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Home My WebLink AboutDRC-2012-001190 - 0901a068802b2d21DRC-2012-00119G Dentson Mines (USA) Corp 1050 17th street, Suite 950 M/: Denver CO 80265 DENISON / MINES Tel 303 628 7798 Fax 303 389-4125 www denisonmines com Sent VIA Federal Express February 27 2012 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 Re Transmittal of 4th Quarter 2011 Routine Chloroform Monitoring Report UDEQ Docket No UGQ 20 01 White Mesa Uranium Mill DearMr Lundberg Enclosed are two copies of the White Mesa Uranium Mill Chloroform Monitoring Report for the 4th Quarter of 2011 as required by the Notice of Violation and Groundwater Corrective Action Order UDEQ Docket No UGQ 20 01 as well as two CDs each containing a word searchable electronic copy of the report If you should have any questions regardmg this report please contact me Yours very truly DENISON MINES (USA) CORP Jo Ann Tischler Director Comphance and Permitting CC Ron F Hochstein David C Frydenlund Harold R Roberts David E Turk Kathy Wemei Central Files OENISOJ)~~ MINES Sent VIA Federal Express February 27, 2012 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: 303 628-7798 Fax: 303389-4125 www.denisonmines.com Re: Transmittal of 4th Quarter 2011 Routine Chloroform Monitoring Report UDEQ Docket No. UGQ-20-01-White Mesa Uranium Mill Dear Mr. Lundberg: Enclosed are two copies of the White Mesa Uranium Mill Chloroform Monitoring Report for the 4th Quarter of 2011 as required by the Notice of Violation and Groundwater Corrective Action Order, UDEQ Docket No. UGQ-20-01 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. ~trul~ DENISON MINES (USA) CORP. JoAnn Tischler Director, Compliance and Permitting CC: Ron F. Hochstein David C. Frydenlund Harold R. Roberts David E. Turk Kathy Weinel Central Files White Mesa Uranium Mill Chloroform Monitoring Report State of Utah Notice of Violation and Groundwater Corrective Action Order UDEQ Docket No. UGQ-20-01 4th Quarter (October through December) 2011 Prepared by: Denison Mines (USA) Corp. 1050 1 i h Street, Suite 950 Denver CO 80265 February 27, 2012 TABLE OF CONTENTS 1.0 INTRODUCTION ................................................................................................. 1 2.0 CHLOROFORM MONITORING ...................................................................... 1 2.1 Samples and Measurements Taken During the Quarter ..................................... 1 2.1.1 Chloroform Monitoring .............................................................................. 1 2.1.2 Parameters Analyzed .................................................................................. 2 2.1.3 Groundwater Head Monitoring ................................................................... 2 2.2 Sampling Methodology and Equipment and Decontamination Procedures ....... 3 2.2.1 Well Purging and Depth to Groundwater ................................................... 3 2.2.2 Sample Collection ....................................................................................... 4 2.3 Field Data ............................................................................................................ 5 2.4 Depth to Groundwater Data and Water Table Contour Map .............................. 5 2.5 Laboratory Results .............................................................................................. 5 2.5.1 Copy of Laboratory Results ........................................................................ 5 2.5.2 Regulatory Framework ............................................................................... 5 3.0 QUALITY ASSURANCE AND DATA VALIDATION ................................... 5 3.1 Field QC Samples ............................................................................................... 6 3.2 Adherence to Mill Sampling SOPs ..................................................................... 6 3.3 Analyte Completeness Review ........................................................................... 7 3.4 Data Validation ................................................................................................... 7 3.4.1 Field Data QAlQC Evaluation .................................................................... 7 3.4.2 Holding Time Evaluation ............................................................................ 8 3.4.3 Receipt Temperature Evaluation ................................................................. 8 3.4.4 Analytical Method Checklist ...................................................................... 9 3.4.5 Reporting Limit Evaluation ........................................................................ 9 3.4.6 Trip Blank Evaluation ................................................................................. 9 3.4.7 QAlQC Evaluation for Sample Duplicates ................................................. 9 3.4.8 Rinsate Sample Check .............................................................................. 10 3.4.9 Other Laboratory QAlQC ......................................................................... 10 4.0 INTERPRETATION OF DATA ....................................................................... 11 4.1 Interpretation of Groundwater Levels, Gradients and Flow Directions ........... 11 4.1.1 Current Site Groundwater Contour Map ................................................... 11 ~-----4;1.r:-2 Comparison of Current Groundwater Contour Maps to Groundwater Contour Maps for Previous Quarter. ........................................................ 13 4.1.3 Hydrographs .............................................................................................. 13 4.1.4 Depth to Groundwater Measured and Groundwater Elevation ................. 13 4.1.5 Evaluation of the Effectiveness of Hydraulic Capture ............................ 14 4.2 Review of Analytical Results ............................................................................ 15 4.2.1 Current Chloroform Isoconcentration Map .............................................. 15 4.2.2 Chloroform Concentration Trend Data and Graphs .................................. 15 4.2.3 Interpretation of Analytical Data .............................................................. 15 5.0 LONG TERM PUMP TEST AT MW-4, MW-26, TW4-19, TW4-20, AND TW 4-4 OPERATIONS REPORT ..................................................................... 17 5.1 Introduction ....................................................................................................... 17 5.2 Pump Test Data Collection ............................................................................... 17 5.3 Water Level Measurements .............................................................................. 17 1 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\201 LQ4Chloroform_Reporuext.doc 5.4 Pumping Rates and Volumes ............................................................................ 18 5.4.1 MW-26 ...................................................................................................... 18 5.5 Mass Removed .................................................................................................. 18 5.6 Inspections ........................................................................................................ 18 5.7 Conditions That May Affect Water Levels in Piezometers .............................. 19 6.0 CORRECTIVE ACTION REPORT ................................................................. 19 6.1 Sample/Duplicate Results ....................................................................................... 19 6.2 Assessment of Previous Quarter's Corrective Actions .......................................... 20 7.0 CONCLUSIONS AND RECOMMENDATIONS ............................................ 21 8.0 ELECTRONIC DATA FILES AND FORMAT .............................................. 22 9.0 SIGNATURE AND CERTIFICATION ........................................................... 23 LIST OF TABLES Table 1 Summary of Well Sampling for the Period Table 2 Mass of Chloroform Removed Per Well Per Quarter Table 3 Chloroform Pumping Rates and Volumes 11 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\2011_Q4Chloroform_Reporuext.doc INDEX OF TABS Tab A Site Plan and Perched Well Locations White Mesa Site Tab B Order of Sampling and Field Data Worksheets Tab C Weekly and Monthly Depth to Water Data Tab D Kriged Current Quarter Groundwater Contour Map, Capture Zone Map, Capture Zone Details Map, and Depth to Water Data Table Tab E Kriged Previous Quarter Groundwater Contour Map Tab F Hydrographs of Groundwater Elevations Over Time for Chloroform Monitoring Wells Tab G Depths to Groundwater and Elevations Over Time for Monitoring Wells Tab H Laboratory Analytical Reports Tab I Quality Assurance and Data Validation Tables 1-1 Field Data QAJQC Evaluation 1-2 Holding Time Evaluation 1-3 Receipt Temperature Check 1-4 Analytical Method Check 1-5 Reporting Limit Evaluation 1-6 Trip Blank Evaluation 1-7 QAJQC Evaluation for Sample Duplicates 1-8 QC Control Limits for Analyses and Blanks 1-9 Rinsate Evaluation Tab J Kriged Current Quarter Chloroform Isoconcentration Map Tab K Analyte Concentration Data Over Time Tab L Chloroform Concentration Trend Graphs Tab M CSV Transmittal Letter 111 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\2011_Q4Chloroform_Reporuext.doc 1.0 INTRODUCTION The presence of chloroform was initially identified in groundwater at the White Mesa Mill (the "Mill") as a result of split sampling performed in May 1999. The discovery resulted in the issuance of State of Utah Notice of Violation ("NOV") and Groundwater Corrective Action Order ("CAO") State of Utah Department of Environmental Quality ("UDEQ") Docket No. UGQ-20-01, which required that Denison Mines (USA) Corp. ("DUSA") submit a Contamination Investigation Plan and Report pursuant to the provisions of UAC R317-6-6.15(D). The frequency of chloroform sampling, which was initially performed on a monthly basis, was modified on November 8, 2003. Since that time all chloroform contaminant investigation wells have been sampled on a quarterly basis. This is the Quarterly Chloroform Monitoring Report for the fourth quarter of 2011 as required under the NOV and CAO. This Report also includes the Operations Report for the Long Term Pump Test at MW-4, TW4-19, MW-26 (previously referred to as TW4- 15), TW4-20, and TW4-4 for the quarter. 2.0 CHLOROFORM MONITORING 2.1 Samples and Measurements Taken During the Quarter A map showing the location of all groundwater monitoring wells, piezometers, existing wells, temporary chloroform contaminant investigation wells and temporary nitrate investigation wells is attached under Tab A. Chloroform samples and measurements taken during this reporting period (October through December), are discussed in the remainder of this section. During this quarter, 13 wells and 1 rinsate were resampled for Volatile Organic Compounds ("VOCs") because the laboratory missed the holding time. The resampled wells are listed in Table 1. 2.1.1 Chloroform Monitoring Quarterl y sampling for chloroform monitoring parameters is currently required in the following wells: TW4-1 TW4-2 TW4-3 TW4-4 TW4-5 TW4-6 TW4-7 TW4-8 TW4-9 TW4-10 TW4-11 TW4-12 TW4-13 TW4-14 TW4-16 TW4-18 TW4-19 TW4-20 1 N:\Required Reports\Chloroform Quarterly Monitoring Report\201l Q4\20l LQ4Chloroform_Reporuext.doc TW4-21 TW4-22 TW4-23 TW4-24 TW4-25 MW-4 MW-26 (formerly TW4-15) MW-32 (formerly TW4-17) TW4-26 Table 1 provides an overview of all wells sampled during the current period, along with the date samples were collected from each well, and the date(s) which analytical data were received from the contract laboratory. Table 1 also identifies equipment rinsate samples collected, as well as sample numbers associated with the deionized field blank (DlFB) and any required duplicates. As indicated in Table 1, chloroform monitoring was performed in all of the required chloroform monitoring wells. 2.1.2 Parameters Analyzed Wells sampled during this reporting period were analyzed for the following constituents: • Chloroform • Chloromethane • Carbon tetrachloride • Methylene chloride • Chloride • Nitrate plus Nitrite as Nitrogen Use of analytical methods is consistent with the requirements of the Chloroform Investigation Monitoring Quality Assurance Program (the "Chloroform QAP") attached as Appendix A to the White Mesa Uranium Mill Groundwater Monitoring Quality Assurance Plan ("QAP"). 2.1.3 Groundwater Head Monitoring Depth to groundwater was measured in the following wells and/or piezometers, pursuant to Part I.E.3 of the Groundwater Discharge Permit (the "GWDP"): • The quarterly groundwater compliance monitoring wells. • Existing monitoring well MW -4 and all of the temporary chloroform investigation wells. • Piezometers -P-l, P-2, P-3, P-4 and P-S. • MW-20andMW-22. • 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. • The DR piezometers which were installed during the Southwest Hydrologic Investigation. In addition, weekly and monthly depth to groundwater measurements were taken in MW- 4, MW-26, TW4-19, TW4-20, and TW4-4, as part of the long term pumping test for MW-4. 2 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\2011_Q4Chloroform_Reporuext.doc 2.2 Sampling Methodology and Equipment and Decontamination Procedures DUSA completed, and transmitted to UDEQ on May 25, 2006, a revised QAP for sampling under the Mill's Groundwater Discharge Permit ("GWDP"). While the water sampling conducted for chloroform investigation purposes has conformed to the general principles set out in the QAP, some of the requirements in the QAP were not fully implemented prior to UDEQ's approval, for reasons set out in correspondence to UDEQ dated December 8, 2006. Subsequent to the delivery of the December 8, 2006 letter, DUSA discussed the issues brought forward in the letter with UDEQ and has received correspondence from UDEQ about those issues. In response to UDEQ's letter and subsequent discussions with UDEQ, DUSA has incorporated changes in chloroform Quality Assurance ("QA") procedures in the form of the Chloroform QAP, which is a separate Appendix A to the QAP. The Chloroform QAP describes the differing needs of the chloroform investigation program, and is an attachment to the GWDP QAP where QA requirements for the chloroform investigation are addressed. On June 20, 2009 the Chloroform QAP was modified to require that the quarterly chloroform reports include additional items specific to DUSA's ongoing pump testing and chloroform capture efforts. The sampling methodology, equipment and decontamination procedures that were performed for the chloroform contaminant investigation, as summarized below, are consistent with the QAP and the Chloroform QAP. 2.2.1 Well Purging and Depth to Groundwater A list of the wells in order of increasing chloroform contamination is generated quarterly. The order for purging is thus established. The list is included with the Field Data Worksheets under Tab B. Mill personnel start purging with all of the non-detect wells and then move to the more contaminated wells in order of chloroform contamination. Before leaving the Mill office, the portable pump and hose are rinsed with DI water. A rinsate blank sample is collected at the beginning of each day prior to the first use of the pump. Mill personnel then proceed to the first well which is the well with the lowest concentration of chloroform based on the previous quarter's sampling results. Well depth measurements are taken and the two casing volumes are calculated for those wells which do not have a dedicated pump (measurements are made using the same instrument used for the monitoring wells under the Mill's GWDP). If the well has a dedicated pump, it is pumped on a set schedule per the remediation plan and is considered sufficiently evacuated to immediately collect a sample; however, if a pumping well has been out of service for 48 hours or more, DUSA will follow the purging requirements outlined in Section 6.2.7(d)(v) of the QAP. The dedicated pump is used to collect parameters and to collect the samples as described below. If the well does not have a dedicated pump, a Grundfos pump (9 -10 gpm pump) is then lowered to the screened interval in the well and purging is started. The purge rate is measured for the well by using a calibrated 5 gallon bucket. The purging of the well is completed per Section 6.2.5 of the QAP. In wells where the portable pump is used, a disposable bailer is used to collect the samples 3 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\2011_Q4Chloroform_Reporuext.doc the day following purging activItIes. After each use, the portable pump is decontaminated prior to reuse at the next sample location. This purging process is repeated at each well location moving from least contaminated to the most contaminated well. All wells are capped and secured prior to leaving the sampling location. Wells with dedicated pumps are sampled when the pump is in the pumping mode. If the pump is not pumping at the time of sampling, it is manually switched on by the Mill Personnel. The well is pumped for approximately 5 to 10 minutes prior to the collection of the field parameters. Per the approved QAP, one set of parameters is collected. Samples are collected following the measurement of one set of field parameters. The pump is turned off and allowed to resume its timed schedule. 2.2.2 Sample Collection Samples are collected as described above. In all cases, on days when samples will be collected, a cooler with ice is prepared. The trip blank is also gathered at that time (the trip blank for these events is provided by the Analytical Laboratory). Once Mill Personnel arrive at the well sites, labels are filled out for the various samples to be collected. All personnel involved with the collection of water and samples are then outfitted with rubber gloves. Chloroform investigation samples are collected by means of disposable bailers. Mill personnel use a disposable bailer to sample each well that does not have a dedicated pump. The bailer is attached to a reel of approximately 150 feet of nylon rope and then lowered into the well. After coming into contact with the water, the bailer is allowed to sink into the water in order to fill. Once full, the bailer is reeled up out of the well and the sample bottles are filled as follows: • Volatile Organic Compound ("VOC") samples are collected first. This sample consists of three 40 ml vials provided by the Analytical Laboratory. The VOC sample is not filtered and is preserved with HCI; • A sample for nitrate/nitrite is then collected. This sample consists of one 250 ml. bottle which is provided by the Analytical Laboratory. The nitrate/nitrite sample is also not filtered and is preserved with H2S04; • A sample for chloride is then collected. This sample consists of one 500 ml. bottle which is provided by the Analytical Laboratory. The chloride sample is also not filtered and is not chemically preserved. After the samples have been collected for a particular well, the bailer is disposed of and the samples are placed into the cooler that contains ice. The well is then recapped and Mill personnel proceed to the next well. 4 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\201 LQ4Chloroform_Reporuext.doc 2.3 Field Data Attached under Tab B are copies of all Field Data Worksheets that were completed during the quarter for the chloroform contaminant investigation monitoring wells identified in paragraph 2.1.1 above, and Table 1. 2.4 Depth to Groundwater Data and Water Table Contour Map Attached under Tab C are copies of the Depth to Water Sheets for the weekly monitoring of MW-4, MW-26, TW4-19, TW4-20, and TW4-4, as well as the monthly depth to groundwater data for chloroform contaminant investigation wells measured during the quarter. Depth to groundwater measurements which were utilized for groundwater contours are included on the Quarterly Depth to Water Worksheet at Tab D of this report, along with the kriged groundwater contour map for the current quarter generated from this data. A copy of the kriged groundwater contour map generated from the third quarter 2011 data is provided under Tab E. 2.5 Laboratory Results 2.5.1 Copy of Laboratory Results All analytical results were provided by Energy Laboratories ("EL"). Table 1 lists the dates when analytical results were reported to the QA Manager for each well or other sample. Results from analysis of samples collected for the quarter chloroform contaminant investigation are provided under Tab H of this Report. Also included under Tab Hare the results of analyses for duplicate samples, the DIFB, and rinsate samples for this sampling effort, as identified in Table 1, as well as results for trip blank analyses required by the Chloroform QAP. 2.5.2 Regulatory Framework As discussed in Section 1.0, above, the NOV and requirements of the CAO triggered a series of actions on DUSA's part. In addition to the monitoring program, DUSA has equipped five wells with pumps to recover impacted groundwater, and has initiated recovery of chloroform from the perched zone. Sections 4 and 5, below, interpret the groundwater level and flow information, contaminant analytical results, and pump test data to assess effectiveness of DUSA's chloroform capture program. 3.0 QUALITY ASSURANCE AND DATA VALIDATION The QA Manager performed a QA/Quality Control ("QC") 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 QC review of laboratory methods and 5 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\201CQ4Chloroform_Reporuext.doc 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 QAlQC are discussed in Sections 3.4.4 through 3.4.9 below. The analytical laboratory has provided summary reports of the analytical quality QAlQC measurements necessary to maintain conformance with National Environmental Laboratory Accreditation Conference ("NELAC") certification and reporting protocol. The Analytical Laboratory QAlQC 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 Tab H. Results of review of the laboratory QAlQC information are provided under Tab I and are discussed in Section 3.4, below. 3.1 Field QC Samples The following 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. Field QC samples for the chloroform investigation program consist of one field duplicate sample for each 20 samples, a trip blank for each shipped cooler which contains VOCs, one DIFB and rinsate samples. During this quarter, two duplicate samples were collected as indicated in Table 1. The duplicates were sent blind to the analytical laboratory and analyzed for the same parameters as the chloroform wells. Three trip blanks were provided by Energy Laboratories and returned with the quarted y chloroform monitoring samples. Three rinsate blank samples were collected as indicated on Table 1. Rinsate samples were labeled with the name of the subsequently purged well with a terminal letter "R" added (e.g. TW4-7R). The results of these analyses are included with the routine analyses under Tab H. In addition, one DIFB, while not required by the Chloroform QAP, was collected and analyzed for the same constituents as the well samples and rinsate blank samples. 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 and Chloroform QAP were being adhered to and that the SOPs were implemented, except as described below. 6 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\2011_Q4Chloroform_Reporuext.doc One site procedure requiring clarification was noted during the QA Manager's review of the field data. As previously stated, a list of the wells in order of increasing chloroform contamination (based on the previous quarter's data) is generated quarterly prior to the next quarter's sampling to determine the order for purging prior to sampling. Consistent with the approved QAP, each quarterly event begins with purging of the wells from the least affected to the most affected based on the previous quarter's data. Although purging follows this order, the sampling order may deviate slightly from the generated list. This practice does not affect the samples for these reasons: any wells sampled in slightly different order had either dedicated pumps or were sampled via a disposable bailer. This practice does not affect the quality or usability of the data as there is no cross- contamination resulting from sampling order. DUSA intends to propose an amendment to clarify this practice in the next revision of the QAP. 3.3 Analyte Completeness Review All analyses required by the GWDP for chloroform monitoring for the period were performed. 3.4 Data Validation The QAP and GWDP identify the data validation steps and data QC checks required for the chloroform monitoring program. Consistent with these requirements, the QA Manager performed the following evaluations: a field data QAlQC evaluation, a holding time check, a receipt temperature check, an analytical method check, a reporting limit evaluation, a trip blank check, a QAlQC evaluation of sample duplicates, a QC Control Limit check for analyses and blanks including the DIFB and a rinsate sample check. Each evaluation is discussed in the following sections. Data check tables indicating the results of each test are provided under Tab I. 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 used for development of groundwater contour maps were conducted within a five-day period as indicated by the measurement dates in the summary sheet under Tab D. The results of this quarter's review of field data are provided under Tab I. Based upon this review, all non-pumping wells conformed to the QAP requirement to evacuate two well casing volumes before sampling except TW 4-1, TW 4-2, TW 4-3, TW4-6, TW4-7, TW4-10, TW4-11, TW4-13, TW4-14, TW4-16, TW4-22, and TW4-26. All of these wells were pumped to dryness before two casing volumes were evacuated and as such the requirement to purge two casing volumes does not apply. In each case, 7 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\201 LQ4Chloroform_Reporuext.doc representative samples of formation water were collected after the wells were allowed to recover. During review of the field data sheets, it was observed that sampling personnel consistently recorded depth to water to the nearest 0.01 foot. All field parameters for all wells were within the required Relative Percent Difference ("RPD") (other than the wells that were pumped to dryness and the wells which are continually pumped, for which this requirement does not apply), except as follows. The review of the field sheets for compliance with QAP requirements resulted in the observations noted below. The requirements in Section 6.2.7 of the QAP specifically state that field parameters must have stabilized to within 10% over at last 2 consecutive measurements. During the fourth quarter 2011 sampling event, all field parameters were stabilized within 10%. The QAP states that turbidity should be less than 5 Nephelometric Turbidity Units ("NTU") prior to sampling unless the well is characterized by water that has a higher turbidity. Due to missed hold times at the lab, many of the wells had to be resampled. The resample yielded thirty-eight total samples (compared to the normal of twenty-seven) for the quarter, and of those thirty-two turbidity measurements exceeded the QAP's 5 NTU goal. Of the thirty-two samples, 16 samples were taken after the well had been pumped to dryness. 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 below are included for information purposes only. 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 chloroform 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 in Tab I. All samples were received and analyzed within the required holding time. 3.4.3 Receipt Temperature Evaluation Chain of Custody sheets were reviewed to confirm compliance with the QAP requirement which specifies that samples be received at 6°C or lower. Sample temperatures checks are provided in Tab I. All samples were received within the required temperature limit. 8 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\2011_Q4Chloroform_Reporuext.doc 3.4.4 Analytical Method Checklist All analytical methods reported by the laboratory were checked against the required methods enumerated in the Chloroform QAP. Analytical method checks are provided in Tab I. All methods were consistent with the requirements of the Chloroform QAP. 3.4.5 Reporting Limit Evaluation All analytical method reporting limits reported by the laboratory were checked against the reporting limits enumerated in the Chloroform QAP. Reporting Limit Checks are provided under Tab I. All analytes were measured and reported to the required reporting limits, except 23 sets (22 samples and 1 duplicate) of sample results 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. 3.4.6 Trip Blank Evaluation All trip blank results were reviewed to identify any VOC contamination resulting from transport of the samples. Trip blank checks are provided in Tab I. All trip blank results were less than the reporting limit for all VOCs. 3.4.7 QAlQC Evaluation for 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 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 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 reported detection limit and the RPD is greater than 20%. The additional duplicate information is provided for information purposes. One analytical result for the sample/duplicate pairs was outside the 20% RPD acceptance limits. Due to missed holding times at the laboratory, the sample TW4-6 had to be resampled for VOCs. The duplicate of the original sample TW 4-70 was analyzed within required holding time and did not require a resample. By not resampling the duplicate the comparative results of the resample to the original duplicate yielded an RPD for chloroform outside the 20% RPD acceptance limits. All results of the RPD test are provided in Tab I. Corrective actions for this issue are described in Section 6.1 9 N:\Required Reports\Chloroform Quarterly Monitoring Report\20 I 1 Q4\20 ll_Q4Chloroform_Reporuext.doc 3.4.8 Rinsate Sample Check Rinsate blank sample checks are provided in Tab I. A comparison of the rinsate blank sample concentration levels to the QAP requirements -that rinsate sample concentrations be one order of magnitude lower than that of the actual well -indicated that all of the rinsate blank analytes met this criterion. 3.4.9 Other Laboratory QAlQC Section 9.2 of the QAP requires that the laboratory's QAlQC 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-specified acceptance limits, or that the case narrative sufficiently explains any deviation from these limits. Results of this quantitative check are provided in Tab I. All lab QAlQC results met these specified acceptance limits except as noted below. The QAP Section 8.1.2 requires that an MSIMSD (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 MSIMSD pair, and the QAP does not specify that the MSIMSD pair be prepared on DUSA samples only. Acceptance limits for MSIMSDs 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 an MSIMSD 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 QAlQC Summary Reports indicates that the MSIMSDs recoveries and the associated RPDs for all quarterly chloroform samples are within acceptable laboratory limits for all regulated compounds except as indicated in Tab I. The recoveries, which are outside of the laboratory established acceptance limits, do not affect the quality or usability of the data because the recoveries outside of the acceptance limits are indicative of matrix interference. The QAP requirement to analyze a MSIMSD 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 10 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\2011_Q4Chloroform_Reporuext.doc data associated with the routine quarterly sampling met the requirement specified in the QAP. The information from the Laboratory QAlQC Summary Reports indicates that the surrogate recoveries for all quarterly chloroform samples were within acceptable laboratory limits for all surrogate compounds except as indicated in Tab I. Eleven surrogate recoveries were above the laboratory established acceptance limits or had a high recovery, indicating a high bias to the individual sample results. A high bias means that reported results may be higher than the actual results. 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. The information from the Laboratory QAlQC Summary Reports indicates that all LCS recoveries were within acceptable laboratory limits for all LCS compounds. 4.0 INTERPRETATION OF DATA 4.1 Interpretation of Groundwater Levels, Gradients and Flow Directions. 4.1.1 Current Site Groundwater Contour Map As stated above, a listing of groundwater level readings for the current quarter (shown as depth to groundwater in feet) is included under Tab D. The data from this tab has been interpreted (kriged) and plotted in a water table contour map, provided under the same tab. Also included under Tab D is a groundwater contour map of the Mill site and a more detailed map of a portion of the Mill site where the chloroform pumping wells are located, in each case with hand-drawn stream tubes, depicting hydraulic capture from the pumping. The water level contour maps indicate that perched water flow ranges from generally southwesterly beneath the Mill site and tailings cells to generally southerly along the eastern and western margins of White Mesa. Perched water mounding associated with the wildlife ponds locally changes the flow patterns. For example, northeast of the Mill site, mounding associated with wildlife ponds results in locally northerly flow near MW-19. Flow directions are also locally influenced by pumping at MW-4, MW-26, TW4-4, TW4- 19, and TW4-20. Significant cones of depression have formed in the vicinity of all pumping wells except TW 4-4, which began pumping in the first quarter of 2010. Although pumping at TW 4-4 has depressed the water table in the vicinity of TW 4-4, a well-defined cone of depression is not evident. The lack of a well-defined cone of depression likely results from 1) variable permeability conditions in the vicinity of TW4- 4, and 2) persistent relatively low water levels at adjacent well TW4-14. Changes in water levels at wells immediately south of TW4-4 resulting from TW4-4 pumping are expected to be muted because TW 4-4 is located at a transition from relatively high to relatively low permeability conditions south (downgradient) of TW4-4. The permeability of the perched zone at TW4-6 and TW4-26 is approximately two orders 11 N:\Required Reports\Chloroform Quarterly Monitoring Repolt\20ll Q4\2011_Q4Chloroform_Reporuext.doc of magnitude lower than at TW4-4. Any drawdown of water levels at wells immediately south of TW 4-4 resulting from TW 4-4 pumping is also difficult to determine because of a general, long-term increase in water levels in this area. Water levels at TW4-4 and TW4- 6 increased by nearly 2.7 and 2.9 feet, respectively, between the fourth quarter of 2007 and the fourth quarter of 2009 Gust prior to TW4-4 pumping) at rates of approximately 1.2 feet/year and 1.3 feet/year, respectively. However, the increase in water level at TW4- 6 has been reduced since the start of pumping at TW4-4 (first quarter of 2010) to less than 0.5 feet/year suggesting that TW 4-6 is within the hydraulic influence of TW 4-4. The lack of a well-defined cone of depression at TW4-4 is also influenced by the persistent, relatively low water level at non-pumping well TW4-14, located east of TW4- 4 and TW4-6. For the current quarter, the water level at TW4-14 (approximately 5526 feet above mean sea level [ft amsl]) is approximately 13 feet lower than the water level at TW4-6 (approximately 5539 ft amsl) and approximately 18 feet lower than at TW4-4 (approximately 5544 ft amsl) even though TW4-4 is pumping. Recently installed well TW4-27 (located south of TW4-14) had a static water level similar to TW 4-14 of approximately 5524 ft amsl based on the surveyed measuring point elevation of 5607.9 ft amsl and the 84 foot depth to water measured prior to hydraulic testing and development. The 5524 foot water level elevation is consistent with the surveyed land surface elevation of 5606.2 ft amsl and the 82 foot depth to water reported on the well construction diagram. The 5524 foot water level elevation is considered more representative than the reported fourth quarter elevation of approximately 5518 ft amsl (based on a 90.2 foot depth to water measured on December 21) which is likely the result of slow recovery after development (by overpumping) on the previous day (December 20). The similarity of water levels at TW4-14 and TW4-27 suggests that the water level at TW4-14 is not anomalous. Prior to the installation of TW4-27, the persistently low water level at TW 4-14 was considered anomalous because it appears to be downgradient of all three wells TW4-4, TW4-6, and TW4-26, yet there is no chloroform at TW4-14. Chloroform has apparently migrated from TW4-4 to TW4-6 and from TW4-6 to TW4-26 which suggests that TW4-26 is actually down gradient of TW4-6, and TW4-6 is actually downgradient of TW 4-4, regardless of the flow direction implied by the low water level at TW4-14. The water level at TW4-26 (5538.2 feet amsl) is, however, lower than water levels at adjacent wells TW4-6 (5538.9 feet amsl), and TW4-23 (5542.6 feet amsl) Hydraulic tests conducted in November, 2011 indicate that the permeability at TW4-27 is an order of magnitude lower than at TW 4-6 and three orders of magnitude lower than at TW4-4. The similar water levels at TW4-14 and TW4-27, and the low permeability estimate at TW 4-27 suggest that both wells are located in materials having lower permeability than nearby wells. The low permeability condition likely reduces the rate of long-term water level increase at TW4-14 and TW4-27 compared to nearby wells, yielding water levels that appear anomalously low. Because the water levels at TW 4-14 and TW4-27 are likely not anomalous, both wells are considered to be hydraulically downgradient of TW4-6 and TW4-26. The low permeability condition is, however, 12 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\2011_Q4Chloroform_ReporuexLdoc expected to retard the transport of chloroform to TW 4-14 and TW 4-27 (compared to nearby wells). 4.1.2 Comparison of Current Groundwater Contour Maps to Groundwater Contour Maps for Previous Quarter The groundwater contour maps for the Mill site for the quarter, as submitted with the Chloroform Monitoring Report for the third quarter of 2011, are attached under Tab E. A comparison of the water table contour maps for the current (fourth) quarter of 2011 to the water table contour maps for the previous quarter (third quarter of 2011) indicates similar patterns of draw down related to pumping of MW-4, MW-26, TW4-4, TW4-19 and TW4-20. The water level contour map for the current quarter covers a larger area than the map for the previous quarter and incorporates water level elevations from new DR-series piezometers and the elevations of seeps and springs connected to the perched water system. Otherwise, water levels and water level contours for the site have not changed significantly since the last quarter, except for a few locations. As discussed in Section 4.1.1, pumping at TW 4-4, which began in the first quarter of 2010, has depressed the water table near TW4-4, but a well-defined cone of depression is not yet evident, likely due to variable permeability conditions near TW4-4 and the low water level at adjacent well TW4-14. Reported decreases in water levels of approximately 7 feet occurred in recently installed well MW-37 and of approximately 3 feet occurred in well MW-23. Reported increases in water level of approximately 10 feet occurred in pumping well TW4-20 and of approximately 3 feet occurred in well TWN-9. The water level changes at pumping wells MW-4, MW-26, and TW4-19 were less than 5 feet. Water level fluctuations at pumping wells MW-4, MW-26, TW4-4, TW4-19, and TW4- 20 are due in part to fluctuations in pumping conditions just prior to and at the time the measurements are taken. The largest decrease (increase in drawdown) of approximately 2 feet occurred in well MW-26 and the largest increase (decrease in drawdown), of approximately 10 feet, occurred in well TW4-20. The reported water level at well MW- 37 during the current quarter is similar to the reported second quarter water level which suggests that the third quarter water level result may have been anomalous. 4.1.3 Hydrographs Attached under Tab Fare hydro graphs showing groundwater elevation in each chloroform contaminant investigation monitor well over time. 4.1.4 Depth to Groundwater Measured and Groundwater Elevation Attached under Tab G are tables showing depth to groundwater measured and groundwater elevation over time for each of the wells listed in Section 2.1.1 above. 13 N:\Required Reports\Chloroform Quarterly Monitoring Repon\20 II Q4\2011_Q4Chloroform_Reporuext.doc 4.1.5 Evaluation of the Effectiveness of Hydraulic Capture Perched water containing chloroform has been removed from the subsurface by pumping MW-4, MW-26, TW4-4, TW4-19, and TW4-20. The primary purpose of the pumping is to reduce total chloroform mass in the perched zone as rapidly as is practical. Pumping wells up gradient of TW 4-4 were chosen for pumping because 1) they are located in areas of the perched zone having relatively high permeability and saturated thickness, and 2) high concentrations of chloroform were detected at these locations. The relatively high transmissivity of the perched zone in the vicinity of these pumping wells results in the wells having a relatively high productivity. The combination of relatively high productivity and high chloroform concentrations allows a high rate of chloroform mass removal. TW4-4 is located in a downgradient area having relatively high chloroform concentrations but relatively small saturated thickness, and at a transition from relatively high to relatively low permeability conditions downgradient of TW4-4. As with the other pumping wells, pumping TW 4-4 helps to reduce the rate of chloroform migration in downgradient portions of the plume. The impact of pumping is indicated by the water level contour maps attached under Tabs D and E. Cones of depression have developed in the vicinity of MW-4, MW-26, TW4- 19, and TW4-20 which continue to remove significant quantities of chloroform from the perched zone. The water level contour maps indicate effective capture of water containing high chloroform concentrations in the vicinities of these pumping wells. Overall, the combined capture ofMW-4, MW-26, TW4-19, and TW4-20 has not changed significantly since the last quarter. As noted in Section 4.1.2, decreases in water levels (increases in draw down) of approximately 2 feet occurred at MW-26, and an increase in water level (decrease in drawdown) of approximately 10 feet occurred at TW4-20. The decrease in draw down at TW 4-20 has decreased the apparent capture zone of this well relative to other nearby pumping wells. As discussed in Section 4.1.1, the draw down associated with TW 4-4 is likely less apparent due to variable permeability conditions near TW4-4 and the low water level at adjacent well TW4-14. Chloroform concentrations exceeding 70 ~glL have occurred in the past at some locations downgradient of pumping wells (for example, at TW4-6, located immediately south of TW 4-4), where the lower permeability and relatively small saturated thickness of the perched zone significantly limits the rate at which chloroform mass can be removed by pumping. By removing mass and reducing hydraulic gradients, thereby reducing the rate of downgradient chloroform migration, and allowing natural attenuation to be more effective, pumping at the productive, up gradient locations has a beneficial effect on this downgradient chloroform. Pumping at TW 4-4 was implemented during the first quarter of 2010 to improve capture in this downgradient area to the extent allowable by the lower productivity conditions presumed to exist in this area. The beneficial effect of pumping TW 4-4 is demonstrated by the decrease in chloroform concentrations at TW4-6 from 1000 ~glL to 21 ~glL, and at TW4-26 from 13 ~glL to 5.2 ~glL since pumping began at TW 4-4. Concentrations at these wells have decreased substantially even though they do not unambiguously appear to be within the hydraulic capture of TW 4-4. As discussed in Section 4.1.1, however, the decrease in the long-term rate of water level rise at TW 4-6 since pumping began at TW 4-4 does suggest that TW 4-6 is 14 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\2011_Q4Chloroform_ReporuexLdoc within the hydraulic influence of TW 4-4. Regardless of whether TW 4-6 can be demonstrated to be within hydraulic capture of TW 4-4, pumping TW 4-4 acts to cut off the source of chloroform to TW 4-6 and TW 4-26 by the mechanisms discussed above. 4.2 Review of Analytical Results 4.2.1 Current Chloroform Isoconcentration Map Included under Tab J of this Report is a current chloroform isoconcentration map for the Mill site. 4.2.2 Chloroform Concentration Trend Data and Graphs Attached under Tab K are tables summarizing values for all required parameters, chloride, nitrate/nitrite, carbon tetrachloride, chloroform, chloromethane, and methylene chloride, for each well over time. Attached under Tab L are graphs showing chloroform concentration trends in each monitor well over time. 4.2.3 Interpretation of Analytical Data Comparing the analytical results to those of the previous quarter, as summarized in the table included under Tab K, the following observations can be made: a) Chloroform concentrations have increased by more than 20% in the following wells compared to last quarter: TW4-2, TW4-6, TW4-11, TW4-19, and TW4- 26; b) Chloroform concentrations have decreased by more than 20% in the following wells compared to last quarter: TW4-5, TW4-7, TW4-10, TW4-16, and TW4- 24; c) Chloroform concentrations have remained within 20% in the following wells compared to last quarter: MW-4, MW-26, TW4-1, TW4-4, TW4-18, TW4-20, TW4-21, and TW4-22; d) MW-32, TW4-3, TW4-8, TW4-9, TW4-12, TW4-13, TW4-14, TW4-23, and TW4-25 remained non-detect; and e) Chloroform concentrations at TW4-16 decreased from 9.2 ~glL to non-detect. As indicated, chloroform concentrations at many of the wells with detected chloroform were within 20% of the values reported for the wells during the previous quarter, suggesting that variations are within the range typical for sampling and analytical error. Wells TW4-2, TW4-5, TW4-6, TW4-7, TW4-10, TW4-11, TW4-16, TW4-19, TW4-24, and TW 4-26 had changes in concentration greater than 20%. Of the latter, TW 4-19 is a 15 N:\Required Reports\Chloroform Quarterly Monitoring Report\20 II Q4\20 II_Q4Chloroform_Reporuext.doc pumping well. TW4-2, TW4-7 and TW4-11 are located adjacent to pumping well MW-4; TW4-6 is located adjacent to pumping well TW4-4; TW4-10 and TW4-16 are located adjacent to pumping well MW-26; and TW4-5 is located adjacent to pumping well TW4- 19. Fluctuations in concentrations at pumping wells and wells adjacent to pumping wells likely result in part from changes in pumping. Although the change in concentration at TW4-24 was greater than 20%, the decrease from 1.7 to 1.2 ~glL is likely due to analytical error because the concentrations are close to the detection limit. The change in concentration at TW 4-26 from 2.8 ~glL to 5.2 ~glL is likely due to a combination of analytical error and its location near the downgradient edge of the plume where changes in upgradient pumping are expected to affect concentrations. Pumping well TW4-20 had the highest detected chloroform concentration. Since the last quarter, the chloroform concentration in TW4-20 increased from 6,800 ~g/L to 7,900 ~glL, the concentration in adjacent pumping well TW4-19 increased from 970 ~glL to 2,200 ~glL, the concentration in nearby well TW4-21 decreased from 460 to 390 ~glL, and the concentration in nearby well TW4-22 decreased from 450 ~glL to 400 ~glL. Wells TW4-23 and TW4-25 remained non-detect for chloroform. TW4-24, located west of TW4-22, and TW4-25, located north of TW4-21, bound the chloroform plume to the west and north. The chloroform concentration in TW4-16, located immediately downgradient of the chloroform plume, decreased from 9.2 ~g/L to non-detect. Slight expansion and contraction of the chloroform plume boundaries in response to changes in upgradient pumping are expected to impact the concentrations at TW4-16. In addition, the southernmost boundary of the plume remains between TW 4-4 and TW 4-6 (located just north of southernmost temporary well TW4-26). The chloroform concentration in TW4-6 increased from 16 ~glL to 21 ~glL. Although the concentration increased, TW4-6 remains outside the chloroform plume boundary. Concentrations at TW4-6 have been on a generally downward trend since initiation of pumping of TW4-4 in the first quarter of 2010, and have decreased from 1000 ~glL to 21 ~glL since that time. TW4-6, installed in the second quarter of 2000, was the most downgradient temporary perched well prior to installation of temporary well TW 4-23 in 2007 and temporary well TW 4-26 in the second quarter of 2010. TW 4-6 remained outside the chloroform plume between the second quarter of 2000 and the fourth quarter of 2008. TW4-6 likely remained outside the chloroform plume during this time due to a combination of 1) slow rates of down gradient chloroform migration in this area due to low permeability conditions and the effects of up gradient chloroform removal by pumping, and 2) natural attenuation. Because TW4-6 is again outside the plume boundary, TW4-6 and TW4-23 bound the chloroform plume to the south. The slow rate of chloroform migration in the vicinity of TW 4-6 is demonstrated by comparing the rate of increase in chloroform at this well to the rate of increase in the nearest up gradient well TW 4-4. Concentrations at TW 4-4 increased from non-detect to more than 2,200 ~glL within only 2 quarters whereas 16 quarters were required for concentrations in TW4-6 to increase from non-detect to only 81 ~glL. This behavior is consistent with hydraulic tests performed at TW4-4, TW4-6, and TW4-26 during the 16 N:\Required Reports\Chloroform Quarterly Monitoring Report\20ll Q4\2011_Q4Chloroform_Reporuext.doc third quarter of 2010 that indicate a nearly two order of magnitude decrease in permeability downgradient of TW 4-4. Chloroform migration rates in the vicinity of well TW4-26 are also expected to be relatively low due to up gradient pumping and low permeability conditions. 5.0 LONG TERM PUMP TEST AT MW-4, MW-26, TW4-19, TW4-20, AND TW4-4 OPERATIONS REPORT 5.1 Introduction As a part of the investigation of chloroform contamination at the Mill site, DUSA has been conducting a Long Term Pump Test on MW-4, TW4-19, MW-26, and TW4-20, and, since January 31, 2010, TW 4-4. The purpose of the test is to serve as an interim action that will remove a significant amount of chloroform-contaminated water while gathering additional data on hydraulic properties in the area of investigation. The following information documents the operational activities during the quarter. 5.2 Pump Test Data Collection The long term pump test for MW-4 was started on April 14,2003, followed by the start of pumping from TW4-19 on April 30, 2003, from MW-26 on August 8, 2003, from TW4-20 on August 4, 2005, and from TW4-4 on January 31, 2010. Personnel from Hydro Geo Chern, Inc. were on site to conduct the first phase of the pump test and collect the initial two days of monitoring data for MW -4. DUSA personnel have gathered subsequent water level and pumping data. Analyses of hydraulic parameters and discussions of perched zone hydrogeology near MW-4 has been provided by Hydro Geo Chern in a separate report, dated November 12, 2001, and in the May 26,2004 Final Report on the Long Term Pumping Test. Data collected during the quarter included the following: • Measurement of water levels at MW-4, TW4-19, MW-26, and TW4-20 and, commencing regularly on March 1,2010, TW4-4, on a weekly basis, and at selected temporary wells and permanent monitoring wells on a monthly basis. • Measurement of pumping history, including: pumping rates total pumped volume Operational and non-operational periods. • Periodic sampling of pumped water for chloroform and nitrate/nitrite analysis and other constituents. 5.3 Water Level Measurements 17 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\2011_Q4Chloroform_Reporuext.doc Beginning August 16, 2003, the frequency of water level measurements from MW -4, MW-26, and TW4-19 was reduced to weekly. From commencement of pumping TW4- 20, and regularly after March 1, 2010 for TW4-4, water levels in these wells have been measured weekly. Depth to groundwater in all other chloroform contaminant investigation wells is monitored monthly. Copies of the weekly Depth to Water monitoring sheets for MW-4, MW-26, TW4-19, TW4-20 and TW4-4 and the monthly Depth to Water monitoring sheets for all of the chloroform contaminant investigation wells are included under Tab C. Monthly depth to water measurements for December are recorded in the Field Data Worksheets included under Tab D. 5.4 Pumping Rates and Volumes Table 2 summarizes the recovered mass of chloroform by well per quarter and historically since the inception of the chloroform recovery program for the five currently- active pumping wells. All of the pumping wells do not pump continuously, but are on a delay device. The wells purge for a set amount of time and then shut off to allow the well to recharge. Water from the pumping wells was transferred to the Cell 1 evaporation pond through a pipeline installed specifically for that purpose. The pumping rates and volumes for each of the pumping wells are shown in Table 3. Unless specifically noted below, no operational problems were observed with the well or pumping equipment during the quarter. 5.4.1 MW-26 It was noted via e-mail by Field Personnel that the pump in MW-26 was observed not working on 11116/2011. The pump had been checked and was working properly during the weekly test on 11114/2011. The pump was replaced on the afternoon of 11116/2011 within 24 hours. Field Personnel collected measurements the following week as scheduled. 5.5 Mass Removed Chloroform removal was estimated as of the first quarter 2007. Since that estimation the mass removed by well for each quarter has been compiled in Table 2, indicating that a total of 586.4 pounds of chloroform have been removed to date. 5.6 Inspections Denison has submitted an Operations and Maintenance Plan, Chloroform Pumping System, White Mesa Mill, Blanding, Utah, Revision 2.1 to UDEQ for approval on October 25,2010. Upon approval of that plan, the Mill will commence documenting its required inspections of the operational status of the chloroform pumping wells on an inspection form. An example of the form as well as completed reports for the quarter will be included in future Chloroform reports upon approval by UDEQ. At the time of the publication of this report approval of the Operations and Maintenance Plan, Chloroform Pumping System, White Mesa Mill, Blanding, Utah, Revision 2.1 had not 18 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\2011_Q4Chloroform_Reporuext.doc been received. Operational problems in the pumping wells are summarized above. 5.7 Conditions That May Affect Water Levels in Piezometers There no water was added to the any of the wildlife ponds during the quarter. 6.0 CORRECTIVE ACTION REPORT Necessary corrective actions identified during the current monitoring period are described below. 6.1 Sample/Duplicate Results Identification and Definition of the Problem Sample/Duplicate RPD Results Outside Acceptable Limits The analytical results fo r the sample/duplicate pair (TW 4-6/TW 4-70) was outside the 20% RPD acceptance limits. Fifteen of the 27 chloroform program samples collected in November 2011, including TW4-6, were not analyzed within the required holding times for VOCs. The remainder of the 27 samples, including TW4-70 (the duplicate for TW4- 6), were analyzed within the required holding time required for VOCs. Fifteen samples were re-collected and analyzed in December 2011. Comparison of the re-sampled December 2011 TW4-6 parent with the original November 2011 TW4-70 duplicate sample for the duplicate pair, resulted in an RPD outside the 20% acceptance limits. Assignment of Responsibility for Investigation of the Problem The problem has been investigated by the QA manager. Investigation and Determination of Cause of the Problem Sample/Duplicate RPD Results Outside Acceptable Limits As mentioned above, during the fourth quarter chloroform monitoring, the parent sample, TW 4-6, for the TW 4-6/TW 4-70 duplicate pair was re-sampled and reanalyzed to meet holding time requirements, while the duplicate itself, TW 4-70, did not require re- sampling. Typically, when the laboratory has missed holding times or had other QC issues requiring re-sampling, both the sample and duplicate have been affected by the QC issue and both required re-sampling. In the current case, only the parent sample required re-collection and, as a result, the prime and duplicate sample results for VOCs compared by RPD were not contemporaneous samples. The original and duplicate results for chloride and nitrate, both from the November 2011 sampling (that is, from contemporaneous prime and duplicate samples), did produce RPDs within acceptable limits. 19 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\201 LQ4Chloroform_Reporuext.doc Determination of a Corrective Action to Eliminate the Problem SamplelDuplicate RPD Results Outside Acceptable Limits Denison has determined that for future scenarios involving re-sampling for one or more analyses, sampling personnel will collect one or more duplicate samples during the re- sampling effort, to ensure that analysis of prime samples and duplicate samples are performed on contemporaneous samples. The QC manager has instructed the sampling personnel to follow this revised practice, if resampling is required, beginning with the first quarter of 2012. Assigning and Accepting Responsibility for Implementing the Corrective Action SamplelDuplicate RPD Results Outside Acceptable Limits It will be the joint responsibility of the QA Manager and the Mill's sampling staff to implement the changes and to assess the data to determine if it has corrected the problems. Implementing the Corrective Action and Evaluating Effectiveness SamplelDuplicate RPD Results Outside Acceptable Limits This type of scenario that requires a large amount of resampling at the end of the quarter due to a laboratory error is rare. Field Personnel have been advised that when resampling is required for any reason, any corresponding duplicate samples need to be identified and resample as well. In future scenarios such as these, there will be a joint effort by the QA Manager and Field Personnel, to identify samples with corresponding duplicates and make sure the duplicate is also resampled for proper sample/duplicate analysis. Verifying That the Corrective Action Has Eliminated the Problem If future sampling periods require re-sampling efforts, verification will be performed upon receipt of the analytical data from any re-collected samples and contemporaneous duplicates. 6.2 Assessment of Previous Quarter's Corrective Actions The third quarter 2011 report identified corrective actions for chloroform contamination in the rinsate blank samples. Chloroform contamination present in the third quarter 2011 sampling event confirmed the DI system's inability to provide the volume of DI water necessary for the rinsate process. Field Personnel check the DI system more frequently to address this problem and will continue to do so until the DI system upgrade is completed. Evaluation and selection of a replacement DI system is underway. There were no chloroform detections in the rinsate samples from the fourth quarter chloroform sampling program. 20 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\201 LQ4Chloroform_Reporuext.doc 7.0 CONCLUSIONS AND RECOMMENDATIONS The water level contour maps for the fourth quarter, 2011 indicate effective capture of water containing high chloroform concentrations in the vicinity of pumping wells MW -4, MW-26, TW4-19, and TW4-20. A well-defined capture zone is not evident at TW4-4. The capture zone associated with TW4-4 is likely obscured by the low water level at adjacent well TW 4-14 and the two orders of magnitude decrease in permeability south of TW4-4. However, the decrease in chloroform concentrations at TW4-6 (located down gradient of TW4-4) since the fourth quarter of 2009 is likely related to TW4-4 pumping. Fourth quarter, 2011 chloroform concentrations at many of the wells with detected chloroform were within 20% of the values reported during the previous quarter, suggesting that variations are within the range typical for sampling and analytical error. Changes in concentration greater than 20% occurred in wells TW4-2, TW4-5, TW4-6, TW4-7, TW4-10, TW4-11, TW4-16, TW4-19, TW4-24, and TW4-26; the concentration in well TW4-24 decreased slightly from 1.7 ~g/L to 1.2 ~g/L. Of the wells showing changes in concentration greater than 20%, TW4-19 is a pumping well. TW4-2, TW4-7 and TW4-11 are located adjacent to pumping well MW-4; TW4-6 is located adjacent to pumping well TW4-4; TW4-10 and TW4-16 are located adjacent to pumping well MW-26; and TW4-5 is located adjacent to pumping well TW4-19. Although the change in concentration at TW4-24 was greater than 20%, the decrease from 1.7 to 1.2 ~g/L is likely due to analytical error because the concentrations are close to the detection limit. Fluctuations in concentrations at pumping wells and wells adjacent to pumping wells likely result in part from changes in pumping. Between the current and previous quarters, the concentration in TW 4-26, which is the most down gradient temporary well, increased from 2.8 ~g/L to 5.2 ~g/L. This is likely the result of its location near the down gradient edge of the plume where changes in up gradient pumping are expected to affect concentrations. Fluctuations in concentration at TW4-16 (which changed from 9.2 ~g/L to non-detect) likely result from a similar mechanism. The highest chloroform concentration (7,900 ~g/L) was detected at pumping well TW4- 20. Since the last quarter, the chloroform concentration in TW4-20 increased from 6,800 ~g/L to 7,900 ~g/L, the concentration in adjacent pumping well TW4-19 increased from 970 ~g/L to 2,200 ~g/L, the concentration in nearby well TW4-21 decreased from 460 to 390 ~g/L, and the concentration in nearby well TW4-22 decreased from 450 ~g/L to 400 ~g/L. Fluctuations in concentrations in these wells are likely related to their location near the suspected former office leach field source area in addition to variations in pumping in TW 4-20 and nearby wells. Regardless of these measured fluctuations in chloroform concentrations, sampling of temporary wells TW4-24 (located west of TW4-22) and TW4-25 (located north of TW4-21), indicates these wells remain outside the chloroform plume and thus bound the plume to the west and north. Chloroform was not detected at TW4-25, and was detected at a concentration of 1.2 ~g/L at TW4-24. The chloroform concentration at well TW4-6 increased from 16 ~g/L to 21 ~g/L. This well has been outside the chloroform plume boundary since the fourth quarter of 2010. In 21 N:\Required Reports\Chloroform Quarterly Monitoring Report\20 II Q4\20 II_Q4Chloroform_Reporuext.doc the past, TW 4-6 has been both within and outside the plume. From the first quarter of 2009 through the fourth quarter of 2010, TW 4-6 was within the plume. Prior to that time, between the time of installation in the second quarter of 2000 and the fourth quarter of 2008, TW 4-6 was outside the plume. Although fluctuations in concentrations have occurred, this well likely remained outside the plume between installation in 2000 and the fourth quarter of 2008 due to a combination of 1) slow rates of downgradient chloroform migration in this area due to low permeability conditions and the effects of up gradient chloroform removal by pumping, and 2) natural attenuation. The decreases in concentrations at TW 4-6 since the fourth quarter of 2009 are likely the result of up gradient pumping, in particular pumping at adjacent well TW4-4 (which commenced in the first quarter of 2010). Chloroform remained non-detect at down gradient temporary well TW4-23. TW4-23 and TW4-6 (with a chloroform concentration of 21 ~g/L) bound the chloroform plume to the south. Continued pumping of MW-4, MW-26, TW4-19, and TW4-20 is recommended. Pumping these wells, regardless of any short term fluctuations in concentrations detected at the wells (such as at TW4-20), helps to reduce downgradient chloroform migration by removing chloroform mass and reducing average hydraulic gradients, thereby allowing natural attenuation to be more effective. Continued pumping at TW4-4 is also recommended to improve capture of chloroform to the extent practical in the southern portion of the plume where low permeability conditions exist. The general decrease in chloroform concentrations at TW4-6 from 1000 ~g/L to 21 ~g/L since the first quarter of 2010 is likely related to pumping at TW4-4. The decrease in the long-term rate of water level rise at TW 4-6 since TW 4-4 pumping began, which suggests that TW 4-6 is within the hydraulic influence of TW 4-4, is consistent with the decrease in chloroform concentrations at TW 4-6. 8.0 ELECTRONIC DATA FILES AND FORMAT DUSA has provided to the Executive Secretary an electronic copy of all laboratory results for groundwater quality monitoring conducted under the chloroform contaminant investigation during the quarter, in Comma Separated Values (CSV) format. A copy of the transmittal e-mail is included under Tab M. 22 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\2011_Q4Chloroform_Reporuext.doc 9.0 SIGNATURE AND CERTIFICATION This document was prepared by Denison Mines (USA) Corp. on February 27, 2012. DENISON MINES (USA) CORP. By: \ . Fr denlund Vice Presid 'nt, Regulatory Affairs and Counsel 23 N:\Required Reports\Chloroform Quarterly Monitoring Report\2011 Q4\2011_Q4Chloroform_Reporuext.doc Certification: I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significa t pen lties for submitting false information, including the possibility of fine and en or knowing violations. ---flj'f+-~-+------------------'-'--" Da a C. F ydenlund Vice President, Regulatory Affairs and Counsel Denison Mines (USA) Corp. 24 N:\Required Reports\Chloroform Quarterly Monitoring Report\201l Q4\2011_Q4Chloroform_Reporu ext.doc Tables Table 1: Summary of Well Sampling for the Period Well Sample Date Date of Lab Report MW-04 11116/2011 1212112011 TW4-01 11129/2011 12/2112011 TW4-02 1112912011 12/2112011 TW4-03 1111512011 1212112011 TW4-03R 11114/2011 1212112011 TW4-04 1111612011 1212112011 TW4-05 1111612011 1212112011 TW4-05 (resample) 12/7/2011 1212112011 TW4-06 1111612011 1212112011 TW4-06 (resample) 12/712011 1212112011 TW4-07 1112912011 1212112011 TW4-07R 11128/2011 12/2112011 TW4-08 11116/2011 12/2112011 TW4-08 (resample) 12/7/2011 1212112011 TW4-08R 11115/2011 12/2112011 TW4-08R (resample) 12/7/2011 1212112011 TW4-09 11 /16/2011 12/2112011 TW4-09 (resample) 12/7/2011 1212112011 TW4-10 1111612011 1212112011 TW4-11 1111612011 1212112011 TW4-12 11 /1512011 1212112011 TW4-13 11115/2011 1212112011 TW4-14 1111512011 1212112011 MW-26 11116/2011 1212112011 MW-26 (resample) 12/5/2011 12/2112011 TW4.,16 1111612011 12/2112011 TW4-16 (resample) 12/7/2011 1212112011 MW-32 1111612011 1212112011 MW-32 (resample) 12/612011 12/2112011 TW4-18 1111612011 12/2112011 TW4-18 (resample) 12/712011 1212112011 TW4-19 11117/2011 1212112011 TW4-19 (resample) 12/5/2011 12/2112011 TW4-20 11116/2011 1212112011 TW4-21 1111612011 1212112011 TW4-21 (resample) 12/712011 1212112011 TW4-22 11/16/2011 12/2112011 TW4-22 (resample) 12/712011 1212112011 TW4-23 1111512011 12/2112011 TW4-24 11116/2011 12/2112011 TW4-24 (resample) 12/7/2011 1212112011 TW4-25 1111512011 1212112011 TW4-26 1111612011 1212112011 TW4-26 (resample) 12/7/2011 1212112011 TW4-60 11117/2011 12/2112011 TW4-60 (resample) 12/8/2011 1212112011 TW4-65 1111512011 12/2112011 TW4-70 11/16/2011 1212112011 All sample locations were sampled for Chloroform, Carbon Tetrachloride, Chloromethane, Methylene Chloride, Chloride and Nitrogen "R" following a well number deisgnates a rinsate sample collected prior to purging of the well of that number. TW4-60 is a DI Field Blank, TW4-65 is a duplicate of TW4-3, and TW4-70 is a duplicate ofTW4-6. Highlighted wells are continuously pumped. Table 2 Chloroform Mass Removal Per Well Per Quarter . TW4-1S (MW-26) TW4-19 TW4-20 TW4-4 Quarter MW-4 (lbs.) (lbs.) (lbs.) (lbs.) (lbs.) Quarter Totals (lbs.) Q12007 36.8 12.9 150.2 87.0 NA 286.9 Q22007 1.4 0.1 0.0 2.5 NA 4.0 Q32007 2.2 0.8 2.9 3.1 NA 9.0 Q42007 1.7 1.0 3.1 4.8 NA 10.6 Q12008 1.7 0.4 4.6 7.2 NA 13.8 Q22008 1.3 0.5 3.2 9.9 NA 14.8 Q32008 1.2 0.3 15.9 9.3 NA 26.8 Q42008 1.3 0.3 20.7 0.4 NA 22.7 Q12009 1.7 0.4 4.3 3.6 NA 10.0 Q22009 6.8 0.2 3.7 2.8 NA 13.5 Q32009 1.5 0.4 11.1 5.5 NA 18.5 Q42009 4.8 0.6 17.8 26.1 NA 49.4 Q12010 0.9 0.4 2.7 0.4 NA 4.5 Q22010 1.5 1.0 6.8 5.9 1.4 16.5 Q32010 1.3 1.2 2.0 4.9 1.3 10.6 Q42010 1.1 0.5 7.7 7.4 1.2 17.9 Q12011 1.1 0.2 12.9 9.6 1.1 24.9 Q22011 1.2 0.8 5.3 4.6 1.1 13.1 Q3 2011 * 1.2 0.4 1.1 4.1 1.2 8.1 Q42011 1.2 0.8 2.7 4.8 1.4 10.9 Well Totals (pounds) 71.8 23.2 278.6 203.9 8.8 586.4 * -As noted in the DRC letter received on January 232012, DUSA mistakenly used the 2nd quarter chloroform concentrations for the 3rd quarter mass removal calculation. The concentrations for the 3rd quarter have been corrected and correct total is reflected in Table 2. Table 3 Chloroform Pumping Rates and Volumes Volume of Water Pumped Pumping Well Name during the quarter (gals) Average Pump Rate (gpm) MW-4 89,735 4.3 MW-26 50.191 8.9 TW4-4 109,043 10.7 TW4-19 147,647 13.7 TW4-20 72,089 10.8 INDEX OF TABS Tab A Site Plan and Perched Well Locations White Mesa Site Tab B Order of Sampling and Field Data Worksheets Tab C Weekly and Monthly Depth to Water Data Tab D Kriged Current Quarter Groundwater Contour Map, Capture Zone Map, Capture Zone Details Map, and Depth to Water Data Tab E Kriged Previous Quarter Groundwater Contour Map Tab F Hydrographs of Groundwater Elevations Over Time for Chloroform Monitoring Wells Tab G Depths to Groundwater and Elevations Over Time for Chloroform Monitoring Wells Tab H Laboratory Analytical Reports Tab I Quality Assurance and Data Validation Tables I-I Field Data QAlQC Evaluation 1-2 Holding Time Evaluation 1-3 Receipt Temperature Check 1-4 Analytical Method Check 1-5 Reporting Limit Evaluation 1-6 Trip Blank Evaluation 1-7 QAlQC Evaluation for Sample Duplicates 1-8 QC Control Limits for Analyses and Blanks 1-9 Rinsate Check Tab J Kriged Current Quarter Chloroform Isoconcentration Map Tab K Analyte Concentration Data Over Time Tab L Chloroform Concentration Trend Graphs Tab M CSV Transmittal Letter Tab A Site Plan and Perched Well Locations White Mesa Site iVlW-5 ® perched monitoring well TW4-12 o temporary perched monitoring well TWN-10 ~ temporary perched nitrate monitoring well PIEZ-1 e TW4-27 ~ perched piezometer temporary perched monitoring well installed October, 2011 RUIN SPRING 6 seep or spring '-/ HYDRO GJEO CHJEM, JINC. APPROVED '® ' , MW-18 , .. , ~\.,\ (> TWN-06 <> !TWN~08 .~ , T\(IIN-18 ~. TWN·03 WH~l!E MESA S~rE PLAN SHOW~NG l OCAT~ONS OF PERCHED WEllS AND P~EZOMErfERS DATE REFERENCE H:/718000/feb12/UTMwelloc.srf FIGURE A-1 TabB Order of Sampling and Field Data Worksheets Order of Contamination for 4th Quarter 2011 Chloroform Purging Event Chloroform Well Sample time Levels Rinsate date/time TW 4-" ~ /1 btl" d l,tj TW4-T2 111,6 ",.l1J TW4-1'3 J~rl" 6(/~ TW4-14 !Jb:(tl b~blJ MW-32 n; !(,/ II 1%0 TW 4-23 Il/IYh I 0 « .. '.£ TW 4-25 11/1;111 '',;.1IJ TW4-8 » TW4-9 TW4-24 TW4-26 TW4-1·6 TW4-'5 TW4.:.6 TW4-18 TW4-10 TW4-22 TW4-21 TW4-15 TW4-11 \\llbJI\ J ... , ob'S7 u"1i3 0 -79..3 (j133 {)'143 0153 o\6Da. D-b'19 O~l..\J... ·o~S\ 090\ o<1;:tcc, oq 11;l. ND ND ND ND ND ND ND ND ND 1.7 2.8 9.2 10 16 29 180 450 460 720 820 970 1200 1300 1700 1500 2400 6800 TW4-19 n/n/Ii D1~ TW4-7 I'i /l.GV\\ 11-0.\0 TW4-1 1\/.?.9/111~t5 MW 4 It hltlul235 TW 4-4 /1 bt/n l~"'S TW4-2 \ li.:lq/l' );)..~5 TW4-20 IIUt/urStD TW4-60 0.1. Blank \\In/il TW4-65 Duplicate Tw'-f-r:? TW4-70 Duplicate l\/i6/H Comments: Name: :.'1' Water Well level Depth Date: 141 3 1\ II J 14 J JJ 0705 101.5 102.5 93 130.6 Bladder pump 114 134.8 125 Bl\ II/IS/II OG34 120 112.5 86 142 120 97.5 137.5 Cont. Pumping 111 113.5 121 122.5 Cont. Pumping 100 125 Cont. Pumping 120 110 0, R ll/,2g'/il 04.5'6' 124, Cont. Pumping 112 Cont. Pumping 120 106 Cont. Pumping .. Mill ~ Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 groundwater Monitoring Qualitv Assurance Plan (OA?) I ". ATTACHMENT) ["ENISOn " ..4: \VHITE I\-fESA URANIUM l\ULL !;d~t~,t~~~.J FIELD DATA WORKSHEET FOR GROUND WATER Attachment 1 "'~~:;'~ See instruction Description of Sampling Event: I yTh ()v..o-rh.f'c.h\oiO-t6tM .J.D1\ Location (well name):t.-I t\ ........ w~-.... 4~ ________ ...... Sampler Name and initials: I-r;."nt' WolJ.'dt\;;r1/ Date and Time for Purgin~ t t I i b I Q...oI i . and Sampling (if different) Well Purging Equip Used:[@Jpumpo@ bailer WeU Pump (if other than Bennet) Sampling Event Qv\,CA.c-t"d.'1 L..h \on:;;~(m Prevo Well Sampled in Sampling Event I .M ~\l -~l. TW'-! -17 pH Buffer 7.0 7.0 pH Buffer 4.0 46 . I Specific Conductancel .... _qa..:t{...Lq ___ --'IJ1~IHOS! cm Well Dcpth(O.O 1ft): 11a.'1 ·0D · Depth to Water Before Purgin~ 1Q .70 ., Conductance (avg) ..... 1_. --:;..~.;.-O_IO _____ _ pH of Water (avg) ," '1 Well Water Temp. (avg) l·ltot.50 · Redox Potential (Eh) ' ..... ...;;~S1=-. _---a I Turbidity ..... I ..... .f..::;;;,.D _. __ _ Weather Condo l __ L __ oH-_________ -' _ ..:>uY\n~ : Ext'l Amb. Temp. "e (prior sampling eventlL..I_6/_""_-, Time ):l..";)~ -'1 Gal. Purged c.-I _""",--,--,' I Time Gal. Purged Ia..--__ ---a Conductance I ~ () \ () Conductance pHI.-l __ .1 I 14 ,SO Temp.oC Redox Potential Eh (m V) Redox Potential Eh (nlV) t-I ___ __ Turbidity (NTU) o Turbidity (NTU) I Time Gal. Purged 10.1 _" ___ _ Time Gal. Purged I I.-___ ...... Conductance 10.1 ___ --' pHI.-I ___ -' Conductance pH 1,,-__ -oJ Temp.oC \..1 ___ --' Temp.oC Redox Potential Eh (m V) ...... 1 ___ -' Redox Potential Eh (mV) ...... 1 ___ --' Turbidity (NTU) Turbidity (NTU) White Mesa Mill Field Data Worksheet for Groundwater --, Mill . Groundwater Discharge Permit ) Date: 03/22/2010 Rev. 6 ~roundwater Monitoring Quality Assurance Plan {QA?) VoJumeofWaterPurged '-1 ___ 0 __ ..... Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = ,-I _y,..l,., . ...;.;.j;;;;..~ __ ~ gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= I 0 ) Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory ifOtber Than Energy Lab~L....:..tJ;;..c6;.J..A:....-_____ ....I 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 t;l 0 3x40 ml 0 : .. 00,':" HCL ~ Nutrients ~' p 100m! ,D ... lE. H2SO4 lEI .. ' " Heavy Metals .. 0 .'0 .,' 250ml ',0 .: , D::~:, HN03 0 AB Other Non Radiologies . p .,,, .P .~ 250ml 'Ct .. 0 No 'preseiv . :0 '; ," .. Gross Alpha '.'0 0 . '. 1,0001111 '0: q HN03 [j . ,~ Other (specify) . Sample volume ' . :-.. -. m ".'0 0' BJ 0 .. -. . . C,h\Dr~de If preservative is used. specity Type and Quantity of Preservative: .. , .. ~Connnent ~~f:; See instruction Arr; ve.~ 0(\ 5tt~ «--d-~q . -r&\~r1u-Ma. b.;l(('\y\ Fres~"t -fi,( :A.Mplil7,j e\Jct1+. ·'-~.Af'l}e.~ pUMP 011 . '>~\IYl?le.:> w~rc. +(,\\.(~tl (A.l )~. w,d-er was clear: LA Sft~ trt ):2.37 '--_______ --.....IIDo not touch this cell (Sheet Name) White Mesa Mil! FIeld Data Workshee-t for Groundwater N 0 0 ,d · d 0 f)J Mill· Groundwater Discharge Permit /') Date: 03/22/2010 Rev. 6 . Groundwater Monitoring Quality Assurance Plan (QAP) ". " ~ I PA I ATTACHl\1ENT 1 t l>ENISO,.r.... ' , ; \VHITE 1\'1ESA URANIUM AHLL Attachment 1 .,,'t$/ Se~ il1stru~tion '1~L.,., .. .l~~!1.!.S ... ,~,..."...;~ FIELD DATA \VORKSHEET FOR GROUND 'VATER Dc~cription' of Sa.mpling Event: I 411'\ Q ....... o.~1-tf' Gh lorc,forr"l ' Q..O I \ Location (well name ):1-1 l...;...;.vJ_y-,-• .;:;0-"') _________ -" Sampler Name and initials: 1'1:(\ner Hci Il IJ"~/TH , Dale and Time for Purgin~, \ \ 2~'l~ \\ and Sampling (if different) Well Purging Equip Used: ~pump o@ bailer Well Pump (if other than Bennet) Sampling Event I ~v.Ar+.e.rl j (,h)orcrfc.r"", Prevo Well Sampled in Sampling Event "",I ~_. '_VJ_~_-_O/ ____ ---.. pH Buffer 7.0 I 7 -0 ' , I pH Buffer 4.0 I 4.0 ' 'I 'IWi..\-07 Specific Conductancci-I_'1..1...9.t...<1J-__ -"IIlMHOS/ em Well Depth(O.Olft): t \\0 .C>O ' I Depth to Water Before purgind 6\..\ .S5 ,I Casing Volwne (V) 4" well:1 :;Lt.}. (.."1 IC653h) 311 Wel1:L..._ -.,;' 0:::;...;....'-_---1_ (.367h) Conductance (avg) a.:...C_~_\_\S;.;;......._.;......_~_....l pH of Water (avg) 1-1 '~~:;,.:;-.:t;"";'~""":-"~---';" __ '......II Well Water Temp. (avg) l iI.L\~ I Redox Potential (Eh)1 "$'\ Turbiditya;....:IIu..7g:M..·' ' . .;...,.i ---.......1 I Ext'J Amb. Temp. cC (prior sampling event)1 \" <; I Time I~.u Gal. Purged lB+-. Time I c~O'3 • "' . Gal. Purged I ,55 .. 1 Conductance Conductance Temp.oC "I Temp.oC ~lq .l~_ . .;.--,] Redox Potential Eh (lUV) ..... 1 -.' ___ ...........JI Redox Potential Eh (mV) L...I L\....:.·::;~1-+--.....;...........I Turbidity (NTU) I:, , , I Turbidity (NTU) Time [~-Sn::L:1 Gal. Purged ..... I~~ __ ...... Time I~·::":] GaL Purged { fEf':' ConductanceJ. J.,..;, ___ .... pH ...... I __ --.I Conductance ] pH 1,-___ -..I Temp. ,oC Temp.oC Redox Potential Eh (mV) r....1 ___ --' Redox Potential Eh (rn V) 1-1 ___ -..I Turbidity (NTU) Turbidity (NTU) Wh!te 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 _s..:;,r1 .... · ___ --' gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. Time to evacuate two casing volumes (2V) S/60:;: I \ I :=J T;; 2VIQ = I '5 ·'3.1 I Number of casing volumes evacuated (if other than two) I \,~~ If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Lab! .... _M_f._'lt--....;. _____ ....... 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 '1i:I .. ~-.: 0 ~x40 ml :0 :".:{~ HCL ~'" :·0 .. Nutrients .... -{gI : . ' .. 0 '.-; IOOml 0 .; . -J1J H2SO4 .~ 0 -. Heavy Metals 0 0 ' 250ml ::0 · ":·0 RN03 _. D ' .. :; ".0 " " '.' All Other Non Radiologies :0 -.~O . 250ml .',0 ' '. ',0 No Prcserv. 0 .-,."_ ... ~O -, ~ ". -- Gross Alpha .0 ' :.'0 ' ,;.~ l,OOO InI .:,:0 ":"0 -HN03 '0 :'--0 ," Other (specify) :. 0:-:' SampJe volume " ". ' .... ,".'. '''!. ". -. ,. 'm '. 0 -. "~'. ' .. D - ," '.:. . --. Chlor;de If preservative is used, specify Type and Quantity of Pre~crvative: ~ ! - ~ ~Conmlent r See instruction J"i-(."~ AH; \).,A 0(\ $.;k 0.. t o"1SS . ...,.;;:" tier An 01 &",rr i n rre.!>~nf ~rpv-rje , "'" f' ",r 0\<:' b~~(\ A1 015~. ? \A(~eJ. we..\\ 40(" c.\. tDtk\ 0..\ ~ ),(\\"II\+~ t\f'A lD .6cLonk . P '-Ar~ec\ w~li Jrj . ~+,( oJ~ dlirT:\ W"-~t hl\~ !:.c..nJ. pM+.de.!i :(\ ;t. H)\r:~e €n"e~ "" r O~D;. Left S.;l-c.. c..1' CiS Ob . ,AcIl \Jec.\ on ~ j+~ e.d-~ID. ~(\I\er N'ltt G-ar(,Il'\ rre~-e.n ~o colleCT SG\Y'\ pi z: S . De?~ to:> w<A.+cr \M-A..S b '1 .5 !). SC<.Mf k" w~ r.:: 1;,,,, .Ie J '" 4-I~ J 5. Le+J s i"+<-~t );l. \7 ___________ --'IDo not touch this cell (SheetName) White Mesa Mill FieJd Data Worksheet for Groundwater , . ': "ra \ Mill -Groundwater Discharge Permit ~) Groundwater Monitoring Quality Assurance Plan (QAP} Date: 03/22/2010 Rev. 6 . . . I ATTACHl\'IENT 1 ~t)f.NISO,!)' , Jj \VHITE l\IESA URANIU.M r\·tlLL Attachment 1 '~~~,,-,-! FIELD DATA \VORKSHEET FOR GROUND 'VATER D~~~~ofS~I~Ew~ ~IY~'_~~~~~~~<~r _C~h~lo~ro~~~o_~~ ______________ ~~ Location (well name):11-_·T;,..w_"1:....-..;:W-.;;;;;;-.;.. ___ ..:..-___ ....I Sampler Name and initials: Date and Time for Purgin~ t \I)..&/;)..DI) Well Purging Equip Used: [![]pump o@ bailer Sampling Event ) Q~(A""1-u)q C.h\orD..fbt' ~ pH Buffer 7.0 C -to D Specific Conductancefl... ---<1i-!o!.fQ..:..-__ .... 1 pMHOS/ cm Depth to Water Before PurgingJ '} bY Conductance (avg) 3 l.5f5 . .1 and Sarnpling (if different) Well Pump (if other (han Bennet) Prevo Well Sampled in Sampling Event [ Tw1...\-0 I pH Buffer 4.0 Well Depth(O.OI ft): I t7.D.OO Casing Vohune (V) 41 ' well:1 ~4.~.5.' IC.653h) 3" Well :"..._ ---.;,o_·_.;......lI_ (.367h) pH of Water (avg) Well Water Temp. (avg) ~:=:'J Redox Potential (Eh)[ ~'\ . Turbidityll...y..;..I....;;.;2~_ .... Weather Condo I ··e~~~c\o~t J lXt~ '. '1 Conductance l3(~~~' . '] Time Gal. Purged I y~ I pH ['.1:r:::J Temp. QC Redox Potential Eh (mV) [~~9::':::~] Turbidity (NTU) I q L;t ". I Timet '-___ ...J I Gal. Purged 1...1 ---.;, __ --' Conductance 1-1 __ -"':'....1 pHIoo-I __ _ Temp. QC C._-.I Redox Potential Eh (mY) '-1 ___ -' Turbidity (NTU) "~eMe$a Mill ''Ita Worksheet for Groundwater Ext't Amb. Temp. "C (prior sampling event} .... ' _5v __ l GaL Purged s.....1 __ --..' I Conductance '---__ ..;...I., I pH t.-f __ --I Temp.oC Redox Potential Eh (m V)r !-_-:""-':"-J Turbidity (NTU) I . ., Time I . I Gal. Purged I . I Conductance ] pH I I Temp.oC Redox Potential Eh (m V) t. ____ -A Turbidjty (NTU) \ \ .\ / Mill-Groundwater Discharg@ Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan lOA!» .. Volume of Water Purged r....1 _4...:.,': ~...;;.: ___ ..... gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. Time to evacuate two casing volumes (2V) S!60= I U ] T =2V/Q= I b .;t~ ] 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 __ M_'li_Il _____ ----' Type ofSampJc VOCs Nutrients Heavy Metals An Other Non Radiologies Gross Alpha Other (spcci fy) S I Tak Sampie Vol (indicate amp e en if other than as Y N specified below) ,m'~ '" ":,:~O ,.,: 100 ml .~'. ,0 :. ~,'" :0 ··,· 250 m) ~-: ' . . " ,,:' "0 -""" ,,~, '0 .,' 250 ml ,::, ,'. ,>: ',' [, '" , '.:. , ' ;': . 0 '.", ;',: O·~, -: Cooo ml ,.:,/.j , '; "', . Sample volume :-. iii. ' .,~' D ,: ;', ,'." -:' Filtered Y N Preservative Type Preservative Added Y N q . tEl. " HeL .. l!I,'.: 0 ,: ,D .: ... :.' .m: ., H2S04 , '<. ,1iJ : ,: '.,0 , , c;J , "::':.' fbr.' :, . -.".:-.. ' If preservative is used. spe~ify Type and Quantity of Preservative: See instruction 2Cornment Arr i \l cl. 0 1\ 6~< t.t1 iii b--r,;:n l1er. Md (f,;.{ ( :n rreSCl\f.{Or purj e. p~ ~e ~0\11 17\+ l.2.l'I P~ed well for ~ -1-0+",1 rfr '1 1"Il'''~''~.')' fv.ref enaet\. oJ lXl.."">. w«:Tc. u.:l<\s YVlost/;J c.l CIi-( -l-h(O~hClIl. t p \.\r~e. L cit SIt.:: ... ;-~7 , , , Arc;' v e~ On ;5, te. (.O.·t l;l.\q . ~"I)e(" c;V1t\ &Arrj'"" J'jrC'5>,~Il't .fo colle,,+ 54nt1P'< 5. Oe..p+'h -h ~ter v.Xi-~ b1.5S, 5t\JN1pj.e~ were:.. bll\·)eJ. ~J-1:v;z5. Lett .s ~·t(... 47-1;?.;:Z7. not touch this (ShcetName) Whit~ Mesa Mil! Field Data WorkSheet for Groundwater Min • Groundwater Discharge Permit Oate: 03/22/2010 Rev. 6 . Groundwater Monitoring Quality Assurance Plan (QAP) .j ATTACHi\lENT 1 ! OENISO' I ~ i \VHITE 1\IESA URANIU1\l [HILL Attachment 1 See instruction \;](..,....~.~!t!,~~.,. ..... '""'*"'~J FIELD DATA WORKSHEET FOR GROUND 'VATER Description of Sampling Event: I 9Th Qv..C\rtcf Ch \0 (o.fCr M " ~ t I Sampler Name . _ and initials: ~~~~~I11j =. Location (well name):I i'WY-0":) ~ ~-~~~---------~ Date and Time for Purgin~ 1 \ 11 Y /20 II and Sampling (if different) WeB Purging Equip Used: pump o@ bailer WeB Pump (if other than Bennet) Prevo Well Sampled in Sampling Event r; 4 -03· R pH Buffer 7.0 I ·D pH Buffer 4.0 I '--\. 0 . f Specific Conductance&.-[_~ q-Lq~j __ ---Ill-llvnIOS/ em Well Depth(O.O j ft): I P1', 0 '0 Depth to Water Before Purgin~ ~ q. ·~O . ,I Casing Volume (V) 4" well:IS~Ui' Y653h) 311 Well:_ . D . _J.367h) Conductance (avg) [I-..-~_--:')...L.51...1...H~ ___ ;....t1 pH of Water (avg) Well Water Temp. (avg) I ~~J~,3i=:J Redox Potential (Eh)[: i.\'t4 Turbidityl 40 , ~ I -~ Weather Condo I .... , ~_. o ____ ~_e_r ...... c.._.··(). ..... · 5_t_·.-· ....;.,. ____ -..II Ext'l Amb. Temp . .,( (prior sampling event}11...:3~a_.....t Time 10151 :.) Gal. Purged I" 106 . ! Time I I GaL Purged I I I Conductance pH [G~~:.:~: .. ] ! Ii : Conductance 14#4f·. '1 pH[. I Temp. PC [ 11? .t..1q . i I i Temp.oC I~t .. I Redox Potential Eh (mV) C41i:::J i Redox Potential Eh (mV) I' I Turbidity (NTU) I· YO r.b Turbidity (NTU) I ~ . -.. -----. -------- Time I GaL Purged 1-1 ___ --' Time C ---.J Gal. Purged [ I Conductance C=.=:J pHI a... ___ --' Conductance I I pH I :: I Temp.oC Temp.oC I I Redox Potential Eh (mV) ,-I ___ --' Redox Potential Eh (mV) I ' I Turbidity (NTU) Turbidity (NTU) [.~ I White Mesa Mill Field Oata Worksheet for Groundwater Mill-Groundwater Discharge Permit .,., • Groundwater Monjtoring Quality Assurance Plan {QAP} I. j ""-'"\, ! ) Date: 03/22/2010 Rev. 6 Volume of Water Purged 1r........lll...:.l..;;.O ___ ..... gallon(s) PumQing Rate Calculation Flow Rate (Q), in gpm. S/60 = II---l\~{) __ ---' Time to evacuate two casing volumes (2V) T = 2 V JQ = I n-'ill . =J Number of casing volumes evacuated (if other than two) Ifwell evacuated to dryness, number of gallons evacuated (no -I Name of Certified Analytical Laboratory jfOther Than Energy LabG .... ...;.._,rJ_~..:...'A.:...-_' _-____ ---II Type of Sample VOCs Nutrients Heavy Metals AJ I Other Non Radiologies Gross Alpha Other (specify) Sample Vol (indicate Sample Taken if other than as Y N specified below) Filtered y N Preservative Type Preservative Added Y N If preservative is used, specify Type and Quantity of Preservative: N ~d See instruction ~Commcnt '--_______ --IIDo not touch this cell (SheetName) White Mesa MtH Field Data Worksheet for Groundwater .. MiII-Groundwater Discharge Permit ' -'') • Groundwater Monitoring Quality Assurance Plan (CAP) _.' ) Date: 03/22/2010 Rev. 6 / .. A TT ACHl\IENT 1 I OENISO,})A A! \VI-IITE I\IESA URANIUM l\ULL Attachment 1 _ .{~1 Set; instmetlon ~~;L"";YJ-\~!~!!~<;. __ ~_j FIELD DATA WORKSHEET FOR GROUND 'VATER Description ofSrunpling Event: I 41""" Q"",o..f'ter Lh\c("C~OfM ;2..011 Location (well name):_I_-r;;...v..) ___ 1,.;..:.\_ ... ..;::;O...;;;3;;;..R~ ______ ..,J Sampler Name and initials: I ~I'lner U-6U,.JUd/11t Date and Time for Purgin~ i III j / j.ot' . ] and Sampling (if different) ] Well Purging Equip Used: [!!Jpump o@ bailer Wen Pump (if other than Bennet) Sampling Event I-Q""'r>..,..te. .. \~ (..htot"of orM Prevo Wen Sampled in Sampling Event _I_N_I_A _____ ---.J pH Buffer 7.0 Specific Conductance,,-I ....:~....:.<t..J.1 ______ -""'J.lMHOSl em Depth to Water Before PurgingJ __ o __ _ Conductance (avg) ~L _. _---::::b:..-, . .....,;4_· ____ · ';...:.1 pH Buffer 4.0 4.0 Well Depth(O.Olft): \..,,;I_o ___ --..l Casing Volume (V) pH of Water (avg) 4" \Vell:~_O_. _ ....... 1( .. 653h) 3" Well:_' . 0 _ (.367h) Well Water Temp. (avg) I ·~:j l\' Weather Condo r=:-O' ' . ·,t . [Zverc.C\51 Redox Potential (Eh)1 l"\ \'3 TurbidityL-l. ~Q~_---.J Ext'l Amb. Temp. "c {prior sampling event)I '1t . 'I Time I o1o;;t., '. '1 Gal. Purged ..... 1t_10--.. __ '_.' ' .. I. Time Gal. Purged 1_<_, ___ I Conductance I O~4 'I pH ',"$),lk I Conductance Ia-.'_' _...:..----... Temp. ~C t:;:J~-:~~::~J Temp.oC Redox Potential Eh (mV) I, '1 \3 ,I Redox Potential Eh (m V) I . : ,·1 Turbidity (NTU) Turbidity (NTU) I I Time I , Gal. Purged ...... 1 ___ .-I: I Time I. Gal. Purged _I _____ _ Conductance pHI ____ --'1 Conductance '1 pH 1,-___ .....I Temp. e.C :J Temp.oC Redox Potential Eh (mV) 11-___ -' Redox Potential Eh (m V)l I.-___ -" Turbidity (NTU) Turbidity (NTU) White Mesa Mill field Datil Worksheet for Groundwater Mit!· Groundwater Discharge Permit Date; 03/22/2010 Rev. 6 • Groundwater Monitoring Quality Assurance Plan {OAP) Volume of Water Purged I~....;:t:-.·'-o_._o __ --,·I gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. Time to evacuate two casing volumes (2V) S/60 = I '10 :: I T == 2V/Q = I 0 I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated o Name of Certified Analytical Laboratory if Other Than Energy LabfL-_M_~_A...;... _____ ---,] Type of Sample VOCs Nutrients Heavy Metals An Other Non Radiologies Gross Alpha Other (specify) ~ ~Comment Sample Vol (indicate Sample Taken if other than as Y N specified below) , .,£;Zl. -C1 3x40 m1 ~J:m: .; '0 100 ml . -r 13 ' .. .-.,}: 0 -:. 1,000 mi . ... -0 " Sample 'volume Filtered y N Preservative Type Preservative Added Y N 0 _ tsa · BeL "!FI . 0 D ',' fiil ... H2S04 '::".:-0 ' ·"-.0 '.0 ·" '; ;.,.0 ":· HNO) '-.: ":", ",':, ':p ··.m . -.~ . . ". . ... If preservative IS used, speCIfy Type and Quantity of Preservative: ~.ii-l See instruction A~r;"e.a· ~" . .sl+e · 0.+ D'ltO. -r~t'\ner o..n<l ' &c..rt"1'n frese.,,} -for riy\.sG\+~ .. R itl'so.te b~CA" ~ 06"45 Y\AfV'\pea, !;O 6-"llo\'\~ D\.C ;.t\ Wt>-...te.r, So ~l/clls .sOOoP wC(hr-} t;\"A JOO 6-~Jlor1J of DJ: wa+e.r, . RJ/\ ~o..fe.. .enclea Gl."a ,S.o...-v} ple~ w<re. c:..O H ~+d "t 0701;. L:e+t-.s d-c ",t 070'1 . .. . :: .. ·:c:: .. :: ::"liDo not touch this cell (SheetName) White Mesa Mill FieJd Data Worksheet for GrQundwater ~ .-, Mill· Groundwater Discharge Permit ' j .Groundwater Monitoring Quality Assurance Plan lQA?} '. Date: 03/22/2010 Rev. 6 i ATTACHMENT) i OENISO ' j ! \VI-UTE ~{ESA URANIU1\1 ~nLL Attachment 1 .(~ Sce inSlnlc1ion 'l~.-.I .... tJ!l~~.!.~,.~~,.,...~, .. _l FIELD DATA \VORKSHEET FOR GROUND \VATER Description of Sampling Event: I y"'i"h. Qv.",M-l'r C-hlorJ-Op'Y\ ;;2.Ol( Location (well name):t-I....;:"f...;..W_4..:,.·_-Y.· ____________ ..J Sampler Name and initials: [~n"<:r Holl;'J~~ /rtt . Date and Time for Purgin~ H/I(;./,;"ol\ \\leU Purging Equip Used: [l[]pump or@] bailer Sampling Event I Q\AW'\-er.H .c..h \cr9\Qnn pH Buffer 7.0 L . ......:/:..;;;..~o __ ·_---I Specific Conductancc,-I _q:...Jq-..!.q ___ ~fflMHOS/ em Depth to Water Before Purgin~~ Conductance (avg) _I ,_. ()J __ ~~(,;;..' _: ._. ___ ---"1 and Sampling (if different) .... 1 ,,-.tv.:..;..~..;..:'A-:..-_____ ....a Well Pump (if other than Bennet) 1 ~.1 f,i]tAD<..\..s. Prevo Well Sampled in Sampling Event .... 1-"--/vt_~_tJ_._y ____ ---' pH Buffer 4.0 1.---"_4_..0 __ --'1 Well Dcpth(O.O 1 ft): I 11;;2..,00 Casing Volume (V) pH of Water (avg)r "-_'_,_h_b_' ---';'_-';"""'--;"--...;1 Well Water Temp. (avg) (. )~. \'-t · 'I Redox Potential (Eh)1 . Lf:l~' Turbidity_I q_.,_;t_._--... Weather Condo I Exel Amb. Temp. "c (prior sampling event) I ...... : b_c __ Gal. Purged It--' _. -.;..,.-.;..,.._ .. .al• : Tim~--l,,--:. _-~~ .. ...;JI • .I Gal. Purged .... 1 ..... : ____ --II ConduCtance Conductance I .. pH ~I _________ I Temp.oC Temp.oC 1_:_··......,;..-__ _ Redox Potential Eh (mV) 1-01 4£ ....... ,=-....... _----' Redox Potential Eh (m V) 110-; _' __ ..........,. I Turbidity (NTU) Turbidity (NTU) _. ----.- Time I GaL Purged .... I. ___ ....t· I Time 1_.' __ ...-.-;..' ' ... '1 GaL Purged ..... 1 ___ -'" Conductance I pH ,,-I __ ---'I Conductance pH t"-__ ......... _--' Temp. '(lC . I Temp. ':J>C J Redox Potential Eh (mV) I -, Redox Potential Eh (mV) """I ___ ..... Turbidity (NTU) Turbidity (NTU) Whrte Mesa MUI field Data Worksheet for Groundwater I' Mill· Groundwater Discharge Permit ,.-) -Groundwater Monitoring Quality Assurance Plan (OAP) Volume of Water Purged I L.., __ 0 ___ ---' gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = ",-I __ g~' ,;..;;;;.0 _" __ -" Time to evacuate two casing volumes (2V) T=2V/Q= f 0 I Number of casing volumes evacuated (if other than two) I, 0 If well evacuated to dryness, number of gallons evacuated 'D .1 Name of Certified Analytical Laboratory if Other Than Energy Lab~,-...... M.:...0~li_· _____ ---l. I Type ofSamp1e VOCs Nutrients Heavy Metals AU Other Non Radiologies Gross Alpha Other (specify) Sample Vol (indicate Sample Taken if other than as Y N specified below) ':: fjZl . ' D '. 3x40 ml .. ' ·til .;, '--, ,.: .... 0 :· 100 m.I .,::,.0 ':, .'"-',0 '· ' 250 ml : , , ,':"'." •. ·.BJ.', . -0 '";;;" Sample volume, '. Filtered Preservative Y N Type .... ' 0 ,flJ ,., I{CL ' " -0" , q ~'" HN03 . _ q. : , .-" [J No Preserv .. " .•.• ;, ',-" . ·'0, ,', .)q '. ES:: .. Date: 03/22/2010 Rev. 6 Preservative Added Y N . ,IXl'·· .,0 ',:I\':t __ : O · .. , ~"" '" . :'!p .~:~ (1 " ",0 , ':'0 ',' . ... ' . If preservative is used. ~peci:ty Type and Quantity of Preservative: ~Comment :;i~ See instruction Arrivca on site:.. lX.t l:Q,'l . !AnneI"', ~ ~f(';'" y<~+ 1-0 cotlecr5crJl1p je5 . Iv.rtlt:d ft.wt/'P ·ol\ -Let f\Af\ .to,.. ~ ·GII) mlfJ~(~. ~tvlft(S were. CDllt:t--.fcAl(t \~4S ~c;d(r t,.j£.\S : ,,-)c-cif, Le~ si+c to-PoYi __________ --'100 not touch this cell (ShcetNamc) White Mesa Mill F'ield Data Worksheet for Groundwater Date~ o31nnOlO RE!v. 6 Mill :Groundwater Discharge Permit lj Groundwater Monitoring Quality Assurance Plan (<lAP), ,', ..., f' ... j ATTACH~·"ENT I Attachment 1 t OENISO '-J:! \VHITE l\I.ESA URANIUl\1 l\ULL ~:\&, See insttllction ~'~~~¥.'!~f!!~~~.JJ FIELD DATA \VORKSHEET FOR GROUND 'VATER Description of Sampling Event: I 1.""11'\' Q\"",C+erGh \o('o~~r1Vf' '!:to 1.1 ] Sampler Name I T~~:tr " ;;;:m:;: -Location (well name)lTW~ -05 and initials:c~n; ~C.,~~nJd~:L/<._ .' J Date and Time for Purgin~ .lt /;5 /a.O)·j and Sampling (if different) I n / l.b/~Olj "J Wen Purging Equip Used: ~ pump o@ bailer Well Pump (ifother than Bennet) L~?~:ti~l~~-·:=:J . . Sampling Event f Q"'~rh~('U; c.b \orof'~rM Prev. Well Sampled in Sampling Event I :·..-,G~~I' •... pH Buffer 4.0 1-"'4.0 . '. "'J Speci.fic Conductance"-I:: ..... ~_4-:..q_:.: ______ · .. _· 'J.!MHOS! em Well Dcpth(O.Olft): I J~(j~cib:.. '1 Depth to Water Before Purginl~_3i1..~:;-;~:":J Casing Volwne (V) ;:: ::~~~l~m~:~!~:; Conductance (avg) .\5'6],':.. ",':.',,: ' .. ~I pH of Water (avg) 1 >';··G~"15 .~':··~·.:·:-~·:.':·· ":·~,I Well Water Temp. (avg) I· ·,)4 .od ill Redox Potential (Eh) ........ 11.~~........lI' Turbidityl .. : 557 .. ,".: I WeatherCond. l .p~r:f~dI~~dt..··· .' .• >"1 Time ('0:30 .:',. ,",': I GaL Purged I:'. ·:"(;:''...·<··.~:.I Conductance 1"LS,lD .····:'.~·; .. ·I pH l.:b ~·~5> .. '.1 Temp. ~C Redox Potential Eh (mY) I-.~'b 5 , ,.:. J Turbidity (NTU) Time II C~ .,:~.;'J GaL Purged I : 6..[( -. ,.; I Conductance f;':IS(J'" .. :~] pH [.k :.H:5Z·i:f'd Temp.oC L}4 ~'i \ ".". : I Redox Potential Eh (mV) ·o..::~.'· Turbidity (NTU) g bO .Extil Amb. Temp. "c (prior sampling event)[-S t.. 7,; I Time r--i.o3r:.~ .... ~ :'1 ' Gal. Purge~'1 77 . ;·'~:~}'/~::'·'I Conductance I·:>JSIO'···~. ;','J pH 1.6·45 ;;' «·1' Temp. ~C rl Y.Q , .. ' t Redox Potential Ell (mV) 1.·Y.4q.::: •.. :·,1 Turbidity (NTU) ,. 'Q''If::,:;:,!'''' "1 :'!o~~::·.'.·-·. Time I 1033 ::",,:··1' Gal. Purged I ·:'11 .. :::.':.d Conductance 115Q'5 c. :, J pH [t:'.·!!5:·-:>,J Temp.oC Redox Potential Eh (m V) .... 1 ...... '1q ...... 5 __ -..·' Turbidity (NTU) f56:J I White Mesa Mill Field Data Worksheet for Groundwater Mill· Groundwater Discharge Permit --.) " Groundwater Monitoring Quality Assurance Plan {QAP) Date: 03/22/2010 Rev. 6 " Volume of Water Purged 1i-4 .... 9..J-__ ~ gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm, S/60= L--:o..;;,.H __ -.i Time to evacuate two casing volumes (2V) T=2V/Q= [ 7.~D 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{ ..... _M .... : .. .-..V/)"_: _. _. ____ --.II Type of Sample Sample Vol (indicate Sample Taken if other than as Y N specified below) VOCs Nutrients Heavy Metals All Other Non Radiologies Gross Alpha '::1:1 .... : .. '0 1000ml .-...... .,. Other (specify) ~.:.~~';:~. ,',: .. ,' .. :. D.';: Sample volume • ' .... ";.': ¥' . ..:':- Filtered y N J-.. ~. . .. ' . ~. , , ... ; .::/~ ... ::~ li;'\I!l;;:. •• -' -. ~. .. 0-' .::. -• Preservative Type Pres erva t ive Added Y N •• ~! .. '" .0 -" If preservative is used .. specify Type and Quantity of Preservative: ~Comment i~ See instruction Af'r~"eA.on ~I;~~" "tl~;lJ. -ra..nn~r &A.l\d 6-lAcr-:f} rrf!!!s,en+ .tar pV\~e . Pu.r~e b~n a.+ 10~'i . p \A r~~ \A; ell .:tc. 0(" iA +0+"\ a\' q 1"1; fI ",tes: INo:tcr \.j(i.<j, J. ;s,£ol c rea.; "'; I ~"\ wh .te/l;"hHI C"'::" • f'cA.(~~f· alde.J 0.. t ID33. Ot:.p+J,·n, ""',C<.+cr WO-S, 57·4/, Le.B s.lfe. ;:t IO.3b 1+ rrivea on ~rt~ ~+ 0741 ~n~« t\nG\. G-cM'r,,, ?r~~~¥\t tc GCilec,t So.tt1r le,S _ D~rfh ~owt'+erwc\.s ~6 '15. :;G\M f'kS \-IJCt1!r ktlt.d ~\-0153, Let-t .s.itG-c.xt--Crl.55 .. '-_______ -..IIIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater ~ 2 of2 . capturx' COMPATIIHE Wlffl~t-:t.;ri:--tOIi(nONALlT~ Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) r---------------------------------------------------1 ~E~~3l!?~~ ATTACHMENT 1 WHITE MESA URANIUM MILL Attachment 1 [<_J See instruction FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I LTfC\ QVt,Artu-Ch /orlJ6oY\ 2.011 Re..sCt~ p/-<. Location (well name):II-I_v-'_4_-_a.5 _________ --' Sampler Name and initials: Ff-YlYI~r }.:}o 1 )/J~.j/TH Date and Time for PurgingJl-'_:t....;../_,_~_:;.._O_lJ__'__ ___ -J Well Purging Equip Used: [[]pump o@ bailer Sampling Event I Qv..~.:r"h:,-b G~\l>roforM pH Buffer 7.0 /.0 Specific ConductanceI-I _4_~_~ ___ ....... 1 ~MHOS/ cm Depth to Water Before Purgin~ S b-l-b Conductance (avg) lSf;$ and Sampling (if different) I J~~/.Gt01\ Well Pump (if other than Bennet) Prevo Well Sampled in Sampling Eventll-~_w_t..}_-_u, _____ _' pH Buffer 4.0 \..).15 Well Depth(O.Olft): I 12().oo Casing Volume (V) pH of Water (avg) 4" well:1 LlI· ~ ICo653h) 3" Well:...... _O __ --J. (.367h) Well Water Temp. (avg) 11L.\.8' Redox Potential (Eh) I ~8'~ Turbidity I 17 () g Weather Condo l ___ L __ ~I--_____ -......I . ..)v...n(\~ Time Gal. Purged ..... 1 ....;;~;..;;..{:; __ --I Conductance pH I b.7:2. Temp.oC Redox Potential Eh (mV) I 2BX Turbidity (NTU) Time 1 1Q.~1 Conductance Temp.oC 11SbC 1'14.[5 1 , 1 bO Gal. Purged I&....;:;..gg~_--J pH IG.73 Redox Potential Eh (m V) ..... 1 :l:Z> __ 9_---' Turbidity (NTU) If)95 White Mesa Mill Field Data Worksheet for Groundwater Ext'l Amb. Temp. O( (prior sampling event)I .... l1 b Time 1 1~3b Gal. Purged 1 ..... 77..:-4-__ --' Conductance 11'5'7 Temp. °C 1 I cot ·8 7 Redox Potential Eh (m V) ..... 1 2_8.....l3"'--_-J Turbidity (NTU) Time 1&....;1.;;...2..;;;;;..3 .;;...5 _--,1 Conductance 1 1558f 11700 Gal. Purged ..... 1 G}4~ __ --' pH I b.73 Temp.oC I ~Y·85 Redox Potential Eh (mV) ..... 1;2$_4 __ --' Turbidity (NTU) --1 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged! .... _G1----.;C1 ___ ---I Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = Lo-! ~l ' __ -.I gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q=! 115'1 ! 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 Labf,-./V_/'_/>t ___ ~ ___ ..... Sample Taken Sample Vol (indicate Filtered Preservati ve Preservati ve Type of Sample if other than as Added y N specified below) y N Type y VOCs ~ D 3x40 ml D ~ HCL BI Nutrients D D 100ml D D H2SO4 D Heavy Metals D D 250ml D D HN03 D All Other Non Radiologics D D 250ml D D No Preserv. D Gross Alpha D D 1,000 ml D D HN03 D Other (specify) D D Sample volume D D D If preservative is used, specify Type and Quantity of Preservative: Comment ~ See instruction A (1'; tJ~a ~I'\ ~;+e (}...+ ~ 2.:;2.,b. -rQ..l'\t\C/" ~Yl~ (T.A.rr;" pres~n+-+~r fU.r"~e..· ?\A~ e he<dD\1) ~+ ]:<';2.9~ P\A.('~~ wed' ~o(" fA, 1-o-t<1vl or 9 y\'\;nv..-te~. Wt;..+cr WCA.,S tJ.. \l~h1-Mdk~ w},u:}~ c.o)or~ t,r~ ended. o...-r 12.3B. Depth +0 wo.:r.:(' wa,s 57.g]. LG+t s,1-e. (}.:t )30t N D D D D D D 4('1; ue.! Or'-~)~e. 4" 13.:2.'-. -r:,"ttt;:, ~f\~ &Af(l1\ rre.sen+ tf> GO ne.q-s "'}VI pl~S O-e?+~ +" v::>~( \).)~ ~ (.. IS, .sd.rI\p1~ WGfc:. bo..:Je).. A.t )'3~O. Ldf-Sr1-c:-",J-)33~ L-________ ..... !Do not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2of2 . Mill • Groundwater Discharge Permit ) , "Groundwater Monitoring Quality Assurance Plan (QAP) Date: 03/22/2010 Rev. 6 J A TT ACHl\'1ENT 1 [CENJSO Al l \VHITE l\(ESA URANHJl\l i\ULL Attachment I Sec tnstmction ,~t>.~,~'t'..lli!'s ____ .. ~,"~ FIELD DATA \VORKSHEET FOR GROUND \V A TER Descriptio~ of Sampiing Event: [4--r-h QV\"-r4-e.r Ch i ot"o-torrYt J..D 11 Location (well name):I -rW4-0b ::::::a~~me [;;~~~_~J1,;lJ ;~M.""':n~~.~··~~] Date and Time for Purgin~ HI' SAD Ii ] and Sampling (if different) I iil lb!~OJ , Wen Purging Equip Used: IT!Jpump o@ bailer pH Buffer 7.0 Specific Conductancelt...,·_·· q..."l.Cf...L.1..r...-.._~...."IJ.tMHOS/ em Depth to Water Before Purgin~ 70 ,20 ,1 Conductance (avg) Wen Pump (if other than Bennet) Prevo Well Sampled in Sampling Event GW4-b5 . pH Buffer 4.0 Well Depth(O.Olft): I CO , SD . Casing Volume (V) pH of Water (avg) 4" \Vell:1 11.~~ .1<·653h) 3ft \VeU:_' .0 '. . _ (.367h) Well Water Temp. (avg) Redox Potential (Eh)1 4 ~ ~ . I TurbidityIJ,...Jl3..c..;;O;;.&..1_-& Weather Condo Time 111.5&" Gal. Purged I ~: .' . I Conductance (. ~3g '0 ] pH [b·.~· .] Temp. ""C iq~~!i " '1 Redox Potential Eh (mV) 1'41t\g ] Turbidity (NTU) I Time ] GaL Purged I ..... _~_...." Conductance [ 1.... ............ __ _ pH L.-f __ --a 1 Temp.oC Redox Potential Eh (mV) 1 ...... ___ _ Turbidity (NTU) L :~ White Mesa Min field Data Worksheet for Groundwater I Ext'l Amb. Temp. "c {prior sampling event}I .... G_o_~ Tune I' GaL Purged " Conductance [=:~: . pH , .. . .-.', Temp.oC 1:. -:] Redox Potential Eh (mV) &.-, ~_~-JI Turbidity (NTU) Time I · Gal. Purged I I-__ ............ --' Conductance pH 1-1 ___ .....I Temp.oC Redox Potential Eh (mV) 1-1 ___ --, Turbidity (NTU) Mill • Groundwater Discharge Permit ," ._) .. Groundwater Monitoring Quality Assurance Plan (CAP) Volume of Water Purged ,-C_Z_: '"'!i_'~;;... ___ ...I gaUon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. Time to evacuate two casing volumes (2V) S/60 = I . 11 . ] T = 2V/Q = 1 3.~'"i I Number of casing volumes evacuated (if other than two) Ifwell evacuated to dryness, number of gallons evacuated Name of Certified AnaJytical Laboratory if Other Than Energy Lab~I....~jt.fi,--. 0_~_'.;...;. .. ___ ~~.;.,.ll Type of Sample VOCs Nutrients Heavy Metals An Other Non Radiologies Gross Alpha Other (specify) Sample Vol (indicate Sample Taken jf other than as Filtered Y N specified below) Y .N Preservative Type Oate: 03/22/2010 Rev. 6 Preservative Added Y N If preservative is used., specify Type and Quantity of Preservative: [:.,~,. See instruction ~Comment ~ Atr~lJ~ OIISI1" .. ",t 11,51. :"~nu ;"n~ rr,,(("ir..pf'<!Sdlt ~r e;.1i.Pv.~,\<' b.~<Ot) ",f 1150. 0000.·00 ° P ... (~e~i.)el\ for "~M'nlA.fes .P",r~fa ~ell.dr~ "-1"ter h-.~ " a;~ ~1.>c6lor. P~r\\e etiJe4~t 00 H:S~. ~~+t ,~rte ~t "l~OL Ard ued. 0(\ Sf.t~. v"\t" 015" --';fV'l~r ana. ~r{ir) p,e5 c="t 1-0 .. GDJt:·~~.~,.,pi~~. C?~pt. h+ow",tu \.00.;' 'D.};,':).... ~<\rviple.!>wcr<=-k,'kda.1-OgO~ 0 •• 0 Le..t·\? sJ"t-< '(,)oJ Ogo., •.. .....'.. . . . . . .. ""-'-____________ ·IDo not touch this cell (SheetName) White Mesa Min field Data Worksheet for Groundwater ~ 2 of2 captur>f COMPATIOLE WITH/",--""$.·W-FU~CTlONAliTY Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) i.-·--·-----·-·-.--··.····-·······--·-········-····.··I .. ~~f~l?j_~ ATTACHMENT 1 WHITE MESA URANIUM MILL Attachment 1 b,.~ See instruction FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 1 '411"1 Qv..p. ,.+<.r G 1, JorJo r WI ?.J) J , R~W'\ p k. Location (well name):I ...... -r_w_y_-_O_b _________ --' Sampler Name and initials: 1 'o..nnGr Flo 11;a~/if-} Date and Time for Purgind ,~ fo/=tOI , and Sampling (if different) };2../ 7/~o n Well Purging Equip Used: [![]pump o@ bailer Well Pump (if other than Bennet) Sampling Event 1 Q",o..r+<.r~ Gh 1 o,..c:;rorM I jWY .. as Prevo Well Sampled in Sampling Event L...-_______ ---I pH Buffer 7.0 -t.0 pH Buffer 4.0 L\.() Specific Conductance .... I_4_9~ ___ ____'I ~MHOS/ cm Well Depth(O.Olft): ...... 1 C1_7_~_55 __ ----I Depth to Water Before Purgind 70.~O 4" well:1 17. b 1 1(·653h) 3" Well: 0 (.367h) '----_......I Casing Volume (V) Conductance (avg) pH of Water (avg) Well Water Temp. (avg) 1 13. ~D Redox Potential (Eh) I .2.~g Turbidity I 5~1 Weather Condo I t. ~\,.,\.t'\I'\~ '----~---------......I Time Conductance Temp.oC 1 3~t.15 1 13.&0 Gal. Purged L..o..1 -I-19Jt------I pH 1 '.50 Redox Potential Eh (mV) L.o. 1 _::t_g_tg __ ......1 Turbidity (NTU) 1 S3<1 Time Gal. Purged L.o.I ___ ----' Conductance pH ...... I ___ --' Temp.oC Redox Potential Eh (m V) L.o.1 ___ ----' Turbidity (NTU) White Mesa Mill Field DataWorksheet for Groundwater Ext'l Amb. Temp. °C (prior sampling event)1 -9 0 Time Gal. Purged 11-.-__ -......1 Conductance pH L-I __ ----I Temp.oC Redox Potential Eh (mV) L.o.I ___ -......I Turbidity (NTU) Time Gal. Purged L.o.I ___ ---' Conductance pH 1 ...... ___ ......1 Temp.oC Redox Potential Eh (mV) L.o.I ___ ----' Turbidity (NTU) l 'of2 I I· I MiII -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1-1 --.;..14...1..-___ ......1 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 1-1 _1_' __ -----' gallon(s) Time to evacuate two casing volumes (2V) T = 2V/Q = I 3,!l..1 I Number of casing volumes evacuated (if other than two) I l.07 If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Labfl-_;v_!J_~ _______ ...J Sample Taken Sample Vol (indicate Filtered Preservati ve Preservati ve Type of Sample if other than as Added y N specified below) y N Type y VOCs 'Ii 0 3x40 ml 0 ~ HCL ~ Nutrients 0 0 100ml 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 RN03 0 Other (specify) 0 0 Sample volume 0 0 0 If preservative is used, specify Type and Quantity of Preservative: Comment ~ See instruction Arn\Jea. On ~/~h~ (}..-r-tso'f. -Jo..nn~r otntA 6-r>.r(",'y/ 'Pf"e.Sen-r -:ro( p"'-('~<... ?v.."'~~ be<1"'1-) oJ-J3JI. P ~ c J.. Vol ell -for "'-+,,} .... l".f' \ tv).; ".J-G 1Mt1. '4S SGGontls, \0ofcr wr.5 M w-kj. P ~ctl. \,:ldt J.r~. pv.r~0 G1lde4 -d-13)<), Let} s;t~ .... -j-~ 1315 Pt!"(';\J'el, on ~;+G lA.1-13;>L\_ -r"""nnd ~r'l~ G-o.Cf';(\ plC::~'CJ'\,-r +t> 6c>11·eC,t SuvMpl~~. D-cpT~ +0 ~+G4 ~o.b 70. bl 5~f~vpll:.f, we,c, bo..;lt'lq ~t 1337. L-cR-S Lrc:. C\.-1-J33~ '--________ ....... IDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Grouhdwater N 0 0 0 0 0 0 2 of 2 Mil! -Groundwater DIscharge Permit Date: 03/22/2.010 Rev. 6 -Groundwater Monitoril'lg Quality Assurance Plan (QA:P} I .. ATTACH1\IENT 1 IOIN'SON ,~; \VHITE rHESA URANIUM MILL Attachment I ,,,,{fj Sec instructwn "~#i'f ~!!lIl~~~,~i FIELD DATA \VORKSHEET FOR GROUND \VATER De~cription of Sampling Event: 1\jT'h QU.ti\ctif Gh lor(2·fQ.m a..o 11 Sampler Name Location (well name):1 -rw 4 -C 7 and initials: Date and Time for Purgind.\.,,;t~, /;...,:;l;.;::,:,K;u/..::;.;;l.,;;;Q~n~ ___ -, Well Purging Equip Used: [!!]pump o@ bailer pH Buffer 7.0 ( ..... --.,;..7 ..... 0...;, .. __ --.1 Specific Conduc!ancer...l..;.Jqu443 ____ · ...... I~MHOSl em Depth to Water Before Purgin~ b~ ,0 ] . .I Conductance (avg) to..t _;....:)~b~::..;· :..1:3:.....;.... ___ ·_· . ....;..._-' and Sampling (if different) '-1 .... ill._~_q .... I .... ~_ol ..... l_· _"""'-_--..2 Well Pump (if other than Bennet) I &r~(\A+cs Prevo Well Sampled in Sampling Event 1 .... \'0'1-07 R pH Buffer 4.0 [ !:1 'O . We]] Depth(O.O 1ft): \..,l( 1::;..;~:..:b_.o:;.:;6~_--! Casing Volmne (V) pH of Water (avg) 4" WelLI :)3.9 1 IC653b.) 311 Well:;... __ ." .;;..0 _· __ ---'_ (.367h) Well Water Temp. (avg) [i~~~::5:, .. , .J Redox Potential (Eh)1 ~;;l, '. Turbidityl 20 q Ext" Amb. Temp. °C (prior sampling event) .... 1 _lv_--, Gal. Purged r....:1 S='$~" ~_:....., .. I Gal. Purged 1 ..... _______ ·· ...,I] Conductance [16i3, .. ', J pH I: 4 ·~c '1 Conductance I l... _. ---.;~_"-,I pHs..;...,1 __ ...... 1 Temp. ~C Temp.oC Redox Potential Eh (mV) I 32?-.. . I Redox Potential Eh (mV) ..... 1 ~ __ --I Turbidity (NTU) I Q.Q,l{ .... I Turbidity (NTU) I I Tilne Gal. Purged ..... f ___ ....J Time ·' GaL Purged I !o.-' • __ -..a] Conductance L............ __ --IJ pH ..... 1· ...... __ ....: C onductancel '-___ -"' pH ..... 1 __ .--.3. I Temp.oC I Temp. °c ..... I ___ -.-l Redox Potential Eh (mV) 1-' ___ .....tI Redox Potential Eh (m V) L.:.I. ___ -"' Turbidity (NTU) --:J Turbidity (NTU) White Mesa Mill Field Data Worksheet for Groundwater Mil! • Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (O,AP) Volume of Water Purged ..... 1 ......:1005.&;:5:;;;,.' ___ -JI gallon(s} Pumping Rate Calculation Flow Rate {Q)1 in gpm. Time to evacuate two casing volumes (2V) S/60 = ..... 1 __ i __ ~ __ ---' T:::=2V/Q -l b .i~ I Number of casing volumes ,evacuated (if other than two) I \,£a If well evacuated to dryness, number of gallons evacuated Iss Name of Certified AnaJytical Laboratory jf Other Than Energy Lab~s..._M_,/_4 ______ ...J.-1 Type ofSampJc Sample Vol (indicate Sample Taken if other than as Y N specified below) VOCs ,', &1:., ':'! q ~x40 m1 Nutrients ,~-., .0 :,'._ 10000 Heavy Metals All Other Non Radiologies Gross Alpha _.·~:.,':D'{ '. ,·.~·'·O··:·.;· 1,000 fit Other (specify) ", ,,: ED':'-:" ,." .. 6 ····;:·: Sa~plevolume ... -: -. Comment "-_______ --'-IDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater ,.) Filtered Y N Preservatjvc Type Preservative Added Y N ~ "',0 " i' 'm:, HCL " .. f$i) ~ -: ,.'; D •• , " . -.. ! ':,'. " I ..... ~::~;. , ·:,:'0 ,·:" .... flf ." . ,,'~ If preservative is used" specifY Type and Quantity of Preservative: .'-'1c~ See instruction 'BI , ,,', .. ',.'. Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) · A TT ACHIHENT t IOEN,so:-e ~Ji , \VHITE :MESA URANIUM f\ULL c.:..i MINES 'FIE.LD DATA \VORKSHEET FOR GROUND \V ATER '~~,~~~ Description of Sam piing Event: I Gi" Q\A,~rter ~hl()rrifvrdl Attachment 1 Sec instruction 'I Location (well name):I-I.,.....;.....;:yJ~:t·_-...::O:::.J7uR.;:....... _______ .... ·1 SampJer Name and initials: [;i.-mG • .J..Joil:~ ;or; Date and Time for Purgin~i ILilS/;2..0il and Sampling (if different) ~I AI:..;.' .:...:/ '+~ ______ :J....l Well Purging Equip Used:OOpump o@ bailer Well Pump (if other than Bennet) 1&(,lhl'\tA+b~" , I Prevo Well Sampled in Sampling Event I--rVJ 4 d l~' . pH Buffer 7.0 1-1 ,_i. -.;1 ...,;;.-.. ..;;.O_~ .. -J1 pH Buffer4,Q .4 :0 ' Specific Conductance I 'Itt,! I JlMHOS/ em Well Depth(O.Olft): .... I ·~~o;;.;..: ........... .....;..-...;.....;. .............. ·1 Depth to Water Before Purgin~.,:-'0 .. ' "~J Casing Volwne (V>, ,4Jt wen:Ef:o.'·' ..... , ·1(.653h) 3t1 Well: '0 , •. , ,(367h) .~""";".....I Conductance (avg) a.......-.. ,'_, .;...;4 ..;..,;:' b~" _~_' .J-.J pH of Water (avg) I '773 ' WeB Water Temp. (avg) I 1,;..' ;.......,_.'i.y..~..;...;..;...;.........;...J' I Redox Potential (Eh)Is...;3;......g....;;t3~~~' I Turbidityfl;"".: _0_' '. __ ...... ' I Weather Condo I .. ,:"'.:'." I ~_ ~:~t~:)_e~_'r~,_~~~~ __ ~' Exttl Amb. Temp. "c (prior sampling event}I ,". ,-I Time r6~S":': ".:,), Gal. Purged [180 , ',".>~ I Timer ,-_. ~...;.;..',' .. ;...;.;,.::,:;.....J: I GaL Purged I '--,_ .. .;....-....-.,.·..:.-··_:· ..... 1 Conductance ,--r'·~··. '~:-'~'--,',I pH 1.0-.1 ~~ .. I Tcmp.°'C Temp.oC I; >,; ,..'-.' ,"'. ; I Redox Potential Eh (m V) ~~ Redox Potential Eh (m V) !L...I: --..' ______ ----.41 Turbidity (NTU) I": _ 0 :;:;-' .. , Turbidity (NTU) I .,,' ._,' > 'I Time Gal. Purged """,' ....... : ______ ,.....1·1 GaL Purged L,..;I·,;.....·· """;" _____ ...J pH _[ _-" __ '-",1 Conductance I :, ,\ • --J pH &...1 ___ -.-. Temp.oC I, ... ·· . 'j Redox Potential Eh (m V) I.' . I Turbidity (NTU) Whlt~ Mesa Mill Fiefd Data Worksheet for Groundwater :1: 00 COMl'All!H.£ Mill • Groundwater Oi$charge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged '-1_2 .... : Q_c_~" ___ __ gaUon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = ...... 1 _ ... H __ ---' Time to evacuate two casing volumes (2V) T=2V/Q= [ b I Number of casing volumes evacuated (i f other than two) o If wen evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Ener!,,), Labf,-..;...j',--iv/~AII-_____ --' Type of Sample Sample Vol (indicate Sample Taken if other than as Y N specified below) VOCs ·.,:ijl 0 : .'. 3x40,ml Nutrients Heavy Metals ., 'q , :'~.: .', 0 ' 250 ml An Other Non Radiologies Gross Alpha Other (specify) :>;'~':::', r :.,' D', Sample volume , - .' > .}.. • Comnlent Filtered Y N Preservative Type Preservative Added Y N [;J,':"; ~::, liV' ,H2S04 · '.'~ .. : ':,~D :' . ........ -~: . ,'0 If preservative is used. specii)r Type and Quantity of Preservative: ~ See instruction 'Arr ''Je),. \;.1\ 5,:.\1!.()..~ Ob3S .l":u'\l1e.r G1I.t'\~ Go.rei" fre~er1+' +o,f""+.he.. R ;t\s,~te. R :1\!.0\+e. b~",,\ "'--\ 0"'-10 ?"''''p",{ 50 (,."1\".,-,, of A~;J. \!J"+U" 50 &,,11 en; :"0,,< p WAter lAna \00 &-cAlIon~ of PI wo.-kr. R':ASCA-te. er\deA.~l\a, sqMple,~ 'We"'~ c.olle..c+e.4 qt Db~g - Le.\1-S\1'-CA.f · 0105 '--_______ --"'Do not touch this cell (SheetNamc) White Mesa Mill Field Data Worksheet for Groundwater Mill • Groundwater Discharge Permit -) ~Groundwater Monitoring Quality Assurance plan (OAP) Date: 03/22/2010 Rev. 6 ATTACH~iENT 1 iOENISON'lAj : \VHITE !\IESA URANIUM MILL Attachment 1 ./11, Sec instnlction ·;t:~"M~~S . '$ ~~_.' J FIELD DATA 'VORKSHEET FOR GROUND 'VATER DescriptionofSamp1ingEvent: 14T}) Q\).(,\r+~ c.,hloro·~(rt\ ;toq Location (well name): ..... [ ~"T....;;.w_4~-O.:::...=g _______ __ Sampler Name and initials: I :funnlf H&.H ;·4~ hIt Date and Time for purgind t \/).5!~o i I and Sampling (if different) Wen Purging Equip Used:~pump o@ bailer Well Pump (if other than Bennet) Prev. Well Sampled in Sampling Event l-rw 4 -0 g f\ ] pH Buffer 4.0 Specific ConductanceJ q'i9 . IIlMHOS/ em Well Depth(O.Ol ft.): I 125.00 Depth to Water Before Purgin~ (;,(;·.55 Casing Volume (V) 4" well:! 3~. if. ··1(.653h) 3ft WeU:_: O· (.367h) Conductance (avg) _I .... 5r..1.o1 .... '1 .... f _____ _ pH of Water (avg) Well Water Temp. (avg) tl~.ii=:J Turbidityr..-I 3-..b;:;;..... _----...1 Weather Condo I"",,_G_\~_(;\_(_·;...' _____ ...0--___ 1 Ext'l Amb. Temp. °C (prior sampling event)I ...... ·I ...... c_· -...I Time I· OiOb ' : I Gal. Purged 1,,-.0...;;:0:;;.-·;...-: _~·I Conductance 3 ~O'l 1 pH I b .g~ . '·1 Temp. ~C [](j i J J Redox Potential Eh (mV) [ ;l.3b .J Turbidity (NTU) 1<3 b,S · Time I 01 0K Gal. Purged """I ....::..1 ....1..7 __ ....1 Conductance Temp.oC Redox Potential Eh (mV) J 2>0 Turbidity (NTU) ~b.O White Mesa Mill FjeJd Data Worksheet for Groundwater Time 1'010/ I GaL Purged 166.,· Conductance I ~D5 pH I (;.g~ Temp.oC I ,14 ·~\ Redox Potential Eh (m V) I 43 \ : .. =:J Turbidity (NTU) I ~1 . o· I ··1 I Time I· 070§~.~n~ '~:':I Ga1. Purged { '--~,;;;,.;;g:..-.. _----' Conductance r~Iig,~·nnn.n f pH I b.9CZ Temp. °C D~.:rf:=J: Redox Potential Eh (mV) I ;1.::1.7 Turbidity (NTU) A lof2 capturx' (~MI'ATIBH WITH~'O~'ri7-fulfcnoNA~ITV . Mit!-Groundwater Discharge Permit . ~~) • Groundwater Monitoring Quality Assurance Plan (QAP) Date: 03/22/2010 Rev. 6 Volume ofWaler Purged I L-.....;~~~g~, ___ ~ gaUon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. Time to evacuate two casing volumes (2V) S/60 ~ &...1_1.;..::.11 ___ ...... T = 2V/Q = I c;.Ci3 I Number of casing volumes evacuated (if other than two) I If well evacuated to dryness, number of gallons evacuated NunlC of Certified Analytical Laboratory if Other Than Energy Lab{L...· -.,;,...N .....:/f..;;...\ _______ ..-.J Type of Sample VOCs Nutrients Heavy Metals All Other Non Radiolog-ics Gross Alpha Other (specify) rCornment Sample Vol (indicate Sample Taken if other than as Y N specified below) '--_______ ---.l)Do not touch this cell (SheetName) Whjte Mesa Mill Field Data Worksheet for Groundwater Filtered Y N Preservative Type Preservative Added Y N ·';0 . ~'.f$l ", HCL . ":'$' ····-0 ,[l~:": 0 , /': /' ,0 '·,:·· .. ,,; 0 ," No Ptcserv. 1"'0 -":~'O _' , ,0 ,> <=:,'0 ' -HN03 .. >: ."·"ii:" . do. , ':, .~:t;J '. >.' w ,~ .. ".' ,-'," ,O ':!.flJ ' If preservative Is used. specify Type and Quantity of Prescnativc: ~:,~ See instruction Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) r--------------------:---------OJ ATTACHMENT 1 i OENISO,})j j I WHITE MESA URANIUM MILL Attachment 1 [~ See instruction ! MI!"ES . -J FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I Lrn; Qv...&-rh:r Con} (),...6"F()('"V"'\ :;2..01l R-es"l"'1pk Location (well name):I ...... _-r_w_4_-_0_~ ________ ---' Sampler Name and initials: I~nrlu jJ6J1"Jo.~/-rJ+ Date and Time for Purgin~L-_l2._/_G_/_~_O_'_\ ___ ---' and Sampling (if different) 1 ...... 'L1_/_7_/._.2_C_/1 ____ ........I Well Purging Equip Used:~pump o@ bailer Sampling Event I Q",,,,rter\.j G"h 1orcrton"\ pH Buffer 7.0 I,D Specific Conductance ...... 1 _".;...~..:...1 ___ ...... I ~MHOS/ cm Depth to Water Before Purgind bb .7b Conductance (avg) Well Pump (if other than Bennet) Prev. Well Sampled in Sampling Event i -rW4-0llR pH Buffer 4.0 t...J.O Well Depth(O.Olft): I l~~.OcJ Casing Volume (V) pH of Water (avg) 4" well:I ~~,06 IC.653h) 3" Well:L-. ___.0 __ ....... (.367h) 7,OQ Well Water Temp. (avg) I lq.~S Redox Potential (Eh) ...... 1 _\ 5_Cf __ ...... Turbidity ~I )_1 Cf""""--_---' Weather Condo Time I 08:l( Gal. Purged ..... 1 _5....;;:5~_ ...... Conductance I s ~ 90 Temp.oC Redox Potential Eh (m V) ..... 1 ..:.,.I{;.;;...' __ ...... Turbidity (NTU) I?.O.1 Time I Og30 Gal. Purged ..... 1 ,_1 __ -.....1 Conductance Temp.oC 1 3385 1 14.Xb Redox Potential Eh (mV) I ISg Turbidity (NTU) White Mesa Mill Field Data Worksheeffor Groundwater pH I 7.01 Ext'l Amb. Temp. DC (prior sampling event)l -l00 Time 108';).'1 Gal. Purged ~I _U __ ---' Conductance I "'S.3 9D Temp.oC Redox Potential Eh (mV) ..... 1 __ 1_t:_'-.....I Turbidity (NTU) I \ \9 Time 1 an I Gal. Purged ..... 1 ~~8'~_---, Conductance 1 3~ pH ..... 17_,1..;:;.0 __ --' Temp. °C IJq .% Redox Potential Eh (mV) ~I _1.;5_' __ ...... Turbidity (NTU) 1 of2 - Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged .... 1 .....:<6~rl....-___ ...... Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 1-.1 ---..,;l ]~_--I gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= I 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 Lab~L..·_JV_/_Ir _______ -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 ~ D 3x40 ml D I]J HCL ;8 Nutrients D D 100ml D D H2SO4 D Heavy Metals D D 250ml D D RN03 D All Other Non Radiologics D D 250ml D D No Preserv. D Gross Alpha D D 1,000 ml D D RN03 D Other (specify) D D Sample volume D D D If preservative is used, specify Type and Quantity of Preservative: Comment ~ See instruction A rrl vc.~ Of" S ,i'{' ~ 0 ~ ll. ~"V\G('" Wl~ (r~((','rt ff'e.~~ ,pO( f\Ar6~' 'Pv..rt<-bejM o.t o~;t3. P W"~.o. we 1\ -ror-.... tot",j of fl JVI j nv.-t <.S. I.:)J.~,.. w~~ JVI oAr kj.. f V\r~e -ended, .,t 0 8':!. L Deft... to \.U 0(1-.:..-t>..f\-er fur~<,!.<las 17. q I . L e. f+-s;-h. 0.. t-08'3.5 ft(r;ve~ em f,;tt ~+ Il.4~ .-rIl.f\1\u· ~YlA G-fA((,'1\ f('<.5~rr}-+0 c()ll~d-.5~mf't!.S . .s(A)V\p\c~ b(J>.J(.~ "', \2.L\~. DC.~h +0 \J-)""to'" wa.S '7.\S. L~-t-t Sl+~ o-f ,2EO L..-________ ....JIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N D D D D D D 2 of 2 MiII-Groundwater Discharge Permit ."') Date: 03/22/2010 Rev. 6 -Groundwater Monitoring Quality Assurance plan (OAP} J J A TT ACHl\'fENT 1 !,OENISO:! .Ji ~ \VHITE l\lESAURANIUM 1\tULL Attachment 1 ~~'~~"" ... r.'"",",~~~ FIELD DATA \VORKSHEET FOR GROUND 'VATER :«ii Sec instruction Description of Sampling Event: [l..\'~ Q'v\£;\r¥er Gh\orof or(V) ;2.01\ Sampler Name Location (well name):l lw~_ O~ R and initials: 1'~}'V'lef H 0 I\,'J t4.:J /TH I Date and Time for Purgin~ 1\ /15(:;1..01 I and Sampling (if different) [N/n ] Well Purging Equip Used: (]Ijpump o@ bailer Well Pump (if other than Bennet) J Prev. Well Sampled in Sampling Event I Tw4 -2.S I I pH Buffer 4.0 ..... [ :...,.;...L,\_,.O--.,;...,. ____ ' I Specific Conductance 1.-1 _1t....'\.:....;4'--__ ---sIIlMHOS/ em Well Depth(O.Olft): .... 1_· _0_, __ ---' Depth to Water Before Purgin~....__.D ___ . .....,_I Casing Volume (V) 4" Weil:l 0 =]~;~;~~ 311 Well:: .0 Conductance (avg) :\ .0 pH of Water (avg) I " "'1 ,S~. . I Well Water Temp. (avg) I 'i '\ D TurbidityL,..1 .....;D:::;..·_· _ ....... ;..al Weather cond'l '-_G_le_{).._ . .._( _________ ·_· .... 1 Ext'J Amb. Temp. °C (prior sampling event)-.I 0_-_~_ ..... Time (OG3~" Gal. Purged _II;,..;"S_D~ ... _--..I Conductance j ~O . -I Temp. ~C QlAn ----Ii Redox Potential Eh (mV) C~:::::-] Turbidity (NTU) I -0 I - Time Ga]. Purged ,\-____ .......-.-1 . - Conductance pH ..... 1 __ ...:..-~ Temp.oC Redox Potential Eh (mY) _1.. ____ _ Turbidity (NTU) White Mesa Mill Field Data Worksheet for Groundwater Time 1_~:· __ o.....l·1 GaL Purged _1 _______ ' Conductance pH I,--",-~-",,·I Temp.oC .... 1· ___ ......,1 Redox Potential Eh (m V) 11.-.' _......;......._ .... ·1 T urhid ity (NTU) I'· . I Time Gal. Purged 11.-___ · ..... 1 Conductance I . .J pHIa-__ ,--" Temp.oC [ Redox Potential Eh (m V) Ia--__ ---' Turbidity (NTU) Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitortng Quality Assurance Plan (CAP) Volume of Water Purged I..-C_:J.._O_\O ___ ~=...I] gaUon(s) Pumping Rate Calculation Flow Rate (Q), in gptn. Time to evacuate two casing volumes (2V) S/60 = I __ ~_( _____ --' T=2V/Q = I c I Number of casing volumes evacuated (i f other than two) If well evacuated to dryness~ number of gallons evacuated Name of Certified Analytical Laboratory jfOther Than Energy Lab!,--/V...:.:;;..::..J4.~ _____ --I Sample Taken Sample Vol (indicate Type of Sample j f other than as y N specified below) VOCs ~,:.' · ... D 3x40 rol Nutrients :. ijI ,.:;:: D .... 100 m1 Heavy Metals ,0 ":,0 ' .. 250ml '" All Other Non Radiologies ~O "0 '. 250ml Gross Alpha 0 '" 0 : 1,000 ml Other (specify) .. IJ' .. '; S,lmple volwne "CL ". ,- Ch\or;a( Comnlcnt Filtered Preservative Preservative Added Y N Type y N '0 ~. HCL iil .. Q . : 0 ·· .. · • '.11, .,: . .-.~ .. H2SO4 .'1'.8 ... ~·:.,O . '.:0 , ""':0 , ,".' HN03 '0 ' .-,::0 '. '. ., .. .'. .:0 '" .~ D : , No Preserv. D · :0 ':0 ':. ":,0 ':'-' ", .' " '0 "'fil: .. ' .. RN03 [J '·0 ':"" ,,';' .. 0 ' .. If preservative is used. sped£y Type and Quantity of Preservative: ; .i.::i See instruction "if ... [XI . '. Arr-;\Jed on St.+~ ~t OblO ,I':'I1/ler tA'1tl &v...rrtYl p,..<!s,el\+ +or r;.,..so...-re . R:".s~re.. be~~fl At 06.rS ,Pv..MPc.c.\ SO G-I-\lton5 c~ Itc.hl tNc,}er l SO G-~lIons of soC\p w~+cr 6./Ht lOb G-~/Jotl$ . or Dr wo.:fer, R,nso .. +c. -en~e~ G\ntt .slAM pieS We1~ Gol/ec+eJ. C\ r OG3lf. ~e.+-t s J··h~· 4+- obLiO .. a........ _______ -...IIDo not touch this cell (SheetName) WhIte Mesa Mill Fjeld Data Worksheet for Groundwater A 2of2 <;apturx' COMPA TlBt.E WfTH/,,-Ut.:~.FUNCTlON"lITY Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) . /"_ .. _-_ ... __ ._-_._-------_._-_ .. _-, ATTACHMENT 1 I OENISONI) ~ i WHITE MESA URANIUM MILL Attachment 1 L~ See instruction L!AIf\!E~~ __ ._~. _J FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 1 '1t'h Q~~ife.,~ Gh' Of'OfO("M ~O \l Location (well name ): ..... I-r_'W_l.\.:.... .. ~O...;:~=---1\ _______ ....J Sampler Name and initials: I-r;Ylnef" ~l() 11 ,'~~.:1/lJ+ ~/It Well Pump (if other than Bennet) Prevo Well Sampled in Sampling Event I ..... _/'",_1)/_'1+,_, _____ ----' pH Buffer 7.0 Specific Conductance ..... I_9...;..'\_q __ ----II ~MHOS/ cm Depth to Water Before Purgind~_O __ ----' Conductance (avg) ..... 1 _S_,_S ______ ..... pH Buffer 4.0 1.1.0 Well Depth(O.Olft): ll.....-_O ___ ....J Casing Volume (V) 4" Well:~_D __ -tI (.653h) 3" Well:. 0 . (.367h) pH of Water (avg) ..... 1 _b_, Of....;S=--____ ----I Well Water Temp. (avg) q.~g:: Redox Potential (Eh) I ..... _'"}_O_' _----' Turbidity ..... I_1_._0 __ ..... Weather Condo Time ..... 1 O_7....;l:....,:'1_-....J Gal. Purged 1.-' '---.;8'"--0_-----' Conductance Temp.oC Redox Potential Eh (m V) ..... 1 _'.) __ 0_' _---' Turbidity (NTU) 'S.O Time Gal. Purged ..... 1 ___ ---' Conductance ] pH ..... 1 ___ --' Temp.oC Redox Potential Eh (mV) 1 ..... ___ ----' Turbidity (NTU) White Mesa Mill Field Data Worksheet for Groundwater Ext'l Amb. Temp. O( (prior sampling event)1 =-54-1 -lDc) Time Gal. Purged 1"'--__ ---1 Conductance pH L..-I __ ---I Temp.oC Redox Potential Eh (mV) ..... 1 ___ ----I Turbidity (NTU) Time Gal. Purged ..... 1 ___ ----' Conductance pH ..... I ___ ..-I Temp.oC Redox Potential Eh (m V) 1&....-___ ..... Turbidity (NTU) .' lof2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (OAP) V olume of Water Purged .... 1 _~_O_"O ___ --I Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 1-.1 __ U __ --' gallon(s) Time to evacuate two casing volumes (2V) T = 2V/Q = 1 0 I Number of casing volumes evacuated (if other than two) o IT well evacuated to dryness, number of gallons evacuated N arne of Certified Analytical Laboratory if Other Than Energy Lab~L.--::;..~..;../_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 l1 D 3x40 ml D m HCL 1l:I D Nutrients OJ-D 100ml D D H2SO4 D D Heavy Metals D D 250 ml D D HN03 D D All Other Non Radiologics D D 250ml D D No Preserv. D D Gross Alpha D D 1,000 ml D D HN03 D D Other (specify) 01, D Sample volume D D D D If preservative is used, specify Type and Quantity of Preservative: Comment ~ See instruction A~rhJe~ C\'\ s;te 0..+ 0 700. -r~Y'IY\er MtA. G-o-.r .. ;() p'("e~e."'-t-+or fi(l~tA..+(._ R;T\s.oJ e. b ~"'n ",i-07()~. P"'l'lpeJ. So G-... \161'S 4,G; J ',r)/A:hr I 50 G-... J 1 {} fI.5 .s 00\):> WlA,~C.f, \ 0 0 CroJ 'OY'l.5 Dr D I \N(A1-er. R~ (I..5o--t(. -e,(\d.ett (}'r'ltA -StA.M P }e,...s LVere.. c..o/lec;/;J 0\1-012'· L~w ~I'-r~ o...t-07~~ L--________ ...JIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundw'ater 2of2 Mill· Groundwater Discharge Permit .. ) Groundwater Monitoring Quality Assurance Plan (QAP) Date: 03/22/2010 Rev. 6 . , ATTACHMENT I .:OENlson ..4A i \VHITE iHESA URANIUM l\ULL Attachment J See iustru~tion ~L_~!.~~_:~.! FIELD DATA WORKSHEET FOR GROUND \VATER Description ofSampJing Event: I l..{th ~(J..('+e,r c,h foro.ron~ ~ll Location (well name): ...... I ·--...;,., ...;,.w...;..,4....,:.· _ .... ....:;O;...q~ _______ --' Sampler Name and initials: I ~nne(" ·~c iLJo.;i)n-I- Date and Time for Purgin~ \ \ /lS !.::t.O 11 ===t and Sampling (if different) I '\/16/;2..0J I Well Purging Equip Used:f]Upump o@ bailer Well Pump (if other than Bennet) c&C:~J;E£~' _ _ _ J Sampling Event 1&"",('rec8 c..h 1 o;-o'~rtn Prevo Well Sampled in Sampling Event I "1\'\)1.\-OIS pH Buffer 7.0 /,0 pH Buffer 4.0 I 40 Specific Conductance .... 1 _9 ..... q.L.,Jqt....-__ -..I1 flMHOSI cm Wen Depth(O.Olft): I )~O-OO Depth to Water Before PurgiD~ 53, 8§' Casing VoJwne (V) 4't well:1 42>, \] l(0653h) 3" Well: __ O _____ .(,367h) Conductance (avg) 11o-_2:...;:3:;;;,:3;::;..0.=:;' ~ ____ -a pH of Water (avg) Well Water Temp. (avg) [t "(l{!'C] Redox Potential (Eh)li.o..~=..fj~\ _---' TurbiditylL.,;,./.;;..2:;:...'3 __ .... G'ev..( Weather Condo I' ------------------------~ Time I 0150 Gal. Purged I ;'1' '1 Conductance .2.33'4 pH ["~~?i _u_:,] Temp. °C QS:L¥CJ' Redox Potential Eh (mV) 1 '3.~'i -~1 Turbidity (NTU) Gal. Purged .... 1 _Cf'f""'-'-_---' Time [illa-~:~-.·.] Conductance C::::~~? pH r~ :SQ:_.ucJ Temp.~·C I )~ .SO Redox Potential Eh (m V) ls.-j~.;,...A';";'~_--J Turbidity CNTU) White Mesa Min Field Data Worksheet for Groundwater Ext'l Amb. Temp. "c (prior sampling event)s-,I ~I c_ .... Gal. Purged 11-._8ft~_ ..... Conduclrulce I ~33Y pH I, b.50 Temp.oC Turbidity (NTU) Time 10'1£":> Conductance Temp.oC [ li:50::J I 1~\ J Gal. Purged f..........:..;fI;.;:;D ___ 1 1;[333 I ~,rg ·50-::·] pH [~:'~~:::~u.:J Redox Potential Eh (m V) I '3 t( D Turbidity (NTU) M~II • Groundwater Discharge permit -') Groundwater Monitoring Quality Assurance Plan (OAP) Volume ofWaler Purged 1&....-"i~I D.:::..,., ___ -' Pumping Rate Calculation Date: 03/22/2010 Rev. 6 gallon(s) Flow Rate (Q), in gpm. Time to evacuate two casing volumes (2V) Si6n:; I ll. T=2V/Q=1 '1 .. '65 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&..; . ......:....fo_' I;...:A _____ -..I Type ofSnmpJc Sample Vol (indicate Sample Taken if other than as Y N specified below) VOCs Ii f11, 0 . 3x40 ml Nutrients Heavy Metals o '.: .. ~ ",.0 250 ml All Other Non Radiologies r,:r : ,; .:,tIL' " 250 mI Gross Alpha 0 :··: :"0 :' 1 OOOml . . " .,',' , Other (specify) ~it ' ,<: -.. tr . Samplevolume , ',,0 ~Comment Filtered Y N Preservative Type Preservative Added Y N ':',,0 " .. " .:. I)' . HCL . ... " . ;. ~ . ':: '0 , ·'ELl : . .'"m :.··· .,:.'0 HN03 No Preserv. HN03 (fpreservative is used. specify Type and Quantity of Preservative: See instruction A((';vc!~ un .5tt~ 0(\ Oi3Q . ~I\n~r ~I\). 6-~rr ;/1 fn~.s.ent.-\-Or flAr.t)e > P v.("do(. b~G\y\ "to, l1'3 . P .... r~e4 weI ~ .for th, +.:,+.,..\ tk, Ie M :~..rc> ,w .. 1u h.J.' "'-,5. 1i~1,t .\ :.s=;ar. ? <Art) c: ""JeJ ... t 0753 Depth -k, ~o+cr . ~a.~ .73,51. Lt!ff s ,+,-p.;t 0757 A!,(';l,)e~ {y(\ ~\'h'!.f.\.t o7()g ··-r:'\f\n~r Go'(\(J\ (;-().rr l·" pre.scn'r--to L~i1e<.:1 $4h1pJe-..s . r:J-epth +0 \I.jo.ter Wtl..1 S4.\~ .s~pl~ were. b",:\e.(.\ ~(r 0113 ~ le\T ~i+C. ~:t' 071' L-.. __ ~ ____ ........IIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet 'for Groundwater Mill-Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) 1 :~:~~~j)~J WHITE ~!~;~=I~~ MILL Attachment 1 ~A See instruction L_,_~~ __ l FIELD DATA WORKSHEET FO~ GROUND WATER Description of Sampling Event: I g I &i Q \AGA.;:fc:r G~ lore> orW'l :;2...01 \ RGS~mp j~ Location (well name ):II.-T_W_Y_-O-";~~ _______ ---' Sampler Name and initials: h!nner-Rolluj~7ff1 Date and Time for Purgin~ 12./ bj ~OJ \ and Sampling (if different) )~/7jQ-Oll Well Purging Equip Used:ll!l Ipump or@] bailer Well Pump (if other than Bennet) I &rlAn l-f6.s , I-rW L/ ... 08 Prevo Well Sampled in Sampling Event 1.-_______ ---1 pH Buffer 7.0 7.0 pH Buffer 4.0 Y.O Specific ConductanceI.-I ti_q_~':"'-__ ----II !!MHOS/ cm Well Depth(O.Olft): 11;2.0.00 Depth to Water Before Purgind SL\. \ () Casing Volume (V) 4" well:1 '-4~D3 I (.653h) 3" Well: () (.367h) '-----~ Conductance (avg) pH of Water (avg) £-73 Well Water Temp. (avg) I )4.15 Redox Potential (Eh) 1...-1 ~_=:7_'_----I TurbiditYI1...-5_~~g~_ ..... Weather Condo 1.-1_~ __ V1"';;;~=-________ ---I Ext'l Amb. Temp. °C (prior sampling event)l-qo Time Oq 1<6 I Gal. Purged II-.--b_' __ ...... Time Gal. Purged ..... 1 1---.;...7 __ ...... Conductance 1.:2. y 11 Conductance I !2.4 1 g Temp.oC I Itt.\'={ Temp.oC 1\4,15 Redox Potential Eh (mV) I 2: 11 Redox Potential Eh (m V) 1...-1 ;L._l_l _~ Turbidity (NTU) Turbidity (NTU) Time 10112O Gal. Purged ..... 1 .;:::.g ,w.,8 __ ....J Time I 09:;t. \ Gal. Purged , ..... '1 ...... '1'---_---' Conductance !lt9 ;;Ll Conductance I ~;;L:;) w 1 ;2.~~ Temp.oC I J tJ .Ie Temp. °C 1 , 4 .1' I Redox Potential Eh (m V) ..... 1 _9i_'_'_---I Redox Potential Eh (m V) ..... 1 :2_7_) _----' Turbidity (NTU) Turbidity (NTU) 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 L... _q.....;.4...:....-__ ----II · gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = ...... 1 _1_' __ --' Time to evacuate two casing volumes (2V) T=2V/Q= 1 /.3~ ) 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 _______ --1 Sample Taken Sample Vol (indicate Filtered Preservati ve Preservati ve Type of Sample if other than as Added y N specified below) Y N Type y VOCs ~ 0 3x40 ml 0 ~ HCL ~ Nutrients 0 0 100ml 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 Preservati ve: Comment ~ See instruction A rf";\led Oh 5'~~ ~ o CfD7 . ..yitnfl~r tA.nJ G-lA.rrl~ prec5e:n+-,fo; p v.r(je. Pu.(j~ ~lAh o..q- Oq ~~.. P'-A.("~~ \.e~'l ~r (J... +0+0..1 ~ ~ M/r)4'~5_ WO\.t-cr ~O\.~ Mvvrkj-\" f'lA~ ervkA 6;.t 01~\. DerJ-l" -10 woJ-o-~ IJ>o"s {Lj.51. L~61:f~0\.+ (YffJ.!S. Arn'\J~~ Dn. .s/J.c, Ov+ );tS\, -r;nnt.r fJo.l\,J.. &(11.((;'" pr'"e(;erd-+0 con-cd-.5tA.Mpl-e-s, D "'F t],.. +0 "".,j--w-vJo...s S I..I.ID . -S...rVIy> 10 IN Gr"~ b • .,If e.J ~t )255. L. <.4-s /h.. fA 1-}:;US1 '---________ ..... IDo 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} .; ," 1 A TT ACHl\fENT 1 i·OENISO.,l)JJ ~ 'VHITE r\fESA URANIUl\Il\ULL :;t~'--4M~~!--~,.... ..... J FIELD DATA \VORKSHEET FOR GROUND 'VATER Attachment 1 :, . ...:ciA See instruction D~scription of Sampling Event: I Ll'Tt:"t Q \Ao..(,t-er cJ.·doto,fc("M Location (weB name):I~T..;.....;;.·w..;:;..4....a..--__ \O~ __________ --.t Sampter Nanle and initials: O:;~er . Hol~"b.~t!ll: I ~ =~ Date and Time for Purgin~ .1\(jS/:J..Ot \ Well Purging Equip Used: (]Upump o@ bailer Sampling Event I Qv..o..r+~<"\.j C,h lorv·~C)rjV\ pH Buffer 7.0 ['-I ........... O __ ~_ ·1 Specific ConductanccL-' ...L11 ...... q..:...-_~_·.....II.I~MIJOS/ em Depth to Water Before Pm'gin~ 55., b : I Conductance (avg) I. ........... '.' ;.:.;;'\ ~;...;' ;:...:q ..... ·1 __ ---..._----' and Sampling (if different) I n/I"/~Oi\ :1 Well Pump (if other than Bennet) Prevo Well Sampled in Sampling Event I .... _1_W_4_.-_' &' _______ ....1 pH Buffer 4.0 I ,,"\.0 . Well Depth(O.Olft): I ' "1. '0 .. :==1 Casing Volume (V) 4U well:~. (.653h) 3" Wen:~(.367h) pH of Water (avg) 1 __ ' _. ~,"'-. 4.;.::111·3~~ _____ ...... , I Well Water Temp. (avg) I .\S .61 Redox Potential (Eh)l· '-1(.,~' Turbidityl 9-:.0" j " ., Weather Condo I ?~(t\~,C.\0Y-:~f • Time f .. 13~\ 1 Gal. Purged I 4~', '. '1 Conductance lli,q] ...• :1 pH 1'·~3 Temp.oC Redox Potential Eh (m V) [~g,~~::::,:'] Turbidity (NTU) I ;lQ. \ I TiJne Gal. Purged .... L ___ -! Conductance ",-I . ___ _ pH"-I ___ ...... Temp.oC ~I : ___ _ Redox Potential Eh (mV) I ____ ..... Turbidity (NTU) White Mesa Mill field Data Worksheet for Groundwater I Ext'l Amb. Temp. °C (prior sampling event)1 "j.' .' Time I " . 'I Gal. Purged ["----_____ .....I' I Conductance ..... I_.-.-~-..I pHIt---__ ~ Temp.oC _1" ___ _ Redox Potential Eh (mY) a.-I ___ ..... Turbidity (NTIJ) I Time """1._;· __ ----' Gal. Purged .... 1 ~~_ . ...d' I Conductance ______ ~·1 pH~1 ____ -.....I .. ) Temp.oC Redox Potentia1 Eh (m V) 11-__ -.11 Turbidity (NTU) I ] Mlil ~ Groundwater Discharge Permit .--) Oate: 03/22/2010 Rev. 6 .,.-Groundwater Monitoring Quality Assurance Plan (QAP} ~ Volume of Water Purged 1,-_t1;:...; '~_--_____ ..... gatlon(s} Pumping Rate Calculation Flow Rate (Q)~ in gpm. Sf60 = IL..-_1;;..;;....' 1 __ ---' Time to evacuate two casing volumes (2V) T=2V/Q= I-b ::?' I Number of casing volumes evacuated (if other than two) I i.:;1. \ If wel1 evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Labl .... · __ . M_/l_'-fl_'ri ________ ----.11 Type of Sample S I Tak Sample Vol (indicate amp e en if other than as Y N spec] fled below) VOCs Nutrients Heavy Metals All Other Non Radiologies Gross Alpha i': ··:r:f, .. :.: :":.,·,O.-,:·::-r-'I',OOOnll . Other (specify) Filtered Y N -,'o.: . :' ID '. "':" < Iil' " Preservative Type Preservative Added Y N If preservative is used. specifY Type and Quantity of Preservatiye: ~. ;:Comment L~ See instruction Air'Neet 01'\ ~i+e.. 6.:t, Y31:5.'-U:n,,~r~n~-&01.(6" f.€>e~+ ~r f~('t:,e, ?v.~e. _b~-" ,,~ i~\S . . r;.,.r~..:a ;,:.ell ~. ",-. td.:.l or;.::. l>1itJlA-t.:s,: L\S5a:.o.,d.s. HA;~eA well a(~ VOIXtM I.iJO.& deaf . Pu.<~~ e()Aed ~1 . 13~s . Le~ s;t~ i\t-r3>~l. .' AfCi'Jeo. of\ ~;'Te ~1-()g~K ~nne(' o..nd. (]-",,((1(\ presen';--.. ~ ... f ,5o..Mph"j eu~nt. Depth +0 \.VcA-1-C( \,.)~ :5f>. 1~. .-S0(Yl P l-es vVe(~ btA de~ o.} O~ Lt:.2,.. L~1--5 j"h: ta.} O~Y5 . L...-_______ -aIDo not touch this cell (SheetName) White Mesa Mill . Field Data Worksheet for Groundwater A 2of2 capturx' COM PATllIlE WITH /'--~"t;"ri:--fUN{TlON"lIn-. IVtm • Groundwater Discharge permit '"~) Groundwater Monitoring Quality Assurance Plan (OAP) ,~ ~~ Date; 03/22/2010 Rev. 6 I . A TT ACHl\fENT 1. I fOENISO .,· 'VHITE .MESA URANIU~'ll\n.LL :~~~..!A~~~,~ FIELD DATA \VORKSHEET FOR GROUND 'VATER Attachment 1 ':.,£~ $el': instruction Description of Sampling Event: I L\Th Q~.ter c:.h 101'0£ f ro , 2D il l Sampler Name Location (well name):1 -rW4· ... 1 i. . =t and initials: .... 1 -r:\.....;....;.;~\n~{t.;..;;;f!....;...r~Hc)~J~};J;.;.;~~~~,Ir.....:' _'1-=---__ .-.-..] Dale and Time for Purgin~, DI i.6/.a..O n Well Purging Equip Used:f]1Jpump o@ bailer Sampling Event I Q~w+er\~ CnlorMOrtn pH Buffer 7.0 I "".0 . J Specific Conductance ...... 1 _' 4......,QI...J.' __ ' _. _....JIf.1MHos/ em Depth to Water Before Purgin~ ~1"~() '1 and Sampling (if different) 11l 1l4/.9.Dl\ " WeB Pump (if other than Bennet) Prev. Well Sampled in Sampling Event I. 1" IN Ii .;t \ pH Buffer 4.0 ; ·1 Well Dcpth(O.O 1 ft): I JOo.oo I ;:: ::::E::~,q ~·~J:~~~~~ Casing Volume (V) Conductance (avg) 1_, ..... , --_: ·..:..,j4 ...... --;;.:;;..7"'--____ ._·1 pH of Water (avg) f .-'.57 ... · Well Water Temp. (avg) Redox Potential (Eh)I_,H .... :·Y..a.,.J_·_ .......... Turbidityl ..... , ...... 15 __ · __ -" I Weather Condo 1,;..1_.6 ...... -.• _l _~lAw_·_(_, ....:-.. __ --.;..;.--._.......;.......0.-.... 1 Ext'l Amb. Temp. "C (prior sampling event)I.-b 0 . ~ I Gal. Purged &0.;;1-.;;;,;5.5;;;;;.-__ : ... 1. Temp. 'OC Redox Potential Eh (mV) J.4Ql '., Turbidity (NTU) I ,,\s.o :-:1 Timet '-....... '. ~~_ ....... ) Gal. Purged ,-I ___ ooMJ Conductance f ..... =_, _--=--............ ] pH ,-I ___ ..... J Temp. PC Redox Potential Eh (mV) 1-1 ___ ..... Turbidity (NTU) White Mesa Mill field Data Worksheet for Groundwater _ Time I· '-'·1 GaL Purged I ' .' I Conductance I ': pHI .. I Temp. ·!:tC L Redox Potential Eh (mV) I' . :,' _ --' . I Turbidity (NTU) 1-'-,: . ':,.1 Time I 1,.;.,' ........ ___ -;.".a.J Gal. Purged _I . ______ .....1.1 Conductance pH &....t __ ---.II Temp,oC Redox Potential Eh (m V) t,-;~ __ ........ T l.irbidity (NTU) "Mill -Groundwater Discharge Permit ) Groundwater Monitoring Quality Assurance Plan (QAP) Date: 03{22/2010 Rev. 6 Volume of Water Purged l_.....:: =6_5 ______ J ...... gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = l,,--.-;..l ~( __ -...I Time to evacuate two casing volumes (2V) T=2V/Q= r.-'6.~_~-:=J Nwnber of casing volumes evacuated (if other than two) If weB evacuated to dryness, number of gallons evacuated [J?il:~: .:~-:] 155 Name of Certified Analytical Laboratory if Other Than Energy Labf_"_. _N_~ i_:A_, _____ " --.JI' I Type of Sample VOCs Nutrients Heavy Metals All Other Non Radiologies Gross Alpha Other (specify) :'~Comment SampJe Vol (indicate Sample Taken if other than as Y N sped·tied below) -.:.:.E(J :', '. tr "3x40 ml ..• :'·~i>; .;"~ .... Sample volume Filtered Y N .. , :-._;,' .~ .... -'", ./:r:;l ....... ." ~ .... " : .. : ..... ~ ~":''; :::~ Preservative Type Preservative Added Y N . ;Q '~'. _. :·.:0 :.· ... ·· If preservative is used, specifY Type and Quantity of Preservative: ~dJ See instruction Afr1\leAon ~I'\£. "'} IEOq. "'-~ne: MIA G-o.f('i, presUl7" +/" f"',I3e. 'i'U.('~f b~rl .. + 151;<, P .... (~e:d ""ell *0<" iJ,. t .. t,,-' '*'.:5 M·I\ut-C$.. wo..4e(~ cleo-r.?\Ar~ecl. ~el\ d(~. P .. r~ etldeJ t,} lS 1/, t-e\t .srte. ~i-1~2.6 A((";"el\ 01\ ~\+e, ~.:t-ot:t57 -rOt\(\n~(' Mt\ (T"'\.((-;,, presel\'r fe c.oHe-ct .$p.Mpie.s . uep+h +0 wv:.ter WC!.) 5~. ~5 'stAJv1p\Q vJ<:('~ bt\;\ca l1\ T O'F1~. L~.(t siic ~t oqY5 , "-"' _________ . JDo not touch this cell (SheetName) White Mesa Mill Field Data Works.heet for Groundwater 2of2 capturx' COMF>AniHEWIUt/dr • .,;/zr-·FuNOIONAUh Mit! • Groundwater Disr,harge Permit _.\ / Date: 03/22/2010 Rev, 6 .Groundwater Monitoring Quality Assurance Plan (OA!» " .• 1 ATTACHMENT 1 ~OENISO,})~4 i: \VHITE ~'lESA URANIUl\'Il\-IILL J~ MINES . i FIELD DATA WORKSHEET FOR GROUND 'VATER ' .. ~~.J.."'~~~ Description of Sampling Event: I w.""fl\ Gh""o...c-toer c"h \ ()CcRof m ;lD 1 , Location (well name): ..... 1 T---.;..W_4 ..... ·_ ....... \~;;....;;...--..;. ______ .... Sampler Name and initials: Attachment I .,Y See inslmction Date and Ti me for Purgin~ ll / i '-'\ 1:2..0' , and Sampling (if different) f 11,I1s:)2/l// ] Wen Purging Equip Used: []f]pump o@ bailer Well Pump (if other than Bennet) f JJ: rw;a·~~; ~':J Sampling Event lQv-.o.e-kr l'-l c.. ~ \ oro-tQfM I Prev. Well Sampled in Sampling Event law L.\ -'" 03 pH Buffer 7.0 Specific Conductance ..... 1 _"J ..... 9'"""'''...s..-__ ..... 1 p.MHOS! em Depth to Water Before Purgin~ 3'1 ,'1 l Conductance (avg) Well Water Temp. (avg) l i37sg ::~ 1 Weather Cond. I;' r'l . .' . 1 . _ ~<A.r+lj Glova6 . Time l 'l~O?>; : I Gal. Purged I' 55 . Conductance I ::;-~:?~TI pH rC;;~~R:~·~·.-] Tenlp.9C )4 ~9 .-1 ~ Redox Potential Eh (m V) 5' ~ Turbidity (NTU) r ,.0 .' I $ ~. Time I lR;O ~ GaL Purged I '-_11-11t-.··_---' Conductance I ~bg ·O J " Temp.oC [ 19 · 54 s Redox PotentialEh (mV) [-·gl9 .. ,·] Turbidity (NTU) :4 . 't White Mesa Mill field Data Worksheet for Groundwater pH Buffer 4.0 I lJ ·D WeB Depth(O.Olft): ,"}O\ .S{) Casing Volume (V) pH of Water (avg) b.qg ·. I Ext" Amb. Temp. °C (prior sampling event)1 \0 · be Time 11~O t.t . I GaL Purged [be. I Conductance I :i~7.3 I pH I G'19 I Temp.oC r:]~,-'g:::] 'W'hj~:: Redox Potential Eh (mV) [g'K5.:::::]! Turbidity (NTU) I ~-!.J . I Time li ~O ' I Gal. Purged I &f( I Conductance I :IS~'2 I pH l 'b "~9 I Temp.oC ii Ii . ~ I Redox Potential Eh (m V) ~:=l ~iq ~ lOoI. •• I1_ Turbidity (NTU) r 3 ~'~:c.-:·· .. 1 ] A 10f2 .' .. capturx' COMPATIBLE WITH/,,(_1#'6~·~-n.lIiCTIONA!.ITY MiIr -Groundwater Discharge Permit '-') ,Groundwater Monitoring Quality Assurance Plan {ClAP} Date: 03/22/2010 Rev. 6 Volume ofWaler Purged L...[--6$ ...... f5-'--__ -l gallan(s) Pumping Rate Calculation Flow Rate (Q)~ in gpm. S/60 = 1-001 _H_' __ --' Time to evacuate two casing volumes (2V) T = 2V IQ = I 1" '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 Labfr.......:;.N~/~t...;..>..· ________ ---' Type of Sample SIT k Sample Vol (indicate amp e a en if other than as Y N speci fled below) VOCs ,"J~r .,. El ,~: 3x40 ml Nutrients Heavy Metals All Other Non Radiologies Gross Alpha Other (specify) -::; m." " .. ti"',~, ~ample volume Comment Filtered Y N Preservative Type Preservative Added Y N ,':',L1 ':",' ":($' HGL ',' 0 '" -,,: ISJ,:',' H2SO4 ''0 0 , ,',0 :,': JJ:.:.~" . 'D ... .' No Preserv_ .'0 ' G1 /' ~- .' ". -. ',·0 ,' :,-,.,tg If preservative is used. specify Type and Quantity of Preservative: , ~ \!~ See instruction A~r; \lea. 0/\ S 1+ e ",t H53, -r~ nt'e.r Mtl, cto..rr: 1\ p .. d.c:.tI+ +Or p\Ar~e '. R...~ e:. b~1o.tl 01. t 115 g 'PI.Mtrd. well .for 0.. +otc.\ o.r ~ 1Y\11\\}..:t6. Wlil.i~( l.Oo.S GkO,L P ~r~e enJeJ 0. t \:lOb . \:) e pth .-to l.O<A.1-d Q.. -\tee pW'~e u)v-.!> i1 1.'3> i . Le.-t1-S +c cAt-12..D 8' i <S"''''''P It or 0 12. (), i2 y &t 1'1-P fl:/ ~r /)1' eSeVII' .fJ.r .setMfli, ~ D (tJ 'It.... ~ {ttl e7'-kv 9. 91 , ' '---________ ----1100 not touch this cell (SheetNnme) White Mesa Mill FIeld Data Work~heet for Groundwater • Mill " Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (O,AP) I:A ATTACHl'vIENT 1 j t)ENISO~J.' I \VHITE l\IESA URANIUl\Il\HLL Attachment 1 ' .. "~,ii/ Sec instruction ·'lJ MINES ; FIELD DATA WORKSHEET FOR GROUND 'VATER ~.NiU~~w:'::'~~....l .. ~ .. ~a.J....I Description of Sampling Event: [~~ Q\A~('+e.(' Ghlorof;?rM ~oil Location (well name):&...I....;T:...;'W...;:..4....;.....-=13=---__ ~ _____ ...II Sampler Name and initials: I-r-"",,,er H6ihJr.l-%1/1 H Date and T j me for Purgin~ i \ 11:1 Z')...o 1 \ and Sampling (if different) I 1/ /15/211/1 Well Purging Equip Used: I ijl-Ipump o@ bailer Well Pump (if other than Bennet) I G-rl.A(\a·+o~ Prevo Well Sampled in Sampling Event 1--1"1·.>'4-I::t. pH Buffer 7.0 ...... 1 ____ 7r...;.,x,o __ ----I1 pH Buffer 4.0 ( 4 .0 Specific Conductance,-I _4""'-lj.:...j~ __ ~I~,MHOS/ em Well Depth(O.Olft): I )0:2 .50 Depth to Water Before Purgin~:O=W Casing Volume (V) 411 well:I .3b.8b I <.653h) 3" Well: .... _ ~c>_, _____ (.367h) Conductance (avg) pH ofWuter (avg)f L... -=b~,g.::.,..iqL--_____ --"1 Well Water Temp. (avg) 114 -b1 Redox Potential (Eh)IL..·t1...:;:L.:.z..·y.s....·_---.2 TurbiditylL-.....:..'1 ..... 3-----' W cather Condo I· 1) .. . . \ _. rlA • .t\j ,G \ov..a 2' Time t2.5b Gal. Purged I . qy , . Conductance pH r -~~,~j.:::·.:·'] Temp. ·~C Redox Potential Eh (m V) [ Y: bj ' J Turbidity (NTU) I _ (t9 ,I Time Gal. Purged ..... ' _"";""'_-11 Conductance pHI ...... ___ _ Temp.oC Redox Potential Eh (m V) _I ___ .-I Turbidity (NTU) White Mesa Mill Extl , Amb. Temp. "c (prior sampling event) I b " Time Gal. Purged L-L ___ · : ..... 1 Conductance ,-I _. __ ""'--' pH 1.-.1 __ --', Temp.oC Redox Potential Eh (mV) I 1,.;.-.:.... __ --1 Turbidity (NTU) I ,I Time I GaL Purged I!... ___ ...& Conductance '1 pH .... ' ___ -' Temp.oC Redox Potentia) Eh (m V) L-I ___ -.JI Turbidity (NTU) ] , I Field Data Worksheet for Groundwater A 10f2 , capturx' COMPATJSlE WITH../'-:"i~,ro-FUNCTION"tITY Mill· Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 • Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1'--4 ..... ::Y~,< ___ -..I gallon(s) Pumping Rate Calculation Flow Rate (Q)~ in gpm. S/60 = ''''-...... 11'---_---' Time to evacuate two casing volumes (2V) T=2VlQ --[b .70 I Number of casing volumes evacuated (if other than two) u ·~ 1'\ ] If well evacuated to dryness, number of gallons evacuated J Name of Certified Analytical Laboratory if Other Than Energy Labl ..... ......;~_'1"'-A ________ -.lI1 Type of Sample SIT k Sample Vol (indicate amp e a en if other than as Y N spcci'ficd below) VOCs :",: ISS! . ,,0 ' ,-3x40 mt Nutrients .. iil .. ,'. ,,'D .,: 100m} Heavy Metals All Other Non Radiologies Gross Alpha . '.'-O . ' .. ' '.} .' 'r::l :".; 1 000 inl ' :,:, ' .. '. , .. , ,. ",~ ) Other ( specify) Sam:i>le volume . Filtered Y N Preservative Type 'Preservative Added Y N , 0 ,' " .'.I~.': HCL ,,' .' '-P '-.' .. p;n ...... 0 , ,: ~ . 0 : .. ' ,"'[;1"";. HN03' .'. "'~. ,,' ': ~;.' c ; .. ~. ~ r;J .' ,fEI ~ .. ' .. ' .:' ;-.. ' <;: " ." . .':_" ... If preservative is used. specify Type and Quantity of Prescnative: s L~i See instruction ~Comment ",-_______ ......... 1 Do not touch this cell (SheetName) White Mesa Mill Field Data Worbheet for Groundwater l\llil! -Groundwater Discharge Permit ,oJ Oate: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (OAP) 1 " 1 ATTACHMENT t j OENISO,}')A J i \VHITE 1\iIESA URANIUM MILL Attachment I ·~i MINIS ': FIELD DATA \\rORKSHEET FOR GROUND \V A TER .i....r~~~~_~~~~;..J..J Description of Sampling Event: 1 4~ Qv.Ct(:}~r Ch Jor~o(t"'\ ~oll Location (well name):l..I·--.;..1 VJ..:-..-~..:..-...:I....I'j _______ --:-_ .... Samp1er Name and initials: Date and Time for Purgln~t-.... h_l ..... l tj .. /..-.~_o_p ____ ...... and Sampling (if different) Well Purging Equip Used: I fi Ipump or@] bailer Well Pump (if other than Bennet) --,r$J See instnlction . I Sampling Event I Qv"CA(A"u b c..h I orcAor ~ Prevo Well Sampled in Sampling Event '-ol_fv.)_y_, _~_1'3_'-""';'_--';"--I pH Buffer 7,0 pH Buffer 4.0 y ·o Specific Conductance ..... 1 _Q.;..;Q"",,1_' _____ ....II~MHOS/ em Well Depth(O.Olft): I '\3.0D , Depth to Water Before Purgin~ ~7.15 Casing Volwne (V) 4" Well:~~~~:(.653h) 3" Wen:' 0 .. ' :(.367h) . Conductance (avg) .... f .;..;t,...;;;.\.....;.~_..;..·. ___ ~··.-.JI pH of Water (avg) Well Water Temp. (avg) I ·ttl .Ob :J WeatherCond. I f<>AbC'o~1 Redox Potential (Eh)! 3~1 . Turbidityr.-I ~_' . =-' .i.f,.:..' . _~ Time I t33~" I Gal. .Purged _Is_" __ '" ... 1. Conductance [,'>~iJ~:$',:~(:J pH 1_8 ........ 0 ...... 1_-..01• Temp. QC f l4 ,oC:.' '1 Redox Potential Eh (mV) ~[j ...... g ...... i __ -" Turbidity (NTU) Time f · Gal. Purged .... 1 _____ ...... 1 Conductance pH .... 1 __ ~ ...... ·I Temp.oC Redox Potential Eh (mV) _I ___ ..... Turbidity (NTU) White Mesa Mill field Oata Worksheet for Groundwater Extll Amb. Temp. "c {prior sampling event)I&.-.1 ..... t._: __ Time GaL Purged 1 .... ___ ...... Conductance L--_-:;...;.-II pH I'-----.;..~--'·:I Temp.oC I Redox Potential Eh (mV)1 "-_-";~....I Turbidity (NTU) Time I .... Gal. Purged I .... ' ___ '....,'1 Conductance pH '1...-.. __ ....--1 Temp.oC Redox Potential Eh (mV) 1&.-. ___ _ Turbidity (NTU) ~ 1 of2 .capturx· COMPATiBlE Wli.H~I .. t,.:.·t%::----i'lJHCTI"NAUTY .MiII -Groundwater Discharge Permit . ) Groundwater Monitoring Quality Assurance Plan {QAP) " . Date: 03/22/2010 Rev. 6 Volume of Water Purged 11...---=5:0..," .:::..5~ __ ....I gallon{s) Pumping Rate Calculation Flow Rate (Q), in gpm. Time to evacuate two casing volumes (2V) S/60 == IL---,~:.;:...J ___ ..... T ~ 2VlQ ~ I · b 'j I Number of casing volumes evacuated (if other than two) LJq5 If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Ener!::.l)' Lab~_ .... M __ '1. ...... '1\_. __ ~ __ --' Type of SampJe VOCs Nutrients Heavy Metals All Other Non Radiologic.s Gross Alpha Other (specify) ~Comment Sample Vol (indicate Sample Taken if other than as Y N specified below) L_. ______ --IIDo not touch this cell (SheetName) White-Mesa Milt Fiefd Data Worksheet for Groundwater Filtered Y N Preservative Type Preservative Added Y N ;.'.O:;;·;·:~W .'· H2S04 , fiSJ '-" .~ •. ~ E1 ... , .... :>t(· If preservative is used~ specifY Typt! and Quantity 0 f Preservative: ~ See instruction Mill: Groundwater Discharge Permit -~) • Groundwater Monitoring Quality Assurance Plan (QAP) Date: 03/22/2010 Rev, 6 ATTACHMENT 1 Attachment I I OENISO,})AJ : \VHITE l\'fESA URANIUAI !\tHLL q:lI Sc!e instruction '.'~~ .... ".MI'~~~""',",",",J FIELD DATA WORKSHEET FOR GROUND \VATER Description of Sampling Event: I L.I'fh G\,\Ar+ec Gh \oroB(tY\ ~o \I Sampler Name Location (weB name):1 "W !j ·~).5 MW -:J.k and initials: I ~r'\n ct'" No I Jlid~;1 ;',{+ ] Date and Time for Purgin~\i/lb /;2.01) and Sampling (if different) ,-"LM~V/T:..... ______ --' Well Purging Equip Used: [§[]pump o@ bailer -WeB Pump (if other than Bennet) I c.:::.ct\h"~c\AS Sampling Event I ()lu,v..(" t~rl.;:. Gh lor-of;, i n' ] Prevo Well Sampled in Sampling Evenl 1 }JI.vJ~?:V.. 1"wlj -/1 pH Buffer 7.0 1 .0 '1 pH Buffer 4.0 Specific Conductance I q9~ fJ.lMHOS/cm Well Depth(O.Olft): I i~-SC> . Depth to Water Before Purgin~ 67 · ~o ::: I Casing Volume (V) 411 well:1 3~.31 1<.653h) 311 Well: 0 (.367h) '---__ ---I Conductance (avg) ...... 1 -=3._5 ..... :l~"'-____ ..... , I pH of Water (avg) Well Water Temp. (avg) ~ .. ~:~u-J Redox Potential (Eh) [~Ll3:'.· . ] TurbidityI-I ...;;0 ;,..-' __ -' Weather Condo IL... ___ -..:....::...;. _______ ·...,JI _SV\(\~~_ . Ext'l Amb. Temp. °C (prior sampling event) I 3', Time I 09;;2..1 I GaL Purged IL-__ ---' Time I GaL Purged \-1' _~_-' Conductance [.. 5.s .. : 5.,?~." ...•.. -..... , 7 '"'' ""'] _ ~ .. !" ~.~ .. _ pH i. ~.~l~L __ ~ -,) Conduc~mce pHIL... __ __ Temp. ·~C I ) b. 6;;1 Temp.oC I Redox Potential Eh (m V) L-~9:3 ] Redox Potential Eh (mY) '''-___ · ..... 1 Turbidity (NTU) o ' Turbidity (NTU) f t Time Gal. Purged I-l: ___ --' Time GaL Purged I Conductance pH ,-I ________ ..... J Conductance I ] pH I Temp. ""c Temp.oC ( ) Redox Potential Eh (mV) I Redox Potential Eh (mV) t-[ ___ ~ Turbidity (NTU) Turbidity (NTU) L-__ ~ __ ~ __ ~~~~ ____ ~ White Mesa Mill fjeld Data Worksheet for Groundwater Mill -'Groundwater Discharge Permit to,,) • 'Groundwater Monitoring Quality Assurance Plan {QAP) ., Date: 03/22/2010 Rev. 6 Volume of Water Purged 10-1 ~o ____ ~~] gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. S/60:=: I l D. g . ' Time to evacuate two casing volumes (2V) T=2V/Q ~ I 0 I Number of casing volumes evacuated (if other than two) 6 If well evacuated to dryness, number of gallons evacuated '" I Name of Certified Analytical Laboratory if Other Than Energy Labf,-_A/,...:;'1I __ ~ _________ .... Sa.mple Vol (indicate Sanlple Taken if other than as Type ofSamp)c Y N specj·fied below) VOCs Nutrients Heavy Metals All Other Non Radiologies Gross Alpha Other (specify) ,. ~Comment '---_______ -..IIDo not touch this cell (SheetNamc) White Mesa Mill Field Data Worksheet for Groundwater Filtered Y N Preservative Type Preservative Added Y N If preservatJ\'c is used. specify Type and Quantity of Preserva ti ve : ~ See instruction Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) ATTACHMENT 1 - WHITE MESA URANIUM MILL ,_ ... _---:-._--_. .-----.-----------~ 10.1 EN'SOJ)~~I L_~IN~_~ . .----l FIELD DATA WORKSHEET FOR GROUND WATER Attachment 1 b< __ J See instruction Description of Sampling Event: 1 Lffh (;:)v..l;\.r+er L-h \OI"'O\fbrrVl ;2.011 1<~s~fVlpl", Location (well name): .... 1 _/'A._W_-_~_~ ________ ____' Sampler Name and initials: l-rAn n~r JJCl11;4~fr~ Date and Time for PurgingJ '2./5/~61) and Sampling (if different) N'/,4 '-----------------~ Well Purging Equip Used:~pump o@ bailer Well Pump (if other than Bennet) Prevo Well Sampled in Sampling Event I .... N_I_A-______ ...... pH Buffer 7.0 pH Buffer 4.0 y.(') Specific Conductance 1 ~~1 I ~MHOS/ cm L...---.;...-=:-:(;------i-=---...... Well Depth(O.Olft): 1 1~2 ·50 Depth to Water Before Purgin~ bL\.S5 4" well:I 'S1.~t.1 1(·653h) 3" Well: 0 (.367h) "----_ ..... Casing Volume (V) Conductance (avg) pH of Water (avg) L-C_"_o-.,;;;8_7 ____ ----' Well Water Temp. (avg) 1 \'3.l6:3 Redox Potential (Eh)1 ;2...'15 Turbidity ..... 1 _1.0 __ ____' Weather Condo Ext'l Ambo Temp. O( (prior sampling event)l ..> 1 b Time 1 1~:;2...~ Gal. Purged .... 1 ___ --" Time Gal. Purged ..... 1 ___ ..... Conductance pH 1 £.87 Conductance pH Lo.-1 __ ----' Te~p. °C Temp.oC Redox Potential Eh (m V) I ~q 5 Redox Potential Eh (m V) .... 1 ___ ---' Turbidity (NTU) \.b Turbidity (NTU) Time Gal. Purged .... 1 ___ ---' Time Gal. Purged .... 1 ___ ---' Conductance pH IL....-__ ____' Conductance pH ..... I ___ ..... Temp.oC Temp.oC Redox Potential Eh (mV) .... 1 ___ ---' Redox Potential Eh (m V) IL--___ ..... Turbidity (NTU) Turbidity (NTU) White Mesa Mill Field Data Worksheet for Groundwater lof2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of.Water Purged ..... 1 __ D ___ ____ Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = I '::;t.~ 0 gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= I 6 I Number of casing volumes evacuated (if other than two) o If well evacuated to dryness, number of gallons evacuated D Name of Certified Analytical Laboratory if Other Than Energy Lab~L-_;:%_I'A. _______ ...J Sample Taken Sample Vol (indicate Filtered Preservative Preservati ve Type of Sample if other than as y N specified below) VOCs 1:1 0 3x40 ml Nutrients D D 100ml Heavy Metals 0 D 250ml All Other Non Radiologics D D 250ml Gross Alpha D 0 1,000 ml Other (specify) D D Sample volume Comment Ard\J<d. ot'\. ~;+v oJ l3:2.b .-r~t'\"er o-nJ.. &o.((IYl ?,..e~T\} +0 S"'t"\p'G5 ~c:.r<"'" co\led-e;! ~+ Y336. Wo-.+e, ~ cJ~('. '--________ ...... IDo not touch this cell (SheetName) White Mesa Mill .' Field Data Worksheet for Groundwater ' Added y N Type y 0 ~ HCL ~ D 0 H2SO4 D D D HN03 D D D No Preserv. D D D HN03 D D 0 D If preservative is used, specify Type and Quantity of Preservative: ~ See instruction GO\\e..~+ S~Mples, Le..-A-$,+e ~+-).33~ N D D D D D D 2 of 2 Mill -Groundwater Discharge Permit :.-.... ) ~ Groundwater Monitoring Quality Assurance Plan (OAP) .. Date: 03/22/2010 Rev. 6 ! . ., ATTACH!\1ENT 1 ~ OENISO.J:j · ',1 \VHITE :MESA URANIUM 1\fILL Attachment 1 .. ;;~ s· . ,,,,,,t;"'~ ee tnstnlct10n .. \u/ MIN!S I FIELD DATA WORKSHEET FOR GROUND 'VATER !1ht"",~~_~~,.,.....1 Description of Sampling Event: I 4 "ih Qv.£N:tG(. G h lo(of6f M ~o It ' Location (well name):"""I_·tw~1j.....a'_-~I'~· '~ _______ .....1 Sampler Name and initials: I ''-;nn~r Hol/.Jth-1/Ilt ·· Date and Time for Purgin~ .. ' ,',/i51 ~O,' ·1 and Sampling (if different) Well Purging Equip Used: [f!]pump o@ bailer pH Buffer 7.0 . 7,O ~;'··· Specific Conductance I .', 4j1' ,. ','. ., . .1 f.1MHOS/ em Depth to Water Before Purgind:,I:tJ _.: .1 Conductance (avg) "':'. '3QiD'" Well Pump (if other than Bennet) P W lIS I d · S l' E I·-r w. '4-;2.,', .... , ··.· .. 1 rev. e amp e In amp mg vent 1-_.-.;.;;..' ___ ..;.;..... __ --1_ pH Buffer 4.0 I t..f .. o ·· Well Depth(O.Olft): J:. iYl.·,oo Casing Vohune (V) 4" wellt 5~~(,.I(.653h) 3" Well: ~'C .· z '" : (.367h) pH of Water (avg) L..1··t:~-~·:5~· 4~' .;....:;.;.:....-._ .. _._. _...;......s Wen Water Temp. (avg) IJt4 .-g~' ,:,."'.1 ' Redox Potentia) (Eh) I ~-i1 c \ . • .: I Turbidityl11; : 0 .--' .. ··1 Ext'! Amb. Temp. °e (prior sampling event)(.":y~. "j Time 1 9j.§"·'·T~.', ~ Gal. Purged r 116 , ': I . Time ..... 1....-.;...-.-;.._ .. ·.;...;,jI,··J Gal. Purged I ..... ,_.-. _. --.. .. _'. · ..... ··1 Conductance (·i 4fc .... : :1 Conductance ....... :: J pHI t.-. ~...;;......,-""·'.I Temp.oC Temp.oC ".] Redox Potential Eh (m V) I 401 . ',{, '1 Redox Potential Eh (mV) I '----":':""'-_-' Turbidity (NTU) I: 115 ,0 '.,: I Turbidity (NTU) ," '. " ". :·1 Time Gal. Purged 1.-1';..;.. .. _~_ ...... ' ·'1 Time I-.. " ,. ., Gal. Purged .... 1' _' ._--"'----' Conductance ,-I. __ ··_.-.......11 pH &...1 ,;,... __ ---I Conductance -..:.1:_' ·' ______ 1 pH """I _____ ......I Temp. GlC I Temp.oC I. .' I Redox Potential Eh (m V) 1-1 ___ --I Redox Potential Eh (m V) 1-1 ___ ......I Turbidity (NTU) Turbidity (NTU) White' Mesa Mill Field Data Worksheet for Groundwater A 10f2 capturx' (OMP'ATI6I.!i WITA..,/'--"",·tr--ruNCTIONALIT'l' Mill • ~roundwater Discharge Permit ) Date: 03/22/2010 Rev. 6 • Groundwater Monitoring Qualitv Assurance Plan (QAP) Volume of Water Purged ..... 1 .... }L..!.l..;::;()~ __ --I galJon(s) Pumping Rate Ca1culation Flow Rate (Q)~ in gpm. S/60 = L...L-----:H __ ---' Time to evacuate two casing volumes (2V) T = 2V/Q = ['1 .5,2. :I Number of casing volumes evacuated (if other tban two) I · If well evacuated to dryness, number of gallons evacuated I BO · Name of Certified Analytical Laboratory if Other Than Energy Labf ...... .;..r/._· v:;;...,.:I\:,.... --:.._.;.....-.'""'-_---....1 Type of Sample S I Tak Sample Vol (indicate amp e en jf other than as Y N speci fled below) VOCs Nutrients Heavy Metals All Other Non Radiologies Gross Alpha Other (specify) Comnlent 1...-_______ ---IIDo not touch this cell (SheetName) White Mesa Mill field Data Worksheet for Groundwater Filtered Y N Preservati ve Type Preservative Added Y N If preservative is used. speciJY Type and Quantity of Preservative: i .. ···· See instruction -...,<1 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) c ····_········· __ ······· ..... -.---................. __ ....... :._-.-J I OENISONI)JJ I ATTACHMENT 1 WHITE MESA URANIUM MILL Attachment 1 L~ See instruction L_.!!'~.!.!-.-_ .. _ . .J FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: Location (well name): .... I,-_W_Y_..J.....;I..;::b=---________ --I Sampler Name and initials: I~nn<!r jJ611;J~ frlJ.. Date and Time for PurgingJ ..... -'-t_:::~/_A-'-· t_~ _____ ----' and Sampling (if different) 1~/'"1 /~ol1 1:vb/~Oll Well Purging Equip Used: [QJpump o@ bailer Well Pump (if other than Bennet) 1 &-r'A.nM...s Sampling Event 1 Q",~f"\--Gr~ (; h \o-ro-fbl"V\'\ Prev. Well Sampled in Sampling Event I -r'w 4 -::2., pH Buffer 7.0 1.0 pH Buffer 4.0 L\.D Specific Conductance .... 1 _1..L.q..:..j..L..-__ ....II ~MHOS/ cm Well Depth(O.Olft): 1 l'-\~.on Depth to Water Before Purgind b 1 . as 4" well:1 ~~3~ I (.653h) 3" Well: 0 (.367h) 1...-___ ....1 Casing Volume (V) Conductance (avg) pH of Water (avg) Well Water Temp. (avg) I )3. qL, Redox Potential (Eh) I Jd-.'4 '1 Turbidity ..... 1 _1D_B __ ....I Weather Condo Ext'l Amb. Temp. DC (prior sampling event) 1-b 0 Time ..... 1 ,_, 5_" __ --1 Gal. Purged ..... 1 _~...&.1 __ ...... Time ..... l l_lr_';;,~_7 __ ....I Gal. Purged ..... 11...;..I_D __ ----I Conductance Conductance pH L-I __ -----' Temp.oC Temp.oC Redox Potential Eh (mV) .... 1 -,-~_4_~+--_....I Redox Potential Eh (m V) .... 1 ___ ----I Turbidity (NTU) I 1 D.5 Turbidity (NTU) Gal. Purged I l~l \ . Time 1 ,\\5.0j 1 Conductance pH ..... I ___ ...... Conductance pH IL--__ ---I Temp.oC Temp.oC Redox Potential Eh (mV) ..... 1 ___ -....I Redox Potential Eh (mV) ..... 1 ___ ----I Turbidity (NTU) Turbidity (NTU) 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 L-I _4 ...... '..1..-__ --' gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. Time to evacuate two casing volumes (2V) S/60 = ..... 1 _Yf ___ -----I T = 2V/Q = 1 ".Sl 1 Number of casing volumes evacuated (if other than two) I.g4 If well evacuated to dryness, number of gallons evacuated N arne of Certified Analytical Laboratory if Other Than Energy Lab~ .... _JV...;...~_~ _______ .... 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 r!! 0 3x40 ml 0 ~ HCL ~ Nutrients D 0 100ml D D H2SO4 D Heavy Metals D D 250ml D D HN03 D All Other Non Radiologics D 0 250ml D D NoPreserv. D Gross Alpha D D 1,000 ml D D HN03 D Other (specify) D D Sample volume D D D If preservative is used, specify Type and Quantity of Preservative: See instruction Comment A("("~\Jea. on 5,;-t~ dl..1-1140,-rtAt'Yltr-o..n~ (,.(A.("(":'" pre.~-C:::l'\t -tc,r r\A("~~· PV\~~ b~~n 0--1 \'Y7# P\A.;~ea we" ~r fA. -rc)"t~J of' <1 yY\"f1~~. fu(~erl well Jf~~ ~~~( was ~ l/ttJ~ yY\\Ark.~, P~("~G cnJe.J. ~t \ 15" fb L ~~ ..s jtc.. 0.,+ 12.00. Arr:\lea. 6" $11-G d\lt 1"?:>17. -rl1vnn«' Mtl G-ti..rr,'" pr~Gtl1-+3 coIled-$6.P1pl~ k)~p~ ~o \;)~t~.-V>w~ ~\-~.s.. ..5tA)o/Iples WGr<.. b~;]e..4 (J.,,+ 1~1, Le,.ft s;J-e, 0.7 l3;l..'J '--________ .....IIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N D D D D D D 2of2 I'· ... "iil • Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) . iOEN'SO . Af l ATTACHl\'1ENT 1 Attachment 1 \VHITE 1\IESA URANIU1\[ l\ULL Sec instruction ~~.J MINES : FIELD DATA WORKSHEET FOR GROUND \VATER ;t.~~~":U~:r.i~m~~~~.-J Description of Sampling Event: I L[f~ Ov..o.rt-et'" c.hloroFocyYi .:to I I Location (well name):l MvJ ·<3~ . '1vJi.i -17 Date and Time for Purgin~ I \/Ib/.7:ol\·· . Well Purging Equip Used: [IDpump o@ bailer Sampling Event [QV\o.r-terl; i:.h lo~rM pH Buffer 7.0 L-L~-r:..;..· .;;.;..0 __ -..1 Specific Conductancet-;I .:-I4L..J:1-&.7 ___ ......3: hlMHOS/ em Depth to Water Before Purgin~ J 5 .'10 . I Sampler Name and initials: and Sampling (if different) Well Pump (if other than Bennet) Prevo Wen Sampled in Sampling Event I ... _T,_W_4_·-....;.!_t _. ___ --I pH Buffer 4.0 Well Depth(O.Olft): I t~~·Sp Casing Volwne (V) 4" well:' •. '!>b~"IS. .·I(.653h) 3" Well: .. · 6 '. . . (.367h) Conductance (avg) L...;[_~_'t_b_\ __ ..:..-..:......;._:--,t pH of Water (avg) Well Water Temp. (avg) f :\1.\-1:3> .. ] Redox Potential (Eh)[j.7;t . .,] TurbidityL-," ....;;.jO~. _---I Weather Condo I ... _ ... ·;.-S_· ._. ~ ..... n ..... t_\.··~....;· .;..... •. _ . .........;; ____ --..,;..;........s.1 Time [rg~~-'-~:o~] Gal. Purged I' f!j),.~'i .. I Conductance I ·:SQ53 · . I pH [§.:2i..j . '1 Temp. >f:"C Redox Potential Eh (m V) ~,;;;."...,...:~~ Turbidity (NTU) 1'\0.0 ':. ,·1 Time I . )41)7 Gal. Purged I' gO ~7':.2... Conductance pH Temp.oC Redox Potential Eh (mV) 1 ·;t1 t Turbidity (NTU) , [lD.C .I White Mesa Mill Fiefd Data Worksheet for Groundwater Ext'l Amb. Temp. °C (prior sampling event)1 3° .1 Time 1'144' .. ,::-·1 Conductance r~q 5l.· Temp. ~~C GaL Purged I . 80 .Sf) .. I 'I pH I G-~' -I Redox Potentia] Eh (m V) L-I·,· ~;;;...,' .....;:73=--_-1 Turbidity (NTU) GaL Purged Conductance 1321:S 1 : ] pH Temp.oC Redox Potential Eh (mV) I :27D Turbidity (NTU) MTlI· Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged [~=E) ,3:1' ] gallon{s) Pumping Rate Calculation Time to evacuate two casing volumes (2V) T = 2V/Q::;: I ':)YD. '-11 I Number of casing volumes evacuated (if other than two) Ifwell evacuated to dryness, number of gallons evacuated ,-,--1' __ ] Name of Certified Analytical Laboratory if Other Than Energy Labf_' ~M;.....;:rA;,..;.' ' ______ ......i Type of Sample VOCs Nutrients Heavy Metals AU Other Non Radiologies Gross Alpha Other (spec! fy) Sample Vol (indicate Sample Taken if other than as Y N specified below) " Jl :..... , ... 0 " "', 3x40'ml ' Fjltered Y N ::";'~D ,'.' .' Preservative Type Date: 03/22/2010 Rev. 6 Preservative Added Y N ,:'~:'; ··,0 '.' If preservative is used. specify Type and Quantity of Prescn.'()tive: ::. ~~ See instruction ~Commcnt Arr;veA 'or\ Site 0.+ 0153} ,-ro.~l'Ier ~na 6--o-rr;f\ pn~.se,,'r fOr fW~e. e\r1cl. .~t\Mf)!'!1 e.J~"t: ?\A("~~f~'" b:~t\" .o:t 08~5 -~v.(~ecl well ·fo r GL tOtcA\ 6f 375 }'Vlit1lAtc:s, ~e( h"s . 0-S\;{\ht-di,ScDi",.. ~i tvlDS\-\o. c:ltXI.(. Pv..r~e. ert~e~ o.IIA ~#1~l'.:s I.)el'e. GO H~c\-U\ cJ-·Pi':£>. . Pe.pth.fo \'()c(tcr (.\:+1-<-1 p~r\\c. w Ct~ 81 55 . L e:\t ~ \~+-c o.:r . ) Lf:s5 '--________ .... 100 not touch this cell (SheetName) White Mesa Mil! Field Data Worksheet for Groundwater A 2of2 capturx· !;OMPATlBlt WfTH/"'O?'rTr-::-FUt+tTlONALITY Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) r~::I~~Jj~~1 WHITE A~~~;~:;~~ MILL L. __ ~MINES ___ J FIELD DATA WORKSHEET FOR GROUND WATER Attachment 1 ~_ See instruction Description of Sampling Event: I liTh G:>""W+~(' G'h'~r~"'M ..a.Oll RoS~~pl(. Location (well name ): ..... 1 __ M_W_ ... _3_?.. ________ -..I Sampler Name and initials: I.-;.nn-e. .... ~o 11, 'dO\,<j/ltt Date and Time for PurgingJ 1~/ b/;l.oJ] Well Purging Equip Used:~pump o@ bailer Sampling Event I Q\A()'f"te.rtj G h \ orl>::rol""J\') pH Buffer 7.0 Specific Conductance ..... 1 _C\_'\_~ ___ --II ~MHos/ cm Depth to Water Before Purgind 7 b .SS Conductance (avg) 4155 and Sampling (if different) ,A//K ~~---------I Well Pump (if other than Bennet) ..... 1 Q-=--t:_D~ ___ ----l Prevo Well Sampled in Sampling Event I ..... -r_w_Y_-_l_9 ____ --I pH Buffer 4.0 Well Depth(O.Olft): I l'3~. 5 D Casing Volume (V) pH of Water (avg) 4" well:1 Db.53 IC.653h) 3" Well: ...... _O __ --'.(.367h) b.bS Well Water Temp. (avg) 1 13. b7 Redox Potential (Eh) L...I _1 ~:...;;;g __ ....J Turbidityl,---S _:3 __ .....I Weather Condo Time I ),--\DO Gal. Purged 190.05 Conductance I ~ 1 b ~ Temp.oC 113. c::z Redox Potential Eh (mV) L.-I _lq_5 __ ....J Turbidity (NTU) Time 1 \L\ 02. Conductance I 91 q q Temp.oC 115.70 Gal. Purged 1 4D .yg pH 1 b·55 Redox Potential Eh (mV) ..... 1 _l..;...gt __ ....J Turbidity (NTU) 5.3 White Mesa Mill Field Data Worksheet for -Groundwater Ext'l Amb. Temp. O( (prior sampling event) 1--\ \0 Time .... /l Y_D_\:.....-_--' Conductance I Y I E <:j Temp.oC Gal. Purged 11 () ,;)...7 pH 1",55 Redox Potential Eh (mV) J.....:ll;....B_7 __ -..I Turbidity (NTU) Time 1'4 05 Gal. Purged I QO,725 Conductance I q IS 7 Temp.oC I r3.70 Redox Potential Eh (m V) ..... 1 _, &_06 __ --' Turbidity (NTU) 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 J ~ llj Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = I · "'I gallon(s) Time to evacuate two casing volumes (2V) T = 2V/Q = 133 6.73 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~,-_M_~_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 125J 0 3x40 ml 0 ~ HCL ~ Nutrients 0 0 100ml 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: Comment ~ See instruction . ArriveJ. on ~l+G ~r Ob50. -lo.nn-Gr thvtJ, (]-(A-("r,'n preSGrd--tor pu.rj-e. amrA ~t:.\MplI0 -event. Pv..r~e be.J"'fI ",,"y OQ)"S. ? lAr~~~ wen .J:, "'-+o~\;p 4;2.0 M; ".Ae~_ \N~~('" 'Wo..~ Mo~tl~ G\etA('. ?u.r~-e....~~J A'lA saMples we.~ <:..ol1t:c+~ ~-1-}L/DS. O~p+'" +t:> \,.)o.:tfr ~o..s. ~ 1.3 \ . L ~ Srl-c cd-IY () 7 '--________ ....... IDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 0 0 0 ·2of2 Mill-Groundwater Discharge permit -) , Groundwater Monitoring Quality Assurance Plan {QAP} [ . ft . j ~ ATTACHl\-lENT 1 ~OENISON"J. . A!· \VHITE i\O[ESA URANIUM MILL --"\ ) Date: 03/22/2010 Rev. 6 Attachment 1 7~~_~1~!~ ,., __ ._~ FIELD DATA \VORKSHEET FOR GROUND WATER Dcscripti~n of Sampling Event: I yT~ Q\J\().('>r~r ~h lorog()Tl ;;:tOll I Location (well name):I ...... _1.".:...;. .. ..:.YJ~4~.--:'.JIoog.t..-· ___ "'"--__ ..... Sampler Name .. and initials: [F"'::r;="-=Vl=" ~=c=-H'C"I""~=u~.!·J;i21Jt==. =. ,""""'1-"""""~H~' ~. ~ Date and Time for Purgin~ 1\7 15 {AOH and Sampling (if different) [n 11 rolf).[) l' , I Well Purging Equip Used: I -sJlpump o@ bai1er Well Pump (if other than Bennet) Sampling Event I Q'.!.!brf crG!l L h \orc£)/l"Il Prevo Well Sampled in Sampling Event 11\"">'1-0(:,·· ··.1 pH Buffer 7.0 .~.6 . pH Buffer 4.0 . y.O ... ' ·1 Specific Conductanec __ l _'f..a...9.&-1QI....· __ ---I:h1MHOS/ em Well Depth(O.Olft): IJ31:--56,.':".:',:) 4" well:I·~!~.'.~~~.:I(.653h) 3lt Well:_=,~ ==,=~:~ (.367h) Depth to Water Before Purgin~. bb ~ 4b '1 Casing Volwne (V) Conductance (avg) "-o,; . ...&..19 ..... y.us::O;....;.. ___ ----..I1 pH of Water (avg) 1.c.,.'3t>·. . I Well Water Temp. (avg) 1:.\~.Ol ' . ';'J Redox Potential (Eh)1 4~j ' .1 Turbidityl .... .2.:::.,.'b:..;.J.:..--_ ...... ·1 WeathcrCond. I .• tk,+I~~I()v-J:a> tl~O Temp. "'C I , ''S',oS ,' I Redox Potential Eh (m V) I. t.{'gg ' . : I Turbidity (NTU) ,. ;lgi .. 1 Time 1-. ',-I GaL Purged 1110' .] lCl"U Conductance Wi.-: .. -'] pH [~.2!1 ".j Temp.oC Redox Potential Eh (mV) L...I ..L4\$~;:;;")_--l Turbidity (NTU) White Mesa Mill Field Data Worksheet for Groundwater Ext'l Amb. Temp. °C (prior sampling event) I b~ Tllne [I2gr·~·:: ..... ] Gal. Purged '"",-",9""",,'1_: ._ ........ 1;).4 { Conductance l )tl5g --I pH I ~.~o ·.· Temp.oC I 1:l~OL, '1 Redox Potential Eh (mV) 1'.4&'5 .. Turbidity (NTU) 12R5·. '1 Time I~" Gal. Purged IftiIjf I \;;tl..\5 1~1 Conductance I I~ I~ ,I pH ~1!"""7""'''~~2~Z_~:.,~:~'''''~· ,...,,] Temp.oC f l~~:~~~;H.:"] Redox Potential Eh (mY) I qra. Turbidity (NTU) Mill -Groundwater Discharge Permit .-) "Groundwater Monitoring Quality Assurance Plan (QAP) Date: 03/22/2010 Rev. 6 1:. Volume of Water Purged 1-1 ..... \r.;;.,'l.~l ___ -' galion(s) Pwnping Rute Calculation Flow Rate (Q), in gpm. 5/60 = !...-I ---..11-:...1_----.1 Time to evacuate two casing volumes (2V) T=2V/Q= I q.G?-I Number of casing volumes evacuated (if other than two) ,I If wen evacuated to dryness> number of gallons evacuated Nanle of Certified Analytical Laboratory if Other Than Energy LablL......ll~·.,J ."",,/;:...fi't-.;,:_' _____ ..-..;...--'--___'·1 Type of Sample VOCs Nutrients Heavy Metals All Other Non Radiologies Gross Alpha Other (specify) Sample Vol (indicate Preservative Sanlple Taken Filtered Preservative if other than as Added Type Y N ,. specified below) Y N Y N If preservative is used. specify Type and Quantity of Presenrativc: SCommcnt ~ See instruction . .Aff\Ved 'on5ife 1A+Ji;1,~.~rI~~r ~~~ct;" pr4 e,J-t;r f~(($; ~W-(\eb~S'11 t<-t, I~~ K,('~ wel\ t.r ~ +0+(;.1, or II fVl' Il <A+es. w~+.:rh ... a S..:"J,. f"rl,e, b '11 .t \ lAIl'tI.... ~I'rh:h"'lor, . '.' ; ,.P W~G '~~~a ~~ Ll.L\'~D~r+h · f~ ~lA. t<:r W(A~ .. Si. ~~. Le.+t ~ ;1< a.t 1.2.4' '. ~rrive~ 0(\ ~~+~ ().+ og,,s'. "'-;'nn~r ~\y\tl Go,;.rrl/) pr~~lit .n,' "OI'I~'+ ~(VJpl-c~. Dt::ptt ,1b '~ter v.J(,\~ 5b ;6.,~. S()\ty\pJe~were. ba.;leJ G\.t ogl~ L<.~ S*~ CA.tOg~. " '--_______ ---iIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) r------------:--------------j ATTACHMENT 1 ~.~f3ll?~J FIELD DA~:~~:i~:E~~I~R~~;D WATER Attachment 1 bi See instruction Description of Sampling Event: I q-n; Q\A~;:::Fe(" cJ\I oro+'o('M :2.0" l<e..s CAI'vl/:::J<:. Location (well name): .... 1 _..,-_$J_L\_-_l_S ________ --' Sampler Name and initials: l-r"nnc' Ho) 1 J~ tA.jfrtJ Date and Time for Purgind 12/ ~/...2olJ and Sampling (if different) 1 12.J7/~oll Well Purging Equip Used: [IDpump o@ bailer Well Pump (if other than Bennet) ..... 161-_'-'h_tm_CS ___ ---' pH Buffer 7.0 Specific Conductancel"--9 ..... q .... q ___ --'I ~MHos/ cm Depth to Water Before Purgind £1. 3S Conductance (avg) . . I-rW14 .. 0(, Prevo Well Sampled m Samplmg Event L--_______ ---I pH Buffer 4.0 q.D Well Depth(O.Olft): I t3/\5D Casing Volume (V) pH of Water (avg) 4" well:ISQ...33 1 (.653h) 3" Well:L-. _\) __ -----'. (.367h) b.5X Well Water Temp. (avg) I ) Q. qL{ Redox Potential (Eh) ..... 1 ~_5 __ --1 Turbidity I S42 Weather Condo Time 1 1~-SD Gal. Purged ..... 1 _71 __ --' Conductance pH I b .S':L Temp.oC I )'-\.d\3 Redox Potential Eh (mV) I ?-fS~ Turbidity (NTU) Time Ir~s~ Conductance I ' 9 ~ 0 Temp.oC I l4·~S bOO Gal. Purged 1L-'i..;....:jL--._-----' pH I b·b~ Redox Potential Eh (m V) I 2: &'" Turbidity (NTU) 1510 White Mesa Mill Field Data Worksheet for Groundwater Ext'l Amb. Temp. DC (prior sampling event)I--3° Time 113S 1 Gal. Purged ..... 1 _g8 __ -----' Conductance I 2.,0 L\ ~ pH I b~~ Temp.oC I 14.jL\ Redox Potential Eh (mV) 11-02.---=-84 ___ ........ Turbidity (NTU) Time 1\353 Gal. Purged ..... 1 1;...;.1...;...D __ --1 Conductance 1 q g 4 pH I bJS~ Temp. °C 1 \q .95 Redox Potential Eh (mV) I 287 Turbidity (NTU) 1 -bf 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 = L--I ---.;.\_1 __ --' gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= 121.5 1 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.._N._'/_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 "E1 0 3x40 ml 0 ~ HCL ~ 0 Nutrients 0 0 100ml 0 0 H2SO4 0 0 Heavy Metals 0 0 250ml 0 0 HN03 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 0 Sample volume 0 0 0 0 If preservative is used, specify Type and Quantity of Preservative: Comment ~ See instruction Arr;\l~d. 011 Site: ~-t 1340. 'Jo..nt1er d\.J'\d. (TO-fr;tI pre.sc,,-r+61 fv.r~~. ?v-('~~r" tx.tjo..rt otT 1~Y3 Pv..r~eJ. W<:.\\ f'o(" 0... +01-0..\ ot ,~ \'V1;f\v..tG~. \NCA.+-cr ~C\,~ YY1lA.("~ ?\}..r~~{ Gn~etl. ~ 1313. Dc~ +C> ~"-(" \..:lIAS 51. \5 L.e.J) siTe-0..1 1357 Arriv~J. 0(\ ~14G ~ t~Ljb. lfAnnt!r o..nJ 6-a..rl';n pfe~:rrl-1-0 c.o)}~cf S4.JVIple..s. De.f'-J-l-, -to v.'lo-,+<:r \.V<'I,S. S6. 5S . .$c""lpl~~ wer~ bOl..le4 0..+ 1350. Lei=} sifc oJ-)3:S~ L..-________ .....IIDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwate(' 2 of 2 Mill -Gr~!.lndwater Discharge Permit . ~) Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) lOENtsoJ) "A! WHITE ~~:;~~:~!I MILL Attachment I .:~~;,; Sec instruction ~L~...!~~-<~~ FIELD DATA \VORKSHEET FOR GROUND \VATER Description of Sampling Event: I y Tt\ Q""Qr+~'(' C.hlcto..rOt"M ~DH ' Location (well name):I"-wo...,-._W_t1 .. -_1'\..--.. _______ __ Sampler Name and initials: 1~1\IH!l' Ho i i \.A'l~ tnt Date and Time for Purgin~ 1 i / \"11 ~O j \ . =:J and Sampling (if different) Well Purging Equip Used: OOpump o@ bailer Well Pump (if other than Bennet) Sampling Event t_=5 __ f$ ..... -:--~ _____ _ ~o...\Te.-r~ "-h I ()('~t~{'fY\ Prey, Well Sampled in Sampling Event [-r\'J!.\-;2.0 pH Buffer 7.0 [-1-0 : ] pH Buffer 4,0 4.D Specific Conductancel"-~'lq ..... q.w..-__ ..... I J.tMHOS/ em Well Depth(O.Olft): IliS.OO Depth to Water Before Purginl5%,(]~': ~l Casing Volume (V) Conductance (avg) pH of Water (avg) '"-1_b ...... ~_7_0_,_--..;. __ ...... Wel1 Water Temp. (avg) ,I· \4 :1t Redox Potential (Eh)1 ~7~ , Turbidityl __ o __ -.J Weather Cond, I' '-... : .' . 1 ~ .. -_~~~~~~n~·. __________ ~' Extll Amb. Temp. °C {prior sampling event)"",,", l ..... c __ Gul. Purged 1 .... ___ _ pH I Co .'O "'j Temp.oC I Turbidity (NTU) o Time ., Gal. Purged _, ___ --' Conductance pH ,-I __ ---' Temp.oC Redox Potential Eh (m V) ",-I ___ _ Turbidity (NTU) White Mesa Mill field Oata Worksh~t for Groundwater Time L I Gal. Purged I ' I Conductance I· I pH I -. 'I Temp.oC I Redox Potential Eh (mV) I J Turbidity (NTU) Time Gal. Purged [ I Conductance 1-1 ___ ..... 1 pHI ..... __ ---' Temp.oC 1_. ___ ...... Redox Potential Eh (m V) I~ __ ---, Turbidity (NTU) Mill • Grp~undwater Discharge Permit ) Groundwater Monitoring Quality Assurance Plan (OAP) Date: 03/22/2010 Rev, 6 VoIunle of Water Purged 10-1 __ '.;..0_, __ -' gallon(s) Pumping Rate Calculation Flow Rate (Q)~ in gpm. Time to evacuate two casing volumes (2V) 8/60 = I )2 ,0 " T=2VjQ ~ I 0 ] Number of casing volumes evacuated (if other than two) o If wen evacuated to dryness, number of gallons evacuated o Name of Certified Analytical Laboratory if Other Than Energy Labt_'_IVl_VA ______ ---' Sample Taken Sample Vol (indicate Filtered Preservat i ve Preservative Type of Sampie if other than as Added y N specified below) Y N Type y N VOCs m D " 3x40 ml 0 ,', fj!J ;, ." HCL '~ . ' 0 ,' Nutrients ,', 't;i1, , .. ,:0 ,,:: '100 ml " '0 J:jI . ' . H2SO4 00 ,"":' , :,0 Heavy Metals '0 '0 ': ~:' 250ml '0 ,>,'0,':,': HN03 ",0 , ' D "" All Other Non Radiologies :'0 "0 " 250 rril '0 ' ,- ,'0 , NoPreserv. ':0 ·,:': [J Gross Alpha ."0 -':~ 0,' , '1,000 mt ·.0 " 0 ' HN03 0 "" :,0 ; " Other (specify) ,. ~' . Sample volume ",' ~ : ,,::0 ;, 0 :. [jJ , " D, r8l , .. , . , .. ' : ... " Ch\or',~( If preservative is used, specifY Type and Quantity of Preservative: .. ~Comnlent ,<~,J See instruction Arr'\J~ ()(\ sl+e iA.-t 01yq ~ ~n(le.r Mt,\ &tJ..(r)1) on Sl't~' ..fer ..sO-Mfl;~ €uenf . . -r~rn~ ?\AOlp Otl. SG\M,pieS were.. c..ollC'~+-et! o.:f 0"155 wo.:rcr was cJe.6.(. L~·n-Si+c 6...1-0&60. "'-_______ ---tIDo not touch this cell (SheetName) White Mesa MtII Field Data Worksheet for Groundwater .j I Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) r-'---"-" -._-_ .......... _._ ... __ .. __ .. ; --! iOENISOJ)jjl ATTACHMENT 1 WHITE MESA URANIUM MILL Attachment 1 b.~ See instruction L._'.AIN.,",~~ _____ ~_j FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 1 11Th Q \AG\.,...+t.r G"h \ or~fOY"M :;z.611 R<.~GV11f>k Location (well name):1o-1 _1_V,J_'-\_-_'''...:..-_______ ----' Sampler Name and initials: Date and Time for Purgind 1:t/D/~J1 and Sampling (if different) Well Purging Equip Used:~pump o@ bailer Well Pump (if other than Bennet) 1 /-//13- Sampling Event 1 Q.\A~;::+e.r1j G~lo{"ororM I MW-2/:::. Prevo Well Sampled in Sampling Event 10-_______ ----' pH Buffer 7.0 Specific Conductance 10-1 _4.:-~~q ___ ----,1 /-tMHOS/ cm Depth to Water Before Purginm Sg .. b6 Conductance (avg) '3 0 ES~ pH Buffer 4.0 \..\,0 Well Depth(O.Olft): I l::lSDO Casing Volume (V) pH of Water (avg) 4" well:1 ,-\3.3~ 1(·653h) 3" Well: 6 (.367h) '----=---....1 Well Water Temp. (avg) 13. 51 Redox Potential (Eh)1 ?-YS Turbidity 1 5·3 Weather Condo ..... 1_~_o.._rt_\6 __ 6_\b_v..rA_i( ____ _____I Ext'l Amb. Temp. O( (prior sampling event)l-l b Gal. Purged 1...1 ___ .....I Time Gal. Purged ..... 1 ___ --' Conductance 1 3DS~ Conductance pH 1&.... __ _____1 Temp.oC I 1'3.59 Temp.oC Redox Potential Eh (mV) I 2L\S Redox Potential Eh (m V) 10-1 ___ ----' Turbidity (NTU) 1 5.'3 Turbidity (NTU) Time Gal. Purged ..... 1 ___ -....I Time Gal. Purged 10-1 ___ ----' Conductance pH L-I ___ .....I Conductance pH ..... I ___ --I Temp.oC Temp.oC Redox Potential Eh (m V) 10-1 ___ ----' Redox Potential Eh (m V) ..... 1 ___ -....I Turbidity (NTU) Turbidity (NTU) 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 ___ .-1 Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = IL-l_q __ ---' gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= I 0 I Number of casing volumes evacuated (if other than two) .... 1 _0 ___ ....... If well evacuated to dryness, number of gallons evacuated .... 1 _0 ___ ....... Name of Certified Analytical Laboratory if Other Than Energy Lab~ .... _.;v._V._ft ______ ---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 m 0 3x40 ml 0 ~ HCL ~ Nutrients 0 0 100ml 0 0 H2SO4 0 Heavy Metals 0 0 250ml 0 D HN03 D All Other Non Radiologics D D 250ml D D No Preserv. D Gross Alpha D D 1,000 ml D D HN03 D Other (specify) D 0 Sample volume D D D If preservative is used, specify Type and Quantity of Preservative: Comment ~ See instruction A {'r;\JeA 01\ ~J+c:., oJ ) 417--r "",ner AYlo., G-Arri 1\ r,e&:-rJ--;}o GO ilGd-i.Ct.t>1 p~ - S~1'I\ f'1e.S v:le.fc, cotled-e.A "'} 142S, L~~ ~¢<J a.T )Ll.?7 \).) O\.~ 'vJ ().b c.. 'eo. "(" 1..--__________ IDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 D D D D 2of2 Mill· Groundwater Discharge Permit ._) -Groundwater Monitoring Quality Assurance Plan (CAP) t ~ENISOJ)~:,~ 'VHI.TE~~~~~~::I~!f J\ULL ·,.~,~~~t~:.!!_.....,;~_ ..... J FIELD DATA 'VORKSHEET FOR GROUND 'VATER Description of S anlp ling Event: I t...1Th Qv..o..c1'"(:( GhlOf"o·fC,rm ~oll Sampler Name Location (well name):1 IWt\-~ and initials: Date and Time for Purgin~ It/14/~ I) and Sampling (if different) Wen Purging Equip Used: []!]pump o@ bailer Well Pump (if other than Bennet) Date: 03/22/2010 Rev. 6 Attachment I ;;:"y Sec tnstnlction Prevo Well Sampled in Sampling Event I .... _1_W_'l.._i_-t.._l ____ --.J pH Buffer 7.0 I ,,-._7~.D-"'·' __ .....I1 Specific C onduetnnce &.-1 --Jo.11 .... 1"--____ --'1 J.1MH OS! em Depth to Water Before PurgingJ '0,45 I Conductance (avg) ..... [_·..;;;3_3_3;...~~ _____ ..;.;....,;;;--.J pH Buffer 4.0 4,0 Well Dcpth(O.Olft): I IOb,OC Casing Volmne (V) pH of Water (avg) 4" Well :1 :>.. ~ .]1 3" Well: .0 ' .' i'"653h) (.367h) Well \-Vater Temp. (avg) I 1 'S~;;t.C· Redox Potential (Eh)t '3.b.'3 . TurbidityL-1 ~. O~_---1 Weather Condo I ~ { I L.--_ • ::>_"'nf'\-=---.;·t ~ ____ ~. Time Gal. Purged ,--I: ___ ·..,J·I. Conductance I 333 fS . ..1 Temp. DC LJ!}".~~=] Redox Potential Eh (mY) [3:(;,3. ... , .. :] Turbidity (NTIJ) ,. .·b I Time Gal. Purged .... 1: ___ .....1 Conductance pH ... I· ___ ...l Temp.oC Redox Potential Eh (nIV) ""'1 ___ ___ Turbidity (NYU) White Mesa Mill Field Data Worksheet for Groundwater Ext'l Amb. Temp. °C (prior sampfing event)f ~ Q . Time . I Gal. Purged ..... 1 _~--,' J Conductance L-I' ___ '--11 pH &.-1 _.--;..--..1 Temp.oC 1-1:---..;.._.......-1 Redox Potential Eh (m V) I ..... · _. "':"';""'_--' Turbidity (NTU) I .:. I Time Gal. Purged ..... 1 ___ -' Conductance ""'1· ___ ---' pH 1 ..... ___ --' Temp.oC .... 1 ___ -.I Redox Potential Eh (m V) &.-' ___ --' Turbidity (NrU) Date: 03/22/2010 Rev. 6 Mill • Groundw.ater Discharge Permit .~ •. ') -Groundwater Monitoring Quality Assurance Plan (CAP) Volume of\Vater Purged ''--_0;;..... ' ___ .... gaJlon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 1.-1 ...:..::H ;:;,...) I __ ----I Time to evacuate two casing volumes (2V) T=2VlQ = I c I Number of casing volumes evacuated (if other than two) b If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other TIlan Energy Lab~ ..... _M_~' _____ "';';""---I Type of Sample VOCs Nutrients Heavy Metals All Other Non Radiologies Gross Alpha Other (speci fy) Ch'or~dc: Sample Vol (indicate Sample Taken if other than as y N specified below) .... rji .. 0 ::"·100 inl ~o :: '" 0 ': .: 250 m) Filtered Y N Preservative Type Preservative Added Y N D .~·:.:.::.·.S · . HCL ... 0. <. ',' J~L: H2SO4 '': , . 0 .'·;·,:.0 :' ~:'. 0 .~.> ·;·.·~'O ~.;. If preservative is used. spe~iiY Type and Quantity of Preservative; f Comment 'f i,d. See instruction A(ri\)e~ 0" slt~ ",t \~O5.~ -r;(\n~r . Ma <rOoffit\ -r'A«(l<~ ?V\~? Ofl 1b (~Il ~ +~W III ~t1vJ-~, V)~tc;r .\J..)CA..~ c.\~r. Le·-tt s.:tc.. oS )31:3 p('es~I1 'r +or Sa.Mpij~~ ~vcnt. 5>t'..j1f\ plot'S · were eel )-ec..+~J ,,:t. 1'310. '-_______ ---aIDo not touch this cell (SheetName) White Mesa Mill field Data Worksheet for Groundwater ~ 20f2 . capturx' COMPATl6H wlTH/'(.I~:J""&-f\JNCTIONAlITY ... Mill • Groundwater Discharge Permit ) Groundwater Monitoring Quality Assurance Plan {QAP} Date: 03/22/2010 Rev. 6 I ATTACHMENT) lO£N,sorll . A l \VHITE I\-fESA URANIUl\IMlLL ;,. MINES : FIELD DATA \VORKSHEET FOR GROUND WATER Attachment I &:':$I~ Sec instru~tion .'\. ...... ~ .. ~~~~ ... ~.:o..:;a'b'..lV;a. Description ofSampJing Event: I 4",1-\ Q~ct~r Gh lo<'c-.-\P{I"\ .?-O t I Location (well name):",-I-'-~I..;..;W;...t...L..I~ ...... .2 .... ' ________ ....I Sampler Name and initials: I"'-;:nne.r He il;J~/TH-- Date and Time for PurginCliZi;I~R.~)l -:_-~·:_.r ] and Sampling (if different) IL-.LJoit/:....Ll~b/:..:;;9-iJ~I"'-\ ___ --' Well Purging Equip Used:@Upump o@ bailer Well Pump (if other than Bennet)I--~~Odfos·~ ::J' Sampling Event I ~("+e;rl ~ C.h lQr;;t;(1~" Prevo Well Sampled in Sampling Event 1·i'"W '-\ . .::r:l, pH Buffer 7.0 pH Buffer 4.0 [ 4 _0 Specific Conductanccl __ 1 ..... 9.&..,·S+-__ ..... If.lMHOS! Cln Well Depth(O.Olft): I l~\. ()C Depth to Water Before Purgin~ 5<...\ ::l..g' Casing Volunle (V) 4" wen:1 '4~.5" 1<.653hl 3" WeH:I..._ -=O ___ .(.367h) Conductance (avg) __ :>,.;:;,4 ..... · ..... IO _____ ·-.a1 pH of Water (avg) .1 \Vell Water Temp. (avg) ~=li . Redox Potential (Eh)l..-I Y..a.;x..b4..1..-__ Turbidity 1_ .-8 ....... 3 ______ ..... Weather cond., L..._G_l_e_CA.._1 __________ -.a1 Time I' IL131 Gal. Purged 1"---':5;;....~_ . .....--... ......... .1 Conductance I 33&1 Temp.oC Redox Potential Eh (mV) l .. : ~:rt:s.:~_] Turbidity (NTU) Time ,Ilf)'l Gal. Purged I 71 I Conductance I 39:;tJ pH L ~· !~r:~:= ] Temp.oC Redox Potential Eh (mV) [y~! J Turbidity (NTU) 1&4 White Mesa Mill Field Data Worksheet for Groundwater Ext" Amb. Temp. O( (prior sampJing event)1 jO Time l ___ p ...... 1·3_8'_-"'" Gal. Purged I L-.--66 ___ ' ___ I Conductance I '3405 Temp.oC I IS./1 Redox Potential Eh (mV) 1'"-.... Y_70 __ ....I Turbidity (NTU) 183 .1 Time I i~'y:lj Gal. Purged 1 ........... 1It_· ___ . I Conductance r' ·5B.l¥-:~ .l! Temp. °C L~]t? ~Z :_c . J Redox Potentiul Eh (mY) fa......::,'i ..... '-7 _____ --' Turbidity (NTU) 185 .. Mill· Groundwater Discharge Permit ) Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged ' ..... [ -:I~r.,.;.;6o...--__ ....... ] gaHon(s) Pumping Rute Ca1culation Flow Rate (Q), in gpm. Time to evacuate two casing volumes (2V) S/60= I H T=2V/Q= I.:J,~~ :J Number of casing volumes evacuated (if other than two) IfweU evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Labt,-,~' _#_/ft_, _____ ..... Type of SampJc Sample Vol (indicate Sample Taken j f other than as Y N specified below) Filtered Y N Preservative Type Preservative Added Y N VOCs ,,0 ,· ,-,'l:j ,',-HCL , ":" rsa, '~' , , , 0 , Nutrients <",0 ;' : .~: H2S04 ,., ~ , Heavy Metals All Other Non Radiologies " ,,' ,-:'0,;-:'< ,:. D ~,::, No Prcserv~, Gross Alpha , : :' 0 :',,' :,,~·:.'O">. 1,0000)1. Other (specify) ',;.' 0 .. > c"'"p ;::\ HN03 ' ", :': '.::":,,-.-:: " ,~D '·, ','m,," , ,., .,.,,: If preservative is used. spe~i(y Type and Quantity of Preservative: :;4 See instruct ion ~ Comment rmli . , Arr~\J~ 0(\ Si1-e. 0:+ \"'\2<\. -r-.,..",(\er"",'" "&r.l(( 11\ f(e~,,· or p.~1e. ,?v..r~~ bejD.n ,a-t 1i1'3?-. PW"~d. w~ll .Q,r-",M".I of g IY\i"ul-.. ..:;. ~,J((" h"cl '" !',!~+ j;.s<.o\O( I b,:,f ;,c~ 1'1<.t CJ~r ; Pur,~( et1Jea v.t 14,4D . D~f'th +0 \NC\1--er W4S 64,,30 Left s./+~ 47 J444 Arr,vea 01\ Sl~ ~t OKS,", 1et..t1ner Mc.\ Gv,.("(i'l) p('c~(!nt tc coJ.kc\-.&tiA'rk4 ~t\«}pk.~ Dept~ tv WcAter WC\.5 ,sy .:tS, S(i.rYlpk~ were. b~\~leJ d\t 0901 Lect s ;tc. ,do' D<:I£)3 '-___ -___ --..tIDo not touch this cell (SheetName) White Mesa Mill , FIeld Data Worksheet for Groundwater Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Ir~~:I~~J)j ~l ATTACHMENT 1 Attachment 1 WHITE MESA URANIUM MILL b~ See instruction ,MINES ! t._~_._--_-~~_-... ~ __ ,.J FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 1 ynt G\A.o.rf~r ~l1lo;b+~rM ~Oll Re.5C4.Wlpk Sampler Name Location (well name):L-1 __ -r-_w_4_.>_2._' _______ ----' and initials: r:=r;.rl!1 ~r l"Jo 11.·JI\.!j/-rtf Date and Time for Purginm 12/ b/ a.o ~ ) Well Purging Equip Used: [[]pump o@ bailer pH Buffer 7.0 Specific Conductance lL--G1_1..;..1~ __ _JI ~MHOS/ cm Depth to Water Before Purgin~ 5 Q.1 k' Conductance (avg) L-[ _~_b_~_~ ______ ...J and Sampling (if different) I \.2../71 ~O'} Well Pump (if other than Bennet) 1 6-rlAntt..fo.s Pre v . Well Sampled in Sampling Event I.,. vJ 1..\ -;;Q.., pH Buffer 4.0 Well Depth(O.Olft): };tl.0 () Casing Volume (V) pH of Water (avg) 4" well:1 Y3. ~S I (.653h) 3" Well: 0 (.367h) ~------' I.DS Well Water Temp. (avg) 1 )!:).~'l:O Redox Potential (Eh) L-I ~_~_~ __ ...J Turbidity 1 .... ':2.._8'_·5 __ ...... Weather Condo Time Conductance Temp.oC 13C>'b I IS.\S Gal. Purged I&......-.;;ss ____ ----' Redox Potential Eh (mV) I 2..~O Turbidity (NTU) Time I 1SIS Conductance Temp.oC 13{)'35 1 JS.LlO ';5:9. 0 Gal. Purged ..... 1 ...;7_7 __ ---"' Redox Potential Eh (mV) 1 UY Turbidity (NTU) White Mesa Mill Field Data Worksheet for Groundwater Ext'l Amb. Temp. O( (prior sampling event)1 -5° Time l'---IS_l~L' __ ...... Conductance Temp.oC I ~b ~-::, I \5)~~o Gal. Purged ..... 1 {,b ___ ...... pH 1 7 .0 '1 Redox Potential Eh (mV) ..... I~_'_I __ ---' Turbidity (NTU) Time ,--11~5_' b~_---, Gal. Purged 1 .... 8;;,...8' __ ----' Conductance pH 1 7.06 Temp.oC )5.qs Redox Potential Eh (mV) ..... 120_" __ ---"' Turbidity (NTU) 1:2.7·9 1 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged L-I _-=g..;:::;,3 __ _____ Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 1.-' __ 11 __ ---' gallon(s) Time to evacuate two casing volumes (2V) T = 2V /Q = I 7 ~ 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 Lab~L-_.A..l._v',4 _______ ....... Sample Taken Sample Vol (indicate Filtered Preservati ve Preservati ve Type of Sample if other than as Added y N specified below) y N Type y N VOCs ~ 0 3x40 ml 0 ~ HCL E1 0 Nutrients 0 0 100ml 0 0 H2SO4 0 0 Heavy Metals 0 0 250ml 0 0 HN03 0 0 All Other Non Radiologics 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: Comment ~ See instruction L--________ ....... IDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater 2 of2 0" Mill· Groundwater Discharge PermIt . ~) ~ Groundwater Monitonng Quality Assurance Plan (QAP) . Date: 03/22/2010 Rev. I) , -ATTACHMENT] jOENISoJl)A..A r \VHITE l\fESA URANIUM MILL Attachment 1 .;¢~~ See in:;tru"tion ~~;:t.-, __ !!!!.!1~."_,,,_J FIELD DATA WORKSHEET FOR GROUND 'VATER Description of Sampling Event: I ",-\",rh QMotA.(".fGC l:hl c co'£; ciYl Location (well name ):1 __ 11 ..... :·· ._\,\J __ :t ...... -"~ iQ~ _________ ~] Sampler Name and initials: I-,;,,,tl er HAlI;q~!:1n-l± Date and Time for Purgin~ ....... ~II.-.I-=j5 .... 1 .... ':J.o ............ iI....o..-___ _ and Sampling (if different) l\lIb/.;;l.o 1\ WeI) Purging Equip Used: OOpump o@ bailer Well Pump (if other than Bennet) l 6-ru.ntA,fo ') Sampling Event IQv..o.crerij L blQr4t9rm Prev. Well Sampled in Sampling Event 1-r'I.-:l lot-! 0 ' pH Buffer 7.0 7 .0 '. ·1 pH Buffer 4.0 Specific Conductancct-l_lJ...L.9L..SI--__ ·--llJ.1MHos/ em Well Depth(O.Olft): 1)13 ~5 D" Depth to Water Before Purgin~ .53 ~S.j· . I Casing Volume (V) 4" well:1 ~40·1~. . I (.653h) 3" Well:. ~. _ (.367h) Conductance (avg) ..... [ _· .... S:;..;:o ...... S""3..o1;.· ____ ---' pH of Water (avg) 1,-' ___ (,_,b~/_' ______ -............ Well Water Temp. (avg) I IS·:l..i .. '1 Redox Potential (Eh)[~'3 _u_ "J Turbidity1--1 .-5.c....) __ ~.I Weather Condo .~\eo..r Time I ~ .3j;j , I GaL Purged 1 55 . . 1 Conductance L_~Q8~r':_:] pH I b.bl ;: I 1 .15 ,~J . I Redox Potential Eh (mV) r·q9~.· J Turbidity (mU) Gal. Purged ~1=eto.l.J-_'_--' Conductance I Temp. <>C) pH .... t ___ ....... Redox Potential Eh (mY) IL..;... ___ .....I Turbidity (NTU) White Mesa Mill field Data Worksheet for Groundwater I Exfl Amb. Temp. °C (prior sampling event)1 70 Time I~-.··I GaL Purged I ~ ... ' .• Conductance 1--1 ...... : _. __ --' pH 10-1 __ ___ Temp.oC I Redox Potential Eh (nlV) &...1 . ___ .....t Turbidity (NTU) Time 1"R1?&::' GaL Purged [ =fftt . pH_I ___ _ Mill· Groundwater Discharge Permit .. Groundwater Monitoring Quality Assurance Plan (O,AP) . , -"'\ J Date: 03/22/2010 Rev. 6 Volume of Water Purged I'-___ ~ .... '_-_. __ ......... gallon(s} Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = [,,-_. ·-Illo.l...l __ -I Time to evacuate two casing volumes (2V) T=2V/Q ;I '·l i I Number of casing volunles evacuated (if other than two) It:tD , If well evacuated to dI)'ness~ number of gallons evacuated ISS ' Name of Certified Analytical Laboratory if Other 111an Energy Labf,-_'N_.·_IJ\~' .....,.;.;....-____ ~ Type of Sample VOCs Nutrients Heavy Metals AU Other Non Radiologies Gross Alpha Other (specify) Comment Sample Vol (indicate Sample Taken if other than as Y N specified below) Filtered Preservative Y N Type Preservative Added Y N If preservative is used. specify Type and Quantity of Preservative: ;~~ See instruction Af(l\led o.n .. srt'e ~+ \'34~",~~nlle~ ~nJ..' .. ~~(';V) ··~r'~~c:nt ,tcr::f~~1!:'?~'jeb~0Vl~1 13Sa : ,. ."" ~v.r~ecl\NeU .tD\ fA .t6t\A\ "o-r·~.: 5''M;t\~+~S . ''P~(~e:~ :\0eH dr'i' ~~+~(v.lc;..J: Ml)~+}J c.l~( ... r v..r~c:. enJ~ o..t , 13'57 Le~. S,i+~ d ,)400 .. . .... :... '. . . .,'. . . Afr;~e3. on p!I+~ ~4 og41. -ro. .... Of!r NI""&~r6n' rre~ei1r ·r<? colleL+..so..Mpfe-s .. ~::>epth +0 \;:)c{+(i' .~~ . ~?:; . .7~, SqmpkS Were... ·bOl.\~kA CA:t. o(Sf>L le.ft ~ {',tc ~+08'sy _ . I-...-________ ' ..... Ino not touch this cell (SheetName) White Mesa Mill Field Oata Worksheet for Groundwater Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) r--------------···-··-··----··-·-1 !OEN,so'NI)~~I' ATTACHMENT 1 WHITE MESA URANIUM MILL Attachment 1 b.~ See instruction I MINES FIELD DATA WORKSHEET FOR GROUND WATER 1.._. __ .......... _-_, __ ._-__ _ Description of Sampling Event: I l.\th Q,""lAr+u-Gl,l C>ICJ~(t'V\ 201 J R-c.5:,CtWJp}\ Location (well name ):L-I T_W_Y..;... ... _.22.. _________ .-I Sampler Name and initials: 1 ::::r o...fll'\ er OJJo 11 ;J~.!!)/""]1-j- Date and Time for Purgin~ ___ '~_I_b_I_~_I_l _______ ..... and Sampling (if different) L-I ~l.2_/_f_I_~_\..;...l ___ ---I Well Purging Equip Used: [J[J pump o@ bailer Well Pump (if other than Bennet) 1 GrrW1d"Fbs Sampling Event 1 Q'V\o..'+~d~ G h l orOR)'(" M Prevo Well Sampled in Sampling Event I -jwLj -I~ . pH Buffer 7.0 7.D pH Buffer 4.0 Specific Conductance ..... 1 .....\4 ---:q .... q ___ --II ~MHOS/ cm Well Depth(O.Olft): L-ll_l'3_._E,_O __ ~ Depth to Water Before Purgind b3. ~ 0 4" well:I -:S& ·1g 1(·653h) 3" Well: b (.367h) '------_ ..... Casing Volume (V) Conductance (avg) 5'-\~, '-----------~ pH of Water (avg) Well Water Temp. (avg) 1L) .73 Redox Potential (Eh) 1 ~1 Turbidity ..... 1 _18_._0_---1 Weather Condo Ext'l Amb. Temp. O( (prior sampling event)l-q b Time 11440 Gal. Purged ..... 1 fO ___ --" Time 1L-"I_Ll_ll.·_i:_I _---I Gal. Purged L-I _b_k_" __ --' Conductance 5'13) Conductance pH 1...-1 __ ----I Temp.oC Temp.oC Redox Potential Eh (mV) I ::l.b1 Redox Potential Eh (mV) ..... 1 ~ ___ ---' Turbidity (NTU) I g. 0 Turbidity (NTU) Time I Vr-r:t. -Gal. Purged ..... 1 --,'71~' ...... 1 __ ...... Gal. Purged __ I ~..;;...' ..;;...S __ ---' Conductance pH ..... I ___ ...... Conductance pH ..... I ___ ...... Temp.oC Temp.oC Redox Potential Eh (m V) __ I _____ ---' Redox Potential Eh (m V) __ I ___ ---' Turbidity (NTU) Turbidity (NTU) White Mesa Mill Held 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 ......;S:=;;.,:;;;:5~ __ ---I Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = 1-.1 _1_1 __ ----1 gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= 17.,OS I Number of casing volumes evacuated (if other than two) Lql If well evacuated to dryness, number of gallons evacuated ss Name of Certified Analytical Laboratory if Other Than Energy Labf ..... _~_~_',(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 TEl 0 3x40 ml 0 ~ HCL lSI Nutrients 0 0 100ml 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: Comment ~ See instruction Arr-;v-eJ. on Si-t<=.. od-ll\~. '1",,,11<:'-(N'l<l G-o.(rin rre5Ul+ -FOr P\A('5e., ~~-e b~q'l ~t-1Y55 P\A.<~ed ~(j11 ~r (Iv ~O+~l of' S l'\'\;n lA.te~. 'P\A(~~J well J(~~ \Uo..+t:r w6J (, J etAr. PlAr~t:.. ~Y\dul. ~t }4Yl). LJ} S,t~ a.+ J4~. A,riv~a ()n Sl~~ ot 13SS. -r~nner Ma G-ar ... :" 'P ... e.sent -to coJ1~d-S'tMP]<S, De?+\' -k ~""'h:r vJ~ ~.£3. SlAl"\.p1e!> \Nerc b",;ld •. J 13f.9. LeI1 5 rt"-c:>..1" l~Ol 1.....-________ ...... IDo not touch this cell (SheetName) White Mesa Mill Field Data WorksheetlorGroLindwater N 0 0 0 0 0 0 2of2 fAil! • Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 ,Groundwater Monitoring Quality Assurance Plan (CAP) j-' ATTACHl\IENT I iOENISO,}) .. J; \VHITE MESA URANIUl\1 MILL :,jL"'....wM!!!!!,~~ .. .,>~~j FIELD DATA \VORKSHEET FOR GROUND \VATER Description of Sampling Event: ('--\Th Q\.A()-.("tef" C.h lOf'o..rcrM :;;1.0 'I Attachment 1 Location (well name ): .... L I\.V..:..I ~11..:.. ... _;l;..-.....3 ___________ ----I Samp'ler Name and initials: I J;t1\11(:r 1:\0 11 ,'d&\j /nt Date and Time for Purging HZ J 4 lio l\ and Sampling (if different) [2Z2Z~72 . --=] Well Purging Equip Used: [f[]pump o@ bailer Well Pump (if other than Bennet) [ G':rv-(!~t£2 ~ ... . J Sampling Event IG 'WAc4--er-b L\11o('()~(~ I Prevo Well Sampled ill Sampling Event I"""W4 -ILf I pH Buffer 7.0 7 .0 pH Buffer 4.0 I Specific Conductancct-,I -i1'-tj....;~ __ -.!1 pMHOSl em Well Depth(O.O 1 ft): I i It.t "00 Depth to Water Before Purgin~ bS, OD Casing Volume (V) 4" well:I:?1-'i't 1<·653h1 3" Well:_ C . . _ (.367h) Conductance (avg) ~_"_"",,,",:,;,~_~~. ~ ...... _LJ""",·. ~~l~~.·..-. __ .: __ .. ,~~....J;' . pH of Water (avg) 1r......;'~=.2D::;;:·~ ____ -..I Well Water Temp. (avg) l }t .. t r1 Redox Potential (Eh) I i9g . Turbidityl.sq _ '1 0 - Weather Condo Ext'J Amb. Temp. °C {prior sampling event)11 ~ 'I Time i l9 lk I Gal. Purged 1"-,_4.0-'1:....,· _ ..... Time [I~Il_ .•. :J GaL Purged [55 I Conductance [3b~::=] pH I ,b. ~o Conductance I '3b38 , I pHI b.~ll I Temp.oC Temp.oC ; J4 .18 I Redox Potential Eh (mY) I ~(,)l c Redox Potential Eh (nlV) I :2.~j I Turbidity (NTU) , ~-\ ' Turbidity (NTU) f6t. .:J... I Time t 15! IE:.· :-:] GaL Purged I L.... '.;;;;...;';....'" _-----I Time 11414 I Gal.. Purged I '1t.. I Conductance r:s;56::: :J pH I " .:;l..O Conductance 1 '3~!L:J pH I (;·~3. I Temp. (>C f i '1 .18 Temp.oC IJ9jg .. : J Redox Potential Eh (mV) l ;l,.'l8: II Redox Potential Eh (mV) ~, =:J Turbidity (NTU) I ~4 -3 Turbidity (NTU) 158.6 I White Mesa Mill Field Data Worksheet for Groundwater Mill • Groundwater Discharge permit ""') ..Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged 1'--1.1.-;'_' ___ -' J>umping Rate Calculation Date: ()3/22/2010 Rev. 6 gallon{s) Flow Rate (0), in gpm. S/60 = t..-I _·""""""O __ ---a Time to evacuate two casing volumes (2V) T = 2V/Q =: I .:s~S' 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-_·NI:_,..;...··,,_· . _' ____ '---' Type of Sample S I Tak Sample Vol (indicate amp c en if other than as Y N specified below) VOCs Nutrients Heavy Metals All Other Non Radiologies Gross Alpha Other (specify) Filtered y N Preservative Type Preservative Added Y N :,:/\.O.t,.~ ~·,,:"D .,.} No Preserv. '-'c'; -.; ;,' :;' .. ," . .- . ':':;:'.~." ., '. " " ,_ ',.op.,:. ':" , .. ' .-:':-' .... ', . I· ~:., :.:.,,:~.~,:., "'. '.' .:. :'. .. If preservative is used, specify Typ~ and Quantity of Preservative: i'· See instruction ~Conunent i.-.. ________ -IIDo not touch this cell (SheetName) 'i \~ White Mesa MW fjeld Data Worksheet for oundwate:r ... Mill· Groundwater Discharge Permit .Groundwater Monitoring Quality Assurance Plan (QAP) , , ATTACHMENT 1 I "EN I SON'): '.A 1 \YHITE l\tESA URANIUM ~ULL -"\ j Date: 03/22/2010 Rev. 6 Attachment 1 Sec; instnlctiun :*,4 , MINES ! FIELD DATA \VORKSHEET FOR GROUND 'VATER ~;;:;i~~7s'=;i~~ Event: I L1Th Q v..o.rter c..h loro·.rorm ~O 'f ] Location (well name):I-' _1..;...W;:.;;.......l\,..\I-... ...II::~;;...l.j.L.· _______ ..... Sampler Name , , , " and initials: -rr. ........ 4~:; ........ J)~ ........ (' II-i;a JI ....... i:~~--;~-, .~"...",.,.,it.....-~=,~~, ......... " -__ ~""""""'l, Date and Time for Purgin~ ) '/15 /..20 II and Sampling (if different) Well Purging Equip Used:OOpump o@ bailer Well Pump (if other than Bennet) Sampling Event I Qv..(;I.('+er;~ L..klorc..tcrm ::J Prey. Well Sampled in Sampling Event ..... 1_~_vJ ____ 4_,_O_'f ___ ---' pH Buffer 7.0 [: 1 .0 pH Buffer 4.0 Specific Conductance """I ...l1t...,;'1...:.<\ ___ .....J: J !J.MHOSs' em Well Depth(O.O 1ft): I 1 1~ .50 Depth to Water Before Purgin~ 55. Ii Casing Volwne (V) 4" well:l, ':?7.'4, 'S l(0653h) 3" Well: o . (.367h) Conductance (avg) L...I _'lJ-~J,.-j.u.I_-';" __ ---l pH of Water (avg) , . I Well Water Temp. (avg) rj 4 .~'~] Redox Potential (Eh)1 Y'30 Weather Condo I n t\. C J . \ . 10-(1::;;) (; V4 ~ Exff Amb. Temp. c>c {prior sampling event)_1 :;1._4_--1 Time [9~}2-<""1 Gal. Purged I 'bb I Conductance ["1 y ~S pH [".51 ] Temp. cC Redox Potential Eh (mV) Turbidity (NTU) I $l., D Time (og3S I Gal. Purgedl II.-.J_iI..::;"E_---' Conductance (]B:Y:,=:' :] pHI !-I. b~Sb~_", I Temp.O( [~1.:~~(:~:,' ,if! Redox Potential Eh (m V) I 4~ I Turbidity (NTU) Ii.':) ~ White Mesa Mill Field Data Worksheet for Groundwater Time I O£{?)4 .. I GaL Purged I 7Z I Conductance I' q '-l:1. "3> I pH I b·S' ·1 Temp. QC 114.,'1 I Redox Potential Eh (m V) I y 51 I Turbidity (NTU) r 1'-4 I Time I Qg:3" I Gal. Purged I 99 I Conductance Ij~!:l;t I pH "$' I Temp.oC I Jq'b1 . I Redox Potential Eh (m V) I y . .:2,8 I Turbidity (NTU) I ).'} I Mill • Groundwater Discharge Permit "......., Groundwater Monitoring Qua!ity Assurance Plan (OAP) Date: 03/22/2010 Rev. 6 Volume of Water Purged I L-_-J.q-"S __ -...J gaJlon(s) Pumping Rate Calculation Flow Rate (Q)~ in gpm. Time to evacuate two casing volumes (2V) S/60 = 1..-1 -:..i .I..o-i _---I T = 2V JQ = I ib g} I Number of casing volumes evacuated (if other than two) If weB evacuated to dryness~ number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy LablL..~~A_vl:....::.f\;;,..' ______ .....J Type of Sample Sample Vol (indicate Sample Taken if other than as Y N specified below) VOCs " '.m·· ; o· 3x40 ml Nutrients ',' '··Nt "", " '0' 100 ml ' .. ~.t.' I Heavy Metals .~.:. ,'0 , ' ... : ... :·,C,l ..... 250.ml All Other Non Radiologies ___ .O ~;~' ::'0 .' 250 ml Gross Alpha Other (specify) .~ ··",0 ' Sample volume . tComment Filtered Y N Preservative Type Preservative Added Y N 0 ./ . '·;'0 ,._' If preservative is used, specify Type and Quantity of Preservative: ;' -'" See instruction id A~f~\J~ ~f\ '.si+e. ~J . 0 t(~~ .. -r.~I'\(\et* ~nA &6.(r;" preScrrtRor rv.~e.·, T'v..f~< -bej~t\ od-08:;'7. ? .... f~a\ ..Jell +br ... 1-0+ ... 1 .,Fcr Mil\t.\teS. W",:tu voo.-s, cleo., .·\-hro~ov..\, +he! pLA(~e. PV\.("~e. entA~~ "t 083~ ~ De p+h to luJ'\tc: \.0~s. bS. Jr .. LGtt $1t~ 0:+. 08 f1c . A-\("\ve~ 0(\ Sr+f!. 0...'\ ?-r H~. -rD."n~(" ~l'\cA G-~rnt1 p~e.Il-t '~u G.OlIect ~G\Mple~. ~pth +0 L..:JCA.ter \NG\...~ 5£ 2-,0. S,,\l'V\ p\~ were b"" lea '\ +-Ot~3 _ L.efr $.;+(. 0..1'" 0725 '--_______ ----JIDo not touch this cell (SheetNamc) White Mesa Mill Field Oata Worksheet for Groundwater Mill -Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan (QAP) Date: 03/22/2010 Rev. 6 Attachment 1 b~ See instruction Location (well name):L-ll_W_L'_~_2_t.._' ________ ---1 Sampler Name and initials: f1!.nntr F/fdl,'J"'!1/T1t Date and Time for Purgind '~l b/ £)..b J I Well Purging Equip Used: [![]pump o@ bailer Sampling Event 1 Q",(A(,+Grl~ G h I orAr M pH Buffer 7.0 7,0 Specific ConductanceL.-1 _q _"~~ __ ---,I ~MHOS/ cm Depth to Water Before Purgin~ 55.3\ Conductance (avg) 947 ~ and Sampling (if different) 1 ~J 7/.2011 Well Pump (if other than Bennet) 16-r\AYI/lPa...S I ~vJy-O~ Prevo Well Sampled in Sampling Event L-_______ ----I pH Buffer 4.0 \.\.0 Well Depth(O.Olft): I 11~ .5"D Casing Volume (V) 4" well:1 37·3Y 1(·653h) 3" Well: t) (.367h) '--------' pH of Water (avg) b·'1 L--_~ _________ ~ Well Water Temp. (avg) I 1 q .S:) Redox Potential (Eh)1 ~h8 TurbiditYL-1 1_L_3 __ --' Weather Condo Time \C>D\ Gal. Purged L-I _bfc __ ---' Conductance 1 ~ 9 bS Temp.oC Redox Potential Eh (mV) a....;;1 ~_b~ __ ---I Turbidity (NTU) I 1 \. J Time 1 1D05 Gal. Purged IL.....J.IR.,k':.8 __ --' Conductance q~ go Temp.oC I J L\,5S Redox PotentialEh (mV) I ~,~ Turbidity (NTU) I )J ,4 White Mesa Mill Field Data WorkSheet for Groundwater Ext'l Amb. Temp. O( (prior sampling event)l -'10 Time 1 100~ Gal. Purged ..... 1 7.:.-1~_---, Conductance 1 "J~18 pH I b-f(J Temp.oC Redox Potential Eh (mV) L-12--.;;.....G=~_----' Turbidity (NTU) Time ..... l l.;...D_O...:.,Lf _----' Conductance I 4 ~ ~ Gal. Purged L-I -..I:1...L.9 __ --' pH 1£-80 Temp. °C I )4.~:; Redox Potential Eh (mV) I ~6g Turbidity (NTU) I l}'S 1 of 2 Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) Volume of Water Purged L-I _tl.-;...q...:....-___ ........ Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = I ib , " 1 \ gallon(s) Time to evacuate two casing volumes (2V) T=2V/Q= I '.:"11 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 LabfL.._M_Y._'4-____ ~--....I Sample Taken Sample Vol (indicate Filtered Preservative Preservative Type of Sample if other than as y N specified below) VOCs ~ 0 3x40 ml Nutrients 0 0 100ml Heavy Metals 0 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 ~ H2SO4 0 HN03 0 No Preserv. 0 HN03 0 0 If preservative is used, specify Type and Quantity of Preservative: I:i See instruction ~ Arri\Jel on 5i-te ad' o'f~, ~n"r MJ. ~.,.,r;" F,..e.s~Tlt -to,.. p'-lr{\e-Purfle be<1",n <>0.1-" O"lSS. f' v-,..~e,C} ~ well +Or av .to+.x.1 ot' q yn/n",;-c::s. w"Jcr w"-$. MOS~ Gi<Ar thr,,~h6~ pv.r~e.. 'P\I\r~G .::nJ.eA J-ID01\. O-eptlr. +0 W,J--U-Wa-S ~1.'3'1. L e~-\-SIt-.:, ~ \Oog. A('r;\}~ on ~/+C. <1-.+ }254. -rlf<tI"'~r' if\nA. G#..ff"",'n prt!sen+ 70 Gl>lk.Gt S~Mrl-e..5. \ D-epth ~o ~~+cr wu 5~ . ..:4S, S~rY\ple-J U)~,..~ b",;JeJ ~ 13 03. L~-A-.si-f~ 0..:1-}30S 1...-________ ........ IDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 0 0 0 2of2 Mill-Groundwater Discharge Permit " -") .. Groundwater Monitoring Qualitv Assurance Plan {ClAP) .J Date: 03/22/2010 Rev. 6 . . ATTACHMENT 1 IOEN'so , .' ~~i \VHITE MESA URANIU!d MILL :~L;.~'!!!.NI~.u.~.~.~~." FIELD DATA WORKSHEET FOR GROUND 'VATER Attachment I Description of Sampling Event: I "-tl " GN..o...("'h~1' Gh lor 0+0("", :to I' I Location (well name ):1 'lW y . a.E. ] ::f~~~~me ["1:~t1~r J.1~1 L:;t..:vnr-'" ':J Date and Time for Purgj.n~ llZ l ~/:lcn 1 and Sampling (if different) I LII)5jZtJll Well Purging Equip Used:llSllpump o@ bailer . \Vell Pump (if other than Bennet) .. . Sampling Event IQ",o-r--\-ul,:; Gh \orofc>(;J Prevo Well Sampled in Sampling Event 1-rw4 . .:2;3 pH Buffer 7.0 -',0 Specific Conductance ,,-I _'l:-<1:...,ji1 ___ ..... 1 flMHOSl em Depth to Water Before Pllrgin~ 4 b . bS· Conductance (avg) L ___ .---::~:;,;;;;· ~;..:.5_':-Z ____ --.l pH Buffer 4.0 [~ .4 .,0 Well Depth(O.Olft): I \~~L~o Casing Volume (V) pH of Water (avg) 4" weu:I:.~i .3~ 1(·653h) 3tf Well: 0 (.367h) r.-..:.-.._---' J Well Water Temp. (avg) I \,=\ t bg Redox Potential (Eh) ___ 1 y.....z..=15;-.·_......;.....: TUIbiditya..;.ll.;;..~.;.;..;;.O~_ ..... ] Ext'l Amb. Temp. "e (prior sampling event)1 '0 ] Time I ISOb Conductance . .1·... GaL Purged 1 .......... '1q"'--_--' I I .~q'j '~:] pH L~_.~.:·:,":.~J rn~g 'l Redox Potential Eh (m V) I .~YJg:::. :J Turbidity (NTU) I tl .. '1 I Time I}SOf( Gal. Purged I rQ"i I Conductance I ~9Sq I pH ;~=~==] Temp.9C f l~l'~ I Redox Potential Eh (mV) [yj5 ~J Turbidity (NTU) V·.'hite Mesa Mil! field Oata Worksheet tor Groundwater Time t5D7 Conductance Temp.oC I GaL Purged IL.-~_H)_' _--0....1. I [~~~5IJ pH I '·92 I ~.": 19 ~::~.K:.·_c ·i Redox Potential Eh (mV) Q3rim .. ::~] Turbidity (NTU) I 1'3 .0 I Time I 15ct\ '. I GaL Purged l.....1 !_~_.~~ _____ Conductance [.:l:15Q-:1 pH C,' ::9Z~.::':::] Temp. °C CII;j:_,~K:J Redox Potentia) Eh (m V) I 9 13 Turbidity (NTU) Mill • GrolJndwater Discharge Permit ....... , , _.1' ,--) Date: 03/22/2010 Rev. 6 • Groundwater Monitoring Quality Assurance Ptan (QAP) ~ Volume of Water Purged '-1 ........... J3;",,;~..;;:.... __ --' gallon(s) Pumping Rate Calculation Flow Rate (Q)~ in gpm. Time to evacuate two casing volumes (2V) S/60 ~ I 11 -I T = 2V/Q = I to.j L. I Number of casing volumes evacuated (if other than two) If well evacuated to dryness:t number of gallons evacuated -I Name of Certified Analytical Laboratory if Other Than Energy Lahti--_tV:_ip,. ..... · -_' ____ --.;...----1'1 Type of Sample Sample Vol (indicate Sample Taken if other than as Y N specified below) VOCs Nutrients Heavy Metals AH Other Non Radiologies Gross Alpha Other (specify) Filtered Y N Preservative Type ,Preservative Added Y N If preservative is used, specifY Type and Quantity of Preservative: ~Comrncnt l~ See instruction Arr;~eb.. or'S 1t~.J-. \ "\!i3. ~1\"~rt<l\J..~(':; 1\ p~5."~f'<'lr T'\).r~c .. ?1.A~e~~QjI 0.+ 11.\51 . Pv.ffjeA v.'lell ~r;' t-e1-,,-1 "r;: 1;1, M:ni-ltcs. v.)t>..+er ~Chr~"'~hO\,\!th.,pw~e . ?W'~e en4ftA ",1" 15"'1 . De.pthtb \01h~C( ~ E, 'I. 41 • L e. q-::, I+e. .0-1514 . ... . . Sa,lilfl .... cH f020. DrpW-1a ~r t/t.t.(, jat~ /'e~Sa;"'i1/~. 'tift" pAlvVt/ /,'JeWt .f~r S~u'Y'~ . '--________ , .... IDo not touch this cell (SheetName) White Mesa Mil! Field Data Worksheet for Groundwater A 2of2 capt urx' COMI',lTliHE WITH~t ... ,.;,~ fUN(TlONAU TY Mill ~ ~roundwater Discharge Permit j") -Groundwater Monitormg Quality Assurance Plan (CAP} ,.i D(3te: 03/22/2010 Rev. 6 ; , " A TT ACH1\fENT 1 ~ t)ENISONi):JA i \VHITE l\IESA URANIUl\l ~nLL ~,~t.....,,(!'Jt.!!!_,~ .... _J FIELD DATA 'VORKSHEET FOR GROUND 'VATER Description ofSampJing Event: 14Th Gv.o..rfo-Gh loratcrh"l , 2..01\ Attachment 1 f:~ Sc:c instruction J Sampler Name and initials: I~nnt:.r 'Hol ll ~t;j litt' Location (well name ):f,-_T,,-\~tJ' Y....:...--..;:;2...;;;,1.o,;:;;.· ______ --' Date and Time for Purgind 1 \ / L2/~OJ I and Sampling (if different) II if IbZ~O l/' ' Well Purging Equip Used: [[]pump o@ bailer Well Pump (if other than Bennet) I &rufld·£6S ==:J Sampling Event I Qv.."r·t~(k1 ~blQrQ'&(~ Prev. Well Sampled in Sampling Event 1 ""-\,JH '~;l. y • J pH Buffer 7.0 1-; 7 ,0 ' I pH Buffer 4.0 ] Specific Conductancct-I_4J-1Q....,,:i __ -..;' . .....IIJ.lMHOSJ em Well Dcpth(O.Olft): I u.06 ' Depth to Water Before Purgin~ £3.87 , J Casing Volwne (V) 4" well:I IY ,1.j5 .1(.653h) 3" Well:. 0 .(.367h) Conductance (avg) ,-5"';'.';-='o&.::t{,,;;,O::::ll~_' ____ -..II pH of Water (avg) ,4.Q.O Redox Potential (Eh),-I_~~'8 ____ 1 Turbidityl ....... Cf...:,..·.-.0_· ____. ..... : '1 Weather Cond. I J)c;.rl{j 'C!DUa '} _ d I Ext'l Amb. Temp. "c {prior sampling event)1 :'3'" ':1 Time I 0'1 1:1. ".' I Gal. Purged I j,' -.' .. 1 Time I: '. "I Gal. Purged I ' :'1 Conductance [~~~QD pH I 4 .~() . ' .1 Conductance ..... 1:' ...... ' _~....-.....I I pHI I Temp.9C I r3>.'lO ·, . I Temp. 'oC E~..:.....-..;.., ,I Redox Potential Eh (mV) 150~." J Redox Potential Eh (mV) I I Turbidity (NTU) Turbidity (NTU) I ,I Time 1 ..... __ --:-;....1 Gal. Purged ,-I ______ ___ I Time I -] Gal. PurgedC 1....;..;.' ,',_ •• _ .......... -a Conductance :L..,.I ..... _____ ' ........ J pH ,-I ___ ...I :J Conductance I pH,-I ___ .....I Temp.oC " I Temp. QC I . ,I Redox Potential Eh (mV) ..... 1 """"-__ ...... Redox Potential Eh (m V)[ .... ___ --' Turbidity (NTU) Turbidity (NTU) White Mesa Mill Fietd Oata Worksheet for Groundwater Mil! • Groundwater Discharge Permit ._-) ~ Groundwater Monitoring Quality Assurance Plan (CAP) Volume of Water Purged I.-._):.,..! ___ ---' gallon(s} Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 == Ir.-..;...;H~_-.I Time to evacuate two casing volumes (2V) T=2V/Q= I :l.'2 I Number of casing volumes evacuated (if other than two) I .1b If wen evacuated to dryness, number of gal10ns evacuated I 1 , Name of Certified Analytical Laboratory if Otber Than Energy Lab~,,"--, .v_I._;ti~. _____ ---' Type of Sample Sample Vol (indicate Sample Taken if other than as Y N sped fied below) VOCs , ijI , -/0 -3x40 rnl Nutrients -.. I::i'f','; 'r • D " 100 nl '.' .. Lp,",::' ' .. :,' "" . I Heavy Metals All Other Non Radiologies :>, O. :::': ' ;.,: 0 .. ,.-250 ml Gross Alpha ._ .'0 , ' I.' ":'0 ,::.,. '1,000 ml Other (specify) -::', Bi:.: : ·',~.·d·" .' Sample volume " ~.' '.' < • . ~t : , Filtered Y N Preservati ve Type ;. '" :,0' ' .. ', J~; '. ; H2S04 .. ' D .,·,P '/ HN03 \"j',1' '/ ~ .:. i,J':" " : ,'. Pate: 03/22/2010 Rev. 6 Preservative Added Y N t:lI ' ';' .,,0 ,IE " .. : .0 .;' '·0 "0 ,' ",;0 ·.,0 '0 ''--0 ' :':' '.' b '~&J " If preservative is used, specity Type and Quantity of Preservative: :.; .;) See instruction ~Comment r: -: !+rr;\JeO. on s;t~ ti-t oq01. '~~"'f)er M'A b-o.('('I'1l fres.Cl+ ~r fv.r~~. 'P\Af'je. ~~ (.(+ D'il/ f "'r~d,. .well -\;'( 1 ",;nv<fc.. P""'~ed well a(~l, wC>.t"r we-!.. d-w.(" ~ p",('~.:: ended ",r-O'l/~: Left-s.tc Q.t o'1j5>. ' ': . . .- FI rr; \l e~ 0 II site; At 01 ;1.'\ \,,,, nn If "" IX lro..rt'in pre setrl-h, (.~ lied !>"~ f' le~, Depth to \,\)t\1t( ~~ b'3 .q~. s('\J'V'\pl~~~~fc. bG\\'\vl ~t 01'33 . L~t1-Site at" 07'U L..-.. ______ --:..---IIDo not touch this cell (SheetName) White Mesa Mill Field Oata Worksheet for Groundwater Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) ,_ .. _ ... _-_ ..... _ .. _._ .... __ .. _._._ .. _ ..... _ .. , I OENISOJ)~~1 ATTACHMENT 1 WHITE MESA URANIUM MILL Attachment 1 b(~ See instruction L. ___ ~!~ES ~. __ . _~__ FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: I yih Q~(Arte(" clfi IO,.or~("Wl .2011 f<-CS&fWlpJ, Sampler Name Location (well name):&-I _T_vJ_Y_~_:l_~ ________ ----, and initials: l::=ttl.f1n~r ~b I J,J~J~ Date and Time for Purginm 1~1 b/ P-D U and Sampling (if different) 1 12/1/ p"CJ J 1 Well Purging Equip Used: [![]pump or@] bailer Well Pump (if other than Bennet) I (;-( IAn if ~ .s Sampling Event I QI.A.~(f~dj Ghl()f'b+o("rl\ Prevo Well Sampled in Sampling Event I"lW 4 -:J.. L{ pH Buffer 7.0 " () pH Buffer 4.0 Specific Conductance .... I_Q_l{_1 ___ ----'I IlMHOSI cm Well Depth(O.Olft): I gb,DO Depth to Water Before Purgind b3.18 4" well:l ) Y :31 I (.653h) 3" Well: 0 (.367h) L..-___ .....I Casing Volume (V) Conductance (avg) pH of Water (avg) Well Water Temp. (avg) I 1~-7b Redox Potential (Eh) 1 ..... '-l...;..:g:....:::1 __ .....1 Turbidity ..... 1 ..;...;J.5;;;;..J}i...--_.....I Weather Condo l __ t ___ ~.iIooooI-_______ ....... . :>\AnnJ.j Time 1,0'-10£ Conductance Temp.oC Gal. Purged 10-1 _'_I __ .....I 1 6~3 , ):;r. I C. Redox Potential Eh (mV) ,--I _q_89 ____ ....... Turbidity (NTU) , IS\ Time Gal. Purged &-1 ___ ----' Conductance pH 1 ..... ___ .....1 Temp.oC Redox Potential Eh (mV) &-, ___ ----' Turbidity (NTU) White Mesa Mill . Field Data Worksheet for Groundwater Ext'l Amb. Temp. O( (prior sampling event)1 .... go Time Gal. Purged ..... 1 ___ .....I Conductance pH ,--I __ ----' Temp.oC Redox Potential Eh (m V)l ..... ___ ----' Turbidity (NTU) Time Gal. Purged ..... 1 ___ ----' Conductance pH Io-I ___ .....I Temp.oC Redox Potential Eh (m V) ,&-___ ----' Turbidity (NTU) 1 of 2 Mill -Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plan (QAP) V olume of Water Purged .... 1 ---::1....L.1 ___ -----I gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = L....-1 _\.;...-.1_----1 Time to evacuate two casing volumes (2V) T=2V/Q= I ~.bl I Number of casing volumes evacuated (if other than two) I Q·7b If well evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if Other Than Energy Labf .... _M_~_~ ______ ----I Sample Taken Sample Vol (indicate Filtered Preservati ve Type of Sample if other than as y N specified below) y N Type VOCs ~ 0 3x40 ml 0 ~ HCL Nutrients 0 0 100ml 0 0 H2SO4 Heavy Metals 0 0 250ml 0 0 HN03 All Other Non Radiologics 0 0 250ml 0 0 No Preserv. Gross Alpha 0 0 1,000 ml 0 0 HN03 Other (specify) 0 0 Sample volume 0 0 Date: 03/22/2010 Rev. 6 Preservative Added y N ~ 0 0 0 0 0 0 0 0 0 0 0 If preservative is used, specify Type and Quantity of Preservative: Comment ~ See instruction A 1'"('; "~d 011 $;4-<. ~1 lct1\. ~hf\~(, <>..nJ. G-o .. :rf'lfl, ?re.~U'f +0 fV.t"Z\~ wet I. P v.("~e b ~O\,I'\ .J-1 DL.\ S -1" \J\ < ~ d.. w ~ \l for 0..-hi-oj 0 P \ WI; n ~·c 'P,:~e<l well art-w~r "'-'1>-5 "-' \:Uk M ... rk~. P\M'6e. at.,!t,! 0..11-10'1(.. le~ sit<. J-/CJS({ Arr;vea 01\ ~/+t= 0..1 I'SD'\ .-r;;:nt\~(' (A(\A. 6-6.rr;~ pre~~vJ" to c.ollel..} 5AMfles. De 1'+1.. --10 v:J o..-t(r vJ ~ '" :3 .85 _ 5/J.1"1pk5 vJere. b.,.; ka ... f 1 :313 -le-tt SJf-e J ms L--________ ...... IDo not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater .' 2of2 Mill· Groundwater Di5charge Permit ;" .'''~\ '" t Date; 03/22/2010 Rev. 6 "'-Groundwater Monitoring Quality Assurance Plan (QAP) ~' ATTACHMENT I \VHITE l\-IESA URANIUM l\ULL Attaclunent I ",hi Sct: in'!ltruction FIELD DATA WORKSHEET FOR GROUND WATER Location (weB name ):I.-[ '.....Jli.....:W:....:::-,':\..1-· -...;.,l' ~ioI:.:' D~ __________ --' Sampler Name and initials: 1 ~l\ne(" H(i il;J~; lTtt Date and Ti me for Purgin~ I \ I I i l;z..o i \ and Sampling (if different) _I __ M_,:i;_r~_' __________ ' I Well Purging Equip Used: [gJpump o@ bailer Well Pump (if other than Bennet) L-I ;M ..... , _yA _______ ~._I1 1 ·-r~4 -Ili 'I Prevo Wen Sampled in Sampling Event '-____ ~ __ __'. pH Buffer 7.01 II-__ I.;..... C~ ___ :' J pH Buffer 4.0 Specific ConductanceI.-I _9.Ll~~s __ TIJlMnOS; em Well Depth(O.Olft): .1_0_, _~_....I Depth to Water Before PurgingJ ..... _, ·,_D __ ---' Casing Volmne (V) 411 well:~~ _D ___ ....... IC.653h) 3" Well:.·O _ (.367h) Conductance (avg) I a... _' ....;:O=-' ·..:::g:...·_~ ___ "...I1 pH of Water (avg) ...... 1, _7._~'~_' -_______ ;-..1» Well Water Temp. (avg) I ,-1.'&3 Redox Potential (Eh )_I ..... ~ ..... 7 ...... 4_--iO Turbidity_l_o_' _ __'"__ Weather Condo ExtJI Am b. Temp. °C (prior sampling event)1 ~i ~ .. '1 Gal. Purged 1 ..... ,.· _____ .... ·1 Time Gal. Purged ..... 1 ,_:' ___ ' ....... ) Conductance I I.,;., ...;O_~..;;;.8_-'-;".......I1 Conductance 'I pH 1",--': ---,---,-'--0" '1 Temp.oC I Redox Potential Eh (mV) 1 ...... ~ ..... '!7_· ~-"'--_-.# Redox Potential Eh (mV) 1 ..... ,,_, ___ '_J Turbidity (NTIJ) I e : . ,'."' .. '" Tur~idity (NTU) , .... J Time ... 1 ___ --' Gal. Purged ..... 1 ___ ' -..I', J Time ,.,. '1 Gal. Purged I........... __ ~ Conductance .... I ___ .;.....JI pH r....1 __ ----' Conductance III-: ___ ..... 1 pH 1_,' ___ ..... Temp.OC ,-1 ___ '--,1 Temp.oC '1 Redox Potential Eh (m V) ',-' _-:""'_-..J. Redox Potential Eh (m V) .... 1 ___ --' Turbidity (NTU) Turbidity (NTU) White Mesa Mill Field Data Worksheet for Groundwater ~") Date; 03/22/2010 Rev. 6 Milt • Groundwater Discharge Permit ' '-) • Groundwater Monjtoring Quality Assurance Ptan (OAP) 5 ~ .. - '" Volume of Water Purged 1 ..... __ 0_" __ ----" gallon(s) Pumping Rate Calculation Flow Rate (Qt in gpm. S/60 = L_' ...... .0 __ ......., Time to evacuate two casing volumes (2V) T=2V/Q= I 0 ] Number of casing volumes evacuated (if other than two) If wen evacuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory jf Other Than Energy Lab~L..._' ..:..M.;;.:V.~It _____ '"--" Type of Sample S 1 T k Sample Vol (indicate amp e a en if other than as Y N specified below) VOCs Nutrients Heavy Metals All Other Non Radiologies Gross Alpha Other (specify) ConU'l1cnt Filtered Y N Preservative Type Preservative Added Y N . '0 "~'$.': HCL ,.,:el:', '0 , .. '-:p .:,>, 0', ~.D-,,':., HNQ3 .. C,,:. _.:' .,:;"'", r;J ';.': ':,,$L··:'i- ';" ,. ' .. If preservative is used. specify Type and Quantity of Preservative: ." '~.:~ See instruction j.4~ Arr ~vct\ 'f\ Lxb -<At O~ 1 S -(()J'\ncr' o.ncl " c;..wr;I1f.~~~e,,,l , +~ c~U t:,,{-D :r5A."1 rJc;.. Sc\Mpi~' \t?~ ·i.oH~GtecA, ~+-O'g;>D',., Le1=i-'l-CA-b ';4,05~3 , I : '---_______ ---aIDo not touch this cell (ShcetName) Whne: Mesa Mill Field Data Worksheet for Groundwater Mill -Groundwater Discharge Permit Date: 03/22/2010 Rev. 6 Groundwater Monitoring Quality Assurance Plan (QAP) r·-·--------· -_._-----.--_ .. --.. -------. -----1 lloENIS.OJ)j~1 ATTACHMENT 1 WHITE MESA URANIUM MILL Attachment 1 ~ See instruction ,..-.-..' ~!N.ES ~ ___ ...., FIELD DATA WORKSHEET FOR GROUND WATER Description of Sampling Event: 1 q Th Q V\.a..-r+e-r Gh lor b-Po rtvl :;1..011 RGS ~MP k Location (well name):I ..... 'l_W_LJ_-_b_D ________ ---I Sampler Name and initials: Ilo..1\1'\e..<" f'l 0 ) 11'I~ /Tl:! Date and Time for Purginm 1:;2.../87 g,.oq and Sampling (if different) d/A ~--------~ Well Purging Equip Used: 1 f!1 Ipump o@ bailer pH Buffer 7.0 7.0 Specific Conductance ..... 1 _'1_9_q ___ ---I1 !-lMHOS/ cm Depth to Water Before Purgin~L__O ___ ....J Conductance (avg) o.~ Well Pump (if other than Bennet) Prevo Well Sampled in Sampling Event I -rW'-l-2.1 pH Buffer 4.0 y.o Well Depth(O.Olft): ..... 1 _0 ____ ...... Casing Volume (V) pH of Water (avg) 4" well:~_O __ ~I (.653h) 3" Well:. 0 . (.367h) Well Water Temp. (avg) \'3,11 Redox Potential (Eh) 1 30 l6 Turbidity 1 1 .. 5 Weather Condo Ext'l Amb. Temp. O( (prior sampling event)1 ~Do Time I 080~ Gal. Purged I'---__ -....J Time Gal. Purged ..... 1 ___ ....J Conductance O.g pH 1 ~.c9..6 Conductance pH ...... I __ --' Temp.oC 13 .1 "J Temp.oC Redox Potential Eh (mV) I 30g Redox Potential Eh (mV) 10....-___ ..... Turbidity (NTU) Turbidity (NTU) Time Gal. Purged L_I ___ ---I Time Gal. Purged 10....-___ ..... Conductance pH ..... I ___ ...... Conductance pH ..... I ___ ....J Temp.oC Temp.oC Redox Potential Eh (m V) ..... 1 ___ ----' Redox Potential Eh (m V) ..... 1 ___ -"""" Turbidity (NTU) Turbidity (NTU) 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 1-1 __ "O ___ ---J gallon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. Time to evacuate two casing volumes (2V) S/60 = 1 b T=2V/Q= 1 0 I 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 Labf ..... _~_~_A--"--______ ..... 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 3x40 ml 0 00 HCL 19 Nutrients 0 0 100ml 0 0 H2SO4 0 Heavy Metals 0 0 250 ml 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: Comment ~ See instruction A(('ive~ on ~itG 0..+ O~03. -lo..nf\'C.r o..n~ G6\,f'r,'f1 pre..set1+ +0 ,-,,)1e.c.1-..s"'l'l1p1e.s, SA.V"\ple.s (.o\\e.G+ed. ""t 08'10. lG+t-Lo..b tA..+ og'J~. D~ L....-________ .... 1Do not touch this cell (SheetName) White Mesa Mill Field Data Worksheet for Groundwater N 0 0 0 0 0 0 2of2 Mill ~ Groundwater Discharge Permit Date: 03/2212010 Rev, 6 'Groundwater Monitoring Quality Assurance Plan (ClAP) I " :. ' ,I ATTACHiVlENT I [ n i \VHITE ,MKSA URANIU1\,Il\YIILL Attachment t ::~~~ FIELD DATA \VORKSHEET FOR GROUND \VATER Description of Sampling Event: { t.iTl"\ QV\O--l+ec-. C-hlCf"of'biM ~o, I See instruction Location {well name):1 T~4 -bS ] ;::~~~~~me [~ Dale and Time for Purgin~,-· '\/llj·/ioll and Sampling (if different) Wen Purging Equip Used: to r pump o@ bailer \Vel1 Pump (if other than Bennet) Prev. Well Sampled in Sampling Event r TII-lY -03 ~ .... pH Buffer 4.0 I·' ·.t·r~6 'I Specific Conductancel -gq~ -, ., jlMHOS/ em Well Depth(O.OI ft): 1,'iY I. DC ':1 Casing Volume (V) 4" well:1 '5"1. ~~·I(·653h). 3" Well: :'." 0 :.. . (.367h) Conductance (avg) 1>":1914 ··' " I pH of Water (avg) .. :: .. ·1 Well Water Temp. (avg) I J3_'l~:" : '·1 Redox Potential (Eh) Ir.-' ·....:,4--.'19 ...... ·· _...o-...t·1 Weather Condo .. ···.1 Time I ' ,. ·.1 Gal.' Pun~cd . L .. _. __ "_. ' .. _,.". 1. r-. ...... __ ---oi. ..... _ • C ollductance 1&......,.·., .0...-.• ' -: ........ ", ',""",--""",,,' I pH t ......... >,;,.-.' '., ~_ .. _'1. Temp. PC (';' ..J Redox Potential Eh(mV) ~I·;,;.... :~~_,,,,,,,,,'I Turbidity (NTU) I, . , I Tune I~'_· ___ .... Gal. Purged _1_' ___ "1 Conductance I~ ____ ~I pH~I' ____ ~1 Temp.1.'C ,. : Redox Potential Eh (m V) ,'--___ --' Turbidity (NllJ) White Mesa Mill Field Data Worksheet for Groundwater Ext'l Amb. Temp. "c (prior sampling event) I 30 .... Time 1_:·....... _____ ., -..II' I Gal. Purged 11-·.''';';''\ _. '_" ~ ........ f Conductance III""..,N·· ___ :--.' ........ '··1 pHII.-.. __ ... ......:...J< I Temp.oC I Redox Potential Eh (mY) _I. _' . __ ., _<;'-.ll Turbidity (NTU) I': , '1 Time 1-... '. ',:' ., I GaL Purged 1....1 ..;...;..;... __ ..... ·1 Conductance L.I .,;,.;.' _. ______ I pH , ..... ___ _ Temp.oC " Redox Potential Eh (m V) ,-I _________ --' Turbidity (NTU) A 10f2 ·capturx· (OMI'ATtOU WIT~~l ..... .::·ri;--fUNCTlONAtITY Mill· Groundwater Discharge Permit ') Date: 03f;l212010 Rev. f) <;roundwater Monitoring Quality Assurance Plan (QAP) Volume ofWaler Purged ..... 1 ~p_o ___ --.I gaUon(s) Pumping Rate Calculation Flow Rate (Q), in gpm. S/60 = fl.-_.:i..I..l1 __ --II Time to evacuate two casing volumes (2V) \0 T = 2V/Q = I \ I. ~7 J Number of casing volumes evacuated (if other than two) 1 ,~3 If well evacuated to dryness. number of gallons evacuated [no Name of Certified Analytical Laboratory if Other Than Energy LabfL..-_.tt/,_'1_Pr _____ ---' Sample Taken Sample Vol (indicate Type of Sample if other than as y N specified below) VOCs Br -0 -3x40 ml Nutrients ~ '0 -100 ml Heavy Metals '-0 '"· _:.,0 ,'._ 250ml All Other Non Radiologics -D ,0 ,; .. 250ml Gross Alpha ',;-0 ··:0 1,000 ml Other (specify) ~ 0 .. Sample volume Ch \or~JL f fCommcnt '--___________ 100 not touch this cell (SheetName) Whit~ Mesa Mill Field Data Worksheet for Groundwater Filtered Y N 0 --q1 0 fPI, O· Q D ', D _·<O ~·, -'0 :' .. 0 {bI . , Preservative Preservative Type Added Y HeL ~ H2SO4 III HN03 .,'0 - No Prcserv. :0 - RN03 -0 0 If preservative is used, specify Type and Qmmtity of Preservative: See instruction !"Ii? N 0 0 0 0 '.0 JKJ " Mill • Groundwater Discharge Permit .~) " Groundwater Monitoring Quality Assurance Plan {CAP} ) Date: 03/22/2010 Rev. 6 jOENISOJ)lAi ATTACHl\'lENT I \VHITE l\[ESA URANIUM MILL Attachment 1 ')i(~ MINES _ ; FIELD DATA \VORKSHEET FOR GROUND \VATER ~'"&.U_~~~-*k~~,.;rl Description of Sampling Event: I 4'Th Qu..tA.<+e(' C.h Icrotorm ~o i I I Location (well name):I,---T.;...W~4~-...,.I.1~C ________ ~ Sampler Name _ __ __ _ ___ _ and initials: [:r~~~2 H;lId0.!1LTlt =_-:--_:J Date and Time for Purgin~:: I l /l~ /:;"'01 ) and Sampling (if different)C1iZI~I~: --->:~~ Wen Purging Equip Used:l]!]pump o@ bailer Wel1 Pump (if other than Bennet) I,-f:rr-v.n~~f.~,;~ __ :-"=:J Sampling Event IQv",,-r >te.d !:) c..hl orohtcM Prevo Well Sampled ill Sampling Event I 'i\.}L\ ~ C5 pH Buffer 7.0 _I _1 ...... ...;::0 _____ ...." pH Buffer 4.0 I 4.0 ] Specific Conduetanee,,-I __ q:.....~-+~_...;.....-_-""I ~MHOSI em Well Depth(O.Olft): 147,' .50 Depth to Water Before Purgin~ ']0,g..0 Casing Volwne (V) ;:: ::::l :a:~>:=1~ :~~~:~ Conductance (avg) pH of Water (avg) Well Water Temp. (avg) t}l.).t.5-~:_1 Redox Potential (Eh}f ' .... HVS -Turbidityl .... __ ~_c_' t_-II WeatherCond. I Pwtt1 C10\A~~ Time 10-1-___ ~ Gal. Purged ,-I_~_ .... Conductance . -I pH ....... I __ ......,,·1 Temp. ~C Redox Potential Eh (mY) .... 1 ~ __ .... -I Turbidity (NTU) Gal. Purged ..... 1 ___ .....J pH ..... I ___ --' White Mesa Mill Field Data Worksheet for Groundwater Ext'! Amb. Temp. °C (prior sampling event)I __ '_o __ Time Gal. Purged ',--I . __ -.....1.1 Conductance 11.-·.;.... __ --' pH !..-, __ ---' Temp.oC IL--~ ____ .....I Redox Potentia) Eh (mV) .... 1 =_-__ -' Turbidity (NTU) 1-' I Time Gal. Purged 10-1 ___ .....I Conductance pH 10-1 ______ ..... Temp.oC ] Redox Potential Eh (m V) Ir..--___ .... Turbidity (NTU) ~ 1 of2 -captu rx' COMPATI9lE WITH /,,"-,-... ~.:-• ..p.-FlJNCTIONAlIT'V Mill-Groundwater Discharge Permit Date: 03/22/2010 Hev. G • Groundwater Monitoring Quality Assurance PlanlQAP) . Volume of Water Purged 1-1 ---:;66~ ____ ...I gallon(s} Pumping Rate Calculation Flow Rate (Q), in gpm. S/60; I ' H Time to evacuate hvo casing volumes (2V) T=2V/Q= I 3 .. ~4 I Number of casing volumes evacuated (if other than two) If well evacuated to dryness, number of gallons evacuated r.~,,:.in:~:J I ~· "I Name of Certified Analytical Laboratory if Other Than Energy Lab{_,,,,,,";;;~/J~i\..;... _____ -..1:-1 Type of Sample Sample Taken Y N VOCs Nutrients Heavy Metals AU Other Non Radiologies Gross Alpha Other ( specify) ~ ;. ;~Comment .- !. > ........... _______ ---IIDo not touch this cell (SheetName) Whlte Mesa Mill field Data Worksheet for Groundwater Filtered Preservative Type HCL: Preservative Added If preserva6ve is used, specifY Type and Quantity of Presernltive: See instruction TabC Weekly and Monthly Depth to Water Data ,0 0 h q{ lb. ) Date a:r < ~ dell! Time Well 1\1~ ~ MW-4 ~ () 7-'} tf MW-26 ~j516 TW4-19 1\ 72 () TW4-20 1J14£., TW4-4 Water: 5~O 741 2~9 ~(PO Depth to Water Name 11M Id, ... q,. Depth Comments :;O~ --::J2 Flow ,/t; t, &Pffl Meter hlJ 1/ 1. ,>h., ;2 {,O, &, ~ Flow 7.. / blf'1 Meter /2 'I/'?/~ ~ 111-'>1 ~ ...> Lo~ 11 Flow /'1. if {~I't?1 I L Meter 725 7~ 6"0 ~ o\a ~rL tIN Jt~ ~011p 'L"i ~ ~ hi,. 7f Flow j{).,2 0t'M Meter k~Jqq_71i" J... t gt'_C;S-Flow t:t" 'I l,Prr'\ Meter <5 2t:r7 ()(] 0 / ;;, Jg£, 89 .... c" -0 c"z.-0 C3# (; '7t1Q/11 t ff SL4~5 " Date /~ p 1/ v tdl/ Time Well /1 ~,1 MW-4 /:<.3S-MW-26 r~oJ-TW4-19 Ll;3() TW4-20 iJ'i1I TW4-4 ... ...... f' ~ U~ jl{~ . t;,~ ~ !t~j Water: Depth to Water Name ~ %;lI1rd. DeDth Comments 7J~ lL Flow l/~h j~11Y\ ,- Meter h/.J 1/L/~ h ib/;. kD Flow 5.t kflYl Un'lf\ I).j)~ t Meter it3114£.2 I \ ItJ{k~ PaM~ tJ.AtJN J!t(fV.4 L 7iu 5'3 Flow' . ~cj L/ &f'¥l lu~t',;t'; M/¥ kr,~.f(; Meter Irlt.S("JL q , I I , 6 l/~ 'J C; Flow I ~ 2 hlJ1t Meter 32t~gs: 2 ;;'1. If Flow / f),? IdlrY! ( Meter 55, 5{ ~ 1., X JA~ /Jt;.~. i1kM V /)~fAW lAId! Ii j l:'~ .i iL~'/' 1<).dJW JI~I"",t.. PtA~~;tJII'J. i & A -j~MIL ~ aM.. . u {/ tJ1)2il '0 o o Date /d · / 1· TCJ II Time Well /3L/~ MW-4 1?31 MW-26 /¥26 TW4-19 15.'3'1 TW4-20 L3S/ TW4-4 Water: Depth to Water J2 ! Name ~jIl li/nertr DeDth Comments -:; 9, eft? Flow i./S bffl1 Meter ~/ <Y06% Lj .15 ;2, 17 A-vlvA ( '73,22 Flow 5 7 hfll1 Meter / sst) 4. 9 I ~()~ rt Flow 12. lr f:;frn ( Meter #179..2. t hOI, / f Flow /IJ~ t tfJm Meter 33/3/ Y. t, 7-[5, zt Flow 1/ S hfJ;r.. Meter, c:; L/"L~2S: & ; Ii:n#~ #. , . <;/Jt~II-/ iJJ ~ /Jak ~ ;jr~ ~ Ild,ll-{) .q-I"II~ y; / "'" .L,... $.,.60 d;~ V' h11;;f~ (J Depth to Water Date 10 l;;.dd-.O II Time Well Depth Comments 1d-..S.5 MW-4 7J·80 Flow 4 .~ &PM Meter~~ b2~U3 .S4 J~Llct MW-26 IDb .D I Flow 6.~ (r-PM Meter lY:2333..24 1<;"':1 S TW4-19 hl~ LS Flow IL-L.~ AP~ Meter L-l2~ q O. yq t~v·t5 TW4-20 f:-d·'l4 Flow 10.5 C-Pt1\ o Meter ~37..S\7.~ 1.2.59 TW4-4 ~/1·70 Flow 10 ., ~PM Meter 5E,7/511.1 " ." Water: 11'5>071 o o Depth to Water Time Well Deoth Comments J250 MW-4 -10~ q"3 Flow L1.5 (~PM Meter ~ 3>;}D \<-1 ~5b )'J..~2> MW-26 10(...1.3; Flow 5.'1 Meter 14 7/50-1 8 j ~L1C1 TW4-19 7D.D' Flow '3,.5 ;:~PM Meter 5 ;75 rg,. qt J2.2'1 TW4-20 c;4 . .26 Flow f 0 . S '--P )V'\ o t Meter 3~2.~·7:J...5 J 11~q TW4-4 hCf go Flow tD q r; P)I\ Meter .5~l-i1 7 91 L}2 Water: 7/473b Depth to Water Date 11/7/ClDII Time Well Depth Comments 1:l.1S MW-4 70 .t45 Flow ~ d.-. 6-PM Meter ,-357(..3:;),,7 I~O'J MW-26 g} qa Flow b.3 G-PM Meter IS~gq5.;2.1 1'30b TW4-19 {t..\ sS Flow 1.2.0 G-Prv, Meter c;;z.g06.'J I;lD'-i TW4-20 bJ. i..I; Flow 10.'-( (rPM Meter 3Y78'b~.3g 'I;(~b TW4-4 fQ·Y5 Flow ICS &f'1V\ Meter .s7;,t'~y .J, ~ Water: 7;;1 . .0172.0 o o / o Date / / / / ¥jM/I Time Well IJI11 MW-4 //)h6 MW-26 J~tJ tJ TW4-19 , /d¥2 . TW4-20 l/ JI) TW4-4 Water: Depth to Water Name -r:;;;:, W'/C1f{f Deeth 60mments -A'A'/~-.t ~//r/---' ~ '70,17-Flow 3~/ 4r-'tr1 Meter (;; 'fsS1~" .2 f:;'7. h g' Flow '7 -.2 1.7frn. Meter /s$JDs.1 t'l,';--% Flow /.5. 1 L-:lI'J'V1 Meter 7'111 Ix. 9 g'l-. '1'-1 Flow IL1 bJ1r1 R;;t j) ~ GR 5 Meter 35S2S~ ~ ( h$~ 9~ Flow 1/ .. I {'lIm Meter ,-:;8 Y) 7 /?h __ ) 1 Lf1337 Date ". ZJ .. '2<>11 Time Well 1343. MW-4 J~5t:/ MW-26 ft..f~~ TW4-19 J :S5L1 TW4-20 I 13.37 TW4-4 Water: Depth to Water DeDth Comments 72 71 Flow 43 hP~ Meter h5 ~"~5 _~~ h2&D,t; Flow II Ll bi>A Meter 16cg~iC\~ t..15 ~g'. ~o Flow 1'-'1 6P~ Meter >55 2. 8'4 ._~.2. t{2.DO Flow 10 6i'M Meter .. '3.sgq~5.1~ 10 LID Flow " 1.. bPA Meter ~~ql~S 'SD 764 j 5b Depth to Water Date 1I/~~/"oll Name 1'an t'\ < r Jl. /1;,'1 Time Well Depth Comments Og3' MW-4 il.SO Flow Lot.3 G-PM Meter 65''1 J Ls" O~~ MW-26 b'\. \0 Flow \a.. () c;.PM Meter I,~~~~~g o~'5:3. TW4-19 Sg·55 Flow 1"1. \ G-PM Meter '15't9~."33 O~~ TW4-20 b3.~ Flow }o . .5 6-PM ·0 Meter :3''i13'LS4 O~'i~ TW4-4 ,tt.S 7 Flow J~.O Meter 51b(,L)3.5 Water: :;glt,2% . o Date 1~1/5 !?..O iI Time Well (~&)3 MW-4 i'~)'Ci MW-26 1\...:17 ' TW4-19 r;t6 TW4-20 r:;-)h TW4-4 Water: Depth to Water Depth -1) .' Cit G'1.5~ S~.bb £0 OS b~,~}Gi go 7oq'-l ---Name } {\110(r Comments Flow 4.i 6-p,V\ Meter t;t:,£ ___ ~~7's " 'tb Flow .. .., ... J"",,'V Meter I LS~,\q 1.,20 Flow I~.o &?M Meter IC7/b3 .. 0Q Flow l;t.b G-PM Meter 3£"l7.61 .. ~ i I Flow j r-. v· l-PJV\ v . Meter LO;~;( .. 'Ll..4c ;".' ]1~~!J .:~f':; " o o o Date 12' I 2 r 20 (t Time Well 123h MW-4 fl..31 MW-26 ~IYlG TW4-19 J~2.~7 TW4-20 121-1 l TW4-4 Water: Depth to Water Depth Comments 7(j.5'd-Flow L··Lt£ /~p~ Meter h7~032u.:st hC)~ f{C) Flow 12 hP/J\ .. Meter j!,;; 7' g' ~ S? '-I 5J1~ 6.s Flow 15_LI 6PM Meter Ilcq j ~ 3. 0 I /;c).,IO Flow 11 .. D bP.AA Meter ::J753) '1" qc) hq~53 Flow 16 b-P~ Meter h I 331 .. '1 :3 1r<'~711 ~ "-6 ""t..:. .. r'\~; "-h. -- o o Date )~/Jt{/J} Time Well l:ll« MW-4 1'2.,1" MW-26 01"\S TW4-19 L~" TW4-20 1~ TW4-4 Water: Depth to Water Depth "7o.SI) b.2.0 0 'o.~, 'O.~ b1·'3 ~Lfq I 3~ Name ~n(''' HolliJA.f I Comments Flow Loi.l G-PI'\ Meter t.Ndf1.. f,7'6'~.'-' Flow L:a.·O ("PM. Meter Itct:tOC.O( Flow l'i.O CrPM Meter (b )~110'3.o1 Flow Ii) .. J 6-PM Meter ~~Oc('l1 gO Flow 11." t-pl't Meter ~1~'1'.' Depth to Water Time Well DeDth Comments Og~O MW-4 71.4'1 Flow IiItfPI Y-J &Pf'\ Meter 6\ '~7Y:;"S.J'f r ()~l" MW-26 b6 .IO Flow to.,. (,.p~ Meter Jllglf<.q~ J4YQ TW4-19 sg .l'l Flow 1'1 .0 CrPfI/\ Meter J'i ~5.28. 05 0811 TW4-20 c",,·56 Flow ~~.'i &PM Meter 387;2... '-t I. tot'-\ Og;\.,,, TW4-4 <:.tt ~'1 Flow 1~·5 ("PM Meter "3DJ~I.( Water: g71.s1~ () Depth to Water Name <:Uuao. ea.1~ ~ T4a44" !-I,ll;;",? Time Well Depth Comments I~Sb MW-4 7'1 _get Flow LJ :s C-P r-'\, Meter ~' b ~ 4 LICit .:2{J I~ MW-26 bD ,9 f Flow 10 q G-Pr{ Meter r1L\3 &2.87 i'?)..2D TW4-19 9 0,5 Flow 14. 0 G--P~ Meter ISl1QOS ~ 0 c 1:1'-lCl TW4-20 /)0 .. Jo Flow I O ~.S bfA o Meter :sq :2 D5q .~&' I:l.Sq TW4-4 '61, 9~ Flow f<b &?M Meter ~3'61 L.\3 . .b Water: gQI4JI,..\ '" ..... ) " .. " L .. :; ., ~ ~I ", ,', ."('. , -" ... ". . ...,... • ,0, ~.w} •. ~-; TabD Kriged Current Quarter Groundwater Contour Map, Details Map, and Depth to Water Summary TIME 1207 1323 1028 1027 1335 1332 1339 1349 1344 1022 1203 1054 830 822 1327 1311 1318 1243 1307 1315 1321 1318 1327 1321 1340 1341 1330 1333 1342 NAME: Tanner Holliday, Garrin Palmer DATE: 12/21/2011 WELL Static level TIME WELL Static Level TIME WELL Static Level TIME WELL Static Level MW-l 66.50 1257 MW-4 72.01 1057 PIEZ-l 61.27 DR-1 ABANDON MW-2 109.80 1255 TW4-1 64.01 1215 PIEZ-2 18.77 DR-2 ABANDON MW-3 83.50 1258 TW4-2 66.88 1246 PIEZ-3 40.08 MW-3A 85.26 1251 TW4-3 49.18 1315 PIEZ-4 47.60 MW-5 106.09 1302 TW4-4 69.13 1312 PIEZ-5 42.46 920 DR-5 82.96 MW-11 88.11 1247 TW4-5 55.66 923 DR-6 94.45 MW-12 108.21 1304 TW4-6 69.91 1257 TWN-l 50.94 1336 DR-7 92.14 MW-14 103.65 1257 TW4-7 67.29 1238 TWN-2 16.97 916 DR-8 51 MW-15 106.36 1253 TW4-8 66.39 1250 TWN-3 32.10 913 DR-9 86.35 MW-17 75.03 1249 TW4-9 53.68 1244 TWN-4 39.08 909 DR-10 78.11 MW-18 69.91 1245 TW4-10 55.50 1209 TWN-5 69.42 1032 DR-11 98.27 MW-19 51.67 1300 TW4-11 56.99 1202 TWN-6 74.27 1034 DR-12 87.78 MW-20 87.45 1015 TW4-12 40.01 1210 TWN-7 88.48 1036 DR-13 69.8 MW-22 66.87 1016 TW4-13 46.00 1200 TWN-8 61.30 903 DR-14 76.2 MW-23 117.30 1019 TW4-14 87.05 1059 TWN-9 60.03 927 DR-15 92.8 MW-24 114.40 1243 TW4-15 76.33 1051 TWN-I0 80.76 DR-16 ABANDON MW-25 73.80 1324 TW4-16 61.07 1046 TWN-11 69.35 901 DR-17 64.6 MW-26 76.33 1321 TW4-17 75.18 1044 TWN-12 29.31 DR-18 ABANDON MW-27 50.94 1259 TW4-18 56.25 1101 TWN-13 46.02 847.00 DR-19 63.2 MW-28 76.65 1223 TW4-19 60.27 1102 TWN-14 62.55 845.00 DR-20 55.85 MW-29 102.19 1241 TW4-20 70.95 1049 TWN-15 92.00 836 DR-21 101.29 MW-30 76.08 1304 TW4-21 53.67 1107 TWN-16 47.76 852 DR-22 Dry MW-31 68.06 1239 TW4-22 53.31 1105 TWN-17 33.70 841 DR-23 70.49 MW-32 75.18 1307 TW4-23 64.79 1241 TWN-18 57.50 855 DR-24 43.5 MW-33 Dry 1237 TW4-24 54.81 817 TWN-19 52.46 DR-25 ABANDON MW-34 107.75 1255 TW4-25 46.68 MW-35 112.35 1309 TW4-26 63.52 MW-36 110.45 1020 ITW4-27 1 90.16 MW-37 115.80 Comments: TW4-27 was purged yesterday on 12/20/2011 for well development and the static has not recovered to normal static. TW4-27 also needs bumper posts, labeled, painted, and locked. Some well times may be the same because we split up to take depths. I ~1 1 ~l @ Estimated dry area M~-5 perched monitoring well showing '&JI 5503 elevation in feet amsl TW4-12 temporary perched monitoring well 0 5584 showing elevation in feet amsl TWN-10 <>5586 temporary perched nitrate monitoring . well showing elevation in feet amsl PiEZ-1 perched piezometer showing e 5594 elevation in feet amsl TW4-27 temporary perched monitoring well ~ 5518 installed October, 2011 showing elevation in feet amsl RUIN SPRING 6 5380 seep or spring showing elevation in feet amsl HYDRO GEO CHEM, INC. NOTE: IVIW-4, MW-26 , TW4-4, TW4-19, and TW4-20 are pumping wells KR~GED 4th QUARrER~ 2011 WATER lEVELS WH~TE MESA S~TE APPROVED DATE REFERENCE FIGURE H:/718000/feb12/UwI1211.srf D-l ~D 6='0 pO (190 _ ' <f?.-P <f?':? <f?<f? d' <f? ;9 <f? I 8 ~ !I I D II fJ estimated capture zone boundary stream tubes resulting from pumping @ Estimated dry area i\!i!-5 perched monitoring well showing "1::1 5503 elevation in feet amsl TW4-12 t h d .. II emporary perc e monitoring we 0 5584 showing elevation in feet amsl TWN-1 0 ~5586 temporary perched nitrate monitoring well showing elevation in feet amsl PIEZ-1 perched piezometer showing e 5594 elevation in feet amsl TW4-27 temporary perched monitoring well * 5518 installed October, 2011 showing elevation in feet amsl RUIN SPRING o 5380 seep or spring showing elevation in feet amsl HYDRO GEO CHEM, INC. KR~GlEro 4th QUARTER~ 2(011 WAlleR l EVELS AND ESTiMATED CAPTURE ZONES WH~rE MESA SrrE DATE REFERENCE FIGURE H:/718000/feb12/UwI1211 cz2.srf D-2 tP1.I'<p(O cP~ <::pO ,'6'6' (?&,pt:!P '19 &(? I II tJ fj 8 fj fJ a LAINlAT~ON estimated capture zone boundary stream tubes resulting from pumping MW-4 d ° ° II h ° ~ 5550 perche mOnitoring we sowing elevation in feet amsl T~-~555 temporary perched monitoring well showing elevation in feet amsl PIEZ-2 perched piezometer showing e 5610 elevation in feet amsl TW4-2°7 temporary perched monitoring well ~5518 installed October, 2011 showing elevation in feet amsl HYDRO GEO CHEM, INC. NOTE: MW-4, MW-26, TW4-4, TW4-19 and TW4-20 are pumping wells APPROVED KR~GED 4th QUAR1ER~ 2011 WATER lEVELS AND EST~MATlED CAPTURE ZONES WH~TfE MESA S~TlE DATE FIGURE H:l718000/feb12/Uw11211czosrf D-3 TabE Kriged Previous Quarter Groundwater Contour Map ,/ ,09' #7" Itj[ 1/ ,I II II I ~:I II II I' II II :: 32 II II II II II II II I' II \ • M~-21 \ N '\ \ \ ~~ ~~ MW-02 e5S03 PROPERTY BOUNDARY ~&t80 MW-20 .5453 1 ~~ ~~ ~~ ~~ ~~ --=--=-"~--=--~~:- \\ \\ \\ MW-01 .5583 MW-18 .5587 ~5586 TWN-10 ~' / . \ I . \ ( PI~2 ~ 611 / ('.2 ~5~ / N-4 -" / $s. ~ ;9 ;::;l-~=-==::,;:;:::-== ---552 ~ ~ -=--:::::.. -::::... -=--=--=--=--=--=--==--~ -==--=--=--=- '" .,(/ 6: ~~ ~ ..: ~ ~ ~ \ c:== j-MW-22 ~ II .5450 '" # o MW-22 .5450 TW4-1 0 5554 PIEZ-1 ~ 5594 TWN-4 ~5603 MW-34 ~5492 MW-36 ~5493 SCALE IN FEET EXPLANATION perched monitoring well showing elevation in feet amsl temporary perched monitoring well showing eleva~ion 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 HYDRO GEO CHEM, INC. // // // // # // // // // 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 I DATE SJS REFERENCE FIGURE E-l H:/718000/nov11/wI0911 .srf TabF Hydrographs of Groundwater Elevations Over Time for Chloroform Monitoring Wells """"" """"" N o o o Depth Below Measuring Point (ft.) 00 o 0'\ o ..j::::.. N 0 0 ~------------~--- 0 09/25179 02/06/81 06/21182 11103/83 03/17/85 07/30/86 12/12/87 04/25/89 ~ 09/07/90 ~ ~ 01120192 ~ '* (t) 06103/93 ,... ~ 10/16/94 (t) ~ '* =-02/28/96 0 -< (t) 07/12197 ,... ~ ,...e 11124/98 e (t) .-. 04/07/00 ~ C- 08/20101 .... e ~ 01102103 --- 05/16104 09/28/05 02/10107 06/24/08 11106109 03/21111 08/02/12 ----~ 12/15/13 00 VI 00 o Depth Below Measuring Point (ft.) -.l VI -.l o 0'\ VI 0'\ o VI VI VI 0 11108/99 04/06/00 09/03/00 01131101 06/30101 11127/01 04/26/02 09/23/02 02/20103 ~ 07/20103 ~ ~ 12/17/03 I ~ 05/15/04 ~ ....... 10/12/04 ~ ~ 03/11105 ~ ~ '"0 08/08/05 ....... =- 01105106 0 -< 06/04/06 ~ ~ ~ 11101106 -. a 03/31107 ~ ~ 08/28/07 ~ 0--01125108 a '"0 06/23/08 ~ 11120108 04/19/09 09/16/09 02/13110 07/13/10 12110/10 05/09/11 10106111 03/04/12 08/01112 Depth Below Measuring Point (ft.) 00 00 -....] -....] 0'\ 0'\ VI VI VI 0 VI 0 VI 0 VI 0 11/08/99 04/06/00 09/03/00 01131101 06/30101 11127/01 04/26/02 09/23/02 02/20103 1-3 07/20103 ~ ~ 12117/03 I N 05/15104 ~ ...... 10112/04 n> ~ 03/11105 ~ n> "'C 08/08/05 ...... =- 01105106 0 < 06/04/06 n> ~ 1-3 11101106 -. a 03/31107 n> ~ 08/28/07 ~ 0--01125108 a "'C 06/23/08 --- 11120108 04/19/09 09/16/09 02113110 07113110 12110110 05109/11 ~ I ~ 10106/11 ~ 03/04/12 ....L ----1.. .....L 08/01112 Depth Below Measuring Point (ft.) -.l -.l 0'1 0'1 VI VI ...j:::. ...j:::. VI 0 VI 0 VI 0 VI 0 11129/99 04/27/00 09/24/00 02/21101 07/21101 12/18/01 05/17/02 10/14/02 03/13/03 1-3 08/10103 ~ ~ 01/07/04 I w 06105/04 ~ f'"'Io-11102104 n> ~ 04/01105 ~ n> ~ 08/29/05 f'"'Io-=- 01126106 0 < 06/25/06 n> ~ 1-3 11/22/06 ... e 04/21107 n> ---.... 09/18/07 ~ 0-..... 02/15/08 e ~ 07114108 ~ 12111108 05/10109 10107/09 03/06/10 08/03/10 12/31110 05/30/11 10/27/11 03/25/12 _ J l ____ .L _____ l _ 1 08/22/12 ....... ....... o ....... o o Depth Below Measuring Point (ft.) \0 o 00 o ~--------------~- -.....l o 0'\ o VI 0 05/25/00 09/02/00 12/11100 03/21101 06/29/01 10107/01 01115102 04/25/02 08/03/02 11111102 02/19/03 05/30103 09/07/03 1-3 12/16103 ~ 03/25/04 ~ I 07/03/04 ~ ~ 10/11104 01/19/05 t""I'-(D 04/29/05 ""'( ~ 08/07/05 (D 11115105 ~ t""I'- 02/23/06 =-0 06103/06 -< 09/11106 (D ""'( 12/20106 1-3 -. 03/30107 e 07/08/07 (D .--.... 10/16107 ~ 01124108 C'" ..... 05/03/08 e 08/11108 ~ ~ 11119/08 02/27/09 06107/09 09/15109 12/24/09 04/03/10 07/12/10 10/20/10 01128/11 05/08/11 08/16/11 11124/11 03/03/12 06/11112 09/19/12 0'1 N Depth Below Measuring Point (ft.) 0'1 o Vl 00 Vl 0'1 ---------~ ~--------------~--. Vl ~ Vl N Vl 0 01/02/00 04/11100 07/20100 10/28/00 02/05/01 05/16101 08/24/01 12/02/01 03/12/02 06/20102 09/28/02 01106103 04/16103 ~ 07/25/03 ~ 11102103 ~ 02/10104 I UI 05/20104 ~ 08/28/04 f"'t" 12/06104 ~ ~ 03/16105 ~ 06/24/05 ~ "'0 10102/05 f"'t" =-01110106 0 04/20106 -< ~ 07/29/06 ~ ~ 11106106 ,..... 02114/07 = ~ 05/25/07 ~ 09/02/07 ~ 12/11107 0-.. 03/20108 = "'0 06/28/08 ~ 10106/08 01114/09 04/24/09 08/02/09 11110109 02118/10 05/29/10 09/06/10 12/15110 03/25/11 07/03/11 10/11111 01119112 04/28/12 -----~ 08/06/12 Depth Below Measuring Point (ft.) \0 00 00 --l --l 0'\ 0'\ VI VI 0 VI 0 VI 0 VI 0 VI 0 05/25/00 09/02/00 12/11/00 03/21/01 06/29/01 ' 10107/01 01115102 04/25/02 08/03/02 11111102 02/19/03 05/30103 09/07/03 ~ 12/16103 ~ 03/25/04 ~ I 07/03/04 0'\ 10/11104 ~ 01119/05 ..... ~ 04/29/05 ~ 08/07/05 ~ ~ 11/15105 ~ ..... 02/23/06 =- 06103/06 0 ~ 09/11106 ~ ~ 12/20106 ~ ",,"- 03/30107 a 07/08/07 ~ ,-..... 10/16107 ~ 01124/08 'Cr -05/03/08 a 08/11108 ~ '-' 11119/08 02/27/09 06107/09 09/15/09 12/24/09 I 04/03/10 I 07/12110 10/20/10 I 01128/11 05/08/11 08/16/11 I 11124/11 03/03/12 l,, ___ " __ 06/11/12 --,_ .. -09/19/12 Depth Below Measuring Point (ft.) 00 00 -.....l -.....l 0\ 0\ VI VI VI 0 VI 0 VI 0 VI 0 11129/99 03/08/00 06/16/00 09/24/00 01102101 04/12/01 07/21101 10/29/01 02/06/02 05117102 08/25/02 12/03/02 03/13/03 06/21103 ~ 09/29/03 ~ 01107104 ~ I ......:J 04116/04 ~ 07/25/04 11102104 ...... n> 02/10105 ~ ~ 05/21105 n> 08/29/05 "'C ...... 12/07/05 =-0 03/17/06 -< 06/25/06 n> ~ 10103/06 ~ 01111107 .. = 04/21107 n> 07/30107 .-.... ~ 11107/07 0- 02115/08 -= 05/25/08 "'C 09/02/08 '-" 12/11108 03/21109 06/29/09 10107/09 01115110 04/25/10 08/03/10 11111110 02/19/11 05/30111 UJ LlJ r9107111 12/16/11 03/25112 07/03112 10/11112 00 o -l 00 -l 01 Depth Below Measuring Point (ft.) -l +:0. -l N -l o 01 00 01 01 01 +:0. 01 N 01 o ! _. I 11129/99 03/08/00 06/16/00 09/24/00 01102101 04/12/01 07/21101 10/29/01 02/06/02 05/17/02 08/25/02 12/03/02 03/13/03 06/21103 09/29/03 01107104 04/16/04 07/25/04 11102104 02/10105 05/21105 08/29/05 12/07/05 03117106 06/25/06 10103/06 01/11107 04/21107 07/30107 11/07/07 02/15/08 05/25/08 09/02/08 12111108 03/21109 06/29/09 10107/09 01115110 04/25110 08/03110 11111110 02/19/11 05/30111 09/07111 12/16/11 ! 03/25112 L I LJ L J L07/03/12 . ~ --L 10111112 ~ ~ I QO ~ f""t" ~ ~ ~ ~ "t:' f""t" =-o ~ ~ ~ ~ -. 9 ~ ..-. ~ C'" -9 "t:' '-" -.l o 0\ 00 0\ 0\ Depth Below Measuring Point (ft.) 0\ ~ 0\ N 0\ o VI 00 VI 0\ VI ~ VI N VI 0 12/20/99 03/29/00 07/07/00 10/15100 01123/01 05/03/01 08/11101 11119/01 02/27/02 06107/02 09/15/02 12/24/02 04/03/03 07/12/03 ~ 10/20103 ~ 01128104 ~ I \C 05/07/04 ~ 08/15/04 11123104 t""!'-~ 03/03/05 ~ ~ 06/11105 ~ 09/19/05 "C t""!'- 12/28/05 =-0 04/07/06 -< 07/16106 ~ ~ 10/24/06 ~ 02/01107 -. 9 05/12/07 ~ 08/20107 .-. ~ 11128/07 C'" 03/07/08 .... 9 06/15108 "C 09/23/08 '-..-I 01101109 04/11109 07/20109 10/28/09 02/05/10 05/16110 08/24/10 12/02/10 03/12111 06/20/11 09/28/11 01106112 04/15/12 07/24/12 11101112 Depth Below Measuring Point (ft.) VI VI VI VI VI VI VI 1.0 00 -....) 0\ VI +:::0. VJ 01103/02 04/13/02 07/22/02 10/30102 02/07/03 05/18/03 08/26/03 12/04/03 03/13/04 06/21/04 09/29/04 ~ 01107105 ~ 04/17/05 ".. I 07/26/05 ~ 0 11103105 ~ 02/11106 ~ t'D 05/22/06 ~ ~ 08/30106 t'D "'C 12/08/06 ~ =-03/18/07 0 06/26/07 -< t'D ~ 10104/07 ~ -. 01112108 !3 t'D 04/21108 ~ 07/30108 ~ 11107/08 0--!3 02/15/09 "'C ~ 05/26/09 09/03/09 12/12/09 03/22110 06/30110 10108110 01116111 04/26/11 08/04111 11112111 02/20/12 05/30/12 09/07112 Depth Below Measuring Point (ft.) 00 -.....l -.....l 0'\ 0'\ Vl Vl 0 Vl 0 Vl 0 Vl 0 01103/02 04/13/02 07/22/02 10/30102 02/07/03 05/18/03 08/26103 12/04/03 03113104 06/21104 09/29/04 ~ 01107105 ~ 04117/05 ~ I 07/26105 ~ ~ 11103/05 ~ 02/11106 ...... (D 05/22/06 ""l ~ 08/30106 (D ~ 12/08/06 ...... =- 03/18/07 0 -< 06/26107 (D ""l 10104/07 ~ ...... 01112108 e (D 04/21108 ~ 07130108 ~ 0-11107/08 ..... e 02/15/09 ~ ~ 05/26109 09/03/09 12/12/09 03/22/10 06/30110 10108/10 01116111 04/26/11 08/04111 11112/11 02/20/12 05/30112 09/07112 Depth Below Measuring Point (ft.) ..j:::. ..j:::. ..j:::. V.) V.) V.) V.) V.) V.) tv ...... 0 \0 00 ......:) 0\ VI ..j:::. ..j:::. ..j:::. ..j:::. V.) 08/23/02 12/01102 03/11103 06/19/03 09/27/03 01105104 04/14/04 07/23/04 10/31104 02/08/05 05/19/05 ~ ~ 08/27/05 ~ I 12/05105 ~ N 03/15106 ~ 06/23/06 ...... ('t) ~ 10101106 ~ 01109/07 ('t) "CI ...... 04/19/07 =s- O 07/28/07 < ('t) 11105107 ~ ~ 02/13/08 -. S 05/23/08 ('t) ~ 08/31108 ~ 12/09/08 C-,..., S 03/19/09 "CI ~ 06/27/09 10105/09 01113/10 04/23/10 08/01110 11109110 02117111 05/28111 09/05111 12/14/11 03/23/12 07/01112 ,...... o o \0 o Depth Below Measuring Point (ft.) 00 o -..l o 0\ o VI ..j:::. 0 0 08/23/02 12/01102 03/11103 06/19/03 09/27/03 01105104 04/14/04 07/23/04 10/31104 02/08/05 ~ 05/19/05 ~ 08/27/05 ~ I ~ 12/05105 w 03/15106 ~ f""t" 06/23/06 ~ """l 10101106 ~ ~ 01109/07 ~ f""t" 04/19/07 =-0 07/28/07 < ~ 11105107 """l ~ 02/13/08 ..... 9 05/23/08 ~ ~ 08/31108 ~ 0-12/09/08 ..... 9 03/19109 ~ '..-t 06/27/09 10105/09 01113/10 04/23/10 08/01110 11109/10 02/17/11 05/28/11 09/05/11 12/14/11 03/23/12 07/01112 Depth Below Measuring Point (ft.) "" "" "" "" "" "" "" 00 00 00 00 0\ VI .J;::. w N ~ 0 "" 00 -....) 0\ 08/23/02 12/01102 03/11103 06/19/03 09/27/03 01105104 04/14/04 07/23/04 10/31104 02/08/05 05/19/05 ~ ~ 08/27/05 ~ I 12/05/05 ~ ~ 03/15106 ~ 06/23/06 f'""t-~ ~ 10101106 ~ 01109/07 ~ "CI f'""t- 04/19/07 =-0 07/28/07 < ~ 11105107 ~ ~ 02/13/08 .. a 05/23/08 ~ ~ 08/31108 ~ 12/09/08 0-.... a 03/19/09 "CI ~ 06/27/09 10105/09 01113110 04/23/10 08/01110 11109/10 02/17/11 05/28/11 09/05/11 12/14/11 03/23/12 07/01112 Depth Below Measuring Point (ft.) ....... 0 \.0 00 -.l 0\ VI 4:;:.. 0 0 0 0 0 0 0 08/23/02 12/01102 03/11103 06/19/03 09/27/03 01105104 04/14/04 07/23/04 10/31104 02/08/05 ~ 05/19/05 ~ 08/27/05 N 12/05/05 0\ ~ 03/15/06 ~ 06/23/06 rt) ,.. 10101106 ~ rt) 01109/07 "'C ~ =-04/19/07 0 07/28/07 -< rt) ,.. 11105107 ~ .... 02/13/08 a rt) 05/23/08 ---... 08/31108 ~ e- 12/09/08 ... a 03/19/09 "'C '-" 06127109 10105/09 01113/10 04/23/10 08/01110 11109/10 02/17/11 05/28/11 09/05/11 12/14/11 03/23/12 07/01112 Depth Below Measuring Point (ft.) 00 -....l -....l 0'\ 0'\ VI VI 0 VI 0 VI 0 VI 0 08/23/02 12/01102 03/11103 06/19103 09/27/03 01105104 04/14/04 07/23/04 10/31104 02/08/05 05/19105 ~ ~ 08/27/05 ". I 12/05/05 ~ ~ 03/15/06 ~ 06/23/06 f""t'. tD ~ 10101/06 ~ 01109107 tD ~ f""t'. 04/19107 =-0 07/28/07 -< tD 11105107 ~ ~ 02/13/08 ..... e 05/23/08 tD --.. 08/31108 ~ 12/09108 0-.... e 03/19109 ~ ~ 06/27/09 10105/09 01113110 04/23110 08/01110 11109/10 02/17/11 05/28/11 09105/11 12/14111 03/23112 07/01112 00 ..J:::.. 00 tH 00 tv Depth Below Measuring Point (ft.) 00 ....... 00 o -....l \0 -....l 00 -....l -....l -....l 0'1 -....l VI -....l ..J:::.. 08/23/02 12/01102 03/11103 06/19/03 09/27/03 01105104 04/14/04 07123104 10/31/04 02/08/05 05/19105 ~ 08127/05 ~ w 12/05105 N 03/15106 ~ 06/23/06 ~ ~ ~ 10101106 ~ 01/09/07 ~ "'C ~ 04/19/07 =- 07/28/07 0 < ~ 11105107 ~ i-3 02/13/08 .... e 05/23/08 ~ ~ 08/31108 ~ 12/09/08 0--e 03/19/09 "'C ~ 06/27/09 10105/09 01113/10 04/23/10 08/01110 11109/10 02/17/11 05/28/11 09/05/11 12/14/11 03/23/12 07/01112 -.l o 0'1 o Depth Below Measuring Point (ft.) VI o ..j::::.. o w o N o ~ 0 0 08/23/02 12/01102 03111103 06/19/03 09/27/03 01105104 04/14/04 07/23/04 10/31/04 02/08/05 05/19/05 ~ ~ 08/27/05 ~ I 12/05/05 ~ 00 03/15/06 ~ 06/23/06 """'" ~ ~ 10101/06 ~ 01109107 ~ "'C """'" 04119/07 =-0 07/28/07 -< ~ 11105107 ~ ~ 02113/08 ..... e 05/23/08 ~ .-. 08/31108 ~ 12/09/08 0-..... e 03119109 "'C --.,; 06/27/09 10105/09 01113110 04/23/10 08/01110 11109110 02/17111 05/28/11 09/05/11 12114111 03/23112 07/01112 ~ o o \0 o Depth Below Measuring Point (ft.) 00 o -.....l o 0"1 o Vl ..j:::.. 0 0 08/23/02 12/01102 03/11103 06/19/03 09/27/03 01105104 04/14/04 07/23/04 10/31104 02/08/05 ~ 05/19/05 ~ 08/27/05 .a;. I ~ 12/05105 \C 03/15106 ~ .... 06/23/06 ~ --c 10101106 ~ ~ 01109/07 --0 .... 04/19/07 =-0 07/28/07 -< ~ 11105107 --c ~ 02/13/08 -. e 05/23/08 ~ ,-... 08/31108 ~ C'" 12/09/08 ..... e 03/19/09 --0 ~ 06127109 10105/09 01113/10 04123/10 08/01110 11109/10 02/17/11 05/28/11 09/05/11 12/14/11 03/23/12 07/01/12 ,...... o o \0 o Depth Below Measuring Point (ft.) 00 o -.J o 0\ o VI o ...j::::. o I • t 07/29/05 &. • 09117/05 11106105 12/26105 02/14106 04/05/06 05/25/06 07/14/06 09/02/06 10/22/06 12/11106 01130107 03/21107 05/10107 06/29/07 08/18107 10107/07 11126107 01115/08 03/05/08 04/24/08 06/13108 08/02/08 09/21108 11110108 12/30108 02/18/09 04/09/09 05/29/09 07/18109 09/06109 10/26109 12/15/09 02/03/10 03/25/10 05/14/10 07/03/10 08/22/10 10/11110 11130/10 01119/11 03/10/11 04/29/11 06/18/11 08/07/11 09/26/11 11115/11 01104/12 02/23/12 04/13/12 L-.-__ -l.. ___ ---J.-____ -l..-____ -I..-. ___ ..L..-__ --'-' 06102/12 ~ ~ ". I ~ = ~ f""to-~ ~ ~ ~ "'0 f""to-=-o ~ ~ ~ ~ ..... e ~ ,-..... ~ r:r ~ e "'0 "-" 0\ +::-0\ N Depth Below Measuring Point (ft.) 0\ o VI 00 VI 0\ VI +::-VI N .. I I 07/29/05 09117/05 11106/05 12/26105 02/14/06 04/05/06 05/25/06 07114106 09/02/06 10/22/06 12/11106 01130107 03/21107 05/10107 06/29/07 08/18/07 10107/07 11126107 01115/08 03/05/08 04/24/08 06/13/08 08/02/08 09/21108 11110108 12/30108 02/18/09 04/09/09 05/29/09 07/18/09 09/06109 10/26109 12/15/09 02/03/10 03/25110 05/14110 07/03110 08/22110 10/11110 11130110 01119/11 03110/11 04/29111 06/18/11 08/07/11 09/26/11 11115/11 01104/12 02/23/12 04113112 L-__ --L ___ ---!.. ___ .......1-___ --I... ___ --L... ___ -L 06102/12 i-3 ~ I N ~ ~ ..... t'D .., ~ t'D "'C ..... =-o < t'D .., i-3 ,..... e t'D ~ ~ 0-.-e "'C ~ VI \0 VI 00 Depth Below Measuring Point (ft.) VI -.l VI 0'\ VI VI VI ~ VI V-) ~ I 07/29/05 09117105 11106105 12/26105 02114106 04/05/06 05/25/06 07114106 09/02/06 10/22/06 12/11106 01130107 03/21107 05/10107 06/29/07 08/18/07 10107/07 11126107 01115/08 03/05/08 04/24/08 06/13/08 08/02/08 09/21108 11110108 12/30108 02/18/09 04/09/09 05/29/09 07/18/09 09/06109 10/26109 12/15/09 02/03/10 03/25/10 05/14110 07/03/10 08/22110 10/11110 11130/10 01119/11 03/10/11 04/29111 06118111 08/07/11 09/26/11 11115111 01104/12 02/23/12 04113112 L..-I 06102112 ~ ~ .&;iI.. I N N ~ f""t-~ ~ ~ ~ "CS f""t-=-o -< ~ ~ ~ .... e ~ ~ ~ C'" ..... e "CS ~ 0\ \0 0\ \0 0\ 00 Depth Below Measuring Point (ft.) 0\ 00 0\ -.....l 0\ -.....l 0\ 0\ 0\ 0\ 0\ VI 0\ VI 09/13/07 11102107 12/22/07 02/10108 03/31108 05/20108 07/09/08 08/28/08 10/17/08 12/06108 ~ ~ 01125109 ~ I 03/16109 N w 05/05/09 ~ f""t" 06/24/09 ~ ~ 08/13/09 ~ ~ 10102/09 "'C f""t" =-11121109 0 -< 01110/10 ~ ~ 03/01110 ~ .... 04/20/10 a ~ ~ 06109/10 ~ 07/29/10 0-..... 09/17/10 a "'C '-.-; 11106/10 12/26/10 02/14/11 04/05/11 05/25/11 07114/11 09/02111 10/22/11 12/11111 01130/12 03120/12 Depth Below Measuring Point (ft.) VI VI VI VI VI VI VI -....l -....l 0"1 0"1 VI VI ~ ~ (:, ~ (:, ~ (:, VI 09/13/07 11102107 12/22/07 02/10108 03/31108 05/20108 07/09/08 08/28/08 10/17/08 12/06/08 ~ ~ 01125109 .&;. I 03/16/09 N .&;. 05/05/09 ~ ,..... 06/24/09 ('t) ""'C 08/13/09 ~ ('t) 10102/09 "'C ,..... =-11121109 0 < 01110/10 ('t) ""'C 03/01110 ~ )ooIIe 04/20/10 e ('t) ---... 06/09/10 ~ 07/29/10 0-..... 09117110 e "'C --...,; 11106/10 12/26/10 02/14/11 04/05/11 05/25/11 07/14/11 09/02/11 10/22/11 12111111 01130/12 03/20/12 -.....J o I 0'\ o Depth Below Measuring Point (ft.) VI o ~ ~ v < ~ ~ ~t ~ ~ 0 ~ ~ ~ ~ ~~ ~ ~~ ..j::::. o V.) o -- N o ,...... o o 09/13/07 11102107 12/22/07 02/10108 03/31108 05/20108 07/09/08 08/28/08 10/17/08 12/06108 ~ ~ 01125109 ~ I 03/16109 N U'I 05/05/09 ~ ..... 06/24/09 n> ""l 08113109 ~ n> 10102/09 ~ ..... =-11121109 0 -< 01110110 n> ""l 03/01110 ~ ,..... 04/20/10 e n> ,-.... 06109/10 ~ 07/29/10 0'" - 09/17/10 e ~ "-' 11106110 12/26/10 02/14/11 04/05111 05/25111 07114/11 09/02111 10/22111 12/11111 01130112 --03/20/12 0"1 Vl (:, o 0"1 ..j::::.. 00 o I~ Depth Below Measuring Point (ft.) 0"1 ..j::::.. 0'\ o \ \~ 0"1 ..j::::.. ~ o 0"1 ..j::::.. N o '\ ~ 1\ 0"1 ..j::::.. (:, o ~ 0"1 w 00 o 0"1 w 0'\ o ~ ~ "-. 0"1 w ~ o 05/02/10 08/10/10 11118/10 02/26/11 06/06/11 09/14/11 12/23/11 04/01112 ~ ~ ". I N 0\ ~ .... n> ~ ~ n> ~ .... =r 0 -< n> ~ ~ -. e n> ~ ~ c--e ~ ~ Z1/IO/tO 11/£ZlZI 11/t1/60 -. c. a -,.Q 11/90/90 ~ '-" Q,) a ... ~ ... Q,) > 0 -= .joooI C. 11/9Z1Z0 Q,) ~ ... Q,) .joooI ~ t'--M I -.::r ~ ~ 01/81/II 01/01/80 01/ZO/~0 j o o ci \0 o o ci t'- o o ci 00 o o or) 00 • o o ci 0\ -- TabG Depths to Groundwater and Elevations Over Time for Chloroform Monitoring Wells Water Levels and Data over Time White Mesa Mill-Well MW4 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,620.77 5,622.33 1.56 123.6 5,527.63 09/25/79 94.70 93.14 5,527.63 10110/79 94.70 93.14 5,528.43 01110/80 93.90 92.34 5,529.93 03/20/80 92.40 90.84 5,528.03 06117/80 94.30 92.74 5,528.03 09115/80 94.30 92.74 5,527.93 10/08/80 94.40 92.84 5,527.93 02112/81 94.40 92.84 5,525.93 09/01/84 96.40 94.84 5,528.33 12/01/84 94.00 92.44 5,528.13 02/01/85 94.20 92.64 5,528.33 06/01/85 94.00 92.44 5,528.93 09/01/85 93.40 91.84 5,528.93 . 10/01/85 93.40 91.84 5,528.93 11/01/85 93.40 91.84 5,528.83 12/01/85 93.50 91.94 5,512.33 03/01/86 110.00 108.44 5,528.91 06119/86 93.42 91.86 5,528.83 09/01/86 93.50 91.94 5,529.16 12/01/86 93.17 91.61 5,526.66 02/20/87 95.67 94.11 5,529.16 04/28/87 93.17 91.61 5,529.08 08114/87 93.25 91.69 5,529.00 11/20/87 93.33 91.77 5,528.75 01/26/88 93.58 92.02 5,528.91 06/01/88 93.42 91.86 5,528.25 08/23/88 94.08 92.52 5,529.00 11/02/88 93.33 91.77 5,528.33 03/09/89 94.00 92.44 5,529.10 06/21/89 93.23 91.67 5,529.06 09/01/89 93.27 91.71 5,529.21 11/15/89 93.12 91.56 5,529.22 02116/90 93.11 91.55 5,529.43 05/08/90 92.90 91.34 5,529.40 08/07/90 92.93 91.37 5,529.53 11/13/90 92.80 91.24 5,529.86 02/27/91 92.47 90.91 5,529.91 OS/21/91 92.42 90.86 5,529.77 08/27/91 92.56 91.00 5,529.79 12/03/91 92.54 90.98 5,530.13 03117/92 92.20 90.64 5,529.85 06111/92 92.48 90.92 5,529.90 09113/92 92.43 90.87 Water Levels and Data over Time White Mesa Mill-Well MW4 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,620.77 5,622.33 1.56 123.6 5,529.92 12/09/92 92.41 90.85 5,530.25 03/24/93 92.08 90.52 5,530.20 06/08/93 92.13 90.57 5,530.19 09/22/93 92.14 90.58 5,529.75 12/14/93 92.58 91.02 5,530.98 03/24/94 91.35 89.79 5,531.35 06/15/94 90.98 89.42 5,531.62 08/18/94 90.71 89.15 5,532.58 12/13/94 89.75 88.19 5,533.42 03/16/95 88.91 87.35 5,534.70 06/27/95 87.63 86.07 5,535.44 09/20/95 86.89 85.33 5,537.16 12/11/95 85.17 83.61 5,538.37 03/28/96 83.96 82.40 5,539.10 06/07/96 83.23 81.67 5,539.13 09/16/96 83.20 81.64 5,542.29 03/20/97 80.04 78.48 5,551.58 04/07/99 70.75 69.19 5,552.08 05/11/99 70.25 68.69 5,552.83 07/06/99 69.50 67.94 5,553.47 09/28/99 68.86 67.30 5,554.63 01/03/00 67.70 66.14 5,555.13 04/04/00 67.20 65.64 5,555.73 05/02/00 66.60 65.04 5,556.03 05/11/00 66.30 64.74 5,555.73 05/15/00 66.60 65.04 5,555.98 OS/25/00 66.35 64.79 5,556.05 06/09/00 66.28 64.72 5,556.18 06/16/00 66.15 64.59 5,556.05 06/26/00 66.28 64.72 5,556.15 07/06/00 66.18 64.62 5,556.18 07/13/00 66.15 64.59 5,556.17 07/18/00 66.16 64.60 5,556.26 07/25/00 66.07 64.51 5,556.35 08/02/00 65.98 64.42 5,556.38 08/09/00 65.95 64.39 5,556.39 08/15/00 65.94 64.38 5,556.57 08/31/00 65.76 64.20 5,556.68 09/08/00 65.65 64.09 5,556.73 09/13/00 65.60 64.04 5,556.82 09/20/00 65.51 63.95 5,556.84 09/29/00 65.49 63.93 5,556.81 10/05/00 65.52 63.96 Water Levels and Data over Time White Mesa Mill-Well MW4 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,620.77 5,622.33 1.56 123.6 5,556.89 10112/00 65.44 63.88 5,556.98 10/19100 65.35 63.79 5,557.01 10/23/00 65.32 63.76 5,557.14 11109100 65.19 63.63 5,557.17 11114/00 65.16 63.60 5,556.95 11121100 65.38 63.82 5,557.08 11130100 65.25 63.69 5,557.55 12/07/00 64.78 63.22 5,557.66 01114/01 64.67 63.11 5,557.78 02/09101 64.55 62.99 5,558.28 03/29101 64.05 62.49 5,558.23 04/30101 64.10 62.54 5,558.31 05/31101 64.02 62.46 5,558.49 06/22/01 63.84 62.28 5,558.66 07110101 63.67 62.11 5,559.01 08120101 63.32 61.76 5,559.24 09119101 63.09 61.53 5,559.26 10102/01 63.07 61.51 5,559.27 11/08/01 63.06 61.50 5,559.77 12/03/01 62.56 61.00 5,559.78 01103/02 62.55 60.99 5,559.96 02/06/02 62.37 60.81 5,560.16 03/26/02 62.17 60.61 5,560.28 04/09102 62.05 60.49 5,560.76 05/23/02 61.57 60.01 5,560.58 06/05/02 61.75 60.19 5,560.43 07/08/02 61.90 60.34 5,560.44 08/23/02 61.89 60.33 5,560.71 09111102 61.62 60.06 5,560.89 10123/02 61.44 59.88 5,557.86 11122/02 64.47 62.91 5,561.10 12/03/02 61.23 59.67 5,561.39 01109103 60.94 59.38 5,561.41 02112/03 60.92 59.36 5,561.93 03/26/03 60.40 58.84 5,561.85 04/02/03 60.48 58.92 5,536.62 05/01103 85.71 84.15 5,528.56 06/09103 93.77 92.21 5,535.28 07/07/03 87.05 85.49 5,534.44 08/04/03 87.89 86.33 5,537.10 09111103 85.23 83.67 5,539.96 10102/03 82.37 80.81 5,535.91 11107/03 86.42 84.86 Water Levels and Data over Time White Mesa Mill-Well MW4 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,620.77 5,622.33 1.56 123.6 5,550.70 12/03/03 71.63 70.07 5,557.58 01115/04 64.75 63.19 5,558.80 02/10104 63.53 61.97 5,560.08 03/28/04 62.25 60.69 5,560.55 04/12/04 61.78 60.22 5,561.06 05/13/04 61.27 59.71 5,561.48 06/18/04 60.85 59.29 5,561.86 07/28/04 60.47 58.91 5,529.17 08/30104 93.16 91.60 5,536.55 09/16104 85.78 84.22 5,529.00 10/11104 93.33 91.77 5,541.55 11/16104 80.78 79.22 5,541.12 12/22/04 81.21 79.65 5,540.59 01118/05 81.74 80.18 5,542.85 02/28/05 79.48 77.92 5,537.91 03/15/05 84.42 82.86 5,548.67 04/26105 73.66 72.10 5,549.53 05/24/05 72.80 71.24 5,544.36 06/30105 77.97 76.41 5,545.16 07/29105 77.17 75.61 5,544.67 09/12/05 77.66 76.10 5,541.28 09/27/05 81.05 79.49 5,536.96 12/07/05 85.37 83.81 5,546.49 03/08/06 75.84 74.28 5,546.15 06/13/06 76.18 74.62 5,545.15 07/18/06 77.18 75.62 5,545.91 11/17/06 76.42 74.86 5,545.90 02/27/07 76.43 74.87 5,548.16 05/02/07 74.17 72.61 5,547.20 08/13/07 75.13 73.57 5,547.20 10/10107 75.13 73.57 5,547.79 03/26108 74.54 72.98 5,545.09 06/25/08 77.24 75.68 5,550.36 08/26108 71.97 70.41 5,550.39 10/14/08 71.94 70.38 5,542.25 03/03/09 80.08 78.52 5,542.25 06/24/09 80.08 78.52 5,550.19 09/10109 72.14 70.58 5,550.94 12/11109 71.39 69.83 5,546.08 03/11110 76.25 74.69 5,550.98 05/11110 71.35 69.79 5,548.33 09/29/10 74.00 72.44 5,551.01 12/21110 71.32 69.76 Water Levels and Data over Time White Mesa Mill-Well MW4 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,620.77 5,622.33 1.56 123.6 5,547.00 02/28111 75.33 73.77 5,557.54 06/21111 64.79 63.23 5,551.14 09/20111 71.19 69.63 5,550.32 12/21111 72.01 70.45 Water Levels and Data over Time White Mesa Mill -Well TW 4-1 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well z 5,620.77 5,618.58 1.02 111.04 5,537.23 11108/99 81.35 80.33 5,537.38 11109/99 81.20 80.18 5,537.48 01102/00 81.10 80.08 5,537.48 01/10/00 81.10 80.08 5,537.23 01117/00 81.35 80.33 5,537.28 01124/00 81.30 80.28 5,537.28 02/01100 81.30 80.28 5,537.18 02/07/00 81.40 80.38 5,537.48 02/14/00 81.10 80.08 5,537.48 02/23/00 81.10 80.08 5,537.58 03/01100 81.00 79.98 5,537.68 03/08/00 80.90 79.88 5,537.98 03/15/00 80.60 79.58 5,537.68 03/20/00 80.90 79.88 5,537.68 03/29/00 80.90 79.88 5,537.43 04/04/00 81.15 80.13 5,537.18 04/13/00 81.40 80.38 5,537.48 04/21100 81.10 80.08 5,537.68 04/28/00 80.90 79.88 5,537.58 05/01100 81.00 79.98 5,537.88 05/11100 80.70 79.68 5,537.58 05/15/00 81.00 79.98 5,537.88 OS/25/00 80.70 79.68 5,537.88 06/09/00 80.70 79.68 5,537.90 06/16/00 80.68 79.66 5,537.88 06/26/00 80.70 79.68 5,538.10 07/06/00 80.48 79.46 5,538.04 07/13/00 80.54 79.52 5,538.16 07/18/00 80.42 79.40 5,538.42 07/27/00 80.16 79.14 5,538.56 08/02/00 80.02 79.00 5,538.68 08/09/00 79.90 78.88 5,538.66 08/15/00 79.92 78.90 5,538.33 08/31100 80.25 79.23 5,539.18 09/01100 79.40 78.38 5,539.12 09/08/00 79.46 78.44 5,539.34 09/13/00 79.24 78.22 5,539.50 09/20/00 79.08 78.06 5,539.69 10/05/00 78.89 77.87 5,540.33 11109/00 78.25 77.23 5,540.74 12/06/00 77.84 76.82 5,542.39 01114/01 76.19 75.17 5,543.69 02/02/01 74.89 73.87 Water Levels and Data over Time White Mesa Mill -Well TW 4-1 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well z 5,620.77 5,618.58 1.02 111.04 5,544.96 03/29/01 73.62 72.60 5,545.45 04/30101 73.13 72.11 5,545.89 05/31101 72.69 71.67 5,546.19 06121101 72.39 71.37 5,546.50 07110101 72.08 71.06 5,547.18 08/20101 71.40 70.38 5,547.59 09119/01 70.99 69.97 5,547.84 10102/01 70.74 69.72 5,548.12 11/08/01 70.46 69.44 5,548.65 12/03/01 69.93 68.91 5,548.87 01103/02 69.71 68.69 5,549.37 02/06102 69.21 68.19 5,550.00 03/26102 68.58 67.56 5,550.22 04/09/02 68.36 67.34 5,550.81 05123/02 67.77 66.75 5,550.79 06105/02 67.79 66.77 5,551.08 07/08/02 67.50 66.48 5,551.54 08/23/02 67.04 66.02 5,551.79 09111102 66.79 65.77 5,552.19 10123/02 66.39 65.37 5,552.27 11122/02 66.31 65.29 5,552.48 12/03/02 66.10 65.08 5,552.74 01109/03 65.84 64.82 5,552.92 02112/03 65.66 64.64 5,553.40 03/26103 65.18 64.16 5,553.48 04/02/03 65.10 64.08 5,552.32 05/01103 66.26 65.24 5,550.53 06109/03 68.05 67.03 5,550.09 07/07/03 68.49 67.47 5,549.64 08/04/03 68.94 67.92 5,549.31 09111103 69.27 68.25 5,549.58 10102/03 69.00 67.98 5,549.50 11107/03 69.08 68.06 5,550.07 12/03/03 68.51 67.49 5,551.86 01115/04 66.72 65.70 5,552.57 02110104 66.01 64.99 5,553.63 03/28/04 64.95 63.93 5,554.04 04/12/04 64.54 63.52 5,554.60 05113/04 63.98 62.96 5,556.28 06118/04 62.30 61.28 5,556.61 07/28/04 61.97 60.95 5,554.21 08/30104 64.37 63.35 5,553.49 09/16104 65.09 64.07 Water Levels and Data over Time White Mesa Mill -Well TW 4-1 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well z 5,620.77 5,618.58 1.02 111.04 5,552.53 10111104 66.05 65.03 5,552.42 11116/04 66.16 65.14 5,552.46 12/22/04 66.12 65.10 5,552.07 01118/05 66.51 65.49 5,552.21 02128/05 66.37 65.35 5,552.26 03115/05 66.32 65.30 5,552.30 04/26/05 66.28 65.26 5,552.25 05/24/05 66.33 65.31 5,552.22 06/30105 66.36 65.34 5,552.15 07/29105 66.43 65.41 5,552.47 09112/05 66.11 65.09 5,552.50 12/07/05 66.08 65.06 5,552.96 03/08/06 65.62 64.60 5,553.23 06114/06 65.35 64.33 5,557.20 07118/06 61.38 60.36 5,553.32 11107/06 65.26 64.24 5,554.35 02/27/07 64.23 63.21 5,554.07 05/02/07 64.51 63.49 5,554.07 08114/07 64.51 63.49 5,553.88 10110107 64.70 63.68 5,555.73 03/26/08 62.85 61.83 5,556.60 06/24/08 61.98 60.96 5,556.83 08126/08 61.75 60.73 5,556.87 10/14/08 61.71 60.69 5,556.90 03110109 61.68 60.66 5,556.91 06/24/09 61.67 60.65 5,556.61 09110109 61.97 60.95 5,556.78 12111109 61.8 60.78 5,556.75 03111110 61.83 60.81 5,556.19 05111110 62.39 61.37 5,555.26 09/29110 63.32 62.30 5,554.66 12/21110 63.92 62.90 5,554.74 02128111 63.84 62.82 5,554.57 06/21111 64.01 62.99 5,554.13 09120111 64.45 63.43 5,554.54 12/21111 64.04 63.02 Water Levels and Data over Time White Mesa Mill-Well TW4-2 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,623.10 5,624.72 1.62 121.125 5,548.57 11108/99 76.15 74.53 5,548.57 11109/99 76.15 74.53 5,548.32 01/02/00 76.40 74.78 5,548.52 01/10/00 76.20 74.58 5,548.32 01117/00 76.40 74.78 5,548.72 01124/00 76.00 74.38 5,548.62 02/01100 76.10 74.48 5,548.62 02/07/00 76.10 74.48 5,549.02 02/14/00 75.70 74.08 5,549.12 02/23/00 75.60 73.98 5,549.22 03/01100 75.50 73.88 5,549.32 03/08/00 75.40 73.78 5,549.22 03/15/00 75.50 73.88 5,549.92 03/20/00 74.80 73.18 5,549.72 03/29/00 75.00 73.38 5,549.42 04/04/00 75.30 73.68 5,549.52 04/13/00 75.20 73.58 5,549.72 04/21100 75.00 73.38 5,549.82 04/28/00 74.90 73.28 5,549.82 05/01100 74.90 73.28 5,550.12 05/11100 74.60 72.98 5,549.82 05/15/00 74.90 73.28 5,550.12 OS/25/00 74.60 72.98 5,550.12 06/09/00 74.60 72.98 5,550.22 06/16/00 74.50 72.88 5,550.07 06/26/00 74.65 73.03 5,550.17 07/06/00 74.55 72.93 5,550.17 07/13/00 74.55 72.93 5,550.18 07/18/00 74.54 72.92 5,550.33 07/27/00 74.39 72.77 5,550.38 08/02/00 74.34 72.72 5,550.40 08/09/00 74.32 72.70 5,550.42 08/15/00 74.30 72.68 5,550.54 08/31100 74.18 72.56 5,550.87 09/08/00 73.85 72.23 5,550.97 09/13/00 73.75 72.13 5,551.04 09/20/00 73.68 72.06 5,545.83 10/05/00 78.89 77.27 5,546.47 11109/00 78.25 76.63 5,546.88 12/06/00 77.84 76.22 5,552.18 01126/01 72.54 70.92 5,552.20 02/02/01 72.52 70.90 5,551.10 03/29/01 73.62 72.00 Water Levels and Data over Time White Mesa Mill-Well TW4-2 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,623.10 5,624.72 1.62 121.125 5,551.59 04/30101 73.13 71.51 5,552.03 05/31101 72.69 71.07 5,552.33 06/21101 72.39 70.77 5,552.64 07110101 72.08 70.46 5,553.32 08/20101 71.40 69.78 5,553.73 09119/01 70.99 69.37 5,553.98 10102/01 70.74 69.12 5,554.14 11108/01 70.58 68.96 5,554.79 12/03/01 69.93 68.31 5,554.74 01103/02 69.98 68.36 5,554.91 02/06102 69.81 68.19 5,555.15 03/26102 69.57 67.95 5,555.39 04/09/02 69.33 67.71 5,555.73 05/23/02 68.99 67.37 5,555.79 06105/02 68.93 67.31 5,555.91 07/08/02 68.81 67.19 5,556.04 08/23/02 68.68 67.06 5,556.25 09111102 68.47 66.85 5,556.72 10/23/02 68.00 66.38 5,556.42 11122/02 68.30 66.68 5,557.01 12/03/02 67.71 66.09 5,557.20 01109/03 67.52 65.90 5,557.35 02112/03 67.37 65.75 5,557.83 03/26103 66.89 65.27 5,557.87 04/02/03 66.85 65.23 5,553.71 05/01103 71.01 69.39 5,548.98 06109/03 75.74 74.12 5,548.14 07/07/03 76.58 74.96 5,547.75 08/04/03 76.97 75.35 5,547.22 09111103 77.50 75.88 5,547.68 10102/03 77.04 75.42 5,547.52 11107/03 77.20 75.58 5,548.29 12/03/03 76.43 74.81 5,554.00 01115/04 70.72 69.10 5,555.46 02110104 69.26 67.64 5,556.90 03/28/04 67.82 66.20 5,557.49 04112/04 67.23 65.61 5,558.07 05/13/04 66.65 65.03 5,558.19 06118/04 66.53 64.91 5,559.00 07/28/04 65.72 64.10 5,554.26 08/30104 70.46 68.84 5,551.97 09116104 72.75 71.13 5,549.65 10111104 75.07 73.45 Water Levels and Data over Time White Mesa Mill -Well TW 4-2 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,623.10 5,624.72 1.62 121.125 5,549.89 11116/04 74.83 73.21 5,550.37 12/22/04 74.35 72.73 5,549.95 01118/05 74.77 73.15 5,550.09 02128/05 74.63 73.01 5,550.13 03115/05 74.59 72.97 5,550.18 04126/05 74.54 72.92 5,550.32 05/24/05 74.40 72.78 5,550.21 06/30105 74.51 72.89 5,550.11 07129/05 74.61 72.99 5,550.33 09112/05 74.39 72.77 5,550.29 12/07/05 74.43 72.81 5,551.30 03/08/06 73.42 71.80 5,551.42 06114/06 73.3 71.68 5,550.52 07118/06 74.20 72.58 5550.52 11107/06 74.20 72.58 5552.89 02127/07 71.83 70.21 5,552.06 05/02/07 72.66 71.04 5,552.02 08114/07 72.7 71.08 5,552.20 10110107 72.52 70.90 5,554.58 03/26/08 70.14 68.52 5,555.23 06/24/08 69.49 67.87 5,555.29 08/26/08 69.43 67.81 5,555.43 10114/08 69.29 67.67 5,555.73 03110109 68.99 67.37 5,556.25 06/24/09 68.47 66.85 5,555.94 09110109 68.78 67.16 5,556.53 12111109 68.19 66.57 5,557.87 03111110 66.85 65.23 5,557.63 05111110 67.09 65.47 5,557.24 09/29110 67.48 65.86 5,557.00 12/21110 67.72 66.10 5,557.61 02/28111 67.11 65.49 5,557.58 06/21111 67.14 65.52 5,557.46 09/20111 67.26 65.64 5,557.84 12/21111 66.88 65.26 Water Levels and Data over Time White Mesa Mill -Well TW 4-3 Total or Measuring Measured Total Water Land Point Depth to Depth to Elevation Surface Elevation Length Of Date Of Water Water (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Total Depth Of Well 5,631.21 5,632.23 1.02 141 5,565.78 11129/99 66.45 65.43 5,566.93 01102/00 65.30 64.28 5,567.03 01110/00 65.20 64.18 5,566.83 01/17/00 65.40 64.38 5,567.13 01124/00 65.10 64.08 5,567.33 02/01100 64.90 63.88 5,567.13 02/07/00 65.10 64.08 5,567.43 02/14/00 64.80 63.78 5,567.63 02/23/00 64.60 63.58 5,567.73 03/01100 64.50 63.48 5,567.83 03/08/00 64.40 63.38 5,567.70 03/15/00 64.53 63.51 5,568.03 03/20/00 64.20 63.18 5,567.93 03/29/00 64.30 63.28 5,567.63 04/04/00 64.60 63.58 5,567.83 04/13/00 64.40 63.38 5,568.03 04/21100 64.20 63.18 5,568.23 04/28/00 64.00 62.98 5,568.13 05/01100 64.10 63.08 5,568.53 05/11100 63.70 62.68 5,568.23 05/15/00 64.00 62.98 5,568.53 OS/25/00 63.70 62.68 5,568.61 06/09/00 63.62 62.60 5,568.69 06/16/00 63.54 62.52 5,568.45 06/26/00 63.78 62.76 5,568.61 07/06/00 63.62 62.60 5,568.61 07/06/00 63.62 62.60 5,568.49 07/13/00 63.74 62.72 5,568.55 07/18/00 63.68 62.66 5,568.65 07/27/00 63.58 62.56 5,568.73 08/02/00 63.50 62.48 5,568.77 08/09/00 63.46 62.44 5,568.76 08/16/00 63.47 62.45 5,568.95 08/31100 63.28 62.26 5,568.49 09/08/00 63.74 62.72 5,568.67 09/13/00 63.56 62.54 5,568.96 09/20/00 63.27 62.25 5,568.93 10/05/00 63.3 62.28 5,569.34 11109/00 62.89 61.87 5,568.79 12/06/00 63.44 62.42 5,569.11 01103/01 63.12 62.10 5,569.75 02/09/01 62.48 61.46 5,570.34 03/28/01 61.89 60.87 Water Levels and Data over Time White Mesa Mill -Well TW 4-3 Total or Measuring Measured Total Water Land Point Depth to Depth to Elevation Surface Elevation Length Of Date Of Water Water (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Total Depth Of Well 5,631.21 5,632.23 1.02 141 5,570.61 04/30101 61.62 60.60 5,570.70 05/31/01 61.53 60.51 5,570.88 06/21/01 61.35 60.33 5,571.02 07/10101 61.21 60.19 5,571.70 08/20101 60.53 59.51 5,572.12 09/19/01 60.11 59.09 5,572.08 10102/01 60.15 59.13 5,572.78 11/08/01 59.45 58.43 5,573.27 12/03/01 58.96 57.94 5,573.47 01/03/02 58.76 57.74 5,573.93 02/06102 58.30 57.28 5,574.75 03/26102 57.48 56.46 5,574.26 04/09/02 57.97 56.95 5,575.39 05/23/02 56.84 55.82 5,574.84 06105/02 57.39 56.37 5,575.33 07/08/02 56.90 55.88 5,575.79 08/23/02 56.44 55.42 5,576.08 09/11/02 56.15 55.13 5,576.30 10/23/02 55.93 54.91 5,576.35 11/22/02 55.88 54.86 5,576.54 12/03/02 55.69 54.67 5,576.96 01/09/03 55.27 54.25 5,577.11 02/12/03 55.12 54.10 5,577.61 03/26103 54.62 53.60 5,572.80 04/02/03 59.43 58.41 5,577.89 05/01/03 54.34 53.32 5,577.91 06109/03 54.32 53.30 5,577.53 07/07/03 54.70 53.68 5,577.50 08/04/03 54.73 53.71 5,577.71 09/11/03 54.52 53.50 5,577.31 10102/03 54.92 53.90 5,577.33 11/07/03 54.90 53.88 5,577.34 12/03/03 54.89 53.87 5,578.24 01/15/04 53.99 52.97 5,578.38 02/10104 53.85 52.83 5,578.69 03/28/04 53.54 52.52 5,579.15 04/12/04 53.08 52.06 5,579.47 05/13/04 52.76 51.74 5,579.53 06/18/04 52.70 51.68 5,580.17 07/28/04 52.06 51.04 5,580.20 08/30104 52.03 51.01 5,580.26 09/16104 51.97 50.95 5,580.12 10/11/04 52.11 51 .09 Water Levels and Data over Time White Mesa Mill -Well TW 4-3 Total or Measuring Measured Total Water Land Point Depth to Depth to Elevation Surface Elevation Length Of Date Of Water Water (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Total Depth Of Well 5,631.21 5,632.23 1.02 141 5,579.93 11116/04 52.30 51.28 5,580.07 12/22/04 52.16 51.14 5,579.80 01118/05 52.43 51.41 5,580.35 02/28/05 51.88 50.86 5,580.57 03115/05 51.66 50.64 5,580.86 04/26/05 51.37 50.35 5,581.20 OS/24/05 51.03 50.01 5,581.51 06/30105 50.72 49.70 5,581.55 07/29/05 50.68 49.66 5,581.68 09112/05 50.55 49.53 5,581.83 12/07/05 50.4 49.38 5,564.92 03/08/06 67.31 66.29 5,582.73 06113/06 49.50 48.48 5,582.33 07118/06 49.90 48.88 5,582.75 11107/06 49.48 48.46 5583.35 02/27/07 48.88 47.86 5,559.57 05/02/07 72.66 71.64 5,583.29 08114/07 48.94 47.92 5,583.49 10110107 48.74 47.72 5,584.95 03/26/08 47.28 46.26 5,584.59 06/24/08 47.64 46.62 5,584.55 08/26/08 47.68 46.66 5,584.03 10114/08 48.2 47.18 5,583.64 03/03/09 48.59 47.57 5,587.34 06/24/09 44.89 43.87 5,582.90 09110109 49.33 48.31 5,583.27 12111109 48.96 47.94 5,583.63 03111110 48.6 47.58 5,583.82 05111110 48.41 47.39 5,583.51 09/29110 48.72 47.70 5,582.86 12/21110 49.37 48.35 5,582.60 02/28111 49.63 48.61 5,590.00 06/21111 42.23 41.21 5,582.70 09/20111 49.53 48.51 5,583.05 12/21111 49.18 48.16 Water Levels and Data over Time White Mesa Mill -Well TW 4-4 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,612.301 5,613.485 1.184 114.5 5,512.145 OS/25/00 101.34 100.16 5,518.985 06/09/00 94.50 93.32 5,512.145 06/16/00 101.34 100.16 5,517.465 06/26/00 96.02 94.84 5,520.145 07/06/00 93.34 92.16 5,521.435 07/13/00 92.05 90.87 5,522.005 07/18/00 91.48 90.30 5,522.945 07/27/00 90.54 89.36 5,523.485 08/02/00 90.00 88.82 5,523.845 08/09/00 89.64 88.46 5,523.885 08/15/00 89.60 88.42 5,524.555 09/01/00 88.93 87.75 5,513.235 09/08/00 100.25 99.07 5,516.665 09/13/00 96.82 95.64 5,519.085 09/20/00 94.40 93.22 5,522.165 10/05/00 91.32 90.14 5,524.665 11/09/00 88.82 87.64 5,518.545 -~ 12/06/00 94.94 93.76 5,527.695 01/03/01 85.79 84.61 5,529.085 02/09/01 84.40 83.22 5,529.535 03/27/01 83.95 82.77 5,530.235 04/30/01 83.25 82.07 5,530.265 05/31/01 83.22 82.04 5,534.405 06/22/01 79.08 77.90 5,533.145 07/10/01 80.34 79.16 5,534.035 08/20/01 79.45 78.27 5,534.465 09/19/01 79.02 77.84 5,533.285 10/02/01 80.20 79.02 5,533.865 11/08/01 79.62 78.44 5,534.275 12/03/01 79.21 78.03 5,534.715 01/03/02 78.77 77.59 5,535.435 02/06/02 78.05 76.87 5,536.445 03/26/02 77.04 75.86 5,536.405 04/09/02 77.08 75.90 5,537.335 OS/23/02 76.15 74.97 5,537.325 06/05/02 76.16 74.98 5,537.975 07/08/02 75.51 74.33 5,538.825 08/23/02 74.66 73.48 5,539.275 09/11/02 74.21 73.03 5,539.765 10/23/02 73.72 72.54 5,540.205 11/22/02 73.28 72.10 5,540.295 12/03/02 73.19 72.01 5,540.795 01/09/03 72.69 71.51 Water Levels and Data over Time White Mesa Mill -Well TW 4-4 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,612.301 5,613.485 1.184 114.5 5,540.985 02112/03 72.50 71.32 5,541.675 03/26103 71.81 70.63 5,541.765 04/02/03 71.72 70.54 5,541.885 05/01103 71.60 70.42 5,542.025 06109/03 71.46 70.28 5,541.925 07/07/03 71.56 70.38 5,541.885 08/04/03 71.60 70.42 5,541.825 09111103 71.66 70.48 5,541.885 10102/03 71.60 70.42 5,541.995 11107/03 71.49 70.31 5,542.005 12/03/03 71.48 70.30 5,542.555 01115/04 70.93 69.75 5,542~705 02110104 70.78 69.60 5,543.225 03/28/04 70.26 69.08 5,543.555 04112/04 69.93 68.75 5,543.865 05/13/04 69.62 68.44 5,543.915 06118/04 69.57 68.39 5,544.655 07/28/04 68.83 67.65 5,544.795 08/30104 68.69 67.51 5,544.845 09116104 68.64 67.46 5,544.705 10/11104 68.78 67.60 5,544.525 11116/04 68.96 67.78 5,544.625 12/22/04 68.86 67.68 5,544.305 01118/05 69.18 68.00 5,544.585 02/28/05 68.90 67.72 5,544.685 03115/05 68.80 67.62 5,544.675 04/26105 68.81 67.63 5,544.785 OS/24/05 68.70 67.52 5,544.795 06/30105 68.69 67.51 5,544.775 07/29/05 68.71 67.53 5,545.005 09112/05 68.48 67.30 5,545.225 12/07/05 68.26 67.08 5,545.735 03/08/06 67.75 66.57 5,545.785 06114/06 67.70 66.52 5,545.855 07118/06 67.63 66.45 5,545.805 11107/06 67.68 66.50 5546.675 02/27/07 66.81 65.63 5,546.535 05/02/07 66.95 65.77 5,547.155 08115/07 66.33 65.15 5,547.215 10/10107 66.27 65.09 5,548.305 03/26108 65.18 64.00 5,548.865 06/24/08 64.62 63.44 5,549.235 08/26108 64.25 63.07 Water Levels and Data over Time White Mesa Mill -Well TW 4-4 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,612.301 5,613.485 1.184 114.5 5,549.305 10114/08 64.18 63.00 5,549.725 03/03/09 63.76 62.58 5,549.905 06/24/09 63.58 62.40 5,549.695 09110109 63.79 62.61 5,549.865 12/11109 63.62 62.44 5,545.60 03111110 67.89 66.71 5,530.88 05111110 82.61 81.43 5,545.24 09129110 68.25 67.07 5,533.66 12121110 79.83 78.65 5,544.44 02128111 69.05 67.87 5,543.73 06/21111 69.76 68.58 5,540.48 09120111 73.01 71.83 5,544.36 12121111 69.13 67.95 J Water Levels and Data over Time White Mesa Mill -Well TW 4-5 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,638.75 5,640.70 1.95 121.75 5,579.30 01102/00 61.40 59.45 5,579.60 01/10/00 61.10 59.15 5,579.35 01117/00 61.35 59.40 5,579.60 01124/00 61.10 59.15 5,579.50 02/01100 61.20 59.25 5,579.50 02/07/00 61.20 59.25 5,579.90 02/14/00 60.80 58.85 5,579.90 02/23/00 60.80 58.85 5,580.20 03/01100 60.50 58.55 5,580.00 03/08/00 60.70 58.75 5,580.04 03/15/00 60.66 58.71 5,580.70 03/20/00 60.00 58.05 5,580.30 03/29/00 60.40 58.45 5,580.00 04/04/00 60.70 58.75 5,580.20 04/13/00 60.50 58.55 5,580.40 04/21100 60.30 58.35 5,580.50 04/28/00 60.20 58.25 5,580.50 05/01100 60.20 58.25 5,580.90 05/11100 59.80 57.85 5,580.50 05/15/00 60.20 58.25 5,580.75 OS/25/00 59.95 58.00 5,580.80 06/09/00 59.90 57.95 5,580.92 06/16/00 59.78 57.83 5,580.80 06/26/00 59.90 57.95 5,580.90 07/06/00 59.80 57.85 5,581.05 07/13/00 59.65 57.70 5,580.90 07/18/00 59.80 57.85 5,581.05 07/27/00 59.65 57.70 5,581.06 08/02/00 59.64 57.69 5,581.08 08/09/00 59.62 57.67 5,581.07 08/16/00 59.63 57.68 5,581.25 08/31100 59.45 57.50 5,581.32 09/08/00 59.38 57.43 5,581.34 09/13/00 59.36 57.41 5,581.41 09/20/00 59.29 57.34 5,581.37 10/05/00 59.33 57.38 5,581.66 11109/00 59.04 57.09 5,581.63 12/06/00 59.07 57.12 5,581.92 01103/01 58.78 56.83 5,582.20 02/09/01 58.50 56.55 5,582.54 03/28/01 58.16 56.21 5,582.72 04/30/01 57.98 56.03 5,582.72 05/31101 57.98 56.03 Water Levels and Data over Time White Mesa Mill -Well TW 4-5 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,638.75 5,640.70 1.95 121.75 5,582.81 06/22/01 57.89 55.94 5,582.92 07/10101 57.78 55.83 5,583.17 08/20101 57.53 55.58 5,583.28 09/19/01 57.42 55.47 5,583.36 10102/01 57.34 55.39 5,583.49 11108/01 57.21 55.26 5,583.84 12/03/01 56.86 54.91 5,583.79 01103/02 56.91 54.96 5,583.96 02/06/02 56.74 54.79 5,584.39 03/26/02 56.31 54.36 5,584.12 04/09/02 56.58 54.63 5,584.55 05/23/02 56.15 54.20 5,584.42 06/05/02 56.28 54.33 5,583.65 07/08/02 57.05 55.10 5,584.90 08/23/02 55.80 53.85 5,585.02 09/11102 55.68 53.73 5,585.20 10/23/02 55.50 53.55 5,585.15 11122/02 55.55 53.60 5,585.42 12/03/02 55.28 53.33 5,585.65 01109/03 55.05 53.10 5,585.65 02/12/03 55.05 53.10 5,585.92 03/26/03 54.78 52.83 5,586.22 04/02/03 54.48 52.53 5,586.01 05/01103 54.69 52.74 5,584.81 06/09/03 55.89 53.94 5,584.34 07/07/03 56.36 54.41 5,584.40 08/04/03 56.30 54.35 5,583.88 09/11103 56.82 54.87 5,583.57 10102/03 57.13 55.18 5,583.39 11/07/03 57.31 55.36 5,583.97 12/03/03 56.73 54.78 5,585.28 01/15/04 55.42 53.47 5,585.50 02/10104 55.20 53.25 5,585.87 03/28/04 54.83 52.88 5,586.20 04/12/04 54.50 52.55 5,586.45 05/13/04 54.25 52.30 5,586.50 06/18/04 54.20 52.25 5,587.13 07/28/04 53.57 51.62 5,586.22 08/30104 54.48 52.53 5,585.69 09/16/04 55.01 53.06 5,585.17 10/11104 55.53 53.58 5,584.64 11116/04 56.06 54.11 5,584.77 12/22/04 55.93 53.98 Water Levels and Data over Time White Mesa Mill -Well TW 4-5 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,638.75 5,640.70 1.95 121.75 5,584.65 01118/05 56.05 54.10 5,584.98 02/28/05 55.72 53.77 5,585.15 03115/05 55.55 53.60 5,586.25 04/26/05 54.45 52.50 5,586.79 05/24/05 53.91 51.96 5,586.52 06/30105 54.18 52.23 5,586.03 07/29/05 54.67 52.72 5,586.05 09112/05 54.65 52.70 5,585.80 12/07/05 54.90 52.95 5,587.06 03/08/06 53.64 51.69 5,585.90 06/13/06 54.80 52.85 5,585.32 07118/06 55.38 53.43 5,585.35 11/07/06 55.35 53.40 5585.81 02/27/07 54.89 52.94 5,585.20 05/02/07 55.50 53.55 5,586.66 08114/07 54.04 52.09 5,586.80 10110107 53.90 51.95 5,588.48 03/26/08 52.22 50.27 5,586.51 06/24/08 54.19 52.24 5,586.45 08/26/08 54.25 52.30 5,585.40 10/14/08 55.3 53.35 5,584.80 03/03/09 55.9 53.95 5,584.73 06/24/09 55.97 54.02 5,584.36 09110109 56.34 54.39 5,585.02 12111109 55.68 53.73 5,585.66 03111110 55.04 53.09 5,584.86 05111110 55.84 53.89 5,584.55 09/29110 56.15 54.20 5,584.17 12/21110 56.53 54.58 5,583.55 02/28111 57.15 55.20 5,584.72 06/21111 55.98 54.03 5,584.62 09/20111 56.08 54.13 5,585.04 11121111 55.66 53.71 Water Levels and Data over Time White Mesa Mill-Well TW4-6 Total or Measuring Measured Total Total Water Land Point Depth to Depth to Depth Of Elevation Surface Elevation Length Of Date Of Water Water Well (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD) 5,607.33 5,608.78 1.450 98.55 5,522.28 OS/25/00 86.50 85.05 5,521.51 06/09/00 87.27 85.82 5,522.35 06/16/00 86.43 84.98 5,522.14 06/26/00 86.64 85.19 5,522.25 07/06/00 86.53 85.08 5,522.13 07/13/00 86.65 85.20 5,522.17 07/18/00 86.61 85.16 5,522.26 07/25/00 86.52 85.07 5,522.31 08/02/00 86.47 85.02 5,522.33 08/09/00 86.45 85.00 5,522.35 08/15/00 86.43 84.98 5,522.40 08/31100 86.38 84.93 5,522.40 09/08/00 86.38 84.93 5,522.45 09/13/00 86.33 84.88 5,522.53 09/20/00 86.25 84.80 5,522.39 10/05/00 86.39 84.94 5,522.42 11109/00 86.36 84.91 5,522.29 12/06/00 86.49 85.04 5,522.63 01103/01 86.15 84.70 5,522.72 02/09/01 86.06 84.61 5,522.90 03/26/01 85.88 84.43 5,522.70 04/30/01 86.08 84.63 5,522.89 05/31101 85.89 84.44 5,522.88 06/20/01 85.90 84.45 5,522.96 07/10/01 85.82 84.37 5,523.10 08/20/01 85.68 84.23 5,523.23 09/19/01 85.55 84.10 5,523.21 10/02/01 85.57 84.12 5,523.25 11108/01 85.53 84.08 5,523.46 12/03/01 85.32 83.87 5,523.36 01103/02 85.42 83.97 5,523.50 02/06/02 85.28 83.83 5,523.94 03/26/02 84.84 83.39 5,523.75 04/09/02 85.03 83.58 5,524.23 OS/23/02 84.55 83.10 5,523.98 06/05/02 84.80 83.35 5,524.31 07/08/02 84..47 83.02 5,524.36 08/23/02 84.42 82.97 5,524.49 09/11102 84.29 82.84 5,524.71 10/23/02 84.07 82.62 5,524.60 11122/02 84.18 82.73 5,524.94 12/03/02 83.84 82.39 5,525.10 01109/03 83.68 82.23 Water Levels and Data over Time White Mesa Mill -Well TW 4-6 Total or Measuring Measured Total Total Water Land Point Depth to Depth to Depth Of Elevation Surface Elevation Length Of Date Of Water Water Well (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD) 5,607.33 5,608.78 1.450 98.55 5,525.15 02112/03 83.63 82.18 5,525.35 03/26/03 83.43 81.98 5,525.68 04/02/03 83.10 81.65 5,525.74 05/01103 83.04 81.59 5,525.98 06/09103 82.80 81.35 5,526.04 07/07/03 82.74 81.29 5,526.07 08/04/03 82.71 81.26 5,526.42 09111103 82.36 80.91 5,526.30 10102/03 82.48 81.03 5,526.41 11107/03 82.37 80.92 5,526.46 12/03/03 82.32 80.87 5,526.83 01115/04 81.95 80.50 5,526.81 02110104 81.97 80.52 5,527.14 03/28/04 81.64 80.19 5,527.39 04112/04 81.39 79.94 5,527.64 05/13/04 81.14 79.69 5,527.70 06/18/04 81.08 79.63 5,528.16 07/28/04 80.62 79.17 5,528.30 08/30104 80.48 79.03 5,528.52 09116/04 80.26 78.81 5,528.71 10/11/04 80.07 78.62 5,528.74 11116/04 80.04 78.59 5,529.20 12122/04 79.58 78.13 5,528.92 01118/05 79.86 78.41 5,529.51 02/28/05 79.27 77.82 5,529.74 03115/05 79.04 77.59 5,529.96 04/26/05 78.82 77.37 5,530.15 05/24/05 78.63 77.18 5,530.35 06/30105 78.43 76.98 5,530.47 07/29105 78.31 76.86 5,530.95 09112/05 77.83 76.38 5,531.50 12/07/05 77.28 75.83 5,532.43 03/08/06 76.35 74.90 5,533.49 06/13/06 75.29 73.84 5,532.58 07118/06 76.20 74.75 5,532.88 11107/06 75.90 74.45 5534.09 02/27/07 74.69 73.24 5,534.04 05/02/07 74.74 73.29 5,534.43 08114/07 74.35 72.90 5,554.54 10/10107 54.24 52.79 5,535.40 03/26/08 73.38 71.93 ·1 5,535.55 06/24/08 73.23 71.78 5,535.90 08/26/08 72.88 71.43 Water Levels and Data over Time White Mesa Mill -Well TW 4-6 Total or Measuring Measured Total Total Water Land Point Depth to Depth to Depth Of Elevation Surface Elevation Length Of Date Of Water Water Well (z) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD) 5,607.33 5,608.78 1.450 98.55 5,535.87 10114/08 72.91 71.46 5,536.42 03110109 72.36 70.91 5,536.71 06/24/09 72.07 70.62 5,536.83 09/10109 71.95 70.50 5,537.35 12111109 71.43 69.98 5,537.93 03111110 70.85 69.40 5,538.14 05111110 70.64 69.19 5,538.03 09/29110 70.75 69.30 5,538.04 12121110 70.74 69.29 5,537.98 02128111 70.8 69.35 5,538.46 06/21111 70.32 68.87 5,538.37 09/20111 70.41 68.96 5,538.87 12/21111 69.91 68.46 Water Levels and Data over Time White Mesa Mill -Well TW 4-7 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Depth Elevation Surface Elevation Length Of Date Of Water Water Of Well (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD) 5,619.87 5,621.07 1.20 119.8 5,552.37 11129/99 68.70 67.50 5,553.57 01102/00 67.50 66.30 5,553.87 01/10/00 67.20 66.00 5,553.72 01117/00 67.35 66.15 5,553.97 01124/00 67.10 65.90 5,553.87 02/01100 67.20 66.00 5,553.87 02/07/00 67.20 66.00 5,554.17 02/14/00 66.90 65.70 5,554.27 02/23/00 66.80 65.60 5,554.37 03/01100 66.70 65.50 5,554.37 03/08/00 66.70 65.50 5,554.27 03/15/00 66.80 65.60 5,554.77 03/20/00 66.30 65.10 5,554.57 03/29/00 66.50 65.30 5,554.27 04/04/00 66.80 65.60 5,554.57 04/13/00 66.50 65.30 5,554.77 04/21100 66.30 65.10 5,554.87 04/28/00 66.20 65.00 5,554.87 05/01100 66.20 65.00 5,555.27 05/11100 65.80 64.60 5,554.97 05/15/00 66.10 64.90 5,555.27 OS/25/00 65.80 64.60 5,555.33 06/09/00 65.74 64.54 5,555.45 06/16/00 65.62 64.42 5,555.22 06/26/00 65.85 64.65 5,555.45 07/06/00 65.62 64.42 5,555.40 07/13/00 65.67 64.47 5,555.45 07/18/00 65.62 64.42 5,555.59 07/27/00 65.48 64.28 5,555.65 08/02/00 65.42 64.22 5,555.70 08/09/00 65.37 64.17 5,555.74 08/16/00 65.33 64.13 5,555.96 08/31100 65.11 63.91 5,555.87 09/08/00 65.20 64.00 5,555.95 09/13/00 65.12 63.92 5,556.05 09/20/00 65.02 63.82 5,556.06 10/05/00 65.01 63.81 5,556.17 10/12/00 64.90 63.70 5,556.20 10/19/00 64.87 63.67 5,556.22 10/23/00 64.85 63.65 5,556.36 11109/00 64.71 63.51 5,556.42 11/14/00 64.65 63.45 5,556.45 11130/00 64.62 63.42 Water Levels and Data over Time White Mesa Mill -Well TW 4-7 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Depth Elevation Surface Elevation Length Of Date Of Water Water Of Well (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD) 5,619.87 5,621.07 1.20 119.8 5,556.15 12/06/00 64.92 63.72 5,556.89 01/14/01 64.18 62.98 5,557.07 02/09/01 64.00 62.80 5,557.62 03/29/01 63.45 62.25 5,557.51 04/30101 63.56 62.36 5,557.77 05/31/01 63.30 62.10 5,557.84 06/21/01 63.23 62.03 5,557.98 07/10101 63.09 61.89 5,558.33 08/20101 62.74 61.54 5,558.57 09/19/01 62.50 61.30 5,558.53 10102/01 62.54 61.34 5,558.62 11/08/01 62.45 61.25 5,559.03 12/03/01 62.04 60.84 5,559.08 01/03/02 61.99 60.79 5,559.32 02/06/02 61.75 60.55 5,559.63 03/26/02 61.44 60.24 5,559.55 04/09/02 61.52 60.32 5,560.06 05/23/02 61.01 59.81 5,559.91 06/05/02 61.16 59.96 5,560.09 07/08/02 60.98 59.78 5,560.01 08/23/02 61.06 59.86 5,560.23 09/11/02 60.84 59.64 5,560.43 10/23/02 60.64 59.44 5,560.39 11/22/02 60.68 59.48 5,560.61 12/03/02 60.46 59.26 5,560.89 01/09/03 60.18 58.98 5,560.94 02/12/03 60.13 58.93 5,561.28 03/26/03 59.79 58.59 5,561.35 04/02/03 59.72 58.52 5,546.20 05/01/03 74.87 73.67 5,539.47 06/09/03 81.60 80.40 5,541.87 07/07/03 79.20 78.00 5,542.12 08/04/03 78.95 77.75 5,541.91 09/11/03 79.16 77.96 5,544.62 10102/03 76.45 75.25 5,542.67 11/07/03 78.40 77.20 5,549.96 12/03/03 71.11 69:91 5,557.17 01/15/04 63.90 62.70 5,558.65 02/10104 62.42 61.22 5,559.90 03/28/04 61.17 59.97 5,560.36 04/12/04 60.71 59.51 5,560.87 05/13/04 60.20 59.00 5,560.95 06/18/04 60.12 58.92 Water Levels and Data over Time White Mesa Mill -Well TW 4-7 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Depth Elevation Surface Elevation Length Of Date Of Water Water Of Well (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD) 5,619.87 5,621.07 1.20 119.8 5,561.64 07/28/04 59.43 58.23 5,543.00 08/30104 78.07 76.87 5,541.91 09116104 79.16 77.96 5,540.08 10111/04 80.99 79.79 5,546.92 11116/04 74.15 72.95 5,546.97 12/22/04 74.10 72.90 5,546.51 01/18/05 74.56 73.36 5,546.66 02/28/05 74.41 73.21 5,546.81 03115/05 74.26 73.06 5,548.19 04/26105 72.88 71.68 5,547.11 05/24/05 73.96 72.76 5,546.98 06/30105 74.09 72.89 5,546.92 07/29/05 74.15 72.95 5,547.26 09112/05 73.81 72.61 5,547.26 12/07/05 73.81 72.61 5,548.86 03/08/06 72.21 71.01 5,548.62 06113/06 72.45 71.25 5,550.04 07118/06 71.03 69.83 5,548.32 11/07/06 72.75 71.55 5,550.44 02/27/07 70.63 69.43 5,549.69 05/02/07 71.38 70.18 5,549.97 08114/07 71.10 69.90 5,550.30 10110107 70.77 69.57 5,551.92 03/26108 69.15 67.95 5,552.94 06/24/08 68.13 66.93 5,552.34 08/26108 68.73 67.53 5,552.61 10114/08 68.46 67.26 5,552.81 03/10109 68.26 67.06 5,553.11 06/24/09 67.96 66.76 5,552.55 09110109 68.52 67.32 5,553.06 12111/09 68.01 66.81 5,554.64 03111/10 66.43 65.23 5,554.20 05111/10 66.87 65.67 5,553.45 09/29/10 67.62 66.42 5,553.40 12/21110 67.67 66.47 5,553.93 02/28111 67.14 65.94 5,553.67 06/21/11 67.4 66.26 5,553.46 09/20/11 67.61 66.41 5,553.78 12/21111 67.29 66.09 Water Levels and Data over Time White Mesa Mill -Well TW 4-8 Total or Measuring Measured Water Land Point Depth to Total Depth Total Elevation Surface Elevation Length Of Date Of Water to Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,616.80 5,621.40 4.60 126.00 5,546.40 11129/99 75.00 70.40 5,546.20 01102/00 75.20 70.60 5,546.50 01/10/00 74.90 70.30 5,546.30 01/17/00 75.10 70.50 5,546.60 01124/00 74.80 70.20 5,546.50 02/01100 74.90 70.30 5,546.50 02/07/00 74.90 70.30 5,546.90 02/14/00 74.50 69.90 5,546.95 02/23/00 74.45 69.85 5,547.05 03/01100 74.35 69.75 5,547.05 03/08/00 74.35 69.75 5,547.10 03/15/00 74.30 69.70 5,547.50 03/20/00 73.90 69.30 5,547.40 03/29/00 74.00 69.40 5,547.20 04/04/00 74.20 69.60 5,547.40 04/13/00 74.00 69.40 5,547.60 04/21100 73.80 69.20 5,547.70 04/28/00 73.70 69.10 5,547.70 05/01100 73.70 69.10 5,548.00 05/11100 73.40 68.80 5,547.70 05/15/00 73;70 69.10 5,547.90 OS/25/00 73.50 68.90 5,547.90 06/09/00 73.50 68.90 5,548.00 06/16/00 73.40 68.80 5,547.87 06/26/00 73.53 68.93 5,547.95 07/06/00 73.45 68.85 5,547.96 07/13/00 73.44 68.84 5,547.95 07/18/00 73.45 68.85 5,548.11 07/27/00 73.29 68.69 5,548.15 08/02/00 73.25 68.65 5,548.17 08/09/00 73.23 68.63 5,548.16 08/15/00 73.24 68.64 5,548.40 08/31/00 73.00 68.40 5,548.50 09/08/00 72.90 68.30 5,548.62 09/13/00 72.78 68.18 5,548.75 09/20/00 72.65 68.05 5,548.76 10/05/00 72.64 68.04 5,549.00 11109/00 72.40 67.80 5,548.85 12/06/00 72.55 67.95 5,549.47 01103/01 71.93 67.33 5,549.89 02/09/01 71.51 66.91 5,550.37 03/27/01 71.03 66.43 5,550.50 04/30/01 70.90 66.30 Water Levels and Data over Time White Mesa Mill -Well TW 4-8 Total or Measuring Measured Water Land Point Depth to Total Depth Total Elevation Surface Elevation Length Of Date Of Water to Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,616.80 5,621.40 4.60 126.00 5,550.68 05/31/01 70.72 66.12 5,550.68 06/20101 70.72 66.12 5,551.02 07/10101 70.38 65.78 5,551.32 08/20101 70.08 65.48 5,551.49 09/19101 69.91 65.31 5,551.64 10102/01 69.76 65.16 5,551.81 11/08/01 69.59 64.99 5,552.22 12/03/01 69.18 64.58 5,552.16 01/03/02 69.24 64.64 5,552.38 02/06/02 69.02 64.42 5,552.85 03/26/02 68.55 63.95 5,552.83 04/09102 68.57 63.97 5,553.20 05/23/02 68.20 63.60 5,553.16 06/05/02 68.24 63.64 5,553.32 07/08/02 68.08 63.48 5,553.49 08/23/02 67.91 63.31 5,553.69 09/11/02 67.71 63.11 5,554.09 10/23/02 67.31 62.71 5,554.02 11/22/02 67.38 62.78 5,554.23 12/03/02 67.17 62.57 5,554.43 01109103 66.97 62.37 5,554.42 02/12/03 66.98 62.38 5,551.71 03/26/03 66.69 62.09 5,554.83 04/02/03 66.57 61.97 5,552.21 05/01103 69.19 64.59 5,547.93 06/09103 73.47 68.87 5,546.97 07/07/03 74.43 69.83 5,546.58 08/04/03 74.82 70.22 5,546.24 09/11/03 75.16 70.56 5,546.38 10102/03 75.02 70.42 5,546.40 11/07/03 75.00 70.40 5,546.59 12/03/03 74.81 70.21 5,551.29 01/15/04 70.11 65.51 5,552.69 02/10104 68.71 64.11 5,554.06 03/28/04 67.34 62.74 5,554.52 04/12/04 66.88 62.28 5,555.06 05/13/04 66.34 61.74 5,555.11 06/18/04 66.29 61.69 5,555.88 07/28/04 65.52 60.92 5,552.97 08/30104 68.43 63.83 5,550.65 09/16/04 70.75 66.15 5,548.40 10/11/04 73.00 68.40 5,548.28 11/16/04 73.12 68.52 Water Levels and Data over Time White Mesa Mill -Well TW 4-8 Total or Measuring Measured Water Land Point Depth to Total Depth Total Elevation Surface Elevation Length Of Date Of Water to Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,616.80 5,621.40 4.60 126.00 5,548.80 12122104 72.60 68.00 5,548.43 01118/05 72.97 68.37 5,548.61 02128/05 72.79 68.19 5,548.64 03115/05 72.76 68.16 5,548.65 04/26/05 72.75 68.15 5,548.85 05124/05 72.55 67.95 5,548.73 06/30105 72.67 68.07 5,548.62 07/29/05 72.78 68.18 5,548.80 09112105 72.60 68.00 5,548.71 12107/05 72.69 68.09 5,549.72 03/08/06 71.68 67.08 5,549.70 06/13/06 71.70 67.10 5,549.70 07118/06 71.70 67.10 5,549.65 11107/06 71.75 67.15 5,551.11 02127/07 70.29 65.69 5,550.20 05/02107 71.20 66.60 5,550.59 08114/07 70.81 66.21 5,550.76 10110/07 70.64 66.04 5,551.95 03/26/08 69.45 64.85 5,552.36 06/24/08 69.04 64.44 5,552.50 08/26/08 68.9 64.30 5,552.56 10/14/08 68.84 64.24 5,552.91 03/03/09 68.49 63.89 5,553.27 06/24/09 68.13 63.53 5,553.12 09110109 68.28 63.68 5,553.63 12111109 67.77 63.17 5,554.65 03111110 66.75 62.15 5,554.57 05/11110 66.83 62.23 5,554.34 09/29110 67.06 62.46 5,554.09 12121110 67.31 62.71 5,554.50 02128/11 66.9 62.30 5,554.79 06/21111 66.61 62.01 5,554.63 09/20111 66.77 62.17 5,555.01 12121111 66.39 61.79 Water Levels and Data over Time White Mesa Mill -Well TW 4-9 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,636.11 5,637.59 1.48 121.33 5,577.09 12/20/99 60.5 59.02 5,577.09 01102/00 60.5 59.02 5,577.29 01110/00 60.3 58.82 5,577.09 01117/00 60.5 59.02 5,577.39 01124/00 60.2 58.72 5,577.29 02/01100 60.3 58.82 5,577.19 02/07/00 60.4 58.92 5,577.69 02114/00 59.9 58.42 5,577.69 02/23/00 59.9 58.42 5,577.79 03/01100 59.8 58.32 5,577.79 03/08/00 59.8 58.32 5,577.89 03115/00 59.7 58.22 5,568.49 03/20/00 69.1 67.62 5,578.14 03/29/00 59.45 57.97 5,577.84 04/04/00 59.75 58.27 5,578.04 04113/00 59.55 58.07 5,578.24 04/21100 59.35 57.87 5,578.39 04/28/00 59.2 57.72 5,578.39 05/01100 59.2 57.72 5,578.79 05111100 58.8 57.32 5,578.39 05115/00 59.2 57.72 5,578.79 OS/25/00 58.8 57.32 5,578.81 06/09/00 58.78 57.30 5,578.89 06116/00 58.7 57.22 5,578.74 06/26/00 58.85 57.37 5,578.86 07/06/00 58.73 57.25 5,578.87 07/13/00 58.72 57.24 5,578.84 07118/00 58.75 57.27 5,579.03 07/27/00 58.56 57.08 5,579.03 08/02/00 58.56 57.08 5,579.05 08/09/00 58.54 57.06 5,579.04 08115/00 58.55 57.07 5,579.25 08/31100 58.34 56.86 5,579.35 09/08/00 58.24 56.76 5,579.40 09113/00 58.19 56.71 5,579.46 09/20/00 58.13 56.65 5,579.44 10/05/00 58.15 56.67 5,579.79 11109/00 57.8 56.32 5,579.73 12/06/00 57.86 56.38 5,580.01 01103/01 57.58 56.10 5,580.30 02/09/01 57.29 55.81 5,580.66 03/27/01 56.93 55.45 5,580.75 04/30/01 56.84 55.36 Water Levels and Data over Time White Mesa Mill -Well TW 4-9 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,636.11 5,637.59 1.48 121.33 5,581.04 05/31101 56.55 55.07 5,581.12 06/21101 56.47 54.99 5,581.15 07/10101 56.44 54.96 5,581.51 08/20101 56.08 54.60 5,581.70 09/19/01 55.89 54.41 5,581.61 10102/01 55.98 54.50 5,581.83 11108/01 55.76 54.28 5,582.17 12/03/01 55.42 53.94 5,582.21 01103/02 55.38 53.90 5,582.57 02/06102 55.02 53.54 5,583.12 03/26102 54.47 52.99 5,582.77 04/09/02 54.82 53.34 5,583.21 OS/23/02 54.38 52.90 5,582.94 06105/02 54.65 53.17 5,582.71 07/08/02 54.88 53.40 5,583.67 08/23/02 53.92 52.44 5,583.82 09/11102 53.77 52.29 5,584.01 10/23/02 53.58 52.10 5,583.88 11122/02 53.71 52.23 5,583.81 12/03/02 53.78 52.30 5,584.28 01109/03 53.31 51.83 5,584.41 02/12/03 53.18 51.70 5,584.68 03/26103 52.91 51.43 5,584.49 04/02/03 53.10 51.62 5,584.51 05/01103 53.08 51.60 5,583.59 06109/03 54.00 52.52 5,582.96 07/07/03 54.63 53.15 5,582.98 08/04/03 54.61 53.13 5,582.57 09/11103 55.02 53.54 5,582.25 10102/03 55.34 53.86 5,582.09 11107/03 55.50 54.02 5,582.48 12/03/03 55.11 53.63 5,583.69 01115/04 53.90 52.42 5,583.89 02/10104 53.70 52.22 5,584.30 03/28/04 53.29 51.81 5,584.59 04/12/04 53.00 51.52 5,584.87 05/13/04 52.72 51.24 5,584.96 06/18/04 52.63 51.15 5,585.50 07/28/04 52.09 50.61 5,584.81 08/30104 52.78 51.30 5,584.40 09/16104 53.19 51.71 5,583.91 10/11104 53.68 52.20 5,583.39 11/16/04 54.20 52.72 Water Levels and Data over Time White Mesa Mill -Well TW 4-9 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,636.11 5,637.59 1.48 121.33 5,583.54 12/22/04 54.05 52.57 5,583.34 01118/05 54.25 52.77 5,583.66 02/28/05 53.93 52.45 5,583.87 03115/05 53.72 52.24 5,584.74 04/26/05 52.85 51.37 5,585.26 05/24/05 52.33 50.85 5,585.06 06/30105 52.53 51.05 5,584.67 07/29/05 52.92 51.44 5,584.75 09112/05 52.84 51.36 5,584.51 12/07/05 53.08 51.60 5,585.74 03/08/06 51.85 50.37 5,584.74 06/13/06 52.85 51.37 5,584.26 07118/06 53.33 51.85 5,584.21 11107/06 53.38 51.90 5,584.67 02/27/07 52.92 51.44 5,584.06 05/02/07 53.53 52.05 5,585.33 08114/07 52.26 50.78 5,585.42 10110107 52.17 50.69 5,587.01 03/26/08 50.58 49.10 5,585.44 06/24/08 52.15 50.67 5,585.23 08/26/08 52.36 50.88 5,584.42 10/14/08 53.17 51.69 5,583.59 03/03/09 54 52.52 5,583.35 06/24/09 54.24 52.76 5,582.91 09110109 54.68 53.20 5,583.43 12111109 54.16 52.68 5,584.00 03111110 53.59 52.11 5,583.27 05111110 54.32 52.84 5,582.92 09/29110 54.67 53.19 5,583.08 12/21110 54.51 53.03 5,582.63 02/28111 54.96 53.48 5,583.62 06/21111 53.97 52.49 5,583.52 09/20111 54.07 52.59 5,583.91 12/21111 53.68 52.20 Water Levels and Data over Time White Mesa Mill-Well TW4-10 Total or Measuring Measured Water Land Point Depth to Total Depth Total Elevation Surface Elevation Length Of Date Of Water to Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,631.99 5,634.24 2.25 111 5,576.75 01103/02 57.49 55.24 5,576.92 02/06102 57.32 55.07 5,577.43 03126102 56.81 54.56 5,577.22 04/09102 57.02 54.77 5,577.80 05/23/02 56.44 54.19 5,577.47 06105/02 56.77 54.52 5,577.55 07/08/02 56.69 54.44 5,578.10 08/23/02 56.14 53.89 5,578.24 09/11102 56.00 53.75 5,578.49 10123/02 55.75 53.50 5,578.43 11122/02 55.81 53.56 5,578.43 12/03/02 55.81 53.56 5,578.66 01109103 55.58 53.33 5,578.66 02/12/03 55.58 53.33 5,578.78 03/26103 55.46 53.21 5,578.90 04/02/03 55.34 53.09 5,578.83 05/01103 55.41 53.16 5,578.05 06109103 56.19 53.94 5,577.38 07 /07/03 56.86 54.61 5,577.15 08/04/03 57.09 54.84 5,576.76 09/11103 57.48 55.23 5,576.36 10102/03 57.88 55.63 5,576.05 11107/03 58.19 55.94 5,576.20 12/03/03 58.04 55.79 5,577.43 01/15/04 56.81 54.56 5,577.81 02/10104 56.43 54.18 5,578.47 03/28/04 55.77 53.52 5,578.69 04/12/04 55.55 53.30 5,578.93 05/13/04 55.31 53.06 5,578.99 06/18/04 55.25 53.00 5,579.18 07128/04 55.06 52.81 5,579.06 08/30104 55.18 52.93 5,578.78 09/16104 55.46 53.21 5,577.80 10/11104 56.44 54.19 5,577.13 11/16104 57.11 54.86 5,576.96 12122/04 57.28 55.03 5,576.63 01118/05 57.61 55.36 5,576.82 02/28/05 57.42 55.17 5,576.86 03/15/05 57.38 55.13 5,577.52 04126105 56.72 54.47 5,578.01 05/24/05 56.23 53.98 5,578.15 06/30105 56.09 53.84 5,577.90 07/29105 56.34 54.09 Water Levels and Data over Time White Mesa Mill -Well TW 4-10 Total or Measuring Measured Water Land Point Depth to Total Depth Total Elevation Surface Elevation Length Of Date Of Water to Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,631.99 5,634.24 2.25 111 5,578.02 09112/05 56.22 53.97 5,577.56 12/07/05 56.68 54.43 5,579.69 03/08/06 54.55 52.30 5,578.34 06/13/06 55.90 53.65 5,577.94 07118/06 56.30 54.05 5,578.01 11107/06 56.23 53.98 5578.43 02/27/07 55.81 53.56 5,577.84 05/02/07 56.40 54.15 5,578.74 08/14/07 55.50 53.25 5,579.04 10110107 55.20 52.95 5,580.69 03/26/08 53.55 51.30 5,579.87 06/24/08 54.37 52.12 5,579.47 08/26/08 54.77 52.52 5,578.87 10114/08 55.37 53.12 5,578.01 03110109 56.23 53.98 5,577.85 06/24/09 56.39 54.14 5,577.49 09110109 56.75 54.50 5,577.98 12/11109 56.26 54.01 5,578.38 03111110 55.86 53.61 5,578.16 05111110 56.08 53.83 5,577.85 09/29110 56.39 54.14 5,577.28 12/21110 56.96 54.71 5,577.14 02/28111 57.1 54.85 5,578.09 06/21111 56.15 53.90 5,578.24 09/20111 56 53.75 5,578.74 12/21111 55.5 53.25 Water Levels and Data over Time White Mesa Mill-Well TW4-11 Total or Measuring Measured Total Water Land Point -Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,621.92 5,623.62 1.70 100 5,548.32 01/03/02 75.30 73.60 5,548.73 02/06102 74.89 73.19 5,549.03 03/26102 74.59 72.89 5,548.84 04/09102 74.78 73.08 5,549.30 05123/02 74.32 72.62 5,549.01 06105/02 74.61 72.91 5,549.22 07/08/02 74.40 72.70 5,549.44 08/23/02 74.18 72.48 5,549.57 09/11/02 74.05 72.35 5,549.64 10/23/02 73.98 72.28 5,549.58 11/22/02 74.04 72.34 5,549.62 12/03/02 74.00 72.30 5,549.85 01/09103 73.77 72.07 5,549.91 02/12/03 73.71 72.01 5,550.15 03126103 73.47 71.77 5,550.01 04/02/03 73.61 71.91 5,550.31 05/01/03 73.31 71.61 5,550.44 06109103 73.18 71.48 5,550.33 07/07/03 73.29 71.59 5,550.35 08/04/03 73.27 71.57 5,550.44 09/11/03 73.18 71.48 5,550.47 10102/03 73.15 71.45 5,550.60 11/07/03 73.02 71.32 5,550.60 12/03/03 73.02 71.32 5,550.94 01/15/04 72.68 70.98 5,551.00 02/10104 72.62 70.92 5,550.34 03128/04 73.28 71.58 5,551.54 04/12/04 72.08 70.38 5,551.89 05/13/04 71.73 70.03 5,551.94 06/18/04 71.68 69.98 5,552.49 07128/04 71.13 69.43 5,552.74 08/30104 70.88 69.18 5,553.01 09/16104 70.61 68.91 5,553.11 10/11/04 70.51 68.81 5,553.19 11/16/04 70.43 68.73 5,553.53 12/22/04 70.09 68.39 5,553.31 01/18/05 70.31 68.61 5,553.84 02/28/05 69.78 68.08 5,554.04 03/15/05 69.58 67.88 5,554.23 04/26105 69.39 67.69 5,553.87 05124/05 69.75 68.05 5,554.46 06/30105 69.16 67.46 5,554.57 07/29105 69.05 67.35 Water Levels and Data over Time White Mesa Mill-Well TW4-11 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,621.92 5,623.62 1.70 100 5,553.86 09112/05 69.76 68.06 5,555.30 12/07/05 68.32 66.62 5,556.20 03/08/06 67.42 65.72 5,556.48 06/14/06 67.14 65.44 5,556.37 07118/06 67.25 65.55 5,556.94 11107/06 66.68 64.98 5557.92 02/27/07 65.70 64 5,557.84 05/02/07 65.78 64.08 5,558.02 08115/07 65.60 63.90 5,557.13 10/10107 66.49 64.79 5,569.74 03/26/08 53.88 52.18 5,561.01 06/24/08 62.61 60.91 5,562.07 08/26/08 61.55 59.85 5,562.47 10114/08 61.15 59.45 5,563.80 03110109 59.82 58.12 5,564.27 06/24/09 59.35 57.65 5,564.32 09/10109 59.30 57.60 5,564.70 12111109 58.92 57.22 5,565.14 03111110 58.48 56.78 5,565.61 05111110 58.01 56.31 5,565.67 09/29110 57.95 56.25 5,565.62 12/21110 58.00 56.30 5,565.42 02/28/11 58.20 56.50 5,566.01 06/21111 57.61 55.91 5,566.03 09/20/11 57.59 55.89 5,566.63 12/21111 56.99 55.29 Water Levels and Data over Time White Mesa Mill -Well TW 4-12 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,622.38 5,624.23 1.85 101.5 5,580.91 08/23/02 43.32 41.47 5,581.54 09111102 42.69 40.84 5,581.33 10123/02 42.90 41.05 5,581.47 11122102 42.76 40.91 5,581.55 12103/02 42.68 40.83 5,582.58 01109103 41.65 39.80 5,582.47 02112103 41.76 39.91 5,582.71 03/26/03 41.52 39.67 5,582.11 04/02103 42.12 40.27 5,582.92 05/01103 41.31 39.46 5,583.13 06/09103 41.10 39.25 5,583.21 07/07/03 41.02 39.17 5,583.31 08/04/03 40.92 39.07 5,583.55 09111103 40.68 38.83 5,583.72 10102/03 40.51 38.66 5,583.77 11107/03 40.46 38.61 5,584.01 12103/03 40.22 38.37 --------5-;5'84.37 01115/04 39.86 38.01 5,584.39 02110104 39.84 37.99 5,584.51 03/28/04 39.72 37.87 5,584.90 04112104 39.33 37.48 5,584.88 05/13/04 39.35 37.50 5,584.93 06/18/04 39.30 37.45 5,585.36 07128/04 38.87 37.02 5,585.38 08/30104 38.85 37.00 5,585.49 09116/04 38.74 36.89 5,585.85 10/11104 38.38 36.53 5,585.91 11116/04 38.32 36.47 5,586.35 12122/04 37.88 36.03 5,586.14 01118/05 38.09 36.24 5,586.56 02128/05 37.67 35.82 5,586.95 03115/05 37.28 35.43 5,587.20 04126/05 37.03 35.18 5,587.35 05/24/05 36.88 35.03 5,587.58 06/30105 36.65 34.80 5,587.58 07129105 36.65 34.80 5,587.94 09112105 36.29 34.44 5,588.43 12107/05 35.80 33.95 5,588.92 03/08/06 35.31 33.46 5,588.34 06/13/06 35.89 34.04 5,588.33 07118/06 35.90 34.05 5,584.70 11107/06 39.53 37.68 5588.85 02127/07 35.38 33.53 Water Levels and Data over Time White Mesa Mill -Well TW 4-12 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,622.38 5,624.23 1.85 101.5 5,588.53 05/02/07 35.70 33.85 5,586.49 08114/07 37.74 35.89 5,586.68 10110107 37.55 35.70 5,587.76 03/26108 36.47 34.62 5,587.59 06/24/08 36.64 34.79 5,587.35 08/26108 36.88 35.03 5,586.84 10114/08 37.39 35.54 5,586.17 03/03/09 38.06 36.21 5,585.74 06/24/09 38.49 36.64 5,585.54 09/10109 38.69 36.84 5,585.77 12111109 38.46 36.61 5,585.88 03111110 38.35 36.50 5,586.35 05/11110 37.88 36.03 5,585.68 09/29110 38.55 36.70 5,585.09 12/21110 39.14 37.29 5,584.65 02/28111 39.58 37.73 5,584.76 06/21111 39.47 37.62 5,584.32 09/20111 39.91 38.06 5,584.22 12/21111 40.01 38.16 Water Levels and Data over Time White Mesa Mill -Well TW 4-13 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,618.09 5,619.94 1.85 102.5 5,529.66 08/23/02 90.28 88.43 5,530.66 09/11102 89.28 87.43 5,529.10 10/23/02 90.84 88.99 5,530.58 11122/02 89.36 87.51 5,530.61 12/03/02 89.33 87.48 5,529.74 01109/03 90.20 88.35 5,531.03 02/12/03 88.91 87.06 5,531.82 03/26103 88.12 86.27 5,524.63 04/02/03 95.31 93.46 5,531.54 05/01103 88.40 86.55 5,538.46 06109/03 81.48 79.63 5,539.38 07/07/03 80.56 78.71 5,540.72 08/04/03 79.22 77.37 5,541.25 09/11103 78.69 76.84 5,541.34 10102/03 78.60 76.75 5,541.69 11107/03 78.25 76.40 5,541.91 12/03/03 78.03 76.18 5,542.44 01115/04 77.50 75.65 5,542.47 02/10104 77.47 75.62 5,542.84 03/28/04 77.10 75.25 5,543.08 04/12/04 76.86 75.01 5,543.34 05/13/04 76.60 74.75 5,543.40 06/18/04 76.54 74.69 5,544.06 07/28/04 75.88 74.03 5,544.61 08/30104 75.33 73.48 5,545.23 09/16104 74.71 72.86 5,546.20 10/11104 73.74 71.89 5,547.43 11116/04 72.51 70.66 5,548.96 12/22/04 70.98 69.13 5,549.02 01/18/05 70.92 69.07 5,550.66 02/28/05 69.28 67.43 5,551.26 03/15/05 68.68 66.83 5,552.23 04/26105 67.71 65.86 5,552.87 05124/05 67.07 65.22 5,553.42 06/30105 66.52 64.67 5,554.00 07129/05 65.94 64.09 5,555.21 09/12/05 64.73 62.88 5,558.13 12/07/05 61.81 59.96 5,562.93 03/08/06 57.01 55.16 5,564.39 06/13/06 55.55 53.70 5,562.09 07/18/06 57.85 56.00 5,565.49 11107/06 54.45 52.60 5571.08 02/27/07 48.86 47.01 Water Levels and Data over Time White Mesa Mill -Well TW 4-13 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,618.09 5,619.94 1.85 102.5 5,570.63 05/02/07 49.31 47.46 5,565.24 08114/07 54.70 52.85 5,565.83 10110107 54.11 52.26 5,569.29 03/26/08 50.65 48.80 5,570.00 06/24/08 49.94 48.09 5,570.41 08/26/08 49.53 47.68 5,570.64 10/14/08 49.30 47.45 5,570.43 03/03/09 49.51 47.66 5,570.56 06/24/09 49.38 47.53 5,570.42 09110109 49.52 47.67 5,571.15 12111109 48.79 46.94 5,572.01 03111110 47.93 46.08 5,572.88 05111110 47.06 45.21 5,573.17 09/29110 46.77 44.92 5,573.14 12/21110 46.80 44.95 5,573.10 02/28111 46.84 44.99 5,573.75 06/21111 46.19 44.34 5,573.63 09/20111 46.31 44.46 5,573.94 12/21111 46.00 44.15 Water Levels and Data over Time White Mesa Mill -Well TW 4-14 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,610.92 5,612.77 1.85 93 5,518.90 08/23/02 93.87 92.02 5,519.28 09/11102 93.49 91.64 5,519.95 10123/02 92.82 90.97 5,520.32 11122102 92.45 90.60 5,520.42 12103/02 92.35 90.50 5,520.70 01109103 92.07 90.22 5,520.89 02112103 91.88 90.03 5,521.12 03/26/03 91.65 89.80 5,521.12 04/02103 91.65 89.80 5,521.24 05/01103 91.53 89.68 5,521.34 06/09103 91.43 89.58 5,521.36 07/07/03 91.41 89.56 5,521.35 08/04/03 91.42 89.57 5,521.30 09111103 91.47 89.62 5,521.35 10102/03 91.42 89.57 5,521.36 11107/03 91.41 89.56 5,521.16 12103/03 91.61 89.76 5,521.29 01115/04 91.48 89.63 5,521.36 02110104 91.41 89.56 5,521.46 03/28/04 91.31 89.46 5,521.54 04112104 91.23 89.38 5,521.59 05/13/04 91.18 89.33 5,521.69 06118/04 91.08 89.23 5,521.71 07/28/04 91.06 89.21 5,521.76 08/30104 91.01 89.16 5,521.77 09116/04 91.00 89.15 5,521.79 10/11/04 90.98 89.13 5,521.80 11116/04 90.97 89.12 5,521.82 12122/04 90.95 89.10 5,521.82 01118/05 90.95 89.10 5,521.86 02128/05 90.91 89.06 5,521.85 03/15/05 90.92 89.07 5,521.91 04126/05 90.86 89.01 5,521.93 05/24/05 90.84 88.99 5,521.94 06/30105 90.83 88.98 5,521.84 07/29105 90.93 89.08 5,521.99 09112105 90.78 88.93 5,522.04 12107/05 90.73 88.88 5,522.05 03/08/06 90.72 88.87 5,522.27 06113/06 90.50 88.65 5,521.92 07118/06 90.85 89.00 5,520.17 11107/06 92.60 90.75 5522.24 02127/07 90.53 88.68 Water Levels and Data over Time White Mesa Mill-Well TW4-14 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,610.92 5,612.77 1.85 93 5,522.47 05/02/07 90.30 88.45 5,520.74 08114/07 92.03 90.18 5,518.13 10110107 94.64 92.79 5,522.85 03/26108 89.92 88.07 5,522.91 06/24/08 89.86 88.01 5,523.01 08/26108 89.76 87.91 5,522.96 10114/08 89.81 87.96 5,523.20 03/03/09 89.57 87.72 5,523.33 06124/09 89.44 87.59 5,523.47 09110109 89.30 87.45 5,523.54 12111/09 89.23 87.38 5,522.98 03111/10 89.79 87.94 5,524.01 05111110 88.76 86.91 5,524.37 09129110 88.40 86.55 5,524.62 12121/10 88.15 86.30 5,524.78 02128111 87.99 86.14 5,525.23 06/21111 87.54 85.69 5,525.45 09/20/11 87.32 85.47 5,525.72 12/21111 87.05 85.20 Water Levels and Data over Time White Mesa Mill-Well MW-26 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,624.15 5,625.45 1.30 121.33 5,574.75 08/23/02 50.70 49.40 5,574.97 09/11102 50.48 49.18 5,575.10 10/23/02 50.35 49.05 5,574.99 11122/02 50.46 49.16 5,575.28 12/03/02 50.17 48.87 5,575.41 01109/03 50.04 48.74 5,575.43 02/12/03 50.02 48.72 5,575.63 03/26/03 49.82 48.52 5,575.91 04/02/03 49.54 48.24 5,575.81 05/01103 49.64 48.34 5,572.36 06/09/03 53.09 51.79 5,570.70 07/07/03 54.75 53.45 5,570.29 08/04/03 55.16 53.86 5,560.94 09/11103 64.51 63.21 5,560.63 10102/03 64.82 63.52 5,560.56 11107/03 64.89 63.59 5,564.77 12/03/03 60 .68 59.38 5,570.89 01115/04 54.56 53.26 5,572.55 02/10104 52.90 51.60 5,574.25 03/28 /04 51.20 49.90 5,574.77 04/12/04 50.68 49.38 5,575.53 05/13/04 49.92 48.62 5,575.59 06/18/04 49.86 48.56 5,576.82 07/28/04 48.63 47.33 5,527.47 09/16/04 97.98 96.68 5,553.97 11116/04 71.48 70.18 5,562.33 12/22/04 63.12 61.82 5,550.00 01118/05 75.45 74.15 5,560.02 04/26/05 65.43 64.13 5,546.11 OS/24/05 79.34 78.04 5,556.71 06/30105 68.74 67.44 5,554.95 07/29/05 70.50 69.20 5,555.48 09/12/05 69.97 68.67 5,551.09 12/07/05 74.36 73.06 5,552.85 03/08/06 72.60 71.30 5,554.30 06/13/06 71.15 69.85 5,554.87 07/18/06 70.58 69.28 5,550.88 11107/06 74.57 73.27 5558.77 02/27/07 66.68 65.38 5,548.54 05/02/07 76.91 75.61 5,551.33 10/10107 74.12 72.82 5,545.56 03/26/08 79.89 78.59 5,545.56 06/25/08 79.89 78.59 Water Levels and Data over Time White Mesa Mill-Well MW-26 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,624.15 5,625.45 1.30 121.33 5,545.82 08/26/08 79.63 78.33 5,545.64 10114/08 79.81 78.51 5,544.45 03/03/09 81.00 79.70 5,545.32 06124/09 80.13 78.83 5,544.61 09110109 80.84 79.54 5,549.33 12111109 76.12 74.82 5,543.78 03111110 81.67 80.37 5,545.61 05111110 79.84 78.54 5,547.43 09129110 78.02 76.72 5,544.14 12/21110 81.31 80.01 5,546.77 02128111 78.68 77.38 5,537.60 06121111 87.85 86.55 5,551.46 09/20111 73.99 72.69 5,549.12 12121111 76.33 75.03 Water Levels and Data over Time White Mesa Mill-Well TW4-16 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,622.19 5,624.02 1.83 142 5,562.91 08/23/02 61.11 59.28 5,563.45 09111102 60.57 58.74 5,563.75 10/23/02 60.27 58.44 5,563.68 11122/02 60.34 58.51 5,563.68 12/03/02 60.34 58.51 5,564.16 01109103 59.86 58.03 5,564.25 02/12/03 59.77 57.94 5,564.53 03/26/03 59.49 57.66 5,564.46 04/02/03 59.56 57.73 5,564.79 05/01103 59.23 57.40 5,564.31 06/09103 59.71 57.88 5,563.29 07/07/03 60.73 58.90 5,562.76 08/04/03 61.26 59.43 5,561.73 09111103 62.29 60.46 5,561.04 10102/03 62.98 61.15 5,560.39 11107/03 63.63 61.80 5,559.79 12/03/03 64.23 62.40 5,561.02 01115/04 63.00 61.17 5,561.75 02/10104 62.27 60.44 5,562.98 03/28/04 61.04 59.21 5,563.29 04112/04 60.73 58.90 5,564.03 05113/04 59.99 58.16 5,564.09 06118/04 59.93 58.10 5,565.08 07/28/04 58.94 57.11 5,564.56 08/30104 59.46 57.63 5,563.55 09116/04 60.47 58.64 5,561.79 10/11/04 62.23 60.40 5,560.38 11116/04 63.64 61.81 5,559.71 12/22/04 64.31 62.48 5,559.14 01118/05 64.88 63.05 5,558.65 02/28/05 65.37 63.54 5,558.54 03115/05 65.48 63.65 5,558.22 04/26/05 65.80 63.97 5,558.54 05/24/05 . 65.48 63.65 5,559.24 06/30105 64.78 62.95 5,559.38 07/29105 64.64 62.81 5,559.23 09112/05 64.79 62.96 5,557.67 12/07/05 66.35 64.52 5,557.92 03/08/06 66.10 64.27 5,558.47 06113/06 65.55 63.72 5,558.42 07118/06 65.60 63.77 5,558.09 11107/06 65.93 64.10 5557.34 02/27/07 66.68 64.85 Water Levels and Data over Time White Mesa Mill-Well TW4-16 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,622.19 5,624.02 1.83 142 5,547.11 05/02/07 76.91 75.08 5,558.52 08114/07 65.50 63.67 5,559.02 10110107 65.00 63.17 5,561.04 03126/08 62.98 61.15 5,560.06 06/24/08 63.96 62.13 5,559.32 08/26/08 64.70 62.87 5,558.89 10114/08 65.13 63.30 5,558.40 03/03/09 65.62 63.79 5,558.32 06/24/09 65.70 63.87 5,558.03 09110109 65.99 64.16 5,558.81 12111109 65.21 63.38 5,559.80 03/11110 64.22 62.39 5,559.85 05111110 64.17 62.34 5,560.54 09/29110 63.48 61.65 5,558.65 12/21110 65.37 63.54 5,559.26 02/28111 64.76 62.93 5,560.48 06121111 63.54 61.71 5,561.52 09/20111 62.50 60.67 5,562.95 12/21111 61.07 59.24 Water Levels and Data over Time White Mesa Mill-Well MW-32 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,623.41 5,625.24 1.83 130.6 5,542.17 08/23/02 83.07 81.24 5,542.39 09/11102 82.85 81.02 5,542.61 10/23/02 82.63 80.80 5,542.49 11122/02 82.75 80.92 5,542.82 12/03/02 82.42 80.59 5,543.03 01109/03 82.21 80.38 5,543.04 02/12/03 82.20 80.37 5,543.41 03/26/03 81.83 80.00 5,543.69 04/02/03 81.55 79.72 5,543.77 05/01103 81.47 79.64 5,544.01 06/09/03 81.23 79.40 5,544.05 07/07/03 81.19 79.36 5,543.99 08/04/03 81.25 79.42 5,544.17 09/11103 81.07 79.24 5,544.06 10102/03 81.18 79.35 5,544.03 11107/03 81.21 79.38 5,543.94 12/03/03 81.30 79.47 5,543.98 01/15/04 81.26 79.43 5,543.85 02/10104 81.39 79.56 5,544.05 03/28/04 81.19 79.36 5,544.33 04/12/04 80.91 79.08 5,544.55 05/13/04 80.69 78.86 5,544.59 06/18/04 80.65 78.82 5,545.08 07/28/04 80.16 78.33 5,545.26 08/30104 79.98 78.15 5,545.48 09/16/04 79.76 77.93 5,545.61 10/11104 79.63 77.80 5,545.46 11/16/04 79.78 77.95 5,545.66 12/22/04 79.58 77.75 5,545.33 01118/05 79.91 78.08 5,545.51 02/28/05 79.73 77.90 5,545.57 03/15/05 79.67 77.84 5,545.46 04/26/05 79.78 77.95 5,545.45 OS/24/05 79.79 77.96 5,545.33 06/30105 79.91 78.08 5,545.16 07/29/05 80.08 78.25 5,545.54 09/12/05 79.70 77.87 5,545.77 12/07/05 79.47 77.64 5,546.09 03/08/06 79.15 77.32 5,545.94 06/13/06 79.30 77.47 5,545.94 07/18/06 79.30 77.47 5,546.24 11107/06 79.00 77.17 5546.81 02/27/07 78.43 76.6 Water Levels and Data over Time White Mesa Mill-Well MW-32 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,623.41 5,625.24 1.83 130.6 5546.56 05/02107 78.68 76.85 5546.81 08115/07 78.43 76.6 5546.96 10110/07 78.28 76.45 5547.9 03/26108 77.34 75.51 5548.08 06125/08 77.16 75.33 5548.42 08/26108 76.82 74.99 5548.05 10114/08 77.19 75.36 5548.29 03/03/09 76.95 75.12 5548.09 06124/09 77.15 75.32 5547.79 09110109 77.45 75.62 5548.09 12111109 77.15 75.32 5,548.50 03111110 76.74 74.91 5,548.89 05111110 76.35 74.52 5,548.83 09/29110 76.41 74.58 5,548.97 12121110 76.27 74.44 5,548.68 02128111 76.56 74.73 5,549.33 06121111 75.91 74.08 5,549.19 09120111 76.05 74.22 5,550.06 12121111 75.18 73.35 Water Levels and Data over Time White Mesa Mill-Well TW4-18 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,639.13 5,641.28 2.15 137.5 5,585.13 08/23/02 56.15 54.00 5,585.41 09/11102 55.87 53.72 5,585.47 10/23/02 55.81 53.66 5,585.40 11122/02 55.88 53.73 5,585.68 12/03/02 55.60 53.45 5,585.90 01109/03 55.38 53.23 5,590.79 02112/03 50.49 48.34 5,586.18 03/26/03 55.10 52.95 5,586.36 04/02/03 54.92 52.77 5,586.24 05/01103 55.04 52.89 5,584.93 06/09/03 56.35 54.20 5,584.46 07/07/03 56.82 54.67 5,584.55 08/04/03 56.73 54.58 5,584.01 09111103 57.27 55.12 5,583.67 10102/03 57.61 55.46 5,583.50 11107/03 57.78 55.63 5,584.08 12/03/03 57.20 55.05 5,585.45 01115/04 55.83 53.68 5,585.66 02110104 55.62 53.47 5,586.13 03/28/04 55.15 53.00 5,586.39 04112/04 54.89 52.74 5,586.66 05/13/04 54.62 52.47 5,586.77 06118/04 54.51 52.36 5,587.35 07/28/04 53.93 51.78 5,586.34 08/30104 54.94 52.79 5,585.85 09116/04 55.43 53.28 5,585.22 10111104 56.06 53.91 5,584.70 11116/04 56.58 54.43 5,584.81 12/22/04 56.47 54.32 5,584.68 01118/05 56.60 54.45 5,585.02 02/28/05 56.26 54.11 5,585.25 03/15/05 56.03 53.88 5,586.31 04/26/05 54.97 52.82 5,586.97 05/24/05 54.31 52.16 5,586.58 06/30105 54.70 52.55 5,586.10 07/29/05 55.18 53.03 5,586.05 09112/05 55.23 53.08 5,585.86 12/07/05 55.42 53.27 5,587.13 03/08/06 54.15 52.00 5,585.93 06113/06 55.35 53.20 5,585.40 07118/06 55.88 53.73 5,585.38 11107/06 55.90 53.75 5585.83 02/27/07 55.45 53.30 Water Levels and Data over Time White Mesa Mill-Well TW4-18 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,639.13 5,641.28 2.15 137.5 5585.15 05/02/07 56.13 53.98 5586.47 06/24/08 54.81 52.66 5586.3 08/26/08 54.98 52.83 5585.21 10/14/08 56.07 53.92 5584.47 03/03/09 56.81 54.66 5584.35 06/24/09 56.93 54.78 5583.88 09/10109 57.4 55.25 5584.43 12/11109 56.85 54.70 5,585.26 03/11/10 56.02 53.87 5,584.17 05/11110 57.11 54.96 5,583.61 09/29/10 57.67 55.52 5,604.29 12/21110 36.99 34.84 5,583.56 02/28/11 57.72 55.57 5,584.73 06/21111 56.55 54.40 5,584.71 09/20/11 56.57 54.42 5,585.03 12/21111 56.25 54.10 Water Levels and Data over Time White Mesa Mill -Well TW 4-19 Total or Measuring Measured Water Land Point Depth to Total Depth Elevation Surface Elevation Length Of Date Of Water to Water Total Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,629.53 5,631.39 1.86 121.33 5,581.88 08/23/02 49.51 47.65 5,582.14 09/11102 49.25 47.39 5,582.06 10/23/02 49.33 47.47 5,582.07 11122/02 49.32 47.46 5,582.16 12/03/02 49.23 47.37 5,582.28 01109103 49.11 47.25 5,582.29 02/21103 49.10 47.24 5,582.74 03/26/03 48.65 46.79 5,582.82 04/02/03 48.57 46.71 5,548.47 05/01103 82.92 81.06 5,564.76 06/09103 66.63 64.77 5,562.53 07/07/03 68.86 67.00 5,564.10 08/04/03 67.29 65.43 5,566.01 08/30104 65.38 63.52 5,555.16 09/16/04 76.23 74.37 5,549.80 10/11104 81.59 79.73 5,546.04 11116/04 85.35 83.49 5,547.34 12/22/04 84.05 82.19 5,548.77 01/18/05 82.62 80.76 5,551.18 02/28/05 80.21 78.35 5,556.81 03/15/05 74.58 72.72 5,562.63 04/26/05 68.76 66.90 5,573.42 05/24/05 57.97 56.11 5,552.94 07/29105 78.45 76.59 5,554.00 09/12/05 77.39 75.53 5,555.98 12/07/05 75.41 73.55 5,552.00 03/08/06 79.39 77.53 5,545.74 06/13/06 85.65 83.79 5,544.06 07/18/06 87.33 85.47 5,548.81 11107/06 82.58 80.72 5543.59 02/27/07 87.80 85.94 5544.55 05/02/07 86.84 84.98 5558.97 08/15/07 72.42 70.56 5559.73 10/10107 71.66 69.8 5569.26 03/26/08 62.13 60.27 5535.47 06/25/08 95.92 94.06 5541.41 08/26/08 89.98 88.12 5558.45 10/14/08 72.94 71.08 5536.9 03/03/09 94.49 92.63 5547.76 06/24/09 83.63 81.77 5561.48 09/10109 69.91 68.05 5548.14 12/11/09 83.25 81.39 5,570.58 03/11110 60.81 58.95 Water Levels and Data over Time White Mesa Mill -Well TW 4-19 Total or Measuring Measured Water Land Point Depth to Total Depth Elevation Surface Elevation Length Of Date Of Water to Water Total Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,629.53 5,631.39 1.86 121.33 5,561.35 05/11110 70.04 68.18 5,535.26 09/29110 96.13 94.27 5,568.40 12/21110 62.99 61.13 5,550.36 02/28111 81.03 79.17 5,570.41 06/21111 60.98 59.12 5,567.84 09/20111 63.55 61.69 5,571.32 12/21111 60.07 58.21 Water Levels and Data over Time White Mesa Mill -Well TW 4-20 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,628.52 5,629.53 1.01 106.0 5,565.70 07129/05 63.83 62.82 5,546.53 08/30/05 83.00 81.99 5,540.29 09112/05 89.24 88.23 5,541.17 12/07/05 88.36 87.35 5,540.33 03/08/06 89.20 88.19 5,530.43 06113/06 99.10 98.09 5,569.13 07118/06 60.40 59.39 5,547.95 11107/06 81.58 80.57 5,549.25 02127/07 80.28 79.27 5,550.58 05/02/07 78.95 77.94 5,563.60 08114/07 65.93 64.92 5,555.85 10110/07 73.68 72.67 5,569.10 03/26/08 60.43 59.42 5,560.00 06/25/08 69.53 68.52 5,539.64 08/26/08 89.89 88.88 5,539.51 10114/08 90.02 89.01 5,553.00 03/03/09 76.53 75.52 5,534.18 06124/09 95.35 94.34 5,558.39 09/10/09 71.14 70.13 5,560.99 12/11109 68.54 67.53 5,564.09 03111110 65.44 64.43 5,564.22 05111110 65.31 64.30 5,560.33 09/29/10 69.20 68.19 5,561.35 12121110 68.18 67.17 5,560.18 02/28111 69.35 68.34 5,576.23 06/21111 53.30 52.29 Water Levels and Data over Time White Mesa Mill-Well TW4-21 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,638.20 5,639.35 1.15 120.92 5,582.98 07/29105 56.37 55.22 5,583.43 08/30105 55.92 54.77 5,581.87 09112/05 57.48 56.33 5,580.50 12/07/05 58.85 57.70 5,583.64 03/08/06 55.71 54.56 5,580.55 06113/06 58.80 57.65 5,578.95 07118/06 60.40 59.25 5,578.47 11107/06 60.88 59.73 5,579.53 02/27/07 59.82 58.67 5,578.07 05/02/07 61.28 60.13 5,583.41 08115/07 55.94 54.79 5,583.45 10/10107 55.90 54.75 5,586.47 03/26/08 52.88 51.73 5,579.16 06/24/08 60.19 59.04 5,579.92 08/26/08 59.43 58.28 5,577.37 10114/08 61.98 60.83 5,578.00 03110109 61.35 60.20 5,580.14 06/24/09 59.21 58.06 5,578.72 09110109 60.63 59.48 5,579.99 12111109 59.36 58.21 5,582.81 03111110 56.54 55.39 5,582.23 05111110 57.12 55.97 5,576.60 09/29/10 62.75 61.60 5,581.14 12121110 58.21 57.06 5,579.53 02/28111 59.82 58.67 5,584.17 06/21111 55.18 54.03 5,584.80 09/20111 54.55 53.40 5,585.68 12/21111 53.67 52.52 Water Levels and Data over Time White Mesa Mill-Well TW4-22 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,627.83 5,629.00 1.17 113.5 5,571.89 07/29/05 57.11 55.94 5,572.20 08/30105 56.80 55.63 5,572.08 09112/05 56.92 55.75 5,571.61 12/07/05 57.39 56.22 5,571.85 03/08/06 57.15 55.98 5,571.62 06113/06 57.38 56.21 5,571.42 07118/06 57.58 56.41 5,571.02 11107/06 57.98 56.81 5571.24 02127/07 57.76 56.59 5,570.75 06/29/07 58.25 57.08 5,571.82 08114/07 57.18 56.01 5,571.99 10110107 57.01 55.84 5,573.05 03/26/08 55.95 54.78 5,573.04 06/24/08 55.96 54.79 5,573.04 08/26/08 55.96 54.79 5,573.02 10114/08 55.98 54.81 5,573.19 03110109 55.81 54.64 5,573.32 06/24/09 55.68 54.51 5,573.17 09110109 55.83 54.66 5,573.52 12111109 55.48 54.31 5,573.88 03111110 55.12 53.95 5,574.29 05111110 54.71 53.54 5,574.88 09/29110 54.12 52.95 5,574.44 12/21110 54.56 53.39 5,574.49 02128111 54.51 53.34 5,574.97 06/21111 54.03 52.86 5,575.06 09/20/11 53.94 52.77 5,575.69 12/21111 53.31 52.14 Water Levels and Data over Time White Mesa Mill-Well TW4-23 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,605.77 5,607.37 1.60 113.5 5,538.89 09/13/07 68.48 66.88 5,538.80 10110107 68.57 66.97 5,539.25 11130107 68.12 66.52 5,539.49 12/11107 67.88 66.28 5,539.19 01108/08 68.18 66.58 5,539.44 02/18/08 67.93 66.33 5,539.54 03/26108 67.83 66.23 5,539.71 04/23/08 67.66 66.06 5539.48 05/30108 67.89 66.29 5,539.53 06/24/08 67.84 66.24 5,539.44 07116108 67.93 66.33 5,539.68 08/26108 67.69 66.09 5,541.18 09/10108 66.19 64.59 5,539.57 10/14/08 67.80 66.20 5,539.29 11126108 68.08 66.48 5,539.55 12/29108 67.82 66.22 5,540.15 01126109 67.22 65.62 5,539.74 02/24/09 67.63 66.03 5,539.86 03/06109 67.51 65.91 5,539.72 04/07/09 67.65 66.05 ·5,539.84 OS/29109 67.53 65.93 5,540.12 06/30109 67.25 65.65 5,540.12 07/31109 67.25 65.65 5,540.27 08/31109 67.10 65.50 5,540.13 09110109 67.24 65.64 5,540.64 12111109 66.73 65.13 5,541.15 03111110 66.22 64.62 5,541.61 05111110 65.76 64.16 5,541.47 09/29/10 65.90 64.30 5,541.54 12/21110 65.83 64.23 5,541.54 02/28111 65.83 64.23 5,541.98 06/21111 65.39 63.79 5,541.90 09/20111 65.47 63.87 Water Levels and Data over Time White Mesa Mill -Well TW 4-24 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,625.70 5,627.83 2.13 113.5 5,570.61 09/13/07 57.22 55.09 5,570.53 10110107 57.30 55.17 5,571.16 11130107 56.67 54.54 5,571.30 12111107 56.53 54.40 5,571.03 01108/08 56.80 54.67 5,571.22 02118/08 56.61 54.48 5,571.43 03/26/08 56.40 54.27 5,571.68 04/23 /08 56.15 54.02 5571.52 05/30108 56.31 54.18 5,571.34 06/24/08 56.49 54.36 5,571.28 07116/08 56.55 54.42 5,571.34 08/26/08 56.49 54.36 5,571.23 09110108 56.60 54.47 5,571.12 10114/08 56.71 54.58 5,570.95 11126/08 56.88 54.75 5,570.92 12/29108 56.91 54.78 5,571.65 01126/09 56.18 54.05 5,571.31 02/24/09 56.52 54.39 5,571.37 03/06/09 56.46 54.33 5,571.21 04/07/09 56.62 54.49 5,571.23 05/29109 56.60 54.47 5,571.42 06/30109 56.41 54.28 5,571.38 07/31109 56.45 54.32 5,571.48 08/31109 56.35 54.22 5,571.28 09110109 56.55 54.42 5,571.64 12/11/09 56.19 54.06 5,571.86 03111110 55.97 53.84 5,571.91 05111110 55.92 53.79 5,572.18 09/29110 55.65 53.52 5,571.86 12/21110 55.97 53.84 5,571.78 02/28111 56.05 53.92 5,572.40 06/21111 55.43 53.30 5,572.19 09/20111 55.64 53.51 5,573.02 12/21111 54.81 52.68 Water Levels and Data over Time White Mesa Mill -Well TW 4-25 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,627.83 5,644.91 17.08 134.8 5,601.86 09113/07 43.05 25.97 5,601.89 10110107 43.02 25.94 5,602.57 11130107 42.34 25.26 5,602.82 12111107 42.09 25.01 5,601.94 01108/08 42.97 25.89 5,599.13 02118/08 45.78 28.70 5,597.11 03/26108 47.80 30.72 5,595.51 04/23/08 49.40 32.32 5594.42 05/30108 50.49 33.41 5,594.26 06/24/08 50.65 33.57 5,586.67 07116108 58.24 41.16 5,594.17 08/26108 50.74 33.66 5,594.23 09110108 50.68 33.60 5,594.12 10114/08 50.79 33.71 5,594.06 11/26108 50.85 33.77 5,594.87 12/29/08 50.04 32.96 5,595.89 01126109 49.02 31.94 5,596.27 02/24/09 48.64 31.56 5,596.47 03/06109 48.44 31.36 5,596.74 04/07/09 48.17 31.09 5,597.55 OS/29/09 47.36 30.28 5,598.11 06/30109 46.80 29.72 5,598.22 07/31109 46.69 29.61 5,598.52 08/31109 46.39 29.31 5,598.49 09/10109 46.42 29.34 5,599.48 12111109 45.43 28.35 5,599.75 03/11110 45.16 28.08 5,599.63 05111110 45.28 28.20 5,598.68 09/29110 46.23 29.15 5,598.66 12/21110 46.25 29.17 5,598.18 02/28111 46.73 29.65 5,598.61 06/21111 46.30 29.22 5,598.08 09/20111 46.83 29.75 Water Levels and Data over Time White Mesa Mill-Well TW4-26 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,599.98 5,601.68 1.70 86 5,536.90 06114110 64.78 63.08 5,536.95 09/29110 64.73 63.03 5,537.17 12/21110 64.51 62.81 5,537.16 02/28111 64.52 62.82 5,537.57 06/21111 64.11 62.41 5,537.59 09/20111 64.09 62.39 5,538.16 12/21111 63.52 61.82 · Water Levels and Data over Time White Mesa Mill-Well TW4-27 Total or Measuring Measured Total Water Land Point Depth to Depth to Total Elevation Surface Elevation Length Of Date Of Water Water Depth Of (WL) (LSD) (MP) Riser (L) Monitoring (blw.MP) (blw.LSD) Well 5,606.19 5,607.94 1.75 96 5,517.78 12/21/11 90.16 88.41 TabH Laboratory Analytical Reports EI\ERGY LABORATORIES www.energylab.com Analytical ExCSllsnCB Sincs 1952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WI( 888-235-0515 .Gillette, WY 866-686-7175 • Rapid Cfty, SD 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 4th Quarter Chloroform 2011 Lab ID: C11110773-024 Client Sample ID: MW-4 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: T oluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 40 5.1 1.3 1600 ND ND 108 129 108 114 D -Rl increased due to sample matrix. Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 11/16/11 12:35 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date 1 By A4500-CI B 12/05/11 14:271 wc D 0.5 E353.2 11/21/1114:05/dc 1.0 SW8260B 11/29/1105:13/jlr D 100 SW8260B 11/29/1122:11/mdr 1.0 SW8260B 11/29/1105:13/jlr 1.0 SW8260B 11/29/1105:13/jlr 80-120 SW8260B 11/29/1105:13/jlr 70-130 SW8260B 11/29/1105:13/jlr 80-120 SW8260B 11/29/1105:13/jlr 80-120 SW8260B 11/29/1105:13/jlr MCl -Maximum contaminant level. ND ~ Not detected at the reporting limit. Page 27 of 43 -----------no EN:RGY ~BORATORIES www.energylab.com Analytical ExcsllsncB Sines '952 f" Helena, MT 877-472-0711 • Billings, MT 800-735-4489 · Casper, WY 888-235-0515 -Gillette, WY 866-686-7115 • Rapid City, SD 888-672-1225 • College Station, lX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp 4th Quarter Chloroform 2011 C 11120053-003 Client Sample 10: TW4-01 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 37 6.6 ND 1300 ND ND 102 114 101 109 D -Rl increased due to sample matrix. Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 11/29/1112:15 DateReceived: 12/02/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date / By 1 A4500-CI B 12/05/1116:16/wc D 0.5 E353.2 12/06/11 13:411 dc 1.0 SW8260B 12/07/11 02:51 1 mdr D 100 SW8260B 12/06/11 18:591 mdr 1.0 SW8260B 12/07/11 02:51 1 mdr 1.0 SW8260B 12/07/11 02:51 1 mdr 80-120 SW8260B 12/07/11 02:51 1 mdr 70-130 SW8260B 12/07/11 02:51 1 mdr 80-120 SW8260B 12/07/11 02:51 1 mdr 80-120 SW8260B 12/07/11 02:51 1 mdr MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 5 of 13 EN:RGY LABORATORIES www.energylab.com Analytical fxcsllsncB Sines '152 Helena. MT 877-472-0711 • Billings, MT 800-735-4489 11 Casper, WY 888-235-0515 _~illette, WY 866-686-7175 (II Rapid Cit1. SD 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab ID: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11120053-004 Client Sample ID: TW4-02 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-dB Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 49 7.0 2.B 3900 ND ND 109 11B 10B 112 D -Rl increased due to sample matrix. Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 11/29/11 12:25 DateReceived: 12/02/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date 1 By 1 A4500-CI B 12/05/11 16:191 wc D 0.5 E353.2 12/06/1113:43/dc 1.0 SWB260B 12/07/11 03:27 1 mdr D 100 SWB260B 12/06/11 19:351 mdr 1.0 SWB260B 12/07/11 03:27 1 mdr 1.0 SWB260B 12/07/11 03:271 mdr BO-120 SWB260B 12/07/11 03:271 mdr 70-130 SWB260B 12/07/11 03:27 1 mdr BO-120 SWB260B 12/07/11 03:271 mdr BO-120 SWB260B 12/07/11 03:271 mdr MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 6 of 13 www.energylab.com Analytical Excsl/snell Sines 1952 Helella, MT 811-472-0111 • Billings, MT 806-735-4489 • Casper, WY 888-235-0515 ~mette, WY eGG-GSG-1l75 • Rapid City, SD 888-672-1225 e College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: LablD: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-003 Client Sample ID: TW4-3 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-dS Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 23 4.4 ND ND ND ND 139 109 104 SS.O D -Rl increased due to sample matrix. Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 11/15/11 08:21 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date 1 By A4500-CI B 12/02/11 09:531 wc D 0.5 E353.2 11/21/11 12:501 dc 1.0 SWS260B 11/23/11 20 :59 1 mdr 1.0 SWS260B 11/23/11 20:591 mdr 1.0 SW8260B 11/23/11 20 :59 1 mdr 1.0 SW8260B 11/23/11 20:591 mdr S SO-120 SWS260B 11/23/11 20:591 mdr 70-130 SWS260B 11/23/11 20:591 mdr SO-120 SWS260B 11/23/11 20:591 mdr SO-120 SW8260B 11/23/11 20:591 mdr MCl -Maximum contaminant level. ND -Not detected at the reporting limit. S -Spike recovery outside of advisory limits. Page 6 Of 43 'EN2RGY. LABORATORIES -. -----'--rm" www.energylab.com Analytical Excsl/Bflea Sines '952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 ~iII~tte, WY 866~6B6-7175 • Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab lD: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-001 Client Sample ID: TW4-3R Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride 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 128 96.0 107 91.0 Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC S -Spike recovery outside of advisory limits. Report Date: 12/21/11 Collection Date: 11/14/11 07:05 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date 1 By A4500-CI B 12/02/11 09:501 wc 0.1 E353.2 11/21/11 12:401 dc 1.0 SW8260B 11/23/1119:47/mdr 1.0 SW8260B 11/23/1119:47/mdr 1.0 SW8260B 11/23/11 19:471 mdr 1.0 SW8260B 11/23/11 19:47 1 mdr S 80-120 SW8260B 11/23/1119:47/mdr 70-130 SW8260B 11/23/1119:47/mdr 80-120 SW8260B 11/23/1119:47/mdr 80-120 SW8260B 11/23/1119:47/mdr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 4 of43 Helena, MT 877-472 .. 0111 • Billings, MT 800-735-4489 " Casper, WY 888-235-0515 ,Gillette, WY 866-686-7175 • Rapid City, SO 888-612-1225 It College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 4th Quarter Chloroform 2011 Lab ID: C11110773-025 Client Sample ID: TW4-4 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 39 7 1.0 1500 ND ND 105 126 110 116 D -Rl increased due to sample matrix. Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 11/16/11 12:45 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date 1 By A4500-CI B 12/05/11 14:321 wc D E353.2 11/21/1 1 14:08/dc 1.0 SW8260B 11/29/11 05:481 jlr D 100 SW8260B 11/29/11 22:461 mdr 1.0 SW8260B 11/29/1105:48/jlr 1.0 SW8260B 11/29/11 05 :48 1 jlr 80-120 SW8260B 11/29/11 05 :48 1 jlr 70-130 SW8260B 11/29/11 05 :48 1 jlr 80-120 SW8260B 11/29/11 05 :48 1 jlr 80-120 SW8260B 11/29/11 05:48 1 jlr MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 28 of 43 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 866-686-7175 .. Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab ID: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-015 Client Sample ID: TW4-5 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 30 6 D -Rl increased due to sample matrix. Units mg/l mg/l Report Date: 12/21/11 Collection Date: 11/16/11 07:53 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date / By A4500-CI B 12/02/1114:10/wc D E353.2 11/21/11 13 :30 1 dc MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 18 of 43 EN:RGY L.ABORATORIES www.energylab.com Analytical ExcsllsncB Sines '952 r:;-.... ~ . Jj~' Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 :~illej:te, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: LablD: 4th Quarter Chloroform 2011 Resample C11120292-008 Client Sample ID: TW4-05 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride 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 7.9 ug/l NO ug/l NO ug/l 108 %REC 114 %REC 107 %REC 96.0 %REC Qualifier Rl 1.0 1.0 1.0 1.0 80-120 70-130 80-120 80-120 Report Date: 12/21/11 Collection Date: 12/07/11 13:30 DateReceived: 12/09/11 Matrix: Aqueous MCL! QCl Method Analysis Date / By SW8260B 12/09/11 23:25 / jlr SW8260B 12/09/11 23:25 / jlr SW8260B 12/09/11 23:25/ jlr SW8260B 12/09/11 23:25/ jlr SW8260B 12/09/11 23:25 / jlr SW8260B 12/09/11 23:25 / jlr SW8260B 12/09/11 23:25 / jlr SW8260B 12/09/11 23:25/ jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 10 of 23 EI\ERGY LABORATORIES www.energylab.com Analytical ExcsllsncB Sines 1952 Helena, MT 877-472-071 t • Billings, MT 800-135-4489 • Casper, WY 888-235-0515 9iUette, WY 866-686-7175 • Rapid Citv, 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 4th Quarter Chloroform 2011 C11110773-016 Client Sample 10: TW4-6 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 36 0.8 Units mg/l mg/l Qualifier Rl 0.1 Report Date: 12/21/11 Collection Date: 11/16/11 08:02 DateReceived: 11/18/11 Matrix: Aqueous MCL! QCl Method Analysis Date 1 By A4500-CI B 12/02/1114:12/wc E353.2 11/21/11 13 :33 1 dc MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 19 of 43 EI\ERGY LABORATORI ES www.energylab.com Analytical ExcsllBflcB Sines 1952 Helella, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WV 888-235-0515 '~illette, WY 866-686-7115 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab 10: 4th Quarter Chloroform 2011 Resample C 11120292-009 Client Sample 10: TW4-06 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: T oluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units NO ug/l 21 ug/l NO ug/l NO ug/l 107 %REC 113 %REC 106 %REC 99.0 %REC Qualifier Rl 1.0 1.0 1.0 1.0 80-120 70-130 80-120 80-120 Report Date: 12/21/11 Collection Date: 12/07/11 13:37 DateReceived: 12/09/11 Matrix: Aqueous MCL! QCl Method Analysis Date / By SW8260B 12/10/11 00:001 jlr SW8260B 12/10/11 00:001 jlr SW8260B 12/10/11 00:001 jlr SW8260B 12/10/11 00:001 jlr SW8260B 12/10/11 00:001 jlr SW8260B 12/10/11 00:001 jlr SW8260B 12/10/11 00:001 jlr SW8260B 12/10/11 00:001 jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 11 Of 23 EI\ERGY LABORATORIES www.energylab.com Analytical [xesl/snCB Sines ,fJ52 ~ I': .... )' Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WV 888-235-0515 ~Jlletfe, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: LablD: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11120053-002 Client Sample ID: TW4-07 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-dS Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 37 3.S ND 1000 ND ND 101 10S 104 112 D -Rl increased due to sample matrix. Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 11/29/11 12:06 DateReceived: 12/02/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date 1 By A4500-CI B 12/05/1116:14/wc D 0.5 E353.2 12/06/11 13:3S 1 dc 1.0 SW8260B 12/07/1102:15/mdr D 100 SWS260B 12/06/11 1S :22 1 mdr 1.0 SWS260B 12/07/11 02:151 mdr 1.0 SWS260B 12/07/11 02:151 mdr 80-120 SWS260B 12/07/11 02:151 mdr 70-130 SWS260B 12/07/1102:15/mdr SO-120 SWS260B 12/07/11 02:151 mdr SO-120 SWS260B 12/07/11 02:151 mdr MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 4 of 13 EN:,RGY LABORATORIES ---m>JN WWN.energylab.com Analytical ExcsllsncB Sines 1952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 " Casper, WY 888-235-0515 ~Ul~ti:e, Wy 866-686-7175 • 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 4th Quarter Chloroform 2011 C11120053-001 Client Sample ID: TW4-07R Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride 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 102 105 106 114 Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC Qualifier Rl 0.1 1.0 1.0 1.0 1.0 80-120 70-130 80-120 80-120 Report Date: 12/21/11 Collection Date: 11/28/11 06:58 DateReceived: 12/02/11 Matrix: Aqueous MCL! QCl Method Analysis Date 1 By A4500-CI B 12/05/1116:13/wc E353.2 12/06/11 13:361 dc SW8260B 12/07/11 01 :38 1 mdr SW8260B 12/07/11 01 :38 1 mdr SW8260B 12/07/11 01 :38 1 mdr SW8260B 12/07/11 01 :38 1 mdr SW8260B 12/07/11 01 :38 1 mdr SW8260B 12/07/11 01 :38 1 mdr SW8260B 12/07/11 01 :38 1 mdr SW8260B 12/07/11 01 :38 1 mdr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 3 of 13 ---_._---,----- Helena, MT 871-472-0711 -Billings, MT 800-735-4489 • Casper, WY 888-235-0515 ~iUetta, Wy 866~686-7175 " Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab ID: Denison Mines USA Corp 4th Quarter Chloroform 2011 C1111 0773-01 0 Client Sample ID: TW4-8 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 45 0.2 Units mg/l mg/l Qualifier RL 0.1 Report Date: 12/21/11 Collection Date: 11/16/11 06:57 DateReceived: 11/18/11 Matrix: Aqueous MCL! QCL Method Analysis Date 1 By A4500-CI B 12/02/11 10:131 wc E353.2 11/21/1113:0S/dc MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 13 of 43 rJ!if www~ .. r&ylab."m r-Helena, MT 877472-0711 • Billing~ MT 800-735-4489 • Casper, WY 888-235-0515 -~ Analytical Excsllsnce Sines 1952 J:,~~,.~illette, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 EI\ERGY LABORATORIES -------- LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab 10: 4th Quarter Chloroform 2011 Resample C11120292-003 Client Sample 10: TW4-08 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride 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 107 %REC 110 %REC 103 %REC 96.0 %REC Qualifier Rl 1.0 1.0 1.0 1.0 80-120 70-130 80-120 80-120 Report Date: 12/21/11 Collection Date: 12/07/11 12:48 DateReceived: 12/09/11 Matrix: Aqueous MCL! QCl Method Analysis Date / By SW8260B 12/09/11 17:381 jlr SW8260B 12/09/11 17:381 jlr SW8260B 12/09/11 17:38 1 jlr SW8260B 12/09/11 17:38 1 jlr SW8260B 12/09/11 17:381 jlr SW8260B 12/09/11 17:381 jlr SW8260B 12/09/11 17:381 jlr SW8260B 12/09/11 17:381 jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 5 of 23 ,E"I\ERGY LABQRATORII;;:S www.energylab.com Analytical Exestlsnes Sines 1952 Helena, MT 877-472-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515 Giliette, WY 866-686-7175 ., Rapid City, SO 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 4th Quarter Chloroform 2011 Lab 10: C11110773-002 Client Sample 10: TW4-8R Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-dS Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result NO NO NO NO NO NO 135 101 104 90.0 Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC S -Spike recovery outside of advisory limits. Report Date: 12/21/11 Collection Date: 11/15/11 06:34 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date 1 By A4500-CI B 12/02/11 09:521 wc 0.1 E353.2 11/21/1112:4S/dc 1.0 SWS260B 11/23/11 20 :23 1 mdr 1.0 SWS260B 11/23/11 20 :23 1 mdr 1.0 SWS260B 11/23/11 20 :23 1 mdr 1.0 SWS260B 11/23/11 20:231 mdr S SO-120 SWS260B 11/23/11 20:231 mdr 70-130 SWS260B 11/23/11 20:231 mdr SO-120 SWS260B 11/23/11 20:231 mdr SO-120 SWS260B 11/23/11 20 :23 1 mdr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 5 of 43 'EI\ERGY' L ABORATORIES www.energylab.com Analytical ExcsllsncB Sines 1952 1. .. Helena, MT 871-412-0111 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 GJllette, Wy 866~686-7175 • Rapid City, SD 888-612-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: LablD: 4th Quarter Chloroform 2011 Resample C11120292-002 Client Sample ID: TW4-0BR Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-dS Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units NO ug/l NO ug/l NO ug/l NO ug/l 110 %REC 124 %REC 10S %REC 9S.0 %REC Qualifier Rl 1.0 1.0 1.0 1.0 SO-120 70-130 SO-120 SO-120 Report Date: 12/21/11 Collection Date: 12/06/11 07:21 DateReceived: 12/09/11 Matrix: Aqueous MCL! QCl Method Analysis Date 1 By SWS260B 12/09/11 17:03 1 jlr SWS260B 12/09/11 17:031 jlr SWS260B 12/09/11 17:03 1 jlr SWS260B 12/09/11 17:03/ jlr SWS260B 12/09/11 17:03 / jlr SWS260B 12/09/11 17:03 1 jlr SWS260B 12/09/11 17:031 jlr SWS260B 12/09/11 17:031 jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 4 of 23 I ~I'.ERGY LABORATORIES ------DtJ' www.energylab.com Analytical ExCStlsnCB Sines 1952 Helena, MT 877 -472-0711 • Billings, MT 800-735-4489 " Casper, !NY 888-235-0515 Gillette, WY 866-686-7175 " Rapid City, SO 888-672-1225 e College Station, "IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-011 Client Sample 10: TW4-9 Analyses Result MAJOR IONS Chloride 38 Nitrogen, Nitrate+Nitrite as N 2.3 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. D -Rl increased due to sample matrix. Units mg/l mg/l Report Date: 12/21/11 Collection Date: 11/16/11 07:13 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date / By A4500-CI B 12/02/11 11 :03 1 wc D 0.2 E353.2 11/21/11 13:151 dc MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 14 of 43 EI'tERGY LABORATORIES www.energylab.com Analytical ExcsllsnCB Sines 1952 Helena, MT 877 -472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 ~illette, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab 10: 4th Quarter Chloroform 2011 Resample C 11120292-004 Client Sample 10: TW4-09 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1 ,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-dS Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units NO ug/l NO ug/l NO ug/l NO ug/l 112 %REC 126 %REC 10S %REC 102 %REC Qualifier Rl 1.0 1.0 1.0 1.0 SO-120 70-130 SO-120 SO-120 Report Date: 12/21/11 Collection Date: 12/07/11 12:55 DateReceived: 12/09/11 Matrix: Aqueous MCL! QCl Method Analysis Date / By SWS260B 12/09/11 1S:13 1 jlr SWS260B 12/09/11 1S:13 1 jlr SWS260B 12/09/11 1S:13 1 jlr SWS260B 12/09/111S:13/jlr SWS260B 12/09/11 1S:13 1 jlr SWS260B 12/09/11 1S:13 1 jlr SWS260B 12/09/11 1S:13 1 jlr SWS260B 12/09/11 1S:13 1 jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 6 of 23 www.energylab.com Analytical ExcslllHlcB Sincs 1952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, W'f 888-235-851 5 C:ilJette, WY 866-686-7175 • 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 4th Quarter Chloroform 2011 C11110773-018 Client Sample 10: TW4-10 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-dB Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 45 1.1 NO 110 ND NO 139 105 103 BB.O o -Rl increased due to sample matrix. Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 11/16/11 08:42 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date 1 By A4500-CI B 12/02/1114:15/wc 0.1 E353.2 11/21/11 13:3B 1 dc 1.0 SWB260B 11/23/11 17:251 mdr D 10 SWB260B 11/23/11 1B:01 1 mdr 1.0 SWB260B 11/23/11 17:251 mdr 1.0 SWB260B 11/23/11 17:251 mdr S BO-120 SWB260B 11/23/11 17:251 mdr 70-130 SWB260B 11/23/11 17:25 1 mdr BO-120 SWB260B 11/23/11 17:25 1 mdr BO-120 SWB260B 11/23/11 17:25 1 mdr MCl -Maximum contaminant level. ND -Not detected at the reporting limit. S -Spike recovery outside of advisory limits. Page 21 of 43 EI'.ERGY L.ASORAT ORIES www.energylab.com Analytical Excsllencs Sines '952 Helena, MY 877-412-0711 II Billings, MT 800-735-4489 II Casper, WY 888-235-0515 Gillette, WY 866-686-7175 • Rapid City, SO 888-672-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: LablD: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-022 Client Sample ID: TW4-11 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: Rl -Analyte reporting limit. QCL -Quality control limit. Result 46 7.1 ND 1500 ND ND 106 125 108 114 D -RL increased due to sample matrix. Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 11/16/11 09:42 DateReceived: 11/18/11 Matrix: Aqueous MCll Qualifier Rl QCl Method Analysis Date / By 1 A4500-CI B 12/05/11 14:201 wc D 0.5 E353.2 11/21/11 14:001 dc 1.0 SW8260B 11/29/11 04:38 1 jlr D 100 SW8260B 11/29/11 21 :35 1 mdr 1.0 SW8260B 11/29/11 04:381 jlr 1.0 SW8260B 11/29/11 04 :38 1 jlr 80-120 SW8260B 11/29/11 04:381 jlr 70-130 SW8260B 11/29/11 04:38 1 jlr 80-120 SW8260B 11/29/11 04:38 1 jlr 80-120 SW8260B 11/29/11 04:38 / jlr MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 25 of43 www.energylab.com Analytical Excsllsnce Sines 7652 Helena, MT 877-412-0111 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 9i11~tte, WY 866-686-1115 • Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab ID: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-004 Client Sample ID: TW4-12 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 30 8 NO NO NO NO 140 106 105 89.0 o -Rl increased due to sample matrix. Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 11/15/11 09:20 DateReceived: 11/18/11 Matrix: Aqueous MCll Qualifier Rl QCl Method Analysis Date 1 By A4500-CI B 12/02/11 09:55 1 wc 0 E353.2 11/21/11 12:531 dc 1.0 SW8260B 11/23/11 21 :34 1 mdr 1.0 SW8260B 11/23/11 21 :34 1 mdr 1.0 SW8260B 11/23/11 21 :34 1 mdr 1.0 SW8260B 11/23/11 21 :34 1 mdr S 80-120 SW8260B 11/23/11 21 :34 1 mdr 70-130 SW8260B 11/23/11 21 :341 mdr 80-120 SW8260B 11/23/11 21 :34 1 mdr 80-120 SW8260B 11/23/11 21 :34 1 mdr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. S -Spike recovery outside of advisory limits. Page 7 of43 www.energylab.com Analytical Excsllsnc8 Sines '952 f . Helena, MT 871-472-0711 -Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY e66-686-7175 • Rapid City, SO 888-672-1225 • College Station, 1)( 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-005 Client Sample 10: TW4-13 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 54 5.9 ND ND ND ND 145 107 107 89.0 D -Rl increased due to sample matrix. Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 11/15/11 09:12 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date / By A4500-CI B 12/02/11 10:001 wc D 0.5 E353.2 11/21/11 12:55/ dc 1.0 SW8260B 11/23/11 22:091 mdr 1.0 SW8260B 11/23/11 22:091 mdr 1.0 SW8260B 11/23/11 22:091 mdr 1.0 SW8260B 11/23/11 22:091 mdr S 80-120 SW8260B 11/23/11 22:091 mdr 70-130 SW8260B 11/23/11 22:091 mdr 80-120 SW8260B 11/23/11 22:091 mdr 80-120 SW8260B 11/23/11 22:091 mdr MCl -Maximum contaminant level. ND -Not detected at the reporting limit. S -Spike recovery outside of advisory limits. Page 8 of 43 www.energylab.com Analytical ExcsllsncB Sines 7952 Helella, MT 877-472-0111 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 ~illette, WY 866-686-7175 • Rapid City, SD 888-672-1225 0 College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-006 Client Sample 10: TW4-14 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality controllimit. Result 15 1.7 NO NO NO NO 140 109 106 88.0 Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC S -Spike recovery outside of advisory limits. Report Date: 12/21/11 Collection Date: 11/15/11 09:00 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date 1 By A4500-CI B 12/02/11 10:01 1 wc 0.1 E353.2 11/21/1112:58/dc 1.0 SW8260B 11/23/11 22:451 mdr 1.0 SW8260B 11/23/11 22:451 mdr 1.0 SW8260B 11/23/11 22:451 mdr 1.0 SW8260B 11/23/11 22:451 mdr S 80-120 SW8260B 11/23/11 22:451 mdr 70-130 SW8260B 11/23/11 22:451 mdr 80-120 SW8260B 11/23/11 22 :45 1 mdr 80-120 SW8260B 11/23/11 22:451 mdr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 9 of 43 ,EN:RGY LABORAT ORIES www.energylab.com Alialytical fxcstlsnC8 Sines 1952 r · J ..... Helena, MT 871-472-0711 • Billings, MT 800-735-4489 II Casper, WY 888-235-0515 Gillette, WY 866-&86-7175 e Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: LablD: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-021 Client Sample ID: MW-26 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 69 2.0 Units mg/l mg/l Qualifier RL 0.1 Report Date: 12/21/11 Collection Date: 11/16/11 09 :28 DateReceived: 11/18/11 Matrix: Aqueous MCL! QCL Method Analysis Date / By A4500-CI B 12/05/1114:14 /wc E353.2 11 /21/11 13:531 dc MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 24 of 43 EN:RGY LABORATORIES www.energylab.com JA. Analytical ExcsllBflC8 Sines 1952 , Helena, MT 877 -472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 ~~illette! WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab 10: 4th Quarter Chloroform 2011 Resample C11120292-013 Client Sample 10: MW-26 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1 ,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result ND 1800 ND 2.9 109 113 110 99.0 D -Rl increased due to sample matrix. Units ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 12/05/11 13:30 DateReceived : 12/09/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date / By 1.0 SW8260B 12/10/1 1 02:54/ jlr D 100 SW8260B 12/09/11 15:191 jlr 1.0 SW8260B 12/10/11 02:541 jlr 1.0 SW8260B 12/10/11 02 :541 jlr 80-120 SW8260B 12/10/11 02:541 jlr 70-130 SW8260B 12/10/11 02:541 jlr 80-120 SW8260B 12/10/1 1 02:541 jlr 80-120 SW8260B 12/10/11 02:541 jlr MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 15 of 23 E~RGY LABORATORIES www.energylab.com 1 .. -·.· Analytical Excs/lencB Sines '952 _ Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, Wy 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, lX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: LablD: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-014 Client Sample ID: TW4-16 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 38 0.4 Units mg/l mg/l Qualifier Rl 0.1 Report Date: 12/21/11 Collection Date: 11/16/11 07:43 DateReceived: 11/18/11 Matrix: Aqueous MCL! QCl Method Analysis Date 1 By A4500-CI B 12/02/11 11 :23 1 wc E353.2 11/21/11 13:281 dc MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Pag~ 17 of 43 EI'.ERGY LABORAT ORIES www;energylab.com Ali8lytica/ ExcstlsnCB SincB 7952 Heiena, 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 Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab 10: 4th Quarter Chloroform 2011 Resample C11120292-007 Client Sample 10: TW4-16 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-dS Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units NO ug/L NO ug/L NO ug/L 1.4 ug/l 10S %REC 115 %REC 106 %REC 9S.0 %REC Qualifier Rl 1.0 1.0 1.0 1.0 SO-120 70-130 SO-120 SO-120 Report Date: 12/21/11 Collection Date: 12/07/11 13:21 DateReceived: 12/09/11 Matrix: Aqueous MCL! QCl Method Analysis Date 1 By SWS260B 12109/11 22:501 jlr SWS260B 12109/11 22:501 jlr SWS260B 12109/11 22:501 jlr SWS260B 12109/11 22:501 jlr SWS260B 12109/11 22:501 jlr SWS260B 12109/11 22:501 jlr SWS260B 12109/11 22:501 jlr SWS260B 12109/11 22:501 jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 9 of 23 -----rIl" EI'ERGY L.ABORATORIES www.energylab.com ( Analytical ExcsflsnCB SiJICS '952 J...i~ Helena, MT 877-472-0711 • Billings, MT 800-735-4489 11 Casper, WY 888-235-0515 ~Hlette, Wy 866-686-7175 • Rapid City, SO 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 4th Quarter Chloroform 2011 C11110773-009 Client Sample 10: MW-32 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 32 ND Units mg/l mg/l Qualifier RL 1 0.1 Report Date: 12/21/11 Collection Date: 11/16/11 14:50 DateReceived: 11/18/11 Matrix: Aqueous MCL! QCL Method Analysis Date / By A4500-CIB 12/02/1110:11/wc E353.2 11/21/1113:05/dc .~, MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 12 of 43 EN:RGY L.ABORAT ORIES www.energylab.com Analytical ExcsllsncB Sines 1952 Helena, MT 877-472-0711 " Billings, MT 800-735-4489 • Casper, WY 888-235-0515 .~illette, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, 1)( 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: LablD: 4th Quarter Chloroform 2011 Resample C11120292-001 Client Sample ID: MW-32 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: T oluene-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 109 %REC 114 %REC 110 %REC 100 %REC Qualifier Rl 1.0 1.0 1.0 1.0 80-120 70-130 80-120 80-120 Report Date: 12/21/11 Collection Date: 12/06/11 14:05 DateReceived: 12/09/11 Matrix: Aqueous MCL! QCl Method Analysis Date 1 By SW8260B 12/09/11 16:281 jlr SW8260B 12/09/11 16:281 jlr SW8260B 12/09/11 16:281 jlr SW8260B 12/09/11 16:281 jlr SW8260B 12/09/11 16 :28 1 jlr SW8260B 12/09/11 16:281 jlr SW8260B 12/09/11 16:281 jlr SW8260B 12/09/11 16:281 jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 3 of 23 www.energylab.com Analytical ExcsllsncB Sines 1952 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, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-017 Client Sample 10: TW4-18 Analyses Result MAJOR IONS Chloride 23 Nitrogen, Nitrate+Nitrite as N 6.3 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. D -Rl increased due to sample matrix. Units mg/l mg/l Report Date: 12/21/11 Collection Date: 11/16/11 08: 19 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date / By 1 A4500-CI B 12/02/1114:14/wc D 0.5 E353.2 11/21/1113:35/dc MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 20 of 43 EN:RGY LABORATORIES www.energylab.com Analytical Excs11811CB Sines 1952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 866-686-7175 • Rapid City, SO 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: LablD: 4th Quarter Chloroform 2011 Resample C11120292-010 Client Sample ID: TW4-18 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: T oluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units NO ug/l 28 ug/l NO ug/l NO ug/l 103 %REC 109 %REC 107 %REC 102 %REC Qualifier Rl 1.0 1.0 1.0 1.0 80-120 70-130 80-120 80-120 Report Date: 12/21/11 Collection Date: 12/07/11 13:50 DateReceived: 12/09/11 Matrix: Aqueous MCL! QCl Method Analysis Date / By SW8260B 12/09/11 13:35 1 jlr SW8260B 12/09/11 13:35 1 jlr SW8260B 12/09/1113:35/jlr SW8260B 12/09/11 13:351 jlr SW8260B 12/09/11 13:351 jlr SW8260B 12/09/11 13:351 jlr SW8260B 12/09/11 13:35 1 jlr SW8260B 12/09/1113:35/jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 12 of 23 EI'l:RGY~ LABORATORIES ---_ .. _===== www.energylab.com ~Helena.MT877-472-0711 G BillingS.MT 800-735-4489 • Casper, WY 888-235-0515 ___________ ~_.~_~_lli_"_M_~_~_~_~_B_~_~_=l=~;=~_~.~~·_.~~_m_~_e_,W_Y_8_6_~_6_~_-_71_7_5_._R_ap_~_c_H_~_~_"Hn~m .~~~~~U"~"W~8 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-023 Client Sample 10: TW4-19 Analyses Result MAJOR IONS Chloride 148 Nitrogen, Nitrate+Nitrite as N 5.0 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. D -Rl increased due to sample matrix. Units mg/l mg/l Report Date: 12/21/11 Collection Date: 11/17/11 07:55 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date / By A4500-CI B 12/05/11 14:23 1 wc D 0.5 E353.2 11/21/11 14:03/ dc MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 26 of 43 EI\ERGY LABORATORIES www.energylab.com Analytical Exes/lance Sines 1152 [ Helena, MT 871-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 ~illette, WY 866-686-7115 • Rapid City, SD 888-672-1225 • College Station, lX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab 10: 4th Quarter Chloroform 2011 Resample C11120292-014 Client Sample 10: TW4-19 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 5.4 2200 NO NO 108 116 108 97.0 o -Rl increased due to sample matrix. Units ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 12/05/11 14:25 DateReceived: 12/09/11 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date 1 By 1.0 SW8260B 12/10/11 03:281 jlr 0 100 SW8260B 12/09/11 15:541 jlr 1.0 SW8260B 12/10/11 03:281 jlr 1.0 SW8260B 12/10/11 03:28 1 jlr 80-120 SW8260B 12/10/11 03:28 1 jlr 70-130 SW8260B 12/10/11 03:28 1 jlr 80-120 SW8260B 12/10/11 03:281 jlr 80-120 SW8260B 12/10/11 03:28 1 jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 16 of 23 www.energylab.com Analytical Exesl/Blles Sines t g52 r ~ ___ '_M *--_._-_. " , Helena, MT 877-472-0711 tI Billings, MT 808-735·4489 • Casper, WY 888-235-0515 ,,' "Gillette, WY 866-686-7175 \I Rapid City, SD 888-612-1225 • College Station, IX 888-690-2218 "EI\ERGY LABORATORIES LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-026 Client Sample 10: TW4-20 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 186 4.2 7.2 7900 ND 2.5 106 115 104 113 D -Rl increased due to sample matrix. Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 11/16/11 13: 10 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date / By A4500-CI B 12/05/11 14:481 wc D 0.2 E353.2 11/21/11 14:101 dc 1.0 SW8260B 11/28/11 19:231 jlr D 1000 SW8260B 11/28/11 18:481 jlr 1.0 SW8260B 11/28/1119 :23 1 jlr 1.0 SW8260B 11/28/11 19:23 1 jlr 80-120 SW8260B 11/28/11 19:23 1 jlr 70-130 SW8260B 11/28/11 19:231 jlr 80-120 SW8260B 11/28/11 19:231 jlr 80-120 SW8260B 11/28/11 19:231 jlr MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 29 of 43 ------iiiiiiiii!ii!ii EN:RGY L.ABORATORIES www.energylab.com Analytical ExcsllBflCB Sincs 1952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 11 Casper, WY 888-235-0515 Gillette, WY 866-&86-7175 II Rapid City, SD 888-&72-1225 If College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: LablD: Denison Mines USA Corp 4th Quarter Chloroform 2011 C 11110773-020 Client Sample ID: TW4-21 Analyses Result MAJOR IONS Chloride 276 Nitrogen, Nitrate+Nitrite as N 13 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. o -Rl increased due to sample matrix. Units mg/l mg/l Report Date: 12/21/11 Collection Date: 11/16/11 09:01 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date 1 By A4500-CI B 12/02/11 14:221 wc 0 E353.2 11/21/1113:43/dc MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 23 of 43 EN:RGY L.ABORATORIES WWN.energylab.com AfiBlytica/ ExcstlsncB Sines "52 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 GiII~tte, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab 10: 4th Quarter Chloroform 2011 Resample C11120292-012 Client Sample 10: TW4-21 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: T 0luene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 6.7 390 ND ND 109 112 106 97.0 D -Rl increased due to sample matrix. Units ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 12/07/11 14:09 DateReceived: 12/09/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date 1 By 1.0 SW8260B 12/10/11 02:191 jlr D 100 SW8260B 12/09/11 14:441 jlr 1.0 SW8260B 12/10/11 02:191 jlr 1.0 SW8260B 12/10/11 02:191 jlr 80-120 SW8260B 12/10/11 02:191 jlr 70-130 SW8260B 12/10/11 02:191 jlr 80-120 SW8260B 12/10/11 02:191 jlr 80-120 SW8260B 12/10/11 02:191 jlr MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 14 of 23 EI\ER(iY LABORATORIES www.energylab.com AIi8Iyti&a/ Excel/BIles Sines 1152 ------------------------------------I j Heiena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 .GiII~tie, Wy 866~686-7175 • 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 4th Quarter Chloroform 2011 C11110773-019 Client Sample 10: TW4-22 Analyses Result MAJOR IONS Chloride 174 Nitrogen, Nitrate+Nitrite as N 19 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. D -Rl increased due to sample matrix. Units mg/l mg/l Report Date: 12/21/11 Collection Date: 11/16/11 08:51 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date 1 By A4500-CI B 12/02/11 14:181 wc D E353.2 11/21/11 13:401 dc MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 22 of 43 EI\ERGY LABORATORIES www.energylab.com Analytical fxcsllsncB Sincs 1952 Helena, MT 877-412-0711 • Billings, MT 800-135-4489 • Casper, WY 888-235-0515 '~mEltta, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 4th Quarter Chloroform 2011 Resample Lab 10: C11120292-011 Client Sample 10: TW4-22 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result ND 400 ND ND 111 114 108 97.0 D -Rl increased due to sample matrix. Units ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 12/07/11 13:59 DateReceived: 12/09/11 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date 1 By 1.0 SW8260B 12/10/11 01 :44 1 jlr D 100 SW8260B 12/09/11 14:101 jlr 1.0 SW8260B 12/10/11 01 :44 1 jlr 1.0 SW8260B 12/10/11 01 :44 1 jlr 80-120 SW8260B 12/10/11 01 :44 1 jlr 70-130 SW8260B 12/10/11 01 :44 1 jlr 80-120 SW8260B 12/10/11 01 :44 1 jlr 80-120 SW8260B 12/10/11 01 :44 1 jlr MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 13 of 23 EI'.ERGY LABORATORIES www.energylab.com Analytical Exes/Isnce Sines 1952 r---Helena, MT 877-472-0711 • Billings, MT 800-735-4489 · Casper, WY 888-235-0515 J:::: >: ,.i."~iII~tte, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab ID: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-007 Client Sample ID: TW4-23 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 43 NO NO NO NO NO 140 104 105 90.0 Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC S -Spike recovery outside of advisory limits. Report Date: 12/21/11 Collection Date: 11/15/11 09:55 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date 1 By A4500-CI B 12/02/1110:04/wc 0.1 E353.2 11/21/1113:00/dc 1.0 SW8260B 11/23/11 23:21 1 mdr 1.0 SW8260B 11/23/11 23:21 1 mdr 1.0 SW8260B 11/23/1123:21/mdr 1.0 SW8260B 11/23/11 23 :21 1 mdr S 80-120 SW8260B 11/23/11 23 :21 1 mdr 70-130 SW8260B 11/23/1123:21/mdr 80-120 SW8260B 11/23/11 23:21 1 mdr 80-120 SW8260B 11/23/11 23:21 1 mdr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 10 of 43 www.energylab.com Analytical ExcsllsncB Sines '952 f Helena, MT 877-472-0711 • Billings, MT 800-735~4489 • Casper, WY 888-235-0515 ~iilette, WY 866-686-7175 • Rapid City, SD 888-672-1225 @ College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: LablD: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-012 Client Sample ID: TW 4-24 Analyses Result MAJOR IONS Chloride 608 Nitrogen, Nitrate+Nitrite as N 35 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. D -Rl increased due to sample matrix. Units mg/l mg/l Report Date: 12/21/11 Collection Date: 11/16/11 07:23 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date / By A4500-CI B 12/02/11 11: 12 1 wc D E353.2 11/21/11 13 :23 1 dc MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 15 of 43 EI'.ERGY LA80RATORIES ' www.ene.rgylab.com Analyti~1 Exes/Isnes Sines '952 Helena, MT 877 .. 472-0111 • Billings, MT 800-735-4489 -Casper, WY 888-235-0515 :~iliette, WY 866-686-7175 • Rapid City, so 888-672-1225 • College Station, TX 888-690-2218 LABORATORY AN ALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab lD: 4th Quarter Chloroform 2011 Resample C11120292-005 Client Sample ID: TW4-24 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1 ,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: T oluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units NO ug/l 1.2 ug/l NO ug/l NO ug/l 109 %REC 112 %REC 103 %REC 101 %REC Qualifier Rl 1.0 1.0 1.0 1.0 80-120 70-130 80-120 80-120 Report Date: 12/21/11 Collection Date: 12/07/11 13:03 DateReceived: 12/09/11 Matrix: Aqueous MCL! QCl Method Analysis Date / By SW8260B 12/09/11 21 :41 1 jlr SW8260B 12/09/11 21 :41 1 jlr SW8260B 12/09/11 21 :41 1 jlr SW8260B 12/09/11 21 :41 1 jlr SW8260B 12/09/11 21 :41 1 jlr SW8260B 12/09/11 21 :41 1 jlr SW8260B 12/09/1 1 21 :41 1 jlr SW8260B 12/09/11 21 :41 1 jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 7 of 23 www.energylab.com ,Analyti&al fxcstlsnce Sincs 1152 Helena, MT 877-472-011 1 '" Billings, MT 806-735-4489 • Casper, WY 888-235-0515 9iJ1ette, WY 866-686-7175 IJt 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 4th Quarter Chloroform 2011 C11110773-008 Client Sample 10 : TW4-25 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 294 16 ND ND ND ND 142 108 110 90.0 D -Rl increased due to sample matrix. Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 11/15/11 10:20 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier RL QCL Method Analysis Date 1 By A4500-CI B 12/02/11 10:091 wc D E353.2 11/21/1113:03/dc 1.0 SW8260B 11/23/11 23 :561 mdr 1.0 SW8260B 11/23/11 23 :561 mdr 1.0 SW8260B 11/23/11 23:561 mdr 1.0 SW8260B 11/23/11 23 :56 1 mdr S 80-120 SW8260B 11/23/11 23:561 mdr 70-130 SW8260B 11/23/11 23:561 mdr 80-120 SW8260B 11/23/11 23:561 mdr 80-120 SW8260B 11/23/11 23:561 mdr MCl -Maximum contaminant level. ND -Not detected at the reporting limit. S -Spike recovery outside of advisory limits. Page 11 of 43 ENSRGY LABORATORIES www.energylab.com Analytical ExcsllsncB Sincs '952 Helena, MT 877 -472-0711 • Billings, MT 808-735-4489 11 Casper, WY 888-235-0515 ~illette, WY 86S-686-1175 0 Rapid City, SD 888-672-1225 • College Station, lX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab ID: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-013 Client Sample ID: TW 4-26 Analyses Result MAJOR IONS Chloride 26 Nitrogen, Nitrate+Nitrite as N 10 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. D -Rl increased due to sample matrix. Units mg/l mg/l Report Date: 12/21/11 Collection Date: 11/16/11 07:33 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date 1 By A4500-CI B 12/02/11 11 :22 1 wc D E353.2 11/21/11 13:251 dc MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 16 of 43 EN:RGY LABORATORIES www.energylab.com AlUllytical Excsllsnc8 Sines .lg52 Helena, MT 871-472-0111 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 ~ilIette, WY 866-686-7115 • Rapid City, SD 888-612-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: LablD: 4th Quarter Chloroform 2011 Resample C 11120292-006 Client Sample ID: TW4-26 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride 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 5.2 ug/l NO ug/l NO ug/l 108 %REC 114 %REC 107 %REC 99.0 %REC Qualifier Rl 1.0 1.0 1.0 1.0 80-120 70-130 80-120 80-120 Report Date: 12/21/11 Collection Date: 12/07/1113:13 DateReceived: 12/09/11 Matrix: Aqueous MCL! QCl Method Analysis Date 1 By SW8260B 12/09/11 22:161 jlr SW8260B 12/09/11 22: 161 jlr SW8260B 12/09/11 22:161 jlr SW8260B 12/09/11 22:161 jlr SW8260B 12/09/1122:16/jlr SW8260B 12/09/11 22:161 jlr SW8260B 12/09/11 22:161 jlr SW8260B 12/09/11 22:161 jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 8 of 23 EI'ERGY LABORATORIES www.energylab.com Analytical ExcsllBnCB Sines 1952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 866-686-7175 • Rapid City, SO 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 4th Quarter Chloroform 2011 C11110773-027 Client Sample 10: TW4-60 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result NO NO Units mg/l mg/l Qualifier RL 0.1 Report Date: 12/21/11 Collection Date: 11/17/11 08:20 DateReceived: 11/18/11 Matrix: Aqueous MCL! QCL Method Analysis Date 1 By A4500-CI B 12/05/11 15:091 wc E353.2 11/21/11 14:131 dc MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 30 of 43 EN:RGY LABORATORIES www.energylab.com Analytical ExcsllsncB SiIlCB '952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 'Gillette, WY 866-&86-7175 • Rapid City, SD 888-&72-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab 10: 4th Quarter Chloroform 2011 Resample C11120292-015 Client Sample 10: TW4-60 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride 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 107 %REC 114 %REC 100 %REC 102 %REC Qualifier RL 1.0 1.0 1.0 1.0 80-120 70-130 80-120 80-120 Report Date: 12/21/11 Collection Date: 12/08/11 08:10 DateReceived: 12/09/11 Matrix: Aqueous MCL! QCL Method Analysis Date / By SW8260B 12/10/11 00 :351 jlr SW8260B 12/10/11 00:351 jlr SW8260B 12/10/11 00:351 jlr SW8260B 12/10/11 00:351 jlr SW8260B 12/10/11 00:351 jlr SW8260B 12/10/11 00:351 jlr SW8260B 12/10/11 00:351 jlr SW8260B 12/10/11 00:351 jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 17 of 23 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: LablD: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-028 Client Sample ID: TW4-65 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 23 4.4 NO NO NO NO 104 113 101 112 o -Rl increased due to sample matrix. Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC Report Date: 12/21/11 Collection Date: 11/15/11 08:21 DateReceived: 11/18/11 Matrix: Aqueous MCL! Qualifier Rl QCl Method Analysis Date 1 By A4500-CI B 12/05/1115:12/wc 0 0.5 E353.2 11/21/11 14:151 dc 1.0 SW8260B 11/28/11 17:041 jlr 1.0 SW8260B 11/28/11 17:041 jlr 1.0 SW8260B 11/28/11 17:041 jlr 1.0 SW8260B 11/28/11 17:041 jlr 80-120 SW8260B 11/28/11 17:041 jlr 70-130 SW8260B 11/28/1117:04/jlr 80-120 SW8260B 11/28/11 17:041 jlr 80-120 SW8260B 11/28/11 17:041 jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 31 of 43 EN.ERGY L.ABORATORIES www.energylab.com Analytical Excel/snca Sines 1952 C ----.------- .'". . Helena, MT 877-472-0711 " Billings, MT 800-735-4489 • Casper, WY 888-235-0515 . '. _,Gillette, WY 866-686-7175 fl Rapid City, SO 888-672-1225 " College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: LablD: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-029 Client Sample ID: TW4-70 Analyses MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result 33 0.8 ND 50 ND ND 107 122 105 113 Units mg/l mg/l ug/l ug/l ug/l ug/l %REC %REC %REC %REC Qualifier Rl 0.1 1.0 1.0 1.0 1.0 80-120 70-130 80-120 80-120 Report Date: 12/21/11 Collection Date: 11/16/11 08:02 DateReceived: 11/18/11 Matrix: Aqueous MCL! QCl Method Analysis Date 1 By A4500-CI B 12/05/11 15:141 wc E353.2 11/21/11 14:181 dc SW8260B 11/28/1117:39/jlr SW8260B 11/28/11 17:39 1 jlr SW8260B 11/28/11 17:39 1 jlr SW8260B 11/28/11 17:39 1 jlr SW8260B 11/28/11 17:39 1 jlr SW8260B 11/28/1117:39/jlr SW8260B 11/28/1117:39/jlr SW8260B 11/28/11 17:39 1 jlr MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 32 of 43 ,EI'ER(iY LABORATORIES www.energylab.com Analytical Excsllsnce Sines 1152 Helena, MT 877 -472-0111 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 9il1ette, WY 866-&86-7175 • Rapid City, SO 888-&72-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-030 Client Sample 10: Trip Blank 6092 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride 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 102 105 104 108 Units ug/l ug/l ug/l ug/l %REC %REC %REC %REC Qualifier Rl 1.0 1.0 1.0 1.0 80-120 70-130 80-120 80-120 Report Date: 12/21/11 Collection Date: 11/14/11 DateReceived: 11/18/11 Matrix: Aqueous MCL! QCl Method Analysis Date 1 By SW8260B 11/28/1114:11/jlr SW8260B 11/28/11 14:11 1 jlr SW8260B 11 /28/11 14:11 1 jlr SW8260B 11 /28/1114:11/jlr SW8260B 11/28/1114:11/jlr SW8260B 11/28/1114:11/jlr SW8260B 11/28/1114:11/jlr SW8260B 11/28/1114:11/jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 33 of 43 f:N:RGY LABORATORIES www.energylab.com Analytical ExcsllsnCB Sines 1952 Helena, MT 877-472-0111 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 ~illette, WY 866~6B6-7175 fI Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab ID: Denison Mines USA Corp 4th Quarter Chloroform 2011 C11110773-031 Client Sample ID: Temp Blank Analyses PHYSICAL PROPERTIES Temperature Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 2.3 Qualifier Rl Report Date: 12/21/11 Collection Date: 11/17/11 DateReceived: 11/18/11 Matrix: Aqueous MCL! QCl Method Analysis Date / By E170.1 11/18/11 09:00/ kbh MCl -Maximum contaminant level. ND -Not detected at the reporting limit. Page 34 of 43 c---------------------------------.--------------.--------EN:RGY· LABORATORIE;;S www.energylab.com Analytical ExcsllsnclJ Sines Jg52 Helena, MT 877-412-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 ~illette, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, lX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Project: Lab 10: Denison Mines USA Corp 4th Quarter Chloroform 2011 C 11120053-005 Client Sample 10: Trip Blank 6463 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride 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 101 108 103 109 Units ug/l ug/l ug/l ug/l %REC %REC %REC %REC Qualifier Rl 1.0 1.0 1.0 1.0 80-1 20 70-130 80-120 80-120 Report Date: 12/21/11 Collection Date: 11/29/11 DateReceived: 12/02/11 Matrix: Aqueous MCL! QCl Method Analysis Date 1 By SW8260B 12/06/11 23:131 mdr SW8260B 12/06/1123:13/mdr SW8260B 12/06/1123:13/mdr SW8260B 12/06/1123:13/mdr SW8260B 12/06/1123:13/mdr SW8260B 12/06/11 23:131 mdr SW8260B 12/06/11 23:131 mdr SW8260B 12/06/11 23:131 mdr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 7 of 13 EN:RGY LABORATORIES www;energylab.com Analytical ExcsllsncB Sines .1952 Helena, MT 877-472-0111 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 9mett~, Wy 86S-G86-7115 II Rapid City, SO 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 4th Quarter Chloroform 2011 C 11120053-006 Client Sample 10: Temp Blank Analyses PHYSICAL PROPERTIES Temperature Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 2.3 Qualifier Rl Report Date: 12/21/11 Collection Date: 11/29/11 DateReceived: 12/02/11 Matrix: Aqueous MCL! QCl Method Analysis Date / By E170.1 12/02111 10:15/ kbh MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 8 of 13 EN:RGY LABORATORIES www.energylab.com Analytical ExcsllsncB Sines 1952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 866~686-7115 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 LABORATORY ANALYTICAL REPORT Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: Lab 10 : 4th Quarter Chloroform 2011 Resample C11120292-016 Client Sample 10: Trip Blank 6381 Analyses VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chloride Surr: 1 ,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-dS Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units NO ug/l NO ug/l NO ug/l NO ug/l 113 %REC 116 %REC 106 %REC 9S.0 %REC Qualifier Rl 1.0 1.0 1.0 1.0 SO-120 70-130 SO-120 SO-120 Report Date: 12/21/11 Collection Date: 12/08/11 DateReceived: 12/09/11 Matrix: Aqueous MCL! QCl Method Analysis Date / By SWS260B 12/10/11 01 :09 1 jlr SWS260B 12/10/11 01 :09 1 jlr SWS260B 12/10/11 01 :09 1 jlr SWS260B 12/10/11 01 :09 1 jlr SWS260B 12/10/1 1 01 :09 1 jlr SWS260B 12/10/11 01 :09 1 jlr SWS260B 12/10/11 01 :09 1 jlr SWS260B 12/10/11 01 :09 1 jlr MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 18 of 23 E~RGY LABORATORIES www.energylab.com Analytical ExcsllsncB Sines 1152 Helena, MT 877-412-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 ~illette, WY 866·686·7115 • 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 4th Quarter Chloroform 2011 Resample C11120292-017 Client Sample 10: Temp Blank Analyses PHYSICAL PROPERTIES Temperature Report Definitions: Rl -Analyte reporting limit. QCl -Quality control limit. Result Units 2.4 Qualifier Rl Report Date: 12/21/11 Collection Date: 12/08/11 DateReceived: 12/09/11 Matrix: Aqueous MCL! QCl Method Analysis Date / By E170.1 12/21/11 12:071 sdw MCl -Maximum contaminant level. NO -Not detected at the reporting limit. Page 19 of 23 EN:RGY LABORATORIES www.energylab.com Analytical ExcsllBflCfJ Sines 1952 Helena, MT 877-472-0711 'D Billings, MT 800-735-4489 -Gasper, WY 888-235-0515 Gillette, WY 8GS-GB6-71l5 • Rapid City, SD 888-672-1225 • College Station, lX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 4th Quarter Chloroform 2011 Analyte Count Result Units Method: A4S00-CI B Sample 10: MBLK9-111202 Chloride Sample 10: C11110773-001AMS Chloride Sample 10: C11110773-001AMSO Chloride Sample 10: C11110773-014AMS Chloride Sample 10: C11110773-014AMSO Chloride Sample 10: LCS3S-111202 Chloride Method: A4S00-CI B Sample 10: MBLK9-11120S Chloride Sample 10: C11110773-021AMS Chloride Sample 10: C1111 0773-021 AMS Chloride Sample 10: LCS3S-11120S Chloride Qualifiers: RL -Analyte reporting limit. Method Blank ND mg/L Sample Matrix Spike 35.2 mg/L Sample Matrix Spike Duplicate 34.5 mg/L Sample Matrix Spike 224 mg/L Sample Matrix Spike Duplicate 224 mg/L Laboratory Control Sample 3520 mg/L Method Blank ND mg/L Sample Matrix Spike 180 mg/L Sample Matrix Spike Duplicate 180 mg/L Laboratory Control Sample 3450 mg/L Report Date: 12/21/11 Work Order: C11110773 RL %REC Low Limit High Limit RPO RPOLimit Qual 1.0 1.0 97 1.0 95 1.0 105 1.0 105 1.0 99 1.0 1.0 94 1.0 94 1.0 97 Batch: 111202-CL-TTR-W Run: TITRATION_111202A 12/02/11 09:45 Run: TITRA TION_111202A 90 110 Run: TITRATION_111202A 90 110 Run: TITRATION 111202A - 90 110 Run: TITRATION_111202A 90 110 Run: TITRATION_111202A 90 110 2.0 0.0 12/02/11 11 :00 12/02/11 11 :00 10 12/02/11 14:27 12/02/11 14:28 10 12/02/11 14:31 Batch: 111205-CL-TTR-W Run: TITRATION_111205A 12/05/11 14:06 Run: TITRATION_111205A 12/05/11 15 :46 90 110 Run: TITRATION_111205A 12/05/11 15:46 90 110 0.0 10 Run: TITRATION_111205A 12/05/11 16 :36 90 110 ND -Not detected at the reporting limit. Page 35 of 43 ---rJlJ" EI\ERGY LABORATORIES www.energylab.com Analytical Exes/fence Sines 7952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 866-686-7115 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Report Date: 12/21/11 Project: 4th Quarter Chloroform 2011 Work Order: C11110773 Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual Method: E353.2 Batch: R153595 Sample 10: MBLK-1 Method Blank Run: TECHNICON_111121A 11/21/11 12:33 Nitrogen, Nitrate+Nitrite as N ND mg/L 0.10 Sample 10: LCS-2 Laboratory Control Sample Run: TECHNICON_111121A 11/21/11 12:35 Nitrogen, Nitrate+Nitrite as N 2.42 mg/L 0.10 97 90 110 Sample 10: LFB-3 Laboratory Fortified Blank Run: TECHNICON_111121A 11/21/1112:38 Nitrogen, Nitrate+Nitrite as N 2.01 mg/L 0.10 103 90 110 Sample 10: C11110773-011BMS Sample Matrix Spike Run: TECHNICON_111121A 11/21/1113:18 Nitrogen, Nitrate+Nitrite as N 6.47 mg/L 0.20 106 90 110 Sample 10: C11110773-011BMSO Sample Matrix Spike Duplicate Run: TECHNICON_111121A 11/21/1113:20 Nitrogen, Nitrate+Nitrite as N 6.54 mg/L 0.20 108 90 110 1.1 10 Sample 10: C11110773-021BMS Sample Matrix Spike Run: TECHNICON_111121A 11/21/1113:55 Nitrogen, Nitrate+Nitrite as N 3.99 mg/L 0.10 103 90 110 Sample 10: C11110773-021BMSO Sample Matrix Spike Duplicate Run: TECHNICON_111121 A 11/21/11 13:58 Nitrogen, Nitrate+Nitrite as N 4.01 mg/L 0.10 104 90 110 0.5 10 Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. Page 36 of 43 --------,------- www.eoergylab.com ii Helena.MT877-472-0711 .Billings.MT 800-735-4489 • Casper, WY 888-235-0515 ~~~~_~~~~~~~A~~~~·_~/~~~~n~~~~~~~~~,s~~~~I~.~~~. ~~G~U~I~~. e~,WY866-686-7175 . Rap~C~SD88B-672-1225 .Co"e~Statio~~888-690-2218 EI\ERGY L.ABORATORIES QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Report Date: 12/21/11 Project: 4th Quarter Chloroform 2011 Work Order: C11110773 Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual Method: SW8260B Batch: R153733 Sample 10: 23-Nov-11_LCS_8 S Laboratory Control Sample Run: 5975VOC1_111123A 11/23/11 15:3S Carbon tetrachloride 9.7 ug/L 1.0 97 70 130 Chloroform S.S ug/L 1.0 SS 70 130 Chloromethane 11 ug/L 1.0 113 70 130 Methylene chloride 12 ug/L 1.0 121 70 130 Surr: 1,2-Dichlorobenzene-d4 1.0 10S SO 120 Surr: Dibromofluoromethane 1.0 S6 70 130 Surr: p-Bromofluorobenzene 1.0 102 SO 130 Surr: Toluene-dS 1.0 96 SO 120 Sample 10: 23-Nov-11_MBLK_10 S Method Blank Run: 5975VOC1 111123A 11/23/11 16:49 Carbon tetrachloride ND ug/L 1.0 Chloroform ND ug/L 1.0 Chloromethane ND ug/L 1.0 Methylene chloride ND ug/L 1.0 Surr: 1,2-Dichlorobenzene-d4 1.0 135 SO 120 S Surr: Dibromofluoromethane 1.0 101 70 130 Surr: p-Bromofluorobenzene 1.0 109 SO 120 Surr: Toluene-dS 1.0 90 SO 120 Sample 10: C11110773-018CMS S Sample Matrix Spike Run: 5975VOC1 -111123A 11/23/11 1S:36 Carbon tetrachloride 240 ug/L 10 11S 70 130 Chloroform 340 ug/L 10 113 70 130 Chloromethane 2S0 ug/L 10 140 70 130 S Methylene chloride 290 ug/L 10 144 70 130 S Surr: 1,2-Dichlorobenzene-d4 1.0 110 SO 120 Surr: Dibromofluoromethane 1.0 101 70 130 Surr: p-Bromofluorobenzene 1.0 9S SO 120 Surr: Toluene-dS 1.0 100 SO 120 Sample 10: C11110773-018CMSO S Sample Matrix Spike Duplicate Run: 5975VOC1 111123A 11/23/1119:12 Carbon tetrachloride 270 ug/L 10 137 70 130 15 20 S Chloroform 370 ug/L 10 131 70 130 10 20 S Chloromethane 340 ug/L 10 16S 70 130 1S 20 S Methylene chloride 340 ug/L 10 171 70 130 17 20 S Surr: 1,2-Dichlorobenzene-d4 1.0 111 SO 120 0.0 10 Surr: Dibromofluoromethane 1.0 102 70 130 0.0 10 Surr: p-Bromofluorobenzene 1.0 101 SO 120 0.0 10 Surr: Toluene-dS 1.0 9S SO 120 0.0 10 Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. S -Spike recovery outside of advisory limits. Page 37 of 43 ----bU ' E~RGY LABORATORIES www.energylab.com Analytiul Exesl/sncB Sines 1952 Helena, MT 877 -472-011 T • Billings, MT 800-735-4489 -Casper, WY 888-235-0515 Gillette, Wy 866-686~7175 it Rapid City, SD 888-672-1225 • College station, IX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Report Date: 12/21/11 Project: 4th Quarter Chloroform 2011 Work Order: C11110773 Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual Method: SW8260B Batch: R153786 Sample 10: 28-Nov-11 _LCS_ 4 8 Laboratory Control Sample Run: GCMS2_111128A 11/28/11 12:18 Carbon tetrachloride 11 ug/L 1.0 111 70 130 Chloroform 11 ug/L 1.0 106 70 130 Chloromethane 8.2 ug/L 1.0 82 70 130 Methylene chloride 9.9 ug/L 1.0 99 70 130 Surr: 1,2-Dichlorobenzene-d4 1.0 102 80 120 Surr: Dibromofluoromethane 1.0 104 70 130 Surr: p-Bromofluorobenzene 1.0 98 80 130 Surr: T oluene-d8 1.0 108 80 120 Sample 10: 28-Nov-11_MBLK_6 8 Method Blank Run: GCMS2 111128A 11/28/11 13:27 - Carbon tetrachloride ND ug/L 1.0 Chloroform ND ug/L 1.0 Chloromethane ND ug/L 1.0 Methylene chloride ND ug/L 1.0 Surr: 1,2-Dichlorobenzene-d4 1.0 104 80 120 Surr: Dibromofluoromethane 1.0 104 70 130 Surr: p-Bromofluorobenzene 1.0 101 80 120 Surr: T oluene-d8 1.0 107 80 120 Sample 10: C111 10773-026CMS 8 Sample Matrix Spike Run: GCMS2 111128A 11/28/11 19:58 - Carbon tetrachloride 25000 ug/L 1000 126 70 130 Chloroform 36000 ug/L 1000 143 70 130 S Chloromethane 21000 ug/L 1000 106 70 130 Methylene chloride 25000 ug/L 1000 123 70 130 Surr: 1,2-Dichlorobenzene-d4 1.0 104 80 120 Surr: Dibromofluoromethane 1.0 118 70 130 Surr: p-Bromofluorobenzene 1.0 101 80 120 Surr: Toluene-d8 1.0 114 80 120 Sample 10: C11110773-026CMSO 8 Sample Matrix Spike Duplicate Run: GCMS2 -111128A 11/28/11 20:32 Carbon tetrachloride 24000 ug/L 1000 120 70 130 4.2 20 Chloroform 34000 ug/L 1000 131 70 130 6.6 20 S Chloromethane 20000 ug/L 1000 102 70 130 4.2 20 Methylene chloride 24000 ug/L 1000 120 70 130 2.6 20 Surr: 1,2-Dichlorobenzene-d4 1.0 104 80 120 0.0 10 Surr: Dibromofluoromethane 1.0 118 70 130 0.0 10 Surr: p-Bromofluorobenzene 1.0 100 80 120 0.0 10 Surr: T oluene-d8 1.0 114 80 120 0.0 10 Qualifiers: RL - Analyte reporting limit. ND -Not detected at the reporting limit. S -Spike recovery outside of advisory limits. Page 38 of 43 www.energylab.com Analytical ExesIJ8I1CII Sines 1952 E" ". . .•. , - Helena, MT 877~472-n711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 ~illetta, WY 86&-686-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 4th Quarter Chloroform 2011 Analyte Count Method: SW8260B Result Units Sample 10: 29-Nov-11_LCS_5 5 Laboratory Control Sample Chloroform 11 ug/L Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluene-d8 Sample 10: 29-Nov-11_MBLK_7 5 Method Blank Chloroform NO ug/L Surr: 1,2-0ichlorobenzene-d4 Surr: Oibromofluoromethane Surr: p-Bromofluorobenzene Surr: T oluene-d8 Qualifiers: RL -Analyte reporting limit. S -Spike recovery outside of advisory limits. RL 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Report Date: 12/21/11 Work Order: C11110773 %REC Low Limit High Limit RPO RPOLimit Qual 107 112 89 106 99 131 98 107 91 Run: 5975VOC1 _111 129A 70 130 80 120 70 130 80 130 80 120 Run: 5975VOC1 111129A - 80 120 70 130 80 120 80 120 Batch: R153835 11/29/11 14:09 11/29/11 15:20 S NO -Not detected at the reporting limit. Page 39 of 43 EI\ERGY LABORATORIES www.energylab.com A"alytic:il ExcetlBflce Since '952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 ~~n~tt~, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 Workorder Receipt Checklist Denison Mines USA Corp 1111111111111111111111111111111111111111111111111111111 C11110773 Login completed by: Kristy Gisse Reviewed by: BL2000\kschroeder Reviewed Date: 12/1/2011 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? (Exclude analyses that are considered field parameters such as pH, DO, Res CI, Sulfite, Ferrous Iron, etc.) ContainerlT emp Blank temperature: Water -VOA vials have zero headspace? Water -pH acceptable upon receipt? Contact and Corrective Action Comments: None Yes 0 Yes 0 Yes D Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 2.3"C On Ice Yes 0 Yes 0 Date Received: 11/18/2011 Received by: jes No D No D No D No D No D No D No D No D No D No D No D No D Carrier FedEx name: Not Present D Not Present D Not Present 0 No VOA vials submitted D Not Applicable D . Page 40 of 43 -0 Q) (C CD ~ ~ 0 "-~ w .-Chain of Custody and Analytical Request Record Page_l_of~ Company Name: Denison M;f\e:5> Report Mail Address: PO t;o')( gO~ Bi~J'\(r-~ ~\ 34S\1 I nvoice Address: S"""t!... Special Report/Formats: Dow D EDD/EDT{Electronic Data) D POTWIWWTP o State: Format:. ____ _ D LEVEL IV ----o Other: ----D NELAC 2 3 5 7 8 SAMPLE IDENTIFICATION (Name, Location, Interval, etc,) Signed I Sample Disposal: Collection Date Return to Client: Collection Time PLEASE PRINT (Provide as much information as pos$ible.) Project Name, PWS, Permit, Etc. I Sample Origin y.,.h Q\Xw+er L.'h \orot'ort'1 ~O \ \ State: \.kI EPA/State Compliance: Yes t)'l No D Contact Name: Phone/Fax: R~G\t\ Pc).\mU' L.\~ f,7g ~\ Invoice Contact & Phone: !)tWlG :s: ~ Y1~D@ ~~®QD(g@lJ~1]) o ~ ~O(l)~ ~m~OI'" ._> 0 Q) ~C/)~ m~ 8s:= ~ 0) ..... «~I.Q·6 o ... ml...¥:: ... 0>2 c·S .8~I~O Er-> (1J I ::::) 0).= Q) s: za.«I~O fij >1 CJ) MATRIX '5-W S-w s-vJ ;-~ !:,-y.j ~.,w !:JJ'rJ 5-W 5 ... ""'; r-~ \l # ~ 0 d ~ x ~ x ~ -:i f.. ~ I ~ s'w I" Sig¥~fe~ "J _ .AAIJDL. MJ~~ Signature: V Received by (print): Received by (print): 0 w I () « ~ ~ W UJ en Email: Sampler: (Please Print) ~t\1\ er ).\ 0 Illtd~*- Purchase Order: Quote/Bottle Order: I. ~I R C "'0 c ~ I U ro c '-::J ~ I 5 (t) "0 c ~ I H DatelTime: Datemme: Contact ELI prior to Shipped by: RUSH sample submittal ~! -,~ ~ for charges and Cooler 10(s); scheduling -See • I Instruction Page "),.. c., J ~r'1 Comments: Receipt Temp ~.3 On Ice: Custody Seal On Bottle On Cooler Intact Signature Match I~ I~ '~ I I~ ~ ~. fi ~ ~ I~ (6) IWr °C U')N ~: gN Y N I~ LJUlo11; Signature: Signature: Kecelved by LabOrato7 DaterTime: Lab Disposal: _ I ~... ~ tI ... li~ II '1 ~(;V Signature: In certain circumstances, samples submitted to Energy Laboratories, Inc. may be subcontracted to other ~ified 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. '}~" 1IIII1III'J;. ... ~. "'I a. .. -. --~ ----~ ----~ -.------~ -~ --- Company Name: Project Name, PWS, Permit, Etc. Sample Origin EPA/State Compliance:l I State: Yes 0 No 0 Report Mail Address: ,Contact Name: Phone/Fax: Email: Sampler: (Please Print) S rArYlf'. o-.S ? c;\.C\ e. 1 Invoice Address: Invoice Contact & f'f1e,;Ie: Purchase Order: Quote/Bottle Order: I I Special ReporUFormats: ~ ~£[1 W@O® OO~®illJ~rn@ .. Contact ELI prior to . shF'~~~Yc ~ Cl '-RUSH sample submIttal ~_,,_r;_:;,1\ __ --1 ~ 0 (J) ~ _ for charges and ci~er ID($); ';2 , I .~g!~~~ 0 ~ R scheduling -See 1Z#," « t:..1.~".,t I, 0 OW 0 EDD/EOT . ~Cf)~ m s: \.C\ W --Instruction Page ..,.. (Electromc Data) o~15 ~ Ol r-5 -g Ct. ReceiptTemp '0 POTWNVWTP 0 Format: ~«~I~I~ ~ « is U ommen s. -? 3 0c o State: LEVEL IV ~ CD ~ g ;§ \ ~ t-ffi 1--===' =====-~-I o Other: D NELAC ~~I~' ~ ~ ~ On Ice: (f> N ~ Q).-Cl,) :s: t-5 z 1i «I arc ... W "E Custody Seal § >1 ~ W ~ On Bottle g N CJ) d (f) ffi On Cooler N \-------------r-------r----+------j U5 H Intact N SAMPLE IDENTIFICATION Collection Collection MATRIX Signature G (Name, Location, Interval, etc.) Date Time Match N 1 IvJl..\-ct nl1b1H fI 01\3 S-'N 'f.. ~ 2 -r~4--:l.,,\ ll/lbltJ 01~ 5-W \ ~. 3 JW'1-% "/lb/u 0133 ~-W 1: I~ 4 1"'W~-I' IU/lb/ll o14~ ~~\J ~ I~ 5 I'W L.\ -5 \ \/1.(/ II 0753 5-\J 't. I~ 6 TW4-~ Ilt/"/ll OKO~ "5rW X ~ 7..,-w4-1g U b/u Oglq 5-W ~ I~ 8 --rW4-10 UII'/II otl1~ ErW \ I~ b9 TW4-:J.:lH ,~/U Og!;\ S-\J \ ~ . 10 T~4 _ 2J Ill/I'll) cqO\ ~-\J'I ~~ I~ C/lllb773 ~~Custody rr;~=bU:\i)SlD.d n/~;/li: ll"D _'flM:~atu~7J.J~ Receilledby(prinl): DatelTime: Signature: ~ ~ Record RelinqUished by {print): <5 DatefTirne: -Signature:· U Receille<! by (print): DatelTime: Signature: 'PMUST be I • K8C8lvea oy LaDOrar./' uatelI Ime: signature: Signed Sample Disposal: Return to Client: lab Disposal: 7M,., ~ /fr:-el ~ ~II 9! 00 y Oe suOcontP'3cted to other certified laooratones In oraer to comp 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. "'0 Chain of Custody and Analytical Request Record Page~of~ IIIClfrrr,y LA BORA TORIE5 PLEASE PRINT (Provide as much information as possible.) Company Name: Project Name, PWS, Permit, Etc. Sample Origin EPNState Compliance: State: Yes 0 No 0 Report Mail Address: So-me--c Contact Name: Phone/Fax: Email: Sampler: (Please Print) ~-'Po.L\e-i Invoice Address: Invoice ContaCNl Phone: Purchase Order: Quote/Bottle Order: I' Special Report/Formats: ~ '\'?@O@ OO~®GD~rnlID .. Contact ELI prior to Shipped by: :r: fC::-'P/( c <v RUSH sample submittal ~O en..c t=' for charges and ~m~51 Qi C ~ R scheduling -See ._> ° >-1U o OW D EDDJEDT(Electronic Data) B(f)CI)co3: JJ1 W Instruction Page c u, (I) J: 03:= ~ 0) t-"0 o POTWMlWTP Format: u °oe:: () c Comments: .c U ~ <C Cl)ICCI:i2 ~ <t: 0 o State: D LEVEL IV ~ (1)$ e::-2 cl ... l-to ..8~I~o IJ ~ E o Other: 0 NELAC Ef-co' ::l ;:, (J).!::: (j) 3: ~ l-S zo.<Clg>o W "E fij >1 1 W CO (J) "0 (/) c CO U5 H SAMPLE IDENTIFICATION Collection Collection MATRIX a (Name, Location, Interval, etc.) Date Time 1 ---_A~ ... _ #..W-l.~ JlllblH 0'1;2.8 s ... w ~ 2TVJ4-1 n/lblll O'1L1:l S-w 'J 3-=rW4-10 Jl/n/Ji 07'.55 5-\\/ )( 4 M'tJ .. y \\/l~/H ,~ s-\J Y. 5 -rW4-4 l\/1~H 12'1.5· 5-W 1)( 6~Y_:2..0 l \/1~/'( t:!>\O S--W l)t 7~.~_6() l1/iilll 0(;1..0 5-W X 8"T\J4_~ n/15/11 O~\ 1-w 1)( 9 tw4. .... 70 "lIb/I( OgO~ 5-vJ IX 1°-rC\P ~~K 1. & , ~ Infl'"lLH Custbdy rr~~~bl\l~\l;~~ ul;!u: l'~ _-....~ai1JJ1~ Received by (print): OaterTime: Record Relinquished by (print): \l OalerTime: Signalure: V Received by (print): OaterTime: MUST be Signed KAeo Dy UlDOlIY Uate/llme: Sal11Qle Disposal: Return to Client: Lab Disposal: ~ .,..",.- ple5 5UDmlItea to t::.nergy Laoorcnones, Inc. may oe SUDContraCtea to otner ceniTlea laooratones In oraer to comp 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. Cooler 10(5): ? t-.l~t:n)- Receipt Temp ;/,."1 °C On Ice: eN Custody Seal On Bottle Y N On Cooler (bN cS N Intact Signature 6N Match I~ I~ ~ ~nn ~ ~ ~ ~ ~ 0) ~ ~ (,,110773 Signature: Signature: tllgnature: y: q I www.energylab.com Analytical Exes/lines Sines 1952 Helena, MT 871-472-0111 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 866-6B6-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 4th Quarter Chloroform 2011 Analyte Method: A4S00-CI B Sample 10: MBLK9-11120S Chloride Sample 10: C111200S3-001AMS Chloride Sample 10: C111200S3-001AMS Chloride Sample 10: LCS3S-11120S Chloride Qualifiers: RL -Analyte reporting limit. Count Result Units Method Blank ND mg/L Sample Matrix Spike 35.2 mg/L Sample Matrix Spike Duplicate 35.2 mg/L Laboratory Control Sample 3450 mg/L Report Date: 12/21/11 Work Order: C11120053 RL %REC Low Limit High Limit RPO RPOLimit Qual Batch: 111205-CL-TTR-W Run:TITRATION_111205A 12/05/1114:06 1.0 Run: TITRATION_111205A 12/05/11 16:34 1.0 99 90 110 Run: TITRATION_111205A 12/05/11 16:34 1.0 99 90 110 0.0 10 Run: TITRATION 111205A 12/05/11 16:36 - 1.0 97 90 110 ND -Not detected at the reporting limit. Page 9 of 13 I ===',. EN:RGY l..ABORATORIES www.energylab.com Analytical ExeslJsncti Sines ,g52 Helena, MT 871-472-0711 • Billings, MT 800-735-4489 • Casper, WV 888-235-0515 Gillette, Wy 866~6B6~7175 • Rapid City, SD 888-672-1225 • Col/ege Station, IX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Project: 4th Quarter Chloroform 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: C11120046-001CMS Nitrogen, Nitrate+Nitrite as N Sample 10: C11120046-001CMSO Nitrogen, Nitrate+Nitrite as N Qualifiers: RL -Analyte reporting limit. Method Blank ND mg/L Laboratory Control Sample 2.51 mg/L Laboratory Fortified Blank 1.92 mg/L Sample Matrix Spike 2.20 mg/L Sample Matrix Spike Duplicate 2.23 mg/L Report Date: Work Order: RL %REC Low Limit High Limit RPO Run: TECHNICON_111206A 0.10 Run: TECHNICON_111206A 0.10 100 90 110 Run : TECHNICON_111206A 0.10 98 90 110 Run: TECHNICON_111206A 0.10 99 90 110 Run: TECHNICON_111206A 0.10 101 90 110 1.4 ND -Not detected at the reporting limit. 12/21/11 C11120053 RPOLimit Qual Batch: R154102 12/06/11 13:13 12/06/11 13:16 12/06/11 13:18 12/06/11 13:23 12/06/11 13 :26 10 Page 10 of 13 / EN:RGY L.ABORATORIES www.energylab.com Analytical Excellence Since 1952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-&90-2218 QA/QC Summ-ary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Report Date: 12/21/11 Project: 4th Quarter Chloroform 2011 Work Order: C11120053 Analyte Count Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual Method: SW8260B Batch: R154127 Sample 10: C11120053-004CMS 8 Sample Matrix Spike Run: SATURNCA_1 11206A 12/06/11 20:12 Carbon tetrachloride 2600 ug/L 100 132 70 130 S Chloroform 2600 ug/L 100 132 70 130 S Chloromethane 2100 ug/L 100 103 70 130 Methylene chloride 2300 ug/L 100 113 70 130 Surr: 1,2-Dichlorobenzene-d4 1.0 103 80 120 Surr: Dibromofluoromethane 1.0 107 70 130 Surr: p-Bromofluorobenzene 1.0 104 80 120 Surr: Toluene-d8 1.0 105 80 120 Sample 10: C11120053-004CMSO 8 Sample Matrix Spike Duplicate Run: SATURNCA_ 111206A 12/06/11 20:48 Carbon tetrachloride 2400 ug/L 100 122 70 130 7.5 20 Chloroform 2400 ug/L 100 121 70 130 9.2 20 Chloromethane 2000 ug/L 100 98 70 130 5.6 20 Methylene chloride 2200 ug/L 100 108 70 130 4.7 20 Surr: 1,2-Dichlorobenzene-d4 1.0 104 80 120 0.0 10 Surr: Dibromofluoromethane 1.0 109 70 130 0.0 10 Surr: p-Bromofluorobenzene 1.0 106 80 120 0.0 10 Surr: Toluene-d8 1.0 109 80 120 0.0 10 Sample 10: 120611_LCS_4 8 Laboratory Control Sample Run: SATURNCA_111206A 12/06/11 11 :05 Carbon tetrachloride 9.8 ug/L 1.0 98 70 130 Chloroform 10 ug/L 1.0 100 70 130 Chloromethane 9.0 ug/L 1.0 90 70 130 Methylene chloride 9.7 ug/L 1.0 97 70 130 Surr: 1,2-Dichlorobenzene-d4 1.0 108 80 120 Surr: Dibromofluoromethane 1.0 109 70 130 Surr: p-Bromofluorobenzene 1.0 100 80 130 Surr: T oluene-d8 1.0 111 80 120 Sample 10: 120611_MBLK_6 8 Method Blank Run: SATURNCA_ 111206A 12/06/11 12:18 Carbon tetrachloride NO ug/L 1.0 Chloroform NO ug/L 1.0 Chloromethane NO ug/L 1.0 Methylene chloride NO ug/L 1.0 Surr: 1,2-Dichlorobenzene-d4 1.0 106 80 120 Surr: Dibromofluoromethane 1.0 109 70 130 Surr: p-Bromofluorobenzene 1.0 90 80 120 Surr: Toluene-d8 1.0 112 80 120 Qualifiers: RL -Analyte reporting limit. NO -Not detected at the reporting limit. S -Spike recovery outside of advisory limits. Page 11 of 13 EN:RGY LABORATORIES [&'11'" www.energylab.com . ~ Analytical ExcsIIIHlCB Sines '952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 . Casper, WY 888-235-0515 ~illette, WY 866-&86-7175 • Rapid City, SD 888-&72-1225 • College Station, TX 888-690-2218 Workorder Receipt Checklist Denison Mines USA Corp 11111111111111111111111111111111111111111111111 11111111 C11120053 Login completed by: Edith McPike Reviewed by: BL2000\kschroeder Reviewed Date: 12/6/2011 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/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 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' 2.3"C On Ice Yes 0' Yes 0' Date Received: 12/2/2011 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 0' No VOA vials submitted 0 Not Applicable 0 Page 12 of 13 ""U Q) (Q CD ~ (;.) o -~ (;.) Chain of Custody and Analytical Request Record Page _l_ of _1_ TlW;(({tDY •• 'll.'~JII1'.1.'~»&. PLEASE PRINT (Provide as much information as possible.) Company Name: Project Name, PWS, Permit, Etc. Sample Origin EPA/State Compliance: Den;S6() Jv\;n6 L)'Ih Q\A(Arle( C}' lDrcrtorrr1 ;201\ State: lAl Yes [] No 0 Report Mail Address: .?() ,&0)( g6q Contact Name: Phone/Fax: Email: Sampler: (Please Print) D1"nd~n,,\ ~-r gLlSll K~(t..1'\ p""\W1e.r "'~S 67<it ~l -r;:nrlC r-Ho II J'th;r- Invoice Addre~ 5 <Arne Invoice Contact & Phone: Purchase Order: Quote/Bottle Order: v SCt.-v) ( Special Report/Formats: Bill[]£11 W@D@ OO~@Q[J[g@l1~1ID .. Contact Elf prior to Shippea by: 3: r~.-,:.K 0 <u RUSH sample submittal ~o ",.s::: I=' for charges and Cooler ID(s): :gm;gol ~ tQ 0 ~ R scheduling -See G I,(n) ._> 0 >.15 ~(I)~rn~ W Instruction Page Dow o EDD/EDT(Electronic Data) I --o~= ~ C) Xl' "0 Receipt Temp D POlWlWWTP t) c: Comments: Format: ~«~I.Q~ c'( ::J U ?3 D State: o LEVEL IV o .... ml c: V « e °c "-(D.e c: -L;: I-ro ~ c..corgo c D Other: o NELAC I-L-On Ice: ON ~ro ' ~ « :J ........ 3: I-:::J~~I~ 5 zo.. Q)Q ~ W E Custody Seal E >1 W co On Bottle ~~ co {) (/) 'C (I) C On Cooler :$ CO (J U5 H Intact 0 N SAMPLE IDENTIFICATION Collection Collection MATRIX Signature G:>N (Name, Location, Interval, etc.) Date Time Match 1 'TWY-Ol R )I(2lJH o~ 5-vJ 'f I~ 2 \\/;1<1/t t S-W _'1 I~ 1\f\Jt;-07 l:l.Ob 3 Tw4-01 11[;JA./11 \;;l\S b-W Y. 1\.9 Illon 4 ,W i-t-02-n/~/lI \~s 5-\J '" ~ 5 -r;;~ ~~k Cv tt' 3 1....-:::;1 ~ /lh,~ J11/J~ 1< ~ 7 I I~ 8 I~ 0 9 II ~/i\7p6'~ 10 !t:::;:! Custody Relinquished by (prin~): DatelTime: Sign!\! ure: Received by (print): DatelTime: Signature: -J~h.n~ l-\~\ t;do.\l, \.1.} \ I ;;I.o~ \ 1l:~:tO .... -'wNV;( "il:J/J,.,£_. ..j Record Relinquished by (print): '-.J DaterTime; Signature: lj Received by (print): DatefTime: Signature: MUST be _Signed Kecelvea Dy La 00 ralOry: U3teJllme: l:n;t;e:~: JJ--L Sample Disposal: Return to Client: Lab Disposal: J?-J-lf IO\~ r5 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. EN:RGY LABORATORIES www.energylab.com Ana/ytkJII best/Biles Sineg 1952 Helena, MT 877·472-0711 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 86&:-686-7175 Qt Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 QA/QC Summary Report Prepared by Casper, WY Branch Client: Denison Mines USA Corp Report Date: 12/21/11 Project: 4th Quarter Chloroform 2011 Resample Work Order: C11120292 Analyte Count Result .Units RL %REC Low Limit High Limit RPO RPOLimit Qual Method: SW8260B Batch: R 154267 Sample 10: 09-0ec-11_LCS_ 4 8 Laboratory Control Sample Run: GCMS2_111209A 12/09/11 11 :51 Carbon tetrachloride 12 ug/L 1.0 120 70 130 Chloroform 11 ug/L 1.0 112 70 130 Chloromethane 8.8 ug/L 1.0 88 70 130 Methylene chloride 11 ug/L 1.0 111 70 130 Surr: 1,2-Dichlorobenzene-d4 1.0 97 80 120 Surr: Dibromofluoromethane 1.0 104 70 130 Surr: p-Bromofluorobenzene 1.0 102 80 130 Surr: Toluene-d8 1.0 106 80 120 Sample 10: 09-0ec-11_MBLK_6 8 Method Blank Run: GCMS2 -111209A 12/09/11 13:00 Carbon tetrachloride ND ug/L 1.0 Chloroform ND ug/L 1.0 Chloromethane ND ug/L 1.0 Methylene chloride ND ug/L 1.0 Surr: 1 ,2-Dichlorobenzene-d4 1.0 103 80 120 Surr: Dibromofluoromethane 1.0 106 70 130 Surr: p-Bromofluorobenzene 1.0 108 80 120 Surr: T oluene-d8 1.0 102 80 120 Sample 10: C11120292-014AMS 8 Sample Matrix Spike Run: GCMS2_111209A 12/09/11 18:47 Carbon tetrachloride 2300 ug/L 100 114 70 130 Chloroform 4500 ug/L 100 112 70 130 Chloromethane 1600 ug/L 100 81 70 130 Methylene chloride 2100 ug/L 100 107 70 130 Surr: 1,2-Dichlorobenzene-d4 1.0 95 80 120 Surr: Dibromofluoromethane 1.0 108 70 130 Surr: p-Bromofluorobenzene 1.0 98 80 120 Surr: Toluene-d8 1.0 102 80 120 Sample 10: C11120292-014AMSO 8 Sample Matrix Spike Duplicate Run: GCMS2 -111209A 12/09/11 19:22 Carbon tetrachloride 2300 ug/L 100 115 70 130 0.7 20 Chloroform 4500 ug/L 100 112 70 130 0.2 20 Chloromethane 1400 ug/L 100 70 70 130 15 20 Methylene chloride 2200 ug/L 100 108 70 130 1.5 20 Surr: 1,2-Dichlorobenzene-d4 1.0 94 80 120 0.0 10 Surr: Dibromofluoromethane 1.0 109 70 130 0.0 10 Surr: p-Bromofluorobenzene 1.0 104 80 120 0.0 10 Surr: Toluene-d8 1.0 102 80 120 0.0 10 Qualifiers: RL -Analyte reporting limit. ND -Not detected at the reporting limit. Page 20 of 23 E~RGY LABORATORIES www.energyIab.com Anafytical Exesileci Sines 7952 Helena, MT 877-472-0711 It Billings, MT 800-735-4489 It Casper, WY 888-235-0515 Gillette, WY 866-686-1175 • Rapid City, SD 888-612-1225 • College Station, TX 888-690-2218 Workorder Receipt Checklist Denison Mines USA Corp 111111111111111111111111111111111111111111111111111111I C11120292 Login completed by: Edith McPike Reviewed by: BL2000\kschroeder Reviewed Date: 12/9/2011 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 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.) ContaineriT emp 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' 2.4'C On Ice Yes 0' Yes 0 Date Received: 12/9/2011 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 0' No VOA vials submitted 0 Not Applicable 0' Page 21 of 23 Chain of Custody and Analytical Request Record lU.f{tIltY '.ftlfRIU.UU4" PLEASE PRINT _(Provide as much information as possible.l page_' Of~ Con)j2~!. .. Name: _---L/c,AJ J'~~¥J ~L\ Projeo;t Nam .... e. PWS. Permit. Etc. ~. I Sample Origin '(# ~'dJfli chltr~ I' -.¥t/JiiJ/c State: Ur EPA/State Compliance: Yes 0 No 0 Report Mail Ad~ess:, v/J 4 Contact Name: Phone/Fax: f Email: Sampler: (Please Print) aa,pp:k 0(,1 I I Elt:lnJlnc.. iff' g:..;S// blfJf J~ f1+lrvtfL '/% '''1% 222/ 1~11t', Aihi:l~ Invoice Address: ~ 3~l&N\..~ I nvoice Contact & Phone: -SA~ Special Report/Formats: 3: I &~fA\[b W@D@ ~~@(![I~~!ID Dow o POTWNVWTP D State: ----o Other: ---- o EDD/EDT(Electronic Data) Format:, ___ _ o LEVEL IV o NELAC o ~ ~O(l)~ ~al~51 Q) ._> 0 >.1U .3cn C/) C\J :> C Cis(/)::> 03:==~ 0'> ~«~I.Q~ o .... COI c ... Qj$ t::,';:: ~a..rooo E ~I~ I ;j Q,).!::: Q) :s: zo..«I~Cl ~ >1 en SAMPLE IDENTIFICATION Collection Collection I MATRIX (Name, Location, Interval, etc.) Date Time A'l1Af-,12. 1/2,6;ttJJI I i'llS' I ~s; tv' I X 2fbJi.f "agfL 112,6,2111111112.1 i3-W Ix 37IAJtJ (}f( [);,z -1'2Iill/J.1-/ gL_i /1 4·.."AlL{ .. 1M __ 1_1 IJ2.55 If Ix 5,', J (1· I) I)' IbJ--'d~~ __ 'i __ ' J?IJ ~ IAL~Lt; _1_\ lifE I L IX _7:111'-1-/6 I / If3iJ I -C_ Ix ~ IL_ !/'53h I L_ I X TTt~i.J --!l6~r\ \'J331T 1___ I X 7-1\1'-1 -/ g' __ IJ;1 , 1'LiiL 113aJ3 ~ iN J! Custody Record ~~~~~~~~~~~~--~~- Received by (print): Received by (print): 0 LU I () « ..... r <! w w (f) Purchase Order: Quote/Bottle OrdfiJ • ,:-1 R ~ "0 C ~ I U ro s:: '-~ ~ I 5 ro "0 C ro ti5! H DatelTime: Date/Time: Contact ELI prior to ISh;PP"" by, I RUSH sample submittal rr -G;( for charges and Cooler ID(5): scheduling -See Instruction Page Comments: cl.e/' I ReceiptTemp ~.~ On Ice: Custody Seal On Bottle On Cooler Intact Signature Match ~ '~ ~ ~ I~ i~ I~. [0). I~ ~ DC {YN &~ (j N fY)N Iflll//~ tig't~ I;;;] Signature: Signature: MUSTber--------------------------------4~~~~--~~~--------~~------~ Sig ned I SampleDisp06al: 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. Chain of Custody and Analytical Request Record [URreY ,emeUiReUl/i., page-ZofL Company Name: .n{lAl/~/JJI+J I1J',v~~ Re~ Addres~: .if'J4 f.O . ot:NX. 8'1// ... cRIATJj,nl! fAr o~n/ Invoice Adcfress':· . -. _-::I <C:.... 5 £XlAtl'Le Special ReporVFormats: Dow D EDD/EDT(Electronic Data) Format: ___ _ o POlWlWWTP D State: D LEVEL IV o Other:----D NELAC SAMPLE IDENTIFICATION (Name, Location, Interval, etc.) 111J~'Z"L 2-rW L/-ZI 3JiLW'·~Z6 4 • -r1ALt/-11 Collection Date Collection Time 117 7-&/11 J?£1 V2-1-1tJIJI/i/1J 'f 1I1,~tdj/l/s?() I/l'~'?Aill /'I2~ 5 'f~t;tJ --V2'~~ IJJ'/IJ 6 ~~ .. /shAl< (,j~1 (-3' . ,.-. .-~ 71~_ vt' 1J1e.I\ k- 8 , 9 10 Cu stody I R~qui1'fd by (prirt' . ... Daterlime:/l.Jd .. JAiflrJ imeL 12 ·K·tAII PLEASE PRINT (Provide as much information as possible.) Project Na,;' pw. S, Permit, Etc. I s.am .. pie Origin Lilt a~izL' (ib~ IZ .. _s:,~_ S~~_te: iA"C EPA/State Compliance: Yes ~ No 0 z::e: A.k:hon~;~ ~~ zz:) Email: Sampler: (Please Print) ~/U/t!lt~~ Invoice Contact & Phone: I Purchase Order: 6uote/Botile' Ordef':'J c:;,)JM~ ~ 3: &/ill&[b \7@O@ OO§®QD~rn[Q) o '-~O<f)1? ~a:J ;gOI G3 ._> 0 >'00 ~(/)~ ~s: ~ 8~~ ~ g> _ « 001·-32 No. I o ... (DI c: \,.... ... (ti~§(§ ~! ~ ~l:t= ~:i Ef-::;:.sg I ''V :J Q).-Q) $: ,,\ Z a «I g>o '-J f6 >1 ~ (/) ~ MATRIX ~ 3-w / ( 7 ....., 1" / .. , ~"vv x 'X ''I. x x '7 ~ fS/lnature: Received by (print): Received by (print): o ~ w t:. I '0 () § <:t: e ~ m t-E « ~ w 'E W m (j) -g co U5 ..- R u 5 H Dale/Time: Datemme: Contact ELI prior to RUSH sample submittal for charges and scheduling -See I nstruction Page Comments: Shippedby: /= ~ -Ex Cooler ID(s): G/~,,/ ReeeiptTemp ~. L( °c On Ice: Custody Seal On Bottle On Cooler Intact Signature Match l~ ~ !~ .tg Innn ~ ~ .~ ~ ~ ~ IA (£IN Y N a N 6'>N 6N F¥!7c906l1~ Signafure: Signature: Record MUST be S;-d r---------------------------------------------------------~~~~~~~~----~~~~---------------~~I1~9n~a~u~re-: -.----------~ Igne Sample Disposal: Return to Client: Lab Disposal: /{ ri j t.~ 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. www.energylab.com Analytical Excel/snell Sines '952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 • Casper,. WY 888 .. 235-0515 Gillette, Wy 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 December 21, 2011 Denison Mines USA Corp 6425 S Hwy 191 Blanding, UT 84511 Workorder No.: C11110773 ANAL VTICAL SUMMARY REPORT Quote ID: C2975 -Chloroform Sampling Project Name: 4th Quarter Chloroform 2011 Energy Laboratories, Inc. Casper WY received the following 31 samples for Denison Mines USA Corp on 11/18/2011 for analysis. Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test C11110773-001 TW4-3R 11/14/11 7:05 11/18/11 Aqueous Chloride Nitrogen, Nitrate + Nitrite SW8260B VQCs, Standard List C11110773-002 TW4-8R 11/15/116:34 11/18/11 Aqueous Same As Above C 1111 0773-003 TW4-3 11/15/11 8:21 11/18/11 Aqueous Same As Above C 1111 0773-004 TW4-12 11/15/11 9:20 11/18/11 Aqueous Same As Above C 1111 0773-005 TW4-13 11/15/11 9:12 11/18/11 Aqueous Same As Above C 1111 0773-006 TW4-14 11/15/11 9:00 11/18/11 Aqueous Same As Above C11110773-007 TW4-23 11/15/119:55 11/18/11 Aqueous Same As Above C11110773-008 TW4-25 11/15/11 10:20 11/18/11 Aqueous Same As Above C111 10773-009 MW-32 11/16/11 14:50 11/18/11 Aqueous Chloride Nitrogen, Nitrate + Nitrite C1111 0773-01 0 TW4-8 11/16/11 6:57 11/18/11 Aqueous Same As Above C11110773-011 TW4-9 11/16/11 7:13 11/18/11 Aqueous Same As Above C11110773-012 TW4-24 11/16/11 7:23 11/18/11 Aqueous Same As Above C11110773-013 TW4-26 11/16/11 7:33 11/18/11 Aqueous Same As Above C11110773-014 TW4-16 11/16/11 7:43 11/18/11 Aqueous Same As Above C11110773-015 TW4-5 11/16/11 7:53 11/18/11 Aqueous Same As Above C11110773-016 TW4-6 11/16/11 8:02 11/18/11 Aqueous Same As Abpve C11110773-017 TW4-18 11/16/11 8:19 11/18/11 Aqueous Same As Above C11110773-018 TW4-10 11/16/118:42 11/18/11 Aqueous Chloride Nitrogen, Nitrate + Nitrite SW8260B VQCs, Standard List C11110773-019 TW4-22 11/16/11 8:51 11/18/11 Aqueous Chloride Nitrogen, Nitrate + Nitrite C 1111 0773-020 TW4-21 11/16/11 9:01 11/18/11 Aqueous Same As Above C11110773-021 MW-26 11/16/119:28 11/18/11 Aqueous Same As Above C 11110773-022 TW4-11 11/16/11 9:42 11/18/11 Aqueous Chloride Nitrogen, Nitrate + Nitrite SW8260B VQCs, Standard List C 1111 0773-023 TW4-19 11/17/117:55 11/18/11 Aqueous Chloride Nitrogen, Nitrate + Nitrite Page 1 of 43 ,EI'ERGY LABORATORIES C 1111 0773-024 C11110773-025 C 1111 0773-026 C11110773-027 C 1111 0773-028 C11110773-029 C 1111 0773-030 C11110773-031 www.energylab.com Analytical ExCS1/BIICIi Sines 1952 Helena, MT 877-472-0711 • Billings, MT 800-735-4489 ~ Casper, WY 888 .. 235-0515 ~me~e, WY 866-686-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 ANAL VTICAL SUMMARY REPORT MW-4 11/16/1112:3511/18/11 Aqueous Chloride Nitrogen, Nitrate + Nitrite SW8260B VOCs, Standard List TW4-4 11/16/1112:4511/18/11 Aqueous Same As Above TW4-20 11/16/1113:1011/18/11 Aqueous Same As Above TW4-60 11/17/11 8:20 11/18/11 Aqueous Chloride Nitrogen, Nitrate + Nitrite TW4-65 11/15/11 '8:21 11/18/11 Aqueous Chloride Nitrogen, Nitrate + Nitrite SW8260B VOCs, Standard List TW4-70 11/16/11 8:02 11/18/11 Aqueous Same As Above Trip Blank 6092 11/14/110:00 11/18/11 Aqueous SW8260B VOCs, Standard List Temp Blank 11/17/110:00 11/18/11 Aqueous Temperature The analyses presented in this report were performed at Energy Laboratories, Inc., 2393 Salt Creek Hwy., Casper, WY 82601 , unless otherwise noted. Radiochemistry analyses were performed at Energy Laboratories, Inc., 2325 Kerzell Lane, 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. Solid/soil samples are reported on a wet weight basis (as received) unless specifically indicated. Data corrected for moisture content are typically noted as - dry on the report. For agricultural and mining soil parameters/characteristics, all samples are dried and ground prior to sample analysis. If you have any questions regarding these test results, please call. Report Approved By: cS¥~£> LJ~~ Reporting Supervisor Digitally signed by Stephanie Waldrop Date: 2011.12.21 11 :49:44 -07:00 Page 2 of 43 www.energylab.com Analytical ExcslJsncB Sines 1952 Helena, MT 877-472-0711 .., Billings, MT 800-735-4489 • Casper, WY 888-235-0515 Gillette, WY 866-686-7175 " Rapid C~ty, SD 888-672-1225 • College Station, TX 888-690-2218 CLIENT: Denison Mines USA Corp Project: 4th Quarter Chloroform 2011 Report Date: 12/21/11 Sample Delivery Group: C11110773 CASE NARRATIVE COMMENTS REGARDING CANCELLED SAMPLES The VOC analysis was cancelled on the following samples due to the analysis being run past the recommended hold time: MW-32, TW4-8, TW4-9, TW4-24, TW4-26, TW4-16, TW4-5, TW4-6, TW4-18, TW4-22, TW4-21, MW-26, TW4-19, TW4-60. ORIGINAL SAMPLE SUBMITTAL(S) All original sample submittals have been returned with the data package. SAMPLE TEMPERATURE COMPLIANCE: 40C (±2OC) 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 CERTI FICATIONS: 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 43 El\ER6Y LABORATORIES www.energylab.com Analytical ExcsllsncB smes 1952 ~ Helena, MT 871-472-0711 " Billings, MT 800-135-4489 . Casper. WY 888-235-0515 ) q!" .'Gill~tte,wy 866-&86-7175 • Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 ANAL VTICAL SUMMARY REPORT December 21 , 2011 Denison Mines USA Corp 6425 S Hwy 191 Blanding, UT 84511 Workorder No.: C11120053 Quote I D: C2975 -Chloroform Sampling Project Name: 4th Quarter Chloroform 2011 Energy Laboratories, Inc. Casper WY received the following 6 samples for Denison Mines USA Corp on 12/2/2011 for analysis. Sample 10 Client Sample 10 Collect Date Receive Date Matrix Test C 11120053-00 1 TW4-07R 11/28/11 6:58 12/02/11 Aqueous Chloride Nitrogen, Nitrate + Nitrite SW8260B VQCs, Standard List C11120053-002 TW4-07 11/29/11 12:06 12/02/11 Aqueous Same As Above C 11120053-003 TW4-01 11/29/11 12:15 12/02/11 Aqueous Same As Above C 11120053-004 TW4-02 11/29/11 12 :25 12/02/11 Aqueous Same As Above C11120053-005 Trip Blank 6463 11/29/11 0:00 12/02/11 Aqueous SW8260B VQCs, Standard List C11120053-006 Temp Blank 11/29/11 0:00 12/02/11 Aqueous Temperature The analyses presented in this report were performed at Energy Laboratories, Inc., 2393 Salt Creek Hwy., Casper, WY 82601 , unless otherwise noted. Radiochemistry analyses were performed at Energy Laboratories, Inc., 2325 Kerzell Lane, 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. Solid/soil samples are reported on a wet weight basis (as received) unless specifically indicated. Data corrected for moisture content are typically noted as - dry on the report. For agricultural and mining soil parameters/characteristics, all samples are dried and ground prior to sample analysis. If you have any questions regarding these test results, please call. Report Approved By: cS¥~ D LJcJ.~ Reporting Supervisor Digitally signed by Stephanie Waldrop Date: 2011.12.2111:59:12 -07:00 Page 1 of 13 www.energylab.com Analytical Exesllence Sines 1952 Helena, MT 877-472-0711 • Billings, MT 800-735-448S -Casper, WY 888-235-0515 Gillette, Wv866-686-7175 • Rapid ctty, so 888-672-1225 • College Station, IX 888-690-2218 CLIENT: Denison Mines USA Corp Project: 4th Quarter Chloroform 2011 Report Date: 12/21/11 Sample Delivery Group: C11120053 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 13 EN:RGY I..ABORATORIES www.energylab.com ~ .. ". Analytical Excsl/BnCB smcs 1952 J Heiena, MT 877 -472-071 T • Billings, MT 808-735-4489 • Casper, WY 888-235-8515 :~iU~tte,'WY866-686-7175 • Rapid City, SD 888-672-1225 • College Station, TX 888-690-2218 December 21, 2011 Denison Mines USA Corp 6425 S Hwy 191 Blanding, UT 84511 Workorder No.: C11120292 ANALYTICAL SUMMARY REPORT Quote 10: C2975 -Chloroform Sampling Project Name: 4th Quarter Chloroform 2011 Resample Energy Laboratories, Inc. Casper WY received the following 17 samples for Denison Mines USA Corp on 12/9/2011 for analysis. Sample ID Client Sample ID Collect Date Receive Date Matrix Test C11120292-001 MW-32 12/06/11 14:05 12/09/11 Aqueous SW8260B VQCs, Standard List C11120292-002 TW4-08R 12/06/11 7:21 12/09/11 Aqueous Same As Above C11120292-003 TW4-08 12/07/11 12:48 12/09/11 Aqueous Same As Above C11120292-004 TW4-09 12/07/11 12 :55 12/09/11 Aqueous Same As Above C 11120292-005 TW4-24 12/07/11 13:03 12/09/11 Aqueous Same As Above C 11120292-006 TW4-26 ~ 12/07/11 13: 13 12/09/11 Aqueous Same As Above C11120292-007 TW4-16 12/07/11 13:21 12/09/11 Aqueous Same As Above C 11120292-008 TW4-05 12/07/11 13:30 12/09/11 Aqueous Same As Above C11120292-009 TW4-06 12/07/11 13:37 12/09/11 Aqueous Same As Above C11120292-010 TW4-18 12/07/11 13:50 12/09/11 Aqueous Same As Above C11120292-011 TW4-22 12/07/11 13 :59 12/09/11 Aqueous Same As Above C11120292-012 TW4-21 12/07/11 14:09 12/09/11 Aqueous Same As Above C11120292-013 MW-26 12/05/11 13:30 12/09/11 Aqueous Same As Above C11120292-014 TW4-19 12/05/11 14:25 12/09/11 Aqueous Same As Above C11120292-015 TW4-60 12/08/118:10 12/09/11 Aqueous Same As Above C11120292-016 Trip Blank 6381 12/08/11 0:00 12/09/11 Aqueous Same As Above C11120292-017 Temp Blank 12/08/11 0:00 12/09/11 Aqueous Temperature The analyses presented in this report were performed at Energy Laboratories, Inc., 2393 Salt Creek Hwy., Casper, WY 82601, unless otherwise noted. Radiochemistry analyses were performed at Energy Laboratories, Inc., 2325 Kerzell Lane, 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. Solid/soil samples are reported on a wet weight basis (as received) unless specifically indicated. Data corrected for moisture content are typically noted as - dry on the report. For agricultural and mining soil parameters/characteristics, all samples are dried and ground prior to sample analysis. If you have any questions regarding these test results, please call. Report Approved By: c5¥~D LJeJ~ Reporting Supervisor Digitally signed by Stephanie Waldrop Date: 2011.12.21 12:25:17 -07:00 Page 1 of 23 www.energylab.com Analytical Exesl/snell Sines '.952 Helena, MT 877-472-071 1 • Billings, MT 800-735-4489 • Casper, WY 888-235-0515 'Gillette, Wy 866-&86-7175 • Rapid City, SD 888-672-1225 • College Station, IX 888-690-2218 CLIENT: Denison Mines USA Corp Project: 4th Quarter Chloroform 2011 Resample Report Date: 12/21/11 Sample Delivery Group: C11120292 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 23 . Tab! Quality Assurance and Data Validation Tables I-I: Field QAlQC Evaluation 2x Casing Volume 2x Casing Volume Location Volume Pumped Volume Pumped Volume Check Conductivity RPD pH RPD Temp RPD Redox Potential RPD Turbidity Continuously MW-4 NA pumped well --2010 N/A 6.77 TW4-01 69.60 57.00 70 57 Pumped Dry 2115 N/A 6.24 TW4-02 68.50 44.00 69 44 Pumped Dry 3158 NIA 6.78 TW4-03 119.76 110.00 120 110 Pumped Dry 1974 N/A 6.62 Continuously TW4-04 NA pumped well --2406 NIA 6.66 TW4-05 83.62 99.00 84 99 OK 1506 1503 0.20 6.45 6.45 TW4-05 83.36 99.00 83 99 OK 1566 1559 0.45 6.73 6.73 TW4-06 35.64 22.00 36 22 Pumped Dry 2838 N/A 6.24 TW4-06 35.38 19.00 35 19 Pumped Dry 3445 N/A 6.5 TW4-07 67.82 55.00 68 55 Pumped Dry 1623 N/A 6.8 TW4-08 76.32 88 .00 76 88 OK 3178 3174 0.13 6.82 6.82 TW4-08 76.12 88 .00 76 88 OK 3385 3382 0.09 7.09 7.10 TW4-09 86.32 110.00 86 110 OK 2479 2478 0.04 9.22 6.22 TW4-10 72.22 42.00 72 42 Pumped Dry 1297 N/A 6.43 TW4-11 55.88 55.00 56 55 Pumped Dry 1437 N/A 6.57 TW4-12 80.42 88.00 80 88 OK 958 958.3 0.03 6.99 6.99 TW4-13 73.72 44.00 74 44 Pumped Dry 1553 N/A 6.89 TW4-14 7.64 5.50 8 6 · Pumped Dry 21.3 N/A 8.01 TW4-15 (MW Continuously 26) NA pumped well --3522 N/A 6.44 TW4-15 (MW Continuously 26) NA pumped well --r 3643 N/A 6.87 TW4-16 104.72 110.00 105 110 Pumped Dry 3470 N/A 6.54 TW4-16 104.66 99.00 105 99 Pumped Dry 3658 N/A 6.83 TW4-17 (MW 32) 73.90 81.37 74 81 OK 3952 3951 0.03 6.23 6.23 TW4-17 (MW 32) 73.06 91.14 73 91 OK 4149 4157 0.19 6.55 6.56 TW4-18 105.84 121.00 106 121 OK 1927 1912 0.78 6.29 6.27 TW4-18 104.66 110.00 105 110 OK 1990 1989 0.05 6.52 6.52 Continuously TW4-19 NA pumped well --2929 N/A 6.7 Continuously TW4-19 NA pumped well --3058 N/A 6.83 Continuously TW4-20 NA pumped well --3338 N/A 6.05 TW4-21 87.12 88.00 87 88 OK 3421 3429 0.23 6.74 6.75 TW4-21 87.26 88.00 87 88 OK 3635 3631 0.11 7.04 7.06 TW4-22 78.26 55.00 78 55 Pumped Dry 5088 N/A 6.61 TW4-22 77.96 55.00 78 55 Pumped Dry 5431 N/A 6.86 TW4-23 63.98 77.00 64 77 OK 3655 3654 0.03 6.2 6.23 TW4-24 74.90 99.00 75 99 OK 9436 9442 0.06 6.56 6.56 TW4-24 74.68 99.00 75 99 OK 9980 9983 0.03 6.8 6.8 TW4-25 115.12 132.00 115 132 OK 2954 2950 0.14 6.96 6.97 TW4-26 28.9 11 29 11 Pumped Dry 5902 N/A 4.20 TW4-26 28.74 11 29 11 Pumped Dry 6223 N/A 4.02 MW-4, TW4-4, TW4-15,T \y4-19, and )'W4-20 are contmuallypuIllped w~lls.< <. TW4-01, TW4-02,TW4-03, TW4-06, TW4-07, TW4-10, TW4-11, TW4-13, TW4-14, TW4-16, TW4-22, and TW4-26 were pumped dry and sampled after recovery. RPD > than 10% N/A 14.5 N/A 457 NIA NIA 14.18 N/A 459 NIA N/A 14.58 N/A 529 N/A N/A 13.99 N/A 494 NIA N/A 15.14 N/A 421 NIA 0.00 14.91 14.91 0.00 446 445 0.22 860 0.00 14.85 14.85 0.00 284 284 0.00 1695 N/A 14.65 N/A 488 N/A N/A 13.8 N/A 288 N/A N/A 13.23 N/A 332 NIA 0.00 14.19 14.19 0.00 230 227 1.31 36.0 0.14 14.26 14.26 0.00 158 156 1.27 122.0 0.00 15.33 15.39 0.39 277 273 1.45 126.1 N/A 15.07 N/A 466 NIA NIA 14.31 N/A 447 N/A 0.00 14.54 14.56 0.14 480 479 0.21 2.9 N/A 14.67 N/A 464 N/A N/A 14.06 N/A 381 NIA N/A 16.62 N/A 343 N/A N/A 13.83 N/A 295 N/A NIA 14.48 NIA 401 N/A N/A 13.96 N/A 244 N/A 0.00 14.13 14.13 0.00 271 270 0.37 10 0.15 13.7 13.7 0.00 186 186 0.00 5.3 0.32 15.08 15.09 0.07 483 482 0.21 290 0.00 14.95 14.95 0.00 286 287 0.35 590 N/A 14.71 N/A 272 N/A N/A 13.59 N/A 245 N/A N/A 15.2 N/A 363 N/A 0.15 15:'66 15.67 0.06 467 467 0.00 84 0.28 15.4 15.45 0.32 264 266 0.75 28.2 N/A 15.21 N/A 493 N/A N/A 14.73 N/A 269 N/A 0.48 14.18 14.18 0.00 298 297 0.34 59.3 0.00 14.69 14.69 0.00 429 428 0.23 1.3 0.00 14.55 14.55 0.00 268 268 0.00 11.4 0.14 14.68 14.68 0.00 415 413 0.48 13 N/A 13.9 N/A 508 N/A N/A 12.76 N/A 489 N/A iThe QAP states that turbidity should be less than 5 Nephelometric 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 p'rior to ~amp.ling. As such the noted observations regarding turbidi!y' measurements less than 5 NTU are included for information RU oses only. 0.0 178.1 41.2 40.6 9.2 861 1690 301 539 20.9 36 115 127 20.1 15 3 9.9 26.4 0.00 1.00 115 103 10.2 5.2 292 583 0 5.3 0.00 85 27.9 51 18 58 1.3 11.5 13.1 9.3 151 RPD N/A N/A N/A NIA NIA 0.12 0.30 NIA NIA NIA 0.00 5.91 0.71 N/A N/A 3.39 NIA N/A NIA N/A N/A N/A 1.98 1.90 0.69 1.19 N/A N/A N/A 1.18 1.07 N/A N/A 2.22 0.00 0.87 0.77 N/A N/A 1-2: Holding Time Evaluation Sample Holding Collection Lab Analysis Allowed Time Location Constituent Date Date Holding Time Holding Time Check MW-04 Chlorofonn 11116/2011 11129/2011 13.00 days 14 days OK MW-04 Chloromethane 11116/2011 11129/2011 13.00 days 14 days OK MW-04 Methylene chloride 11/16/2011 1112912011 13.00 days 14 days OK MW-04 Carbon Tetrachloride 11116/2011 11129/2011 13.00 days 14 days OK MW-04 Nitrogen 11116/2011 11/2112011 5.00 days 28 days OK MW-04 Chloride 11116/2011 121512011 19.00 days 28 days OK TW4-01 Chlorofonn 1112912011 12/612011 7.00 days 14 days OK TW4-01 Chloromethane 11129/2011 121712011 8.00 days 14 days OK TW4-01 Methylene chloride 11129/2011 121712011 8.00 days 14 days OK TW4-01 Carbon Tetrachloride 11129/2011 121712011 8.00 days 14 days OK TW4-01 Nitrogen 11129/2011 12/6/2011 7.00 days 28 days OK TW4-01 Chloride 1112912011 12/512011 6.00 days 28 days OK TW4-02 Chlorofonn 11/29/2011 12/612011 7.00 days 14 days OK TW4-02 Chloromethane 1112912011 121712011 8.00 days 14 days OK TW4-02 Methylene chloride 11/29/2011 121712011 8.00 days 14 days OK TW4-02 Carbon Tetrachloride 11129/2011 121712011 8..00 days 14 days OK TW4-02 Nitrogen 1112912011 12/6/2011 7.00 days 28 days OK TW4-02 Chloride 11129/2011 12/5/2011 6.00 days 28 days OK TW4-03 Chlorofonn 11115/2011 1112312011 8.00 days 14 days OK TW4-03 Chloromethane 11115/2011 11/23/2011 8.00 days 14 days OK TW4-03 Methylene chloride 11115/2011 11/23/2011 8.00 days 14 days OK TW4-03 Carbon Tetrachloride 11115/2011 1112312011 8.00 days 14 days OK TW4-03 Nitrogen 1111512011 1112112011 6.00 days 28 days OK TW4-03 Chloride 11115/2011 1212/2011 17.00 days 28 days OK TW4-04 Chlorofonn 11116/2011 11129/2011 13.00 days 14 days OK TW4-04 Chloromethane 11116/2011 11/29/2011 13.00 days 14 days OK TW4-04 Methylene chloride 11116/2011 11129/2011 13.00 days 14 days OK TW4-04 Carbon Tetrachloride 11116/2011 11129/2011 13.00 days 14 days OK TW4-04 Nitrogen 11116/2011 1112112011 5.00 days 28 days OK TW4-04 Chloride 1111612011 121512011 19.00 days 28 days OK TW4-05 Chlorofonn 1217/2011 1219/2011 2.00 days 14 days OK TW4-05 Chloromethane 121712011 12/912011 2.00 days 14 days OK TW4-05 Methylene chloride 1217/2011 1219/2011 2.00 days 14 days OK TW4-05 Carbon Tetrachloride 1217/2011 12/912011 2.00 days 14 days OK TW4-05 Nitrogen 11116/2011 11/2112011 5.00 days 28 days OK TW4-05 Chloride 11116/2011 12/2/2011 16.00 days 28 days OK TW4-06 Chlorofonn 121712011 12110/2011 3.00 days 14 days OK TW4-06 Chloromethane 1217/2011 1211012011 3.00 days 14 days OK TW4-06 Methylene chloride 1217/2011 12110/2011 3.00 days 14 days OK TW4-06 Carbon Tetrachloride 121712011 12110/2011 3.00 days 14 days OK TW4-06 Nitrogen 11116/2011 11/2112011 5.00 days 28 days OK TW4-06 Chloride 1111612011 12/2/2011 16.00 days 28 days OK TW4-07 Chlorofonn 11129/2011 12/6/2011 7.00 days 14 days OK TW4-07 Chloromethane 11129/2011 1217/2011 8.00 days 14 days OK TW4-07 Methylene chloride 1112912011 121712011 8.00 days 14 days OK TW4-07 Carbon Tetrachloride 11/2912011 1217/2011 8.00 days 14 days OK TW4-07 Nitrogen 11129/2011 12/612011 7.00 days 28 days OK 1-2: Holding Time Evaluation Sample Holding Collection Lab Analysis Allowed Time Location Constituent Date Date Holding Time Holding Time Check TW4-07 Chloride 11129/2011 12/5/2011 6.00 days 28 days OK TW4-08 Chloroform 12/7/2011 12/9/2011 2.00 days 14 days OK TW4-08 Chloromethane 12/7/2011 12/9/2011 2.00 days 14 days OK TW4-08 Methylene chloride 12/7/2011 12/9/2011 2.00 days 14 days OK TW4-08 Carbon Tetrachloride 12/7/2011 12/9/2011 2.00 days 14 days OK TW4-08 Nitrogen 11116/2011 1112112011 5.00 days 28 days OK TW4-08 Chloride 11116/2011 12/2/2011 16.00 days 28 days OK TW4-09 Chloroform 12/7/2011 1219/2011 2.00 days 14 days OK TW4-09 Chloromethane 12/7/2011 12/9/2011 2.00 days 14 days OK TW4-09 Methylene chloride 12/7/2011 1219/2011 2.00 days 14 days OK TW4-09 Carbon Tetrachloride 12/7/2011 12/9/2011 2.00 days 14 days OK TW4-09 Nitrogen 11116/2011 1112112011 5.00 days 28 days OK TW4-09 Chloride 11116/2011 12/2/2011 16.00 days 28 days OK . TW4-I0 Chloroform 11116/2011 11123/2011 7.00 days 14 days OK TW4-I0 Chloromethane 11116/2011 11/23/2011 7.00 days 14 days OK TW4-I0 Methylene chloride 11116/2011 11123/2011 7.00 days 14 days OK TW4-I0 Carbon Tetrachloride 11116/2011 11/23/2011 7.00 days 14 days OK TW4-I0 Nitrogen 11116/2011 1112112011 5.00 days 28 days OK TW4-I0 Chloride 11116/2011 12/2/2011 16.00 days 28 days OK TW4-11 Chloroform 11116/2011 11129/2011 13.00 days 14 days OK TW4-11 Chloromethane 11116/2011 11129/2011 13.00 days 14 days OK TW4-11 Methylene chloride 11116/2011 11129/2011 13.00 days 14 days OK TW4-11 Carbon Tetrachloride 11116/2011 11129/2011 13.00 days 14 days OK TW4-ll Nitrogen 11116/2011 1112112011 5.00 days 28 days OK TW4-ll Chloride 11116/2011 12/5/2011 19.00 days 28 days OK TW4-12 Chloroform 11115/2011 11/23/2011 8.00 days 14 days OK TW4-12 Chloromethane 11115/2011 11/23/2011 8.00 days 14 days OK TW4-12 Methylene chloride 11115/2011 11123/2011 8.00 days 14 days OK TW4-12 Carbon Tetrachloride 11115/2011 11/23/2011 8.00 days 14 days OK TW4-12 Nitrogen 11115/2011 1112112011 6.00 days 28 days OK TW4-12 Chloride 11115/2011 12/2/2011 17.00 days 28 days OK TW4-13 Chloroform 11115/2011 11123/2011 8.00 days 14 days OK TW4-13 Chloromethane 11115/2011 11123/2011 8.00 days 14 days OK TW4-13 Methylene chloride 11115/2011 11/23/2011 8.00 days 14 days OK TW4-13 Carbon Tetrachloride 11115/2011 11123/2011 8.00 days 14 days OK TW4-13 Nitrogen 11115/2011 11/2112011 6.00 days 28 days OK TW4-13 Chloride 11115/2011 12/2/2011 17.00 days 28 days OK TW4-l4 Chloroform 11115/2011 11123/2011 8.00 days 14 days OK TW4-14 Chloromethane 11115/2011 11123/2011 8.00 days 14 days OK TW4-14 Methylene chloride 11115/2011 11123/2011 8.00 days 14 days OK TW4-14 Carbon Tetrachloride 11115/2011 11123/2011 8.00 days 14 days OK TW4-14 Nitrogen 11115/2011 11/2112011 6.00 days 28 days OK TW4-14 Chloride 11115/2011 12/2/2011 17.00 days 28 days OK MW-26 Chloroform 12/5/2011 12/9/2011 4.00 days 14 days OK MW-26 Chloromethane 12/5/2011 12110/2011 5.00 days 14 days OK MW-26 Methylene chloride 12/5/2011 12110/2011 5.00 days 14 days OK MW-26 Carbon Tetrachloride 12/5/2011 12/10/2011 5.00 days 14 days OK MW-26 Nitrogen 11116/2011 1112112011 5.00 days 28 days OK 1-2: Holding Time Evaluation Sample Holding Collection Lab Analysis Allowed Time Location Constituent Date Date Holding Time Holding Time Check MW-26 Chloride 11116/2011 12/5/2011 19.00 days 28 days OK TW4-16 Chloroform 12/7/2011 1219/2011 2.00 days 14 days OK TW4-16 Chloromethane 12/7/2011 1219/2011 2.00 days 14 days OK TW4-16 Methylene chloride 12/7/2011 1219/2011 2.00 days 14 days OK TW4-16 Carbon Tetrachloride 12/7/2011 1219/2011 2.00 days 14 days OK TW4-16 Nitrogen 11116/2011 11/2112011 5.00 days 28 days OK TW4-16 Chloride 11116/2011 1212/2011 16.00 days 28 days OK MW-32 Chloroform 12/6/2011 12/9/2011 3.00 days 14 days OK MW-32 Chloromethane 12/6/2011 12/9/2011 3.00 days 14 days OK MW-32 Methylene chloride 12/6/2011 12/9/2011 3.00 days 14 days OK MW-32 Carbon Tetrachloride 12/6/2011 12/9/2011 3.00 days 14 days OK MW-32 Nitrogen 11116/2011 1112112011 5.00 days 28 days OK MW-32 Chloride 11116/2011 1212/2011 16.00 days 28 days OK TW4-18 Chloroform 12/7/2011 1219/201'1 2.00 days 14 days OK TW4-18 Chloromethane 12/7/2011 1219/2011 2.00 days 14 days OK TW4-18 Methylene chloride 12/7/2011 1219/2011 2.00 days 14 days OK TW4-18 Carbon Tetrachloride 12/7/2011 1219/2011 2.00 days 14 days OK TW4-18 Nitrogen 11116/2011 11/2112011 5.00 days 28 days OK TW4-18 Chloride 11116/2011 12/2/2011 16.00 days 28 days OK TW4-19 Chloroform 12/5/2011 12/9/2011 4.00 days 14 days OK TW4-19 Chloromethane 12/5/2011 12110/2011 5.00 days 14 days OK TW4-19 Methylene chloride 12/5/2011 12110/2011 5.00 days 14 days OK TW4-19 Carbon Tetrachloride 12/5/2011 12/10/2011 5.00 days 14 days OK TW4-19 Nitrogen 11117/2011 11/2112011 4.00 days 28 days OK TW4-19 Chloride 11117/2011 12/5/2011 18.00 days 28 days OK TW4-20 Chloroform 11116/2011 11128/2011 12.00 days 14 days OK TW4-20 Chloromethane 11116/2011 11 /28 /2011 12.00 days 14 days OK ' TW4-20 Methylene chloride 11116/2011 11128/2011 12.00 days 14 days OK TW4-20 Carbon Tetrachloride 11116/2011 11128/2011 12.00 days 14 days OK TW4-20 Nitrogen 11116/2011 1112112011 5.00 days 28 days OK TW4-20 Chloride 11116/2011 1215/2011 19.00 days 28 days OK TW4-21 Chloroform 12/7/2011 1219/2011 2.00 days 14 days OK TW4-21 Chloromethane 12/7/2011 12110/2011 3.00 days 14 days OK TW4-21 Methylene chloride 12/7/2011 12110/2011 3.00 days 14 days OK TW4-21 Carbon Tetrachloride 12/7/2011 12110/2011 3.00 days 14 days OK TW4-21 Nitrogen 11116/2011 11/2112011 5.00 days 28 days OK TW4-21 Chloride 11116/2011 12/2/2011 16.00 days 28 days OK TW4-22 Chloroform 12/7/2011 1219/2011 2.00 days 14 days OK TW4-22 Chloromethane 12/7/2011 12110/2011 3.00 days 14 days OK TW4-22 Methylene chloride 12/7/2011 12110/2011 3.00 days 14 days OK TW4-22 Carbon Tetrachloride 12/7/2011 12110/2011 3.00 days 14 days OK T\y4-22 Nitrogen 11116/2011 1112112011 5.00 days 28 days OK TW4-22 Chloride 11116/2011 12/2/2011 16.00 days 28 days OK TW4-23 Chloroform 11115/2011 11123/2011 8.00 days 14 days OK TW4-23 Chloromethane 11115/2011 11123/2011 8.00 days 14 days OK TW4-23 Methylene chloride 11115/2011 11123/2011 8.00 days 14 days OK TW4-23 Carbon Tetrachloride 11115/2011 11123/2011 8.00 days 14 days OK TW4-23 Nitrogen 11115/2011 1112112011 6.00 days 28 days OK I-2: Holding Time Evaluation Sample Holding Collection Lab Analysis Allowed Time Location Constituent Date Date Holding Time Holding Time Check TW4-23 Chloride 11115/2011 12/2/2011 17.00 days 28 days OK TW4-24 Chlorofonn 12/7/2011 1219/2011 2.00 days 14 days OK TW4-24 Chloromethane 12/7/2011 1219/2011 2.00 days 14 days OK TW4-24 Methylene chloride 12/7/2011 1219/2011 2.00 days 14 days OK TW4-24 Carbon Tetrachloride 12/712011 1219/2011 2.00 days 14 days OK TW4-24 Nitrogen 1111612011 1112112011 5.00 days 28 days OK TW4-24 Chloride 11116/2011 1212/2011 16.00 days 28 days OK TW4-25 Chlorofonn 11115/2011 11123/2011 8.00 days 14 days OK TW4-25 Chloromethane 11115/2011 1112312011 8.00 days 14 days OK TW4-25 Methylene chloride 11115/2011 11123/2011 8.00 days 14 days OK TW4-25 Carbon Tetrachloride 11115/2011 11123/2011 8.00 days 14 days OK TW4-25 Nitrogen 11115/2011 1112112011 6.00 days 28 days OK TW4-25 Chloride 1111512011 1212/2011 17.00 days 28 days OK TW4-26 Chlorofonn 12/712011 121912011 2.00 days 14 days OK TW4-26 Chloromethane 12/712011 1219/2011 2.00 days 14 days OK TW4-26 Methylene chloride 12/7/2011 1219/2011 2.00 days 14 days OK TW4-26 Carbon Tetrachloride 12/7/2011 1219/2011 2.00 days 14 days OK TW4-26 Nitrogen 11116/2011 1112112011 5.00 days 28 days OK TW4-26 Chloride 11/1612011 12/2/2011 16.00 days 28 days OK TW4-60 Chlorofonn 12/8/2011 12110/2011 2.00 days 14 days OK TW4-60 Chloromethane 12/8/2011 12110/2011 2.00 days 14 days OK TW4-60 Methylene chloride 12/8/2011 12110/2011 2.00 days 14 days OK TW4-60 Carbon Tetrachloride 12/812011 1211012011 2.00 days 14 days OK TW4-60 Nitrogen 1111712011 11/2112011 4.00 days 28 days OK TW4-60 Chloride 1111712011 1215/2011 18.00 days 28 days OK TW4-65 Chlorofonn 11 /15/2011 11128/2011 13.00 days 14 days OK TW4-65 Chloromethane 1111512011 11128/2011 13.00 days 14 days OK TW4-65 Methylene chloride 11115/2011 11128/2011 13.00 days 14 days OK TW4-65 Carbon Tetrachloride 11115/2011 1112812011 13.00 days 14 days OK TW4-65 Nitrogen 11115/2011 1112112011 6.00 days 28 days OK TW4-65 Chloride 1111512011 12/5/2011 20.00 days 28 days OK TW4-70 Chlorofonn 11116/2011 11/28/2011 12 .00 days 14 days OK TW4-70 Chloromethane 1111612011 11128/2011 12.00 days 14 days OK TW4-70 Methylene chloride 11116/2011 11128/2011 12.00 days 14 days OK TW4-70 Carbon Tetrachloride 11116/2011 11128/2011 12.00 days 14 days OK TW4-70 Nitrogen 11116/2011 11/2112011 5.00 days 28 days OK TW4-70 Chloride 11116/2011 12/512011 19.00 days 28 days OK Table 1-3 Recipt Temperature Check Sample Batch Wells in Batch Temperature Cllll0773 TW4-03R, TW4-0SR, TW4-03, TW4-12, TW4-13, TW4-2.3°C 14, TW4-23, TW4-25, MW-32, TW4-0S, TW4-09, TW4- 24,TW4-26, TW4-16, TW4-05, TW4-06, TW4-1S, TW4- 10, TW4-22, TW4-21, MW-26, TW4-11, TW4-19, MW- 04, TW4-04, TW4-20, TW4-60, TW4-65, TW4-70 C11120053 TW 4-07R, TW 4-07, TW 4-01, TW 4-02 2.3°C Cl1120292 MW-32, TW4-0SR, TW4-0S, TW4-09, TW4-24, TW4-26, 2.4°C TW4-16, TW4-05, TW4-06, TW4-1S, TW4-22, TW4-21, MW-26, TW4-19, TW4-60 I -4 Analytical Method Check Parameter Method, Method Used by Lab Carbon Tetrachloride SW8260B SW8260B Chloride A4500-CI B A4500-CIB Chlorofonn SW8260B SW8260B Chloromethane SW8260B SW8260B Methylene chloride SW8260B SW8260B Nitrogen E353.2 E353.2 All parameters were analyzed using the reporting method specificied in the QAP 1-5 Reporting Limit Evaluation Rqd' Lab Reporting Reporting Qualifier Location Constituent Limit Limit Check MW-04 Chloroform 100 ug/L 1.0 ug/L OK MW-04 Chloromethane 1 ug/L 1.0 ug/L OK MW-04 Methylene chloride 1 ug/L 1.0 ug/L OK MW-04 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK MW-04 Nitrogen 0.5 mg/L 0.1 mg/L OK MW-04 Chloride 1 mg/L 1 mg/L OK TW4-01 Chloroform 100 ug/L 1.0 ug/L OK TW4-01 Chloromethane 1 ug/L 1.0 ug/L OK TW4-01 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-01 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-01 Nitrogen 0.5 mg/L 0.1 mg/L OK TW4-01 Chloride 1 mg/L 1 mg/L OK TW4-02 Chloroform 100 ug/L 1.0 ug/L OK TW4-02 Chloromethane 1 ug/L 1.0 ug/L OK TW4-02 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-02 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-02 Nitrogen 0.5 mg/L 0.1 mg/L OK TW4-02 Chloride 1 mg/L 1 mg/L OK TW4-03 Chloroform 1 ug/L 1.0 ug/L OK TW4-03 Chloromethane 1 ug/L 1.0 ug/L OK TW4-03 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-03 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-03 Nitrogen 0.5 mg/L 0.1 mg/L OK TW4-03 Chloride 1 mg/L 1 mg/L OK TW4-04 Chloroform 100 ug/L 1.0 ug/L OK TW4-04 Chloromethane 1 ug/L 1.0 ug/L OK TW4-04 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-04 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-04 Nitrogen 1 mg/L 0.1 mg/L OK TW4-04 Chloride 1 mg/L 1 mg/L OK TW4-05 Chloroform 1 ug/L 1.0 ug/L OK TW4-05 Chloromethane 1 ug/L 1.0 ug/L OK TW4-05 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-05 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-05 Nitrogen 1 mg/L 0.1 mg/L OK TW4-05 Chloride 1 mg/L 1 mg/L OK TW4-06 Chloroform 1 ug/L 1.0 ug/L OK TW4-06 Chloromethane 1 ug/L 1.0 ug/L OK TW4-06 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-06 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-06 Nitrogen 0.1 mg/L 0.1 mg/L OK TW4-06 Chloride 1 mg/L 1 mg/L OK TW4-07 Chloroform 100 ug/L 1.0 ug/L OK TW4-07 Chloromethane 1 ug/L 1.0 ug/L OK TW4-07 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-07 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-07 Nitrogen 0.5 mg/L 0.1 mg/L OK 1-5 Reporting Limit Evaluation Rqd' Lab Reporting Reporting Qualifier Location Constituent Limit Limit Check TW4-07 Chloride 1 mg/L 1 mg/L OK TW4-08 Chloroform 1 ug/L 1.0 ug/L OK TW4-08 Chloromethane 1 ug/L 1.0 ug/L OK TW4-08 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-08 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-08 Nitrogen 0.1 mg/L 0.1 mg/L OK TW4-08 Chloride 1 mg/L 1 mg/L OK TW4-09 Chloromethane 1 ug/L 1.0 ug/L OK TW4-09 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-09 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-09 Nitrogen 0.2 mg/L 0.1 mg/L OK TW4-09 Chloride 1 mg/L 1 mg/L OK TW4-10 Chloroform 10 ug/L 1.0 ug/L OK TW4-l0 Chloromethane 1 ug/L 1.0 ug/L OK TW4-l0 Methylene chloride 1 ug/L 1.0 ug/L OK TW4~10 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-10 Nitrogen 0.1 mg/L 0.1 mg/L OK TW4-l0 Chloride 1 mg/L 1 mg/L OK TW4-11 Chloroform 100 ug/L 1.0 ug/L OK TW4-11 Chloromethane 1 ug/L 1.0 ug/L OK TW4-11 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-11 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-11 Nitrogen 0.5 mg/L 0.1 mg/L OK TW4-11 Chloride 1 mg/L 1 mg/L OK TW4-12 Chloroform 1 ug/L 1.0 ug/L OK TW4-l2 Chloromethane 1 ug/L 1.0 ug/L OK TW4-12 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-12 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-l2 Nitrogen 1 mg/L 0.1 mg/L OK TW4-12 Chloride 1 mg/L 1 mg/L OK TW4-13 Chloroform 1 ug/L 1.0 ug/L OK TW4-13 Chloromethane 1 ug/L 1.0 ug/L OK TW4-13 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-13 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-13 Nitrogen 0.5 mg/L 0.1 mg/L OK TW4-13 Chloride 1 mg/L 1 mg/L OK TW4-14 Chloroform 1 ug/L 1.0 ug/L OK TW4-l4 Chloromethane 1 ug/L 1.0 ug/L OK TW4-14 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-l4 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-14 Nitrogen 0.1 mg/L 0.1 mg/L OK TW4-14 Chloride 1 mg/L 1 mg/L OK MW-26 Chloroform 100 ug/L 1.0 ug/L OK MW-26 Chloromethane 1 ug/L 1.0 ug/L OK MW-26 Methylene chloride 1 ug/L 1.0 ug/L OK MW-26 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK MW-26 Nitrogen 0.1 mg/L 0.1 mg/L OK MW-26 Chloride 1 mg/L 1 mg/L OK 1-5 Reporting Limit Evaluation Rqd' Lab Reporting Reporting Qualifier Location Constituent Limit Limit Check TW4-16 Chloroform 1 ug/L 1.0 ug/L OK TW4-16 Chloromethane 1 ug/L 1.0 ug/L OK TW4-16 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-16 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-16 Nitrogen 0.1 mg/L 0.1 mg/L OK TW4-16 Chloride 1 mg/L 1 mg/L OK MW-32 Chloroform 1 ug/L 1.0 ug/L OK MW-32 Chloromethane 1 ug/L 1.0 ug/L OK MW-32 Methylene chloride 1 ug/L 1.0 ug/L OK MW-32 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK MW-32 Nitrogen 0.1 mg/L 0.1 mg/L OK MW-32 Chloride 1 mg/L 1 mg/L OK TW4-18 Chloroform 1 ug/L 1.0 ug/L OK TW4-18 Chloromethane l .ug/L 1.0 ug/L OK TW4-18 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-18 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-18 Nitrogen 0.5 mg/L 0.1 mg/L OK TW4-18 Chloride 1 mg/L 1 mg/L OK TW4-19 Chloroform 100 ug/L 1.0 ug/L OK TW4-19 Chloromethane 1 ug/L 1.0 ug/L OK TW4-19 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-19 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-19 Nitrogen 0.5 mg/L 0.1 mg/L OK TW4-19 Chloride 1 mg/L 1 mg/L OK TW4-20 Chloroform 1000 ug/L 1.0 ug/L OK TW4-20 Chloromethane 1 ug/L 1.0 ug/L OK TW4-20 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-20 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-20 Nitrogen 0.2 mg/L 0.1 mg/L OK TW4-20 Chloride 1 mg/L 1 mg/L OK TW4-21 Chloroform 100 ug/L 1.0 ug/L OK TW4-21 Chloromethane 1 ug/L 1.0 ug/L OK TW4-21 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-21 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-21 Nitrogen 1 mg/L 0.1 mg/L OK TW4-21 Chloride 1 mg/L 1 mg/L OK TW4-22 Chloroform 100 ug/L 1.0 ug/L OK TW4-22 Chloromethane 1 ug/L 1.0 ug/L OK TW4-22 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-22 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-22 Nitrogen 1 mg/L 0.1 mg/L OK TW4-22 Chloride 1 mg/L 1 mg/L OK TW4-23 Chloroform 1 ug/L 1.0 ug/L OK TW4-23 Chloromethane 1 ug/L 1.0 ug/L OK TW4-23 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-23 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-23 Nitrogen 0.1 mg/L 0.1 mg/L OK TW4-23 Chloride 1 mg/L 1 mg/L OK 1-5 Reporting Limit Evaluation _ Rqd' Lab Reporting Reporting Qualifier Location Constituent Limit Limit Check TW4-24 Chlorofonn 1 ug/L 1.0 ug/L OK TW4-24 Chloromethane 1 ug/L 1.0 ug/L OK TW4-24 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-24 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-24 Nitrogen 1 mg/L 0.1 mg/L OK TW4-24 Chloride 1 mg/L 1 mg/L OK TW4-25 Chlorofonn 1 ug/L 1.0 ug/L OK TW4-25 Chloromethane 1 ug/L 1.0 ug/L OK TW4-25 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-25 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-25 Nitrogen 1 mg/L 0.1 mg/L OK TW4-25 Chloride 1 mg/L 1 mg/L OK TW4-26 Chlorofonn 1 ug/L 1.0 ug/L OK TW4-26 Chloromethane 1 ug/L 1.0 ug/L OK TW4-26 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-26 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-26 Nitrogen 1 mg/L 0.1 mg/L OK TW4-26 Chloride 1 mg/L 1 mg/L OK TW4-60 Chlorofonn 1 ug/L 1.0 ug/L OK TW4-60 Chloromethane 1 ug/L 1.0 ug/L OK TW4-60 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-60 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-60 Nitrogen 0.1 mg/L 0.1 mg/L OK TW4-60 Chloride 1 mg/L 1 mg/L OK TW4-65 Chlorofonn 100 ug/L 1.0 ug/L OK TW4-65 Chloromethane 1 ug/L 1.0 ug/L OK TW4-65 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-65 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-65 Nitrogen 0.5 mg/L 0.1 mg/L OK TW4-65 Chloride 1 mg/L 1 mg/L OK TW4-70 Chlorofonn 1 ug/L 1.0 ug/L OK TW4-70 Chloromethane 1 ug/L 1.0 ug/L OK TW4-70 Methylene chloride 1 ug/L 1.0 ug/L OK TW4-70 Carbon Tetrachloride 1 ug/L 1.0 ug/L OK TW4-70 Nitrogen 0.1 mg/L 0.1 mg/L OK TW4-70 Chloride 1 mg/L 1 mg/L OK U = Analyte was not detected at the RL D = RL was increased due to sample matrix or required dilution due to the sample concentration. In all I-6 Trip Blank Evaluation Lab Report Constituent Result CI1110773 Carbon tetrachloride ND ug/L Chloroform ND ug/L Chloromethane ND ug/L Methylene chloride ND ug/L Cl1120053 Carbon tetrachloride ND ug/L Chloroform ND ug/L Chloromethane ND ug/L Methylene chloride ND ug/L C11120292 Carbon tetrachloride ND ug/L Chloroform ND ug/L Chloromethane ND ug/L Methylene chloride ND ug/L 1-7 QAlQC Evaluation for Sample Duplicates Constituent TW4-3 TW4-65 O/oRPD Chloride (mg/L) 23 23 0 Nitrate + Nitrite (as N) 4.4 4.4 0 Carbon Tetrachloride ND ND NC Chloroform ND ND NC Chloromethane ND ND NC Dichloromethane (Methylene Chloride) ND ND NC Constituent TW4-6 TW4-70 O/oRPD Chloride (mg/L) 36 33 8.70 Nitrate + Nitrite (as N) 0.8 0.8 0.00 Carbon Tetrachloride ND ND NC Chloroform 50 21 81.69 Chloromethane ND ND NC Dichloromethane (Methylene Chloride) ND ND NC 1-8 QC Control Limits for Analysis and Blanks Matrix Spike % Recovery Comparison MSD REC Lab Report Lab Sample ID Well Analyte MS%REC %REC Range , RPD CI1110773 Cllll0773-018 TW4-10 Chloromethane 140 168 70-130 18 CI1110773 CIIII0773-018 TW4-10 Carbon tetrachloride 118 137 70-130 15 Cllll0773 C11110773-018 TW4-10 Chloroform 113 131 70-130 10 C11110773 CI1110773-018 TW4-10 Methylene chloride 144 171 70-130 17 C11110773 C 1111 0773-026 TW4-20 Chloroform 143 131 70-130 6,6 C11120053 Cll120053-004 TW4-2 Carbon tetrachloride 132 122 70-130 7,5 C11120053 Cll120053-004 TW4-2 Chloroform 132 121 70-130 9.2 NA -Not a Denison sample Surrogate % Recovery Lab QAP Specified Required Lab Report Well/Sample Analyte Surrogate %REC REC Range Range CI1110773 TW4-03R Dichlorobenzene-d4 128 80-120 None C11110773 TW4-08R Dichlorobenzene-d4 135 80-120 None Cllll0773 TW4-03 Dichlorobenzene-d4 139 80-120 None CI1110773 TW4-12 Dichlorobenzene-d4 140 80-120 None CI1110773 TW4-13 Dichlorobenzene-d4 145 80-120 None C11110773 TW4-14 Dichlorobenzene-d4 140 80-120 None CII110773 TW4-23 Dichlorobenzene-d4 140 80-120 None CII110773 TW4-25 Dichlorobenzene-d4 142 80-120 None CII110773 TW4-10 Dichlorobenzene-d4 139 80-120 None C11110773 MB Dichlorobenzene-d4 135 80-120 None Cllll0773 MB Dichlorobenzene-d4 131 80-120 None 1-9 Rinsate Evaluation All Rinsate results for the 4th quarter of 2011 from TW4-03R, TW4-08R, and TW4-07R were ND TabJ Kriged Current Quarter Chlorofonn Isoconcentration Map NS;;; not sampled; NO = not detected MW-4 d" h' @ 1600 perche m?nltonng well sowing concentration In ugfL 7W4-1 o 1300 temp~rary perched :no~itoring well showing concentration In ug/L TWN-1 ~NS PIEZ-1 e NS TW4-27 ~NS temporary perched nitrate monitoring well (not sampled) perched piezometer (not sampled) temporary perched monitoring well installed October, 2011 (not sampled) ISlYDRO GEO CHEM, INC. ~RJGE[) 4th QUART[ER~ 20)11 CHLOROFORM {ln9J/l) WI}-UTE MESA S~TE APPROVED DATE REFERENCE FIGURE H:f718000ffeb12/UchI1211 .srf J -1 TabK Analyte Concentrations Over Time : ; CjlrbQil . Chloroform . Chloromethane. Methylene -.. .Nih-ate .Chloride . MW'-4 Tetrachloride .(ug/l) . (u2/l) (ug/l) . Chlor.Ide (ug/l) (mg/l)-(mg/l) .: ' 28-Sep-99 6200 28-Sep-99 5820 28-Sep-99 6020 15-Mar-00 5520 15-Mar-00 5430 2-Sep-00 5420 9.63 30-Nov-00 6470 9.37 29-Mar-Ol 4360 8.77 22-Jun-Ol 6300 9.02 20-Sep-Ol 5300 9.45 8-Nov-Ol 5200 8 26-Mar-02 4700 8.19 22-May-02 4300 8.21 12-Sep-02 6000 8.45 24-Nov-02 2500 8.1 28-Mar-03 2000 8.3 30-Apr-03 3300 NA 30-May-03 3400 8.2 23-Jun-03 4300 8.2 30-JuI-03 3600 8.1 29-Aug-03 4100 8.4 12-Sep-03 3500 8.5 15-0ct-03 3800 8.1 8-Nov-03 3800 8 29-Mar-04 NA NA 22-Jun-04 NA NA 17-Sep-04 3300 6.71 17-Nov-04 4300 7.5 16-Mar-05 2900 6.3 25-May-05 3170 NA NA NA 7.1 NA 31-Aug-05 3500 <10 <10 <10 7.0 NA I-Dec-05 3000 <50 <50 <50 7.0 NA 9-Mar-06 3100 <50 <50 50 6 49 14-Jun-06 3000 <50 <50 50 6 49 20-JuI-06 2820 <50 <50 <50 1.2 48 9-Nov-06 2830 2.1 1.4 <1 6.4 50 28-Feb-07 2300 1.6 <1 <1 6.3 47 27-Jun-07 2000 1.8 <1 <1 7 45 15-Aug-07 2600 1.9 <1 <1 6.2 47 10-0ct-07 2300 1.7 <1 <1 6.2 45 26-Mar-08 2400 1.7 <1 <1 5.8 42 25-Jun-08 2500 1.6 <1 <1 6.09 42 10-Sep-08 1800 1.8 <1 <1 6.36 35 15-0ct-08 2100 1.7 <1 <1 5.86 45 4-Mar-09 2200 1.5 <1 <1 5.7 37 . . Chloroform Carbon Chloromethane ' ' . MW-4 Tetrachloride Methylen~ ~ -Nitrate Chloride . (ug/I) (ug/l) (ug/I) Chloride (ug/l) . (mgLl) . (mg/I) ,: . .,.' . 23-Jun-09 1800 1.3 <1 <1 5.2 34 14-Sep-09 2000 1.4 <1 <1 5.3 43 14-Dec-09 1800 1.6 ND ND 5.8 44 17-Feb-10 1600 1.2 ND ND 4 45 14-Jun-10 2100 1.2 ND ND 5.1 41 16-Aug-10 1900 1.5 ND ND 4.8 38 1l-Oct-10 1500 1.4 ND ND 4.9 41 23-Feb-ll 1700 1.5 ND ND 4.6 40 1-Jun-11 1700 1.4 ND ND 4.9 35 17-Aug-11 1700 1.1 ND ND 4.9 41 16-Nov-11 1600 1.3 ND ND 5.1 40 .', , Chloroform Carbon Chloromethane . Methylene . Nitrate ChlQride TW4-1 (ug/I) Tetrachloride (ug/l) . . Chioride (fig/I) . (mg/I) (ug/l) . (ug/I). , 28-Jun-99 1700 7.2 10-Nov-99 5.8 15-Mar-00 1100 10-Apr-00 1490 6-Jun-00 1530 2-Sep-00 2320 5.58 30-Nov-00 3440 7.79 29-Mar-01 2340 7.15 22-Jun-01 6000 8.81 20-Sep-01 12.8 8-Nov-01 3200 12.4 26-Mar-02 3200 13.1 22-May-02 2800 12.7 12-Sep-02 3300 12.8 24-Nov-02 3500 13.6 28-Mar-03 3000 12.4 23-Jun-03 3600 12.5 12-Sep-03 2700 12.5 8-Nov-03 3400 11.8 29-Mar-04 3200 11 22-Jun-04 3100 8.78 17-Sep-04 2800 10.8 17-Nov-04 3000 11.1 16-Mar-05 2700 9.1 25-May-05 3080 NA NA NA 10.6 NA 31-Aug-05 2900 <10 <10 <10 9.8 NA 1-Dee-05 2400 <50 <50 <50 9.7 NA 9-Mar-06 2700 <50 <50 <50 9.4 49 14-Jun-06 2200 <50 <50 <50 9.8 48 20-Jul-06 2840 <50 <50 <50 9.7 51 8-Nov-06 2260 1.4 <1 <1 9.4 47 28-Feb~07 1900 1.2 <1 <1 8.9 47 27-Jun-07 1900 1.4 <1 <1 9 45 15-Aug-07 2300 1.3 <1 <1 8.4 43 10-0et-07 2000 1.3 <1 <1 7.8 43 26-Mar-08 2000 1.3 <1 <1 7.6 39 25-Jun-08 1900 1.1 <1 <1 8.68 39 10-Sep-08 1700 1.3 <1 <1 8.15 35 15-0et-08 1700 1.3 <1 <1 9.3 41 Chloroform Carbon Chloromethane Methylene Nitrate Chloride TW4-1 .. ", Chloride . (ug/l). Tetrachloride (ug/I) . (Dig/I) '(mg/l) (ug/I). .' (ug/I) ... II-Mar-09 1700 1.1 <1 <1 7.5 37 24-Jun-09 1500 1 <1 <1 6.9 37 15-Sep-09 1700 <1 <1 <1 7.3 36 29-Dec-09 1400 <1 <1 <1 6.8 41 3-Mar-l0 1300 <1 <1 <1 7.1 35 15-Jun-l0 1600 1.2 <1 <1 6.8 40 24-Aug-l0 1500 <1 <1 <1 6.8 35 14-0ct-l0 1500 <1 <1 <1 6.6 40 24-Feb-ll 1300 ND ND ND 6.6 41 I-Jun-ll 1200 ND ND ND 7 35 18-Aug-ll 1300 ND ND ND 6.8 36 29-Nov-ll 1300 ND ND ND 6.6 37 Chloroform . Carbon Chloromethane Methylene Nitrate Chloride TW4-2 -. -. Tetrachloride Chloride (mg/l) (mg/l) . (ug/l) (iIg/I) (ug/l) (ug/l).· 10-Nov-99 2510 2-Sep-00 5220 28-Nov-00 4220 10.7 29-Mar-Ol 3890 10.2 22-Jun-Ol 5500 9.67 20-Sep-Ol 4900 11.4 8-Nov-Ol 5300 10.1 26-Mar-02 5100 9.98 23-May-02 4700 9.78 12-Sep-02 6000 9.44 24-Nov-02 5400 10.4 28-Mar-03 4700 9.5 23-Jun-03 5100 9.6 12-Sep-03 3200 8.6 8-Nov-03 4700 9.7 29-Mar-04 4200 9.14 22-Jun-04 4300 8.22 17-Sep-04 4100 8.4 17-Nov-04 4500 8.6 16-Mar-05 3700 7.7 25-May-05 3750 8.6 31-Aug-05 3900 <10 <10 <10 8 NA I-Dee-05 3500 <50 <50 <50 7.8 NA 9-Mar-06 3800 <50 <50 <50 7.5 56 14-Jun-06 3200 <50 <50 <50 7.1 56 20-Jul-06 4120 <50 <50 <50 7.4 54 8-Nov-06 3420 2.3 <1 <1 7.6 55 28-Feb-07 2900 1.8 <1 <1 7.3 54 27-Jun-07 3000 2.5 <1 <1 7.8 50 15-Aug-07 340 2.2 <1 <1 7.3 49 10-0et-07 3200 2.1 <1 <1 6.9 51 26-Mar-08 3300 2.3 <1 <1 6.9 48 25-Jun-08 3100 2.2 <1 <1 7.44 46 10-Sep-08 2800 2.4 <1 <1 7.1 42 15-0et-08 3200 2.4 <2 <2 7.99 47 II-Mar-09 3100 2.2 <1 <1 6.5 46 24-Jun-09 2800 2 <1 <1 6.4 44 15-Sep-09 3000 2 <1 <1 6.6 43 29-Dee-09 1600 2 <1 <1 6.4 46 ': .:' Methylene ' ", Chloroform. .Car~on ." Chloromethane , Nitrate C,bloride : . 1W4-2 . (ug/l) Tetra.chlorid:e'" , (ug/I) . Chloride (mg/l) . (mg/l) (ug/l) , . (ug/l) 3-Mar-10 2600 2 <1 <1 6.8 42 15-Jun-10 3300 2.6 <1 <1 6.7 43 16-Aug-10 3300 2.5 <1 <1 6.6 43 14-0ct-10 3000 2.1 <1 <1 6.5 41 24-Feb-11 3100 2.4 ND ND 7 46 2-Jun-11 3000 2.2 ND ND 6.8 42 17-Aug-11 2400 1.6 ND ND 6 48 29-Nov-11 3900 2.8 ND ND 7 49 . ,. ".' Carbon Methylene Chloroform . Chloromethane .. Nitrate · . Chloride TW4-3 . Tetrachloride ' Chloride (ug/l) (ug/l) . (ug/l) (u2/1). . (mg/l) . (mg/l) " 28-Jun-99 3S00 7.6 29-Nov-99 702 IS-Mar-OO 834 2-Sep-00 836 1.S6 29-Nov-00 836 1.97 27-Mar-Ol 347 1.8S 21-Jun-Ol 390 2.61 20-Sep-Ol 300 3.06 7-Nov-Ol 170 3.6 26-Mar-02 11 3.87 21-May-02 204 4.34 12-Sep-02 203 4.32 24-Nov-02 102 4.9 28-Mar-03 0 4.6 23-Jun-03 0 4.8 12-Sep-03 0 4.3 8-Nov-03 0 4.8 29-Mar-04 0 4.48 22-Jun-04 0 3.68 17-Sep-04 0 3.88 17-Nov-04 0 4.1 16-Mar-OS 0 3.S 2S-May-OS <1 NA NA NA 3.7 NA 31-Aug-OS <1 <1 6.4 <1 3.S NA I-Dee-OS <1 <1 2.3 <1 3.3 NA 9-Mar-06 <1 <1 2.2 <1 3.3 26 14-Jun-06 <1 <1 <1 <1 3.2 26 20-Jul-06 <1 <1 1.6 <1 2.9 26 8-Nov-06 <1 <1 <1 <1 1.S 23 28-Feb-07 <1 <1 <1 <1 3.1 22 27-Jun-07 <1 <1 <1 <1 3.3 23 IS-Aug-07 <1 <1 <1 <1 3.1 24 10-0et-07 <1 <1 <1 <1 2.8 27 26-Mar-08 <1 <1 <1 <1 2.8 21 2S-Jun-08 <1 <1 <1 <1 2.8S 19 10-Sep-08 <1 <1 <1 <1 2.66 19 IS-0et-08 <1 <1 <1 <1 2.63 22 4-Mar-09 <1 <1 <1 <1 2.S 21 24-Jun-09 <1 <1 <1 <1 2.9 20 Chloroform . Carbon _ Chloromethane Methylene Nitrate . Chloride I· TW4~3 "". Tetrachloride -. Chloride . (rug/l) . (ug/l) (ug/l) (ug/l) (ug/l) (mg/l) . , , I5-Sep-09 <1 <1 <1 <1 2.8 21 I6-Dec-09 <1 <1 <1 <1 2.5 22 23-Feb-IO <1 <1 <1 <1 2.8 23 8-Jun-IO <1 <1 <1 <1 3 24 IO-Aug-IO <1 <1 <1 <1 3.1 22 5-0ct-IO <1 <1 <1 <1 3.3 26 I5-Feb-II ND ND ND ND 3.5 23 25-May-II ND ND ND ND 3.7 23 I6-Aug-II ND ND ND ND 4 23 I5-Nov-II ND ND ND ND 4.4 23 Chloroform Carbon Chlorometh-ane ,-Me(hylene ' Nitrate Chloride ' TW4~4 (ug/l) -Tetrachloride (ug/l) Chloride , (mg/I) (mg/l) - -, : (u2/1) .. (u'g/l) 6-Jun-00 0 2-Sep-00 0 28-Nov-00 3.9 28-Mar-Ol 2260 1.02 20-Jun-Ol 3100 14.5 20-Sep-Ol 3200 14 8-Nov-Ol 2900 14.8 26-Mar-02 3400 15 22-May-02 3200 13.2 12-Sep-02 4000 13.4 24-Nov-02 3800 12.6 28-Mar-03 3300 13.4 23-Jun-03 3600 12.8 12-Sep-03 2900 12.3 8-Nov-03 3500 12.3 29-Mar-04 3200 12.2 22-Jun-04 3500 12.1 17-Sep-04 3100 11.1 17-Nov-04 3600 10.8 16-Mar-05 3100 11.6 25-May-05 2400 NA NA NA 11.3 NA 31-Aug-05 3200 <10 <10 <10 9.9 NA I-Dee-05 2800 <50 <50 <50 10.2 NA 9-Mar-06 2900 <50 <50 <50 9.5 51 14-Jun-06 2600 <50 <50 <50 8.6 48 20-Jul-06 2850 <50 <50 <50 9.7 50 8-Nov-06 2670 1.7 <1 <1 10.1 49 28-Feb-07 2200 1.5 <1 <1 9 49 27-Jun-07 2400 1.7 <1 <1 9.4 47 15-Aug-07 2700 1.5 <1 <1 9.5 45 10-0et-07 2500 1.5 <1 <1 9.5 47 26-Mar-08 2800 1.6 <1 <1 9.2 43 25-Jun-08 2500 1.5 <1 <1 10.8 42 10-Sep-08 2200 1.4 <1 <1 8.83 39 15-0et-08 2500 2 <2 <2 10.1 44 4-Mar-09 2200 1.2 <1 <1 10.2 37 24-Jun-09 1800 1.2 <1 <1 8.2 34 15-Sep-09 2000 1.1 <1 <1 8.4 39 29-Dee-09 950 1.1 <1 <1 7.6 41 ',i,' Chloroform " Carbon Clilorometh'ane Methylene . Nitrate " 'Chloride , TW4-4 (ug/I) Tetrachloride ' (ug/l) Chloride '(mg/I) , (lng/I) , (ug/I) , (uJ!/l) 17-Feb-l0 1700 1 <1 <1 6.6 48 1 O-lun-I 0 2000 1.2 <1 <1 7.6 35 1 6-Aug-l 0 2100 1.3 <1 <1 7.3 36 11-0ct-l0 1700 1.3 <1 <1 7.1 38 23-Feb-Il 1800 1.4 ND ND 7 41 l-lun-l1 1700 1.2 ND ND 7 35 17-Aug-Il 1500 ND ND ND 6.6 40 16-Nov-ll 1500 1 ND ND 7 39 ... ' Carbon Methylene Chloroform Chloromethane· . "Nitrate ; Chloride TW4~5 0 (ug/I) Tetrachloride' (rig/I) . Chloride . (mg/I) (mg/I) . (ltg/I) . (ug/l) . 20-Dee-99 29.5 15-Mar-00 49.0 2-Sep-00 124 29-Nov-00 255 28-Mar-Ol 236 20-Jun-Ol 240 20-Sep-Ol 240 7-Nov-Ol 260 26-Mar-02 260 22-May-02 300 12-Sep-02 330 24-Nov-02 260 28-Mar-03 240 23-Jun-03 290 12-Sep-03 200 8-Nov-03 240 29-Mar-04 210 22-Jun-04 200 17-Sep-04 150 17-Nov-04 180 16-Mar-05 120 25-May-05 113 NA NA NA 3.7 NA 31-Aug-05 82.0 <2.5 5.8 <2.5 6 NA I-Dee-05 63.0 <2.5 2.5 <2.5 6 NA 9-Mar-06 66.0 <2.5 3.1 <2.5 6 52 14-Jun-06 51.0 <1 <2.5 <2.5 5.9 51 20-Jul-06 53.7 <1 <1 <1 6.7 54 8-Nov-06 47.1 <1 <1 <1 2.9 55 28-Feb-07 33.0 <1 <1 <1 7.8 57 27-Jun-07 26.0 <1 <1 <1 7 45 15-Aug-07 9.2 <1 <1 <1 7.7 38 10-0et-07 9.4 <1 <1 <1 8.2 39 26-Mar-08 11.0 <1 <1 <1 7.4 36 25-Jun-08 9.3 <1 <1 <1 8.7 37 10-Sep-08 11.0 <1 <1 <1 7.91 34 15-0et-08 10.0 <1 <1 <1 9.3 37 4-Mar-09 12.0 <1 <1 <1 7.9 34 24-Jun-09 13.0 <1 <1 <1 7.5 37 15-Sep-09 12.0 <1 <1 <1 8.3 48 Carbon Methylene ,,-- Chloroform, Chloromethane Nitrate Chloride. TW4-5 -Tetrachloride, Chloride-_ • I . • (iIg/I) _ -(ug/l) (tig/l) --(ug/l) (mg/I) _. (mg/I) .-,0 ., . - 22-Dec-09 8.5 <1 <1 <1 7.5 41 25-Feb-10 13.0 <1 <1 <1 6.8 43 9-Jun-10 12.0 <1 <1 <1 7.1 28 11-Aug-10 12.0 <1 <1 <1 7 38 13-0ct-10 11.0 <1 <1 <1 7.2 41 22-Feb-11 10.0 ND ND ND 7 34 26-May-11 9.0 ND ND ND 7.2 35 17-Aug-11 10.0 ND ND ND 7.5 37 7-Dec-11 7.9 ND ND ND 6 30 Carbon , ' . Methylene Chloroform· Chloromethane ' . Nitrate Chloride TW4-6 (ug/l) Tetrachloride (ug/l) 'Chloride (mg/l) (mg/l) (ug/l) , (~~/l) .",' 6-Jun-00 0 2-Sep-00 0 28-Nov-00 0 ND 26-Mar-01 0 0.13 20-Jun-01 0 ND 20-Sep-01 4 ND 7-Nov-01 1 ND 26-Mar-02 0 ND 21-May-02 0 ND 12-Sep-02 0 ND 24-Nov-02 0 ND 28-Mar-03 0 0.1 23-Jun-03 0 ND 12-Sep-03 0 ND 8-Nov-03 0 ND 29-Mar-04 0 ND 22-Jun-04 0 ND 17-Sep-04 0 ND 17-Nov-04 0 ND 16-Mar-05 0 0.2 25-May-05 2.5 NA NA NA 0.4 NA 31-Aug-05 10.0 <1 2.8 <1 0.8 NA 1-Dec-05 17.0 <1 1.3 <1 0.9 NA 9-Mar-06 31.0 <1 <1 <1 1.2 31 14-Jun-06 19.0 <1 <1 <1 1 30 20-Jul-06 11.0 <1 <1 <1 0.6 37 8-Nov-06 42.8 <1 <1 <1 1.4 65 28-Feb-07 46.0 <1 <1 <1 1.5 32 27-Jun-07 11.0 <1 <1 <1 0.6 38 15-Aug-07 18.0 <1 <1 <1 0.7 36 10-0ct-07 18.0 <1 <1 <1 0.8 38 26-Mar-08 52.0 <1 <1 <1 1.1 33 25-Jun-08 24.0 <1 <1 <1 0.9 35 10-Sep-08 39.0 <1 <1 <1 1.14 35 15-0ct-08 37.0 <1 <1 <1 1.01 33 11-Mar-09 81.0 <1 <1 <1 2.2 35 24-Jun-09 120 <1 <1 <1, 2.7 37 15-Sep-09 280 <1 <1 <1 5.0 37 22-Dec-09 250 <1 <1 <1 6.1 41 25-Feb-10 1000 <1 <1 <1 1.6 45 10-Jun-10 590 <1 <1 <1 2.5 33 12-Aug-10 630 <1 <1 <1 3.9 31 13-0ct-10 420 <1 <1 <1 4.3 41 Carbon Methylene . '. TW4-6· Chloroform Tetnichlo'ride Chloromethane. Chloride Nitrate . Chloride (ug/l) (u'g/l) (ug/l) " (ugll) (mg/l) (mg/l) 23-Feb-ll 47 NU NU NU U:I 4U 26-May-ll 10 ND ND ND 0.3 42 17-Aug-ll 16 ND ND ND 0.3 39 7-Dec-11 21 ND ND ND 0.8 36 Chloroform Carbon Chloromethane Methylene' Nitrate Chloride .. TW4~7 Tetrachloride Chloride (ug/I) (ug/I) (ug/I) (ug/l)' (mg/I) , . (mg/I) .: . ., .. " 29-Nov-99 256 15-Mar-00 616 2-Sep-00 698 29-Nov-00 684 1.99 28-Mar-01 747 2.46 20-Jun-01 1100 2.65 20-Sep-01 1200 3.38 8-Nov-Ol 1100 2.5 26-Mar-02 1500 3.76 23-May-02 1600 3.89 12-Sep-02 1500 3.18 24-Nov-02 2300 4.6 28-Mar-03 1800 4.8 23-Jun-03 5200 7.6 12-Sep-03 3600 7.6 8-Nov-03 4500 7.1 29-Mar-04 2500 4.63 22-Jun-04 2900 4.83 17-Sep-04 3100 5.59 17-Nov-04 3800 6 16-Mar-05 3100 5.2 25-May-05 2700 NA NA NA 5.4 NA 31-Aug-05 3100 <10 <10 <10 5.2 NA I-Dec-05 2500 <50 <50 <50 5.3 NA 9-Mar-06 1900 <50 <50 <50 1 48 14-Jun-06 2200 <50 <50 <50 4.5 47 20-Jul-06 2140 <50 <50 <50 4.7 51 8-Nov-06 2160 1.5 <1 <1 4.6 49 28-Feb-07 1800 1.1 <1 <1 5 47 27-Jun-07 2600 1.5 <1 <1 5.1 45 14-Aug-07 2300 1.4 <1 <1 4.7 44 10-0ct-07 1900 1.2 <1 <1 4.7 45 26-Mar-08 2200 1.3 <1 <1 4.2 43 25-Jun-08 1800 1.3 <1 <1 4.8 43 10-Sep-08 1600 1.4 <1 <1 4.16 35 15-0ct-08 1900 <2 <2 <2 4.01 40 11-Mar-09 1800 1.2 <1 <1 3.7 35 24-Jun-09 1400 <1 <1 <1 3.8 37 15-Sep-09 1500 1.0 <1 <1 4.1 37 Chloroform Carbon Chloromethane Methylene Nitrate Chloride tW4~7 Tetrachloride -Chloride - -" (ug/l) (rig/l) (ug/l) (ug/l)-(mg/l) -(mg!l) ,-- 29-Dec-09 1300 <1 <1 <1 4.2 37 3-Mar-l0 1200 <1 <1 <1 3.8 36 10-lun-l0 1100 <1 <1 <1 3.9 31 18-Aug-l0 1500 1.1 <1 <1 3.9 36 13-0ct-l0 1100 1.1 <1 <1 4 38 23-Feb-ll 1300 ND ND ND 3.6 45 l-lun-ll 1200 ND ND ND 4 35 18-Aug-ll 1200 ND ND ND 4.1 37 29-Nov-ll 1000 ND ND ND 3.8 37 . ,c' Carbon Methylene TW4-8 Chloroform Tetrachloride ' Chlorometh3:ne . Chloride Nitrate Chloride (ug/l) . (ug/l) . ... (ug/l) (ug/l) (mg/l) (mg/l) . 29-Nov-99 0 IS-Mar-OO 21.8 2-Sep-00 102 29-Nov-00 107 ND 26-Mar-Ol 116 ND 20-Jun-Ol 180 ND 20-Sep-Ol 180 0.3S 7-Nov-Ol 180 ND 26-Mar-02 190 0.62 22-May-02 210 0.77 12-Sep-02 300 ND 24-Nov-02 4S0 ND 28-Mar-03 320 0.8 23-Jun-03 420 ND 12-Sep-03 66.0 ND 8-Nov-03 21.0 0.1 29-Mar-04 24.0 0.6S 22-Jun-04 110 0.S2 17-Sep-04 120 ND 17-Nov-04 120 ND 16-Mar-OS 10.0 ND 2S-May-OS <1 NA NA NA 0.2 NA 31-Aug-OS 1.1 <1 1.7 <1 <0.1 NA 30-Nov-OS <1 <1 <1 <1 <0.1 NA 9-Mar-06 1.3 <1 2.1 <1 0.3 39 14-Jun-06 1.0 <1 1.8 <1 <0.1 37 20-Jul-06 <1 <1 <1 <1 0.1 39 8-Nov-06 <1 <1 <1 <1 <0.1 40 28-Feb-07 2.S <1 <1 <1 0.7 39 27-Jun-07 2.S <1 <1 <1 0.2 42 IS-Aug-07 1.S <1 <1 <1 <0.1 42 10-0ct-07 3.S <1 <1 <1 O.S 43 26-Mar-08 <1 <1 <1 <1 0.1 46 2S-Jun-08 <1 <1 <1 <1 <O.OS 4S 10-Sep-08 <1 <1 <1 <1 <O.OS 39 IS-0ct-08 <1 <1 <1 <1 <O.OS 44 4-Mar-09 <1 <1 <1 <1 <0.1 42 24-Jun-09 <1 <1 <1 <1 <0.1 44 IS-Sep-09 <1 <1 <1 <1 <1 44 Carbon ,", Methylene ., TW4~8 Chloroform Tetrachloride " Chlor~methane .. Chloride " Nitrate , Chloride (ug/I) " (ug/l) " (ug/I) (u"g/l) " (fig/I) (mg/I) " . 17-Dec-09 <1 <1 <1 <1 <0.1 51 24-Feb-10 <1 <1 <1 <1 <0.1 57 9-Jun-10 <1 <1 <1 <1 <0.1 42 11-Aug-10 <1 <1 <1 <1 <0.1 45 5-0ct-10 <1 <1 <1 <1 <0.1 46 16-Feb-11 ND ND ND ND ND 52 25-May-11 ND ND ND ND 0.1 45 16-Aug-11 ND ND ND ND 0.1 46 7-Dec-11 ND ND ND ND 0.2 45 , .Carbo~ Methylene . Chloroform Chlorometh,ane Nitrate· .Chloride TW4~9 • Tetrachloride· Chloride ' (ug/I) (rig/I) (ug/I) . (ug/l) (mg/I) (mg/I) 20-Dee-99 4.2 I5-Mar-00 1.9 2-Sep-00 14.2 29-Nov-00 39.4 ND 27-Mar-OI 43.6 ND 20-Jun-OI 59.0 0.15 20-Sep-OI 19.0 0.4 7-Nov-OI 49.0 0.1 26-Mar-02 41.0 0.5 22-May-02 38.0 0.65 I2-Sep-02 49.0 0.2 24-Nov-02 51.0 0.6 28-Mar-03 34.0 0.6 23-Jun-03 33.0 0.8 I2-Sep-03 32.0 1.1 8-Nov-03 46.0 1.1 29-Mar-04 48.0 0.82 22-Jun-04 48.0 0.75 I7-Sep-04 39.0 0.81 I7-Nov-04 26.0 1.2 I6-Mar-05 3.8 1.3 25-May-05 1.2 NA NA NA 1.3 NA 3I-Aug-05 <1 <1 2.9 <1 1.3 NA I-Dee-05 <1 <1 <1 <1 1.3 NA 9-Mar-06 <1 <1 2.6 <1 1.5 38 I4-Jun-06 <1 <1 2.7 <1 1.5 39 20-Jul-06 <1 <1 <1 <1 0.9 41 8-Nov-06 <1 <1 <1 <1 0.7 44 28-Feb-07 <1 <1 <1 <1 0.6 44 27-Jun-07 21 <1 <1 <1 1.3 42 I5-Aug-07 9.5 <1 <1 <1 1.8 38 IO-Oet-07 8.7 <1 <1 <1 2 40 26-Mar-08 1.3 <1 <1 <1 2.1 35 25-Jun-08 1.0 <1 <1 <1 2.3 35 IO-Sep-08 <1 <1 <1 <1 2.79 28 I5-0et-08 <1 <1 <1 <1 1.99 58 4-Mar-09 <1 <1 <1 <1 2.5 30 24-Jun-09 <1 <1 <1 <1 2.3 30 I5-Sep-09 <1 <1 <1 <1 2.5 30 ,-Carbon Methylene TW4-9 Chloroform . Tetrachloride Chloromethane .' Chloride Nitrate Chloride . (ug/I) (ug/I) . (ug/I) (ug/I) . (mg/I) , (nig/I) 17-Dec-09 <1 <1 <1 <1 1.7 37 23-Feb-10 <1 <1 <1 <1 1.7 47 9-Jun-10 <1 <1 <1 <1 1.5 33 11-Aug-10 <1 <1 <1 <1 1.2 40 6-0ct-10 <1 <1 <1 <1 1.8 34 17-Feb-11 ND ND ND ND 1.3 41 25-May-11 ND ND ND ND 3.4 38 16-Aug-11 ND ND ND ND 4 21 7-Dec-11 ND ND ND ND 2.3 38 , Carbon " , Methylene Chloroform Chloromethane Nitrate " Cllloride , TW4-10 , Tetrachloride, , Chloride , , ,(ug/D (ug/I) : ' (llg/l) , (ug/l} , ' (mg/I) , (rug/I) 21-Jan-02 14 26-Mar-02 16 0.14 21-May-02 17 0.11 12-Sep-02 6 ND 24-Nov-02 14 ND 28-Mar-03 29 0.2 23-Jun-03 110 0.4 12-Sep-03 74 0.4 8-Nov-03 75 0.3 29-Mar-04 22 0.1 22-Jun-04 32 ND 17-Sep-04 63 0.46 17-Nov-04 120 0.4 16-Mar-05 140 1.6 25-May-05 62.4 NA NA NA 0.8 NA 31-Aug-05 110 <2.5 6.2 <2.5 1.1 NA 1-Dec-05 300 <2.5 <2.5 <2.5 3.3 NA 9-Mar-06 190 <5 <50 <50 2.4 50 14-Jun-06 300 <5 <50 <50 3.5 54 20-Jul-06 504 <5 <50 <50 6.8 61 8-Nov-06 452 <1 1.6 1 5.7 58 28-Feb-07 500 <1 <1 1 7.6 62 27-Jun-07 350 <1 <1 1 5.1 54 15-Aug-07 660 <1 <1 1 7.3 59 10-0ct-07 470 <1 <1 1 6.7 59 26-Mar-08 620 <1 <1 1 7.3 55 25-Jun-08 720 <1 <1 1 9.91 58 10-Sep-08 680 <1 <1 1 9.23 51 15-0ct-08 1200 <2 <2 2 10.5 61 11-Mar-09 1100 <1 <1 1 11.6 64 24-Jun-09 1200 <1 <1 1 9.8 62 15-Sep-09 910 <1 <1 1 8.1 51 22-Dec-09 300 <1 <1 <1 3.5 51 3-Mar-10 460 <1 <1 <1 5 49 1 0-Jun-1 0 220 <1 <1 <1 1.6 42 12-Aug-10 100 <1 <1 <1 0.8 38 13-0ct-10 1100 <1 <1 <1 11 52 23-Feb-11 620 ND ND ND 9 62 1-Jun-11 280 ND ND ND 3.3 42 17-Aug-11 180 ND ND ND 1.9 41 16-Nov-11 110 ND ND ND 1.1 45 ·1 .' , Carbon Chloroform, . .. . TW4-11 Tetrachloride :. Chloromethane· . Methylene . N.itrate Chloride " . (ug/l) . (ug~l) . Chloride (ug/l) (mg/l) (mg/I) , .. . (ug/l) " ,. " " 21-Jan-02 4700 26-Mar-02 4900 9.6 22-May-02 5200 9.07 12-Sep-02 6200 8.84 24-Nov-02 5800 9.7 28-Mar-03 5100 9.7 23-Jun-03 5700 9.4 12-Sep-03 4600 9.9 8-Nov-03 5200 9.3 29-Mar-04 5300 9.07 22-Jun-04 5700 8.74 17-Sep-04 4800 8.75 17-Nov-04 5800 9.7 16-Mar-05 4400 8.7 25-May-05 3590 NA NA NA 10.3 NA 31-Aug-05 4400 <10 <10 <10 9.4 NA I-Dec-05 4400 <100 <100 <100 9.4 NA 9-Mar-06 4400 <50 <50 <50 9.2 56 14-Jun-06 4300 <50 <50 <50 10 56 20-Jul-06 4080 <50 <50 <50 10 55 8-Nov-06 3660 1.7 2.7 1.3 10 55 28-Feb-07 3500 1.3 <1 1.6 10.1 54 27-Jun-07 3800 1.6 <1 1.1 10.6 53 15-Aug-07 4500 1.7 <1 1.1 10.2 53 10-0ct-07 4400 1.6 <1 1.2 9.8 53 26-Mar-08 340 <1 <1 <1 7.7 63 25-Jun-08 640 <1 <1 <1 7.28 46 10-Sep-08 900 <1 <1 <1 7.93 42 15-0ct-08 1000 <2 <2 <2 9.46 47 II-Mar-09 1100 <1 <1 <1 7.3 49 24-Jun-09 980 <1 <1 <1 6.8 44 15-Sep-09 1000 <1 <1 <1 7 49 29-Dec-09 860 <1 <1 <1 6.6 46 3-Mar-l0 820 <1 <1 <1 6.8 42 10-Jun-l0 820 <1 <1 <1 6.9 40 12-Aug-l0 800 <1 <1 <1 6.7 43 13-0ct-l0 720 <1 <1 <1 6.4 49 23-Feb-ll 1000 ND ND ND 6.5 46 I-Jun-ll 930 ND ND ND 7.3 49 17-Aug-11 820 ND ND ND 7.1 48 16-Nov-11 1500 ND ND ND 7.1 46 , Carbon , Methylene,' Chloroform Chloromethane Nitrate , Chloride TW4-12 Tetrachloride -'Chloride' _ (ug/l) (ug/l) (ug/l) , (ug/l) :' (mg/l) " _ {mg/l) , i· 12-Sep-02 2 2.54 24-Nov-02 0 2.2 28-Mar-03 0 1.9 23-Jun-03 0 1.8 12-Sep-03 0 1.8 9-Nov-03 0 1.6 29-Mar-04 0 1.58 22-Jun-04 0 1.4 17-Sep-04 0 1.24 17-Nov-04 0 1.5 16-Mar-05 0 1.4 25-May-05 <1 NA NA NA 1.6 NA 31-Aug-05 <1 <1 5.8 <1 1.5 NA I-Dec-05 <1 <1 1.9 <2 1.4 NA 9-Mar-06 <1 <1 2.6 <1 1.3 19 14-Jun-06 <1 <1 1.4 <1 1.4 16 20-Jul-06 <1 <1 <1 <1 1.4 16 8-Nov-06 <1 <1 <1 <1 1.4 16 28-Feb-07 <1 <1 <1 <1 1.5 16 27-Jun-07 <1 <1 <1 <1 1,5 18 15-Aug-07 <1 <1 <1 <1 1.4 29 10-0ct-07 <1 <1 <1 <1 1.4 16 26-Mar-08 <1 <1 <1 <1 1.6 16 25-Jun-08 <1 <1 <1 <1 2.69 19 10-Sep-08 <1 <1 <1 <1 2.65 18 15-0ct-08 <1 <1 <1 <1 2.47 22 4-Mar-09 <1 <1 <1 <1 2.4 23 24-Jun-09 <1 <1 <1 <1 3.8 22 15-Sep-09 <1 <1 <1 <1 5.1 22 16-Dec-09 <1 <1 <1 <1 3.6 23 23-Feb-l0 <1 <1 <1 <1 4 22 8-Jun-l0 <1 <1 <1 <1 11 29 1 O-Aug-l 0 <1 <1 <1 <1 9 35 5-0ct-l0 <1 <1 <1 <1 8 31 15-Feb-ll ND ND ND ND 6.5 31 25-May-ll ND ND ND ND 7 32 16-Aug-ll ND ND ND ND 6.8 31 15-Nov-ll ND ND ND ND 8 30 Carbon Chloroni Methylen' , , , TW4-13 Chloroform Tetrachlo ethane e Nitra'te Chloride , (ug/i) ride,' (ug/I) Chloride (mg/I) (mg/I) (ug/I) , (ug/l) 12-Sep-02 ND ND 24-Nov-02 ND ND 28-Mar-03 ND 0.2 23-Jun-03 ND 0.2 12-Sep-03 ND ND 9-Nov-03 ND 0.9 29-Mar-04 ND 0.12 22-Jun-04 ND 0.17 17-Sep-04 ND 4.43 17-Nov-04 ND 4.7 16-Mar-05 ND 4.2 25-May-05 <1 NA NA NA 4.3 NA 31-Aug-05 <1 <1 3.1 <1 4.6 NA I-Dec-05 <1 <1 <1 <1 4.3 NA 9-Mar-06 <1 <1 1.7 <1 4.2 67 14-Jun-06 <1 <1 1.4 <1 4.9 66 20-Jul-06 <1 <1 <1 <1 4.3 65 8-Nov-06 <1 <1 <1 <1 0.8 33 28-Feb-07 <1 <1 <1 <1 4 59 27-Jun-07 <1 <1 <1 <1 4.6 59 15-Aug-07 <1 <1 <1 <1 4.4 58 10-0ct-07 <1 <1 <1 <1 4.1 58 26-Mar-08 <1 <1 <1 <1 3.8 54 25-Jun-08 <1 <1 <1 <1 4.24 58 10-Sep-08 <1 <1 <1 <1 4.26 50 15-0ct-08 <1 <1 <1 <1 4.63 58 4-Mar-09 <1 <1 <1 <1 3.7 58 24-Jun-09 <1 <1 <1 <1 1.2 57 15-Sep-09 <1 <1 <1 <1 4.7 63 16-Dec-09 <1 <1 <1 <1 4.1 60 24-Feb-l0 <1 <1 <1 <1 4.3 53 8-Jun-l0 <1 <1 <1 <1 5.2 52 10-Aug-l0 <1 <1 <1 <1 5.6 55 5-0ct-l0 <1 <1 <1 <1 5.8 55 15-Feb-ll ND ND ND ND 5.5 60 25-May-ll ND ND ND ND 5.4 56 16-Aug-ll ND ND ND ND 5.2 60 15-Nov-ll ND ND ND ND 5.9 54 Chloroform Carbon Chloromethane Methylene , Nitrate , Chloride TW4-14 ' (ug/l) Tetrachloride (ug/l) ~ Chloride ,(mg/l) (mg/l) (ug/l) (ug/l) 8-Nov-06 <1 <1 <1 <1 2.4 37 28-Feb-07 <1 <1 <1 <1 2.3 38 27-Jun-07 <1 <1 <1 <1 1.4 38 15-Aug-07 <1 <1 <1 <1 1.1 36 10-0ct-07 <1 <1 <1 <1 0.8 36 26-Mar-08 <1 <1 <1 <1 0.04 57 25-Jun-08 <1 <1 <1 <1 1.56 35 10-Sep-08 <1 <1 <1 <1 1.34 34 15-0ct-08 <1 <1 <1 <1 0.76 40 4-Mar-09 <1 <1 <1 <1 1.6 35 24-Jun-09 <1 <1 <1 <1 1.4 36 15-Sep-09 <1 <1 <1 <1 1.5 38 16-Dec-09 <1 <1 <1 <1 1.4 34 3-Mar-l0 <1 <1 <1 <1 2.5 33 8-Jun-l0 <1 <1 <1 <1 2.9 49 1 O-Aug-l 0 <1 <1 <1 <1 2.8 35 6-0ct-l0 <1 <1 <1 <1 2.9 29 15-Feb-ll ND ND ND ND 1.8 25 16-Aug-ll ND ND ND ND 2.6 33 15-Nov-ll ND ND ND ND 1.7 15 -. Carbon . Methylene MW~26 .Chloroform Tetrachloride . Chloromethane Chloride . Nitrate Chloride· .. -.(ug/I) (ug/I) .. (ug/I) (ug/I) (mg/I) (fig/I) 12-Sep-02 3 ND 24-Nov-02 0 ND 28-Mar-03 0 0.1 23-Jun-03 7800 14.5 15-Aug-03 7400 16.8 12-Sep-03 2500 2.7 25-Sep-03 2600 2.5 29-0ct-03 3100 3.1 8-Nov-03 3000 2.8 29-Mar-04 NA NA 22-Jun-04 NA NA 17-Sep-04 1400 0.53 17-Nov-04 300 0.2 16-Mar-05 310 0.3 30-Mar-05 230 0.2 25-May-05 442 NA NA NA 0.2 NA 31-Aug-05 960 <5 5.4 <5 0.2 NA I-Dec-05 1000 <50 <50 <50 0.3 NA 9-Mar-06 1100 <50 <50 <50 0.2 52 14-Jun-06 830 <50 <50 <50 0.2 52 20-Jul-06 2170 <50 <50 <50 1.4 65 8-Nov-06 282 <1 <1 2.8 0.3 54 28-Feb-07 570 <1 <1 5.5 0.5 56 27-Jun-07 300 <1 <1 13 0.4 49 15-Aug-07 1400 <1 <1 36 1 57 10-0ct-07 2000 <1 <1 14 0.6 57 26-Mar-08 930 <1 <1 40 0.1 49 25-Jun-08 1300 <1 <1 53 0.56 57 10-Sep-08 630 <1 <1 24 0.24 44 15-0ct-08 1700 <1 <1 100 0.65 64 4-Mar-09 950 <1 <1 51 0.4 49 24-Jun-09 410 <1 <1 12 0.2 48 15-Sep-09 850 <1 <1 30 0.1 46 14-Dec-09 1100 <1 <1 40 2.3 60 17-Feb-l0 780 <1 <1 19 0.2 57 9-Jun-l0 1900 <1 <1 28 1.1 58 16-Aug-l0 2200 <1 <1 21 0.6 49 11-0ct-l0 970 <1 <1 6.5 0.7 65 23-Feb-ll 450 ND ND 3.6 0.5 57 31-May-ll 1800 ND ND 1.3 0.4 88 17-Aug-ll 720 ND ND 7.2 0.9 58 5-Dec-ll 1800 ND ND 2.9 2 69 Chloroform . Carbon Chloromethane Met~ylene Nitrate Chloride . TW4-16 (ug/l). Tetrachloride . . (ug/l) Chloride. (fig/I) (mg/I) -(ug/l) ,. , (ug/l) . 12-Sep-02 140 ND 24-Nov-02 200 ND 28-Mar-03 260 ND 23-Jun-03 370 ND 12-Sep-03 350 ND 8-Nov-03 400 ND 29-Mar-04 430 ND 22-Jun-04 530 ND 17-Sep-04 400 ND 17-Nov-04 350 ND 16-Mar-05 240 ND 25-May-05 212 NA NA NA <0.1 NA 31-Aug-05 85 <1 3.2 43 <0.1 NA I-Dec-05 14 <2.5 2.6 5.9 1.4 NA 9-Mar-06 39.0 <1 1.1 21 3 60 14-Jun-06 13.0 <1 2.4 8.9 1.9 55 20-Jul-06 5.2 <1 <1 2.7 2.7 60 8-Nov-06 13.6 <1 <1 9.2 5.6 62 28-Feb-07 8.7 <1 <1 6.5 12.3 79 27-Jun-07 2.6 <1 <1 1.8 9.9 75 15-Aug-07 7.1 <1 <1 5.1 5.4 66 10-0ct-07 1.4 <1 <1 <1 4.4 69 26-Mar-08 11.0 <1 <1 26 ND 52 25-Jun-08 <1 <1 <1 <1 1.46 58 10-Sep-08 10 <1 <1 14 10.5 71 15-0ct-08 3.9 <1 <1 6.6 9.82 89 4-Mar-09 <1 <1 <1 <1 9.6 78 24-Jun-09 <1 <1 <1 <1 8.9 76 15-Sep-09 <1 <1 <1 <1 8.8 79 17-Dec-09 <1 <1 <1 <1 5.2 76 24-Feb-l0 <1 <1 <1 <1 4.2 77 9-Jun-l0 2.1 <1 <1 <1 4.7 64 24-Aug-l0 4.3 <1 <1 <1 4.6 72 6-0ct-l0 3.0 <1 <1 <1 3.3 72 22-Feb-ll 15.0 ND ND ND 7 86 26-May-ll 16.0 ND ND ND 5 81 17-Aug-ll 9.2 ND ND ND 1.7 63 16-Nov-ll ND ND ND 1.4 0.4 38 Chloroform Carbon Chloromethane . Methylene . Nitrate ChlQride MW-32 Tetrachloride Chloride (ug/I) (ug/I) (ug/I) .. (ug/l) , (mg/I) . (mg/I) I2-Sep-02 1.6 ND 24-Nov-02 ND ND 28-Mar-03 ND ND 23-Jun-03 ND ND I2-Sep-03 ND ND 8-Nov-03 ND ND 29-Mar-04 ND ND 22-Jun-04 ND ND I7-Sep-04 ND ND I7-Nov-04 ND ND I6-Mar-OS ND ND 30-Mar-OS ND ND 2S-May-OS <1 NA NA NA <0.1 NA 3I-Aug-OS <1 <1 3.2 <1 <0.1 NA I-Dee-OS <1 <1 <1 <1 <0.1 NA 9-Mar-06 <1 <1 <1 <1 <0.1 32 I4-Jun-06 <1 <1 3.S <1 <0.1 30 20-Jul-06 <1 <1 1.8 <1 <0.1 32 8-Nov-06 <1 <1 1.S <1 <0.1 31 28-Feb-07 <1 <1 <1 <1 <0.1 32 27-Jun-07 <1 <1 <1 <1 <0.1 32 IS-Aug-07 <1 <1 <1 <1 <0.1 31 IO-Oet-07 <1 <1 <1 <1 <0.1 32 26-Mar-08 <1 <1 <1 <1 <0.1 31 2S-Jun-08 <1 <1 <1 <1 <O.OS 29 IO-Sep-08 <1 <1 <1 <1 <O.OS 30 IS-Oet-08 <1 <1 <1 <1 <O.OS 26 4-Mar-09 <1 <1 <1 <1 <0.1 30 24-Jun-09 <1 <1 <1 <1 <0.1 31 IS-Sep-09 <1 <1 <1 <1 <0.1 33 I6-Dee-09 <1 <1 <1 <1 <0.1 34 I7-Feb-IO <1 <1 <1 <1 <0.1 38 I4-Jun-IO <1 <1 <1 <1 <0.1 32 1 6-Aug-I 0 <1 <1 <1 <1 <0.1 28 6-0et-IO <1 <1 <1 <1 <0.1 24 23-Feb-II ND ND ND ND ND 40 2S-May-II ND ND ND ND ND 31 I6-Aug-II ND ND ND ND ND 33 6-Dee-II ND ND ND ND ND 32 .'" Carbon Methylene . Chloroform Chloromethane .Nitrate Chloride TW4-18 · (ug/l)' . Tetrachloride (ug/I) -Chloride (mg/l) (mg/l) . (ug/l) , (ug/l) . 12-Sep-02 440 1.49 24-Nov-02 240 13.3 28-Mar-03 160 13.1 23-Jun-03 110 19 12-Sep-03 68.0 19.9 9-Nov-03 84.0 20.7 29-Mar-04 90.0 14 22-Jun-04 82.0 12.2 17-Sep-04 38.0 14.5 17-Nov-04 51.0 17.3 16-Mar-05 38.0 14.1 25-May-05 29.8 NA NA NA 12.9 NA 31-Aug-05 39 <1 2.8 <1 13.3 NA I-Dec-05 14 <1 1.1 <1 7.3 NA 9-Mar-06 12.0 <1 1.1 <1 5.9 5.9 14-Jun-06 12.0 <1 1.6 <1 4.7 35 20-Jul-06 10.8 <1 2.7 <1 6.1 35 8-Nov-06 139 <1 <1 <1 8.7 34 28-Feb-07 9.2 <1 <1 <1 5.1 30 27-Jun-07 8.0 <1 <1 <1 4.9 28 15-Aug-07 8.9 <1 <1 <1 5 32 10-0ct-07 7.4 <1 <1 <1 4.4 27 26-Mar-08 6.4 <1 <1 <1 0.7 23 25-Jun-08 5.7 <1 <1 <1 4.55 23 10-Sep-08 8.0 <1 <1 <1 4.68 26 15-0ct-08 9.4 <1 <1 <1 5,15 30 4-Mar-09 11.0 <1 <1 <1 5.2 29 24-Jun-09 16.0 <1 <1 <1 6.2 30 15-Sep-09 13.0 <1 <1 <1 5.9 26 22-Dec-09 8.2 <1 <1 <1 5.4 30 24-Feb-l0 69.0 <1 <1 <1 5.1 41 9-Jun-l0 29.0 <1 <1 <1 9 35 12-Aug-l0 29.0 <1 <1 <1 9 37 13-0ct-l0 30.0 <1 <1 <1 10 50 22-Feb-ll 39.0 ND ND ND 10 52 26-May-ll 26.0 ND ND ND 9 36 17-Aug-ll 29.0 ND ND ND 4.6 23 7-Dec-ll 28.0 ND ND ND 6.3 23 Chloroform Carbon Chlorom'ethane Methylene Nitrate Chloride T\V4-19· (ug/I) T~trachloride (ug/I) , ·Chloride (mg/I) , ,'(ing/I)' " '(u2/1) " . (u2/1) 12-Sep-02 7700 47.6 24-Nov-02 5400 42 28-Mar-03 4200 61.4 15-May-03 4700 NA 23-Jun-03 4500 11.4 15-JuI-03 2400 6.8 15-Aug-03 2600 4 12-Sep-03 2500 5.7 25-Sep-03 4600 9.2 29-Gct-03 4600 7.7 9-Nov-03 2600 4.8 29-Mar-04 NA NA 22-Jun-04 NA NA 16-Aug-04 7100 9.91 17-Sep-04 2600 4.5 17-Nov-04 1800 3.6 16-Mar-05 2200 5.3 25-May-05 1200 5.7 31-Aug-05 1400 <5 <5 <5 4.6 NA I-Dec-05 2800 <50 <50 <50 <0.1 NA 9-Mar-06 1200 <50 <50 <50 4 86\. 14-Jun-06 1100 <50 <50 <50 5.2 116 20-JuI-06 1120 <50 <50 <50 4.3 123 8-Nov-06 1050 1.6 2.6 <1 4.6 134 28-Feb-07 1200 1.3 <1 <1 4 133 27-Jun-07 1800 2.3 15-Aug-07 1100 1.9 <1 <1 4.1 129 10-Gct-07 1100 1.9 <1 <1 4 132 26-Mar-08 1800 2.9 <1 <1 2.2 131 25-Jun-08 1000 1 <1 <1 2.81 128 10-Sep-08 3600 8.6 <1 <1 36.2 113 15-Gct-08 4200 12 <1 <1 47.8 124 4-Mar-09 1100 1.2 <1 <1 3.2 127 24-Jun-09 990 1.2 <1 <1 2.4 132 15-Sep-09 6600 15 <1 <1 0.1 43 14-Dec-09 4700 16 <1 <1 26.7 124 17-Feb-l0 940 1.3 <1 <1 2 144 9-Jun-l0 1800 4.2 <1 <1 4.4 132 16-Aug-l0 2000 4.9 <1 <1 5.9 142 11-0ct-10 1200 1.3 <1 <1 2.7 146 17-Feb-11 3400 17 ND ND 17 135 7-Jun-11 4000 8.3 ND ND 12 148 17-Aug-11 970 2.1 ND ND 3 148 5-Dec-11 2200 5.4 ND ND 5 148 , Carbon Methylene. TW4-20 Chloroform. Tetrachloride Chloromethane -Chloride. . Nitrate Chloride . (ug/l) (ug/l) (ug/l) . (u~/l) . (mg/l) . (mg/l) 25-May-05 39000 NA NA NA 10.1 NA 31-Aug-05 3800 <10 <10 <10 2.9 NA 1-Dec-05 19000 <250 <250 <250 1.8 NA 9-Mar-06 9200 <500 <500 <500 3.8 120 14-Jun-06 61000 <500 <500 <500 9.4 235 20-Jul-06 5300 <1000 <1000 <1000 2.9 134 8-Nov-06 11000 7.1 1.9 2.2 3.5 124 28-Feb-07 4400 3.1 <1 1.1 4.2 124 27-Jun-07 1800 2.2 <1 <1 2.3 112 15-Aug-07 5200 3.5 <1 1.8 2.1 117 10-0ct-07 9000 6.8 <1 1.9 5.6 170 26-Mar-08 13000 9 <1 1.5 0.9 132 25-Jun-08 30000 13 <1 1.2 7.96 191 10-Sep-08 21000 15 <1 3.7 4.44 156 15-0ct-08 NA NA NA NA 5.51 166 4-Mar-09 8200 5.7 <1 5.2 5.1 164 24-Jun-09 6800 4.9 <2 4.2 2.9 164 15-Sep-09 13000 8.4 <2 4.4 3.3 153 14-Dec-09 15000 14 <1 3 5.3 187 17-Feb-10 3500 2.7 <1 3.2 2 179 14-Jun-10 18000 11 <1 3.7 5.6 200 16-Aug-10 15000 12 <1 2.2 5.3 196 11-0ct-10 24000 20 <1 5.5 4.6 203 23-Feb-11 31000 27 ND 19 4.4 220 1-Jun-11 8100 10 ND 2.1 4.8 177 17-Aug-11 6800 7.3 ND 3.1 6.5 207 16-Nov-11 7900 7.2 ND 2.5 4.2 186 Chloroform, Carbon Chloromethane ' Methyl~ne Nitrate Chloride TW4-21 " (ug/l) Tetrachloride '(ug/l) . Chloride (mg/l) (rug/l) , (ug/l) '. . , , (ug/l), . ,. 25-May-05 192 NA NA NA 14.6 NA 31-Aug-05 78 <5 <5 <5 10.1 NA I-Dec-05 86 <1 1.0 <1 9.6 NA 9-Mar-06 120 <2.5 <2.5 <2.5 8.5 347 14-Jun-06 130 <2.5 <2.5 <2.5 10.2 318 20-Jul-06 106 <2.5 <2.5 <2.5 8.9 357 8-Nov-06 139 2 <1 <1 8.7 296 28-Feb-07 160 1.8 <1 <1 8.7 306 27-Jun-07 300 5.8 <1 <1 8.6 327 15-Aug-07 140 <1 <1 <1 8.6 300 10-0ct-07 120 <1 <1 <1 8.3 288 26-Mar-08 380 7 <1 <1 14.3 331 25-Jun-08 160 1.7 <1 <1 8.81 271 10-Sep-08 120 1.6 <1 <1 7.57 244 15-0ct-08 170 2 <1 <2 8.00 284 II-Mar-09 180 <1 <1 <1 8.3 279 24-Jun-09 200 <1 <1 <1 8.1 291 15-Sep-09 140 <1 <1 <1 9.2 281 22-Dec-09 160 <1 <1 <1 8.4 256 25-Feb-l0 170 <1 <1 <1 8.4 228 10-Jun-l0 210 1.2 <1 <1 12 266 12-Aug-l0 390 9.2 <1 <1 14 278 13-0ct-l0 200 1.2 <1 <1 7 210 22-Feb-ll 230 1.2 ND ND 9 303 28-Jun-ll 290 4.8 ND ND 12 290 17-Aug-ll 460 6.3 ND ND 14 287 7-Dec-ll 390 6.7 ND ND 13 276 Chloroform· Carbon Chloromethane Methylene Nitrate Chloride TW4-22 . (ug/I) Tetrachloride . (ug/I) , Chloride (mg/l)' . (mg/I)· (u~/I) (u~/l) 2S-May-OS 340 NA NA NA 18.2 NA 31-Aug-OS 290 <S <S <S IS.7 NA I-Dee-OS 320 <S <S <S IS.1 NA 9-Mar-06 390 <10 <10 <10 IS.3 236 14-Jun-06 280 <10 <10 <10 14.3 221 20-Jul-06 864 <10 <10 <10 14.S 221 8-Nov-06 3S0 <1 1.6 <1 IS.9 236 28-Feb-07 440 <1 <1 <1 20.9 347 27-Jun-07 740 <1 <1 <1 19.3 273 IS-Aug-07 S30 <1 <1 <1 19.3 2S9 10-0et-07 440 <1 <1 <1 18.8 238 26-Mar-08 1400 <1 <1 <1 39.1 S19 2S-Jun-08 1200 <1 <1 <1 41.9 271 10-Sep-08 6300 1.3 <1 <1 38.7 S24 IS-0et-08 630 <2 <2 <2 36.3 S39 II-Mar-09 390 <1 <1 <1 20.7 177 24-Jun-09 730 <1 <1 <1 20.6 177 IS-Sep-09 2300 <1 <1 <1 40.3 391 29-Dee-09 380 <1 <1 <1 17.8 17S 3-Mar-l0 2200 <1 <1 <1 36.6 427 IS-Jun-l0 S40 <1 <1 <1 19 134 24-Aug-l0 340 <1 <1 <1 IS 130 13-0et-l0 340 <1 <1 <1 16 134 23-Feb-ll 1300 ND ND ND 18 114 I-Jun-ll 210 ND ND ND 17 138 17-Aug-ll 4S0 ND ND ND IS 120 7-Dee-ll 400 ND ND ND 19 174 Carbon " Methylene Chloroform Chloromethane ' Nit~ate Chloride TW4-23 -(ug/l) Tetrachloride (ug/l) , Chloride (mg/l) , (m'g/l) (ug/l) , (ug/l)- 27-Jun-07 <1 <1 <1 <1 <0.1 47 15-Aug-07 <1 <1 <1 <1 <0.1 46 IO-Oct-07 <1 <1 <1 <1 <0.1 43 26-Mar-08 <1 <1 <1 <1 <0.1 41 25-Jun-08 <1 <1 <1 <1 <0.05 41 IO-Sep-08 <1 <1 <1 <1 <0.05 35 15-0ct-08 <2 <2 <2 <2 <0.05 51 4-Mar-09 <1 <1 <1 <1 <0.1 41 24-Jun-09 <1 <1 <1 <1 <0.1 43 15-Sep-09 <1 <1 <1 <1 <0.1 43 16-Dec-09 <1 <1 <1 <1 <0.1 37 24-Feb-IO <1 <1 <1 <1 <0.1 45 8-Jun-IO <1 <1 <1 <1 <0.1 40 IO-Aug-IO <1 <1 <1 <1 <0.1 40 5-0ct-IO <1 <1 <1 <1 <0.1 34 16-Feb-II ND ND ND ND ND 44 25-May-II ND ND ND ND ND 44 16-Aug-II ND ND ND ND ND 41 15-Nov-II ND ND ND ND ND 43 Chloroform . Carbon Chloromethane Methylene' . Nitrate Chloride : TW4-24 .~ (ug/l) tetrachloride (ug/l) Chloride. (mg/I) . ' (mg/l) (ug/l) (ug/l) , . 27-Jun-07 2.6 <1 <1 <1 26.1 770 15-Aug-07 2.2 <1 <1 <1 29 791 10-0ct-07 1.5 <1 <1 <1 24.7 692 26-Mar-08 1.5 <1 <1 <1 24.4 740 25-Jun-08 1.4 <1 <1 <1 45.3 834 10-Sep-08 2.9 <1 <1 <1 38.4 1180 15-0ct-08 <2 <2 <2 <2 44.6 1130 4-Mar-09 1.4 <1 <1 <1 30.5 1010 24-Jun-09 1.5 <1 <1 <1 30.4 759 15-Sep-09 1.4 <1 <1 <1 30.7 618 17-Dec-09 1.2 <1 <1 <1 28.3 1080 25-Feb-l0 1.3 <1 <1 <1 33.1 896 9-Jun-l0 1.7 <1 <1 <1 30 639 24-Aug-l0 1.8 <1 <1 <1 31 587 6-0ct-l0 1.4 <1 <1 <1 31 522 17-Feb-ll 1.8 ND ND ND 31 1100 26-May-ll 1.1 ND ND ND 35 1110 17-Aug-ll 1.7 ND ND ND 34 967 7-Dec-ll 1.2 ND ND ND 35 608 ·. Carbon Methylene Chloroform . Chloromethane Nitrate Chloride TW4-25 · ... (ug/I) .. Tetrachloride (ug/l) Chloride (mg/I) (mg/I) (ug/I) .(ug/l) .. 27-Jun-07 <1 <1 <1 <1 17.1 395 15-Aug-07 <1 <1 <1 <1 16.7 382 10-0ct-07 <1 <1 <1 <1 17 356 26-Mar-08 <1 <1 <1 <1 18.7 374 25-Jun-08 <1 <1 <1 <1 22.1 344 10-Sep-08 <1 <1 <1 <1 18.8 333 15-0ct-08 <2 <2 <2 <2 21.3 366 4-Mar-09 <1 <1 <1 <1 15.3 332 24-Jun-09 <1 <1 <1 <1 15.3 328 15-Sep-09 <1 <1 <1 <1 3.3 328 16-Dec-09 <1 <1 <1 <1 14.2 371 23-Feb-l0 <1 <1 <1 <1 14.4 296 8-Jun-l0 <1 <1 <1 <1 16 306 1 O-Aug-l 0 <1 <1 <1 <1 14 250 5-0ct-l0 <1 <1 <1 <1 15 312 16-Feb-ll ND ND ND ND 15 315 25-May-l1 ND ND ND ND 16 321 16-Aug-l1 ND ND ND ND 16 276 15-Nov-l1 ND ND ND ND 16 294 . Carbon . ~~thylene ~'TW4-26 . ' Chloroform Tetrachloride . 1-ChlorOJ:nefl)ane .Chloride e, Nitrate Chloride -_ (ug/l) . -(ug/l) (mg/I) . , (mg/l). _ (ug/l) -(ug/l) ,,: IS-Jun-l0 13 <1 <1 <1 7.9 33 ll-Aug-l0 S <1 <1 <1 9 17 6-0ct-l0 S.4 <1 <1 <1 9.6 22 22-Feb-ll 2.0 ND ND ND 10 30 26-May-ll 2.9 ND ND ND 10 IS 17-Aug-ll 2.8 ND ND ND 11 19 7-Dec-ll S.2 ND ND ND 10 26 TabL Chloroform Concentration Trend Graphs o o o o I\.) o o o (ug/L) eN o o o ~ o o o CJ1 o o o C> o o o Sep-99 I » ••• Dec-99 Mar-OO Jun-OO Sep-OO Dec-OO Mar-01 Jun-01 Sep-01 Dec-01 Mar-02 Jun-02 Sep-02 Dec-02 Mar-03 Jun-03 Sep-03 Dec-03 Mar-04 Jun-04 T I ... J Sep-04 Dec-04 Mar-05 Jun-05 Sep-05 Dec-05 Mar-06 Jun-06 Sep-06 Dec-06 Mar-O? Jun-O? Sep-O? Dec-O? Mar-08 Jun-08 Sep-08 Dec-08 Mar-09 Jun-09 Sep-09 Dec-09 Mar-10 Jun-10 Sep-10 Dec-10 Mar-11 Jun-11 Sep-11 '"'-I o o o s: ~ ~ I () ~ o a cr ., 3 ~ c CD en In CI) :s (ij > E ... 0 ~ 0 ... .2 .t: 0 'Ill""" I ~ I- ..----........---.:....-....----......,.---_----...-----.----,-£ ~-5nv-v ~ O~-AON-8~ 60-lnr-9 80-qa,:j-ll 90-PO-O~ 90-ABV\I-8l VO-UBr-V~ lo-das-~ ~O-JdV-6~ 1-----+----+----+----+----+----+-----+ 86-lnr-vl o o o I'- o o o CO o o o L{) o o o '<:t o o o ('f) o o o N o o o o TW4-2 Chloroform Values 7000 ~----------------------------------------------------------------------------------~ 6000 4 • 5000 4 ...........: \ I \J 'I \ A 4000 I ,\:1 , I ~\ /\ ::i -en ::J -3000 4 2000 4 I / \ I Data point represented corresponds 1000 -I I to laboratory results. The value is likely underestimated due to laboratory error not considering the dilution factor of 10. I 0 co Q) ~ N ...q L{) <0 co Q) 0 N (V") Q) Q) 0 0 0 0 0 0 0 ~ ~ ~ I I I I I I I I I I I I "S () "-0. C >-t5 ..0 "S > "-0> (J.) 0. (J.) ro ro (J.) 0 0. ::l -, « 0 -, « I 0 (J) -, ~ LL I Z « ...q I I I I I I <0 I I I Q) ...q I 0 N <0 co N co ...q N N o tn CI) ::l cu > E ... ~ 0 ... 0 .c (J ~ • ~ I- ...-----r---..,.-----r---....,-----r------,---.,...----r----r-£ ~ -5nv-v ~ O~-I\ON-B~ 60-lnr-9 Bo-qa=l-GG 90-PO-O~ 90-AeV\l-BG vo-uer-V~ Go-das-~ --"i--t---+--L_l ~O-JdV-6 ~ 1------+----+---+----+----1----+----+---+----+ B6-lnr-vG o o L() ""'" o o o ""'" o o L() (") o o o (") o o L() N o o o N o o L() o o o o o L() o o CJ1 o -" o o (ug/L) CJ1 o I'\) o o I'\) CJ1 o c..v o o c..v CJ1 o 24-Jul-98 +1. ----t------l-----l-------+----+----t------i 6-Dec-99 19-Apr-01 1-Sep-02 I I / I ~ I 14-Jan-04 --I I' ./ I 28-May-05 i J,A/ 10-0ct-06 -I ~ '1 22-Feb-08 6-Jul-09 18-Nov-10 1-Apr-12 14-Aug-13 -l-__ ......J...,,--.. __ '--__ -l-__ --L. ___ ...L..-__ -L __ --l -I ~ • CJ1 0 ::T 0-.., 0 ...... 0 .., 3 < !. r::: CD en o '" o o ~ o o (ug/L) 0> o o 00 o o o o o ~ '" o o 07/24/98 +I----+-----+-----t----:----t-------t-----; 12/06/99 04/19/01 09/01/02 01/14/04 ~ \ 05/28105 + \ 10/10106 ~ ~ \ 02/22/08 07/06/09 11/18/10 04/01/12 08/14/13 --'-___ ..l..-___ ...L.-_-:---_...l..-___ L-____ .L-__ ---1 -I ~ I 0) (") :::r 0" .., 0 cr .., 3 < C) t: CD en o ~ o o o I\.) o o o (ug/L) VJ o o o ~ o o o 01 o o o 0> o o o 24-Jul-98 +I----+------t-----t-------t-----t-------j 6-0ec-99 19-Apr-01 1-Sep-02 14-Jan-04 i II ~ 28-May-05 i II ~I 10-0ct-06 ~ II I 22-Feb-08 6-Jul-09 18-Nov-10 1-Apr-12 14-Aug-13 ~---------~-----------~------~--------~~-----~------------~ -I ~ I ...... 0 ~ 0" .., 0 0' .., 3 < Q) c (I) f/) II) CD :::l ns > E .... 0 'to-0 .... .2 .t: 0 co • ~ I- r---~----~---'----~----~----r----~----~----~--~£~-6nV-17~ O~-AON-8~ 60-l nr-9 80-qa=l-ll 90-PO-O~ 90-AeV\l-8l 170-uer-17 ~ lo-das-~ 1-----+---1---+----+---1---+----+---1---+----+ 86-lnr-17l o o L() o L() ~ o o ~ o L() ('I') o o ('I') o L() ('oJ o o ('oJ o L() o o o L() o f/) CI) :::s CU > E ~ ~ 0 ~ .2 ~ (.) 0) I ~ ~ ..--------,.------r-----,.------,...----.,----~---_r £ ~-6nv-v ~ O~-AON-S~ 60-lnr-g so-qa.::h~Z 9O-PO-O~ 90-ABV\I-S2 VO-UBr-V~ zo-das-~ I------l-----+----+----+----+-----l-----+ S6-lnr-vZ o <.0 o L() (l/Bn) o N o o tn CI) ::::J cu > E '-0 "-0 '-0 ~ (.) 0 T"" I ~ I- r------..,.------:;.....,--------,----r------r-------r-----r £ ~ -Bnv-p ~ 60-lnr-g 80-qa:::l-ll 9O-PO-O~ 90-AeV\l-8l Po-uer-p~ lo-das-~ f-----+-----l----+----i-----+----+-----+ ~O-JdV-6 ~ o o ""'" o o N o o o o o 00 o o <.0 (l/Bn) o o ""'" o o N o t/) CD :::l cu > E .... .E 0 .... .2 .c (.) T- T-I ~ ~ ....-----r----~--_._·~--'7----=---......__--___,..----r £ ~-6nv-v ~ o ~-"oN-S~ 60-lnr-9 SO-qa.::l-ll 90-PO-O~ 90-AeV\j-Sl vo-uer-v~ lo-das-~ I-----+----+----+----+----+----+-----!-~O-JdV-6 ~ o o o ,..... o o o <0 o o o LO o o o ..q- o o o ('t") o o o C\I o o o o 19-Apr-01 1-Sep-02 14-Jan-04 2B-May-05 10-0ct-06 22-Feb-OB 6-Jul-09 1 B-Nov-1 0 1-Apr-12 14-Aug-13 o o ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~ 0 ~~ a ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~ . ~~ ~~ ~~ ~~ ~~ ~ ~~ ~ ~~ ~ ~ ~~ o CJ'1 (ug/L) a a, N (:) I .~~---- -I ~ • ~ I\) o ::r 0" .., o 0' .., 3 < Q) c: CD en Sep-02 Dec-02 Mar-03 Jun-03 Sep-03 Dec-03 Mar-04 Jun-04 Sep-04 Dec-04 Mar-05 Jun-05 Sep-05 Dec-05 Mar-06 Jun-06 Sep-06 Dec-06 Mar-07 Jun-07 Sep-07 Dec-07 Mar-08 Jun-08 Sep-08 Dec-08 Mar-09 Jun-09 Sep-09 Dec-09 Mar-10 Jun-10 Sep-10 Dec-10 Mar-11 Jun-11 Sep-11 o ~~ ~ ~~ ~~ , ~~ ~~ ~~ , ~~ ~~ ~~ ~~ ~, ~~ ~~ ~ ~ ~ ~~ ~~ ~~ ~~ ~, ~ ~ ~ ~ ~ ~ ~ ~ ~ ~~ !=' o ~ o w o ~ (ug/L) o (]I () :::::T 0 ...., 0 0' ...., 3 :::::T Q) en :::J 0 r"+ C'" CD CD :::J a. CD r"+ CD C') r"+ CD a. _. :::J --I ~ ~ I ~ W o 0> o ~ o 00 o <.0 I -I ~ I ~ W o :::r 0" a 0' .., 3 < Q) t: CD tA ~ ~-das-p~ ~ ~-qa.::J-9Z; o~-6ny-o~ ~ ~ ~ I ~ o ~ -uer-z;z; S l- e .- -0 60-lnr-9 Q) +-I t) Q) +-I Q) -0 e Q) Q) ..c +-I 0 so-unr-~ e en co ..c E LO-J\ON-P~ L... ~ ~ 0 L... ~~ 0 -..c LO-Jdy-SZ; () ~. ~. 90-PO-O~ 90-JeV\l-pz; o o o o o (1/6n) tJ) CD ::::s cu > E t.-O 'I-0 t.- .2 .c U (0 N ~ ::i £~-6nv-v~ O~-AON-B~ 60-lnr-g BO-qa.::l-GG 9O-PO-O~ 90-AeV\l-BG ~--------~---------4----------4----------+----------+vo-uer-v~ o o L.() N o o o N o o L.() o o o o o L.() o rn CI) ::::J ns > E .... 0 'I-0 .... .2 .£: U <0 "C""" • ~ to- O~-AON-S~ 60-lnr-9 SO-qa.::l-ll 90-PO-O~ 90-AeV\l-Sl vo-uer-v~ lo-das-~ \-------+-----+----+-----+----+-------+ ~O-JdV-6 ~ o o CO o o L.() o o ""'" o o ("I) o o N o o o ") I I I (1/Bn ) ex:> o (0 o N o £ ~-5nv-v~ 0 0 0 ~ 0 O~-AON-B~ 0 0 0 0 0 0 60-lnr-g 0 ~~ 0 0 Bo-qa.::h~G 0 0 0 0 ~~ 90-PO-O~ ~~ 0 ~~ ~~ 0 90-AeV\l-BG 0 0 ~~ ~~ 0 vo-uer-v~ 0 0 0 ~ Go-das-~ o t/) Q) ::l '" > E s... ~ 0 s... .2 J: U CO ~ I ~ I- ·-r------r----,-------r--.....,---r £ ~ -5ny-v ~ O~-AON-B~ 60-lnr-9 Bo-qa.::h~l 90-PO-O~ SO-AelAJ-Bl vo-uer-v~ lo-das-~ i-----l----+---+---t-------I---l---f----I---+--__t_ ~ O-JdY-6 ~ o o L!) o L!) .;t o o .;t o L!) 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N (l/Bn) o o N o l!) o o o l!) o ,....----.-----,...--'-__ r--'--....,--------,------.,.,....---...... £~-6nv-v~ O~-"oN-g~ 60-lnr-g go-qa~-ll 90-PO-O~ ~------~------+_------+_------4_------~------~-------+vo-uer-v~ o o o I'-- o o o CD o o o L() o o o """ o o o ('f) o o o N o o o o ~~ ~ ~-unr o~-des C") N I o~-unr ~ S l-O~-JeV\l e .- "'C Q) +-' U Q) 60-deS +-' Q) "'C e 6o-unr Q) Q) ..c 60-Je V\l +-' a e en co ..c E eo-des L-~ a eo-unr L-a -..c () eO-JeV\l Lo-des Lo-unr o o o o o (1/6n) o <::> o i.n t-> t-> <::> i.n (ug/L) N N w <::> i.n <::> 10-Oct-06 l-----1-----r-----l----n---i j I I I I I I 28-Apr-07 ~ I I I I -II· j I I I I , ! I I i I 14-Nov-07 1 I 1 . , I "I I ~ I ! ! 1-Jun-OS l I ~ , i I , I I I ~ I " i 1S-Dee-OS j ~ J 6-Jul-09 J -! I 22-Jan-10 -j i 1 ~ 10-AUg-l0 -j 1 26-Feb-ll ~1 ·i ~ 1 '1 ! 14-Sep-ll --I ~ ~ 'J I I I I I I I w i.n l-Apr-12 -'<-___ ----'-____ '--___ -"--___ --L ___ ---.J ____ L-___ ..J ~ ~ I N ~ n ::r 0" -: o ..... o -: 3 < Q) c CD V) r-"--''''''---'-------_._-'--'~-r-~---_._ .. r---.--~.------. --_._-; ~ I ~ ~-des I ~~ L() N I ~ S l- e .-o c CJ) co .c E f- S o f-a .c () ~~-unr o~-des o 0 ~-unr ~~ 60-deS ~~ 6o-un r o ~~ Bo-des ~ Bo-unr LO-deS ~ __ -4 ____ -+ ____ ~ ____ 4-____ ~ __ ~~ __ -+ ____ ~ ____ 4-____ ~+~Lo-unr o o o o o (1,6n) r-------------------.---.----... --.----··------.---··--'_.--, .. __ . __ .. _--'_. __ .. _.,-_ ...... I (ug/I) I ! ~ ~ ~ I I :------;------,;---.--,-:--,------;----.----:---~------; I · ! I I I I I I I ! I I. I I Jun-l0 I .I! I I ! i I I I i I I i i ,! ! ! I!! I! Jul-l0 I i I I I! Ii! . I ~ ! I! I '. ! I Aug-l0 ! I I Ii _,I I ! , ; I Sep-l0 I I I I ! I 4 ! ! ! I · Oct-10 I I I '-I ! I I I I ! Nov-l0 j! ! · I I . I I Dec-lO I I 1 I Jan-ll I I I J ' J ! ! I Feb-ll I ! -l I Mar-11 I I J ! ! i ! I Apr-11 I ! I May-ll I 1 I Jun-11 ~. , .. I Jul-11 I I I i I 1 ! Aug-ll ! I I · i I Sep-11 I I ~ I Oct-ll ! I J I Nov-11 J """" :2E ~ I N en n :r 0" -,: o cr -,: 3 < Q) C to V) I ! ! ! . ! Oec-ll I I I ..J • L __ ._,~ ___ . ______ _.:..._. ________ .. _._. _________ . __ .. ___ ._._. ____ ., __ , __ . _____ . __ .. _. ___ ~ ______ ._. ___ ,,_ . ......--J TabM CSV Transmittal Letter Kathy Weinel From: Sent: To: Cc: Subject: Attachments: Dear Mr. Lundberg, Kathy Weinel Tuesday, February 07,20129:33 AM 'rlundberg @ utah.gov' ~ 'Dean Henderson'; Ron Hochstein; Harold Roberts; David Frydenlund; Jo Ann Tischler; Jaime Massey; David Turk Transmittal of CSV Files White Mesa Mill 2011 Q4 Chloroform Monitoring C11110773 (1 ).pdf; C11120053 (1 ).pdf; C11120292 (1 ).pdf Attached to this e-mail is an electronic copy of laboratory results for chloroform monitoring conducted at the White Mesa Mill during the fourth 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