Sampled in Sampling Event ..... _______ ----J pH Buffer 7.0 pH Buffer 4.0 4.0 Specific ConductanceL-1 -J~-:.q_~ ___ ....JI/lMHOS/ cm Well Depth(O.Olft): 1 11.5.0D Depth to Water Before Purgingj 14. hb Casing Volume (V) 4" well:1 :J-fo. 3lj 1(·653h) 3" Well: 0 (.367h) '--------' Conductance (avg) 31/d-.. pH of Water (avg) WellWaterTemp.(avg) 1 15.37 Redox Potential (Eh)L-1 :l5 __ J_----I TurbiditYL-1 ......;O~_----I Weather Condo Ext'l Amb. Temp .• ( (prior sampling event)1 p D Time 11040 I Gal. Purged I SS.'3'5 I Time 110 Y/ I Gal. Purged I SS. S5 I Conductance I' r '?-S . 1-1 .~~ 1 pHl b.bl I Conductance I ~Y30\ I pH I ~.q) I d-.70-;).. Temp. DC I I'S.~ I Temp. DC I l~.l.\ 1 I Redox Potential Eh (mV) 1 ,:55 I Redox Potential Eh (mV) 125;;2.. I Turbidity (NTU) 1 0 1 Turbidity (NTU) I (.) I Time 1 lOy:). 1 Gal. Purged 1 55 .iL 1 Time 11OY3 1 Gal. Purged 1 .ss ·'36 I Conductance 1 ~'8 1 pH [b.g;,: 1 Conductance I ~.?~ I pH I b .Y~ I Temp. DC 1 \5 .QI 1 Temp. DC 115.3'3 1 Redox Potential Eh (mV) 1 ;.l. 9q I Redox Potential Eh (mV) I ~ 9 if I Turbidity (NTU) 1 0 I Turbidity (NTU) 1 0 1 White Mesa Mill Field Data Worksheet for Groundwater 1 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I Sb ,I..\:;J.. Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = L-I ._;2.._17 __ ----' gallan(s) Time to evacuate two ca ing volumes (2V) T=2V/Q= I:t.Y.l .7B I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab~ A ~ A L, ~ ef ot:' '" ()'-~ Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve Type of Sample if other than as Type Added y N specified below) Y N y VOCs KI 0 3x40 ml 0 ~ HCL ~ Nutrients III 0 100 m1 0 Il.I H2SO4 ~ Heavy Metals I2SJ 0 250ml 'f] 0 HN03 "fl All Other Non Radiologies rtl 0 250ml 0 II No Preserv. 0 Gross Alpha ~ 0 1,000 ml ID 0 HN03 ~ Other (specify) rn 0 Sample volume 0 19 0 CroGn-e-rO\\ '1nO(!1o.l'\'\O If preservative is used, specify Type and Quantity of Preservati ve: See instruction Comment Afr'I'3C~ on ~,t~ CA.1-Obl.O. -ru.nh~(, CA",c}. E,.-&\((:", 'PT"c~~n+-'\;( 'f"'~ "'fleA f.QI'\'l pl;~ 'e\)C.wt ?w~<.. be~(},f') 0\.1-Ob.?$.. PlAr~e~ -..)ell -For Ot.. -to+eo.J of' ~"O M;"lJoto . WIi.-h·r II,)&tJ c./(,c,r +~rou~hO"'1-.}hl p\A(~E'. P ",r~e (:11 de~ a n~ .5~ M pJe.5 WCf~ collec1ed ~+ JOI.)5 , [)t:p+~ +0 \,.)cJ~(" ~ttcr' PL./~f v.J~~ 1~·~() Let} .si-te e:.-r 10.5' L-________ ..JIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 JSI 0 'f] 2 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Attachment 1 ATTACHMENT 1 ()ENISO,})J~ WHITE MESA URANIUM MILL , See instruction MINIS FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I ?/~ Q u,CA.rtC(' C:rrou'(ld, W",+c.r ~Oll R<.,s"G\1'VJ pic.. Location (well name):I-I.;...M_W_-~::L=-S _________ ----.I Sampler Name and initials: I =t:."'\1-G(' ~o 1\: ).~jlrrl Date and Time for Purgingj t6/30/~ol \ and Sampling (if different) L..--_"v,_:l._ft _____ --' Well Purging Equip Used:OOpump or([] bailer Well Pump (if other than Bennet) .... 1 ....;;;Q..;..E._D ____ --' Sampling Event IQ",o..c\'u,,~ &W Prevo Well Sampled in Sampling Event I M W <~2... pH Buffer 7.0 7.0 pH Buffer 4.0 ~.O Specific Conductance .... 1 _'\"-q_~=---__ --'I!-tMHOS/ cm Well Depth(O.Olft): L..;..P"-15_.0_D __ -,, Depth to Water Before Purgind 74.4.3 4" well:1 ~C;, Y1 1(·653h) 3" Well: 0 (.367h) L.-__ --..I Casing Volume (V) Conductance (avg) 331S pH of Water (avg) Well Water Temp. (avg) 1 IS. 33 Redox Potential (Eh) I 530 Weather Condo Ext'l Amb. Temp. °C (prior sampling event)' 'bD Time 11DL\D , Gal. Purged , 5.'3> .j -k , Time ,1l)41 , Gal. Purged ,5)3.3 g , Conductance , 3317 , pH' G .. SL\ , Conductance , ')3>,3 , pHI b ·59 , Temp. DC 1 I~·-s~ I Temp. DC I IS:3t1 I Redox Potential Eh (mV) 1541 I Redox Potential Eh (mV) IS"5':Z I Turbidity (NTU) I !;.1 I Turbidity (NTU) I 0 I Time I IOQ2, I Gal. Purged I ~~.b'\ I Time llOYd I Gal. Purged I S3. g \ I Conductance I ::,':) 17 I pH IG .. S4 I Conductance 13:5J~ I pH I C;;,39 I Temp. DC 115.'55 I Temp. DC I JS,~ I Redox Potential Eh (mV) I W I Redox Potential Eh (mV) 1 :s:m I Turbidity (NTU) I D I Turbidity (NTU) I 0 I White Mesa Mill Field Data Worksheet for Grouridwater 1 of2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1 SLj . ::LS gallon(s) Pumping Rate Calculation Flow Rate (Q) in gpm. S/60 = 1 . ;2..11 Time to evacuate two ca ing volumes (2V) T=2V/Q= 1.2 4'i.lb 1 Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Labl .... -'N~/.....;..Il"--_____ ...... Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Type Added y N specified below) y N Y N VOCs 0 0 3x40 mI 0 0 HCL 0 0 Nutrients 0 0 100mI 0 0 H2SO4 0 0 Heavy Metals ~ 0 250 mI E 0 HN03 tJ 0 All Other Non Radiologies 0 0 250 mI 0 0 No Preserv. 0 0 Gross Alpha ~ 0 1,000 ml I!SI 0 HN03 f] 0 Other (specify) 0 0 Sample volume 0 0 0 0 If preservative is used, specify Type and Quantity of Preservative: See instruction Comment A1'ri'VG~ Cln ~i-tc. ~+ 0'-30. ~""v (JI.flo. (,.0.(';1\ ?r-t.~ct'\+-for pv.,.~~ ",,~ -S1".\f1!\ p]l~ even+. p",(~C bc.~().1'\ ~+ Ob'3$. f'v.(~t:.c\. I"o)el\ +o("<l\. +ohd err 250 M:"v.+e.s. \uA+Ci w~ C. )e.~r +l,rou.jhov.t t~c.. pu.r~c . pV.('5c crr)c4 tA!1J jqlY] plc.5 wCt.S c oJ/u.R.-d (l"f--' 04..5 lett-.slfe ,a-1a~~. Dc?t\ -tt> \..,JCA+cr v.+-trr-p\ArU e ~Ct~ 7~.X) '--________ -IIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) i OENISOJ)~~1 ATTACHMENT 1 Attachment 1 WHITE MESA URANIUM MILL '" , See instruction MINES : FIELD DATA WORKSHEET FOR GROUND WATER -------.----, Description of Sampling Event: 13riA Q",{)..rtc( 6-fOlAnt! W~+a ;l.o II Location (well name): ... , -'M......:....;..W_-...::~--..::;.... ________ ~ Sampler Name and initials: '-r;.I\nGr HolliAII..!::l)rlt Date and Time for PurgingJ ..... ....:.~..;..J':>=I'-';1..:.....;o.;;...I_I ____ --' and Sampling (if different) ... , ,;....111._1;1-'-_____ ---' Well Purging Equip Used:OOpump o@ bailer Sampling Event , CJ'V..6.rt <.r ~ 6-W pH Buffer 7.0 I .b Specific Conductance ..... ' _q:....J~:......<1 __ ----"IlMHOS/ cm Depth to Water Before Purgin~ 70.1 , Conductance (avg) Well Pump (if other than Bennet) Prevo Well Sampled in Sampling Event L..1_M_W_-_:L5 _____ ...J pH Buffer 4.0 \.\.0 Well Depth(O.Olft): 'I~' .33 Casing Volume (V) pH of Water (avg) 4" well:1 33.0~ 1(·653h) 3" Well:L-. _O~_----I.(.367h) G.67 Well Water Temp. (avg) ,IS . b~ Redox Potential (Eh) ..... , Y_O_3 __ --' TUJbidity ''---0 __ ---' Weather Condo Ext'l Amb. Temp. O( (prior sampling event) I ;tOO Time , O ~20 I Gal. Purged I I Time , I Gal. Purged I I Conductance I ~SL'~ I pH I C:,.07 I Conductance I I pH I , Temp.oC I 15. b~ I Temp.oC I I Redox Potential Eh (mV) I ~O~ I Redox Potential Eh (mV) I I Turbidity (NTU) I D I Turbidity (NTU) I I Time I I Gal. Purged I I Time I I Gal. Purged I I Conductance I I pHI I Conductance I I pHI I Temp.oC I I Temp.oC I I Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I Turbidity (NTU) I I Turbidity (NTU) I I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1<--_6 ____ --1 gallon(s) Pumping Rate Calculation Flow Rate (Q) in gpm. S/60 = ,-I ____ ---I Time to evacuate two casing volumes (2V) T=2V/Q= 1 0 1 Number of casing volumes evacuated (if other than two) b If well evacuated to dryness, number of gallons evacuated o Name of Certified Analytical Laboratory if Other Than Energy Labj /'tWA\. I St.-\-of;' 0 0Cs Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) y N Type y VOCs ~ 0 3x40 ml D ~ HCL ~ Nutrients [1 0 100ml D I] H2SO4 r,iI Heavy Metals [j 0 250ml r2!I D HN03 I:sI All Other Non Radiologics rj 0 250ml D [2! NoPreserv. D Gross Alpha ~ 0 1,000 ml 121 D HN03 []- Other (specify) ~ 0 Sample volume D []. D G-en e( 0. \ 1..nor ~ " fI' '( ~ If preservative is used, specify Type and Quantity of Preservative: Comment lc See instruction A(fi\lC~ on ~i1(. ~1 of)~O, ~nn("( OJ').. &~((;tJ pr~s('nt .tor .s~tv\pllll:J 'G\)G'ni. Tv.rne~ pv..lV\p on I Lc+ r~r'\ for; M:n l.A+-<-S. ... -roo"-\ sa err Fru,n,e:h:rs. S.C\l'",p\~;. I.\)e('~ p",\\e~. fi..1 Of(~b. \"J~{r VJC\.s. G)eo..r ~ w~lI .... G(f\ J~ r ;.;jht whet') ~-t. Wer~ ~on(. (,O\I-e(+l~ ~~Mple.~. 'lv..rl'tt~ p\.AMf' of+. L-e.0-~'lte fAt O~4Y . '--________ --1IDo not touch this cell (SheetName) White Mesa Mill . Field Data Worksheet for Groundwater N D D D [21 D rn 2 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) I I ATTACHMENT 1 OENISO,/)~ J I WHITE MESA URANIUM MILL Attachment 1 See instruction MINES --l FIELD DATA WORKSHEET FOR GROUND WATER D~iption of Sampling Event: 13((>; Gv.(.I.c'h::r G-rovJ)d. UJCA.f.c..(" .:201 I l<-(.~r1 pJc. Location (well name):L-1 _M:.......:....;W~-..:....%---:;;.... ________ --I Sampler Name and initials: Ff,,(I4!'f" Ho",'(}I.(~/-r'W Date and Time for Purgin~ ~ /:3 0 /:Ao 1/ and Sampling (if different) IL-M_y._A"--_____ ----' Well Purging Equip Used:OOpump or@] bailer Sampling Event 1 G""IA;( f-c.(' lj & W pH Buffer 7.0 7.0 Specific Conductance\-I ..... ~...:.1-'-' ___ -JI!-tMHOSI cm Depth to Water Before Purginm ] b . g I Conductance (avg) 3("1l.\ ~-------~ Well Pump (if other than Bennet) I ~W-)t.j Prevo Well Sampled in Sampling Event '-_______ ----' pH Buffer 4.0 I..LO Well Depth(O.Olft): \-p_~_\_.3_3 __ ---J Casing Volume (V) pH of Water (avg) 4" w ell:I ;t<i·07 3" W II: 0 1(·653h) (.367h) Well Water Temp. (avg) I".S J Redox Potential (Eh) l\-q_, l1 __ -J Turbidity 1'--0 __ --..1 Weather Condo Ext'l Amb. Temp. DC (prior sampling event)I~'i /) Time I l\O~ I Gal. Purged I I Time I I Gal. Purged 1 I Conductance I 3bl~ I pH 1 b . .58 I Conductance I I pHI I Temp.oC I lbSJ I Temp.oC I I Redox Potential Eh (mV) I :114 I Redox Potential Eh (mV) I I Turbidity (NTU) I 0 I Turbidity (NTU) I I Time I I Gal. Purged I I Time I I Gal. Purged I I Conductance I I pH I I Conductance I I pHI I Temp.oC I I Temp.oC I I Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I Turbidity (NTU) I I Turbidity (NTU) I I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged ..... 1 __ 0 ___ ..... Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = I C.& gallon(s) Time to evacuate two ca ing volumes (2V) T=2V/Q= 1 D I Number of casing volumes evacuated (if other than two) 0 L...-___ --' If well evacuated to dryness, number of gallons evacuated 0 L...-...:.... __ --' Name of Certified Analytical Laboratory if Other Than Energy Labl ..... ......;;...#...:.,.'i.;..:'PJ ______ --' Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y VOCs 0 0 3x40 ml 0 0 HCL 0 Nutrients 0 0 100ml 0 0 H2SO4 0 Heavy Metals EilI 0 250ml m 0 HN03 iil All Other Non Radiologics 0 0 250ml 0 0 No Preserv. 0 Gross Alpha !jI 0 1,000 ml (gJ 0 HN03 iii Other (specify) 0 0 Sample volume 0 0 0 If preservative is used, specify Type and Quantity of Preservative: See instruction Comment I ~ Arr:\'Id 00 s;t, o..t lIOC, -rAnncr ",,.,a (;-1).((;" pres"n} +0 u>1/~c.+.54"1 f1 e. P1AnU."J'eJ--''''rI)~4 rU.Mp 6n "''';. Lc+ f'uf) ~f' ~ -telA':) 'rl)ir'IV;h:~. 1001.< 1 ,Sc-Y '*' fo.("o.l""l~te"'..), .5a""fJ(' WlA~ c.o\\-e(.tt"J Ik-t 1110, le:.t1-~;+c: 61:1-)lIS . wc..ter \..J~ (.J~o.r . L...-________ .....IIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 0 0 0 2 of 2 Mill· Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) OENISONI)~ ~ I ATTACHMENT 1 Attachment 1 WHITE MESA URANIUM MILL ,. See instruction . MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I MW-'J./ 31"'"iXO G)v.Ci\.r+u-Grov..M}\G)C/..f-(.(~Oll Location (well name):II.-_M_W_-_;l_-:J~ ______ ----J Sampler Name and initials: p;. V'\1'1 ~r Holl;()\(,..j /Tij Date and Time for purgind KI 8/;2,01\ and Sampling (if different) II.-.N...;...'/_It _____ ----J Well Purging Equip Used: OOpump or@] bailer Sampling Event I Q",g.d·er\~ (yw pH Buffer 7.0 '7.0 Specific Conductancel,-~ ...... q ..... j-l-__ -,I!-lMHOSI cm Depth to Water Before Purgind S l.17 Conductance (avg) lS07 Well Pump (if other than Bennet) 1 Q £ D '----------' Prevo Well Sampled in Sampling Event I MW-~3 pH Buffer 4.0 1.1.0 Well Depth(O.Olft): I ~5 . 00 Casing Volume (V) pH of Water (avg) 4" well:1 ;:t8. b~ 1(·653h) 3" WeLJ:I-. __ 0_----'. (.367h) Well Water Temp. (avg) 1 /.b.75 Redox Potential (Eh) 1 3 73.... Turbidity I 3. 02. Weather Condo Ext'l Amb. Temp. °C (prior sampling event)1 I ga' Time I tU5 I Gal. Purged I 51-SO I Time I 12J~ I Gal. Purged 11) 1 .72 I Conductance 1 1~~:i I pH I b.% I Conductance 115 6..5 I pH I 6.37 I Temp.oC I 16.2$5 I Temp.oC I I (, -S"; I Redox Potential Eh (mV) I 3~g I Redox Potential Eh (m V) I 3~5 I Turbidity (NTU) I 7 __ ~ I Turbidity (NTU) Llto I Time I I~n I Gal. Purged I F21.q3 I Time I 1:l:18 I Gal. Purged I s g. 15 I Conductance I lS12. I pH I C;·3g I Conductance I '~.?.D I pH I b.31 I Temp.oC I Ib-b:l.. I Temp.oC I lL. 81 I Redox Potential Eh (mV) I 36J I Redox Potential Eh (m V) I :)S( I Turbidity (NTU) I g.1 I Turbidity (NTU) I g·1 I White Mesa Mill Field Data Worksheet for Groundwater 1 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I S~.Sq Pumping Rate Calculation Flow Rate (Q). in gpm, S/60 = I ,;2.\1 gallon(s) Time to evacuate two ca ing volumes (2V) T=2V/Q= I 'JJo'3 .7¥, I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Labl ..... _/!J....!./-'-A ______ --J Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve Type of Sample if other than as Added y N specified below) Y N Type y N VOCs 0 0 3x40 rnl 0 0 HCL 0 0 Nutrients ~ 0 100 rnl 0 ~ H2SO4 Iil 0 Heavy Metals 0 0 250ml 0 0 HN03 0 0 All Other Non Radiologies 0 0 250ml 0 0 No Preserv. 0 0 Gross Alpha ~ 0 1,000 rnl ~ 0 HN03 r!I 0 Other (specify) ~ 0 Sample volume 0 13 0 [) c'h lor i J (' If preservative is used, specify Type and Quantity of Sv.\rc.J-c Preservati ve: IDS See instruction Comment A("r;\J e~ 0(\ s,'t<-(Af 07,",S.--r;Y1ntr' 1i\t1J. CrM(;t'\ pr'~scnt JOr p'-t(j'C t:in~ .5a.M p]J'II'I(j C=\JGnr. l' \Ar~'C. be~",1'\ ~t 0750. P"'(~('A well .fu( 0.. +0+",1 of :J.7D M :nv..+<.~. \.Vod-er tV~5. c.)-Ct.l.('" i-~(()\}.~OlAt-+h~ pv.(~e _ P "'r~t:. eY\Je~ a.r'\t! so.",pJe..s W'C('<" coll~c.+~~ ",t I~D L-e..t.t ~ ;+<, v.t-\A;2.S . Dc pth +0 W&o.,te.I fA.A(", pv\'r~< ~c..S 5~.54 '-________ -JI Do not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) IOENISONl)jJI ATTACHMENT 1 Attachment 1 WHITE MESA URANIUM MILL MINIES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I '31'(1\ Q ",tAr t-{( u-( 0\.\1'\ tA w ~t<.(" ,9,011 Location (well name):IL.......;..M-=--vJ_-_.J._g _________ --' Sampler Name and initials: See instruction Date and Time for Purgi ngJl..-...,;::;~..:..../=g!-1 ~_o.....;.II ____ -, and Sampling (if different) I'---#._VA ______ --' Well Purging Equip Used: [g[]pump or@] bailer Well Pump (if other than Bennet) IL.......::Q"-G.=D"--___ --' Sampling Event I Q v'.."" .... t.el" h\ lr W Prevo Well Sampled in Sampling Event IL...-M_W_,_J._7 ____ ----' pH Buffer 7.0 7.0 pH Buffer 4.0 '1.0 Specific ConductanceL-I_4..l-9..:....''''-__ -III-tMHOS/ cm Well Depth(O.Olft): 1110.00 Depth to Water Before Purginm 77. () 1 4" well:1 ;2.1.50 IC.653h) 3" Well: 0 (.367h) L....---=--_----' Casing Volume (V) Conductance (avg) L-I _L1.:...:()"""'{;""-9.L.-____ ---' pH of Water (avg) Well Water Temp. (avg) I ]5.161 Redox Potential (Eh) I q b g TurbiditylL....-° __ ---' Weather Condo Ext'l Amb. Temp. DC (prior sampling event)lL...Il~~_D ---I Time I}HS I Gal. Purged I Li2.31 I Time III H. I Gal. Purged I Ll~ .53 I Conductance I ~D64 I pH I 5.75 I Conductance I i.{D70 I pH I 5.71 I Temp.oC I 1$.80 I Temp.oC I If,.gl I Redox Potential Eh (mV) I ~3.5 I Redox Potential Eh (mV) I Llf)g I Turbidity (NTU) I b I Turbidity (NTU) I D I Time 111 11 I Gal. Purged I '-\:1.:79 I Time I I 118 I Gal. Purged I qX .~, I Conductance I ~Db7 I pH I 5.K~ I Conductance I :\D71 I pH 15'.1& I Temp.oC I IS.S5 I Temp.oC I 15.& I I Redox Potential Eh (m V) I 90bR I Redox Potential Eh (mV) I ~&:J I Turbidity (NTU) I D I Turbidity (NTU) I Q I White Mesa Mill FIeld Data Worksheet for Groundwater 1 of 2 MiII-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1 Y3.y D Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = ,-I _._~_\7 __ --, gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= 11'1g.18' 1 Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab~L-....;,.tv....:./..:..A~ _____ ---I Sample Taken Sample Vol (indicate Filtered Preservati ve Preservative Type of Sample if other than as Added y N specified below) y N Type y N VOCs 0 0 3x40 ml 0 0 HCL 0 0 Nutrients 0 0 100ml 0 0 H2SO4 0 0 Heavy Metals 0 0 250ml 0 0 RN03 0 0 All Other Non Radiologics 0 0 250ml 0 0 No Preserv. 0 0 Gross Alpha 0 0 1,000 ml 0 0 RN03 0 0 Other (specify) ~ 0 Sample volume 0 ~ 0 ~ C h 'or; de If preservative is used, specify Type and Quantity of Preserv ati ve: Comment l I See instruction Arr:l)e~ on .~J~~ ~t 015E. -) ... .,1\(.( ~"J.. CtMrlY\ P(£S~flt-..hr f\.Arj~ ~nJ.... .st\tr'lpl :flj -€\JoUIt-. f' u..r~<=.. 6e~(A(\ ~+-O~OO. Pv..r~;::A well for r;.. 1-ot~1 of=' :Z06 M :"V-+'t"~. wafer wa.S c)eo.,--tJ.,(ov.~h()c.J­ +hl pv.ftr P\A,r~c ~n~t'rA "nA .s~mple ~ ,o/l ... <.h-~ D..1' II.:(D . Left-.si.J.c: ~J.. JZ).I.j. '--________ ..... 100 not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 20f2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) I ATTACHMENT 1 I !lENISON') ~ WHITE MESA URANIUM MILL Attachment 1 I MINES FIELD DATA WORKSHEET FOR GROUNDWATER Description of Sampling Event: 13 (01 Q\Ao..rte.r L:rround\ \..J o.+er ;;tD) I Location (well name):IL-""'_W_-_:l_4 ________ ----' Sampler Name and initials: See instruction Date and Time for Purgi ngJ~%<..:../....;~:..:./.;.....1.!_O--=1 J~ ___ -, and Sampling (if different) IL.:..,;J_/_~ ______ --, Well Purging Equip Used: [!I] pump o@ bailer Well Pump (if other than Bennet) IL-Q.;....t_D ____ -.l Sampling Event I Q"'G\(+er~ &W Prevo Well Sampled in Sampling Event 1 ..... _M_W_-_l_~ ____ ----' pH Buffer 7.0 1.0 pH Buffer 4.0 4.0 Specific Conductance 1-1 _4..:...~.r....;~:""'-__ ....J1 !-tMHOS/ cm Well Depth(O.Olft): 1 1.:2.7.00 Depth to Water Before Purgingj lca...lS 4" well:1 1G.;a. 1(.653h) 3" Well: 0 (.367h) '----=-------' Casing Volume (V) Conductance (avg) pH of Water (avg) ~.20 Well Water Temp. (avg) 11.5·0' Redox Potential (Eh)1 a..: 2=50 __ --, TurbiditYI-I _J 7 __ ----' Weather Condo Ext'l Amb. Temp. DC (prior sampling eventll 18«1 Time 10'\40 I Gal. Purged 1 S 1. Lj.f, I Time l oq '-\\ I Gal. Purged 131. bog I Conductance 1 C\ ~ l.\ ~ I pH 16 .:;t?. 1 Conductance 14850 I pHI b.)g I Temp.oC I ls.Db I Temp.oC 115.0Zf 1 Redox Potential Eh (mV) I iSG I Redox Potential Eh (m V) 125 c 1 Turbidity (NTU) 11i.1 I Turbidity (NTU) 117.0 I Time I 0 9 l.1.;2. 1 Gal. Purged 13 \ . 89 1 Time IOql.]~ 1 Gal. Purged I 3~.1 \ 1 Conductance 14Bqq 1 pH ICO.a::!) 1 Conductance !LJ<5 YD 1 pH 16220 I Temp.oC I lf"D7 1 Temp.oC 115.6.5 1 Redox Potential Eh (mV) 1 .2. qg 1 Redox Potential Eh (m V) I::Q y } I Turbidity (NTU) I J b . 2i 1 Turbidity (NTU) 11=='.0 ! White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1 3:2. ..:55 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 1,---, .;;....~_17 __ --' gallon(s) Time to evacuate two ca ing volumes (2V) T = 2V/Q = I I'ig.~ 1 Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy LablL....:..;;v~'/tJ~ ______ -I Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve Type of Sample if other than as Added y N specified below) Y N Type y VOCs D D 3x40 mI D D HCL D Nutrients D D 100mI D D H2SO4 D Heavy Metals ~ D 250 mI rll D HN03 IX] All Other Non Radiologics D D 250 mI D D No Preserv. D Gross Alpha D D 1,000 mI D D HN03 D Other (specify) D D Sample volume D D D If preservative is used, specify Type and Quantity of Preservative: Comment I "1': See instruction Arrj\)(.A 01\ ~i+e ~f 0711. ''''''n~( ~"J. G-a.((,:n pr-e.se.nT -For y>",r64!. GI.,,~ .sf,~'P);':j 'E.\lGfll E.".r~c. b'C.~(;,"'" ~:t 07/5.. Pv..([j-e~ ~~Il .\0,. d\.. +b+1,.1 of 1St> M;r1~·h~~. w~f(r'" wc..s N D D D D D D \'Y\O>1-~ LlefJ.(". PlAf.jG c;n~c£k ~Y\A .s"Mplc~ \t.)c:(<. Golle(:\-e~ ~t o~45. P~?+h ,·h Wq1-"(/ vJc..s lOY.6.Y L-et1-~;+~ ~J 04 yq '--_______ --..IIDO not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) ! ()ENISONI)~ ~ ATTACHMENT 1 Attachment 1 [ ,.: I See instruction WHITE MESA URANIUM MILL MINIES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 13 ('/JI Q\AlA('~(' 6-rO\A"~ \'uO\+cr ;2.0 II Location (well name):Ir...;M.:.......:....:w..::........:-3=--D _________ ---' Sampler Name and initials: 1~f5j,--3""-,-,,g.,--()_'_I _______ ---, --!:flnu -Holl ;dA>\hH Date and Time for PurgingJL.......68o!L.l....",3~/~=I..:..., ____ ....I Well Purging Equip Used:OOpump or@] bailer Sampling Event 1 Q",,,rfub (,-w pH Buffer 7.0 1.0 Specific Conductance ..... 1 _4;.....;1:.....0'1'---__ ..... 1 [!MHOSI cm Depth to Water Before PurgingJ 7 b _ bO Conductance (avg) :2..115 and Sampling (if different) 1L.....:..;;v:...../.:..J."i'---_____ ......J Well Pump (if other than Bennet) Prevo Well Sampled in Sampling Event IL..-M_W_-_'_y ____ ......J pH Buffer 4.0 tl.O Well Depth(O.Olft): 1 ) 10_00 Casing Volume (V) pH of Water (avg) 4" well:1 ?-1.8) 1(·653h) 3" Well:L..... _0 __ --'. (.367h) b-bO Well Water Temp. (avg) I I !)-'7~ Redox Potential (Eh) I ;2.3 0 Turbidityl'--C __ ----' Weather Condo Ext'l Amb. Temp. °C (prior sampling eventll .:;2.b1) Time 11 l1L\O I Gal. Purged I q 9 .li ~ I Time 11L\L\J I Gal. Purged I y Y. 70 I Conductance 1 'd--lll I pH I 6. .5q I Conductance I .:2Jl3 1 pH 1 {,.,"O I Temp. DC I rS .7S I Temp. DC 1 15 .7." 1 Redox Potential Eh (mV) I ~~ I Redox Potential Eh (mV) 1 .%2.8 1 Turbidity (NTU) 1 0 I Turbidity (NTU) 1 0 I Time 11YI..\2. I Gal. Purged I y Y .41 I Time 111.-)14:3 1 Gal. Purged 1 Y 5. J '3 1 Conductance I :;2..,1~C) 1 pH I c;. c:.o I Conductance 1:2) 17. 1 pH 1 G;,.GI 1 Temp. DC 1 \ 5. 61 I Temp. DC 1 ~5.80 1 Redox Potential Eh (mV) 1 XIS I Redox Potential Eh (mV) 1 j;i;& 1 Turbidity (NTU) 1 0 1 Turbidity (NTU) 1 b 1 White Mesa Mill Field Data Worksheet for Groundwater Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1 4 S. S 7 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 1-1 -.:' ;;;..:::...........:17'--_-----' gallon(s) Time to evacuate two casing volumes (2V) T = 2V/Q = 1,;1,.0\.01 1 Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Labj AW,IIl... 1 ~ d of' \J DG~ Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Type Added y N specified below) y N Y VOCs C1 D 3x40 m1 D [} HCL III Nutrients [j D 100 m1 D 121 H2SO4 ijI Heavy Metals ~ D 250ml ijI D HN03 ~ All Other Non Radiologies ~ D 250ml D EilI No Preserv. D Gross Alpha [1i D 1,000 ml r2lI D HN03 I1l Other (specify) r!:J D Sample volume D rll D &~r1M&.J :ft, O~(Af\ ;(S If preservative is used, specify Type and Quantity of Preservative: See instruction Comment A(r"'''~~ Ot"\ .s;·h:. CA.f lllCl. -}o..nl't'r O-r1A &6.(,;(1 ?("ese~+ -to r pv.'j< "'r1r-\ .so.Mplj e\Jt!:tlt- Pv..(~C b~~l".\1"\ tAt \1\.~, Pw~cc}, lJ.)~11 to(o.. 1-o-t~1 of ~Jo N;nlAtcs. pW~(~"J~4&tt ILILJ5· v.JGl.tcr ""CtS c.1~lA.'" 1;,ro"'"S0u...1-pl..\ ... t~-5<"MpJ~ Were lolJecJ-c:J c:..t 1~'i5 . Dt:p~ 1-0 \..J()..1-cr ~-A-a pV.(~{, ~~.s 7,B.£y L~ft sit~ ",1 1457 L...-________ ....JIDo not touch this cell (SheetName) White Mesa Mill "Field Data Worksheet for Groundwate"r N D D D ~ D Itt 2 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) ATTACHMENT 1 Attachment 1 1--:' See instruction I OENISONI)~ ~ i MINES FIELD DATA WORKSHEET FOR GROUNDWATER WHITE MESA URANIUM MILL Description of Sampling Event: 1'3«11 Q v'-cu-te(' &'-OUo.Yld. W()..t<(" ~o, I Location (well name): .... 1 _fVl_W_-3_1 ________ ---' Sampler Name and initials: I ~rlrler Holl;l~/T/t Date and Time for PurgingJ ....... ....;;;.f!......;/:;)...'-'-"/:J.'-O_'_l ____ --' and Sampling (if different) ,N'/A '---~~-----~ Well Purging Equip Used: []!]pump or@] bailer Well Pump (if other than Bennet) Sampling Event I Qv.Q.Au l,:1 &W Prevo Well Sampled in Sampling Event .... 1_M_W_-_3_~ ____ ---, pH Buffer 7.0 7.0 pH Buffer 4.0 11.0 Specific Conductance ....... 1 ----,q'-!.q....:....q __ ---'If-lMHOSI cm Well Depth(O.Olft): 1130.DO Depth to Water Before Purgin~ G3 .9Q Casing Volume (V) 4" well:1 ~j .87 1(·653h) 3" Well: 0 (.367h) L....-__ ---' Conductance (avg) l,\ \4 L--_~~ ____ --' pH of Water (avg) boo b(. L.-....;;;.~ ______ ~ Well Water Temp. (avg) I } 5 .5) Redox Potential (Eh)1 l{5-'. Turbidity lL...:6=--__ ~ Weather Condo Ext'l Amb. Temp. O( (prior sampling event)1 11 0 Time 113 SS I Gal. Purged I 7,,\.;2.0 I Time 1135b I Gal. Purged I ..., q .. y~ I Conductance I l~ IS I pH I ~.b5 I Conductance I l~ 14 I pH I b-bEl I Temp.oC 1 )5.5:1:: I Temp.oC I IS.~ I Redox Potential Eh (mV) 197d-. I Redox Potential Eh (mV) I 957 1 Turbidity (NTU) I 0 I Turbidity (NTU) I 0 I Time 11357 I Gal. Purged 1]9. (.3 I Time 113Sg 1 Gal. Purged 111. $5 1 Conductance 119 n; I pH I b.bC I Conductance IIq13 1 pH 1 G.6J 1 Temp.oC 1 /5.51 I Temp.oC 115.Y1 1 Redox Potential Eh (mV) 1 9:$0 I Redox Potential Eh (mV) 1 yqg 1 Turbidity (NTU) I (5 I Turbidity (NTU) I (5 I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I 80. ;2,9 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = IL..-...,.;;,' ;)._17""'-_--' gallon(s) Time to evacuate two ca 'ing volumes (2V) T=2V/Q= I 3 ~7,~g I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Labf A\JAL \ .sd' oJ' oJOC.s Sample Taken Sample Vol (indieate Filtered Preservative Preservative Type of Sample if other than as Type Added y N specified below) y N y VOCs 6!1 0 3x40 ml 0 ~ HCL 1St Nutrients ~ 0 100ml 0 121 H2SO4 ~ Heavy Metals ~ 0 250ml ijI 0 HN03 181 All Other Non Radiologies [] 0 250ml 0 ~ No Preserv. 0 Gross Alpha Il 0 1,000 ml rn 0 HN03 129 Other (specify) [lI 0 Sample volume 0 ~ 0 &c,,((~\ :rf'\or~~p,n ~(.~ If preservative is used, specify Type and Quantity of Preserv ati ve: See instruction Comment Arri\J~~ on Sift oJ 07~S.-ro..nner ()J'Ij, G-o.rr;fl pr",k/rf .for plAr~( IJ"fjJ. .s~/VIpl"'j ~1JC!nf. P"'r~~ be~"" "'.) 1154 ?V\~~a ~eJl .for 6... +oi-~' of 37() M:nv-teS. W",+er t.L>c.;.s cJ~4(" ~),(Ddo "J -}1,< p"'r~G. f>",(~V enat~ MJ S~rrJf'<~ LOe(~ coJJ"C+~J "J IYDD. D~pth t. I,;)".I-« ",0er f\M~C ~oJ:, 12,<\5 l..e-tt sife ... t 1'112 '--________ --"Do not touch this cell (SheetName) White Mesa Mill Field D,j'ta Worksheet for Groundwater N 0 0 0 ~ 0 'f:1g 2 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) 1 OENISONI)J J ATTACHMENT 1 WHITE MESA URANIUM MILL Attachment 1 G See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Location (well name):L-1 _M...;..,w_-_3_:l. _________ --' Sampler Name and initials: ~Mler HolI;JIA.!1/1H Date and Time for PLLrgingJ'-.::...'t,/:....::;.~/.....:U)~J-=-' ____ __J Well Purging Equip Used:~pump o@ bailer Sampling Event 1 Q \.J.o.rta'l~ rr \0 pH Buffer 7.0 7 .0 Specific ConductanceL...1 .....::'f...;..94...!-__ ---II!.lMHOS/ cm Depth to Water Before Purgind 7 b. 30 Conductance (avg) YIO\ and Sampling (if different) L.;..I~....;./_A,---_____ ---, Well Pump (if other than Bennet) I QED Prevo Well Sampled in Sampling Event L-I N_1._A ______ .....r pH Buffer 4.0 L\.D Well Depth(O.Olft): I \~.b() Casing Volume (V) 4" well:13b. bCf 1(·653h) 3" Well:L...... _O __ .....I,c.367h) pH of Water (avg) L...1_6_._0 _9 _____ .....I Well Water Temp. (avg) 1 15. )S Redox Potential (Eh) ,-,I 2_/q-'--_---' T ur bidity L.....11_b_-..;..1_---' Weather Condo Ext'l Amb. Temp. ·C (prior sampling eventll lq6 Time 1 130D I Gal. Purged 1 ,;).... f,q I Time I l~OI I Gal. Purged 17.;2..91 I Conductance I :10gb I pHI b.ID I Conductance I ~1D3 I pH I b.O? I Temp.oC I 15 ·/'-1 I Temp. DC 1 lS.)3 I Redox Potential Eh (mV) I Zl~ I Redox Potential Eh (m V) 1..22.1 1 Turbidity (NTU) 1 lb·z I Turbidity (NTU) Llb.'1 I Time 113o,;t I Gal. Purged I ]"'>·1~ I Time 113 03 I Gal. Purged 1 733LJ I Conductance 1 il Q~ 1 pH 1 b.D'l I Conductance 1 gll~ I pH 1 b.IO I Temp.oC 1 )~ 17 . I Temp. DC 1 )5 .jg I Redox Potential Eh (mV) I ;2..18. 1 Redox Potential Eh (mV) 121' I Turbidity (NTU) I l~·~ I Turbidity (NTU) 117.1 I White Mesa Mill Field Data Wci"rksheet for Groundwater . 1 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1 73.7g gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 1 . :;2.11 Time to evacuate two casing volumes (2V) T=2V/Q= 1 33<6 .~ I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Labl,-~_IA _______ --, Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y VOCs 0 0 3x40 mI 0 0 HCL 0 Nutrients 0 0 100mI 0 0 H2SO4 0 Heavy Metals 0 0 250 mI 0 0 HN03 0 All Other Non Radiologics 0 0 250 mI 0 0 No Preserv. 0 Gross Alpha ~ 0 1,000 mI !l 0 HN03 ~ Other (specify) 0 0 Sample volume 0 0 0 If preservative is used, specify Type and Quantity of Preservative: Comment G See instruction Arr:\lG~ on ~i+e ~.} 07;l). ""l&..lInc. ... ",,,J. &Mr;n P"'~'!'<:"-+ -tor pv.l'jt' o..t'\J. ..s<1\tVJpJ~':j e\l~r'I-}. Pu..(~(: bG~o.n td 0/25_ P\"\(JeJ Well ~r 0\ -to+¢.l of' 3'1D M 'lnlA+~) WGL'tc, hlA.~ \J~r~ 1 ;i+l c Golcr",to'1 Mo.sJh cko.r ~ Pv.r~ C eYlJeJ ~t/d ~~(Vlp)e WCA.S c. ,11c::c·h J 0\1 )30,!)'. f)c:p1-~ fa wo..+CI' 4.+-h:r purde WG\-S ~J..5{) Left S:+-G t?J \307 '--________ ...JIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 0 0 0 2 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) I OENISOJ)J ~JI ATTACHMENT 1 Attachment 1 WHITE MESA URANIUM MILL See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 1 '3,rli Q",~A'"G(" G-rouf\A \NfAta -:lOll Location (well name):L..1 ....;.M_W_-.....;~::.....-:.....-_______ ---I Sampler Name and initials: I 'i*An"~r HolI .-J'S1.fn1 Date and Time for Purgin~ ~J~O /:;"DII and Sampling (if different) lL-fJ_·....:.1 Pr-'--_____ ----' Well Purging Equip Used: [QJ pump or@] bailer Sampling Event 1 Q~o..r·h.rW & \J pH Buffer 7.0 L-I _7..!..-'-. O ___ .....J Specific ConductanceL-1 ..... '1w..q3..L--__ --I1 !J,MHOSI cm Depth to Water Before Purgingf 7b. \0 Conductance (avg) g \\ I Well Pump (if other than Bennet) IQED Prevo Well Sampled in Sampling Event L..I_M_~_~ ______ --I pH Buffer 4.0 '1 .0 Well Depth(O.Olft): 1 \3~50 Casing Volume (V) pH of Water (avg) 4" well:1 3b.~ 1(·653h) 3" Well: C5 (.367h) "-------' Well Water Temp. (avg) I IS. b~ Redox Potential (Eh)1 ~Dfo TurbiditYL-1 _g_.O __ ..... Weather Condo Ext'l Amb. Temp. °C (prior sampling event)II-I_';o_---J Time 1 )30D 1 Gal. Purged I Z~ .'i)o 1 Time 1 1301 1 Gal. Purged 1 & 7. 0 ) 1 Conductance 1 YIOb 1 pHI b.~1 1 Conductance 141'0 1 pHI b·~J 1 Temp. DC I 15 ·105 1 Temp. DC I 15.7/ 1 Redox Potential Eh (mV) lQ:06 1 Redox Potential Eh (mV) I 2.ok) 1 Turbidity (NTU) I g ·l I Turbidity (NTU) I Is·O I Time I 1'30:2.. 1 Gal. Purged I fb,7.23 1 Time 1130 ') 1 Gal. Purged I 37. 'is I Conductance 1 :lIO,! 1 pH 1,==-.2,1 1 Conductance 1 ~~I~ 1 pH 1 b·~O 1 Temp. DC I IS.I:~ 1 Temp. DC I ls .yg I Redox Potential Eh (mV) 1 ?-D7 1 Redox Potential Eh (mV) I )..,07 1 Turbidity (NTU) I g.O 1 Turbidity (NTU) 1 ;S . ~ 1 White Mesa Mill Field Data Worksheet for Groundwater 1 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged' <b -, , 't{6 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 'I-' ~_n"":"""-_-I gallan(s) Time to evacuate two ca ing volumes (2V) T = 2V/Q = 1334. LJ'3 I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy LablL-,.J,_'1_A:....-______ -.J Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y VOCs 0 0 3x40 ml 0 0 HCL 0 Nutrients 0 0 lOOml 0 0 H2SO4 0 Heavy Metals ~ 0 250ml "f] 0 HN03 "EI All Other Non Radiologics 0 0 250ml 0 0 No Preserv. 0 Gross Alpha ~ 0 1,000ml 'EI 0 HN03 1ll Other (specify) 0 0 Sample volume 0 0 0 If preservative is used, specify Type and Quantity of Preservati ve: See instruction Comment A((':\lGo.. 0" >i-t~ oJ obl5 . -'-;'nne.( An~ (ro..1'(';" ?rl.~ent .to'( ?\Ar~<.. ~fla S(i,.fV'\f ):.:J e.very\-. ?v..r!!j~ h~~~f\ ""-\-Ob~O. 'Pu..r~~~ w ell .to(' 0--·tc,tA,\ tR licS ~I"II.""+~S . \,Uf),,-te(' wo..~ Mo~t~'\ LI~G\(' thro~hov...\-?v.r~(.. ?w~t:.-el'lal!:~c::A '\",J. ,)aMple lA)~ (,o\\Gd'<-~ "t-1~()5 . LA .> ;+c:. u.1-13()~. D-epth +0 W",-\c.r o.+t<r p"'r~~ ",aS. '60.71 L-________ -IIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksh"eet for Groundwater N 0 0 0 0 0 0 Mill .. Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) ATTACHMENT 1 , OENISONI)~ ~ WHITE MESA URANIUM MILL Attachment 1 [I' See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 13 r 0; Q V\.CA,.+ec-G-rov.F1 J. w",+c.(' 2.0\ I Location (well name):L-1 ...;""_W_-_~~ ________ --, Sampler Name and initials: fi~l1er Ho ));J"'j/..,..H Date and Time for Pllrgi ngjL-~;::.;/:..;;;;"...!./_;2.._0_1_J ____ -' and Sampling (if different) I /oI/A ~~--------~ Well Purging Equip Used: [![]pump o@bailerWellPump(ifotherthanBennet) L-I_Q_E_D ________ --' I MW-3J Sampling Event IQ~Q.rtt:,.lj (,.. \V Prevo Well Sampled in Sampling Event L-______________ ----l pH Buffer 7.0 7.0 Specific Conductance 1 I... _q....;..~...:...~ _____ --'I f-tMHOS/ cm Depth to Water Before Purgind 11.;l..'1d. Conductance (avg) pH Buffer 4.0 l..\.O Well Depth(O.Olft): 11;2.4..50 Casing Volume (V) pH of Water (avg) 4" well:1 7.f<8 1(·653h) 3" Well:L.... _o~_--'.(.367h) Well Water Temp. (avg) I 15.33 Redox Potential (Eh) ..... 13_1 0 __ ....... Turbidity 1...1 _0 __ --' Weather Condo Ext'l Amb . Temp. O( (prior sampling event)1 ~1' Time 11 Y,:1.S I Gal. Purged I \S.lQ I Time 11 4:2.-" I Gal. Purged 115. LJ 0 I Conductance 1 L~~~\ I pH 1 b.:;l L] I Conductance 1 L133d-.. I pH I 6..25 I Temp.oC I lS.3D I Temp.oC I )S·3Et I Redox Potential Eh (mV) I 319 I Redox Potential Eh (mV) I ~J::l.. I Turbidity (NTU) I (':1 I Turbidity (NTU) L () I Time II L\;l.7 I Gal. Purged 1 1S.b~ I Time 119.2}, I Gal. Purged I 1:.5:· g~ I Conductance 1 t.\3~3 I pH I (".;2.5 I Conductance I ~~4 I pH I b.65 I Temp.oC I 1OS .$ I Temp.oC I 15.35 I Redox Potential Eh (mV) I '301; I Redox Potential Eh (mV) I :365 I Turbidity (NTU) I b I Turbidity (NTU) I Q I White Mesa Mill Field Data Worksheet for Groundwater 1 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged IL.......1.J:::.fo.:..s., ¢;:::.,7!....-...._----I Pumping Rate Calculation Flow Rate (Q), in gpm, S/60 = I . 'J..17 gallon(s) Time to evacuate two casing volumes (2V) T = 2V/Q = I 1;;. .70 I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab1 A\J~L Sd of vOG~ Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y N VOCs ~ 0 3x40 ml 0 rJ HCL tiiI 0 Nutrients [) 0 100ml 0 I)-H2SO4 I:zt 0 Heavy Metals I:j 0 250ml BJ 0 HN03 ~ 0 All Other Non Radiologics [] 0 250ml 0 j)?:I No Preserv. 0 or Gross Alpha [] 0 1,000 ml rn 0 HN03 ~ 0 Other (specify) rn 0 Sample volume 0 ~ 0 IX' Cr<..n<.r",\ i"Y10(~"",,"0 If preservative is used, specify Type and Quantity of Preservati ve: See instruction Comment '--________ ..... IDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Attachment 1 ATTACHMENT 1 I OENISOJ)~~ MINES FIELD DATA WORKSHEET FOR GROUND WATER WHITE MESA URANIUM MILL See instruction Description of Sampling Event: 13i"(X Q\N).d~( G f"Ou,l1a: Wt;..+C'(?.01I Re...5Go-~p k Location (well name ):L-I _fJ\_W~--=3::"':~==-----_______ ---I Sampler Name and initials: tr;nne.r 'Ao 1\; JObd htl Date and Time for Purginm fS/'3o 7 ~) \ and Sampling (if different) IL-#_I..;...,. ______ ---' Well Purging Equip Used: [IDpump o@ bailer Well Pump (if other than Bennet) IL-Q_-e.=D::.....-___ ---' Sampling Event IQu,,,,,...+"COrb G-w Prevo Well Sampled in Sampling Event L...1_M_W_-_:;;2._b ____ --' pH Buffer 7.0 7.0 pH Buffer 4.0 \..\.0 Specific ConductanceL-1 _~...:..'1_'.J..-__ ....J1 /-tMHOS/ cm Well Depth(O.Olft): 11.2. 4.SO Depth to Water Before Purgingj 11;2... ~O Casing Volume (V) 4" well:1 g.03 1(·653h) 3" Well: () (.367h) '---------' Conductance (avg) I,-L_/~--,Gf-,-! _____ -, pH of Water (avg) Well Water Temp. (avg) I Ib.l ~ Redox Potential (Eh)1 ;;... Y7 Turbidity 1'---0-'--_---1 Weather Condo Ext'l Amb. Temp. °C (prior sampling event)! U" Time 1 1L\W I Gal. Purged I lb.~7 I Time 11Q:51 I Gal. Purged 11 '==>. q q I Conductance ! '-\;2..QS I pH I b.3'f I Conductance ! Y287 I pH I b.LlO I Temp.oC I lC.7'5 I Temp.oC 11G>:;215 I Redox Potential Eh (mV) I ;2b1 I Redox Potential Eh (mV) 1 ,7.41 I Turbidity (NTU) 1 0 1 Turbidity (NTU) I 6 I Time Ilq3~ I Gal. Purged I lb,jCi I Time I I ~SJ I Gal. Purged 1 I~.q:< I Conductance 1~2JS ~ I pH I <0.'""15 I Conductance 1 9~~g I pH 1 b .YO I Temp.oC I 16. \j I Temp.oC 1 \, ,IS I Redox Potential Eh (m V) 1 ?,.Q1; I Redox Potential Eh (mV) p::qs I Turbidity (NTU) 1 0 I Turbidity (NTU) I CJ I White Mesa Mill Field Data Worksheet for Groundwater 1 of2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I \ 7 . .3 b Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = I . :l.17 gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= 17Y .O.;2.. I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab~L.._/J._Y,_~ ______ ----J Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) y N Type y VOCs 0 0 3x40 ml 0 0 HCL 0 Nutrients 0 0 100mI 0 0 H2SO4 0 Heavy Metals lB 0 250mI "f] 0 RN03 ~ All Other Non Radiologies 0 0 250ml 0 0 No Preserv. 0 Gross Alpha ~ 0 1,000 ml 19 0 RN03 I!1 Other (specify) 0 0 Sample volume 0 0 0 If preservative is used, specify Type and Quantity of Preservative: See instruction Comment An"';v~~ on ~1"C:: ,,1 '~l:;l.. ~nnt:r AnfA 6-Q..(t";n f'fe.5t'I1+ ~r ?\.t.~c: tA.'r)J., S"~p 1;0 evcn-t· P\A('~~ be~t)," ~1-)31S. P\J\<~c~ v:>el\ ~r ~ -to+l'I.\ or go YYJ ;nLAt~>. ~&..·h.r wo....S cl~c" ... th(O~h()v..r t~e ?v..(~e: . t'v\r~e. endc~ o..",~ 5CA Mp Je v.)l.\S L6 ll~c.te~ ,d-ILI35. L-e,.\1-~~tt:. ("'1-\1..\3'1. \-:J cpth 1-0 ~~1c( lA.\l-e( 'P\.\(~~ LU",.s IJ3 .00 '---________ ....JIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 0 0 0 2 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance plan (QAP) ATTACHMENT 1 I OENISOJ) ~ I WHITE MESA URANIUM MILL Attachment 1 r.-See instruction MINI:S . FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 13 1'3\ Q~", .. +e.r GTol..I.f\fX W", fer ;2.0/1 Location (well name):1-1 ;....M.;...VJ~-..;;;3;....;b~ ________ ---' Sampler Name and initials: Date and Time for Purging\'--'S/_'1....;,I_9-_o_" ____ ----I and Sampling (if different) Well Purging Equip Used: []]pump o@ bailer Well Pump (if other than Bennet) Sampling Event 1 ~ ",o,..}e('~ (,. \0 Prevo Well Sampled in Sampling Event I-I_M_W_-_5 _____ -J pH Buffer 7.0 7.0 pH Buffer 4.0 Y.O Specific Conductance .... 1 q...:..~~'1.:.-__ ---,1 f,lMHOS/ cm Well Depth(O.Olft): ..... 11a..==---I._b_O __ --' Depth to Water Before PUTgi nm 110. \oj b 4" well:17,;;"7 1(·653h) 3" Well: 6 (.367h) 1---..:.....-----' Casing Volume (V) Conductance (avg) 3bl.l~ pH of Water (avg) b.S& Well Water Temp. (avg) I lb./~ Redox Potential (Eh) I 3Cft Turbidity IL.......:O'---_---' Weather Condo Ext'l Amb. Temp. DC (prior sampling event)I~~O Time 11145 I Gal. Purged I 13.87 I Gal. Purged I..'2.Y.Og Conductance 1 3b'-\.~ I pH I b.b~ I Conductance 1 3& 0 .1 pH I ~.5 7 Temp.oC I I{;. 7~ I Temp.oC I lb .80 Redox Potential Eh (mV) I 315 I Redox Potential Eh (mV) 1 ...... 3_'_0 __ -, Turbidity (NTU) I D I Turbidity (NTU) I () I Time IllY ' I Gal. Purged I !2.'1 :~() I Time I II Y IS Gal. Purged I Q ~ .52. Conductance I 'S~~.D I pH 1<:).5'1 I Conductance I 3b \.:t pH I 6.5 7 Temp.oC I lb.1Q I Temp. DC I It> ·81 Redox Potential Eh (mV) I ;'08: I Redox Potential Eh (m V) I ...... j_b_g~_-I Turbidity (NTU) I 0 I Turbidity (NTU) o White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1 ?-LJ.'l5 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 1-1 _" _2 _1, __ --' gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= 1 f,1.oy 1 Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy LabM·WA L 1 S~+ ~ \JOc.~ Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) y N Type y VOCs ~ 0 3x40 rnl 0 ti(] HCL ~ Nutrients l1 0 100ml 0 18 H2SO4 ~ Heavy Metals III 0 250 rnl 'g) 0 HN03 ~ All Other Non Radiologics rlI 0 250 rnl 0 1tl No Preserv. 0 Gross Alpha IE 0 1,000 rnl ~ 0 HN03 ~ Other (specify) E 0 Sample volume 0 119 0 (,.LY\cr" \ :I" or ~(An; c.~ If preservative is used, specify Type and Quantity of Preservative: See instruction . , Comment Arri\lt!.d on s*~ 0.+ ot\~. -reM"C( ,,,,.ld. &Mr:n rr e:>C:frr ~r ? ur~c: ~(lJ. S~t'lfJ:"j eU'111. PIA%c: 1C=S~t1 ",t 0<\55 . l\ ... r~t~ \J:)cll for' f\. -tok\ or 11..5 P,;hll':\<:5.. \,J(;\.1-cr v:>a.~ C)t'tir +h(o\)~o\J.} the ?W~C., PU.(~'C c::nJt'~ ~n~ S ~r-I\p\r~ W(.(~ l:ollC"Lh·J ~1-1150. Ocp1'\, to \.0cJer ~Q-if ?U.('~c. W4~ 11.?3}. t~f} ~;1'C ~J" 120;;J.. . L...-________ ~IDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 1Q 0 1[J 2 of2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Attachment 1 ATTACHMENT 1 I OENISOJ)J~ WHITE MESA URANIUM MILL See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 13.,..4\ Qv..."'rf~, G-roun a Wo..t:r ~Q 1\ Location (well name):L..I .;...M_W_-_~_7 _________ --, Sampler Name and initials: I~nncr Bo)/'';;l"..j l-rlt Date and Time for Purging/L-g....;.I_'1'-I_;l.._O_" ____ -' and Sampling (if different) l'-s.;;;...:...,.J _J1_/.a_o_/J ____ --' Well Purging Equip Used: [QJpump o@ bailer Well Pump (if other than Bennet) ,-I .:...;/II~/,Ilu--____ --, Sampling Event I Qv.GI.;:+~dj Gw I ~W-3{ Prev. Well Sampled in Sampling Event '-_______ -" pH Buffer 7.0 7.0 pH Buffer 4.0 4·0 Specific Conductance .... 1 _~..:...~...-~,---__ --,I/lMHOSI cm Well Depth(O.Olft): 1 J;t L go Depth to Water Before Purgingj J 1 ~. 35 Casing Volume (V) 4" well:1 5. gL-f 1(·653h) 3" Well: 0 (.367h) '---------' Conductance (avg) pH of Water (avg) Well Water Temp. (avg) 1 \6·'13 Redox Potential (Eh) 1 1-\ D~ Turbidity I )74.10 Weather Condo Ext'l Amb. Temp. O( (prior sampling event)1 ~8 b Time 11"-\'35 I Gal. Purged 1 5 I Time I I Gal. Purged I I Conductance I L17J"b I pH I ~.:?~ I Conductance I I pH I I Temp.oC I Ifo·9:; 1 Temp. DC I 1 Redox Potential Eh (mV) I rtO ~ 1 Redox Potential Eh (m V) I I Turbidity (NTU) I I ] 9.1; 1 Turbidity (NTU) I I Time I 1 Gal. Purged I 1 Time I I Gal. Purged I 1 Conductance I 1 pH I 1 Conductance I I pHI 1 Temp. DC I I Temp. DC I I Redox Potential Eh (mV) I I Redox Potential Eh (mV) I -I Turbidity (NTU) I 1 Turbidity (NTU) I 1 White Mesa Mill Field Data Worksheet for Groundwater 1 of2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1 S.OO Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 1-1 __ 0 __ -' gallon(s) Time to evacuate two ca ing volumes (2V) T=2V/Q= 1 6 I Number of casing volumes evacuated (if other than two) 1 ].3b If well evacuated to dryness, number of gallons evacuated 1 g, DO Name of Certified Analytical Laboratory if Other Than Energy LabjAW,q L 1 ~c:f err \JO(.:) Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) y N Type y N VOCs f] 0 3x40 ml 0 ~ HCL l!I 0 Nutrients ~ 0 100ml 0 ~ H2SO4 t:I 0 Heavy Metals ftl 0 250ml 113 0 HN03 ~ 0 All Other Non Radiologics ~ 0 250ml 0 ~ No Preserv. 0 ~ Gross Alpha 1$1 0 1,000 rnl ~ 0 HN03 ~ 0 Other (specify) lEI 0 Sample volume 0 l!sI 0 M r;.~r\<:'(()' \ :rt10(~o.r1\ G~ If preservative is used, specify Type and Quantity of Preservative: See instruction Comment A((';"e-A on ~i+c: 6.:t 1l.J );2.. -r;::nflC'r IMA &(;.U;fl prc!~cn+ -:to 00.: I M I.U -37~ 'BP.:J~ h~"t7 o..t )417, l3,(At~a u-Ill-;/ \0e f;lI~a ",..5 ~A.I}D" Je,lAL~(t .f"\A/I. 'Ioo\..< I Scf of' PGlt'C\rtletcr.s S.}/a./~h}­ ov.~ of the bu.tkd-. "CrY)p+H~c\ b\A(l.<d" l1\n~ bll\:lcJ 3 More Cre;}/oflS . fS'I ;Jd ueJJ c;\~~. ~~tc( stfAdcJ. ()\).f (.l«().(, ~of eX ,;±! tI.s LUG ~:~v.rl71:~_ LG~ ~ ,·1-G t?-t J Y4; . It,.,.. lJe6 on 5..+e:. aI.+ o~,o . IMIlU MJ. 6-~(( JI procI1t +0 (oll~C+ .so.mpJ-(..s. p~ I"~~ +0 l.o)~hr 14l4.s );to .00 . s..()."'lpJ(~ Were h()l ;l~~ ",1 08IS . L~+t .sih .;oj o~. \..J~.J.('"r r,.)e.-S J irl-!j ~ L-_______ ---II Do not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) ATTACHMENT 1 I OENISOJ)~~ WHITE MESA URANIUM MILL Attachment 1 k~ See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 13ra Q",c;.d'.a &rOlAnJWo..t'l:f ;lO\l Location (well name ):11..-L8 ...... \N...;......-_b;;c0=--________ --' Sampler Name and initials: I ~nnt:r H oll ;J4~/nl Date and Time for PurgingJ ..... -=g..:...;/3;:;..L.:/~;.....;;....I_J ____ -" and Sampling (if different) AI/A-~~~-----~ Well Purging Equip Used:l]I]pump o@ bailer Sampling Event Q",L\rh·r1j (,.W pH Buffer 7.0 1.0 Specific Conductance 11-......-'4L...:~....L~ ___ ...JII-lMHOS/ cm Depth to Water Before Purging/ 7 D .7 b Conductance (avg) Well Pump (if other than Bennet) Prevo Well Sampled in Sampling Event .... I_M_W_-_~ _____ --' pH Buffer 4.0 Well Depth(O.O 1 ft): I l~1.33 Casing Volume (V) 4" well:1 33.0;l.. 1(·653h) 3" Well:\-. _o __ ~.(.367h) pH of Water (avg) IL....'_· O_7'---____ ----J Well Water Temp. (avg) 11 s. 6J-Redox Potential eEh)1 L\o~ TurbiditylL....-6 __ ----' Weather Condo Ext'l Amb. Temp. O( (prior sampling event)1 ~O· Time I I Gal. Purged I I Time I I Gal. Purged I I Conductance I I pHI I Conductance I I pHI I Temp.oC I I Temp.oC I I Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I Turbidity (NTU) I I Turbidity (NTU) I I Time I I Gal. Purged I I Time I I Gal. Purged I I Conductance I I pH I I Conductance I I pH I I Temp.oC I I Temp.oC I I Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I Turbidity (NTU) I I Turbidity (NTU) I I White Mesa Mill Field Data Worksheet for Groundwater 1 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged L-I __ 0 ___ ----' gallan(s) Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 11.....-___ --' Time to evacuate two casing volumes (2V) T=2V/Q= 1 0 1 Number of casing volumes evacuated (if other than two) o If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Labl !fwA l s-et of \Joc..5 Sample Taken Sample Vol (indieate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y N VOCs ~ 0 3x40 ml 0 Gil HCL 181 0 Nutrients 0 0 100 ml 0 ~ H2SO4 r8 0 Heavy Metals r, 0 250ml IS!I 0 HN03 [2J 0 All Other Non Radiologies ~ 0 250ml 0 ~ No Preserv. 0 ~ Gross Alpha lSil 0 1,000 ml ~ 0 RN03 ~ 0 Other (specify) [] 0 Sample volume 0 Ij. 0 ~ CreY\e.(oJ :rJ\O(~(M'; c..s If preservative is used, specify Type and Quantity of Preservati ve: Comment r See instruction ,-________ ...... 1 Do not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) ATTACHMENT 1 OENISONI)~ ~ WHITE MESA URANIUM MILL Attachment I C;. See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER D~scription of Sampling Event: I 3r~ Q;"'rter G-rOv.nJ Wo.."f~(" ::to II Re..so.Mf1-<. Location (well name):II--___ M_W_----=:I~ _______ __' Sampler Name and initials: I -rcMnt." »olll'J~/-rJf Date and Time for Purgin~ ~J3D/~11 and Sampling (if different) N/A Well Purging Equip Used:OOpump or@] bailer Well Pump (if other than Bennet) Sampling Event Q\)..(Art~(&1 trw I ~W -1y Prevo Well Sampled in Sampling Event '-_______ ----' pH Buffer 7.0 pH Buffer 4.0 1..1.0 Specific ConductanceL..1 ----"q:....:.~...!.q ___ -II /-tMHOS/ cm Well Depth(O.Olft): 11;1.). 3~ Depth to Water Before Purginm 7fo. is I Casing Volume (V) 4" w ell:1 ~q .0"7 1(·653h) 3" Well: t::> (.367h) '-------' Conductance (avg) 3b 14 pH of Water (avg) Well Water Temp. (avg) 1 1(;...57 Redox Potential (Eh)1 41Y Turbidilyl,-_o __ -, Weather Condo Ext'/ Amb. Temp. DC (prior sampling event) 1 ~yo Time I I Gal. Purged I I Time I I Gal. Purged I I Conductance I I pHI I Conductance I I pH I I Temp. DC I I Temp. DC I I Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I Turbidity (NTU) I I Turbidity (NTU) I I Time I I Gal. Purged I I Time I I Gal. Purged I I Conductance I I pH I I Conductance I I pHI I Temp. DC I I Temp. DC I I Redox Potential Eh (mV) I I Redox Potential Eh (m V) I I Turbidity (NTU) I I Turbidity (NTU) I I White Mesa Mill Field Data Worksheet for Groundw'ater 1 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 11..-_....;;.0 ___ --' Pumping Rate Calculation Flow Rate (Q) in ~pm. S/60 = L-I __ (0_, r> __ -, gallon(s) Time to evacuate two ca iog volumes (2V) T=2V/Q= 1 D 1 Number of casing volumes evacuated (if other than two) 0 L--___ ---' If well evacuated to dryness, number of gallons evacuated 0 L--___ ---' Name of Certified Analytical Laboratory if Other Than Energy LabIL----=:..I"'_/~A_=__ _____ _.I Sample Taken Sample Vol (indieate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y N VOCs 0 0 3x40 ml 0 0 HCL 0 0 Nutrients 0 0 100ml 0 0 H2SO4 0 0 Heavy Metals I:J 0 250ml m 0 HN03 IE 0 All Other Non Radiologies 0 0 250ml 0 0 No Preserv. 0 0 Gross Alpha C» 0 1,000 ml III 0 HN03 III 0 Other (specify) 0 0 Sample volume 0 0 0 0 If preservative is used, specify Type and Quantity of Preservati ve: See instruction Comment L-________ -II Do not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater "2of2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) ATTACHMENT 1 Attachment 1 k See instruction , IOENISOJ) J,I MINES FIELD DATA WORKSHEET FOR GROUND WATER WHITE MESA URANIUM MILL Description of Sampling Event: 1 ~('a; Q\AlArh (" &rou.." OJ WlA..+~r ;2..0 /I Location (well name):L-1 _M_W_-_7_0 ________ ----I Sampler Name and initials: 1-r6.I)}1U lJoll/d'\;j/lIJ Date and Time for Purgingj ~/lol ;)..0/1 and Sampling (if different) .I'-"/A L--_______ ~ Well Purging Equip Used: [![Jpump or@] bailer Well Pump (if other than Bennet) IL--Q_~_D ____ -.J Sampling Event 1 Q \1\v-r+CI"t1 &W Prevo Well Sampled in Sampling Event I Jv\ l.\)-37 pH Buffer 7.0 7.0 pH Buffer 4.0 Specific ConductanceI-I ----"1_&f-L9 ___ .... I~MHOS/ cm Well Depth(O.Olft): 113Y.O() Depth to Water Before purgind -, 0 .:lS 4"well:1 LJI.(.Q\ 1(·653h) 3" Well: 0 (.367h) L...--__ ~ Casing Volume (V) Conductance (avg) pH of Water (avg) Well Water Temp. (avg) 1 1&.'3 X Redox Potential (Eh)L-I_'3_I_I _-, TurbiditylL...--_O __ -, Weather Condo Ext'l Amb. Temp. DC (prior sampling event)1 IB 6 Time 1 I Gal. Purged 1 I Time I I Gal. Purged 1 I Conductance I I pH 1 I Conductance I I pHI I Temp. DC I I Temp. DC I I Redox Potential Eh (mV) I I Redox Potential Eh (m V) I I Turbidity (NTU) I I Turbidity (NTU) I I Time I I Gal. Purged I I Time I I Gal. Purged I I Conductance I I pHI I Conductance I I pHI I Temp. DC I I Temp. DC I I Redox Potential Eh (m V) I I Redox Potential Eh (m V) I I Turbidity (NTU) I I Turbidity (NTU) I I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I gY .63 Pumping Rate Calculation Flow Rate (0), in gpln. S/60 = I .?. 17 gallan(s) Time to evacuate two ca ing volumes (2V) T=2V/Q= I 383·{'1 I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy LablL _/V_/----!4 ______ -l Sample Taken Sample Vol (indieate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) y N Type y N VOCs 0 0 3x40 rnl 0 0 HCL 0 0 Nutrients 0 0 100 ml 0 0 H2SO4 0 0 Heavy Metals m 0 250 ml 129 0 HN03 ~ 0 All Other Non Radiologies 0 0 250 rnl 0 0 No Preserv. 0 0 Gross Alpha 0 0 1,000 ml 0 0 HN03 0 0 Other (specify) 1:1 0 Sample volume 0 Il:I 0 ~ S v.. \-r IA+ e.-If preservative is used, specify Type and Quantity of --rD) Preservative: See instruction Comment 0+ MW-J5 '--________ -lIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) I~ ATTACHMENT 1 Attachment 1 OENISO,.!) ~ J WHITE MESA URANIUM MILL I See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 13rA G",o..r+~('" G rOI.).)1 J c::s 0. tc(' ;tD II Re ~GId>')pJc.. Location (well name):L-I __ M_W_-_"l_O ________ ---' Sampler Name and initials: l-ro.nfl-e1" H 011 i ~o...:1/,..tt Date and Time for Purgind a. -'-1-;l.OI / and Sampling (if different) "'/4 ~~~-----~ Well Purging Equip Used:~pump o@ bailer Well Pump (if other than Bennet) L.......;Q~e....;:D~ ___ .....J Sampling Event I Q..J...(Ar 1'er6 c,.W I N"/A-Prevo Well Sampled in Sampling Event L-_______ -" pH Buffer 7.0 7·0 pH Buffer 4.0 L4.0 Specific ConductanceL-1 _~...!..q...:........!.9 __ --I1 /lMHOS/ cm Well Depth(O.Olft): I 13Y.O C Depth to Water Before PurgingJ 7D.:U; Casing Volume (V) 4" well:1 \..1}. '=-2 1(·653h) 3" Well: 0 (.367h) '-------' Conductance (avg) pH of Water (avg) b.31 Well Water Temp. (avg) I HS. g2 Redox Potential (Eh) I l-\ I S TurbiditylL....-_O __ ....J Weather Condo Ext'l Amb. Temp. O( (prior sampling event)1 1"1 II Time I I Gal. Purged I I Time I I Gal. Purged I I Conductance I I pH I I Conductance I I pHI I Temp.oC I I Temp.oC I I Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I Turbidity (NTU) I I Turbidity (NTU) I I Time I I Gal. Purged I I Time I I Gal. Purged I I Conductance I I pHI I Conductance I I pH I I Temp.oC I I Temp.oC I I Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I Turbidity (NTU) I I Turbidity (NTU) I I White Mesa Mill Field Data Worksheet for Groundwater 1 of2' Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I ~ '1 . b '3 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = I . ::L1 7 gallon(s) Time to evacuate two ca ing volumes (2V) T=2V/Q= I :)~3. ~ I I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy LablL..._/V._/....:.../} ______ --I Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) y N Type y N VOCs 0 0 3x40 rnl 0 0 HCL 0 0 Nutrients 0 0 100rnl 0 0 H2SO4 0 0 Heavy Metals ~ 0 250ml ~ 0 HN03 11 0 All Other Non Radiologics 0 0 250 rnl 0 0 No Preserv. 0 0 Gross Alpha 0 0 1,000 rnl 0 0 HN03 0 0 Other (specify) 0 0 Sample volume 0 0 0 0 If preservative is used, specify Type and Quantity of Preservative: See instruction Comment '--________ ....JIDo not touch this cell (SheetName) White Mesa Mill FielcfData Worksheet for Groundwater 2 of 2 TabC Field Data Worksheets Accelerated Monitoring Tab Cl Field Data Worksheets Accelerated Monitoring July 2011 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurarice Plan (QAP) ATTACHMENT 1 OENISONI)~~ WHITE MESA URANIUM MILL Attachment 1 ~ ~ See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I 0" u..1~ f'l\on+hGl &ro u,,(\t\ vJo.."tGf"" :to II Location (well name):L-1 _M_W_-_l_' _________ ---' Sampler Name and initials: tw-Ylr1 e.r Hollr·f.Xt:t~ /-r'H Date and Time for Purgingj1....7_I,-b_1 J).._o--'Il'--___ -' and Sampling (if different) 1-1 _fJ_I_A ______ .....I Well Purging Equip Used:~pump o@ bailer Well Pump (if other than Bennet) ,-I Q_t::_D ____ ---' Sampling Event I MonfhS &-w pH Buffer 7.0 7.0 Specific ConductanceL-1 _Q--'9'-9 ___ -'IIlMHOS/ cm Depth to Water Before Purgin~ '6$.95 Conductance (avg) ~qD7 Prevo Well Sampled in Sampling Event I M W -1 L\ pH Buffer 4.0 Y.O Well Depth(O.Olft): 1 )30.00 Casing Volume (V) pH of Water (avg) 4" well:1 ?b.~6 1(·653h) 3" Well:,-. _D __ -,.(.367h) I.D3 Well Water Temp. (avg) I 'S. b.5 Redox Potential (Eh) ,-I _<J-'--O __ --' Turbidity ,-I 0 ___ -' Weather Condo 1'-_____ ' _______ ---' . [JOV-cA:j Ext'l Amb. Temp. °C (prior sampling eventll22. 0 Time 11~lb Gal. Purged I (; I. gq Time I 1,9, J I I Gal. Purged I b2-O£: I Conductance pH 17.00 Conductance I ;)..'10b I pHI 7.03 I Temp. DC 1 15.'"73 Temp. DC 1 IS.~ I Redox Potential Eh (m V) 11.--8::;:..'=3_--, Redox Potential Eh (m V) 1 1;l... 1 Turbidity (NTU) 0 Turbidity (NTU) I 0 I Time I 12.1a Gal. Purged 1?7?-..:;:L]' Time 1)2.1 3 I Gal. Purged I b;J.. Y.:J. I Conductance 1 ;2..10; pH 1 7.09 Conductance 1;.L.9 0 B I pH I 7~O7 I Temp. DC IS.GO Temp.oC IIS.CI I Redox Potential Eh (m V) ,-I _9_3 __ ---' Redox Potential Eh (mV) I '1,) I Turbidity (NTU) o Turbidity (NTU) I 0 I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I b;t .13 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = ! . .?-17 gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q = I ).'-17.05 I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab0'WA l setc:r V OG..s Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) y N Type y VOCs IZ:I 0 3x40 ml 0 IN HCL il Nutrients 0 0 100 ml 0 0 H2SO4 0 Heavy Metals IE 0 250ml I!I 0 HN03 I!J All Other Non Radiologics 0 0 250 ml 0 0 No Preserv. 0 Gross Alpha 0 0 1,000 ml 0 0 HN03 0 Other (specify) 0 0 Sample volume 0 0 0 If preservative is used, specify Type and Quantity of Preservative: See instruction Comment A(""(";veb.. 0)'"\ ~it~ c....+ 0121. lo.l'll'l-e.r »o\l ;J.~ ?rc,.s..efl+-+or 'f'l.'.('"j~ 6..r'\~ so.Y"\pl;~ ~\.l~rrt. ?\A(~e.. bejO<l" o..-t 0125. ?lA(~~fd-. \De.1I ~(' ~40 M:Y"lv.~-c.~, \.0~ic( v.:~ c..ko.l +h ro~ov}-fh-G PAr~r ?\Ar~e. enJe~ (At'\tA .5o./'Ylp)CS \.Je(~ c.olJec..+eJ. "'\ + b2..JS L€+t ~ ;tc. lA'+ blJ..O. D e p1i t D \0IA.+cr o..fu ? lA.( ~f 8'J.) J L..-________ .... !Do not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 0 0 0 2 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) ATTACHMENT 1 OENISONI) ~ WHITE MESA URANIUM MILL Attachment 1 I~j See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I \:5"-,,8 No (\fh l,j GO rOu. n Cl Gj ",,+e.r .:to I \ Location (well name):II-...;",.M_W_-_I_LJ ________ ----' Sampler Name and initials: 14"''''nner AomdO,.J::J ITt) Date and Time for PurgingJL--7_/_..5_I_~_O_1,;"..1 ___ --' and Sampling (if different) Al/,A I-~------~ Well Purging Equip Used: [IDpump or@] bailer Sampling Event I Month I~ G-VO pH Buffer 7.0 7.0 Specific ConductanceL-1 _q....:...~j-'--__ -'I~MHOS/ cm Depth to Water Before Purgingj 103. q 4 Conductance (avg) 1L-.:3::;..q-.:....:::3~5J-___ --I Well Pump (if other than Bennet) IL-Q_E.---=D ____ -' I MW-30 Prevo Well Sampled in Sampling Event '--_______ --' pH Buffer 4.0 Y.D Well Depth(O.Olft): I 1~. 70 Casing Volume (V) pH of Water (avg) 4" Well: I 1 b. 1b 1(·653h) 3" Well:L-. __ D_----". (.367h) Well Water Temp. (avg) I 15.573 I Redox Potential (Eh) I .:3 8 Turbidityll--4_1_---J Weather Condo Ext'l Amb. Temp. O( (prior sampling event) 131 ~ Time I )4J5 1 Gal. Purged I ~L\,l:;2.. 1 Time I lgw;: 1 Gal. Purged I ~ Ll. Cj:3 1 Conductance 1 r~A 3'3 1 pHI " ,9-1 1 Conductance 1 3tf)?5 1 pH I b.5D 1 Temp.oC I )? (,6 I Temp.oC I \5.55 I Redox Potential Eh (m V) I 31 I Redox Potential Eh (mV) I 3Z I Turbidity (NTU) I Ll I Turbidity (NTU) I <'1 I Time I lq;)'l I Gal. Purged I ~S.15 I Time I lQ:2.<D I Gal. Purged 13S.31 I Conductance I '3~3b I pH I c:.qs I Conductance I 3~.3{., I pH 1(; .LJ6 I Temp.oC I 17·59 I Temp.oC I 12.'0 I Redox Potential Eh (m V) I ~zj I Redox Potential Eh (m V) I ~j I Turbidity (NTU) I .(J I Turbidity (NTU) I .(J I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev, 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I 35.80 Pumping Rate Calculation Flow Rate (Q), in gpm, S/60= I .2017 gallan(s) Time to evacuate two casing volumes (2V) T = 2V/Q = II qq. 0 I I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab~~_./IJ_'/_A~ _____ ----l Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y N VOCs 0 0 3x40 ml 0 0 HCL 0 0 Nutrients 0 0 100 ml 0 0 H2SO4 0 0 Heavy Metals 0 0 250ml 0 0 RN03 0 0 All Other Non Radiologics 0 0 250 ml 0 0 No Preserv. 0 0 Gross Alpha 0 0 1,000 ml 0 0 RN03 0 0 Other (specify) 0 0 Sample volume 0 0 0 0 If preservative is used, specify Type and Quantity of Preservative: Comment 13 See instruction L..-_______ ----IIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) ATTACHMENT 1 OENISONI) ~ WHITE MESA URANIUM MILL Attachment 1 See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I 'S"'\~ MC>r'\flll~ GfD I.A.liO\ Wo...+~(' 2..0 I I Location (well name):IL P\_W_--.;2.-.,.;;;5~ _______ -, Sampler Name and initials: 1-'-;'(I/1<..r RoJl."Jo.!;1h+1 Date and Time for Purgin~ 71 ~ I 2...0/1 and Sampling (if different) I ~/A '--------~ Well Purging Equip Used: ~pump or@] bailer Sampling Event I Monthl~ Cry.) pH Buffer 7.0 1.0 Specific ConductanceI.-I ~q ...... 44...1-__ --,'~MHOS/ cm Depth to Water Before PurgingJ 7~. b \..\ Conductance (avg) Well Pump (if other than Bennet) Prevo Well Sampled in Sampling Event LI_M_W_-_I_I ____ --I pH Buffer 4.0 q,o Well Depth(O.Olft): 1 115.00 Casing Volume (V) pH of Water (avg) 4" well:1 ;:u.,.3S 1(·653h) 3" Well: 0 (.367h) L..-__ -J b.36 Well Water Temp. (avg) I \5. ~ Y Redox Potential (Eh) 1.-' ...:...;ll'-D __ --' TurbidityI.-' _, ,_5 __ --' Weather Condo Ext'l Amb. Temp. DC (prior sampling event)1 1.:)..0 Time , ';;US I Gal. Purged I (;9.0 1 I Time IluC:. I Gal. Purged ,bY.X) I Conductance I '3>:2.' ~ I pHI ~.30 I Conductance 1 3~J I pH I b-30 I Temp.oC I IS .?-8 I Temp.oC I lS,?,::. I Redox Potential Eh (mV) I III I Redox Potential Eh (m V) I ID~ I Turbidity (NTU) I l.S I Turbidity (NTU) l I·S I Time Il:;2.~J I Gal. Purged I f29 . ~y I Time I J.:2..d.g I Gal. Purged I 6g.b6 I Conductance I ~;L.I~ I pHI b.3 ] I Conductance 1~lg I pH I (;, ~q I Temp.oC I I s,n I Temp.oC IIS .?.l I Redox Potential Eh (m V) I 11 0 I Redox Potential Eh (m V) 1)1 D I Turbidity (NTU) I 1. b I Turbidity (NTU) I \.(. I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I 65.10 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60= I ·2 11 gallon(s) Time to evacuate two casing volumes (2V) T = 2V /Q = I .2 ~6' q 0 I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy LablL..---:...:/\/...:....'1:..:..A ______ -' Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y VOCs 0 0 3x40 ml 0 0 HCL 0 Nutrients 0 0 100 ml 0 0 H2SO4 0 Heavy Metals [B 0 250ml ~ 0 HN03 ~ All Other Non Radiologics 0 0 250 rnl 0 0 No Preserv. 0 Gross Alpha 0 0 1,000 ml 0 0 HN03 0 Other (specify) 0 0 Sample volume 0 0 0 If preservative is used, specify Type and Quantity of Preservative: Comment ,... See instruction l ~.J Ar'r i\J'C,tJ. C(\ ~if<.. ~t o7:J..7. ~I"\nt.r" ~o 11 :J'j j":lr~sc:l'\+ ~r pv.r~'C. tAYlcA .s~Mrl;1I1i\ -e\l<?V\+. ?\A(,~<' b~o..r'\ ",t 07:30 . F\ .... rjet,\ W~J) kor d-... +Dt~) Of 30D M;(llJ\fc.s~ \NC\.{-<;(' vJ~ C,).eo..c Pv.r~'C.. cnd e.c\ tA.flJ.-Stt.Mf)e~ v.Je(~ LDl)e(.l~~ ~+ J23D. Drr-~ -k ~(/ 6(.ficr p\A(~C ~u..s. 7£. bO o L -ctt f, i tc tA.+ )23S- L...-________ ~IDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 0 0 0 2 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) OENISONI)J~ ATTACHMENT 1 Attachment 1 WHITE MESA URANIUM MILL r I See instlUction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 1 vv..\~ Mo;;rthl~ CrrolAr'\~ Wo..+~r 2011 Sampler Name Location (well name):1-1 A~W_-_~:;.....:;...h _________ --J and initials: fiMl'\£r +!oll;~~/T'H Date and Time for Purgingj 71 ~ 1 {)"'OI\ and Sampling (if different) 1-:1 J"I_/:....;,A-=--_____ -' Well Purging Equip Used: IT!] pump or@] bailer Sampling Event ,Mon+n l~ G-W pH Buffer 7.0 Specific Conductance!L--.!.9Q,...:..q ___ -IIIlMHOS/ cm Depth to Water Before Purgingj 7 U, • ~o Conductance (avg) 3Y71 Well Pump (if other than Bennet) Prevo Well Sampled in Sampling Event I-I_M_W_-_;l._S ____ -' pH Buffer 4.0 y.o Well Depth(O.Olft): 11;2.1.33 Casing Volume (V) pH of Water (avg) 4" well:II-_O __ -lI(.653h) 3" Well:. 0 . (.367h) Well Water Temp. (avg) 115.37 Redox Potential (Eh) 1 1 ~n TurbiditylL-Z_1 __ --' Weather Condo Ext'l Amb. Temp. O( (prior sampling event)1 203· Time 1 O,yq I Gal. Purged I I Time I I Gal. Purged I I Conductance I ~L\l1 I pH I 6.35 I Conductance I I pHI I Temp. °C ! )5.37 ! Temp. °C I I Redox Potential Eh (mV) ! 1~1 I Redox Potential Eh (m V) I I Turbidity (NTU) I 2::1 I Turbidity (NTU) l J Time I I Gal. Purged I I Time I I Gal. Purged I I Conductance I I pHI I Conductance I I pHI I Temp. °C I I Temp. °C I I Redox Potential Eh (m V) I I Redox Potential Eh (m V) I I Turbidity (NTU) I I Turbidity (NTU) I I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1-1 __ 0 ___ ----' Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 1 s· C; gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= 1 0 1 Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab~I-_;J_/...;../d ______ ---, Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Type Added y N specified below) y N Y N VOCs fl 0 3x40 ml 0 ~ HCL ~ 0 Nutrients ~ 0 100 ml 0 ~ H2SO4 ~ 0 Heavy Metals ~ 0 250 ml ~ 0 RN03 'EJ 0 All Other Non Radiologies 0 0 250 ml 0 0 No Preserv. 0 0 Gross Alpha ~ 0 1,000 ml ~ 0 RN03 'fg r:J Other (specify) ~ 0 Sample volume 0 e9 ,~ -'KI Ch\oriJ( If preservative is used, specify Type and Quantity of TDS Preservative: See instruction Comment An-~\)~ Con ~;+.:. 6.t 074;t.--r;Y\Y\(r ~oll'oc\:J rrc~~Y\-} iD coIled-s~Mp1~~. loOK I sd-of' ffA(o-.Me.+~rs. WCA.+~r wG...S [.J.c 0.. (. ~G\fYJ pl~ w t: \~ {.oJlcc+cJ 0.+ 0750. le+t-s ;+t:. ~+ 0757. '--_______ ---'IDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of 2 Mill· Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAPj ATTACHMENT 1 OENISOJ)J~ WHITE MESA URANIUM MILL Attachment 1 [-" See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I v~,~ Mon+l1~ G-rov..()dWo..1 ~r ~OIJ Location (well name): ..... 1 _1"1_1.0_-_'3;::....;;..0 ________ ---' Sampler Name and initials: 1-,-;"" n c. f' H 0 J I:J ";1/ry Date and Time for Purgin~L_f~J_=5::;..:/.::;.:J...;.::D::..!1..!..1 ___ ---I and Sampling (if different) .N /.4-~~~-----~ Well Purging Equip Used: [QJpump o@ bailer Well Pump (if other than Bennet) IL........:Q::...;...=E~D=--___ -I Sampling Event MoY\thl~ (,-W Prey. Well Sampled in Sampling Event I MW-3 ) pH Buffer 7.0 7.0 pH Buffer 4.0 Y,Q Specific ConductancelL-_~:.....;g~~ __ -,blMHOS/ cm Well Depth(O.Olft): llO .Oo Depth to Water Before PurgingJ Ib."SS 1 Casing Volume (V) 4" well:1 ?-1.9>Lf 1(·653h) 3" Well: § (.367h) '-----' Conductance (avg) pH of Water (avg) b.b7 Well Water Temp. (avg) 1 j S .Of> Redox Potential (Eh) 1 1 S b Turbidity IO-L.._I __ -' Weather Condo Ext'l Amb. Temp. ·C (prior sampling event)1 :;<g" Time 11195 I Gal. Purged 1 '13.1..\0 I Time Ill~~ I Gal. Purged I Y 3. (. 1 I Conductance I ;).i)C:.8 I pH 1 Co.63 I Conductance I~DbS I pH I ~.77 I Temp.oC I I~.oq I Temp.oC I )!;.O7 I Redox Potential Eh (m V) I IS;;l.. I Redox Potential Eh (mV) I 15L I Turbidity (NTU) I <I I Turbidity (NTU) I L. I I Time IIJ:17 I Gal. Purged I LJ3. &3 I Time 1)1;2£ I Gal. Purged I 4 ~. aS I Conductance I ;l.DC.4 I pHI b.bb I Conductance I ?-o"" I I pH I b.t5 I Temp.oC I lS.07 I Temp.oC I )S· 016 I Redox Potential Eh (m V) I lsg I Redox Potential Eh (m V) I lbl I Turbidity (NTU) I <..1 I Turbidity (NTU) ILl I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1'-_Y'-'~"'-'Y...LIg-,---_----, Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 1,----" ~'--\ ....... J __ __' gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= 1 :;1.0J.3\ 1 Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy LablL..-->l..::tJ~/j,.;A~ _____ --J Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y VOCs 0 0 3x40 ml 0 0 HCL 0 Nutrients (). 0 100 ml 0 OJ H2SO4 LlI Heavy Metals 6-0 250 ml rn 0 HN03 r5J All Other Non Radiologics 0 0 250 ml 0 0 No Preserv. 0 Gross Alpha 0 0 1,000 ml 0 0 HN03 0 Other (specify) 111 0 Sample volume 0 ~ 0 C'n \ 0,') ~e If preservative is used, specify Type and Quantity of Preservative: Comment r-"4 See instruction I ' -? J Afr: vd 0(\ s"'h~ 0..+ ogOD . -r"IHler' i-io )L'd~ ff'{.SCrrl-for p\.\.r~'( /1..(\~ ~(Amp);~ e\Je.Yl+' ? v..f~-<" be.~~f'I a..+ ogos P\AI~~c>. well for "-}O+v..\ 6f ;to.5, M;nv .. ,.i--c:.S. \0~f(( \N~ cko...c Pv..(~e eYlaG~ OI.tlA .sv.(VlP lc~ W-e.rc.. c.o}]"t:c+-c~ 0 .. .1-J JJ 0 D~pth +0 W",:tcr ",ftc( ftA'\( w().~ 7'1.03, L:.+r .s ,1-" ",t-JI.J£, .......... _______ ---IIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 0 0 1St 2 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) ATTACHMENT 1 OENISONI) ~ WHITE MESA URANIUM MILL Attachment 1 W See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I 0 :..-~j PI or1t-h 8 &"1"0 \.An J\ W CA."'\" cr :2:0 II Location (well name):I,-_A_w_-_3_1 ________ -' Sampler Name and initials: I ~rl"Gf' Ho ll'~~/TH Date and Time forPurgingJ,-7--,1,-..E;_/~_D_JJ ____ --, and Sampling (if different) ,/J/A Well Purging Equip Used: ~ pum p o@ bailer Well Pump (if other than Bennet) 1 QED Sampling Event Mon:}l)G 6-W I ;VIA-Prevo Well Sampled in Sampling Event '--_______ ...... pH Buffer 7.0 /.0 Specific ConductancelL....-_9_Q_Q __ ----'lttMHos/ cm Depth to Water Before Purgind bg,79 Conductance (avg) IB33 pH Buffer 4.0 q.D Well Depth(O.Olft): 1 130.0'0 Casing Volume (V) pH of Water (avg) 4" Well :~(.653h) 3" Well:~(.367h) c...c.6 Well Water Temp. (avg) I 15. b~ Redox Potential (Eh) 1 M'8 Turbidity 1,----<....;..,.:.,.1 _----' Weather Condo Ext" Amb. Temp. O( (prior sampling event) I ;l.g 6 Time 11:555 I Gal. Purged I ]C/..2..0 I Time I 13S6 I Gal. Purged 1 7Q. Y2-, I Conductance I lS3~ I pHI 6 .5Y I Conductance I )f{31 I pH Ii;· b3 I Temp.oC I I S.b~ I Temp.oC I IS.b..:> I Redox Potential Eh (m V) I ~ I Redox Potential Eh (m V) I :t;;Z'1 I Turbidity (NTU) I ~l I Turbidity (NTU) I <"1 I Time I 1357 I Gal. Purged I :]~ 1 ~3 I Time I 13 SiS I Gal. Purged I / '9 . gS I Conductance I JBC)o I pH Ie . b:{ I Conductance 11E3;( I pH I b.PI I Temp.oC 115. eq I Temp.oC 115 ·51 I Redox Potential Eh (mV) I N..~ I ............. Redox Potential Eh (m V) I ;ooZf I - Turbidity (NTU) I ZI I Turbidity (NTU) I ~, I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill· Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I ZO .;)..Cj Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = I . .217 gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= I 3bZ.3g I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy LablL...~:"""";"/"":~'--_____ ----' Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as y N specified below) VOCs 0 0 3x40 ml Nutrients rn 0 100ml Heavy Metals 0 0 250 ml All Other Non Radiologics 0 0 250 ml Gross Alpha 0 0 1,000 ml Other (specify) ~ 0 Sample volume TD5 Sv-1 fo.+<> C'n \ 0("\ ~e Comment y N 0 0 0 Ei 0 0 0 0 0 0 0 I:j Added Type y HCL 0 H2SO4 EB RN03 0 No Preserv. 0 RN03 0 0 If preservative is used, specify Type and Quantity of Preservative: 1:4. See instruction l ,~ .. Arf";\Je", on ~;+e tAt 07Y5,IG\nnG( 8611:;~ rrc~~Yl1--fo r P\A"'{1~ Ct.nP\ -S"C4"'p':'Zj ~\.l~n7\ ?v-r~1: b~~OI\. ~t 0750. P\A(,~~cA Well i-;r "'--t-o ta. 1 of" 3iCJ 'M1'nv..1-es. WcA.-tcr 1..0c...s G'ea.r }hf"O V\,,\hovJ-P\A('jE:· Pu.r~< en~ed ~ncA .5ctrvJp Je,J werf c.Dllec+e~ 0-.+ lYoo. P~r-th +0 W~+-e(' cq-fi-cr FV\J ~ VJ~ 7}.90 L -e..rr S 1'+ c 0-. + I Li 07. L...-_______ --JIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 0 0 Ei?I 2 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) OENISOJ)~~ ATTACHMENT 1 WHITE MESA URANIUM MILL Attachment 1 '...,' See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER D~~p~n~S~li~~~: ~1~_~ __ ~_o_~_h_~~G_rw_n_a_~_a_~_~_~_~_O_II ______________ ~ Sampler Name and initials: fTO.nn~r' t}oll;J/A.!J/Trl Location (well name):I~ __ M_w_-_~::...-_______ ----, Date and Time for Purging/L-7-..:/~;L_oJ_':;"_O_I_1 ___ ----J and Sampling (if different) 1-1 ,v,_V-_'Jr ______ ---l Well Purging Equip Used: [QJ pump o@ bailer Well Pump (if other than Bennet) ~I _0_&_D ____ -' Sampling Event 1";,,,1 M_o-'-Ylth.:........::.G"--b_vJ ____ ---I Prevo Well Sampled in Sampling Event .... 1 ~_/A ______ ----, pH Buffer 7.0 7.0 pH Buffer 4.0 Lj.o Specific Conductance .... 1 --J4u.q ...... q ___ ----'I ~MHOSI cm Well Depth(O.Olft): II.?l.\.so Depth to Water Before Purgingj I u.. LIb Casing Volume (V) 4" well:17. 810 1(·653h) 3" Well: 0 (.367h) "-------' Conductance (avg) pH of Water (avg) Well Water Temp. (avg) I \5.5.3 Redox Potential (Eh) I 303 Turbidity I 0 ~---' Weather Condo Ext'l Amb. Temp. °C (prior sampling event) 1 ;;;..J5 t> Time 11030 I Gal. Purged I IS.lll I Time 11031 I Gal. Purged 115.-40 I Conductance 1 ~q I pH I G,.y, 1 Conductance I ~5.3 I pH I b-L/9 I Temp.oC I 1 ~ • 5;2, I Temp.oC I IS .5'1 I Redox Potential Eh (m V) I 31q I Redox Potential Eh (mV) I 3D,5 I Turbidity (NTU) I b I Turbidity (NTU) I 0 I Time 1 103.9-. I Gal. Purged I 15.b~ I Time 11033 I Gal. Purged I 1 ~. fi~ I Conductance I d.?[S~ I pHI b.Sl I Conductance lu8~ I pHI ) . Y<f I Temp.oC I lS.~l I Temp.oC I 15.5:;2 I Redox Potential Eh (m V) I ~1 I Redox Potential Eh (m V) I ~ljS I Turbidity (NTU) I 0 I Turbidity (NTU) I Q I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged lIb .~7 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = L-I _. ;;2._1_7 __ ---l gallon(s) Time to evacuate two casing volumes (2V) T = 2V /Q = I 7:2. 4t; I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab~L._N_/ A....;..... ______ ..J Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as y N specified below) VOCs 0 0 3x40 ml Nutrients 0 0 100 ml Heavy Metals .f3 0 250ml All Other Non Radiologics 0 0 250ml Gross Alpha 0 0 1,000 ml Other (specify) 0 0 Sample volume Comment y N 0 0 0 0 ~ 0 0 0 0 0 0 0 Added Type y HCL 0 H2SO4 0 HN03 ~ No Preserv. 0 HN03 0 0 If preservative is used, specify Type and Quantity of Preservative: i"<ii See instruction i ,.:.~ Arrl'Jd.. 01"1 ~Jt: .J-oq p;. "lti\""cr Mo.. (,."'((;1) pr6en} .for pv~e t:\l\a -SaJY\p}j eVOJ-1-_ PlA.r~t!. b5a.~ lA.t O~;2.D . Pv.r~d \J.)l!1l fOr 0.. +01(,1 of' 715 M:"V\+t:s_ "".t« ""~ c.k IV thr b",~o,,-t pw ~e . ?u.r~ ~ en J cA ~n J., .5A M pic. I,.)«.S e ./I.d. 01 oJ 1035. L..fl srtc ",1' 103~. DCl'th h ",,,,tel' ,,--th ,.-P"(~C ",a.S 113. ~I L...-________ ..JIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 0 0 0 2 of 2 Mill -Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan (QAP) OENISOJ)~~ ATTACHMENT 1 WHITE MESA URANIUM MILL Date: 03/22/2010 Rev. 6 Attachment 1 l (,~ See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I '0 v-\~ fV\OYvt}1~ G rO\..AflJ \l001.-tc.r .9.C 11 Location (well name):L-1 _N..--:.W_-_bS-=-________ --' Sampler Name and initials: I~nn~r HoJ],·Jo,.y/JJf Date and Time for Purgin~ 7/5 / ~o I J and Sampling (if different) ,IV/A Well Purging Equip Used: ~pump or@] bailer Well Pump (if other than Bennet) QED Sampling Event Mon+hl~ G-vJ Prevo Well Sampled in Sampling Event ..... 1 __ A/_y_A _____ --' pH Buffer 7.0 7.0 pH Buffer 4.0 Y.o Specific ConductancelL---CJ.;",.C1_9 ___ -I/IlMHOS/ cm Well Depth(O.Olft): 1.30.00 Depth to Water Before PurgingJ rag. 74 Conductance (avg) 1$33 Well Water Temp. (avg) I \5. bd..... Weather Condo Time I I Gal. Purged I Conductance I I pHI Temp. DC I I Redox Potential Eh (mV) I I Turbidity (NTU) I I Time I I Gal. Purged I Conductance I I pH I Temp. DC I I Redox Potential Eh (mV) I I Turbidity (NTU) I I White Mesa Mill Field Data Worksheet for Groundwater Casing Volume (V) pH of Water (avg) Redox Potential (Eh) I ~g 4" well:1 '3Q ·Q7 1(·653h) 3" Well:. 0 . (.367h) 6.bO Turbidity I '-_L."'-'l"--_-J Ext'l Amb. Temp .• ( (prior sampling event)/ ;)$6 I Time I I Gal. Purged I I / Conductance I I pHI I Temp. DC I I Redox Potential Eh (m V) I I Turbidity (NTU) I I I Time I I Gal. Purged I I I Conductance I I pHI I Temp. DC I I Redox Potential Eh (m V) I I Turbidity (NTU) I I 1 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged [ gO. ';).q gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. Time to evacuate two casing volumes (2V) S/60 = I .;;.1.1 7 T = 2V/Q = I 3f>8.3g I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Labj '-_/V._~_:4 ______ ----l Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y N VOCs 0 0 3x40 ml 0 0 HCL 0 0 Nutrients ~ 0 100m! 0 ~ H2SO4 e1 0 Heavy Metals 0 0 250 ml 0 0 HN03 0 0 All Other Non Radiologics 0 0 250m! 0 0 No Preserv. 0 0 Gross Alpha 0 0 1,000 m! 0 0 HN03 0 0 Other (specify) ffi 0 Sample volume 0 [) 0 @ -'-1) S If preservative is used, specify S\A\f~t-e. Type and Quantity of Preservative: Ch\6'('~~~ Comment l ,~~ See instruction '---_______ ----l[Do not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of 2 TabC2 Field Data Worksheets Accelerated Monitoring September 2011 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) ATTACHMENT 1 OENISONI)~ ~ I WHITE MESA URANIUM MILL Attachment 1 ~ See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I Se..ft,=W\bt.~ Gcov6"'WM~-r-' ;20\\ Location (well name): .... 1 M~:...;;.W_-_\.L.J\'----_______ ---' Sampler Name and initials: Date and Time for Purgi ngJ OJ 17 I 2.0\ \ Well Purging Equip Used: [[]pump o@ bailer Sampling Event I CI\ o"'t~"'1 (2 W { pH Buffer 7.0 I 7",0 Specific Conductancel"-tl..£......lq"-~.L...-_--'II-lMHOS/ cm Depth to Water Before PurgingJ gS, g.s Conductance (avg) and Sampling (if different) Well Pump (if other than Bennet) OtO Prev. Well Sampled in Sampling Event I .;v\ tJ --.3 tJ pH Buffer 4.0 Y.D Well Depth(O.Olft): I 13() Casing Volume (V) pH of Water (avg) 4" well:I 2-6 .. g7 1(·653h) 3" Well: (.367h) Well Water Temp. (avg) I 16,31../ I Redox Potential (Eh)1 1 J '3 Turbidity I Y I .. J Weather Condo Ext'j Amb. Temp. DC (prior sampling event)1 '20~ 1 Time I 1512. 1 Gal. Purged 1 53.5:I 1 Time I 1513 1 Gal. Purged I !;3.S1 1 Conductance I :2~ Ig 1 pH I 7..29 1 Conductance I 282Pr l pHI 7.30 1 Temp.oC I I 6 If 1.-1() I Temp.oC I 16H$9 I Redox Potential Eh (mV) I 123 I Redox Potential Eh (mV) I 120 1 Turbidity (NTU) I LlO.() 1 Turbidity (NTU) I ~1 t..l I Time 11514 I Gal. Purged 1 5~."3 1 Time 11.515 1 Gal. Purged I 5~.~5 1 Conductance 1 2,g2]l pH I 7~29 I Conductance I 2g3~1 pH 1 7..:29 1 Temp.oC I 16« /3 I Temp.oC I 16 .. 25 1 Redox Potential Eh (mV) I II g I Redox Potential Eh (m V) I Ijg: 1 Turbidity (NTU) I Ll2. 2 1 Turbidity (NTU) I WI). q I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I .5 Y. 2,5 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = I .2]7 gallon(s) Time to evacuate two c ing volumes (2V) T = 2V/Q = I ;?'u}7" 65 I Number of casing volumes evacuated (if other than two) AlA If well evacuated to dryness, number of gallons evacuated ,;VA Name of Certified Analytical Laboratory if Other Than Energy Lab~A~!~ Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) y N Type y VOCs 0 0 3x40 ml 0 0 HCL 0 Nutrients 0 0 100ml 0 0 H2SO4 0 Heavy Metals I5l 0 250ml r5l 0 HN03 ~ All Other Non Radiologics 0 0 250ml 0 0 No Preserv. 0 Gross Alpha 0 0 1,000 ml 0 0 HN03 0 Other (specify) 0 0 Sample volume 0 0 0 If preservative is used, specify Type and Quantity of Preserv ati ve: r: . See instruction Comment A,.\vd 0"'-s,\·h:_ evt' 105g. Go..,.-,;V\.. ()... ....... A '-o..."",V\~('" 'P\e....{-e....1\.~ .yo, S6vM-p\i~ e.t/~1-~ f'V'f"5e... b~2>c..",-ev+ 1\t>.5, Wu-.-te.r Wo...$ C, Ie,t)...('" t \....rov.8iA.ou +-pl,)~e... ..so..M~ \ t..S ' ... ..) \6.e t:~ C. D \ I (...t...f c...J.. 0.-+ 15 15. LVe-.e.-Oe,f+~ +0 W~+~r o..f'te-r S~VV\.flt.....s w~("c-L.ol\~c.+c.A wo...s 8q .. JD~ L.'t!..f4-..si+!,.. ~1-1.s;20~ '-________ -JIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 0 0 0 2 of2 • Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) OENISOJ)J~I ATTACHMENT 1 WHITE MESA URANIUM MILL Attachment 1 r: I See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I S-'Le +-~V"" b~r 6f'"OvV\.J,..tA..,)c....+""r' 2 0\\ Sampler Name Location (well name):1 .M LJ -) y and initials: [?I)-cr ·IIA. PuJ Mc;..r / 6 yJ Date and Time for Purginm '" / g I 2. 0 I \ and Sampling (if different) LI N~:!..:A.!...-_____ -l Well Purging Equip Used: IT!] pump o@ bailer Sampling Event I ;v\ QV\. tb \1 G W pH Buffer 7.0 I 7.. 0 Specific ConductanceL-1 ~ql-g.a--q-'--__ -JIIlMHOS/ cm Depth to Water Before Purginm 103.93 1 Conductance (avg) YDSq Well Pump (if other than Bennet) 1-1 ~Q:!I:-L-ELJ,JD-'--___ -J Prevo Well Sampled in Sampling Event 16 W ..... 35 pH Buffer 4.0 Y.D Well Depth(O.Olft): 1 1 ~ gt7 Casing Volume (V) 4" well:1 16,,1 7 3" Well: () 1(·653h) (.367h) pH of Water (avg) '--..... 6<.:.,_5..:...;2~ ___ ----' Well Water Temp. (avg) 1 /5, hI Redox Potential (Eh) I y 6 5 1 TurbidityL.,.I--l.,OL..-_--l Weather Condo Ext'l Amb. Temp. DC (prior sampling eventll 16 0 Time I 0937 1 Gal. Purged I 3:2.t 331 Time 1 093& I Gal. Purged 13.;2.55, I Conductance I LJQhO I pH I 6.56 1 Conductance 1 !:lOS I 1 pHI 6 .. s~ 1 Temp. DC I 15.37 I Temp. DC I 1$.18 I Redox Potential Eh (mV) I !d6S I Redox Potential Eh (mV) I 45g I Turbidity (NTU) I n I Turbidity (NTU) I 0 J Time I 093Q I Gal. Purged I 5.2.:76 I Time l ogyO I Gal. Purged I 3 ;;Lq $. I Conductance I ~(')b3 I pH I 6,$0 I Conductance I ~O.53 I pHI 6,50 I Temp. DC I 15 t 1;2 I Temp. DC I 15v I g I Redox Potential Eh (mV) I L/52 I Redox Potential Eh (m V) I ~LJb I Turbidity (NTU) I D I Turbidity (NTU) I 0 I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1 32 .. 9 B Pumping Rate Calculation Flow Rate (Q) in gpm. S/60= I. ;2.)7 gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= 1 'Y9~07 I Number of casing volumes evacuated (if other than two) I#A If well evacuated to dryness, number of gallons evacuated INA Name of Certified Analytical Laboratory if Other Than Energy Labfl-..... d. .......... :4-1--______ -' Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) y N Type y N VOCs D D 3x40 m! D D HCL D D Nutrients D D 100m! D D H2SO4 D D Heavy Metals D D 250m! D D HN03 D D All Other Non Radiologies D D 250m! D D No Preserv. D D Gross Alpha D D 1,000 m! D D HN03 D D Other (specify) D D Sample volume D D D D If preservative is used, specify Type and Quantity of Preservative: Comment [-J See instruction Arf"'\vt.cl £'11\. S;+e... 0... t-D705r b(;..("",,;,r.., (J...vvA 1~V\V\le:,.r 'P('c....>c.~t-~or .s~)'Y\.pt ; ~ a.v~1-. Pur-.3'C.-b~..,o..."", ()I...+ Olog. Uo-tG' WtAJ c...\~"".r +-l,..,rov5 I.Nov-t pLN"'~e.~ 'D-e,...frt..-.. ~o wc...+~""" a...f+u--pvr~~ v;e-.-.> 101.1_ 30. /Vb .sO-" ........ f'\~~ wt.;r-L. c..OI\t:..c..-+~cA. bc..c...c.....v..st::.. ~ie,..\c'-. Plt \..JA..$ A.l l i-1A.e....;-L....)c....,.,S f"'c...tt,v· ... ~~" Le,.ft site. tAt-Oqt....]b. L.......... ________ ..... IDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) OENISOJ)~~I ATTACHMENT 1 Attachment 1 r _ See instruction WHITE MESA URANIUM MILL MINES FIELD DATA WORKSHEET FOR GROUNDWATER Description of Sampling Event: I 5~? t c.k'Y> bc..r' L2 'CO \.Jlf\.cAtdlA.t U Location (well name ):IL-...L/V\.....:......:....Iw::.=...._~ ...ti2~S..L..-_____ ----' Sampler Name and initials: Date and Time for Purginm Of 17 1 ::l 0 \ \ and Sampling (if different) L...-oO:#~~--'-____ ----I Well Purging Equip Used: [ID pump or@] bailer Sampling Event 1,,/'/\ oV\.tk 1-..., v pH Buffer 7.0 I "7" 0 Specific ConductanceL-1 _'1J...'1J...9.a-__ ....JI""MHOS/ cm Depth to Water Before Purgin~ 7 t.....J I 6 ~ I Conductance (avg) Well Pump (if other than Bennet) LI-=:;Q~E,::..&.D..L-__ -....J Prevo Well Sampled in Sampling Event I .JV\ W -3 \ pH Buffer 4.0 y .. 0 Well Depth(O.Olft): I \ 15K 00 Casing Volume (V) 4" well:1 2tr:?~(.653h) 3" Well:, _ _ (.367h) pH of Water (avg) L...-..&..6C..1",~5 ..... Y......l-___ ---' Well Water Temp. (avg) I J 5~ Y Y 1 Redox Potential (Eh)1 253 I Turbidity I 2.3 Weather Condo Ext'l Amb. Temp. O( (prior sampling eventll 17° Time 1 \\07 I Gal. Purged I .5 2. 5~ I Time I 1\og I Gal. Purged I 52~]J I Conductance 1 3~2} I pH I 6.55 I Conductance I 33231 pHI 6 .. 5 L\ I Temp. DC I 15.51 1 Temp. DC I J5c.s I 1 Redox Potential Eh (mV) I 253 I Redox Potential Eh (mV) I 25':?-1 Turbidity (NTU) I J .. "3 1 Turbidity (NTU) I 2 L\ I Time I 11 09 1 Gal. Purged I 5~.~~ 1 Time I 1110 1 Gal. Purged 153. J6 1 Conductance I 33.26 1 pH 1 b,S4j 1 Conductance I 332s1 pHI 6.SY 1 Temp. DC I IS .. 3 7 1 Temp. DC I ]5.3A I Redox Potential Eh (m V) 1 ;2L)3 1 Redox Potential Eh (mV) I ;;).,5 LI 1 Turbidity (NTU) I 2£2 1 Turbidity (NTU) I ..2, ---s 1 White Mesa Mill Field Data Worksheet for Groundwater 10f4 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I 53" J 6 gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. S/60= I ,,2)] Time to evacuate two casing volumes (2V) T=2V/Q=1 ?Y2.tQ ! Number of casing volumes evacuated (if other than two) ! AlA If well evacuated to dryness, number of gallons evacuated AIA' Name of Certified Analytical Laboratory if Other Than Energy Labll-...... /I~&,,*-=-_____ --I Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y N VOCs 0 0 3x40 mI 0 0 HCL 0 0 Nutrients 0 0 100mI 0 0 H2SO4 0 0 Heavy Metals ~ 0 250mI I5l 0 HN03 ~ 0 All Other Non Radiologies 0 0 250ml 0 0 No Preserv. 0 0 Gross Alpha 0 0 1,000 mI 0 0 HN03 0 0 Other (specify) 0 0 Sample volume 0 0 0 0 If preservative is used, specify Type and Quantity of Preservati ve: See instruction Comment A1"'t'\v !.A 0",," S ~ tt..-t1-+ O'OtJ. G"'-rr~"'" o...~ '-c..v\ll'l..e..i"" P'f.~!"""'{ f-or ('vI' ~'t-o...v..A Sp.."Mf '; ~\le.-.l'v+' f>()~~'!-. b-lJ!>~ ~ t 0 IOE.fOc e , \~A. Vo.-h ... r-~o....> c... \e..c.....(' + \.-.r'ovSk eov+ Pu r-~v . ..5t<-VV\.f l!-...5 t-ve.rt:,-t-.c'\ \ ~ ~'f,..tA ~ i-1\ \ Cl. O~f'+ k +t> t,.)c-. tf!.r o-..f'te.r 5(i4..VV\fl&,S '\.-Ve.j~ c..C"'6t-t'~A w>~..s 76. LAO, l.le..f+ Site... lJ-..;-\115. '---________ ....... !DO not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of4 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) , ATTACHMENT! . OENISON') ~ i WHITE MESA URANIUM MILL Attachment 1 'MINES FIELD DATA WORKSHEET FOR GROUND WATER -.--_.---~.---~ ---- Description of Sampling Event: ISc:.(Jtl.M .b~r 6'0 L>Ad--W c--..-r!--f" 20 \\ Location (well name):L..16,--~t.J=-_.j ..... 2-=.to.6'-______ -J Sampler Name and initials: k See instruction Date and Time for Pu rgi I1gJ q 17 I '20\ \ and Sampling (if different) L...-o;1/c....::....o:A~ _____ --' Well Purging Equip Used: 00 pump o@ bailer Sampling Event I AoV\tt;Jy c;w pH Buffer 7.0 I 7.. 0 Specific Conductance IL-g .... 9....a.-CJ.I.-_-----I1 IlMHOS/ cm Depth to Water Before Purginm 68.561 Conductance (avg) 3569 Well Pump (if other than Bennet) I Gf"'vV\~f QS Prevo Well Sampled in Sampling Event I /'/\ W --:3 1 pH Buffer 4.0 Y.D Well Depth(O.Olft): I J 21.331 Casing Volume (V) pH of Water (avg) 4" well:~----,Oo.L-_-I1 (.65 3h) 3" Well:. 0. .(.367h) Well Water Temp. (avg) 1 15 ... 1\ Redox Potential eEh)1 36 S TurbiditYL-1 -...::.Q"""-------I Weather Condo Ext'l Amb. Temp. O( (prior sampling event)1 \4 0 Time 1091:3 I Gal. Purged I I Time I I Gal. Purged I I Conductance I 3569 I pHI 6.Jl I Conductance I I pH 1 1 Temp. DC I 16 .. \\ I Temp. DC I I Redox Potential Eh (mV) I ~5S I Redox Potential Eh (mV) I I Turbidity (NTU) I n I Turbidity (NTU) I I Time I I Gal. Purged I I Time I I Gal. Purged I I Conductance I I pHI I Conductance I I pH I I Temp. DC I I Temp. DC I I Redox Potential Eh (mV) I I Redox Potential Eh (mV) I I Turbidity (NTU) I I Turbidity (NTU) I I White Mesa Mill . Field Data Worksheet for Groundwater 1 of4 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1-1 L.:M::":~~ ___ --J Pumping Rate Calculation Flow Rate (Q), in gpm. S/60= 1 6. '3 gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= 1 .;VA 1 Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Labll-_N~~A-'--_____ --J Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) y N Type y N VOCs ~ 0 3x40 ml 0 ~ HCL !sa 0 Nutrients rg 0 100ml 0 lS H2SO4 ts 0 Heavy Metals ~ 0 250ml I5l 0 HN03 fil 0 All Other Non Radiologics I5l 0 250ml 0 fgI No Preserv. 0 ~ Gross Alpha ~ 0 1,000 ml 0 [S HN03 lSi 0 Other (specify) rj 0 Sample volume 0 ~ 0 ~ /--k \ 1"')_1""; rhL If preservative is used, specify Type and Quantity of Preservative: ,.oS See instruction " Comment A ~ r" v ~tA. 0 \I\.. ~ i -r -c...-~ ~ t}... t-0 ~ 0 0" C; ~ t'r-~ IA. (}v.A, J... 'I ttJIv'\, ~ f-r~..s e.", 1-.f' or .5 o..MIp \; t..\.I-t--\I\.t. 5~y.A..flt.'5 t..J~.r-'-c...-.c..~llv(...+~ ~+ OA\s~ Ov-.t.-St:..+ o~ fo...-r-~e..-h W A.> +'0--"-' t:..I\, lit. + £/ C, I "3 _ ~ ~ + e.r t.J~.s c.-\ ~ t).. ('-', -£:. 0 II'-t ~ V\. 0 V -' "v """'"P ; ~ tv t. \ I. L-e.fi--"site-a..-} O'l'l2=t>. OC,?-IJ '--________ ..... IDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 cf4 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) ATTACHMENT 1 Attachment 1 , f)ENISONI)~ ~ WHITE MESA URANIUM MILL ~-J See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: IS(!..f t c;..Mb"6r C:> rO\.).I"t\ L.Jc..± c...c 2 Q\ \ Sampler Name Location (well name):! M\..J -.30 and initials: 0Q..ct'i)l\.. ~"r I 6f Date and Time for Purgi ngj OJ 17 I 2Q \ \ and Sampling (if different) ~.A!:...::;...o::.A~ _____ -, Well Purging Equip Used:OOpump o@ bailer Sampling Event !;V\ oll\.*'6.\y G W pH Buffer 7.0 ! 7. 0 Specific Conductance! PI OJ 9 I~MHOS/cm Depth to Water Before Purgingj 7 (,. 5 \ Conductance (avg) 1-1 -,,2~1-1 G--JI..Ioo6~ ___ -J Well Pump (if other than Bennet) L...I...!:G::::...JcE:.::::.;DIoc:-___ ....J Prev. Well Sampled in Sampling Event I'!v\ w -3) pH Buffer 4.0 H.O Well Depth(O.Olft): 1 \ , b Casing Volume (V) pH of Water (avg) 4" well:1 ?oJ, Sb 1(·653h) 3" Well: (.367h) 6 .. 80 Well Water Temp. (avg) ! ]5.2Z I Redox Potential (Eh)1 282 TurbiditY .... 1 ---'0'--""-_----' Weather Condo 5vV\.V\.y Ext'l Amb. Temp. DC (prior sampling event)1 17 b I Time ! lOY:l-I Gal. Purged ! ~3 .. a3 I Time I 10Y3 I Gal. Purged I ~~.o5 1 Conductance I -:J...11d 5 I pH! be! 81 I Conductance I .:2 } l..j S I pH I 6r B2 I Temp. DC I 15 •• Zg 1 Temp. DC I 15. 'J is 1 Redox Potential Eh (mV) 1 2~~ 1 Redox Potential Eh (mV) I ::2 ~:2 I Turbidity (NTU) 1 0 1 Turbidity (NTU) I 0 I Time I lO LlY I Gal. Purged 1 yy" -;l6 1 Time 1 1045 1 Gal. Purged I ~!::L~g 1 Conductance 1 21!:ig I pHI 6. SO 1 Conductance I :2 ,l~g 1 pH 1 6.RO I Temp. DC 1 15 .. 26 I Temp. DC I 1£,.31 1 Redox Potential Eh (m V) 1 :Lgl 1 Redox Potential Eh (mV) I 2~1 I Turbidity (NTU) 1 Q 1 Turbidity (NTU) I 0 I White Mesa Mill Field Data Worksheet for Groundwater 1 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I yt../ 1:1 S Pumping Rate Calculation Flow Rate (Q) in gpm. S/60 = I .;2 17 gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= I -;;2.0\.55 I Number of casing volumes evacuated (if other than two) N.A If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab! ......... .4 ........ I LA .......... _____ --' Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) y N Type y N VOCs 0 0 3x40 ml 0 0 HCL 0 0 Nutrients Dt. 0 100ml 0 I:ia H2SO4 gJ 0 Heavy Metals IE. 0 250ml !Sf 0 HN03 ,gl 0 All Other Non Radiologies 0 0 250ml 0 0 No Preserv. 0 0 Gross Alpha 0 0 1,000 ml 0 0 HN03 0 0 Other (specify) ~ 0 Sample volume 0 ~ 0 ~ c..lA\()rirJ.~ If preservative is used, specify Type and Quantity of Preservati ve: Comment [~;A See instruction A ~f""·\V~J-. 0""-..s i tu e>-.. + 07' 6. Go.t"f"~"""" o.."",A -r'",-V\V\,Cor ff"-t....s,c..o/'v *' {Jo-f" ~&-."""~ ~ i V\.~ ~v~-t'" Pvrbt-b~ ovt-0720. LJa.. t&r \.J()...> c.. ,~~, +-"'-r-ov~~ov+ f V '3{.;1 .5~lM.flt:...s wt:.rL.,. c..o\\-e...c-t~A tNt-101..-1.5. O-e....f1-'k to WIA.+~r c--fte..r' .$c..V'-\~\v.5 Wt:..r~ L.o'l~£..+~'\' IA./&...J 7Q.30. L-~f".f ..s'+~ ~+-1050 L..... ________ ...JIDo not touch this cell (SheetName) White Mesa Mill Field Data Workslieet for Groundwater 2 of2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) OENISONI)~ ~ ATTACHMENT 1 Attachment 1 r-See instruction WHITE MESA URANIUM MILL MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I S-t::.pf"~h')be.r G-('O"'t')~ Wo-..'te r .?..() 1\ Location (well name):II-_M_W_-.....;:~::..;l ________ -..I Sampler Name and initials: ITu..one.f' H o/l:~o.,,=\/TH Date and Time for PurgingJ ...... 9...:...&....1 b ...... /.....;;.:?-_O...;..;II'--___ ..... and Sampling (if different) pJ/ It ~~~-----..... Well Purging Equip Used: [ff]pump o@ bailer Sampling Event I Mon+hk1 Crw pH Buffer 7.0 I.D Specific Conductance .... 1 ----:9....:,'I....J.3 ___ ..... 1 !!MHOS/ cm Depth to Water Before Purgind bg. ~S Conductance (avg) L-----Ll ...... 4..;....lq.../....-____ -' Well Pump (if other than Bennet) IL-Q..:.-.;E-=D=---___ -' Prevo Well Sampled in Sampling Event ..... 1_1'1_1_4 _____ -' pH Buffer 4.0 L\.O Well Depth(O.Olft): \30·00 Casing Volume (V) pH of Water (avg) 4" well:1 .39.93 1(·653h) 3" Well: () (.367h) '--~--..... Well Water Temp. (avg) I lS::Y\ Redox Potential (Eh) I ttS ti Turbidity 1'--0=-_---' Weather Condo Ext'l Amb. Temp. DC (prior sampling eventl l 17!> Time 11"'-':' C 0 --. ... -1 I Gal. Purged 17Cf.:;.o I Time 1 1 Cl C \ '..J f I . I Gal. Purged 17q .42 I I~D.s J'-\D4, Conductance I 11~O I pHI 7.6')., I Conductance 1 1'111 I pH 1 7-0.:3 I Temp.oC I Is .YD I Temp.oC I IS ·:3, I Redox Potential Eh (mV) 1 ~bY I Redox Potential Eh (mV) I ~5~ I Turbidity (NTU) I 0 I Turbidity CNTU) I a I Time I ns.~'l . I Gal. Purged I 1~.fz;2 I ),-\07 Conductance I l~lg I pH 17.0:> I Time 1 \-1")3 . I Gal. Purged 1 7'1,85 I . )-- Jl.jD~ I Conductance I 1~~() I pH 1 /.0.3 Temp.oC I Is.y! I Temp.oC I 15.3b I Redox Potential Eh (m V) I Cl:So I Redox Potential Eh (mV) I :1~L{ I Turbidity (NTU) I 0 I Turbidity (NTU) I Q I White Mesa Mill Field Data Worksheet for Groundwater 1 of2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I go.2j Pumping Rate Calculation Flow Rate (Q) in gpm. S/60 = I . :2.l7 gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= I 3bg .O;2.. I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab~L....:..;v,~V..:...'A-=--_____ --J Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y N VOCs 0 0 3x40 ml 0 0 HCL 0 0 Nutrients m 0 100 ml D IX H2SO4 rii 0 Heavy Metals 0 0 250ml 0 0 HN03 0 0 All Other Non Radiologies 0 0 250ml 0 0 No Preserv. 0 0 Gross Alpha 0 0 1,000 ml 0 0 HN03 0 0 Other (specify) ~ 0 Sample volume 0 ri 0 lSi! IDS If preservative is used, specify ~\j.'+o-t( Type and Quantity of Preservative: C. h \or\~e. See instruction Comment A(("i\)~~ bn s~·h:. ~t 0/$,-\, \;.nYlf.r I).,l'l~ G-fA.(r,·1'l ?r~SC:Ylt -Nr f~r~c. o.n~ .s~MpL·nq event fv..f~--e. b1:~CJ..n ~1' ogOO. 'PIA('~eJ. w~1I +or ~ +D+o.,l ot '370 lYl ·n\A+~.5. '.J wo,:tef" IN~ d-eo.r '}hl"QU.~ blAt ?\Af~'-.. p lAr~-e. ~Y)detA ~-r +4t1 1 LiIO. ~Cfty"fle.J. v..J~('(. C.Dne<..1-~~ <.'.t"' -l4Q. 111 J o. Depth 1-0 ~+<r \,..)CI~ i:l. J() . L<...0-5,;+<=-41-ILl tS L..-_______ -.JIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Grcfundwater 2 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) OENISONI)~ ~ ATTACHMENT 1 Attachment 1 WHITE MESA URANIUM MILL See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 1 ..s~Oh: . .Mbe..r 6f"'ouV\.J.we....t~r-;;2.QI\ Location (well name ): ... 1 ,;V\'---"-"W:..----=3""'SoJ.-______ -' Sampler Name and initials: 1 0t>xr .... ;V\, fev\W\e c I 6e Date and Time for Purgind OJ 17 J 20' \ and Sampling (if different) L-...:M'-...:...:?1:......L. _____ ..J Well Purging Equip Used: lID pump or@] bailer Sampling Event 1 AoV\d: \'-"\1' r; t,..) pH Buffer 7.0 1-1 _7~"-,,,O'--_----J Specific ConductanceI-I _9-4-9...L-t1L-_...-.Jh.tMHOS/ em Depth to Water Before PurgingJ 1 \ 2. '-'I Y 1 Conductance (avg) 16.5 5 Well Pump (if other than Bennet) 1-1 --,Q.......,E.=<...L.D..J.-__ ...-.J Prevo Well Sampled in Sampling Event I ,/V\ W ..... ;2.5 pH Buffer 4.0 Y.D Well Depth(O.Olft): Casing Volume (V) pH of Water (avg) 4" well:1 7 h17 1(·653h) 3" Well:. _ .(.367h) 6,YS Well Water Temp. (avg) 1 IS. q7 1 Redox Potential eEh)1 :2. y g Weather Condo Ext'l Amb. Temp. °C (prior sampling event)1 ',,\0 Time 1 )237 1 Gal. Purged 1 15.62 1 Time I 1;2,38' 1 Gal. Purged I ]5. ~:l 1 Conductance I 16 .. 2 1 pH I 6. L./ 6 1 Conductance I 160l ~ 1 pH I 6.46 I Temp. DC I Ib.DY I Temp. DC I I h" :21 I Redox Potential Eh (mV) I 2~~ 1 Redox Potential Eh (mV) 1 2LJ~ I Turbidity (NTU) I () I Turbidity (NTU) I 0 I Time I l;23'1 I Gal. Purged I 16 .. C!S 1 Time 1 l;2uo 1 Gal. Purged 1 16.~J I Conductance 1 161~ I pH 1 6cYY 1 Conductance I 11,. ~ I pH I 6.Y2 I Temp. DC 1 15,,67 1 Temp. DC I 15, q~ I Redox Potential Eh (mV) 1 ~~7 1 Redox Potential Eh (mV) I 2~7 I Turbidity (NTU) 1 () I Turbidity (NTU) I CJ I White Mesa Mill Field Data Worksheet for Groundwater 1 of2 Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I I o. 27 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = I ..;;z. 1 7 gallon(s) Time to evacuate two casing volumes (2V) T = 2V IQ = I 7 'J.. 5 & I Number of casing volumes evacuated (if other than two) AlA If well evacuated to dryness, number of gallons evacuated dA Name of Certified Analytical Laboratory if Other Than Energy LablL..---""./\./.....::....iA~ _____ --' Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) y N Type y N VOCs 0 0 3x40 mI 0 0 HCL 0 0 Nutrients 0 0 100mI 0 0 H2SO4 0 0 Heavy Metals [}I 0 250mI ~ 0 HN03 ~ 0 All Other Non Radiologics 0 0 250mI 0 0 No Preserv. 0 0 Gross Alpha 0 0 1,000 mI 0 0 HN03 0 0 Other (specify) 0 0 Sample volume 0 0 0 0 If preservative is used, specify Type and Quantity of Preservati ve: See instruction Comment A r.\vuA.. 0"",, ~i.rt.-~+ 1\2-0 .. 0a..1"'''''; V\. (}..V\,A 1c...V\.V\.~r' f;-f...,",~.I\. -t' f'c>r 5o-.W\'P ';Y'\-~ e.v~-t ~ fv('"3~ 'De-fl"v\' ~+-1\ U. LJiA.-te...r wo....s t:' t..o..r t ~~O(}b kOV + P Uf"~e.-I 5iAMple....s \.J~e.. c..olle..c..teo\. IR.+ I ;:2..L/O. De.ptk. +0 t->c<-+e.-r o.-p-ru-pvr-~(!J w0-.5 113" 36. L..~~ t SI tt:,. 0-..+ 1250, L..-________ -IIDO not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of Z Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) ATTACHMENT 1 OENISONI) ~ WHITE MESA URANIUM MILL Attachment 1 See instruction MINES FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 1 5~etl....Mhc..r Gfou;;lwa....1-"t-r 20\ \ Location (well name) :1-.1 L-,IV\---L.:w=-----=:;6....::..5~ ______ ____' Sampler Name and initials: Date and Time for Purging/ q J 7 I 20 \ \ Well Purging Equip Used: [IDpump o@ bailer Sampling Event I MOot b \ Y 6 W pH Buffer 7.0 I 7 ..... 0 Specific Conductance I q qq I!!MHOS/cm Depth to Water Before Purginm 1} 2. t y y I Conductance (avg) 16 .. 5.5 and Sampling (if different) Well Pump (if other than Bennet) I OE-D Prevo Well Sampled in Sampling Event I ,!V\ vJ ...... ;2S pH Buffer 4.0 H .. O Well Depth(O.Olft): 1 J 2Y. 50 Casing Volume (V) 4" well:1 / g 7 1(·653h) 3" Well:.;' . (.367h) pH of Water (avg) 6. y S Well Water Temp. (avg) I 15 .. 9'7 I Redox Potential (Eh) I ;? L-i g I Turbidity I 0 Weather Condo Ext'l Amb. Temp. DC (prior sampling event)1 I q~ Time I 1?-37 1 Gal. Purged I l-.5 t £.2 1 Time 1 12.3&'1 Gal. Purged 1 15.S~ 1 Conductance 1 11>.2 1 pH 1 6.Y6 1 Conductance 1 1~1:~ I pH 1 6. L/b I Temp.oC I 16.oy I Temp.oC I 16.21 I Redox Potential Eh (mV) I ;2~9 I Redox Potential Eh (mV) I 2!dg I Turbidity (NTU) I () I Turbidity (NTU) 1 () I Time I 123<1 I Gal. Purged I 16. 1)5 I Time I 12HO I Gal. Purged I 16 ~/I Conductance I l6.~ I pH I 6. L-J L.} I Conductance I 1613 I pH I £, W2 I Temp.oC I 15,67 I Temp.oC I IS, q~ I Redox Potential Eh (mV) I ;;(~f2 I Redox Potential Eh (mV) I 2L.J7 I Turbidity (NTU) I (') I Turbidity (NTU) I () I White Mesa Mill Field Data Worksheet for Groundwater 1 of2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged I 1 6, 27 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60= I .. 217 gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= I 72,58 I Number of casing volumes evacuated (if other than two) ./1/ A If well evacuated to dryness, number of gallons evacuated ,/1/ A- Name of Certified Analytical Laboratory if Other Than Energy Lab~L-.....:~--.:....I1,---, _____ ..... Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as Added y N specified below) Y N Type y N VOCs 0 0 3x40 ml 0 0 HCL 0 0 Nutrients 0 0 100mi 0 0 H2SO4 0 0 Heavy Metals IX 0 250ml ,rg 0 HN03 m 0 All Other Non Radiologies 0 0 250ml 0 0 No Preserv. 0 0 Gross Alpha 0 0 1,000 ml 0 0 HN03 0 0 Other (specify) 0 0 Sample volume 0 0 0 0 If preservative is used, specify Type and Quantity of Preservati ve: See instruction Comment L-________ ...JIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of 2 TabD Quarterl y Depth to Water Static Quarterly Depth to Water NAME: Tanner Holliday, Garrin Palmer DATE: 9/20/2011 TIME WELL level TIME WELL Static Level TIME WELL 829 MW-l 64.64 1213 MW-4 71.19 844 PIEZ-l 1246 MW-2 109.74 1209 TW4-1 64.45 840 PIEZ-2 1256 MW-3 83.33 1215 TW4-2 67.26 1156 PIEZ-3 1257 MW-3A 85.45 1204 TW4-3 49.53 1230 PIEZ-4 1322 MW-5 106.15 1220 TW4-4 73.01 1234 PIEZ-5 1326 MW-ll 88.65 1200 TW4-5 56.08 1319 MW-12 108.40 1223 TW4-6 70.41 1210 TWN-l 1330 MW-14 103.72 1211 TW4-7 67.61 1400 TWN-2 1333 MW-15 106.35 1207 TW4-8 66.77 1214 TWN-3 1252 MW-17 75.51 1202 TW4-9 54.07 1152 TWN-4 836 MW-18 70.25 1158 TW4-10 56.00 830 TWN-5 842 MW-19 51.84 1217 TW4-11 57.59 824 TWN-6 951 MW-20 87.29 1240 TW4-12 39.91 832 TWN-7 944 MW-22 67.20 1242 TW4-13 46.31 822 TWN-8 1251 MW-23 114.26 1245 TW4-14 87.32 847 TWN-9 1226 MW-24 114.45 1156 TW4-15 73.99 818 TWN-I0 1340 MW-25 74.56 1326 TW4-16 62.50 812 TWN-ll 1156 MW-26 73.99 1328 TW4-17 76.05 810 TWN-12 1221 MW-27 51.11 1207 TW4-18 56.57 848 TWN-13 1235 MW-28 76.88 1405 TW4-19 63.55 851 TWN-14 1242 MW-29 102.22 1154 TW4-20 81.03 816 TWN-15 1239 MW-30 76.35 1204 TW4-21 54.55 856 TWN-16 1333 MW-31 68.75 1152 TW4-22 53.94 855 TWN-17 1328 MW-32 76.05 1224 TW4-23 65.47 1148 TWN-18 1302 MW-33 dry 1150 TW4-24 55.64 807 TWN-19 1304 MW-34 107.80 1202 TW4-25 46.83 1255 MW-35 112.20 1227 TW4-26 64.09 1258 MW-36 110.30 1308 MW-37 109.24 Comments: Static Level 61.74 17.79 40.96 48.42 43.21 50.77 16.90 32.10 39.05 69.67 74.59 88.80 61.66 63.41 81.06 69.57 31.80 46.29 62.80 92.12 47.96 34.15 57.80 52.19 TIME 737 740 815 750 747 744 800 803 806 733 755 730 718 715 707 710 725 WELL Static Level DR-l ABANDON DR-2 ABANDON DR-3 MW-36 DR-4 MW-37 DR-5 83.23 DR-6 94.41 DR-7 92.15 DR-8 51.11 DR-9 86.63 DR-I0 78.00 DR-ll 98.34 DR-12 87.19 DR-13 70.12 DR-14 76.49 DR-15 93.01 DR-16 ABANDON DR-17 64.85 DR-18 ABANDON DR-19 63.35 DR-20 55.91 DR-21 101.65 DR-22 DRY DR-23 70.78 DR-24 43.88 DR-25 ABANDON TabE Laboratory Analytical Reports -Quarterly Sampling EI\ERGY i\-!()f.hl ~I~I --. www.energylab.com AM/fIkM ~ SIIIu ,/lIZ Helena, MT 817-472-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515 Gillatt8, 'NY .1S-188-7175 · Rapid City, so 888-&72-1225 • Collaga StatiDn, TX 888-610-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab ID: 3rd Quarter Groundwater 2011 C11080529-001 Client Sample ID: MW-2 Analyses RADIONUCLIDES -DISSOLVED Gross Alpha minus Rn & U Gross Alpha minus Rn & U Precision (i) Gross Alpha minus Rn & U MOC Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result 0.5 0.1 0.1 Units pC ilL pCi/L pCilL MOC -Minimum detectable concentration Qualifier Rl Report Date: 09/14/11 Collection Date: 08/08/11 13:30 DateReceived: 08/12/11 Matrix: Aqueous MCL! QCl Method Analysis Date 1 By E900.1 09/01/11 19:001 ep E900.1 09/01/11 19:001 ep E900.1 09/01/11 19:001 ep MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 4 of 38 EN:RGY I\"'>"~'P,\I III • ...!'l www.energylab.com AM/ffIrM ExrdItIa smc. 1m Heiflna, MT 871-412·0711 • Billings, MT 800-735-4489 • Casper, WY aal-235-0515 Gillattu, WY .88-888-7175 • Rapid City, so 888-672-1225 • College Station, TX aal-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: LablD: Denison Mines USA Corp 3rd Quarter Groundwater 2011 C11080529-002 Client Sample ID: MW-3 Analyses MAJOR IONS Fluoride METALS -DISSOLVED Selenium Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result 0.96 46.0 Units mg/L ug/L Qualifier RL 0.10 5.0 Report Date: 09/14/11 Collection Date: 08/10/11 09:50 DateReceived: 08/12111 Matrix: Aqueous MCL! QCL Method Analysis Date I By A4500-F C 08/15/11 11 :27 1 jba E200.8 08/17/11 02:07 I sml MCL -Maximum contaminant level. NO -Not detected at the reporting limit. Page 5 of 38 EN:RGY "'~LJH .... 1 ::"'HI ') Halena, MT 877-472-0711 • Billings, MT 800-735·4489 • Casper, WY 881-235-0515 Gillette, WY 888·188·7175 • Rapid City, so 888·672-1225 • College Station, 1X 881-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp 3rd Quarter Groundwater 2011 C 11080529-003 Client Sample 10: MW-3A Analyses MAJOR IONS Sulfate PHYSICAL PROPERTIES Solids, Total Dissolved TDS @ 180 C METALS -DISSOLVED Selenium Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 3560 5810 88.5 o -Rl increased due to sample matrix. Units mg/l mg/l ug/l Report Date: 09/14/11 Collection Date: 08/11/11 07:35 DateReceived: 08/12111 Matrix: Aqueous MCL! Qualifier RL QCl Method Analysis Date 1 By 0 50 A4500-S04 E 08/22111 16:52/1jl 0 17 A2540 C 08/12111 16:321 wc 5.0 E200.8 08/17/1102:121 sml MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 6 of 38 EN:RGY }\:-\OP/\! Of,l!l 'J WIWI.energylab.com AMIfI/a/~ Shu rItZ Helena, MY 877-412-0711 • Billings, MY 800-735-4489 . Casper, WY 881-235-0515 Gillette, WY m-186-7115 • Rapid City, so 888-812-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab ID: Denison Mines USA Corp 3rd Quarter Groundwater 2011 Cl1080529-004 Client Sample ID: MW-5 Analyses METALS -DISSOLVED Uranium Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 0.50 ug/l Qualifier RL 0.30 Report Date: 09/14/11 Collection Date: 08/09/11 11 :05 DateReceived: 08/12/11 Matrix: Aqueous MCL! QCL Method Analysis Date 1 By E200.8 08/17/11 16;331 sml MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 7of38 Americall West .,'AIYIIC41 10 Onl>TOA f. 463 West 3600 South Salt Lake City, UT 84115 Phone: (801)263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer ORGANIC ANALYTICAL REPORT Client: Denison Mines Project: 3rd Quarter Ground Water 2011 Lab Sample ID: 1108108-00lA Client Sample ID: MW-ll Collection Date: 8/3/2011 1025h Received Date: 8/5/2011 Analytical Results Analyzed: 8/5/2011 13l4h Units: !lg/L Dilution Factor: 1 Compound Tetrahydrofuran Surr: 1,2-Dichloroethane-d4 Surr: 4-Bromofluorobenzene Surr: Dibromofluoromethane Surr: Toluene-d8 0945h Contact: Jo Ann Tischler Method: SW8260C VOAs by GC/MS Method 8260C/S030C CAS Reporting Analytical Number Limit Result Qual 109-99-9 1.00 < 1.00 17060-07-0 77-144 95.1 460-00-4 80-123 109 1868-53-7 80-124 96.1 2037-26-5 80-125 102 Report Date: 8/12/2011 Page 4 of29 All analysl.!s appJicable 10 Ihe CWA. SDWA. and RCRA arc performed in accordance to NELAC protocols PeTtinent sampling infomlalion is located on the attached CDC This report is provided fOT the exclusive usc orlhe addTl!ssec. Privileges of subsequent use orlhe name oflhis company or any member of its staff, or reproduction oFthis report in connection with the advertisement. promotion or sale of any product or process, or in connection with the re-publication of Ihis report for any purpose other than for the addressee will be granted only un contncl. This company accepts no responsibility except for (he due pcrronnancc of inspt!crion and/or analysis in good faith and according 10 the rult!S (if Ihe trade and of science EI\ERGY L, HCI J I \ 'Il.'· www.energylab.com AH/ftlt:M Ex~ SIne. 1/152 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 8&&-&86-7175 • Rapid City, SO 888-&12-1225 • College Station, TX 888-&90-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10/06/11 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Lab 10: C 11080269-003 Client Sample 10: MW-11 Analyses MAJOR IONS Carbonate as C03 Bicarbonate as HC03 Calcium Chloride Fluoride Magnesium Nitrogen, Ammonia as N Nitrogen, Nitrate+Nitrite as N Potassium Sodium Sulfate PHYSICAL PROPERTIES pH Solids, Total Dissolved TDS @ 180 C METALS· DISSOLVED Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc RADIONUCLlDES· DISSOLVED Gross Alpha minus Rn & U Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MOC Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result 4 347 59.4 31 0.48 17.3 0.63 ND 6.6 628 1090 7.97 1940 NO NO NO NO ND NO 226 NO 118 ND ND NO NO NO ND ND 0.48 NO NO 1.1 0.7 Units mg/l mg/L mg/L mg/L mg/L mg/l mg/L mg/L mg/L mg/L mg/L S.u. mg/L ug/L ug/L ug/L ug/L ug/L ug/l ug/L ug/L ug/L ug/l ug/L ug/l ug/L ug/L ug/l ug/L ug/L ug/L ug/L pCilL pCi/l pC ill MOC -Minimum detectable concentration Report Date: 09/01/11 Collection Date: 08/03/11 10:25 DateReceived: 08/05/11 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date 1 By D D D A2320 B 08/05/11 18 :371 jba A2320 B 08/05/11 18:37 1 jba 0.6 E200.7 08/15/11 13:271 cp 1 A4500-CI B 08/10/11 12:041 wc 0.10 A4500-F C 08/08/11 12:20 1 jba 0.5 E200.7 08/15/11 13:271 cp 0.05 A4500-NH3 G 08/11/11 14:35 1 dc 0.1 E353.2 08/08/11 13:051 dc 0.5 E200.7 08/15/11 13:27 1 cp 0.9 E200.7 08/15/11 13:271 cp 20 A4500-S04 E 08/22111 15:44/1jl 0.01 A4500-H B 08/05/11 15:471 wc 10 A2540 C 08/05/11 17:22 1 Imc 5.0 E200.8 08/09/11 07:451 sml 0.50 E200.8 08/09/11 07:45 1 sml 0.50 E200.8 08/09/11 07:451 sml 25 E200.8 08/09/11 07:451 sml 10 E200.8 08/09/11 07:451 sml 10 E200.8 08/09/11 07:451 sml 30 E200.7 08/15/11 13:271 cp 1.0 E200.8 08/09/11 07:451 sml 10 E200.8 08/09/11 07:451 sml 0.50 E200.8 08/09/11 07:451 sml 10 E200.8 08/09/11 07:45 1 sml 20 E200.8 08/09/11 07:451 sml 5.0 E200.8 08/09/11 07 :45 1 sm I 10 E200.8 08/09/11 07:451 sml 0.50 E200.8 08/09/11 07:45 1 sml 100 E200.8 08/09/11 07:45 1 sml 0.30 E200.8 08/09/11 07:45 1 sml 15 E200.8 08/09/11 07:451 sml 10 E200.8 08/31/11 12:091 sml E900.1 08/18/11 13:23 1 ep E900.1 08/18/11 13:231 ep E900.1 08/18/11 13:231 ep MCl -Maximum contaminant level. NO -Not detected at the reporting limit. o -RL increased due to sample matrix. Page 5 of 35 EI\ERGY _,'!:::3 .J!-J' I J -IE. www.energylab.com __ , Exun.nu SIIIU '952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 816·&86·7175 • Rapid City, SD 888·&72·1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10/06/11 Report Date: 09/01/11 Collection Date: 08/03/11 10:25 DateReceived: 08/05/11 Matrix: Aqueous Client: Denison Mines USA Corp Project: LablD: 3rd Quarter Groundwater 2011 C11080269-003 Client Sample ID: MW-11 Analyses DATA QUALITY NC Balance (± 5) Anions Cations Solids, Total Dissolved Calculated TDS Balance (0.80 -1.20) VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes, Total Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 4.03 29.4 31.9 2020 0.960 NO NO NO NO NO NO NO NO NO NO 98.0 102 95.0 85.0 MCL! Units Qualifier RL QCL Method Analysis Date I By % Calculation 08/30/11 09:231 sdw meqlL Calculation OB/30/11 09:23 I sdw meqlL Calculation 08/30/11 09:23 I sdw mg/L Calculation OB/30/11 09:23 I sdw Calculation OB/30/11 09:23/ sdw ug/L 20 SW8260B 08/08/11 16:50/ ilr ug/l 1.0 SW8260B 08/08/11 16:50 I ilr ug/l 1.0 SW8260B 08/08/11 16 :50 / ilr ug/l 1.0 SW8260B 08/0B/11 16:50 I ilr ug/l 1.0 SW8260B 08/08/11 16:50 I ilr ug/L 20 SW8260B OB/08/11 16:50/ ilr ug/l 1.0 SW8260B 08/08/11 16:50/ ilr ug/l 1.0 SW8260B 08/08/11 16:50/ ilr ug/L 1.0 SW8260B 08/08/11 16:50/ ilr ug/l 1.0 SW8260B 08/08/11 16:50/ ilr %REC 80-120 SW8260B 08/08/11 16:50/ ilr %REC 70-130 SW8260B 08/08/11 16:50/ ilr %REC 80-120 SWB260B 08/08/11 16:50/ ilr %REC 80-120 SW8260B OB/08/11 16:50 / ilr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 6 of 35 EN:RGY "-lO r~)'I ')PI :... www.energylab.com AMI!tfaI ExuIIaa stJw 1m Helena, MT 871-472-0711 • Billings, MT 800·135·4489 • Casper, WY 881-235-8515 Gillette, WY 816-886·7175 • Rapid City, so 888-&72-1225 • College station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp 3rd Quarter Groundwater 2011 C11080529-005 Client Sample 10: MW-12 Analyses METALS -DISSOLVED Selenium Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 25.4 ug/l Qualifier Rl 5.0 Report Date: 09/14/11 Collection Date: 08/09/11 07:35 DateReceived: 08/12/11 Matrix: Aqueous MCL! QCl Method Analysis Date I By E200.8 08/17/11 02:16/ sml MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 8 of 38 An'lf~rican West ANAl VTIC/.l I AnORATonlFS 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer ORGANIC ANALYTICAL REPORT Client: Denison Mines Project: Lab Sample ID: 3rd Quarter Ground Water 2011 1l08108-002A Client Sample ID: MW-14 Collection Date: 8/3/2011 Received Date: 8/5/2011 Analytical Results Analyzed: S/5/2011 1333h Units: Ilg/L Dilution Factor: Compound Tetrahydrofuran Surr: 1,2-Dichloroethane-d4 Surr: 4-Bromofluorobenzene Surr: Dibromofluoromethane Surr: Toluene-dS 1335h 0945h Contact: Jo Ann Tischler Method: SWS260C VOAs by GC/MS Method 8260C/S030C CAS Reporting Analytical Number Limit Result Qual 109-99-9 1.00 < 1.00 17060-07-0 77-144 95.8 460-00-4 80-123 109 1868-53-7 80-124 97.1 2037-26-5 SO-125 101 Report Date: 8112/2011 Page 5 of 29 All analyses applicable to the CWA, SDWA, and RCRA arc pcrfonned in accordance to NELAC protocols Pertinent sampling infonllalion is localed on thl! attached CDC. This report is provided for the exclusive usc oflhe addressee Privileges of subsequent use oflhe nalUe of this company or nny member of its slafT. or reproduction oflhis report in connection with the advertisement. promotion or !laIc of any product or process, or in connection with Ihc-re·publicalion of Ihis report [or any purpose olher than for the addressee will be granted only on eonlacL 1llis c(lmpany accepts no responsibility except for the due pcr[onnance of inspection and/or analysis in good faith nnd according to the rult.'S oflhe trade and of science EN:RGY L /18 Jr'1'Jd J'-·'IE..~, www.energylab.com AM/ffl§/ Ex"""," Sku 1/151 Helena, hfT 877-472-0711 • Billings, MT 800-135-4489 • Caspar, WY 888-235-0515 Gillette, WY 8&&·&86-7175 • Rapid City, SD 888-612-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10/06/11 Client: Denison Mines USA Corp Report Date: 09/01/11 Project: 3rd Quarter Groundwater 2011 Collection Date: 08/03/11 13:35 Lab 10: Cl1080269-004 DateRecelved: 08/05/11 Client Sample 10: MW-14 Matrix: Aqueous MCl! Analyses Result Units Qualifier Rl QCl Method Analysis Date 1 By MAJOR IONS Carbonate as C03 NO mg/L A2320 B 08/05/11 18 :45 / jba Bicarbonate as HC03 449 mg/L A2320 B 08/05/11 18:45/ jba Chloride 18 mg/L A4500-CI B 08/10/11 12:081 wc Fluoride 0.15 mg/L 0.10 A4500-F C 08/08/11 12 :27 1 jba Sulfate 2210 mg/L D 50 A4500-S04 E 08/22111 15:49/1jl PHYSICAL PROPERTIES pH 7.40 S.u. 0.01 A4500-H B 08/05/11 15 :56 1 wc Solids, Total Dissolved TDS@ 180 C 3560 mg/L 10 A2540 C 08/05/11 17:221 Imc DATA QUALITY AlC Balance (± 5) 0.287 % Calculation 1 0/06111 16 :02 / sdw Anions 53.8 meq/L Calculation 1 0/06/11 16 :02 / sdw Cations 54.1 meq/L Calculation 1 0106/11 16 :02 / sdw Solids, Total Dissolved Calculated 3490 mg/L Calculation 10106/11 16:021 sdw TDS Balance (0.80 -1.20) 1.02 Calculation 10/06/11 16:021 sdw . The Anion I Cation balance was calculated using the cation results from workorder Cll 090045. VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes. Total Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. ND ND ND NO NO ND ND ND ND ND 104 103 94.0 87.0 D -RL increased due to sample matrix. ug/L 20 SW8260B 08/08/11 17:26 / jlr ug/L 1.0 SW8260B 08/08/11 17:26 1 jlr ug/L 1.0 SW8260B 08/08/11 17:26 1 jlr ug/L 1.0 SW8260B 08/08/11 17 :26 1 jlr ug/L 1.0 SW8260B 08/08/11 17:26 / jlr ug/L 20 SW8260B 08/08/11 17:26 / jlr ug/L 1.0 SW8260B 08/08/11 17:26 1 jlr ug/L 1.0 SW8260B 08/08/11 17:26 1 jlr ug/L 1.0 SW8260B 08/08/11 17:261 jlr ug/L 1.0 SW8260B 08/08/11 17 :26 1 jlr %REC 80-120 SW8260B 08/08/11 17:26 / jlr %REC 70-130 SW8260B 08/08/11 17:26 / jlr %REC 80-120 SW8260B 08/08/11 17:26 / jlr %REC 80-120 SW8260B 08/08/11 17:26 1 jlr MCL -Maximum contaminant level. NO -Not detected at the reporting limit. Page 7 of 35 EN:RGY ,\ ,. '\ I f II '_ www.energylab.com AN/tflI;M ~ stc. '152 Helena, MT 817-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 GlliaIta, WY 186-&88-7175 • Rapid City, SD 188-172-1225 • College Station, TX 881-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10107/11 Report Date: 10104/11 Collection Date: 08/30/11 13:30 DateReceived: 09/01/11 Matrix: Aqueous Client: Denison Mines USA Corp Project: Lab 10: 3rd Quarter Groundwater Resample 2011 C11090045-001 Client Sample 10: MW-14 Analyses MAJOR IONS Calcium Magnesium Nitrogen, Ammonia as N Nitrogen, Nitrate+Nitrite as N Potassium Sodium METALS -DISSOLVED Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc RADIONUCLIDES -DISSOLVED Gross Alpha minus Rn & U Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MOC Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result Units 506 mg/L 155 mg/L NO mg/L NO mg/L 12.2 mg/L 363 mg/L NO ug/L NO ug/L 1.63 ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L 1990 ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L 76.4 ug/L NO ug/L 12 ug/L 0.5 pCilL 0.2 pCilL 0.2 pC ilL MOC -Minimum detectable concentration MCL! Qualifier Rl QCl Method Analysis Date 1 By 0.5 E200.7 09/14/11 14:49 1 cp 0.5 E200.7 09/14/11 14:491 cp 0.05 A4500-NH3 G 09/02/1115:21/dc 0.1 E353.2 09/01/11 18:391 dc 0.5 E200.7 09/14/11 14:491 cp 0.5 E200.7 09/14/11 14:49 1 cp 5.0 E200.8 09/02/11 15:52 1 sml 0.50 E200.8 09/07/11 20:391 sml 0.50 E200.8 09/02/11 15:52 1 sml 25 E200.8 09/02/11 15:521 sml 10 E200.8 09/02/11 15:521 sml 10 E200.8 09/02/11 15:521 sml 30 E200.7 09/14/11 14:491 cp 1.0 E200.8 09/02/11 15:521 sml 10 E200.8 09/02/11 15:521 sml 0.50 E200.8 09/02/11 15:521 sml 10 E200.8 09/02/11 15:521 sml 20 E200.8 09/06/11 13:21 1 sml 5.0 E200.8 09/02/11 15:521 sml 10 E200.8 09/02/11 15:52 1 sml 0.50 E200.8 09/02 /11 15:52 1 sml 100 E200.8 09/02/11 15:52 1 sml 0.30 E200.8 09/02/11 15:521 sml 15 E200.8 09/02/11 15:521 sml 10 E200.8 09/02/11 15:521 sml E900.1 09/15/11 15:471 ep E900.1 09/15/11 15:47 1 ep E900.1 09/15/11 15:471 ep MCL -Maximum contaminant leve\. NO -Not detected at the reporting limit. Page 3 of 20 EN:RGY " A ~CII..(.'\I U P I '-, www.energylab.com AMIftIcrI ER.JIMu SInu 1m HBkma, MT 811-472-0711 • Billings, MT 800·135·4489 • Casper, WY 888-235-0515 GlllattB, WY 811-186-7115 • Rapid City, SD 888-172-1225 • College Station, TX 888-&90-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab ID: Denison Mines USA Corp 3rd Quarter Groundwater 2011 C11080529-006 Client Sample ID: MW-18 Analyses MAJOR IONS Sulfate PHYSICAL PROPERTIES Solids, Total Dissolved TDS @ 180 C METALS -DISSOLVED Thallium Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result 1910 3190 4.00 D -RL increased due to sample matrix. Units mg/L mg/L ug/L Report Date: 09/14/11 Collection Date: 08/10/11 14:20 DateReceived: 08/12/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date 1 By D 50 A4500-S04 E 08/22111 16:551 Ijl 10 A2540 C 08/12111 16:331 wc 0.50 E200.8 08/17/11 18:371 sml MCL -Maximum contaminant level. ND -Not detected at the reporting limit. Page 9 of 38 EI\ERGY , 1\·~uP/\t UHlc :...::. Helons, MT 811-472-0711 • BIllings, MT BOD-735-4418 • casper, WY 888-235-D515 Gillette, W'f 8&&-&8&-7115 • Rapid CilJ, SD 888-872-1225 • College Station, TX 888-610.2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: LablD: Denison Mines USA Corp 3rd Quarter Groundwater 2011 C11090914-001 Client Sample 10: MW-18 Analvses METALS -DISSOLVED Thallium Report Definitions: Rl -Analyte reporting limit. QCl -QuaUty control limit. Result Units Qualifier Rl 0.50 Report Date: 10/04/11 Collection Date: 09/21/11 15:00 DateReceived: 09/23/11 Matrix: Aqueous MCL! QCl Method Analysis Date I By E200.8 09/30/11 23:13{ 8ml MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 3 of 8 EN:RGY :....' B . I~ • I ) --Il J www.energylab.com ~/w.n.-SInu '1151 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Gasper, WY 888-235-0515 Gillette, WY 8&8-686-7175 • Rapid City, SO 888-672-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10/06/11 Report Date: 09/01/11 Collection Date: 08/04/11 07:45 DateReceived: 08/05/11 Matrix: Aqueous Client: Project: Lab 10: Denison Mines USA Corp 3rd Quarter Groundwater 2011 Cll080269-001 Client Sample 10: MW-24 Analyses METALS· DISSOLVED Cadmium Thallium Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result 1.46 ND MCll Units Qualifier Rl QCl Method Analysis Date 1 By ug/L 0.50 E200.8 08/09/11 07:21 1 sml ug/l 0.50 E200.8 08/09/11 07:21 I sml MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 4 of 35 American West .... Nfli YTICAI I AnORATORtfS 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer ORGANIC ANALYTICAL REPORT Client: Denison Mines Project: 3rd Quarter Ground Water 2011 Lab Sample ID: 1108108-003A Client Sample ID: MW-25 Collection Date: 8/3/2011 1045h Received Date: 8/512011 Analytical Results Analyzed: 8/512011 1352h Units: flg/L Dilution Factor: 1 Compound Tetrahydrofuran Surr: 1,2-Dichloroethane-d4 Surr: 4-Bromofluorobenzene Surr: Dibromofluoromethane Surr: Toluene-d8 0945h Contact: Jo Ann Tischler Method: SW8260C VOAs by GC/MS Method 8260CI5030C CAS Reporting Analytical Number Limit Result Qual 109-99-9 1.00 < 1.00 17060-07-0 77-144 98.7 460-00-4 80-123 110 1868-53-7 80-124 97.8 2037-26-5 80-125 102 Report Date: 8/12/2011 Page 6 of29 All analyses applicable 10 Ihe CWA, SDWA, and RCRA arc pcrfomlcd in acco~dancc (0 NELAC protocols. Pertinent sampling infonnation is located on the att3ch~d CDC. This report is provided ror the exclusive usc oflhc addressee. Privileges of subst!qucnl use oflhc n:IIU~ oflhis company or any member of il:;;: staff. or reproduction of this report in connection with the advcrtiscuu:nt. promotion or sale of tiny product or proccss; or in connection with thc re-publication of this report fur any purpose other than for the addressee will be granted only on contact This company ac(;epls no responsibility c,...cepl for the due perfomlance of inspc(;lion andlor analysis in good faith and according to the rulL'S of Ihe trade find of science EN:RGY _f,E:i!.'R/I :.->I L~ www.energylab.com ~/ExMIInuSinu 11152 Helena, MT 877-472-0711 • Billings, MT 800-135-4489 • Casper, 'NY 888-235-0515 Gillette, WY 81&-&8&-7175 • Rapid City, SO 888-672-1225 • College Station, 1)( 888-&90-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10/06/11 Client: Denison Mines USA Corp Report Date: 09/01/11 Project: 3rd Quarter Groundwater 2011 Collection Date: 08/03/11 10:45 Lab ID: C11080269-005 DateReceived: 08/05/11 Client Sample ID: MW-25 Matrix: Aqueous MCll Analyses Result Units Qualifier Rl QCl Method Analysis Date 1 By MAJOR IONS Carbonate as C03 ND mg/L A2320 B 08/05/11 18:531 jba Bicarbonate as HC03 382 mg/L A2320 B 08/05/11 18:531 jba Chloride 32 mg/L A4500-CI B 08/10/1112:13/wc Fluoride 0.31 mg/L 0.10 A4500-F C 08/08/11 12:31 1 jba Nitrogen, Ammonia as N 0.41 mg/L 0.05 A4500-NH3 G 08/11/11 14:391 dc Nitrogen, Nitrat&+Nitrite as N ND mg/L 0.1 E353.2 08/08/11 13:101 dc Sulfate 1660 mg/L D 50 A4500-S04 E 08/22111 15:51 Iljl PHYSICAL PROPERTIES pH 7.82 S.u. 0.01 A4500-H B 08/05/11 16:05 1 wc Solids, Total Dissolved TDS @ 180 C 2830 mg/L 10 A2540 C 08/09/11 16 :04 1 wc DATA QUALITY NC Balance (± 5) 0.536 % Calculation 1 0106111 16 :03 1 sdw Anions 41.7 meq/L Calculation 10106/11 16:031 sdw Cations 42.2 meq/L Calculation 10106/11 16:031 sdw Solids, Total Dissolved Calculated 2700 mg/L Calculation 10106/11 16:031 sdw TDS Balance (0.80 -1.20) 1.05 Calculation 10106/11 16:031 sdw -The Anion I Cation balance was calculated using the cation results from workorder C11 090045. VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes, Total Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. ND ND ND ND ND ND ND ND ND ND 100 101 95.0 85.0 D -RL increased due to sample matrix. ug/L 20 SW8260B 08/08/11 18:021 jlr ug/L 1.0 SW8260B 08/08/11 18:021 jlr ug/L 1.0 SW8260B 08/08/11 18:021 ilr ug/L 1.0 SW8260B 08/08/11 18:02/ ilr ug/L 1.0 SW8260B 08/08/11 18:02 1 jlr ug/L 20 SW8260B 08/08/11 18:02/ ilr ug/L 1.0 SW8260B 08/08/11 18:021 ilr ug/L 1.0 SW8260B 08/08/11 18:02/ jlr ug/L 1.0 SW8260B 08/08/11 18:021 jlr ug/L 1.0 SW8260B 08/08/11 18:02/ ilr %REC 80-120 SW8260B 08/08/11 18:021 ilr %REC 70-130 SW8260B 08/08/11 18:02 / jlr %REC 80-120 SW8260B 08/08/11 18:021 jlr %REC 80-120 SW8260B 08/08/11 18 :02 / ilr MCL -Maximum contaminant level. ND -Not detected at the reporting limit. Page 80f35 EI\ERGY r\-~( I It. 11 -, III " www.energylab.com AMt1fIcII~ SIIu 1111 Helena, MT 877-472-0711 -Billings, MT 800-135-44811 -Casper, WY 888-235-0515 Gillette, WY 88&-8BB-7175 -Rapid City, SD 888-112-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10/07/11 Report Date: 10/04/11 Collection Date: 08/30/11 10:45 DateReceived: 09/01/11 Matrix: Aqueous Client: Denison Mines USA Corp Project: Lab ID: 3rd Quarter Groundwater Resample 2011 C 11090045-004 Client Sample 10: MW-25 Analyses MAJOR IONS Calcium Magnesium Potassium Sodium METALS -DISSOLVED Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc RADIONUCLIDES -DISSOLVED Gross Alpha minus Rn & U Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MOC Report Definitions: RL -Analyte reporting limit. QCl -Quality control limit. Result Units 367 mg/L 123 mg/l 9.8 mg/l 310 mg/l NO ug/l NO ug/l 1.19 ug/l NO ug/l NO ug/l NO ug/l NO ug/l NO ug/l 1330 ug/l NO ug/l 12 ug/l NO ug/l NO ug/l NO ug/l 0.99 ug/l NO ug/l 6.37 ug/l NO ug/l NO ug/l 0.6 pCi/l 0.2 pCi/l 0.2 pCi/l MOC -Minimum detectable concentration MCL! Qualifier Rl QCl Method Analysis Date 1 By 0.5 E200.7 09/14/11 15:131 cp 0.5 E200.7 09/14/11 15:131 cp 0.5 E200.7 09/14/1115:13/cp 0.5 E200.7 09/14/11 15:131 cp 5.0 E200.8 09/02/11 16:091 sml 0.50 E200.8 09/07/11 21 :13 1 sml 0.50 E200.8 09/02/11 16:091 sml 25 E200.8 09/06/11 13:531 sml 10 E200.8 09/06/11 13:531 sml 10 E200.8 09/02/11 16:091 sml 30 E200.7 09/14/1115:13/cp 1.0 E200.8 09/02/11 16:091 sml 10 E200.8 09/06/11 13:531 sml 0.50 E200.8 09/02/11 16:091 sml 10 E200.8 09/02/11 16:091 sml 20 E200.8 09/06/11 13:531 sml 5.0 E200.8 09/02/11 16:091 sml 10 E200.8 09/02/11 16:091 sml 0.50 E200.8 09/02/11 16:091 sml 100 E200.8 09/02/11 16:091 sml 0.30 E200.8 09/02/11 16:091 sml 15 E200.8 09/06/11 13:53 I sml 10 E200.8 09/02/11 16:09 I sml E900.1 09/15/11 17:56 I ep E900.1 09/15/11 17:56 I ep E900.1 09/15/11 17:56 I ep MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 6 of 20 ORGANIC ANALYTICAL REPORT American West ANAl '(TICAl IltrtORATORlf ~ Client: Denison Mines Project: Lab Sample ID: 3rd Quarter Ground Water 2011 1108108-004A Client Sample ID: MW-26 Collection Date: 8/312011 Received Date: 8/5/2011 Analytical Results Analyzed: 8/5/2011 1411h Units: Ilg/L 0835h 0945h 463 West 3600 South Dilution Factor: 1 Salt Lake City, UT 84115 Compound Contact: Jo Ann Tischler Method: SW8260C VOAs by GC/MS Method 8260CIS030C CAS Reporting Analytical Number Limit Result Qual ------------------------------------------------------------------- Phone: (801)263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com web: www.awal-Iabs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer Tetrahydrofuran Surr: 1,2-Dichloroethane-d4 Surr: 4-Bromofluorobenzene Surr: Dibromofluoromethane Surr: Toluene-d8 109-99-9 17060-07-0 460-00-4 1868-53-7 2037-26-5 1.00 < 1.00 77-144 101 80-123 107 80-124 101 80-125 101 Report Date: 8/12/2011 Page 7 of 29 All analyses applicable 10 the CWA. SDWA, and RCRA are performed in accordance to NELAC protocols Pertinent sampling infcm1l8tion is located on Iht! aUached COC This report is provided ror the exclusive usc orlhe addressee Privileges of subsequent usc ofthe naUle of Ihis company df any member of it.o; 513ff, or reproduction oflhis report in connection with Ihe advertisement, promotion or sale of any product or process, or in connection with the rc~publicalion of this report tor any purpose other than for lhe addressee will be granted only On contact. This company accepts no responsibility excepl for the due pt:rfonnancc of inspedion and/or analysis in good faith and (lCcording to the rulC'S onhe trade and of science EN:RGY LI\BOHI\TO"~ILS www.energylab.com ~/~SInu'952 Helena, PM 877-472-D711 • Billings, MTBOD-735-4489 • Casper, WY 888-235-0515 Gillette, WY 866-686-7175 • Rapid City, SO 888-672-1225 • College Station, 1X 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10/06/11 Report Date: 09/01/11 Collection Date: 08/03/11 08:35 DateReceived: 08/05/11 Matrix: Aqueous Client: Denison Mines USA Corp Project: Lab 10: 3rd Quarter Groundwater 2011 C 11080269-006 Client Sample 10: MW-26 Analyses Result MAJOR IONS Carbonate as C03 ND Bicarbonate as HC03 397 Chloride 60 Fluoride 0.27 Nitrogen, Ammonia as N 0.27 Nitrogen, Nitrate+Nitrite as N 0.6 Sulfate 1950 PHYSICAL PROPERTIES pH 7.72 Solids, Total Dissolved TDS @ 180 C 3190 DATA QUALITY NC Balance (± 5) -1.75 Anions 48.8 Cations 47.1 Solids, Total Dissolved Calculated 3090 TDS Balance (0.80 -1.20) 1.03 Units mg/L mg/L mg/L mg/L mg/L mg/L mglL s.u. mg/L % meq/L meq/L mg/L MCL! Qualifier Rl QCl Method Analysis Date 1 By A2320 B 08/05/11 19:021 jba A2320 B 08/05/11 19:02 1 jba A4500-CI B 08/10/1112:16/wc 0.10 A4500-F C 08/08/11 12:421 jba 0.05 A4500-NH3 G 08/11/11 14:41 1 dc 0.1 E353.2 08/08/11 13:121 dc 0 50 A4500-S04 E 08/22/11 15:591 Ijl 0.01 A4500-H B 08/05/11 16:131 wc 10 A2540 C 08/05/11 17:23 1 Imc Calculation 10/06/11 16:041 sdw Calculation 10/06/11 16:04 1 sdw Calculation 1 0/06/11 16 :04 1 sdw Calculation 10/06/11 16:041 sdw Calculation 10/06/11 16:041 sdw -The Anion I Cation balance was calculated using the cation results from workorder C11090045. VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes, Total Surr: 1,2-Dichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-dB Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. NO NO ND 1000 NO ND 10 NO ND NO 99.0 100 88.0 88.0 D -RL increased due to sample matrix. ug/L 20 SW8260B 08/09/11 07:231 jlr ug/L 1.0 SW8260B 08/09/11 07:23 1 jlr ug/L 1.0 SW8260B 08/09/11 07:23 1 jlr ug/L 0 100 SW8260B 08/09/11 06:471 jlr ug/L 1.0 SW8260B 08/09/11 07:23 1 jlr ug/L 20 SW8260B 08/09/11 07:23 1 ilr ug/L 1.0 SW8260B 08/09/11 07:23 1 ilr ug/L 1.0 SW8260B 08/09/11 07:231 ilr ug/L 1.0 SW8260B 08/09/11 07:23 1 jlr ug/L 1.0 SW8260B 08/09/11 07:23 1 jlr %REC 80-120 SW8260B 08/09/11 07:23 1 ilr %REC 70-130 SW8260B 08/09/11 07:231 ilr %REC 80-120 SW8260B 08/09/11 07:231 ilr %REC 80-120 SW8260B 08/09/11 07:23 1 ilr MCL -Maximum contaminant level. ND -Not detected at the reporting limit. Page 9 of 35 Er\ERGY ...... -'I --I ~ I I' ! ~:' " www.energy1ab.com Au/tfIcM~ .. 7m Helena, flIT 177-472-0711 • Billings, MY 800-135-4489 • Casper, WY 888-235-0515 Gillette, WY 818-188-1175 • Rapid City, SD 888-112-1225 • Collage station, lX 888-&90-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10/07/11 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater Resample 2011 LablD: C 11090045-006 Client Sample ID: MW-26 Analyses MAJOR IONS Calcium Magnesium Potassium Sodium METALS -DISSOLVED Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc RADIONUCLIDES -DISSOLVED Gross Alpha minus Rn & U Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MOC Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result Units 482 mg/L 159 mg/L 10.7 mg/L 222 mg/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L 1280 ug/L NO ug/L 984 ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L 19.0 ug/L NO ug/L NO ug/L 2.7 pCi/L 0.4 pCi/L 0.2 pCi/L MOC -Minimum detectable concentration Report Date: 10/04/11 Collection Date: 08/30/11 11:10 DateReceived: 09/01/11 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date 1 By 0.5 E200.7 09/14/11 15:291 cp 0.5 E200.7 09/14/11 15:291 cp 0.5 E200.7 09/14/11 15:291 cp 0.5 E200.7 09/14/11 15:291 cp 5.0 E200.8 09/02/11 16:261 sml 0.50 E200.8 09/09/11 00:101 sml 0.50 E200.8 09/02/11 16:261 sml 25 E200.8 09/07/11 21 :231 sml 10 E200.8 09/09/11 00:101 sml 10 E200.8 09/07/11 21 :23 1 sml 30 E200.7 09/14/11 15:291 cp 1.0 E200.8 09/02/11 16:261 sml 10 E200.8 09/09/11 00:101 sml 0.50 E200.8 09/02/11 16:261 sml 10 E200.8 09/02/11 16:261 sml 20 E200.8 09/07/11 21 :231 sml 5.0 E200.8 09/02/11 16:261 sml 10 E200.8 09/02/11 16:261 sml 0.50 E200.8 09/02/11 16:261 sml 100 E200.8 09/02/11 16 :26 1 sml 0.30 E200.8 09/06/11 13:591 sml 15 E200.8 09/07/11 21 :23 1 sml 10 E200.8 09/02/11 16:26 1 sml E900.1 09/15/11 17:561 ep E900.1 09/15/11 17:561 ep E900.1 09/15/11 17:561 ep MCL -Maximum contaminant level. NO -Not detected at the reporting limit. Page 8 of20 EI'ERGY (\",LJf ~J\I OH'1 ~; WWN.energylab.com bI/JIII:Il fIuIIIncI SInu 1m Helena, MT 871-412-0711 • Billings, MT 800-135-4481 • Casper, WY 888-235-0515 Gillette, WY 818-188-1175 • Rapid City, SD 888-872-1225 • CollegeStation,lX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab 10: 3rd Quarter Groundwater 2011 C11080529-007 Client Sample 10: MW-27 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N Sulfate PHYSICAL PROPERTIES Solids, Total Dissolved TDS @ 180 C RADIONUCLIDES -DISSOLVED Gross Alpha minus Rn & U Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MDC Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result 43 6.0 424 1090 0.8 0.2 0.1 Units mg/L mg/L mg/L mg/L pCi/L pCi/L pCi/L MDC -Minimum detectable concentration Report Date: 09/14/11 Collection Date: 08/08/11 12:20 DateReceived: 08/12/11 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date 1 By 0 0 A4500-CI B 08/22/11 11 :44 1 wc 0.2 E353.2 08/16/11 14:26 1 dc 10 A4500-S04 E 08/22111 17:01 /Iii 10 A2540 C 08/12111 16:331 wc E900.1 09/01/1119:00/ep E900.1 09/01/11 19:001 ep E900.1 09/01/11 19:001 ep MCL -Maximum contaminant level. NO -Not detected at the reporting limit. D -RL increased due to sample matrix. Page 10 of 38 EN:RGY ''\':-jOP/\I Oltl' ',.3. Client: Project: Lab 10: www.energylab.com __ /~SIIIu 'flU Helena, MT 871-412-0711 • Billings, MT 800·135·4489 • Casper, WY 888-235-D515 Gillette, WY 818-B81· 7175 • Rapid City, so 888·672·1225 • Conege Station, TX 888·690·221 8 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Denison Mines USA Corp 3rd Quarter Groundwater 2011 C11080529-008 Client Sample 10: MW-28 Report Date: 09/14/11 Collection Date: 08/08/11 11 :20 DateReceived: 08/12/11 Matrix: Aqueous Analyses MAJOR IONS Chloride Report Definitions: Rl -Analyte reporting limit. QCL -Quality control limit. Result Units 105 mg/l MCLt Qualifier Rl QCl Method Analysis Date I By A4500-CI B 08/22111 11 :47 / wc MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 11 of 38 EN:RGY "hUP)·~I ',I~" J www.energylab.com AM/fIlI:I/ El1:I/IMa SInu 1m Helen., tiT 871-472·0711 • BIllings, tiT 800-135-4489 · Casper, W'f 881-235-0515 Gillette, WY 888-881·7175 • Rapid City, SO 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp 3rd Quarter Groundwater 2011 C11080529-009 Client Sample 10: MW-29 Analyses METALS· DISSOLVED Iron Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 1080 ug/l Qualifier RL 30 Report Date: 09/14/11 Collection Date: 08/09/11 09:45 DateReceived: 08/12/11 Matrix: Aqueous MCL! QCL Method Analysis Date 1 By E200.7 09/13/11 14:06 1 cp MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 12 of 38 American West III AI VTltd" t AAOKATORH. 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-labs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer ORGANIC ANALYTICAL REPORT Client: Denison Mines Project: Lab Sample ID: 3rd Quarter Ground Water 2011 1108108-005A Client Sample ID: MW-30 Collection Date: 8/3/2011 Received Date: 8/5/2011 Analytical Results Analyzed: 8/5/2011 1508h Units: Ilg/L Dilution Factor: 1 Compound Tetrahydrofuran Surr: 1,2-Dichloroethane-d4 Surr: 4-Bromofluorobenzene Surr: Dibromofluoromethane Surr: Toluene-d8 1445h 0945h Contact: Jo Ann Tischler Method: SW8260C VOAs by GC/MS Method 8260CI5030C CAS Reporting Analytical Number Limit Result Qual 109-99-9 1.00 < 1.00 17060-07-0 77-144 103 460-00-4 80-123 111 1868-53-7 80-124 101 2037-26-5 80-125 101 Report Date: 8112/2011 Page 8 of 29 All analyses applicable to the CW A, SDWA, and ReRA are pcrfamed in accordance to NELAC protocols Pertinent sampling intbnnalion is located on the attached coe This report is provided for the exclusive usc orlh\! addrcsscc_ Privileges of subsequent usc of the name of this company or any ruember of its staff, or-reproduction of Ihis rcport in connection with the advertisement, promotion or sale of any product or process. or in connection with the re-publication of this report fl}f any purpose othor than for the addressee will be granted only on contact, TIlis company accepts no responsibility except for the due pcrfonnancc of inspection andloT analysis in good faith and according to the rules orthe trade and of science EN:RGY L"r: :)Rr,I C~:It:.: www.energylab.com AMITIftMEz~." 1152 Helena, MT 877-472-0711 • Billings, MT 800·135·4489 • Casper, WY 888·235·0515 Gillette, WY 8&6-&8&·1115 • Rapid City, SO 888·612·1225 • College Station, IX 888-690·2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10/06/11 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Lab 10: C 11080269-007 Client Sample 10: MW-30 Analyses MAJOR IONS Carbonate as C03 Bicarbonate as HC03 Calcium Chloride Fluoride Magnesium Nitrogen, Ammonia as N Nitrogen, Nitrate+Nitrite as N Potassium Sodium Sulfate PHYSICAL PROPERTIES pH Solids, Total Dissolved TDS @ 180 C METALS· DISSOLVED Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc RADIONUCLIDES -DISSOLVED Gross Alpha minus Rn & U Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MDC Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result ND 176 263 126 0.33 66.7 ND 14 6.8 102 768 7.98 1550 ND ND ND ND ND ND 38 ND 27 ND ND ND 39.7 ND ND ND 8.00 ND ND 1.1 0.7 1 Units mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L S.u. mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L pCi/L pCi/L pC ilL MDC -Minimum detectable concentration Report Date: 09/01/11 Collection Date: 08/03/11 14:45 DateReceived: 08/05/11 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date I By D D A2320 B 08/05/11 19:321 jba A2320 B 08/05/11 19 :32 I jba 0.5 E200.7 08/15/11 13:46 1 cp 1 A4500-CI B 08/10/11 12:291 wc 0.10 A4500-F C 08/08/11 12:451 jba 0.5 E200.7 08/15/11 13:46 1 cp 0.05 A4500-NH3 G 08/11/11 14:431 dc 1 E353.2 08/08/11 13:151 dc 0.5 E200.7 08/15/11 13:461 cp 0.5 E200.7 08/15/11 13:461 cp 20 A4500-S04 E 08/22/11 16:04 I Ijl 0.01 A4500-H B 08/05/11 16:23 I wc 10 A2540 C 08/05/11 17:23 Ilmc 5.0 E200.8 08/09/11 08:05 I sml 0.50 E200.8 08/09/11 08:05 I sml 0.50 E200.8 08/09/11 08 :051 sml 25 E200.8 08/09/11 08 :051 sml 10 E200.8 08/09/11 08 :051 sml 10 E200.8 08/09/11 08:05 I sml 30 E200.7 08/15/11 13:46 1 cp 1.0 E200.8 08/09/11 08 :05 1 sml 10 E200.8 08/09/11 08:05 I sml 0.50 E200.8 08/09/11 08 :051 sml 10 E200.8 08/09/11 08:05 I sml 20 E200.8 08/09/11 08:051 sml 5.0 E200.8 08/09/11 08 :051 sml 10 E200.8 08/09/11 08:05 I sml 0.50 E200.8 08/09/11 08 :051 sml 100 E200.8 08/09/11 08:05 I sml 0.30 E200.8 08/09/11 OB:051 sml 15 E200.8 08/09/11 08:051 sml 10 E200.B 08/30/11 19:281 sml E900.1 08/18/11 13:231 ep E900.1 08/18111 13:231 ep E900.1 08/18/11 13:231 ep MCL -Maximum contaminant level. ND -Not detected at the reporting limit. D -RL increased due to sample matrix. P~ge 10 of 35 EN:RGY _I I:..: _ r~ (I )'-1',_' www.energylab.com Anl/ffH2I EsN/IMu SbJa 1m Helena, MT 877-472-0111 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 866-&8&-7175 • Rapid City, SD 888-&72-1225 • College Stallon, IX 888-&90-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10/06/11 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 LablD: C11080269-007 Client Sample 10: MW-30 Analyses DATA QUALITY NC Balance (± 5) Anions Cations Solids, Total Dissolved Calculated TDS Balance (0.80 -1.20) VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes, Total Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result -0.516 23.4 23.2 1500 1.03 NO NO NO NO NO NO NO NO NO NO 100 108 93.0 85.0 Report Date: 09/01/11 Collection Date: 08/03/11 14:45 DateReceived: 08/05/11 Matrix: Aqueous MCL! Units Qualifier Rl QCl Method Analysis Date 1 By % Calculation 08/30/11 09:251 sdw meq/L Calculation 08130/11 09:251 sdw meq/L Calculation 08130/11 09 :25 1 sdw mg/L Calculation 08/30/11 09:251 sdw Calculation 08/30/11 09:251 sdw ug/L 20 SW8260B 08/08/11 18:38 1 jlr ug/L 1.0 SW8260B 08/08/11 18:381 jlr ug/L 1.0 SW8260B 08/08/11 18:381 jlr ug/L 1.0 SW8260B 08/08/11 18:381 jlr ug/L 1.0 SW8260B 08/08/11 18:381 jlr ug/L 20 SW8260B 08/08/11 18:381 jlr ug/L 1.0 SW8260B 08/08/11 18:381 jlr ug/L 1.0 SW8260B 08/08/11 18:381 jlr ug/L 1.0 SW8260B 08/08/11 18:381 jlr ug/L 1.0 SW8260B 08/08/11 18:381 jlr %REC 80-120 SW8260B 08/08/11 18 :38 1 jlr %REC 70-130 SW8260B 08/08/11 18 :38 1 jlr %REC 80-120 SW8260B 08/08/11 18:38 1 jlr %REC 80-120 SW8260B 08/08/11 18:381 jlr MCL -Maximum contaminant level. NO -Not detected at the reporting limit. Page 11 of 35 Arnerican West ANAlYTICAl I AOOR.\TORlrS 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer ORGANIC ANALYTICAL REPORT Client: Denison Mines Project: Lab Sample ID: 3rd Quarter Ground Water 2011 1108108-006A Client Sample ID: MW-31 Collection Date: 8/2/2011 Received Date: 8/5/2011 Analytical Results Analyzed: 8/5/2011 1527h Units: j.1g/L Dilution Factor: 1 Compound Tetrahydrofuran SUff: 1,2-Dichloroethane-d4 Surr: 4-Bromofluoroben zene SUff: Dibromofluoromethane Surr: Toluene-d8 1400h 0945h Contact: Jo Ann Tischler Method: SW8260C VOAs by GC/MS Method 8260C/S030C CAS Reporting Analytical Number Limit Result Qual 109-99-9 1.00 < 1.00 17060-07-0 77-144 104 460-00-4 80-123 113 1868-53-7 80-124 101 2037-26-5 80-125 101 Report Date: 8112/2011 Page 9 of29 All analyses applicable to the CWA, SDWA, and ReRA are performed in accordance to NELAC protocol:;;. Pl,!rtincnt sampling infomlalion is located on the nUached cae This report is provided for Ihe exclusive usc oflhe addres.c;cc Privileges of subsequent us!!' of the name of this company or1tny member of its starT, or reproduction of this report in connection with the advertisement, promotion or sate of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company neccpts no responsibility except for the due perfonnance of inspection and/or analysis in good faith and according La the rules of the trade and of science EN:RGY ,-/\1;',--1 [1/\1 ':'G'IL!- www.energylab.com AHIftit2/ m.n.nu smc. 11152 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 866-68&-7175 • Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10/06/11 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Lab 10: C11080269-008 Client Sample 10: MW-31 Analyses MAJOR IONS Carbonate as C03 Bicarbonate as HC03 Calcium Chloride Fluoride Magnesium Nitrogen, Ammonia as N Nitrogen, Nitrate+Nitrite as N Potassium Sodium Sulfate PHYSICAL PROPERTIES pH Solids, Total Dissolved TDS @ 180 C METALS -DISSOLVED Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc RADIONUCLIDES -DISSOLVED Gross Alpha minus Rn & U Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MOC Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result ND 199 172 148 0.80 81.2 ND 20 5.7 95.3 537 7.80 1300 ND ND NO ND ND ND ND ND ND ND ND NO 66.2 ND ND ND 7.68 ND ND 0.5 0.6 0.9 Units mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l S.u. mg/l ug/l ug/l ug/l ug/l ug/l ug/L ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l pCi/l pC ill pC ill MDC -Minimum delectable concentration U -Not detected at minimum deteclable concentration Report Date: 09/01/11 Collection Date: 08/02/11 14:00 DateReceived: 08/05/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date I By D D U A2320 B 08/05/11 19:40 I jba A2320 B 08/05/11 19:40 I jba 0.5 E200.7 08/15/11 14:02 I cp A4500-CI B 08/10/11 12:30 I wc 0.10 A4500-F C 08/08/11 12:50 I jba 0.5 E200.7 08/15/11 14:02 I cp 0.05 A4500-NH3 G 08/11/11 14:45 I dc 1 E353.2 08/08/1113:171 dc 0.5 E200.7 08/15/11 14:02 I cp 0.5 E200.7 08/15/11 14:02 I cp 10 A4500-S04 E 08/22111 16:09 I Ijl 0.01 A4500-H B 08/05/11 16 :35 I wc 10 A2540 C 08/05/11 17:24 Ilmc 5.0 E200.8 08/09/11 08:10 I sml 0.50 E200.8 08/09/11 08:10 I sml 0.50 E200.8 08/09/11 08:10 I sml 25 E200.8 08/09/11 08:10 I sml 10 E200.8 08/09/11 08:10 I sml 10 E200.8 08/09/11 08:101 sml 30 E200.7 08/15/11 14:02 I cp 1.0 E200.8 08/09/11 08:10 I sml 10 E200.8 08/09/11 08:10 I sml 0.50 E200.8 08/09/11 08:10 I sml 10 E200.8 08/09/11 08:10 I sml 20 E200.8 08/09/11 08:10 I sml 5.0 E200.8 08/09/11 08:10 I sml 10 E200.8 08/09/11 08:10 I sml 0.50 E200.8 08/09/11 08:10 I sml 100 E200.8 08/09/11 08:10 I sml 0.30 E200.8 08/09/1108:10/sml 15 E200.8 08/09/11 08:10 I sml 10 E200.8 08/30/11 19:33 I sml E900.1 08/18/11 15:31 I ep E900.1 08/18/11 15:31 I ep E900.1 08/18/11 15:31 I ep MCl -Maximum contaminant level. ND -Not detected at the reporting limit. D -Rl increased due to sample matrix. Page 12 of 35 EN:RGY LABOHATO~"IES www.energylab.com AHIytIa/ En:MIfnu .. 1m Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY B&6-&86-7175 • Rapid City, SO 888-672-1225 • CoUege Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10/06/11 Report Date: 09/01/11 Collection Date: 08/02/11 14:00 DateReceived: 08/05/11 Matrix: Aqueous Client: Denison Mines USA Corp Project: Lab 10: 3rd Quarter Groundwater 2011 C 11080269-008 Client Sample 10: MW-31 Analyses DATA QUALITY NC Balance (± 5) Anions Cations Solids, Total Dissolved Calculated TDS Balance (O.80 -1.20) VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes, Total Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result -1.28 20.1 19.6 1240 1.05 ND ND ND ND ND ND ND ND ND ND 94.0 102 90.0 86.0 MCL! Units Qualifier RL QCL Method Analysis Date 1 By % Calculation 08/30/11 09:25 1 sdw meq/L Calculation 08130/11 09:251 sdw meq/L Calculation 08130/11 09:251 sdw mg/L Calculation 08/30/11 09:251 sdw Calculation 08/30/11 09:251 sdw ug/L 20 SW8260B 08/08/11 19:151 jlr ug/L 1.0 SW8260B 08/08/11 19:151 jlr ug/L 1.0 SW8260B 08/08/11 19:151 jlr ug/L 1.0 SW8260B 08/08/11 19:151 jlr ug/L 1.0 SW8260B 08/08/11 19:151 jlr ug/L 20 SW8260B 08/08/11 19:151 jlr ug/L 1.0 SW8260B 08/08/11 19:151 jlr ug/L 1.0 SW8260B 08/08/11 19:151 jlr ug/L 1.0 SW8260B 08/08/11 19:151 jlr ug/L 1.0 SW8260B 08/08/11 19:151 jlr %REC 80-120 SW8260B 08/08/11 19:151 jlr %REC 70-130 SW8260B 08/08/11 19:151 jlr %REC 80-120 SW8260B 08/08/11 19:151 jlr %REC 80-120 SW8260B 08/08/11 19:151 jlr MCL -Maximum contaminant level. ND -Not detected at the reporting limit. Page 13 of 35 EN:RGY ") ',\1""1 ' www.energylab.com AN/yIIaI~SIIIu 1m Helena, MT 877-472-0711 • Billings, MT 8OD-735-4489 . Casper, WV 888-235-0515 Gillatta, WV 888-888-7175 • Rapid City, SD 888-&72-1225 • College Station, TX 888-&90-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10107/11 Report Date: 10104/11 Collection Date: 08/30/11 13:05 DateReceived: 09/01/11 Matrix: Aqueous Client: Denison Mines USA Corp Project: Lab 10: 3rd Quarter Groundwater Resample 2011 C11090045-002 Client Sample 10: MW-32 Analyses MAJOR IONS Calcium Magnesium Potassium Sodium METALS -DISSOLVED Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc RADIONUCLIDES -DISSOLVED Gross Alpha minus Rn & U Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MOC Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result Units 541 mg/L 231 mg/L 14.B mg/L 245 mg/L NO ug/L NO ug/L 0.94 ug/L NO ug/L 40 ug/L NO ug/l 5400 ug/L NO ug/L 5250 ug/L NO ug/L 11 ug/L 47 ug/L NO ug/L NO ug/L NO ug/L NO ug/L 2.39 ug/l NO ug/L 72 ug/L 1.9 pCilL 0.3 pCi/L 0.2 pCi/L MOC -Minimum detectable concentration MCL! Qualifier Rl QCl Method Analysis Date 1 By 0.5 E200.7 09/14/11 15:05 1 cp 0.5 E200.7 09/14/11 15:051 cp 0.5 E200.7 09/14/11 15:051 cp 0.5 E200.7 09/14/11 15:051 cp 5.0 E200.B 09/02/11 15:541 sml 0.50 E200.B 09/07/11 21 :04 1 sml 0.50 E200.8 09/06/11 13:241 sml 25 E200.8 09/02/11 15:541 sml 10 E200.8 09/02/11 15:54 1 sml 10 E200.B 09/02/11 15 :541 sml 30 E200.7 09/14/11 15:051 cp 1.0 E200.B 09/02/11 15:54 1 sml 10 E200.B 09/02/11 15:541 sml 0.50 E200.8 09/02/11 15:541 sml 10 E200.8 09/02/11 15:54 1 sml 20 E200.B 09/06/1113:24 /sml 5.0 E200.8 09/02/11 15:541 sml 10 E200.8 09/02/11 15:541 sml 0.50 E200.8 09/02/11 15:541 sml 100 E200.8 09/02/11 15:541 sml 0.30 E200.B 09/06/11 13 :241 sml 15 E200.8 09/02/11 15:541 sml 10 E200.8 09/02/11 15:54 1 sml E900.1 09/15/11 15:47 1 ep E900.1 09/15/11 15:47 1 ep E900.1 09/15/11 15:471 ep MCL -Maximum contaminant level. NO -Not detected at the reporting limit. Page 4 of 20 ORGANIC ANALYTICAL REPORT American West A,,-At'lTIC/d I AnOAAT0RlfS Client: Denison Mines Project: 3rd Quarter Ground Water 2011 Lab Sample ID: 1108108-007A Client Sample ID: MW-35 Collection Date: 8/2/20 II 1430h Received Date: 8/512011 Analytical Results Analyzed: 8/512011 1546h Units: Ilg/L 0945h 463 West 3600 South Dilution Factor: 1 Salt Lake City, UT 84115 Compound Contact: Jo Ann Tischler Method: SW8260C VOAs by GC/MS Method 8260C/S030C CAS Reporting Analytical Number Limit Result Qual ------------------------------------------------------------------- Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com web: www.awal-Iabs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer Tetrahydrofuran Surr: 1,2-Dichloroethane-d4 Surr: 4-Bromofluorobenzene Surr: Dibromofluoromethane Surr: Toluene-d8 109-99-9 17060-07-0 460-00-4 1868-53-7 2037-26-5 1.00 < 1.00 77-144 106 80-123 111 80-124 102 80-125 101 Report Date: 8/12/2011 Page 10 of29 All analyst!s applicable to the CWA, SOWA. and RCRA arc pcrfomlcd in accordance to NELAC protocols. P~rlinent sampling infonnalion is located on the attachcd CDC This report is providc~ for the exclusive use of the addressee. Privileges of subsequent usc uflhe name of this company or any member of its starr, or reproduction of this report in connection with the advertisement. promotion or sale of any product or process, Or1" connection wilh the rc~publication of this report for any purpose olher fhan for the addrcsset: will be granted only on contact TIl is company accepts no responsibility except for tilt;: due pcrfonnancc of inspL!ction and/or analysis in good faith and according to the rules of Ihe trade and of scicnce~ EI\ERGY _,\Ii.LJR"l'.'irl-_C' www.energylab.com ~/m.n.nuSlnu 11151 Helena, MT877-472-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515 Gillette, WY 8&&-&8&-7175 . Rapid City, SO 888-&12-1225 · College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10/06/11 Client: Denison Mines USA Corp Report Date: 09/01/11 Project: 3rd Quarter Groundwater 2011 Collection Date: 08/02/11 14:30 Lab 10: C 11080269-009 DateReceived: 08/05/11 Client Sample 10: MW-35 Matrix: Aqueous MCL! Analyses Result Units Qualifier Rl QCl Method Analysis Date I By MAJOR IONS Carbonate as C03 ND mg/l A2320 B 08/05/11 20:051 jba Bicarbonate as HC03 394 mg/l A2320 B 08/05/11 20:05 I jba Chloride 59 mg/l A4500-CI B 08/10/11 12:33 I wc Fluoride 0.37 mg/l 0.10 A4500-F C 08/08/11 12:531 jba Nitrogen, Ammonia as N 0.05 mg/l 0.05 A4500-NH3 G 08/11/11 14:47 I dc Nitrogen, Nitrate+Nitrite as N ND mg/l 0.1 E353.2 08/08/11 13:20 I dc Sulfate 2330 mg/L D 50 A4500-S04 E 08/22111 16:15/1j1 PHYSICAL PROPERTIES pH 7.84 S.u. 0.01 A4500-H B 08/05/11 16:451 wc Solids, Total Dissolved TDS @ 180 C 3720 mg/L D 11 A2540 C 08/05/11 17:24/1mc DATA QUALITY AlC Balance (± 5) 0.555 % Calculation 10/06/11 16:051 sdw Anions 56.7 meq/L Calculation 10/06/11 16:051 sdw Cations 57.3 meq/L Calculation 10/06/11 16:05 I sdw Solids, Total Dissolved Calculated 3720 mg/L Calculation 1 0/06/11 16 :05 I sdw TDS Balance (0.80 -1.20) 1.00 Calculation 10/06/11 16:051 sdw -The Anion I Cation balance was calculated using the cation results from workorder C11 090045. VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes, Total Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. ND ND ND ND ND ND ND ND ND ND 99.0 103 92.0 85.0 D -RL increased due to sample matrix. ug/L 20 SW8260B 08/08/11 19:51 I jlr ug/L 1.0 SW8260B 08/08/11 19:51 1 jlr ug/L 1.0 SW8260B 08/08/11 19:51 1 jlr ug/L 1.0 SW8260B 08/08/11 19:51 1 jlr ug/L 1.0 SW8260B 08/08/11 19:51 I jlr ug/L 20 SW8260B 08/08/11 19:51 I jlr ug/L 1.0 SW8260B 08/08/11 19 :51 I jlr ug/L 1.0 SW8260B 08/08/11 19:51 I jlr ug/L 1.0 SW8260B 08/08/11 19:51 1 jlr ug/L 1.0 SW8260B 08/08/11 19:51 1 jlr %REC 80-120 SW8260B 08/08/11 19 :51 I jlr %REC 70-130 SW8260B 08/08/11 19:51 1 jlr %REC 80-120 SW8260B 08/08/11 19:51 1 jlr %REC 80-120 SW8260B 08/08/11 19:51 1 jlr MCL -Maximum contaminant level. ND -Not detected at the reporting limit. Page 14 of 35 www.energylab.com AMIytk:M E1&tn.-SlR" 1m Helena, MT 877-412·0111 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515 Gillette, W'( 188-888-7115 • Rapid City, SD 188-172-1225 • Colluge Siallon, TX 888-880-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10107/11 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater Resample 2011 Lab ID: C11090045-005 Client Sample ID: MW-35 Analyses MAJOR IONS Calcium Magnesium Potassium Sodium METALS -DISSOLVED Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc RADIONUCLIDES -DISSOLVED Gross Alpha minus Rn & U Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MOC Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result Units 524 mg/L 155 mg/L 11.6 mg/L 416 mg/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L 207 ug/L NO ug/L 267 ug/L NO ug/L NO ug/L NO ug/L 9.3 ug/L NO ug/L 0.52 ug/L NO ug/L 18.3 ug/L NO ug/L NO ug/L 4.5 pCi/L 0.5 pC ilL 0.2 pC ilL MOC -Minimum detectable concentration Report Date: 10104/11 Collection Date: 08/30/11 14:35 DateReceived: 09/01 Iii Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date 1 By 0.5 E200.7 09/14/11 15:171 cp 0.5 E200.7 09/14/11 15:17 1 cp 0.5 E200.7 09/14/1115:17 /cp 0.5 E200.7 09/14/1115:17/cp 5.0 E200.8 09/02/11 16:23 1 sml 0.50 E200.8 09/07/11 21 :18 I sml 0.50 E200.8 09/02/11 16:23 1 sml 25 E200.8 09/07/1121 :18/sml 10 E200.8 09/07/1121:18 /sml 10 E200.8 09/06/11 13:561 sml 30 E200.7 09/14/11 15:17 /cp 1.0 E200.8 09/02/11 16:23 I sml 10 E200.8 09/07/11 21 :18 1 sml 0.50 E200.8 09/02/11 16:231 sml 10 E200.8 09/02/11 16:23 I sml 20 E200.8 09/06/11 13:56 I sml 5.0 E200.8 09/02/11 16:231 sml 10 E200.8 09/02/11 16:23 I sml 0.50 E200.8 09/02/11 16:23 I sml 100 E200.8 09/02/1 1 16 :23 I sml 0.30 E200.8 09/06/11 13:561 sml 15 E200.8 09/02/11 16:23 1 sml 10 E200.8 09/02/11 16:23 I sml E900.1 09/15/11 17:56 1 ep E900.1 09/15/11 17:561 ep E900.1 09/15/11 17:561 ep MCL -Maximum contaminant level. NO -Not detected at the reporting limit. Page 7of20 t, (; I, I y f .: I, I I. 'i~) ~.\ r ,'I n I J 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com web: www.awal-Iabs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer ORGANIC ANALYTICAL REPORT Client: Denison Mines Project: 3rd Quarter Ground Water 20 II Lab Sample ID: 1108246-001A Client Sample ID: MW-36 Collection Date: 8/9/2011 1150h Received Date: 811212011 0935h Analytical Results Analyzed: 8112/2011 1326h Units: )lg/L Dilution Factor: 1 Compound Tetrahydrofirran Surr: 1,2-Dichloroethane-d4 Surr: 4-Bromofluorobenzene Surr: Dibromofluoromethane SUIT: Toluene-d8 Contact: Jo Ann Tischler Method: SW8260C VOAs by GCIMS Method 8260CI5030C CAS Reporting Analytical Number Limit Result Qual 109-99-9 l.00 < l.00 17060-07-0 77-144 109 460-00-4 80-123 111 1868-53-7 80-124 104 2037-26-5 80-125 98.9 Report Date: 8/15/2011 Page 4 of 17 All analyses applicablc 10 the CWA, SDWA, and RCRA an~ perfomlcd in accordance to NELAC protocols Pertinent sampling infomHHion is located on (hI;! aHttchcd cae. This repon is provided for the cx:ciusivc use of the addressee. Privi1t~gcs of subsequent use oflh~ nalne orchis company or any member orits staff, or reproduction of this repon in connection with the advcrtisemellt. promotion or sale of any product or.process. or in connection with the re·publicalion oflhis report-for any purpose other than for the addressee will be granted only on contact. This cOlilpany accepts no responsibility except for the due perfonnancc of inspcclion andlor allalysis in good faith and Recording fo the rulcs of the trade and of science. EN:RGY ., :\l..,UI~,'\l:..,)'JI ~, .. www.energylab.com AM/ffIrM Em/IMu .. '151 Hulena, MT 871-412-0711 • Billings, MT 800·135·4488 • Casper, WY 888-235-0515 Gillatte, WY 816-188-7175 • Rapid City, SD 888·&12·1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Lab 10: C11080529-010 Client Sample 10: MW-36 Analyses MAJOR IONS Carbonate as C03 Bicarbonate as HC03 Calcium Chloride Fluoride Magnesium Nitrogen, Ammonia as N Nitrogen, Nitrate+Nitrite as N Potassium Sodium Sulfate PHYSICAL PROPERTIES pH Solids, Total Dissolved TDS @ 180 C METALS -DISSOLVED Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc RADIONUCLIDES -DISSOLVED Gross Alpha minus Rn & U Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MOC Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result ND 340 445 54 0.33 136 ND 0.2 9.8 716 2740 7.66 4320 ND ND NO NO ND NO NO NO NO ND NO NO 229 NO 0.84 ND 23.9 NO 35 0.3 0.1 0.1 Units mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L S.u. mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L pCi/L pCi/L pC ilL MOC -Minimum detectable concentration Report Date: 09/14/11 Collection Date: 08/09/11 11 :50 DateReceived: 08/12/11 Matrix: Aqueous MeL! Qualifier RL QCL Method Analysis Date 1 By D D D D A2320 B 08/12111 20:181 jba 1 A2320 B 08/12111 20:181 jba 0.6 E200.7 08/18/1115:19/cp 1 A4500-CI B 08/22/11 12:01 1 wc 0.10 A4500-F C 08/15/11 11 :30 1 jba 0.5 E200.7 08/18/11 15: 19 1 cp 0.05 A4500-NH3 G 08/15/11 12:471 dc 0.1 E353.2 08/16/11 14:29 1 dc 0.5 E200.7 08/18/1115:19/cp 0.9 E200.7 08/18/1115:19/cp 50 A4500-S04 E 08/22/11 17:05 I Ijl 0.01 A4500-H B 08/1211115:17/wc 13 A2540 C 08/12/11 16:341 wc 5.0 E200.8 08/17/11 01 :08 I sml 0.50 E200.8 08/18/11 22:191 sml 0.50 E200.8 08/17/11 01 :08 1 sml 25 E200.8 08/17/11 01 :08 I sml 10 E200.8 08/17/11 18:421 sml 10 E200.8 08/17/11 01 :08 1 sml 30 E200.7 08/18/11 15:191 cp 1.0 E200.8 08/17/11 01 :081 sml 10 E200.8 08/17/11 01 :08 I sml 0.50 E200.8 08/17/11 01 :08 1 sml 10 E200.8 08/17/11 01 :08 I sml 20 E200.8 08/17/11 01 :08 1 sml 5.0 E200.8 08/17/11 01 :081 sml 10 E200.8 08/17/11 01 :08 1 sml 0.50 E200.8 08/17/11 01 :08 I sml 100 E200.8 08/17/11 01 :08 I sml 0.30 E200.8 08/17/11 01 :08 1 sml 15 E200.8 08/17/11 01 :08 1 sml 10 E200.8 08/17/11 01 :08 1 sml E900.1 09/01/11 19:001 ep E900.1 09/01/1119:00/ep E900.1 09/01/11 19:001 ep MCL -Maximum contaminant level. NO -Not detected at the reporting limit. D -RL increased due to sample matrix. Page 13 of 38 EN:RGY i\-,OI·AfOHI " www.energylab.com AM/ffIaI Em/IwII:I SII!u 1/152 Helens, MT 871-412-0711 • BIllings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 816-186-7175 • Rapid City, so 888-&72-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Lab 10: C11 080529-01 0 Client Sample 10: MW-36 Analyses DATA QUALITY AlC Balance (± 5) Anions Cations Solids, Total Dissolved Calculated TDS Balance (0.80 -1.20) VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes, Total Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result 0.494 64.2 64.8 4290 1.01 ND ND ND ND ND ND ND ND ND ND 108 113 126 94.0 Units % meq/L meq/L mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L %REC %REC %REC %REC S -Spike recovery outside of advisory limits. Report Date: 09/14/11 Collection Date: 08/09/11 11 :50 DateRecelved: 08/12/11 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date 1 By Calculation 09/13/11 13 :20 1 sdw Calculation 09113/11 13:201 sdw Calculation 09113/11 13 :201 sdw Calculation 09/13/11 13 :201 sdw Calculation 09/13/11 13 :20 1 sdw 20 SW8260B 08/18/11 16:481 jlr 1.0 SW8260B 08/18/11 16 :481 jlr 1.0 SW8260B 08/18/11 16 :481 jlr 1.0 SW8260B 08/18/11 16:481 jlr 1.0 SW8260B 08/18/11 16:48 1 jlr 20 SW8260B 08/18/11 16:481 jlr 1.0 SW8260B 08/18/11 16 :48 1 jlr 1.0 SW8260B 08/18/11 16:48 1 jlr 1.0 SW8260B 08/18/11 16:481 jlr 1.0 SW8260B 08/18/11 16:481 jlr 80-120 SW8260B 08/18/11 16:481 jlr 70-130 SW8260B 08/18/11 16:48 1 jlr S 80-120 SW8260B 08/18/11 16:481 jlr 80-120 SW8260B 08/18/11 16:481 jlr MCL -Maximum contaminant level. ND -Not detected at the reporting limit. Page 14 of 38 ORGANIC ANALYTICAL REPORT Client: Project: Lab Sample ID: Denison Mines 3 rd Quarter Ground Water 20 II 1I08246-002A Client Sample ID: MW-37 A'''''T''''" tA"""ATOR '" Collection Date: 8/11/2011 0815h Received Date: 8/12/2011 0935h Analytical Results Analyzed: 8/1212011 1345h Units: Jlg/L 463 West 3600 South Dilution Factor: 1 Salt Lake City, UT 84115 Compound Contact: Jo Ann Tischler Method: SW8260C VOAs by GC/MS Method 8260C/S030C CAS Reporting Analytical Number Limit Result Qual ------------------------------------------------------------------- Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (80 I) 263-8687 e-mail: awal@awal-labs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer Tetrahydrofuran SUIT: 1,2-Dichloroethane-d4 SUIT: 4-Bromofluorobenzene Surr: Dibromofluoromethane Surr: Toluene-d8 109-99-9 17060-07-0 460-00-4 1868-53-7 2037-26-5 1.00 < 1.00 77-144 110 80-123 III 80-124 104 80-125 99.2 Report Date: 8/15/2011 Page 5 of 17 All analyses applicable to the CWA, SDWA, and RCRA are pcrfomlcd in accordance to. NELAC protocols. Pertinent sampling infom131ion is located on the attached COCo This Tt!port is provided for the exclusive use of the addressee. Privileges of subsequent usc oflhc name ofthi5 company or any member of its staff. or reproduction ofthi.s report"in conneclion with the advertisement. promotion or sale of any product or process, or in conneclion with the re·publication of this report for any purpose other than For the addressee will be granted only on contact. ntis company accepts no responsibility except for the due pcrfomlancc of inspection andlor analysis in good faith and according to the rules of Ihe trndc and of science. EI'ERGY _1\::-H.)IU d OPI~ :.; WMY.energyiab.com AM/fIIaI~SIIJu ltil Helena, MT 877-472-0711 • Billings, MT 800·735·4489 • Casper, WY 881-235-0515 Gillette, WY 881-888-7115 • Rapid City, SO 888-672-1225 • Colloge StatiDn, 1)( 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Lab 10: C11080529-011 Client Sample 10: MW-37 Analyses MAJOR IONS Carbonate as C03 Bicarbonate as HC03 Calcium Chloride Fluoride Magnesium Nitrogen, Ammonia as N Nitrogen, Nitrate+Nitrite as N Potassium Sodium Sulfate PHYSICAL PROPERTIES pH Solids, Total Dissolved TDS @ 180 C METALS -DISSOLVED Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc RADIONUCLIDES -DISSOLVED Gross Alpha minus Rn & U Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MDC Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result ND 291 457 55 0.30 129 ND 2.3 13.9 556 2440 7.53 3820 ND ND ND ND ND ND ND ND 115 ND ND ND ND ND ND ND 18.1 ND 45 0.6 0.1 0.1 Units mglL mg/L mg/L mg/L mg/L mg/L mglL mg/L mg/L mg/L mg/L s.u. mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L pCi/L pCi/L pCi/L MDC -Minimum detectable concentration Report Date: 09/14/11 Collection Date: 08/11/1108:15 DateReceived: 08/12/11 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date I By D D D D A2320 B 08/12/11 20:261 jba A2320 B 08/12111 20:26 I jba 0.6 E200.7 08/18/11 15:231 cp A4500-CI B 08/22111 12:03 I we 0.10 A4500-F C 08/1 5111 11 :32 I jba 0.5 E200.7 08/18111 15:23 I cp 0.05 A4500-NH3 G 08/15/11 12:49 I dc 0.1 E353.2 08/16/11 14:31 I dc 0.5 E200.7 08/18/11 15:23 I cp 0.9 E200.7 08/18/11 15:23 I cp 50 A4500-S04 E 08/22111 17:06 I Ijl 0.01 A4500-H B 08/12111 15:21 I wc 11 A2540 C 08/12111 16:34 I wc 5.0 E200.8 08/17/1101 :13/sml 0.50 E200.8 08/18/11 22:24 I sml 0.50 E200.8 08/17/1101 :13/sml 25 E200.8 08/17/11 01 :13 I sml 10 E200.8 08/17/1118:461 sml 10 E200.8 08/17/11 01 :13 I sml 30 E200.7 08/18/11 15:23 I cp 1.0 E200.8 08/18/11 22:24 I sml 10 E200.8 08/17/11 01 :13 I sml 0.50 E200.8 08/18/11 22:24 I sml 10 E200.8 08/17/1101 :13/sml 20 E200.8 08/17/11 01 :13 I sml 5.0 E200.8 08/17/1101 :13/sml 10 E200.8 08/17/11 01 :13 I sml 0.50 E200.8 08/18/11 22:24 I sml 100 E200.8 08/17/11 01 :13 I sml 0.30 E200.8 08/18/11 22 :241 sml 15 E200.8 08/17/11 01 :13 I sml 10 E200.8 08/17/1101 :131 sml E900.1 09/01 /11 19:00 I ep E900.1 09/01/11 19:00 I ep E900.1 09/01/11 19:00 I ep MCL -Maximum contaminant level. ND -Not detected at the reporting limit. D -RL increased due to sample matrix. Page 15 of 38 EN:RGY ;,\:-::.u,,",,/\I : .. JHI '. www.energylab.com ~ExWIMt:s "'lSI Helena, MT 811-472-0111 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515 Gillette, WY 816-181-1175 • Rapid City, so 888-672-1 m • College Station, 1X 888-690-2218 LABORATORY ANAL YTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Lab 10: C11080529-011 Client Sample 10: MW-37 Analyses DATA QUALITY AlC Balance (± 5) Anions Cations Solids, Total Dissolved Calculated TDS Balance (0.80 -1.20) VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes, Total Surr: 1.2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result 0.562 57.3 58.0 3820 1.00 ND ND ND ND ND ND ND ND ND ND 114 128 129 94.0 Units % meq/L meq/L mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L %REC %REC %REC %REC S -Spike recovery outside of advisory limits. Report Date: 09/14/11 Collection Date: 08/11/1108:15 DateReceived: 08/12/11 Matrix: Aqueous MCll Qualifier Rl QCl Method Analysis Date 1 By Calculation 09/13/11 13:21 1 sdw Calculation 09/13/11 13:21 1 sdw Calculation 09113/11 13:21 1 sdw Calculation 09/13/11 13:21 1 sdw Calculation 09/13/11 13:21 1 sdw 20 SW8260B 08/18/11 17:23 1 jlr 1.0 SW8260B 08/18/11 17:23 1 jlr 1.0 SW8260B 08/18/11 17:231 jlr 1.0 SW8260B 08/18/11 17:231 jlr 1.0 SW8260B 08/18/11 17:231 jlr 20 SW8260B 08/18/11 17:23 1 jlr 1.0 SW8260B 08/18/11 17:231 jlr 1.0 SW8260B 08/18/11 17:231 jlr 1.0 SW8260B 08/18/11 17:231 jlr 1.0 SW8260B 08/18/11 17:23 1 jlr 80-120 SW8260B 08/18/11 17:231 jlr 70-130 SW8260B 08/18/11 17:23 1 jlr S 80-120 SW8260B 08/18/11 17:23 1 jlr 80-120 SW8260B 08/18/11 17:23 1 jlr MCL -Maximum contaminant level. NO -Not detected at the reporting limit. Page 16 of 38 American West AU AI '(TICI.l I A IiORATORlfS 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-labs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer ORGANIC ANALYTICAL REPORT Client: Denison Mines Project: Lab Sample ID: 3rd Quarter Ground Water 2011 1l08108-008A Client Sample ID: MW-65 Collection Date: 8/3/2011 Received Date: 8/5/2011 Analytical Results Analyzed: 8/5/2011 1605h Units: )lg/L Dilution Factor: 1 Compound Tetrahydrofuran Surr: 1,2-Dichloroethane-d4 Surr: 4-Bromofluorobenzene Surr: Dibromofluoromethane Surr: Toluene-d8 0835h 0945h Contact: Jo Ann Tischler Method: SW8260C VOAs by GC/MS Method 8260C/S030C CAS Reporting Analytical Number Limit Result Qual 109-99-9 1.00 < 1.00 17060-07-0 77-144 106 460-00-4 80-123 109 1868-53-7 80-124 105 2037-26-5 80-125 98.8 Report Date: 8112/2011 Page 11 of29 All analySt!s applicable to the CWA. SDWA, and RCRA arc pcrrom1(~d in accordance to NELAC protocols. Pertinent sampling intonnalion is located on the attached C.OC This report is provided for thl! c)(clusivc us!.: ofthc addressee Privileges of :;ubs,,"qucnl use of the name oflhis company or any member ofil .. staff. or reproduction offhis report in connection with Ihe advertisement. promotion or sale o(·nny producl or process, or iu connection with the fe-publication oflhis report for any purpose olher than for the addressee will be granted only on contact-This company tlc(;cpls no responsibility except for the duc perfonnance of inspection andlor 3n:llysis in good faith and according to thc ruk-s oftht: trade and of science. EN:RGY L , l~ _)~~J~ I " Il:._ www.energylab.com ~/~SInu 11152 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 8&&-&8&-7175 • Rapid City, SO 888-&72-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10/06/11 Client: Denison Mines USA Corp Report Date: 09/01/11 Project: 3rd Quarter Groundwater 2011 Collection Date: 08/03/11 08:35 Lab 10: C11 080269-01 0 DateReceived: 08/05/11 Client Sample 10: MW-65 Matrix: Aqueous MCL! Analyses Result Units Qualifier RL QCL Method Analysis Date I By MAJOR IONS Carbonate as C03 ND mg/L A2320 B 08/05/11 20: 13 I jba Bicarbonate as HC03 389 mg/L A2320 B 08/05/11 20: 13 I jba Chloride 57 mg/L A4500-CI B 08/2211111:18/wc Fluoride 0.26 mg/L 0.10 A4500-F C 08/08/11 12:56 I jba Nitrogen, Ammonia as N 0.27 mg/L 0.05 A4500-NH3 G 08/11/11 14:491 dc Nitrogen, Nitrate+Nitrite as N 0.6 mg/L 0.1 E353.2 08/08/11 13 :22 I dc Sulfate 1950 mglL D 50' A4500-S04 E 08/22111 16:17/1jl PHYSICAL PROPERTIES pH 7.74 S.u. 0.01 A4500-H B 08/05/11 16:541 wc Solids, Total Dissolved TDS @ 180 C 3180 mg/L 10 A2540 C 08/05/11 17:25 Ilmc DATA QUALITY NC Balance (± 5) -1.32 % Calculation 10106/11 16:061 sdw Anions 48.5 meq/L Calculation 1 0/06111 16 :06 I sdw Cations 47.3 meq/L Calculation 1 0/06/11 16 :06 I sdw Solids, Total Dissolved Calculated 3090 mg/L Calculation 1 0106/11 16 :06 I sdw TDS Balance (0.80 -1.20) 1.03 Calculation 10/06/11 16:061 sdw -The Anion I Cation balance was calculated using the cation resu~s from workorder C11090045. VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes, Total Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. ND ND ND 1100 ND ND 12 ND ND ND 97.0 109 86.0 86.0 D -RL increased due to sample matrix. ug/L 20 SW8260B 08/09/11 00:421 jlr ug/L 1.0 SW8260B 08/09/11 00:42 I jlr ug/L 1.0 SW8260B 06/09/11 00:42/ jlr ug/L D 50 SW8260B 08/10/11 15:07/ jlr ug/L 1.0 SW8260B 08/09/11 00:42/ jlr ug/L 20 SW8260B 08/09/11 00:42 / jlr ug/L 1.0 SW8260B 08/09/11 00:42/ jlr ug/L 1.0 SW8260B 08/09/11 00 :42 / jll ug/L 1.0 SW6260B 06/09/11 00 :42 1 jlr ug/L 1.0 SW6260B 08/09/11 00:42 1 jll %REC 80-120 SW8260B 08/09/11 00 :421 jlr %REC 70-130 SW8260B 06/09/11 00:42/ jlr %REC 60-120 SW8260B 08/09/11 00 :421 jlr %REC 80-120 SW8260B 08/09/11 00 :421 jlr MCL -Maximum contaminant level. ND -Not detected at the reporting limit. Page 15 of 35 EN:RGY • ./. I " ' • www.energylab.com ~~ShlU'm Helena, MT 817-472-0711 • Billings, MT 800-735-44" • Casper, WV 888-235-0515 Gillette, WV 888-886-7175 • Rapid City, SD 888-&12-1225 • eollegeSlation, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10107/11 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater Resample 2011 Lab 10: C11090045-003 Client Sample 10: MW-65 Analyses MAJOR IONS Calcium Magnesium Potassium Sodium METALS -DISSOLVED Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc RADIONUCLIDES -DISSOLVED Gross Alpha minus Rn & U Gross Alpha minus Rn & U Precision (±l Gross Alpha minus Rn & U MOC Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result Units 493 mg/L 159 mg/L 10.6 mg/L 214 mg/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L 10 ug/L 1210 ug/L NO ug/L 971 ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L 2S.2 ug/L NO ug/L 11 ug/L 2.5 pCi/L 0.4 pCilL 0.2 pCilL MOC -Minimum detectable concentration Report Date: 10104/11 Collection Date: 08/30/11 11:10 DateReceived: 09/01/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date 1 By 0.5 E200.7 09/14/11 15:091 cp 0.5 E200.7 09/14/11 15 :09 1 cp 0.5 E200.7 09/14/11 15 :091 cp 0.5 E200.7 09/14/11 15:091 cp 5.0 E200.8 09/02/11 16:061 sml 0.50 E200.8 09/07/11 21 :OS 1 sml 0.50 E200.S 09/02/11 16:061 sml 25 E200.S 09/02/11 16:061 sml 10 E200.8 09/02/11 16:061 sml 10 E200.S 09/02/11 16:061 sml 30 E200.7 09/14/11 15:091 cp 1.0 E200.S 09/02/11 16:061 sml 10 E200.S 09/02/11 16:061 sml 0.50 E200.S 09/02/11 16:061 sml 10 E200.S 09/02/11 16 :06 1 sm I 20 E200.S 09/06/11 13:27 1 sml 5.0 E200.S 09/02111 16:06 1 sml 10 E200.S 09/02/11 16:061 sml 0.50 E200.S 09/02/11 16:061 sml 100 E200.S 09/02/11 16:061 sml 0.30 E200.S 09/02/11 16:06 1 sml 15 E200.S 09/02/11 16:061 sml 10 E200.S 09/02/11 16:061 sml E900.1 09/15/11 15:471 ep E900.1 09/15/11 15:471 ep E900.1 09/15/11 15:471 ep MCL -Maximum contaminant level. NO -Not detected at the reporting limit. Page 5 of 20 EN:RGY 1\,-tOt li\('.:JI /I' "_, www.energylab.com A/IIIfIIaI ExrMIwIu .. IIIfZ Helena, 1M 811-472-0711 • Billings, MY 800·735·4489 • Casper, WY 886-235-0515 Gillette, WY 888-186-7175 • Rapid City, SD 888-672-1225 • College Station, 1X 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab ID: Denison Mines USA Corp 3rd Quarter Groundwater 2011 C11090914-002 Client Sample ID: MW-70 Analyses METALS -DISSOLVED Thaiiium Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 3.47 ug/l Qualifier Rl 0.50 Report Date: 10/04/11 Collection Date: 09/21/11 15:00 DateReceived: 09/23/11 Matrix: Aqueous MCll QCl Method Analysis Date 1 By E200.8 09/27/11 07:471 sml Mel -Maximum contaminant level. NO -Not detected at the reporting limit. Page 4 of 8 EI\ERGY 1\ 7\{.Hu\1 ,-' 11 '~ www.energylab.com AM/fIIaI ~ SIIJu 1112 Helena, MT 871-412-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-1515 Gillette, WY 81B-IBI-7175 • Rapid City, so 888-612-1225 • College Station, 1X 888-6S0-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp 3rd Quarter Groundwater 2011 C11080529-012 Client Sample 10: MW-70 Analyses MAJOR IONS Sulfate PHYSICAL PROPERTIES Solids, Total Dissolved TDS @ 180 C Report Definitions: Rl -Analyte reporting limit. QCL -Quality control limit. Result 1910 3220 D -Rl increased due to sample matrix. Units mg/L mg/l Report Date: 09/14/11 Collection Date: 08/10/11 14:20 DateRecelved: 08/12111 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date / By D 50 A4500-S04 E 08/22111 17:13 I ljl 10 A2540 C 08/12/11 16:34/ wc MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 17 of 38 Arneric.an West AUAl 'i TlC/d I AnOI=fATORlfS 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801)263-8687 e-mail: awal@awal-labs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer ORGANIC ANALYTICAL REPORT Client: Denison Mines Project: Lab Sample ID: 3rd Quarter Ground Water 2011 1108108-009A Client Sample ill: Trip Blank Collection Date: 8/2/2011 Received Date: 8/512011 Analytical Results Analyzed: 8/5/2011 1624h Units: fJ.g/L Dilution Factor: 1 Compound Tetrahydrofuran Surr: 1,2-Dichloroethane-d4 Surr: 4-Bromofluorobenzene Surr: Dibromofluoromethane Surr: Toluene-d8 0945h Contact: Jo Ann Tischler Method: SW8260C VOAs by GC/MS Method 8260CIS030C CAS Reporting Analytical Number Limit Result Qual 109-99-9 1.00 < 1.00 17060-07-0 77-144 107 460-00-4 80-123 111 1868-53-7 80-124 103 2037-26-5 80-125 101 Report Date: 8112/2011 Page 12 of29 All analyses applicable to the CWA. SOWA. find RCRA ore performed in accordam.:e fo NELAC protocols, Pt!rtincnl sampling infonnalion i;> located on the attached CDC This report is provided for the exclusive usc of the addressee Privileges of subsl!qucnt usc ofthc name of this company or any member of ils staff, or reproduction of this Teport in connection with the advertisement. promotion or sate of any product or process, or in-connection wilh Ihe rc-publicalion of this report for any purpose other than for the addressee will b\! granted only on contact. This company accepts no responsibility except for thl.: due performance of inspection and/ur analysis in good failh and according to the rules of the trade and of science 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-labs.com web: www.awal-Iabs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer ORGANIC ANALYTICAL REPORT Client: Project: Lab Sample ID: Denison Mines 3rd Quarter Ground Water 2011 1108246-004A Client Sample ID: Trip Blank Collection Date: 8/9/2011 Received Date: 8112/2011 0935h Analytical Results Analyzed: 8/1212011 1404h Units: Ilg/L Dilution Factor: 1 Compound Tetrahydrofuran Surr: 1,2-Dichloroethane-d4 Surr: 4-Bromofluorobenzene Surr: Dibromofluoromethane SUIT: Toluene-d8 Contact: Jo Ann Tischler Method: SW8260C VOAs by GC/MS Method 8260CI5030C CAS Reporting Analytical Number Limit Result Qual 109-99-9 1.00 < 1.00 17060-07-0 77-144 113 460-00-4 80-123 110 1868-53-7 80-124 108 2037-26-5 80-125 99.1 Report Date: 8/15/2011 Page 6 of 17 All analyses applicable to the: CWA, SOW A, and RCRA are pcrfomlcd in accordance to NELAC protocols Pertinent sampling infom13tion is located on the attached cae This report is provided for the exclusive usc arthc addressee. Privileges of subsequent use orltic name of this company or any member ofils sLaff, or reproduction of this report in connection with th\! l1dvertlscmcnl. promotion or sale of any product or process, or in conneclion with the re-publication of this report for'any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility except for thl! due pcrfomlancc of inspection and/or analysis in good faith and according to the rules of the trade and of science. EN:RGY ,_ ,\t-' }:./'I I ): :tr..~. www.energylab.com Aulfllt:.I~ShIu 1m Helena, MT 877-412-0711 • Billings, MT 800-135-4489 • Gaspar, WY 888-235-0515 Gillette, WY 8&6-186-7115 • Rapid City, SD 888-&12-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10106/11 Client: Denison Mines USA Corp Project: Lab ID: 3rd Quarter Groundwater 2011 C11080269-011 Client Sample ID: Trip Blank 6092 Analyses VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes, Total Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result NO NO NO NO NO NO NO NO NO NO 102 105 90.0 86.0 Report Date: 09/01/11 Collection Date: 08/03/11 DateRecelved: 08/05/11 Matrix: Aqueous MCL! Units Qualifier Rl QCl Method Analysis Date 1 By uglL 20 SW8260B 08/09111 01 :18 1 ilr uglL 1.0 SW8260B 08/09/11 01 :18 1 ilr uglL 1.0 SW8260B 08/09/11 01 :181 ilr uglL 1.0 SW8260B 08/09/11 01 :18 / ilr ug/L 1.0 SW8260B 08/09111 01 :18 1 ilr ug/L 20 SW8260B 08/09/11 01 :18 / ilr uglL 1.0 SW8260B 08/09/11 01: 18 / ilr uglL 1.0 SW8260B 08109111 01 :18 / ilr uglL 1.0 SW8260B 08109/11 01 :18 1 ilr ug/L 1.0 SW8260B 08/09/11 01 :18 / ilr %REC 80-120 SW8260B 08/09/11 01 :18 / ilr %REC 70-130 SW8260B 08/09/11 01 :18 1 ilr %REC 80-120 SW8260B 08/09/11 01 :18 1 ilr %REC 80-120 SW8260B 08/09/11 01 :18 / ilr MCL -Maximum contaminant level. NO -Not detected at the reporting limit. Page 16 of 35 EN:RGY :···\OI:(/\'?lHII,--) www.energylab.com AM/fIkII~SInu 11M Helena, MY 871-472-0711 • Billings, MY 800-735-4489 . Casper, WY 881-235-0515 Gillette, WY 888-&8&-7175 • Rapid City, so 88B-&72-1225 • College Station, 1X 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab ID: 3rd Quarter Groundwater 2011 Cll080529-013 Client Sample ID: Trip Blank (6092) Analyses VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes, Total Surr: l,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result ND ND ND ND ND ND ND ND ND ND 109 101 122 94.0 Units ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L %REC %REC %REC %REC S -Spike recovery outside of advisory limits. Report Date: 09/14/11 Collection Date: 08/09/11 DateReceived: 08/12/11 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date I By 20 SW8260B 08/18/11 17:581 jlr 1.0 SW8260B 08/18/11 17 :58 I jlr 1.0 SW8260B 08/18/11 17:58 I jlr 1.0 SW8260B 08/18/11 17:58 I jlr 1.0 SW8260B 08/18/11 17:581 jlr 20 SW8260B 08/18/11 17:58 I jlr 1.0 SW8260B 08/18/11 17:58 I jlr 1.0 SW8260B 08/18/11 17:581 jlr 1.0 SW8260B 08/18/11 17:581 jlr 1.0 SW8260B 08/18/11 17:58 / jlr 80-120 SW8260B 08/18/11 17:58 I jlr 70-130 SW8260B 08/18/11 17:58 I jlr S 80-120 SW8260B 08/18/11 17:58 / jlr 80-120 SW8260B 08/18/11 17:58 / jlr MCL - Maximum contaminant level. ND -Not detected at the reporting limit. Page 18 of 38 EI'J:RGY J'. nHl\/CI .... ' " Client: Project: Lab 10: www.energylab.com AIIIIytftM £zuIIIM:iI SIIru 1152 Helena, MT 877-472-0711 • Bllllnp. MJ HI·J31-44" • Casper, WY .11·235·0515 Gillette, W'f 866·688·7115 • Rapid City, sp ••• ·112-1228 • College Station, TX .8.·810-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Denison Mines USA Corp 3rd Quarter Groundwater Resample 2011 Cll090045-007 Client Sample 10: Temp Blank Revised Date: 10/07/11 Report Date: 10104/11 Collection Date: 08/30/11 DateReceived: 09/01/11 Matrix: Aqueous Analyses PHYSICAL PROPERTIES Temperature Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 2.3 MCU Qualifier RL QCl Method Analysis Date I By E170.1 09/01/11 09:10 I kbh MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 9 of 20 EN:RGY :\-UI-(/\I ': J..tE ~ www.energylab.com bIJy/kIJ &uIIMu stllU list Heiena, MT 871-472-0711 • BIllings, MT 800-735-4489 • Casper, WY 888-235-1515 Gillatte, WY 11&-&86-7175 • Rapid City, SD 118-872-1225 • CGllege station, TX 888-610-2211 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab ID: Denison Mines USA Corp 3rd Quarter Groundwater 2011 C11090914-003 Client Sample ID: Temp Blank Analyses PHYSICAL PROPERTIES Temperature Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 2.4 Qualifier RL Report Date: 10104/11 Collection Date: 09/21/11 DateReceived: 09/23/11 Matrix: Aqueous MCL! QCl Method Analysis Date 1 By E170.1 09/23/11 09:20 1 kbh MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 5 of 8 EI\ERGY L' 8,)1.( I J"tL ' www.energylab.com ~/m.n.nuS/nu 'flU Helena, MT 877-472-0711 • Billings, MT 800-735-4489 . Casper, WY 888-235-0515 Gillette, WV 8&&-&86-7175 · Rapid City, SD 888-672-1225 . College Station, TX 888-&90-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Revised Date: 10/06/11 Report Date: 09/01/11 Collection Date: Not Provided DateReceived: 08/05/11 Matrix: Aqueous Client: Project: Lab 10: Denison Mines USA Corp 3rd Quarter Groundwater 2011 C11080269-012 Client Sample 10: Temp Blank Analyses PHYSICAL PROPERTIES Temperature Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 4.2 MCL! Qualifier RL QCL Method Analysis Date I By E170.1 08/05/11 09:10/ kbh MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 17 of 35 EN:RGY i'\'~.OI~'\I:..~fJI 'J WWN.energylab.com ~~stna'§1 Helena, MT 871-472-0711 • BIllings, MT 800-135-44811 • Casper, WY 888-235-8515 Gillette, WY 8BB·686· 7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp 3rd Quarter Groundwater 2011 C11080529-014 Client Sample 10: Temp Blank Analyses PHYSICAL PROPERTIES Temperature Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 2.9 Qualifier Rl Report Date: 09/14/11 Collection Date: Not Provided DateReceived: 08/12111 Matrix: Aqueous MCL! QCl Method Analysis Date I By E170.1 08/12/11 09:05 1 kbh MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 19 of 38 AUhl "TICAl I AI',O nAT0ntr s 463 West 3600 South Salt Lake City, UT 84115 Phone: (801)263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com web: www.awal-Iabs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer Jo Ann Tischler Denison Mines 1050 17th Street, # 950 Denver, CO 80265 TEL: (303) 389-4132 RE: 3rd Quarter Ground Water 2011 Dear Jo Ann Tischler: Lab Set ID: 1108108 American West Analytical Laboratories received 9 sample(s) on 8/5/2011 for the analyses presented in the following report. All analyses were performed in accordance to The NELAC Institute protocols unless noted otherwise. American West Analytical Laboratories is certified by The NELAC Institute in Utah and Texas; and is state certified in Colorado, Idaho, and Missouri. Certification document is available upon request. If you have any questions or concerns regarding this report please feel free to call. The abbreviation "Surr" found in organic reports indicates a surrogate compound that is intentionally added by the laboratory to determine sample injection, extraction, andlor purging efficiency. The "Reporting Limit" found on the report is equivalent to the practical quantitation limit (PQL). This is the minimum concentration that can be reported by the method referenced and the sample matrix. The reporting limit must not be confused with any regulatory limit. Analytical results are reported to three significant figures for quality control and calculation purposes. Thank You, Approved by: Digitally signed by Jose G. J 0 S e G ~~~~~=Jose G. Rocha. • o=American West Analytical Laboralories, ou=Qualily Assurance Officer, Roc h a ~:;'~~=joSe@awal.labs.com. Date: 2011.08.1216:44:29 -06'00' Laboratory Director or designee Report Date: 8/12/2011 Page 1 of29 All analyses applicable 10 the CWA. SDWA, and RCRA arc pcrfonncd in accordance to NELAC protocols Pertinent sampling infonnRlion is located on Ihe attached cac. This report is provided for the exclusive us~ of the addressee.. Privilegl.!s of subsequent use of the name of thiS company or any member of Its staff, or rCI)rodUl.:lion orthi~ report In conneclion with the adverlisemcnt, promotion or sale of any product or plllCCSS, or in connection with the re-publication of.his report for any pUlpOSC olher than for the addressee will be granted only on contact. This cUJUpany accepts 110 responsibility I.:xccpl for the dUl: pt!rfonnancc ofinspeclmn and/or analysis in good faith and according 10 the ruh.:s of file lrade and of science SAMPLE SUMMARY American West Client: Denison Mines Contact: 10 Ann Tischler ANAl .... TICAl I AflOAATORlfS Project: 3rd Quarter Ground Water 2011 Lab Set ID: 1108108 Date Received: 8/S/2011 094Sh Lab Sample ID Client Sample ID Date Collected Matrix Analysis 463 West 3600 South 1108108-00lA MW-ll 8/3/2011 102Sh Aqueous VOA by GC/MS Method Salt Lake City, UT 84l1S 8260C/S030C 1108108-002A MW-14 8/3/2011 133Sh Aqueous VOA by GC/MS Method 8260C/S030C 1108108-003A MW-25 8/3/2011 104Sh Aqueous VOA by GCIMS Method Phone: (80 l) 263-8686 8260C/S030C Toll Free: (888) 263-8686 1l08108-004A MW-26 8/3/2011 0835h Aqueous VOA by GCIMS Method Fax: (80 l) 263-8687 1108108-00SA MW-30 8/3/2011 8260C/S030C 144Sh Aqueous VOA by GC/MS Method e-mail: awal@awal-Iabs.com 8260C/5030C 1l08108-006A MW-31 8/2/2011 1400h Aqueous VOA by GC/MS Method web: www.awal-Iabs.com 8260C/S030C 1108108-007 A MW-35 8/2/2011 1430h Aqueous VOA by GC/MS Method 8260C/5030C 1108108-008A MW-65 8/3/2011 0835h Aqueous VOA by GCIMS Method Kyle F. Gross 8260C/S030C Laboratory Director 1108108-009A Trip Blank 8/2/2011 Aqueous VOA by GC/MS Method 8260C/S030C Jose Rocha QA Officer Report Date: 8/1212011 Page 2 of29 All analyses applic~ble La the CWA, SDWA. and ReRA arc pcrfonncd in accordance 10 NELAC protocols. Pertinent sampling infomlBlion is locat~d on the attached COc. This report is; provided for the exclusive usu of the addressee. Privileges of subsequent use of the name oflhis company or any membc:r of its srntT. or reproduction aflhis report in conneclion with the advertisement promotion or sale araoy product or process, OT in connection with the fe-publication or this report ror any purpose other than for the addressee will be granted only on contact. Tllis company accepts no responsibility excepl for the due perfonnance of inspection and/or analysis in good faith and according to the rules of lhe trade and of science t'.Hl!~ri['i'\! IN',,:::-,\.. IINhlVTICAI I AflOn6.TORII £; 463 West 3600 South Salt Lake City, VT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801)263-8687 e-mail: awal@awal-labs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer Volatile Case Narrative Client: Contact: Denison Mines Jo Ann Tischler Project: Lab Set ID: Sample Receipt Information: Date of Receipt: Date(s) of Collection: Sample Condition: C-O-C Discrepancies: Method: Analysis: 3rd Quarter Ground Water 2011 1108108 8/5/2011 8/2 & 8/3/2011 Intact None SW-8468260C/5030C Tetrahydrofuran General Set Comments: Tetrahydrofuran was not observed above reporting limits. Holding Time and Preservation Requirements: All samples were received in appropriate containers and properly preserved. The analysis and preparation of all samples were performed within the method holding times following the methods stated on the analytical reports. Analytical QC Requirements: All instrument calibration and calibration check requirements were met. All internal standard recoveries met method criterion. Batch QC Requirements: MB, LCS, MS, MSD, RPD, and Surrogates: Method Blanks (MBs): No target analytes were detected above reporting limits, indicating that the procedure was free from contamination. Laboratory Control Sample (LCSs): All LCS recoveries were within control limits, indicating that the preparation and analysis were in control. Matrix Spike 1 Matrix Spike Duplicate (MS/MSD): All percent recoveries and RPDs (Relative Percent Differences) were inside established limits, indicating no apparent matrix interferences. Surrogates: All surrogate recoveries were within established limits. Corrective Action: None required. Report Date: 8/12/2011 Page 3 of 29 All analyses applicable 10 Ihe CWA. SDWA. and RCRA arc perfOmh!d in accordance to NELAC protocols Pertinent sampling infomlalion is located on the attaclh:d COc. This report is provideu for tht! exclusive usc ufthc addressee Privilcgc.:s of subsequent usc oflhc name oflhis company or any mcmb~r ofils stafT. or reproduction oflhis report in conneclion with the advertisen1l!nt. promotion or sale or any product or process, or in connection with the re-publication oFthis report tor noy purpo);c othcr than for the addressee will be granted only on contact, n.is compauy accepts no r~sponsibilily except for the due pcrfonllancc of inspection and/or analysis in good failh and accllrding to the rules of the trade and of scicnce American West ANALYTICAL LABORATORIES Client: Denison Mines Lab Set ID: 1108108 Project: 3rd Quarter Ground Water 2011 Sample ID Analyte LCS VOC OS0511A Tetrahydrofuran LCS VOC OS0511A Surr: 1,2-Dichloroethane-d4 LCS VOC OS0511A Surr: 4-Bromofluorobenzene LCS VOC OS0511A Surr: Dibromofluoromethane LCS VOC OS0511A Surr: To1uene-dS 463 West 3600 South Salt Lake City, UT 84115 Phone: (SOl) 263-8686, ToIl Free: (SS8) 263-86S6, Fax: (801) 263-S687 Units ~g/L %REC %REC %REC %REC e-mail: awal@awal-labs.com, web: www.awal-labs.com OC SUMMABXJU~PORJ Amount Method Result Spiked SW8260C 15.2 20.00 SW8260C 44.7 50.00 SW8260C 51.4 50.00 SW8260C 47.6 50.00 SW8260C 50.0 50.00 Contact: Dept: Jo Ann Tischler MSVOA QC Type: LCS Original Amount %REC Limits 0 75.8 43-146 89.5 69-132 103 85-118 95.1 SO-120 100 Sl-120 %RPD RPD Limit Kyle F. Gross Laboratory Director Jose Rocha QA Officer Qual Date Analyzed S/5/2011 121Sh S/5/2011 121Sh 8/5/2011 1218h S/5/2011 121Sh S/5/2011 121Sh Report Date: 8/12/2011 Page 13 of29 All analyses applicable to the CWA~ SDWA. and ReRA are perfonned in accordance to NELAC protocols. Pertinent sampling information is located on the attached COCo This report is provided for the exclusive use of the addressee. Privileges of subsequent use afthe name of this company or any member of its staft~ or reproduction of this report in connection with the advertisement, promotion or sale of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility except for the due performance of inspection and/or analysis in good faith and according to the rules of the trade and of science. American West ANALVTICAL LABORATORIES Client: Denison Mines Lab Set ID: 1108108 Project: 3rd Quarter Ground Water 2011 Sample ID Analyte MB VOC 0805l1A Tetrahydrofuran MB VOC 080511A Surr: 1,2-Dichloroethane-d4 MB VOC 080511A Surr: 4-Bromofluorobenzene MB VOC 080511A Surr: Dibromofluoromethane MB VOC 080511A Surr: Toluene-d8 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686, Toll Free: (888) 263-8686, Fax: (801) 263-8687 e-mail: awal@awal-labs.com, web: www.awal-Iabs.com Units ILgiL %REC %REC %REC %REC ~c SUMMAR'Y_REPOR'L Amount Method Result Spiked SW8260C < 1.00 SW8260C 46.1 50.00 SW8260C 54.3 50.00 SW8260C 47.1 50.00 SW8260C 51.2 50.00 Contact: Dept: QC Type: Jo Ann Tischler MSVOA MBLK Original Amount %REC Limits 92.2 69-132 109 85-118 94.2 80-120 102 81-120 %RPD RPD Limit Kyle F. Gross Laboratory Director Jose Rocha QA Officer Qual Date Analyzed 8/5/2011 l256h 8/5/2011 1256h 8/5/2011 l256h 8/512011 1256h 8/5/2011 1256h Report Date: 8112/2011 Page 14 of29 All i\nalyses applicable to the CWA. SDWA, and ReRA are perfonned in accordance to NELAC protocols Pertinent sampl1ng information is located on the attached COCo This report is provided for the exclusive use ofrhe addressee. Privileges of subsequent use of the name of this company OT any member of its staff, or reproduction of this report in connection with the advertisement, promotion aT sale of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility except for the due performance of inspection andlor analysis in good faith and according to the rules of the trade and of science. American West ANAlVT!CAl LABORATORIES Client: Denison Mines . Lab Set ID: 1108108 Project: 3rd Quarter Ground Water 2011 Sample ID Analyte 1108108-001AMS Tetrahydrofuran 1108108-001 AM S SUIT: 1,2-Dichloroethane-d4 1108108-001AMS SUIT: 4-Bromofluorobenzene 1108108-001AMS SUIT: Dibromofluoromethane , 1l08108-001AMS SUIT: Toluene-d8 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686, Toll Free: (888) 263-8686, Fax: (801) 263-8687 e-mail: awal@awal-labs.com, web: www.awal-labs.com _2-C.SUMMAAY REPO~J'_ Contact: Dept: 10 Ann Tischler MSVOA QC Type: MS Amount Original Units Method Result Spiked Amount %REC Limits ~glL SW8260C 19.6 20.00 0 98.0 43-146 %REC SW8260C 51.4 50.00 103 77-144 %REC SW8260C 51.0 50.00 102 80-123 %REC SW8260C 50.9 50.00 102 80-124 %REC SW8260C 49.6 50.00 99.3 80-125 %RPD RPD Limit Kyle F. Gross Laboratory Director loseRocha QAOfficer Qual Date Analyzed 8/5/2011 1430h 8/5/2011 1430h 8/5/2011 1430h 8/5/2011 1430h 8/5/2011 1430h Report Date: 8/12/2011 Page 15 of29 All analyses applicable to the CWA. SDWA, and RCRA are performed in accordance to NELAe protocols. Pertinent sampling information is located on the attached COe. This report is provided for th~ exclusive use afthe addressee. Privileges of subsequent use of the name of this company or any member of its staff, or reproduction of this repon in connection with the advertisement, promotion or sale of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility except for the due perfonnance of inspection andlor analysis in good faith and according to the rules of the trade and of science. American West ANALYTICAL lA90~ATORIES Client: Denison Mines Lab Set ID: 1108108 Project: 3rd Quarter Ground Water 2011 Sample ID Analyte 1108108-001AMSD Tetrahydrofuran l108108-001AMSD SUIT: 1,2-Dichloroethane-d4 1108108-001AMSD SUIT: 4-Bromofluorobenzene 1108108-001AMSD SUIT: Dibromofluoromethane 1108108-001AMSD SUIT: Toluene-d8 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686, Toll Free: (888) 263-8686, Fax: (801) 263-8687 e-mail: awal@awal-labs.com, web: www.awal-Iabs.com QC. SUMM1\RXJffiPORT_ Contact: Dept: Jo Ann Tischler MSVOA QC Type: MSD Amount Original Units Method Result Spiked Amount %REC Limits flglL SW8260C 20.2 20.00 0 101 43-146 %REC SW8260C 51.1 50.00 102 77-144 %REC SW8260C 51.4 50.00 103 80-123 %REC SW8260C 50.8 50.00 102 80-124 %REC SW8260C 49.2 50.00 98.4 80-125 %RPD 3.02 RPD Limit 25 Kyle F. Gross Laboratory Director Jose Rocha QA Officer Qual Date Analyzed 8/5/2011 1449h 8/5/2011 1449h 8/5/2011 1449h 8/5/2011 1449h 8/5/2011 1449h Report Date; 8/12/2011 Page 16 of29 An analyses applicable to the CWA. SDWA, and RCRA are perfonned in accordance to NELAC protocols. Pertinent sampling infonnation is located on the attached COCo This report is provided for the exclusive use ofthe addressee. Privileges of subsequent use of the name of this company or any member of its staff, or reproduction of tbis report in connection with the advertisement, promotion or salt: of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. TIlls company accepts no responsibility except for the due performance of inspection and/or analysis in good faith and according to the rules of the trade and of science. Data E'ath Data File Aeq On Operator Sample Mise ALS Vial Quantitation Report C:\msdehem\1\DATA\AUG11-C\05AUG11A\ RS7LI081. D 5 Aug 2011 1 :14 pm 1108108-00IA SAMP 5 .0ML 10F3 6 Sample Multiplier: 1 Quant Time: Aug 05 13 :32:22 2011 Quant Method C:\MSDCHEM\1\METHODS\AFULLW_36 .M Quant Title VOA Calibration QLast Update Wed Jul 27 12 :13:03 2011 Response via Initial Calibration (QT Revie wed) Ab~Jndance 2100000 TIC: R57L 1 081.D\data.ms 2000000 1900000 f ., 1800000 1700000 1600000 I/) ~ ~ g ~ § .. .ll 1 I ~ !! 0 ~ ..;. ., ~ 0 ~ i E a> .il Jl Iii " '" 1500000' 1400000 I ~ 0 1300000 !ii 1200000 1100000 1000000 900000 800000 700000 600000 500000 400000 300000 200000 100000 Time·-> ~~ ~ Il 0~~2~.0~O~2-.W~~3~.~OO~3~.5~0--4~.0~0~4-.~50~~5~.b~0~5~.~'-·6n.bno,JJ~6.-~r--7~.0~0--7'.540~8r.bro~-a.'r50-'~9~.b~o~9~.~--rl-0.-00~1-0rl.5-0-1-1T.OrOr-ll-.5~0 AFULUL36 .M Fri Aug 05 13: 32 : 37 2011 R~port Date: 8/12ntlJ3lCJEp'llgcfl17 of29 Data Path Data File Acq On Operator Sample Mise ALS Vial Quantitation Report C:\msdchem\1\DATA\AUG11-C\OSAUGl1A\ R58LI082.D 5 Aug 2011 1 :33 pm 1108~08-002A SAMP 5.0ML 10F3 7 Sample Multiplier : 1 Quant Time : Aug 05 13 :48 :15 2011 Quant Method C:\MSDCHEM\1\METHODS\AFULLW_36 .M Quant Title VOA Calibration QLast Update Wed Jul 27 12 :13 :03 2011 Response via Initial Calibration (QT Reviewed) Abundance 2000000 TIC: R58L1082.0\dala.ms 1900000 ~ 1800000 1700000 1600000 ! "! ~ i g ~ C> ~ .. ~ $I 1 jj ~ 0 q .is ~ .SI g ..c ~ v e 1 m ; </) 1500000 "6 c: ~ 1400000 c: j "- 1300000 ~ 1200000 1100000 1000000 900000 800000 700000 600000 500000 400000 300000 200000 100000 j i 01~~~~1~~1~~~--~~~~~' J~~~~~~~ ____ ~I ~~~~~~'~~Tr---~~~~~~~--~- 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00,11.50 lime-> AFULLW_36 .M Fri Aug 05 13 :48:30 2011 Repon Date: 811 212ti'fli9€p'ogJlI 8 of29 Data Path Data File Aeq On Operator Sample Mise ALS Vial Quantitation Report C:\msdehem\1\DATA\AUGIl-C\05AUGlIA\ R59LI083 .D 5 Aug 201 1 1 :52 pm 1108108-003A SAMP 5.0ML 10F3 B Sample Multiplier: 1 Quant Time : Aug 05 14 :39 :53 2011 Quant Method C:\MSDCHEM\1\METHODS\AFULLW_36 .M Quant Titl e VOA Calibration QLast Update Wed Jul 27 12:13:03 2011 Response via Initial Calibration (QT Revi ewed) Abundance TIC: R5.9L1083.0\data.ms 2100000 2000000 ;jj -.;> .. "' ~ 1900000 .§ 1800000 1700000 1600000 g ... 0 1 ~ ~ c; ~ S c ,g ~ ~ 0 ~ -t ~ ~ e !{l '" 1500000 !5 (/) g 1400000 ! B 1300000 Ii: 0 ~ 1200000 1100000 1000000 900000 800000 700000 600MO 500000 400000 300000 200000 100000l 0~~~~~~~~~~~11--~~--~~h-~~~~~~~~~~--~~~~~-rr 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 71 0 8.00 8.50 910 9.50 10.00 10~50 1 1 ~00 11.50 Tlme-> AE'ULLW_36.M Fri Aug 05 14:41 :23 2011 Report Date: 8/1212ti'f319 Ej"6gtl19 of29 Data Path Data File Aeq On Operator Sample Mise ALS Vial Quantitati on Report C;\msdchem\1\DATA\AUGI1-C\05AUGIIA\ R60L1084 .D 5 Aug 2011 2;11 pm 1l08108-004A SAMP 5 .0ML 10F3 9 Sample Multiplier ; 1 Quant Time ; Aug 05 14 :40 :27 2011 Quant Method C:\MSDCHEM\l \METHODS\AFULLW_36 .M Quant Title VOA Calibration QLast Update Wed Jul 27 12 :13 :03 2011 Response via Initial Calibration (QT Revie~led) Abundance 1.4e+07J TIC: R60L 1 084.D\data.ms 1.35e+07 1.3e+07 1.258+07 1.2e+07 1.1 5e+07 1.1e+07 1.05e+07 9500000 9000000j 8500000 8000000 7500000 7000000 6500000 6000000 5500000 5000000 4500000 4000000 3500000 3000000 2500000 2000000 1500000, 1000000' ] ;; E e ~ , g '15 E 0 ~ :E u ~ 0 5 w ~ :6 til ~ ~ ~ '" "I ~ !8 ~ 2 ~I ~ .8 ! R ., j ~ .2 ~ c '" ... ~ u c ~ E ~ .g g e ~u: '" ~I'! 5 :li!!Z til C <'l ~ t: ~ f 50000:1~~ __ ~ITI~~"I~'~'~O!~'-~~-T~~~~r-~~~'-~n4~rM~_.,.tAJ'~O-TOrljnj~I~O~'~O1~'~ITj'l~on'-TI~jrl~' ~t~O~'~'I~" lime-> 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9,00 9.50 10,00 10,50 11.00 11 .50 AFULLW_36 .M Fri Aug 05 14 ;41 ;56 2011 Data Path Data File Aeq On Operator Sample Mise ALS Vial Quantitation Repo rt C:\msdchem\1\OATA\AUGll-C\05AUGlIA\ R63LI085 .D 5 Aug 2011 3:08 pm 1108108-005A SAMP 5 .0ML 10F3 12 Sample Mult iplier : 1 Quant Time : Aug 05 16 :30:55 2011 Quant Method C :\MSOCHEM\l\METHODS\AFULLW_36 .M Quant Title VOA Calibration QLast Update Wed Jul 27 12:13:03 2011 Response via Initial Calibration (QT Reviewed) TIC: RG3L lC85.D'daIarr.s 1800000 1700000 ~ 1600000 1500000 1400000 1300000 • j 1 ; j I I 1 i! , , • ~ I • 0 1200000 • 1100000 1000000 900000 800000 700000 aooooo 500000 400000 200000 100000 TIme-> O'~~~~~~~-.~~~~~~~~~~~~~-r--~~~r-~~r-~ 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50 AFULLW_36 .M Fri Aug 05 16 :32 :37 2011 Data Pa'th Data File Aeq On Operator Sample Mise AL S Vial Quant Time: Quant Meth0d Quant Title QLast Update Response via Abundance 1800000 1700000 1600000 1500000 1400000 1300000 1200000 1100000 1000000 900000 aooooo 700000 600000 500000 4000J 300000 200000 100000 Quantitation Repor C:\msdchem\1\DATA\AUG11-C\OSAUG11A\ R64LI086 .D 5 Aug 2011 3 :27 pm 1108108-006A SAMP 5 .0ML lOF3 13 Sample Multiplier : 1 Aug 05 16 :31 :16 2011 C:\MSDCREM\1\METHODS\AFULLW_36 .M VOA Calibration Wed Ju1 27 12 :13 :03 2011 Initial CaLibrati0n (QT Reviewed) TIC: R64L rOa6.D\data.ms ~ ~ j ~ /j i ~ I '" ~ <:> ~ "-~ :l! "0 ~ i E e t: .., Jl 1; '" ~ ~ ~ ~ u-§ UJ ~ I ~ a i E e , e .I! g li' "" ~ Q 0 '" .Q ~ <:> l 0-'=''''--·'' 'i i ' , " " , "., . j ., • I IA ) ,I • t , I ' , j , " j f I I I j " 'j I 'j ii' j" 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.0.0 8.50 9.00 9.50 10.00 10.50 11.00 11.50 Tlme-> Af'ULLW_36 .M Fri Aug 05 16 : 33 : 10 2011 Data Path Data File .Aeq On Operator Sample Mise ALS Vial Quantitation Report C:\msdehem\1\DATA\AUG11-C\05AOGl1A\ R65L1087 .D 5 Aug 2011 3 :46 pm l108l08-007A SAMP 5 .OML lOF3 14 Sample Multiplier: 1 Quant Time : Aug 05 16 :31 :35 2011 Quant Method C:\MSDCHEM\1\METHODS\AfULLW_36 .M Quant Title VOA Calibration QLast Update Wed Ju1 27 12 :13 :03 2011 Response via Initial Calibration (QT Reviel-led) Abundance TIC: R65L1087.D\data.ms 180.0000 1700.000 160.0.0.0.0. 1500000 -e 140.0.0.0.0 III e " '" I J 130.000.0 e ~ 1200000 ~ 1100.000. 10.0.0.0.0.0. 9000.00. 80.0.0.0.0. t '4 ~ 2: J!I a j I E e g i3 ~I ~ ,g 0 " 70.000.0. 60.0.000 50.0.0.0.0. " '" 40.0.00.0 I 30.0.0.0.0. 200.0.00. 10.0.0.0.0. A \A A I . I I I I I I ' I I 0. I Time-> 2.0.0. 2.50. 3.0.0 3.50 4.0.0. 4.50. 5.0.0. 5.50 6.0.0. 6.50. 7.0.0 7.50 8.0.0 8.50. 9.0.0 9.50 10.,0.0. 10..50 11.00 11.50. AFULLW_36 .M Fri Aug 05 16 :33 :43 2011 Data Path Data File Aeq On Operator Sample Mise ALS Vial Quantitati on Report C :\msdehem\1\DATA\AUG1l-C\05AOGllA\ R66L1088 .D 5 Aug 2011 4 :05 pm 1108108-008A SAMP 5 .0ML 10P3 15 Sample Multiplier : 1 Quant Time : Aug 05 16 :32 :05 2011 Quant Method C :\MSDCAEM\1\METHODS\APULLW_36 .M Quant Title VOA Cali.bration QLast Update Wed Jul 27 12 :13 :03 2011 Response via Initial Calibration (Qr Reviewed) Abundance TIC: R66l1 088.D\data.ms 1.35e+07 1.3e+07 1.25e+07 1.2e+07 1.15e+07 1.05e+07 1e+07 9500000 9000000 8500000 8000000 7500000 7000000 6500000 6000000 5500000 5000000 4500000 4000000 is UJ f 8 g '" "l " J ~ ~ ~ "l i g ~ ~ ~ !!: ~ .§ "let ~ .W <.I ~ o· E !~ ~ ~ ~ .I. E 11 ~~ UJ ~ ~ 5 j~ U) 0 E 3500000 3000000 2500000 2000000 1500000 E 0 -.g ~ 0 ~ ~ " fJ) UJ I 1000000 500000 O!"--'-T"T"'~"--T"T"!"TT"'-"::\-""""T"T..,.,..,..........,....,..,J..,\'\l-r,-r4...-4-r-r--o--r~,.J,L,-.-~..,.4 ........ ....,...fL-,---r~'-'" -., , • I' I' I I " I ' , , , I " 'I ' 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11 .00 11.50 llme-> 2.00 2.50 3.00 3.50 4.00 AFULLW_36 .M Fri Aug 05 16 :34 :17 2011 Report Date: 8112I2tjJ3l9 ~gctl24 of29 Data Path Data File Aeq On Operator Sample Mise ALS vial Quant itation Report C:\msdehem\1\DATA\AUGlI-C\05AUG11A\ R67L1089 .D 5 Aug 2011 4 :24 pm 1l0S10S-009A SAMP 5 .0ML 10F3 16 Sample Multiplier : 1 Quant Time : Aug 05 16 :39 :23 2011 Quant Method C:\MSDCHEM\1\METHODS\AFULLW_36 .M Quant Title VOA Calibration QLast Update Wed Jul 27 12 :~3 :03 2011 Response via Initial Calibration (QT Revie\~ed) Abundance TIC: R67L 1 089.D\data.ms 1600000 1500000 1400000 't g ij 5 0 ~ f m 1.300000 5 ~ $ IIJ !!l .. 1200000 E! ., ~ ~. u. ~ 1100000 1000000 I 900000 800000 700000 (J) (J) g g .l! f 9 E e .0 g &. '6 ..., I 0 I ~ "t '" r ~ i5 ~ e :> '" I I I 600000 500.000 400000 300000 I 200000 100000 , I o I I I I' I J I I I , i Ii Ii Time-> 2.00 2.50 3.00 3.50 4_00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50 AFULLW_36 .M Fri Aug 05 16 :39:36 2011 Report Dale; 8/1 2I2IJI3I9Ep'ugc.42s of29 Data Path Data File Aeq On Operator Sample Mise ALS Vial Quantitation Report C:\msdehem\1\DATA\AUGll-C\05AUG11A\ R54LCS20.D 5 Aug 2011 12:18 pm LCS VOC 080511A LCS SEE COVERSHEET FOR 10 AND AMOUNTS 3 Sample Multiplier: 1 Quant Time: Aug 05 12:35:09 2011 Quant Method C:\MSDCHEM\1\METHODS\AFULLW_36.M Quant Title VOA Calibration QLast Update Wed Jul 27 12:13:03 2011 Response via Initial Calibration (QT Reviewed) Abundance TIC: R54LCS20.D\data.ms 4200000 4000000 3800000 3600000 3400000 3200000 3000000 ::;;; 2800000l 2600000 2400000 'l. I t. ¥l ci> c ~ 0 ~ f-f-11 t: ::> 51.! ~ en " .0 e 2200000 20000001 g i" 15 '.!O E g I~ e Co m OJ I"" ::> t! " E (f) .c e 1800000 1600000 g 0 u: c: ~ 1 g £'j 1400000 II! 1200000 1000000 800000 ! '" ill '" ~a: Jl! Q; 600000 2 -E ~~ e OJ 0 ]-E'E ~~~ 400000 j ! ~~ o~ ~e -g allf-=: lID I " 1 • • I ' Time--> 2.00 2..50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11 .50 AFULLW_36.M Fri Aug 05 13:34:10 2011 Report Date: 8/12/2ijfljgEp'e.gil26of29 Data Path Data File Acq On Operator Sample Mise ALS Vial Quantit ation Report C :\msdchem\~\DATA\AUG11-C\05AUG1lA\ R56LMBLK .D 5 Aug 2011 12 :56 pm ME VOC 08051lA MELK 5 .0ML 5 Sample Multiplier : 1 Quant Time: Aug 05 13 :31 :58 2011 Quant Method C:\MSDCHEM\l\METHODS\AFULLW_36.M Quant Title VOA Calibration QLast Update Wed Jul 27 12:13 :03 2011 Response via Initial Calibration (QT Revi ewed) Abundance 2400000 TIC: R56LMBLK.D\data.ms 2300000 2200000 2100000 2000000 1900000 1800000 1700000 1600000 1500000 1400000 1300000 1200000 1100000 1000000 900000 800000' 700000 600000 500000 400000 300000 200000 100000 o 1ime-> l/\ i , I i I • l 2.00 2.50 3.00 3.50 4.00 4.50 AFULUC36. M Fri Aug 05 13 : 34 : 43 2011 II.! i ~ ..: a ~ E e .2 ~ ~ 0 E ~ ~ ~ ;, <h I \ I 5.00 '$ ~ ~ ~ I!! .2 ~ .<: ~ 0 ~ R :ti c ". ~ ~ c ~ j <i ~ ~ ell i j If ~ ~ I I T -, I I I 5.50 6.00 6.50 7.00 7.50 8.00 I , 8.50 9.00 9.50 10.00 10.50 11.00 11.50 Report Date: 8/12/2iYf:'!I9'''P'ogel27 of29 Data Path Data File Aeq On Operator Sample Mise ALS Vial Quantitation Report C:\msdehem\1\DATA\AUGI1-C\05AUG11A\ R61S1081.D 5 Aug 2011 2:30 pm 1l08108-001AMS MS 5.0ML 20F3 10 Sample Multiplier: 1 Quant Time: Aug 05 14:42:29 2011 Quant Method C:\MSDCHEM\1\METHODS\AFULLW_36.M Quant Title VOA Calibration QLast Update Wed Jul 27 12:13:03 2011 Response via Initial Calibration (Not Reviewed) Abundance TIC : R61 S1 081.D\data.ms 2600000 2500000 2400000 2300000 2200000 2100000· 2000000 1900000 1800000 1700000 1600000 1500000 g '" -g E o E ~ '" Time--> 2.00 AFULLW_36.M Fri Aug 05 14:43:22 2011 '" ~ " c: <ll .2 0 f- " en g ~ Q) D ~ g rr: CJ ~ 1 i ~ i!l OJ co i:! 1l OJ .<J ~ ~ 0 0 :c ~ (J is 0 .... f- 0 ~ en_ ~ ~ .<J ~ g '5 E ~ '" '5 " en ~ ~ 0 t~ 1) It' ~ " f a. I~ Report Date: 8112/2ijJljgEp'tlg#28 of29 Data Path Data File Aeq On Oper,ator Sample Mise ALS Vial Quan titat'0n Report C:\msdehem\1\DATA\AUGll-C\OSAOGllA\ R62Dl081 .D 5 Aug 2011 2 :49 pm nOBl08-001AMSD MSD 5 .0ML 30E3 11 Sample Multiplier : 1 Quant Iime : Aug 05 15 :01 :22 2011 Quant Method C :\MSDCHEM\1\METHODS\AFULLW_36 .M Quant Tit le VOA Calihrati on QLast Update Wed Jul 27 12 :l3 :03 2011 Response via Ini tial Calibration (No t Revi ewed) Abundance TIC: R62D1081.D\datams 2500000 2400000 2300000 ti ~ 2200000 ~ !:! :;l j 2100000 ~ 0 ~ 0 2000000 Iii " 1900000 1800000 ~ "1 ~ g ~ ~ (!. ~ " UI ~ 1700000 g 2 m 1600000 ~ 1500000 lti 1400000 1300000 1200000 1100000 1000000 I I ~ g ~ """ ~ .s j ~ ~ ~ u.. .~ a ~ ~ II i ~ .. 900000 800000 8' ,'" 1 700000 ~ ... 0 600000 500000 400000 'l!! ~ '5 11 UI 0 ., il8 ~ ~ -, ou~ 300000 !! IT ... 200000 ~ tl c; E" ~ c E e m 100000 Time--> r ) 6.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 7.00 7.50 8.00 8.50 AFUL LIC36 .M Fri Aug 05 16 :25 :49 2011 I i ~ 12 2!~ !.I ..... ... ~M %'j " • -~ z I Ii II i III I j i \ I J i' '. i 9.00 9.50 10.00 10.50 11.00 11.50 American West Analytical Laboratories WORK ORDER Summary Client: Client 10: Project: Comments: Sample ID 1108108-001A J 108 J 08-002A 110810S-003A 1108108-D04A 110S108-DOSA 11 081 08-006A 1l0810S-007A II0810S-00SA 110SlOS-009A Denison Mines DENIOO Contact: 3rd Quarter Ground Water 2011 QC Level: No Hard Copies (UL). QC 3 & SUlTunary. EDD-CSV. Report THF to 1 )lg/L.; Client Sample ID Collected Date Received Date MW-ll 8/3120 II 1025h S/5/20 II 0945h MW-14 S/3/201 J 1335h MW-25 8/3120 II 1045h MW-26 S/3/2011 0835h -. MW-30 S/3/2011 1445h MW-31 8/2/2011 1400h MW-35 8/2/2011 1430h MW-65 8/3/2011 083511 Trip Blank SI2I2011 Work Order: 1108108 Page 1 of 1 8/5/20 II Jo Ann Tischler LEVEL 1II WO Type: Project D6 Date Due Matrix Test Code Sel Storage 8/19/2011 Aqueous 8260-W ~ VOCFridge 3 8260-W ~ VOCFridge 8260-W ~ VOCFridge 8260-W ~ VOCFridge 8260-W ~ VOCFridge 8260-W ~ VOCFridge --'-' 8260-W ~ VOCFridge -S260-W ~ VOCFridge 8260-W ~ VOCFridge \ \o1)\oi Sheet 1 of 1 CHAIN OF CUSTODY Samples Shipped to: American West Analytical Lab 463 West 3600 South Salt Lake City, Ut 84115 Contact: Ryan Palmer or David Turk Ph: 435 678 2221 rpalmer@denisonmlnes.com dturk@denisonmines.com Chain of Custody/Sampling Analysis Request P . t rOJee S amplers N ame S amplers S· Ignature 3rd Quarter Ground ~oM«-))~ Water 2011 Tanner Holliday ~~ Date Time Sample 10 Collected Collected Laboratory Analysis Requested MW-11 8/3/2011 1025 THF MW-14 8/3/2011 1335 THF MW-25 8/3/2011 1045 THF MW-26 8/3/2011 835 THF MW-30 8/3/2011 1445 THF MW-31 8/2/2011 1400 THF MW-35 8/2/2011 1430 THF MW-65 8/3/2011 835 THF Trip Blank 8/2/2011 • Please notify Ryan Palmer or Tanner Holliday of Reciept tempature on these samples Immediately! Thank you. Relinquished By:(Signature) ~~/:I~~ Relinquished By:(Signature) DatelTime Receive By:(Signature) 8/4/2011 1130 DatelTime :ab~rcCT'K~~'f>!L.-__ _ Samples Were: CDC Tape Was: Container Type: ~hippedBy: LA~.)S Present on Outer Package o A W AL Supplied Plastic o Hand Delivered ~~s DNa DN/A o A WAL Supplied Clear Glass D Ambient Unbroken on Outer package o A WAL Supplied Amber Glass ....-/ ~hilled IJ]~ ONo DN/A o A WAL Supplied VOA/TOC/~ ~eralure -z.."!J °C Present on Sample D Amber 0 Clear 0 Readspace 1 0 Headspace Rec. Broken/Leaking DYes ~o ON/A DYes ~ DN/A o Non A WAL Supplied coo('ainer Notes: Unbroken on sa~ 7 DYes ONo 7A Properly Preserved M'Yes ONo ON/A Notes: Notes: ./ Rec. Within Hold 'ff"Yes DNa Discrepancies Between Labels and COC Notes: Notes: ~ ,,/ Bottle Type Preservative All pHs OK ../ Ammonia pH <2 H2SO4 V COD pH <2 H2S04 7 Cyanide PH >12 NaOH V Metals pH <2 HN03 ../ N02 & N03 pH <2 H2SO4 V Nutrients pH <2 H2SO4 ../ O&G pH <2 HCL /v Phenols pH <2 H2SO4 /' Sulfide pH> 9NaOH, ZnAC /' TKN pH <2 H2SO4 /" TOC pH <2 H3P04 /" TP04 pH <2 H2SO4 / TPH pH <2 HCL /" V / /' / Procedure: Pour a small amount of sample in the sample lid Pour sample from Lid gently over wide range pH paper Do Not dip the pH paper in the sample bottle or lid 1) 2) 3) 4) 5) 6) 7) If sample is not preserved properly list its extension and receiving pH in the appropriate column above Flag CDC and notify client for further instructions Place client conversation on CDC Samples may be adjusted at client request .1 \ 1 No. Rec./' /'" ....... V DYes s-No UPS Internet Shipping: Shipment Label UPS Internet Shipping: View/Print Label 1. Print the label(s): Select the Print button on the print dialog box that appears. Note: If your browser does not support this function select Print from the File menu to print the label. 2. Fold the printed label at the solid line below. Place the label in a UPS Shipping Pouch. If you do not have a pouch, affix the folded label using clear plastic shipping tape over the entire label. 3. GETTING YOUR SHIPMENT TO UPS Customers without a Daily Pickup Schedule a same day or future day Pickup to have a UPS driver pickup all of your Internet Shipping packages. Hand the package to any UPS driver in your area. Take your package to any location of The UPS Store®, UPS Drop Box, UPS Customer Center, UPS Alliances (Office Depot® or Staples®) or Authorized Shipping Outlet near you. Items sent via UPS Return Services(SM) (including via Ground) are also accepted at Drop Boxes. To find the location nearest you, please visit the 'Find Locations' Quick link at ups.com. Customers with a Daily Pickup Your driver will pickup your shipment(s) as usual. FOLD HERE Page 1 of 1 llttps:1 Iwww.ups.com/uis/ create? ActionOriginPair=defauIt_PrintWindowPage&key= label... 8/4/2011 JoAnn Tischler Denison Mines 1050 17th Street, # 950 Anh: I iC;:;1l W(~st Denver, CO 80265 An',I'IT1CAI I /lDORATORlr So 463 West 3600 South Salt Lake City, UT 84115 Phone: (801 )263-8686 Toll Free: (888) 263-8686 Fax: (801 ) 263-8687 e-mail: awal@awal-Iabs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha TEL: (303) 389-4132 RE: 3rd Quarter Ground Water 2011 Dear JoAnn Tischler: Lab Set ID: 1108246 American West Analytical Laboratories received 3 sample(s) on 8/12/2011 for the analyses presented in the following report. All analyses were performed in accordance to The NELAC Institute protocols unless noted otherwise. American West Analytical Laboratories is certified by The NELAC Institute in Utah and Texas; and is state certified in Colorado, Idaho, and Missouri. Certification document is available upon request. If you have any questions or concerns regarding this report please feel free to call. The abbreviation "Surr" found in organic reports indicates a surrogate compound that is intentionally added by the laboratory to determine sample injection, extraction, and/or purging efficiency. The "Reporting Limit" found on the report is equivalent to the practical quantitation limit (PQL). This is the minimum concentration that can be reported by the method referenced and the sample matrix. The reporting limit must not be confused with any regulatory limit. Analytical results are reported to three significant figures for quality control and calculation purposes. QA Officer Thank You, Ky I e F. Digitally signed by Kyte F. Gross ON: cn=Kyte F. Gross. o=AWAL. ou=AWAL, email=kyle@awal- G labs.com, c=US ross 001.:2011.08.1813:11:54-06'00' Approved by: Laboratory Director or designee Report Date: 8/1 5/2011 Page 1 of 17 All analyses applicable to the CWA. SDWA, and ReRA are performed in accordance to NELAC protocols. Pertinent sampling infonnalion is located on the attached COCo This report is provided for the exclusive usc oflhe addrc.!isee. Privileges of subsequent usc of the name of this company or any member of its staff, or reproduction-oflhis· report in connection with th\! advertisement, prgmolion or sale of any product or process, or ill connection with the. re-publicalion of this report for any purpose other than for the addressee will be granted only on contact This contpany accepts no responsibility except for the duc perfomlance of inspection and/or analysis in good faith and according fa the rules oflhe trade and of science American West A f~ A J V TIC A L I A. (3 ('I ~ A TOR I I S 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer SAMPLE SUMMARY Client: Project: Lab Set ID: Denison Mines 3rd Quarter Ground Water 2011 1108246 Date Received: 8/12/2011 0935h Lab Sample ID Client Sample ID Date Collected 1108246-001A MW-36 8/912011 1150h 1108246-002A MW-37 8/1112011 0815h 1108246-004A Trip Blank 8/912011 Contact: Jo Ann Tischler Matrix Analysis Aqueous VOA by GCIMS Method 8260C/5030C Aqueous VOA by GCIMS Method 8260C/5030C Aqueous VOA by GCIMS Method 8260C/5030C Report Date: 8/15/2011 Page 2 of 17 All analyses applicable to the CWA. SDWA, and ReRA arc performed in accordance 10 NELAC protocols Pertinent sampling infonllalion is localed on the attached COCo lllis report is provided for Ihe exclusive use of the addressee Privileges of subsequent u'se oflhe name oflhi5 company or any member ufits staff, or reproductiOll of this report in connection with th~ advertisement, promotion or sole afaRY produ~t or process. or in connection with the Te-publication of.this repan [oTany purpose other than for the addresscc will be granted only on contact. This company accepts no responsibility except for the due perfomlance of inspection and/or analysis in good faith and according to the rules of Ihc trade and of science. II t~ " , '( T' C A' ,1\ ,1 !) ~ A Ton I S 463 West 3600 South Salt Lake City, UT 84115 Phone: (801 ) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer Volatile Case Narrative Client: Contact: Denison Mines Jo Ann Tischler Project: Lab SetID: Sample Receipt Information: Date of Receipt: Date(s) of Collection: Sample Condition: C-O-C Discrepancies: Method: Analysis: 3rd Quarter Ground Water 2011 1108246 8112/2011 8/9 & 8/1112011 Intact None SW-8468260C/S030C Tetrahydrofuran General Set Comments: Tetrahydrofuran was not observed above reporting limits. Holding Time and Preservation Requirements: All samples were received in appropriate containers and properly preserved. The analysis and preparation of all samples were performed within the method holding times following the methods stated on the analytical reports. Analytical QC Requirements: All instrument calibration and calibration check requirements were met. All internal standard recoveries met method criterion. Batch QC Requirements: MB, LCS, MS, MSD, RPD, and Surrogates: Method Blanks (MBs): No target analytes were detected above reporting limits, indicating that the procedure was free from contamination. Laboratory Control Sample (LCSs): All LCS recoveries were within control limits, indicating that the preparation and analysis were in control. Matrix Spike / Matrix Spike Duplicate (MSIMSD): All percent recoveries and RPDs (Relative Percent Differences) were inside established limits, indicating no apparent matrix interferences. Surrogates: All surrogate recoveries were within established limits. Corrective Action: None required. Report Date: 8/15/2011 Page 3 of I 7 All analyses applicable 10 the CWA, SDWA, and RCRA are perrormed in accordance to NELAC protocols. Pertinent sampling inronnalion is located on the attached COc. 111is report is provided for the exclusive use oflhc addressee. Privilegos of sub:;;equen( use oflhe name of this.company or. any member of its slaff, or reproduction of-this report in connection with the advcrtiscment, promC'ltion or sale of any product or process, or in connection·with thc re~publjcalion of Ihis report for any purpose other than for the addressee will be. granted only un contact This company accepts no responsibility except for the due perfonnancc of inspection and/or analysis in good faith and according to the rules of lhe tmde and of science American West ,/ .. NALY'TICAL LAI::lORATORIE.S Client: Denison Mines Lab Set ID: 1108246 Project: 3rd Quarter Ground Water 2011 SampleID Analyte LCS VOC 081211A Tetrahydrofuran LCS VOC 081211A Surr: 1,2-Dichloroethane-d4 , LCS VOC 081211A Surr: 4-Bromofluorobenzene LCS VOC 081211A SUIT: Dibromofluoromethane LCS VOC 081211A Surr: Toluene-d8 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686, Toll Free: (888) 263-8686, Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com, web: www.awal-labS.com Units IlgIL %REC %REC %REC %REC C SUMMARY REPORT Amount Method Result Spiked SW8260C 12.6 20.00 SW8260C 49.2 50.00 SW8260C 51.3 50.00 SW8260C 50.9 50.00 SW8260C 49.7 50.00 Contact: Dept: QC Type: Original Jo Ann Tischler MSVOA LCS Amount %REC Limits 0 62.8 43-146 98.4 69-132 103 85-118 102 80-120 99.4 81-120 RPD %RPD Limit Kyle F. Gross Laboratory Director Jose Rocha QA Officer Qual Date Analyzed 8/12/2011 1210h 8/12/2011 1210h 8/12/2011 1210h 8/12/2011 1210h 8/12/2011 1210h Report Date: &/1512011 Page 7 of17 All analyses applicable to tbe CWA. SDWA. and RCRA are performed in accordance to NELAC protocols. Pertinent sampling information is located on the attached COCo This report is provided for the exclusive use of the addressee. Privileges of subsequent use of the narne of this company or any member of its staff, or reproduction of this report in connection with the advertisement, promotion or sale of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility except for the due performance of inspection and/or analysis in good faith and according to the ru1es of the trade and of science. American West ANAl'!'T CAL LA80R/l.TOA ~s Client: Denison Mines Lab Set ID: 1108246 Project: 3rd Quarter Ground Water 2011 SampleID Analyte MB VOC 081211A Tetrabydrofuran MB VOC 081211A Surr: 1,2-Dichloroethane-d4 MB VOC 081211A Surr: 4-Bromofluorobenzene MB VOC 08121 IA Surr: Dibromofluoromethane MB VOC 081211A Surr: Toluene-d8 463 West 3600 South Salt Lake City, DT 84115 Phone: (801) 263-8686, Toll Free: (888) 263-8686, Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com, web: www.awal-Iabs.com Units ~g/L %REC %REC %REC %REC OC SUMMARY REPORT Amount Metbod Result Spiked SW8260C < 1.00 SW8260C 51.5 50.00 SW8260C 54.7 50.00 SW8260C 50.9 50.00 SW8260C 50.3 50.00 Contact: Dept: QC Type: Original Jo Ann Tischler MSVOA MBLK Amount %REC Limits 103 69-132 109 85-118 102 80-120 101 81-120 RPD %RPD Limit Kyle F. Gross Laboratory Director Jose Rocha QA Officer Qual Date Analyzed 8112/2011 1248b 8/12/2011 1248h 8112/2011 1248h 8/12/2011 1248h 8/12/2011 1248h Report Date: 8/15/2011 Page 8 of 17 All analyses applicable to the CWA. SDWA. and RCRA are perfonned in accordance to NELAC protocols. Pertinent sampling information is located on the attached COCo This report is provided for the exclusive use of the addressee. Privileges of subsequent use oflhe name ofthis company or any member of jts staff, or reproduction ofrhis repon in connection with the advertisement, promotion or sale of any product or process, or in connection with the re-publication or this report for any purpose other than for the addressee will be granted only on conract. This company accepts no responsibility except for the due perfonnance of inspection andlor analysis in good faith and according [0 the rules of the trade and of science. American West Al\f,lYT CAL LABORATOR lS Client: Denison Mines Lab Set ID: 1108246 Project: 3rd Quarter Ground Water 2011 Sample ID Analyte I 108246-00 I AMS Tetrahydrofuran I I 08246-00 I AMS Surr: 1,2-Dichloroethane-d4 1108246-001AMS Surr: 4-Bromofluorobenzene l108246-001AMS Surr: Dibromofluoromethane I I 08246-00 lAMS Surr: Toluene-d8 463 West 3600 South Salt Lake City, ur 84115 Phone: (801) 263-8686, Toll Free: (888) 263-8686, Fax: (801) 263-8687 e-mail: awal@awal-labs.com, web: www.awal-lahs.com QC SUMMARY REPORT Contact: Dept: Jo Ann Tischler MSVOA QC Type: MS Amount Original Units Method Result Spiked Amount %REC Limits flg/L SW8260C 13.4 20.00 0 67.0 43-146 %REC SW8260C 57.6 50.00 115 77-144 %REC SW8260C 51.6 50.00 103 80-123 %REC SW8260C 54.5 50.00 109 80-124 %REC SW8260C 48.5 50.00 97.0 80-125 RPD %RPD Limit Kyle F. Gross Laboratory Director Jose Rocha QAOfficer Qual Date Analyzed 8112/2011 144lh 8/12/2011 1441h 8/12/2011 1441 h 8/12/2011 144lh 8112/2011 1441h Report Date: 8/15/2011 Page 9 of 17 All analyses applicable to th. CWA. SDWA. and RCRA are petformed in accordance to NELAC proracols. Pertinent sampling information is located on the attached COCo This report is provided for rhe exclusive use of the addressee. Privileges ofsubs<quent use ofthc name of this company or any member afits staft: or reproduction of this report in connection with the advertisement, promotion or sale of any product or process. or in connection with the re-publication of this report for any purpose other than for the addressee will be granted Daly on contact. This company 3i:ccpts no responsibility except for the due performance of inspection and/or analysis in good faith and according to the rules of the trade and of science. American West Af'oiAL'I'TiCAL lAHO~ATOR lS Client: Denison Mines Lab Set In: 1108246 Project: 3rd Quarter Ground Water 2011 , SampleID Analyte 1108246-001AMSD Tetrahydrofuran II08246-001AMSD Surr: 1,2-Dichloroethane-d4 I 108246-00 I AMSD Surr: 4-Bromofluorobenzene 1108246-001AMSD Surr: Dibromofluoromethane II 08246-00J AMSD Surr: Toluene-d8 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686, Toll Free: (888) 263-8686, Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com, web: www.awal-Iabs.com OC SUMMARY REPORT Contact: Dept: Jo Ann Tischler MSVOA QC Type: MSD Amount Original Units Method Result Spiked Amount %REC Limits IlgIL SW8260C 14.6 20.00 0 73.2 43-146 %REC SW8260C 57.8 50.00 116 77-144 %REC SW8260C 52.0 50.00 104 80-123 %REC SW8260C 55.0 50.00 110 80-124 %REC SW8260C 48.0 50.00 95.9 80-125 RPD %RPD Limit 8.92 25 Kyle F. Gross Laboratory Director Jose Rocha QA Officer Qual Date Analyzed 8112/2011 1500h 8/12/2011 1500h 8/12/2011 1500h 8/12/2011 1500h 8/12/2011 1500h Report Date: 8/15/2011 Page 10 of 17 All analyses applicable to the CWA. SDWA, and RCRA are perfonned in accordance to NELAC protocols. Pertinent sampling infonnation is located on tlte attached COCo This report is provided for the exclusive use of the addressee. Privileges of subsequent use of the name of this company or any member of its staff, or reproduction of this report in connection with the advertisement, promotion or sale of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility except for the due performance of inspection and/or analysis in good faith and according to the rules of the trade and ofsciencc:. Quantitation Report Data Path Data File Aeq On Operator Sample Mise C:\msdehem\l\DATA\AUG11-C\l2AUG11A\ S99L2461.0 12 Aug 2011 1:26 pm 1108246-001A SAMP 5.OML 10F3 ALS Vial 7 Sample Multiplier: 1 Quant Time: Aug 12 13:38:45 2011 Quant Method C:\MSOCHEM\1\MSTHOOS\AFULLW_36 .M Quant Title VOA Calibration QLast Update Wed Jul 27 12 :13:03 2011 Response via Initial Calibration Abundance 1800000 17000001 '600000 '500000 '000000 800000 700000 600000 '00000 300000 200000 ,I (OT Reviewed) I ; o ---"--------------'-----r---__ _ 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 6.00 6.50 9.00 9.50 10.00 10.50 11.00 11.50 AFULLW_36.M Fri Aug 12 13:38:59 2011 Page: 4 Rcpon Date: 811 SnOll Page II of 17 Data Path Data rile Aeq On Operator Sample Mise ALS Vial Quantitation Report C:\msdehem\1\DATA\AUG1l-C\12AUG11A\ TOOL2462 .D 12 Aug 2011 1 :45 pm 1l08246-002A SAM? 5.0ML 10r3 B Sample Multiplier : 1 Quant Time: Aug 12 14:09 :45 2011 Quant Method C:\MSDCHEM\1\METHODS\AFULLW_36.M Quant Title VOA Calibration QLast Update Wed Jul 27 12 :13 :03 2011 Response via Initial Calibration (QT Reviewed) Abundance TIC: TOOL2462.D\data.ms 1700000 I 1600000 1500000 1400000! 1300000 1200000 1100000 1000000 900000· 800000· 700000 600000 500000' 400000 3000001 I I 200000 100000 I II: ~ '" ~ ~ ~ -5 .!l! ~ ~ 0 ~ 0 i ~ ~ "r. c ~ ~ I r .,; 1 ~ ! 6 ::: c e '" .§ j !II ~ .2 I ~ ":. 0 L ~ ; .& Jl I: " '" .0" -----Time--> 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11 .50 AFULLW_36.M Fri Aug 12 14 :10:03 2011 Page: 4 Report Dale: 8fl5/20 II Page 12 of 17 Data Path Data File Aeq On Operator Sample Mise ALS Vial Quantitation Report C:\msdehem\1\DATA\AUG11-C\l2AUGllA\ T01L2464.D 12 Aug 2011 2:04 pm 1108246-0041'. SAMP 5 .0ML 10F3 9 Sample Multiplier: 1 Quant Time : Aug 12 15:22:43 2011 Quant Method C:\MSOCHEM\1\METHODS\AFULLW_36 .M Quant Title VOl'. Calibration QLast Update Wed Jul 21 12 :13 :03 2011 Response via I nitial Calibration (QT Reviewed) TIC: TOI L2464.O\dala.ms 1<00000 1300000 1200000 1100000 1000000 I 900000 800000 700000 800000 500000 '00000 I I B - .i .i 300000 200000 100000 o -------------. - Time··> 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5:50 6.00 6.50 7.00 7.50 6.00 8.50 9.00 9.50 10.00 10.50 11.00 11 .50 AFULLW_36.M Fri Aug 12 15:30 :49 2011 Page: ., Report Dale: 8/15120 II Page 13 of 17 Data Path Data File Aeq On Operator Sample Mise ALS Vial Quantitation Report C:\msdehem\1\DATA\AUG11-C\12AUG11A\ S95LCS20.D 12 Aug 2011 12:10 pm LCS VOC 081211A LCS SEE COVERSHEET FOR 10 AND AMOUNTS 3 Sample Multiplier: 1 Quant Time: Aug 12 12:23:24 2011 Quant Method C:\MSDCHEM\1\METHODS\AFULLW_36.M Quant Title VOA Calibration QLast Update Wed Jul 27 12:13:03 2011 Response via Initial Calibration (QT Reviewed) Abundance TIC: S95LCS20.Dldata.ms 3200000 3000000· 28000001 2600000 2400000 2200000 2000000 1800000 1600000 1400000 I 1200000 1000000 800000 600000 ~ ~ §a::; g~ 400000! I b. ;5~ ~ 200000 ClIO I 0 Time .. > 2.00 AFULLW_ 36.M Fri " , i, 2.50 3.00 Aug 12 ~ Ie .8 e 0 if 0 f0-!!l a: ~ t: " ..c M' ! ~ .. ~~ II to) ~ • ~~ ,I :2 ~ ~I '''-= Ii g '" ";R,z; I .• ,' ~.g ~ .~u ,.:' ,fs.f> .'" "I i: R ~. I I ci::' ".1 ,s< , I , III 1 Ii' " . , , :",1 -'------3.50 4.00 4.50 5.00 5.50 13:37:25 2011 i ~ ~ t: " en 6.00 :=; a: 1 ?< c. ... E "l. .. c: .. N c: .. so e g 'll E e m ~ en 1 I ~ I :Ii 0 ..a.. ---,. --- 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50 Page: 4 Report Date: 8/15/2011 Page 14 of 17 Data Path Data File Aeq On 0pera·tor Sample Mise A.LS Vial Quantitation Report C : \msdehem\l\DATA \AUGll-C\12AUG11A \ S97LMBLK.D 12 Aug 2011 12 :48 pm MB VOC 08121111. MBLK 5 .0ML 5 Sample Mul tiplier: 1- Quant Time : Aug 12 ~3 : 34 : 56 2011 Quant Method C: \MSDCHEM\1 \METHODS\AFULLW_36 . M Quant Title VOA Calibra'tion QLast Update Wed Jul 27 12 :13 :03 2011 Response via Initial Calibration (QT Reviewed) Abf!llib1llft1 TIC: S97LMBLK.D\d;rta.ms I 1700000 1 <: .. 1600000 1500000 1400000 13000001 tit I l l!I B oS! I z:; 0 I ! .. g ",' c i ~ Iii I:: ~-'" rn ". m t " r 1200000[ 1100000 1000000' 900000- 800000i I 700000 i j 600000 '" g I! oS! i :l} '" ,S ~ 500000j c ~ " 0 400000 300000· 200000 100000 o Time·> 2.00 2 .. 50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11 .50 AFULLW_36 .M Fri Aug 12 13:37 :58 2011 Page : 4 Report Dote: 811 5120 II Page 15 of 17 Data Path Data File Aeq On Operator Sample Mise ALS Vial Quantitation Report C:\msdehem\l\DATA\AUG11-C\12AUG11A\ T03S2461.D 12 Aug 2011 2:41 pm 1l08246-001AMS MS 5.0ML 20F3 11 Sample Multiplier: 1 Quant Time: Aug 12 15:23:51 2011 Quant Method C:\MSDCHEM\1\METHODS\AFULLW_36.M Quant Title VOA Calibration QLast Update Wed Jul 27 12:13:03 2011 Response via Initial Calibration (QT Reviewed) Abundance TIC: T03S2461.D\data.ms 2600000' 2500000. 2400000' I I 2300000 1 22000001 21000001 I 2000000 1900000 1800000 17000001 1600000' 1500000 1400000i I 13000001 12000001 1100000! I 1000000: I 900000 800000 7000001 6000001 500000ii 400000~ ~ a:. 300000i i :~ ~ .-.s, 200000,'" ~ 100000' I " o I " v ot5 I ~ CD N c: ~ i E I m "!. ., j (j) c: ~ ,;; ~ ~ ~ .§ (/J g '" ~ !! '" --.--~~-~'----,----. -r ----. ~. Time-> 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50 AFULLW_36.M Fri Aug 12 15:28:50 2011 Page: 4 Report Date: 8/15/2011 Page 16 of 17 Data Path Data File Aeq On Operator Sample Mise ALS Vial Quantitation Report C:\msdehem\1\DATA\AUGII-C\12AUG11A\ T04D2461.D 12 Aug 2011 3:00 pm 1l08246-001AMSD MSD 5.0ML 30F3 12 Sample Multiplier: 1 Quant Time: Aug 12 15:24:12 2011 Quant Method C:\MSDCHEM\1\METHODS\AFULLW_36.M Quant Title VOA Calibration QLast Update Wed Jul 27 12:13:03 2011 Response via Initial Calibration (QT Reviewed) Abundance TIC: T04D2461.D\data.ms 2700000 2600000 2500000 2400000 2300000 2200000, I 2100000 20000001 1 I 1900000i 1800000, I 1700000i 1600000: 15000001 1 1400000 1300000 1 1200000 1100000! 1000000: 900000 800000- 700000 600000 500000~ = 'CD 400000~ a;, ~~ 300000~ I j~ ~ ~ ~ 2000001 i I I 100000 1 ,1, : ot . "!. ~ '" CD ~ l-~ 0 '" , I -1._.·------,...... ~ Iii I ~ 0 ~ I '" I .,; Iii t! II e I :;; ox: I ~ til CD " ~ a. .. E 1 II I " I I --.;. __ ._1 I I • I 1.:_-+-____ _ Tlme--> 2,00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50 AFULLW_36.M Fri Aug 12 15:29:23 2011 Page: 4 Report Date: 8/15/2011 Page 17 of 17 American West Analytical Laboratories WORK ORDER Summary Work Order: 1108246 Client: Denison Mines Page 1 of 1 8/12/2011 ClientlD: DEN 100 Contact: Jo Ann Tischler Project: 3rd Quarter Ground Water 2011 QC Level: LEVEL III WOType: Project Comments: QC 3 & Summary. EDD-CSV. Report THF to 1 !lg/L.; SampleID Client Sample ID Collected Date Received Date Date Due Matrix Test Code Sel Storage 1l0S246-001A MW-36 8/912011 llSOh S112/2011 093Sh 8/2612011 Aqueous 8260-W ~ VOCFridge 3 IIOS246-002A MW-37 S/ll/20ll 0815h 8260-W ~ VOCFridge 1108246-003A MW-70 8/10120111420h 0 1108246-004A Trip Blank 8/9/20]] 8126/2011 8260-W ~ VOCFridge 2 .. EN I SO J) ~ ~ ~I Shee~t 1 of---'-------J1 MINES CHAIN OF CUSTODY Samples Shipped to: American West Analytical Lab 463 West 3600 South Salt Lake City, Ut 84115 Contact: Ryan Palmer or David Turk Ph: 435 678 2221 rpalmer@denisonmines.com dturk@denisonmines.com Chain of Custody/Sampling Analysis Request Project Samplers Name Samplers Signature 3rd Quarter Ground :J~~ Water 2011 Tanner Holliday Date Time Sample 10 Collected Collected Laboratory Analysis Requested MW-36 8/9/2011 1150 THF MW-37 8/11/2011 815 THF 'V-u U/ 'V/LV I<fLV 'Nv.1 vf"C, THF "J/e. i-(..'-" 1-r ~~ '",/ Trip Blank 8/912011 -rH-F " .. Please notify Ryan Palmer or Tanner Holliday of Reciept tempature on these samples Immediately! Thank you. Relinquished By:(Signature) ::)~~/"-_'- DatelTime Receiv. a By:(Signature) 8/11/2011 1130 / DatelTime UPS Internet Shipping: Shipment Label UPS Internet Shipping: View/Print Label 1. Print the label(s): Select the Print button on the print dialog box that appears. Note: If your browser does not support this function select Print from the File menu to print the label. 2. Fold the printed label at the solid line below. Place the label in a UPS Shipping Pouch. If you do not have a pouch, affix the folded label using clear plastic shipping tape over the entire label. 3. GETIING YOUR SHIPMENT TO UPS Customers without a Daily Pickup Schedule a same day or future day Pickup to have a UPS driver pickup all of your Internet Shipping packages. Hand the package to any UPS driver in your area. Take your package to any location of The UPS Store®, UPS Drop Box, UPS Customer Center, UPS Alliances (Office Depot® or Staples®) or Authorized Shipping Outlet near you. Items sent via UPS Return Services(SM) (including via Ground) are also accepted at Drop Boxes. To find the location nearest you, please visit the 'Find Locations' Quick link at ups.com. Customers with a Daily Pickup Your driver will pickup your shipment(s) as usual. FOLD HERE co ..,f ..... ..,f ..... https:llwww..ups.com/uis/create?ActionOriginPair=default __ P~tWindowPage&key=lab,,: Page 1 of 1 8/11/2011 EI\ERGY ,., , 1"1 I IJj --. October 07, 2011 Denison Mines USA Corp 6425 S Hwy 191 Blanding, UT 84511 Workorder No.: C11090045 Halena, MT 811-472-0711 • Billings, MT 801-735-4489 . Casper, WY 881-235-0515 Gillette, WY 18B-188-7175 • Rapid City, SD 188-172-12%5 • CoIalle Station, 1X 881-610-2218 ANAL VTICAL SUMMARY REPORT Quote 10: C1640 -POC Wells Project Name: 3rd Quarter Groundwater Resample 2011 Energy Laboratories, Inc. Casper WY received the following 7 samples for Denison Mines USA Corp on 9/1/2011 for analysis. Sample ID Client Sample ID Collect Date Receive Date Matrix Test C11090045-001 MW-14 08/30/11 13:30 09/01/11 C 11090045-002 MW-32 08/30/11 13:05 09/01/11 C11090045-003 MW-65 08/30/11 11 : 10 09/01/11 C 11 090045-004 MW-25 08/30/11 10:4509/01/11 C11090045-005 MW-35 08/30/11 14:35 09/01111 C11090045-006 MW-26 08/30/11 11:10 09/01/11 C 11090045-007 Temp Blank 08/30/11 0:00 09/01111 Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Metals by ICP/lCPMS, Dissolved Nitrogen, Ammonia Nitrogen, Nitrate + Nitrite Gross Alpha minus Rn222 and Uranium Metals by ICP/lCPMS, Dissolved Gross Alpha minus Rn222 and Uranium Same As Above Same As Above Same As Above Same As Above Temperature The analyses presented in this report were performed at Energy Laboratories, Inc., 2393 Salt Creek Hwy., Casper, WY 82601, unless otherwise noted. Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report, the QAlQC Summary Report, or the Case Narrative. The results as reported relate only to the item(s) submitted for testing. All samples are reported on an as received basis unless otherwise indicated. If you have any questions regarding these test results, please call. Report Approved By: o¥~£) Wd~ Reporting Supervisor Digitally signed by Stephanie Waldrop Date: 2011.10.07 10:25:52 -06:00 Page 1 of 20 www.energylab.com AIIIIytIaI ~ S/Ia 1m Halena, MT 177-472-0711 • Billings, MT IGD-735-4419 • Casper, WY 888-235-0515 Gillette, WY 88&-686-7175 • Ra Id City, SD 888-812-1225 . Colle e Stalion 1X 888-690-2218 CLIENT: Denison Mines USA Corp Revised Date: 10/07/11 Project: 3rd Quarter Groundwater Resample 2011 Report Date: 10/04/11 Sample Delivery Group: Cl1090045 CASE NARRATIVE REVISED/SUPPLEMENTAL REPORT The attached analytical report has been revised from a previously submitted report due to the request by Kathy Weinel on October 6, 2011 for the addition of cations on samples -001 through -006. The data presented here is from that additional analysis. ORIGINAL SAMPLE SUBMITTAL(S) All original sample submittals have been returned with the data package. SAMPLE TEMPERATURE COMPLIANCE: 4"C (±2"C) Temperature of samples received may not be considered properly preserved by accepted standards. Samples that are hand delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun. GROSS ALPHA ANALYSIS Method 900.0 for gross alpha and gross beta is intended as a drinking water method for low TDS waters. Data provided by this method for non potable waters should be viewed as inconsistent. RADON IN AIR ANALYSIS The desired exposure time is 48 hours (2 days). The time delay in returning the canister to the laboratory for processing should be as short as possible to avoid excessive decay. Maximum recommended delay between end of exposure to beginning of counting should not exceed 8 days. SOIUSOLID SAMPLES All samples reported on an as received basis unless otherwise indicated. ATRAZINE, SIMAZINE AND PCB ANALYSIS Data for PCBs, Atrazine and Simazine are reported from EPA 525.2. PCB data reported by ELI reflects the results for seven individual Aroclors. When the results for all seven are ND (not detected), the sample meets EPA compliance criteria for PCB monitoring. SUBCONTRACTING ANALYSIS Subcontracting of sample analyses to an outside laboratory may be required. If so, ENERGY LABORATORIES will utilize its branch laboratories or qualified contract laboratories for this service. Any such laboratories will be indicated within the Laboratory Analytical Report. BRANCH LABORATORY LOCATIONS eli-b -Energy Laboratories, Inc. -Billings, MT eli-g -Energy Laboratories, Inc. -Gillette, WY eli-h -Energy Laboratories, Inc. -Helena, MT eli-r -Energy Laboratories, Inc. -Rapid City, SD eli-t -Energy Laboratories, Inc. -College Station, TX CERTIFICATIONS: USEPA: WY00002, Radiochemical WY00937; FL-DOH NELAC: E87641, Radiochemical E871 017; California: 02118CA; Oregon: WY200001; Utah: 3072350515; Virginia: 00057; Washington: C1903 ISO 17025 DISCLAIMER: The results of this Analytical Report relate only to the items submitted for analysiS. ENERGY LABORATORIES, INC. -CASPER,WY certifies that certain method selections contained in this report meet requirements as set forth by the above accrediting authorities. Some results requested by the client may not be covered under these certifications. All analysis data to be submitted for regulatory enforcement should be certified in the sample state of origin. Please verify ELI's certification coverage by visiting www.energylab.com ELI appreciates the opportunity to provide you with this analytical service. For additional information and services visit our web page www.energylab.com. Page 2 of 20 EN:RGY 1\ •• ' _ I .. I ~ 1-.11 • I www.energylab.com AMlyflalbuII-. .. 1m Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WV 888-235-0515 Gillette, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, lX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Revised Date: 10107/11 Report Date: 10104/11 Work Order: C11090045 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater Resample 2011 Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual Method: A4500-NH3 G Batch: R150159 Sample 10: MBLK-1 Method Blank Run: TECHNICON_11 0902B 09/02/11 12:19 Nitrogen, Ammonia as N ND mg/L 0.050 Sample 10: LCS-2 Laboratory Control Sample Run: TECHNICON_11 0902B 09/02/11 12:21 Nitrogen, Ammonia as N 1.95 mg/L 0.050 98 90 110 Sample 10: LFB-3 Laboratory Fortified Blank Run: TECHNICON_11 0902B 09/02/11 12:23 Nitrogen, Ammonia as N 1.94 mg/L 0.050 99 80 120 Sample 10: C11081125-001DMS Sample Matrix Spike Run: TECHNICON_11 0902B 09/02/11 12:45 Nitrogen, Ammonia as N 7.06 mg/L 0.050 101 80 120 Sample 10: C11081125-0010MSO Sample Matrix Spike Duplicate Run: TECHNICON_110902B 09/02/11 12:47 Nitrogen, Ammonia as N 7.09 mg/L 0.050 103 80 120 0.4 10 Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. MDC -Minimum detectable concentration Page 10 of 20 EI\ERGY .\ ·1 •• \1"1., '..,) www.energylab.com ~~"'11U Helena, MT 177-472-0711 • Billings, NT 801-735-4489 . Casper, WY 888-235-0515 Gillatte, WY IBB-BBB-7175 • Rapid City, SD 888-&72-1225 • Coliege Station, TX 888-&80-2218 oAtoe Summary Report Prepared by Casper, WY Branch Revised Date: 10107/11 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater Resample 2011 Analyte Count Result Units Method: E200.7 Sample 10: MB-110914A 5 Method Blank Calcium ND mg/L Iron ND mg/L Magnesium ND mg/L Potassium ND mg/L Sodium ND mg/L Sample 10: LFB-110914A 5 Laboratory Fortified Blank Calcium 49.2 mg/L Iron 0.988 mg/L Magnesium 48.9 mg/L Potassium 43.3 mg/L Sodium 47.1 mg/L Sample 10: C11090045-005BMS2 5 Sample Matrix Spike Calcium 618 mg/L Iron 2.18 mg/L Magnesium 251 mg/L Potassium 102 mg/L Sodium 497 mg/L Sample 10: C11090045-005BMSO 5 Sample Matrix Spike Duplicate Calcium 610 mg/L Iron 2.18 mg/L Magnesium 250 mg/L Potassium 103 mg/L Sodium 495 mg/L Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. Report Date: 10104/11 Work Order: Cll090045 RL %REC Low Limit High Limit RPO RPOLlmlt Qual Batch: R150610 Run: ICP2-C_ll0914A 09/14/11 13:04 0.50 0.030 0.50 0.50 0.50 Run : ICP2-C_ll0914A 09/14/11 13:08 0.50 99 85 115 0.030 99 85 115 0.50 98 85 115 0.50 87 85 115 0.50 94 85 115 Run : ICP2-C_ll0914A 09/14/11 15:21 1.0 70 130 A 0.030 97 70 130 1.0 94 70 130 1.0 88 70 130 1.0 70 130 A Run : ICP2-C_ll0914A 09/14/11 15:25 1.0 70 130 1.3 20 A 0.030 97 70 130 0.2 20 1.0 94 70 130 0.2 20 1.0 89 70 130 1.0 20 1.0 70 130 0.4 20 A A -The analyte level was greater than four times the spike level. In accordance with the method % recovery is not calculated. MDC -Minimum detectable concentration Page 11 of 20 E"fRGY /\ ,( I' ~. I {~'. " ._ www.energylab.com ~~SS-'IIU Helena, MT 877-472-0711 • Billings, MT aol·735-4419 • Casper, WY 881·235-0515 Gillatts, WV IIB·616·7175 • Rapid City, SD 118-&72-1225 • College Station, TX 188·&80-2218 OA/oe Summary Report Prepared by Casper, WY Branch Revised Date: 10107/11 Report Date: 10104/11 Work Order: C11090045 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater Resample 2011 Analyte Method: E200.B Sample 10: LRB Arsenic Cadmium Chromium Cobalt Copper Lead Manganese Mercury Molybdenum Selenium Silver Thallium Tin Uranium Vanadium Zinc Count Result 16 Method Blank ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Units mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Sample 10: LFB Arsenic Cadmium Chromium Cobalt 16 Laboratory Fortified Blank Copper Lead Manganese Mercury Molybdenum Selenium Silver Thallium Tin Uranium Vanadium Zinc Sample 10: C11090045·002BMS4 Arsenic Cadmium Chromium Cobalt Copper Lead Manganese Mercury Molybdenum Qualifiers: RL -Analyte reporting limit. 0.0512 mg/L 0.0518 mg/L 0.0501 mg/L 0.0508 mg/L 0.0520 mg/L 0.0503 mg/L 0.0500 mg/L 0.00515 mg/L 0.0521 mg/L 0.0520 mg/L 0.0204 mg/L 0.0493 mg/L 0.0517 mg/L 0.0511 mg/L 0.0493 mg/L 0.0540 mg/L 16 Sample Matrix Spike 0.0507 mg/L 0.0434 mg/L 0.0487 mg/L 0.0871 mg/L 0.0529 mg/L 0.0519 mg/L 4.92 mg/L 0.00473 mg/L 0.0619 mg/L ND -Not detected at the reporting limit. RL %REC Low Limit High Limit 0.0050 0.00050 0.020 0.010 0.010 0.0010 0.010 0.00050 0.010 0.0050 0.010 0.00050 0.10 0.00030 0.010 0.010 0.0010 0.0010 0.0010 0.0010 0.0010 0.0010 0.0010 0.0010 0.0010 0.0010 0.0010 0.0010 0.0010 0.00030 0.0010 0.0010 0.0010 0.010 0.0010 0.010 0.010 0.050 0.010 0.0010 0.0010 101 104 100 102 104 101 100 103 104 103 102 99 103 102 99 108 99 85 92 94 93 104 95 103 Run: ICPMS2-C_ll0902A Run: ICPMS2-C_ll 0902A 85 115 85 115 85 115 85 115 85 115 85 115 85 115 85 115 85 115 85 115 85 115 85 115 85 115 85 115 85 115 85 115 Run: ICPMS2-C 110902A - 70 130 70 130 70 130 70 130 70 130 70 130 70 130 70 130 70 130 RPO RPOLimlt Qual Batch: R150176 09/02/11 15:08 09/02/11 15:11 09/02/11 15:57 A A -The analyte level was greater than four times the spike level. In accordance with the method % recovery is not calculated. MDC -Minimum detectable concentration Page 12 of 20 EN:RGY ,-, .' I ~ • , I ( ~ I J!' • www.energylab.com ~~"'15Z Helena, MT 877-472-0711 • Billings, MT 801-735-44" • Casper, WY 888-235-0515 Gillette, WY 188-888-7115 . Rapid City, SD 818-&72-1225 • Collage Station, TX 188-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Revised Date: 10/07/11 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater Resample 2011 Analyte Count Result Units Method: E200.8 Sample 10: C11090045-002BMS4 16 Sample Matrix Spike Selenium 0.0477 mg/L Silver 0.0148 mg/L Thallium 0.0526 mg/L Tin 0.0477 mg/L Uranium 0.0575 mg/L Vanadium 0.0476 mg/L Zinc 0.106 mg/L Sample 10: C11090045-002BMSO 16 Sample Matrix Spike Duplicate Arsenic Cadmium Chromium Cobalt Copper Lead Manganese Mercury Molybdenum Selenium Silver Thallium Tin Uranium Vanadium Zinc Qualifiers: RL -Analyte reporting limit. NO -Not detected at the reporting limit. R -RPO exceeds advisory limit. 0.0510 mg/L 0.0435 mg/L 0.0492 mg/L 0.0881 mg/L 0.0534 mg/L 0.0524 mg/L 5.06 mg/L 0.00482 mg/L 0.0627 mg/L 0.0478 mg/L 0.0114 mg/L 0.0524 mg/L 0.0488 mg/L 0.0577 mg/L 0.0477 mg/L 0.108 mg/L Report Date: 10/04/11 Work Order: Cll090045 RL %REC Low Limit High Limit RPO RPOLImit Qual Batch: R150176 Run: ICPMS2-C_ll 0902A 09/02/11 15:57 0.0010 91 70 130 0.010 74 70 130 0.0010 105 70 130 0.0010 95 70 130 0.00030 109 70 130 0.0010 94 70 130 0.010 70 70 130 Run: ICPMS2-C_ll 0902A 09/02/11 16:00 0.0010 100 70 130 0.5 20 0.010 85 70 130 0.3 20 0.0010 93 70 130 0.9 20 0.010 96 70 130 1.1 20 0.010 94 70 130 0.9 20 0.050 104 70 130 0.9 20 0.010 70 130 2.8 20 A 0.0010 96 70 130 1.8 20 0.0010 104 70 130 1.3 20 0.0010 91 70 130 0.2 20 0.010 57 70 130 26 20 SR 0.0010 105 70 130 0.3 20 0.0010 98 70 130 2.3 20 0.00030 110 70 130 0.3 20 0.0010 94 70 130 0.1 20 0.010 73 70 130 1.7 20 A -The analyte level was greater than four times the spike level. In accordance with the method % recovery is not calculated. MDC -Minimum detectable concentration S -Spike recovery outside of advisory limits. Page 13 of 20 EN:RGY i\.'l 1/".1 ' 1/11' www.energylab.com AuIytIaI EIuIIwa SIIa 1m Helena, MT 877-472-0711 • Billings, MT BGI-731-44B! • Casper, WV 888-235-0515 Gillette, WY 188-&18-7175 • Rapid City, SD 888-&12-1225 • College Station, TX 888-&90-2218 QA/QC Summary Report Prepared by Casper, WY Branch Revised Date: 10/07/11 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater Resample 2011 Analyte Count Result Units Method: E200.8 Sample 10: LRB 8 Method Blank Cadmium ND mg/L Chromium ND mg/L Cobalt ND mg/L Copper ND mg/L Manganese ND mg/L Nickel ND mg/L Uranium ND mg/L Vanadium ND mg/L Sample 10: LFB 8 Laboratory Fortified Blank Cadmium 0.0464 mg/L Chromium 0.0464 mg/L Cobalt 0.0459 mg/L Copper 0.0461 mg/L Manganese 0.0452 mg/L Nickel 0.0463 mg/L Uranium 0.0459 mg/L Vanadium 0.0453 mg/L Sample 10: C11090045-003BMS4 8 Sample Matrix Spike Cadmium 0.0400 mg/L Chromium 0.0430 mg/L Cobalt 0.0422 mg/L Copper 0.0439 mg/L Manganese 0.837 mg/L Nickel 0.0501 mg/L Uranium 0.0726 mg/L Vanadium 0.0437 mg/L Sample 10: C11090045-003BMSO 8 Sample Matrix Spike Duplicate Cadmium 0.0408 mg/L Chromium 0.0422 mg/L Cobalt 0.0423 mg/L Copper 0.0456 mg/L Manganese 0.838 mg/L Nickel 0.0541 mg/L Uranium 0.0735 mg/L Vanadium 0.0426 mg/L Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. Report Date: 10/04/11 Work Order: C11090045 RL %REC Low Limit High Limit RPO RPOLimit Qual Batch: R150219 Run: ICPMS2-C_l1 0906A 09/06/11 12:05 0.00050 0.020 0.010 0.010 0.010 0.020 0.00030 0.010 Run: ICPMS2-C_ll0906A 09/06/11 12:08 0.0010 93 85 115 0.0010 93 85 115 0.0010 92 85 115 0.0010 92 85 115 0.0010 90 85 115 0.0010 93 85 115 0.00030 92 85 115 0.0010 91 85 115 Run: ICPMS2-C_l1 0906A 09/06/11 13:31 0.010 80 70 130 0.0010 85 70 130 0.010 82 70 130 0.010 83 70 130 0.010 70 130 A 0.050 80 70 130 0.00030 98 70 130 0.0010 87 70 130 Run: ICPMS2-C_ll 0906A 09/06/11 13:34 0.010 81 70 130 2.2 20 0.0010 84 70 130 1.7 20 0.010 82 70 130 0.2 20 0.010 86 70 130 3.9 20 0.010 70 130 0.1 20 A 0.050 88 70 130 7.6 20 0.00030 99 70 130 1.3 20 0.0010 85 70 130 2.4 20 A -The analyte level was greater than four times the spike level. In accordance with the method % recovery is not calculated. MDC -Minimum detectable concentration Page 14 of 20 EN:RGY .\ ,(, ~ Ii' I ( ,I '/ . www.energylab.com AM/ftIuI ~ SItIu IIJ1 Helena, MT 877-472-0711 • Billings, MT IGD·73S·4481 • Casper, WV 888-235-0515 Gillatte, WY .18·111·7175 • Rapid City, SD 888-112-1225 • Collage Station, IX 888-680·2218 QA/QC Summary Report Prepared by Casper, WY Branch Revised Date: 10/07/11 Client: Denison Mines USA Corp Report Date: 10/04/11 Project: 3rd Quarter Groundwater Resample 2011 Work Order: C11090045 Analyte Count Result Units RL %REC Low Limit High limit RPD RPOLImit Qual Method: E200.8 Batch: R150298A Sample 10: LRB 7 Method Blank Run: ICPMS4-C_ll0907A 09/07/1113:25 Beryllium NO mg/L 0.00050 Chromium ND mg/L 0.020 Cobalt ND mg/L 0.010 Copper ND mg/L 0.010 Manganese ND mg/L 0.010 Nickel ND mg/L 0.020 Vanadium ND mg/L 0.010 Sample 10: LFB 7 Laboratory Fortified Blank Run: ICPMS4-C_ll0907A 09/07/11 13:30 Beryllium 0.0555 mg/L 0.0010 111 85 115 Chromium 0.0538 mg/L 0.0010 108 85 115 Cobalt 0.0537 mg/L 0.0010 107 85 115 Copper 0.0551 mg/L 0.0010 109 85 115 Manganese 0.0518 mg/L 0.0010 104 85 115 Nickel 0.0548 mg/L 0.0010 110 85 115 Vanadium 0.0536 mg/L 0.0010 107 85 115 Sample 10: C11090068-001CMS4 7 Sample Matrix Spike Run: ICPMS4-C 110907A 09/07/11 21 :42 Beryllium 0.0460 mg/L 0.010 92 70 130 Chromium 0.0503 mg/L 0.0010 101 70 130 Cobalt 0.0476 mg/L 0.010 95 70 130 Copper 0.0495 mg/L 0.010 99 70 130 Manganese 0.0519 mg/L 0.010 98 70 130 Nickel 0.0489 mg/L 0.0010 98 70 130 Vanadium 0.0532 mg/L 0.0010 102 70 130 Sample 10: C11090068-001CMSO 7 Sample Matrix Spike Duplicate Run : ICPMS4-C_ll0907A 09/07/11 22 :06 Beryllium 0.0491 mg/L 0.010 98 70 130 6.6 20 Chromium 0.0495 mg/L 0.0010 99 70 130 1.6 20 Cobalt 0.0499 mg/L 0.010 100 70 130 4.8 20 Copper 0.0489 mg/L 0.010 97 70 130 1.2 20 Manganese 0.0543 mg/L 0.010 102 70 130 4.4 20 Nickel 0.0481 mg/L 0.0010 96 70 130 1.5 20 Vanadium 0.0527 mg/L 0.0010 101 70 130 0.8 20 Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. MDC -Minimum detectable concentration Page 15 of 20 EN:RGY ~\ .' I'~"'" i ' ""1 • www.energylab.com AMI1*M~SIIa 1151 Helen., MT 177-472-D711 • Billings, MT IDI-735-4419 • Casper, WY 111-235-0515 GiIIBtto, WY 188-888-7175 • Rapid City, SD 118-172-12%5 • Collage Station, TX 188-6BD-2218 QA/QC Summary Report Prepared by Casper, WY Branch Revised Date: 10107/11 Report Date: 10/04/11 Work Order: C 11090045 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater Resample 2011 Analyte Count Result Units Method: E200.8 Sample 10: C11 090119-001 BMS4 3 Sample Matrix Spike Beryllium 0.0453 mg/L Cobalt 0.140 mg/L Manganese 0.632 mg/L Sample 10: C11090119-001BMSO 3 Sample Matrix Spike Duplicate Beryllium 0.0455 mg/L Cobalt 0.141 mg/L Manganese 0.633 mg/L Sample 10: LRB 3 Method Blank Beryllium NO mg/L Cobalt NO mg/L Manganese NO mg/L Sample 10: LFB 3 Laboratory Fortified Blank Beryllium 0.0549 mg/L Cobalt 0.0515 mg/L Manganese 0.0502 mg/L Qualifiers: RL -Analyte reporting limit. NO -Not detected at the reporting limit. RL %REC Low Limit High limit RPO RPOLimit Qual Batch: R150372A Run: ICPMS4-C_ll 0908A 09/09/11 00:25 0.010 90 70 130 0.010 104 70 130 0.010 70 130 A Run: ICPMS4-C_ll 0908A 09/09/11 00:29 0.010 91 70 130 0.4 20 0.010 106 70 130 0.4 20 0.010 70 130 0.1 20 A Run: ICPMS4-C_ll 0908A 09/08/11 15: 17 0.00050 0.010 0.010 Run: ICPMS4-C_ll 0908A 09/08/11 15:22 0.0010 110 85 115 0.0010 103 85 115 0.0010 100 85 115 A -The analyte level was greater than four times the spike level. In accordance with the method % recovery is not calculated. MDC -Minimum detectable concentration Page 16 of 20 EN:RGY , . , • /~ I ' I III .~ www.energylab.com ~~"'1I5Z Helena, MT 171-472-0711 • Billings, MT 101·735-4489 • Casper, WY 181-235-0515 Gillatte, WY 188·6111·7175 • Rapid City, SD 118·172·1225 • College StatiDn, 1X 811·690·2218 QA/QC Summary Report Prepared by Casper, WY Branch Revised Date: 10107/11 Report Date: 10104/11 Work Order: C11090045 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater Resample 2011 Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLlmlt Qual Method: E353.2 Batch: R150118 Sample 10: MBLK·1 Method Blank Run: TECHNICON_110901A 09/01 /11 14:34 Nitrogen, Nitrate+Nitrite as N ND mg/L 0.10 Sample 10: LCS·2 Laboratory Control Sample Run : TECHNICON_11 0901 A 09/01 /11 14:37 Nitrogen, Nitrate+Nitrite as N 2.46 mg/L 0.10 98 90 110 Sample 10: LFB·3 Laboratory Fortified Blank Run: TECHNICON_110901A 09/01 /11 14:39 Nitrogen, Nitrate+Nitrite as N 1.76 mg/L 0.10 90 90 110 Sample 10: C11090052·002EMS Sample Matrix Spike Run: TECHNICON_11 0901A 09/01/11 18:47 Nitrogen, Nitrate+Nitrite as N 1.98 mg/L 0.10 101 90 110 Sample 10: C11090052·002EMSO Sample Matrix Spike Duplicate Run: TECHNICON_110901A 09/01 /11 18:49 Nitrogen, Nitrate+Nitrite as N 2.03 mg/L 0.10 104 90 110 2.5 10 Qualifiers: RL -Analyte reporting limit. NO -Not detected at the reporting limit. MDC -Minimum detectable concentration Page 17 of 20 EN:RGY '\ _I' I ~, , j I ~ II • www.energylab.com AMIftIaI ExuIIIIIIII SIIa 1152 Helena, MT 877-472-0711 • Billings, MT IGI·731-4489 • Casper, WV 888-235-0515 Gillette, WY 18B-888-7115 • Rapid City, SD 888-&72-1225 • College Station, 1X 888-680-2218 QA/QC Summary Report Prepared by Casper, WY Branch Revised Date: 10/07/11 Report Date: 10/04/11 Work Order: C11090045 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater Resample 2011 Analyte Count Result Units Method: E900.1 Sample 10: MB-GA-0475 Gross Alpha minus Rn & U 3 Method Blank Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MDC Sample 10: LCS-GA-0475 Gross Alpha minus Rn & U Sample 10: C11090162-0011MS Gross Alpha minus Rn & U Sample 10: C11090162-0011MSO Gross Alpha minus Rn & U Qualifiers: RL • Analyte reporting limit. MDC -Minimum detectable concentration 0.299 pCi/L 0.268 pCilL 0.370 pCi/L Laboratory Control Sample 20.0 pCilL Sample Matrix Spike 52.2 pCi/L Sample Matrix Spike Duplicate 57.4 pCilL RL %REC Low Limit High limit RPO RPOLlmit Qual Run: BERTHOLD 770·1_110909A Run: BERTHOLD 770·1_110909A 94 70 130 Run: BERTHOLD 770-1 110909A - 97 70 130 Run: BERTHOLD 770-1 110909A -109 70 130 9.5 ND -Not detected at the reporting limit. U -Not detected at minimum detectable concentration Batch: GA·0475 09/15/11 15:47 U 09/15/11 15:47 09/15/11 17:56 09/15/11 17:56 21.6 Page 18 of 20 EN:RGY I,M 'I ~., I 1'1 • www.energyiab.com Alufl1lnl £1UIIIIa Sku 1m Haiena, MT 177-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillatts, WY BB&-B8B-7175 • Rapid City, SD B88-872-1225 • College Siallon, 1X 888-690-2218 Workorder Receipt Checklist Denison Mines USA Corp 111111111111111111111111111111111111111111111111111111I C11090045 Login completed by: Debra Williams Reviewed by: BL2000\cwagner Reviewed Date: 9/6/2011 Shipping container/cooler in good condition? Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Chain of custody present? Chain of custody signed when relinquished and received? Chain of custody agrees with sample labels? Samples in proper container/boUle? Sample containers intact? Sufficient sample volume for indicated test? All samples received within holding time? (Exclude analyses that are considered field parameters such as pH, DO, Res CI, Sulfite, Ferrous Iron, etc.) ContainerfTemp Blank temperature: Water -VOA vials have zero headspace? Water -pH acceptable upon receipt? Contact and Corrective Action Comments: None Yes [{1 Yes [{1 Yes 0 Yes [{1 Yes [{1 Yes [{1 Yes [{1 Yes [{1 Yes [{1 Yes [{1 2.3'C On Ice Yes 0 Yes [{1 Date Received: 9/1/2011 Received by: kg Carrier FedEx name: No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 Not Present 0 Not Present 0 Not Present [{1 No VOA vials submitted [{1 Not Applicable 0 Page 19 of 20 Chain of Custody and Analytical Request Record pageLOfL _'flU ,W'PJiI'i_P#IJ' PLEASE PRINT (Provide as much information as possible.) Company Name: ~~.lj\fJ~d1J1/~< proj~ame. PWS, Permit, Etc. I Sample Origin ,,3 I1tM.lf rt. !'rRID1~ State: vt/ EPA/State Compliance: Yes.Jil No 0 RePOrt Mall A?u0S: a ~ ~tJ q JS~J1j,~ fAr ~LI '} I / Conrme:(} _. Phone/Fax: / iitfUL u/~ __ b1:r-tz.z".L Email: Sampler: (Please Print) ~A~/j/j.4_ Invoice Address: ,..---J Sa ~ Invoife Contact & Phone: Special Report/Formats: ~ ~&I1 W@D@ ~~@(lD~W[Q) D DW o POTWf\NWTP o State: o Other:---- o EDD/EDT(Electronic Data) Format:, ___ _ o LEVEL IV o NELAC a ~ "'O",~ ~al;gOI Ci> ._> 0 >.(;5 ~(/)~~$: O$:= til 0> ~o<l:~lg~ ° .... U-II <= ~HI~~ ~ ~ 0).: ii) $: ~a.o<l:l~O J ~ ~ >1 '( (/) .... ~ ~--S-AM--P-lE--ID-E-N-T-IF-IC-A-T-IO-N--~------~r-------r-----~, ~ It'Jame. Location. Inte_rval, etc.) "';;;: 'mw.-14 I g·?O ·/1 11.?3D 12 -w I xl xix 2mIAJ '_~2 /K10 /I In a£' 1 /-1AJ I x iX 31l1lAf -& ~ , "'·30 -II I fill) I ) ~ IrJ I X I X 4/hW. 2~ I q ·Ja.f / IMt{S' I/-w I'X lx 5 1YJN , s,~ 1~,?o'lI I) ~35' I J-~ lx Ix _intv -Zh If(' JtJ -// II n(} I J -vV_ I X lX 7 8 9 Purchase Order: Quote/Bottle Ord~ .. o ~ I R w .- I ;- () c; « ~ I U I-m l-E « ::J W ~ I 5 w .... til (J) -g ro U5 I H Contact ELI prior to RUSH sample submittal for charges and scheduling -See Instruction Page Comments: ~YcSS A0ha., 1f!/t11r/:', $ N~TTJ(~ ~;"ul l~ ~h. e/bLiO -SliIpptKltiy: a-$xJ} Cooler 10(s): c..L "Cn) ReceiptTemp 8/~ J:.. ;). 3 °c Cnlee: @N Custody Seal On Bottle Y N On Cooler (!) N Intact Signature Match ~ ~ ~ nn n ~ <:::;, ~ tgS lO) tl===> I~ ~ 'B @N 8N "U • 10 ~-IId1CV~\ III ! ICUstodY ~ I Rf!Ql1ved by (print): a Record [ -ReCeived by (pilfll): 0 nal ; .~ MUSTbe a Signed SaflllllilDlsQ9Sal: Return to Client: ------Lab Disposal: I ~~vadlLa::,o~ Daiemme: S(gnafure' DatnlTime: Signature· -u8telTTme: 7-1-1/ q, J() lSlgnalUfll: In certain circumstances. samples submitted to Energy Laboratories, Inc. may be subcontracted to other certified laboratories in order to complete the analysis requested. This serves as notice of this possibility. All sub-contract data witt be clearly notated on your analytical report. Visit our web site at www.energylab.com for additional information, downloadable fee schedule, forms, and links. EI\ERGY /\-!.lFI ~r :'..J~11 '_, www.energylab.com AM/ftiI2I EmIMnu ShIU 1fS.Z Halena, MT 877-412-0111 • Billings, MT 800-135-4489 • Casper, WY 881-235-0515 Gillette, WV 818-18&-7175 • Rapid City, SD 888-&72-1225 • College Station, 1X 888-&90-2218 October 04, 2011 Denison Mines USA Corp 6425 S Hwy 191 Blanding, UT 84511 Workorder No.: C11090914 ANAL VTICAL SUMMARY REPORT Quote ID: C1640 -POC Wells Project Name: 3rd Quarter Groundwater 2011 Energy Laboratories, Inc. Casper WY received the following 3 samples for Denison Mines USA Corp on 9/23/2011 for analysis. Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test C11090914-001 MW-18 09/21/11 15:00 09/23/11 Aqueous Metals by ICP/ICPMS, Dissolved C11090914-002 MW-70 09/21/11 15:00 09/23/11 Aqueous Same As Above C11090914-003 Temp Blank 09/21/11 0:00 09/23/11 Aqueous Temperature The analyses presented in this report were performed at Energy Laboratories, Inc., 2393 Salt Creek Hwy., Casper, WY 82601, unless otherwise noted. Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report, the QNQC Summary Report, or the Case Narrative. The results as reported relate only to the item(s) submitted for testing. All samples are reported on an as received basis unless otherwise indicated. If you have any questions regarding these test results, please call. Report Approved By: c3¥~ £) uJtJ.~ Reporting Supervisor Digitally signed by Stephanie Waldrop Date: 2011.10.04 15:32:29 -06:00 Page 1 of 8 WWN.energy1ab.com AM/tfIaI braIIMa SIRu IIIZ Helena, MT 877-472-0711 • Billings, MT 800-735-4489 · Casper, WY 888-235-D515 GlfIatte WY 8&8·&86·7175 • Ra Id C' so 888·672·1225 • Colle e Station, TX 888·690-221 a CLIENT: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Report Date: 10104/11 Sample Delivery Group: C11090914 CASE NARRATIVE ORIGINAL SAMPLE SUBMITTAL(S) All original sample submittals have been returned with the data package. SAMPLE TEMPERATURE COMPLIANCE: 4"C (±2"C) Temperature of samples received may not be considered properly preserved by accepted standards. Samples that are hand delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun. GROSS ALPHA ANALYSIS Method 900.0 for gross alpha and gross beta is intended as a drinking water method for low TDS waters. Data provided by this method for non potable waters should be viewed as inconsistent. RADON IN AIR ANALYSIS The desired exposure time is 48 hours (2 days). The time delay in returning the canister to the laboratory for processing should be as short as possible to avoid excessive decay. Maximum recommended delay between end of exposure to beginning of counting should not exceed 8 days. SOIL/SOLID SAMPLES All samples reported on an as received basis unless otherwise indicated. ATRAZINE, SIMAZINE AND PCB ANALYSIS Data for PCBs, Atrazine and Simazine are reported from EPA 525.2. PCB data reported by ELI reflects the results for seven individual Aroclors. When the results for all seven are ND (not detected), the sample meets EPA compliance criteria for PCB monitoring. SUBCONTRACTING ANALYSIS Subcontracting of sample analyses to an outside laboratory may be required. If so, ENERGY LABORATORIES will utilize its branch laboratories or qualified contract laboratories for this service. Any such laboratories will be indicated within the Laboratory Analytical Report. BRANCH LABORATORY LOCATIONS eli-b -Energy Laboratories, Inc. -Billings, MT eli-g -Energy Laboratories, Inc. -Gillette, WY eli-h -Energy Laboratories, Inc. -Helena, MT eli-r -Energy Laboratories, Inc. -Rapid City, SD eli-t -Energy Laboratories, Inc. -College Station, TX CERTIFICATIONS: USEPA: WY00002, Radiochemical WY00937; FL-DOH NELAC: E87641, Radiochemical E871 017; California: 02118CA; Oregon: WY200001; Utah: 3072350515; Virginia: 00057; Washington: C1903 ISO 17025 DISCLAIMER: The results of this Analytical Report relate only to the items submitted for analysis. ENERGY LABORATORIES, INC. -CASPER,WY certifies that certain method selections contained in this report meet requirements as set forth by the above accrediting authorities. Some results requested by the client may not be covered under these certifications. All analysis data to be submitted for regulatory enforcement should be certified in the sample state of origin. Please verify ELI's certification coverage by visiting www.energylab.com ELI appreciates the opportunity to provide you with this analytical service. For additional information and services visit our web page www.energylab.com. Page 2 of 8 EI\ERGY 1\-\(11-1/1 10141 '. www.energylab.com AM/ffia/ E-n.-SIDa UBI Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, 'NY 888-235-0515 Gillatta, WY 81&-18&-7175 . Rapid City, SD 888-&72-1225 • College Station, IX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: E200.8 Sample 10: LRB Thallium Sample 10: LFB Thallium Sample 10: C11090914-002AMS4 Thallium Sample 10: C11090914-002AMSO Thallium Method: E200.8 Sample 10: LRB Thallium Sample 10: LFB Thallium Sample 10: C11090790-005BMS4 Thallium Sample 10: C11090790-005BMSO Thallium Qualifiers: RL -Analyte reporting limit. Method Blank NO mg/L Laboratory Fortified Blank 0.0448 mg/L Sample Matrix Spike 0.0530 mg/L Sample Matrix Spike Duplicate 0.0571 mg/L Method Blank NO mg/L Laboratory Fortified Blank 0.0499 mg/L Sample Matrix Spike 0.0478 mg/L Sample Matrix Spike Duplicate 0.0458 mg/L Report Date: 10/04/11 Work Order: C11090914 RL %REC Low Limit High Limit Run: ICPMS2-C_11 0926B 0.00050 Run: ICPMS2-C_110926B 0.0010 90 85 115 Run: ICPMS2-C_11 0926B 0.0010 99 70 130 Run: ICPMS2-C_11 0926B 0.0010 107 70 130 Run: ICPMS4-C_11 0929C 0.00050 Run: ICPMS4-C_11 0929C 0.0010 100 85 115 Run: ICPMS4-C_11 0929C 0.0010 96 70 130 Run: ICPMS4-C_110929C 0.0010 92 70 130 NO -Not detected at the reporting limit. RPO RPOLimit Qual 7.3 4.2 Batch: R151127 09/26/11 20:16 09/26/11 20:19 09/27/11 07:50 09/27/11 07:53 20 Batch: R151331A 09/29/11 16 :45 09/29/11 16 :50 09/30/11 11 :05 09/30/11 11:10 20 Page 6 of 8 EN:RGY l\_j(lL./'l1 <ill < www.energylab.com AMITtIaI~S/nU 1m Helena, MTB77-472-0711 • Billings, MT 800-735-4489 · Casper, WV 888-235-0515 Gillette, WV 816-881-7175 · Rapid City, so 888-&72-1225 · Collage Station, TX 888-690-2218 Workorder Receipt Checklist Denison Mines USA Corp 11111111111111111111111111111111 11111 ~IIIIIIIIIIIIIIII C11090914 Login completed by: Edith McPike Reviewed by: BL2000\kschroeder Reviewed Date: 9/26/2011 Shipping container/cooler in good condition? Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Chain of custody present? Chain of custody signed when relinquished and received? Chain of custody agrees with sample laibels? Samples in proper container/bottle? Sample containers intact? Sufficient sample volume for indicated test? All samples received within holding time? (Exclude analyses that are considered field parameters such as pH, DO, Res CI, Sulfite, Ferrous Iron, etc.) ContainerfTemp Blank temperature: Water -VOA vials have zero headspace? Water -pH acceptaible upon receipt? Contact and Corrective Action Comments: None Yes III Yes III Yes 0 Yes III Yes III Yes III Yes III Yes III Yes III Yes III 2.4 "C On Ice Yes 0 Yes III Date Received: 9/23/2011 Received by: kg Carrier NDA name: No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 Not Present 0 Not Present 0 Not Present III No VOA vials submitted III Not Applicaible 0 Page 7 of 8 Chain of Custody and Analytical Request Record LARORATOR/{ S Compa~t.:! .. mTle: • 1111 ' 1 ~Ilq,\) 'f/(Jorej Report Mail Ad'ft;S: rror D-{}-~ fAJ4M;V1 ./!\ IILI Invoice Address:" .:.J -~r.:l'-'" ~4s-/L PLEASE PRINT (Pro",jde as much Information as~ssible.) proieclame, PWS, Permit, Etc, 1 Sample Origin II' s.r;:lr1.LlV' L~AU1.e( 1Jf./~ State: /AI Contact Name: -Phone!Fax: Email: M6t ",,;1ty.{rL ~ ttf ezzL InvoicelContact & Phone: I Purchase Order: ~w--t Page ---L-of J- EPNState Compliance: Yes w-No D Sampler: (Please Print) ~~jj~. Quote/Bottle Ord~ ..L\.~ Special Report/Formats: Dow o EDO/EOT(Electronic Data) ~ o .... ~o"'~ c:: 1ll"O~' .... ._>=UI(l) !9 0 >0-cCl)~ ~~ 8~'8 ~ C> ~o<U)~2 .S ~\1@D@ m@QD~'iJ@J]) .. o ~I R w !::.. I "0 Contact ELI prior to RUSH sample submittal for charges and scheduling -See Instruction Page I SW~p'd by: nJJ...- .}(!5 ll€S-NVJII COOler ID{S): ~ ( j'p.-rtf D POTWfWWTP Format:. ___ _ o State: D LEVEL IV ...... Illl~ ~~~§-c:: "E~Ii6~ o Other:----D NELAC ~ (l).!::1U3: 2 SAMPLE IDENTIFICATION (Name, Location, Interval, etc.) fYjlA ) I K 11101 7-0 3~ M1'l J...1Ih,1' 4 r 5 6 7 e 9 10 Collection Dale Collection Time 111'111· II I L ~,()f, Zo..«IOlO !ij ~I CI) MATRIX /-/,v iIflLI·// 11£. (.C 1 J ' w i.. .1J.b..l {rj}YJ.ItHM.' ~D v I· U'~ r Custody /J Jl) ~ ~ I U ~ l-e: « 5 W ~ I S W III CIJ "0 ~ e: to en I H Comments: X X RecelYCd by (pri,",): DaleFrtme: ~tl(;elptfamp rJ .. !l °c On Ice: ~N Custody Seal On 80lUe Y N OnCoaler r7 Intact Y N Signature Y N Match . ~. ~ ~. ~ ~ ~ (6) Ii=:: ~ ~ Q @' IGii WdU&" Signature: Record R<3CB by (print); DalefTlme; Signature; MUST be . r--------------------------------------------------------r~~~~~v~~y~~~~~~:~----~~~~----~q~------~~~~ur~e:-------------. Signed Sal11QlE! plsposal: Return to Client: _Lab Disposal: ; ').. () Ifn"<f)'~ 5n::... I In certain circumstances. samples submitted to Energy Laboratories. Inc. may be subcontracted to other certified laboratories in order to complete the analysis requested. This serves as notice of this possibility. All sub·contr8f;t data will be clearly notated on your analytical report. VISit our web site at www.energylab.com for additlonsl information, downloadable fee schedule, forms, and links. EN:RGY L .H l_ 1'1" I '): 'It.·~ October 06, 2011 Denison Mines USA Corp 6425 S Hwy 191 Blanding, UT 84511 www.energylab.com AM/fIIaI ~ SIJIcs 11152 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 GiIIBHB, WY 856-186-7175 . Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 ANAL VTICAL SUMMARY REPORT Workorder No.: C 11 080269 Quote ID: C1640 -POC Wells Project Name: 3rd Quarter Groundwater 2011 Energy Laboratories, Inc. Casper WY received the following 11 samples for Denison Mines USA Corp on 8/5/2011 for analysis. Sample ID Client Sample ID Col/ect Date Receive Date Matrix Test C11080269-001 MW-24 08/04/11 7:45 08/05/11 C11080269-003 MW-11 08/03/11 10:25 08/05/11 C11080269-004 MW-14 08/03/11 13:3508/05/11 C11080269-005 MW-25 08/03/11 10:45 08/05/11 C11080269-006 MW-26 08/03/11 8:35 08/05/11 C11080269-007 MW-30 08/03/11 14:45 08/05/11 Aqueous Metals by ICP/ICPMS, Dissolved Aqueous Metals by ICP/ICPMS, Dissolved Alkalinity QA Calculations Chloride Fluoride Nitrogen, Ammonia Nitrogen, Nitrate + Nitrite pH Gross Alpha minus Rn222 and Uranium Solids, Total Dissolved Sulfate SW8260B VOCs, Standard List Aqueous Alkalinity QA Calculations Chloride Fluoride pH Solids, Total Dissolved Sulfate SW8260B VOCs, Standard List Aqueous Alkalinity QA Calculations Chloride Fluoride Nitrogen, Ammonia Nitrogen, Nitrate + Nitrite pH Solids, Total Dissolved Sulfate SW8260B VOCs, Standard List Aqueous Same As Above Aqueous Metals by ICP/ICPMS, Dissolved Alkalinity QA Calculations Chloride Fluoride Nitrogen, Ammonia Nitrogen, Nitrate + Nitrite pH Gross Alpha minus Rn222 and Uranium Solids, Total Dissolved Sulfate SW8260B VOCs, Standard List Page 1 of 35 E"-ERGY ! '''bon A I ")..--I~ ~ C 11 080269-008 MW -31 C11080269-009 MW-35 C11 080269-01 0 MW-65 www.energyleb.com AMIfIJaI rn:.n-. SIRu IIJU Halena, MT 877-472-0711 • Billings, MY 800-735-4489 • Casper, WY 881-235-0515 Gillette, WY 816-186-7175 • Rapid City, SD 888-672-1225 • College Station, lX 888-690-2218 ANAL VTICAL SUMMARY REPORT 08/02/11 14:00 08/05/11 08/02/11 14:30 08/05/11 08/03/11 8:35 08/05/11 Aqueous Same As Above Aqueous Alkalinity QA Calculations Chloride Fluoride Nitrogen, Ammonia Nitrogen, Nitrate + Nitrite pH Solids, Total Dissolved Sulfate SW8260B VQCs, Standard List Aqueous Same As Above C11080269-011 Trip Blank 6092 08/03/11 0:00 08/05/11 Aqueous SW8260B VQCs, Standard List C11080269-012 Temp Blank 08/05/11 Aqueous Temperature The analyses presented in this report were performed at Energy Laboratories, Inc., 2393 Salt Creek Hwy., Casper, WY 82601, unless otherwise noted. Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report, the QA/QC Summary Report, or the Case Narrative. The results as reported relate only to the item(s) submitted for testing . All samples are reported on an as received basis unless otherwise indicated. If you have any questions regarding these test results, please call. Report Approved By: c3t.?~ D uJtJ.~ Reporting Supervisor Digitally signed by Stephanie Waldrop Date: 2011.10.0711:51:13-06:00 Page 2 of 35 l'tWW.energytab.CDm AMIftIaI Exe.1IInu SWu ,ftZ Helena, MT 877-472-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515 Gillette WY 866-686-1175 • Ra id Cl so 888-672-1225 • Colle e Station IX 888-690-2218 CLIENT: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Sample Delivery Group: C11080269 REVISED/SUPPLEMENTAL REPORT (2) Revised Date: 10/06/11 Report Date: 09/01/11 CASE NARRATIVE The attached analytical report has been revised from a previously submitted report due to the request by Kathy Weinel on October 6, 2011 to not report the following analytes due to unacceptable pH levels at the time of sample receipt: Gross Alpha on MW-32, MW-14, MW-65, MW-25, MW-35, MW-26; Dissolved Metals on MW-14, MW-65, MW-25, MW-35, MW-26; Nitrate and Ammonia on MW -14. REVISED/SUPPLEMENTAL REPORT (1) The attached analytical report has been revised from a previously submitted report due to the request by Kathy Weinel on September 9, 2011 to correct the Vanadium report limit in the Method Blank. ORIGINAL SAMPLE SUBMITTAL(S) All original sample submittals have been returned with the data package. SAMPLE TEMPERATURE COMPLIANCE: 4"C (±2"C) Temperature of samples received may not be considered properly preserved by accepted standards. Samples that are hand delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun. GROSS ALPHA ANALYSIS Method 900.0 for gross alpha and gross beta is intended as a drinking water method for low TDS waters. Data provided by this method for non potable waters should be viewed as inconsistent. RADON IN AIR ANALYSIS The desired exposure time is 48 hours (2 days). The time delay in returning the canister to the laboratory for processing should be as short as possible to avoid excessive decay. Maximum recommended delay between end of exposure to beginning of counting should not exceed 8 days. SOIUSOLID SAMPLES All samples reported on an as received basis unless otherwise indicated. ATRAZINE, SIMAZINE AND PCB ANALYSIS Data for PCBs, Atrazine and Simazine are reported from EPA 525.2. PCB data reported by ELI reflects the results for seven individual Aroclors. When the results for all seven are ND (not detected), the sample meets EPA compliance criteria for PCB monitoring. SUBCONTRACTING ANALYSIS Subcontracting of sample analyses to an outside laboratory may be required. If so, ENERGY LABORATORIES will utilize its branch laboratories or qualified contract laboratories for this service. Any such laboratories will be indicated within the Laboratory Analytical Report. BRANCH LABORATORY LOCATIONS eli-b -Energy Laboratories, Inc. -Billings, MT eli-g -Energy Laboratories, Inc. -Gillette, WY eli-h -Energy Laboratories, Inc. -Helena, MT eli-r -Energy Laboratories, Inc. -Rapid City, SD eli-t -Energy Laboratories, Inc. -College Station, TX CERTIFICATIONS: USEPA: WY00002, Radiochemical WY00937; FL-DOH NELAC: E87641, Radiochemical E871 017; California: 02118CA; Oregon: WY200001; Utah: 3072350515; Virginia: 00057; Washington: C1903 ISO 17025 DISCLAIMER: The results of this Analytical Report relate only to the items submitted for analysis. ENERGY LABORATORIES, INC. -CASPER,WY certifies that certain method selections contained in this report meet requirements as set forth by the above accrediting authorities. Some results requested by the client may not be covered under these certifications. All analysis data to be submitted for regulatory enforcement should be certified in the sample state of origin. Please verify ELI's certification coverage by visiting www.energylab.com ELI appreciates the opportunity to provide you with this analytical service. For additional information and services visit our web page www.energylab.com. Page 3 of 35 EN:RGY '_/\':;-,(lP ',1 ')Hlr So www.energylab.com ~/Exc.n.-SInu '152 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, wy 866-686-7175 • Rapid City, SO 888-&12-1225 • College Station, TX 888-690-2218 QA/Qe Summary Report Prepared by Casper, WY Branch Revised Date: 10/06/11 Report Date: 09/01/11 Work Order: Cll080269 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: A2320 B Sample 10: MBLK 3 Method Blank Alkalinity, Total as CaC03 ND mg/L Carbonate as C03 ND mg/L Bicarbonate as HC03 2.46 mg/L Sample 10: LCS Laboratory Control Sample Alkalinity, Total as CaC03 199 mg/L Sample 10: C11080269-008AOUP 3 Sample Duplicate Alkalinity, Total as CaC03 164 mg/L Carbonate as C03 ND mg/L Bicarbonate as HC03 200 mg/L Sample 10: C11080269-008AMS Sample Matrix Spike Alkalinity, Total as CaC03 286 mg/L Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration RL %REC Low Limit High Limit RPO RPOLlmlt Qual Batch: R149013 Run: MANTECH_11080SA 08/0S/11 08 :06 S.O 1.0 1.0 Run: MANTECH_ll080SA 08/0S/11 08:22 S.O 99 90 110 Run: MANTECH_ll080SA 08/0S/11 19 :48 S.O 0.8 10 S.O 10 S.O 0.8 10 Run: MANTECH_ll 080SA 08/0S/11 19:56 S.O 98 80 120 ND -Not detected at the reporting limit. Page 18 of 35 EN:RGY _ l-" ~ [i'}\ I ilL. www.energylab.com ~/Ex"",-SIr!u /951 Helena, lIT 877-412-0111 • Billings, lIT 800-735-4489 • Casper, WY 888-235-0515 Gilletto, WY 818-686-7175 • Rapid City, SO 888-672-1225 • College Station, IX 888-&90-2218 QA/QC Summary Report Prepared by Casper, WY Branch Revised Date: 10/06/11 Report Date: 09/01/11 Work Order: C11080269 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: A2540 C Sample 10: C11080269-o06AOUP Sample Duplicate Solids, Total Dissolved TDS @ 180 C 3200 mg/L Sample 10: C11080274-005BMS Sample Matrix Spike Solids, Total Dissolved TDS @ 180 C 3570 mg/L Sample 10: LCS2_ Laboratory Control Sample Solids, Total Dissolved TDS @ 180 C 1030 mg/L Sample 10: MBLK2_ Method Blank Solids, Total Dissolved TDS @ 180 C ND mg/L Method: A2540 C Sample 10: MBLK1_ Method Blank Solids, Total Dissolved TDS @ 180 C ND mg/L Sample 10: LCS1_ Laboratory Control Sample Solids, Total Dissolved TDS @ 180 C 1100 mg/L Sample 10: C11080358-o02AOUP Sample Duplicate Solids, Total Dissolved TDS @ 180 C 412 mg/L Sample 10: C11080389-o01BMS Sample Matrix Spike Solids, Total Dissolved TDS @ 180 C 2430 mg/L Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration RL %REC Low Limit High Limit RPO RPOLimit Qual Batch: R149109 Run: BAL-1 _110805C 08/05/11 17 :23 10 0.4 10 Run: BAL-1 _110805C 08/05/11 17:27 10 104 90 110 Run: BAL-1 110805C 08/05/11 17:27 - 10 103 90 110 Run: BAL-1 110805C 08/05/11 17:28 - 10 Batch: R149222 Run: BAL-1_110809B 08/09/11 16 :03 10 Run: BAL-1_110809B 08/09/11 16:03 10 110 90 110 Run: BAL-1 _110809B 08/09/11 16 :07 10 0.1 10 Run: BAL-1_1108098 08/09/11 16 :09 10 101 90 110 ND -Not detected at the reporting limit. Page 19 of 35 EI\ERGY L,\EJ I '",I _,'-1_ '- www.energylab.com AM/fIbI &r.1IHa stnu 1m Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, 'NY 888-235-0515 Gil/etta, WY 866-686-7175 • Rapid City, SO 888-672-1225 • Col/ege Station, TX 888-690-2218 QA/Qe Summary Report Prepared by Casper, WY Branch Revised Date: 10/06/11 Report Date: 09/01/11 Work Order: C11080269 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: A4500-CI B Sample 10: MBLK9-S/10/2011 Method Blank Chloride ND mg/L Sample 10: C110S01SS-G01AMS Sample Matrix Spike Chloride 45.9 mg/L Sample 10: C110S0188-G01AMSO Sample Matrix Spike Duplicate Chloride 45.9 mg/L Sample 10: LCS35-8/10/2011 Laboratory Control Sample Chloride 3530 mg/L Method: A4500-CI B Sample 10: MBLK9-11/0S/22 Method Blank Chloride ND mg/L Sample 10: C110S0415-G01AMS Sample Matrix Spike Chloride 81.1 mg/L Sample 10: C110S0415-G01AMSO Sample Matrix Spike Duplicate Chloride 81.1 mg/L Sample 10: LCS35-11/0S/22 Laboratory Control Sample Chloride 3560 mg/L Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration RL %REC Low Limit High limit RPO RPOLlmlt Qual Batch: 8/10/2011-CL-TTR-W Run: TITRATION_110810A 08/10/11 11 :52 1.0 Run: TITRATION_110B10A OB/10/11 12:51 1.0 102 90 110 Run: TITRATION_110810A 08/10/11 12:52 1.0 102 90 110 0.0 10 Run: TITRATION_110B10A 08/10/11 12:55 1.0 100 90 110 Batch: 11/08/22-CL-TTR-W Run: TITRATION_11 OB22A 08/22/11 11:10 1.0 Run: TITRATION_11 0822A 08/22/11 11 :56 1.0 104 90 110 Run: TITRATION_110822A 08/22/11 11 :58 1.0 104 90 110 0.0 10 Run: TITRATION_11 OB22A 08/22/11 12:35 1.0 100 90 110 ND -Not detected at the reporting limit. Page 20 of 35 EI\ERGY L ,\PU I~I',I ':r-d L-:.. W'M'I.energylab.com AIII/ftfeM Exc.lJMlcl stnu 7952 Helena, MT 871-472-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-1515 Gillette, WY 8&6-686-1175 • Rapid City, SD 888-612-1225 • College Station, TX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Revised Date: 10/06/11 Report Date: 09/01/11 Work Order: C 11080269 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: A4500-F C Sample 10: MBLK Method Blank Fluoride NO mg/L Sample 10: LCS Laboratory Control Sample Fluoride 2.00 mg/L Sample 10: Cl1080269-005AMS Sample Matrix Spike Fluoride 2.12 mg/L Sample 10: C11080269-005AMSO Sample Matrix Spike Duplicate Fluoride 2.08 mg/L Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration RL %REC Low Limit High Limit RPO RPOLlmlt Qual Batch: R149053 Run: MANTECH_ll 0808A 08/08/11 11 :02 0.10 Run: MANTECH_l1 0808A 08/08/11 11 :04 0.10 100 90 110 Run: MANTECH_ll0808A 08/08/11 12:37 0.10 91 80 120 Run: MANTECH_ll 0808A 08/08/11 12:39 0.10 89 80 120 1.9 10 NO -Not detected at the reporting limit. Page 21 of 35 EI\ERGY :.... E! ':-'1 • I' "'1t.:.3 WWN.energylab.com AM/ffIa/~SIIru '151 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 . Casper, WY 888-235-0515 Gillette, WY 81&-&86-7175 • Rapid City, SD 888-&72-1225 • College Station, TX 888-690-2218 QA/QC Summary Report Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Method: A4S00-H B Prepared by Casper, WY Branch Revised Date: 10106/11 Report Date: 09/01/11 Work Order: C11080269 Result Units RL %REC Low Limit High Limit RPO RPOLimlt Qual Sample 10: ICV1_110805_2 pH Initial Calibration Verification Standard Analytical Run: ORION555A_11 0805B 08/05/11 15 :06 Method: A4S00-H B Sample 10: C11080269-007AOUP pH Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration 6.88 s.u. 0.010 100 98 102 Batch: 11 0805_2_PH-W _555A-1 Sample Duplicate Run: ORION555A_110805B 08/05/11 16:31 7.75 s.u. 0.010 2.9 3 NO -Not detected at the reporting limit. Page 22 of 35 EI\ERGY L :\~ .'1</1' RI ...... www.energylab.com ~/r-1IInCIS/nu '1152 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 · Casper, WY 888-235-0515 Gillotte, WY 866-&86-7175 • Rapid City, SO 888-672-1225 • College Station, l1( 888-&90-2218 QA/Qe Summary Report Prepared by Casper, WY Branch Revised Date: 10/06/11 Report Date: 09/01/11 Work Order: C11080269 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: A4S00-NH3 G Sample 10: MBLK-1 Method Blank Nitrogen, Ammonia as N ND mg/L Sample 10: LCS-2 Laboratory Control Sample Nitrogen, Ammonia as N 1.97 mg/L Sample 10: LFB-3 Laboratory Fortified Blank Nitrogen, Ammonia as N 1.88 mg/L Sample 10: C110a0269-0100MS Sample Matrix Spike Nitrogen, Ammonia as N 2.21 mg/L Sample 10: C110a0269-0100MSO Sample Matrix Spike Duplicate Nitrogen, Ammonia as N 2.24 mg/L Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration RL %REC Low Limit High Limit RPO RPOLimit Qual Batch: R149215 Run: TECHNICON_11 0811A 08/11/11 12:59 0.050 Run: TECHNICON_110811A 08/11/1113:01 0.050 99 90 110 Run: TECHNICON_11 0811 A 08/11/11 13:03 0.050 96 80 120 Run: TECHNICON_110811A 08/11/11 14:51 0.050 99 80 120 Run: TECHNICON_110811A 08/11/11 14:53 0.050 101 80 120 1.3 10 ND -Not detected at the reporting limit. Page 23 of 35 EI\ERGY L ~C':~/\, ... ,--!E~ www.energylab.CDm AMlytJa/~smu /151 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 GiIIBth, WY 8&&-186-1175 • Rapid City, SD 888-&72-1225 • College StatiDn, TX 888-690-2218 QA/Qe Summary Report Prepared by Casper, WY Branch Revised Date: 10/06/11 Report Date: 09/01/11 Work Order: C11080269 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: A4S00-S04 E Sample 10: LCS-C110822 Sulfate Sample 10: MBLK-1_110822 Sulfate Sample 10: C11080269-00SAMS Sulfate Sample 10: C11080269-00SAMSO Sulfate Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration Laboratory Control Sample 4930 mg/L Method Blank ND mg/L Sample Matrix Spike 3660 mg/L Sample Matrix Spike Duplicate 3640 mg/L RL O/OREC Low limit High Limit RPO RPDLimit Qual Batch: 110B22_1_S04-TURB-W Run: TURB-2_11 OB22A OB/22/11 15:23 100 103 90 110 Run: TURB-2_110B22A OB/22111 15:25 10 Run: TURB-2_11 OB22A OB/22/11 15:54 100 104 90 110 Run: TURB-2_110B22A OB/22/11 15 :56 100 103 90 110 0.5 10 ND -Not detected at the reporting limit. Page 24 of 35 EI\ERGY ... ABQP,\T OHIt:;S www.energylab.com AMIrtkM~ $IIa '/152 Hele~a, MT 877-472-0711 • Billings, MT 800-735-4489 · Casper, WY 888-235-0515 Gillette, WY 81&-186-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Revised Date: 10/06/11 Report Date: 09/01/11 Work Order: C11080269 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Method: E200.7 Result Sample 10: MB-110815A 5 Method Blank Calcium ND Iron ND Magnesium ND Potassium ND Sodium ND Units mg/L mg/L mg/L mg/L mg/L Sample 10: LFB-110815A 5 Laboratory Fortified Blank Calcium 48.8 mg/L Iron 0.977 mg/L Magnesium 48.2 mg/L Potassium 44.0 mg/L Sodium 50.3 mg/L Sample 10: C11080157-001CMS2 5 Sample Matrix Spike Calcium 115 mg/L Iron 2.05 mg/L Magnesium 102 mg/L Potassium 92.5 mg/L Sodium 113 mg/L Sample 10: C11080157-001CMSO 5 Sample Matrix Spike Duplicate Calcium 115 mg/L Iron 2.02 mg/L Magnesium 102 mg/L Potassium 93.5 mg/L Sodium 113 mg/L Qualifiers: RL -Analyte reporting limit. MOe -Minimum detectable concentration RL %REC Low limit High Limit RPO RPDLimlt Qual Batch: R149318 Run: ICP2-C_ll 0815A 08/15/11 11 :59 0.50 0.030 0.50 0.50 0.50 Run: ICP2-C_ll0815A 08/15/11 12 :03 0.50 98 85 115 0.030 98 85 115 0.50 96 85 115 0.50 88 85 115 0.50 101 85 115 Run: ICP2-C_ll0815A 08/15/1 1 13:11 1.0 93 70 130 0.030 97 70 130 1.0 94 70 130 1.0 89 70 130 1.0 100 70 130 Run: ICP2-C_l1 0815A 08/15/1113:15 1.0 93 70 130 0.0 20 0.030 96 70 130 1.3 20 1.0 95 70 130 0.4 20 1.0 90 70 130 1.1 20 1.0 100 70 130 0.2 20 NO -Not detected at the reporting limit. Page 25 of 35 EI\ERGY t_,.~-:)i/ I (:rdE. • www.energytab.com AIII/ftkM&~smc. '151 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 86&-686-7175 • Rapid City, SD 888-672-1225 • College Stalion, TX 888-690-2218 QA/Qe Summary Report Prepared by Casper, WY Branch Revised Date: 10106/11 Report Date: 09/01/11 Work Order: Cll080269 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual Method: E200.8 Batch: R149076A Sample 10: LRB 17 Method Blank Run: ICPMS4-C_ll 0808A 08/08/11 13 :43 Arsenic NO mg/L 0.0050 Beryllium NO mg/L 0.00050 Cadmium NO mg/L 0.00050 Chromium NO mg/L 0.020 Cobalt NO mg/L 0.010 Copper NO mg/L 0.010 Lead NO mg/L 0.0010 Manganese NO mg/L 0.010 Mercury NO mg/L 0.00050 Molybdenum NO mg/L 0.010 Nickel NO mg/L 0.020 Selenium NO mg/L 0.0050 Silver NO mg/L 0.010 Thallium NO mg/L 0.00050 Tin NO mg/L 0.10 Uranium NO mg/L 0.00030 Vanadium NO mg/L 0.010 Sample 10: LFB 17 Laboratory Fortified Blank Run: ICPMS4-C_ll 0808A 08/08/11 13 :48 Arsenic 0.0549 mg/L 0.0010 110 85 115 Beryllium 0.0544 mg/L 0.0010 109 85 115 Cadmium 0.0542 mg/L 0.0010 108 85 115 Chromium 0.0548 mg/L 0.0010 110 85 115 Cobalt 0.0536 mg/L 0.0010 107 85 115 Copper 0.0555 mg/L 0.0010 111 85 115 Lead 0.0534 mg/L 0.0010 107 85 115 Manganese 0.0539 mg/L 0.0010 108 85 115 Mercury 0.00546 mg/L 0.0010 107 85 115 Molybdenum 0.0545 mg/L 0.0010 109 85 115 Nickel 0.0553 mg/L 0.0010 111 85 115 Selenium 0.0533 mg/L 0.0010 107 85 115 Silver 0.0214 mg/L 0.0010 107 85 115 Thallium 0.0532 mg/L 0.0010 106 85 115 Tin 0.0546 mg/L 0.0010 109 85 115 Uranium 0.0526 mg/L 0.00030 105 85 115 Vanadium 0.0546 mg/L 0.0010 109 85 115 Sample 10: C11080269-010BMS4 17 Sample Matrix Spike Run: ICPMS4-C_l1 0808A 08/09/11 08:44 Arsenic 0.0525 mg/L 0.0010 104 70 130 Beryllium 0.0433 mg/L 0.010 87 70 130 Cadmium 0.0486 mg/L 0.010 96 70 130 Chromium 0.0483 mg/L 0.0010 97 70 130 Cobalt 0.0588 mg/L 0.010 102 70 130 Copper 0.0479 mg/L 0.010 95 70 130 Lead 0.0529 mg/L 0.050 106 70 130 Qualifiers: RL -Analyte reporting limit. NO -Not detected at the reporting limit. MOC -Minimum detectable concentration Page 26 of 35 EI\ERGY _ 8 .... 11/' I '-IE. www.energylab.CDm AtIMytIu/ EmIlMa smc. 1951 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 · Casper, WY 888-235-0515 Gillotte, WY 866-186-7175 • Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 QA/Qe Summary Report Prepared by Casper, WY Branch Revised Date: 10/06/11 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: E200.8 Sample 10: C11080269-D10BMS4 17 Sample Matrix Spike Manganese 1.16 mg/L Mercury 0.00470 mg/L Molybdenum 0.0552 mg/L Nickel 0.0589 mg/L Selenium 0.0653 mg/L Silver 0.0128 mg/L Thallium 0.0533 mg/L Tin 0.0483 mg/L Uranium 0.118 mg/L Vanadium 0.0496 mg/L Sample 10: C11080269-D10BMSO 17 Sample Matrix Spike Duplicate Arsenic 0.0535 mg/L Beryllium 0.0494 mg/L Cadmium 0.0537 mg/L Chromium 0.0507 mg/L Cobalt 0.0650 mg/L Copper 0.0496 mg/L Lead 0.0579 mg/L Manganese 1.24 mg/L Mercury 0.00500 mg/L Molybdenum 0.0608 mg/L Nickel 0.0579 mg/L Selenium 0.0675 mg/L Silver 0.0142 mg/L Thallium 0.0585 mg/L Tin 0.0552 mg/L Uranium 0.129 mg/L Vanadium 0.0525 mg/L Method: E200.8 Sample 10: LRB Method Blank Zinc ND mg/L Sample 10: LFB Laboratory Fortified Blank Zinc 0.0548 mg/L Sample 10: C11081007-002CMS4 Sample Matrix Spike Zinc 0.0557 mg/L Sample 10: C11081007-002CMSO Sample Matrix Spike Duplicate Zinc 0.0564 mg/L Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. S -Spike recovery outside of advisory limits. Report Date: 09/01/11 Work Order: C11080269 RL %REC Low Limit High limit RPO RPOLimit Qual Batch: R149076A Run: ICPMS4-C_11 0808A 08/09/11 08:44 0.010 70 130 A 0.0010 94 70 130 0.0010 105 70 130 0.050 98 70 130 0.0010 113 70 130 0.010 64 70 130 S 0.0010 106 70 130 0.0010 97 70 130 0.00030 103 70 130 0.0010 99 70 130 Run: ICPMS4-C_110808A 08/09/11 08 :49 0.0010 106 70 130 1.9 20 0.010 99 70 130 13 20 0.010 107 70 130 10.0 20 0.0010 101 70 130 4.9 20 0.010 114 70 130 10.0 20 0.010 99 70 130 3.5 20 0.050 116 70 130 8.9 20 0.010 70 130 6.4 20 A 0.0010 100 70 130 6.2 20 0.0010 116 70 130 9.8 20 0.050 96 70 130 1.7 20 0.0010 117 70 130 3.4 20 0.010 71 70 130 9.7 20 0.0010 116 70 130 9.3 20 0.0010 110 70 130 13 20 0.00030 124 70 130 8.5 20 0.0010 105 70 130 5.6 20 Batch: R150005A Run: ICPMS4-C_11 0830A 08/30/11 12:07 0.010 Run: ICPMS4-C_11 0830A 08/30/11 13:21 0.0010 110 85 115 Run: ICPMS4-C_11 0830A 08/30/11 20 :17 0.010 102 70 130 Run: ICPMS4-C_110830A 08/30/11 20:22 0.010 104 70 130 1.2 20 A -The analyte level was greater than four times the spike level. In accordance with the method % recovery is not calculated. MDC -Minimum detectable concentration Page 27 of 35 EI\ERGY L \81 I " I' -=-d L." www.energylab.com AM/ffial Ex"*,-SInu 1152 Helena, MT 877-472-0711 • Billings, MT 800-735-4488 • Casper, WY 888-235-0515 Gillette, WY 868-186-7175 • Rapid City, SD 888-&72-1225 • College Station, TX 888-690-2218 QA/Qe Summary Report Prepared by Casper, WY Branch Revised Date: 10106/11 Report Date: 09/01/11 Work Order: C11080269 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: E200.8 Sample 10: C11081143-004CMS4 Sample Matrix Spike Zinc 0.0554 mg/L Sample 10: C11081143-004CMSO Sample Matrix Spike Duplicate Zinc 0.0540 mg/L Sample 10: LRB Method Blank Zinc ND mg/L Sample 10: LFB Laboratory Fortified Blank Zinc 0.0575 mg/L Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration RL %REC Low Limit High limit Run: ICPMS4-C_ll0B31A 0.010 110 70 130 Run: ICPMS4-C_ll0B31A 0.010 107 70 130 Run: ICPMS4-C_110831A 0.010 Run: ICPMS4-C_l1 OB31 A 0.0010 113 B5 115 ND -Not detected at Ihe reporting limit. RPO RPDLimit Qual Batch: R150075A OB/31/11 13 :17 OB/31/11 13:21 2.6 20 OB/31/1t 16:20 08/31/11 16:25 Page 28 of 35 EI\ERGY .... "S·_'I· .11.'=<1=-.- www.energylab.CDm AMIftIu/ Ext:dlnu Slnu 1151 Helena, MT 877-472-071 1 • Biliines, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 8&&-&86-7175 • Rapid City, SD 888-&72-1225 • Colleee Station, IX 888-&90-2218 QA/QC Summary Report Prepared by Casper, WY Branch Revised Date: 10/06/11 Report Date: 09/01/11 Work Order: C11080269 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: E353.2 Sample 10: MBLK-1 Method Blank Nitrogen, Nitrate+Nitrite as N ND mg/L Sample 10: LCS-2 Laboratory Control Sample Nitrogen, Nitrate+Nitrite as N 2.55 mg/L Sample 10: LFB-3 Laboratory Fortified Blank Nitrogen, Nitrate+Nitrite as N 1.90 mg/L Sample 10: C11080272'{)01 BMS Sample Matrix Spike Nitrogen, Nitrate+Nitrite as N 2.00 mg/L Sample 10: C11080272'{)01BMSO Sample Matrix Spike Duplicate Nitrogen, Nitrate+Nitrite as N 2.06 mg/L Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration RL %REC Low Limit High Limit RPO RPOLImit Qual Batch: R149052 Run: TECHNICON_ll OBOBA OB/08/11 12:57 0.10 Run: TECHNICON_ll 0808A 08/08/11 13:00 0.10 102 90 110 Run: TECHNICON_ll 0808A 08/08/11 13 :02 0.10 97 90 110 Run: TECHNICON_ll 0808A 08/08/11 13 :30 0.10 102 90 110 Run: TECHNICON_ll 080BA 08/08/11 13:32 0.10 105 90 110 3.0 10 ND • Not detected at the reporting limit. Page 29 of 35 EI\ERGY _,\l ,1 '["::"'1 ' ~'I' r ===--_. ml" www.energylab.com AM~I ru.nwa SI1Ic. list Helena, MT 877-472-0711 • BIllings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 816-686-7175 • Rapid City, SD 888-172-1225 • College Station, 1X 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Revised Date: 10/06/11 Report Date: 09/01/11 Work Order: C11080269 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Method: E900.1 Result Units Sample 10: MB-GA-0463 Gross Alpha minus Rn & U 3 Method Blank Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MDC Sample 10: LCS-GA-0463 Gross Alpha minus Rn & U Sample 10: C11080269'()02AMS Gross Alpha minus Rn & U Sample 10: C11080269'()02AMSO Gross Alpha minus Rn & U 0.444 pCi/L 0.647 0.977 pCi/L pCi/L Laboratory Control Sample 21.8 pCi/L Sample Matrix Spike 38.4 pCi/L Sample Matrix Spike Duplicate 36.7 pCi/L RL %REC Low Limit High Limit RPO RPOLimit Qual Run: BERTHOLD 770-1_110817A Run: BERTHOLD 770-1_110817A 91 70 130 Run: BERTHOLD 770-1 110817A -71 70 130 Run: BERTHOLD 770-1 110817A - 67 70 130 4.4 Batch: GA-0463 08/18/11 11 :33 U 08/18/11 11 :33 08/18/11 13:23 08/18/11 13:23 33.6 S -Spike response is outside of the acceptance range for this analysis. Since the LeS and the RPD for the MS MSD pair are acceptable. the response is considered to be matrix related. The batch is approved. Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. MDC -Minimum detectable concentration S -Spike recovery outside of advisory limits. U -Not detected at minimum detectable concentration Page 30 of 35 EN:RGY _!\t:"10HI\TOHIES www.energyiab.com AtIMfIJaI m.J/wru SInu 11151 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 86&-18&-7175 . Rapid City, SD 888-&72-1225 • College Station, TX 881-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Revised Date: 10/06/11 Client: Denison Mines USA Corp Report Date: 09/01/11 Project: 3rd Quarter Groundwater 2011 Work Order: C11080269 Analyte Count Result Units RL %REC Low limit High Limit RPO RPOLImit Qual Method: SW8260B Batch: R149095 Sample 10: 08081CLCS3 16 Laboratory Control Sample Run: SATURNCA_110BOBA OB/OB/11 14 :23 Acetone 110 ug/L 20 110 70 130 Benzene B.9 ug/L 1.0 B9 70 130 Carbon tetrachloride B.5 ug/L 1.0 B5 70 130 Chloroform B.B ug/L 1.0 BB 70 130 Chloromethane 8.B ug/L 1.0 B8 70 130 m+p-Xylenes 1B ug/L 1.0 BB 70 130 Methyl ethyl ketone 96 ug/L 20 96 70 130 Methylene chloride 9.9 ug/L 1.0 99 70 130 Naphthalene 9.8 ug/L 1.0 98 70 130 o-Xylene 8.8 ug/L 1.0 B8 70 130 Toluene 8.6 ug/L 1.0 B6 70 130 Xylenes, Total 26 ug/L 1.0 88 70 130 Surr: 1,2-0ichlorobenzene-d4 1.0 9B 80 120 Surr: Oibromofluoromethane 1.0 96 70 130 Surr: p-Bromofluorobenzene 1.0 96 80 130 Surr: Toluene-d8 1.0 92 BO 120 Sample 10: OSOS11_MBLK_6 16 Method Blank Run: SATURNCA_l1 0808A OB/08/11 15 :36 Acetone NO ug/L 20 Benzene NO ug/L 1.0 Carbon tetrachloride NO ug/L 1.0 Chloroform NO ug/L 1.0 Chloromethane NO ug/L 1.0 m+p-Xylenes NO ug/L 1.0 Methyl ethyl ketone NO ug/L 20 Methylene chloride NO ug/L 1.0 Naphthalene NO ug/L 1.0 a-Xylene NO ug/L 1.0 Toluene NO ug/L 1.0 Xylenes, Total NO ug/L 1.0 Surr: 1,2-0ichlorobenzene-d4 1.0 96 BO 120 Surr: Oibromofluoromethane 1.0 96 70 130 Surr: p-Bromofluorobenzene 1.0 BB BO 120 Surr: Toluene-dB 1.0 B6 80 120 Sample 10: C11080203-001GMS 16 Sample Matrix Spike Run: SATURNCA_l1080BA 08/0B/11 21 :40 Acetone 2400 ug/L 200 119 70 130 Benzene 190 ug/L 10 96 70 130 Carbon tetrachloride 200 ug/L 10 101 70 130 Chloroform 210 ug/L 10 104 70 130 Chloromethane 200 ug/L 10 102 70 130 m+p-Xylenes 410 ug/L 10 101 70 130 Methyl ethyl ketone 2200 ug/L 200 111 70 130 Methylene chloride 240 ug/L 10 119 70 130 Naphthalene 200 ug/L 10 99 70 130 Qualifiers: RL -Analyte reporting limit. NO -Not detected at the reporting limit. MOC -Minimum detectable concentration Page 31 of 35 EN:RGY 1 ,~:J R',ICtHIL _ www.energylab.com AIIIIyta/ rxun.-SII!u 1952 Hele~a, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, W'f 888-235-0515 Gillette, WY 8&&-&8&-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-&90-2218 QA/QC Summary Report Prepared by Casper, WY Branch Revised Date: 10/06/11 Report Date: 09/01/11 Work Order: C11080269 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Method: SW8260B Result Units Sample 10: C11080203-001GMS 16 Sample Matrix Spike a-Xylene 200 ug/L Toluene 190 ug/L Xylenes, Total 610 ug/L Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Sample 10: C11080203-001GMSO 16 Sample Matrix Spike Duplicate Acetone 2600 ug/L Benzene 190 ug/L Carbon tetrachloride 200 ug/L Chloroform 210 ug/L Chloromethane 210 ug/L m+p-Xylenes 420 ug/L Methyl ethyl ketone 2300 ug/L Methylene chloride 230 ug/L Naphthalene 220 ug/L a-Xylene 200 ug/L Toluene 190 ug/L Xylenes, Total 620 ug/L Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration RL %REC Low Limit High Limit RPO RPOLimit Qual Batch: R149095 Run: SATURNCA_11 0808A 08/08/11 21 :40 10 102 70 130 10 94 70 130 10 102 70 130 1.0 102 80 120 1.0 108 70 130 1.0 95 80 120 1.0 87 80 120 Run: SATURNCA_110808A 08/08/11 22:16 200 129 70 130 10 96 70 130 10 102 70 130 10 105 70 130 10 106 70 130 10 105 70 130 200 114 70 130 10 117 70 130 10 108 70 130 10 102 70 130 10 94 70 130 10 104 70 130 1.0 103 80 120 1.0 106 70 130 1.0 99 80 120 1.0 89 80 120 ND -Not detected at the reporting limit. Page 32 of 35 EN:RGY ~~I 8 _lr-l, I' ; 'IL:" www.energylab.com Aq./ytful EsuJ/tnc, Sine. 1151 Helena, MT 877-472-0711 • BIllings, MT 800-135-4489 • Casper, WV 888-235-D515 Gillette, WY 86&-686-1115 · Rapid City, SD 888-&72-1225 . College station, TX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Revised Date: 10/06/11 Client: Denison Mines USA Corp Report Date: 09/01/11 Project: 3rd Quarter Groundwater 2011 Work Order: C11080269 Analyte Count Result Units RL %REC Low Limit High limit RPO RPOLlmlt Qual Method: SW8260B Batch: R149192 Sample 10: 08101CLCS_4 5 Laboratory Control Sample Run: SATURNCA_l10810B 08/10/11 12:42 Chloroform 9.2 ug/L 1.0 92 70 130 Surr: 1,2-Dichlorobenzene-d4 1.0 99 80 120 Surr: Dibromofluoromethane 1.0 95 70 130 Surr: p-Bromofluorobenzene 1.0 96 80 130 Surr: Toluene-d8 1.0 87 80 120 Sample 10: 081011_MBLK_6 5 Method Blank Run: SATURNCA_ll 081 OB 08/10/11 13:54 Chloroform ND ug/L 1.0 Surr: 1,2-Dichlorobenzene-d4 1.0 98 80 120 Surr: Dibromofluoromethane 1.0 96 70 130 Surr: p-Bromofluorobenzene 1.0 90 80 120 Surr: Toluene-d8 1.0 85 80 120 Sample 10: C11080188-001PMS 5 Sample Matrix Spike Run: SATURNCA_ll0810B 08/10/11 19:57 Chloroform 230 ug/L 10 116 70 130 Surr: 1,2-Dichlorobenzene-d4 1.0 108 80 120 Surr: Dibromofluoromethane 1.0 112 70 130 Surr: p-Bromofluorobenzene 1.0 104 80 120 Surr: Toluene-d8 1.0 88 80 120 Sample 10: C11080188-001PMSO 5 Sample Matrix Spike Duplicate Run: SATURNCA_ 110810B 08/10/11 20:34 Chloroform 240 ug/L 10 118 70 130 2.4 20 Surr: 1,2-Dichlorobenzene-d4 1.0 110 80 120 0.0 10 Surr: Dibromofluoromethane 1.0 116 70 130 0.0 10 Surr: p-Bromofluorobenzene 1.0 102 80 120 0.0 10 Surr: Toluene-d8 1.0 85 80 120 0.0 10 Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. MDC -Minimum detectable concentration Page 33 of 35 EI\ERGY L ,HOH ,I (,)HIl.'...i ~-www.energylab.com ~ AMIyrIeM~~ IIJZ Helena, MT 877-472-0711 • Billings, MT 800·735-4489 • Caspar, WY 888·235·0515 Gillette, WY 866·686·7175 · Rapid CIiy, SO 888·&72·1225 • College Station, TX 888·&90·2218 Workorder Receipt Checklist Denison Mines USA Corp I ~1I111111111111 ~I~ III~ III~ 1111111111111111111111 C110B0269 Login completed by: Edith McPike Reviewed by: BL2000\kschroeder Reviewed Date: 8/9/2011 Shipping container/cooler in good condition? Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Chain of custody present? Chain of custody Signed when relinquished and received? Chain of custody agrees with sample labels? Samples in proper containerlbottle? Sample containers intact? Sufficient sample volume for indicated test? All samples received within holding time? ContainerfTemp Blank temperature: Water -VOA vials have zero headspace? Water -pH acceptable upon receipt? Yes 0" Yes 0" Yes 0 Yes 0" Yes 0" Yes 0" Yes 0" Yes 0" Yes 0" Yes 0" 4.2'C On Ice Yes 0" Yes 0 Date Received: 8/5/2011 Received by: jba Carrier FedEx name: No 0 No 0 No 0 No 0 No 0 NoO NoO No 0 No 0 NoO No 0 Naill Not Present 0 Not Present 0 Not Present 0" No VOA vials submitted 0 Not Applicable 0 -" -------,------------,-,------------------_._----------------... -----------_._----------------_._--- Contact and Corrective Action Comments: Sample MW-14 for nitrate and ammonia was received with a pH of 5; 1 mL of H2S04 was added to sample in the laboratory for a final pH of <2. Samples MW-32, MW·14, MW-65, MW-25, MW-35, for gross alpha and dissolved metals was received with a pH of 5; 2 mL of HN03 was added to samples in the laboratory for a final pH of <2. Sample MW-26 for gross alpha and dissolved metals was received with a pH of 4; 1 mL of HN03 was added to sample in the laboratory for a final pH 01<2. Page 34 of 35 Chain of Custody and Analytical Request Record 'ftm(f07 • .at'@?IU,'/I' Company Name: D~n~£.of\ M~f\es Report Mail Address: PO BO')t ~O~ 51~l\J:lr,-u \}..T M511 Invoice Addres~ SG\flle PLEASE PRINT (Provide as much information as possible.) Project Name, PWS, Pennit, Etc. I Sample Origin 31"J Qv..o..rte.C G-roVJ1d W~+er ;;"0 If State: \$I Contact Name: Phone/Fax: RjM P6..)me,r Q3S '7$ :2.2..2 \ Invoice Contact & Phone: -s't\fYlC Email: Purchase Order: Page_1_of~ EPA/State Compliance: Yes ff No 0 Sampler: (Please Print) -';'Mer H"J);JlAt Quote/Bottle Order: -v ~ '1@O@ [;a~®QDrn®1f~® Special Report/Formats: !: ., Contact ELI prior to ShIpped by: RUSH sample submittal rcdfK~! DDW D POTWfWWTP D State: D Other:---- o EDD/EDT(Electronic Data) Format:. ___ _ o LEVEL IV o NELAC a .... lCO",~ :gco;gOI iu 'Bi>S >-rti c(l)-;;,l.lJ3: 8~'8 ~ g' _«(1)1·-.-o .... COIt§ ,-W~c ·t:: ~~I~~ ~~«Ig,~ E >1 ~ o .:f 1t-<t ../ ~ SAMPLE IDENTIFICATION . ~ jName, Location, Interval. etc.) ........ MW-24 liJ4hl 01LlT:\ J-W '{I'" 2 Mw·~ l-W 'i ~LUll _130..5 3 /'-\w-J J b-W 'f. !!hblli JO~ 4 Mw-I,", .13305 (., -'vJ t ltJ3/Jl 5 Mw-:l5 1 ~/3111 J()~ b-W y. 6 J.J. 'W -;:u;". 1&/3/11 o~35 6-W x 7 JJ\W..-30 1 ~3/1l \4~ b-W ~ 8 )AI-oJ -3\ !ft,/~Il \'-\00 b.-W lX 9 MW-~S !)sI.lIil IY3() £-w x 10 M~b.S .. _ !~h:JlI l Og3S Ib-W IX Custody I RelinquishOO by (pmt~ DatelTlme' S.gniilure; t-r ... M.' ll..Jl;J..,...,. (i.I~)H IDCL .:::J~ JlJIfL/\ 0 I=" < w t.. I "0 () e :l <.( e I-III l-e .... <.( :l r- W 'E W ro en "0 e j!! en ReceiVild by (pnntl' ReceiVed by (print): R for charges and I scheduling -See Instruction Page U I Comments: 5 /\ {', '? v.. b,;g.. H I ~ \oJ. 2J.~ 'yf' !JtJf2 ~/ A///a:c; Cooler IDrs): :3 DC On Ice: roN Custody s.al~~ OnBollJe N On Cooler N Intact N Signature 0, Match <-.!/" ~ ~ ~. ~ ."'§. ~ ~ (9i ~ ~ Q. aYJj@fcbq6<J. f::! OatelTime: --, ._.. --Signafure: Oale:rrrme: Signatura: Record ·ReGnqiiisnoo"bY (p1fnljiJ OateITrne:·~ ·--~--::JSig.natwe: MUSTber-----------------------------__ ~~~~--~~~------~=c~----~ S. eel a ;me. no ute; Ign SamPle DiSposal: RelUrn toClient:_ __ _ Lab Disposal: __ q_·S __ 11 !t./O In certain circumstances. samples submitted to Energy Laboratories. Inc. may be sUbcontract~ to other certified laboratories in order to complete the analysis requested. This serves as notice of this possibility. All sub-contract data will be clearly notated on your analytical report. VBit our web site at www.energy!ab.com for additional information. downloadable fee schedule. forms. and links. www.energytab.com EN:RGY I' -111 .,,1 )1;1 , __ /f.R:dlllaSiu'1IZ Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 881-235-1515 Gillette, WY 811-186-7175 • Rapid City, SD 888-&72-1225 • College Station, TX 881-&90-2218 ANAL VTICAL SUMMARY REPORT September 14, 2011 Denison Mines USA Corp 6425 S Hwy 191 Blanding, UT 84511 Workorder No.: C 11 080529 Quote 10: C1640 -POC Wells Project Name: 3rd Quarter Groundwater 2011 Energy Laboratories, Inc. Casper WY received the following 14 samples for Denison Mines USA Corp on 8/12/2011 for analysis. Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test C11080529-001 MW-2 08/08/11 13:30 08/12/11 C11080529-002 MW-3 08/10/11 9:50 08/12/11 C11080529-003 MW-3A 08/11/11 7:35 08/12/11 C11080529-004 MW-5 08/09/11 11 :05 08/12/11 C11080529-005 MW-12 08/09/11 7:35 08/12/11 C11080529-006 MW-18 08/10/11 14:20 08/12/11 C11080529-007 MW-27 08/08/11 12:20 08/12/11 C11080529-008 MW-28 08/08/11 11 :20 08/12/11 C11080529-009 MW-29 08/09/11 9 :45 08/12/11 C11 080529-01 0 MW-36 08/09/11 11 :50 08/12/11 C11080529-011 MW-37 08/11/11 8:15 08/12/11 C11080529-012 MW-70 08/10/11 14:20 08/12111 C11080529-013 Trip Blank (6092) 08/09/11 0 :00 08/12/11 C11080529-014 Temp Blank 08/12/11 Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Aqueous Gross Alpha minus Rn222 and Uranium Metals by ICP/ICPMS, Dissolved Fluoride Metals by ICP/ICPMS, Dissolved Solids, Total Dissolved Sulfate Metals by ICP/ICPMS, Dissolved Same As Above Metals by ICP/ICPMS, Dissolved Solids, Total Dissolved Sulfate Chloride Nitrogen, Nitrate + Nitrite Gross Alpha minus Rn222 and Uranium Solids, Total Dissolved Sulfate Aqueous Chloride Aqueous Metals by ICP/ICPMS, Dissolved Aqueous Metals by ICP/ICPMS, Dissolved Alkalinity QA Calculations Chloride Fluoride Nitrogen, Ammonia Nitrogen, Nitrate + Nitrite pH Gross Alpha minus Rn222 and Uranium Solids, Total Dissolved Sulfate SW8260B VQCs, Standard List Aqueous Same As Above Aqueous Solids, Total Dissolved Sulfate Aqueous SW8260B VOCs, Standard List Aqueous Temperature Page 1 of 38 EN:RGY I\"""1L)\I,<I' 1-11 " www.energylab.com AIfII1I/I:M~" 1m Helena, MT 877-472-0711 • Billings, NT 800-735-4489 • Casper, WY 881-235-0515 Gillette, WY 886-188-7175 • RapId CIty, SD 888-672-1225 • College Station, 1X 888-690-2218 ANAL VTICAL SUMMARY REPORT This report was prepared by Energy Laboratories, Inc., 2393 Salt Creek Hwy., Casper, WY 82601 . Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report, the QAlQC Summary Report, or the Case Narrative. The results as reported relate only to the item(s) submitted for testing. All samples are reported on an as received basis unless otherwise indicated. Samples corrected for dry weight indicate units that have -dry appended. If you have any questions regarding these test results, please call. Report Approved By: c3¥~ £) <JtAi~ Reporting Supervisor Digitally signed by Stephanie Waldrop Date: 2011.09.14 13:48:38 -06:00 Page 2 of 38 www.energytab.com AM/ftkMEIraIIwa .. ltil Helena, MT 877-472-0711 • Billings, MT 800-135-4489 • Caspar, WY 888-235-0515 Gillette WY 866·686-7175 • Ra Id C ,SD 888-672-1225 • Colle a Station IX 888-610-2218 CLIENT: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Report Date: 09/14/11 Sample Delivery Group: C11080529 CASE NARRATIVE ORIGINAL SAMPLE SUBMITTAL(S) All original sample submittals have been returned with the data package. SAMPLE TEMPERATURE COMPLIANCE: 4"C (±2"C) Temperature of samples received may not be considered properly preserved by accepted standards. Samples that are hand delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun. GROSS ALPHA ANALYSIS Method 900.0 for gross alpha and gross beta is intended as a drinking water method for low TDS waters. Data provided by this method for non potable waters should be viewed as inconsistent. RADON IN AIR ANALYSIS The desired exposure time is 48 hours (2 days). The time delay in returning the canister to the laboratory for processing should be as short as possible to avoid excessive decay. Maximum recommended delay between end of exposure to beginning of counting should not exceed 8 days. SOIL/SOLID SAMPLES All samples reported on an as received basis unless otherwise indicated. ATRAZINE, SIMAZINE AND PCB ANALYSIS Data for PCBs, Atrazine and Simazine are reported from EPA 525.2. PCB data reported by ELI reflects the results for seven individual Aroclors. When the results for all seven are NO (not detected), the sample meets EPA compliance criteria for PCB monitoring. SUBCONTRACTING ANALYSIS Subcontracting of sample analyses to an outside laboratory may be required. If so, ENERGY LABORATORIES will utilize its branch laboratories or qualified contract laboratories for this service. Any such laboratories will be indicated within the Laboratory Analytical Report. BRANCH LABORATORY LOCATIONS eli-b -Energy Laboratories, Inc. -Billings, MT eli-g -Energy Laboratories, Inc. -Gillette, WY eli-h -Energy Laboratories, Inc. -Helena, MT eli-r -Energy Laboratories, Inc. -Rapid City, SO eli-t -Energy Laboratories, Inc. -College Station, TX CERTIFICATIONS: USEPA: WY00002, Radiochemical WY00937; FL-DOH NELAC: E87641, Radiochemical E871 017; California: 02118CA; Oregon: WY200001; Utah: 3072350515; Virginia: 00057; Washington: C1903 ISO 17025 DISCLAIMER: The results of this Analytical Report relate only to the items submitted for analysis. ENERGY LABORATORIES, INC. -CASPER,WY certifies that certain method selections contained in this report meet requirements as set forth by the above accrediting authorities. Some results requested by the client may not be covered under these certifications. All analysis data to be submitted for regulatory enforcement should be certified in the sample state of origin. Please verify ELI's certification coverage by visiting www.energylab.com ELI appreciates the opportunity to provide you with this analytical service. For additional information and services visit our web page www.energylab.com. Page 3 of 38 EN:RGY ~"-'UI~ '\1 CHI .... www.energylab.com AM~ExA/lwaSlilu 1m Helena, MT 871-472-0711 • BIllings, MT 801-735-4489 • Casper, WY 881-235-0515 Gillette, WY 811-68B· 7175 • Rapid City, SD 88B·&12·1225 • College Station, TX B88·690·2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Method: A2320 B Sample 10: MBLK Alkalinity, Total as CaC03 Carbonate as C03 Bicarbonate as HC03 Count Result 3 Method Blank ND ND ND Units mg/L mg/L mg/L Sample 10: LCS Laboratory Control Sample Alkalinity, Total as CaC03 199 mg/L Sample 10: C110a0530-002AOUP 3 Sample Duplicate Alkalinity, Total as CaC03 116 mg/L Carbonate as C03 ND mg/L Bicarbonate as HC03 142 mg/L Sample 10: C110a0530-002AMS Sample Matrix Spike Alkalinity, Total as CaC03 240 mg/L Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration Report Date: 09/14/11 Work Order: C11080529 RL %REC Low Limit High Limit RPO RPOLImit Qual Batch: R149273 Run: MANTECH_110812A 08/12/11 14:34 1.0 1.0 1.0 Run: MANTECH_110812A 08/12/11 14:46 5.0 100 90 110 Run: MANTECH_110812A 08/12/11 19:22 5.0 0.3 10 5.0 10 5.0 0.3 10 Run: MANTECH_110812A 08/12/11 19:30 5.0 99 80 120 ND -Not detected at the reporting limit. Page 20 of 38 EN:RGY 1\· .:)f.;/d 8.~1 ~ www.energylab.com ARI1fIaI rxr.tIIM:I $IIIu I/IU Helena, MY 877-412-0711 • Billings, NT 800·135·4489 . Casper, WY 888·235-1515 Gillatta, WY 81&·181· 7115 • Rapid City, so 888·872-1225 • Collage Station, TX 888-690-2218 QA/Qe Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: A2540 C Sample 10: MBLKC Solids, Total Dissolved TDS @ 180 C Method Blank ND mg/L Sample 10: LCS1 Laboratory Control Sample Solids, Total Dissolved TDS @ 180 C 978 mg/L Sample 10: C11080529-003AOUP Sample Duplicate Solids, Total Dissolved TDS @ 180 C 5780 mg/L Sample 10: C11080549-005AMS Sample Matrix Spike Solids, Total Dissolved TDS @ 180 C 3300 mg/L Qualifiers: RL -Analyte reporting limit. MDe -Minimum detectable concentration Report Date: 09/14/11 Work Order: C11080529 RL %REC Low Limit High limit Run: BAL-l_ll0815D 10 Run: BAL-l_ll0815D 10 98 90 110 Run: BAL-l 110815D - 17 Run: BAL-l_110815D 10 102 90 110 ND -Not detected at the reporting limit. RPO RPOLimit Qual 0.4 Batch: R149362 08/12/11 16:32 08/12/11 16:32 08/12/11 16:33 10 08/12/11 16:39 Page 21 of 38 EI\ERGY ,\. :ul1"" 81 ~jI <. www.energylab.com ~ ElaIIItIu SIIIu '151 Helena, lIT 871-412-0711 • Billings, lIT 800-135-4489 • Casper, 'NY 888-235-0515 GillattB, 'NY 888-888-1115 • Rapid City, SO 888-612-1225 • College Station, TX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: A4500-CI B Sample 10: MBLK9-11/0S/22 Chloride Sample 10: C110S0415-001AMS Chloride Sample 10: C110S0415-001AMSO Chloride Sample 10: LCS35-11/0S/22 Chloride Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration Method Blank NO mg/L Sample Matrix Spike 81 .1 mg/L Sample Matrix Spike Duplicate 81.1 mg/L Laboratory Control Sample 3560 mg/L Report Date: 09/14/11 Work Order: C 11080529 RL %REC Low Limit High Limit RPO RPOLImit Qual Batch: 11/08/22-CL-TTR-W Run : TITRATION_ll 0822A 08/22111 11:10 1.0 Run: TITRATION_"0822A 08/22/11 11 :56 1.0 104 90 110 Run: TITRATION_"0822A 08/22/11 11 :58 1.0 104 90 110 0.0 10 Run : TITRATION_11 0822A 08/22/11 12 :35 1.0 100 90 110 NO -Not detected at the reporting limit. Page 22 of 38 EN:RGY ;'· ..... dl·/Il r: rll ~ www.energy1ab.com AR/!IkII~ SInu IIU Helena, r.rr 877-412-0711 • Billings, MT 800·735·4489 • Casper, WY 888-235-1515 Gillotta, WY 888-886-7175 • Rapid City, so 888-&12-1225 • College Station, TX 888-&90-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: A4500-F C Sample 10: MBLK Fluoride Sample 10: LCS Fluoride Sample 10: C110B0549-004AMS Fluoride Sample 10: C11080549-004AMSO Fluoride Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration Method Blank NO mg/L Laboratory Control Sample 2.04 mg/L Sample Matrix Spike 1.96 mg/L Sample Matrix Spike Duplicate 1.96 mg/L Report Date: Work Order: RL %REC Low Limit High Limit RPO Run: MANTECH_110815A 0.10 Run : MANTECH_110815A 0.10 102 90 110 Run: MANTECH_110815A 0.10 98 80 120 Run: MANTECH_11 0815A 0.10 98 80 120 0.0 NO -Not detected at the reporting limit. 09/14/11 C11080529 RPOLimit Qual Batch: R149305 08/15/1111:12 08/15/11 11:17 08/15/11 11 :57 08/15/11 11 :59 10 Page 23 of 38 www.energyiab.com EN:RGY ~I\ ""')Oi~J\1 :--,I~lf ~; AH/fIIaI fI.aIIMa SInA //IIZ Helena, MT 877-472-0711 • Billings, MT BOO-735-4489 • Casper, WY BBB-235-0515 Gillatta, WY BBB-BBB-7175 • Rapid City, SO B88-&72-1225 • College StatiDn, 1)( 888-690-2218 Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Method: A4500-H B QA/QC Summary Report Prepared by Casper, WY Branch Report Date: 09/14/11 Work Order: C11080529 Result Units RL %REC Low Limit High limit RPO RPOLlmlt Qual Sample 10: ICV1_110812_2 pH Initial Calibration Verification Standard Analytical Run : ORION555A_1108128 08/12/11 14:31 Method: A4500-H B Sample 10: C110B0529"()11AOUP pH Qualifiers: RL -Analyte reporting limit MDC -Minimum detectable concentration 6.90 s.u. 0.010 101 98 102 Sample Duplicate Run: ORION555A_1108128 7.70 S.U. 0.010 NO -Not detected at the reporting limit 2.2 08/12/11 15:28 3 Page 24 of 38 EI\ERGY iI.' .')P;\,I (~I~I' :) www.ener&Y1ab.com bI/fffaI ~ SIIa ,fISt Helena, MT 877-472-0711 • Billings, MT BOO-735-4489 • Casper, WY 88B-235-1515 Gillalta, WY 11&-&88-7175 • Rapid City, SD 888-&72-1225 • College Station, TX 888-&90-2218 QA/Qe Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: A4500-NH3 G Sample 10: MBLK-1 Nitrogen, Ammonia as N Sample 10: LCS-2 Nitrogen, Ammonia as N Sample 10: LFB-3 Nitrogen, Ammonia as N Sample 10: C11080549-0050MS Nitrogen, Ammonia as N Sample 10: C11080549-0050MSO Nitrogen, Ammonia as N Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration Method Blank ND mg/L Laboratory Control Sample 1.98 mg/L Laboratory Fortified Blank 1.99 mg/L Sample Matrix Spike 1.91 mg/L Sample Matrix Spike Duplicate 1.88 mg/L Report Date: Work Order: RL %REC Low limit High limit RPO Run: TECHNICON_11 0815A 0.050 Run: TECHNICON_11 0815A 0.050 98 90 110 Run: TECHNICON_110815A 0.050 101 80 120 Run: TECHNICON_11 0815A 0.050 97 80 120 Run: TECHNICON_110815A 0.050 96 80 120 1.6 ND -Not detected at the reporting limit. 09/14/11 C11080529 RPOlimit Qual Batch: R149306 08/15/11 12:35 08/15/11 12:37 08/15/11 12:39 08/15/11 13:01 08/15/11 13:03 10 Page 25 of 38 EN:RGY 1\ .... 0 1 U\I ~I"'I ~, www.energylab.com AH/fIIaIr-a.-.. /lBI Helena, MT 877-472-0711 • 81111ngs, MY 800-735-4489 • Casper, WY 881-235-0515 Gillatta, WY 818-186-7175 • Rapid City, SD 888-872-1225 • Collogo Station, TX 881-680-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: A4500-S04 E Sample 10: LCS-1_110822 Sulfate Sample 10: MBLK-C110822 Sulfate Sample 10: C11080529-D12AMS Sulfate Sample 10: C11080529-D12AMSO Sulfate Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration Laboratory Control Sample 4930 mg/L Method Blank ND mg/L Sample Matrix Spike 3840 mg/L Sample Matrix Spike Duplicate 3840 mg/L Report Date: 09/14/11 Work Order: C11080529 RL %REC Low Limit High Limit RPO RPOLimit Qual Batch: 11 0822_1_S04-TURB-W Run: TURB-2_11 0822A 08/22/11 15:23 100 103 90 110 Run: TU RB-2_11 0822A 08/22/11 15:25 10 Run: TURB-2_110822A 08/22/11 17:17 100 101 90 110 Run: TURB-2_110822A 08/22/11 17:19 100 101 90 110 0.0 10 NO -Not detected at the reporting limit. Page 26 of 38 EI\ERGY I\~'OP,\I ':..)HI 'J www.energylab.com u./fIIaI r-s.-SIIIu IIBI Helene, MT 871-412-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-D515 Gillatta, WY 8&B-18&-7115 • Rapid City, so 888-672-1225 • College StatiDn, 1X 888-610-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Report Date: 09/14/11 Project: 3rd Quarter Groundwater 2011 Work Order: C11080529 Analyte Count Result Units RL %REC Low limit High Limit RPO RPOLimit Qual Method: E200.7 Batch: R149514 Sample 10: MB-110818A 5 Method Blank Run: ICP2-C_110B1BA 08/18/11 13:12 Calcium ND mg/L 0.60 Iron ND mg/L 0.030 Magnesium ND mg/L 0.50 Potassium ND mg/L 0.50 Sodium ND mg/L 0.90 Sample 10: LFB-110818A 5 Laboratory Fortified Blank Run: ICP2-C_110B1BA 08/18/11 13:16 Calcium 48.1 mg/L 0.50 96 85 115 Iron 0.938 mg/L 0.030 94 85 115 Magnesium 47.8 mg/L 0.50 96 85 115 Potassium 44.5 mg/L 0.50 89 85 115 Sodium 49.6 mg/L 0.50 99 85 115 Sample 10: C11080659-003BMS2 5 Sample Matrix Spike Run: ICP2-C_11 0818A 08/18/11 15:35 Calcium 113 mg/L 1.0 95 70 130 Iron 2.08 mg/L 0.030 98 70 130 Magnesium 101 mg/L 1.0 96 70 130 Potassium 94.5 mg/L 1.0 91 70 130 Sodium 105 mg/L 1.0 98 70 130 Sample 10: C11080659-003BMSO 5 Sample Matrix Spike Duplicate Run: ICP2-C_110818A 08/18/11 15:39 Calcium 110 mg/L 1.0 93 70 130 2.5 20 Iron 2.07 mg/L 0.030 98 70 130 0.8 20 Magnesium 97.2 mg/L 1.0 92 70 130 3.4 20 Potassium 89.0 mg/L 1.0 86 70 130 5.9 20 Sodium 103 mg/L 1.0 96 70 130 1.7 20 Method: E200.7 Batch: R150560 Sample 10: MB-110910A Method Blank Run: ICP2-C_11 0912A 09/12/11 10:32 Iron ND mg/L 0.030 Sample 10: LFB-110910A Laboratory Fortified Blank Run: ICP2-C_110912A 09/12/11 10:36 Iron 0.928 mg/L 0.030 93 85 115 Sample 10: C11090256-002AMS2 Sample Matrix Spike Run: ICP2-C_11 0912A 09/12111 20 :55 Iron 2.01 mg/L 0.030 99 70 130 Sample 10: C11090256-002AMSO Sample Matrix Spike Duplicate Run: ICP2-C_110912A 09/12/11 20 :59 Iron 1.95 mg/L 0.030 95 70 130 3.2 20 Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. MDC -Minimum detectable concentration Page 27 of 38 EI\ERGY ,\-'OI .I\I ')h'I,_:", www.energytab.com Au/fIIcII EIuIMw SInu IISI Halena, MY 877-412-0711 • BIllings, MT 800-135-4489 • Casper, WY 888-235-0515 Gillette, WY 886-186-1115 • Rapid City, SD 888-&12-1225 • Collage Station, 1X 888-610-2218 QA/Qe Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Method: E200.8 Sample 10: LRB Uranium Sample 10: LFB Uranium Sample 10: C11080445-008AMS4 Uranium Count Result Units Method Blank ND mg/L Laboratory Fortified Blank 0.0523 mg/L Sample Matrix Spike 0.0988 mg/L Sample Matrix Spike Duplicate Report Date: 09/14/11 Work Order: C11080529 RL %REC Low Limit High Limit RPD RPDLlmit Qual 0.00030 0.00030 105 0.00030 109 Run: ICPMS2-C_110817A Run: ICPMS2-C_110817A 85 115 Run: ICPMS2-C_11 0817A 70 130 Run: ICPMS2-C_11 0817A Batch: R149442 08/17/11 12:24 08/17/11 12:25 08/17/11 16:12 Sample 10: C11080445-008AMSD Uranium 0.103 mg/L 0.00030 119 70 130 4.6 08/17/11 16:14 20 Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. MDC -Minimum detectable concentration Page 28 of 38 www.energy1ab.com AM/fIIrM ExuIJwIu SInu /152 Helena, MY 877-472-0711 • Billings, MY 800-735-4489 • Casper, 'NY 888-235-0515 Gillette, WY 8&8-18&-7175 • Rapid City, SD 888-872-1225 . College Station, IX 888-690-2218 OA/oe Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Method: E200.8 Sample 10: C11080557-002CMS4 Arsenic Cadmium Chromium Copper Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Count Result Units 16 Sample Matrix Spike 0.0543 mg/L 0.0474 mg/L 0.0477 mg/L 0.0485 mg/L 0.0493 mg/L 0.0600 mg/L 0.00490 mg/L 0.0515 mg/L 0.0470 mg/L 0.0496 0.0161 0.0501 0.0497 0.0498 0.0492 0.0495 mg/L mg/L mg/L mg/L mg/L mg/L mg/L Sample 10: C11080557-002CMSO 16 Sample Matrix Spike Duplicate Arsenic 0.0576 mg/L Cadmium 0.0489 mg/L Chromium Copper Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Sample 10: LRB Arsenic Cadmium Chromium Copper Lead Manganese Mercury Molybdenum Nickel Qualifiers: RL -Analyte reporting limit. 0.0504 mg/L 0.0508 mg/L 0.0515 mg/L 0.0613 mg/L 0.00529 mg/L 0.0534 mg/L 0.0503 mg/L 0.0505 mg/L 0.0189 mg/L 0.0522 mg/L 0.0519 mg/L 0.0511 mg/L 0.0522 mg/L 0.0525 mg/L 16 Method Blank ND ND mg/L mg/L ND mg/L ND mg/L ND mg/L ND mg/L ND mg/L ND mg/L ND mg/L MDC -Minimum detectable concentration Report Date: 09/14/11 Work Order: C11080529 RL %REC Low Limit High Limit 0.0010 0.010 0.0010 0.010 0.0010 0.010 0.0010 0.0010 0.0010 0.0010 0.010 0.0010 0.0013 0.00030 0.0010 0.010 0.0010 0.010 0.0010 0.010 0.0010 0.010 0.0010 0.0010 0.0010 0.0010 0.010 0.0010 0.0013 0.00030 0.0010 0.010 0.0050 0.00050 0.020 0.010 0.0010 0.010 0.00050 0.010 0.020 109 95 95 97 99 97 98 100 94 99 81 100 99 100 98 99 115 98 101 102 103 99 106 104 100 101 95 104 104 102 104 105 Run: ICPMS4-C_l1 0816A 70 130 70 130 70 130 70 130 70 130 70 130 70 130 70 130 70 130 70 70 70 70 70 70 70 130 130 130 130 130 130 130 Run: ICPMS4-C_l10816A 70 130 70 130 70 130 70 130 70 130 70 70 70 70 70 70 70 70 70 70 70 130 130 130 130 130 130 130 130 130 130 130 Run: ICPMS4-C_ll0816A ND . Not detected at the reporting limit. RPO RPOLlmlt Qual 5.9 3.1 5.5 4.5 4.4 2.1 7.6 3.7 6.8 1.9 16 4.2 4.3 2.5 5.8 5.9 Batch: R149401A 08/17/11 03:00 08/17/11 03:05 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 08/16/11 12:59 Page 29 of 38 EN:RGY "\r·l)I./~1 )ill' '- www.energylab.com AM/ftItM ExeMlttlu Sil¥' 11$1 Helena, MT 877-472-0111 • Billings, MT 8DO-735-4-489 • Casper, WY 888-235-0515 GIIIBtta, WY 818-186-1175 • Rapid City, SD 888-672-1225 • College station, IX 881-680-2218 QA/Qe Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Report Date: 09/14/11 Project: 3rd Quarter Groundwater 2011 Work Order: C11080529 Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual Method: E200.8 Batch: R149401 A Sample 10: LRB 16 Method Blank Run: ICPMS4-C_110816A 08/16/11 12:59 Selenium ND mg/L 0.0050 Silver ND mg/L 0.010 Thallium NO mg/L 0.00050 Tin ND mg/L 0.10 Uranium ND mg/L 0.00030 Vanadium ND mg/L 0.010 Zinc ND mg/L 0.010 Sample 10: LFB 16 Laboratory Fortified Blank Run: ICPMS4-C_110816A 08/16/11 13:04 Arsenic 0.0530 mg/L 0.0010 106 85 115 Cadmium 0.0521 mg/L 0.0010 104 85 115 Chromium 0.0552 mg/L 0.0010 110 85 115 Copper 0.0553 mg/L 0.0010 111 85 115 Lead 0.0535 mg/L 0.0010 107 85 115 Manganese 0.0542 mg/L 0.0010 108 85 115 Mercury 0.00524 mg/L 0.0010 105 85 115 Molybdenum 0.0531 mg/L 0.0010 106 85 115 Nickel 0.0553 mg/L 0.0010 110 85 115 Selenium 0.0500 mg/L 0.0010 100 85 115 Silver 0.0207 mg/L 0.0010 103 85 115 Thallium 0.0533 mg/L 0.0010 107 85 115 Tin 0.0533 mg/L 0.0010 107 85 115 Uranium 0.0529 mglL 0.00030 106 85 115 Vanadium 0.0546 mg/L 0.0010 109 85 115 Zinc 0.0543 mg/L 0.0010 108 85 115 Method: E200.8 Batch: R149443A Sample 10: C11080546-005BMS4 2 Sample Matrix Spike Run: ICPMS4-C_110817A 08/17/11 19:35 Cobalt 0.0491 mg/L 0.010 96 70 130 Thallium 0.0548 mg/L 0.0010 109 70 130 Sample 10: C11080546-005BMSO 2 Sample Matrix Spike Duplicate Run: ICPMS4-C_11 08HA 08/17/11 19:40 Cobalt 0.0512 mg/L 0.010 100 70 130 4.2 20 Thallium 0.0578 mg/L 0.0010 116 70 130 5.5 20 Sample 10: LRB 2 Method Blank Run: ICPMS4-C_110817A 08/17/11 13:22 Cobalt ND mg/L 0.010 Thallium ND mg/L 0.00050 Sample 10: LFB 2 Laboratory Fortified Blank Run: ICPMS4-C_110817A 08/17/11 13:27 Cobalt 0.0515 mg/L 0.0010 103 85 115 Thallium 0.0519 mg/L 0.0010 104 85 115 Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. MDC -Minimum detectable concentration Page 30 of 38 EN:RGY I\~Ol f/\1 sr~IL " WWN.energylab.com AR/fIIaI r.-!IMu SI1Iu 1951 Helena, MT 877-472-0711 • Billings, MT BOO-735-4489 • Casper, WY 888-235-D515 Gillette, WY 886-&8&-7115 • Rapid City, SO 888-&72-1225 • Collage Station, IX 888-610-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Report Date: 09/14/11 Project: 3rd Quarter Groundwater 2011 Work Order: C11080529 Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLImit Qual Method: E200.8 Batch: R149486A Sample 10: C11070839~17BMS4 5 Sample Matrix Spike Run: ICPMS4-C_110818A 08/18/11 21 :50 Beryllium 0.256 mg/L 0.Q10 95 70 130 Lead 0.263 mg/L 0.050 105 70 130 Mercury 0.0240 mg/L 0.0010 96 70 130 Thallium 0.261 mg/L 0.10 104 70 130 Uranium 0.277 mg/L 0.00030 110 70 130 Sample 10: C11070839-017BMSO 5 Sample Matrix Spike Duplicate Run: ICPMS4-C_11 0818A 08/18/11 21 :55 Beryllium 0.247 mg/L 0.010 91 70 130 3.8 20 Lead 0.258 mg/L 0.050 103 70 130 2.2 20 Mercury 0.0247 mg/L 0.0010 99 70 130 3.0 20 Thallium 0.257 mg/L 0.10 102 70 130 1.5 20 Uranium 0.271 mg/L 0.00030 108 70 130 2.2 20 Sample 10: LRB 5 Method Blank Run: ICPMS4-C_110818A 08/18/11 11 :25 Beryllium ND mg/L 0.00050 Lead ND mg/L 0.0010 Mercury ND mg/L 0.00050 Thallium ND mg/L 0.00050 Uranium ND mg/L 0.00030 Sample 10: LFB 5 Laboratory Fortified Blank Run: ICPMS4-C_110818A 08/18/11 11 :30 Beryllium 0.0549 mg/L 0.0010 110 85 115 Lead 0.0531 mg/L 0.0010 106 85 115 Mercury 0.00536 mg/L 0.0010 106 85 115 Thallium 0.0536 mg/L 0.0010 107 85 115 Uranium 0.0539 mg/L 0.00030 108 85 115 Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. MDC -Minimum detectable concentration Page 31 of 38 EI\ERGY A-~".Jn/\r()1 fI '3 www.energylab.com AHIfIIaI~SfIIu IW Helena, MT 877-472-0711 • BIllings, MY 800-735-4489 . Casper, WV 888-235-0515 Gillette, WY 888-8B8-7175 • Rapid City, SO 888-872-1225 • College Station, TX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Report Date: 09/14/11 Project: 3rd Quarter Groundwater 2011 Work Order: C11080529 Analyte Count Result Units RL %REC Low limit High Limit RPO RPOLimit Qual Method: E353.2 Batch: R149379 Sample 10: MBLK-1 Method Blank Run: TECHNICON_11 0816A 08/16/11 12:36 Nitrogen, Nitrate+Nitrite as N ND mg/L 0.10 Sample 10: LCS-2 Laboratory Control Sample Run: TECHNICON_11 0816A 08/16/11 12:58 Nitrogen, Nitrate+Nitrite as N 2.41 mg/L 0.10 96 90 110 Sample 10: LFB-3 Laboratory Fortified Blank Run: TECHNICON_110816A 08/16/11 13:01 Nitrogen, Nitrate+Nitrite as N 1.88 mg/L 0.10 96 90 110 Sample 10: C110B0546-0030MS Sample Matrix Spike Run: TECHNICON_11 0816A 08/16/11 14:41 Nitrogen, Nitrate+Nitrite as N 2.16 mg/L 0.10 102 90 110 Sample 10: C110B0546-0030MSO Sample Matrix Spike Duplicate Run: TECHNICON_110816A 08/16/11 14:44 Nitrogen, Nitrate+Nitrite as N 2.22 mg/L 0.10 105 90 110 2.7 10 Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. MDC -Minimum detectable concentration Page 32 of 38 EI'ERGY A HOIUd :.)111' ~ www.energyiab.com AIu/ffIaI E.rulIIIa SIIIu //JU Helena, MT 877·472-0711 • Billings, MT 800·735·4489 • Casper, WY 888-235·0515 Gillette, WY 8IB·I8&· 7175 • Rapid City, SD 888·&72·1225 • College Station, TX 888-610·2218 QA/Qe Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: E900.1 Sample 10: MB·GA-0464 Gross Alpha minus Rn & U 3 Method Blank Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MDC Sample 10: LCS·GA·0464 Gross Alpha minus Rn & U Sample 10: C110B0274-0010MS Gross Alpha minus Rn & U Sample 10: C110B0274-0010MSO Gross Alpha minus Rn & U auallfiers: RL -Analy1e reporting limit. MDC -Minimum detectable concentration -0.0919 pCi/L 0.0673 pCi/L 0.136 pCi/L Laboratory Control Sample 23.1 pCi/L Sample Matrix Spike 46.4 pCilL Sample Matrix Spike Duplicate 47.1 pCi/L Report Date: 09/14/11 Work Order: Cl1080529 RL %REC Low Limit High Limit RPO RPOLimit Qual Run: BERTHOLD 770-1_1108170 Run: BERTHOLD 770-1 _1108170 98 70 130 Run: BERTHOLD 770-1 1108170 - 95 70 130 Run: BERTHOLD 770-1 1108170 - 97 70 130 1.6 ND -Not detected at the reporting limit. U -Not detected at minimum detectable concentration Batch: GA-0464 09/01/11 15:35 U 09/01/11 15:35 09/01/11 15:35 09/01 III 15:35 16 Page 33 of 38 EN:RGY J\:-10~U\T O'41 ~. www.energylab.com ~1 EzuIlMu Slnu 1151 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 866-886-7175 • Rapid City, SD 888-&72-1225 • College Station, lX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Report Date: 09/14/11 Project: 3rd Quarter Groundwater 2011 Work Order: C11080529 Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual Method: SW8260B Batch: R149549 Sample 10: 18-Aug-11_LCS_4 15 Laboratory Control Sample Run: GCMS2_110818B 08/18/11 12:46 Benzene 11 ug/L 1.0 114 70 130 Carbon tetrachloride 12 ug/L 1.0 119 70 130 Chloroform 11 ug/L 1.0 114 70 130 Chloromethane 12 ug/L 1.0 116 70 130 m+p-Xylenes 20 ug/L 1.0 100 70 130 Methyl ethyl ketone 84 ug/L 20 84 70 130 Methylene chloride 10 ug/L 1.0 100 70 130 Naphthalene 10 ug/L 1.0 101 70 130 o-Xylene 10 ug/L 1.0 100 70 130 Toluene 12 ug/L 1.0 115 70 130 Xylenes, Total 30 ug/L 1.0 100 70 130 Surr: 1,2-0ichlorobenzene-d4 1.0 96 80 120 Surr: Oibromofluoromethane 1.0 98 70 130 Surr: p-Bromofluorobenzene 1.0 110 80 130 Surr: Toluene-d8 1.0 94 80 120 Sample 10: 18-Aug-11_MBLK_6 15 Method Blank Run: GCMS2_11 0818B 08/18/11 13:55 Benzene NO ug/L 1.0 Carbon tetrachloride NO ug/L 1.0 Chloroform NO ug/L 1.0 Chloromethane NO ug/L 1.0 m+p-Xylenes NO ug/L 1.0 Methyl ethyl ketone NO ug/L 20 Methylene chloride NO ug/L 1.0 Naphthalene NO ug/L 1.0 o-Xylene NO ug/L 1.0 Toluene NO ug/L 1.0 Xylenes, Total NO ug/L 1.0 Surr: 1,2-0ichlorobenzene-d4 1.0 104 80 120 Surr: Oibromofluoromethane 1.0 92 70 130 Surr: p-Bromofluorobenzene 1.0 114 80 120 Surr: Toluene-d8 1.0 93 80 120 Sample 10: C110B0415-001PMS 15 Sample Matrix Spike Run: GCMS2_11 0818B 08/18/11 19:42 Benzene 220 ug/L 10 110 70 130 Carbon tetrachloride 250 ug/L 10 126 70 130 Chloroform 230 ug/L 10 116 70 130 Chloromethane 200 ug/L 10 102 70 130 m+p-Xylenes 390 ug/L 10 99 70 130 Methyl ethyl ketone 2000 ug/L 200 102 70 130 Methylene chloride 200 ug/L 10 101 70 130 Naphthalene 160 ug/L 10 82 70 130 o-Xylene 200 ug/L 10 98 70 130 Toluene 230 ug/L 10 113 70 130 Xylenes, Total 590 ug/L 10 99 70 130 Qualifiers: RL -Analyte reporting limit. NO -Not detected at the reporting limit. MOC -Minimum detectable concentration Page 34 of 38 EI\ERGY /\-IOlV .... T::Jr~l:_~ WWN.energylab.com ~Uallwrasmc.I/IU Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillotte, WY 886-688-7175 . Rapid City, SD 888-872-1225 . College Station, IX 888-890-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 3rd Quarter Groundwater 2011 Analyte Count Result Units Method: SW8260B Sample 10: C11080415-001PMS 15 Sample Matrix Spike Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Sample 10: C11080415-001PMSO 15 Sample Matrix Spike Duplicate Benzene 230 ug/L Carbon tetrachloride 260 ug/L Chloroform 240 ug/L Chloromethane 240 ug/L m+p-Xylenes 400 ug/L Methyl ethyl ketone 2300 ug/L Methylene chloride 210 ug/L Naphthalene 210 ug/L o-Xylene 200 ug/L Toluene 230 ug/L Xylenes, Total 600 ug/L Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Qualifiers: RL -Analyte reporting limit. MDe -Minimum detectable concentration Report Date: Work Order: RL %REC Low Limit High Limit Run: GCMS2_110818B 1.0 96 80 120 1.0 105 70 130 1.0 105 80 120 1.0 96 80 120 Run: GCMS2_11 0818B 10 114 70 130 10 130 70 130 10 122 70 130 10 121 70 130 10 101 70 130 200 116 70 130 10 106 70 130 10 103 70 130 10 100 70 130 10 116 70 130 10 100 70 130 1.0 99 80 120 1.0 108 70 130 1.0 106 80 120 1.0 95 80 120 ND -Not detected at the reporting limit. R -RPD exceeds advisory limit. RPO 2.9 2.8 5.0 17 2.0 13 5.4 23 1.6 2.8 1.9 0.0 0.0 0.0 0.0 09/14/11 C11080529 RPOLimit Qual Batch: R149549 08/18/11 19:42 08/18/11 20:16 20 20 20 20 20 20 20 20 R 20 20 20 10 10 10 10 Page 35 of 38 EI\ERGY i\"l(JI -.I\ I .... ·' .. 1 .~ ~ www.energylab.com ~ ~rx~,*-"ShluIW Helena, MT 877-472-0711 • Billings, MT 800-735-4489 . Casper, WY 888-235-0515 Gillette, WY 818-&8&-7175 • Rapid City, SO 888-&72-1225 • Coliege Station, TX 881-890-2218 Workorder Receipt Checklist Denison Mines USA Corp 111111111111111111111111111111111111111111111111111111I C11080529 Login completed by: Debra Williams Reviewed by: BL2000\Tedwards Reviewed Date: 8/17/2011 Shipping container/cooler in good condition? Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Chain of custody present? Chain of custody signed when relinquished and received? Chain of custody agrees with sample labels? Samples in proper container/bottle? Sample containers intact? Sufficient sample volume for indicated test? All samples received within holding time? ContainerfTemp Blank temperature: Water -VOA vials have zero headspace? Water -pH acceptable upon receipt? Contact and Corrective Action Comments: Yes [{] Yes [{] Yes 0 Yes [{] Yes [{] Yes [{] Yes [{] Yes [{] Yes [{] Yes [{] 2.9"C On Ice Yes [{] Yes [{] Date Received: 8/12/2011 Received by: kg Carrier FedEx name: No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 NoD No 0 No 0 Not Present 0 Not Present 0 Not Present [{] No VOA vials submitted 0 Not Applicable 0 MW-70 is only being analyzed for Sulfate and TDS, not quote C1640 as indicated on COC per Ryan Palmer 8/12/11. Page 36 of 38 i) OJ <C <D (;.) -....j o -(;.) co IIIlIII!IL • _._. -__ •• ,...... ,-, _ .... -___ ""_V" •••• _, ••• _ ... _ •• __ t.lv __ ._._., Company Name: Project Name. PWS. Permit, Etc. Samp!e Origin EPA/State Compliance.: DO\~~()" M~nes. 3r~ QUArtu G-round. WA.~r ;)..01, State: lA, Yes (ii(' No 0 Report Mail Address: Po aC)( gO~ Contact Name: Phone/Fax: Email: Sampler: (Please Print) 131Ma~lLcl ~-rgLl!;ll ~~tJI,." ?~\m(.C'" \..\~ b7g~1 -r;:""U" }.l6l1;ct,,-'l Invoice Addr~ Invoice Contact & Phone: Purchase Order: Quote/Bottle Order: SGtt1\t .sAMe Special Report/Formats: ~';1@[J@ ~QD§@~ ... Contact ELI prior to Shipped by. 3: RUSH sample submittal 'rf£-uJl? 0 Qj ~OUl= [ R for charges and Cooler 100s,. c:cc;gOI Qj a scheduling -See (/e,,} ._> 0 >.(;j W Instruction Page o OW 0 EDDJEDT(Electronic Data) ~CJ)~ m 3: ~ ::r: "C o POTWIWWTP FORnat: 03:0 co 0> ~ <..> I:: Comments: RecalptTemp U «CJ)~Q~ ::::l U ~.t1 '0 ... IDII:: ~ ~ DC o State: 0 LEVEL IV •• Q,) c:.t;: J !II o Other: 0 NELAC ~nr~~ , i l-E tJ'\'W '-C\ On lee: 0)N ~~ ~ ~ ~ « :l .:) Q,).~ 4)3: ~ .~ ~ .... 5 ZCi..«Ig>o ~ .~ ~ "E Custody Seal E >1 ~ #-,.~ i !II "\~~~ On Bottle ~: co ~ $ ~ '~ "C CJ) ~ .~ ~ c: On COOler d 1 J 1& d -t s H OY\\~(o(\. Intact Y N '--F ~ en SAMPLE IDENTIFICATION Collection Collection MATRIX .J1 ~ <-~r Signalu,. G)N (Name, Location,lnterval, etc.) Date Time Match I X MW-~ s( ... k-\ I 1~30 l-~ ~ 2 ~w-3 ~-IQ-\\ 0950 2-W l.,c 'f. ~ 3 MW-~A 1{(-1I-" 0,35 2-w .'" f.. 1)( \Q) hnn 4.MW_~ if(·q-11 1 Hl.1:\ }-\\I -' I ~ ~ 5 MW-1c2 ; 5< .. '1. H 073S \-w 'j ~ 6 MW-1K '{(-lO-U '11.20 :t-W l ~ '1. Ix ~ 7 MW-:J.7 &liJ11 IllO ~-W ~ '"" 'J.. -)( l'i ~ ~ 8 f'JIW-U I Kit/II l'~O \-\\1 X ~ ~ll fjx~C 9 MW ... ;z.q 15(/9/11 OQ4S I-W iL 'IQ'Q - 01' ~ to ~~-3b ir../Q/II 1\50 fo-\tV )< I:::::! Custody T~:;d ~:iir;t.. stlll,;;r \ l:30 &91/5/.7. Received by (pilot): DateITIme: SlgnalUle: ~"r.lML .. Record Relfnqulshe<l by (prlnt~ ~ DateITIme: $,gnal.ure: ..,J Received by (prir( I: DaleJTome: Slgna!UIO: MUST be Signed I<~veo D,aooraW<)': i~j ~":j J 1~ M' s~nk~:_ ~ Sample Disposal: Return to Client: _ La~ Disposal: Kr.J :})~ --- .. In certain circumstances, samples submitted to Energy Laboratories, Inc. may be subcontracted to other certified laboratories in order to complete the analysis requested. This serves as notice of this possibility. All sub-contract data will be clearly notated on your analytical report . Visit our web site at www.energylab.com for additional information, downloadable fee schedule, forms, and links. iJ OJ co (l) w CD Q. w CD Id#~t#N a!zZ-IIU·UU' PLEASE PRINT (Provide as much information as possible.) I Company Name: Project Name. PWS. Permit. Etc. Sample Origin EPA/State Compliance: I t)~,,\~0(\ M~(\e~ ?{6. Q",u-te.r GfO\.)l\cl W~+«.r 2.0'1 State: VI..'T Yes ~ No 0 I Report Mail Address: 'PO ~C) 80 ,\ Contact Name: Phone/Fax: Email: Sampler: (Please Print} R~CV\ P .... \~r 435 '7~ ~I -ro.J\,,(.r 8C.1I:44K ~\Dl.nl~l\~ \XT gL\5,l\ i Invoice Address: Invoice Contact & Phone: Purchase Order: Quote/Bottle Order: I ~M<.. ~4n\ (... Special Report/Formats: ~ fi\[j~J&ill}l7@[]@ OO~@!!D@'@'i]'~ .. Contact ELI prior to I Ff-&/ 0 CD RUSH sample submittal ~O<ll£ ~ for charges and Cool., lO(s}: , :g w;gOI CD 0 ~ R scheduling -See '-/:,," I-·->O;;....(il W Instruction Page o OW 0 EDD/EDT(Eleclronic Data} J9 (/) CI) "' ~ c U! U> :c o~-U) C) ~ '0 ReceiptTemp o POTWIWVVTP Format: u S "'c: ~ c: Comments: o~ ~I~I~ :J U 2.'1 ~ a °c o State: D LEVEL IV ... ..... a:;S c:::"l:: t-III ~~I~~ V ~ c o Other: D NELAC ... On Ice: @N :J ::I.~~I ~~ '\t l-S z a. (1)0 W '0 Custody Seal E >1 J W Co On Bottle !: II) CfJ '0 CI) c: On Cooler ~ H Intact SAMPLE IDENTIFICATION Collection Collection MATRIX Signatuni (Name. Location, Interval, etc.) Date Time Match Y N 1 fJ.w -37 ~/lILlI O~15 ~-w )<. ~ 2 MW-7C Z/loLU l~O ;2.-'tJ . )<. ~- 3 ""'('~O ~ 1~t\ 'k '0'12 E/'t/(' ~ Ilnll 4 I I 5 ~ 6 ~ 7 ~ 8 t (lO~~;2 f1 9 ~~ 10 It:::! Custody Relinquished by ID/~ Oalefrme: SignOlilljJJ;....i.. Recelved by (print)· Oa\elTlme: Signa tire: :;~J1H . g)Il/~1 1 1130 .:'\~Arl.P!C.. -.A Record Relinquished by {pril1\)'.J OatelT1me: Slgnallh1!: '-.J ReceIved by {Ptint~ Oaletrrme. Slgnature: MUST be ~A.I\M.r Ho1\~JcA Signed 'V }(;'veG Z YDOramry: ua(e< lme: ~:L-Sample Disposal: Return to Client: Lab Disposal; r.·',) :S .Y-f ~J~'IJ 'f~nS In certain circumstances, samples submitted to Energy Laboratories, Inc. may be subcontracted to other certified laboratories in order to complete the analysis requested. This serves as notice 01 this possibility. All sub-contract data will be clearly notated on your analytical report. VISit our web site at www.energvlab.com for additional information, downloadable fee schedule. forms, and links. TabF Laboratory Analytical Reports -Accelerated Monitoring TabFl Laboratory Analytical Reports -Accelerated Monitoring July 2011 ORGANIC ANALYTICAL REPORT Client: Denison Mines Project: Lab Sample ID: July Monthly Ground Water 2011 11D7136-001A Client Sample ID: MW-11 Collection Date: 7/6/2011 Received Date: 7/8/2011 Analytical Results Analyzed: 7/8/2011 1803h Units: Ilg/L 1215h 1000h 463 West 3600 South Dilution Factor: 1 Salt Lake City, UT 84115 Compound Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-labs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer T etrah ydrofuran Surr: 1,2-Dichloroethane-d4 Surr: 4-Bromofluorobenzene Surr: Dibromofluoromethane Surr: Toluene-d8 Contact: Jo Ann Tischler Method: SW8260C VOAs by GC/MS Method 8260C/S030C CAS Reporting Analytical Number Limit Result Qual 109-99-9 l.00 < l.00 17060-07-0 77-144 115 460-00-4 80-123 108 1868-53-7 80-124 103 2037-26-5 80-l25 96.6 Report Date: 7112/20 II Page 4 of 15 All analyses applicable [0 the CWA, SDWA. and RCRA arc pcrfonllcd in accordance to NELAC' protocols Pel1inent sampJinlj: information is located on the attached CDC This report is provided for the exclusive usc oftnc addlcssCC Privileges of subsequent L1SC of the name of this company 0, any member of its staff, or reproduction of this report in connection with the advertisement, promotion or sale of any product or process, or in connection WIth the Le-publication of this report for any purpose other than for the addressee will be granted only on contact This company accepts no responsibility except fOl the due perfomlance of inspection and/Ol analysis in good nlith Imd according to the 11l1cs ofrhe trade and ofseicncc. EN:RGY 1\ ">j , .. ;. I ~.'11 1' • www.enerllYlab.com AM/yfII:M EIuIItIa SIRes 'flU Helena, MT 877-472-0711 • Billings, MT 800·735·4489 • Casper, WY 881-235-0515 Gillette, WY 8&&-188-7175 • Rapid City, SD 888-672-1225 • Collage Station, TX 818-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: LablD: Denison Mines USA Corp July Monthly Groundwater 2011 C11070274-001 Client Sample ID: MW-11 Analyses Result Units METALS -DISSOLVED Manganese Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. 151 ug/l Qualifier RL 10 Report Date: 08/01/11 Collection Date: 07/06/11 12:15 DateReceived: 07/08/11 Matrix: Aqueous MCL! QCL Method Analysis Date 1 By E200.8 07/29/11 12:26/ sml MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 3 of 20 EN:RGY ,"\ r lJ 1/.·, --1' ~!' :... lWIW.energylab.com AMIytIaI E.rAfIHw .. ,JU Helena, MT 877·472-0711 • Billings, MT 80D·735·4489 . Casper, WY 818-235-1515 Gillalta, WY 886·188·7175 . Rapid City, SD 888·&72·1225 . College Station,1X 618-610-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab ID: Denison Mines USA Corp July Monthly Groundwater 2011 C11070274-002 Client Sample ID: MW-2S Analyses METALS· DISSOLVED Uranium Report Definitions: Rl -Analyte reporting limit. QCL -Quality control limit. Result Units 6.74 ug/L Qualifier RL 0.30 Report Date: 08/01/11 Collection Date: 07106/11 12:30 DateReceived: 07108/11 Matrix: Aqueous MCL! QCL Method Analysis Date / By E200.8 07/11/1110:42/sml MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 4 of 20 EN:RGY ;\t~()I~;\I { t"I~', www.energylab.com AM/ffkIII br:a/lnt:dtllU 1111 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 · CaspBr, W'l888-235-0515 Gillette, WY 816-188-7175 . Rapid City, SO 888-672-1225 • College Station, IX 881-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: July Monthly Groundwater 2011 Lab 10: C11070274-003 Client Sample 10: MW-26 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N PHYSICAL PROPERTIES Solids, Total Dissolved TDS @ 180 C METALS -DISSOLVED Uranium RADIO NUCLIDES -DISSOLVED Gross Alpha minus Rn & U Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MDC VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes, Total Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result 64 0.9 3270 57.1 2.8 0.4 0.2 ND NO ND 300 NO ND 2.4 NO NO ND 105 92.0 108 85.0 Units mg/L mg/L mg/L ug/L pC ilL pCi/L pC ilL ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L %REC %REC %REC %REC MDC -Minimum detectable concentration Report Date: 08/01 /11 Collection Date: 07/06/11 07:50 DateReceived: 07/08/11 Matrix: Aqueous MCU Qualifier RL QCL Method Analysis Date I By D 1 A4500-CI B 07/11/1113:31/wc 0.1 E353.2 07/12/11 14:07/ dc 10 A2540 C 07/08/11 16:22/1mc 0.30 E200.8 07/11/11 10:471 sml E900.1 07/18/11 13:13/ ep E900.1 07/18/1113:13/ep E900.1 07/18/11 13:13/ ep 20 SW8260B 07/14/11 15:47/ jlr 1.0 SW8260B 07/14/11 15:47/ jlr 1.0 SW8260B 07/14/11 15:47/ jlr 100 SWB260B 07/14/1115:12/jlr 1.0 SW8260B 07/14/11 15:47/ jlr 20 SW8260B 07/14/11 15:47/ jlr 1.0 SW8260B 07/14/11 15:47/ jlr 1.0 SW8260B 07/14/11 15:471 jlr 1.0 SW8260B 07/14/11 15:471 jlr 1.0 SW8260B 07/14/11 15:47/ jlr 80-120 SW8260B 07/14/11 15:471 jlr 70-130 SW8260B 07/14/11 15:471 jlr BO-120 SWB260B 07/14/11 15:471 jlr 80-120 SWB260B 07/14/11 15:471 jlr MCL -Maximum contaminant level. ND -Not detected at the reporting limit. D -RL increased due to sample matrix. Page 5 of 20 EN:RGY ; .... !--.()IV\IOI.:I· '.J www.energylab.com Atu/fIkM~SIIIu 1m Halena, MT 877 ·472-0711 • Billings, MT BOD· 735·4489 • Casper, WY 881·235-8515 Gillette, WY 888·886·7175 • Rapid City, SD 888·612·1225 • College Station, TX 888-610·2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: LablD: Denison Mines USA Corp July Monthly Groundwater 2011 Cll070274-004 Client Sample ID: MW-30 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N METALS· DISSOLVED Selenium Report Definitions: Rl -Analyte reporting limit. QCL -Quality control limit. Result 127 17 32.4 D -Rl increased due to sample matrix. Units mg/L mg/l ug/l Report Date: 08/01/11 Collection Date: 07105/11 11 :30 DateRecelved: 07108/11 Matrix: Aqueous MCU Qualifier RL QCL Method Analysis Date I By A4500-CI B 07/11/11 13:36 I wc 0 E353.2 07/12/11 14:09 I dc 5.0 E200.B 07/13/11 12:39 I sml MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 6 of 20 EI\ERGY 1\1 )I./\I( ),t.· lIWIW.energylab.com AM/fIkMll""-" IISI Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 888-188-7175 • Rapid City, SO 888-&72-1225 • College Station, 1X 888-610-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab ID: Denison Mines USA Corp July Monthly Groundwater 2011 C11070274-005 Client Sample ID: MW-31 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N Sulfate PHYSICAL PROPERTIES Solids, Total Dissolved TDS @ 180 C Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 148 22 532 1280 D -Rl increased due to sample matrix. Units mg/l mg/l mg/l mg/l Report Date: 08/01/11 Collection Date: 07/05/11 14:00 DateReceived: 07/08/11 Matrix: Aqueous MCU Qualifier Rl QCl Method Analysis Date I By A4500-CI B 07/11/1113:42/wc D E353.2 07/12/1114:19/dc D 10 A4500-S04 E 07/26/11 15:491 Ijl 10 A2540 C 07/08/11 16:221 Imc MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 7 of 20 EN:RGY /\'-;"JI(-,jGI<i' ., www.energylab.com AMIyfJaI~SIIu 1m Helena, MT 877·472·0711 • Billings, MT 800·735·4489 . Casper, WY 888·235·1515 Glllatte, 'NY .IB·I88·7175 • Rapid City, SO 888·172·1225 • College Station, 1X 881-610·2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: LablD: Denison Mines USA Corp July Monthly Groundwater 2011 C11070274-006 Client Sample 10: MW-65 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N Sulfate PHYSICAL PROPERTIES Solids, Total Dissolved TDS @ 180 C Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 145 21 536 1300 D -Rl increased due to sample matrix. Units mg/l mg/l mg/l mg/l Report Date: 08/01 /11 Collection Date: 07105/11 14:00 DateReceived: 07108/11 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date I By A4500-CI B 07/11/1113:46/wc D E353.2 07/1211114:22/dc D 10 A4500-S04 E 07/26/11 16:04 1 Ijl 10 A2540 C 07/08/11 16:2211mc MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 8 of 20 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-labs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer ORGANIC ANALYTICAL REPORT Client: Denison Mines Project: July Monthly Ground Water 2011 Lab Sample ID: 1107136-002A Client Sample ID: Trip Blank Collection Date: 7/6/2011 Received Date: 7/8/2011 1000h Analytical Results Analyzed: 7/912011 0021h Units: Ilg/L Dilution Factor: 1 Compound Tetrahydrofuran Surr: 1,2-Dichloroethane-d4 Surr: 4-Bromofluorobenzene Surr: Dibromofluoromethane Surr: Toluene-d8 Contact: Jo Ann Tischler Method: SW8260C VOAs by GC/MS Method 8260C/5030C CAS Reporting Analytical Number Limit Result Qual 109-99-9 1.00 < 1.00 17060-07-0 77-144 119 460-00-4 80-123 106 1868-53-7 80-124 103 2037-26-5 80-125 97.6 Report Date: 7/12/2011 Page 5 of 15 All analyses applicable to the CWA, SDWA, and ReRA arc pcrfoLlllcd in accordance to NELAC protocols Pertinent sampling infollTlation is located on the attached Cac. This report is provided for the exclusive use of the addressee. Privileges of subsequenlllsc of the name of this company or any member of its staff, or reproduction of this report in connection with the advertisement, promotion or sale ofaoy product or process, or in connection with the re-publication of this report for any purpose other than for the a.ddressee will be glllnted only on contact. This company accepts no responsibility except fOl the due pcrfomlBnce of inspection and/or analysis in good faith and according to the nllcs of the tradc Bnd ofscicnce. EN:RGY 1\ ~:::) I {,;. I ( ; 1-11 ..... .~ www.energylab.com AM/ftft;M~ Shu 1m Helena, MT 877·472·0711 • Billings, MT 800·735·4489 . Casper, WY 888·235·0515 Gillette, WY 866·186·7175 • Rapid City, SD 888·&72·1225 • College Station, 1X 888·690·2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab ID: July Monthly Groundwater 2011 C11070274-007 Client Sample ID: Trip Blank 6092 Analyses VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes, Total Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result NO NO NO NO NO NO NO NO NO NO 103 85.0 102 87.0 Units ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L %REC %REC %REC %REC Qualifier RL 20 1.0 1.0 1.0 1.0 20 1.0 1.0 1.0 1.0 80-120 70-130 80-120 80-120 Report Date: 08/01/11 Collection Date: 07/06/11 DateReceived: 07/08/11 Matrix: Aqueous MCL! QCL Method Analysis Date 1 By SW8260B 07/14/11 14:37 I jlr SW8260B 07/14/11 14:371 jlr SW8260B 07/14/11 14:371 jlr SW8260B 07/14/11 14:371 jlr SW8260B 07/14/11 14:371 jlr SW8260B 07/14/11 14:371 jlr SW8260B 07/14/11 14:371 jlr SW8260B 07/14/11 14:371 jlr SW8260B 07/14/11 14:371 jlr SW8260B 07/14/11 14:371 jlr SW8260B 07/14/11 14:371 jlr SW8260B 07/14/11 14:371 jlr SW8260B 07/14/11 14:371 jlr SW8260B 07/14/11 14:371 jlr MCL -Maximum contaminant level. NO -Not detected at the reporting limit. Page 9 of 20 EN:RGY At-.1.,\1 (.J~I • l www.energylab.com AM/yIk:M EIAIIIuI SiIu 'flU Helena, tIT 877·472-0711 • Billings, MT 800·735·4489 • Casper, WY 888·235·0515 Gillette, WY 816·&88·7175 • Rapid City, SD 888·&12·1225 • College Station, TX 888·610·2218 LABORATORY ANALYTICAL REPORT Prepared by Casper. WY Branch Client: Project: Lab ID: Denison Mines USA Corp July Monthly Groundwater 2011 C11070274-008 Client Sample ID: Temp Blank Analyses PHYSICAL PROPERTIES Temperature Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 3.2 Qualifier RL Report Date: 08/01/11 Collection Date: 07106/11 DateReceived: 07108/11 Matrix: Aqueous MCL! QCL Method Analysis Date 1 By E170.1 07/08/11 09:301 kbh MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 10 of 20 American West A r. tI. I 1/ T, ( A I 1.6:1 '.l .q It. r 0 Fl i l <; 463 West 3600 South Salt Lake City, UT 84115 Phone: (80 I) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-labs.com web: www.awal-Iabs.com Kyle F. Gross Laboratory Director Jose Rocha Jo Ann Tischler Denison Mines 1050 17th Street, # 950 Denver, CO 80265 TEL: (303) 389-4132 RE: July Monthly Ground Water 2011 Dear Jo Ann Tischler: Lab Set ID: 1107136 American West Analytical Laboratories received 2 sample(s) on 7/8/2011 for the analyses presented in the following report. All analyses were performed in accordance to The NELAC Institute protocols unless noted otherwise. American West Analytical Laboratories is certified by The NELAC Institute in Utah and Texas; and is state certified in Colorado and Idaho. Certification document is available upon request. If you have any questions or concerns regarding this report please feel free to call. The abbreviation "SUff" found in organic reports indicates a surrogate compound that is intentionally added by the laboratory to determine sample injection, extraction, and/or purging efficiency. The "Reporting Limit" found on the report is equivalent to the practical quantitaion limit (PQL). This is the minimum concentration that can be reported by the method referenced and the sample matrix. The reporting limit must not be confused with any regulatory limit. Analytical results are reported to three significant figures for quality control and calculation purposes. QA Officer Thank You, F . Digitally signed by Kyle F. Gross Kyle Gross Approved by: DN: cn=Kyle F. Gross. o=AWAL, ou=AWAL, email=kyle@awal- labs.com, c=US Dale: 2011 07 12 10:58:07 .{l6'DO' Laboratory Director or designee Report Date: 7112/2011 Page 1 of15 All analyses applicable to the CWA. SDWA, and RCRA arc pcrfonncd in accordance to NELAC ploloeols Peltinenl sampling information is localed on thc attached COCo This report is provided fa .. the exclusive usc of the addressee. Privileges of subsequcnt use of the name or this company or any member of its staff, or rcproduction of this report in connection with thc advertisement, promotion or sale of any product or process, or in connection with the Ie-publication of this report fOI any Pl1l'Pose other than for the addressee will be granted only on cOlllac!.., This company accepts no responsibility except fOl the due performance of inspection and/or analysis in good faith and according to thc mlcs of the trade and of science 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-labs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer SAMPLE SUMMARY Client: Project: Lab SetID: Date Received: Denison Mines July Monthly Ground Water 2011 1107136 7/8/2011 1000h Lab Sample ID Client Sample ID Date Collected 1l07136-001A MW-ll 7/6/2011 1215h 1107136-002A Trip Blank 7/6/2011 Contact: Jo Ann Tischler Matrix Analysis Aqueous VOA by GC/MS Method 8260C/5030C Aqueous VOA by GC/MS Method 8260C/5030C Report Date: 7112/2011 Page 2 of 15 All analyses applicable to the CWA, SDWA, and RCRA arc perfolmed in accordance to NELAC protocols. Pertinent sampling infonnation ;s located on the attached CDC. This report is provided for the exclusive lise of the addressee. Privileges of subsequent use of the name orthis company or any member of its staff, or reproduction of this report in connection with the advertisement, promotion or sale of any product or process, or in connection with the rc-publicillion of this report for /lny purpose ather than (or Ihe addressee will be granted only on contact This company accepts no responsibility except for the due performance of inspection and/or analysis in good faiih and according 10 the rules of the trade and of science 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer Volatile Case Narrative Client: Contact: Denison Mines Jo Ann Tischler Project: Lab Set ID: Sample Receipt Information: Date of Receipt: Date(s) of Collection: Sample Condition: C-O-C Discrepancies: Method: Analysis: July Monthly Ground Water 2011 1107136 7/8/2011 7/6/2011 Intact None SW-8468260C/5030C Tetrahydrofuran General Set Comments: Tetrahydrofuran was not observed above reporting limits. Holding Time and Preservation Requirements: All samples were received in appropriate containers and properly preserved. The analysis and preparation of all samples were performed within the method holding times following the methods stated on the analytical reports. Analytical QC Requirements: All instrument calibration and calibration check requirements were met. All internal standard recoveries met method criterion. Batch QC Requirements: MB, LCS, MS, MSD, RPD, and Surrogates: Method Blanks (MBs): No target analytes were detected above reporting limits, indicating that the procedure was free from contamination. Laboratory Control Sample (LCSs): All LCS recoveries were within control limits, indicating that the preparation and analysis were in control. Matrix Spike 1 Matrix Spike Duplicate (MS/MSD): All percent recoveries and RPDs (Relative Percent Differences) were inside established limits, indicating no apparent matrix interferences. Surrogates: All surrogate recoveries were within established limits. Corrective Action: None required. Report Date: 7112/2011 Page 3 of15 All analyses applicable fa the CWA, SDWA, and RCRA arc pcrfOlmcd in accordance to NELAC protocols. Pertinent sampling infOlTllation is located on the attached CDC This report is provided for the exclusive use of the addressee Plivilcgcs of subsequent usc of the name of this company or any member of its staff. or reproduction of this report in connection With the advertisement. promotion or sale of any product or process, or in connection with the Ie-publication oFthis rtport for any purpose other Ihan for the addressee win bc granted only on contact This company accepts no responsibility except for the due pcrfomlance of inspection andlol .-nalysis in good faith and according to the mles of the trade and ofscicncc ANt..lYT:CAl Client: Denison Mines Lab Set ID: 1107136 Project: July Monthly Ground Water 2011 Sample ID Analyte LCS VOC 0708118 Tetrahydrofuran LCS VOC 0708118 Surr: 1,2-Dichloroethane-d4 LCS VOC 0708118 Surr: 4-8romofluorobenzene LCS VOC 0708118 Surr: Dibromofluoromethane LCS VOC 0708118 Surr: Toluene-d8 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686, Toll Free: (888) 263-8686, Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com, web: www.awal-labs.com QC SUMMARY REPORT Contact: Jo Ann Tischler Dept: MSVOA QC Type: LCS Amount Original Units Method Result Spiked Amount %REC Limits Ilg/L SW8260C 15.4 20.00 0 77.2 43-146 %REC SW8260C 57.0 50.00 114 69-132 %REC SW8260C 49.5 50.00 99.0 85-118 %REC SW8260C 51.6 50.00 103 80-120 %REC SW8260C 48.3 50.00 96.5 81-120 %RPD RPD Limit Kyle F. Gross Laboratory Director Jose Rocha QAOfficer Qual Date Analyzed 7/8/2011 1707h 7/8/2011 1707h 7/8/2011 1707h 7/8/2011 1707h 7/8/2011 1707h Report Date: 7112/20 1 1 Page 6 0 f 1 5 All analyses applicable to the CWA. SDW A, and RCRA are performed in accordance to NELAC protocols. Pertinent sampling information is located on the attached COc. This report is provided for the exclusive use ofrhe addressee. Privileges of subsequent use of the name of this company or any member of its staff. or reproduction of this report in connection with the advertisement, promotion or sale of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility except for the due performance of inspection and/or analysis in good faith and according to the rules of the trade and of science. American West A""At·l ICAl lAI:.i':'RATORI[S Client: Denison Mines Lab Set ID: 1107136 Project: July Monthly Ground Water 2011 Sample ID Analyte MB VOC 070811B Tetrahydrofuran MB VOC 070811B SUIT: 1,2-Dichloroethane-d4 MB VOC 070811B SUIT: 4-Bromofluorobenzene MB VOC 07081lB SUIT: Dibromofluoromethane MB VOC 070811B SUIT: Toluene-d8 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686, Toll Free: (888) 263-8686, Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com, web: www.awal-Iabs.com Units ~g!L %REC %REC %REC %REC QC SUMMARY REPORT Amount Method Result Spiked SW8260C < 1.00 SW8260C 57.4 50.00 SW8260C 52.4 50.00 SW8260C 51.4 50.00 SW8260C 49.1 50.00 Contact: Dept: QC Type: Original Jo Ann Tischler MSVOA MBLK Amount %REC Limits 115 69-132 105 85-118 103 80-120 98.2 81-120 %RPD RPD Limit Kyle F. Gross Laboratory Director Jose Rocha QAOfficer Qual Date Analyzed 7/8/2011 I 744h 7/8/2011 I 744h 7/8/2011 1744h 7/8/2011 1744h 7/8/2011 1 744h Report Date: 7112/2011 Page 7 of 15 All analyses applicable to the CWA, SDWA, and RCRA arc performed in accordance to NELAe protocols. Pertinent sampling information is located on the attached COCo This report is provided for the exclusive use of the addressee. Privileges of subsequent use of the name of this company or any member aries staff, or reproduction of this report in connection with the advertisement, promotion or sale of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility except for the due performance of inspection andior analysis in good faith and according to the rules of the trade and of science. American West .A t.'A "'T ( ... L,t.eO Jl,..TOf?H Client: Denison Mines Lab Set ID: 1107136 Project: July Monthly Ground Water 2011 Sample ID Analyte IID7136-001AMS Tetrahydrofuran 1107136-001AMS SUIT: 1,2-Dichloroethane-d4 1107136-001AMS SUIT: 4-Bromofluorobenzene 1107136-001AMS SUIT: Dibromofluoromethane 1107136-001AMS SUIT: Toluene-d8 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686, Toll Free: (888) 263-8686, Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com, web: www.awal-Iabs.com QC SUMMARY REPORT Contact: Dept: Jo Ann Tischler MSVOA QC Type: MS Amount Original Units Method Result Spiked Amount %REC Limits !!glL SW8260C 20.3 20.00 0 102 43-146 %REC SW8260C 60.6 50.00 121 77-144 %REC SW8260C 49.8 50.00 99.5 80-123 %REC SW8260C 53 .0 50.00 106 80-124 %REC SW8260C 47.7 50.00 95.3 80-125 %RPD RPD Limit Kyle F. Gross Laboratory Director Jose Rocha QAOfficer Qual Date Analyzed 7/9/2011 0040h 7/9/2011 0040h 7/9/2011 0040h 7/9/2011 0040h 7/9/2011 0040h Report Date: 7112/2011 Page 8 ofl5 ALI analyses applicable to the CWA, SDWA, and RCRA are performed in accordance to NELAC protocols. Pertinent sampling infollI1ation is located on the attached COC. This report is provided for the exclusive use of the addressee. Privileges of subsequent use of the name arthis company or any member of its staff, or reproduction of this report in connection with the advertisement, promotion or sale of any product or process, or in connection with the re-publication of this report for 8Ily purpose other than for the addressee will be granted only on contact. This company accepts no responsibility except for the due perfonnance of inspection and/or analysis in good faith and according to the rules of the trade and of science. American West A~ALvT,C"'l lABORATORiI:S Client: Denison Mines Lab Set ID: 1107136 Project: July Monthly Ground Water 2011 Sample ID Analyte l107136-001AMSD Tetrahydrofuran l107136-001AMSD SUIT: 1,2-Dichloroethane-d4 1107136-001AMSD SUIT: 4-Bromofluorobenzene 1107136-001AMSD SUIT: Dibromofluoromethane 1107136-001AMSD SUIT: Toluene-d8 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686, Toll Free: (888) 263-8686, Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com. web: www.awal-labs.com QC SUMMARY REPORT Contact: Dept: Jo Ann Tischler MSVOA QC Type: MSD Amount Original Units Method Result Spiked Amount %REC Limits IJ.g/L SW8260C 20.3 20.00 0 102 43-146 %REC SW8260C 60.6 50.00 121 77-144 %REC SW8260C 49.4 50.00 98.8 80-123 %REC SW8260C 53 .7 50.00 107 80-124 %REC SW8260C 48.1 50.00 96.2 80-125 %RPD 0.0984 RPD Limit 25 Kyle F. Gross Laboratory Director Jose Rocha QA Officer Qual Date Analyzed 7/9/2011 0059h 7/9/2011 0059h 7/9/2011 0059h 7/9/2011 0059h 7/9/2011 0059h Report Date: 7112/2011 Page 9 of 15 All analyses applicable to the CWA. SDWA, and ReRA are performed in accordance to NELAC protocoLs. Pertinent sampling information is located on the attached COCo This report is provided for the exclusive use of the addressee. Privileges of subsequent use of the name of chis company or any member of its staff, or reproduction of this report in connectio[] with the advertisement, promotion or sale of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility except for the due performance of inspection and/or analysis in good faith and according to the rules of the trade and of science. Data Path Data File Aeq On Operator Sample Mise ALS Vial Qu antitation Report C:\msdchem\I\DATA\JULII-C\08JUL11A\ K86L1361.D a ~ul 2011 6 :03 pm 1107136-0011>. SAMP 5 .0ML 20F3 6 Sample Multiplier: 1 Quant Time : Ju1 11 10:43 :57 2011 Quant Method C :\MSDCH~M\1\METHODS\AFUL LW_35 .M Quant Title VOA Cal~bration QLast Update Thu ~ul 07 16 :15:38 2011 Response v i a Initial Calibration lQT Reviewed} Abundance 1050000 TIC' KB6L1361 .D\data.ms 1000000 950000 900000 850000 800000 750000 700000 650000 600000 550000 500000 450000 400000 350000 300000 250000 200000 150000 "0000 50000 II I ' 8 j j I ~ j ~ ! J • • ! ;, ~ j Time-> O'~~~~~~~r-~~~~~~r-~~~~~~~~~~~~~T'" 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10,00 10.50 11.00 11.50 AFULLW_35 .M Mon Ju1 11 11 :02 :28 2011 Data Path Data File Aeq On Operator Sample Mise ALS Vial Quant Time: Quant Method Quant Title Q1ast Update Response via Abundance 950000 900000 850000 800000 750000 700000 650000 600000 550000 500000 450000 400000 350000 300000 250000 200000 150000 100000 50000 Quantitation Report C:\msdchem\1\OATA\JU111-C\08JU111A\ 10611362.0 9 Jul 2011 12:21 am 1l07136-002A SAMP 5.0M1 10F1 26 Sample Multiplier: 1 Jul 11 10:52:27 2011 C:\MSDCHEM\1\METHODS\AFU11W_35.M VOA Calibration Thu Jul 07 16:15:38 2011 Initial Calibration (QT Reviewed) TIC: L06L 1362.D\data.ms CIt "l. " Q) ~ lii ~ e E 11 e ." g 0 '5 N. E e 5 .a OJ 0 5 (/) I Time-> 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 910 9.50 10.00 10:50 11.00 11 .50 AFU1LW_35.M Mon Jul 11 11:12:28 2011 Report Date: 7112/2(j'!3lgEp'ege111 of 15 Data Path Data File Aeq On Operator Sample Mise ALS Vial Quant Time: Quant Method Quant Title QLast Update Response via Abundance 1400000 1300000 1100000 1000000 800000 700000 600000 500000 400000 300000 Quantitation Report C:\msdehem\1\DATA\JUL11-C\08JUL11A\ K83LCS20.D 8 Jul 2011 5:07 pm LCS VOC 070811B LCS SEE COVERSHEET FOR ID AND AMOUNTS 3 Sample Multiplier: 1 Jul 08 17:20:53 2011 C:\MSDCHEM\1\METHODS\AFULLW_35.M VOA Calibration Thu Jul 07 16:15:38 2011 Initial Calibration (QT Reviewed) TIC: K83LCS20.D\data.ms '" ~ " c: ~ 0 >-5 (J) g ~ .8 e g II: CI >-!!l E :§ 0 :c u AFULLW_35.M Mon Jul 11 10:57:46 2011 Data Path Dat.a file Aeq On Operator Sample Mi se ALS Vi.al Ouantitation Report C :\msdchem\1\DATA\JULI1-C\OSJUL11A\ KS5LMBLK.D 8 Ju1 2011 5 :44 pm MB Vex:. 0708113 MBLK 5 .0ML 5 Sample Multiplier: 1 Quant. Time: Jul 11 10:43 :23 2011 Quant Method C :\MSDCHEM\1\METHODS\AfULLW_35 .M Quant Title VOl>. Calibration QLast Update Thu Ju! 07 16 :15 :38 2011 Response via Init.ia1 Calibration (QT Reviel<led) Abundance TIC' K85LMBLK.Dldata ms 1000000 950000 900000 850000 800000 750000 J I .i 700000 650000 600000 550000 500000 450000 400000 350000 300000 250000 200000 150000 100000 50000 Time··> Ol~~~~~~~~~~~~~~~~~~~~~r-~~~~~~,", 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50 AfULLW_35 .M Mon Ju1 11 10:58:21 2011 Rcpon Dale: 7f1212l1ll19q~g<.413 of1 S Data Path Data File Aeq On Operator Sample Mise ALS Vial Quant Time: Quant Method Quant Title QLast Update Response via Quantitation Report C:\msdehem\1\DATA\JUL11-C\08JUL11A\ L07S1361.D 9 Jul 2011 12:40 am 1l07136-001AMS MS 5.0ML 30F3 27 Sample Multiplier: 1 Jul 09 00:52:15 2011 C:\MSDCHEM\1\METHODS\AFULLW_35.M VOA Calibration Thu Jul 07 16:15:38 2011 Initial Calibration (Not Reviewed) Abundance 1 TIC: L07S1361.Dldata.ms 1250000 1200000 1150000 1100000 1050000 1000000 950000 900000 850000 800000 750000 650000 600000 550000 500000 450000 400000 350000 300000 200000 ~ ., 1 150000 co ] l :§l ~ 1il ~ 19 100000 E ~""., 0 w 05 E ~ ] III Time-> AFULLW_35.M Mon Jul 11 11:00:00 2011 " (/) E Report Date: 711 2/2{i' rllg Ep"age'll 4 ofl5 Data Path Data File Acq On Operator Sample Mise ALS Vial Quant Time: Quant Method Quant Title QLast Update Response via Abundance 1150000 1100000 950000 900000 650000 750000 700000 650000 600000 550000 500000 450000 400000 350000 300000 250000 200000 150000 rrime--> Quantitation Report C:\msdehem\1\DATA\JULll-C\OBJUL11A\ LOBD1361.D 9 Jul 2011 12:59 am 1l07136-001AMSD MSD 5.0ML 30F3 27 Sample Multiplier; 1 Jul 09 01:11;05 2011 C:\MSDCHEM\1\METHODS\AFULLW_35.M VOA Calibration Thu Jul 07 16:15:38 2011 Initial Calibration (Not Reviewed) TIC: L06D1361.Dldata.ms E Ii I ~ I en ~ "., ~ .SJl~ OJ ~jg ]-'!21ii W ~5 ] AFULLW_3S.M Mon Jul 11 11:00:33 2011 10.50 11 .00 11.50 Report Date: 711 2/2ij]'ljgEpftge'll 5 of 15 American West Analytical Laboratories WORK ORDER Summary Work Order: 1107136 Client: Denison Mines Page 1 of 1 7/81201 1 Client ID: DEN tOO Contact: fo Ann Tischler Project: July Monthly Ground Water 20 I] QC Level: LEVEL TIL WOType: Project Comments: No Hard Copies (UL). QC 3 & Summary. EDD-CSV. Report Tm~ to I ~lglL.; Sample ID Client Sample ID Collected Date Received Date Date Doe Matrix Test Code Sel Storage 1107136·001A MW-1J 7/612011 1215h 7/812011 1000h 712212011 Aqueous 8260-W ~ VOCFridgc 3 1107136·002A Trip Blank 71612011 8260-W ~ VOCFddge OENISOJ)~ MINES CHAIN OF CUSTODY lIo)/>CI Sheet 1 of 1 Samples Shipped to: American West Analytical Lab 463 West 3600 South Contact: Ryan Palmer or David Turk Ph: 435 678 2221 Salt Lake City, Ut 84115 rpalmer@denisonmines.com dturk@denisonmines.com Chain of Custody/Sampling Analysis Request Project July Monthly Ground Water 2011 Sample 10 MW-11 Trip Blank Date Collected 7/6/2011 7/6/2011 Samplers Name Samplers Signature Tanner Holliday Time Collected Laboratory Analysis Requested 1215 THF Please notify Ryan Palmer or Tanner Holliday of Reciept tempature on these samples Immediately! Thank you. ./'" Relinquished By:{Signature) DatelTime VBY:(Signature) DatelTime ~)~J-f/tt; 7/7/2011 110..0 Relinquished By:(Signature) V' Received By:(Signature) Da~ime ~ yj{ ~ t-/ /t:l 0]) /' \I / Lab Set ID: I ( 0 7 I") ~ SamIJIes Were: COC Tape Was: Container T~e: No. Rec. .Q(Shipped By: ~ vt~S Present on Outer Package ~ WAL Suoplied Plastic o Hand Delivered ,6Yes DNo DN/A D A WiY... Supplied Clear Glass D Ambient Unbroken on Outer package D A W AL SUwlied Amber Glass ;oChilled ,&"Yes DNo DN/A D A WAL SUP1)li~=crroX Vials Temperature tt.lJ °C Present on Sample D Amber D Clear D Rea ace D No Headspace Rec. Broken/Leaking .k!Yes DNa DN/A DYes DNo .f.(N/A D Non A WAL Supplied Cont~ Notes: !;,",A~ L.v1~ kL~1 \t f--t--i!$ Unbroken on Sarijple Notes: ~ / v,'c.../ DYes DNo AJN/A Properly Preserved riVes DNa DN/A Notes: \ Notes: I Rec. Within Hold li\'es DNo Discrepancies Between Labels and CDC DYes AT No Notes: /\ Notes: r \ Bottle Ty~e Preservative All pHs OK Ammonia pH <2 H2SO4 COD -.TT <? J..J.SO. Cyanide PH>12 NaOH ---Metals pH <2 RNO, -............ N02 & N03 pH <2 H2SO4 r---:-. Nutrients pH <2 H2SO4 ~ r-- O&G pH<2HCL ----Phenols pH <2 H2SO4 ~ Sulfide pH> 9NaOH, ZnAC -----TKN pH <2 H2SO4 ---------TOe pH <2 H3P04 ~ TP04 pH <2 H2SO4 ~ TPH pH <2 HCL ~ ......... ........ ~ ............... i'---. .. ) -.. . . , , .. • h _. '" 2) Pour sample from Lid gently over wide range pH paper 3) Do Not dip the pH paper in the sample bottle or lid 4) If sample is not preserved properly list its extension and receiving pH in the appropriate column above 5) Flag CDC and notify client for further instructions 6) Place client conversation on CDC 7) Samples may be adjusted at client request EN:RGY /\t.!O"J',1 CI~''---'J www.energylab.com AIu/ytiulfzcllliHK:,SkJClIIS2 Helena, MT 877-472-0711 • BllllnKs, MT 800-731-4489 • Casper, WY 888-235-0515 Gillette, WY 18B-B88-7115 • Rapid City, so 888-672-1225 • Colluga station, TX 888-6ID-2218 ANAL VTICAL SUMMARY REPORT August 01, 2011 Denison Mines USA Corp 6425 S Hwy 191 Blanding, UT 84511 Workorder No.: C11070274 Quote 10: C1640 -pac Wells Project Name: July Monthly Groundwater 2011 Energy Laboratories, Inc. Casper WY received the following 8 samples for Denison Mines USA Corp on 7/8/2011 for analysis. Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test C11070274-001 MW-11 07106/11 12 :15 07108/11 Aqueous Metals by ICP/ICPMS, Dissolved C11070274-002 MW-25 07/06/11 12:30 07108/11 Aqueous Same As Above C11070274-003 MW-26 07106/11 7:50 07/08/11 Aqueous Metals by ICP/ICPMS, Dissolved Chloride Nitrogen, Nitrate + Nitrite Gross Alpha minus Rn222 and Uranium Solids, Total Dissolved SW8260B VQCs, Standard List C11070274-004 MW-30 07/05/11 11 :30 07108/11 Aqueous Metals by ICP/ICPMS, Dissolved Chloride Nitrogen, Nitrate + Nitrite C11070274-005 MW-31 07105/11 14:00 07108/11 Aqueous Chloride Nitrogen, Nitrate + Nitrite Solids, Total Dissolved Sulfate C11070274-006 MW-65 07105/11 14:00 07108/11 Aqueous Same As Above C11070274-007 Trip Blank 6092 07106/11 0:00 07/08/11 Aqueous SW8260B VOCs, Standard List C11070274-008 Temp Blank 07106/11 0 :00 07108/11 Aqueous Temperature This report was prepared by Energy Laboratories, Inc., 2393 Salt Creek Hwy., Casper, WY 82601. Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report, the QA/QC Summary Report, or the Case Narrative. The results as reported relate only to the item(s) submitted for testing. All samples are reported on an as received basis unless otherwise indicated. Samples corrected for dry weight indicate units that have -dry appended. If you have any questions regarding these test results, please call. Report Approved By: ~~i) uJcJ.~ Reporting Supervisor Digitally signed by Stephanie Waldrop Date: 2011 .08.01 08:31 :58 -06:00 Page 1 of 20 www.energytab.com AMJyIIaI ERfIIIrIa SiJJA IISZ Helena, MT 817-472-0711 -Billings, MT 800-735-4481 -Casper, WY 818-235-0515 Gillette WY8&&-18&-7175 -Ra Id Ci ,so 888-672-1225 -College Station, TX888-69D-2218 CLIENT: Denison Mines USA Corp Project: July Monthly Groundwater 2011 Report Date: 08/01/11 Sample Delivery Group: C11070274 CASE NARRATIVE ORIGINAL SAMPLE SUBMITIAL(S) All original sample submittals have been returned with the data package. SAMPLE TEMPERATURE COMPLIANCE: 4"C (±2"C) Temperature of samples received may not be considered properly preserved by accepted standards. Samples that are hand delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun. GROSS ALPHA ANALYSIS Method 900.0 for gross alpha and gross beta is intended as a drinking water method for low TDS waters. Data provided by this method for non potable waters should be viewed as inconsistent. RADON IN AIR ANALYSIS The desired exposure time is 48 hours (2 days). The time delay in returning the canister to the laboratory for processing should be as short as possible to avoid excessive decay. Maximum recommended delay between end of exposure to beginning of counting should not exceed 8 days. SOIL/SOLID SAMPLES All samples reported on an as received basis unless otherwise indicated. ATRAZINE, SIMAZINE AND PCB ANALYSIS Data for PCBs, Atrazine and Simazine are reported from EPA 525.2. PCB data reported by ELI reflects the results for seven individual Aroclors. When the results for all seven are ND (not detected), the sample meets EPA compliance criteria for PCB monitoring. SUBCONTRACTING ANALYSIS Subcontracting of sample analyses to an outside laboratory may be required. If so, ENERGY LABORATORIES will utilize its branch laboratories or qualified contract laboratories for this service. Any such laboratories will be indicated within the Laboratory Analytical Report. BRANCH LABORATORY LOCATIONS eli-b -Energy Laboratories, Inc. -Billings, MT eli-g -Energy Laboratories, Inc. -Gillette, WY eli-h -Energy Laboratories, Inc. -Helena, MT eli-r -Energy Laboratories, Inc. -Rapid City, SD eli-t -Energy Laboratories, Inc. -College Station, TX CERTIFICATIONS: USEPA: WY00002, Radiochemical WY00937; FL-DOH NELAC: E87641, Radiochemical E871 017; California: 02118CA; Oregon: WY200001 ; Utah: 3072350515; Virginia: 00057; Washington: C1903 ISO 17025 DISCLAIMER: The results of this Analytical Report relate only to the items submitted for analysis. ENERGY LABORATORIES, INC. -CASPER,WY certifies that certain method selections contained in this report meet requirements as set forth by the above accrediting authorities. Some results requested by the client may not be covered under these certifications. All analYSis data to be submitted for regulatory enforcement should be certified in the sample state of origin. Please verify ELI's certification coverage by visiting www.energylab.com ELI appreciates the opportunity to provide you with this analytical service. For additional information and services visit our web page www.energylab.com. Page 2 of 20 EN:RGY ;-'1 •. JI'/'I ! JI,': '. www.energyi8b.com AMITIIc.I ExuItMIu SIRu lin Helena, MT 877-472-0711 • BIllings, MY 800-135-4489 • Casper, WY 888-235-0515 Gillette, WY 81&-&88-7175 • Rapid City, SD a88-&12-1225 • College Station, TX 888-610-2218 QAlQC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: July Monthly Groundwater 2011 Analyte Count Result Units Method: A2540 C Sample 10: MBLKC Solids, Total Dissolved TDS@ 180 C Method Blank ND mg/L Sample 10: LCS1_ Laboratory Control Sample Sotids, Total Dissolved TDS @ lS0 C 989 mg/L Sample 10: Cll070256-008AMS Sample Matrix Spike Solids, Total Dissolved TDS @ 180 C 2270 mg/L Sample 10: Cll070274-006AOUP Sample Duplicate Solids, Total Dissolved TDS@ 180 C 1300 mg/L Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration Report Date: 08/01 /11 Work Order: Cll070274 RL %REC Low Limit High limit Run: BAL-l_ll070SC 4 Run: BAL-l_ll0708C 10 99 90 110 Run: BAL-l 11070SC - 10 103 90 110 Run: BAL-l_ll0708C 10 ND -Not detected at the reporting limit. RPO RPOLimlt Qual 0.0 Batch: R1479S1 07/0S/11 16:10 07/08/11 16:11 07/0S/11 16:16 07/08/11 16:22 10 Page 11 of 20 EN:RGY I\i·l)~.('f ~ I~I! '. www.energytab.com AMIftIW b"'-tlu SIIIe, 1m Helena, MT 877-472-0711 • Billinl$, MT 800·735-4489 • Casper, WY 881-235·0515 Gillatte, WY 816·686·7175 • Rapid City, SD 888·672·1225 • College Station, 1X 888-680·2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: July Monthly Groundwater 2011 Analyte Count Result Units Method: A4500·CI B Sample 10: MBlK9·7/11/2011 Chloride Sample 10: C11070274-006AMS Chloride Sample 10: C11070274-006AMSO Chloride Sample 10: lCS35·7/11/2011 Chloride Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration Method Blank ND mg/L Sample Matrix Spike 508 mg/L Sample Matrix Spike Duplicate 508 mg/L Laboratory Control Sample 3600 mg/L Report Date: 08/01/11 Work Order: C11070274 Rl %REC low limit High limit RPO RPOlimit Qual Batch: 7/11/2011-CL-TIR-W Run: TITRATION_110711A 07/11/1113:23 0.5 Run: TITRATION_110711A 07/11/11 13:50 1.0 103 90 110 Run: TITRATION_11 0711 A 07/11/11 13:51 1.0 103 90 110 0.0 10 Run: TITRATION_11 0711 A 07/11/11 13:55 1.0 102 90 110 ND -Not detected at the reporting limit. Page 12 of 20 EN:RGY ,.\1 .()I.;,r L, H, ~ -.,.energylab.com MMtIIaI~S/IJu lSI Helene, MT 877-472-0711 • Billings, 1fT 800-135-4488 • Casper, WY 888-235-0515 Gillette, WY 8IS-S8B-7175 • Rapid City, SD 818-872-1225 • CDilege StatiDn, 'IX 888-B90-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: July Monthly Groundwater 2011 Anafyte Count Result Units Method: A4500-S04 E Sample 10: MBLK-1_110726 Sulfate Sample 10: LCS-1_110726 Sulfate Sample 10: C11070274-005AMS Sulfate Sample 10: C11070274-005AMSO Sulfate Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration Method Blank ND mg/L Laboratory Control Sample 5100 mg/L Sample Matrix Spike 865 mg/L Sample Matrix Spike Duplicate 857 mg/L Report Date: 08/01/11 Work Order: C11070274 RL %REC Low Limit High Limit RPO RPOLimit Qual Batch: 11 0726_1_S04-TURB-W Run: TURB-2_110726A 07/26/11 15:36 O.B Run: TURB-2_11 0726A 07/26/11 15:39 100 106 90 110 Run: TURB-2_110726A 07/26/11 15:57 17 104 90 110 Run: TU RB-2_11 0726A 07/26/11 15:59 17 102 90 110 1.0 10 ND -Not detected at the reporting limit. Page 13 of 20 EN:RGY ,,- .... '~(-"::f.;~I \..);~J! ~ www.energylab.com Ao~1 £xuJItnc. smu 1m Helene, MT 817-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 81&-186-7175 • Rapid City, SD 888-172-1225 • College StatiDn, 1J( 888-680-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Report Date: 08/01/11 Project: July Monthly Groundwater 2011 Work Order: C11070274 Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual Method: E200.8 Batch: R148055 Sample 10: LRB Method Blank Run: ICPMS2-C_110713A 07/13/1111 :37 Selenium 0.0004 mg/L 0.0003 Sample 10: LFB Laboratory Fortified Blank Run: ICPMS2-C_110713A 07/13/1111 :40 Selenium 0.0538 mg/L 0.0010 107 85 115 Sample 10: C11070275-008CMS4 Sample Matrix Spike Run: ICPMS2-C_110713A 07/13/11 13:05 Selenium 0.0509 mg/L 0.0010 100 70 130 Sample 10: C11070275-008CMSO Sample Matrix Spike Duplicate Run: ICPMS2-C_11 0713A 07/13/11 13:08 Selenium 0.0546 mg/L 0.0010 108 70 130 7.1 20 Method: E200.8 Batch: R148735 Sample 10: LRB Method Blank Run: ICPMS2-C_11 0729A 07/29/11 11 :04 Manganese ND mg/L 3E-05 Sample 10: LFB Laboratory Fortified Blank Run: ICPMS2-C_11 0729A 07/29/11 11 :28 Manganese 0.0527 mg/L 0.0010 105 85 115 Sample 10: C11070760-o04BMS4 Sample Matrix Spike Run: ICPMS2-C_11 0729A 07/29/11 13:08 Manganese 0.052 mg/L 0.010 104 70 130 Sample 10: C11070760-004BMSO Sample Matrix Spike Duplicate Run : ICPMS2-C_11 0729A 07/29/1113:11 Manganese 0.052 mg/L 0.010 103 70 130 0.3 20 Method: E200.8 Batch: R147896 Sample 10: LRB Method Blank Run: ICPMS4-C_11 0711 A 07/11/1110:18 Uranium 1 E-05 mg/L 8E-06 Sample 10: LFB Laboratory Fortified Blank Run: ICPMS4-C_11 0711 A 07/11/11 10:22 Uranium 0.0534 mg/L 0.00030 107 85 115 Sample 10: C11070275-006AMS4 Sample Matrix Spike Run: ICPMS4-C_110711A 07/11/11 11 :27 Uranium 0.134 mg/L 0.00030 109 70 130 Sample 10: C11070275-006AMSO Sample Matrix Spike Duplicate Run: ICPMS4-C_11 0711 A 07/11/11 11 :32 Uranium 0.130 mg/L 0.00030 100 70 130 3.4 20 Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. MDC -Minimum detectable concentration Page 14 of 20 EN:RGY A~jOI,/\.rcl~.! ." www.energylab.com MMpIa/~SIIa 1m Helena, MT 877-472-0711 • Billings, MT 800-735-4488 • Casper, WY 888-235-0515 Gillette, WY 888-88&-7175 • Rapid City, SD 888-&12-1225 • College Station, 1J( 888-680-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: July Monthly Groundwater 2011 Analyte Count Result Units Method: E353.2 Sample 10: MBLK-1 Nitrogen, Nitrate+Nitrite as N Sample 10: LCS-2 Nitrogen, Nitrate+Nitrite as N Sample 10: LFB-3 Nitrogen, Nitrate+Nitrite as N Sample 10: C11070274-0030MS Nitrogen, Nitrate+Nitrite as N Sample 10: C11070274-0030MSO Nitrogen, Nitrate+Nitrite as N Qualifiers: RL -Analyte reporting limit. MDe -Minimum detectable concentration Method Blank ND mg/L Laboratory Control Sample 2.55 mg/L Laboratory Fortified Blank 1.94 mg/L Sample Matrix Spike 2.84 mg/L Sample Matrix Spike Duplicate 2.80 mglL Report Date: Work Order: RL %REC Low Limit High limit RPO Run: TECHNICON_110712A 0.06 Run: TECHNICON_110712A 0.10 102 90 110 Run: TECHNICON_11 0712A 0.10 99 90 110 Run: TECHNICON_11 0712A 0.10 102 90 110 Run: TECHNICON_110712A 0.10 99 90 110 1.4 ND -Not detected at the reporting limit. 08/01/11 C11070274 RPOLimit Qual Batch: R147990 07/12/11 11 :54 07/12/11 11 :56 07/12/11 12:11 07/12/11 14:12 07/12/1114:14 10 Page 15 of 20 EN:RGY .",ll( f~" I C. 1:1 • www.energy18b.com IiM/fIIaI EJaIIMu S/nu /152 Helena, MT 877-472-0711 • Billings, MT 800-735-4488 • Casper, WY 888-235-0515 Gillaite, WY 111-188-7175 • Rapid City, SD 888-172-1225 • College Station, TX 888-&80-221 8 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: July Monthly Groundwater 2011 Analyte Method: E900.1 Sample 10: MB-GA-04S4 Gross Alpha minus Rn & U Count Result 3 Method Blank -0.010 Gross Alpha minus Rn & U Precision (±) 0.3 Gross Alpha minus Rn & U MDC 0.4 Units pCi/L pC ilL pCi/L Sample 10: LCS-GA-04S4 Gross Alpha minus Rn & U Laboratory Control Sample Sample 10: Cll070290-009BMS Gross Alpha minus Rn & U Sample 10: Cll070290-009BMSO Gross Alpha minus Rn & U Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration 21.2 pC ilL Sample Matrix Spike 45.4 pCilL Sample Matrix Spike Duplicate 46.9 pCi/L Report Date: 08/01/11 Work Order: Cll070274 RL %REC Low Limit High Limit Run: G542M_ll 0713A Run: G542M_ll 0713A 101 70 130 Run: G542M_ll 0713A 92 70 130 Run: G542M_ll0713A 95 70 130 ND -Not detected at the reporting limit. RPO RPOLImit Qual 3.1 Batch: GA-0454 07/18/11 13:13 U 07/18/11 13:13 07/18/11 14:47 07/18/1114:47 22.8 U -Not detected at minimum detectable concentration Page 16 of 20 EN:RGY .~d . 'H,.,I ()) lit :, www.energylab.com AMIytJaI Exu/IMcI SInu 1m Helena, MT 877-472-0711 • Billings, MY 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 81&-&8&-7175 • Rapid City, SO 888-&72-1225 • Collega Station, TJ( 888-690-2218 QA/Qe Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Report Date: 08/01/11 Project: July Monthly Groundwater 2011 Work Order: C11070274 --- Analyte Count Result Units RL %REC Low Limil High Limit RPO RPOLImit Qual Method: SW8260B Batch: R148147 Sample 10: 14-Jul-11_LCS3 15 Laboratory Control Sample Run: GCMS2_11 0714B 07/14/11 10:34 Benzene 9.2 ug/L 1.0 92 70 130 Carbon tetrachloride 11 ug/L 1.0 106 70 130 Chloroform 9.7 ug/L 1.0 97 70 130 Chloromethane 9.1 ug/L 1.0 91 70 130 m+p-Xylenes 18 ug/L 1.0 88 70 130 Methyl ethyl ketone 80 ug/L 20 80 70 130 Methylene chloride 9.5 ug/L 1.0 95 70 130 Naphthalene 10 ug/L 1.0 99 70 130 o-Xylene 8.9 ug/L 1.0 89 70 130 Toluene 9.4 ug/L 1.0 94 70 130 Xylenes, Total 27 ug/L 1.0 89 70 130 Surr: 1,2-0ichlorobenzene-d4 1.0 100 80 120 Surr: Oibromofluoromethane 1.0 90 70 130 Surr: p-Bromofluorobenzene 1.0 101 80 130 Surr: Toluene-d8 1.0 88 80 120 Sample 10: 14-Jul-11_MBLK_6 15 Method Blank Run: GCMS2_11 0714B 07/14/11 11:43 Benzene NO ug/L 1.0 Carbon tetrachloride NO ug/L 1.0 Chloroform NO ug/L 1.0 Chloromethane NO ug/L 1.0 m+p-Xylenes NO ug/L 1.0 Methyl ethyl ketone NO ug/L 20 Methylene chloride NO ug/L 1.0 Naphthalene NO ug/L 1.0 o-Xylene NO ug/L 1.0 Toluene NO ug/L 1.0 Xylenes, Total NO ug/L 1.0 Surr: 1,2-0ichlorobenzene-d4 1.0 103 80 120 Surr: Oibromofluoromethane 1.0 80 70 130 Surr: p-Bromofluorobenzene 1.0 98 80 120 Surr: Toluene-d8 1.0 86 80 120 Sample 10: C11070274-003EMS 15 Sample Matrix Spike Run : GCMS2_110714B 07/14/11 16:22 Benzene 1800 ug/L 100 90 70 130 Carbon tetrachloride 1900 ug/L 100 97 70 130 Chloroform 2200 ug/L 100 96 70 130 Chloromethane 1600 ug/L 100 80 70 130 m+p-Xylenes 3500 ug/L 100 87 70 130 Methyl ethyl ketone 20000 ug/L 2000 99 70 130 Methylene chloride 1900 ug/L 100 94 70 130 Naphthalene 1600 ug/L 100 82 70 130 o-Xylene 1700 ug/L 100 87 70 130 Toluene 1800 ug/L 100 92 70 130 Xylenes, Total 5200 ug/L 100 87 70 130 Qualifiers: RL -Analyte reporting limit. ND -Not detecled at the reporting limit. MOC - Minimum detectable concentration Page 17 of 20 EN:RGY :\1.'_)11 .. "-1 :..J:" ! ". -.v.energyiab.com ~~SIlIuI82 Halena, MT 877-472-0111 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515 Gillatta, WY 81&-686-7175 • Rapid City, SD 888-112-1225 • College SllItion, TX 818-680-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Report Date: 08/01/11 Project: July Monthly Groundwater 2011 Work Order: C11070274 Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual Method: SW8260B Batch: R148147 Sample 10: C11070274-003EMS 15 Sample Matrix Spike Run: GCMS2_110714B 07/14/11 16:22 Surr: 1,2-Dichlorobenzene-d4 1.0 99 80 120 Surr: Dibromofluoromethane 1.0 88 70 130 Surr: p-Bromofluorobenzene 1.0 96 80 120 Surr: Toluene-d8 1.0 89 80 120 Sample 10: C11070274-003EMSO 15 Sample Matrix Spike Duplicate Run: GCMS2_110714B 07/14/11 16:57 Benzene 1800 ug/L 100 89 70 130 1.3 20 Carbon tetrachloride 1900 ug/L 100 93 70 130 4.6 20 Chloroform 2000 ug/L 100 87 70 130 8.3 20 Chloromethane 1600 uglL 100 79 70 130 2.0 20 m+p-Xylenes 3500 uglL 100 88 70 130 0.7 20 Methyl ethyl ketone 17000 ug/L 2000 85 70 130 15 20 Methylene chloride 1700 uglL 100 85 70 130 9.9 20 Naphlhalene 1900 ug/L 100 95 70 130 15 20 o-Xylene 1800 ug/L 100 88 70 130 1.8 20 Toluene 1800 ug/L 100 91 70 130 0.4 20 Xylenes, Total 5300 ug/L 100 88 70 130 1.1 20 Surr: 1,2-Dichlorobenzene-d4 1.0 98 80 120 0.0 10 Surr: Dibromofluoromethane 1.0 84 70 130 0.0 10 Surr: p-Bromofluorobenzene 1.0 94 80 120 0.0 10 Surr: Toluene-d8 1.0 88 80 120 0.0 10 Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. MDC -Minimum detectable concentration Page 18 of 20 EN:RGY " L I JI. /~ I ~ , I' , • www.energytab.com ~~S1r/U lat Helene, MT 877-472-0711 • Billings, MT 800-735-4489 . Casper, WY 888-235-8515 Gillette, WY 86&-688·7175 . Rapid City, SD 888-&72-1225 • College SllItion, TX 888-&90-2218 Workorder Receipt Checklist Denison Mines USA Corp III~III ill ~II ~III~~ I~~ I~IIIIIIII~IIIIIIIII C11070274 Login completed by: Debra Williams Reviewed by: BL2000\kschroeder Reviewed Date: 7/12/2011 Shipping container/cooier in good condition? Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Chain of custody present? Chain of custody signed when relinquished and received? Chain of custody agrees with sample labels? Samples in proper container/bottle? Sample containers intact? Sufficient sample volume for indicated test? All samples received within holding time? ContainerfTemp Blank temperature: Water -VOA vials have zero headspace? Water -pH acceptable upon receipt? Contact and Corrective Action Comments: Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 3.2'C On Ice Yes 0 Yes 0 Date Received: 7/8/2011 Received by: dw Carrier NDA name: No 0 No 0 No 0 No 0 No 0 No D No D No D No D No D No 0 No D Not Present D Not Present 0 Not Present 0 No VOA vials submitted D Not Applicable 0 MW-26 nitric preserved sample received with a pH of 7. Added 2 mLs HN03 for a final pH of <2. Page 19 of 20 "U Dl to CD N a ~ N a Chain of Custody and Analytical Request Record 'U#(''''7 ,e'P1£W-UUI' PLEASE PRINT JProvide as much information a_s_l>ossible.) Page _\_of_'_ Company Name: De.oi~O(\ M;(\~ Project Name, PWS, Permit, Etc. I Sample Origin \Jv..'--", M of\+h I~ ("("ou,nJ lAJO\.1-er ;lei II State: \Xl EPA/State Compliance: Yes 0" No 0 Report Mail Address: PO CO)( g Oq e,1Q..na :n~ u...,-g4.Sl\ Contact Name: Phone/Fax: Invoice Addr~ R~",t'I Po-.'l11~r Q3,S b78 xu.J -----+1 -:-In"""voice Contact & Phone: Sampler: (Please Print) -r.::-n n c: (" H" IJ,'J A a Email: Purchase Order: Quote/Bottle Order: ~Nn!. .5tN"'<' Special Report/Formats: Dow D EOO/EDT(Electronic Data) ~ o ~ ~otJ)~ ~tO;gol Q; ]i> ~ iU'm C(/)Ci'l en ~ 0:>= ~ 0> u:>°oc: ..... 4: (/)1·-:S2 o '-tOl c: ... Q.j$C"C ~I1W@[]@ W~@l1D~@ .. [ R Contact ELI prior to RUSH sample submittal for charges and scheduling -See Instruction Page Shi.!!!rd~by: -UnJ~.d~~ co~rJe(Sf~ t~OII-t.,( o POTWIWWTP Format: ____ _ o State: ___ _ o Other: ___ _ D LEVEL IV D NELAC SAMPLE IDENTIFICATION Collection Date - : :re·,? 51W\K W12 -10 ~~I~~ "E ... -> :::l w:;I(I):> za. ..... g>o ~ >1 (/) ColI~tion I MATRIX Time -w b-W -vJ -w ~-vJ I ~I I I I I I I I IJi 'f.. )( 1")( 1 ~ 1 X I ~ 1)( I X ~I I I 1')(1 I~ Ix I I I JXJ)( I 1')< ~I 1 1 1)(1)(1 1)( ReceMld bYl'Pi1m). Received by (p!in1). Custody Record ~~~~~~~~~~~~~~~~~ u c e co c: .... ::::l ~ 'E co u c co en u Comments: 5 H OatelT1me: Datefrtme: Re":!J'.tT&lnp ~·~,c Dnlce: ~N cu~~O:I~al ~ i" 011 Cooler Y ~ Intact N Signature N Match ~ ~ ~ I ~-~ ~~ ~ D. !!=.t 'O/Ol.7~ SIgnature: Signature; MUSTbe!r-------------------------------~~~~~--~~~--~~~~~----~ Sig nee:! Sample Disposal: Return to Client: Lab DIsposal: _-===--_ In certain circumstance$. samples submitted to Energy Laboratorie$, Inc. may be subcontracted toYer certified laboratories in order to complete the analysis requested. This serves as notice of this possibility~ All sub-contract data will be clearly notated on your analytical report. Visit our web site at www.enerovlab.com for additional information~ downloadable fee schedule~ forms. and links~ EN:RGY ._J\~(Jnj\ I GI~IL ~ www.energylab.com AIu/ylfa/ m.ur-ShIc. llU Halana, MT 877-472-0711 • Billings, MT eoG-735-4489 . Casper, WY 881-235-0515 Gillotte, WY 8&&-&88-7175 • Rapid City, SO 888-&12-1225 • Collega Sialion, 1X 888-&90-2218 August 10, 2011 Denison Mines USA Corp 6425 S Hwy 191 Blanding, UT 84511 WorkorderNo.: C11070824 ANALYTICAL SUMMARY REPORT Quote 10: C1640 -POC Wells Project Name: July Monthly Groundwater 2011 Energy Laboratories, Inc. Casper WY received the following 1 sample for Denison Mines USA Corp on 7/22/2011 for analysis. Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test C11070824-001 MW-35 07/20/11 10:35 07/22/11 Aqueous Metals by ICPIICPMS, Dissolved Th is report was prepared by Energy Laboratories, Inc., 2393 Salt Creek Hwy., Casper, WY 82601 . Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report, the QAIQC Summary Report, or the Case Narrative. The results as reported relate only to the item(s) submitted for testing. All samples are reported on an as received basis unless otherwise indicated. Samples corrected for dry weight indicate units that have -dry appended. If you have any questions regarding these test results, please call. Report Approved By: c3¥~ £) uJcJ.~ Reporting Supervisor Digitally signed by Stephanie Waldrop Date: 2011 .08.10 14:43:24 -06:00 Page 1 of 6 www.energylab.com AMIybI~"'m Helena, MT877-472-D711 • Billings, MT 800-735-4489 . Casper, WY 888-235-0515 Gillette, WY 86&-186-7175 • Ra Id City, so 88a-672-1225 • College Station, TX 888-69D-2218 CLIENT: Denison Mines USA Corp Project: July Monthly Groundwater 2011 Report Date: 08/10/11 Sample Delivery Group: C11070824 CASE NARRATIVE ORIGINAL SAMPLE SUBMITIAL(S) All original sample submittals have been returned with the data package. SAMPLE TEMPERATURE COMPLIANCE: 4"C (±2"C) Temperature of samples received may not be considered properly preserved by accepted standards. Samples that are hand delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun. GROSS ALPHA ANALYSIS Method 900.0 for gross alpha and gross beta is intended as a drinking water method for low TDS waters. Data provided by this method for non potable waters should be viewed as inconsistent. RADON IN AIR ANALYSIS The desired exposure time is 48 hours (2 days). The time delay in returning the canister to the laboratory for processing should be as short as possible to avoid excessive decay. Maximum recommended delay between end of exposure to beginning of counting should not exceed 8 days. SOIL/SOLID SAMPLES All samples reported on an as received basis unless otherwise indicated. ATRAZINE, SIMAZINE AND PCB ANALYSIS Data for PCBs, Atrazine and Simazine are reported from EPA 525.2. PCB data reported by ELI reflects the results for seven individual Aroclors. When the results for all seven are ND (not detected), the sample meets EPA compliance criteria for PCB monitoring. SUBCONTRACTING ANALYSIS Subcontracting of sample analyses to an outside laboratory may be required. If so, ENERGY LABORATORIES will utilize its branch laboratories or qualified contract laboratories for this service. Any such laboratories will be indicated within the Laboratory Analytical Report. BRANCH LABORATORY LOCATIONS eli-b -Energy Laboratories, Inc. -Billings, MT eli-g -Energy Laboratories, Inc. -Gillette, WY eli-h -Energy Laboratories, Inc. -Helena, MT eli-r -Energy Laboratories, Inc. -Rapid City, SD eli-t -Energy Laboratories, Inc. -College Station, TX CERTIFICATIONS: USEPA: WY00002, Radiochemical WY00937; FL-DOH NELAC: E87641, Radiochemical E871 017; California: 02118CA; Oregon: WY200001; Utah: 3072350515; Virginia: 00057; Washington: C1903 ISO 17025 DISCLAIMER: The results of this Analytical Report relate only to the items submitted for analysis. ENERGY LABORATORIES, INC. -CASPER,WY certifies that certain method selections contained in this report meet requirements as set forth by the above accrediting authorities. Some results requested by the client may not be covered under these certifications. All analysis data to be submitted for regulatory enforcement should be certified in the sample state of origin. Please verify ELI's certification coverage by visiting www.energylab.com ELI appreciates the opportunity to provide you with this analytical service. For additional information and services visit our web page www.energylab.com. Page 2 of 6 EN:RGY ll\HOlll\f C lllt ~; www.energylab.com ~/~."'IU Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gil/ette, WY 8&&-88&-7175 . Rapid City, SO 888-672-1225 . College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab ID: Denison Mines USA Corp July Monthly Groundwater 2011 C11070824-001 Client Sample ID: MW-35 Analyses METALS -DISSOLVED Manganese Uranium Report Definitions: RL -Analyte reporting limit. QCl -Quality control limit. Result 348 24.2 Units ug!L ug!L Qualifier RL 10 0.30 Report Date: 08/10/11 Collection Date: 07/20/11 10:35 DateRecelved: 07/22/11 Matrix: Aqueous MCl! QCl Method Analysis Date! By E200.8 08/06/11 00:11 / sml E200.8 08/06/11 00:11 I sml MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 3 of 6 EI\ERGY . l ... UOHl-IO'.,I! ..... www.energylab.com AnJytiQI Exulllncl SiJIu IIH Helena, MT 877-472-D7ll • Billings, MT 8DO-735-4489 • Casper, WY 888-235-0515 GlIIBttB, WY 8&&-&8&-7175 . Rapid City, SD 888-&72-1225 • College Slat ion, TX 888-&80-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: July Monthly Groundwater 2011 Analyte Count Method: E200.8 Result Units Sample 10: C11070839-007BMS4 Manganese 2 Sample Matrix Spike 1.66 mg/L Uranium 0.545 mg/L Sample 10: C11070839-007BMSD 2 Sample Matrix Spike Duplicate Manganese 1.66 mg/L Uranium 0.564 mg/L Sample 10: LRB 2 Method Blank Manganese ND mg/L Uranium ND mg/L Sample 10: LFB 2 Laboratory Fortified Blank Manganese 0.0503 mg/L Uranium 0.0507 mg/L Qualifiers: RL -Analyte reporting limit. S -Spike recovery outside of advisory limits. Report Date: 08/10/11 Work Order: C11070824 RL %REC Low Limit High Limit 0.010 0.00030 0.010 0.00030 2E-05 8E-06 0.0010 0.00030 Run: ICPMS4-C_ll OB05A 137 70 130 108 70 130 Run: ICPMS4-C_ll 0805A 138 70 130 112 70 130 Run: ICPMS4-C_ll OB05A Run: ICPMS4-C_ll OB05A 101 85 115 101 85 115 ND -Not detected at the reporting limit. RPD RPDLimit Qual Batch: R14B997A OB/06/11 01 :19 S 08/06/11 01 :24 0.2 20 S 3.4 20 08/05/11 12:26 OB/05/11 12:31 Page 4 of 6 EN:RGY LI\HUHI' .. I OHll !.~ WWN.energylab.com AIIMytIaI ~ SInu llISt Halena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 866-686-7175 . Rapid City, so 888-&12-1225 . College Station,1X 888-690-2218 Workorder Receipt Checklist Denison Mines USA Corp 11II1II1 ~IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII C11070824 Login completed by: Edith McPike Reviewed by: BL2000\kschroeder Reviewed Date: 7/25/2011 Shipping container/cooler in good condition? Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Chain of custody present? Chain of custody signed when relinquished and received? Chain of custody agrees with sample labels? Samples in proper container/bottle? Sample containers intact? Sufficient sample volume for indicated test? All samples received within holding time? ContainerfTemp Blank temperature: Water -VOA vials have zero headspace? Water -pH acceptable upon receipt? Contact and Corrective Action Comments: None Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 2.6"C On Ice Yes 0 Yes 0 Date Received: 7/22/2011 Received by: dw Carrier NDA name: No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 Not Present 0 Not Present 0 Not Present 0 No VOA vials submitted 0" Not Applicable 0 Page 5 of 6 Chain of Custody and Analytical Request Record Page_\_of_\ _ tUIft{U 'Btl-Xiii-I,. PLEASE PRINT (Provide as much information as possible.) Company Name: M;ne.~ Project Name, PWS, Permit, Etc. Sample Origin EPNState Compliance: De.1'\t~on U".,..\..'\ MO(l+hl_~ &fQW\J. Wo...+~r ;tOll State: U"1' Yes ~ No 0 Report Mail Address: PO 13 0)( 8 O~ Contact Name: Phone/Fax: Email: Sampler: (Please Print) 'f>lc.nd: n...~ ~ 8~!t1t R~o..('\ P ().\rnc::r 435 b78 ~I -r;."nel" J-JoJj,IJ"j Invoice Address: Invoice Contact & Phone: Purchase Order: Quote/Bottle Order: So..h'\c:'-~o......,e. Special Report/Formats: :s: ~[1~®O@ ~~®M~[Q) .. Contact ELI prior to ShUP~_10 Of 0 ~ RUSH sample submittal ~o U)..c. for charges and Cooler lO(s): ~1XI;gOI :u 0 ,:::-R scheduling -See C()·~ .-> 0 >om ~ Dow D EDD/EDT(Electronic Data) ~CJ)~ rn :s: w Instruction Page 0:s:= ~ 0) I "C ReeeiPXP o POTWIWWTP Format: 0 c: Comments: ~<ca.l~Q~ :I U ;{ DC o State: 0 LEVEL IV o ~ IXII c: ~ <! e \-8.~ 5;§ ~ I-III o Other: 0 NELAC ~0:r-g . ~ l-E On lee: C)N <! :l :l~:.l(I~:S: C .-S Z a. (1)0 .:: ~ w "E Custody Saal E >1 ~ ~ w co On Bortle ~ &g (f) "C On Cooler c: ~ III '-U5 H Intad SAMPLE IDENTIFICATION Collection Collection MATRIX :S ~ Signature (Name. Location. Interval, etc.) Date Time Match 1 7/f).lJ/ll I-W '" ...... MW-35 'O1>~ '" ~ 2 ~ 3 \QI nnn 4 r@ 5 ~ 6 ~ 7 ~ -~ 8 ~ 0 9 IilQ ~ 10 <==j·l/lollfXa Custody ~::;;. bYH;ltl~<k~ ~ Io;.~~u I 130 _In:,;:urojJ~.JA.:L,,.. Received by print): Da.elTime! SognatlJre. Record ReIlnqulshea by (prtnl~ tJ OalelTlme: Slgnalure, ....; Received by (prin\): DalelTime; SionaM&; MUST be Signed """I ~:rrJt.ry. A 2-~ll q J ~ ::itllnalu,e: Sample Disposal: Return to Client: Lab Disposal: [ -l!9)oth~ertified laboratories in order to complete the analysis requested. In certain circumstances, samples submitted to Energy Laboratories. Inc. may be subcontract~ pOsslOllity. All sub-contract data Will be Clearly notated on your analytical rep Visit our web site at www.energylab.com for additional information. downloadable fee schedule. forms, and links. TabF2 Laboratory Analytical Reports -Accelerated Monitoring September 2011 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com web: www.awa1-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer ORGANIC ANALYTICAL REPORT Client: Project: Lab Sample ID: Denison Mines September Monthly Ground Water 2011 l109163-001A Client Sample ID: MW-ll Collection Date: 91712011 1515h 1009h Received Date: 9/9/2011 Contact: Jo Ann Tischler Method: SW8260C Analytical Results VOAs by GC/MS Method 8260C/S030C Analyzed: 9/9/2011 1508h Units: I1g/L Dilution Factor: 1 Compound Tetrahydrofuran Surr: 1,2-Dichloroethane-d4 Surr: 4-Bromotluorobenzene Surr: Dibromofluoromethane Surr: Toluene-d8 CAS Number 109-99-9 17060-07-0 460-00-4 1868-53-7 2037-26-5 Reporting Analytical Limit Result Qual 1.00 < 1.00 77-144 109 80-123 108 80-124 106 80-125 99.4 Report Date: 9115/20 II Page 4 of 15 All analyses applicable to the CWA. SDWA, and ReRA arc pcrfomlcd in accordance to NELAC protocols. Pertinent ~ampling informaLion is located on the auachcd COCo lJlis report is provided for the exclusive use of the addr~see. Privileges of subsequent use of the name of this company or any member of its staff. or reproduction of this report in connection with the advertisement, promotion or sale afaoy product or process, or in connection with the fe-publication of this report for any purpose othor than for the addressee will be granted only on contact. 1111S company accepts no responsibility except for the due performance of inspection and/or analysis in good faith and according to the rules of the trade and of science. EN:RGY I\-H .. )\~)\J ')I.JIC ~. www.energytab.com AM/fIlt2I EmI/Itra Shu 1151 Helena, MT 871-412-0711 • Billings, MT 800-135·44811 • Casper, WY 881-235-0515 Gillatta, WY 81&-18&-7175 • Rapid City, SD 888-&72-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab ID: Denison Mines USA Corp September Monthly Groundwater 2011 C11090325-001 Client Sample 10: MW-11 Analyses METALS -DISSOLVED Manganese Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 106 ug/L Qualifier RL 10 Report Date: 10/04/11 Collection Date: 09/07/11 15:15 DateRecelved: 09/09/11 Matrix: Aqueous MCL! QCL Method Analysis Date 1 By E200.8 09/09/11 19:43/ sml MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 3 of 21 EN:RGY /\H\.Jf~··~I·-'I"I J ., www.energylab.com Aa/fIII:M f.aIIIIIa SInu IHI Helena, MT 877-472-0711 • Billings, MT 800·135·4489 • Casper, WY 888-235-0515 Gillatte, WY 81&-188·7175 • Rapid City, SD 888·172-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp September Monthly Groundwater 2011 C11090325·002 Client Sample 10: MW-25 Analyses METALS -DISSOLVED Uranium Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 5.96 ug/l Qualifier RL 0.30 Report Date: 10/04/11 Collection Date: 09/07/11 11:10 DateReceived: 09/09/11 Matrix: Aqueous MCL! QCL Method Analysis Date I By E200.B 09/09/1119:47/sml MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 4 of 21 EN:RGY /\-:.()I,.l/\IU.HI" www.energylab.com AMfTtkII~ShIu 1m Helena, MT 871-472-0111 • Billings, MT BOO·735·4489 • Casper, WY 881-235-0515 Gillatte, WY 888·888·7175 • Rapid City, SD 888·&72·1225 • College Station, 1)( 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: September Monthly Groundwater 2011 LablD: C 11090325-003 Client Sample ID: MW-26 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N PHYSICAL PROPERTIES Solids, Total Dissolved TOS @ 180 C METALS· DISSOLVED Uranium RADIONUCLlDES· DISSOLVED Gross Alpha minus Rn & U Gross Alpha minus Rn & U Precision (±) Gross Alpha minus Rn & U MOC VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes, Total Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-dB Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result Units 66 mg/L 2.4 mg/L 3200 mg/L 56.1 ug/L 2.5 pCi/L 0.4 pCl/L 0.2 pCi/L NO ug/l NO ug/L NO ug/l 1300 ug/l NO ug/L NO ug/l 7.9 ug/L NO ug/l NO ug/l NO ug/l 101 %REC 112 %REC 94.0 %REC B9.0 %REC MOC -Minimum detectable concentration Report Date: 10/04/11 Collection Date: 09/07/11 09:15 DateReceived: 09/09/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date I By 0 0 A4500-CI B 09/27/11 13:551 wc 0.2 E353.2 09/09/11 16:20 I dc 10 A2540 C 09/12/11 11 :01 Ilmc 0.30 E200.8 09/09/11 19:52 I sml E900.1 09/15/11 17:561 ep E900.1 09/15/11 17:561 ep E900.1 09/15/11 17:56 1 ep 20 SW8260B 09/15/11 19:561 jlr 1.0 SW8260B 09/15/11 19:561 jlr 1.0 SW8260B 09/15/11 19:561 jlr 100 SW8260B 09/15/11 19:20 1 jlr 1.0 SW8260B 09/15/11 19:56 I jlr 20 SW8260B 09/15/11 19 :56 1 jlr 1.0 SW8260B 09/15/11 19:561 jlr 1.0 SW8260B 09/15/11 19:561 jlr 1.0 SW8260B 09/15/11 19:561 jlr 1.0 SW8260B 09/15/11 19:561 jlr 80-120 SW8260B 09/15/11 19:56 I jlr 70-130 SW8260B 09/15/11 19:56 I jlr BO-120 SWB260B 09/15/11 19 :56 1 jlr BO-120 SWB260B 09/15/11 19:561 jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. o -Rl increased due to sample matrix. Page 5 of 21 EN:RGY :,:-')f /,,1 -:"})-JI .~ \WIW.energylab.com Au/1III:M £aIIwa sac. fllZ Halena, MT 171-472-0711 • Billings, MT 100-735-4489 • Casper, WY 818-235-8515 Gillette, WY 88&-IIB-7175 • Rapid City, SO 888-672-1225 • College Station, lX 188-610-2211 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab 10: September Monthly Groundwater 2011 C11090325-004 Client Sample 10: MW-30 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N METALS -DISSOLVED Selenium Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 145 16 32.4 o -RL increased due to sample matrix. Units mg/L mg/l ug/l Report Date: 10/04/11 Collection Date: 09/07/11 10:45 DateReceived: 09/09/11 Matrix: Aqueous MCll Qualifier RL QCL Method Analysis Date 1 By A4500-CIB 09/27/11 13:581 wc 0 E353.2 09/09/11 16 :23 1 dc 5.0 E200.8 09/13/11 18:451 sml Mel -Maximum contaminant level. NO -Not detected at the reporting limit. Page 6 of 21 www.energytab.com AM11tIaI EJaIIIIa SIlxI 1m Halen., MY 877-472-0711 • Billings, MY 800-135-4489 • Casper, WY 881-235-8515 Gilletts, WY 81&-186-1115 • Rapid City, so 888-612-1225 • Collage Station, IX 881-610-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab 10: September Monthly Groundwater 2011 C 11 090325-005 Client Sample 10: MW-31 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N Sulfate PHYSICAL PROPERTIES Solids, Total Dissolved TDS @ 180 C Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 148 21 541 1300 D -Rl increased due to sample matrix. Units mg/l mg/l mg/l mg/l Report Date: 10/04/11 Collection Date: 09/06/11 14:10 DateReceived: 09/09/11 Matrix: Aqueous MCll Qualifier Rl QCl Method Analysis Date I By A4500-CI B 09/27/11 14:00/ wc D E353.2 09/09/11 16:25 I dc D 10 A4500-S04 E 09/16/11 15:23/ wc 10 A2540 C 09/12111 11 :01 Ilmc MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 7 of 21 EN:RGY 1\~t.'I JI'·1 _)I JI 'J www.energy1ab.com AIu/ffIa/ ~ SIIIu 1151 Helena, NT 877-412-0711 • Billings, NT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 811-18&-7175 • Rapid City, SD 888-172-1225 • Colloge Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp September Monthly Groundwater 2011 C11090325-006 Client Sample 10: MW-35 Analyses METALS -DISSOLVED Manganese Uranium Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 270 ug/l 22.3 ug/l Qualifier Rl 10 0.30 Report Date: 10/04/11 Collection Date: 09/07/11 12:40 DateReceived: 09/09/11 Matrix: Aqueous MCl! QCl Method Analysis Date 1 By E200.8 09/09/11 20:361 sml E200.8 09/09/11 20:361 sml MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 8 of 21 EN:RGY '~-j.ul-.lJ\1 ~ 1-.lIL • J www.energytab.com AM/ffIaI ~ SIIJU 'lIZ Helena, 1M B77-472-0711 • Billings, 1M 800-735-4489 • Caspar, WY 881-235-0515 Gillatta, WY 8&&-18&-7175 • Rapid City, SO 888-&72-1225 • Collage Station, TX 888-610-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp September Monthly Groundwater 2011 C11090325-007 Client Sample ID: MW-65 Analyses METALS -DISSOLVED Manganese Uranium Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 275 ug/l 23.0 ug/l Qualifier Rl 10 0.30 Report Date: 10104/11 Collection Date: 09/07/11 12:40 DateReceived: 09/09/11 Matrix: Aqueous MCL! QCl Method Analysis Date 1 By E200.8 09/09/11 20:41 / sml E200.8 09/09/11 20:41 / sml MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 9 of 21 ORGANIC ANALYTICAL REPORT Client: Denison Mines Project: September Monthly Ground Water 2011 Lab Sample ID: l109l63-002A Client Sample ID: Trip Blank ANA LYTI CAL LABORATORIES Collection Date: 9/7/2011 Received Date: 9/9/2011 1009h Contact: Jo Ann Tischler Method: SW8260C Analytical Results VOAs by GC/MS Method 8260CIS030C 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-labs.com web: www.awal-Iabs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer Analyzed: 9/9/2011 1527h Units: fJ.g/L Dilution Factor: 1 Compound Tetrahydrofuran Surr: 1,2-Dichloroethane-d4 Surr: 4-Bromofluorobenzene Surr: Dibromofluoromethane Surr: T 0luene-d8 CAS Reporting Analytical Number Limit Result Qual 109-99-9 1.00 20.3 17060-07-0 77-144 111 460-00-4 80-123 112 1868-53-7 80-124 107 2037-26-5 80-125 99.2 Report Date: 9/15/2011 Page 5 of 15 All analyses applicable to the CWA, ;;DWA. and RCRA are perfomled in accordance (0 NE~AC protocols. Pertinent samrling infomlatlon is locat~d on the attached COCo This report is provided for the ~xclusive use oflhe addressee Privileges of subsequent use of the name oftrus company or any member of its staff. or reproduction oflhis report in connecLion with the advertisement, promotion or sale afany product or process, or in connection with the re-publication oflhis report for any purpose other than for the addressee will be granled only on con1D.ct~ This company accepts no I1!Sponsibility except for thl! due pcrfommncc of inspection and/or analysis in good faith and Dccording to the rules of the trade and of science. EI\ERGY r".,UIJ'\1 ()'~I 'J www.energylab.com AIIfI1IIaI EluIIIIIa stnu 1m Helena, MY 811-472-0711 • Billings, MT 800·735·4489 • Casper, WY 881-235·0515 Gillatte, WY 811·188·7175 • Rapid City, SD 88B-172-1225 • Collage Sialion, 1X 881-110-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab 10: September Monthly Groundwater 2011 C11090325-008 Client Sample 10: Trip Blank 6092 Analyses VOLATILE ORGANIC COMPOUNDS Acetone Benzene Carbon tetrachloride Chloroform Chloromethane Methyl ethyl ketone Methylene chloride Naphthalene Toluene Xylenes, Total Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. Result Units NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L NO ug/L 103 %REC 97.0 %REC 94.0 %REC 86.0 %REC Qualifier RL 20 1.0 1.0 1.0 1.0 20 1.0 1.0 1.0 1.0 80-120 70-130 80-120 80-120 Report Date: 10104/11 Collection Date: 09/07/11 DateRecelved: 09/09/11 Matrix: Aqueous MCL! QCl Method Analysis Date 1 By SW8260B 09/15/11 16: 18 1 jlr SW8260B 09/15/11 16:181 jlr SW8260B 09/15/11 16:181 jlr SW8260B 09/15/11 16:181 jlr SW8260B 09/15/11 16: 18 1 jlr SW8260B 09/15/11 16:181 jlr SW8260B 09/15/11 16:181 jlr SW8260B 09/15/11 16: 18 1 jlr SW8260B 09/15/11 16:181 jlr SW8260B 09/15/11 16:181 jlr SW8260B 09/15/11 16:181 jlr SW8260B 09/15/11 16:181 jlr SW8260B 09/15/11 16:181 jlr SW8260B 09/15/1116:18/jlr MCL -Maximum contaminant level. NO -Not detected at the reporting limit. Page 10 of 21 EN:RGY I\'--"':d ) \.1 0:. ... f-U , J www.energylab.com Aa/fIfaI f.aIIMa S1nw IIIZ Helen., MT 871-412-0711 • Billings, MT 800-735-4489 • Casper, WY 881-235-8515 Gillette, W'( 818-188-7175 • Rapid City, SD 888-&72-1225 • College Station, 1X 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp September Monthly Groundwater 2011 Cll090325-009 Client Sample 10: Temp Blank Analyses PHYSICAL PROPERTIES Temperature Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 2.2 Qualifier Rl Report Date: 10/04/11 Collection Date: 09/07/11 DateReceived: 09/09/11 Matrix: Aqueous MCL! QCl Method Analysis Date / By E170.1 09/09/11 09:20 / kbh MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Pa~e 11 of 21 Jo Ann Tischler Denison Mines 1050 17th Street, # 950 American West Denver, CO 80265 ANA I ~l IC "'1 I AIlOAATo nl£S 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263 -8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-labs.com web: www.awal-labs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer TEL: (303) 389-4132 RE: September Monthly Ground Water 2011 Dear Jo Ann Tischler: Lab Set ill: 1109163 American West Analytical Laboratories received 2 sample(s) on 9/9/2011 for the analyses presented in the following report. All analyses were performed in accordance to The NELAC Institute protocols unless noted otherwise. American West Analytical Laboratories is certified by The NELAC Institute in Utah and Texas; and is state certified in Colorado, Idaho, and Missouri. Certification document is available upon request. If you have any questions or concerns regarding this report please feel free to call. The abbreviation "SUIT" found in organic reports indicates a surrogate compound that is intentionally added by the laboratory to determine sample injection, extraction, andlor purging efficiency. The "Reporting Limit" found on the report is equivalent to the practical quantitation limit (PQL). This is the minimum concentration that can be reported by the method referenced and the sample matrix. The reporting limit must not be confused with any regulatory limit. Analytical results are reported to three significant figures for quality control and calculation purposes. Thank You, Digitally signed by Jose G. J 0 S e G ~~~~~=Jose G. Rocha. • o::American WesL Analytical Laboratories. ou=Quality Assurance Officer, Roc h a ~::,~~=joSe@awal.'abs.com. Date: 2011.09.1915:29:38 Approved by: 1--_______ ,0_6'_00_' ____ ---' Laboratory Director or designee Report Date: 9115/2011 Page I of15 All analyses applicable to the C;WA, SDWA, and RCRA are performed in accordance ~o NELAC protocols Pertinent sampling infonnation is located on the attached COCo This report is provided f9T the exclusive use of the addressee. Privileges of subsequent use of the nllme oflhis company or any member of its staff, or reproduction of this report in connection with the advertisement, promotion or sale of any product or process, or ineonnection with the re-publication oflhis report for any purpose olher than for the addressee will be granted only on contacl. This company accepfs no responsibility ex-cept for Ihe due pcrConnancc of inspection and/or analysis in good failh and according to the roIL'S oflhe trade and of sciCTlce 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-labs.com web: www.awal-Iabs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer SAMPLE SUMMARY Client: Project: Lab Set ID: Date Received: Denison Mines September Monthly Ground Water 20 II 1109163 9/9/2011 1009h Lab Sample ID Client Sample ID Date Collected 1109163-001A MW-II 91712011 1515h 1109163-002A Trip Blank 91712011 Contact: Jo Ann Tischler Matrix Analysis Aqueous VOA by GCIMS Method 8260C/5030C Aqueous VOA by GCIMS Method 8260C/5030C Report Date: 9/15/2011 Page 2 of 15 All aflalyses applicable (0 the CW A. SDWA. and RCRA arc pcrfomlcd in accordance to NELAC protocols. Pcrtin~t sampling infomlation is located on the attached COe.. This report is provided for the exclusive usc of the ad4rcsscc Privileges of .. subsequent USc of the name orlhis company or any member orits staft: orreproducLion of this report in connection with· the advertisement. proolotion or sale of any product or process, ·"rio conneclion with the fe-publication of this-report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility except for the due perfomlancc of inspection and/or analysis in good faith and according to the rules of the trnde and of science. 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686 Toll Free: (888) 263-8686 Fax: (801) 263-8687 e-mail: awal@awal-labs.com web: www.awal-Iabs.com Kyle F. Gross Laboratory Director Jose Rocha QA Officer Volatile Case Narrative Client: Contact: Denison Mines Jo Ann Tischler Project: Lab SetID: Sample Receipt Information: Date of Receipt: Date(s) of Collection: Sample Condition: C-O-C Discrepancies: Method: Analysis: September Monthly Ground Water 2011 1109163 9/9/2011 9/712011 Intact None SW-8468260CIS030C Tetrahydrofuran General Set Comments: Tetrahydrofuran was observed in the Trip Blank above reporting limits. To confirm the result of the first vial, a second sample vial was analyzed with a similar result. The result in sample MW-11 was < 1.00 /lg/L and therefore demonstrates that the contamination in the Trip Blank did not occur during the analysis. It is important to note that the vials used for the Trip Blanks were not provided by American West Analytical Laboratories. Holding Time and Preservation Requirements: All samples were received in appropriate containers and properly preserved. The analysis and preparation of all samples were performed within the method holding times following the methods stated on the analytical reports. Analytical QC Requirements: All instrument calibration and calibration check requirements were met. All internal standard recoveries met method criterion. Batch QC Requirements: MB, LCS, MS, MSD, RPD, and Surrogates: Method Blanks (MBs): No target analytes were detected above reporting limits, indicating that the procedure was free from contamination. Laboratory Control Sample (LCSs): All LCS recoveries were within control limits, indicating that the preparation and analysis were in control. Matrix Spike 1 Matrix Spike Duplicate (MS/MSD): All percent recoveries and RPDs (Relative Percent Differences) were inside established limits, indicating no apparent matrix interferences. Surrogates: All surrogate recoveries were within established limits. Corrective Action: None required. Report Date: 9/15/20 II Page 3 of 15 All analyses applicable to the CWA. SDWA. and RCRA are performed in accordance 10 t;-lfi:I.AC prolocQI~ P('uTnClr Nmrlhlg 10fonl1 Iron is lo~ated on the. IIUM'IK"ti COc. Thi! t:'l"pOft IS provided for t~e exclusive use of the addressee. Privileges of subsequent use ofthc name of Ihis company or any member of its staff, or reproduction orth-III tcpOn ln r::OfIn~lIon wilh Ihe ~uJYC'r1hllt1lellt. promotion or sI1e of any .,rod~hH or PI~ Qf In conTlection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. 111is company acl'C'pts nO fcspoJHibi'Uty C:<tt'PI rOt lIu~ due I"""fromwn~ of inspection IIndfor IInal>,,15 In good fllhh And according 10 the ruh:s of the trade and of science American West ANALYTICAL LABORATORIES Client: Denison Mines Lab Set ID: 1109163 . Project: September Monthly Ground Water 2011 SampleID Analyte LCS VOC 090911A Tetrahydrofuran LCS VOC 090911A SUIT: 1,2-Dichloroethane-d4 LCS VOC 090911A SUIT: 4-Bromofluorobenzene LCS VOC 090911A SUIT: Dibromofluoromethane LCS VOC 090911 A SUIT: Toluene-d8 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686, Toll Free: (888) 263-8686, Fax: (801) 263-8687 e-mail: awal@awal-labs.com, web: www.awal-labs.com Units 11g/L %REC %REC %REC %REC C SUMMARY REPORT Amount Method Result Spiked SW8260C 15.6 20.00 SW8260C 51.1 50.00 SW8260C 49.2 50.00 SW8260C 52.0 50.00 SW8260C 49.5 50.00 Contact: Dept: QCType: Original Jo Ann Tischler MSVOA LCS Amount %REC Limits 0 78.0 43-146 102 69-132 98.5 85-118 104 80-120 99.0 81-120 RPD %RPD Limit Kyle F. Gross Laboratory Director Jose Rocha QAOfficer Qual Date Analyzed 9/9/2011 0716h 9/9/2011 0716h 9/9/2011 0716h 9/9/2011 0716h 9/9/2011 0716h Report Date: 9/15/2011 Page 6 of 15 All analyses applicable to the CWA. SDWA. and ReRA are performed in accordance to NELAC protocols. Pertinent sampling infonnation is located on the attached CDC. This report is provided for the exc1usive use of the addressee. Privileges of subsequent use of the Dame of this company or any member of its staff. or reproduction of this report in connection with the advertisement, promotion OT we of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted oruy on contact. This company accepts no responsibility except for the due perfonnance of inspection and/or analysis in good faith and according to the rules of [he trade and of science. American West ANALYTICAL LABORATORIES CUent: Denison Mines Lab Set ID: 1109163 Project: September Monthly Ground Water 2011 Sample ID Analyte MB VOC 090911A Tetrahydrofuran MB VOC 090911A Surr: 1,2-Dichloroethane-d4 MB VOC 090911A Surr: 4-Bromofluorobenzene MB VOC 090911A Surr: Dibromofluoromethane MB VOC 090911A SUIT: Toluene-d8 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686, Toll Free: (888) 263-8686, Fax: (801) 263-8687 e-mail: awal@awal-labs.com, web: www.awal-labs.com QC SUMMARY REPORT Contact: Jo Ann Tischler Dept: MSVOA QC Type: MBLK Amount Original Units Method Result Spiked Amount %REC Limits Ilg/L SW8260C < 1.00 %REC SW8260C 53.5 50.00 107 69-132 %REC SW8260C 53.4 50.00 107 85-118 %REC SW8260C 52.7 50.00 105 80-120 %REC SW8260C 51.5 50.00 103 81-120 RPD %RPD Limit Kyle F. Gross Laboratory Director Jose Rocha QA Officer Qual Date Analyzed 9/9/2011 0754h 9/9/2011 0754h 9/9/2011 0754h 9/9/2011 0754h 9/9/2011 0754h Report Date: 9/1512011 Page 7 of 15 All analyses applicable to the CWA. SDWA. and RCRA are performed in accordance to NELAC protocols. Pertinent sampling information is located on the attached COCo This report is provided for the exclusive use of the addressee. Privileges of subsequent use of the Dame of this company or any member afits staff. or reproduction aftbis report in connection with the advertisement, promotion or sale orany product or process, or in connection with tbe re-publication of this report for any purpose other tban fortbe addressee will be granted only on contact This company accepts DO responsibility except for the due performance of inspection and/or analysis in good faith and according to the ruJes of the trade and of science. American West 4NA l yt.e:Al LAftO~"TORIIS' Client: Denison Mines Lab Set ID: 1109163 . Project: September Monthly Ground Water 2011 SampleID Analyte 1109163-001AMS Tetrahydrofuran 1109163-001AMS SUIT: 1,2-Dichloroethane-d4 1109163-001AMS SUIT: 4-Bromofluorobenzene 1109163-001AMS SUIT: Dibromofluoromethane 1109163-001AMS SUIT: Toluene-d8 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686, Toll Free: (888) 263-8686, Fax: (801) 263-8687 e-mail: awal@awal-labs.com, web: www.awal-labs.com C SUMMARY REPORT Contact: Dept: Jo Ann Tischler MSVOA QC Type: MS Amount Original Units Method Result Spiked Amount %REC Limits ~g;L SW8260C 19.8 20.00 0 99.0 43-146 %REC SW8260C 55.9 50.00 112 77-144 %REC SW8260C 49.0 50.00 98.0 80-123 %REC SW8260C 53.8 50.00 108 80-124 %REC SW8260C 48.2 50.00 96.4 80-125 RPD %RPD Limit Kyle F. Gross Laboratory Director Jose Rocha QA Officer Qual Date Analyzed 9/9/2011 1546h 9/9/2011 1546h 9/9/2011 1546h 9/9/2011 1546h 9/9/2011 1546h Report Date: 9115/2011 Page 8 of 15 All anaLyses applicable to the CWA. SDWA, and RCRA are performed in accordance to NELAC protocols. Pertinent sampling information is located on the attached COC, This report is provided for the exclusive use of the addressee. Privileges of subsequent use of the Dame ofthis company or any member of its staff, or reproduction of this report in connection with the advertisement, promotion or sale of any product or process, or in connection with the re-publication of this report for any purpose other than for the addressee will be granted only on contact. This company accepts no responsibility except for the due performance of inspection and/or analysis in good faith and according to the rules of the trade and of science. American West ANALYTICAL LABO~ATORIES Client: Demson Mines Lab Set ID: 1109163 Project: September Monthly Ground Water 2011 SampleID Analyte 1109163-001AMSD Tetrahydrofuran . 1109163-001AMSD Surr: 1,2-Dichloroethane-d4 1109163-001AMSD Surr: 4-Bromofluorobenzene 1109163-001AMSD Surr: Dibromofluoromethane 1109163-001AMSD Surr: Toluene-d8 463 West 3600 South Salt Lake City, UT 84115 Phone: (801) 263-8686, Toll Free: (888) 263-8686, Fax: (801) 263-8687 e-mail: awal@awal-Iabs.com, web: www.awal-labs.com C SUMMARY REPORT Contact: Dept: Jo Ann Tischler MSVOA QC Type: MSD Amount Original Units Method Result Spiked Amount %REC Limits /lgIL SW8260C 19.9 20.00 0 99.7 43-146 %REC SW8260C 56.0 50.00 112 77-144 %REC SW8260C 48.1 50.00 96.2 80-123 %REC SW8260C 53.5 50.00 107 80-124 %REC SW8260C 47.5 50.00 95.1 80-125 RPD %RPD Limit 0.705 25 Kyle F. Gross Laboratory Director Jose Rocha QAOfficer Qual Date Analyzed 919/2011 1605h 919/2011 1605h 9/9/2011 1605h 9/9/2011 1605h 9/9/2011 1605h Report Date: 9/15/2011 Page 9 of 15 All analyses applicable to the CWA. SDWA, and RCRA are performed in accordance to NELAC protocols. Pertinent sampling infonnation is located on the attached COCo This report is provided for the exc1usive lISe of the addressee. Privileges of subsequent usc of the name of this company or any member of its staff. or reproduction of this report in connection with the advertisement, promotion or sale of any product or proc~ or in connection with the re-publication of this report for any purpose other than for the addressee win be granted. only on contact. This company accepts no responsibility except for the due perfonnance of inspection and/or analysis in good faith and according to the rules of the trade and of science, Data Path Data File Acq On Operator Sample Mise ALS Vial Quantitati on Report C:\msdchem\1\DATA\SEPII-C\09SEPllA\ Y55L1631 .D 9 Sep 2011 3 :08 pm 1l09163-00lA SAMP 5 .0ML lOF3 28 Sample Multiplier : 1 Quant Time : Sep 10 15 :25 :35 2011 Quant Met hod C:\MSDCHEM\1\METHODS\AFULLW_37.M Quant Title VOA Calibration QLast Update li'ri Sep 02 07 :25 :06 2011 Response via Initial Calibration <Qr Reviewed) Abundance TIC: Y55L 1631.0\data.ms 1100000' 1050000 1000000 950000, 900000· 850000; ~ I c ~ I .. ~ J I i g ~ e '" ~ li ~ '" ~ i 800000' 750000 700000 I 650000 ~ 6000001 I 550000i 500000j 4500001 rn. .. I ~ '" I f 4°0000i ~ r ~ ! I i 3600001 ~ ~ i 1 ~ ,t: 300000j til I I 2500001 I 200000 150000 100000 50000 o Time--> ?,Qg 2.(i0 .M ,Q 3.59 4,09 4.50 2-Q.O 5.50 6.00 6.§0 _ 7.g0 7.5Q ~.OO 8.50 9.00 9.50 10.00 10.50 11 .00 11.50 AFULLW_37 .M Sat Sep 10 15:27 :25 2011 Page: 4 Rcpon Dale: 9/151201 1 Page 10 liftS Data Path Data File Acq On Operator Sample Mise ALS Vial Quantitation Report C:\msdehem\l\DATA\SEPI1-C\09SEPlIA\ Y55L1632.D 9 Sep 2011 3:21 pm 1l09l63-002A SAMP 5.0ML lOF2 29 Sample Multiplier: 1 Quant Time: Sep 10 15:29:12 2011 Quant Method C:\MSDCHEM\I\METHOOS\AFULLW_31.M Quant Title VOA Calibration QLast Update Fri Sep 02 01 :25:06 2011 Response via Initial Calibration (QT Reviewed) Abundance TlC: Y55L 1632.0ida!a,ms "00000 '050000 '000000 950000 900000 850000 800000 750000 700000 850000 800000 550000 500000 450000 400000 350000 300000 250000 200000 '50000 '00000 50000 o I I t , l I Ii j f Time .. > 2,00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.()Q 11 .50 AFULLW_37.M Sat Sep 10 15:29:27 2011 Page: 4 Repon Date: 9/1512011 Pale II orIS Data Path Data File Aeq On Operator Sample Mise ALS Vial Quantitation Report C:\msdehem\1\DATA\SEP11-C\09SEP11A\ Y30LCS20.D 9 Sep 2011 7:16 am LCS VOC 09091lA LCS SEE COVERSHEET FOR 10 AND AMOUNTS 3 Sample Multiplier: 1 Quant Time: Sep 10 15:11:16 2011 Quant Method C:\MSDCHEM\1\METHODS\AFULLW_37.M Quant Title VOA Calibration QLast Update Fri Sep 02 07:25:06 2011 Response via Initial Calibration (QT Reviewed) Abunda(lce TIC: Y30LCS20.D\data.ms 2100000 2000000 1900000 1 BOOOOO 1700000 1600000 1500000 1400000- 1300000· 1200000 1100000 1000000 900000 BOOOOO 700000 6000001 500000 400000 ! ~ ~a; 3000000:, 200000! ~ 0.> 100000 I I I I I Q Iii T I '! I, 01 -7F ---- _ ..,;... ~ - --- Time--> ~.OO 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 B.OO B.50 9.00 9.50 HtOO 1 Q,50 ~ 11.9L AFULLW_37.M Sat Sep 10 15:13:00 2011 Page: 4 Report Date: 9115/2011 Page 12 ofl5 Data Path Data File Acq On Operator Sample Mise ALS Vial Quantitation Report C:\msdehem\1\DATA\S~PI1-C\09SEPI1A\ Y32LMBLK.D 9 Sep 2011 7:54 am MB VOC 090911A MBLK S .OML 5 Sample Multiplier: 1 Quant Time: Sep 10 15:12:10 2011 Quant Method C:\MSOCHEM\1\METHODS\AFULLW_37.M Quant Title VOA Calibration QLast Update Fri Sep 02 07:25:06 2011 Response via Initial Calibration (QT Reviewed) TIC: Y32LMBLKD\dala.ms 1150000 1OSOOOO '000000 950000 900000 850000 I 750000 700000 650000 600000 550000 500000 450000 400000 350000 300000 II .I .Ii 250000 200000 .50000 '00000 50000 o Time··> 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.SO 11.00 11.50 AFULLW_37.M Sat Sep 10 15:13:32 2011 Page: 4 Repon Datc: 911S12011 Page 13 of IS Data Path Data File Aeq On Operator Sample Mise ALS Vial Quantitation Report C:\msdehem\I\DATA\SEPII-C\09SEPIIA\ Y56S163l.D 9 Sep 2011 3:46 pm 1l09163-001AMS MS 5.0ML 10F3 30 Sample Multiplier: 1 Quant Time: Sep 09 15:58:12 2011 Quant Method C:\MSDCHEM\1\METHODS\AFULLW_37.M Quant Title VOA Calibration QLast Update Fri Sep 02 07:25:06 2011 Response via Initial Calibration (Not Reviewed) Abundance 1700000 TIC: Y56S1631.D\data.ms 1600000· 1500000 1400000 1300000 1200000 1100000 1000000 900000 800000 700000 600000 (J) 1 500000 ~ (J) ~ 1 400000 300000 200000 100000· ;g Cl ~ :!! "- 'I . I t; () .. 1 1 II r ! ,,; c: , ~1 1 lID ~~ -5 .-J ~ CD ~~J;, s:; _0 ., c: ~~i .11. III _ a:fij U.e: 1 £; '"i.e: 20Tij '0 m , ~ ~ t 8~ <:::iii!! 1 . 0 E UJ 0 J, I !! ~ , I <II , ·1 o AFULLW_37.M Sat Sep 10 15:26:13 2011 .. ai 1 !!! ~ ~ (J) ., I, I I , Ui 1 I .. Iii ~ Cl. "" E ~ 1: c: I ,g ~ Cl -I:. ~ (J) ,,; c ~ CD ~ 0 ~ !! <II ~ j ..I: .3 !- Page: 4 Report Date: 9115/2011 Page 14 of15 Data Path Data File Aeq On Operator Sample Mise ALS Vial Quantitation Report C:\msdehem\1\DATA\SEP11-C\09SEP11A\ Y57D1631.D 9 Sep 2011 4:05 pm 1l09163-001AMSD MSD 5. OML 10F3 31 Sample Multiplier: 1 Quant Time: Sep 09 16:16:58 2011 Quant Method C:\MSDCHEM\1\METHODS\AFULLW_37.M Quant Title VOA Calibration QLast Update Fri Sep 02 07:25:06 2011 Response via Initial Calibration (Not Reviewed) Abundance TIC: Y57D1631 .D\data.ms , 1600000 1500000 1400000 13000001 1200000 1100000 1000000 900000 800000- 700000' 600000 '" t ! '" 500000 ,; I fa t e .2 400000 :!i 0 '" '" <\t " 5 i' '" ! " 300000 0. a: 5i~ ~ ~ ~ t! .. ,H 0 I 1 ~ ~ I~~ . 0 ... 200000 ~ !iii" ; Hf .. ~ I~ Ai No ! to! ~, , 100000, ~ w ~ I " e . , III < . 'I' \ • I , i' Time--> 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 1.Q.OO 10.50 11.00 11.50 AFULLW_37.M Sat Sep 10 15:26:46 2011 Page: 4 Report Date: 9115/2011 Page IS of 15 American West Analytical Laboratories WORK ORDER Summary Client: ClientID: Project: Comments: SampleID I J 09163-001 A 11 09 1 63-002A Denison Mines DENIOO September Monthly Ground Water 2011 QC 3 & Summary. EDD-CSV. Report TIIF to I ).1g/L.; Client Sample ID Collected Dllte MW-Il 9n 12011 1515h Trip Blank 9n 12011 Contact: QCLevel: Received Date 9/9120 II 1009h UL Worl< Order: 1109163 Page I of 1 9f912011 Jo Ann Tischler LEVELIIT WOType: project~ Date Due Matrix Test Code SeJo Storage 9123/2011 Aqueous 8260-W 0 VOCFridgc 3 8260-W ~ VOCFridge OENISOJ)~ MINES CHAIN OF CUSTODY Sheet 1 of 1 Samples Shipped to: American West Analytical Lab 463 West 3600 South Contact: Ryan Palmer or David Turk Ph: 435 678 2221 Salt Lake City, Ut 84115 roalmer@denisonmines.com dturk@denisonmines.com Chain of Custody/Sampling Analysis Request Pro'ect September Monthly Ground Water 2011 Sample 10 MW-11 -rri I> BIQ.t\V. Date Collected 9/7/2011 q/7 1;1.i)" Samplers Name Sam lers Signature Tanner Hollida Time Collected Laboratory Analysis Requested 1515 THF Please notify Ryan Palmer or Tanner Holliday of Reciept tempature on these samples Immediately! Thank you. r _ Relinquished By:(Signature) DatelTime Vd By:(Signature) DatelTime ~~fl4h 9/8/2011 1139 Relinquished By:(Signature) D7e Received By:(Signature) ~elTime Idll1AA_ jD ..d' ~9i ,II 1C!~'1 / I "J / Lab SetID: II 0 ifGlJ Samples Were: cac Tape Was: Container Type: No. Rec. Jl Shipped By: l.{tc'S "" Present on Outer Package ~ AL Supplied Plastic D Hand Delivered DYes DNa DNiA D A W ~pplied Clear Glass D Ambient ~~(en on Outer package D AWAL Su~Amber Glass :0" Chilled O'VI r'~ o .es DNo DN/A D A WAL SUPPlied~OX Vials Temperature Y.O °C ~~nt on Sample D Amber D Clear 0 Heads e D No Headspace Rec. BrokeniLeakin~ DYes XI No DN/A DYes DNa DN/A D Non A WAL Supplied eontain~ Notes: unbro~~ Sample Notes: ~ DYes D 0 DN/A Properly Preserved %yes DNo DN/A Notes: Notes: Rec. Within Hold J;l!Yes DNa Discrepancies Between Labels and cac DYes ..-£'No Notes: -~ Notes: i .150«.1.,-rp-.-Preservative All pHs OK Ammonia ~.H~S04 eOD pH <2 H2S""O:i--- Cyanide PH>12NaOH ----Metals _R.H <2 HN03 --. t-- N02 &N01 pH <2 H2S04 r---. Nutrients pH <2 H2SO4 ---O&G pH <2 HCL ~ Phenols pH <2 H2SO4 ~ Sulfide pH> 9NaOH, ZnAC -....., TKN pH <2 H2SO4 .............. TOe pH <2 H3P04 ~ TP04 pFl <2 H2SO4 .............. TPH pH <2 HCL r-....... ........... r-, """'-~ .............. -.. -" . , .... . t·, ..... 2) Pour sample from Lid gently over wide range pH paper 3) Do Not dip the pH paper in the sample bottle or lid 4) If sample is not preserved properly list its extension and receiving pH in the appropriate column above 5) Flag eoe and notify client for further instructions 6) Place client conversation on eoe 7) Samples may be adjusted at client request UPS Internet Shipping: Shipment Label UPS Internet Shipping: View/Print Label 1. Print the label(s}: Select the Print button on the print dialog box that appears. Note: If your browser does not support this function select Print from the File menu to print the label. 2. Fold the printed label at the solid line below. Place the label in a UPS Shipping Pouch. If you do not have a pouch, affix the folded label using clear plastic shipping tape over the entire label. 3. GETTING YOUR SHIPMENT TO UPS Customers without a Daily Pickup Schedule a same day or future day Pickup to have a UPS driver pickup all of your Internet Shipping packages. Hand the package to any UPS driver in your area. Take your package to any location of The UPS Store®, UPS Drop Box, UPS Customer Center, UPS Alliances (Office Depot® or Staples®) or Authorized Shipping Outlet near you. Items sent via UPS Return Services{SM) (including via Ground) are also accepted at Drop Boxes. To find the location nearest you, please visit the 'Find locations' Quick link at ups. com. Customers with a Daily Pickup Your driver will pickup your shipment(s) as usual. FOLD HERE .-t 1:1. m 0 V .-t V 0 I rl ~' 0\ rl ~ ~ .... 10 ~ ~ r-4 Ul N <'i 0 5 5 ~ V ~ til I ! L/) !:9 6 .....:l 1""1 00 6 1""1 0 ~ .... .-....... co ~ ~~s E-4 ~ ~§~ ::J lii t-o t-oUl""" .-i Ul UlOU V 0 ~ ~o 00 u C!I ~ ... ~-o ~~ '" ... ~~~~ a 2.,..,~ F: gj:::(t) ~~~~s o~~53;s:E-t Il. ~ ~~~ g F<~~~M<1 6 <~g";Q ~<o -oVl ~~~~3 IE 00 v ~ ::3 _ .... Cl"'OC III co , Page 1 of 1 https:/ /www.ups.com/uis/create? ActionOriginPair=default PrintWindowPage&key=labet.. 9/8/2011 EN:RGY .\ ')1., I I ~I " lWtW.energylab.com AM/JfIaJ &r:MIIta ~ /111 Helena, MT 871-472-0711 • Billings, MT 800-735-4489 • Casper, WY 881-235-0515 Gillette, WY 81&-118-7175 • Rapid City, SD 888-&72-1225 • College Sl!tlon. TX 811-&90-2218 ANALYTICAL SUMMARY REPORT October 04, 2011 Denison Mines USA Corp 6425 S Hwy 191 Blanding, UT 84511 Workorder No.: C11090325 Quote 10: C1640 -POC Wells Project Name: September Monthly Groundwater 2011 Energy Laboratories, Inc. Casper WY received the following 9 samples for Denison Mines USA Corp on 9/9/2011 for analysis. Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test C11090325-001 MW-11 09/07/11 15:1509/09/11 Aqueous Metals by ICP/ICPMS, Dissolved C 11090325-002 MW-25 09/07/11 11:10 09/09/11 Aqueous Same As Above C11090325-003 MW-26 09/07/11 9:15 09/09/11 Aqueous Metals by ICP/ICPMS, Dissolved Chloride Nitrogen, Nitrate + Nitrite Gross Alpha minus Rn222 and Uranium Solids, Total Dissolved SW8260B VOCs, Standard List C11090325-004 MW-30 09/07/11 10:45 09/09/11 Aqueous Metals by ICP/ICPMS, Dissolved Chloride Nitrogen, Nitrate + Nitrite C11090325-005 MW-31 09/06/11 14:10 09/09/11 Aqueous Chloride Nitrogen, Nitrate + Nitrite Solids, Total Dissolved Sulfate C11090325-006 MW-35 09/07/11 12:40 09/09/11 Aqueous Metals by ICP/ICPMS, Dissolved C11090325-007 MW-65 09/07/11 12:4009/09/11 Aqueous Same As Above C11090325-008 Trip Blank 6092 09/07/11 0:00 09/09/11 Aqueous SW8260B VOCs, Standard List C11090325-009 Temp Blank 09/07/11 0:00 09/09/11 Aqueous Temperature The analyses presented in this report were performed at Energy Laboratories, Inc., 2393 Salt Creek Hwy., Casper, WY 82601, unless otherwise noted. Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report, the QAlQC Summary Report, or the Case Narrative. The results as reported relate only to the item(s) submitted for testing. All samples are reported on an as received basis unless otherwise indicated. If you have any questions regarding these test results, please call. Report Approved By: c5t.?~ J) <JtJ.~ Reporting Supervisor Digitally signed by Stephanie Waldrop Date: 2011 .10.0413:16:45 -06:00 Page 1 of21 www.energylab.com Helena, MT 817-472-0711 -Billings, MT 800-735-4489 -Casper, WY 888-235-0515 AR/ffIaI EallaclSIIu'IIU Gillette WY 866-&86-7175 -Re Id C SD 888-672-1225 -Colle & Station 1X 888-890-2218 CLIENT: Denison Mines USA Corp Project: September Monthly Groundwater 2011 Report Date: 10104/11 Sample Delivery Group: C 11090325 CASE NARRATIVE ORIGINAL SAMPLE SUBMITTAL(S) All original sample submittals have been returned with the data package. SAMPLE TEMPERATURE COMPLIANCE: 4'C (±2'C) Temperature of samples received may not be considered properly preserved by accepted standards. Samples that are hand delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun. GROSS ALPHA ANALYSIS Method 900.0 for gross alpha and gross beta is intended as a drinking water method for low TDS waters. Data provided by this method for non potable waters should be viewed as inconsistent. RADON IN AIR ANALYSIS The desired exposure time is 48 hours (2 days). The time delay in returning the canister to the laboratory for processing should be as short as possible to avoid excessive decay. Maximum recommended delay between end of exposure to beginning of counting should not exceed 8 days. SOIUSOLID SAMPLES All samples reported on an as received basis unless otherwise indicated. ATRAZINE, SIMAZINE AND PCB ANALYSIS Data for PCBs, Atrazine and Simazine are reported from EPA 525.2. PCB data reported by ELI reflects the results for seven individual Aroclors. When the results for all seven are ND (not detected), the sample meets EPA compliance criteria for PCB monitoring. SUBCONTRACTING ANALYSIS Subcontracting of sample analyses to an outside laboratory may be required. If so, ENERGY LABORATORIES will utilize its branch laboratories or qualified contract laboratories for this service. Any such laboratories will be indicated within the Laboratory Analytical Report. BRANCH LABORATORY LOCATIONS eli-b -Energy Laboratories, Inc. -Billings, MT eli-g -Energy Laboratories, Inc. -Gillette, WY eli-h -Energy Laboratories, Inc. -Helena, MT eli-r -Energy Laboratories, Inc. -Rapid City, SD eli-t -Energy Laboratories, Inc. -College Station, TX CERTIFICATIONS: USEPA: WY00002, Radiochemical WY00937; FL-DOH NELAC: E87641, Radiochemical E871 017; California: 02118CA; Oregon: WY200001; Utah: 3072350515; Virginia: 00057; Washington: C1903 ISO 17025 DISCLAIMER: The results of this Analytical Report relate only to the items submitted for analysis. ENERGY LABORATORIES, INC. -CASPER,WY certifies that certain method selections contained in this report meet requirements as set forth by the above accrediting authorities. Some results requested by the client may not be covered under these certifications. All analysis data to be submitted for regulatory enforcement should be certified in the sample state of origin. Please verify ELI's certification coverage by visiting www.energylab.com ELI appreciates the opportunity to provide you with this analytical service. For additional information and services visit our web page www.energylab.com. Page 2 of 21 EN:RGY /'1 .()I~;\1 ~)HI' ~ www.energylab.com AMJtfkII ExaIIIIa SIncI /IIZ Helena, MT 877·472·0711 -Billings, MT BoO·735·4481 -Casper, WY 888·235·0515 Gillatte, WY 818-&B8-7175 -Rapid City, SD 888-872-1225 -College Station, IX 8B8-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: September Monthly Groundwater 2011 Analyte Count Result Method: A2540 C Sample 10: MBLK1_110912 Solids, Total Dissolved TDS @ 180 C Method Blank NO Units mg/L Sample 10: LCS1_110912 Laboratory Control Sample Solids, Total Dissolved TDS @ 180 C 1000 mg/L Sample 10: C11090326-G01BOUP Sample Duplicate Solids, Total Dissolved TDS @ 180 C 1850 mg/L Sample 10: C11090347-G01AMS Sample Matrix Spike Solids, Total Dissolved TDS @ 180 C 2180 mg/L Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration Report Date: 10104/11 Work Order: C11090325 RL %REC Low Limit High Limit Run: BAL-l_110912A 10 Run: BAL-l 110912A - 10 100 90 110 Run: BAL-l 110912A - 10 Run: BAL-l_ll0912A 10 102 90 110 ND -Not detected at the reporting limit. RPO RPDLimit Qual Batch: 110912_1_SLDS-TDS-W 09/12/11 10:58 0.1 09/12/11 10:58 09/12/11 11 :02 10 09/12/11 11 :05 Page 12 of 21 EN:RGY 1\· '01-1 ,I 2""j ~_ _.energyiab.com Au/1ffU(~S1nu "$1 Helena, MT 877-472-0711 • Billings, MT Boo-135-4489 • Casper, WY 888-235-D515 Gillette, WY 818-18&-7175 • Rapid City, SD 888-172-1225 • College Station, TX 881-680-2218 QA/Qe Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: September Monthly Groundwater 2011 Analyte Count Result Units Method: A4500-CI B Sample 10: MBLK9-110926 Chloride Sample 10: C11090420-o02AMS Chloride Sample 10: C11090420-o02AMSO Chloride Sample 10: LCS35-110926 Chloride Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration Method Blank ND mg/L Sample Matrix Spike 44.2 mg/L Sample Matrix Spike Duplicate 44.2 mg/L Laboratory Control Sample 3590 mg/L Report Date: 10104/11 Work Order: C11090325 RL %REC Low Limit High Limit RPO RPOLImit Qual Batch: 110926-CL-TTR-W Run: TITRATION_11 0927A 09/27/11 13:41 1.0 Run: TITRATION_11 0927 A 09/27/11 14:27 1.0 101 90 110 Run: TITRATION_110927A 09/27/11 14:29 1.0 101 90 110 0.0 10 Run: TITRATION_11 0927A 09/27/11 14:32 1.0 101 90 110 ND -Not detected at the reporting limit. Page 13 of 21 EN:RGY l\~uPI\I _lUI! :.... www.energytab.com AMI!tkM~"'1!Z Helena, MT 871-412-0711 • BIllings, MT 800-735-4489 • Casper, WY 881-235-0515 GillBtta, WY 888-886-7175 • Rapid City, SD 888-&12-1225 • College Station, 1]( 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: September Monthly Groundwater 2011 Analyte Count Result Units Method: A4S00-S04 E Sample 10: MBLK-1_ Sulfate Sample 10: LCS21_ Sulfate Sample 10: C1109032S"()OSAMS Sulfate Sample 10: C1109032S"()OSAMSO Sulfate Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration Method Blank ND mg/L Laboratory Control Sample 5060 mg/L Sample Matrix Spike 721 mg/L Sample Matrix Spike Duplicate 724 mg/L Report Date: 10104/11 Work Order: C11090325 RL %REC Low Limit High limit RPO RPOLimlt Qual Batch: 11 0916_1_S04-TURB-W Run: TURB-2_110916A 09/16/11 10:43 10 Run: TURB-2_11 0916A 09/16/1111:19 100 105 90 110 Run: TURB-2_11 0916A 09/16/11 15:28 10 94 90 110 Run: TURB-2_110916A 09/16/11 15:35 10 95 90 110 0.4 10 ND -Not detected at the reporting limit. Page 14 of 21 EN:RGY 1\ J.o", I /"' ': -I ' www.energyiab.com bI/ftk.II~ SiDclIJU Helena, MT 877-472-0711 • BIllings, MT 800-735·44811 • Casper, WY 888-235-0515 GiIIBtta, WY 888-&8&-7175 . Rapid City, SD 888-&72-1225 . College Station, TX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: September Monthly Groundwater 2011 Analyte Count Result Units Method: E200.8 Sample 10: LRB Manganese Uranium Sample 10: LFB Manganese Uranium Sample 10: C11090254-007CMS4 Manganese Uranium Sample 10: C11090254-007CMSO Manganese Uranium Method: E200.8 Sample 10: C11090346-003CMS4 Selenium Sample 10: C11090346-003CMSO Selenium Sample 10: LRB Selenium Sample 10: LFB Selenium Qualifiers: RL -Analyte reporting limit. 2 2 2 2 MDC -Minimum detectable concentration Method Blank NO mg/L NO mg/L Laboratory Fortified Blank 0.0496 mg/L 0.0488 mg/L Sample Matrix Spike 0.0471 mg/L 0.0526 mg/L Sample Matrix Spike Duplicate 0.0501 mg/L 0.0563 mg/L Sample Matrix Spike 0.0510 mg/L Sample Matrix Spike Duplicate 0.0532 mg/L Method Blank NO mg/L Laboratory Fortified Blank 0.0501 mg/L RL 0.010 0.00030 0.0010 0.00030 0.010 0.00030 0.010 0.00030 0.0010 0.0010 0.0050 0.0010 Report Date: 10/04/11 Work Order: C11090325 %REC Low Limit High Limit RPO RPOLimit Qual Run : ICPMS4-C_11 0909A Run: ICPMS4-C_11 0909A 99 85 115 98 85 115 Run: ICPMS4-C_11 0909A 92 70 130 91 70 130 Run: ICPMS4-C_11 0909A 99 70 130 99 70 130 Run: ICPMS4-C_110913A 102 70 130 Run: ICPMS4-C_11 0913A 106 70 130 Run: ICPMS4-C_110913A Run: ICPMS4-C_11 0913A 100 85 115 Batch: R150423A 09/09/11 12 :25 09/09/11 12:30 09/09/11 16 :48 09/09/11 16:53 6.3 20 6.8 20 4.2 Batch: R150571A 09/13/11 19:05 09/13/11 19:09 20 09/13/11 13:26 09/13/11 14:27 NO -Not detected at the reporting limit. Page 150f21 EN:RGY , .... ·-OP .. \I !JPl ~, WWN.energylab.com AM/ftIAI fJIr:IIIIIIa S1IIu IIU Helena, MT 877-472-0711 • Billings, MT 800-735-4481 -Casper, WY 888-235-0515 Gillatte, WY 888-886-7175 -Rapid City, SD 888-&72-1225 -College Station, TX 688-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: September Monthly Groundwater 2011 Analyte Count Result Units Method: E353.2 Sample 10: MBLK-1 Method 81ank Nitrogen, Nitrate+Nitrite as N NO mg/L Sample 10: LCS-2 Laboratory Control Sample Nitrogen, Nitrate+Nitrite as N 2.47 mg/L Sample 10: LFB-3 Laboratory Fortified 81ank Nitrogen, Nitrate+Nitrite as N 2.04 mg/L Sample 10: C11090322-o010MS Sample Matrix Spike Nitrogen, Nitrate+Nitrite as N 1.98 mg/L Sample 10: C11090322-o010MSO Sample Matrix Spike Duplicate Nitrogen, Nitrate+Nitrite as N 2.03 mg/L Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration RL 0.20 0.10 0.10 0.10 0.10 Report Date: 10/04/11 Work Order: C11090325 %REC Low Limit High Limit RPO RPOLimit Qual 8atch: R150428 Run: TECHNICON_11 09098 09/09/11 15 :20 Run: TECHNICON_11 09098 09/09/11 15 :23 99 90 110 Run: TECHNICON_11 09098 09/09/11 15 :25 104 90 110 Run : TECHNICON_11 09098 09/09/11 16:28 101 90 110 Run: TECHNICON_1109098 09/09/11 16:30 104 90 110 2.5 10 NO -Not detected at the reporting limit. Page 16 of 21 Ei'ERGY I\dUF~.'\t .\I<il' '-' www.energylab.com AM/ffIaI baIIMa .. 1m Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 881-235-1515 GillattB, WY 81&-IB&-7175 . Rapid City, SO 888-&72-1225 . College Station, IX 881-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: September Monthly Groundwater 2011 Analyte Method: E900.1 Sample 10: MB-GA-0475 Gross Alpha minus Rn & U Count Result 3 Method Blank 0.299 Gross Alpha minus Rn & U Precision (±) 0.268 Gross Alpha minus Rn & U MDC 0.370 Units pCi/L pCi/L pCilL Sample 10: LCS-GA-0475 Gross Alpha minus Rn & U Laboratory Control Sample Sample 10: C11090162-0011MS Gross Alpha minus Rn & U Sample 10: C11090162-0011MSO Gross Alpha minus Rn & U Qualifiers: RL -Analyte reporting limit. MDC -Minimum detectable concentration 20.0 pCilL Sample Matrix Spike 52.2 pCi/L Sample Matrix Spike Duplicate 57.4 pCl/L Report Date: 10104/11 Work Order: C11090325 RL %REC Low Limit High Limit RPO RPOLlmit Qual Run: BERTHOLD 770-1 _110909A Run: BERTHOLD 770-C 110909A 94 70 130 Run : BERTHOLD 770-1 -110909A 97 70 130 Run: BERTHOLD 770-1 110909A - 109 70 130 9.5 NO -Not detected at the reporting limit. U -Not detected at minimum detectable concentration Batch: GA-0475 09/15/11 15:47 U 09/15/11 15:47 09/15/11 17:56 09/15/11 17:56 21 .6 Page 17 of 21 EN:RGY . I '-1 I www.energyiab.com AM/ffIaI~ShIU IIIS1 Helena, MT 877-472-0711 • Billings, MY 800-735-4489 • Casper, WY 881-235-0515 Gillett8, WY 886-686-7175 . Rapid City, SIJ 888-672-1225 . College Station, TX 888-690-2218 QA/Qe Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: September Monthly Groundwater 2011 Analyte Count Result Units Method: SW8260B Sample 10: 091511_LCS_ 4 15 Laboratory Control Sample Benzene 10 ug/L Carbon tetrachloride 9.7 ug/L Chloroform 10.0 uglL Chloromethane 9.4 ug/L m+p-Xylenes 20 ug/L Methyl ethyl ketone 100 ug/L Methylene chloride 9.8 ug/L Naphthalene 10 ug/L o-Xylene 9.8 ug/L Toluene 10 ug/L Xylenes, Total 29 ug/L Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Sample 10: 091511_MBLK_6 15 Method Blank Benzene NO ug/L Carbon tetrachloride NO ug/L Chloroform NO ug/L Chloromethane NO ug/L m+p-Xylenes NO ug/L Methyl ethyl ketone NO ug/L Methylene chloride NO ug/L Naphthalene NO ug/L o-Xylene NO ug/L Toluene NO ug/L Xylenes, Total NO ug/L Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Sample 10: C11090325-003EMS 15 Sample Matrix Spike Benzene 2100 ug/L Carbon tetrachloride 2100 ug/L Chloroform 3400 ug/L Chloromethane 1900 ug/L m+p-Xylenes 4000 ug/L Methyl ethyl ketone 20000 ug/L Methylene chloride 2000 ug/L Naphthalene 2200 uglL o-Xylene 1900 ug/L Toluene 2100 ug/L Xylenes, Total 5900 ug/L Qualifiers: RL -Analyte reporting limit. MOC -Minimum detectable concentration RL 1.0 1.0 1.0 1.0 1.0 20 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 20 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 100 100 100 100 100 2000 100 100 100 100 100 Report Date: 10104/11 Work Order: C11090325 %REC Low Limit High limit RPO RPOLimit Qual Batch: R150703 Run: SATURNCA_ll 0915A 09/15/11 12:51 101 70 130 97 70 130 100 70 130 94 70 130 98 70 130 104 70 130 98 70 130 103 70 130 98 70 130 104 70 130 98 70 130 92 80 120 98 70 130 88 80 130 91 80 120 Run: SATURNCA_110915A 09/15/11 14:03 99 80 120 101 70 130 88 80 120 86 80 120 Run: SATURNCA_110915A 09/15/11 20:33 103 70 130 104 70 130 108 70 130 97 70 130 100 70 130 102 70 130 101 70 130 110 70 130 95 70 130 105 70 130 98 70 130 NO -Not delecled at the reporting limit. Page 18 of 21 EN:RGY _"~L~I..,t/\.1 CHk' www.energylab.com ~~"'1f2 Helena, MT 817·472·0711 • Billings, MT 800·735·4489 • Caspar, WY 888·235·0515 Gillatte, WY 811·186·7175 • Rapid City, SD 888·172·1225 • Collage Station, 1X 888·690·2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Report Date: 10104/11 Project: September Monthly Groundwater 2011 Work Order: C11090325 Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual Method: SW8260B Batch: R150703 Sample 10: C11090325-D03EMS 15 Sample Matrix Spike Run: SATURNCA_110915A 09/15/11 20:33 Surr: 1,2-Dichlorobenzene-d4 1.0 98 80 120 Surr: Dibromofluoromethane 1.0 99 70 130 Surr: p-Bromofluorobenzene 1.0 97 80 120 Surr: Toluene-d8 1.0 88 80 120 Sample 10: C11090325-D03EMSD 15 Sample Matrix Spike Duplicate Run: SATURNCA_110915A 09/15/11 21 :09 Benzene 2000 ug/L 100 101 70 130 2.0 20 Carbon tetrachloride 2000 ug/L 100 101 70 130 3.1 20 Chloroform 3400 ug/L 100 105 70 130 1.7 20 Chloromethane 1900 ug/L 100 94 70 130 3.8 20 m+p-Xylenes 3700 ug/L 100 93 70 130 6.9 20 Methyl ethyl ketone 21000 ug/L 2000 107 70 130 4.6 20 Methylene chloride 2000 ug/L 100 102 70 130 1.6 20 Naphthalene 2200 ug/L 100 109 70 130 1.1 20 a-Xylene 1800 ug/L 100 90 70 130 4.8 20 Toluene 2000 ug/L 100 102 70 130 2.7 20 Xylenes, Total 5500 ug/L 100 92 70 130 6.2 20 Surr: 1,2-Dichlorobenzene-d4 1.0 96 80 120 0.0 10 Surr: Dibromofluoromethane 1.0 100 70 130 0.0 10 Surr: p-Bromofluorobenzene 1.0 90 80 120 0.0 10 Surr: Toluene-d8 1.0 88 80 120 0.0 10 Qualifiers: RL -Analyte reporting limit. NO -Not detected at the reporting limit. MDC -Minimum detectable concentration Page 19 of 21 EN:RGY i\t,::.J11~""1 :J1.Jj· .~ www.energylab.com ~ElaIIIM:I s.rc. 'IU Halena, MT 877-412-0711 • Billings, MT 800-735-4489 · Caspar, WY 888-235-0515 Gillatta, WY 888-888-7175 • Rapid City, so 888-872-1225 • Collage Station, 1X 888-690-2218 Workorder Receipt Checklist Denison Mines USA Corp 111111111111111111111111111111111111111111111111111111I C11090325 Login completed by: Edith McPike Reviewed by: BL2000\kschroeder Reviewed Date: 9/14/2011 Shipping container/cooler in good condition? Custody seals intact on shipping container/cooler? Custody seals intact on sampte bottles? Chain of custody present? Chain of custody signed when relinquished and received? Chain of custody agrees with sample labels? Samples in proper container/bottle? Sample containers intact? Sufficient sample volume for indicated test? All samples received within holding time? (Exclude analyses that are considered field parameters such as pH, DO, Res CI, Sulfite, Ferrous Iron, etc.) ContainerfTemp Blank temperature: Water -VOA vials have zero heads pace? Water -pH acceptable upon receipt? Contact and Corrective Action Comments: None Yes 0' Yes 0' Yes 0 Yes 0' Yes 0' Yes 0' Yes 0' Yes 0' Yes 0' Yes 0' 2.2"C On Ice Yes 0' Yes 0' Date Received: 9/9/2011 Received by: kg Carrier FedEx name: No 0 NoO No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 Not Present 0 Not Present 0 Not Present 0' No VOA vials submitted 0 Not Applicable 0 Page 20 of 21 Chain of Custody and Analytical Request Record Page ~ of ....l..-LAIJO/~A TORI! S . ------. . ....... \." _ ... _---.". __ ...... _ .. ,._ ... _ .. --.., ...... --.. _._ .• , Company Name: Project Name, PWS, Permit, Etc. Sample Origin EPA/State Compliance: D<.ni~ Min~ .s~p+ember MOf\+l,l,j G-rowtti WA+~1" ~Oll State: u'T" Yes iI No 0 Report Mail Address: Pc> B Contact Name: Phone/Fax: Email: Sampler: (Please Print) 0'1. ~O'f R~M fAlfVIv 435 fo 78 .7.Z2..1 ...,.; &t'" ~ol\:J~t ~ JAtJ~,,~ \AT ~ ''is 11 ""',. &tMrtn fP.lI.I .... CI" Invoice Address: '-J Invoice Contact & Phone: Purchase Order: Quote/Bottle Order: ~tAMc. ~(1.M,( ..) Special ReporVFormats: ~ !Mtl&l1~ ~~@M~rn[ID .. Contact ELI prior to F£~~ Cl .... RUSH sample submittal ~O"'~ 1 -.. R for charges and Cooler IO($}!' ~CD~OI t» ~ Q ~ scheduling -See L l"(~ /-.-> 0 >-ro w C Instruction Page o OW 0 EOD/EDT(Electronic Data) ~CJ)~ m ~ ~ :i I "0 o POTWIWWTP Format: 03:'8 II! 0) ~ c Comments: Rec;e;ptTemp ~l u<(/)~Q~ \0 C B u ~.? °c I o State: 0 LEVEL IV '5 .... OJI c \J 1 .. •• cu c: .c:: I-(1\ ~ ~ro.Q Cl '" j ~ E <:!)N o Other: 0 NELAC ~Iro • " ~ • ::1 On Ice: ::J cu.!:;; a; ~ C -t -.~ f-5 zCi.<!I ~Cl g. ....~ ~ ~ W "E Custody Seal E >1 ~e ~ £J w ro On Bottle Y N C\I Cf) "0 On Cooler ~: en ~ ~ ~ j i ~ .~ c C\I 1 Ci5 H Intact SAMPLE IDENTIFICATION Collection Collection 'l: :s ~ ~ --~ 6 N MATRIX \-.J Signature ~Name, Location, Interval, etc.) Date Time \J Match 1 M\I-1\ qJ"'1/11 '515 l-W ~ ~ 2 M\J -;2.5 1CV7/1/ 11\0 I-W ~ ~- 3 MW-~b ev-r/\f e>t:\\S (D-W '/., ~ '" 'f. "'/. ~ IQ) nnn ~ .MW-3~ 1'111//\ IDI.{~ -:!>-w )( j.. Ix ~ 5 MW-~1 caJrJll )4\0 ;2.-\V Y. .~ y.. I~ ~ 6 Mv.>-~ ~11/11 );t'40 It.l.-w I~ 'f.. ~ 7 Mw _ ~b 1/7/1\ l:t~O I-W 'I.. 'f... ~ 8 -1i",~ '}3.b"k Ln tt 2 lIi!ll ~ff#LUaf 9 liPiD /VAIIi/. ~ I~ 10 I ~ Custody :z:; blf:iJtflw q/~;~rro\l30 """, .. AJU~ llna;;j .. Received by (print): Datemme: Signature: Record RlilinQIJlslfed by (pfinl~ ..j Dalel1lmei Signature: V ReceIVed by (pfln!): Datemme: Signature: MUST be . Signed K_lvecJ DY LaDOralOry: (r:tf~il '13 fa ~~4-Sample Disposal: Return to Client: Lab Disposal: In certain Circumstances, samples submitted to Energy Laboratories, Inc. may be subcontracted to other certified laboratories in order to complete the analysis requested. This serves as notice of this possibility. All sub-contract data will be clearly notated on your analytical report. VISit our web site at www.energylab.com for additional information, downloadable fee schedule, forms, and links. TabG Quality Assurance and Data Validation Tables G-1A: Routine Field Data QA/QC Evaluation Time Req'd for 2 Time Pumped Amount Well Sample-Date Casings (min) Sufficient? Conductance RPD(%) pH RPD(%) Temp Cq RPD(%) Redox Potential (Eh) RPD(%) Turbidity (NTU) MW-2 8/8/2011 113.74 120 Y 2590 2594 0.15 6.75 6.71 0.59 16.49 16.61 0.73 370 368 0.54 0 0 MW-3 8/10/2011 46.57 53 Y 5839 5829 0.17 6.33 6.32 0.16 15.78 15.8 0.13 413 407 1.46 0 0 MW-3A 8Jt 11201 1 60.46 45 Pumped dry 6189 NC 6.19 NC 17.09 NC 458 NC 0 MW-5 8/9/2011 194.99 200 Y 2906 2901 0.17 7.24 7.22 0.28 15.93 15.91 0.13 141 140 0.71 7.2 7.22 MW-11 8/3/2011 247.05 250 Y 2950.0 2945.0 0.17 7.25 7.25 0.00 15.55 15.59 0.26 113 112 0.89 16.3 16.1 MW-l2 81912011 131.80 120 Pumped dry 4155 NC 6.13 NC 16.64 NC 360 NC 16.1 MW-14 8/3/2011 148.14 150 Y 2912 2948 1.23 6.22 6.23 0.16 15.87 15.93 0.38 261 259 0.77 0 0 MW-14 Resample 8/30/2011 149.73 155 Y 4064 4065 0.02 6.41 6.41 0.00 15.59 15.4 1.23 244 244 0.00 0 0 MW-18 8110/2011 383.67 390 Y 3500 3537 1.05 5.95 5.95 0.00 16.28 16.35 0.43 306 302 1.32 0 0 MW-18 Resample 9/21/2011 383.67 390 Y 3432 3430 0.06 6.31 6.3 0.16 18.80 18.80 0.00 412 405 1.71 0 0 MW-19 7/20/2011 586.40 600 Y 1905 1901 0.21 6.65 6.65 0.00 15.18 15.15 0.20 472 470 0.42 3.8 3.8 MW-23 8/412011 112.39 100 Pumped dry 2610 NC 6.38 NC 18.8 NC 432 NC 22.1 MW-24 8/412011 36.45 3S Pumped dry 3918 NC 6.45 NC 22.34 NC 196 NC 0 MW-25 8/312011 242.78 260 Y 3218 3227 0.28 6.42 6.42 0.00 15.41 15.33 0.52 249 249 0.00 0 0 MW -25 Rcsample 8/30/2011 244.16 250 Y 3317 3314 0.09 6.54 6.54 0.00 15.33 15.35 0.13 528 520 1.53 0 0 MW-26 8/3/2011 Continuously pumped well 3549 NC 6.07 NC 15.62 NC 403 NC 0 MW-26 Rcsamplc 8/3012011 Conlinuously pumped well 3614 NC 6.58 NC 16.57 NC 414 NC 0 MW-27 8/8/2011 263.78 270 Y 1512 1520 0.53 6.38 6.39 0.16 16.62 16.81 1.14 361 356 1.39 8.1 8.1 MW-28 8/812011 198.18 200 Y 4067 4071 0.10 5.82 5.78 0.69 15.85 15.81 0.25 462 460 0.43 0 0 MW-29 819/2011 149.55 150 Y 4844 4840 0.08 6.23 6.2 0.48 15.07 15.05 0.13 248 247 0.40 16.9 17 MW-30 8/3/2011 201.01 210 Y 2120 2117 0.14 6.60 6.61 0.15 15.81 15.8 0.06 228 226 0.88 0 0 MW-31 8/2/2011 367.48 370 Y 1915 1913 0.10 6.66 6.67 0.15 15.51 15.49 0.13 450 448 0.45 0 0 MW-32 8/2/2011 338.23 340 Y 4106 4112 0.15 6.09 6.1 0.16 15.17 15.18 0.07 218 216 0.92 16.9 17.1 MW-32 Resample 8/30/2011 339.43 405 Y 4109 4119 0.24 6.21 6.2 0.16 15.6 15.48 0.77 207 207 0.00 8 8.1 MW-35 8/2/2011 72.70 75 Y 4333 4324 0.21 6.25 6.25 0.00 15.35 15.35 0.00 306 305 0.33 0 0 MW-35 Resample 8/30/2011 74.02 80 Y 4286 4298 0.28 6.40 6.4 0.00 16.19 16.15 0.25 246 245 0.41 0 0 MW-36 8/9/2011 67.04 115 Y 359 361.2 0.61 6.57 6.57 0.00 16.79 16.81 0.12 308 304 1.31 0 0 MW-37 8/1112011 NA 4716 NC 6.86 NC 16.43 NC 406 NC 174.6 The QAP states that turbidity should be less than 5 Nephelometric Turbidity Units (HNTV") prior to sampling unless the well is characterized by water that has a higher turbidity. The QAP does not require that tUrbidity measurements be less than 5 NTU prior to sampling. As such, the noted observations regarding turbidity measurements less than 5 NTU are included for information purposes only. MW -26 is a continuously pumped well. Per the QAP, only one set of parameters are required to be collected from continuously pumped wells. Well was pumped dry N/ A = The amount of water in the well was insufficient to pump. The pump was not able to operate due to the minimal amount of water. The well was sampled with a bailer. NC = Not calculated. >5NTU RPD(%) N 0.00 N 0.00 N NC Y 0.28 Y 1.23 Y NC N 0.00 N 0.00 N 0.00 N 0.00 N 0.00 Y NC N NC N 0.00 N 0.00 N NC N NC Y 0.00 N 0.00 Y 0.59 N 0.00 N 0.00 Y 1.18 Y 1.24 N 0.00 N 0.00 N 0.00 Y NC G-IB: Acelerated Field Data QA/QC Evaluation Time Req'd for 2 Time Pumped Amount Well Sample Date Casings (min) Sufficient? Conductance RPD(%) pH Accelerated May Monthly MW-11 7/6/2011 247.1 290.0 Y 2907 2908 0.03 7.04 7.07 MW-14 7/5/2011 149.0 165.0 Y 3936 3936 0.00 6.45 6.40 MW-25 7/6/2011 242.9 300.0 Y 3218 3218 0.00 6.31 6.29 MW-26 7/6/2011 NA 3471 NC 6.35 MW-30 7/5/2011 201.3 205.0 Y 2064 2061 0.15 6.66 6.65 MW-31 7/5/2011 368.4 370.0 Y 1840 1832 0.44 6.62 6.64 MW-35 7/20/2011 72.5 75.0 Y 2284 2286 0.09 6.51 6.49 Accelerated June Monthly MW-11 91712011 247.7 250.0 Y 2827 2838 0.39 7.29 MW-14 9/8/2011 149.1 152.0 Y 4053 4053 0.00 6.5 MW-25 91712011 242.6 245.0 Y 3326 3323 0.09 6.54 MW-26 91712011 NA 3569 NC 6.71 MW-30 91712011 201.6 205.0 Y 2148 2148 0.00 6.8 MW-31 9/6/2011 368.0 370.0 Y 1918 1920 0.10 7.03 MW-35 91712011 72.6 75.0 Y 16.9 16.3 3.61 6.44 The QAP states that turbidity should be less than 5 Nephelometric Turbidity Units (UNTU") prior to sampling unless the well is characterized by water that has a higher turbidity. The QAP does not require that turbidity measurements be less than 5 NTU prior to sampling. As such, the noted observations regarding turbidity measurements less than 5 NTU are included for information purposes only. MW-26 is a continuously pumped well. 7.29 6.5 6.54 6.8 7.03 6.47 RPD(%) Temp ('C) RPD(%) Redox Potential (Eb) RPD(%) Turbidity (NTU) <5 (NTU) RPD(%) 0.43 15.60 15.61 0.06 93 93 0.00 0 0 y 0.00 0.78 15.59 15.6 0.06 38 39 2.60 <1 <1 Y 0.00 0.32 15.22 15.21 0.07 110 110 0.00 1.6 1.6 Y 0.00 NC 15.37 NC 181 NC <1 Y NC 0.15 15.07 15.08 0.07 158 161 1.88 <1 <1 Y 0.00 0.30 15.64 15.59 0.32 229 229 0.00 <1 <1 Y 0.00 0.31 15.51 15.52 0.06 299 295 1.35 0 0 y 0.00 0.00 16.13 16.25 0.74 118 118 0.00 42.2 4Q.9 N 3.13 0.00 15.12 15.18 0.40 452 446 1.34 0 0 y 0.00 0.00 15.37 15.39 0.13 253 254 0.00 2.2 2.3 Y 4.44 NC 15.11 NC 358 NC 0 Y 0.00 0.00 15.26 15.31 0.33 281 281 0.00 0 0 y 0.00 0.00 15.41 15.36 0.32 450 444 1.34 0 0 y 0.00 0.46 15.67 15.99 2.02 247 247 0.00 0 0 y 0.00 G-2A: Holding Time Evaluation QAPHolding MW-2 MW-3 MW-3A MW-S Constituent Time 8/8/2011 8110/2011 8/1112011 8/9/2011 2-Butanone (MEK) 14 days ------- Acetone 14 days ------- Ammonia (as N) 28 days ----- Arsenic 6 months --.-- Benzene 14 days ------ Beryllium 6 months ------- Cadmium 6 months ------ Carbon Tetrachloride 14 days -'----- Chloride (mgIL) 28 days ------ Chloroform 14 days ------- Chloromethane 14 days ------- Chromium 6 months ------- Cobalt 6 months ---,---- Copper 6 months ------ Oichloromethane (Methylene Chloride) 14 days ----- Fluoride (MgIL) 28 days --5.1 days ---- Gross Alpha minus Rn & U MOC 6 months 24.2 days ----- Gross Alpha minus Rn & U Precision (±) 6 months 24.2 days ----- Gross Alpha minus Rn & U 6 months 24.2 days ----- Iron 6 months ------ Lab pH (S.U.) ------- Lead 6 months -------- Manganese 6 months ------- Mercury 28 days -------- Molybdenum 6 months -------- Naphthalene 14 days -------- Nickel 6 months ------- Nitrate + Nitrite (as N) 28 days -------- Selenium 6 months --6.7 days 5.8 days - Silver 6 months ------- Sulfate CmglL) 28 days ----11A days -- 'rOS (mgIL) 7 days ----1.4 days -- Tetrahydrofuran 14 days ------- Thallium 6 months -------- Tin 6 months -------- Toluene 14 days ------ Uranium 6 months ------8.2 days Vanadium 6 months ------- Xylenes (total) 14 days ----,---- Zinc 6 months ------- NC Balance (± 5) BALANCE-W --------- Anions BALANCE-W ---------- Bicarbonate as HC03 14 days -------- Calcium 6 months ------- Carbonate as C03 14 days ------- Cations BALANCE-W ------- Magnesium 6 months ----- Potassium 6 months ------- Sodium 6 months ------- G-2A: HoldiJlg Time Evaluation QAPHolding MW-11 MW-12 MW-14 MW-14 Constituent Time 8/312011 8/9/2011 8/3/2011 8/30/2011 2-Butanone (MEK) 14 days 5.3 days -5.2 days - Acetone 14 days 5.3 days -5.2 days -- Ammonia (as N) 28 days 8.2 days ---3.1 days Arsenic 6 months 5.9 days ---3.1 days Senzene 14 days 5.3 days --5.2 days - Seryllium 6 months 5.9 days ---8.3 days Cadmium 6 months 5.9 days ---3.1 days Carbon Tetrachloride 14 days 5.3 days -5.2 days -- Chloride (mglL) 28 days 7.1 days --6.9 days - Chloroform 14 days 5.3 days --5.2 days - Chloromethane 14 days 5.3 days .-5.2 days - Chromium 6 months 5.9 days -.-_.-3.1 days Cobalt 6 months 5.9 days ----3.1 days Copper 6 months 5.9 days ----3.1 days Dichloromethane (Methylene Chloride) 14 days 5.3 days -5.2 days - Fluoride (MglL) 28 days 5.1 days -5 days .- Gross Alpha minus Rn & U MDC 6 months 15.1 days .. -16.1 days Gross Alpha minus Rn & U Precision (±) 6 months 15.1 days ---16.1 days Gross Alpha minus Rn & U 6 months 15.1 days ---16.1 days [ron 6 months 12.1 days _. --15 days Lab pH (S.u.) --2.2 days -2.1 days - Lead 6 months 5.9 days ----3.1 days Manganese 6 months 5.9 days --3.1 days Mercury 28 days 5.9 days ---3.1 days Molybdenum 6 months 5.9 days ---3.1 days Naphthalene 14 days 5.3 days -5.2 days -- Nickel 6 months 5.9 days ---7 days Nitrate + Nitrite (as N) 28 days 5.1 days ---2.2 days Selenium 6 months 5.9 days 7.8 days --3.1 days Silver 6 months 5.9 days ----3.1 days Sulfate (mgll) 28 days 19.2 days -19.1 days -- TDS (mglL) 7 days 2.3 days --2.2 days -- Tetrah ydrofuran 14 days 2.4 days --2.4 days - Thallium 6 months 5.9 days --.-3.1 days Tin 6 months 5.9 days ---3.1 days Toluene 14 days 5.3 days -5.2 days _. Uranium 6 months 5.9 days ----3.1 days Vanadium 6 months 5.9 days ----3.1 days Xylenes (total) 14 days 5.3 days --5.2 days -- Zinc 6 months 28.1 days ---3.1 days AlC Balance (± 5) BALANCE-W -27 days --64.1 days - Anions BALANCE-W -27 days .. 64.1 days -- Bicarbonate as HC03 14 days 2.3 days -2.2 days -- Calcium 6 months 12.1 days --.. 15 days Carbonate as C03 14 days 2.3 days --2.2 days -- Cations BALANCE-W .. 27 days --64.1 days _. Magnesium 6 months 12.1 days ----15 days Potassium 6 months 12.1 days ----15 days Sodium 6 months 12.1 days ----15 days G-2A: Holding Time Evaluation QAPHolding MW-18 MW·18 MW-19 MW-23 Constituent Time 8/10/2011 9/21/2011 7/20/2011 8/412011 2-Butanone (MEK) 14 days ------ Acetone 14 days ------- Ammonia (as N) 28 days ------- Arsenic 6 months ----- Benzene 14 days ------- Beryllium 6 months ------- Cad mi1J m 6 months ------ Carbon Tetrachloride 14 days ------- Chloride CmglL) 28 days ------- Chloroform 14 days ------ Chloromethane 14 days ------ Chromium 6 months ------ Cobalt 6 months ------- Copper 6 months -------- Dichloromethane (Methylene Chloride) 14 days ------- Fluoride (MglL) 28 days ----- Gross Alpha minus Rn & U MDC 6 months ------ Gross Alpha minus Rn & U Precision (±) 6 months ------ Gross Alpha minus Rn & U 6 months ------ [ron 6 months ------ Lab pH (S.U.) --------- Lead 6 months ------- Manganese 6 months ------ Mercury 28 days ------ Molybdenum 6 months ------ Naphthalene 14 days ------- Nickel 6 months ------- Nitrate + Nitrite (as N) 28 days ------- Selenium 6 months -------- Silver 6 months -------- Sulfate (mgIL) 28 days 12.1 days ------ TDS (mglL) 7 days 2.1 days ------ Tetrah ydrofu ran 14 days ---- --- Thallium 6 months 7.2 days 9.3 days -- Tin 6 months ------- Toluene 14 days ------ Uranium 6 months -------- Vanadium 6 months ------ Xylenes (total) 14 days ----- Zinc 6 months -------- AlC Balance (± 5) BALANCE-W -------- Anions BALANCE-W --------- Bicarbonate as HC03 14 days ------ Calcium 6 months ------ Carbonate as C03 14 days ------- Cations BALANCE-W --------- Magnesium 6 months ------ Potassium 6 months ----- Sodium 6 months ------- G-2A: Holding Time Evaluation QAP Holding MW-24 MW-2S MW-2S MW-26 Constituent Time 8/4/2011 8/3/2011 8/30/2011 8/312011 2-Butanone (MEK) 14 days --5.3 days --6 days Acetone 14 days --5.3 days --6 days Ammonia (as N) 28 days --8.2 days --8.3 days Arsenic 6 months ---3.2 days - Benzene 14 days --5.3 days -6 days Beryllium 6 months ---8.4 days - Cadmium 6 months 5 days --3.2 days - Carbon Tetrachloride 14 days --5.3 days --6 days Chloride (mgIL) 28 days .-7.1 days -: 7.2 days Chloroform 14 days --5.3 days -5.9 days Chloromethane 14 days --5.3 days --6 days Chromium 6 months ----7.1 days - Cobalt 6 months . --. 7.1 days -- Copper 6 months ---3.2 days .- Dichloromethane (Methylene Chloride) 14 days --5.3 days -6 days Fluoride (MglL) 28 days --5.1 days -5.2 days Gross Alpha minus Rn & U MDC 6 months ---16.3 days -- Gross Alpha minus Rn & U Precision (±) 6 months _. --16.3 days - Gross Alpha minus Rn & U 6 months ----16.3 days -- [ron 6 months ---15.2 days -- Lab pH (S.U.) ----2.2 days --2.3 days Lead 6 months ----3.2 days -- Manganese 6 months ----7.1 days -- Mercury 28 days ---3.2 days -- Molybdenum 6 months ---3.2 days -- Naphthalene 14 days --5.3 days --6 days Nickel 6 months ----7.1 days -- Nitrate + Nitrite (as N) 28 days --5.1 days -5.2 days Selenium 6 months ---3.2 days - Silver 6 months ----3.2 days - Sulfate (mgIL) 28 days -19.2 days --19.3 days TDS (mglL) 7 days --6.2 days -2.4 days Tetrahydrofuran 14 days -2.4 days --2.4 days Thallium 6 months 5 days -,-3.2 days -- Tin 6 months ---3.2 days -- Toluene 14 days --5.3 days --6 days Uranium 6 months ----3.2 days -- Vanadium 6 months ---7.1 days -- Xylenes (total) 14 days --5.3 days -6 days Zinc 6 months --3.2 days -- AlC Balance (± 5) BALANCE-W --64.2 days --64.3 days Anions BALANCE-W --64.2 days --64.3 days Bicarbonate as HC03 14 days -2.3 days -2.4 days Calcium 6 months ---15.2 days - Carbonate as C03 14 days --2.3 days --2.4 days Cations BALANCE-W ----64.2 days --64.3 days Magnesium 6 months ----15.2 days - Potassium 6 months ----15.2 days -- Sodium 6 months ---15.2 days -- G-2A: Holding Time Evaluation QAPHolding MW-26 MW-27 MW-28 MW-29 Constituent Time 8/30/2011 8/8/2011 8/8/2011 8/9/2011 2-Butanone (MEK) 14 days -------- Acetone 14 days ------- Ammonia (as N) 28 days ------ Arsenic 6 months 3.2 days ------ Benzene 14 days ------- Beryllium 6 months 9.5 days ------ Cadmium 6 months 3.2 days ------ Carbon Tetrachloride 14 days ------ Chloride (mg/L) 28 days --14 days 14 days -- Chloroform 14 days -------- Chloromethane 14 days ------ Chromium 6 months 8.4 days ----- Cobalt 6 months 9.5 days --- Copper 6 months 8.4 days --- Dichloromethane (Methylene Chloride) 14 days ------ Fluoride (MgIL) 28 days ------ Gross Alpha minus Rn & U MDC 6 months 16.3 days 24.3 days -- Gross Alpha minus Rn & U Precision (±) 6 months 16.3 days 24.3 days --- Gross Alpha minus Rn & U 6 months 16.3 days 24.3 days --- Iron 6 months 15.2 days --35.2 days Lab pH (S.U.) ---_. --- Lead 6 months 3.2 days ---- Manganese 6 months 9.5 days ----- Mercury 28 days 3.2 days ---- Molybdenum 6 months 3.2 days ---- Naphthalene 14 days ----- Nickel 6 months 8.4 days ----- Nitrate + Nitrite (as N) 28 days _. 8.1 days -- Selenium 6 months 3.2 days ---- Silver 6 months 3.2 days ----- Sulfate (mglL) 28 days -14.2 days -- TDS (mglL) 7 days -4.2 days --- Tel rahydrofu ran 14 days ------- Thallium 6 months 3.2 days ---- Tin 6 months 3.2 days ---- Toluene 14 days ------ Uranium 6 months 7.1 days ---- Vanadium 6 months 8.4 days ----- Xylenes (total) 14 days ------- Zinc 6 months 3.2 days ----- NC Balance (± 5) BALANCE-W ---------- Anions BALANCE-W --------- Bicarbonate as RC03 14 days ------- Calcium 6 months 15.2 days ----- Carbonate as C03 14 days -------- Cations BALANCE-W ---------- Magnesium 6 months 15.2 days ------ Potassium 6 months 15.2 days ------ Sodium 6 months 15.2 days ------ G-2A: Holding Time Evaluation QAPHolding MW-30 MW-31 MW-32 MW-32 Constituent Time 8/3/2011 8/2/2011 8/2/2011 8/30/2011 2-Butanone (MEK) 14 days 5.2 days 6.2 days ---- Acetone 14 days 5.2 days 6.2 days ---- Ammonia (as N) 28 days 8 days 9 days -- Arsenic 6 months 5.7 days 6.8 days --3.1 days Benzene 14 days 5.2 days 6.2 days --- Beryllium 6 months 5.7 days 6.8 days -8.3 days Cadmium 6 months 5.7 days 6.8 days -7 days Carbon Tetrachloride 14 days 5.2 days 6.2 days .--- Chloride (mgIL) 28 days 6.9 days 7.9 days -- Chloroform 14 days 5.2 days 6.2 days --- Chloromethane 14 days 5.2 days 6.2 days --- Chromium 6 months 5.7 days 6.8 days -3.1 days Cobalt 6 months 5.7 days 6.8 days -3.1 days Copper 6 months 5.7 days 6.8 days --3.1 days Dichloromethane (Methylene Chloride) 14 days 5.2 days 6.2 days --- Fluoride (MgIL) 28 days 4.9 days 5.9 days --- Gross Alpha minus Rn & U MOC 6 months 14.9 days 16.1 days --16.1 days Gross Alpha minus Rn & U Precision (±) 6 months 14.9 days 16.1 days --16.1 days Gross Alpha minus Rn & U 6 months 14.9 days 16.1 days -16.1 days Iron 6 months 12 days 13 days --15.1 days Lab pH (S.U.) -2.1 days 3.1 days ---- Lead 6 months 5.7 days 6.8 days --3.1 days Manganese 6 months 5.7 days 6.8 days --3.1 days Mercury 28 days 5.7 days 6.8 days --3.1 days Molybdenum 6 months 5.7 days 6.8 days --3.1 days Naphthalene 14 days 5.2 days 6.2 days ---- Nickel 6 months 5.7 days 6.8 days --7 days Nitrate + Nitrite (as N) 28 days 4.9 days 6 days ---- Selenium 6 months 5.7 days 6.8 days --3.1 days Silver 6 months 5.7 days 6.8 days --3.1 days Sulfate (mglL) 28 days 19.1 days 20.1 days ---- TDS (mglL) 7 days 2.1 days 3.1 days ---- Tetrahydrofuran 14 days 2.4 days 3.4 days ---- Thallium 6 months 5.7 days 6.8 days --3.1 days Tin 6 months 5.7 days 6.8 days --3.1 days Toluene 14 days 5.2 days 6.2 days ---- Uranium 6 months 5.7 days 6.8 days --7 days Vanadium 6 months 5.7 days 6.8 days --3.1 days Xylenes (total) 14 days 5.2 days 6.2 days ---- Zinc 6 months 27.2 days 28.2 days --3.1 days AlC Balance (± 5) BALANCE-W -26.8 days 27.8 days --- Anions BALANCE-W -26.8 days 27.8 days --- Bicarbonate as HC03 14 days 2.2 days 3.2 days --- Calcium 6 months 12 days 13 days -15.1 days Carbonate as C03 14 days 2.2 days 3.2 days ---- Cations BALANCE-W --26.8 days 27.8 days --- Magnesium 6 months 12 days 13 days --15.1 days Potassium 6 months 12 days 13 days -15.1 days Sodium 6 months 12 days 13 days --15.1 days G-2A: Holding Time Evaluation QAPHolding MW-35 MW-35 MW-65 MW-65 Constituent Time 8/2/2011 8/30/2011 8/312011 8/30/2011 2-Butanone (MEK) 14 days 6.2 days -5.7 days - Acetone 14 days 6.2 days --5.7 days -- Ammonia (as N) 28 days 9 days -8.3 days - Arsenic 6 months -3.1 days -3.2 days Benzene 14 days 6.2 days -5.7 days - Beryllium 6 months -8.3 days --8.4 days Cadmium 6 months --3.1 days --3.2 days Carbon Tetrachloride 14 days 6.2 days --5.7 days -- Chloride (mgIL) 28 days 7.9 days --19.1 days - Chloroform 14 day_s 6.2 days -7.3 days -- Chloromethane 14 days 6.2 days --5.7 days -- Chromium 6 months --8.3 days --3.2 days Cobalt 6 months --8.3 days --3.2 days Copper 6 months --7 days --3.2 days Dichloromelhane (Methylene Chloride) 14 days 6.2 days --5.7 da)'s -- Pluoride (Mg/L) 28 days 5.9 days --5.2 days -- Gross Alpha minus Rn & U MDC 6 months --16.1 days --16.2 days Gross Alpha minus Rn & U Precision (±) 6 months --16.1 days --16.2 days Gross Alpha minus Rn & U 6 months --16.1 days --16.2 days Iron 6 months --15 days --15.2 days Lab pH (S.U.) --3.1 days --2.3 days -- Lead 6 months --3.1 days --3.2 days Manganese 6 months --8.3 days --3.2 days Mercury 28 days --3.1 days --3.2 days Molybdenum 6 months --3.1 days -3.2 days Naphthalene 14 days 6.2 days --5.7 days -- Nickel 6 months --7 days --7.1 days Nitrate + Nitrite (as N) 28 days 6 days -5.2 days - Selenium 6 months --3.1 days -3.2 days Silver 6 months --3.1 days --3.2 days Sulfate (mgIL) 28 days 20.1 days -19.3 days --ms (mgfL) 7 days 3.1 days --2.4 days - Tetrahydrofuran 14 days 3.4 days --2.4 days - Thallium 6 months -3.1 days --3.2 days Tin 6 months --3.1 days .-3.2 days Toluene 14 days 6.2 days -5.7 days - Uranium 6 months --7 days -3.2 days Vanadium 6 months -3.1 days --3.2 days Xylenes (total) 14 days 6.2 days -5.7 days -- Zinc 6 months -3.1 days --3.2 days AlC Balance (± 5) BALANCE-W -,-65.1 days -64.3 days - Anions BALANCE-W --65.1 days -64.3 days -- Bicarbonate as HC03 14 days 3.2 days --2.5 days - Calcium 6 months --15 days --15.2 days Carbonate as C03 14 days 3.2 days --2.5 days -- Cations BALANCE-W --65.1 days --64.3 days - Magnesium 6 months -15 days --15.2 days Potassium 6 months --15 days -15.2 days Sodium 6 months --15 days -15.2 days G-2A-Holding Time Evaluation QAPHolding MW-70 MW-70 Constituent Time 8/10/2011 9/2112011 '2-Butanone (MEK) 14 days ---- Acetone 14 days --- Ammonia (as N) 28 days ---- Arsenic 6 months --- Benzene 14 days ---- Beryllium 6 months ---- Cadmium 6 months ---- Carbon Tetrachloride 14 days --- Chloride (mg/L) 28 days ---- Chloroform 14 days --- Chloromethane 14 days ---- Chromium 6 months ---- Cobalt 6 months ---- Copper 6 months ---- Oichloromethane (Methylene Chloride) 14 days --- Fluoride (Mg/L) 28 days ---- Gross Alpha minus Rn & U MOC 6 months --- Gross Alpha minus Rn & U Precision (±) 6 months --- Gross Alpha minus Rn & U 6 months --- Iron 6 months --- f-,ab pH (S.u.) ---- Lead 6 months ---- Manganese 6 months ---- Mercury 28 days --- Molybdenum 6 months ---- Naphthalene 14 days ---- Nickel 6 months ---- Nitrate + Nitrite (as N) 28 days --- Selenium 6 months -- Silver 6 months --- Sulfate (mgIL) 28 days 12.1 days - TOS (mgIL) 7 days 2.1 days -- Telrahydrofuran 14 days --- Thallium 6 months -5.7 days Tin 6 months --- Toluene 14 days -- Uranium 6 months -- Vanadium 6 months --- Xylenes (total) 14 days --- Zinc 6 months --- AlC Balance (± 5) BALANCE-W ----- Anions BALANCE-W ------ Bicarbonate as HC03 14 days --- Calcium 6 months ---- Carbonate as C03 14 days --- Cations BALANCE-W ------ Magnesium 6 months ---- Potassium 6 months --- Sodium 6 months -. -- G 2B Hid' TEl -0 109 tme va uatlOn-A cce erate d samp es QAPHolding MW-14 Constituent Time MW-11 7/6/2011 7/5/2011 MW-257/6/2011 2-Butanone (MEK) 14 days ----- Acetone 14 days ---- Ammonia (as N) 28 days ----- Arsenic 6 months ----- Benzene 14 days ---- Beryllium 6 months ----- Cadmium 6 months --- Carbon Tetrachloride 14 days ---- Chloride (mg/L) 28 days _. --- Chloroform 14 days ----- Chloromethane 14 days -. ---- Chromium 6 months ------ Cobalt 6 months ---- C()Pl'er 6 months ------ Dichloromethane (Methylene Chloride) 14 days ----- Field pH (S.U.) Immediate Fluoride (Mg/L) 28 d<lY~ ----- Gross Alpha minus Rn & U MDC 6 months ------ Gross Alpha minus Rn & U Precision (±) 6 months ----- Gross Alpha minus Rn & U 6 months ------ Iron 6 months ----- LabpH (S.U.) ----- Lead 6 months --- Manganese 6 months 23 days --- Mercury 28 days ---- Molybdenum 6 months --- Naphthalene 14 days ---- Nickel 6 months ---- Nitrate + Nitrite (as N) 28 days --- Selenium 6 months ---- Silver 6 months ----- Sulfate (mg/L) 28 days ----- TDS (mg/L) 7 days ------ Tetrahydrofuran 14 days 2.4 days ---- Thallium 6 months ------ Tin 6 months ---- Toluene 14 days ----- Uranium 6 months --4.9 days Vanadium 6 months ---- Xylenes (total) 14 days ---- Zinc 6 months ---- AlC Balance (± 5) BALANCE-W ------- Anions BALANCE-W -------- Bicarbonate as HC03 14 days ----- Calcium 6 months ---- Carbonate as C03 14 days ----- Cations BALANCE-W ------ Magnesium 6 months ----- Potassium 6 months ---- Sodium 6 months ------ G-2B: Holding Time Evaluation -Accelerated samples QAPHolding Constituent Time MW-267/6/2011 MW-30 7/5/2011 MW-317/5/2011 2-Butanone (MEK) 14 days 8.3 days ---- Acetone 14 days 8.3 days --- Ammonia (as N) 28 days ----- Arsenic 6 months ------ Benzene 14 days 8.3 days --- Beryllium 6 months ---- Cadmium 6 months ----- Carbon Tetrachloride 14 days 8.3 days --- Chloride (mgIL) 28 days 5.2 days 6.1 days 6 days Chloroform 14 days 8.3 days --- Chloromethane 14 days 8.3 days --- Chromium 6 months ---- Cobalt 6 months ---- Copper 6 months ----- Dichloromethane (Methylene Chloride) 14 days 8.3 days --- Field pH (S.u.) Immediate Fluoride (MglL) 28 days ----- Gross Alpha minus Rn & U MDC 6 months 12.2 days --- Gross Alpha minus Rn & U Precision (±) 6 months 12.2 days ---- Gross Alpha minus Rn & U 6 months 12.2 days --- Iron 6 months ----- Lab pH (S.U.) ----- Lead 6 months ---- Manganese 6 months ----- Mercury 28 days ----- Molybdenum 6 months ----- Naphthalene 14 days 8.3 days --- Nickel 6 months ----- Nitrate + Nitrite (as N) 28 days 6.3 days 7.1 days 7 days Selenium 6 months -8 days -- Silver 6 months ----- Sulfate (mglL) 28 days ----21.1 days TDS (mglL) 7 days 2.4 days --3.1 days Telrahydrofuran 14 days ----- Thallium 6 months ----- Tin 6 months ------ Toluene 14 days 8.3 days ---- Uranium 6 months 5.1 days -- Vanadium 6 months ----- Xylenes (total) 14 days 8.3 days -- Zinc 6 months ---- AlC Balance (± 5) BALANCE-W ------- Anions BALANCE-W ----'--- Bicarbonate as HC03 14 days ------ Calcium 6 months ------ Carbonate as C03 14 days ------ Cations BALANCE-W ------- Ma!!Tlesium 6 months ------ Potassium 6 months ----- Sodium 6 months ----- G-2B' Holding Time Evaluation -Accelerated samples QAPHolding MW-35 MW-14 Constituent Time 7/20/2011 MW-119/7/2011 9/8/2011 2-Butanone (MEK) 14 days ------ Acetone 14 days ---- Ammonia (as N) 28 days ----- Arsenic 6 months ------ Benzene 14 days ----- Beryllium 6 months ----- Cadmium 6 months ----- Carbon Tetrachloride 14 days ----- Chloride (mg/L) 28 days ---- Chloroform 14 days ----- Chloromethane 14 days ---- Chromium 6 months ---- Cobalt 6 months ---- Copper 6 months ---- Dichloromethane (Methylene Chloride) 14 days --- Field pH (S.U.) Immediate Fluoride (Mg/L) 28 days ----- Gross Alpha minus Rn & U MDC 6 months ----- Gross Alpha minus Rn & U Precision (±) 6 months ---- Gross Alpha minus Rn & U 6 months ----- Iron 6 months ------ Lab pH (S.U.) ------ Lead 6 months ------ Manganese 6 months 16.6 days 2.2 days -- Mercury 28 days ----- Molybdenum 6 months ------ NaQ.hthalene 14 days ----- Nickel 6 months ---- Nitrate + Nitrite (as N) 28 days ----- Selenium 6 months ----- Silver 6 months ----- Sulfate (mg/L) 28 days ---- TDS (mg/L) 7 days ---- Tetrahydrofur81l 14 days --2.4 days -- Thallium 6 months ----- Tin 6 months ----- Toluene 14 days ----- Uranium 6 months 16.6 days -- Vanadium 6 months ----- Xylenes (total) 14 days ----- Zinc 6 months ----- AlC Balance (± 5) BALANCE-W ------- Anions BALANCE-W ------- Bicarbonate as HC03 14 days ---- Calcium 6 months ----- Carbonate as C03 14 days ---- Cations BALANCE-W ------- Magnesium 6 months ----.. '- Potassium 6 months ----- Sodium 6 months ---- G 2B Hid' TEl -0 lllg lme va uatlOn-A cce erate d samp es QAPHolding Constituent Time MW-2591712011 MW-2691712011 MW-30 91712011 2-Butanone (MEK) 14 days -8.4 days -- Acetone 14 days -8.4 days -- Ammonia (as N) 28 days ----- Arsenic 6 months ---- Benzene 14 days --8.4 days -- Beryllium 6 months ---- Cadmium 6 months ------ Carbon Tetrachloride 14 days --8.4 days -- Chloride (mg/L) 28 days -20.2 days 20.1 days Chloroform 14 days --8.4 days - Chloromethane 14 days --8.4 days -- Chromium 6 months ---- Cobalt 6 months ----- Copper 6 months ----- pichloromeLhane (Methylene Chloride) 14 days --8.4 days - Field pH (S.D.) Immediate Fluoride (Mg/L) 28 days ----- Gross Alpha minus Rn & U MDC 6 months --8.4 days - Gross Alpha minus Rn & U Precision (±) 6 months -8.4 days -- Gross Alpha minus Rn & U 6 months --8.4 days -- Iron 6 months ------ Lab pH (S.U.) ------ Lead 6 months ----- Manganese 6 months ------ Mercury 28 days ------ Molybdenum 6 months ------ Naphthalene 14 days --8.4 d<tY§ - Nickel 6 months ----- Nitrate + Nitrite (as N) 28 days -2.3 days 2.2 days Selenium 6 months ----6.3 days Silver 6 months ------ Sulfate (mg/L) 28 days --- TDS (mgfL) 7 days --5.1 days -- Tetrahydrofuran 14 days ---- Thallium 6 months ----- Tin 6 months ---- Toluene 14 days -8.4 days -- Uranium 6 months 2.3 days 2.4 days - Vanadium 6 months ----- Xylenes (total) 14 days --8.4 day_s - Zinc 6 months ---- AlC Balance (± 5) BALANCE-W ------ Anions BALANCE-W -------- Bicarbonate as HC03 14 days ---- Calcium 6 months ---- Carbonate as C03 14 days ------ Cations BALANCE-W -------- Magnesium 6 months ---- Potassium 6 months ------ Sodium 6 months ----- G-2B: Holding Time Evaluation -Accelerated samples QAPHolding Constituent Time MW-319/6/2011 MW-35917/2011 2-Butanone (MEK) 14 dl!)'s ---- Acetone 14 days --- Ammonia (as N) 28 days ---- Arsenic 6 months --- Benzene 14 days -- Beryllium 6 months --- Cadmium 6 months --- Carbon Tetrachloride 14 dl!)'s ---- Chloride (mg/L) 28 days 21 days -- Chloroform 14 days --- Chloromethane 14 days ---- Chromium 6 months --- Cobalt 6 months --- Copper 6 months -- Dichloromethane (Methylene Chloride) 14 days --- Field pH (S.U.) Immediate Fluoride (Mg/L) 28 days --- Gross Alpha minus Rn & U MDC 6 months --- Gross Alpha minus Rn & U Precision (±) 6 months -- Gross Alpha minus Rn & U 6 months --- Iron 6 months --- Lab pH (S.U.) ----- Lead 6 months --- Manganese 6 months --2.3 days Mercury 28 days --- Molybdenum 6 months -- Naphthalene 14 days --- Nickel 6 months ---- Nitrate + Nitrite (as N) 28 days 3.1 days ,- Selenium 6 months ---- Silver 6 months --- Sulfate (mg/L) 28 days 10 days -- TDS (mglL) 7 days 5.9 days - Tetrahydrofuran 14 days -- Thallium 6 months --- Tin 6 months --- Toluene 14 days --- Uranium 6 months --2.3 days Vanadium 6 months ---- Xylenes (total) 14 days ----' Zinc 6 months ---- NC Balance (± 5) BALANCE-W ------ Anions BALANCE-W ------ Bicarbonate as HC03 14 days ---- Calcium 6 months --- Carbonate as C03 14 days --- Cations BALANCE-W ----- Magnesium 6 months -- Potassium 6 months ---- Sodium 6 months --- G-3A: Laboratory Receipt Temperature Check Sumple Dutch Wells in Butch Temperature 2.3 °C AWAL -I IOS IOS MW-I I, MW·14, MW-25 , MW-26, MW-30. MW-3 1, MW·35, MW-65 2.9 °C EL · CII 080529 MW-2. MW-3. MW-3A, MW·5, MW· 12, MW-1S, MW-27. MW-28, MW- 29. MW-36. MW·37. MW·70 MW-24, MW-32, MW-I I. MW-14, 4.2°C EL· Cl 1080269 MW-25, MW·26, MW·30, MW·31, MW-35, MW-65 EL · Cl 1090045 MW-14, MW·32, MW·65. MW-25, 2.3"C MW-26. MW-35 EL · CllQ909 14 MW-IS. MW-70 2.4°C G-3B: Laboratory Receipt Temperature Check -Accelerated Samples Sample Batch Wells in Batch Temperature AWAL -1107136 MW-li 4.4 °C AWAL-1109163 MW-II 4°C ~W-l1,~-25,~-26,~W-30,~-3.2°C EL -Cl 1070274 31,~-65 EL -C 11070824 MW-35 2.6 °C ~W-ll,~-25,~-26,~W-30,~-2.2°C EL -C1I090325 31, MW-35, MW-65 G-4A: Analytical Method Check Parameter QAPMethod Method Used by Lab Ammonia (as N) A4500-NH3 G A4500-NH3 G Nitrate + Nitrite (as N) E353.2 E353.2 Metals except Iron E200.8 E200.8 Iron E200.7 E200.7 Gross Alpha E900.1 E9OO.1 VOCs except Tetrahvdrofuran SW8260B SW8260B Tetrahydrofuran SW8260C SW8260C Chloride A4500-CIB A4500-CI B Fluoride A4500-FC A4500-FC Sulfate A4500-S04 E A4500-S04 E TDS A2540C A2540C Carbonate as C03, Bicarbonate as He03 A2320B A2320B Calcium. Magnesium. Potassium, Sodium E200.7 E200.7 Telrahydrofuran was analyzed by American West AnaJytical Laboratories. All other constituents were analyzed by Energy Laboratories. 040; Analytical Method OKck -Aca:ler:ued Samples " I , G-5A: Routine Reporting Limit Check MW~2 MW-3 8/8/2011 8/10/2011 QAP Reporting Constituent Limit RL Qualifier RL Qualifier 2-Butanone (MEK) 20 J,tg/L ------ Acetone 20 j.lg/L ------- Ammonia (as N) 0.05 mg!L -------- Arsenic 5 J,tg/L -------- Benzene 1.0 !lg/L -------- Beryllium 0.50 !lg/L ------ Cadmium 0.50 !lg/L ------- Carbon Tetrachloride 1.0J!gIL -------- Ch loride (mg/L) 1 mg/L ------- Chloroform 1.0 !lg/L -------- Chloromethane 1.0 !lg/L ------- Chromium 25 ug/L ------- Cobalt 10 !lg/L ------- Copper 10 J,tg/L -------- Dichloromelhane (Methylene Chloride) 1.0 !lg/L ------- Fluoride (Mg/L) O.L mg/L ----0.1 mg/L Gross Alpha minus Rn & U MDC 1.0 pCi/L o pCi/L - Iron 30 J,tg/L ------ Lead 1.0 !Lg/L -- ------ Manganese 10 !lgIL .----- Mercury 0.50 !lg/L ------ Molybdenum 10 !lg/L -------- N~hthalene 1.0 !lg/L ------- Nickel 20 !lg/L ------ Nitrate + Nitrite (as N) 0.1 mg/L ------ Selenium 5 !lg/L --5 ug/L Silver 10 !lg/L ------ Sulfate (mgIL) 1 mg/L ------ TDS (mg/L) 10 mg/L ----- Tetrahydrofuran 1.0 !lg/L ----- Thallium 0.50 !lg/L ------- Tin 100 J,tg/L ----- Toluene 1.0 !lg/L ------ Uranium 0.30 !lg/L ------- Vanadium 15 I-Lg/L ------ XyIenes (total) 1.0 ~lg/L -------- Zinc 10 J,tg/L ------- Bicarbonate as HC03 1 mg/L ------- Calcium 0.5 mg/L ------- Carbonate as C03 1 mg/L ----- Magnesium 0.5 mg/L -' .. --- Potassium 0.5 mg/L ------- Sodium 0.5 mg/L -------- G-5A: Routine Reporting Limit Check MW-3A MW-5 MW-11 8/11/2011 8/912011 8/3/2011 Constituent RL Qualifier RL Qualifier RL Qualifier 2-Butanone (MEK) ------20 ug/L U Acetone -----20 ug/L U Ammonia (as N) ------0.05 mg/L Arsenic ----5 ug/L U Benzene -----1 ugIL U Beryllium --------0.5 ug/L U Cadmium ------0.5 ug/L U Carbon Tetrachloride ------I ugIL U Chloride CmglL) -------1 mg/L Chloroform -------I ug/L U Chloromethane --------1 ugIL U Chromium --------25 ug/L U Cobalt -------10 ug/L U Copper --------10 ug/L U Oichloromethane (Methylene Chloride) --------I ug/L U Fluoride (Mg/L) --------0.1 mg/L Gross Alpha minus Rn & U MOC ---o pCiIL Iron --------30 ug/L Lead --------I ug/L U Manganese -------10 ug/L Mercury -------0.5 ug/L U Molybdenum --------10 ug/L U Naphthalene -------1 ug/L U Nickel -------20 ug/L U Nitrate + Nitrite (as N) --------0.1 mg/L U Selenium 5 ug/L ----5 ugIL U Silver -------10 ug/L U Sulfate (mg/L) 50 mg/L 0 ----20 mg/L 0 TOS (mg/L) 17 mg/L D ----10 mg/L Tetrahydrofuran -----1 [lg/L Thallium ------O.5ugIL U Tin -----100 ug/L U Toluene ------I ug/L U Uranium ---0.3 ug/L 0.3 ug/L Vanadium -------15 ug/L U Xylenes (total) -----1 ug/L U Zinc ------10 ug/L U Bicarbonate as HC03 -----1 mg/L Calcium ------0.6 mg/L D Carbonate as C03 -------I mg/L Magnesium --------0.5 mg/L Potassium -------0.5 mg/L Sodium -----0.9 mg/L D G-5A: Routine Reponing Limit Check MW-12 MW-14 MW-14 4/5/2011 8/3/2011 8/30/2011 Constituent RL Qualifier RL Qualifier RL Qualifier 2-Butanone (MEK) ----20 ug/L U ---- AceLone ---20 ug/L U --- Ammonia (as N) --------0.1 mg/L U Arsenic -------5 ug/L U Benzene --1 ug/L U --- Beryllium ------0.5 ug/L U Cadmium --------0.5 ug/L Carbon Tetrachloride ---1 ug/L U ---- Chloride (mglL) ----I mg/L ---- Chloroform --1 ug/L U ---- Chloromethane --1 ug/L U -- Chromium --------25 ug/L U Cobalt ------10 ug/L U Copper -------10 ug/L U Dichloromethane (Methylene Chloride) ----I ug/L U ---- Fluoride (MglL) ----0.1 mg/L --- Gross Alpha minus Rn & U MDC ----o pCi/L Iron --------30 ug/L U Lead ------1 ug/L U Manganese -------10 ug/L Mercury -----0.5 ug/L U Molybdenum --------10 ug/L U Naphthalene ----I ug/L U -- Nickel -----20 ug/L U Nit.rate + Nitrite (as N) ------0.1 mg/L U Selenium 5u~ ---5 ug/L U Silver -------10 ug/L U Sulfate (mgfL) ----50 mg/L D --;- TDS (mg/L) ----10 mg/L -- Tetrahydrofuran ---I /Lg/L --- Thallium ------0.5 ug/L U Tin -------100 ug/L U Toluene --1 ug/L U ---- Uranium -------0.3 ug/L Vanadium ------15u~ U XyJenes (total) ---I ug/L U --- Zinc -------10 ug/L Bicarbonate as HC03 ----I mg/L ---- Calcium ------0.5 mg/L Carbonate as C03 --1 mg/L U --- Magnesium ------0.5 mg/L Potassium -------0.5 mg/L Sodium ------0.5 mg/L G-5A: Routine Reporting Limit Check MW-18 MW-18 MW-19 8/10/2011 9/21/2011 7/20/2011 Constituent RL Qualifier RL Qualifier RL Qualifier 2-Butanone (MEK) --------- Acetone ----------- Ammonia (as N) ---------- Arsenic -------.-- Benzene ---------- Beryllium --------- Cadmium ---------- Carbon Tetrachloride ---------- Chloride (mg/L) ---------- Chloroform ---------- Chloromethane ----------- Chromium ------------ Cobalt ---------- Copper ------------ Oichloromethane (Methylene Chloride) ---------- Fluoride (MgIL) --------- Gross Alpha minus Rn & U MOC ----- Iron ----------- Lead ----------- Manganese --------- Mercury ---------- Molybdenum --------- Naphthalene ----------- Nickel ---------- Nitrate + Nitrite (as N) --------- Selenium --------- Silver --------- Sulfate (mglL) 50 mg/L D ------- TOS (mgIL) 10 mg/L -------- Tetrahydrofuran -------- Thallium 0.5 ug/L 0.5 ug/L -- Tin --------- Toluene ------------ Uranium --------- Vanadium ---------- Xylenes (total) --------- Zinc ---------- Bicarbonate as HC03 --------- Calcium --------- Carbonate as C03 ---------- Magnesium ----------- Potassium --------- Sodium --------- G-SA: Routine Reporting Limit Check MW-23 MW-24 MW-2S 8/4/2011 8/4/2011 8/3/2011 Constituent RL Qualifier RL Qualifier RL Qualifier 2-Butanone (MEK) ------20 ug/L U Acetone ------20 ug/L U Ammonia (as N) -------0.1 mg/L 0 Arsenic ----------- Benzene -------I ug/L U Beryllium ---- ----- Cadmium ---0.5 ug/L 0 --- Carbon Tetrachloride -------1 ug/L U Chloride (mg/L) ------1 mg/L 0 Chloroform ----- --I ug/L U Chloromethane --------J ug/L U Chromium --------- Cobalt --------- Copper ---------- Dichloromethane (Methylene Chloride) --------J ug/L U Fluoride (Mg/L) -------0.1 mg/L 0 Gross Alpha minus Rn & U MDC ----- Iron ----------- Lead ---------- Manganese ----------- Mercury ---------- Molybdenum ---------- Naphthalene -------J ug/L U Nickel ----------- Nitrate + Nitrite (as N) -------0.1 mg/L U Selenium ---------- Silver ------------ Sulfate (mg/L) -------50 mg/L D TDS (mg/L) ------10 mg/L 0 Tetrahydrofuran ------J /-tgIL Thallium ---0.5 ug/L U -- Tin -------- Toluene --------I ug/L U Uranium ---------- Vanadium ---------- Xylenes (total) ------1 ug/L U Zinc --------- Bicarbonate as HC03 --------I mg/L 0 Calcium --------- Carbonate as C03 -------1 mgIL U Magnesium ------------ Potassium --'. ------ Sodium -------- G-5A: Routine Reporting Limit Check MW-25 MW-26 MW-26 8/30/2011 8/3/2011 8/30/2011 Constituent RL Qualifier RL Qualifier RL Qualifier 2-Butanone (MEK) ----20 ug/L U -- Acetone ----20 ug/L U --- Ammonia (as N) ----0.05 mg/L 0 -- Arsenic 5 ug/L U --5 ug/L U Benzene ----I ug/L U -- Beryllium 0.5 ug/L U ---0.5 ug/L U Cadmium 0.5 ug/L 0 ---0.5 ug/L U Carbon Tetrachloride ----I ug/L U ---- Chloride (mg/L) ---I mg/L 0 --- Chloroform ---100 ug/L D ---- Chloromethane ---1 ug/L U --- Chromium 25 ug/L U --.-25 ug/L U Cobalt 10 ug/L U ---10 ug/L U Copper 10 ug/L U ---10 ug/L U Di.chloromelhane (Methylene Chloride) ---I ug/L 0 ---- Fluoride (MgIL) ---0.1 mg/L 0 ---- Gross Alpha minus Rn & U MDC o pCiIL --o pCi/L Iron 30 ug/L U ----3D ug/L 0 Lead 1 ug/L U ----I ug/L U Manganese 10 ug/L 0 ---10 ug/L 0 Mercury 0.5 ug/L U ----0.5 ug/L U Molybdenum 10 ugIL 0 ----10 ug/L U Naphthalene ---I ug/L U ---- Nickel 20 ug/L U ----20 ug/L U Nitrate + Nitrite (as N) ---0.1 mg/L 0 ---- Selenium 5 ug/L U ---5 ug/L U Silver 10 ug/L U ----10 ug/L U Sulfate (mg/L) --50 mg/L D ---- TDS (mg/L) ---10 mg/L 0 --- Tetrahydrofuran ----I Jlg/L --- Thallium 0.5 ug/L 0 ---0.5 ug/L U Tin 100 ug/L U ----100 ug/L U Toluene ---I ug/L U --- Uranium 0.3 ug/L 0 ----0.3 ug/L 0 Vanadium 15 ug/L U ----IS ug/L U Xylenes (total) ---I ug/L U --- Zinc 10 ugIL U ----10 ug/L U Bicarbonate as RC03 ---I mg/L 0 ---- Calcium 0.5 mg/L 0 ---0.5 mg/L 0 Carbonate as C03 ----I mg/L U -- Magnesium 0.5 mg/L 0 ----0.5 mg/L 0 Potassium 0.5 mg/L 0 --0.5 mg/L 0 Sodium 0.5 mgIL 0 ----0.5 mgIL 0 G-5A Routine Reporting Limit Check MW-27 MW-28 MW-29 8/8/2011 8/8/2011 8/9/2011 Constituent RL Qualifier RL Qualifier RL Qualifier 2-Butanone (MEK) ---------- Acetone ---------- Ammonia (as N) ---------- Arsenic --------- Benzene ---------- Beryllium ------- Cadmium ----------- Carbon Tetrachloride --------- Chloride (11!g/L) 1 mgt!. 0 1 mglL --- Chloroform ---------- Chloromethane -------- Chromium -------- Cobalt ---------- Copper --------- Dichloromethane (Melhylene Chloride) ---------- Fluoride (MglL) ---------- Gross AjQha minus Rn & U MDC o pC ilL -- Iron ------30 ugIL Lead ------------ Manganese ----------- Mercury ----------- Molybdenum ----------- Naphthalene ---------- Nickel ------------ Nitrate + Nitrite (as N) 0.2mglL D ------- Selenium ----------- Silver -------- Sulfate (mg/L) 10 mglL D -------- TDS (mglL) 10 mglL 0 ------ Tetrahydrofuran ---------- Thallium ----------- Tin --------- Toluene ----------- Uranium --------- Vanadium ----------- Xylenes (total) --------- Zinc ---------- Bicarbonate as RC03 ----------- Calcium -------- Carbonate as C03 --------- Magnesium -------- Potassium ----------- Sodium ----------- G-5A: Routine Reporling Limit Check MW-30 MW-31 MW-32 8/3/2011 8/2/2011 8/2/2011 Constituent RL Qualifier RL Qualifier RL Qualifier 2-Butanone (MEK) 20 ug/L U 20 ug/L U -- Acetone 20 ug/L U 20 ug/L U ---- Ammonia (as N) 0.05 mg/L U 0.05 mg/L U --- Arsenic 5 ug/L U 5 ug/L U --- Benzene 1 ug/L U 1 ug/L U ---- Beryllium 0.5 ug/L U 0.5 ug/L U ---- Cadmium 0.5 ug/L U 0.5 ug/L U --- Carbon Tetrachloride I ug/L U 1 ug/L U --- Chloride Cmg/L) 1 mg/L 1 mg/L --- Chloroform 1 ug/L U 1 ug/L U -- Chloromethane 1 uglI,. U 1 ug/L U --- Chromium 25 ug/L U 25 ug/L U -- Cobalt 10 ug/L U 10 ug/L U --- Copper 10 ug/L U 10 ug/L U --- Dichloromethane (Methylene Chloride) 1 ug/L U 1 ug/L U --- Fluoride (Mg/L) 0.1 mg/L 0.1 mg/L --- Gross Alpha minus Rn & U MDC o pCi/L o pCi/L --- Iron 30 ug/L 30 ug/L U ---- Lead 1 ug/L U 1 ug/L U ---- Manganese 10 ug/L 10 ug/L U --- Mercury 0.5 ug/L U 0.5 ug/L U --- Molybdenum 10 ug/L U 10 ug/L U ---- Naphthalene 1 ug/L U 1 ug/L U ---- Nickel 20 ugIL U 20 ugIL U --- Nitrate + Nitrite (as N) 1 mg/L D 1 mg/L D --- Selenium 5 ug/L 5 ug/L --- Silver 10 ug/L U 10 ugIL U ---- Sulfate CmgIL) 20 mg/L D 10 mg/L D --- TDS (mg/L) 10 mg/L 10 mg/L ---- Tetrahydrofuran 1 Ilg/L 1 Ilg/L --- Thallium 0.5 ug/L U 0.5 ugIL U --- Tin 100 ug/L U 100 ug/L U --- Toluene 1 ug/L U 1 ug/L U ---- Uranium 0.3 ug/L 0.3 ug/L ---- Vanadium 15 ug/L U 15 ug/L U ---- Xylenes (total) 1 ug/L U 1 ug/L U --- Zinc 10 ug/L U 10 ug/L U ---- Bicarbonate as RC03 1 mg/L 5 PERCENT --- Calcium 0.5 mg/L 0.5 mg/L -- Carbonate as C03 1 mg/L U 5 PERCENT U --- Magnesium 0.5 mg/L 0.5 mg/L ---- Potassium 0.5 mg/L 0.5 mg/L ---- Sodium 0.5 mgIL 0.5 mg/L ---- G-5A: Routine Reporting Limit Check MW-32 MW-35 MW-35 8/30/2011 8/2/2011 8/30/2011 Constituent RL Qualifier RL Qualifier RL Qualifier 2-Butanone (MEK) --------- Acetone -------- Ammonia (as N) ------- Arsenic 5ug/L 5 ug/L 5 ug/L U 5 ug/L U Benzene -------- Beryllium 0.5 ug/L 0.5 ug/L 0.5 ug/L U 0.5 ug/L U Cadmium 0.5 ug/L 0.5 ug/L 0.5 ug/L U 0.5 ug/L U Carbon Tetrachloride ---------- Chloride (mg/L) -------- Chloroform -------- Chloromethane --------- Chromium 25 ug/L 25 ug/L 25 ug/L U 25 ug/L U Cobalt 10 ug/L 10 ug/L 10 ug/L U 10 ug/L U Copper 10 ug/L 10 ug/L 10 ug/L U 10 ug/L U Oichloromethane (Methylene Chloride) ---------- Fluoride (Mg/L) ------------ Gross Alpha minus Rn & U MOC o pCi/L o pCi/L o pCi/L o pCi/L Iron 30 ugIL 30 ug/L 30 ug/L 30 ug/L Lead 1 ug/L 1 ug/L 1 ug/L U 1 ug/L U Manganese 10 ug/L 10 ug/L 10 ug/L 10 ug/L Mercury 0.5 ug/L 0.5 ug/L 0.5 ug/L U 0.5 ug/L U Molybdenum 10 ug/L 10 ug/L 10 ug/L U 10 ug/L U Naphthalene ---------- Nickel 20 ug/L 20 ug/L 20 ug/L U 20 ug/L U Nitrate + Nitrite (as N) ---------- Selenium 5 ug/L 5 ug/L 5 ug/L 5 ug/L Silver 10 ug/L 10 ug/L 10 ug/L U 10 ug/L U Sulfate (mg/L) ---------- TDS (mg/L) --------- Tetrahydrofuran ----------- Thallium 0.5 ug/L 0.5 ug/L 0.5 ug/L 0.5 ug/L Tin 100 ug/L lOO ug/L 100 ug/L U 100 ug/L U Toluene ---------- Uranium 0.3 ugIL 0.3 ug/L 0.3 ug/L 0.3 ug/L Vanadium 15 ug/L 15 ug/L 15 ug/L U 15 ugIL U Xylenes (total) -------- Zinc 10 ug/L 10 ug/L 10 ug/L U 10 ug/L U Bicarbonate as HC03 ----------- Calcium 0.5 mg/L 0.5 mg/L 0.5 mg/L 0.5 mg/L Carbonate as C03 ---------- Magnesium 0.5 mg/L 0.5 mg/L 0.5 mg/L 0.5 mg/L Potassium 0.5 mg/L 0.5 mg/L 0.5 mg/L 0.5 mg/L Sodium 0.5 mg/L 0.5 mg/L 0.5 mg/L 0.5 mg/L G-5A: Routine Rcporling Limit Check MW-65 MW-65 8/3/2011 8/30/2011 Constituent RL Qualifier RL Qualifier 2-Butanone (MEK) 20 ug/L U --- Acetone 20 ug/L U -- Ammonia (as N) 0.05 mgIL -- Arsenic ---5 ug/L U Benzene 1 ug/L U -- Beryllium ---0.5 ug/l U Cadmium ----0.5 ug/L U Carbon Tetrachloride 1 ug/L U --- Chloride (mg/L) 1 mg/L ---- Chloroform 50 ug/L D ---- Chloromethane 1 ug/L U ---- Chromium ----25 ug/L U Cobalt ----10 ug/L U Copper ----10 ug/L Dichloromethane (Methylene Chloride) 1 ug/L ---- Fluoride (Mg/L) 0.1 mg/L --- Gross Alpha minus Rn & U MDC -o pCi/L Iron ----30 ugIL Lead ----I ug/L U Manganese ---10 ug/L Mercury ---0.5 ug/L U Molybdenum ----10 ug/L U Naphthalene 1 ug/L U --- Nickel ---20 ug/L U Nitrate + Nitrite (as N) O.lm~ ---- Selenium ---5 ug/L U Silver ----10 ug/L U Sulfate (mg/L) 50 mg/L D -- IDS (mg/L) 10 mg/L --- Tetrahydrofuran l/Aog/L -- Thallium --0.5 ug/L U Tin ---100 ug/L U Toluene 1 ug/L U --- Uranium --0.3 ug/L Vanadium --15 ugIL U Xylenes (total) 1 ug/L U -,--- Zinc --10 ug/L Bicarbonate as HC03 1 mgIL --- Calcium ---0.5 mg/L Carbonate as C03 1 mg/L U --- Magnesium ---0.5 mg/L Potassium ---0.5 mgIL Sodium ---0.5 mg/L G-5A: Routine Reporling Limit Check MW-70 MW-70 8/10/2011 9/2112011 Constituent RL Qualifier RL Qualifier 2-Butanone (MEK) ------- Acetone ------- Ammonia (as N) ----- Arsenic ------ Benzene ------ BeryJlium ------ Cadmium -------- Carbon Tetrachloride ------- Chloride (mglL) ----- Chloroform ------ Chloromethane ------ Chromium ------ Cobalt ----- Copper ----- Dichloromethane (Methylene Chloride) ------ Fluoride (MglL) ------ Gross Alpha minus Rn & U MDC ---- Iron ------- Lead ------- Manganese ------- Mercury ------- Molybdenum ----- Naphthalene ------- Nickel ------ Nitrate + Nitrite (as N) ------- Selenium ----._-- Silver ------- Sulfate (mglL) 50 mglL D --- TDS (mglL) 10 mglL --- Tetrahydrofuran ------- Thallium ----0.5 uglL Tin ------- Toluene ------- Uranium -------- Vanadium -------- Xylenes (lotal) -------- Zinc ------ Bicarbonate as HC03 ------- Calcium ------- Carbonate as C03 ----- Magnesium ------- Potassium ---- --- Sodium ------ 5 G-B: Accelerated ReptJrting Limit Check MW·1l7/6/2011 MW-147/5/2011 QAP Reporting Constituent Limit RL Qualifier RL Qualifier 2-Butanone (MEK) 20j.lg/L ~ ~ -.. Acctone 20 j.lg/L -~ --- Benzene 1.01!g/L ~ -~ .. Carbon Tetrachloride 1.0 1!g!L ----.- Chloride (mg/L) 1 mg/L --~ .- Chloroform 1.0l!i!IL ---~ .- Chloromethane 1.01!g/L ----- Dicbloromethane (Methylene Chloride) 1.01!g/L -.--- Field pH (S.U.) 0.01 s.u. --.-~ - Manganese 10 I!g/L 10 ug/l ----. Naphthnlene 1.01!g/l --. --- Nitrnte + Nitrite (ns N) 0.1 mg/L ----- Selenium 51!g/L ---,--- Sulfate (mg/l) I me/L ----- TDS (m!1/L) 10 mg/L ----- TClraJlydrofurnll 1.01!g/L I ~g/L --- Toluene 1.0J,lglL -----.- Uranium 0,30 J,lJ!/L ------ Xvlenes (total) 1.0J,lg/L ----- G-SB: Accelerated Reporting Limit Check MW-25716/2011 MW-2671612011 MW-30 715/2011 Constituent RL Qualifier RL Qualifier RL Qualifier 2-Butanone (MEK) ---20 W!tr U -- Acclone ---20 uj!/L U -- Benzene ---I tij;)i U -- Carbon Tetrachloride ---I ug/l U --- Chloride Cmg/L) ---I mg/l 1 mg/l 0 Chloroform --100ug!L D --- Chioromelhllll6 --1 ugtL U --- Dichloromethane (Methvlene Chloride) --lul!lL --- Field pH (S.U.) ---- Manganese ---- -- Naphthalene - -1 tij;)i U -- Nitrate + Nitrite (as N) --0.1 mg/l 1 mg/l D Selenium ----Sul!lL 0 Sulfale (mglL) ------- TDS (mWL) --10 mgJl --- Tetrahydrofuran ------- Toluene --lul!lL U --- Uranium 0.3 ug/l 0 0.3 uii/L --- Xylenes (total) --1 Uii7i U --- G5B A -: eee erate dR eporl.lOll L· . Ch k lImt ec MW-317/S/2011 MW-3S 7/20/2011 MW·l1 9nt2011 Constituent RL Qualifier RL Qualifier RL Qualifier 2-Butanone CMEK) -------- Acetone ------- Benzene --.----- Carbon Tetrachloride ------ Chloride Cmg/L) 1 rilg!l 0 ---- Chlornfonn ------ Chloromethane ------ Dichloromethane (Methylene Chloride) -------- Field pH (S.U.) ------- Manganese ---lOuj!/L 0 lOuWl Naohthalene --------- Nitrate + Nitrite (ns N) 1 mgIL D ----- Selenium -------- Sulfate CmWl) lOmg/L D ---- TDS (mgIL) lOmg& 0 ---- Tetrahydrofuran -----Iltg/L Toluene -- ---- Uranium --0.3 uJVl 0 --. Xylenes (total) ------- G-SB· Accelerated Reporting Limit Check MW-149/8/2011 MW-2S 91712011 MW-2691712011 Constituent RL Qualifier RL Qualifier RL Qualifier 2-Butanone (MEK) ----20 ug/L U Acetone ----20 ug/L U Benzene ----I ul!/I. U Carbon Tetrachloride ----lug/L U Chloride (mglL) --,---I mg/L 0 Chl orofonll ----100 ug/L 0 Chloromethane ----I ul!/I. U Dichloromethane (Methylene Chloride) ----lug/L 0 Field pH (S.U.) -- Manganese ------- Naphthalene ----I ugIL U Nitrate + Nitrite (as N) ----0.2ml!/I. 0 Selenium ------ Sulfa te (mg/L) ------- TDS (mg/L) ----10 mglL 0 Tetrahydrofuran ------ Toluene ----1 ug/L U Uranium ---O.3ugIL 0 0.3 ugIL 0 Xylenes (total) ----1 ugfL U 0-5B: Acce erated ReJ>()11ingLimit Check MW-30 91712011 MW-3191612011 MW-3591612011 Constituent RL Qualifier RL Qualifier RL Qualifier 2-Butanone (MEK) -------. Acetone ------ Benzene --_. ---- Carbon Tetrachloride -----.- Chloride (mgIL) 1 mJ!!L 0 1 mj!/L 0 -- Chloroform --.---- Chloromethane ------ Dichloromethane (Methylene Chloride) ------ Field pH (S.U.) Manganese -----10 ugIL 0 Naphthalene -----_. Nitrate + Nitrite (as N) 1 mg/L D 1 mJ!!L 0 -- Selenium 5ug/L 0 ----- Sulfate (mg/L) --10mg/L 0 -- TDS CmwL) --lOmg/l 0 -- Tetrahydrofuran ------- Toluene --.---- Uranium ----0.3 ugIL 0 Xylenes (lotal) ------ G·6A: Trip Blank Evaluation All trip blanks for the 20 II Third Quarter sampl es were nondctcct. 0-6B: Trip Blank Evaluation All trip blanks ror the Accelerated 20 11 Third Quarter samples were non detect. Blank Sample Date Laboratory I 7/6I2011 Energy Laboratories 2 7/6nO I I American West Analytical Laboratories 3 9nnOll Energy Laboratories 4 9nJ2011 American West Analytical Laboratori es G-7 A: QNQC Evaluation for Routine Sample Duplicates Constituent MW·26 Ammonia (ns N) 0.27 Nitrate + Nitrite (as N) 0.6 Iron 1280 Manganese 984 Uranium 19 Chloroform 1000 Dichloromclhane (MethyLene Chloride) 10 Chloride (m'4lL) 60 Field pH (S.U.) 6.07 Fluoride (Mg/L) 0.27 Lab pH (S.U.) 7.72 Sulfate (mg/L) 1950 IDS (mgIL) 3190 Bicarbonate as HC03 397 Calcium 482 Carbonate as C03 0 Cations BALANCE-W 47.1 Magnesium 159 Potassium 10.7 Sodium 222 RadiologicDuplicale Tests Gross Alpha minus Rn & U MDC Gross A~ha minus Rn & U* Gross Alpha minus Rn & U Precision (±) Constituent Thallium Field pH (S.U.) TDS (mg/L) Sulfate (mg/L) ¥ Duplicate checks reported for gross alpha mInus RN and U are not %RPD. Calculated values are based on the formula in the approved QAP. 0.2 2.7 0.4 MW·18 3.39 5.95 3190 1910 MW·65 %RPD 0.27 0.00 0.6 0.00 1210 5.62 971 1.33 28.2 38.98 1100 9.52 12 18.18 57 5.13 6.07 0.00 0.26 3.77 7.74 0.26 1950 0.00 3180 0.31 389 2.04 493 -2.26 0 0.00 47.3 -0.42 159 0.00 10.6 0.94 214 3.67 0.2 0.00 2.5 0.354 0.4 MW·70 %RPD 3.47 2.33 5.95 0.00 3220 -0.94 1910 0.00 G-7B: QAJQC Evaluation for Accelerated Sample Duplicates MW-31 MW-65 Constituent 7/5/2011 7/5/2011 %RPD Nitrate + Nitrite (as N) 22 21 4.65 Chloride (mgIL) 148 145 2.05 Field QH (S.U.) 6.64 6.64 0.00 Sulfate (mg/L) 532 536 0.75 TDS(mg/L) 1280 1300 -1.55 MW-35 MW-65 Constituent 91712011 91712011 %RPD Manganese 270 275 1.83 Uranium 22.3 23 3.09 FieldlJH (S.U.) 6.47 6.47 0.00 G-8A: Radiologics Counting Error Gross Alpha Counting Gross Alpha minusRn&U Error S Within Well Sample Date minusRn &U Precision (±) 20% GWCL GWCL? MW-2 8/8/2011 0.5 0.1 Y 3.2 Y MW-11 8/312011 1.1 0.7 N 3.75 Y MW-14 8/30/2011 0.5 0.2 N 7.5 Y MW-25 8/30/2011 0.6 0.2 N 7.5 Y MW-26 8/30/2011 2.7 0.4 Y 4.69 Y MW-27 8/8/2011 0.8 0.2 N 2 Y MW-30 8/3/2011 1.1 0.7 N 3.75 Y MW-31 812/2011 0.5 0.6 N 7.5 Y MW-32 8/30/2011 1.9 0.3 Y 3.33 Y MW-35 8/30/2011 4.5 0.5 Y 3.75 NA MW-36 8/9/2011 0.3 0.1 N No GWCLs have been set MW-37 8/1112011 0.6 0.1 Y MW-65 8/30/2011 2.5 0.4 Y 4.69 Y N/A -the counting error is less than 20% of the activity as required by the GWDP. The value is above the GWCL and this check column is not applicable. G-8B= Radiologies Counting Error for Accelerated Samples Gross Alpha Counting Gross AJpha minos Rn & U Error !': Well Sample Date minus Rn & U Precision (±) 20% GWCL MW-26 7/6nOLl 2.8 0.4 Y 4.69 MW-26 9171201 I 2.5 0.4 Y 4.69 G-9A: Laboratory Matrix QC M t' S 'k 9l R C a rIX 'PI C () ecovery omparlSon MSD Lab Report Well Analyte MS %REC %REC REC Range RPD Cll080269 MW-65 Silver 64 71 70 -130 9.7 C11080269 MW-65 Manganese* NC NC 70 -130 NC C11080269 MW-32 Gross Alpha minus Rn & U 71 67 70 -130 4.4 C11080529 NA Naphthalene 82 103 70 -130 23 Cll090045 MW-32 Manganese* NC NC 70 -130 NC Cll090045 MW-32 Silver 74 57 70 -130 26 CI1090045 MW-65 Manganese* NC NC 70 -130 NC C11090045 NA Manganese* NC NC 70 -130 NC CI1090045 NA Manganese* NC NC 70 -130 NC NA = MS samples were not Demson samples. *= Recovery was not calculated as the analyte level in the sample was greater than 4 times the spike level. S 9l R urrogate () ccovery Lab Specified Surrogate REC QAP Required Lab Report WeWSample Analyte %REC Range Range Cll080529 MW-36 p-Bromofluorobenzene 126 80-120 None C11080529 MW-37 Q-Bromofluorobenzene 129 80-120 None CI1080529 Trip Blank p-Bromofluorobenzene 122 80-120 None Method Blank detections QAP Reported Required Lab Report WelVSample Analyte Concentration RL Cll080269 NA Bicarbonate as HC03 2.46 mglL 1 mglL G-9B: ACCelerated Laboratory Matrix QC RECRange RPD% 70 -130 0.2 Method Blank Detections Reported QAP Required Lab Report WclUSumplc Analylc ConcentratIon RL Cl1070274 -July Accelerated NA Selenium 0.4 ug/L 5 ug/L TabH Kriged Current Quarterly Groundwater Contour Map and Depth Data o MW-22 .5450 TW4-1 0 5554 PIEZ-1 '" 5594 TWN-4 ~5603 MW-34 -¢-5492 MW-36 3::t 5493 f ;1 II II II " 11 II ,I I' II II -:? -?- 11 32 ,I II II II I' II ,I II ,I II • MVY-21 N \1 II \\ ~ ~ \;; ~ ~ ~ MW-02 e5503 PROPERTY BOUNDARY MW-03 e5471 ~s.;80 MW-20 .5453 ~ MW-01 .5583 MW-18 e5587 TWN-11 TWN-1iJ/ttf:9 ~561 ~ ~16/ '\. '\.. ~Q7-~ ~5586 TWN-10 '\. ~584 lWN-9 " " PIEZ-1---r.:j. P ~5594 "- PI~-2 ~61 1 ./ ..... '\ \ / p .!-':=::==== _ 552 " ~ ~ L... ~ \ ~ --=.-=. "'~-=.-=.-~, ~~~~--~----~----~~ 4 --------~~--- SCALE IN FEET EXPLANATION perched monitoring well showing elevation in feet amsl temporary perched monitoring well showing elevation in feet amsl perched piezometer showing elevation in feet amsl temporary perched nitrate monitoring well showing elevation in feet amsl perched monitoring well installed August/September, 2010 showing elevation in feet amsl perched monitoring well installed April, 2011 showing elevation in feet amsl 3000 ~~ ~~ MW-22 " II HYDRO GEO CHEM, INC. e5450 ".# .# .~ .# .# // .# .# .# .# NOTE: MW-4, MW-26, TW4-4, TW4-19 and TW4-20 are pumping wells KRIGED 3rd QUARTER, 2011 WATER LEVELS WHITE MESA SITE APPROVED DATE REFERENCE FIGURE SJS H:/718000/nov11 /wI0911 .srf H-l Tab I Groundwater Time Concentration Plots ~ -.. .§. .. "tI .;: 0 :;: u ~ -.. .§. .. ~ 0 :J ;::;: Time concentration plots for MW-1 Chloride in MW-l 25 .'r------------------------------------------------------------------------------------------------------------------, 15 10 5 0.6 0.5 0.4 0,3 0.2 0.1 Sample Date Fluoride in MW-l Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values ::; .. .§. 111 .... :jg :::I III ::; ~ E :::I ·c I! ::J Time concentration plots for MW·1 Sulfate in MW-l 900 800 700 600 500 400 300 200 100 a ~ .... ,.<:< Sample Date Uranium in MW-l 12 ~--------------------------------------------------------~ 10 t-.-------------------------------------------------------~ 8 6 4 2 i' C! Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values :::; "Oa !. QI 'U .1: ..5! .c u :::; "Oa !. QI ~ 0 :J Li: Time concentration plots for MW-2 Chloride in MW-2 25 20 15 10 5 o +---~-----r----~----~--~----~----~--~~--~ 0.5 0.45 0.4 0.35 0.3 0.25 w\ -I 0.2 0.15 0.1 0.05 0 ,y ..... ", Sample Date Fluoride in MW-2 J / A I ~ o Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 ~ AA. J ... V • Detected Values • Non-Detected Values 2500 2000 :::;-1500 .. .§. ! ::I III 1000 Time concentration plots for MW-2 Sulfate in MW-2 500 t-------------------------------------------------------------I o 20 18 16 14 :::;-12 l ~ E 10 ::I 'c ~ 8 ;:) 6 4 2 A If \ ~ a "OJ r:F Sample Date Uranium in MW-2 l "-~ \ ~ ~ \ / '/ V Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 ~ "-k ~ \J • Detected Values • Non-Detected Values 80 70 60 :::i' 50 "Oll .§. cu 40 !! 0 :c u 30 20 10 0 ~'b~ ,.-; 1 0.8 :::i' "Oll .§. cu 0.6 .., '1: 0 ::I ;;: 0.4 0.2 'b'" <f ~'" Time concentration plots for MW-3 ""~ ~'> Chloride in MW-3 Sample Date Fluoride in MW-3 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values 4500 4000 3500 3000 ::i Cia 2500 .§. !'J £ 2000 ::. III 1500 1000 500 0 'Jf' \",<:, 80 70 60 ::i 50 ~ E 40 :I ·2 1! ::I 30 20 10 0 (f'lOJ 0 Time concentration plots for MW-3 Sulfate in MW-3 Sample Date Uranium in MW-3 !o (f'8 o Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non·Detected Values "F?$ WE Intc~A :=oo..~Ja! ::.-Iia oS GI ~ 0 :E u ::.-Iia oS GI :!! ::; :::I u:: ao 70 60 50 40 30 20 10 0 j' ,.;$ 1.8 1.6 1.4 1.2 1 o.a 0.6 0.4 0.2 0 ~.., .,,>(' .. .I s§:> ,<Q Time concentration plots for MW-3A Chloride in MW-3A / ~ ~~"'( Sample Date Fluoride in MW-3A / ~ .,,><:' Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values ::J Iia .§. .. .. ~ " III ::J -~ E " 'c ~ :::) Time concentration plots for MW-3A Sulfate in MW-3A 3900 ,----------------------------------. 3800 3700 3600 3500 3400 3300 3200 5:J'" ,>",,,, 30 25 20 15 10 5 o d> I' .. 01 ~ Sample Date Uranium in MW-3A " /"-....... ""\ " .... "Y' Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Va lues • Non-Detected Values 80 70 60 :::;-50 ~ .§. QI 40 ~ 0 :c u 30 20 10 0 "r@ ~:. c:<C> 0 1.8 1.6 1.4 1.2 :::;- 'bD 1 .§. QI "a .~ 0.8 '" u: r 0.6 It 0.4 0.2 o ~~e,,---= Ini:c~A ~ !:iJ;; Time concentration plots for MW-5 ii-~:~ Chloride in MW-S !Ill;) <l-q !t ,<V1 Sample Date Fluoride in MW-S A / --h Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 ,fit 1'~ • Detected Values • Non-Detected Values ::;- Iia .E- OJ .... ~ ::J VI ::;-~ E ::J ·c ~ :l Time concentration plots for MW-S Sulfate in MW-S 1600 1400 1200 1000 800 600 400 200 0 ",'Of!l &'0'" ~~ IitcfJ !'P' ~'1> 0 ~'1> '" ,,,If Sample Date Uranium in MW-S 4 3.5 2.5 2 1.5 J -r -1 0.5 !J ~ f , ~ ., b ~ , \.... , ~ 0 .. ~ I:J I I Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 \rF \J V • Detected Values • Non-Detected Values ::;- Iii! !. III :E ~ :E \.I ::;- Iii! !. III "1:1 .~ :::I ;;;: Time concentration plots for MW-11 Chloride in MW-ll 45 40 35 30 25 20 15 10 o +------r----~~----~----~----~------~----~----~----____ 0,8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 i Sample Date Fluoride in MW-ll i i i i , Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 U ~I ~. ., i , • Detected Values • Non-Detected Values 1400 1200 1000 :;; iia 800 .§. ., .. ~ 600 '" III 400 200 0 '1>'" {p <f ,<q1 Q'" 3.5 3 2.5 :;; ] 2 E '" 'c 1.5 f! :) 0.5 ~ ~ Time concentration plots for MW-11 n I Sulfate in MW-ll t:<C' ~ Sample Date Uranium in MW-ll IJ \ l~ 1 "-, ~ lJ J, Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 ---'" .. ,~ W • Detected Va lues • Non-Detected Values 160 140 120 :::.-100 10 .§. .. 80 "lJ .;: 0 :E u 60 40 20 a ;:l:.'bo, ~., 0.4 0.35 0.3 :::.-0.25 10 .§. .. 0.2 :E a :::I il: 0.15 0.1 0.05 "cff' \" Time concentration plots for MW-12 Chloride in MW-12 Sample Date Fluoride in MW-12 ~ Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 J' .A J ~ , • Detected Values • Non·Detected Values ~ .. .§. .. .. ~ ::J III ~ ..... .! E ::J 'c E ::I Time concentration plots for MW-12 Sulfate in MW-12 3000 2500 2000 1500 1000 500 a +-----~----~------~----~----_r----~------r_----~-----I ",'b'" ~'1> 20 15 10 Sample Date Uranium in MW-12 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values 30 25 20 ~ "iia .§. OJ "1:1 .;: 0 :E u 10 5 0.2 ~ 0.15 "iia .§. OJ "1:1 .~ :I 0.1 ;:;: 0.05 Time concentration plots for MW-14 Chloride in MW-14 Sample Date Fluoride in MW-14 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values ::; -.. .§. III .... ~ :::I III ::; ~ E :::I ';: ~ ::J Time concentration plots for MW-14 Sulfate in MW-14 2500 ~----------------------------------------------------------~ 2000 1500 1000 500 +-------------------------------------------------------------1 120 100 80 60 40 20 o o Sample Date Uranium in MW-14 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values ::; 'b:a .§. .. -a .;: 0 :E u ::; .... ... .§. .. :!! Q " il: Time concentration plots for MW-1S Chloride in MW-1S 60 50 40 30 20 10 o ~-----r----~------T------r----~------~----~----~----~ 0.4 0.35 0.3 ,..- 0.25 0.2 0.15 0.1 0.05 o Sample Date Fluoride in MW-1S ~ ~ ..... \ -.., Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 \. .-.-.. • Detected Values • Non-Detected Values ::r 'ii) .§. .. .. J! ~ 11\ ::r } E ,. ';: ~ ::I Time concentration plots for MW·15 Sulfate in MW-1S 3000 2500 2000 1500 1000 500 Sample Date Uranium in MW-1S 70 60 50 40 30 20 10 o +-----~----r-----r-----~--_.r_--~----_.----~----~ ,p,*,OJ Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values 60 50 40 ::; Iia .§. .. 30 "g .;: 0 ::c u 20 0.45 0.4 0.35 0.3 ::; Iia 0.25 .§. .. :5! Q 0.2 :::0 il: 0.15 0.1 0.05 o / Time concentration plots for MW-17 ~ Chloride in MW-17 Sample Date Fluoride in MW-17 A / \ ~ Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 .~ -- • Detected Values • Non-Detected Values ~rf/i -mE Inti:=lA ~ ~ ~ oS .. .. of! "3 VI ~ ...... .. ..:: E ::I 'c f! ::J 3500 3000 2500 2000 1500 1000 500 50 45 40 35 30 25 20 15 10 5 0 5'1'" ~~ !:o," ,.q Time concentration plots for MW-17 ~~ ,.q Sulfate in MW-17 Sample Date Uranium in MW-17 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values 80 70 60 ::; 50 "'iia .§. .. 40 ~ ] is 30 20 10 0 1:"'''' ~'Ii 0.45 0.4 0.35 0.3 ::; "'iia 0.25 .§. .. :g 0.2 0 :::J ;:;: 0.15 0.1 0.05 o Time concentration plots for MW-18 ~PJ" ~'Ii 1:"''1 ~'Ii ~ " Chloride in MW-18 Sample Date Fluoride in MW-18 -'" ~ \ "-\ \. ..... ~-- Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 ..... .... .A v • Detected Values • Non-Detected Values Time concentration plots for MW-18 Sulfate in MW-18 2500 2000 ::;-1500 liD .s III .. ~ :I 1000 III 500 o +-----~----~----~----~----~----~----~----~--__J 60 50 40 ::;- } E 30 :I 'c C! ;:) 20 o Sample Date Uranium in MW-18 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Va lues • Non-Detected Values 100 90 I.- f 80 70 :::;-60 'iia .§. l.. fl III 50 :2 0 V :c u 40 30 20 10 o 1.6 1.4 1.2 :::;- 'iii .§. III "1:1 0.8 'g ::I u: 0.6 0.4 0.2 0 r:I\<fJ ~~ .,,,,1' Time concentration plots for MW·19 Chloride in MW-19 A ~ \ / Y /' "' ~ V Sample Date Fluoride in MW-19 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 A A v~~ • Detected Values • Non-Detected Values 3000 2500 2000 ::; Iii; .§. 1500 CIJ ... ~ :::I III 1000 500 ::; } E 15 ::I '2 ~ ;:) 10 5 Time concentration plots for MW-19 Sulfate in MW-19 Sample Date Uranium in MW-19 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non·Detected Values 80 70 60 :::r 50 "OD oS CII 40 "C .~ :c u 30 20 10 0 rtJ~ <:) 0.4 0.35 0.3 :::r 0.25 "OD oS CII 0.2 "C ·c 0 ::I ;:;: 0.15 0.1 0.05 o - ro- Time concentration plots for MW·20 ~ (fOJ 0 ~ Chloride in MW-20 Sample Date Fluoride in MW-20 ... /' ./ ./ Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values 4500 4000 3500 3000 ~ 'iii! 2500 .§. .2! ~ 2000 ::I II) 1500 1000 500 o 40 35 30 ~ 25 ] E 20 ::I C I.! :l 15 10 5 0 <J01' QI{; :;;;;;&. to flO) 0 Time concentration prots for MW·20 Sulfate in MW-20 ....... ~ ~ -.-....... <",l' Sample Date Uranium in MW-20 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 " "V • Detected Values • Non-Detected Values ::; ~ .§. CII :!:! !i ::c u Time concentration plots for MW-22 Chloride in MW-22 80 70 60 50 ..-- 40 30 20 10 0 <.:<t fa rJr1J <;J'I} 0 Sample Date Fluoride in MW-22 3.3 .------------------------------~ 3.2 +---------------I-~---_I____',...._--------l 2.8 2.7 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values ::;-o:a oS GO .... .l! ~ 11\ ::;-...... ~ E :::I ·c !! ::J Time concentration plots for MW-22 Sulfate in MW-22 7000 6000 5000 4000 3000 2000 1000 0 ,l' ra c:FCIJ <;) Sample Date Uranium in MW-22 60 50 40 30 20 10 o +-----~----~----~----r---~~--~----~----~-----I Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values :::i' ... .§. CII :2 !i :E u :::i' ........ .. .§. CII :2 !i ::I lI: :§rSi 01:: Ini:i:~A ~.., ~ 12 10 8 6 4 2 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 j:l'" ... .;,<:' '<~ Time concentration plots for MW·23 Chloride in MW-23 Sample Date Fluoride in MW-23 / ~ ,.;,<:' Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values ::;- 'iW E-cu .. ~ ::I III ::;--~ E ::I 'c ~ ::J Time concentration plots for MW·23 Sulfate in MW-23 3000 2500 2000 1500 1000 500 a ~----~----~----~----~----~----r-----~----r---~ 35 30 25 20 15 10 5 0 ~ s§> ".,<f ~~ !' <:)'" Sample Date Uranium in MW-23 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values 60 50 :'v-A 40 ~ til; oS III ~ 30 0 :c u 20 10 o 0.4 0.35 0.3 ~ 0.25 -OIl oS III 0.2 'tJ .~ :I ii: 0.15 0.1 0.05 0 \:>" '<~ ~ \~ Time concentration plots for MW-24 Chloride in MW-24 -~ ~ ---,./'" .. Sample Date Fluoride in MW-24 ?' ~ ~~ 0 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 ~ • Detected Values • Non-Detected Values 3500 3000 2500 :::; 'Oa 2000 .§. GI .... :Ill 1500 ::I III 1000 500 12 10 I 8 :::; ] E 6 ::I '2 e! ::::I 4 2 0 Time concentration plots for MW-24 Sulfate in MW-24 Sample Date Uranium in MW-24 A \ \ , ~ ... -v,_ ~ .J' --.r" Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 ~ L.--~ • Detected Values • Non-Detected Values ::i' ...... .. .§. III "CI '1: 0 \5 ::i' ~ .§. III "CI .~ ::I ii: Time concentration plots for MW-25 Chloride in MW-2S 40 35 ~ --A ~ ..... ~ 30 25 20 15 10 5 o 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 ~ ~ # ~~ ~ ~ V Sample Date Fluoride in MW-2S ,!' ~o Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 ~ • Detected Values • Non-Detected Values Time concentration plots for MW·25 Sulfate in MW-2S 1900 1850 1800 ::;- iio 1750 .§. GI .. J!! 1700 3 III 1650 1600 1550 !' \" '<~ ft ~o Sample Date Uranium in MW-2S 8 -r-------------------------------------------------~ 7 6 ::;-5 } E 4 " .~ ~ 3 -r-----------------------------------------------------------I 2 o Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values 90 80 70 60 ::. 'Ol; 50 .5- GI 'a .1: 40 0 :c u 30 20 10 o 0.4 0.35 0.3 ~ 0.25 'Ol; .5- GI 0.2 'a .~ " i:i: 0.15 0.1 0.05 0 s;:," </,"1 ~ ~~.f, Time concentration plots for MW·26 Chloride in MW-26 • A A/\ ~ ~-rvv \/\/-· ... Sample Date Fluoride in MW-26 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • If II III ~J I • Detected Values • Non-Detected Values ::i .... .. .§. QI .. ~ :s 11\ ::i .... ~ E :s ·c !! :J Time concentration plots for MWw26 Sulfate in MW-26 2500 ~----------------------------------------------------------~ 2000 .r-------------------------~~~~----~~-\.--------=-~-----I 1500 1000 500 o 140 120 100 80 60 40 20 0 Sl<' .... ~<1' s:Y> '<~ Sample Date Uranium in MW-26 ?' ~o Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values 50 45 40 35 ::; 30 "iia .§. CII 25 :g 0 ::E 20 u 15 10 5 o 0.9 0.8 0.7 0.6 ::; "iia 0.5 .§. CII :2 (; 0.4 ::I ii: 0.3 0.2 0.1 o Time concentration plots for MW-27 Chloride in MW-27 -~ ,.-I ,.-.... / .,....... V I""'",,~ Sample Date Fluoride in MW-27 .. V\~ \/'\. --~ • Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 '" -- .- 'tt- -~ • Detected Values • Non·Detected Values ~m= IntiS::rA ~~ ~ "'iilI § III ... ::Ill ::s II> ~ ~ E ::s 'c I! ::> 600 500 400 300 200 100 34 33 32 31 Time concentration plots for MW-27 Sulfate in MW-27 Sample Date Uranium in MW-27 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values 100 80 :J' -"" .§. III 60 "CJ .~ is 40 20 0.8 0.7 0.6 :J' 0.5 'iiii .§. III 0.4 "CJ ·c 0 ::I u:: 0.3 0.2 0.1 0 s;l" .... ~~ do ,.,01 Time concentration plots for MW-28 Chloride in MW-28 Sample Date Fluoride in MW-28 /' ~ ~","" Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non·Detected Values Time concentration plots for MW-28 Sulfate in MW-28 2550 2500 2450 ~ 2400 ...... .. .§. 2350 cu ... ~ ::I 11\ 2300 2250 2200 2150 $)" !' ~o.l' ~ ~ </,q .,.q '>~<:' ,>",<:' Sample Date Uranium in MW-28 4.5 4 t-----~~--------------------------------------------------I 3.5 3 t-------------~~,,---------------------------------------I l 2.5 E ::I 'c 2 ~ ::J 1.5 0.5 o +------r----~------~----~----~------r_----~----_r----~ Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values ::; 'Dli .s cu ~ ..5! .c u ::; 'Dli .s cu ~ 0 ::I li: Time concentration plots for MW·29 Chloride in MW-29 45 40 35 30 A. -V~ ~ ~ ~/ 25 20 15 10 5 o Sample Date Fluoride in MW-29 1.2 .,----------------------------~ 0.8 0.6 0.4 0.2 o +-----~----~----r_--~~--~----~----~----~----~ Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Va lues • Non·Detected Values 3000 2950 2900 2850 ::i' liD 2800 .§. GI .. J! 2750 "3 III 2700 2650 2600 2550 " "",.? 14 12 10 ::i' ...... 8 ~ E ::0 ·c 6 I! ::l 4 2 0 j:l" ",>"" ~ "O!f ~ ,,05' Time concentration plots for MW-29 Sulfate in MW-29 ~ ~ 0 ~~ ... >.~ ~ 0 Sample Date Uranium in MW-29 ~ ~'b->:' Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values 160 140 120 :3' 100 Oil .§. III 80 -a .~ :c u 60 40 20 0 ~ ...... §' 0.45 0.4 0.35 0.3 :3' Oil 0.25 .§. III -a '': 0.2 Q ,. il: 0.15 0.1 0.05 0 b " .. <I' ~ ~~ ~ ~~"" Time concentration plots for MW-30 Chloride in MW-30 !l' ~ Sample Date Fluoride in MW-30 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values 1200 1000 800 :::;- iia oS 600 GI .... ~ ::I <II 400 200 9 8 7 6 :::;-..... ~ 5 E ::I '2 4 ~ :::l 3 2 1 0 5:1" .... ~<I' '<~ Time concentration plots for MW-30 Sulfate in MW-30 I' o I' 0 Sample Date Uranium in MW-30 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values ::.-... .§. .. ~ 0 :E u ::.-... .§. GO :5! 0 ::I ii: Time concentration plots for MW·31 Chloride in MW-31 160 140 120 100 80 60 40 20 0 \l" ~ ft ';~<' ~:f ~ Sample Date Fluoride in MW-31 1.2 r------------------------------~ 0.8 0.6 0.4 0.2 o Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values 600 500 A-V"V 400 :::r """-III) .s 300 011 ... "' ~ :::J III 200 100 o 9 8 ,.../ 7 V 6 :::r """-..! 5 E :::J 'c 4 ~ :J 3 2 o Time concentration plots for MW-31 Sulfate in MW-3l -~ ---"'. .Aoo....J"\ , .... -~ Sample Date Uranium in MW-3l ~ .... --"'-/ .,... Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 ~ -'V" ---~ ~ / \/ .. • Detected Values • Non-Detected Values 40 35 30 :;-25 Cia oS GI 20 ~ 0 :E u 15 10 5 0 fl'1, c,e<:/ 0.35 0.3 0.25 :;- Cia 0.2 oS GI :!i! Is 0.15 :) il: 0.1 0.05 0 1:)'1, c,e<i flO, ,.~" ~o, ,.~" Time concentration plots for MW-32 Chloride in MW-32 9[,~ fl<' ,.oS ... ~ Sample Date Fluoride in MW-32 .I' " ;t' 'j Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Va lues • Non-Detected Values 3000 2500 2000 .--- :::;-'iii; .§. 1500 cu .. .. :I: ::J III 1000 500 o 4.5 4 3.5 3 :::;- } 2.5 E ::J '2 2 ~ A J~ ~ ::::I 1.5 1 0.5 o Time concentration plots for MW-32 Sulfate in MW-32 .... ,,~ ..... ~--~ Sample Date Uranium in MW-32 \ A \ / \-\ / ~ --. ~ Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • ./ • Detected Values • Non-Detected Values :i -l1li .§. .. "0 ';: .2 .Ii: u :i "iia .§. .. ~ 0 ,. it Time concentration plots for MW-34 Chloride in MW-34 75 ~------------------------------------------------------------~ 74 73 72 71 70 69 68 0.552 0.55 0.548 0.546 0.544 0.542 0.54 0.538 Sample Date Fluoride in MW-34 7 / / / / Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values 2300 2280 2260 2240 :::r 2220 .... tID .§. 2200 GI ... ra :t: :::0 2180 II> 2160 2140 2120 2100 28 27.5 27 26.5 :::r .... ~ 26 E :::0 'c 25.5 ~ :I 25 24.5 24 23.5 ~o$' ~o ~ "- ~ <J Q'li Time concentration plots for MW-34 Sulfate in MW-34 "-"-"-" " ~ ~ v--- Sample Date Uranium in MW-34 ~ <J Q'li Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 ~ • Detected Values • Non-Detected Values 80 70 60 :; 50 bo .§. cu 40 .., .;: 0 :c u 30 20 10 o 0.45 0.4 0.35 0.3 :; bo 0.25 .§. cu ~ 0.2 0 ::J u:: 0.15 0.1 0.05 o Time concentration plots for MW-35 Chloride in MW-35 ~ '" ~ ~ Sample Date Fluoride in MW-35 110.. ~ ------............... .,.. Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 ..... • Detected Va lues • Non-Detected Values :J' 1500 '00 .§. GI .. ~ ::I 1000 OIl 30 25 20 :J' } E 15 ::I 'c I! :I 10 5 Time concentration plots for MW-35 Sulfate in MW-35 Sample Date Uranium in MW-35 Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values Time concentration plots for MW-36 Chloride in MW-36 60 • 50 40 :;; Cia E- O) 30 "0 .~ :;:: u 20 10 0 9<;;>-or-.:s Sample Date Fluoride in MW-36 0.35 r-------------------------------. • 0.3 0.25 +-------------------------------1 i 0.2 1-----------------------------1 .. .., 'g 0.15 Ii: 0.1 0.05 +-----------------------------1 a ~---------------------------~ Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values ~~~ InLC~A ~ ~ Time concentration plots for MW-36 Sulfate in MW-36 3000 • 2500 . 2000 ::;- 'iii .§; 1500 S ~ ,. Ii) 1000 500 0 Sample Date Uranium in MW-36 30 r-----------------------------------------------------------------------------------------------------------------~ 25 t-----------------------------------------------------------------------------------------------------------------~ • 20 +------------------------------------------------------------------------------------------------------------------1 l E 15 ,. 'c ~ ;:) 10 +------------------------------------------------------------------------------------------------------------------1 o ~----------------------------------------------------------------------------------------------------------------~ Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values ~ws Ini:c~A ~-!5'...a ~ 'iia .5. III -.:I '5 :E u ~ bi .5. G/ -.:I ·c 0 :I ii: 60 50 40 30 20 10 0 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Time concentration plots for MW-37 Chloride in MW-37 • Sample Date Fluoride in MW-37 • r(, ...... ~>$ Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non-Detected Values 3000 2500 2000 ~ -011 .§. 1500 GO ... ~ :> III 1000 500 0 20 18 16 14 ~ 12 } E 10 :> ·2 I! 8 :I 6 4 2 0 Time concentration plots for MW-37 Sulfate in MW-37 • go ...... of Sample Date Uranium in MW-37 .. go ...... .,..:s Sample Date White Mesa Uranium Mill Groundwater Monitoring Report 3rd Quarter 2011 • Detected Values • Non·Detected Values Tab J CSV Transmittal Letter Kathy Weinel From: Sent: To: Cc: Subject: Attachments: Dear Mr. lundberg, Kathy Weinel Tuesday, November 22, 2011 11 :57 AM 'rlundberg@utah.gov' 'Phillip Goble'; David Frydenlund; Jo Ann Tischler; Harold Roberts; Jaime Massey Transmittal of CSV Files White Mesa Mill 2011 03 Groundwater Monitoring C11 090045_R1.csv; C11 090914 (1 ).CSV; C11 080269_R2.csv; C11 080529.CSV; C11070824.CSV; C11 070274.CSV; C11 090325.CSV; 11081 08-EDD CSV.csv; 1108246- EDD.csv; 11 07136-EDD.csv; 11 09163-EDD.csv Attached to this e-mail is an electronic copy of laboratory results for groundwater monitoring conducted at the White Mesa Mill during the third quarter of 2011, in Comma Separated Value (CSV) format. Please contact me at 303-389-4134 if you have any questions on this transmittal. Yours Truly Kathy Weinel Denison Mines (USA) Corp. Quality Assurance Manager 1