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HomeMy WebLinkAboutDRC-2008-002343 - 0901a0688083f581I i DENISOJTI MINES VIA FEDERAL EXPRESS August 29,2008 Dane L. Finerfrock, Executive Secretary Utah Radiation Control Board Utah Department of Environmental Quality 168 North 1950 West P.O. Box 144810 Salt Lake City, Utah 84114-4810 Dear Mr. Finerfrock: Denison Mines (USA) Corp. 1050 tTth Street, Suite 950 Denvor, CO 80265 USA Tel: 303 628-7798 Fax : 303 3894125 www.denisonmines.com K'o Re: Transmittal of 2nd Quarter 2008 Chloroform Monitoring Report'White Mesa Uranium Mill Enclosed are two copies of the White Mesa Uranium Mill Chloroform Monitoring Report for the 2nd Quarter of 2008, as required under the State of Utah Notice of Violation and Groundwater Corrective Action Order No. UGQ-20-01. Yours very truly, /*A* DENrsoN Mtnes (USA) ConP. Steven D. Landau Manager-Environmental Affairs White Mesa Uranium Mill Chloroform Monitoring Report State of Utah Notice of Violation and Groundwater Corrective Action Order UDEQ Docket No. UGQ-20-01 2 "d Quarter (January through March) 2008 Prepared by: Denison Mines (USA) Corp. (DUSA) 1050 17th Street, Suite 950 Denver CO 80265 August 29,2008 I I I I I I I I I I I I I I t I I I I 1. INTRODUCTION This is the Quarterly Chloroform Monitoring Report, as required under State of Utah Notice of Violation and Groundwater Corrective Action Order State of Utah Department of Environmental Quality ("UDEQ") Docket No. UGQ-20-01 for the 4't Quarter of 2008 (the "Quarter") for Denisori Mines (USA) Corp.'s ("DUSA's") White Mesa Uranium Mill (the "Mill"). This Report also includes the Operations Report for the Long Term Pump Test at MW-4, TW4-19, TW4-15 (MW-26) and TW4-20 for the Quarter. 2. SAMPLING AI\D MONITORING PLAN 2.1. Description of Monitor Wells Sampled During the Quarter During the Quarter, the following chloroform contaminant investigation groundwater samples and measurements were taken: 2.1.1. Groundwater Monitoring Groundwater Monitoring was performed in all of the chloroform monitoring wells, being the following wells: o MW-4 o TW4-A o TW4-1c TW4-2o TW4-3 o TW4-4 o TW4-5 o TW4-6c TW4-7 o TW4-8o TW4-9o TW4-10o TW4-11o TW4-12 o TW4-13o TW4-14o TW4-15 (MW-26)o TW4-16o TW4-17 (MW-32)o TW4-18o TW4-19o TW4-20. TW4-21o TW4-22o TW4-23o TW4-24o TW4-25 The locations of these wells are indicated on the map attached under Tab A. Wells sampled during this reporting period were analyzed for the following constituents:o Chloroform . Chloromethane. Carbon tetrachlorideo Methylene chloride. Chloride o Nitrogen, Nitrate + Nitrite as N a) b) c) b) I I I t I I I T T I I I I I I I t I I 2.1.2. Groundwater Head Monitoring Depth to groundwater was taken in the following wells and/or piezometers during the Quarter: All of the chloroform contaminant investigation wells listed in paragraph2.l.l above on 6t24 & 6125108; All of the point of compliance monitoring wells under the Mill's Groundwater Discharge Permit ("GWDP") on 5/28108 through 6/18/08. Piezometers - P-l, P-2,P-3, P-4 and P-5 on 5129108. In addition, weekly depth to groundwater measurements were taken in MW-4, TW4-15 (MW- 26),TW4-19 and TW4-20, as part of the long term pumping test for MW-4. ,,Sampling Methodology, Equipment and Decontamination Procedures The sampling methodology, equipment and decontamination procedures that were performed for the chloroform contaminant investigation during the Quarter can be summarized as follows: 2.2.r. a) 2.2.2. a) Well Purging and Depth to Groundwater A list is gathered of the wells in order of increasing chloroform contamination. The order for purglng is thus established. Mill personnel start purging with all of the non- detect wells and then move to the more contaminated wells in order of chloroform contamination, starting with the wells having the lowest chloroform contamination; and Before leaving the Mill office, the pump and hose are rinsed with de-ionized ("DI") water. Mill personnel then proceed to the first well which is the well indicating the lowest concentration of chloroform based on the previous quarters sampling results. Well depth measurements are taken and the two casing volumes are calculated (measurements are made using the same instrument used for the monitoring wells under the Mill's GWDP). The Grundfos pump (a 6 gpm pump) is then lowered to the bottom of the well and purging is begun. At the first well, the purge rate is established for the purging event by using a callbrated 5 gallon bucket. After the evacuation of the first well has been completed, the pump is removed from the well and the process is repeated at each well location moving from least contaminated to most contaminated. All wells are capped and secured prior to leaving the sampling location. Sampling Following the purging of all chloroform investigation wells, the sampling takes place (usually the next morning). Prior to leaving the Mill office to sample, a cooler along with blue 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 T I T I I I I I I I t I I I I I I I t involved with the collection of water and samples are the outfitted with rubber gloves. Chloroform investigation samples are collected by means of dedicated bailers and the wells are purged by means of a dedicated portable pump. Each quarterly pumping and sample collection event begins at the location least affected by chloroform (based on the previous quarters sampling event) and proceeds by affected concentration to the most affected location. The dedicated portable pump is appropriately decontaminated prior to each purging sampling event and the QA rinsate sample is collected after said decontamination but prior to the commencement of the sampling event. b) Mill personnel use a disposable bailer to sample each well. 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; (i) (ii) (iii) First, a set of VOC vials is filled. This set consists of three 40 ml vials provided by the Analytical Laboratory. The set is not filtered and is preserved with HCL; Second, a 500 ml sample is collected for NitratesArlitrites. This sample is also not filtered and is preserved with H2SO4 (the bottle for this set is also provided by the Analytical Laboratory); Third, a 500 ml sample is collected for Chloride. This sample is not filtered and is not preserved; and c) 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 blue ice. The well is then recapped and Mill personnel proceed to the next well. DUSA completed (and transmitted to UDEQ on May 25,2006) a revised Quality Assurance Plan ("QAP") for sampling under the Mill's GWDP. The GWDP QAP was reviewed by UDEQ and has been approved for implementation. The QAP provides a detailed presentation of procedures utilized for groundwater sampling activities under the GWDP. While the water sampling conducted for chloroform investigation purposes has been conformant with 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 QA procedures in the form of a separate document. The chloroform QA document describes the differing needs of the chloroform investigation program, and is and attachment to the GWDP QAP where QA needs other than those described in the chloroform QA document are addressed. The current version of the QAP dated June 18, 2008 has been approved by UDEQ, including those requirements for Chloroform monitoring under separate attachment to the QAP. I T I T I I T I T I I I I I I I T I I 2.3 Field Data Worksheets Attached under Tab B are copies of all Field Data Worksheets that were completed during the Quarter for the chloroform contaminant investigation monitoring wells listed in paragraph2.l.l above and sampled June 25,2008. 2.4 Depth to Groundwater Sheets Attached under Tab C are copies of the Depth to Water Sheets for the weekly monitoring of MW-4, TW4-15 (MW-26), TW4-19 andTW4-20 as well as the monthly depth to groundwater monitoring data for chloroform contaminant investigation wells measured during the quarter. Depthto-groundwater measurements collected on June 24 & 25,2008 for the Chloroform wells were utilized for groundwater contours are included on the Field Data Worksheets at Tab B of this report. 3. DATA INTERPRETATION 3.1. Interpretation of Groundwater Levels, Gradients and Flow Directions. 3. 1 . 1 . Current Site Groundwater Contour Map Included under Tab D is a water table contour map, which provides the location of all of the wells and piezometers listed in item 2.1.2 above for which depth to groundwater was taken during the Quarter, the groundwater elevation at each such well and piezometer, measured in feet above mean sea level, and isocontour lines to delineate groundwater flow directions observed during the Quarter's sampling event. The contour map uses the June 24 & 25,2008 data for the temporary Chloroform monitoring wells listed in paragraph 2.I.2 (a) above, May 28 through June 18, 2008 data for the wells listed in paragraph2.1,.2 (b), and May 29,2008 for Piezometers or the piezometers listed in paragraph2.l.2 (c) above. Also included under Tab D is a groundwater contour map of the portion of the Mill site where the four chloroform pumping wells are located, with hand-drawn stream tubes, in order to demonstrate hydraulic capture from the pumping. 3.1.2. Comparison of Current Groundwater Contour Maps to Groundwater Contour Maps for Previous Quarter The groundwater contour maps for the Mill site for the first quarter of 2008, as submitted with the Chloroform Monitoring Report for the first quarter of 2008, are attached under Tab E. A comparison of the water table contour maps for the Quarter to the water table contour maps for the previous quarter indicates similar patterns of drawdown related to pumping of MW-4, MW- 26 (TW4-15), TW4-19 and TW4-20. Water levels and water level contours for the site have not changed significantly since the last quarter, except for a few locations. I t I T I I I I I I I t I I T I t T I Reported decreases in water levels of approximately 9 feet in TW4-11, of approximately 7 feet in TW4-21, and of approximately 4 feet in MW-28 occurred, and a reported increase of approximately 5 feet occurred at MW-19. The decrease in water level at TW4-11 results in a water level that is more typical for that well than the apparently anomalous value reported for the previous quarter. Water level decreases occurred at MW-4, MW-26 (TW4-15), TW4-19, and TW4-20. Water level fluctuations in these pumping wells are due in part to fluctuations in pumping conditions just prior to and at the time the measurements are. The largest decrease (increase in drawdown) of approximately 33 feet occurred at TW4-19, and the smallest decrease, of nearly 3 feet, occurred at MW-4. 3.1.3. Hydrographs Attached under Tab F are hydrographs showing groundwater elevation in each chloroform contaminant investigation monitor well over time. 3.1.4. Deoth 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. 3.1.5. Evaluation of the Effectiveness of Hydraulic Capture Perched water containing chloroform has been removed from the subsurface by pumping MW-4, TW4-19, MW-26 (TW4-15), and TW4-20. The purpose of the pumping is to reduce total chloroform mass in the perched zone as rapidly as is practical. These wells 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 chloroforn were detected at these locations. The relatively high transmissivity of the perched zone in the vicinity of the 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. The impact of pumping these wells is indicated by the water level contour maps attached under Tabs D and E. Cones of depression have developed in the vicinity of the pumping wells which continue to remove significant quantities of chloroform from the perched zone. The water level contour maps indicate that effective capture of water containing high chloroform concentrations in the vicinity of the pumping wells is occurring. As noted in Section 3.1.2, decreases in measured water levels (increases in drawdowns) occurred at pumping wells MW-4, MW-26 (TW4-15), TW4-19 and TW4-20 between the first and second quarters of 2008. Overall, the combined capture of TW4-19, TW4-20, MW-4 and MW-26 (TW4-15) has not changed significantly, but has increased slightly, since the last quarter. The large increase in drawdown at TW4-19 has increased the apparent capture zone of this well relative to that of other nearby pumping wells. I I Although high chloroform concentrations exist at some locations downgradient of the pumpingr wells (for example, near TW4-4), the low permeability of the perched zone at these locations r would prevent significant rates of chloroform mass removal should these wells be pumped. By I pumping at the more productive, upgradient locations, however, the rate of downgradientr chloroform migration will be diminished because of the reduction in hydraulic gradients, and - natural attenuation will be more effective.I 3.2. Interpretation of Analytical Results I 3.2.1. Copy of Laboratory Results r Included under Tab H of this Report are copies of all laboratory analytical results for the t groundwater quality samples collected under the chloroform contaminant investigation on June 25,2008 along with the laboratory analytical results for a trip blank. I 3.2.2. Electronic Data Files and Format I DUSA has provided to the Executive Secretary an electronic copy of all laboratory results for I groundwater quality monitoring conducted under the chloroform contaminant investigation during the Quarter, in Comma Separated Values (CSV). A copy of the transmittal e-mail is I included under Tab I. I 3.2.3 Current Chloroform Isoconcentration MapI Included under Tab J of this Report is a current chloroform isoconcentration map for the Mill I site. 3.2.4 Data and Graphs Showing Chloroform Concentration Trends I Attached under Tab K is a table summarizing chloroform and nitrate values for each well over time. TW4-14 had a small amount of water just sufficient for sampling (see the discussion in I Section 2.1.1 above) Attached under Tab L are graphs showing chloroform concentration trends in each monitor well I over time. As TW4-14 was previously dry, a trend gaph for that well has not been included. 3.2.5 Analysis of Analytical Results I Comparing the analytical results to those of the previous quarter, as summari zed inthe table included under Tab K, the following observations can be made: I a) Chloroform concentrations have increased by more than ZOo/oin the following wells, I compared to last quarter: TW4-11, MW-26 (TW4-15), and TW4-20. I I I I T I I I T I I I t T I I I I I t I b) Chloroform concentrations have decreased by more than 20% in the following wells, compared to last quarter: TW4-6, TW4-9, TW4-16, TW4-19, andTW4-21; c) Chloroform concentrations have remained within 20o/o in the following wells compared to last quarter: MW-4, TW4-1, TW4-2, TW4-4, TW4-5, TW4-7, TW4-10, TW4-18, TW4-22, andTW4-24; d) Chloroform concentrations at TW4-16 decreased from I I pdL to non-detect; and e) TW4-3, TW4-8, TW4-12, TW4-13, TW4-14, MW-32 (TW4-17), TW4-23, and TW4-25 rernained non-detect. In addition, between the first and second quarters of 2008, the chlorofotm concentration in well TW4-20 increased from 13,000 pglL to 30,000 yt{L, the concentration in TW4-21 decreased from 390 ltglL to 160 1tglL, and the concentration in TW4-22 decreased from 1,400 ltglL to 1,200 ltElL. Wells TW4-23 and TW4-25 remained non-detect for chloroform, and the concentration in well TW4-24 decreased slightly from 1.5 to 1.4 1t/L.TWa-24,located west of TW4-22, andTW4-25, located north of TW4-21, bound the chloroform plume to the west and north. Chloroform concentrations in TW4-6, which was the most downgradient temporary perched well prior to installation of temporary well TW4-23, decreased from 52 to 24 1tglL. This well has likely remained outside the chloroform plume due to a combination of 1) slow rates of downgradient chloroform migration in this area due to low permeability conditions and the effects of upgradient chlorofoffn removal by pumping, and 2) natural attenuation. Both TW4-6 and TW4-23 bound the chloroform plume to the south. 3.3. Quality Assurance Evaluation And Data Yalidation Quality assurance evaluation and data validation procedures in effect at the time of sampling were followed. These involve three basic types of evaluations: field QC checks; Analyical Laboratory checks; and checks performed by DUSA personnel, as described below. 3.3.1 Field OC Checks Field Quality Control samples for the chloroform investigation program consist of a field duplicate sample, a field blank and a trip blank. These check samples are to be generated for each quarterly sampling episode. During the 2nd Quarter of 2008 duplicates (TW4-65, duplicate of TW4-17 and TW4-70, duplicate of TW4-17), a DI blank (TW4-60), an equipment rinsate sample (TW4-63) and a trip blank were collected and analyzed. The results of these analyses are included with the routine analyses under Tab H. 3.3.2 Analytical Laboratory OA/QC Procedures The Analytical Laboratory has provided summary reports of the analytical quality assurance/quality control (QA/QC) measurements necessary to maintain conformance with I I I I I T I I I I I I I I I I I t I NELAC certification and reporting protocol. The Analytical Laboratory QA/QC Summary Report, including copies of the Mill's Chain of Custody and Analytical Request Record forms, for the November sampling event, are included under Tab H. 3.3.3 Mill OA Manager Review The Mill QA Manager, which, for these sampling events was DUSA's Manager of Environmental Affairs, performed four types of reviews: a determination of whether Mill sampling personnel followed Mill sampling procedures; a review of the results from the Field QC Checks; a review of analytical reports for holding times and qualirying indicators for the data; and a review of the Analytical Laboratory QA/QC analysis. The results of the QA Manager's review are discussed below. a) Adherence to Mill Sampling SOPs On a review of adherence by Mill personnel to the sampling procedures summarized in Section 2.2 above, the QA Manager concluded that such procedures had been followed. b) Results From Field QC Checks All parameters were within the limitation for the TW4-17 duplication exercise, however, one parameter (Chloride) is annotated for the duplication of TW4-8 with a relative percent difference of. As such the results fo Nitrogen, Nitrate + Nitrite as N and for Methylene Chloride are provided with qualification relative to duplicability of data. The results of the QC evaluation of duplicate samples for this lt't Quarter, 2008 event is provided in the table below: Chloride 29 29 45 29 43% Nitroeen. Nitrate + Nitrite as N ND ND ND ND 0 Carbon tetrachloride ND ND ND ND 0 Chloroform ND ND ND ND 0 Chloromethane ND ND ND ND 0 Methylene Chloride ND ND ND ND 0 The quarterly results over time have shown improvement in the presence of chloroform in the field blank and rinsate sample. This quarters field blank TW4-60 found Chloroform at T3 uglL whereas the equipment rinsate blank TW4-63 found chlormethane at slightly above the detection limit (1 .a u/L). While improvement is noted, the QA Manager has on July 9, 2008 required the sampling personnel to purchase laboratory grade De-ionized (DI) water for field blank and equipment decontamination and to discontinue the use of onsite DI water. c) Review of Analytical Laboratory QA/QC Analysis and Analytical Reports The QA Manager reviewed the Analytical Laboratory's QA/QC Summary Reports and made the following conclusions; 9 I T I I I I I I I I T I I I I T I I T (i) Check samples were analyzed for each method used in analyzing the Chloroform investigation samples. These methods were: Parameter Method Nitrogen, (ttitrate + Nitrite as N) 8353.2 Chloroform, 8624 Carbon tetrachloride 8624 Chloromethane 8624 Methylene chloride 8624Chloride A4500-CL B (ii) The check samples included at least the following: a method blank, a laboratory control spike (sample), a matrix spike and a matrix spike duplicate; (iii) All qualifiers and the corresponding explanations in the summary reports are reviewed by the QA Manager. The qualifiers reported were for matrix interference in chloroform analyses in some of the analyzed monitoring location samples, however, the results exceeded the re-established reporting limit. The other qualifying data were for spike recovery on a surrogate analysis related to chloroform recovery for one of the surrogates, all other surrogates were acceptable. The recovery in surrogate analysis for chloroform relates to matrix interference. (iv) The laboratory holding time for all analyses was within chloroform specification and sample temperature was acceptable upon receipt. 4. LONG TERM PUMP TEST AT MW-4, TW4-15 (MW-26), TW4-19 AND TW4-20, OPERATIONS REPORT 4.1. 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, TW4-15 (MW-26) andTW4-20. 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. 4.2, 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 TW4-15 (MW-26) on August 8, 2003 and from TW4-20 on August 4,2005. Personnel from Hydro Geo Chem, Inc. were on site to conduct the a) b) c) 4.3. I I I I I I I I t I I t I I I I I I I 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 Chem 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, TW4-15 (MW-26), andTW4-20 on a weekly basis, and at selected temporary wells and permanent monitoring wells on a monthly basis (See Section 3.1 and Tabs B and C for a discussion of the water levels); Measurement of pumping history: (i) pumping rates(ii) total pumped volume(iiD operational andnon-operationalperiods; Periodic sampling of pumped water for chloroform and nitrate & nitrite analysis and other constituents, as discussed in detail in Section 3.2 above. Water Level Measurements Beginning August 16,2003, the frequency of water level measurements from MW-4, TW4-15 (MW-26), and TW4-19 was reduced to weekly. From commencsment of pumping TW4-20, water levels in that well 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, TW4-15 (MW-26), TW4-19 and TW4-20 are included under Tab C. Monthly depth-to-water measurements for October are recorded in the Field Data Worksheets included under Tab B. 4.4. Pumping Rates and Volumes 4.4.1. MW-4 Approximately 62,780 gallons of water were pumped from MW-4 during the Quarter. The average pumping rate from MW-4, when the pump was pumping, was approximately 4.0 gpm throughout the Quarter. The well is not purging continuously, but is on a delay device. The well purges for a set amount of time and then shuts off to allow the well to recharge. Water from MW-4 was transferred to the Cell 1 evaporation pond through a pipeline installed specifically for that purpose. At the end of the 3rd Quarter, 2007, and since commencement of pumping on April I 4, 2003, an estimated total of approxim ately | ,644,740 gallons of water have been purged from MW-4. l0 1l I I t T I I I I I I I I I I I I I t I 4.4.2. TW4-19 Approximately 380,310 gallons of water were pumped from TW4-19 during the Quarter. The average pumping rate from TW4-19, when the pump was pumping, was approximately 3.1 gpm throughout the Quarter. The pump in this well is operating on a delay. It pumps for approximately one and a half minutes and then is off for two to three minutes. Water from TW4- 19 was directly transferred to the Cell I evaporation pond through a pipeline installed specifically for that purpose. At the end of the l't Quarter, 2007, and since commencement of pumping on April 30, 2003, an estimated total of approximately 8,104,510 gallons of water have been purged from TW4-19. 4.4.3. TW4-15 MW-26) Approximately 44,840 gallons of water were pumped from TW4-15 (MW-26) during the Quarter. The average flow rate from TW4-15, when the pump was pumping, was approximately 5.5 gpm throughout the Quarter. The well is not purging continuously, but is on a delay device. The well now purges for a set amount of time and then shuts off to allow the well to recharge. The water is directly transferred to the Cell I evaporation pond through a pipeline installed specifically for that purpose. At the end of the 1't Quarter, 2006, and since commencement of pumping on August 8, 2003, an estimated total of approximately 1,156,960 gallons of water have been purged from TW4-15. 4.4.4. TW4-20 Approximately 39,360 gallons of water were pumped from TW4-20 during the Quarter. The average flow rate from TW4-20, when the pump was pumping, was approximately 6.0 gpm throughout the Quarter. The well is not purging continuously but is on a delay device. The well pump is set on a water elevation device. When the water reaches a set point, the pump tums on until the water level drops to another set point. The water is directly transferred to the Cell 1 evaporation pond through a pipeline installed specifically for that purpose. Since commencement of pumping on August 4,2005, an estimated total of approximately 882,160 gallons of water have been purged from TW4-20. 4.5 Daily Inspections Denison has submitted an Operations and Maintenance Plan, Chloroform Pumping System, White Mesa Mill, Blanding, (Jtah, Revision 1.0 to UDEQ for approval. Upon approval of that plan, the Mill will commence documenting its daily inspections of the operational status of the chloroform pumping wells on the daily inspection form, an example of the form of which is attached as Tab M. 4.6 Operational Problems There were no operational problems reported for this period. I I I I I I I I I I I t T T I I I I I 4.7 Conditions That May Affect Water Levels in Piezometers No water was added to any of the three wildlife diversion ponds during the Quarter. 5. CONCLUSIONS AND RECOMMENDATIONS The water level contour map for the Quarter indicates that effective capture of water containing high chloroform concentrations in the vicinity of the pumping wells is occurring. Between the first and second quarters of 2008, the chloroform concentration in well TW4-20 increased from 13,000 ttdL to 30,000 pgL, the concentration in TW4-21decreased from 390 ltglL to 160 1tglL, and the concentration in TW4-22 deueased from 1,400 ltglL to 1,200 1tglL. Fluctuations in concentrations in these wells are likely related to variations in pumping in TW4- 20 and nearby wells, and their location near the suspected former office leach field source area. 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), indicated these wells remain outside the chloroform plume and thus bound the plume to the west and north. Chloroform was not detected atTW4-25 and was detected at a concentration of less than2 pglL atTW4-24. Continued pumping of TW4-19, TW4-20, MW-4, and MW-26 (TW4-15) 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. The chloroform concentration at downgradient well TW4-6 decreased from 52 to 2a pglL. Although fluctuations in concentrations have occurred, this well has likely remained outside the chloroform plume due to a combination of 1) slow rates of downgradient chloroform migration in this area due to low permeability conditions and the effects of upgradient chloroform removal by pumping, and 2) natural attenuation. Chloroform remained non detect at downgradient temporary well TW4-23. Both TW4-6 andTW4-23 bound the chloroform plume to the south. t2 IIIIIIIII IIIIrIIIII BOUNDARY _85,',?1-E\)fri gD \v)- t )/\dt \ \\ ltlil rr,rrr-[S[fe ////,/ MW-22o T38S \//-\-_zz MW-20o 0 3000 SCALE IN FEET o temporary perched monitoring well PtEZ-1' 't ' perched piezometer Mw'31 perched monitoring well? installed April, 200-5 fw4-20+ temporary perched monitoringY well installed April,2005 TW4-23j&-- new temporary perched monitoring well.x installedMay,200T(locationsapproximate) \\\ rla Mw-21 tl tl $ \\\\N I EXPLANATION perched monitoring well // tt// --i4\\_-tZ It \l ll\ f wildlife oond 4 ,(//'lt'11 l1 l1 ^lr- 1l gl gl 1l 1l 1l ',) zz 1l 1l 1l 1l 1l 1l 1l gl ;l PtEz-4 -fr-=---.s-:-':: -/'a/'/j'/ PtEZ-5 CELL NO.2 CELL NO.44 HYDRO GEO CHEM,INC. SITE PLAN AND PERCHED WELL LOCATIONS WHITE MESA SITE t I T I t I I I T I I I t I I I I I I Milt - Ca.ouadwater Discharge Penuit GroundwaFr lllonimring Qualiiy Assurance Plan (QAF) F[E[,DDAT'A Description of SamPliag ATg',Aem@Nq1 WTffTE MESA, IIRA,NETJM MI[,N, Date: 2.25.fi7 Eevision: 2 Fage40of4l WATERF&R Redox Potential (Eh)- Tubidity Temperatue- Redox Potential (Eh) Locarion(wennarne) /41,J { f,ffi"'llu*irr*r6r,rr, ,{. 4*" I Date and Time for Purging I "l q -fi f1 anetSampling(if different) *"-*ll1- - Wett Purgins Bqulp usea:lSump or -bailer Well Pump (if other $r* er**1iltil/r6/- l.J . SamplirrgEven, drl',rfro' .-. kev.WellsamptedinsamplingEvent $A pl&utrerl.a i -O - pllBufrer4.A 'y.f, -Specific Condu ctsn..r--1'f - Z-tfrfffiO}t cm Deptlr to Watrer netoreparyur1}Zfl!- WellDepttrryl. # - CasingVolume (V) 4" I[ell:-]-l ----.(.653h) 3" Well: * (.367h) Condu0fitnae(avg)---1 - pEoJ,Water(ivg) Wetl Water TernP, (av il -1--- Redox Poteniiel (Eh)--ubidity Weritber Con A. l-l eey , 14 ,,a. ,^y Ext'l Amb. Temp.(prior to sampling oven q-W- e,,nawalu* lA28 conductanee . - ,r,,,|'LL{ - t"rp"roto* l/. b { Redor Potential {EA$[{-- Tit&iditY -{s Time:-Gal"Purged- Time: Gal. Purged Conductanee- ;; / Redox Potential (Eh)- I I I t t t I I I T I I I I T I I I I IWrll - Grourrlqater Dircharge Permit CrourdwalerMonioring Quality Assurarce Plau (QAF) Date: LL,l7.M Revisiorr-- I Pap4l of 41 Turbidity PumDirs Rate Catculatisn FlowRae(Q),ingpm. i----Time to evactrete ny:gEi4gvolunss (2V) T=ZVIQ= Volume of Water Purged trli/hen Field Parameters are Measured_ Number of casing volumes evacuabd (if other than two) . . . --l If wel[ evacuabd to &5ness, number of callons evacuated - ."..- Name of Certified Analytical Laboratory if OtherThan Bnery LaAsJl .L a lwt TvpeofSmrle Sainnle Taken (elml+) - SriifliloVqhmq (tndieateif s&cr FiltefSd (citcle) Premrv,ativeAdded (cifcle) thdii as eoeclfied below) voch ft)N 3x40ml Yff}IICI, (YI N Nuhienfs {Y) N l00mI Y H.5Or (X N EeawMetals YN 250itrI YN IINO, Y NAII Other Non- Rodioloeics YN 250mI YN NoPreservativeAdded GtussAlpha YN 1-000 trd YN HrSOr- Y N Other(specify) lr,*r*l fui*@N Samplevolume Y@ U If apresenrative is use4 SpecifrTypeand Quantity of Ppservativc: Weather Cond.--Ee$s"-Al'rd I I T I I I I T I I I I t I t T t I I Mill - Crroundumter Discharge Permii Grourdwater l\{onitorirg Qualiry Assurance Plan (QAP) Date: 2,25.A7 Revision: 2 Page40of 4l ATTECEpffiBEg WEIXTE MESA TJRANTT}M MILL F'[ElllD DATA WORKSITEEf EOR GBO{rND ![/I?'ER Descripionof samplingBvent: *!! Gtr'orto r hLanfoTuvr Location(wettnanw)-!j: L- irHl'ilu*r" t /tr,,,r,r(, tlrthLy I Pyert pfrkfu Dateand?ime torPur$ng /r'24'08 . andsampting(if ditrereng b.J,S . til . weu purging Equip usee I$ffn * {ffi{Ilfu,i,u Pump (if other rhan semrtt-b-uatA-{u samplingBvent ChiornfzLaru - Pruv. Well Sampled in SamplingEvent--rd3:F pIIBuffer?.Q -7.i pHBuffer4.0 q.a Speific Conductance*76'. E.-ulfiIos/cm ltlell Depth , .,-. I I i- Depth to WaterBeforePurging--lk!,'Lff- Casing Volumo (10 4'Wen: 5a-ol (.653h) 3" lVell: (367h) condue&ince (avd /fi: ^ pHof writer(ivs),* 4a , trtIelt Water Tern p. (av g--il&--Redor Poterntial (friltr.:f-Twbidity a.t* Ext' I Amb. Temp.(prior to sampling even r)--g-' (.'-- . i t., I conau"mnce I [?3 pH .L,{"{ -t"mp"rut.t" 15. Ll-3 . RedoxPotenti a.rgi--9? L- Turbidity {..' , \._."' Redox Potential (Eh) Time:-Gal. Purged- Redox Pot€Etial (Eh)-I '-r Timq-Gal. Purged- Redox Potential (Eh)- I t t I I I I I I I I I I I I I t I I MiU - Grourdqmter Discharge Permit GrnundwaErMonitoring Qualily Assurance Plan (QAP) DatE: tl.l7-05 Revision: I Page4l of4l furbidity____ <:F- Volume of WaterPursed Wher FieldParametem areMeasured 6C Pumping Rate Calcdation FlowRab(Q), ingPm. I5/60= =----*b Time to evacuatE two casfurg volumes (2V) T=ZYIO= ii r"lln Number of casing volumes evacuated (if other than two) If well evacrnted to dryness, number of gpllons evacuated NameofCertifiedAnalyticallaboratoryifoErerThanBs"r5ylobs t fu{r/ lrtLs-Se*r qF{ ,W Atuen,.,l vtJrsr frt*/X-'i-l l-x6g TvoeofSgmnle Sar[ptre Takeq GqCE) , SriihrileVolume - (inifleatelf athet Filtered (cirde) PftgervativeAddd (qiT.d"t 'thidlr as s{gFfied belowl' VOCs (VN 3xrt0ml YN/HCI, {fl N Nufrieats ff)N 100mI Y 4!P H"SO. tr N HdawNtetala Y69 250hl YN }INO, Y N All Other Non- Radiolosics Y@ 250mI YN NoPreservative Added Gross Alpha Y6I 1-000mI YN H"SO, Y N Other(spccify) {**0"1. Id*,;t @N Samplevolume Y@ If a preserrrative is use( SpecffiType and Qruntity of Pr-escrvative: U I I I I I I I I I t I T I t t t I T I Mill - Crormdwater Discharge Permit Grousdwater Monitoring Qualiry Assurance Plan (QAP) Date: 2.25.07 Revision: 2 ?aee40 of 4l ArTAcHhffiBryS Wfif[TE MESA E'RAI{tr{'M I!trLL TryEI,DDATA DescriPtion of SamPling srlmplllrgF:vent f,{^larufueMl -,nnutt*t.O 7'b - Specific Conductanw--f k'L uilWit}Stcm Depth to Waier Before Putgru&*--69-LL* Conductdnce ltrell Water TemP. (avg)- Locarion{wenname) %/il-,2 * iffiH, initiatsla*w. Dag6anclTime torftwgtng t2. 2 L{. O{ and,Sampting(ifdifferenO L:45:Q3.- Wel pursing Eqnip use& &ffin * y#;r**rrrr*p (if other than senneq&a&{fr:L Prev. Well Sampled in SamptingEve{f/dll:{ pHButrer43 .. 'f.4 - : RedoxPotential (Eh)- weltoepth, f,/-1. 13- Casing voluma N) a" Welk.fr1{Z-(653h) pHof Writer 3" WeIl:--. --(.367h) --Redox Potentiat (gtrl------T-utbidity -weiither con "lA,S9- Ext'l Amb. Temp.(prior to sampling event)-ig:L Timel ltlqf , ,.. Gal.Purged -l(Tiine;---*- G al, Purged, . . conductance }L{}t Condrrctance RedoxPorndar'Gh) 315- 70.j Time:- Gal. Purged- Time:- Gal. Purgcd - (:, RedoxPotEntial (Eh)-RedoxPotential (Eh)-( l':; Volume of We.ter Pumnine Rab Calculation FIowRate (Q), ingpm. t IJ t: I I I I I I I I I T I I I T I I MiIl-GrouarlwaterDischargePermit Date: LL-17.06 Revision: I Groundwater Monitoring QualitJ, A$urarce PIan (QAP) --*"--- Page4l of41 516O= = Time to evacuat& qwo casingvotumes (2V)T=eVlq= ll frin - Number of casing volumes evacuated (if other haa t*r) -- -- ,ailrtd --- - Name of CertifiedAralytical laboratory if otherThanEnergy t*r / * J rt1 " 4' r/L Tvpeqf Spmrle Somule Taken fcircte) SdryileVglune {Indtmtelfofher 4Iltored (drc,IeJ Prrerereative Added (eiTclc)'ftnii ar snecificd hetnw) YOG WN 3x40 mI YIIP\HCI,N Nrrlrients IDN l0Oml Y H'SO, lY N EdawMetals Yc[250frt YN IINO. Y N All other Non- Radbloeics YfiP 25Oml YN No Prcservative Added Gross Alpba YN)1,000 Bl YN H'SO, Y N Other(speciff)Yxr Samplevolrmc Yy If a preservative is used, SpecifyT5rpe and Quantity of Pre.s€rvative: I T I I I I I I I I t I I I I I t I I Mill - Gmunduaoter Discharge pennit Orouadwater Moniforing Qudity Assmance Plan (QAP) Dae: 2.25.07 Rsvision: 2 Page4$ af41 $TT&C.SMENTI WHITE ft4ESA IJRANII'M MT[,L ETEI,D DATA WpBE*$EIEEf, F1OR GtsOUND WATER Descripion of SampliugBvent, .{4"'' (th "o* o . C hlnq Locarion (well name) I/a/V - S - ffi,fh -iti,rrf-*a *11,,4 , PVq^r l*/r,ra DaroandTime tortwgml A.l4-08 anAsampting(if ditrewfi) L.&S ...f $ wen purgingnquip used: &trr* X#:tl-'*"r pump (if oth ertt,unsenne;aJetr$A-frA SamplingEven Pnev. Well Sampled in Sampling Event_Ia{-!, -? S pllButrera.0 . ,'10pHBuftr?.0 , 7rr , Specific Conductance-f{ :-ulldggs/cm wettDepth, /00 -Depfh 0o Water Before Purgi "e_-!1 7 [ j_ Casing Volume (Vy +" W ett: 3 l. / ( . (enAy Oonduetrince tavg\ il* - 3" Well:____*_(357h) WellWaterTemp.(avg)-g24._ Redoxporential(Ehlg_fir*idity Ar&t\ weatlrer cond fufu- Ext'l Amb. Tcmp.(prior to sampting even0-:2..r{:-- conarrcarce-!&L| ps 116 RedoxPotentiat@)-5lJ__ Redoxporentiat(Eh) nlrtidiry---ll5-- Tihe: . . .,. Gal.Purged-__-__--_- .* Time:- Gal. Purged- Time:--- cul. p*g"d_ L], RedoxPotsnrial (Eh)__RedoxPotential (Eh)- t t: I t I I I I t I I I I I I I I I Mill*GroundwaterDischugepermit Dare; ILJ?.A6 Revision: t Crroundwater Monimring Quality Assurame Plan (QAp)Page4l of4l Tfdiditv ---'-- Voluneof Waterh*ged Pumoine RafE Calculatipn FlowRat€(Q),iagpm" /S/50= = h Time to evacuate two casingvolumes (2V)T=ZV(A= ll 4 - Number of casing volumes evacuated (if other than two) ,._, If well evacuated todrynesq numberof gallorrs eyucuutcd **---: - Name of certified Analytical Laboratory if ottrer Than Energy Lubrffif oFF-to ilrweriu"! uh>r fi,r*/j-,iJ L.rlg Tvneof Ssmplq SaqrIe Taken(clftt t . SiiE Jqlrolume findlcatslf o&er Biltofe{ (cifcle)Prys.+rativeAdak4 fcircle)'thtifi as.gncelEed belosv) VOCs Y)N 3x4Oml l'6y.HcJ-NNuEients&lN I{X}ml Y6E HrSO/}Tt{HeawDfEtals Y ftI)250hI YN HN& YNAII Other Non- Radiologics Y6)2.50r,[YN No Preservative Added 6ross Alpha YA9 I.000 mI YN Hz^SOr Y N.AP N Sampli volume Y& Bapreservative is usc{ Specify"ype and Quantity of Preservative: I I I I I I I I I I I I I I I I I I T Mill - Groundwater Discharge Permit Groundwater Monitoring Quality Assurance Plen (QAF) Date: 2.25.07 Revisior: 2 Page40of 4'l r.ocation(weilname)--jl1 :LL- *r#ilu,ritars -re.r.r ll'll;,lril +. fiU ?,Jw DateanrlTimeforPurging -a'}|-vZf andSampling(ifdifferen$ L:.}S-Of, -?rrlt 5f,.rnPlL Well Purging Equip Used: $-pump or :s bailer Well Pump (if other Sran Bennet) C"r,,^ot S-s SamplingEvent 4h\,'."Srg . Prev.Well Sampled insamplingEventJwyil Description of SamPling ptr'hutrer7.0--1-'O.pII Buffer4.Q ql" 0 SpecificConductance '(6-Lunraroycm Wennegth , llLl .S Deprh to Water Before Pureing---rt9*L?:-- Caeing Volume ,"lf #r1:}}5]=!g;ly Conductdnce (av$W pHofW:iter(ivg) , N/A "- Well $/ater TemP . (av s) -&.,&-Redox Potentiol fehfu/Aru.b iairy Al/fr. !ffeathcrCond. 5ro*.."rh e ]n,.r[s- Ert'lAmb.Temp'(priortosamplingevent)-6-[iA coodu.tun* -}L{Ll4 - conductance , ,;. ,u b.L{ - T"mperatur" -. i\.\A 'r*tout*, At f 14 RedorPoteotial Gh) ) -q:]-- Redox Potential (Eh)- TubidE }jI Tutbidity. .t *i' -f '. r WHITE MESA {'RAN[{'M MX}.T, Time:- Gat. Purged- Time:-Gal- Purgpd- Redox Potential (Eh)-RedoxPot€ntial (Eh)- | .'i I I T I I I I I I I I I I t I I I I I MilI - Grourrhmter Diseharge Permit Grcund rvater ldonitoring Quality Assuraace Plan (QAP) Date: ll.i7-06 Revision: I Pap{t of 41 VolumeofWaterPurged?l/henFieldPararnetersafeMsaswed. Lt - PumpingBate Calculation FlowRate (Q), in epm.S/ff)= = -.- € Numberof casing voluoss evacuaed(if otherthan two) ff well evacuatsd to dr5mess, number of gallono evacuated Name of Certified Analytical l-aboralory if Other Than Energy Labq I5f,6":"'* iT"'frtr -1T ""1 lYre of Scqlrlq $lamnle Talien(clftlel SiinrllqVolume findicete if other Fil@reil (circlel Piesemative Adtled (eif4e) --..u_-=_ VOCs N 3x4Oml Yrm HCT,N Nuuients ff)N lqlml YN)EI"SO, TY I N }Iriawlfietals Y &IT 250hI YN III\fO. Y N AII Other Non- Radiolosics Y qg,/2508I YN NoPteserva$ve Added Crross AIPha Y&,1.tr10 ErI YlR TI*SO, r Y N Other(specifY) f*nefa\ fxorfuar,irat aN Sampldvolume YQ,l el If aprcsenrative is use{ SpecifyTypeand Quantity of hesenrative: I I I I I I I I I I I I I I t I I T I Mill - &oundwalerDischarge Permit Grouirdwafier Monitoring QualiEy Assurance FIan (QAP) Date: 2.25 -O? Bevision: 2 Page4oof 4l AT:TA.CX{&@T.IE'1 WEffiTts MESA [.IR.ANTT]M M&,8, FOR DescriPion of S arnPling Locarion(warname) L[:5- il#r'ilu initiatslantaLtatt',.\ r tyar f*lueL. Date urd Time torwslng A'il 4' A8 *na.saryorrns $f ditrerent) L' J.<' 4iJ1 welt purging EErip use& NrKn -r X#r!!r*al Pump (if other than BrrnatkhatA-fis SamplingEvarr ehlnc^rotx - Ptev.WbllSampledinSamptinsBventgalk(( pttButrer?.0-----J,/) SpecificConductance'2L'F -uMllosi/cm WellDeptn . .l?'l'75 Depth to Water Beforc Purgine-lgJg- Casing Volume,rrf ,;1il,,il}:g;ii, Conduetdnce @vg|, ile - Welt Water ?ernP. (av $-,u l+-- pHufWilw(alvslr'Y4 RedoxPotential &$ am f*idtty att. Exf I Amb. Temp.(prior to sampting evon03-t4r:- conducance ll7{ / -_pH b- f S RedoxPoEntialfs$ J-gg-- Timq-Gal.Purged- Tims 6al. Purged- Redor Potential (Eh)- t ..' ( .,; RedoxPotentiat (Eh)- Redox Potential (Eh)- I IJ I I t I I I I I I T I t I t t I I Mll - Grouudssater Discharge Permit Broundnoter Monitoring Quality Assurance PIao (QAP) Date: 11.17.06 Revision: I Paga4l of41 VolumeofWaterPurgedWhenFietdPasametersareMeasure, 9(\ - Pus8ing Rate Calculation FlowRate(Q),ingpm. I5/60= =- L, Time to evacuate two casiqg volumes (2V)T=ZViQ= 15 nn;^- Number of casing volumes evacuated (if other than two) lf well evacuated to drymess, number of gallons evacuated Nareof ccrtifiedAnalyticallaboratoryif otherThan F-wreyLabs /. Sa{ r/ 1/u]. <,,*r ap{-to Arrnnfirl y+htr flt*/X-i*'l Ltrf,s Tvne of Sample $aqole T"kgU (clrcle| $riihiileVoJume (tudicute if other Filbred (circle) PreserrffveAdded {circle) vo(k N 3x4{lml Y6f/,HCL {V N Nufricuts ]N t00ml Y fi:A HrSOr ffJ N HdawMetals Y1I0 230tfrl YN Hlt[Or Y NAII Other Non- Radiolosics YCIi 250mI YN Nohescrvative Added Gross Alpha YAS l.fllOsI YN HrSO{ Y N Other (spccifY) /**e"l fix*,tit< ryN Samplevoluue v& If apresewatira is uee4 $pecifyTypeand Quaffity of Presenrative: U I I T I I I I I I t I I I I t I I I I Mill - Grouadwater Discharge Peirrit Groundwater Monitoring QueliEy Asstrrance Plan (QAP) Dale: 2.25.U7 Revision: 2 Fage 40 of4l Arr'&aE{IldEsT I WHINTE MtsSA {IRAI\[[{IM MXT,E, ETEI,B DATA WSRKSHEET FOR GBOUND TryATER Description ofSamplingEvent Aid Gt apr* rt Locarion(r"rroam") ....-t{:G iffililc initiars/tonnta ttotl!{*&tu-&h,a- DateandTimeforPurging A'.:1,4' 08 andsampting (it dttteffifi,, L. J$ . lL - welt purging Equip used: XHffi rrXrffgf'ft"lPurnp (if ofirer than seffie0Jrtrarg),f& Sampling Even t, Chlnr,{,nt* pHButrer?.O 7.O - Specifi c Conductance-f 6--2,*unfitoslcm krev- Well Sampled in SamplingEve$rs!-5 pHBuff"r4o ..'{.d - WellDepth . LQ-0 -Deprh to rJfatergeroru Purging-75]3- Casing Volume (V) 4' Wetf-l'tl-(.653h]3'Well: .(.367h) Condrie&mce (avg\ ilt . - pHofWriter titv$.i/,/A - Wcll Water?emp . (tvvl-at*- RedorPotentiat ehl ,"4* idity afi WeatherCond-.Exf I Amb. Temp.(prior to sarnpling event)-S" c '- prr . [..f]3 femperaturej?.Lt? - tt*"r-::al- Gal. Pureed-}g-- conarctanee 36Sj Redox Potentiat (Eh)*- 3(8.-Redox Potential {Eh) Turbidity, Time:- Gal. Purged Time:- Gal. Purged- ( l'; Temperature- Redox Potsntial (Eh).-..-- I t I I t I T t I I t t I I T t t I t Mill - Grouadumter Discharge Permit Groundwater lfionitorirrg Quality Assurance Pltn (QAP) Date: 11.17.06 Revisioiu I Pageni of 47 Tlfuidity-- -/Turbidrty*__* ,---:- Volume of Water Purged When Field parameters are Measured . jt = Pumoine Rate Calcul alion FlowRa&e(Q), iagpm.$/60= E- b Time to evacuste twq casing volumes (2V)T=2V/Q= C pri," Number of casing volumes evacuated (if other than two) If well evacuated to dquess, nunftor of gallone evacuated Name of Certified Analytical t-aboratnry if Other lhan Energy Labs. to Ant tirl llnr < -\e*f aFFWhsr'fr**/X-iJ laA* Itne of Samnle Su*plE Eakct(circi6) , Sriihile,Vqlume finffcateif other Ffltered (circle) Preeerrative Added fdrsle) vock (Y) N 3x40ml Y@ HCL N Mtrients $)N t00ml Y@ H*SO. 1[J NIIeaw hfctals Y(6)250'fri YN m.rc' Y NAll Other lrlon- Radiolocics Y6'}25Oml YN NoPreservative Added GmssAlpha YAO I.000 mI YN II2SO{ Y N O0rcr(spccify) *wul Eoa,;.t UN Samplevolume Y& Ifr preservative is used, Specify?ypaand Quantity of Preservative: U, t{2& I I I I I I I I I I I I I I I T T I t A3r'aa4&4q,4ffi1 WEfiT'E MESA ITRABMUM Ef,M,L F'rcT,D DATA, WORT$EIEET $'OR. GEOIJhID WAT'ER DescriptionofSamplingEvent:.#,"i1 Ge*o.*o C,}l,aooftOvt* - Mill - Groundwater Diseharge Femnit Groundwater Monitoring Quality Assurance Plan (QAP) SamplingEvent Ckhr^AW * plIBuffer?.O 7,{) - Specific Condu"t^"r.-46.7 rrWostr^ pn. 7-d s . t"*pr*t* /{'02 - Redox Potenriat feD-_l-{ 3-- Turbidity 65 I Date: 2.25.M Revisioa: 2 Paga40of 4l Location (well name)-*- 7 DarsandTimeforPurging A':14'08 a*sampling(if ditterentl L'&< 't4 - Weu purging Equip used: EW, ,r X#ri{!6*a Pump (if other than BenneghtuuAdag Prev. Well Sampled in SamplingBvent-Idq -.-l pHBuffer4.0 .q.0 Welt Depth l}.l - Depth to WaierBefore Purgrng bfi-13- Casing Volume (V) 4" 1trelh 315&--(.653h)3"'llllell: ('367h) Condueance (av$l il*- .: - pHofWriter Well WaterTemp ,(avg-atfr--_ RedoxPotential @h) nf+ Tlrrrbidity ru'? tlfeatherCond..Ext'l Amb. Temp.(prior to sampling eventl-583J-* Sampler ,- NamL and in iurstlr,arrr a ttrtt,t ^$, Qy d,t P*lurA BedoxPotential (Eh)- Turbidity Time:- Gal. Purged Time:-Gal.Ptryed- Redsx Poteffial (Eh)-Redox Potential (Eb)- Mill - Groundwater Discharge Permit Cnoundwoter Monitoring Quality Assurance Plar (QAP) Date: 1L.17.86 Revision: I Pagefil of4l Volume of WaterPurged WhenFieldParameters areMeasured 7?. - Pumpin$ Eate Calsulatips FlowRate(Q), ingpm. I5/60= = 0 Turbidity <F - . Time to evacuafe iwo msing volumes (2V)T=ZVIQ= ij). A:. ___ Number of casing volumes evaflated (if othet than two) If well evacutted to d4ness, number of gallons evacuated . . Name of C,€rtifiedAnalytical Laboratory if OtherThan Energy Labs.w Aurri,,l l/ar'< 1**f aFFrttrr$"ib-;J lx*< Tcnc of Srmnle Snpple T4pu(cirtle) SihdlgYo.tu+e(lndicq&if ofter Til,teqg(4rcte) Preserrefive Added (ciqcle)'erifieg specifierl hetow) VOCs nlN 3x40ml Y6P HCL A N NuEients tr)N lO0ml Y tfo H"SO, n ,N HiawDfietals Y([p 250ht YN IIhIO. Y NAtl Other Non- Radioloeics Yd,.)250mI YN NoPreservative Added GlossAlpha Y /!0 1.0t0Oml YN E-SO, Y N OttrerGpecifY) l*p*a^n frraanLt rylN Samplivolume Y&@ If a preservative is used, Spec$Typeaud Qrantity of PPservative: U,, I T I I t I I I I I I I I I I I I t I Mill - Crotmdwater Discharge Permit Grouadwater Monimring Quality Assurance PIan (QAP) Date: 2.25.aT Revisios: 2 Page(Oof l,l ATT'ACHMEI{T. 1. WfiTITE ME$A {JRANEUM M[N,E, FTEI,D DATA WORKSHEE*T E OR GROT}ND WAT'ER DescriptionofSamplingEve*: .*!d (']t aorr fi - Chl Location (wennatret IN4 - * f,XHl'llr*, ias/kan*r tlotLio , tyur P*ked- DareandTime forPurgiug A'14' 08 and Sampling(rt ditrereg b'3$' l* - weu purging Equip use* Nrff, ,, lffi:I'r*ll Pump (if other tnan Benna0JsurtA-{'n SamplingEvent thhr^foO-* prev. Well Sampled in SamplingEventfa.r {:'14 pHBuffer7.0 ......... 7-l) -. Specific Conductur""-?L E*,rtr,ttOSl"t Depth to Water Before Purgine-I=g*8 q- wetlDepth , t,2 L. - Well lltrater Temp . (xv e\*at&.- Casing Volume (V) 4" IJVelt: 3-1. i -4 (.653h) 3" Well: -(.367h)pHof ltrriter Redgr Potentigrl tElh) U4 turbidity ry4,,. Redox Potentisl (Eh)--J-[J--RedoxPotential (Eh)- Turbidity( f(5 WeatherCond -Ber}]ylllzrd\|- Ext'l Amb. Temp.(priorto sampling "v"n0-]1'L-- Con&tc&lnce ('. r condustnnce 31ff _- PH 1.Jg * Tima:-Gal- Purged Time:- Gal. Purgpd- (iRedoxPotential (Eh)-RedoxPotential (Eh)- I I I T I T I I I I T I I I I I I T t Mitl - Grounduater Discharge Permit Date; 11.17.05 Revhion I Groundqmt€r MoniiDring Quality Assurance PIaa (QAF)Paga(l of 41 Turbidrty----- -/Ttxbid*y--- --' Volume of WaterPurgrd .iilhenFieldPararrcf€rs areMeasured. 7}- - Punrping Rafe Calculation FtowRate(Q), ingpm. /5/60= =--E Time to evaeuats_two casing volumes (2Y) T=ZVIQ= l]- Number of casing volumes evacuated (if other thau two) If well evacuated todrynes+ numbarof gallons eyacuated Name of Certified Analytical Laboratory if GlrerThan BnerBy -to Tvpgof$Fmnle Samule Talien (clrcle) Siiiirrile Vqturye (indlcate if ofter Filtered(cirrlel PreserJrntive Added fcirsle)'&iiit as roecified helowl VOCs tr)N 3x4Oml Y 6f/HCT-N Nuftieil$&)N tmml Ytw IIr.S-Or $) N HriawMctals Y 6{)250bI YN IIT{O. Y NAII Other Non- Radioloeics Yg)25Oml YN NoPreservative Addd CnossAlpha Y4$I.Omml YN ILSO, Y N Other (specify) /rrt*erl- fr$ca,ti-\ '&N Smplivolumc Y& If rpreserrrative is use4 SpecifyTlpe and Quantity of Pleservative: "r-- u., r //ts I I I I I I I I t I I I t Milt - Groundwater Dischmge Permit ffmunduater Monitoring Quality Assru'ance PIan (QAP) Date: 2.25.W Revision: 2 Pag40of 4l AEEACE@NE-T V{MME MES.q, UR^ANE{IM MI[.N, E[E[,D DA?A WOHKSTTEES F1OR GE(}UND WASER Descriptionof SamplingEvent: -,A-dd Al,*o*o - C hlw Lncation(wellname) L\ -q - ffiIilc rlnrttats/tr,,twttt,,t/;;.t^{ t Zy*r P*lre* DateandTime farYw$ng L'14'08 andsampting(if dtfr.lr;rrrl L'38 '14 welr pureins Equip used: XHrl', * f#i!!"** Pump (if other rhan Bwnel-hituL-frs SamplingEven*hltmf00.^ - Prev.WellsarnpledinsamplingEventjtlg*),3 pHBuffer7.0-----34) SpecifrcConductance. 79..'f u[4HOS/cm WellDeprfr,. l]t .]] -Depth ro Warer Before Purging-s2j5- Casing Volume (V) 4" Wen: q5 '1.1 (.653h) 3" !ilell:-J.357h) Con&ieunce (avgl 4* = pHolWriter (wd.,. ft4,- Well WaterTemp.(avu\-Jt/+.- RedoxPotential &t> at* f*idity a'e, p Temperature l5 f() tyeathercond. Pr"ltt tt"Y$" Ext'l Amb. Temp,(priortosarnplingevent)-25](" fi rretg 5 !,- cal. kuged--G-&-- conductancej- l . Redox Poterrtial CU-}}$-Redox Potential tF.hI ro*iaitv W@ L{=}8 Turbidity Time:- Gal. Purged- Timq- Gal- Puqed- RedoxPotential(Eb)- RedoxPotential(Eh)-= ,,' I I t I I I t-j; Titn* .,- Gal. Purged------:* I I I I I t I t I I I I I I I I I I I Mill - GroundwaterDischarge Permit GmuudwaterMouimring Quality Assurance Plas (QaP) Twbidtty----- { Date: 11.17.06 Revision: I Page 4l of 41 Ttrbtdtty--_-_-*- Volume of Water Furged When Field Parameters are Measured-ru1 PumugeBgts.Cahladen FlowRaE(Q),in$m5/60= =- b Time to evacuflte two casiqg volumes (2V)T=ZVIQ= 15 l"in. Numberof casing volumes evacuated (if otherthan two)_ lf well evaeuafsd to dgrnese, number of gallonsevacuate{_ NameofcertifiedAnalyticallaboraroryiforherThanh.rwLtus I *r11 ?/u|r-St*r oF€'to ilnwrrirr^"! wh>{ fri'*/X-'iJ L*6s TvpeotSample Sqmple TSken fqit'da) SriihrileVo,hme(lnilicoteif oflrer Filtere4 (circle) PresewativeA.ddeC (pBsle} fhdif as.-Eppciff,sd helow) VOCs }N 3x40ml Y6f/+ECI. /YJ N Nutrienis .)N 100ml Yrp H'Sor ff./ N EdawMetals Y (fiil 25Oinl YN IN[O. Y NAll Ofter Non- Radioloeics Y @ 25Orml YN NoPteservative Added Gross Alpha YAT t.000ml YN HISO, Y N Other (specify) 1***l- Earq^di.-\ -CPN Sample volume :---- Yde @ If apranervative is used, SpecifyType and Quanfity of Preservative: *l- bqqt - t t I t I I I I I I T T I I I I I I t Mill - Grouridwater Discharge Fermit Oroundwater Modtoring Quality Assurance Plan (QAP) Dats: 2,25.07 Rsvision: 2 Page4A ot 4l /af-T'ASnm@NTI WHETE MESA. URAit{[tJM Mff,L EEEI,D X}AT'A WORKSHEET FOR GBOIJND WATER DescriptionofSamplingEvent: Ano! fi,tfiarro ChLnoa Locarionlwen narue) Li-l[).- irlflorTlo* iaarfir*o H,tt;!t^,, , P,far P*lwd* DateaudTime torWgng A'.L4'08 andsampling(if ditrerenrl L.&4 - lA nrell purging Equip use& #rffo ,, lffi:41-1vreil Pump (if other ftan Berrnet)-h-tuul-dw. SanplingEvent Chhrnfu&& Pmv. Well Sampledin SamptingEvert Tt!g:)\ pllBuffer ts 7.O . pnBufifer4.o 'e{.0 : specificconductance-f4 f*u&firos/cm wellDepttr.. . Ila - Depth to Water Beforc Pursi"s-5i{-31-- Casins Volume,*rf #;t,;}*.r.!frfl|, Conducetnce'(avgt .. ilr+ - pHoJryi16r(ave) . l/4 Well UlaterTemp.(ave\--aL&,- neAoxPotential ffl,t ttr* t*idity at'* WeatherCona.-Ea.tL,+-eto"ag- Ext'l Amb. Temp.(priortosamplingeve*t-3!'{ conauctaece JJl0 RodoxPotentialtgD-3$- RedoxPotential(ffi)- t'? tt Time:-Gal.Purged- Time:-Gal.Purged- Redox Poteutial (Eh)- L:; Redox Potential (Eh)- I I I I I I I I I I I I I I I t I I I Mill - Groundwater Discharge Ferait Cmundwater &fonitoring Qnalify Assurance PIaa (QAP) Date: LL.fi .AS Revision: I Pagefil of 4l furbidity , ---- __ Volume of WaterPurged When Field Paramebrs areMeasured 7# - . Pumpine Rats P&lculation FlowRats(Q), ingpm. /S/6{l- = 14 T =ZYIA= l?Time to evacuate two casing volumes (2V)3/60= = Numberof casing volumes evacuated(if o&er than two). If well evacuafed to &yness, number of gallons evacuate,rl . . Name of Certified Analytical Laboratory if Other Than F-rere1 l-absJ*fu_a-to Antarri,rl l/n, s \t*f at{frrrrm-lfiJ l-xes TvoeofSsmple $aq& Takcn feit'clE) SiindleVolume - findiuteif ofher filtered (circle) P,rpqerva€veAddcd {giTcle}'thtiil as 4fistl lrelow) YO(h {vN 3x4tlml Y&pi E(x,}N NutricnB tr)N l00nt Y/fiD II"SO,IN Edawtrrleals Y d$)250hI YN I$ilo. Y NAll Othgr Non- Radiolosics Y6)250m|YN NoPreservatirrcAdaH GrossAlpha Y /!$I.fil0ml YN H,SO. Y N Other (specify) f"f,*bL ,Enrqaait-s -ryN Sampldvolume Y@ If a preservative is us€{ Spec$Typeand Quantity of hescrvative: -TU. I I I I T t I I I I t t I t I I Mill - Grouaduater Dirscharge Pennit Groundwater Monitoring Q uality Assurance Plan (QAP) Date: 2.25.V1 Revision: 2 Page4fiaf l,l arqA,pEIMENT I UIIITTE MESA ['RAh[I{IM &f,ILI, EM[,D DASA WOEKSHEPT S'OR GBOUNI! WA,TER Description of SamplingBvent:.0, not fii *oIs rt Chlao+fo|uvt Location(wellname)...-. Ll- ll ffi:'il, niaas/t,,qttrrt ttoil;,I,:i , Eye,t P*lwd* DateandTimeforPrrrging A',L4' Oil and sampling(it ditrercnq L.J'S' tll well purgingF4uip use& Mff, * Xo#l?V*.rl Pump (if otherthan s..eir,ne\lslls)-{e SamplingEvent ehlxnfu|.,tx -. Prev.WellsampledinSamplingEvent-fra1L( pgBuffer?.0 7-1) pHBrtrera0----Jd.0 SpecificConductnw-9'8.7 .ulvtrIoS/cm WellDepth. lQO - Depth to Watcr Before Purern&_ta,Al- Casing Volume fif) 4" Well: e$t { (.653h) condriemnce (avsj , il4 - p*oflilrier a"rr'' Il*--*G** $re[ Water Temp (N*--al /+--Redgxp6lshtial6;h|. 4/*'twbidrty at4 WeatherCond.cl"oud ,l' Ert'l Amb. Temp.(prior to sampling svent)-3e. ' '- remperotur" 15'66 - Redox Poentint (Eh)--1-@ Redox Potentiat (Eh) TurbiditY AA.1 -Timq- Gd. Purged- Time:- Gal. PurEBd- RedoxPoteotial (Eh)( .:i t I I ConCucmnoe. ,,iO74 - RedorPotential (Eh)- Mill - GrouadwaterDischarge Permit Grouudwaret Moaitoring Quality Assurance PIan (QAF) Date: 11-17-06 Bevisiou I Paee4l af41 Volurne of lVater Purged trilhen Field Paramef€rs are Msasured q B - P.umping Ra.tg Calculation Flow Rate (Q), in epm. t5/60= =-b Time to evacuateturo casirw volumee (2V) T=ZVIQ=ll *iyt Number of casing volumes evacuated (if other than two If well evrcuated to dryness, number of gallons evacuated Name of Certified Analytical Laboratory if OtherThan Energy J i-rd* Tvroof.Ssmole Sqmp,Ig TokeT fcirda) ' SiinnhYqlu+e dndicete if other Filtered (g!rcle) Preservative Added fclrcle)'tttiii as Epecified helow)' VOCs {Y) N 3x40ml YW)H(x,,|N Nutrictrts tr)N t0tlmt YI@ H,SO. /L, N I{iawSfctals Y dfj 230frt YN HN(}YNAll Other Non- Radiolocics Y6[}250ml YN Noheservatire Adaled Gross Alpha Y /h0 1.000 utl YN ILSO, Y NWNSmpldvolumeYN If apaservative is use4 SpociffTypeand Quantity of Preservative: I I I I I I I T I I I I I I t T I t I Mill - Groundwater Discharge Permit Groundwater Monimring Quality Assurance Plan (QAP) Description of SamPling Date: 2.25 -A7 Revisiou 2 Page4CIof 4l Location(well name) fdY- / 2- *#ilr- *iatr(to^,rrt tlott t:i r EYu,P*h'eL DareandTime nrnxgrng A',24'08 .-- andsampling (if ditrercnl b'J*E'tf1 / welr purging Bquip use& Nrffn ,, fful|t'*4 pump (if other than Bemetilsudd-fre SamptingEvent ehfuafOg* - Prev.WEllsampledinSamplingEventi!4g(L3 plfl^Butret? -A*---3'A pllButrer4o--go SpecificConductmw:9t8-'? .uwtoycu wettuepth, /dl. S . DeptrrtoWaterBefoep"rer"es4=4.1-CasingVolumerrr*"#_?l:.+;1li:#l Conductdnce (av}:t ilt : Wolt Watcr TemP . (wg -41&-- oHofWdter(ivd, nlA Redpr PoEntial (ih, /t//+ Turbidtty 44 weathercord -f ,fl- tl' - Ext'lAmb.Temp'(priortosamptingevent-?3i:- Redox Potontisl Ch)-ti0J- Redox Potential (Eh)- l').f, aETACEmflENTX WffiETE MES.A [.'RAII[TT]M MILT, fim",- Gal. Purged- Timq-Gal. Purged Redox Potential (Eh)- tj:;Redox Potential (Eh)- I l: I t I I I I I t I I I I I T I I Mill-CrouslwatelDischargePermir Date: LL.|T.06 Revisioir I Groundwater Monitoring Quality Assuance Plaa (QAP)Page{l af 4l Ttxhidity- ,.-{- T*b66y__t: Volumeof IVaterfurgpd Fumnine Rate Calculation FlowRate (Q), ingpm.$/60= =------_l , I gpa. 1 Time to evacuate turo casing volumes (2V), D T=2vlo= 14 Numberof casing volumes evacuated (if o&erthas two) If well evacuaEd to dqmess, number of gallons evacuatrid -.-al NameofcefiifiedAnalyticallaboratoryiforherThanenerwl*s / :furr/ 'lkr js St*r oFfW Aurri,"^! tiL>r fl*x/X-'iJ /:re< IYreofsaurole $qr.nple Takqt (circle) SriinrileVqlumq 6ndieateifother I'iltered f4tde) Premluative Added (cl+de)'ftriili as specified below)' YOCs ff)N 3x40 ml Y6PT ECL 7N NutricnB ff)N l00ml Y 1TE tLSOr /N EriawlVletals Y rtrI)25AfrI YN II}i[O. Y NAll Other Non- Radioloeics Y6)25Oml YN No Prreservatirre Added GrossAlohr Y69 t.000ml YN H,SO" Y N Other(spscify) /**e"{l -laarsa,i>< .UN Samplevolume Y& If apeservative is used, Specify$tpe and Quantiry of tneservntive: 'r-- { - Mill - Groundwater Discharge Penrit Grouadwater l\4onitoring Qurtiry Assurance Plan (QAP) E'TE[,DDAT' DescriPtion of SamPlirg Daie: 2 "25.A7 Revision: 2 Page 40 of4l ATT'ACHMEI{T1 WffiETE MESA IJRANTUM M[LT. Location (weu name) f$"/{:l. . i,ffiXtllu* itiats{,,,vtrr tloll;{*o , Ey+r !*lucrL Date and Time for Purging /-':l-'4' 0g urrd Sampling (if ainercnrl h'35 " ltll r/rell purging Equip used: ,Hft * Xr#"?V*rupump {if orher tt,,n1e*eilh!)Md-{& samplineEvenr clrtrnrro4$ prev.wen {#ffiinffis**-gl*it- pHBuffer4.0.tl.0pHBufferT.Q -7.rt specificconductance-76'.E*uufiIoslem weltpepth - - Jd S' E- Dep& to water Batorcrrrynl--!9*31*- casing volume ,"lf #ril1ffi!$fll, conductdnce (av$ il* - pnofwater(avy),, azc - weltwaterTemp.(avet-sr&- Red.pxPotentiat &r ru* r*dity at* - WenherCon l. S Z, nLa . ExflArnb.Temp.(priortosamplineevent')At-" * Redox Potcntial (Eh)- conuuctua"". .l4L\L p t"mp"ratur" l5 iL\ -Redox Potenti"r fru-$Q!.-- Time:- Gal- Purged-Time:- Gal. Purged- f ';Redox Pot€ntial (Eh)-Redox Potential (Eh)- t I I I I I I I I T t t I I I I I Mill-GrouadwaterDischargePermit Date: 11.17-AG Revision: I Grouudwater Monitoring Qnality Assurance Plau (QAP)Page 41 of41 Volume of lVaterPurged Pumping Rate Calculation FIowRate (Q), ingpm. ts/fl)= L b Tiuc to evacuate two cashg volumes (2V)T=?YIO= I ) - Number of casing volumes evacuated (if other than two)_-T-- If wpll evacuated to drj'ne$s, number of gallons evacuahd .l- Nameof certifiedAnatyticalr.aboratoryifothcrThanBnqwLabs l, <zr d/ l/u.',. \t*t ot€'to Autd*,! wlt'r fr*'+/X-'iJ I.tAE TvoenfSample Sam,nIe Taken fdrel6) . SriihdeVo.tqg (inrlicate If other r.hriit as smciEed Elliered (circlel PregervafiveAdded (cfrytle! below) voch N 3x4Oml Y6I/6 HCL N Nutricott ,)N L00Et YrP IIrf,Oa ,N IltiawMetale Y d{$l 254tut YN HNO- Y NAII Other Non- Rndiolopics Yo,25Oml YN NoPreservative Added GroseAlpha Yd$I.0mml YN HzSO. Y N O&er(speci$) {a*atr- firre*iz\ -&N Samplevolume Y& If aprcservative is used SpecrfyTyp" and Quantity of P.raservative: U. Mill - Giouadwater Discharge Pennit Grourdwater Moniauring Quality Assurance Plan (QAP) Deseription of SamPling Da,rl 2.25.07 Revision: 2 Page4.O of 4l ATTACHMEIqS T WEffiTE MESA T,RAI{IUM M[L[, r,ocarion(welrname) t.rq- l--rl f,ffi:"tilrin iua*ltntto,ttrtt;fi+ r Eyu P*lwL DateandTime to*wgtng !.'14'08 NtdSampling(itdittercn1 {r,:JS 'lil -1tre1 purging Equip use* Nrff, * l#!!**rtt pump (if ogrer tlan BeffieqJstut$l 6* SamplingEvent C,hteof-4!e*nt - Prev. Well Sampled inSanrylin1Bvlilt-Tlzut' /3 pnnufer7.0 7-O - pHButrera-O '?.0 SpecificConductance-76. f-ufufiIos/cm WetlDepth i2l . 3 3 Depth to Watern"f*, P*e*e--*A,q-86-- casins volume ,lf -X;1:16s=.,:[|f,1, Couducta'nce(wg .4ft : pHoJWriter(irvg) " zua --- - Well WaerTernp .(avg)-al&.- RedgxPotential @tl nn f"rbidity at+ Wedther Cond.- E:rt'l Amb- Temp.(prior to sampling event)------j* Tine:--Grl.Purged ,-^ndrrnt.tnce RedoxPotrntial Turbidity. (:, Tihe:.-------*--Gal.Purged-----'* RedoxPotential (Elr)- Tlrrbidity Time:-Gal. Purged-Time:- Gal. Purged- Conductance Redor Potential fijt).i ";Redox Potentiat (Ett)-*- I t I I I T t I I I I I t I I I I I t Mitl - Crouadwater Discharge Permit Gmudwuter l\4oaitoring Quality Arsurance Plan (QAP) Date: 1"L.17 -06 Revision: I Page4l of41 Turbidity Turbidity___ -=-:-- Volume of Water Purged !ryhen Field Parameters are Measurerl Pumpiqg R4ts Cplculation FlowRate(Q), inEPm. 5/60= =h Number of casi4g volumes evacuated (if other than two). Time to evacuate tvo casing volumes (2Y) T=2VIQ = 7 - If well evacuated to dqmess, number of gallons evacuated _ Name of Certified Analytieal Laboratory if Other Than Bnergy l-abs I *Ltw Wrti:G 'l/ar', \**r otr€frE-fl**lJ-'J /*d* T-rpg of SamPIe Sarnpler4eu (sit'sl!) SriihdleVokrme - findicatsif ofher Elltered (cirqle) Prescr:pailve Added (cifdel thtlL *s Fpeciffeilftelnrr) VOCs )N 3x40ml YtrI Hfl, ffJ N Nutriens ,)N l00ml Yd9 H,SO. iy) N II6aw Xfietals Y (.hI)250hI YN HNE YNAII Otle,r Non- Rrdioloeics Y6i 2^50 nil YN No Preservative Added GrossAlpha YA}1.000 mI YN H.SO, Y N Ofter(spocify) /or*e"!. Iatrcad;L\ .UN Samplevolume v@ @ If aprcservative is useq SpecifyTlpeand Qrantity of Presenmtive: I t I I I I t I t t t I I I I T I I T Mill - Crouudwater Discharge Permit &oundwater Monitoring Quality Assurance PIan (QAP) Date: 2.25.07 Revision: 2 Page4Oaf 4l ATTACE{MENTl W${XTE MES.A {,'RAI{ET'M MILT, Date and Time for Purging F'TET,B DATA. WORKS}NEET TOR GROT'ND WATER DescriptiorrofSamplingEvent; 2^o1 {.?wo.rto -lLln*ro'+,ror- - Sampler Location (rvell name) .f,hj-'|.: I ( - Nr"it *Ai"iuals12n*, ll .11a*-P- and Sampling (if differenO , -::7 - $rell purging Equip Used: Xpump or -bailer Well Pump (if other than }rewrcL $d&&/.-d,'rt*,c*s SamplingEvent Prev. Welt Sampled in SamplingEverfi*-UZ- SpecificConductf,ncej&1-uMH0S/cm Wetl Depttr , +a+ - Depth to Water Before Purgi nefu4*- Casing Yolume (V) 4" !trell;---'--J'653h)- !t?o.", z S"TiIetl: - (.367h) Conduc&lnce (Lv* ** pHofWiter(avg).. --- pHBuffer 7.O- Z: A PHBuffer4.o 4- a - l{elt WaterTemp. (avs)- .- - Redox Potential (Eh)--:3urbidiry - ,{ Ext'lAmb. Temp.(prior to sampling "r.ot)-S-d4WeatherCond. Condu.tanc" 32 /'S -fi_ A,gL _ Tempcrature I[ rv Conductance. ,l Temperature / Redox potential (HD20S- Redox Potential @h)- TurbidiElt , Ll) "urbidity. Timq- Gal- Purged-Time:-Gal. ftrrgpd- Redox PoBntial (Eh)RedoxPotential (Eh)-f .; I I I I I I I I I t I I I I I I I I I Ml!-CnoundumterDischargePumit Date: Ll.l7.A6 Revision: I Groundwater Monibriag Qualig Assurance Plan (QAP)Page4l of41 Turbidity- Turbidity Volume of Water Purged When Field Paramekrs are Measursd-:- Pusping Rate C. alculation FIowRaie(Q), ingpm. _-.F Time to evacuate two casing volumes (2V) 5/60= =T=ZVIQ= -- Numberof casing volumes evacuated (if other than two) IfwellcvacuatedtodrSmesgnumberofgallonsevacuated .. -l---.. -. .- Name of Certified Analytical Laboratory if Ottrer Than Energy Labs. fr*J L TvmofSamPle $amole Taken (circle) &imnleVolume (inffcffeifoflter filtered (circlq) Preserveffve Added (SiTd") 'tha'd ac cDecified belowl voft /.YI N 3x40ml Y46 IIcx. {p N NuEients qN 100ml Ytr H"SO. (E N I*LwXfetals YN 250iirl YN HNO. Y N All Other Non- Radiolosics YN 250mI YN NoPremrvatlve Added GrossAIph*YN 1.tX)0 ml YN H,SO. Y N Ottrer(spociff) L^r*l Aracd^tt' UN Samplevolume Y8 & lf apresewatirre is use4 SpecifyTlpe and Quantrty of Prreservative: ,0 a*717 I I I t I I I t I I t I I I I I I I I Mill - Crrourrdrruater Discharge Pea-ait Crourdwater Monitoring Quatiiy Assurance Plan (QAP) F'[ET,T} DA.TA Date: 2.25.A7 Revision: 2 Page*Aof 47 .4,TTAAH@NT'1 WHHT'E MESA {M.ANIT]iV[ MI[,E, DescriptionofSamplingEvent: LJ-""' Ul*fi.oTr4- C.lqlotnf??wL -. Locarionqweltnarnel Ll^ 1A - ffiXtll.* itiat ftornrd,ttotl;lX t Eyw P*hvL DateandTimeforpnrging A.t4-0# anasampling(if ditreren1 b'J.5 " d* - Wel purging Equip Used: Nffo rr X#:flr*It Pump (if other than serlrte$-h!)aaA-{e SamplingBve* Chlrc*laA^ - Prev.WellsampledinSamplingEventS\{i:J$ pHBufferTO a-r\pnBufferao t D - specificcondtmtmrc df8-J---a\[tras.r;m wetlDepth lt'l] - Depnr & warer Before Pureine-!3. 3!-- casing volume,*rf #fiii5.()JA--!fiil|, Con&ie&ince pHof Wtiter(avgl .,4A - weilwarcrTemp.(wc,t-{t&.- Redp,qPotential -Gln> rur+ t*idtty at,* lfferitherCond. i:*,].q., ( ln.*r}.5 Ext'lAmb.Temp.(priortosamPlingevent]-]S-C-- Iirn"tj9-36--GalPureed-78 - Tiine:,.'. -Gal'Pnrged--:- RedoxPotenti *f*>&-- r*tioity {F .Y Redox Potential (Eh)- Turbidity Tim.t_.- Gal. Purged- Time:-Gal. Purged t:iREdox Potential (Eh)-Bedor Potsntial (Eh)- I t I I I I I t I t I t I I I I T I I Mill - Grormduarcr Discharge Permit &ounduraterMonimring Quality Assuranee Plan {QAP) Date: 11.17.06 Revisioa: I Page4l of 4.1 'twbdiq-*-**z'-TttrslidiLY-.-----..-"- Volume of Waler Purged Wren Field Parameters areMeasured--tl o X Pumsitrg Rare CalcIlation FlowRate (Q), ingpm. t5/60= = .b - Time to erraeuale two casing volumes (2V) T=2VlQ=l7 14r ^ Numberof casing volumes evacuated(if otherthan tsyo) If well evaouated to dr5mess, number of gallons evacuated NameofCertifiedAnalyticallaboratoryifotherThanBnergytabs / .,E.rr/ ?/0c'. S"*f ttf'lo Aucn,-'l $'h'r fla*/X-|zJ l:rLg TcrrGCIf SamDle $amole Tske,E (dfcL) SiipiileVdume findlcateif ofter Filter.ed {drcle} Prsserva$,ve Adaled fcircle) VOCs {Y) N 3x40ml Y 6f/HCL 7N Nurients E)N I00ml YAD HISO. ff,/ N Ileaw Mctals Y {10 250'tu1 YN HNO, Y NAtl Other Non- Radiolocics v6D 25Otrtl YN NoPlaservetive Added GrossAlpha Y I,N 1.000 sl YN IITSOa Y N O[rer (specifY) t;*ar!" frtrea*iz-< .U) N Samplevolume Y& If a preseiuative is ueed SpecifyTypeand Qrantity of h€servative: I I I I I Mill - Crmundwater Di,scharge Pennit Groundwater Monitoring Quality As$nrance Plan (QAP) DFSI: 2.25.tri Revision: 2 Page40of4l I I ATTA.CHMENT 1 WHME MESA {MA.EIIUM MILT, SryEE,DDATA F'OR.GROUFIT} WAT'&R DescriPion of SarnPliqg Sampler Ircation(urellnarne) J-bJ I -,3- Nameandinitials-T? Date and Time far Ywging L - 2 s" A--{ and Sampling (if different) Welt Purging F4uip Used. llpump or -bailer lVell Pump (if other than Aerure0-4€L -SamplingEve* cL{*oad-** .-- . Prev.Well Sampled inSamplingBvent zrrl4- pI{Buftr7-0 J .t-t pHBuffer 4fr .4.o SpecificConductance-{9.Z--uM[I0S/cm WellDepth , 1.. -O - Depth towaterBeforePurgine--27- /!, CasingVolunre%f.X;tryff;ff, Conduetance(avg)- PHofWtier WellWaterTemp.(avg)- RedoxPofcntial@nl----:urbidity- Ext'l Amb. Temp.(prior to srfirpling rvrot}-l 1. : L I t I I I I I z**ri, I $,r- f'nnrf'r:tance 3 g 0t ps--J.--3% ,"*****. lt'-il -RedoxPotenti8t (Bh) rurbidiiy )6 '2 -_.rurbidiw. L{ .Lt{ - Tirne:-Gal- Purged . :I I I I (iRedoxPotential (Eh)-Redox Potential (Eb)- I l' T t I I I I I I I I I T I I I I MiIl - Grousdwater Dischatge Permit Groundwoter Monimring Quatity .{ssurance Plaa (QAF) Dare: LL.17-06 Revision: I Page4l of4l ----- Volumeof WaterPurged Pumpins Rate Calculation FlowRate (Q), ingpm.Time to evacuab two ca*ing volufles (2V) S/@= q 2>..Js T=[YlQ= 2 (14 ,^,-t Numberofcasingvolunesevacuated(ifother ru**A l, / ( t/- Ifwellevacuatedtodrlmees,numberofgallonsevacuated.--1 - NameofCertifiedAnalyticallaboraloryifotherThan eruW ,;aW f , 5rl -l,L* w AWL Tvoeof Samule Samule Taken &rdet srihrileVolume# fmilicate if other filte#ed (circlo) Prerervotive Added fci{cle} thil'if ?p gpecified Y0Ce N 3x40mI Y 0S7 HCX" V,] N Nutrients ZN 100mI Yds ESo, q6 N IfiiawMetals YilO 25ALril YN ENO, Y NAll Other Non- Radiolosics Y&25Omt YN NoPrcservative Added GrossAlpha Y TqI 1.000 mI YN HrS0, Y N Other(spec$) f ,,,*iliue,o& uN Samplevolune Y[E If a preservative is used, SprcifyTypeald Quatrtity of Preseruative: (/ I I I I I I I I I I I t I T I T ***ffiMrr,L FIET,B MAT'A WORKSEEEN'FOR GR,OTINE} WATER Description of Sampling Event , 2- n" Qu.*or, o C hlrn, "* r.ocarion (wett name) t .- I t i,l[lllla *t mns/t,dttro ttotl>{I , Dy*r P*h,eL DaeandTime torYurgtn] 6'i.4'08 an{Samplrng(i taitrerenq. L J'A-'191 . vfelt purging Eryrip used: 5Hffi * X##V**ll Pump (if other than eeffieqblalAfr; Sampling Even t el/llyl"rrtw - Prev. lyell Sampled in Sampling EventJ^{-dt'l Il4ill - Croundwater Discharge Periait Groundwater Moribring Quaiily Assurance PIas (QAP) ru*p"**r, - IS -# - Redox Porenti at W- 3 tl 1- )-i'7 Date: 2.25 -A7 Revision: 2 Pagedfrof 47 pIIBuffer?.0 a,n specificconductnrce-f$.?-*ul&ros/cm wetlDepttr, .lU.1 - Deprh ro Water Before Purging--$$-[l- Casing Volume (v] 4" wen:-5!gl-(613h) condderdnce (ave) u* - rnorw.orGur) l')Yitl'----:-(1trh] wollfi/aterTemp.(wil-*tft,- RedoxPotential @hl rv* rmidity -,va* Weather Cond.-Esh.1p_!1.*4r=- Ext't Amb. Temp(prior to sampling event)-.&7 o('- Gd.Puryed-ff[- Tiinei-. ,-. Gal.hrged-----.-;- RedoxPotential (Eh) (:i t I I Tirne:-Gal. Purged- Timc- Gal. Purgpd- Redox Potentiat (Eh)- ' - ." Redox Potential (Eh)- t I I I I t I I I t I I I I I I I Mll - Crroundumter Discharge Pecmit Crouudwabr Monitoring Qirality Assuaace Plan (QAP)Pageal of4l Tu$idity----_ ----1 volunnEofwaterPurgedwhenFieldParast,brsaroMeasur'd lQff - PnmpinF Rate C,atculation FlorpRafe (Q), ingPm.t Time to evacuate hvo casiqg volumes (2V) 5160=T=2YlA= lil Numberof casingvolurresevacuated(if other fhantwo)._ - _ If well evacuated to dgmess, aumberof gallon$ eyacur Name of Certified Analytical Laboratory if Other Than Energy Date: 11.17.06 Revision: I I I Tvoeof Snmple Sqmple Taken(drde) SiiiuileVqlume (lndicate if ot&er filtere4 (circleI Preservntive Adiled forget ihf;ii ae spceified below) VO{ls N 3x40ml YCf,)+HCL 7N Nuttienfs ')N lmml Y 1tp HrS-O.c iY, N HriawMetals Y (ff)250rht YN IINO. Y NAll Other Non- RadioloEics Y@ 250mI YN NoPresefirative Added (koss Alpha Y /ls t.{m0ml YN H,SO, Y N Other(speciff) (n*orlt Dtrqaaiz^\ ryN SamplsvoIuEE Y@ If a preservative is use4 SpecifyType und Quantity of Preservative: t I I I I I I I I I I I t t I T I I I Mill * Groundwater Dischmge Pennit Groundwater Monitoring Quality Assurance Plan (QAP) Date: 2.25.07 Rpvisioa: 2 Fage 40 of4l A.TTAC.EIMENTl $/HITE MF,SA {IRAMTIM MILI EIEI,DE}A,TA Description of Sampling Event.J' Sampler location (wetl name) 7hi { - I t-- Nami and initials*Ti. DateandTimeforPurging /,)-..,?,<AX. *ndSampling(ifditrerenQ<-1I - lyell purging Equip Used:rlbump or -bailer Well Rlmp (if other than B ennett &rfut . SamplingEvent fLL,yr,nnu,-- . Prev.UIell Sampled in SamplingEvent @4. pHBufferT'0 'l "r>pluutura.o--:*!- O SpecificConducance-f&, ]-ulvfiIos/cm WetlDsP Well WaterTemp.(avg)-Redox Potential (Eh)-;:llfurbidity WeatherCon a !)r-f, l!^Zy ExflAmb.Temp.(priortosamplingeven0-2-7"-1'* urged-----r* ConductaEce )71A Redox Potential (Eh)- Tirne:- Gal. Purged-Time:-Gal. Purged- Conductance . - Redox Potential (Eh)- Bedox Potential (Eh)- t ,.I '.i I I I I I I t I I I I I I I I t I I t Mill - Groundwrter Disch*rge Permit Crouadwater ivlonitoring Quality Assurance PIm (QAP) ftrbiditj{ Date: tI.17.06 Revision: I Page(l of4l Tutidity \ VolumeofWaterPurgedWhenFieldParametersareMeasur€d - Pumpine Rate Slculatioq FlowRate (Q), inEPm. _Time to evacutte two oasing volumos (2V) T =ZYIQ=--.-' H Number of casing volumes evacuated (if other than two) Ifwell evacuated to dqmass, numher of gallons evacuatd - - Name of Ceftifted Analytical Laboratory if OtherThatrBnergyLahs TVpe ofSaUUile Snmnle T+ken(ctrele} $l&pleVqlu+efindcateifofter I'tltpred (cimlpf Preserfirtive Adilsd (circle) VOCs g)N 3x40ml yoglr HCx- {Y N Nutrients 7N lfilml Y IEI)H}lo ZN I{dawMetals YN 250h|YN IINO. Y NAII Other Non- RedioloEics YN 250mI YN NoPreservafive Added Gross Alpha YN 1,000 ml YN H'SO, Y N Ottrer (specifY)UN Samplevolume YN N} If a preservative is use{ SpecifyTypc and Quantity of Prcsenrative: I I T I I I I I I I I I t T I T I I I Mill - Gr-oundwater Discharge Fennit Groundwater Monitoring Quality Assurarre Plan (QAP) Date 2.25 -07 Revision: 2 AtrTA.CtrTMENTl WHI?E NfiESA URAI{IUM flffi E,T, EIELB DAT'A WORKSIIEET FOR GRO{INO WATER DescripionofSamplingEveil: fl 'd U,+t-t o- c-l,lr,rr Page4/.l-af 4l Sampler Location (wettnarag TN \ :2(\ - ilr.#ilarrifiaklitec--il- Date anrl Time for furging d' I {- O ? and Sampling (if different) i Wel purging Equip Use& f-numU or-bailer Well Pump (if other than BerneLXuL-fra1i"ir,/. SamplingEvenl Prev. Well Sampled in Sampling Event,lr,/ A E.opHBuffer7.0 pHBuffer4.0 qg 7 uMHos/cmSpecific Conductance-.1- Depth to lVater BefarcPvrgtns,JLt'5J- ConducEince <"*gl '/ - pHof Wfier(avg\ . .- .,.- 1{ell Water TemP' (avg}-Redox potential{Etr)jlturbidity l- Weiither Con a",ileq/k M- Ert'l Amb. Temp-(prior to sampling eve Oil l' '- Conductancerrnarrirnrnnce I q 1K Redoxpoential W*21 - RedoxPotential(Eh)- ^rwataky . ?-LL . Turbidig Tims-Gal. Purged Time:- Gal. Purged- Conductancq Temperature- Redox Potential (Bh)- t Iil'lellDepth. P/fr -Casing Volume (V) 4" Wetl: .--(.653h) 3 " lVell:____Z__13 67h) .;Redox Potential (Eh)- T t t t I I t I I I I I I T t I T I I MII - GrourdnraterDischarge Permit Gmundwatee Moniaring Quatity Assurance PIan (QAP) Date: 11.17-06 Revision: I Pagefil of41 Volume of WaterPurged trVhen FieldParameters are Measued. Pumping R+f,e CalcBlation FlowRatrc (Q), ingpm. F--Time to evacuate two casing volumes (2V) 516O=T=ZVIQ= ---- Numberof casing volumes evacuated (if other than two lf ryell eyaeuared to dgmess, number of gallons evacuatsd 4--:- . NameofCertifiedAnatyticallaboratoryifotherThan eougyl;abr f -{ --, lfi, {tuf hAwt Tvne..qf $rmrle Snmrle Taken (circle) $rimrileVqlqme findicrte if oihsr tr'iltered fcircle) Preservative Adited (clftle) t&tiii as seFcifreq hdow) VOC6 {YN 3xzt0ml Y IICT- (Y- N Nutients {?N lfi)ml Y II,SO, ff) N EdawMetals YN 250hI YN ITINO, Y N Atl Other Non- Radiolosiss YN 25Oml YN NoPreservatitc Added GrossAlpha YN l.fril)mI YN H,SO, Y N O&er(specifY)ryN Samplevolume Yg}N If apreservative is used, SpecifyTlrye and Quant$ of Preservative: I T I t I I I I I I I I I I T I Mill - Grouudunter Discharge Permit Grouadrvater Monibring Quality Assurance Plan (QAP) Datei 2.25 -07 Revision: 2 Page44of n"! ATTACHMENY { WE{XTE MESA EIRAI{TI'M MII,L FNE{,D DATA WORKSHEET F'OR GROUIqD WA?'ER Description of SamplingEvent: ?. ^ot &r p, orr Q *. -C lqlnerro| vvt Sampler r' l.ocation (well narne) Ll - ],\- wr#ioi, itiulrilrnn tloil f-i , ty*t P*lail- Dac aad Time totRwgng A'24' 08. andsampling (if ditfercnt) b,'J.S ' rtA -welt purging Equip use* /$ff, ,, j{ffi#t'*ol Pump (if other than BffineqJtr$aAde Sampling Evenw Prev. Welt Sampled in SamplingEvent-frd-k il pllBuffera.O 't dpHBufferTOA-r\ SpecificConductance Eg'f-d,fiIoS/cm WellDepth, I$ - Depth to Ytlater Before Pufging---.16 iqr-LIL- Casing Volume (V) 4" Vttelh Lt).3f . (553h) 3" Welk . (367h) conduefiince tavgl il* - pHofligriter(avg) , 14 - ' WellwatsrTemp.(wg-at&- XedpxPotential PO rrr+frrbidity at4 Weither Con 4.. ? ^,lt * c\o-dt/ Ert'l Amb. Temp.(prior to sampling 6vent)-j ( o '-:- Timq-l:@--Gal-Purge4. . . (n conduchnce 2 tr48 - -pu 7-a7 * tumprrt* ,,lV'Lf - Redox Potential CD-*!ZIg t{.2? Time:- Gal. Purged Time: - Gal. Purged - RedoxPotential (Eh)- Turbidity I I T Ljj Time: ,.. --Gal.Purged---------:* Redox Potential (Eh)-RedoxPotentiat (Eh)- I I I I I I I I I I I T I I I I t I I Mll - Groun&mtel Discharge Permit Gtourrdwnter Monioring Quatity Assurance Plan (QAP) Date: 11.17.06 Revision: I Page4l of4l ftrbiditY Volune of Water Ftuged When Field Pammeters are Measurcd Pqmpine Rate Calcuation FlowRate(Q), ingpf,,Time to evacuate two casing volnmes (2V) S/fl)= =h T=ZVIQ= I4 Numbr of casing volumes svacuatgd (if other than two Name of Certified Aualytical Laboratory if Other Than Energy I,abq -lo ff well evaeualed to dqmess, number of gallons evacuatsd . .--. - -:- 'l/n, s \**f orfffi/Wy=,i.J L-tt< Tvpeof S,amule S*mnls Takcn {eifcli') SaihrileVolume - (tnifioteif other FilteryC (cirele) PrsgfvsftveAddod (crfglp)'ffitE sp-dfi"d helnw) voc ]N 3140ml Y6PT HCT. N) N Nutsients ')N 1{l0ml Yllp L[-SO, lY) N IleawMetels YdJ,)250riil YN Htilo. Y N All Other Non- Rndioloeics Y@ 250mI YN No PrsservativeAdded GrossAlpha YA}lIm0ml YN H"SO, Y NryNSamplevolumoY@@ If a preservative is used, Specifyfipc and Quantity of Ppservative: Mill - Groundwater Discharge Peiiait GrousdwaierMoaiOring Qualisy Ass urance Plan (QAPI ilryE[,DDAT'A Deseriprion of SamPliqg Date: 2.25.*7 Revision: 2 Page40of 4l AfrilacHn@I\I?1- WHETE MESA {IRANIT]M MTT,L Locarion(wettnu*") '1 - }1 - m:tilr* ftkk{r,rtltr: ilrtt".,i:,, t qN il*tu€{L DateandTime torBwsiw L.1.4-A{ aadsampling(if *trerent) L.J,S . tl* - Prev, Well Sampted in SamplingEventlflathj0 well porging Equip used: &lffo ", X#:t''*"t pump (if orher rhan Bemeil huti'{ts Sxmpling$vqt.eWnf.oL.* pflBaffer7.$ 7,O -Specific Conducrance f8l. '7 uI&IOS/cm wellDeptr IJS ,- Dspth to WaterBefore Purginc=ElqL- Casing Volume (V) +' WeU: i8.55 (.eSgn) Con&ierance (avg) , il* - 3" Well:-... . {367h} pHof Ttlriter(ivg) " <tl4 -. , Well $rater Te nlp. (frt9 -tt&-- . Redox Potential &l af-P tu rbidity ,t* WedtherCond- p,{.t\.* alod4\g/ - Ext'lAmb.Temp.(priortosamptingevent)-3fL-- (-- ' RedoxPotemti"t(fr)--11t--- RedoxPotential(Eh) JLA Tirre:-Gal.Purged- Time:-Gal.Purged- Redox Potential Ghi i.;Redox Potential (Eh)- t t I t I I I I I I I I I I I T I t I nfiU - GroundunerDischarge Permit Groundrvater Moaibring Quality Assurance Plau (QAP) Date: ll.fl .a6 Revision: I Paged,l of 4.1 Tu$idity.Turbidiry Volume of Water Purged When Field Paramefers are Meas ;ur.:d---L^E- PumpinB Rafe Calculation FlowRate (Q), ingpm. I 5/60 = =------E Time to evacuatetwo casing volumes (2V) T=ZVIQ= l3 . ,-- .--- Number of casing voluneo evacuated(if otherthan two) If well evacuated to dqmess, numberof gallons evacuate.d NameofCertiEedAnalyticallaboratoryifotherThannrcrgyl-als f +r/ -l/..te.t Sr*t lFf ,'lo A*i;'"^! vtlr'r fl"r'+/X-'i-'{ L-rLs rrpesfEssds Sgunple Talen(ciqde) Sriihlile-Vo.lume finilicate if othet filtefed (cirde) Preservative Added (cir.cle) 't&a'ii qq *reeified helowl vo(3 (Y) N 3x40ml Y 6fi HCL {l', N Nufiients {v) N lfilml YrP H"SO, n N EriawMetals Y6)25OIn YN HNO. Y N Atl Other Non- Radioloeics v@ e50ml YN NoPreservative Added Gross Alpln Y4g 1.000 mI YN H'SO. Y N'ff) N Samplavolume Y@ @ If apresorvative is used, SpccifyTypeand Quantity of Pleservative: I I I I I I I I I I I I I I I I I I I Mill - Groundwater fischarge Permit GrourdwterMonitoriry Quality Assurance Plan (QAF) AEgAgffit@Ng3 Vff{TTE MESA I'RAI'ffUM IIdXLI, Date: 2.25 -07 Bevisiom 2 Page4Aof4l WATERFIEtr,BDATA Description of SamPliug location(wen n*) .. 'l - x1 *ffiJllu* id?drfi^t,a tt,tl;;!I , Ey*^t P*fu* DarcandTimeforPurging A',L4' 08 .,und Sampling(it artrercnq L'35' tt1 v{e1purgingEquip use& -Hf, o, lo#r?V*4l pump (if other than ser,net,kms)rts SamptirrgEvent Chlnc,#or..lu* - PrenWellsampledinsamplingEvent3!:! pll Buffer 7.0.-7 -fi SpecificConductance -?fl.'7 *mtostcm WeUDepth , 1).i'a - Depth to water Before Pureine-ttfftl -- casing volume ,*rf #i,,,1,{11 .!:;ll, condueunce(avg) l/ , pllofWriter&r1;+ WellWatertemp,(ave\-at&-- ' RedotPotential@DZr* furUidity ltt. WetiherCond. P^,Jl.fiJ l"*ct.y Exf tAmb.Temp.(priorosamptingevent)-]S"C:- TitnB:----"#- Gal. Purged-----..--' * e,,oawuao 33%l - RedoxPotential(Bn) 1 b tt r*idiry /0 f Redox Potential (Eh)- ?urbidity fi*e,- GaI. Purged- Time:-6al' Purged- RedoxPotential (Eh) t-j;RedoxPotential (Eh)- I I t I I t I I I I T t T I I I I I t MII - Grorndumter Dischmge Permit GrnuudwaerMonioring Qnality Assurance Plar (QAP) Date: 7L-17 -06 Revision: I Paga4l af4l Volume of ,tfi/alerPurged When Field Parametef,s areMeasured--26- Pumpins Rate Cetculation FlowRate (Q), in gpm. ,5160= =-_= b Time to evacuatetwo casing volumes (2V) T = 2VlQ= 11 - Number of casing volumes evacuated (if other than two) -If wcll evacuated to drlmess, number of gallons eyacuated NameofCertiftedAnalyticallaboratoryif0therlhanEnergyUa". / *r"/ lk.'s 5r*r dPF ,W iln',rari,rl vih'r ftt*/-1='iJ L-+dg Tvogof Samole Sqmple Taken (qtutl+I ' Si,inile,YpIq{q!q (indiclts lf othet Eiltercd (circle) PrererrafiveAdrI4 (ciFle)'thiil as snmifled hitow)' VOCs )N 3xzt0ml Y 6S/ ,.HCX- {y) N Nurients .)N l00mI Y rlD II^SO. iYl N Heaw l![etals Y d{)250trI YN IINO. Y NAll Other Non- Radiolosics Y CIIJ 250mI YN NoPrcservativo Addcd Gtoss Alpha Y /10 I.mOmI YN H,SO, Y N Other(specify) /"**u{l frr*,oirt Ul N Sampldvolume Y&@ Ifa preservative is use4 Speci$Type and Qustrtity of lteservative; U -' I I I t I I I T I I t I I I I t I t I Mill - Grotrrdwater Diccharge Ferinit Grourrdwater Monihring Quality Assurance Plan (QAE Description of SamPling Dae; 2.25-A7 Revision: 2 Page40af 4l ATTAC.HME,NTl WE{XT'E MESA UP.AMUM M[g,t (: ' n-L,13- ,"**** - L= ,*, -RedoxPotsntial (fr) TrrbiditY. Locarionlwetl nanel '1 - }L{ irffitilrin irtals")rdnrtt tt^lt"f^"t t Pyl"t, P*rt DateandTime t$?urgn1 l"'14'09 . and Sampling(itdittetenil L,:3.5 'til tifeu purging Equip used: dW, * {#JfV*ol Pump (if other than Benneil-hltaal{ta sampling EventllrIroft aa\Prev. lMell Sampled in SamplingEventjllJ$il pllBttrera.o , 'tf-dpr:.BrfterT.o-----3=O SpccificConductane-f{L-ulftIos/cm Well Depth lJ]. - Depth to Water Before Purging-SLlLg- Casing Volume (V) +' We1:5).21-(.eSf fr) 3" Well: - (.367h) Coadrieftrnce(avg) 14 = pHofWdter (ave) , ft$ ' - WellWaterTernp.(we)-4L--' RedoxPorEntial @hl ru*.-flffJidity ru4 fiIeather Cond. fis,: h,.y gla-& Ext'l Arnb. Temp.(prior to sampling event)--aq.4.- time:-@L-- Gal. Purged-Jfu2-- fnntuctwce, fi\Zfr* RedorPote*ial cn)-83- L\:tb Time:- Gal. Purged-Tinrs- Gal, Purged- Temperahre _-TemPeratrue r Mill - GrormdsmterDiscbarge Permit Grounduater Monitoring Quality Assurauce Plaa (QAP) Date: ll.l7-85 Revisionr I Prye4laf 4l Volume of Wats Purged \flhen Pield Parameters are Measured-bH Punpin g Rate Calculetion Flow Rate (Q), in gpm. /5/60= =-----E- Time to evacuate two casiqg volumes (2V} T=2VIQ= l{ . .. ... Numberofcasingvolumese,acuated(ifotherthant o) * - * If welt evacuatid to dryness, number of gallons evacuated Nane of Ce*ified Analytical Laboratory if Other Than EneW I.absJL:*tJ]o Ann rir.i 'l/ac.,. \**r ot€W;; fl)x/X-'iJ L-tAs Tvpeof $nmP-le Sq+rple Taken (circlel SiinoleYo,luup (indicalcitsihqt Filtercd (eircle) Prere$ative Added fclrcle) thtil ae sDecified trolorp)' VOCs IY) N 3x40ml Yof/i H(x,7N Nutrients tr)N l00mI Y1[p IIr.SPr f:[./ N Heewhfletals Y (f{)250itrI YN IINO. Y N AII Other Non- Pndiolocics Yo)250mI YN NoPrasenrative Added GrossAlpha Y/N 1-(mml YN H"SO. y N Other(specifY) {**o"l- frKean;L\ .UN Sampldvolume Y& Ifa prescrvative is useq SpecifyTlpeand Quantity of Pfcservative: {J; st I I I I I t I I t I I I I T I I I t t Mill - Crmundwatcr Discharge Pannit Grourdwa8er Monitoring Quality Assrrance Plan (QAP) FXEI,DDAT'A Da.tr: 2.25 -07 Revision: 2 Page40 of4l Af,AA.CHMEI{T I WHITE MESA {IRANT{'M MII,L Date and Time for Puging A.-,24 - 0g und Sampling 1it dittercnt) L'J,S ' Af1 welrpurgingEquipused: #iffn* l#r\%, *o (if other *anseffi*)-h-eratA{E SamptingEvent ehlorfoLn , Prev.Well Sampled in SamplingEvent*'4* ptttvtrErlo 7-O PH Eufferao '{ 0 - SpecificConductance-f{.,2*nlr,Etos/cm a,.ellpsp*- I Y3'I {,-- - Deprh ro waterBefore Purgi r, ffi r- casingvolum, *r;"#;Iffifr:;, Conductdnce (wel ilfi' pltofWinrr(av* ' 4?- -welt waterTem p.(avgl-3)/+--* Redor Potential (Eh) /ll-Turbidity alrt- we*e*ond.dca)*a_Exf tAmb.Temp.(priortosamptinsevenr)*Pa-L- t"*p".t*" . 15'3Y- Redor Potsnti nt tr;i- ---!ftO-- Trlrbidiry 5,2,/ - r"i' . (..-' ' *lnau*w"e 2731 / 0--oH b'l\ Redox Potential (Eh)- Tur:bidity - Time:-Gal- Purged .. Redox Potential (Eh) Time:_- Gal. Purged- Redox Potential (Eh)-(i I I I I I I I I I I I I T I T I I I I MII - Groundwarer Dis charye Permit CroundwarerMonitoring Quality Assuraace PIao (QAP} Date: t1.17-06 Revision: I Page4l of4l Volumeof WaterPurged Puqping Rate Calculaf ion FlowRate (Q), ingpm. I5/60= ------E Time toevacuatetwp casing volumes (2V) T=2VIQ = 2d ._ . Number of casing volumes evacuated (if other ttran two) -- - If well evacuated to dr5mess, number of gallone eva"rotsd , -l' Name of Certified Analytical Laboratory if OtherThan BaqWI.tbsJL :M*-lo Arr*;-l *t- tFFZg-,J l-rLE L.z;,os IYpeof$amPle Ssmnle TrBgu (clrde) SrimflpVoluqne finilicnte itothcr Eitted (circle) PreeerqotiveAdded (Circt4 thlidaglEecified below) VOCs {y) N 3x40 ml Y6P HCL {V N Nutrients tr)N 100mI YrN)Ehs0l fg) N HriawMetals v([p 250tul YN HNO..YN All Other Non' Radioloeics Yd)250mI YN No Preservative Added GrossAlpha Yn0 l.fil0ml YN rLSO, Y N Other (specifY) l**orl. fiilnaiz-\ 'ffN Samplevolume Y@ If aproservative is used SpecifyTypcand Quantity of Preservative: a" [.zt.ov I I t I I t I t I T I t I I I t I I t Mill - Groundr.vater Discharge Penuit Grounrlwater Monitoring Quatiry Asstrance Plan (QAP) DescriPtion of SamPling Arr&cHbqN,T,1 WE{IT'E MESA UR^ANIT}M MIE,t Date: 2.25 -O? Revision: 2 Page40 of4l VgATER t/v\- Location (wellname) {N!l- [d-Samoler n Affiffid initiakdan'ur tloll,ilr,,l, {'{a,'t t l*n'*J' Date and Time forPurging 9$ : BaL-*d samPling (ir differcnt)- WeltpurgirgEquip Use& gffiumpor-baiter WellPump (if otherthan nenneil@ pHBufferT samplingEve ", Al,nt*r^ - Prev. Well Sampled in SamplingEve*--dtl& grll *r{ )pHBuffer4.O.?.a Specifrc &tductance*!&3--.:tMmAShm 'WellDepth, ary* - Depth m Water Before Purgin e il il*- Casing Volume *lf ,,ffi'.==!fill)pHofWater(ivg). 1-- Redor Potenfi"f CetD--t'Tu{Ui dity -- -b Conduetance (avg) -:-./ Well Water Tem P. (av g) --- ":- -weathercond *-*- Ext'l Amb.Temp.(priortosamplinrwent)-3L:- Conductance. L\5 Conductance -- pn . t.ST _. t*mpentur" il'..1( -Redox Potentiar fnnlUSS*---'' i UC) Temperature- - Redox Potential (Eh)- Turbidity time'- Gal. Purged-Time:- Gal. Purged- Conductance-Conducfance Redox Potential (Eh)- pH. Temper0ture - : Redox Potential (Eh)-ti bs Eb*r Mill-GrouadwaterDischargePermit Date: LL.17-05 Revision: I Groundwater Monitoring Qualhy Assurance Plan (QAP)Page4l of41 VolumE of Water Purged I[hen Field Parameters areMeasured----:- PnmsigF R4te Calculation Flow Ratre (Q), in gpm. ,A Time to evacuate two casing rrolumes (2Y) 5/60= =& T=2VIQ= ..-_ . Numberof casingvolumesevacuated (if otherthan two) - --:-l -Bwell evacuated to dryness, number of gallons evacualed ----- Name of CertifiedAnalytical Laboratory if otherThaa nwrevr,$sM &^l t Ivreof Sample Ssmple Take.E (cinctp) $omdleV-ohpeftnfistsifdq $lllterd (cirele) Preservafive Added fclrde) thtid as sDecifted helow) VOCs /Y) N 3xzl0 ml Yrffi }Ifl, @ N Nutrients 2N 100mI Y H"SO, &t N Hdawnfietals Y 1t$)250mI YN HNO. Y N All Other Non- Radiolosics YS 250ml YN No Pressffative Added GrossAlpha Y6P I,00OEI YN H".qO, Y N&N Samplevolume Y6F If a preservative is use{ SpecifyType and Quantity of Preservative: 81",,-a I I I I I I I I t I I T t I I I I t I Mill - Groundwater Discharge Peimii Groundwater Morioring QualitY Assurance PIan (QAP) AT'TAcrydENr-1 WNflITE MESA URANIE]M MTT,L F[E[ADA,TA, DascriPrion of SamPling Sampler Location (wellaurre,) fN 4 - [a3, - Naun and initials:{a Darl 2.25.07 Revision: 2 Fage40of 41 WellDepth "-:-- - Casing Volume (V) 4" Well: - (653h) 3" Well:---* -(367h)pHofWliter(iffg)., ,-.- ' .'i Redgx Pgtential (Eh)--furtidity -.- QJ,o, DateandTime tarP@ng d'23'0Y andsampling(ifdifferent) .- Welt purging Equip Use* j(pump or -bailer $rell Rlmp (if other than Bennet]- ltSamplingEven her,. Well Sampled in SamplingEventfl#- pmnurerzo , ... 7'C) pnnuner+'o -'f'0 Specific Cond t cranw,*q tLZ-t fuIHASbm Depth toWaterBeforcPrrging . -. :--- conduemncetaw)S Well $IatErTemP' (avg)-- --' enndwra*ce .4- f) , pa - 1.i!.&- Weithergon d. 1k+-,1 3 ExflAmb.Temp.(ptiortosamplo,ee,{enq;l-do" Redox Potential (Eh)- r*bidiryf,W l-frY turbiditv fi*r_ Gal. Purged Time:-Gal. Purged . Redox Potpntial (Eh)-Redox Potential (Bh)- <...\ '-; W- l2inL*re I I I I t I I I t t I I I I I T I I t iuill-GrouadwaterDischargePermit Date: 11.17.06 Revisioa: I Cruundvrat* Monitoring Quatity Assuraace PIan (QAP)Paga{l of 47 Volume of WaterPurged WhenFieldParameters areMeasured , --'i- - PumpinF Bab Catculation FiowRate(Q), ingpm. I Timetoevacuare 5/60= T=2VIQ=- Number of casing volumes evacuated (if other than two) - T- -If well evacuatsd to dryness, nurnber of gallons evacuated . - - .I NameofCertifiedtuialyticatl-aboratoryifotherThan f-n|J{r]LaAs fly'-'b 1eV- Vfrz\ "' two casingvolunCI (2V) ^+ frt"tu TvpeqfSnmnlP Saryple Takc.F (circle) SiinrlleVolume findicnteif othq Eitterei!- (circle)4r,emrvotlveAdd4(clrcle) thdilss suecified hdow) YOCh 2N 3x4Oml Y 1tl) ir rcL qAN Nurients lvN l00ml Y N{)FT"SO, & N EiawMetols YftI 250hI YN IINo. Y N Atl Other Non- Radiolosics Y&25Oml YN No Presenative Added 6rosoAIPha Y {TV l,m0mI YN HrSOr- Y N Other(sPecifY)&N sanee.vY YdP E) lf apreservatfue is uaeq Speci$Type and Quantity of Ifeservative: I I I I t I I I I I I I I T I t I T I Mill - Groundwater Discharge Pennii Groundwater Monitoring Quality Assurance Plan (QAP) Date 2.25.A7 Revision: 2 Page40of4l ArrA,cHMtsNT I WffiITE MESA URANI{}M MILE, FtrEn D DAT'A WORKSHEET F0lR GRqUND WATER Descriptionof SamplingEvenh f,.n1 ()'lor|c Chloro\i:rt'' - Losarion (wetl narue) T\iLi - @ t5 . ii#'Jil, *itialsll.,ni',Ee. ]Jsl!,J^* Pol*r. DateandTimeforPurghg LALI,/f''F andSampling (if dlttetent) L/)S/OK Well Purging Equip Use& JLRump or X_bailer lvell Pump (if other than Bennet)- SamplingEvent Prev. Well Sampled in SamplingEvent- pHBuffer?,O -7.f) * pHBuffer4.Q tlO Specific Conductance, g I .7 rMHOS/cm '[Vell Depth- Depth to Water Before Pursrnr- casing volume *lf #;1::_,:fii1, Conductf,nce (avg) .-:-- . Well WaterTemP'(avC)-- -- * pH of Writer (avg)* RedoxPotentiat (Eh)- -Turbidity .- WeatterCond'Ext'l Amb. Temp.(prior to sampling event)-J&- fi rr"S::"L_ Gal. pureed-LL5_ conductaace ..3g0l -'...0LTemperature t ) Redox Potential (ED--a85-- turbidiry 16'A . rim"r-3tq-- Gal. Purged-3lJ:* r-^nrhrcfrnce Sfti( ps . ts I,L ,L'7 RedoxPot€nti*Gn) 197-- TurbiditY.tl ,(ul Time:- Gal.Purged- Redox Potential (Eh)-Redox Potential (Eh)-I l'., D*o\i.rfe cf Twq- fl I I t I I I T I I I I I I I t I t I I Mill - Grouadwata' Discharge Fermit Groundrnater Moritoring Quality Assurance Plan (QAP) Tu$idiE{ Date: 1t.17.06 Revision: I Page4l of4l Turbidity (^Time to evacuate two casing volumes (2Y)T'zVtQ= 2QQ /1:n. Numberof casingvolumesevacuated(if otherm*t*o) - :--..J:fl r t/. If well eyacuated to drlmess, nurnber of gallons evacunEd .::-- Name of Certified Analytieal Laboratory if OttrerThan Ensrry Labq O /WL oo,6 Volume of Water Purged Whet Field Parameters are Measured_-:14 ' Pumninq Raoe Calculation FlowRate (Q), ingPm. TYrcof Samnle SamrleTrku (ciryIe) SrimnleYolume (lnffeoteifolbq Filtered (circle) Preseryativs 4dlaled (cifcle)'thed as enecified }elnrr) VOCs (Y-)N 3x40 ml Y 1N}HCX, (YJ N Nutiens vlN 100mI Y a$r H,.SO. (Y )N I{r*rwMetals YN)250ml YM I{I[O, Y NAll Other Non- Radiolosics Yq/250mI YN NoPreservative Adrled GrossAlpba Y 6q)1.000 mI YN H,SO. Y N Other(speci$) G<n<ral Lno*t 'tit €JN Samplevolume YAD Y /N \t/ lfa preserrrative is use{ SpecifyTypeaad Quantifl of hreservative: I I t Mit! - Groundwater Dircharge Fen-oit 0rourdwater Moaitoring Quality Assurance Flan (QAP) Date: 2.25.fr7 Reuision: 2 Pa4e40af 41 aT'TAeSe4EN?1 VfT{NT'E MtsSA URA.NEU.]td R,flI,L FXEtr,D DITT.A WOMKSE{EE" F.OP"" GR,OUNE} WA?ER, Description of SamplingEvem: ! ^ 4 CI,*o*rtt lL/o-o r,a.r^ Location (wettnatw)7h:l al -Va f,U:'ilrin inasTi^*,- # . 4 +* ilL DaeandTime loiPwgtng { "25 '0 V and Sampling(if differcnr} Wetl Purging Equip Use& -pump or Sbailer Well Pump (if other than Bennx)- Prev. Well Sampted in SamplingEven pHBufferT.Q Specific Conductance-----uMll0si/cm WellDenth Depth to Water Before Purging--- Casing Volume (ty') 4" Well: (.653h) 3" Welt: {367h)Conduefdnce(avg)-- pHof.Wdter WellWaterTemp.(avg)- RedoxPote,trtial(Eh)-turniAiry WedtherCond.Ext'l Amb. Tempdprior to sampling event)-j-[, T I I t I I I I I I T I I I I I Time: - ... Gal.Rrrged- Conductance- RedoxPotential (Eh)- olf Temoerature Tiine: ,.. Gal. Purged_-__- . * Conductance-._ - . .., RedoxPotsntial (Eh)- ?urbidity Time:- Gal. Purged- Conductance- Time:-Gal. Purged- C,onductance- pHPTI Temperature- Redox Potential (Eh)-RedoxPotentiat (Eh) L:; J)*fl,-,uL d t&nrl -g I I I I I I I I t I I I I I I I I I I MilI - Crouudttnter Discharge Permit Gmtndwater Moainring Quality Assurance Plaa (QAF) DarE: ll.17-06 Revision: I ?agefil af41 Volume of WatEr Purged Wheq Field Faramete.rs are lMeasured- Pumpins Rare CglPulatioq FIowRate(Q), ingPm.Time to evacuats tryo oasing volumes (2V) 5160 = -T=2VlQ= Number of casing volumes evacuated (if other f&an two) If well evaeuated to dr5rness, number of gallous evacua Name of Catified Analytical Laboratory if Other Than Energy Labs } *f,;*t{- { r*v-K TyneofSamo.le Sapptre Taken &irrcie) SiiniilqVo,lump fl:nrfleato ifothrr Elltered fcircle) Presemative Ad,$gC fcircle) {htiil aq speclffgg helorr) voch lwN 3x4Oml f /ff) i4 TICT- (J/ N Nutrients (ylN lO0ml Yru H'SOr (Y N I&iawlUetals YN 250'iiil YN Htilo. Y NAll Other Non- Radiolosics YN 250m|YN No Prc,servative Added Gross Alpha YN 1-000ml YN H,SO, Y N Other (specify) /nn rnJ-E*,** UN Samplevolume YN If aprc.servative is usc{ SpecifyTypcand Quantity of Pr-eservrtive: .:/ t I l, I I I I I I I I I I I I I I I I Chloroform Wells D"t"_-1_-21 ofl_ mm*s I / L,.tsx bz.,*vhy,tb Time t0\,, !b.{tL t047 l0 2" ri ti tofi? ln7.v l0\ I ilL{ la t7 la ?0 lo*a _ tos L $361 ta.z* 04 St ffi{1 taal 01'{0 //{o 0q.s-.1 ffis7 t4s t llt a 4 M41 ot3 I Well MW.4 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 TW4-15 TW4-16 TW4-17 TW4-18 TW4-19 TW4-20 TW4-21 TW4-22 TW4-23 TW4-24 TW4-25 Depth 7'lj(,1.2;_ trr t"LLlz-s i toL'i7 53. s6 v s t2 ,\l S3 *y3, * ? b< sI 3b.,<'/ ,5 0,1{ qt.0Affi,97 -{rl.ls 77.r b F4'tt ,5v-/ g 7i. s / s? ./".?-. ';{. L€ Comments 11,1r'^ r';'r ," l' H ,,, JeL&e- -J_\[,. ts t T I. I I I I I I t, I I I I I I l, I I DateS-7.d,?_ Time Well fiY{ tlw {V3.'*6 Flow-4.5 Depth to Water rmns {14.tt,,26 Cornrqlents Meter CIs/tsqo . Meter Os oA e e(, , ftt.{8. Till-/s-I lf.sf Flow__l;.6 ilno on o*m-----f-- ffiS€ .-attt- t?*{. Yl Flow__?. /*Q?r,a Meter 00!/?t0 - t1/50 T^/ t- ,zo -4s st Flow_S_._Z Gt,,a Meter d L(7t17fl _ Lt2 bl; L I I I, I I I I I T t, I I t I T I I I I Depth to Water Datej:ll:0$_**Hs t 2L3 16 -Titng WelI Depth Gomments - INM fiNT C q.n Flow-t-1*a* Meter Os tao zo , lott{ fNq-t{ v? g? , . Flo* x" o**,, "^*^*R * o{ Meter Ir,tfi Thtrt-.ry ?S ?rl Ftow . t. l Lt^ Meter tlsOF P"|*, t0 t? 7N4- ,? a .( l.Ss Flow V. 7 L p*^ Meter_a) t1Z- sgz6 NNte ,, _ 1e107t\ hrn, nr. * t lk .*o lt*t.6.o1aq w Eov, qoN At^u"A ,/0 trlow nto* y?^,U& Da<- tt ?o'?C F"6[tr"r,' rvtu - I +! Ani ntot NndX W A€2^'4't 7n"r{'r s I I I, I I I I I I l, I I T I I I I I I Date Ll-2!'09 Tirne Well Deqth Gomments - l.( I '* {n,., 1.ffi.ad, Ftow { L Gtq Meter fi3t4tq) Depth to Waten mmHs . S23 ,q S _ bL q*; Ftow llt.1 h hal _ 7"r- rT Meter llz n /tltt,, t4.t,,; t (l ',\ ()d0 -frffi*Ftow ffiV,.Lbtn,4f 4l Meter,Wfl"d ? +r --T/ l'tl -ls - Tr+t4: l1 .- i<- Tb.tq-?(\ - dg.S'l Flow .S x lal< Meter O,t to 4 t) lrtktf (l q,<2- qZ Y {&ylo,, flu, ftrrrL au1i,t{,t*f I I I' t I I I I I I I I I I I I t { I T Datej-3yt;4. Tiryp Well Depth to Water mmHs-} L\ - 01x Depttl Corqrrlents (TT ' rilN 1.?{ {q , Ftow_ll(_ Meter :i<s llno * -012{ 7hl.{-rr t4 T/._ Flow F.l_ MeterJd4, rt 7 cr . r /azl .tw4- t1 clL.ai? Flow_Z,7 Meter 03tf (t(\ l{ il- ,rtst |-Lit Flow S. y Meter_0_{_b4/rf / '1f, '\1",^-t {)t,d|D /}fili, +r,,.ri'f i* 5,ru%/.dJs-Gt4,{ -W+ blkl,/"A- I I t, I I I I I oate*S.tj)E_- Tirne WeEl Depth to Water mm*s Ug.7't1 egrnments )qst p,lrtr Ll ?t. qy Fbw f..< _ Mete l',,nry Tl",tl fi W Meter ea ta.<ze_ rw* X.7 -Meterffi-"{f?ld Meter Ot VzVO lr'=ry- r= I I l- t Nw( - I I I, Depth to Waten I aate_€. t-2 - oX_ mmHg_lJes I Time UVp!!- Depth eomrnentsI - --.l.-r ttt ?i):J r lot6 - rr,-t "l- ls 7t.73*- FIow s.5. a p,\ I Meter OO l.sr{qo . CI.t23 T tut- tI - qz s L. Flow I. r tozl TNrt-?o - 1t-.{tL FIow q.0 (,pA Ir== - I_I 4 w+TLp-,. ?1347" I I 4+ l"o l, T I I I t I I I I I I I I t Date S -.,1L-€.-(-_ Tjpe Well Depth to Waten mmtas I t?,S,QL Comments Frnr { 7Z 16 , FlowJGl-PA Mete tt^19-lf t*.6/ Flow rz-G_Ia Meter <@ n"'.:Ortrd . r.,^) 1'17 _ t-a l'l Flow_$i__tE& Meter r;r-lo3.{i) , fat l-Lt),.6e. ** Fto* 5.0 Cplt . Meter oq1fl3on . al I I ht+rzL ' qtfi sl I I I, I I I I I I I I I I I I t l, I I Date s-2"-rr6_ Time Well Deptf-r to Waten mmtls L lS,7 \1 , eonrnrents tut^i tc 7? lL FIow - .l.A ,GPA ,Meter frSafrg,tO : rw q. t s' E7 "l* Flow S.o CpM Meter ,:r',reasO _ rq q,-. tl _ 7q X0 Flow t { 6p$_ Meter osnaatn . r+'as Meter oqojqrc ', llrtq+ I t l, I I I I I T l, I I I I I I l, I I Date_S 21- o Y_ Time Chloroform Wells mmng LTA,ziK )T 3_{ t33 0 t,<14 tz r"l Fl0 t2s ( rSt{, .2a fl)Jl^ $2'l tLw q t* ?8_ uoc lLl ,l tL{ }5 l'{ tf .als6 # Itlol . 110'l tr,t[, tLtsL li5 3 13 LIJ \3111 , 1,1 lz iL^q' rs 'll Well MW-4 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 TW4-15 TW4-16 TW4-17 TW4-18 TW4-1e TW4-20 TW4-21 TW4-22 TW4-23 TW4-24 TW4-25 Depth 73-AL 6a-rU 6q L\) u{J,su\ t"Ll:l{< 54 "orzs l'l Lq,q( 6q oa t^i "ct6 E3 "ll 1,,1.,fl 5. . .,31 .ff3 _€0.6f $q3: 1q gq 6s.qx 7a,..1:l . ..5_!..10 86.q2 hI ,t-{ . 6tr nss.q\ 61-*1 q0..ii _5_p , t{ ? Gomments I t I I I I I t I l, I I I I I I l, I I Depth to Water mmtts [ 2A,7L 8 Tirne Wel[ - - tlepth eornqrentq iqq b Fi*, ,_bs.tL, Meter _ltl-es 1'1 lL bi, * R 31.),6 Meter 4 t. ts Flow l(?5 \UJ^LI} _:Lq Lt t,<Ao . tM 2\ il?. e i Flow_ Meter I I I. I I I T I I T, I I I t I I I I I Eepth to Water Date c/X/c:g mmHg bl7 g (} DFPttr eomnrents - rqu; t pq3 Flowl}=&P}{ Meter osea.ttrr . tt til .t.urLt _ i5 - 7k09 Flow S,!LGpM Meter ocr=..ql() _ ,ttt.{A Twq - lq d 4. tO Flow Meter soe[l#0 NA{ -i-wil -}.D 7Yll- FIow 5aG_?11 Meter r^\r.'7 I6D_ \.4-li.rtrn' CIos s zc) I I I, Depth to Waten t Da:*-L13-Lcv6- mmt{s Gla 55q , I Time FVell Depth eomments I lt\q AhJ q Ta LlT Ftow 'i lGp/A *r % Meter l=_% r ir.{[ ffi -l. I % Meter on3Sq7n . r io37 uaru.-ta- ccLT Fm l,Meter ossx e so _ Ir Il5'1.._ Tir[{ - }0 cL l} Flow 45 G.pA:*- Meter .>S t tS,6o , I Ir= t I T \AI ,et: (\)^{rrqLl I t l, I I T I I T T I I I T I I I \. I I WetI Date_ Time G" l6-o6 Depth to Water Deptil mmHs qll.o3 Sonnrnents Flow "{ S_CIA Hnut"i Flow__B o._erp/r fU"t* ose5 lqw q l\.63 o6i 5 T\^r:1- t5 {l qa . ilir._, Twi_l _ lcr 67 C{6 Flow_ qq,(;pM Meter__ rf6,t)_ll 0 0600 .i-wl{ -,. 4p c.t.l), Flow-_L-u_GM_ Meter l:,\i 57S 0 WerFR "9q1r10, T I I I T I I I I T I t I I t t l, I T Depth to Water Date L/)-a /cs mmHg L).S tO}- Tirne Comm Flow q 1 GPr'\ Meter o3g7o Flow WLWB\ 4t> cpn Meter oS rq 8 Water: aate L/30/tsx Depth to Water mmHq L37.5Ll I I l, I t I I I I T. I T I I I I l, I t T Time Comments Flow '-{.5 f, pN{ Meter C)()50r] l() I I I I I I I I I l( tl ll\ // lt//.4=;.?\\- . Jp,' tl tl \\t\ N \r. A I+ 3 MW-20Oil62 oo \\o-s\- ** __ MW.22atl50 3000 SCALE IN FEET EXPLANATION perched monitoring well showing s462 elevation in feet amsl temporary perched monitoring wellO sssz ihd[,1|l66r-;i* in feetamstPtEz-1 perched piezometer showingg 5592 elevation in feet amslMW-31 perched monitoring well installed April, f ssls sholing ehvation in feet amsl NorES: Locations and elevations for Tw4-23,Tw4-24, and rw4-2s are approximate r. --_^ temporary perched monitoring well installed'(4 55/s April, 2005 showing elevation in feet amsl \A, __.^ temporary perched monitoring well installed,ta 5540 uay, zoo? itrowing approximite elevation _,(r(Jq/?1--U, \ )Er,u)\y,/ - t )(\dt PtEZ-3e5607 \\ \\ ll lt /t i(//\,l; l1 l1 ^]l 1l 1l 1l 1l 1l 1l 1l 1l 1l gl gl 1l 1l 1l 1l 1l ,*,-ffif"Iw1-23 I \ PtEz4 X-=----:':'=c5539 ,,, \ HYDRO GEO CHEM,INC. KRIGED 2nd QUARTER, 2008 WATER LEVELS WHITE MESA SITE H :/71 8000/aug08/wl0608.srf IIIIIIIIII IIIIIIIIIIIIIIIIIII \ \\ il lt lt PIEZ€.5607 i(ttt il l1 ^]l 1l 1l 1l 1l ;l 1l 1l gl 1l 1l gl 1l 1l 1l 1l 1l It tl ll\ // tt////-\-y'- . .,l}ro ll l\ ll \l \\\r MW-20\ aat6l\\-\\ MW-31 perched monitorir€ well installed Apd[ 2ms f ss45 sho\rrirE elevation h feet amsl r temporary perched monitoring well hstalledI5573 Aplil, 2m5 shorring elevation in hel amsl u1 __.- temporary perch€d monitoring well instalbdI 5540 emy, zmz'strorvirq approximite elevation 0 3000 SCALE IN FEET 5461 EXPLANATION perched monitoring rivell showing elevation in feet amsl temporary percfied monitorirE well shoring ebvation in feet amsl perched piezometer showir€ ebvation in feet arnsl O sssz N I \ PtEZ-1e 5592 MW-22{rt50 ,//////,//,//NOTES: Locations and elevations for TW4-23,TW4-24, and TW4-25 are approximate; Water levels for MW-02, MW-20, and MW-22 are from the fourth quarter,2007 HYDRO GEO CHEM,INC. KRIGED 1st QUARTER, 2008 WATER LEVELS WHITE MESA SITE Quarterly Depth Summary 2nd Quarter 2008 T t I t I I I I t T I I I I I I I I I WELL MW-1 MW-2 MW.3 MW.3A MW-4 MW-5 MW.11 MW-12 MW-14 MW-15 MW-17 MW-18 MW-19 MW-20 MW-22 MW-23 MW-24 MW-25 MW-26 MW-27 MW.28 MW-29 MW-30 MW-31 MW-32 PIEZ.1 PIEZ-2 PtEZ-3 PtEZ-4 PtEZ-s DATE 6t4t2008 614t2008 5t28t2008 512812008 512712008 6/1 8/2008 6/1 6/2008 6t17t2008 6t18t2008 6118t2008 5t28t2008 6t412008 61412008 6t17t2008 6117120A8 61912008 512812008 6t12t2008 5t27t2008 6t2t2008 6t3t2008 6t3t2008 6t312008 6t3t2008 61512008 5129t2008 512912008 512912008 512912008 5129t2008 DEPTH WELL MW-4 TW4.1 rw4-2 TW4-3 rw4-4 TW4-5 TW4-6 TW4-7 TW4-8 TW4-9 TW4-10 TW4-11 TW4-12 TW4-13 TW4-14 TW4-15 TW4-16 TW4-17 TW4-18 TW4-19 TW4-20 TW4-21 TW4-22 TW4-23 TW4-24 TW4-25 67.14 109.63 83.51 85.58 73.38 106.9 91.44 108.84 't04.15 106.9 77.86 72.16 50.53 78.98 67.64 1 13.93 114.92 76.9 79.06 51.44 78.45 103.1 78.24 71.9 76.67 63.66 14.63 31.26 52.27 47.15 DATE DEPTH 6t25t2008 77.24 6t24t2008 61.98 6t24t2008 69.49 6t2412008 47.64 6t24t2008 64.62 612412008 54.19 6t24t2008 73.23 6124t2008 68.13 6t24t2008 69.04 6t2412008 52.15 612412008 54.37 612412008 62.61 612412008 36.64 612412008 49.94 6t24t2008 89.86 6t25t2008 79.89 612412008 63.96 6t25t2008 77.16 6t24t2008 54.81 6t25t2008 95.92 6t25t2008 69.53 6t24t2008 60.19 612412008 55.96 612412008 67.84 6t24t2008 56.49 612412008 50.65 White Mesa MonitorWell4 Depth OverTime Date 70.00 & =i so.ooo o6 =o; e000 eoo 100.00 I I I I I I I lr lr lr lr lr lr lr lr lr lr lr l, wv;X,*i*;/"y;,s;:,{;Ayf&x7k{;s**;Ay*iaf*?,yA1te,Waf,;r",?,;i;W!*,,re!d White Mesa Mill Temporary well (4-l) Water Level Over Time Date of Measurement G =,l eo.ooo o6Bo; so.oo qoo '*.i;:,*#*;,*,::i;,,*;-,7,1y&",*;:;3*;**;:8:.;l:"*.;,4 White Mesa Mill Temporary Well (4'2) Water Level Ovor Time Date of Measurement "**!f,*aoo'41'",r*i""*fq*"*:'"%:-"r::"%,"'*",oo*.r@',,o?n u"'*"u@q""bo",'u'^b""!'+o"''*"?**ru 70.00 L E-l eo.oog o6 =o; so.oo 4ocl 100.o0 White Mesa Mill Temporary Well (4-3) Water Level otrer Time Date of Measuretnent c 70.00 =3o @f 80.00 Bo qI gooo 100 00 Whib Mesa Mill Temporary Well (44) Watsr Level OverTime Date of Measurenrent L =-=0 @6 =o aoo ".*g;i#r,w#xft,ierft #a*;,;3r!,**"y*{ White Mesa Mill Tsmporary Well (4'5) Water Level Ovor Time Date of Measurement 'a.f ;e,f;ei7$"o'7rll',"d!eaf!',i!' White Mesa MillTemporary Well (46) watBr Level OverTime r E! eo.ooo o G7o; eo.oo eoo 100.00 Date of Measurement %#*8F*&r#rt*tr*a&:8FA**#{{;rfu & White Mesa Mill Temporary Well (4-7) Water Level Over Time Dats of Measurement "'u,!;"r?:,r*",8",i,?-{:",r*,",ri?,!t",. 50.00 60.m b 80.00 6 =o e$ eo.oo ^,{ I I \r^/ ,-.,'4Y Vll*t' I I Tt I I T I I I I I I I I T I I I I I I I white Mesa Mill Temporary well (4-8) water Level Olrer Time Date of Measurement 'H;;*#i*aaft x#y,#i/i"$;y,#,{;;i,ra!;a White Mesa Temporary Well (4-g) OverTime Oate Of Measurement L E =E @63o E oo %"2;f *li?,*i,*!;,t!"y/,*;Y,y;?,y White Mesa Temporary Well (4-10) Over Time Date Of Measurement u7;;,79!f ;y.fiy"7;;,7,y!ii;y,3;;,7,y,? White Mesa Temporary Well (4-11) Over Time Date Of Measurement A. =: 80.00g o63o; s0.00 qoo 100 00 a$;;ffy,f 9,7;;,f,y,7"y,1;y,!;;,7"y,? White Mesa Temporary Well (4-12) Over Time (l so.oo =j I o6 60.00 =o q@ 70.00o u;;y,i;y:;;y:Ay;;;y:;:y:;;y:;;i;;;y I I I I I I T I I T I I I I t I I I I White Mesa Temporary Well (4-13) Over Time Date Of Moasurement L E .=o o6 =o @o w;;;yi;y:;;y:;;y:;;f ?";y:;:y:;;y!;;y llVhite Mesa Temporary Wel! (4-14) Over Time Date Of Measurement o. =z a0.00I o =o; e0.00 qoEl 't00.00 u;;f ;;;y:Ay:;y;Ay:;;y:;;y:;;y;;:f White Mesa Mill Temporary Well TW4-15 (Over Time) \ n/ "-*'i-$-'*1*,'i-.-'i*,"-i,-'"-.-"*\*,$*u""r-r-"!. 120 t80 =! -9oa Eooo3o 340 Vllhite Mesa Temporary Well (4-16) Over Time 60.00 70.00 80.00 s0.00 100.00 1 't o.00 120_OO u;;:,W:Ay:;;y:;;y:;;yi;y:;;y;;;f . White Mesa Temporary Well (4-17) (MW-32) Over Time Date Of Measurement "atey:;;y:Ay:Ar:Ar;;:y:;;y:;;i:;;y I I I I I I I I I I I I I I I I I I I Temporary Monitoring Well TW4-18 (Over Time) I /\ *$*,'!*,$*'$'i.$*,';**,""**,"i*'!*,'!*''! Vllhite Mesa Temporary Well (4-19) Over Time G =.=o o6 =o eoo 60.00 70.00 80.00 90.00 100.00 110.00 120.00 Date Of lvleasurement w;;y,i;y:;;y:;;y;;y?,;y:;;y:;;y!;:y White Mesa Temporary U\Iell (4-20) Over Time Date Of ltileaaurement '*";?i?,;:,."i:',,"i,,*i;:""!:"1!,,*,,!?,"i:",,,i:*i,,,,,,,,,,,,,,,;:",i,*,!?"!:",,!?,,i,'"A \ ./ \ ,,.\,/Y\/\./\ ,--d \ 30.00 40.00 50.00 60.00 q. =Bq 70.00 o G =I 80.00 Eoo 9o.00 100.00 t I t t t I I I I I I I I I t I t I I White Mesa Temporary Well (4-21) Over Time L E .=! o G3o Eqoo 'a,!"a,;;""!;-,,ffw,i;",,i";*,i,a,1,+"!;a,i;w,i;',,ii;",,,i,'".1 ,i,'",,,* I t I I I t I I I t I I I I t I I I White Mesa Temporary Well(4-221Over Time Date Of Measurement "",i"*;?"!:","!?,,7,'",,ii:',,"!,"30.00 40.00 50.00 60.00 LEj s 70.00 o G =o ao00 qocl 90.00 100.00 I I I t I I I I I I I T I I I I I I T Date of Sample CHCI3 Values Nitrate Values Samolino Event 28-Seo-99 MW.4 6200 Shallow Samole 28-Sep-99 5820 Deeo Sample 28-Sep-99 6020 TotalSamole 15-Mar-00 5520 Quarterly 15-Mar-00 s430 Quarterly 2-Sep-00 5420 9.63 Quarterly 30-Nov-00 6470 9.37 Ouarterlv & Solit Samole 29-Mar-01 4360 8.77 Quarterlv 22-Jun-01 6300 9.02 Quarterly 20-Sep-01 5300 9.45 Quarterly 8-Nov-O1 5200 8 UDEQ Solit Samolinq Event 26-Mar-02 4700 8.19 First 1/4 2002 Samole 22-Mav-02 4300 8.21 Quarterlv 12-Seo-02 6000 8.45 UDEQ Solit Samplinq Event 24-Nov-02 2500 8.1 Quarterly 28-Mar-03 2000 8.3 Quarterly 30-Apr-03 3300 NA Well Pumoino Event Samole 30-May-03 3400 8,2 Well Pumoino Event Sample 23-Jun-03 4300 8.2 2nd Quarter Sampling Event 30-Jul-03 3600 8.1 Well Pumoino Event Samole 29-Auq-03 4100 8,4 Well Pumoinq Event Sample 12-Sep-03 3500 8.5 3rd Quarter Samplinq Event 15-Oct-03 3800 8.1 Well Pumoino Event Samole 8-Nov-O3 3800 8.0 4th Quarter Samolino Event 29-Mar-04 NA Unable to ouroe/sample 22-Jun-04 NA Unable to purqe/sample 17-Seo-04 3300 6.71 3rd Quarter Samolino Event 17-Nov-04 4300 7.5 4th Quarter Samplinq Event 16-Mar-05 2900 6.3 1st Quarter Sampling Event 25-Mav-05 3170 7.1 2nd Quarter Samolino Event 3l-Aus-05 3500 7.0 3rd Quarter Samplinq Event 1-Dec-05 3000 7.0 4th Quarter Sampling Event 9-Mar-06 3 100 6.0 1st Quarter Samolino Event 14-Jun-06 3000 6.0 2nd Quarter Samplinq Event 20-Jul-06 2820 t.2 3rd Quarter Samolinq Event 9-Nov-06 2830 6.4 4th Quarter Samolino Event l5-Aue-07 2600 6.2 3rd Quarter Samolinq Event 10-Oct-07 2300 6.2 4th Quarter Samplinq Event 26-Mar-08 2400 5.8 1st Quarter Samolino Event 25-Jun-08 2500 6.09 2nd Quarter Sampling Event I I I I I I I t I I t I t I I I I I I Date of Samole CHCI3 Values Nitrate Values Samolino Event 28-Jun-99 TW4-1 1 700 7.2 Quarterly 10-Nov-99 5.79 Quarterly 15-Mar-00 1 100 Quarterlv 10-Apr-00 1490 Grab Sample 6-Jun-00 1 530 Quarterlv 2-Seo-00 2320 5.58 Quarterlv 30-Nov-00 3440 7.79 Quarterly & Split Sample 29-Mar-01 2340 7.15 Quarterly 22-Jun-01 6000 8.81 Quarterlv 20-Seo-01 12.8 Quarterlv 8-Nov-O1 3200 12.4 UDEQ Split Samplinq Event 26-Mar-02 3200 13.1 First 1/4 2002 Samole 22-Mav-02 2800 12.7 Quarterly 12-Seo-02 3300 12.8 UDEQ Solit Samolinq Event 24-Nov-02 3500 13.6 Quarterly 28-Mar-03 3000 12.4 Quarterlv 23-Jun-03 3600 12.5 2nd Quarter Samplinq Event 12-Seo-03 2700 12.5 3rd Quarter Samolinq Event B-Nov-03 3400 11.8 4th Quarter Samolino Event 29-Mar-O4 3200 11 1st Quarter Samplinq Event 22-Jun-$4 3100 8.78 2nd Quarter Sampling Event 17-Seo-04 2800 10.8 3rd Quarter Samolino Event 17-Nov-04 3000 11.1 4th Quarter Samolinq Event 16-Mar-05 2700 9.1 1st Quarter Samplinq Event 25-Mav-05 3080 10.6 2nd Quarter Samolino Event 31-Aue-05 2900 9.8 3rd Quarter Samplinq Event l-Dec-05 2400 9.7 4th Quarter Samplinq Event 9-Mar-06 2700 9.4 1st Quarter Samolino Event l4-Jun-06 2200 9.6 2nd Quarter Samplinq Event 20-Ju1-06 2840 9.2 3rd Quarter Sampling Event 8-Nov-06 2260 9.2 4th Quarter Samolino Event 15-Auo-07 2300 8.4 3rd Quarter Samolino Event 10-Oct-07 2000 7.8 4th Quarter Samolino Event 26-Mar-08 2000 7.6 1st Quarter Samolino Event 25-Jun-08 1 900 8.68 2nd Quarter Samolinq Event I I I I I I I I t I t I I I I t I I t Date of Sample CHCI3 Values Nitrate Values Samplinq Event 10-Nov-99 rw4-2 2510 Quarterly 2-Sep-00 5220 Quarterlv 28-Nov-00 4220 10.7 Quarterly & Split Sample 29-Mar-01 3890 10.2 Quarterly 22-Jun-01 5500 9.67 Quarterly 20-Seo-01 4900 11.4 Quarterly 8-Nov-01 5300 10.1 UDEO Solit Samolinq Event 26-Mar-02 5100 9.98 First 1/4 2002 Sample 23-May-02 4700 9.78 Quarterly 12-Seo-02 6000 9.44 UDEO Solit Samolinq Event 24-Nov-O2 5400 10.4 Quarterly 28-Mar-03 4700 9.5 Quarterly 23-Jun-03 5100 9.6 2nd Quarter Samolino Event 12-Seo-03 3200 8.6 3rd Quarter Samolinq Event 8-Nov-O3 4700 9.7 4th Quarter Sampling Event 29-Mar-04 4200 9.14 1st Quarter Samolino Event 22-Jun-$4 4300 8.22 2nd Quarter Samolino Event 17-Seo-04 41 00 8.4 3rd Quarter Samplinq Event 17-Nov-04 4500 8.6 4th Quarter Samplinq Event 16-Mar-05 3700 7.7 1st Quarter Samplinq Event 25-Mav-05 3750 8.6 2nd Quarter Sampling Event 31-Aue-05 3900 8.0 3rd Quarter Samolino Event l-Dec-05 3500 7.8 4th Quarter Samplinq Event 9-Mar-06 3800 7.5 1st Quarter Samplinq Event l4-Jun-06 3200 7.1 2nd Quarter Samolino Event 20-Jul-06 4120 7.4 3rd Quarter Samolinq Event 8-Nov-O6 3420 7.6 4th Quarter Samplino Event 1S-Auo-07 3400 7.3 3rd Quarter Samplinq Event 10-Oct-07 3200 4th Quarter Samolino Event 26-Mar-08 3300 6.9 1st Quarter Samplino Event 25-Jun-08 3100 7.44 2nd Quarter Samplinq Event t I I I I t I I I I I I t t t I I I t Date of Samole CHCI3 Values Nitrate Values Samolino Event 28-Jun-99 TW4-3 3500 7.6 Quarterlv 29-Nov-99 702 Quarterly 15-Mar-00 834 Quarterlv 2-Seo-00 836 1.56 Quarterly 29-Nov-00 836 1.97 Ouarterlv & Solit Samole 27-Mar-01 347 1.85 Quarterly 21-Jun-01 390 2.61 Quarterlv 20-Sep-01 300 3.06 Quarterlv 7-Nov-01 170 3.6 UDEQ Split Samplinq Event 26-Mar-02 11 3.87 First 1/4 2002 Samole 21-Mav-OZ 204 4.34 Quarterly 12-Sep-02 203 4.32 UDEO Solit Samolino Event 24-Nov-02 102 4.9 Quarterlv 28-Mar-03 ND 4.6 Quarterly 23-Jun-03 ND 4.8 2nd Quarter Samolinq Event 12-Sep-03 ND 4.3 3rd Quarter Samplinq Event 8-Nov-03 ND 4.8 4th Quarter Samplins Event 29-Mar-O4 ND 4.48 1st Quarter Samolino Event 22-Jun-l4 ND 3.68 2nd Quarter Samolinq Event 17-Seo-04 ND 3.88 3rd Quarter Samolino Event 17-Nov-04 ND 4.1 4th Quarter Samolino Event 16-Mar-05 ND 3.5 1st Quarter Samplino Event 25-Mav-O5 ND 3.7 2nd Quarter Samolino Event 3l-Aus-05 ND 3.5 3rd Quarter Samolino Event l-Dec-05 ND J.J 4th Quarter Samplinq Event 9-Mar-06 ND J.J 1st Quarter Samolino Event 14-Jun-06 ND 3.2 2nd Quarter Samplinq Event 20-Jul-06 ND 2.9 3rd Quarter Samolinq Event 8-Nov-O6 ND 1.5 4th Quarter Samplinq Event 28-Feb-07 ND 3.1 1st Quarter Samplinq Event 27-Jun-07 ND 3.3 2nd Quarter Samolino Event l5-Aue-2007 ND 3.1 3rd Ouarter Samplins Event r011012007 ND 2.8 4th Ouarter Samolins Event 26-Mar-08 ND 2.8 1st Quarter Samolino Event 25-Jun-08 ND 2.85 2nd Quarter Samplinq Event I I I I t I I I I I I I I I I I I I I Date of Samole CHCI3 Values Nitrate Values Samplinq Event 6-Jun-00 1\ t4-4 ND lnitial 2-Sep-00 ND Quarterly 28-Nov-00 3.85 1.02 Quarterlv & Split Sample 28-Mar-01 2260 14.5 Quarterly 20-Jun-01 31 00 14 Quarterly 20-Seo-01 3200 14.8 Quarterly 8-Nov-01 2900 15 UDEQ Split Samplinq Event 26-Mar-02 3400 13.2 First 1/4 2002 Sample 22-Mav-02 3200 13.4 Quarterly 12-Sep-02 4000 12.6 UDEQ Split Samplins Event 24-Nov-O2 3800 13.4 Quarterly 28-Mar-03 3300 12.8 Quarterly 23-Jun-03 3600 12.3 2nd Quarter Samolino Event 12-Sep-03 2900 12.3 3rd Quarter Samolinq Event 8-Nov-03 3500 12.2 4th Quarter Samplinq Event 29-Mar-04 3200 12.1 1st Quarter Samolinq Event 22-Jun-04 3500 11.1 2nd Quarter Sampling Event 17-Sep-04 31 00 10.8 3rd Quarter Samolinq Event 17-Nov-04 3600 11.6 4th Quarter Samplinq Event 16-Mar-05 31 00 10 1st Quarter Samplinq Event 25-Mav-O5 2400 I 1.3 2nd Quarter Samplinq Event 3l-Aue-05 3200 9.S 3rd Quarter Samplinq Event l-Dec-05 2800 10.2 4th Quarter Sampling Event 9-Mar-O6 2900 9.5 1st Quarter Samolinq Event l4-Jun-06 2600 8.6 2nd Quarter Samplinq Event 20-Jul-06 2850 9.7 3rd Quarter Samolinq Event 8-Nov-O6 2670 10.1 4th Quarter Sampling Event 2B-Feb-07 2200 9.0 1st Quarter Samolinq Event 27-Iun-07 2400 9.4 2nd Ouarter Sampling Event 15-Aue-07 2700 9.5 3rd Ouarter Samolins Event l0-Oct-07 2500 9.5 4th Ouarter Samolins Event 26-Mar-08 2800 9.2 lst Ouarter Samplins Event 25-Jun-08 2500 10.8 2nd Ouarter Sampling Event I I I I T t I T I I I I t I I I I I I Date of Samole CHCI3 Values Nitrate Values Samolino Event 20-Dec-99 TW4-5 29.5 Quarterly 15-Mar-00 49 Quarterlv 2-Sep-00 124 .86 Quarterlv 29-Nov-00 255 3.16 Quarterly & Split Sample 28-Mar-01 236 3.88 Quarterlv 20-Jun-01 240 6.47 Quarterly 20-Seo-01 240 2.1 Quarterlv 7-Nov-O1 260 5.2 UDEQ Solit Samolinq Event 26-Mar-02 260 2.54 First 1/4 2002 Sample 22-Mav-O2 300 3.05 Quarterlv 12-Seo-02 330 4.61 UDEQ Solit Samplino Event 24-Nov-02 260 1.1 Quarterly 28-Mar-03 240 1.9 Quarterly 23-Jun-03 290 3.2 2nd Quarter Samolino Event 12-Seo-03 200 4 3rd Quarter Samplinq Event 8-Nov-03 240 4.6 4th Quarter Samolino Event 29-Mar-04 210 4.99 1st Quarter Samplinq Event 22-Jun-$4 200 4.78 2nd Quarter Samolino Event 17-Seo-04 150 4.79 3rd Quarter Samolino Event 17-Nov-04 180 5.1 4th Quarter Samplinq Event 16-Mar-05 120 4.9 1st Quarter Samolino Event 25-Mav-05 ll3 3.t 2nd Quarter Samplino Event 3l-Aus-05 82 6.0 3rd Quarter Samplinq Event 1-Dec-05 63 6.0 4th Quarter Samollno Event 9-Mar-06 66 6.0 1st Quarter Samplinq Event 14-Jun-06 51 5.9 2nd Quarter Samolino Event 20-Jul-06 53.70 3rd Quarter Samplinq Event 8-Nov-06 47.10 2.9 4th Quarter Samplinq Event 28-Feb-07 33 7.8 1st Quarter Samplino Event 27-Jw-07 26 7.0 2nd Ouarter Sampling Event l5-Aus-07 9.2 7.7 3rd Ouarter Samolins Event lO-Oct-17 9.5 8.2 4th Ouarter Samolins Event 26-Mar-08 l1 7.4 lst Ouarter Sampline Event 25-Jun-08 9.3 8.7 2nd Ouarter Samolins Event I t I I I I I t I I T I I I t I I I t Date of Samole CHCI3 Values Nitrate Values Samolinq Event 6-Jun-00 TW4-6 ND lnitial 2-Sep-00 ND Quarterly 28-Nov-00 ND ND Quarterlv & Solit Samole 26-Mar-01 ND .13 ' Ouarterlv 20-Jun-01 ND ND Quarterly 20-Sep-01 3.6 ND Quarterly 7-Nov-01 1.00 ND UDEQ Solit Samolinq Event 26-Mar-02 ND ND First 1/4 2002 Sample 21-Mav-02 ND ND Quarterly 12-Seo-02 ND ND UDEQ Solit Samolinq Event 24-Nov-02 ND ND Quarterly 28-Mar-03 ND 0.1 Quarterly 23-Jun-03 ND ND 2nd Quarter Samolinq Event 12-Seo-03 ND ND 3rd Quarter Samolino Event 8-Nov-03 ND ND 4th Quarter Samolino Event 29-Mar-04 ND ND 1st Quarter Samplinq Event 22-Jun-04 ND ND 2nd Quarter Sampling Event 17-Seo-04 ND ND 3rd Quarter Samolinq Event 17-Nov-04 ND ND 4th Quarter Samplinq Event 16-Mar-05 ND 0.2 1st Quarter Samolino Event 25-Mav-05 ND 0.4 2nd Quarter Samplinq Event 3l-Aus-05 10.0 0.5 3rd Quarter Samplinq Event l-Dec-05 17.0 0.9 4th Quarter Samolino Event 9-Mar-06 31.0 1.2 1st Quarter Sampling Event 14-Jun-06 19.0 1.0 2nd Quarter Samolino Event 20-Jul-06 I 1.00 0.6 3rd Quarter Samplino Event 8-Nov-06 42.80 1.4 4th Quarter Samolino Event 28-Feb-07 46 1.5 1st Quarter Samolino Event 2'7-lun-07 0.1 I 0.6 2nd Ouarter SamolinE Event l5-Aue-07 18 0.7 3rd Ouarter Samolins Event 10-Oct-07 t8 0.8 4th Ouarter Samoline Event 26-3-08 52 1.1 lst Ouarter Samplins Event 25-Jun-08 24 0.9 2nd Ouarter Samplins Event I I I t I I t I I I I I I T T I t I I Date of Sample CHCI3 Values Nitrate Values Samolino Event 29-Nov-99 TW4-7 256 Quarterly 15-Mar-00 616 Quarterlv 2-Seo-00 698 Quarterly 29-Nov-O0 684 1.99 Quarterlv & Solit Samole 28-Mar-01 747 2.46 Quarterly 20-Jun-01 1 100 2.65 Quarterly 20-Seo-01 1200 3.38 Quarterlv 8-Nov-01 1 100 2.5 UDEQ Split Samplinq Event 26-Mar-02 1 s00 3.76 First 1/4 2002 Samole 23-Mav-02 1600 3.89 Quarterlv 12-Seo-02 1 500 3.18 UDEQ Solit Samplinq Event 24-Nov-02 2300 4.6 Quarterly 28-Mar-03 1800 4.8 Quarterlv 23-Jun-03 5200 7.6 2nd Quarter Samolinq Event 12-Sep-03 3600 7.6 3rd Quarter Samplinq Event B-Nov-03 4500 7.1 4th Quarter Samolino Event 29-Mar-04 2500 4.63 1st Quarter Samplinq Event 22-Jun-04 2900 4.83 2nd Quarter Samplinq Event 17-Seo-04 31 00 5.59 3rd Quarter Samolino Event 17-Nov-04 3800 6 4th Quarter Samplinq Event 16-Mar-O5 31 00 5.2 1st Quarter Samolino Event 25-Mav-O5 2700 5.4 2nd Quarter Samplinq Event 31-Aue-05 31 00 5.2 3rd Quarter Samplinq Event l-Dec-05 2500 5.3 4th Quarter Samplinq Event 9-Mar-06 1900 1.0 1st Quarter Samolino Event l4-Jun-06 2200 4.5 2nd Quarter Samolino Event 20-Jul-06 2140 4.7 3rd Quarter Samplins Event 8-Nov-06 2160 4.6 4th Quarter Samplins Event 28-Feb-07 1 800 5 lst Quarter Samplinq Event 27-lun-07 2600 5.1 2nd Ouarter Samolins Event l4-Aue-07 2300 4.7 3rd Ouarter Samplins Event l0-Oct-07 1900 4.7 4th Ouarter Samplins Event 26-Mar-08 2200 4.2 lst Ouarter Samolins Event 25-Jun-08 1800 4.8 2nd Ouarter Samolins Event I I I I I I I I I t I I t I I I T I I Date of Samole TW4-B CHCI3 Values Nitrate Values Samolino Event 29-Nov-99 ND Quarterly 15-Mar-00 21.8 Quarterly 2-Seo-00 102 Quarterly 29-Nov-00 107 ND Quarterlv & Split Sample 26-Mar-01 116 ND Quarterly 20-Jun-01 180 ND Quarterly 20-Seo-01 180 0.35 Quarterly 7-Nov-01 180 ND UDEO Solit Samolinq Event 26-Mar-02 190 0.62 First 1/4 2002 Sample 22-Mav-02 210 0.77 Quarterlv 12-Seo-02 300 ND UDEQ Split Samolinq Event 24-Nov-02 450 ND Quarterly 28-Mar-03 320 0.8 Quarterly 23-Jun-03 420 ND 2nd Quarter Samplino Event 12-Seo-03 66 ND 3rd Quarter Samolinq Event B-Nov-O3 21.0 0.1 4th Quarter Samplinq Event 29-Mar-04 24 0.65 1st Quarter Samolino Event 22-Jun-l4 110 0.52 2nd Quarter Samplinq Event 17-Sep-04 120 ND 3rd Quarter Samplinq Event 17-Nov-04 120 ND 4th Quarter Samplinq Event 16-Mar-05 10.0 ND 1st Quarter Samplinq Event 25-Mav-05 ND 0.2 2nd Quarter Samplinq Event 3l-Aue-05 1.1 ND 3rd Quarter Samplinq Event l-Dec-05 ND ND 4th Quarter Sampling Event 9-Mar-O6 1.3 0.3 1st Quarter Samplinq Event 14-Jun-06 ND ND 2nd Quarter Samolinq Event 20-Jul-06 ND 0.1 3rd Quarter Samolinq Event 8-Nov-O6 ND ND 4th Quarter Samolinq Event 28-Feb-O7 2.50 o.7 1st Quarter Samplinq Event 27-Jun-07 2.5 0.2 2nd Ouarter Sampline Event l5-Aus-07 1.5 ND 3rd Ouarter Samolins Event l0-Oct-O7 3.5 0.5 4th Ouarter Samoline Event 26-Mar-08 ND 0.1 lst Ouarter Sampline Event 25-Jun-O8 ND ND 2nd C)uarter Samolins Event T I I I I I I I I I I T I I I I t I I Date of Samole TW4-9 CHCI3 Values Nitrate Values Samolinq Event 20-Dec-99 4.24 Quarterly 15-Mar-00 1.88 Quarterly 2-Seo-00 14.2 Quarterly 29-Nov-O0 39.4 ND Quarterlv & Solit Samole 27-Mar-01 43.6 ND Quarterlv 20-Jun-01 59 .15 Quarterly 20-Seo-01 19 0.40 Quarterly 7-Nov-O1 49 0.1 UDEQ Solit Samolino Event 26-Mar-02 41 0.5 First 1/4 2002 Samole 22-Mav-O2 38 0.65 Quarterlv 12-Sep-02 49 0.2 UDEQ Solit Samplinq Event 24-Nov-O2 51 0.6 Quarterly 28-Mar-03 34 0.6 Quarterlv 23-Jun-03 33 0.8 2nd Quarter Samplinq Event 12-Seo-03 32 1.1 3rd Quarter Samolino Event 8-Nov-O3 46 1.1 4th Quarter Samolino Event 29-Mar-04 48 0.82 1st Quarter Samolinq Event 22-Jun-$4 48 0.75 2nd Quarter Samplino Event 17-Seo-04 39 0.81 3rd Quarter Samolino Event 17-Nov-04 26 1.2 4th Quarter Samolino Event 16-Mar-05 3.8 1.3 1st Quarter Samplinq Event 25-Mav-05 1.2 1.3 2nd Quarter Samolino Event 3l-Aue-05 ND 1.3 3rd Quarter Samolino Event l-Dec-05 ND 1.3 4th Quarter Samolino Event 9-Mar-06 ND 1.5 1st Quarter Samplinq Event l4-Jun-06 ND 1.5 2nd Quarter Samolino Event 20-Jul-06 ND 0.9 3rd Quarter Samplino Event 8-Nov-06 ND 0.7 4th Quarter Samolino Event 2B-Feb-07 ND 0.6 1st Quarter Samolino Event 27-hn-O7 2t 1.3 2nd Ouarter Samolins Event 15-Aue-07 9.5 1.8 3rd Ouarter Samolins Event 10-Oct07 8.7 2 4th Ouarter Samplins Event 26-Mar-08 1.3 2.1 lst Ouarter Sampline Event 25-Jun-08 1.0 2.3 2nd Ouarter Samolins Event t I I I I I I I I I T t T I I I I I I Date of Samole TW4-10 CHCI3 Values Nitrate Values Samplino Event 21-Jan-02 14 lnitialSamole 26-Mar-O2 16 0.14 First 1/4 2002 Sample 21-Mav-02 17 0.11 Quarterly 12-Seo-02 6.0 ND UDEQ Solit Samplino Event 24-Nov-02 14 ND Quarterlv 28-Mar-03 29 0.2 Quarterly 23-Jun-03 110 0.4 2nd Quarter Samolino Event 12-Seo-03 74 0.4 3rd Quarter Samolino Event B-Nov-03 75 0.3 4th Quarter Samolino Event 29-Mar-04 22 0.1 1st Quarter Samplinq Event 22-Jun-04 32 ND 2nd Quarter Samolino Event 17-Seo-04 63 0.46 3rd Quarter Samolino Event 17-Nov-04 120 0.4 4th Quarter Samolino Event 16-Mar-05 140 1.6 1st Quarter Samolino Event 25-Mav-05 62.4 0.8 2nd Quarter Samolino Event 31-Aue-05 110 l.l 3rd Quarter Samolino Event l-Dec-05 300 J.J 4th Quarter Samplinq Event 9-Mar-06 190 2.4 1st Quarter Samolino Event 14-Jun-06 300 3.5 2nd Quarter Samolino Event 20-Jul-06 s04.00 6.8 3rd Quarter Samolinq Event B-Nov-O6 452.00 5.7 4th Quarter Samolinq Event 28-Feb-07 500 7.6 lst Ouarter Samplins Event 27-Iun-07 3s0 5.1 2nd Ouarter Samolins Event l5-Aus-07 660 t.)3rd Ouarter Samolins Event l0-Oct-07 470 6.7 4th Ouarter Samplins Event 26-Mar-08 620 7.3 lst Ouarter Samolins Event 25-Jun-08 720 9.91 2nd Ouarter Samplins Event t I I I I I I I I t I I I I T I I I t Date of Sample TW4-11 CHCI3 Values Nitrate Values Samolino Event 21-Jan-02 4700 lnitialSamole 26-Mar-02 4900 9.60 First 1/4 2002 Sample 22-Mav-02 5200 9.07 Quarterly 12-Sep-02 6200 8.84 UDEQ Solit Samplinq Event 24-Nov-O2 5800 9.7 Quarterlv 28-Mar-03 51 00 9.7 Quarterlv 23-Jun-03 5700 9.4 2nd Quarter Samplinq Event 12-Seo-03 4600 9.9 3rd Quarter Samolinq Event 8-Nov-O3 5200 9.3 4th Quarter Samolino Event 29-Mar-04 5300 9.07 1st Quarter Samolinq Event 22-Jun-04 5700 8.74 2nd Quarter Samplinq Event 17-Seo-04 4800 8.75 3rd Quarter Samolino Event 17-Nov-04 sB00 9.7 4th Quarter Samolinq Event 16-Mar-05 4400 8.7 1st Quarter Samplinq Event 25-Mav-05 3590 10.3 2nd Quarter Samolino Event 3l-Aue-05 4400 9.4 3rd Quarter Samolino Event l-Dec-05 4400 9.4 4th Quarter Samplinq Event 9-Mar-06 4400 9.2 1st Quarter Samolino Event 14-Jun-06 4300 10 2nd Quarter Samolinq Event 20-Jul-06 4080 10 3rd Quarter Samplinq Event 8-Nov-06 3660 10 4th Quarter Samolino Event 28-Feb-07 3500 10.1 1st Quarter Samolinq Event 27-Iwr-O7 3800 10.6 2nd Ouarter Sampline Event l5-Aus-07 4500 10.2 3rd Ouarter Sampline Event 10-Oct-07 4400 9.8 4th Ouarter Samolins Event 26-Mar-08 340 7.7 lst Ouarter Samplins Event 25-Jun-08 640 7.28 2nd Ouarter Sampline Event I I T I I I I I I I I I t I I I T I I Date of Samole TW4-12 CHCI3 Values Nitrate Values Samplinq Event 12-Sep-02 1.5 2.54 UDEO Solit Samolino Event 24-Nov-02 ND 2.2 Quarterlv 28-Mar-03 ND 1.9 Quarterly 23-Jun-03 ND 1.8 2nd Quarter Samolino Event 12-Seo-03 ND 1.8 3rd Quarter Samplino Event 9-Nov-03 ND 1.6 4th Quarter Samolino Event 29-Mar-04 ND 1.58 1st Quarter Samolino Event 22-Jun-04 ND 1.4 2nd Quarter Samplinq Event 17-Seo-04 ND 1.24 3rd Quarter Samolino Event 17-Nov-04 ND 1.5 4th Quarter Samplinq Event 16-Mar-05 ND 4 1st Quarter Samplinq Event 25-Mav-05 ND .6 2nd Quarter Samplinq Event 3l-Aus-05 ND .5 3rd Quarter Samolino Event l-Dec-05 ND 4 4th Quarter Samolino Event 9-Mar-06 ND J 1st Quarter Samolinq Event t4-Jun-06 ND .4 2nd Quarter Samolinq Event 20-Jul-06 ND .4 3rd Quarter Samplinq Event 8-Nov-O6 ND 4 4th Quarter Samolino Event 28-Feb-07 ND 5 1st Quarter Samolino Event 27-lun-07 ND 5 2nd Ouarter Samolins Event Aus-15-07 ND 4 3rd Ouarter Samplins Event l0-Oct-07 ND 4 4th Ouarter Sampline Event 26-Mar-08 ND .6 lst Ouarter Samplins Event 25-Jun-08 ND 2.69 2nd Ouarter Samplins Event I I I I I t I T I I I I I I I T t I I Date of Sample TW4-13 CHCI3 Values Nitrate Values Samolino Event l2-Seo-02 ND ND UDEO Solit Samolino Event 24-Nov-02 ND ND Quarterlv 28-Mar-03 ND 0.2 Quarterlv 23-Jun-03 ND 0.2 2nd Quarter Samplinq Event I 2-Sep-03 ND ND 3rd Quarter Samolinq Event 9-Nov-03 ND 0.9 4th Quarter Samplinq Event 29-Mar-04 ND o.t2 1st Quarter Samolino Event 22-lvn-04 ND o.t7 2nd Quarter Samolino Event l7-Seo-04 ND 4.43 3rd Quarter Samolino Event l7-Nov-04 ND 4.7 4th Quarter Samplino Event l6-Mar-05 ND 4.2 1st Quarter Samplinq Event 25-Mav-05 ND 4.3 2nd Quarter Samolino Event 3l-Aus-05 ND 4.6 3rd Quarter Samolino Event 1-Dec-05 ND 4.3 4th Quarter Samolino Event 9-Mar-06 ND 4.2 1st Quarter Samolino Event l4-Jun-06 ND 4.9 2nd Quarter Samplinq Event 20-Jul-06 ND 4.3 3rd Quarter Samplinq Event 8-Nov-06 ND 0.8 4th Quarter Samolino Event 28-Feb-07 ND 4 1st Quarter Samolino Event 27-Jun-07 ND 4.6 2nd Quarter Samolino Event l5-Aus-07 ND 4.4 3rd Quarter Samolino Event l0-Oct-07 ND 4.1 4th Quarter Samolino Event 26-Mar-08 ND 3.8 1st Quarter Samolinq Event 25-Jun-O8 ND 4.24 2nd Quarter Samplinq Event I I I I t I I I I t I T I I I I I I I Date of Samole TW4-15 CHCI3 Values Nitrate Values Samolinq Event I 2-Sep-02 2.6 ND UDEQ Split Samplinq Event 24-Nov-02 ND ND Quarterly 28-Mar-03 ND 0.1 Quarterlv 23-Jun-03 7800 14.5 2nd Quarter Samplinq Event 15-Aus-03 7400 r6.8 Well Pumoino Event Samole l2-Seo-03 2s00 2.7 3rd Quarter Samolino Event 25-Sep-03 2600 2.s Well Pumoino Event Samole 29-Oct-03 3100 3.1 Well Pumpino Event Sample 8-Nov-03 3000 2.8 4th Quarter Samolino Event 29-Mar-04 NA NA Unable to ouroe/sample 22-Ivn-04 NA NA Unable to ouroe/samole l7-Sep-04 1400 0.53 3rd Quarter Samolino Event l7-Nov-04 300 0.2 4th Quarter Samolinq Event l6-Mar-05 310 0.3 1st Quarter Samplinq Event 30-Mar-05 230 0.2 1st Quarter POC Samolinq 25-Mav-05 442 0.2 2nd Quarter Samolino Event 31-Aus-05 960 0.2 3rd Quarter Samolino Event l-Dec-05 1000 0.3 4th Quarter Samolino Event 9-Mar-06 l 100 0.2 1st Quarter Samplinq Event l4-Jun-06 830 0.2 2nd Quarter Samplinq Event 20-Jul-06 2170 t.4 3rd Quarter Samolino Event 8-Nov-06 282 0.3 4th Quarter Samolino Event 28-Feb-07 s70 0.5 1st Quarter Samolino Event 27-Jur-07 300 0.4 2nd Quarter Samolino Event l5-Aue-07 1400 3rd Quarter Samolino Event l0-Oct-07 2000 0.6 4th Quarter Samolino Event 26-Mar-08 930 0.1 1st Quarter Samolino Event 25-Jun-08 1300 0.56 2nd Quarter Sampling Event I t I I I I t I I I I I I I I I I I I Date of Samole TW4-16 CHCI3 Values Nitrate Values Samolino Event l2-Seo-02 t40 ND UDEQ Solit Samolino Event 24-Nov-02 200 ND Quarterly 28-Mar-03 260 ND Quarterly 23-Jun-03 370 ND 2nd Quarter Samplinq Event l2-Sep-03 350 ND 3rd Quarter Samolino Event 8-Nov-03 400 ND 4th Quarter Samplinq Event 29-Mar-04 430 ND 1st Quarter Samolino Event 22-hn-O4 530 ND 2nd Quarter Samolino Event l7-Seo-04 400 ND 3rd Quarter Samolino Event l7-Nov-04 350 ND 4th Quarter Samolino Event l6-Mar-05 240 ND 1st Quarter Samolino Event 25-Mav-05 212 ND 2nd Quarter Samplino Event 3l-Aus-05 85 ND 3rd Quarter Samolino Event l-Dec-05 t4 1.4 4th Quarter Samolino Event 9-Mar-06 39 3.0 1st Quarter Samolino Event l4-Jun-06 l3 1.9 2nd Quarter Samplinq Event 20-Jul-06 5 2.7 3rd Quarter Samolino Event 8-Nov-06 t3.6 5.6 4th Quarter Samolino Event 28-Feb-07 8.70 12.3 1st Quarter Samolino Event 27-Jun-07 2.60 9.9 2nd Quarter Samolino Event l5-Aus-07 7.10 5.4 3rd Quarter Samolinq Event 10-Oct-07 1.40 4.4 4th Quarter Samolinq Event 26-Mar-08 I 1.00 ND 1st Quarter Samplinq Event 25-Jun-08 ND t.46 2nd Quarter Sampling Event I I I T I I I I I I I I T I T T I T I Date of Samole TW4-17 CHCI3 Values Nitrate Values Samolinq Event l2-Seo-02 1.6 ND UDEQ Solit Samplinq Event 24-Nov-02 ND ND Quarterly 28-Mar-03 ND ND Quarterly 23-Jun-03 ND ND 2nd Quarter Samolino Event l2-Sep-03 ND ND 3rd Quarter Samolino Event 8-Nov-03 ND ND 4th Quarter Samolino Event 29-Mar-04 ND ND 1st Quarter Samolino Event 22-Jw-04 ND ND 2nd Quarter Samolinq Event l7-Seo-04 ND ND 3rd Quarter Samolinq Event l7-Nov-04 ND ND 4th Quarter Samplino Event l6-Mar-05 ND ND 1st Quarter Samolino Event 30-Mar-05 ND ND 1st Quarter POC Samolino 25-Mav-05 ND ND 2nd Quarter Samolinq Event 3l-Aue-05 ND ND 3rd Quarter Samolino Event l-Dec-05 ND ND 4th Quarter Samolinq Event 9-Mar-06 ND ND 1st Quarter Samolino Event l4-Jun-06 ND ND 2nd Quarter Samolino Event 20-Jul-06 ND ND 3rd Quarter Samplino Event 8-Nov-06 ND ND 4th Quarter Samplino Event 28-Feb-07 ND ND 1st Quarter Samplino Event 27-Jun-07 ND ND 2nd Quarter Samolino Event l5-Aus-07 ND ND 3rd Quarter Samolino Event l0-Ocr07 ND ND 4th Quarter Samolino Event 26-Mar-08 ND ND 'tst Quarter Samolino Event 25-Jun-08 ND ND 2nd Quarter Samolino Event T I I I I I I I I T t I I t T T I I I Date of Samole CHCI3 Values Nitrate Values Samolino Event l2-Sep-02 TW4-18 440 1.49 UDEQ Solit Samolino Event 24-Nov-02 240 13.3 Quarterlv 28-Mar-03 160 l3.l Quarterlv 23-Jun-03 110 l9 2nd Quarter Samolinq Event l2-Seo-03 68 t9.9 3rd Quarter Samolinq Event 9-Nov-03 84 20.7 4th Quarter Samplinq Event 29-Mar-04 90 t4 1st Quarter Samplinq Event 22-Jlur;.04 82 t2.2 2nd Quarter Samplinq Event l7-Sep-04 38 t4.s 3rd Quarter Samolino Event l7-Nov-04 5l t7.3 4th Quarter Samolino Event l6-Mar-05 38 t4.l 1st Quarter Samplinq Event 25-Mav-05 29.8 12.9 2nd Quarter Samplinq Event 31-Aus-05 39 13.3 3rd Quarter Samolino Event l-Dec-05 t4 7.3 4th Quarter Samolino Event 9-Mar-06 t2 5.9 1st Quarter Samplinq Event l4-Jun-06 t2 4.7 2nd Quarter Samolino Event 20-Jul-06 10.80 6.1 3rd Quarter Samolinq Event 8-Nov-06 139.00 8.7 4th Quarter Samplinq Event 28-Feb-07 9.2 5.1 1st Quarter Samolino Event 27-hn-O7 8.0 4.9 2nd Quarter Samolino Event l5-Aus-07 8.9 5 3rd Quarter Samolino Event l0-Oct-08 7.4 4.4 4th Quarter Samolinq Event 26-Mar-08 6.4 0.7 1st Quarter Samplinq Event 25-Jun-08 5.7 4.55 2nd Quarter Samplinq Event I I I I I I t I t I T I I I I t I I I Date of Samole TW4-19 CHCI3 Values Nitrate Values Samplinq Event 12-Sep-02 7700 47.6 UDEQ Solit Samplinq Event 24-Nov-02 5400 42 Quarterly 28-Mar-03 4200 61.4 Quarterlv l5-Mav-03 4700 NA Well Pumoino Event Samole 23-Jun-03 4500 tl.4 2nd Quarter Samolino Event l5-Jul-03 2400 6.8 Well Pumoino Event Sample l5-Aue-03 2600 4 Well Pumoino Event Samole l2-Sep-03 2500 5.7 3rd Quarter Samolino Event 25-Seo-O3 4600 9.2 Well Pumoino Event Samole 29-Oct-03 4600 7.7 Well Pumoinq Event Sample 9-Nov-03 2600 4.8 4th Quarter Samplinq Event 29-Mar-04 NA NA Unable to purqe/sample 22-Jun-04 NA NA Unable to purge/sample 6-Aus-04 7100 9.91 Well Pumoino Event Samole 7-Sep-04 2600 4.5 3rd Quarter Samolino Event 7-Nov-04 1800 3.6 4th Quarter Samplino Event 6-Mar-05 2200 5.3 1st Quarter Samolinq Event 25-Mav-05 r200 5.7 2nd Quarter Samolinq Event 3l-Aue-05 1 400 4.6 3rd Quarter Samolino Event l-Dec-05 2800 ND 4th Quarter Samolinq Event 9-Mar-06 1200 4.0 1st Quarter Samolino Event l4-Jun-06 I 100 5.2 2nd Quarter Samolino Event 20-Jul-06 tt20 4.3 3rd Quarter Samolinq Event 8-Nov-07 1050 4.6 4th Quarter Samolino Event 28-Feb-07 1200 4 1st Quarter Samolino Event 27-hn-07 1800 2.3 2nd Quarter Samolino Event l5-Aus-07 I 100 4.1 3rd Quarter Samolino Event l0-Oct-08 r 100 4 4th Quarter Samolinq Event 26-Mar-08 1800 2.2 1ar Quarter Samplinq Event 25-Jun-08 1000 2.81 2nd Quarter Samplinq Event I I I I t I t I I I I I I I I I I I I Date of Sample TW4-20 CHCI3 Values Nitrate Values Samolino Event 25-Mav-05 39000 l0.l 2nd Quarter Samolino Event 3l-Aue-05 3800 2.9 3rd Quarter Samolinq Event 1-Dec-05 19000 1.8 4th Quarter Samolino Event 9-Mar-06 9200 3.8 1st Quarter Samplino Event 14-Jun-06 61000 9.4 2nd Quarter Sampling Event 20-Ju1-06 5300 2.9 3rd Quarter Samplinq Event 8-Nov-06 r 1000 3.5 4th Quarter Sampling Event 28-Feb-07 4400 4.2 1st Quarter Sampling Event 27-Jrxr-0"l 1800 2.3 2nd Quarter Sampling Event l5-Aus-07 5200 2.1 3rd Quarter Samplinq Event l0-Oct-08 9000 5.6 4th Quarter Sampling Event 26-Mar-08 13000 0.9 1st Quarter Samolino Event 25-Jun-08 30000 7.96 2nd Quarter Samolinq Event I t t I I I I I I I I t I I I I I I I Date of Samole TW4-21 CHCI3 Values Nitrate Values Samolinq Event 25-Mav-05 t92 14.6 2nd Quarter Sampling Event 3l-Aue-05 78 l0.l 3rd Quarter Samplinq Event 1-Dec-05 86 9.6 4th Quarter Samolinq Event 9-Mar-06 t20 8.5 1st Quarter Samplinq Event 14-Jun-06 130 10.2 2nd Quarter Samolino Event 20-Jul-06 106 8.9 3rd Quarter Samolinq Event 8-Nov-06 12.5 5.7 4th Quarter Samplino Event 28-Feb-07 160 8.7 1st Quarter Samolinq Event 27-Iun-O1 300.0 8.6 2nd Quarter Samplinq Event l5-Aue-07 140 8.6 3rd Quarter Samplinq Event 10-Oct-07 120 8.3 4th Quarter Samolinq Event 26-Mar-08 380 14.3 1st Quarter Samplinq Event 25-Jun-O8 r60 8.81 2nd Quarter Samolino Event I I I T I I I I I I I t I I I I I I I Date of Sample TW4-22 CHCI3 Values Nitrate Values Samolino Event 25-Mav-05 340 8.2 2nd Quarter Samplino Event 31-Aue-05 290 5.7 3rd Quarter Samplino Event l-Dec-05 320 5.1 4th Quarter Samplinq Event 9-Mar-O6 390 5.3 1st Quarter Samolino Event 06/14/06 280 4.3 2nd Quarter Samolino Event 07/20106 864 4.5 3rd Ouarter Samplins Event l l/08/06 350 5.9 4th Ouarter Samolins Event 28-Feb-07 440 20.9 lst Ouarter Sampling Event 06t27t07 740 19.3 2nd Ouarter Samoline Event Aue-15-07 530 r9.3 3rd Ouarter Sampline Evenl Oct-10-08 440 18.8 4th Ouarter Samolins Event 03/26108 1400 39.1 lst Ouarter Samolins Event 06/2st08 1200 4t.9 2nd Ouarter Samolins Event t ENEfrAf LAEOBA1OffiES, lNC. . 2393 Satt Creek Highway (8260t) 'PO. Bot 3258 ' Caspet Wy 82602 TollFree88B.235.0515 , 307.235.0515 . Fax 307.234.1639 ' casper@energylab.com,www.energylab.com I I I Cllent: ProJect: Lab lD: Client Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp Znd Ouarter Chloroform c08061320-023 MW.4 Report Date: 07117/08 Collection Date: 06125108 16:08 DateReceived : OEt27 108 Matrlx: Aqueous Analyses Result Units Qualifiers RL MCUQCL i/lethod Analysis Date / By I T I I I I I t T t I t MAJOR IONS Chloride Nilragen. Nitrale+Nitrite a$ N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chlorornethane M€thylene chlorido Su rr: 1,2-DichlorobenzenB-d4 Su(r: Dibromofluoromethane Su rr: p.Bromolluorobenzene Surr: Toluene-d8 42 mglL 6.09 mg/L 1,6 ug/L 2500 ug/L ND UgiL ND ug/L114 o/tREC IOE %REC108 %REC 90.0 %REC I 0.05 1.0 't00 1.0 1.0 8D.'t20 7G130 80-120 80-120 44500-cl B E353.2 SWB26OB sw8260B sw8260B sw&2608 SWBz60B sw8260B SW826OB sw82608 oztotna 16:16 / ljl 07l1AOA 06:03 / eli-b 07/05/08 08:30 / dkh 07/05/08 09:09 / dkh 07/05/08 08:30 / dkh 07/05/0E 08:30 i dkh 07/05/08 08:30 / dkh 07/05/08 08:30 / dkh 07/05/08 08:30 / dkh 07/05/08 08:30 / dkh t t Report RL - Analyte teporting limit. Definitions: eCL - Oual'ty conlrol timi!. D - RL increased due lo sample matrix lnterference. MCL - Maximum contaminant level. ND - Not detected at the reporting hmit T I ENERGY LABORATOEEi litc. , 2393 Sett Creek Highway (82601) ' P.o. qox 3258 , casper wY 8P602 t0ttFree888pJ5.0515,307.235.0515. Fax307.234.1639'casper@energytab.cot?1 'tYilMenergylab.cont I I Client: Project: Lab lD: Client Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) CorP Znd Quarter Chloroform c08061 320-01 I TW4.1 Report Date: 07/17108 Collection Oate: 06/25/08 15:42 DateRecelved: 06/27108 Matrlx: Aqueous I Anslyses Result Unlts Quallflers RL ilcuOCL Method Analysis Date, By mglL mgiL I I I I T I I I I I I I MAJOR ION$ Chloride Nitrogen, Nitrate+Nitrito as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methytene chloride Sur: 1,2-Dichlorobenzen6{4 Surr: Dibromofluoromethane Sun: p-Bromofluorobenzene Surr: Toluene-d8 39 8.68 1 0.05 1.0 t00 1.0 1.0 80-120 7G130 80-120 80-120 A4500-Cl B 07/03108 16:54 / lil E353.2 O7t12108 05:51 / eli-b 1.1 ug/L 1S00 ug/L ND uglL ND uglL 113 %REC l0B o/oREC 107 %REC 90.0 %REC sw82608 sw82608 SW8260B swB260B swB260B sw8260B sw8260B SW82608 07/05/08 02:03 / dkh 07/05/08 82'.42 I dkh 07/05/08 02.03 i dl(h 07/0S08 02:03 / dkh 0710#04 02:03 i dkh 07105/08 02:03 / dkh 07/05108 02:03 / dkh 07105/08 02:03 / dkh I I t Report RL - Analyte reporting liftt. Osflnltlons: eCL - euatity control lamit. D - RL increased due to sample matrix lnterference MCL - Maximum contamlnanl level. ND - Not detocted at the reporting limit I ENEfrGY LABOf,AfOfrES, lNC, . 2393 €att Creek Highway /82601) ' PO" Bax 3258 ' Casper, WY82602 fotl Free888.235.0515 , 307.235.05/5 . Ffl( 30/.234,16i9 ' casper@energylab.com'www.energylab.com I I I Client: Project: Lab lD: Cllent Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp znd Ouafter Chloroform c08061 320-021 TW4.2 Report Date: 07/17/08 Collection Date: o€125i08 12:?5 DatsRoceived: 06/27108 Matrix: Aqueous Analyses Result Unlts Qualifi€rs RL MCL'OCL Method Analysls Date / By mg/L mglL I I I I I I I I T I I T MAJOR IONS Chloride Nllrog€n, Nitrato+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane MBlhylene chlori{re Surr: t .2-Dichlorobenzene{4 Su rr: Dibromofluoromsthane Surr: pBromolluorobenzens Sun: Toluen+d8 46 7.44 2.2 3100 ND ND 116 108 108 90.0 ug/L uglL ug/L uglL %REC %REC %REC %REC 1 0.05 10 r00 1.0 1.0 E0-.120 7&130 E0-1 20 80-120 SW62608 SW826OB sw8260B SWB26OB sw8260B sw8260B SWB260B swB2608 A4500-Cl B 07/07/08 16:06 / l1l E353.2 07t12fr8 06:00 / eli-b 07/05/08 07: l3 / dkh 07/05108 Ol:52 I dkh 07/05/08 07:13 I rlkh 07/05108 07:13 /dkh 07/05/0807:13/dkh 07/05/0807;13rdkh ATl05l08 07:13, dkh 07/05/08 07:13 / dkh I I Report RL - Analyta reporting limit. Definlllons: eCL - euality contfol limit. D - RL increased dus to sample matrix inl€rference. MCL - Maximum contaminant level. ND - Not detected at the reporting limit I I EflEnGY LAEORATOfrIES, lNC. . 2393 Sall Creek Highway (82601) . PO. Eax 3258 ' Caspet WY82602 TollFree888.235.0515 ' 307.?35.0515 ' Fax 307.234.1639 ' casper@energytab,com'www.energylab.com I t I Client: Project: Lab lD: Cllent Sample lD LABORATORY A NALYTICAL REPORT Denison Mines (USAi Corp 2nd Quarter Chloroform c08061320-002 TW4-3 Report Date: 07/17108 Collection Dato: 06/25/08 10:55 DateReceivEd: OEl27 108 Matrlx: Aqueous Analyses R$ult Unlts Quallflers RL MCUqcl Method Analysls Date I By I I I I I T I t T I I t MAJOR IONS Chloride Nitrogen, Nilrate+Nitrits as N VOLATILE ORGANIC COMPOUNDS Carbon letrachloride Chloroform Chloromelhane Methyleno chlorlde Surr:'t,2'Dichlorobenzene-d4 Surr: Dibromof,uoromethane Su rr: p-Brornofluorobenze ne Surr: Toluene-d8 1 0.05 13 mg/L 2.85 mg/L A4500-CI B 07/03/08 15:23 / l1l E353.2 QTll2lO8O5:27 I eh-b SW8260B 07l02rc4 t4:08 / dkh SW8260B 07n2t0814:08 r dkh SWE260B a7fi2t08 14:08 I dkh sw8260B 07/02108 14'08 l dkh SW8260B 07fi2n814:08 / dkh SW8260B 07102108 14:08 / dkh sw8260B 07n2to8 14.08 / dkh SW82608 o7t02l08la:08 / dkh NO NO NO ND 109 99.0 108 93.0 ugiL uSlL ug/L ug/L %REC o/oREC %REC %REC 1.0 1.0 1.0 1.0 80-120 70-1 30 00-t 20 80-120 Rsport RL - Analyte teporting limit Definitlons: eCL - euatity control limit. MCL - Maximum conlarninant level. ND - Not detected at the reporting llmilI T I I EItIEEGY LAEORATOfrIES, lNC. . 2393 Satt Creek Hrghway {s260t) , PO. Box 3158 . Caspe| Wy 82602 Tolt Free 888.235.0515 , 307.235.0i15 . Fax 307.234. 1639 . casper@energylab.com . wwwenergylab.com I I I Client: ProJoct: Lab lD: Client Sample lD LABORATORY ANALYTICA L REPORT Denison Mines (USA) Corp 2nd Quarter Chloroform c08061320-020 TW4-4 Report Date: 07117/08 Collection Date: 0685/08 15:35 DateReceived : AGl27 t08 Matrix: Aqueous Result Unltg Qualifiers RL MCU OCL Method Analysis Daie, By I I I I I I I I T I T I MAJOR IONS Chloride Nilrogen, Nilrat€+Nitrito es N VOI-ATILE ORGANIC COMPOUNDS Carbon tetrachlordo Chloraform Chloromethans Methylone chloride Surr: I .2-Dichlorobenzene-d4 Sun: Dibromofluoromethano Sun: p-Bromofl uorobonzene Sur: ToluenedS I 0.05 42 mg/L 10.8 mg/L 44500-Cl B E353.2 SWE26OB SW82608 sw8260B swB260B sw8260B sw82608 sw8260B SW8260B 07/07i08 16:0'l I ljl 07/12/08 05:59 / eli-b 07/05/08 05:55 / dkh 07/05/08 06:34 / dkh 07/05/08 05 55 / dkh 07/05108 05:55 / dkh 07/05/08 05:5s i dkh 07/05108 05:55 / dkh 07/05/08 05:55 i dkh 07/05/08 05:55 / dkh 't.5 2500 ND ND 114 r10 108 91,0 ug/L ug/L ug/L ug/L %REC %REC %REC %REC 10 100 1.0 1.0 80-120 70.1 30 80-,20 80-120 I r I Raport RL -Analyto teporting lirnit. Dofini[ons: ocl - ouality control limit. D - RL increased due to sample matrlx lnterference. MCL - Maximum contaminant level. ND - Not detected at the reporting timit. I ENEEGY LAaOBATORIES, lilC . 2393 Salt Creek Hiqhway {82601) ' P0. Box 3258 ' Caspet, WY 82602 TotlFree888.235.0515 ,307.205.0515. Fax307.234.1639, casper@energylab.com.wwwenetgylab.cont I t I Cllent: Project: Lab lD: Client Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Quarter Chloroform c08061 320-012 TW4.5 Report Date: 07i 17108 collectlon Dato: 06/25/08 10:M DateReceived: 06127fi8 Matrlx: Aqueous Analyseg Result Unit6 Oualifiers RL MCUQCL Mothod AnalyEis Oato I By mg/L mg/L I I I I I I I I I I I I MAJOR IONS Chloride Nitrogen, Nitrate+Nikito as N VOLATILE ORGANIC COMPOUNDS Carbon letrachloride Chlorofonn Chloromethane Mehylene chlorida Sun: 1,2-Dichlorobenzene44 Surr. Dibromofluoromethane Surr: p.Bromof, uorobenzene Surr: Toluene{8 37 8,70 ND 9.3 ND ND 110 103 108 9i.0 uglL ug/L ug/L ug/L %REC %REC %REC %REC 1 0.05 1.0 1.0 1.0 1.0 80-1 20 70-1 30 s0-1 20 80-1 20 SW826OB sw8260B SW826OB sw8260B sw6260B SW826OB sw8260B SW826OB A4500-Cl B 07103/08 16.27 t t1t E353.2 07/12/08 05:45 / eli-b 07,04/08 17:39 / dkh 07104/08 't7:39 I dkh 07/04/08 17:39 / dkh OTIoE,|OA 17:39 / dkh 07104/08 17:39 / dkh 07/0{/08 17:39 / dkh 0?l0/,lOA 17:39 / dkh 07/04/08 17:39 / dkh T t Roport RL - Analyte reporting linlit. Definitions: eCL - euat6y control limit. MCL - Maximum conlaminant level. ND - Not detected at lhe repodlng llmil I I ENE4AT LAAOfrATOfrtES, tNC. . 2393 Sat Creek Highway (8260t) ' PO. Box 3258 ', Caspet; WY 82602 iott Free888.235.0515 . 307.235.0515 . Fax 307.234.1639 ' caspor@energylab.mm'www'energylab-com I I I Client: Project: Lab lD: Client Sample ID LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Quarter Chloroform c080a1320-01 3 TW4-6 Report Date: Colloction Date: DateRecelved: Matrix: 07t17tog 06/25/08 15:25 o6t27$8 Aqueous Result units Quallflers RL MCL/QCL Method Analysis Date / ByAnalyses I I I I I I t T I I t t MA,IOR IONS Ghloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon totrachloride Chloroform chlorom€thane Methylene chloride Sun:'1,z-Dichlorobenlene44 Sun: Dibromofluoromethan€ Surr: p-Bromofluorobenzene Surr: Toluene.d8 35 mg/L 0.S0 mgIL 1 0.05 1.0 1.O 1.0 1.0 80-120 7(F130 8S.120 8fi.120 A4s00-ct B 8353.2 sw82608 sw8260B sw82608 SWB2608 sw8260B sw8260B sw8260B sw8260B 07/03/08 16:33 / ljl oTll2to$ 05:38 / eli-b 07/04/08 18:18 / dkh 07t04108 l8:18 / dkh 07/M/08 18:18 / dkh 07i0{/08 l8:18 i dkh 07/04/08 18:18/dkh 07/04i08 18:18 / dkh 07/04/08 1B:18 / dkh 07/04/08 18:18/dkh ND 24 ND ND 't13 r08 t14 91.0 ugiL ug/L ug/L ug/L %REC %REC OAREC %REC I t I Report RL - Analyte ,eporting lirnit Dof,nitlons: OCL - Ouality control li;nit. MCL. Maxirnum contamlnant level. ND - Not detected at the repo(ing limit ENERQY LAgOfrATOfrtES, tNC. - 239i Sall Creek Htghway (8260t) ' P.O. Box 3?58 ' Casper, WY 82602 totl Frea888.235.0515 , J07.?35.05t5 " fax 307.234.1639 ' casper@energylab.com'wrwenergylab.com Client: Project: Lab lDr Cllent Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Quarter Chloroform c08061320-019 TW4.7 Report Date: 07/17/08 Collection Date: 0625/08 15:51 DateReceivedz ffi127108 Matrix: Aqueous Analyses Result Unlts Ouallllers RL MCUQCL Method Analysis Date, By MAJOR IONS Chloride Nikogen, Nilrate+Nitrite as N VOLATILE ORGAHIC COMPOUNDS Carbon tetrachlorida Chloroform Chloromethane Methylene chloride Surr: 1.z-DichlorobenzsnE-d4 Surn Oibromofluoromethane Surn p-BromofluorobenEene Surr: Toluene-d8 43 4.80 1 0.0s 1.0 100 1.0 1,0 80-1 20 70-1 30 80-l 20 80.120 .ng/L mg/L A4500-Cl B 07/07100 15:57 / l1l E353.2 07t12108 05:58 / elt-b 1,3 ug/L 1 800 ug/L ND udl ND uS/L 114 o/6REC 107 %REC 108 o/6REC s1,0 %REC SW82608 sw8260B SW826OB sw8260B sw8260B sw8260B sw8260B SWO260B 07/05/08 03:20 / dkh 07/05/08 04:00 / dkh 07/05i08 03:20 I dkh 07/05/08 03:20 I dkh 07/05108 03:20 / dkh 07/05108 03:20 / dkh 07/05/08 03:20 I dkh 07/05108 03:20 / dkh R€port RL - Analyto reporting limit. Deflnltlons: eCL - euality aontrot limit D - RL incrBased due to samplo matrix inlerference MCL - Maximum contaminant level. ND . Not delected at the reporting limit I ENEPGY LABORATORIES, lNC. ' 2393 Sat Creek llighway (8260t) ' P.O. Box 3258 ' Caspq WY 82602 To$ Fre€888,235.0515 , 307.235.0515 ' Fax 307.?34,/639 ' caspet@eneryylab.com'wtw,energylab.com I t Client: Project: Lab lD: Client $ample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd 0uarter Chloroform c080ts1320-005 TW4-8 Report Date: 07/17108 Collection Date: 06P5/08 16:20 DateReceived: 0627/08 Matrlx: Aqueous I Analytes Result Unlts Quallflors RL i'lCUOCL Method Analysis Date / By 45 mg/L ND mg/L I I I I I I I I I I T I MAJOR IONS Chloricle Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon letrachlorido Chloroform Chloromethane Mathylene chlotftle Surr: 1,2-Oichlorobenzene-d4 Surr: Dibromofluotomethane Surn p.Bromoffuorobenzsn€ Surr: Toiuene-d8 I 0.05 t.0 1.0 1.0 1.0 8G120 70-1 30 80-'t 20 8U120 sw8260B SW826OB sw8260B SW826OB SW826OB sw8260B SW626OB SW8260B A4500-Cl B 07/03/08 15:4I / ljl E353.2 07112t08 05:30 / eli-b ND ug/L ND ug/L ND ug/L NO ugiL 111 %REC 108 o/6REC 112 %REC 91.0 %REC 07/0U08 t3:32 / dkh 07/03/08 13:32 / dkh 07/0Y08 13:32 I dkh 07/03/08 l3:32 / dkh 07/0s/08 13:32 / dkh 07/0U08 13:32 I dkh 07/0V08 13:32 / dkh 07/03i/08 13:32 I dkh t I I Report Deflnltlons: RL - Analge reporting llrnlt. QCL - Qu€liry corhol lirnit. MCL . Maximum contarninant level. No - Not detoctod at tho reporting limit I ENEnOf LAEOfrATORIES, lNC. ' 2393 Salt Oeek HUhway (8P60t) ' P.O. 9ox 3258 ' Caspe4, WY 82602 Toll Free 88e.fi5.0515 ' 307 #5.0515 ' Fax 307.234,1639 , casper@energylab,com'wwvaenergylab.com T t Client: Pmject: Lab lD: Client Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp Znd Quarter Chloroform c08061320-008 TW4.9 Report Date: 07/17/08 collection Dete: 06125/08 10:45 DateReceived : OBf27 IOB Matrix: Aqueous T Analysss R€sult Untts Oualiliers RL MCUQCL Method Analysls Date / By mg/L mg/L I I I t T t I t I t I I MAJOR IONS Chloride Nitrogen, NitratB+Nihite as N VOLATILE ORGAHIC COMPOUNDS Carbon tetrachloride Chloroform Chlorom€ihane Melhylene chloride Surr: 1,2-Dichlorobenzened4 Su rr: p-Bromofluorobenzane Sun: ToluonqdB 35 2.30 I 005 't.0 10 1.0 1-0 8tr120 7G130 80-120 80-120 sw8260B swB260B SW8260B sw6260B sw8260B sw8260B SWB260B sw82608 44500-Cl B 07/0U08 15:51 / ljl E353.2 07112t08 05:34 / eli-b ND ug/L 1.0 ug/L ND ug/L ND ug/L 111 %REC1O4 o/oREC 115 %REC 90,0 %REC 07/04/08 15:04 / dkh 07104108 15:O4 / dkh 07/04i08 15:04 , dkh 07/04i08 15:04 t dkh 07104108 15:04 / dkh 07/04/08 15:04 / dkh 07/04i08 15:04 / dkh 07/04/08 15:04 / dkh Report RL. Analfle reportlng limil. Oeflnltlons: eCL - Ouallty control limit. MCL - Maximum conteminant level ND - Not detected at the reporiing lirnit.I T I I ENEaOY LABORATOfrES, lNC, - 2393 Salt Creeh Highway (826Ail . PO. aox 3258 ' Casper WY82602 TotlFreeBB8.235.05l5 . 307.235.0515 , Fax 307.234.1639 , casper@energylab.com'www.energylab.com I t I Client: Project: Lab lD: Cllent Sarnple lD LABORATORY ANALYTICAL REP O RT Denison Mines (USA) Corp 2nd Ouader Chloroform c08061 320.016 TW4-10 Report Date: 07l17lOB Collection Date: 06t125/08 10:22 OateR€ceived z Ots127 108 Matrix: Aqueous Analyses Result Units Qualiflers EL MCL/OCL Method AnalFiB Date I By ND 720 ND ND 113 104 107 91.0 I I I I I T I I I I T I MAJOR IONS Chloride Nrlrogen, Nitrete+Nitrito as N VOLATILE ORGAI'IlC COMPOUNDS Carbon tetrachlorido Chloroform Chloromethane Methyleno ehloride Surr: 1,2-Dichlorobenzened4 Surr. Dibromofluoromathane Surr: p.Bromofluorobonzene Surr: Toluene{8 58 mg/L9.91 ms/L ug/L ugi,L ug/L ug/L %REC %REC %REC %REC t o.o5 1,o 10 1.0 1.0 80-l 20 70.1 30 80-120 80-120 A4500.C1 B E353.2 sw8260B sw8260B sw82608 SW8260B SW826OB sw8260B SW82608 SW826OB 07/03/08 16:45 / ljl OTtlA0A 05:48 / elr-b 07fi4l}A 23:28 / dkh 07/05108 00:07 / dkh 07/04/08 23:28 / dkh 07/04/08 23.28 / dkh 07/04/08 23:28 / dkh 07/04i08 23:28 / dkh 07/04i08 23:28 / dkh 07/0#04 23:28 / dkh I I T Report RL - Analyle reporting limit Deflnltlonst eCL . euality control limit. D - RL increased due to sampl€ malrix interferenco. MCL - Marimum contaminant level. ND - Not dotected at the reporting lrmit. I ENEne y LABOfrATOfrtES, tNC. , 2393 Salt Creek Highway {82601) . Po. Box 3258 , Caspet WY 82602 T0t1fiee888.235.05t5 ,307.235.05,5 . Fax 307?34.1639 'caspen@energylab.com'www.energylab.cott t I Clientr Prolect: Lab lD: Client Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Quarter Chloroform c08061320-014 TW4-11 Report Date: 07117/08 Collsctlon Date: 06125/08 12:14 DateReceived: 06P7/08 Matrix: Aqueous I Analysss Result Units Oualifiers RL MCUQCL Method Anslysl8 Date / By mg/L mE/L I I I t I I I I T I I t MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon letrachloride Chloroforfil Chlorom€thane Methylene chloride Sun: 1,2-Dichlorobenzene-d4 Sun: Dibromofluoromethane Su rr: p-Bromofluorobenzene Sun: Tolueno-d8 46 7.28 1 0.05 1.0 100 1.0 1.0 80-1 20 70-130 80-120 80-1 20 SWB2608 SW82608 SW82608 sw82608 sw82608 SW82608 SW82608 SW82608 A4500-Cl B 07/03108 16:36 / lil E353.2 0711A08 05:46 / eli-b NO ugll 640 ugll ND ug/L ND ug/L 111 %REC 96.0 %REc 109 %REC 90.0 %REC 07104/0E 20:52 / dkh 07104108 21:31 / dkh 07/04/08 20:52 / dkh 07/04/08 20:52 / dkh 07/04/0S 2O:52 t dkh 07i04,tr8 2A:52 t dkh 07104/08 20:52 / dkh 07i04108 20:52 / dkh I T T Report RL - Anelyte reporting limit. Deflnltlons: eCL - euality controt timit. D . RL increased due lo sample malrix interlerence. MCL - Maximum contaminant level. No - Not dotecled at the reporting limit. I ENEfrCy LAFORATOEIES, lNC. . ?393 Salr Creek Highway (8260t) , PO. Box 3258 ' Caspet WY 82602 Toll Free888.235.0515 , 307.235.05t5 . Fax 307.234.1639 ' casper@energylab.com'wwu.energylab.com T T I Client: Prolect: Lab lD: Client $ample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Quarter Chloroform c08061320-003 'rw4-12 Report Date: 07117108 Collection DatE: 06/25i08 14:48 DateReceived z AGl27 108 Matrir: Aqueous Analyses Result Unlts Quatiflers RL MCUOCL Method Analysls Date I By mg/L mg/L T t I I I I t T T t I I MAJOR IONS Chloride Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUNOS Carbon letrachloride Chloroform Chloromethane Methylene chloridE Sun: 1,2-Dichlorobenzened4 Surr: Oibromofluoromethane Surr: p-Bromofl uolobenzene Sur: Toluene-dB 19 269 1 0.05 1.0 1.0 1.0 1.0 80-1 20 70-130 80-1 20 80-1 20 44500-Cl B 07J03i08 15:30 / ljl E353.2 07112/08 05:28 i eli-b ND uglL ND udL ND udL ND ug/L 111 %REC97.0 o/oREC 110 %REC 93.0 o/oREC SWEz608 SW8260B sw82608 sw82a0B sw8260B sw8260B sw8260B SWE2EOB 07t02t08 14.46 / dkh 07|OA0B 14:46 / dkh 07/02/08 14:46 / dkh 07102/08 l4:4S / dkh OT|iU$B 14:46 / dkh Olto2t0B14:46 / dkh 07102/08 14:46 / dkh 07102/08 14.46 / dkh Report RL - Analyte reporting lirlrlt. Delinitions: eCL - euatiry congol llmit. MCL - Maxlmum contarninant level. ND - Not detected at the reporting limitI I I I ENEFGY tnBofrAfofiEg, lNC. ' ?393 Satt Creek Highway (82601) . P.O. 1ox 3258 ' Casper: WY 82602 Tolt Free 888.?05.0515 ' 307.235.0515 ' Fax 307.234,1639 ' casper@energylab.com ' www.energylab.con I I Glient: Project: Lab lD: Cllent $ample lO LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Ouarter Chloroform c08061320-004 TW4-13 Report Date: 07/17/08 Collection Date: 06125/08 14:56 DateReceived: 06/27108 Matrix: Aqueous I Result Units Qualifiers RL MCL'QCL Method Analysis Date, By I I I t I I I I T I I I MAJOR IONS Chloride Nitrogen, Nitrate+Nilrito as N VOLATILE ORGAHIC COMPOUNDS Caabon tetrachlorrd6 Chloroform Chloromothane Mefiytene chloride Surr: 1,2-DiehlorobenzenE-d4 Su rr: Dibromoftuoromethane Surr: p-Bromofluorobenzene Sun: Toluene-d8 1 0.05 58 mg/L 4.24 mg/L A4500-cl B 835s.2 SW826OB SW8260B SW826OB $w82608 SWB26OB SW826OB sw8260B sw82608 07/03/08 15:35 I ljl 07t1A0A 05:29 / eli-b 0710A0815;25 / dkh 0710A0815:25 / dkh 07102t08 15:25 / dkh 07 t02to8 r 5'25 / dkh 07/02108 t5:25 / dkh 0710?108 15:25 / dkh 07/02/0E 15:25/dkh oTlOZlOB 15:25 / okh ND ND ND ND 112 108 111 92,0 ugIL ugrL ug/L ug/L %REC %REC %REC %REC 1.0 1.0 1.0 1.0 80-120 7&130 8G.120 80-120 Reporl RL - Analyte reporting limit. Definlilons: eCL - Ouality conlrot timit. MCL - Maximum contaminant level. ND - Not detected at ths reporting limitt T t I ENEfrGy LAFORATOfr$ES, lNC. . 2393 Saft Creek Hrghway 182601) , PO Eox 3258 ' Caspu WY 82602 Tot| ftee888.235.0515 , 307235.0515 . Fax 307.fi4.r&?9 'casper@energyleb.com'www.enorgylab.com T T I Client: Project: Lab lD: Cllent Sample lD LABORATORY ANALYTICAL RE PORT Denison Mines (USA) Corp 2nd Ouarter Chloroform c08061320-007 TW4-14 Report oate: 07/17/08 Collection Date: 06125/08 15:07 DateReceived: 06/27108 Matflx: Aqueous Analy8eB RoEult Unlts Qualifiers RL MCUOCL Method Analysis Dato , By mg/L mg/L I I I I I I I I I t I t I I I MAJOR IONS Chloride Nitrogen, Nitrale+Nitrite as N VOLATILE ORGANIC COMPOUHDS Carbon tetrachloride Chlorofolm Chloromethane MEthylsne chlorrde Surr: 1, 2-Dichlolobenzene.d4 Surr: Dibrornofluorom€thane SuIr: p-Bromof luorobenzene Surr: Tolu6ne-d8 NE 1,56 1 0.05 1.0 1.0 t.o 1.0 80-120 70-130 E0-120 80.1 20 sw82608 SW82608 SW82608 SWB26OB sw82608 sw8260B SW826OB sw8260B A4500-Cl B 07/03/08 15:4S / lil E353.2 07112108 05:33 I eli-b ND ug/L ND ug/L ND ug/L ND ug/L 109 %REC 101 %REC 113 o/qREC 92.0 o/oREC 07/04108 14:25 t dkh 07/04/08 14:25, dkh 07/04/08 14'25Idkh 07 t04to8 1 4'25 / dkh 07i04/08 14:?5 / dkh 07/04i08 14:25 / dkh 07104/08 14:25 / dkh 07104/08 14:25 / dkh Roport RL - Analyle reporting limit, Doflnltlons: OCL - Qualiry control lirnit. MCL - Maximum contaminant lev€|. ND - Not detected at tho reporting limil I ENERGY LAEOfrATORIE9, lNC. '2393 Salt Creek Hghway (5260t) 'P.O. Bo,r 3258 ' CasPet W82602 Totl Free 8t18.235.0515 . 307.235.0515 ' Fax 307.234.1639 , 'casper@energylab.com ' www.energylah.com I I t Cllent: Project: Lab lD: Client Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Quarter Chloroform c08061320-024 TW4-15 Report Dete: 07/17/08 Collsction Date: 06/25/08 16:50 DateReceived: 06/27108 Matrlx: Aqueous Analyses Result Units Oualifiers RL MCL/QCL Method Analysls Date / By mg/L mg/L t I I I I I T I I I T I MAJOR IONS Chloride Nitrogen, Nilrate+Nitrite 8s N VOLATILE ORGANIC COMPOUN DS Carton tetrachlorrde ChloroIorm ChloromBthan€ Methylene chloride Surr: 1,2-Dichlorobenzeno-d4 Surr: Dibromofl uoromethane Su rr: p.Bromofluorobenzene Sur: Toluens,d8 57 0.56 1 0.o5 1.0 100 1.0 1.0 80-r20 70-t 30 80-t 20 80-t 20 sw8260a sw8260B SW826OB SW82608 sw82608 sw8260B sw8260B sw8260B A4500-Cl B 07/07/08 16:22 / l1l E353.2 07t12l08 06:04 / ell-b ND ug/L t300 ug/L ND uglL 53 ug/L 'r 16 %REC 113 o/oREC 110 o/oREC 91 .0 %REG 07/05108 09:48 / dkh 07/05/08 10.26 / dkh 07/05/08 09:48 / dkh 07105/08 09:48 / dkh 07105/08 09:48 / dkh 07105/08 09:48 / dkh 07/05i08 09:48 i dkh 07/05'/08 09:481 dkh I I R€port Deflnitlons: RL - Analyte reporting timit. QCL ' Quality control lirnit. D - RL lncteaeed dua to sampte mattlx interferenco. MCL - Maximum contaminant level. ND - Not dotected 6t the roporting limit. t I ENEBGY LABORATORIES, tNC. . 2393 Salr Creek Highway (5260t) ' P.O. Box 3258 ' Casper, WY 8?602 TlilFree888.235.0515 ,307.235.0515 . Fax 307,2A.t6i9 , casper@eneryytab.cofi'www.energylab.com I I I Gllent: ProJectr Lab lD: Client Sample lD LABOMTORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Quafier Chloroform c08061320-01 1 TW4-16 Raport Date: 07/17/08 collscuon Dat6: 06/25108 08:34 DateReceived: 06/27/08 Matrix: Aqueous Analys6s Result Unitg Quallfiers RL MCUQCL Method Analysie Date, By mE/L mg/L I I I I I t I t I I I I MAJOR IONS Chloride Nitrogen, Nitrate+Nitrlte as N VOLATILE ORGAN]C COMPOUNDS Carbon tehachloride Chloroform Chloromethane MethylenB chlorido Su n: 1 .2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: p-Bromofluorobenzene Surr: Toluens.dB 58 1.46 1 0.05 1.0 1.0 1.0 1.0 80-120 70-1 30 80-1 20 80- 1 20 sw8260B sw82608 sw8260B SW826OB sw6260B sw8260B SW8260B sw8260B 44500-Cl B 07/03108 16:24 / ljl E353,2 07/I2100 05'44 / eli-b ND ug/L ND ugtr ND ug/L ND ug,L 114 %REC108 q/6REC I l5 o/6REC s0.0 %REc 07/01108 17:00 / dkh 07/04108 17:00 / dkh 07/04108 17:00 i dkh 07/04108 17:00 / dkh 01104t0817:00 / dkh 07/04/08 17:00 / dkh 07/04/08 '17:00 / dkh 07/04/08 '17:00 i dkh I t t Repoft RL - Analyto repo.ting limil. Doflnltloni: OCL - euality control hmit. MCL - Maximum contamlnant level. ND - Not detected at tha reporting limit. t ENEBOY LAROfrA|OHE& lNC. . 2393 Satt Creek Highway (82601) ' PO. Box 3258 , Caspet WY 02602 Totl Free 888.235,0515 . 307.235.0515 . Fax 307.234.1639 . casper@energylab.con . wvwleneryylab.con I I I Client: Prolect: Lab lD: Client Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Quarter Chloroform c08061 320-022 TW4-17 Report Date: 07/17/08 Gollection Dat€: 06/25/08 09:30 DateReceived: 06/27108 Matrir: Aqueous Analy9ss Result Unlts Quallliers RL MCUQCL Msthod Analysir Date I By 29 mg/L ND mg/L T I I T I I I I I t I T MAJOR IONS Chlorido Nitrogen, Nikate+Nikite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylene chlodde Surr: 1,2-Dichlolobenzened4 Surr: Dibromofluoromothane Surr: p-Bromofluorobenzene Surr: ToluenedB I 0.05 1.0 1.0 1.0 1.0 8G120 7G130 80.120 80-'t20 SW8260B sw8260B sw6260B sw8260B SW&2608 sw8260B sw8260B sw8260B A4500-Cl B 07/07/08 16:11 / ljl E353.2 07/12/08 06:01 / eli-b ND ug/L ND ugil ND ugll ND ug/L 116 o/6REC 116 o/oREC I13 %REC 89.0 o/oREC 07/04/08 18:56 / dkh All14l08 18:56 / dkh 07/04/08 18:56/dkh 0710U0818:56 / dkh 07/04/08 18:56/dkh 07/04/08 18:56/dkh 07/04/08 18:56 / dkh 07/M/08 18:56 / dkh T I I RL - Analyh reporting limit. OCL - Ouality control limit. MCL - Maximum conlaminanl lgvel. ND - Not detected at the reporting limit I ENEfiGY LAEOnA|OfllFS, lltlC. , 2393 Salt Creek Hrghway (8260U 'P.O gox 3258 . Caspil Wy82602 Toll Free 888.235,0515 ' 307.?35.0515 ' Far' 307.234. 1639 ' casper@energylab.com , wwwehergylab.com I I I Client: Project; Lab lD: Client Samplo lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Quarter Chloroform c08061320-010 TW4,18 Report Date: 07/17/08 Collection Date: 06125/08 08:17 DateRecelved: 0627/08 Matrir: Aqueous Aflalysss Rssult Unlts Ouallflera RL MCL/QCL MBthod Analy$l$ Date / By I 0.05 I I T I I I I I I I I I MAJOR IONS Chlorido Nitrogen, Nitrata+Nitrite as N VOLATILE ORGAN]C COMPOUN DS Carbon tetrachlorido Chlorolorm Chloromethane Methylen6 chloride Surr: I .2-Dichtorobonz6n6-d4 Sun: Dibromofluoromethane Surr: pBromofl uorobenzene Sur: Toluene.dE 23 mE/L 4.55 mg/L ND ug/L 5.7 ug/L ND ug/L ND ug/L t 08 o/oREC 98.0 04REC l0g o/oREC 93 0 %REC 1.0 1.0 1.0 1.0 80.120 70-1 30 80-1 20 80-1 20 44500-Cl B E353.2 sw8260B sw8260B sw8260B SW8260B sw8260B SW6260B sw8260B SW8260B 07/03108 16;21 I ljl 07112108 05:42 / eli-b 07/04/08 l6:21 / dkh 07/04/08 '16:21 / dkh 07/04/08 16:21 / dkh 07104108 16:21 i dkh 07/04108 16:21 i dkh 07/04/UB 16:21 / dkh 07/04/08 16:21 / dkh 07/04/08 16:21 / dkh I I Report RL - Analyt€ reporting limit- O€flnltions: eCL - euality control limit. MCL - Maximum contaminant level. ND - Not detected at lho reporting limit T I ENERGY LABORATOfrES, lNC. ' 2393 Salt Creek HEhway (8260t) ' PO. aox 3258 ' Casper; WY8260e TottFree888.235.0515 . 307.235.0515 . Fax 307.234.1639 ' caspert@energylab.com'www.energytab.com I I I Client: ProJect: Lab lD: CllentSample lD LABORATORY ANALYTICAL REPORT Donison Mines (USA) Corp 2nd Quarter Chloroform c08061 320-026 TW4-lS Report Date: 07/17108 Gollection Date: 06/25108 17:?2 DateRecelved: 06/27108 Matrlxl Aqueous Arnlyses Result unlts Oualiflerc RL MCL' OCL Method Analysis Date, By mg/L mgIL I I I I T I I I I t I t MAJOR IONS Chloride Nitrogen, Nitrate+Nilrits ae N VOLATILE ORGAN]C COMPOUNDS Carton tetrachtoridE Chloroform Chloromethane Methylene chloride Surr: l,2.Dichlorobenzene-d4 Surr: Oibromof luoromethsne Surr: p-Bromofluorobenzene Sun: Toluene-d8 128 2.81 ND I 000 ND ND 116 112 108 90.0 udL ug/L ug/L ug/L %REC %REC %REC %REC 1 0.05 1.0 100 1.0 1.0 80-120 70-1 30 80-r20 80-120 A4500-Cl B 07107/08 16:a7 I l1l E3s3.2 OTnZnB 05:06 / eli-b sw6260B sw8260B sw8260B sw8260B sw82608 SW82608 sw8260B sw8260B 07105/OB 12:23/dkh OTlOTfiA 15:36 / dkh 07/05/08 12:23 I dkh 07/05,08 12:23 I dkh 07/05/08 l2:23 / dkh 07/05/08 12'23 / dkh 07/05t08 12:23 / dkh 07/05/08 12'23 I dkh I T I Report RL - Analyte reporting limit. Definltlons: eCL - eualily con6ol limit. D - RL lncreaged due to sample matrix inlerference. MCL - Maxirrum cgnlamlnant level. ND - Not delected al. ttre reporting limil. t ENEfrGY LABOEA|ORES, lNC. . 2393 Satt Creek Highway {s2601) . P.O. Box 3258 . Casp* WY 82601 Toll Free 888.235.0515 . 3a2fi5.0515 ' Fax 307.$4. 1639 . casper@eneryylab.con 'www.efiergylab.con I I Client: Project: Lab lD: Cll6nt Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Quarter Chloroform c08061 320-025 TW4-20 Roport Date: 07117108 Collection Date: 06/25/08 17:10 DateReceived: 06/27108 Matrix: Aqueous t Analyses Result Unlts Quallfiers RL MCL/QCL Method AnalyBls Date / By 1Sl mg/L 7.S6 mg/L I T I I I I I t I t I I MAJOR IONS Chloride Nilrogen, Nitrate+Nilrite as N VOLATILE ORGANIC COMPOUNDS Carbon telrachlorde Ghloroform Chloromelhano Methyleno chlorids Sun: 1,2-Dichlorobenzene-d4 Surr: Dibromofluoromethane Surr: FBromofl uorobenzeng Sun; Toluene-dB 13 ug/L 30000 ug/L ND ug/L 1.2 uyl 116 %REC 98.0 %REC 1 l0 YoREC 92.0 %REC '| 0.05 1.0 1000 1.0 1.0 80-120 70,1 30 80.120 80-120 44500"Ct B E353.2 sw8260B sw82608 sw8260B sw8260B SWS26OB sw8260B sw82608 sw8260B A7tAlli| 16:44 i ljl 07l12lOS 06:05 I eli'b 07/05i08 1l:05ldkh 07/05/08 11:44/dkh 07/05108 11.05i dkh 07/05/08 1l:05ldkh 07/05/08 1t;05 / dkh 07/05/08 1l:05/dkh 07/05i08 11:05/dkh 07/05i08 1't 05 i dkh t I I Roport RL - Analyte reportinq limit. Dofinitionsl eCL - euality cpnkot limit. O - RL increased due t0 semple matrix interference MCL - Me).imum contaminant level. ND - Not detected at lhe reporting limit. I ENEBGY LABORA1OfrES, lNC. , 239i Sail Creek Highway (8260t) . P.O. Box 3258 ' Caspet WY 8260? To$ Free 888.255,05t5 , 307235,05t5 . Fax 307.234.1639 . casper@energylab.com ' ww+,energylab,com t I Client: Project: Lab ]D: Client Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp znd Ouarter Chloroform c08061320-01 s TW4-21 Rgport Date: 07/17108 Collection Date: 06/25/08 08:05 DateReceived; 06/27108 Matrix: Aqueous I Analyses Result Units Oualifiers RL MCU QCL Method Analysis Dato I By I t t T t I I I I T I T t I MAJOR IONS Chlonde Nitrogen, Nitrats+Nitrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromothane Melhylene chloride Sun: t,2-Dlchlorobenzene.d4 Sun: Dibromofluoromethano Sun: p-Bromofluorobenzene Sun: Toluene-d8 1 0.05 271 mgiL 8.81 mdl A4500-ct B E353.2 sw8260B sw82608 sw8260B sw8260B sw82608 sw82608 sw82608 sw8260B 07i03r00 r6.41 , lir O7l12lOB 05 47 / eli-b 07/04/08 22i10 / dkh 07/04/08 22:49 / dkh 07/04/08 22:10 / dkh 07/04/08 22:10 / dkh 07/04/08 22:10 / dkh 07/04t08 22:10 / dkh 07/04108 22:10 i dkh ollo4t08 22 10 i dl(h 1.7 160 ND ND 't 11 102 107 s0.0 ug/L ug/L ug/L ug/L o/oREC %REC %REC %REC 1.0 10 1.0 1.0 E0-120 70-130 80-r 20 80-120 Report RL - Analyto roporting lirllit, Dellnitlons: eCL - Ouality control limit. D. RL increased due to sampl€ matrix interforence. MCL - Maximum contaminant level. ND - Not detected al the reportlng llmit. I I ENEROY LABORATORTES, tNC. .2393 Satt creek Highway (5260t) , Po. Bil( 3258 . Caspet; WY 82602 Tolt Free 888.235.0515 ' 307.235 6575 ' Fax 307.231.16i39 '-casPer@eneryylab.cutt 'www.energylab.con I I Cllent: Project: Lsb lD: Cllent Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Quarter Chloroform c08061320-017 TW4-22 Report Date: 07/17108 Collectlon Date: 06/25/08 08:56 DateReceived: 06/27108 Matrlx: Aqueous I Rasult Units Oualifrers RL MCLIQCL Method AnElysls Dato / ByAnalyses sw8260B SW826OB sw8260B sw8260B swg260B sw8260B SWE260B sw82508 T I I T I I t I I t T I MAJOR IOHS Chlonds Nitrogen, Nitrate+Nitrite as N VOLATILE ORGANIG COMPOUNDS Carbon tetrachloride Chloroform Chloromethano Methylene chloride Surr. 1,2-Dichlorobenzened4 S urr: Dibromofluoromethane Sur: p.Bromofluorobenzene Sun: Toluene-d8 271 mE/L 41.9 mg/L ND ugil '1200 ug/L ND ug/L ND ug/L 113 %REC 103 %REC108 %REC 90.0 o/oREC 1 0.05 1.0 50 1.0 1.0 8&,120 70-t 30 80-l 20 80-1 ?0 A4500-Cl B 07/03/08 16:51 J lil E353 2 07l12lOB 05:49 / eli-b 07/05/00 00:4s / dkh 07i07/08 14:58/dkh 07/05/08 00:45 / dkh 07/0s108 00:45 / dkh 07/05/08 00:45 / dkh 07/05/08 00:45 / dkh 07/05/08 00:45 / dkh 07/05/08 00:45 / dkh I I I R€port RL - Analyte reporting lrmil. Definitlons: eCL - eual1y control limit. D - RL increased due lo sample matrix lnterfer€nce. MCL - Marimum contaminant level. ND - No( detected at the reporting limit. I ENEBGY LAEORA1ORES, lNC. . 2393 Salt Creek Highway (g?00U ' P.O. Eox 3258 ' Caspet WY 82ffiP Totl Free 888.235.0515 . 307.235.0515 . Fax 307.234.1639 ' casper@energylab.com ' www.energylab.€ofi T t Client: ProJect: L:b ID: Client Sampls lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp Znd Quailer Chloroform c08061320-006 TW4-23 Report Date: 07117/08 Cslleetlon Date: 06125/08 14:36 DateRecelved: 06/27108 Matrix: Aqueous t Analyses Result Unlts Ouallfiers RL MCUqeL Method Analysla Date I By mg/L mgiL I I I I I I I I t I I I MA.JOR IONS Chlorids Nikogen, Nitrate+Nitrile as N VOLATTLE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromethane Methylone chlarlde $u n: 1,2-Dlchlorobenzene-d4 Sun: Dibromofluoromethane Surr: p-Bromafluorobanzene SUrr: Toluene-da 41 ND 1 0.05 1.0 1.0 1.0 1.0 80-120 70-130 80-120 80-120 A4500-Cl B 07/03/08 15:46 i ljl E353.2 ATryaJOA 05:32 I eli-b ND ug/L ND ug/L ND ug/L ND uglL r 13 %REC 1 19 ToREC 110 %REC 92.0 %REC SW626OB sw8260B SW8260B sw82608 SWE2608 sw8260B sw8260B sw8260B o7t02l08 16:43 / dkh O7EAAA 16;43 / dkh 07lO2lO8'16:43 / dkh OTIOa|OA 16:43 / dkh 07/02/08 l6:43 / clkh 07/02/08 16:43 i dkh 07/02/08 16:43 I dkh A7fi2108 16:43 / dkh Report DEfinltlons: RL - Analyle reporting limit. QCL - Quality control limit. MCL - Maximum contaminant level. ND - Not dotected at the roporting timit.I I I I ENERGY LABOfrAfOHEg lNC. . 2393 Sefi Creek Highway (B!0ol) ' PO. Box 3258 ' Caspst: WY 82602 {o/1 Free888.235.0515 . 307335.0515 ' Fax 307.234.1639 ' casper@enorgylab.com'nwwenergylab.com I I Client: ProJeet: Lab lD: Client Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Quarter Chloroform c08061320-009 '1w4"24 Report Dater 07/17/08 Collectlon Dater 06/25/08 08:46 DateRocelved: 06/27108 Matrix: Aqueous I Analy$6s R$ult Unlts Quallflers RL Ir[CL/OCL Method Analysls Date / By I I I T T T I I T I I I MAJOR IONS Chloride Nitrogen, Nitrate+Nitilte as N VOLATILE ORGANIC COMPOUN DS Carbon tstrachlorkJe Chlorolotm Chloromethano Methylens chlodde Surr: l,2.Dichlorobenzene.d4 Surr: Dibromofl ugromethane Sur: p-Bromofluorobenzene Surr: Toluene-dB ,l 0.05 834 mg/L 45.3 mg/L A4500-Cl B 07/03/08 16:16 I ljl E353.2 07l12l}g 05:41 / eli-b SW8260B 07/04/08 15:43 I dkh SWE260B 07/04108 15:43 / dkh SW8260B 07/04108 15:43 I dkh SW8260B 07/04/08 15:43 / dkh SW8260B 07/04/08 15:43 I dkh SW8260B O7t04108 t5:43 l dkh sw8260B 07/04/08 15.43 I dkh SW8260B 07/04108 15:43 / dkh ND 1.4 ND ND 114 100 113 s2.0 uilL ug/L ug/L ugtL %REC %REC ToREC %REC 1.0 1.0 1.0 1.0 80-'t20 70-130 80-120 80-120 Report RL - Analyte reporting limit. Definltione; eCL - euality conuol ,imit. MCL - Maximum conlaminant level. ND . Not detected at the reporting limitI I I I ENERGY LABOfrATORIES, lNC. , ?393 Sall Creek HEhway (8260t) ' P.O. Box 3?58 ' Caspu WY 82602 Toll Free 888.235.0515 ' 307 235.0515 ' Fax 307.234.1639 ' casper@energylab.com ' w{w.energylab.com T I I Client: ProJect: Lab lD: Client Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Qua(er Chloroform c08061320-001 TW4-25 Report Date: 07/17/08 Collection Date: 06/25/08 07:45 DateReceived: 06/27108 Matrix: Aqueous Rosult Units Quallfiers RL MCUOCL Method Analysis Date / By I I I t t T T t I I I I MAJOR IONS Chloride Nitrogen, Nitrato+Nirito as N VOLATILE ORGANIC COMPOUNDS Carbon tottachloride Chloroform Chloromethane Methylene chlorlde Sun: 1,2-Dichlorobenzgned4 Sun: Dibromoffuoromethane Surr: p.B/0moffuorobenrene Surr: Toluone-d8 1 0.05 344 mg/L 22j mg/L A4500-ct B E353.2 SW826OB sw82608 SW826OB sw8260B sw82608 SW826OB SW8250B sw8260B 07/03/08 15 15 / rjr 07112108 05:26 I eli-b 07/03/08 '12:53 / dkh 07/03/08 12:53, dkh 07/03/08 12:s3 I dkh 07/03/08 t2:53 / dkh 07/03/08 12:53 / dkh 07/03/08 12:53 / dkh 07/03/08 12:53 / dkh 07/03108 12:53 / dkh ND ND ND ND 108 96.0 r10 92.0 ug/L ugtL ug/L uglL %REC ToREC o/oREC o/oREC 1.0 1.0 1.0 1.0 80-120 70-130 80-120 80.1 20 Report RL - Analyte reporting limit. Delinltlons: eCL - euality controt ltmii. MCL - Maximum contaminant level. ND - Not detected at the reporting limitI I I I ENERGY LABOEATORIES, lNC. . 2393 Salt Creek Hrghway (8260il . P.O. Box 3258 . Caspec WY 82602 Toll Free880.235.05t5 . 307.235.0515 , Fax 302234.1639 . casper@energylab.mm.www.energytab.cun I I Cllent: Project; Lab lD: Cllent Sample lD LABORATO RY ANALYTICAL REPORT Denlson Mines (USA) Corp Znd Quanar Chloroform c08061 320-029 TW4-60 Report Date: 07/17108 Collection Dete: 06/23/08 14:40 DateReceived: ffi127fi8 Matrlx: Aqueous T Result Unlts Ouallflers RL MCUQCL Method Analysis Date I By I I I I I I I t T I I I MAJOR IONS Chloride Nrtrogon, Nit.ate+Nitrite as N VOLATILE ORGANIC COMPOUNDS carbon letrachloride Chloroform Chloromethans Methylene chloride Su rr: I,2.Dichlorobenzen+d4 Surr: Dibromofluorometheno Surr: p-Bromoflirorobanzene Surr: Toluena-dB 1 0.05 ND mg/L ND mg/L 44500-Cr B E353.2 sw8260B sw82608 sw82608 sw82608 sw82608 sw8260B SWB260B sw82608 O7l07tgB 17:02 t til 07112108 06:53 / eli"b 07 to7to& 13-40 / Ckh 07107/08 13:40 / dkh O7l97rc$ 13:40 / dkh 07107n& 13:40 / dkh 07/07108 13:40 / dkh OTlOTnA l3:40 / dkh 07/07/08 13:40/dkh 07l}7l0g 13:40 / dkh ND 13 ND ND 115 105 118 88.0 ug/L ug/L ug/L ug/L %REC %REC %REC %REC 1.0 t.0 1,0 1.0 80-1 20 7&130 8t)-120 E0-1 20 I t I Report RL - Analyto reporting limit Dalinitions: eCL - euality contfol limit. MCL - Maximum contaminanl IBV€|. ND - Not detected at the reporting lirIlit, I ENERGY LAEOfrATOfrlEg ltlO. ' 230,? Salt Creek Hrghway (82601) ' PO. *ox 3258 ' Caspet WY 82602 TollFree888.235.0515 , 307.235.0515 . Fax 307.234.1639 ' casper@eneroylab.com'www:energylab.cont T t Client: Project: Lab lD: Cllent $ample lD LABORATORY A NALYTICAL REPO RT Denison Mines (USA) Corp 2nd Quarter Chloroform c08061320-030 TW4€3 Report Date: 07/17108 Collection Date: 06/23/08 14:02 DateReceived: 06127 108 Matrix: Aqueous T Result Unlts Quallfler$ RL MCL'OCL Method Analysls Oate I By T T I I t I I I t t I I MAJOR IONS Chloride Nitrogen. Nitrate+Nitrite as N VOLATILE ORGANIC COMPOUN DS Carbon tetrachlorido Chlorolorm Chloromethg,re Methylene chlofido Surr: 1,2-Dichlorobenzen e-d4 Surr: DibromofluoromethanE Sun: p-Bromofluorobenzeno Surr: Toluene.dB ND mgIL NO mglL 1 0.05 A4500-ct B E353.2 sw8260B sw82608 SW826OB sw8260B sw8260B sw8260B SW826OB SW826OB 07/07108 17:07 t til 07112/OB 06:48 I elFb 07/07/08 14:19 / dkh 07/07,08 14:19 I dkh o7l07lOA l4:19I dkh 07107108 l4:19 / clkh 07r07O8 14:19 / dkh 07i07,08 14:19 / tlkh 07n7n8 14'1S ' dkh 07/07/08 14:19 / tlkh ND ND 1.4 ND 118 113 '1 t4 s0.0 ugrL ug/L ug/L ugtL %REC %REC %REC %REC 1.0 1.0 1.0 1.0 80-120 70-1 30 80-1 20 80.1 20 Report RL - Analfe rEporting limjt. Oeflnltlons: eCL - Ouallty controt limit. MCL - Maxirnum contaminant level. ND - Not dotected at the rsporting lirnit,I I I I t ENERGY LABOfrATOREA NC. . 2393 Satt Creek HEhway 182601) . P.O. Box 3258 ' Carpet WY 82602 TottFree888.tj5.05t5 , 307.235.05t5 ' Fax 302234.1639 ' casper@energylab.con'tvww.energylab.cont I I Client: Proiect: Lab lD: Client Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) CorP 2nd Quarter Chloroform c08061 320-027 TW4.65 Report Date: 07/17108 Goliectlon Date: 06/25/08 09:30 DateRecelved: aBETlog Matrix: Aqueous I Analysos Result Units Ouallflert RL MCUQCL Mcthod Analysis Dato / Ey 29 mg/L ND mgll I t t I I I t t I I I I t I T MAJOR IONS Chlorido Nitrogen, Nilrale+Nilrite as N VOLATILE ORGANIC COMPOUNDS Carbon tetrachlori{re Chloroform Chloromethane Methylene chloride Sun: l,2.Dichlorobenzenod4 Sun: Dibromofluoromethane Sur: p-Bromofluorobenzene Sun: Toluene-d8 1 0.05 1.0 1.0 1.0 1.0 80-120 70-r30 80-120 80.120 A4500-Cl B 07/0ilO8 16;53 / ltl E3s3.2 07112108 05:54 i eli-b ND ug/L ND ug/L ND ug/L ND ug/L 1ts %REC 121 %REC113 %REC 88.0 %REC sw8250B sw8?608 sw82608 SWE2608 SW82608 sw82608 sw8260B SW826OB 07/07/08 16:15, dkh 07107t0816:15/ dkh 07107fiA 16:15/ dkh 07/0748 16:15/dkh OTl07l08 16: 15 / dkh 07107t08 16:15 / dkh O7t0ll08 l6:15 / dkh OT|OTIOB 16:15 / dkh Report Definltlone: RL - Analyto reporUng limit. QCL - Qual(y c€ntral lirnrl. MCL - Maximum crnlaminant level. ND - Not detected ai th6 reporting lirnit. I ENEFQY LAAOflATOEIES, lNC. ' 2393 Satt Creek Highway (8260t) , PO. fiox 9258 ' Caspil WY 82602 hlt Free 888.235.0515 . 307.235.0515 , Fax 307 234.1639 , casper@energylab.com'www.energylab.cont t I Client: Project: Lab lD: Glient Sample lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Quarter Chloroform c08061 320-028 TW4-70 Report Date: 07/17108 Collection Date; 06/25108 16:20 DateRecelved : AGl27 108 Matrh: Aqueous T Analys6s Result Units Qualifiers RL MCUOCL Method Analysls Date, Ey I I I T I I I I I I t I MAJOR IONS Chloride Nrlrogen. Nit.ate+NitritB as N VOI.ATILE ORGANIC COMPOUN OS Carhon totrechlondo Chloroform Chlommethane Methylene chtoridE Surr: 1,2-Dichlorobenzeno-d4 Sun: Dibromofl uoromethane Sun: p-Bromofluorobenzene Sun: Toluene-dB 1 0,05 45 msiL ND mg/L A4500-Cl B 07/07/08 16:55 I ljl E353.2 ATl12t08 06:52 / elr-b ND ND ND ND 120 122 11r 89.0 ug/L uS/L ug/L ug/L ToREC %REC %REC %REC 1.0 1.0 1.0 't.0 80-120 70-130 80-120 80.120 sw8260B SW8260B sw8260B sw8260B SW826OB SWB26OB SW82608 sw82608 07/07/08 17.33/dkh OllOTlOA 17:33 / dkh o7t07108 17:33 i dkh 07/07108 '17:33 I dlrh 07/07/08 17:33/dkh 07i07/08 17:33/dkh 07fi7t08 t7:33 / dkh 07t07l08 17:33 / dkh Report RL - AnalytB teporting llrnit, Definltlons: eCL - euatity controt timit. MCL. Marimum contaminant level. ND - Not detsctod at th8 reporting limit.I I t I ENERCY LABOqA|OEIES, tNC. . 2393 Salt Creel Hbhway (82601) . P.O. Box 3258 . Caspet W 82602 To|tFree888.235.0515 ' 907.235.05/5 ' Fax 3022e4.$39 ' casper@energylab.com'www.energylab'com I I Client: Project: Lab lD: Cllent Samplo lD LABORATORY ANALYTICAL REPORT Denison Mines (USA) Corp 2nd Quarter Chloroform c0806132G031 Trip Blank Report Date: 07/17108 Collection Date: 06/25/08 16:20 DateReceivedz O6127 lO8 Matrix: Aqueous I Analyses ReBUlt Units Qualifiers RL MCUQCL Method Analysie Oate I By I t I I I t I t I I I I VOLATILE ORGANIC COMPOUNDS Carbon tetrachloride Chloroform Chloromothane Methylene chloride Sun: 1,2-Dichlorobenzene-d4 Surr: Dibromofl uoromelhane Surr: p-Bmmofluotobenrene Sun: Toluen+d8 NO ug/L ND ug/LND ug/L ND uglL114 %REC 105 %REC 112 %REC s0.0 %REc 1.0 1.0 1.0 10 8G120 70-1 30 80-1 20 60-1 20 sw8260B sw8260B sw8260B SW8260B sw82608 sw82608 SW8260B sw82608 07t07t0813:01 / dkh 07i07/08 13:01 I dkh 07107/08 13:01 / dkh 07107/0E 13:Ol , dkh 07107/08 13:O1 I dkh 07/07/08 t3:01 /dkh 07/07/08 13:01 /dkh 07/07i08 13:01 rdkh Report Definltlons: RL - Analyte reportlng limit OCL. Quality control llmit. MCL - Maximum contaminant level. ND - Not detected at the reporting limit. T T t t ENEnGy LABOflATORES, tNC. . 2393 Satt Creek Highway (s260t) ' Po Box 3258 '. Caspet WY 82602 iott Free 888.255.05t5 . 307235 AS|S , Fax 307.234.1639 ' casper@energylab.com ' ,rww.energylab,com I t I I t I ANALYTICAL SUMMARY REPORT July 17, 2008 Denison Mines (USA) CorP 6425 S Hwy 191 Blanding, UT 84511 Workorder No.: C08061320 Quote lD: Prolect Name: Znd Ouarter Chloroform C1640 - POC Wells / Monthly Groundwater Sampling Energy Laboratories, Inc. received lhe following 31 sernples from Denison Mines (USA) Corp on 6Pl|2AOB fof analysis. Sample lD Cllent Sample lD Collect Date RecelvE Date Matrix c08061 320-001 TW4-25 06/25/08 07:45 06/27108 Aqueous Chloride Nitrogen, Nitrate + Nitrite SW8260B VOCs, Standard List c08061320-002 TW4-3 cdaoorezo-ootru+l2 06125108 10:55 06127108 Aqueous Same As Above 06/25/08 14:48 Q6127 108 Agueous Same As AbovsI I I I I c08061320-004 TW4-13 c0806'1320-005 TW4"8 06/25/08 14:56 06ri27/08 Aqueous Same As Above 06/25/08 16:20 06/27108 Aqueous Same As Above c08061320-006 TW4-23 ____?u125l08 I 1i1 06!11101 - _Aqueous SameAs Above c08061320-007 TW4-14 06/25/08 'u:9_'_YTg Aqueous Sarne AsAbove c08061320-008 TW4-e 06/25108 1O:45 06127 lg$Aqueous Same AsAbove c0806132S.009 TW4-24 06/25/08 08:46 06/27108 Aqueous Same As Above c0806132G.010 TW4-18 c08061320-011 TW4-16 06/25/08 O8:17 OOI27 ta9 Aqueous Same As Above 06125/08 08:34 06/27108 c08061320-012 TW4-5 c08061320-013 TW+6 Aqueous Same As Above 06i25/08 10:34 06t27108 Aqueous Same As Above 06X25/08 15.25 OGt27l08 Aqueous Same As Above c08061320-014 TW4-I1 06125/08 12:14 OBl27 108 Aqueous Sarne As Above Aqueous Sarne As AboveIc08061320-015 TW4-21 06/25/08 08:05 06/27108 c08061320-016 TW4-,l0 06/25108 10:22 06127108 Aqueous SameAs Above c08061320-017 TW4-22 06/25/08 08:56 06/27108 Aqueous Same As Above I I c08061320-018 TW4-1 c08061320-019 TW+7 c08061320-020 TW4-4 c08061320-021 TW4-2 06/25/08 15:42 06t27 108 Aqueous SameAsAbove 06/25/08 1 5:51 06t27 IOB Aqueous SarneAs Abovo 06/25/08 15:35 06127108 Aqueous SameAs Above 06125/08 12:25 ffi127t08 Aqueous Same As Above I c08061320-022 TW4-17 c08061320-023 MW-4 len1nl 09:30 06/27108 Aqueous Same As Above 06/25/08 l6:08 06/27108 Aqueous Same As Above c08061320-024 TW4-15 06125/08 16:50 08/27108 Aqueous Same As Above I I t c08061320-025 TW+20 O6t25lOB 17 :'lO OGf27 IOB Aqueous Same As Above EtlEfrOy LABORATORIES, lNC. . 2393 Salt Creek Highway (8260t) ' PO. Box 3258 ' Caspq WY 8?602 tottFree8&8.235.05l5 , 307.?35.0515 . Fax 307.234.1639 ' caspet@eneryylals.com'www.eneqylab.cofft c08061320-026 TW4-19 06/25/08 17:22 ffi127108 Aqueous Same As Above c08061320-027 TW4-6s 06/25/08 09:30 06/27108 Aqueous Sarne As Above c08061320-028 TW4-70 c08061320-029 TW4-60 06/25108 16:20 06127108 Aqueous Same As Above 06/23/08 fi:aO AB,27I08 Aqueous Same As Above I I I I I I I I I I I t I I I T I t I c08061320-030 TW4-6s 06/23/08 14:O2 O6127lO8 Aqueous Same As Above C08061320-031 Trip Blank 06/25/08 '18.20 ffi127108 Aqueous SW8260B VOCs, Standard List As appropriate, any exceptions or problems with the analyses are noted in the Laboratory Analytical Report, the QAJQC Summary Report, or lhe Case Narrative. lf you have any questlons regarding these tests results, please call. ReportApprovedBv: #* r%-- ENEEOY LABOFATOfrIE$,INC. '239? Satt Creek Highway (82601) 'PO. &ox 3?58 ' Casper, WY82602 Totl FreeB88.?35.05,5 . 307.235.0515 , Fax 307.234.1639 . casper@energylab.corn'www:energylab.com QAIAC Summary Report Client: Project; Denison Mines (USA) Corp 2nd Ouarter Chloroform Report DatEt 07/17108 Work Order: C08061320 Analyte Result Unlts RL %REC Low Llmit Hlgh Llmlt FPO RPDLlmlt Qual Method: Sample lDl Chloride Samplo lD: Chlonde 9ample lD; Chlorids Sample lD: Chloride Sample lD: Chloride Sample lDl Chloride A4500-cl B MBLK$,O8O7O3A LCS35{807034 c08061 320-008AMS c08061320408AMSD c08061320.018AMS c0806't 320{18AMSD Method Blank ND mg/L Laboratory Conlrol Sample 3510 mg/L Sample Metrix Spiko 107 mg/L Sample Makix Spike Duplicate 107 mglL Sample Matrix Spike 157 mg/L Sample Matrix Spike Duplicate t 57 mqll Run: TITRATION_080703A Run: TITRATION_080703A 90 110 Run: TITRATION_0807034 90 110 Run: TITRATION_080703Ag0 110 0.0 Run: TITRATION_0807034 s0 110 Run: TITRATION_080703A r00 100 s0 110 0.0 Batch: 080703A-CL-TTR-W 07/03/08 l2:27 07/03/08 l4:57 07J03/08 15:56 07/03O8 t5:58 l0 07/03/08 16:59 07/03/08 t7:00 10 s9 't 02 0.4 1.0 1.0 r021.0 1.0 1.0 t I I T I t I t I t I t I I I I I I T Method: Sample lD: Chloride Sample lD: Chlorido Sample lD: Chloride Sample ID: Chloride gample lD: Chloride Sampl6 lO: Chloride A,tEm.Cl B MBLKg-o807074 c08061320-t,24AMS C0806132042,14!rSD LCS35.0807074 c08070275-00tAilrs c0807027s.00lAMsD Mothod Blank ND mg/L Sample Matrix Spike 180 mgiL Sample Matrix Spike Duplicate 176 mdl Laboratory Control Samplo 3550 mg/L Sample Matrix Spike 110 mg/L Samplo Matrix Spike Duplicate 108 mdl Run: TITRATION_0807078 Run: TITMTION_0807078 s0 110 Run: TITRATION_0807078 90 110 Run: TITRATION_0807078 90 110 Run: TITRATION_0607078 90 110 Run: TITMTION-0607078 90 'l t0 Batctr: 080707A-C[-TTR-W 07/07/08 t4:18 o?t47fi8 16-26 07107/08 16:29 2.O l0 07/07i08 t6'34 0Tt}llOB 17:17 OTlOTlOB 17:19 r.3 10 '101 '101 0.4 1.0 1,0 1.0 1.0 1.0 Qualifiers: RL - Analyte reporting llmit.ND - Not detecled at the reporting limrt- ENEBGY LABOEATORIES, lNC. . 2393 Satt Creelr Highway (82601) . P0. Bax 3258 ' Caspu WY 82602 TollFree888.235,0515 . 307,235.0515 . Fax 307.234.1639 . casper@energylab.com.wwwenergylab.com QA/QC Summary Report Cllenfi Denison Mines (USA) Corp Project: 2nd Quarter Chloroform Report Date: 07117108 Work Order: C08061320 , Analyte Result RL o/oREC Low Llmit High Limit RPD RPDLImIt QUAI I I I t I I t I I I I I I I I T I t I Method: E363.2 Samplo lD: MBLK Nitogsn, Nitrate+Nitrite as N Samplc lD: LFB Nitrogen, Nilrete+Nitrito as N Sample lD: C080G1320-0t38 Nitrogen. Nilrate+Nitrite as N Samplc lD: C08061320{138 Nitrogen, Nitrato+Nitrita as N Sample lDr C06081t20{278 Nitrogen, Nitrato+Nitrito as N Sample l0: C08061320.0278 Nitrogen, Nitrate+Nitrits as N Samplo lD: 808083104.0308MS Nitrogen, Nitrate+Nitrite as N Sample lD: 808063104{,30BMSD Nitrogen, Nitrale+Nltrite as N Method Blank 0.007 mg/L Laboratory Fortified Blank 1.02 mg/L Sample Matrix Spake 1.SG mgL Sample Matrix Spika Dupllcate 1,S8 mg/L Sample Matnx Spike 0.604 mgL Sample Malrix Spike Duplicate 0.609 mg/L Sample Matrix Splke 1.00 mS/L gamplo Matrix Spike Duplicate 0.995 mg/L Run: SUB-811393E Run: SUB-8113938 90 110 Run: SUB-BI13938 90 110 Run; SUB-8113938 90 110 Run: SUB-B11393E 90 110 Run: SUB-Bl 13938 90 t10 Run: SU&Bl 13938 90 110 Run: SUBB1 13938 90 110 Batch: B_R113938 07,12/08 05:15 07/t2lOB 05:.l6 07/12/OB 05:39 07/12/08 05:a0 10 07/12lOB 05:55 s 07i r2108 05 57 10 s 07/12/08 06:50 07/12/08 06:51 10 0.002 0.050 0.050 0.050 0.050 0.050 0.050 0.050 'l 10 101 Qualifiers: RL - Analylo reporting limit. S - Spike recovery oulside of advisory limits. ND - Not detecled at the reporting lirnrt. t ENERGY UIEOqATORIES, lNC. , 2393 Satt Creek Highway P!60t) ' PO. Box 3258 ' Caspil WY 82602 To{1 Free888.235.0515 '307.235.0515 'Fax 307.?34.1639 'casper@energylab.com'www.energylab.com I I QA/QC Summary Report Client: Denison Mines (USA) CorP Project 2nd Quarter Chloroform Report Date: 07/17/08 Work Order: C08061320 108 80 98 70 105 80 94 80 ND ug/L ND ug/L ND uflt ND ug/L I I I I t t I I I t I I I I t T Analyte Melhod: SW8260B $ampl€ lD: 02*Ju!-06-LGS-S Carbon tetrachloride Chloroform Chloromsthane Methylene chloride Su rr: 1,2-Dichlorobenzeoe-d4 Su rr: Dibromotluotomelhane Surr: p-Bromofl uorobanzene Su(: Toluened8 Sample lD: 02Ju|-08-MBLK-6 Carbon tetrachloride Chloroform Chloromelhane MBthylono chlorids Su rr: 1,z-Dichlorohenzer6-d4 Sun: Dibromolluoromethane Sun: p-Bromofluorobenzene Sun: Toluene-dB Sarnple lD: C0806i 20a.008EMS Carbon tetrachloride Chloroform Sun: 1,2-Dichlorobenzene.d4 Su rr: Dlbromofluorom€thane Su rr: p-Bromofluorobonzene Surr: Toluene-d8 Sample lD: C08061294-008EMSD Carbon t6trachlorlde Chloroform Su rr: 1.2-Dichlorobgnzcn6d4 Sun: Dibromofl uoromethane Sun: p-Bromofluorob€nzsne Siln: Toluens-d8 RL %REC Low Llmlt High Limit RPD RPDLimit Qual Laboratory Control Sample 10.0 ug/L 9.7 ug/L 7.9 uilL 8.2 ug/L Method Blank Sample Matrix Spike210 ug/L210 ug/[ Sample Matrix Spike Duplicate 22O udl 220 udt Run: GCMS2-0807028 Batchr Rl03697 07102/08 10: I 5 07l92tOB 12:11 07/03108 04:20 07/03/08 04:59 20 2A 10 10 10 10 't.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.5 100 70 97 70 79 70 82 70 99 80 8S 70 103 E0 99 80 130 130 130 130 120 130 130 120 Run; GCMS2-0807028 10 10 1.0 1.0 1.0 1.0 10 l0 '1.0 '1.0 1.0 1.0 7A 70 80 70 EO 80 120 130 r20 r20 130 130 r20 130 't20 120 130 130 120 130 1?0 120 Run: GCMS2-0807028 105 105 110 108 116 92 10s 70 109 70 1rl 80 104 70 117 80 92 80 Run: GCMS2-0807028 3.7 3.7 0.0 0.0 0.0 0.0 Qualiflers: RL - Analyto reportlng llmit.ND - Not detected at the reporting limit I ENERGY LABORATORIES, lNC. . 2393 Satt Creek Highway (82601) . RO. Box 3258 ' Casper, WY 82602 Totl Free888.135.0515 . 307.135.0515 , Fax 307.234.1639 . casper@energylab.com'wwwenergylab.nm I I QAIQC Summary Report Client: Project: Denison Mines (USA) Corp 2nd Quarter Chloroform Report Date: 07/17/08 Work Order: C08061320 I Analyte UnltB RL %REC Low Llmlt Hlgh Limll RPD RPDLImit OuaI 106 80 93 70 106 80 94 80 ND ug/L ND ug/L ND ugil ND ug/L I t t I I I t T I T I I Mothod: SW8260B Sample lD: 04Jul-08-LC8-6 Carbon letrachloride Chloroform Chloromethane Methylono chlorids Sun: 1, 2-Dichlorobenzene-d4 Sun: Dibromofl uoromethane Surr: p-Bmmofluorobenzene Surr: Toluene-dg Sample lO: 04-Jul-0E-MBtK-7 Carbon tetrachloride Chloroform Chlorom6thane Methylene chlorlde Su rr: ,|,2-Dichlorobenzened4 Su rr: Dibromofluoromethane Sun: p-BromofluorobonzBne Surr: Toluene-dE Sample lD: C08061320-016CMS Carbon tetrachloride Chloroform Surr: 1,2-Dichlorobenzene-d4 Sun: Dibromofl uoromethane Sun: p-Bromofluorobenrene Sun: Toluene-d8 Carbon tetrachlorlde Chloroform Sun: 1,2-Dichlorobenzene.d4 Surr: Dlbromofl uoromothane Surr: p-Bromoflu orobenzene Sun; Toluone-dB Laboratory Control Sample 1 1 ug/L 10 ug/L10.0 ug/L 8.7 ugll Method Blank Sample Matrix Spike 2300 ug/L 3100 ug/t 2400 ug/L 3100 ug/t {.0 1.0 1.0 1.0 1.0 1.0 1.0 1"0 0.5 0.5 0.5 0.5 108 100 100 87 97 86 102 98 120 '106 1t5 1t1 123 90 70 7A 7A 70 80 70 80 80 70 70 80 70 80 80 100 r00 1.0 1.0 1.0 1.0 100 100 1.0 1.0 1.0 1.0 r20 130 120 120 130 130 120 130 120 t20 130 r30 120 130 120 120 3.7 1.3 0.0 0.0 0.0 00 Run: GCMS2_0807044 r30 r30 130 130 120 130 130 120 Run: GCMS2_080704A Batch; Rl03771 0710*108 12:29 07104/08 13:46 07/05108 13;40 S 07/05/08 14:19 20 20 10 10 10s r0 Run: GCMS2-0807044 116 70 104 70 1r9 80 1r5 70 128 80 87 80 Sample lD: C08061320-026CmSD Sample Matrix Spike Duplicate Run: GCMS2-0807G4A T I T Quallflers; RL - Analyte reporting limit. S - Spike reeovery outside of advisory limits. ND - Not det€cted at the Isporting limit I ENERGY LAAORATOEIES, tNC. , 2393 Salt Creek Htbhway 18260t) . PO. Box 3258 ' Caspu WY 82602 TottFree888.235.0515 . 307.?35.0515 . Fax 307.334.1639 , casper@energylaD.com'wwwenergylab.com T t QAIQC Summary Report Client Denison Mines (USA) CorP Project: 2nd Ouarter Chloroform Report Date: 07/17108 Work Order: C08061320 I I I Analyte Result Units RL %REC Low Limit High Llmit RPD RPDLimlt Qual i I I I I I T I I T I I I Method: sw8260B Sample lDi 07.Iul-0E-LcS-3 Carbon letrachloilde Chloroform Chlommethane Methylene chloride Su rr; l, 2-Dichlorobenz,ene-d4 Sun: Dibromofluoromethane Su rr: p-Bromofluorobenzena Surr: ToluenedB Sample lD: 07Jut-08-MBL[6 Carbon letrachloride Chloroform Chloromotheno Methylene chloride Sur: l, 2-Dichlorobenzene-d4 Sur: Dibromofl uoromethane Sun: p-Bromofluorobonzene Sur: Toluene-dB Sample lD: C0806i364"0054MS Carbon tetrachloilde Chloroform Su rr: 1,2-DichlorobEnzene-d4 Sun: Dibromofluoromethan6 Sun: p-Bromofluorobenzene Sur: Toluens,dB Sample lD: C0806135,il{05AMSO Carbon tetrachlorido Chlorotorm Sun: l, 2-Dichlorobenzene-d4 Sur: Dibromofluoromethane Surr: p-Bromofluorobonze60 Surr: Toluene-d8 Laboratory Control Sample 11 uilL 10 ug/L 10 uS/L 8.9 ug/L Method Blank ND ugil. ND ug/L ND uqtl- ND ug/L Sample Matrix Spike 3700 uE/L S600 ug/L Sample Matrix Spike Duplicato 10000 ug/L 10000 ug/L Run: GCMS2_0807074 Batch: R1038'12 07/07108 10:26 07tO7lOB 12:23 O7/08/08 03:53 07108/08 0a:31 20 20 10 10 10 10 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.5 0.5 05 0.5 130 130 130 130 120 130 130 120 105 70100 70103 70 89 70 98 80 s3 70 104 80 E8 80 Run: GCMS2_080707A 500 500 1.0 1.0 1.0 '1.0 500 500 1.0 1.0 1.0 t.0 70 70 80 70 80 80 120 130 r20 120 130 130 120 130 120 120 130 130 120 130 120 r20 6.8 4.5 0.0 0.0 0.0 0.0 112 80 102 70 108 80 90 80 Run: GCMS2_0807074 97 70 96 T0 1r0 80 100 70 113 80 94 80 104 100 110 s9 113 94 Run: GCMS2-0807074 I I I Qualifiers: RL - Analyto reportiflE limlt.ND . Not detected at the reporting liIYlit, EG} ,1,e,:1r Eg, 6 EcE.o(acx eod ErE :frEo-Eoo,bE5.s*E .EE6Ei (/,Eo o E ].E€6 or EEEE$1' EP 8or= l6 e5C6o (''tfst;E=As'i'*E* EE=bI'UE66r EtE"-:.Ei!-, .=E6t;= tlE{ (d ;s.E.cE: f fi II6{it.s l! #FEgtssE IEs Itlo -'=orE> d EEeo! o BETEBUILBBI :e.i.e I -go Eo(, { Nt{+ \t \.,Hg\TIu,- ! =lEt-t\ E.ftisgs( GZ Eg tJItroocfi, b o o E6z o -o. 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I H'g Pl5q= 1 TEEI;eE I'E.S r: Io-.8 c I ;EfiI€ EEEIE U (tVI) punoeurn_l HS1H o OSHCVILV 33S .teqt6,(EssEotE X uortelogenEpilos/s|loSretEMJF g sJouleluoc lo JaqunN = o Lo'traEetr oE q)t/ti;J E'E =oTE ngP <iEN JEg C{b,.o <o=IL (E otro-X &E o 5.E OJEEEs CJ EeSe E HE 66e=cn Ea,oo ct E .9thh({ o.ogl-c .Y r.*E; E" dUE Foa.;re+:€t oib.g EE*E EE6i: (aEo oh-o too;EEo!4 s|ESZt Ec8U tr= oE 2EO <EETet;u=hoE,=H;EbE EE:b(l0=ItE L TEE "-I.E65.=E'EgTE ;E"E.EE c €H Eq c{itosJE \h;sE;9fi.# b eP - ESEtm -'=o€E>d 3He6,9 ao '+F tE=glLfEOy E# eo E Eoa)c -! o *{ og) fi,o o;EELorofl EEE,ir.lEAEOP =EETTOHtrE(J (E: .H# Es(E#tr8<fr!rttrElEE hEtr6OEJJL.,t H,rloJt(JEtrto! ?01.=rr[H 6* IHH I I I I I I t I t I I I I I T I T I T T I I t Energy Laboratories lnc Workorder Recei pt Checkl ist Denison Mines (USA) Corp I :::::::=::::::::::::::::::::::::::::::::::::::::::::::::::r::::::::::::::::::::::::::::::::::::: Contact and Correctivo Action Comments; I None t I I I I ItfilIfl Iilfiil fllililtfiilil[Iffi fiil c08061320 r Login completed by: Kimberly Humiston Date and Time Received: 6127DA08 9:45 AM I Reviewed by: Received by: lm Reviewed Date: Carrier name: Next Day Air T Shippingconlainer/cooleringoodcondilion? Yes fl No D NotPresent n I Custody seats intact on shipping containericooler? Yes [[ No E Not Present ! - Custodysealsintactonsamplebottles? Yes E No E NotPresent [l t Chaln of custodypres€nt? Yes pl No E I Chaln of custody slgned when rellnqulshed snd recerved? Yes E No D Chain of custody agrees with eampls labels? Yes [f No f] t Sampleslnpropercanlalner&ottle? ves [t No fl Sample containers intact? Yes [[ No E I SufficiEnl sample volume forindicaled test? Yes ffi No EI All samples receivedwithin holding tim6? Yes [l No E I Conlainer/Temp Blank temperalure in compliance? Yes [l No D 6'C On lce I Water-VOAvialohawzeroheadspace? Yes [t No n NoVOAvialssubmitM n Water - pH acceptable upon receipl? Yes Bl No E Not Applicable tr I T ENEFGY LAEOEAfiOilES, lNC. , 2393 Satt Creek Highway (82ffi1) . PO. $ox 3258 ' Caspet WY 02602 Toll Free 888.235.0515 . 307.235.0515 . Fax 302234.1639 . casper@energylab.com'wmaenergylab.com I Date. 17-Jul-08 I I I I I I I I I I T I T T t I T CLIENT: ProJect: Denlson Mines (USA) Corp 2nd Quarter Chloroform CASE NARRATIVE Sample Dellvery Group: C08061320 THIS IS THE FINAL PAGE QF THE I.ABORATORY ANALYTICAL REPORT 0RTGlNAL SAMPLE SUBMITTAL(S) All original sample submittals have been returned with the dala package, SAMPLE TEMPERATURE COMPLIANCE: 4'C (t2"C) Temperature of samples received may not be considered properly preserved by accepted standards. Samples thal are hand delivared immediately after collection shall bo 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 intendsd as a drinking water method for low TDS waters. Data provided hy his method for non potable waters should be viewed as inconsislenl, RADON IN AIR ANALYSIS The deslred expoeure tirne is 48 hours (2 days). The lime delay in relurning the canister to lhe laboratory for processing should be as short as possible to avoid excessivo docay. Maximum recommondod delay bet!\reen end ol exposure to beginning of counting should not exceed I days. SOIUSOLID SAMPLES All samples reported on an as received basis unless othemise indicated. ATRAZINE. SIMAZINE AND PCB ANALYSIS USING EPA 505 Data for Atrazine and Simazine are reported from EPA 525.2, not from EPA 505. Data reported by ELI using EPA method 505 reflects the resulls for seven individual Aroclors. \A/hen the results for all seven are ND (not detected), the samplo meets EPA compliance criteria for PCB monitoring. SUBCONTRACTING ANALYSIS Subconlracting of sample analyses lo an outside laboralory may be required. lf so, ENERGY LABORATORIES will utilize its branch laboratories or qualified conlract laboratories for this service, Any such laboratories will be indicated within lhe Laboratory Analytical Report. BRANCH LABORATORY LOCATIONS eli-b - Energy Laboratories, lnc. - Billings. MT eli-g - Energy Laboratories, lnc. - Gilleite, tlfY oli-h - Energy Laboratories, lnc. - Helena, MT eli-r . Energy Laboratories, lnc, - Rapid City, SD eli-t - Energy Laboratories, lnc. - College Station, TX CERTFICATIONS: USEPA: WY00002; FL-DOH NELAC: E8764llArizona: 420699; California: 02118CA Oregon: V1fr200001 : Uta h : 30723505 1 5: Vitginia: 00057 ; Washington: C 1 903 lSo 17025 DISCLAIMERT The results of this Analytical Report relate only to the items submitted for analysis. ENERGY LABORATORIES, lNC. - CASPER,WY certifies that certain method selections contained ln this report meet requirements as eet forth by the above accrediting authorities. $ome results lequested by the client may not be covered under these certifications. All analysis data to be submitted for regulalory enforcemont should be certilied in the sample state of origln. Please verify ELI's certificalion coverage by visiting www.energylab.com ELI appreciates lhe opportunity to provide you witlr this analytical Bervice. For additional information and services visit our web page www. energylab. com, Page I of 1 Steve Landau From: Steve Landau Friday, August 29,2008 3:13 PM 'Dane Finerfrock' Aftachments: C08061 320.csv Dear Mr. Finerfrock, Attached to this email is an electronic copy of all laboratory results for chloroform monitoring conducted during the 2nd Quarter, 2008, in Comma Separated Value (CSV) format. Yours truly, Steven D. Landau Sent: To: 8/2912008 I I I I I E(/ JLN /?t..--0, \\t-)Frt(/)\u.l F. =,/t <{ \ \\ ilil lt tl \l ll\// t-:> -;F // t/// .& tl tl \\ \\\N\ AI T38S MW-20 al.lS\\\\ \//t\--z o gooo SCALE IN FEET MW-22 O.lS EXPLANATION perched monitoring well showing25oo concentration in uc/l 6 ronn temporary perched monitoring wellv I vvv showing concentration in uc/l 'l*;3 perched piezometer (not sampled) Mw-32 perched monitoring well installed April, 2005 * *o showing concentrauon in uc/l A.^^ temporary perched monitoring well installedY '-" April, 2005 showing concentration in uc/l * *o temporary perched monitoring well installed' May, 2007 showing concentration in uG/l NOTES: ND = not detected, NS = not sampled; /7 /l',t1 t; l1 ^lr 1l gl 1l 1l 1l 1l 1l 1l 1l 1l 1l 1l 1l gl gl 1l HYDRO GEO CHEM,INC. KRIGED 2nd QUARTER, 2008 CHLOROFORM (uG/L) WHITE MESA SITE H :I/ 1 8000/aug08/cht0608. srf IIIIIIIIIIIIII Water Levels and Data over Time White Mesa MilI - Well MW4 Measuring Length Water Land Point Of Total or Measured Total Total Depth to Depth to Depth Elevation Surface Elevation Riser Date Of Water Water Of 5.620;77 5.622.33 1.56 I t t 5,527.63 5,527.63 5,528.43 5,529.93 5,528.03 5,528.03 5,527.93 5,527.93 5,525.93 5,528.33 5,528.13 5,528.33 5,528.93 5,528.93 5,528.93 5,528.83 5,512.33 5,528.91 5,528.83 5,529.16 5,526.66 5,529.16 5,529.08 s,529.00 5,528.75 5,528.91 5,528.25 5,529.00 5,528.33 5,529.10 5,529.06 5,529.21 5,529.22 5,529.43 5,529.40 5,529.53 5,529.86 5,529.91 5,529.77 5,529.79 5,530.13 5,529.85 9l2slt979 toltoll979 1/10/1980 3120/1980 6lt7ll980 9/ls/1980 10/8/1980 2lt2lt98l 9l,/1984 t2/U1984 2lUt985 6lt/t985 9lu1985 10/l/1985 I l/1/1985 t2/111985 3ll/1986 6lt9l1986 9nt1986 t2/U1986 212011987 4128/t987 8lt4lt987 tU20/1987 U2611988 6/U1988 812311988 tt/2/t988 319/1989 6t2U1989 9lvt989 tUr5l1989 2n611990 sl8/1990 81711990 tUt3l1990 2/2711991 5l2Ul99l 8127lt99t t2l3ll99l 3/t711992- 611111992 94.70 94.70 93.90 92.40 94.30 94.30 94.40 94.40 96.40 94.00 94.20 94.00 93,40 93.40 93.40 93.50 110.00 93.42 93.50 93.17 95.67 93.17 93.25 93.33 93.s8 93.42 94.08 93.33 94.00 93.23 93.27 93.12 93.1 1 92.90 92.93 92.80 92.47 92,42 92.56 92.54 92.20 92.48 93.r4 93.r4 92.34 90.84 92.74 92.74 92.84 92.84 94.84 92.44 92.64 92.44 91.84 91.84 91.84 91.94 108.44 91.86 91.94 91.61 94.11 91.61 91.69 91.77 92.02 91.86 92.52 91.77 92.44 9t.67 9t.71 91.56 91.55 9t.34 9t.37 91.24 90.91 90.86 91.00 90.98 90.64 90.92 I I I t I (WL) (LSD) (MP) (L) Monitoring (blw.MP) (blw.LSD) Well *sil:";t;il.1P':l;:;ilq:", Lengthof Riser Measured Depth to Total DePth to Water Total DePthof Welt Land Surface Measuring Point Etevation Date of ^Y11?1 t23.6 I I I Water Elevation 5,529.90 5,529.92 5,530.25 5,530.20 5,530'19 5,529;15 5,530.98 5,531.35 5,531'62 5,532'58 5,533'42 5,534'70 5,535'44 5,531'16 5,538'37 5,539'10 5,539'13 5,542'29 5,551'58 5,552'08 5,552'83 5,553'4',1 5,554'63 5,555'13 5,555'13 5,556'03 5,555'73 5,555'98 5,556'05 5,556'18 5'556'05 5'556'15 5'556'18 5'556'11 5,556'26 5'556'35 5'556'38 5'556'39 5'556'5'l 5'556'68 5'556'73 5'556'82 6l'tl1996 gtr6t1996 3t20t1991 417tr999 5/11/1999 11611999 gt28l1999 1/3/2000 414t2000 512t2000 5/11/2000 5/15/2000 5t2512000 5,620.11 :u:lgl1992 3124t1993 6/8/1993 gt22t1991 r2ll4l1993 3124t1994 6trsl1994 8/18/1994 :rzl1.3l1994 3tr6t1995 6t2111995 gt20lr995 :2lrrl1995 312811996 5,622.33 gttlttggz 92.43 92.4r 92.08 92.r3 92.r4 92.58 91.35 90.98 90.71 89'75 88-91 87.63 86'89 90.87 90.85 90.52 90.57 90.58 91.02 89.79 89.42 89.15 88.19 87.35 86.07 85.33 85.17 83.96 $.23 83.20 80.04 10;15 10.25 69.50 68.86 61.10 67.20 66.60 66.30 66.60 83.61 82.40 81.67 81.64 78.48 69.19 63.69 6'.1.94 67.30 66.14 65.64 65'04 64.14 65.04 6/9/2000 6/16/2000 6t26t2000 116t2000 1|32000 7/18/2000 112512000 8/2/2000 8/9/2000 8/15/2000 8/31/2000 9/8/2000 9/13/2000 * 9/20/2000 66.35 66.28 66.15 66.28 66.18 66.15 66.16 66.07 65'98 65.95 65.94 65.76 65.65 65.60 65.51 64.19 64.12 64.59 64.12 64.62 64.59 64.60 64.51 64.42 64.39 64.38 64.20 64.09 64'04 63.9sI I I I I I Water Levels and Data over Time White Mesa Mill - rWell MW4 Water Land Elevation Surface Measuring LengthPoint Of Elevation Riser Date Of Total or Measured Depth to Water Total Depth to Water Total Depth of WellI.M .LSD 1.56 123.6s.620.77 I I I t I I I t I I I I T I I 5,556.84 5,556.81 5,556.89 5,556.98 5,557.01 5,557.14 5,557.17 5,556.95 5,557.08 5,557.55 5,557.66 5,557.78 5,558.28 5,558.23 5,558.31 5,558.49 5,558.66 5,559.01 5,559.24 5,559.26 5,559.27 5,559.77 5,559.78 5,559.96 5,560.16 5,560.28 5,560.76 5,560.58 5,560.43 5,560.44 5,560.71 5,560.89 5,557.86 5,561.10 5,561.39 5,561.41 5,561.93 5,561.85 5,536.62 5,528.56 5,535.28 5,534.44 63.93 63.96 63.88 63.79 63.76 63.63 63.60 63.82 63.69 63.22 63.11 62.99 62.49 62.54 62.46 62.28 62.11 61.76 61.53 61.51 61.50 6r.00 60.99 60.81 60.61 60.49 60.01 60. l9 60.34 60.33 60.06 s9.88 62.91 59.67 59.38 59.36 s8.84 58.92 84.1 5 92.21 85.49 86.33 912912000 6s.49 10/5/2000 65.s2 1011212000 65.44 t011912000 65.35 t0/2312000 65.32 1y912000 65.19 ryt4l2000 6s.16 1u2U2000 65.38 11/30/2000 65.25 t21712000 64.78 Ut4/2001 64.67 21912001 64.55 3t29/2001 64.05 4t3012001 64.10 5l3ll200l 64.02 612212001 63.84 7lt0l200r 63.67 8t2012001 63.32 9lt9l200l 63.09 t0l2l200t 63.07 r|812001 63.06 t2l3l200l 62.56 U3/2002 62.5s 21612002 62.37 312612002 62.17 41912002 62.0s 512312002 61.57 61512002 6t.75 718t2002 61.90 812312002 61.89 9ltll2002 6r.62 1012312002 61.44 ty2212002 64.47 t21312002 6r.23 u912003 60.94 2n212003 60.92 312612003 60.40 41212003 60.48 5n12003 85.71 6/912003 93.77 71712003 87.05 - 81412003 87.89 I I I Water Levels and Data over Time White Mesa Mill - Well MW4 Water Land Elevation Surface Measuring LengthPoint Of Elevation Riser Date Of Total or Measured Depth to Water Total Depth to Water Total Depth of Well.MI 622.33 123.6 I I I I I I t I I I I I I I I 5,537.10 5,539.96 5,535.91 5,550.70 5,557.58 5,558.80 5,560.08 5,560.55 5,561.06 5,561.48 5,561.86 5,529.17 5,536.55 5,529.00 5,541.55 5,541.12 5,540.59 5,542.85 5,537.91 5,548.67 5,549.53 5,544.36 5,545.16 5,544.67 5,541.28 5,536.96 5,546.49 5,546.15 5,545.15 5,545.91 5,545.90 5,548.16 5,547.20 5,547.20 5,547.79 5,545.09 91tU2003 t0/2/2003 tU712003 12t312003 ilt5/2004 211012004 3t28/2004 41t212004 51t312004 6lt8/2004 712812004 8130/2004 9/1612004 t0/1U2004 rUr6/2004 1212212004 Ut8/2005 2128/2005 3ns/200s 4/2612005 5t24/2005 6t3012005 0712910s 09112105 09127/05 r2t712005 3t812006 6/1312006 7l18/2006 tUt71206 2t27t2007 s/212007 8n3/2007 10n012007 3t26/2008 6t2s12008 85.23 82.37 86.42 71.63 64.75 63.53 62.25 61.78 6t.27 60.8s 60.47 93.16 85.78 93.33 80.78 81.21 8r.74 79.48 84.42 73.66 72.80 77.97 77.r7 77.66 81.05 85.37 7s.84 76.18 7'1.18 76.42 76.43 74.17 75.13 75.13 74.54 77.24 83.67 80.81 84.86 70.07 63.19 61.97 60.69 60.22 59.71 59.29 58.91 91.60 84.22 9t.77 79.22 79.6s 80.1 8 77.92 82.86 72.10 7t.24 76.41 75.61 76.10 79.49 83.81 74.28 74.62 75.62 74.86 74.87 72.61 73.57 73.57 72.98 75.68 I T I I Water Levels and Data over Time White Mesa MiIl - Well TW4-1 Water Measuring Length Land Point Of Total or Measured Total Depth to Depth to Water Water Total Depth ofElevation Surface Elevation Riser Date Of(WL) &SD) (MP) &) Monitorins (blw.MP) (blw.LSD) Well I I I t I I I t I I I I I I I z 5.622.33 5,540.98 5,541.13 5,541.23 5,541.23 5,540.98 5,541.03 5,541.03 5,540.93 5,541.23 5,541.23 5,541.33 5,541.43 5,541.73 5,541.43 5,541.43 5,541.18 5,540.93 5,541.23 5,541.43 5,541.33 5,541.63 5,541.33 5,541.63 5,54t.63 5,541.65 5,541.63 5,541.85 5,541.79 5,541.91 5,542.17 5,542.31 5,542.43 5,542.41 5,542.08 5,542.93 5,542.87 5,543.09 5,543.25 5,543.44 5,544.08 5,544,49 ty8lt999 ty9lt999 U212000 Ut012000 U1712000 U24/2000 2/U2000 21712000 2lt4/2000 212312000 3/t/2000 31812000 3n512000 3t2012000 312912000 4/4/2000 4t1312000 412r/2000 412812000 5/t/2000 5nU2000 5lt5/2000 5/25/2000 61912000 611612000 612612000 7/6/2000 71t312000 7lt8/2000 712712000 812/2000 81912000 8lls12000 8l3t/2000 91y2000 9t8t2000 9n3t2000 912012000 r0/512000 1t/9/2000 - 12/612000 81.35 81.20 81.10 81.10 81.35 81.30 81.30 81.40 8 1.10 8 1.10 8l.00 80.90 80.60 80.90 80.90 81.15 81.40 81.10 80.90 81.00 80.70 81.00 80.70 80.70 80,68 80.70 80.48 80.54 80.42 80.16 80.02 79.90 79.92 80.25 79.40 79.46 79.24 79.08 78.89 78.25 77.84 80.33 80.18 80.08 80.08 80.33 80.28 80.28 80.38 80.08 80.08 79.98 79.88 79.58 79.88 79.88 80.13 80.38 80.08 79.88 79.98 79.68 79.98 79.68 79.68 79.66 79.68 79.46 79.52 79.40 79.14 79.00 78.88 78.90 79.23 78.38 78.44 78.22 78.06 77.8',1 77.23 76.82 I I I T Water Levels and Data over Time White Mesa Mill - Well TW4-1 Measuring LengthPoint Of Total orMeasured Total Total Depth to Depth to DepthWater Land Elevation Surface Elevation Riser Date Of Water Water Of (WL) (LSD) MP) (L) Mo4rtori.rs (bl*.MP) (blw.LSD)Well 5.620.77 5.622.33 t.02 1l 1.04 I I I t I I I I I I t I t I I 5,546.14 5,547.44 5,548.71 5,549.20 5,549.64 5,549.94 5,550.25 5,550.93 5,551.34 5,551.59 5,549.64 5,549.94 5,550.25 5,550.93 5,551.34 5,551.59 5,551.87 5,552.40 5,552.62 5,553.t2 5,553.75 5,553.97 5,554.56 5,554.54 5,554.83 5,555.29 5,555.54 5,555.94 5,556.02 5,556.23 5,556.49 5,556.67 5,557.15 5,557.23 5,556.07 5,554.28 5,553.84 5,553.39 5,553.06 5,553.33 5,553.25 5,553.82 76.19 74.89 73.62 73.13 72.69 72.39 72.08 71.40 70.99 70.74 72.69 72.39 72.08 71.40 70.99 70.74 70.46 69.93 69.71 69.21 68.58 68.36 67.77 67.79 67.50 67.04 66.79 66.39 66.31 66.10 65.84 65.66 65.18 65. l0 66.26 68.05 68.49 68.94 69.27 69.00 69.08 68.51 75.17 73.87 72.60 72.t| 71.67 71.37 71.06 70.38 69.97 69.72 7r.67 7t.37 71.06 70.38 69.97 69.72 69.44 68.91 68.69 68. l9 67.56 67.34 66.75 66.77 66.48 66.02 65.77 65.37 65.29 6s.08 64.82 64.64 64.16 64.08 65.24 67.03 67.47 67.92 68.25 67.98 68.06 67.49 1/1412001 21212001 3129/2001 4/3012001 5131/200r 6/22/2001 7/to/2001 8ltol2001 9l19/2001 tol2l200l st31/200t 6l2l/2001 7/1012001 812012001 9lt9l200l tol2/2001 lll8l200t tzl3l200t U3/2002 216/2002 3/26t2002 4/9/2002 5123/2002 61s12002 71812002 812312002 9/tt/2002 t012312002 tu22/2002 1213t2002 t/9/2003 2lt2/2003 3/26/2003 412/2003 5n/2003 61912003 71712003 81412003 9ltt/2003 1.0/212003 1U712003 - t2l3/2003 I T I I Water Levels and Data over Time White Mesa Mill - Well TW4-1 Water Land Measuring LengthPoint Of Total or Measured Total Total Depth to Depth to Depth Water Water OfElevation Surface Elevation Riser Date Of(WL) (LSD) MP) (L) Monitoring (blw.MP) (blw.LSD) Well z 5.620.77 5.622.33 111.04 I I I I I I t I I I I T I I I 5,555.61 5,556.32 5,557.38 5,557.79 5,558.35 5,560.03 5,560.36 5,557.96 5,557.24 5,556.28 5,556.17 5,556.21 5,555.82 5,555.96 5,556.01 5,556.05 5,556.00 5,555.97 5,555.90 5,556.22 5,556.25 5,556.71 5,556.98 5,560.95 5,557.07 5,558.10 5,557.82 5,557.82 5,557.63 5,559.48 5,560.35 yts12004 2n012004 3t28/2004 4n212004 5n3/2004 6/18/2004 7t2812004 8t30t2004 9/t612004 r0ny2004 LUt6l2004 12t22/2004 r/181200s 21281200s 3n512005 412612005 5/2412005 6/30/2005 7l29lO5 9/t2/05 121712005 31812006 611412006 7t18/2006 tU712006 2t2712007 5t2t2007 8n4/2007 r0/1012007 3t26t2008 6124/2008 66.72 66.01 64.95 64.54 63.98 62.30 61.97 64.37 65.09 66.05 66.16 66.12 66.51 66.37 66.32 66.28 66.33 66.36 66.43 66.11 66.08 65.62 65.35 61.38 65.26 64.23 64.51 64.51 64.70 62.8s 61.98 65.70 64.99 63.93 63.52 62.96 61.28 60.95 63.35 64.07 65.03 65.r4 65.10 65.49 65.35 65.30 65.26 65.31 65.34 65.4r 65.09 65.06 64.60 64.33 60.36 64.24 63.21 63.49 63.49 63.68 61.83 60.96 I T I I Water Levels and Data over Time White Mesa Milt - Well TW4-2 Water Land Measuring LengthPoint Of Elevation Surface Elevation Riser Date Of hl GSD) (MP) (L) Monitoring (blw.MP) (blw.LSD) Well s.623.10 5.625.00 1.90 l2l.l25 Total or Measured Total Total Depth to Depth to Depth Water Water Of t I t T I I I t I I I I I I I 5,548.85 5,548.85 5,548.60 5,548.80 5,548.60 5,549.00 5,548.90 5,548.90 5,549.30 5,549.40 5,549.50 5,549.60 5,549.50 5,550.20 5,550.00 5,549.70 5,549.80 5,550.00 5,550.10 5,550.10 5,550.40 5,550.10 5,550.40 5,550.40 5,550.50 5,550.35 5,550.45 5,550.45 5,550.46 5,550.61 5,550.66 5,550.68 5,550.70 5,550.82 5,551.15 5,551.25 5,551.32 5,546.1I 5,546.75 5,547.16 5,552.46 76.15 76.15 76.40 76.20 76.40 76.00 76.10 76.t0 75.70 7s.60 75.50 75.40 75.50 74.80 75.00 75.30 75.20 75.00 74.90 74.90 74.60 74.90 74.60 74.60 74.50 74.65 74.55 74.55 74.54 74.39 74.34 74.32 74.30 74.18 73.85 73.75 '73.68 78.89 78.25 77.84 72.54 74.25 74.25 74.50 74.30 74.50 74.10 74.20 74.20 73.80 73.70 73.60 73.50 73.60 72.90 73.r0 73.40 73.30 73.10 73.00 73.00 72.70 73.00 72.70 72.70 72.60 72.75 72.65 72.65 72.64 72.49 72.44 72.42 72.40 72.28 7r.95 71.8s 71.78 76.99 76.35 75.94 70.64 t7l8lt999 tU9l1999 u2t2000 Ur0t2000 lt1/2000 U2412000 2/t/2000 2/712000 2lt4/2000 2/2312000 31U2000 31812000 3115/2000 312012000 3129/2000 4t4t2000 4/1312000 412U2000 412812000 51U2000 5lt,72000 51t512000 5t2s/2000 61912000 6/16/2000 6/2612000 7/612000 7n3/2000 711812000 7/2712000 8/2/2000 81912000 8/15/2000 8/3U2000 9/812000 91t312000 9t20/2000 tol5/2000 1U912000 r2t6t2000 - U26/2001 Water Levels and Data over Time White Mesa Mill - Well TW4-2 Measuring Length Water Land Point Of Total orMeasured Total Depth to Depth to Total Depth ofElevation Surface Elevation Riser Date Of Water Water (z) (LSD) MP) (L) Monitorins @lw.MP) (blw.LSD) Well 5.623.10 5.625.00 1.90 rzt.t25 I I I I 5,552.48 5,551.38 5,551.87 5,552.31 5,552.61 5,552.92 5,553.60 5,554.01 5,554.26 5,554.42 5,555.07 5,555.02 5,555.19 5,555.43 5,555.67 5,556.01 5,556.07 5,556.19 5,556.32 5,556.53 s,557.00 5,556.70 5,557.29 5,557.48 5,557.63 5,558.1 I 5,558.15 5,553.99 5,549.26 5,548.42 5,548.03 5,547.50 5,547.96 5,547.80 5,548.57 5,554.28 5,555.74 5,557. 18 5,557.77 5,558.35 5,558.47 5,559.28 70.62 71.72 71.23 70.79 70.49 70.1 8 69.50 69.09 68.84 68.68 68.03 68.08 67.9r 67.67 67.43 67.09 67.03 66.91 66.78 66.57 66.10 66.40 65.81 65.62 65.47 64.99 64.95 69.11 73.84 74.68 75.07 75.60 75.14 75.30 74.53 68.82 67.36 65.92 65.33 64.75 64.63 63.82 212/2001 72.52 31291200t 73.62 4130/2007 73.13 sl3y200t 72.69 612u200r 72.39 7/10/2001 72.08 812012001 7t.40 9/1912001 70.99 rot2t200t 70.'t4 1ll08/01 70.58 t2l03lot 69.93 ou03lo2 69.98 02t06t02 69.81 03/26102 69.57 o4l09lo2 69.33 05t23t02 68.99 o6l0sl02 68.93 07108102 68.81 08123102 68.68 09nU02 68.47 10123102 68.00 lv22l02 68.30 t2/03/02 67.7r 01109103 67.52 02lt2lo3 67.37 03126103 66.89 04t02103 66.85 05/01/03 71.01 06/09/03 75.74 o7l07lo3 76.58 08lo4lo3 76.97 ogltvo3 77.50 t0102103 77.04 tv07/03 77.20 12103/03 76.43 0vt5l04 70.72 021t0/04 69.26 03/28/04 67.82 04112/04 67.23 051t3/04 66.65 06lt8lo4 66.s3 - 07128/04 65.72 I T Water Levels and Data over Time White Mesa Mill - Well TW4-2 Water Elevation (z) Measuring LengthLand Point Of Surface Elevation Riser Date Of Total or Measured Total Total Depth to Depth to DepthWater Water Of(LSD) 6naP)(L) Monitorins Olw.MP) (blw.LSD) Well 5,623.10 5,625.00 L90 t2t.t25 5,554.54 5,552.25 5,549,93 5,550.17 5,550.65 5,550.23 5,550.37 5,550.41 5,550.46 5,550.60 5,550.49 5,550.39 5,550.61 5,550.57 5,55 1.58 5,551.70 5,550.80 5550.80 5553. l7 5,552.34 5,552.30 5,552.48 5,554.86 5,555.51 08/30104 091t6104 t0ltu04 tU16/04 12122t04 01/18/05 02/28105 03/t5l0s 04126105 05/2410s 06/30/0s 07/29tos 091t2/0s t2/07/05 03/08/06 06/t4lo6 07/18t06 t1t07/06 2/27/2007 51212007 8114/2007 t0/10t200'1 3/26/2008 612412008 70.46 72.75 75.07 74.83 74.3s 74.77 74.63 74.59 74.54 74.40 74.51 74.61 74.39 74.43 73.42 73.3 74.20 74.20 71.83 72.66 72.7 72.52 70.t4 69.49 68.56 70.85 73.17 72.93 72.45 72.87 72.73 72.69 72.64 72.50 72.61 72.71 72.49 72.53 71.52 71.40 72.30 72.30 69.93 70.76 70.80 70.62 68.24 67.59 I I I I Water Levels and Data over Time White Mesa Mill - WelI TW4-3 Measuring Length Water Land Point Of Elevation Surface Elevation Riser Date Of Total or Measured Total Depth to Depth toWater Water Total Depthof hl [SD) (MP) (L) Monitorins Olw.MP) (blw.LSD) Well 5.631.21 5.632.23 1.02 141t I I I I I I I I I I I I I I 5,565.78 5,566.93 5,567.03 5,566.83 5,567.13 5,567.33 5,567.13 5,567.43 5,567.63 5,567.73 5,567.83 5,567.70 5,568.03 5,567.93 5,567.63 5,567.83 5,568.03 5,568.23 5,568.13 5,568.53 5,568.23 5,568.53 5,568.61 5,568.69 5,568.45 5,568.61 5,568.61 5,568.49 5,568.55 5,568.65 5,568.73 5,568.77 5,568.76 5,568.95 5,568.49 5,568.67 5,568.96 5,568.93 5,569.34 5,568.79 5,569.1I tU29l1999 U212000 U1012000 Ut7/2000 U2412000 2ll/2000 21712000 21t412000 2123/2000 3lt/2000 318/2000 3/1s12000 3t20t2000 3/29t2000 41412000 4t13t2000 4/2U2000 4t28/2000 51U2000 5/rU2000 s/1512000 512512000 6t912000 61t612000 6t26t2000 7/612000 716/2000 7/1312000 7n812000 7/2712000 8/212000 81912000 8lt6/2000 813U2000 91812000 9/1312000 912012000 tol5/2000 1v912000 r21612000 - U3/200t 66.45 65.30 65.20 65.40 65. l0 64.90 65.10 64.80 64.60 64.50 64.40 64.53 64.20 64.30 64.60 64.40 64.20 64.00 64.10 63.70 64.00 63.70 63.62 63.54 63.78 63.62 63.62 63.74 63.68 63.58 63.50 63.46 63.47 63.28 63.74 63.56 63.27 63.3 62.89 63.44 63.t2 65.43 64.28 64.1 8 64.38 64.08 63.88 64.08 63.78 63.58 63.48 63.38 63.s1 63.18 63.28 63.58 63.38 63.18 62.98 63.08 62.68 62.98 62.68 62.60 62.52 62.76 62.60 62.60 62.72 62.66 62.56 62.48 62.44 62.4s 62.26 62.72 62.54 62.25 62.28 6r.87 62.42 62.10 I I I I Water Levels and Data over Time White Mesa Milt - WelI TW4-3 Measuring LengthWater Land Point Of Elevation Surface Elevation Riser Date Of(z) (LSD) (MP) (L) Monitoring Total orMeasured Total Total Depth to Depth to Depth Water Water Of (blw.MP) (blw.LSD) Well 5.631.21 5.632.23 t.02 141 I I t I I I I I I I I I I I I 5,569.',l5 5,570.34 5,570.61 5,570.70 5,570.88 5,571.02 5,57t.70 5,572.12 5,572.08 5,570.70 5,570.88 5,571.02 5,571.70 5,572.12 5,572.08 5,572.78 5,573.27 5,573.47 5,573.93 5,574.75 5,5'14.26 5,575.39 5,574,84 5,575.33 5,575.79 5,576.08 5,576.30 5,576.35 5,576.54 5,576.96 5,577.11 5,577.61 5,572.80 5,577.89 5,577.91 5,577.53 5,577.50 5,577.71 5,577.31 5,577.33 5,577.34 5,578.24 2/912001 31281200t 4130/2001 st3r/2001 6/21/2001 7n012001 8/2012001 9lt9l200l t0/2/2001 5/31/2001 6t2U2001 7ltol200l 812012001 9/19/2001 t0l2/2001 t!8/2001 t213/2001 t/3/2002 2/6/2002 3t2612002 419/2002 5/2312002 615/2002 7t8/2002 8123/2002 9/1U2002 1012312002 1U2212002 121312002 U912003 2/1212003 3t26t2003 4t2/2003 5lt/2003 619/2003 71712003 81412003 9/1U2003 101212003 1U712003 121312003 - Ut5/2004 62.48 61.89 61.62 61.53 61.35 61.21 60.53 60.11 60.15 61.53 61.35 61.21 60.s3 60.11 60.1 5 59.45 58.96 58.76 s8.30 57.48 57.97 56.84 57.39 56.90 56.44 56.15 55.93 55.88 55.69 55.27 55.12 54.62 59.43 54.34 54.32 54.70 54.73 54.52 s4.92 54.90 54.89 53.99 61.46 60.87 60.60 60.51 60.33 60.19 59.s1 59.09 59.1 3 60.51 60.33 60. l9 59.51 59.09 s9.13 58.43 57.94 57.74 57.28 56.46 s6.95 55.82 56.37 55.88 55.42 55.13 54.91 54.86 54.67 54.25 54. l0 s3.60 58.41 53.32 53.30 53.68 53.71 53.50 53.90 53.88 53.87 52.97 Total Depthof I I I I Water Levels and Data over Time White Mesa Mitl - Welt TW4-3 Measuring LengthWater Land Point Of Elevation Surface Elevation Riser Date Of Total orMeasured Total Depth to Depth toWater Water(z) (LSD) (MP) (L) Monitoring (blw.MP) (blw.LSD) Well 5.631.21 5,632.23 1.02 141 I I I I t t I I I I I T I t I 5,578.38 5,578.69 5,579.15 5,579.47 5,579.53 5,580.17 5,580.20 5,580.26 5,580.12 5,579.93 5,580.07 5,579.80 5,580.35 5,580.57 5,580.86 5,581.20 5,581 .51 5,581.55 5,581.68 5,581.83 5,564.92 5,582.73 5,582.33 5,582.75 s583.3s 5,559.57 5,583.29 5,583.49 5,584.95 5,584.59 211012004 312812004 41t212004 51t312004 6/1812004 7/2812004 813012004 9/t612004 t0ltU2004 rUr612004 t2/2212004 U1812005 2/2812005 3/t512005 412612005 5/2412005 6/301200s 07129/05 091t2/05 t2l7/2005 31812006 6/13/2006 7lt8/2006 tU7/2006 2127/2007 5/212007 811412007 t0/t012007 3126/2008 6124/2008 53.85 52.83 s3.54 52.52 53.08 52.06 52.76 51.74 52.70 51.6852.06 51.04 52.03 51.01 51.97 50.95 52.11 51.09 52.30 s1.28 52.16 51.14 52.43 51.41 5l .88 50.86 51.66 50.64 51.37 50.35 51.03 50.01 50.72 49.70 s0.68 49.66 50.55 49.53 50.4 49.38 67.31 66.29 49.50 48.48 49.90 48.88 49.48 48.46 48.88 47.86 72.66 7r.64 48.94 47.92 48.74 47.72 47.28 46.26 47.64 46.62 I I I I Water Levels and Data over Time White Mesa Mill - Well TW4-4 Water Measuring Length Land Point Of Total or Measured Depth to Water (blw.MP) Total Total Depth to Depth Water Of (blw.LSD) Well Elevation Surface Elevation Riser Date Of(z\ [SD) (MP) &) Monitorins 5.612.301 5.613.485 1.184 114.5I I I I I I I t I I I I I I I 5,512.745 5,518.985 5,512.t45 5,517.465 5,520.145 5,521.435 5,522.005 5,522.945 5,523.485 5,523.845 5,523.885 5,524.555 5,513.235 5,516.665 5,519.085 5,522.165 5,524.665 5,5 18.545 5,527.695 5,529.085 5,529.535 5,530.235 5,530.265 5,534.405 5,533.145 5,534.035 5,534.465 5,533.285 5,530.265 5,534.405 5,533.145 5,534.035 5,534.465 5,533.285 5,533.865 5,534.275 5,534.715 5,535.435 5,536.445 5,536.405 5,537.335 512512000 619/2000 6/t6t2000 6/2612000 71612000 711312000 7/t8t2000 712712000 8/212000 819/2000 8n512000 91u2000 9t812000 9n3/2000 9t20t2000 r01512000 1U912000 tzl6/2000 ,/3l200l 219/2001 3/271200r 413012001 5t3,/200t 612212001 7lt0l200t 812012001 9/1912001 t0l2l200t 5t3y2001 612U2001 Tlto/200r 8/2012001 9/t912001 tot2t200t tU8/2001 Lzl3l200r U312002 216/2002 3t2612002 4/912002 = 512312002 101.34 94.50 101.34 96.02 93.34 92.05 91.48 90.54 90.00 89.64 89.60 88.93 100.25 96.82 94.40 9r.32 88.82 94.94 8s.79 84.40 83.9s 83.25 83.22 79.08 80.34 79.45 79.02 80.20 83.22 79.08 80.34 79.45 79.02 80.20 79.62 79.21 78.77 78.05 77.04 77.08 76.15 100.16 93.32 100.16 94.84 92.16 90.87 90.30 89.36 88.82 88.46 88.42 87.75 99.07 95.64 93.22 90.14 87.64 93.76 84.6r 83.22 82.77 82.07 82.04 77.90 79.16 78.27 77.84 79.02 82.04 77.90 79.16 78.27 77.84 79.02 78.44 78.03 77.59 76.87 7s.86 75.90 74.97 I T I I Water Levels and Data over Time White Mesa Mill - Well Measuring Length Water Land Point Of TW4-4 Total orMeasured Total Total Depth to Depth to DePth Elevation Surface Elevation Riser Date Of Water Water Of (z) (LSD) (MP) (L) Monitoring (blw.MP) (blw.LSD) Well 5.612.301 5,613.485 1.184 114.5 I I I I I I T I I I I I I I T 5,537.325 5,537.975 5,538.825 5,539.275 5,539.765 5,540.205 5,540.295 5,540.795 5,540.985 5,541.675 5,541.765 5,541.885 5,542.025 5,541.925 5,541.885 5,541.825 5,541.885 5,541.995 5,542.005 5,542.555 5,542.705 5,543.225 5,543.555 5,543.865 5,543.915 5,544.655 5,544.795 5,544.845 5,544.705 5,544.525 5,544.625 5,544.305 5,544.585 5,544.685 5,544.675 5,544.785 5,544.795 5,544.775 5,545.005 5,545.225 5,545.735 5,545.785 615/2002 71812002 812312002 911y2002 1012312002 tU22/2002 t2/312002 u912003 2lt2/2003 3t26t2003 412/2003 slU2003 6/912003 71712003 81412003 9/11t2003 t01212003 1U712003 tzt3t2003 y1512004 211012004 3/2812004 4/1212004 511312004 611812004 712812004 813012004 9lt6/2004 t0lrt/2004 tUt6/2004 t2122/2004 1/18/2005 212812005 3lrsl200s 4/26/2005 512412005 6/301200s 712912005 911212005 r2l7l200s 31812006 - 6/14/2006 76.16 75.51 74.66 74.21 73.72 73.28 73.t9 72.69 72.50 71.81 7 t.72 71.60 71.46 71.56 7r.60 7t.66 7t.60 71.49 71.48 70.93 70.78 70.26 69.93 69.62 69.57 68.83 68.69 68.64 68.78 68.96 68.86 69.1 8 68.90 68.80 68.81 68.70 68.69 68.7t 68.48 68.26 67.75 67.70 74.98 74.33 73.48 73.03 72.54 72.10 72.01 71.51 71.32 70.63 70.54 70.42 70.28 70.38 70.42 70.48 70.42 70.31 70.30 69.7s 69.60 69.08 68.75 68.44 68.39 67.65 67.51 67.46 67.60 67.78 67.68 68.00 67.72 67.62 67.63 67.52 67.5r 67.53 67.30 67.08 66.57 66.52 I I I Water Levels and Data over Time White Mesa MiU - Well TW4-4 Measuring Length Water Land Point Of Elevation Surface Elevation Riser Date Of(zl (LSD) (MP) (L) Monitoring Total or Measured Total Total Depth to Depth to DePth Water Water Of (btw.MP) (blw.LSD) tr&lt 5.612.301 s,613.485 1.184 114.5 5,545.855 5,545.805 5546.675 5,546.535 5,547.155 5,547.215 5,548.305 5,548.865 7n8t2006 tU7/2006 2/2712007 5/2/2007 8/15/2007 t0/r012007 3t2612008 6124/2008 67.63 67.68 66.81 66.9s 66.33 66.27 65.18 64.62 66.45 66.50 65.63 65.77 65.15 65.09 64.00 63.44 I I I T I I Water Levels and Data over Time White Mesa Mill - Well TW4-5 Measuring Length Water Land Point Of Elevation Surface Elevation Riser Date Of hl (LSD) (MP) &) Monitoring Total or Measured Depth to Water (blw.MP) Total Total Depth to Depth Water Of (blw.LSD) Well 5.638.75 5.640.70 121.75I I I I I t t I I I I I I I I 5,579.30 5,579.60 5,579.35 5,579.60 5,579.50 5,579.50 5,579.90 5,579.90 5,580.20 5,580.00 5,580.04 5,580.70 5,580.30 5,580.00 5,580.20 5,580.40 5,580.50 5,580.50 5,580.90 5,580.50 5,580.75 5,580.80 5,580.92 5,580.80 5,580.90 5,581.05 5,580.90 5,581.05 5,581.06 5,581.08 5,581.07 5,581.25 5,581.32 5,581.34 5,581.41 5,58 1.37 5,581.66 5,58 1.63 5,581.92 5,582.20 5,582.54 u212000 r/1o12000 Ll1712000 U2412000 2n/2000 21712000 2/14/2000 2/23t2000 3/t/2000 31812000 3/t512000 3/2012000 3t2912000 41412000 411312000 412U2000 412812000 51U2000 5/tU2000 s/1s12000 slzs12000 61912000 6lt6/2000 612612000 7/6/2000 711312000 711812000 7/2712000 81212000 819/2000 81t612000 8/3U2000 918/2000 9/13/2000 9/20/2000 t01512000 111912000 t21612000 U3/2001 219/2001 - 3/2812001 6t.40 61.10 61.35 61.10 61.20 61.20 60.80 60.80 60.50 60.70 60.66 60.00 60.40 60.70 60.50 60.30 60.20 60.20 59.80 60.20 59.95 59.90 59.78 59.90 59.80 59.65 59.80 s9.65 59.64 59.62 59.63 59.45 59.38 s9.36 59.29 59.33 59.04 59.07 s8.78 58.50 58.1 6 59.45 59.15 59.40 59.15 59.25 59.25 s8.85 58.85 s8.55 58.75 58.71 58.05 s8.45 58.75 58.55 58.35 58.25 58.25 57.85 58.25 58.00 57.95 57.83 57.95 57.85 57.70 57.85 57.70 57.69 57.67 57.68 57.50 57.43 57.4r 57.34 57.38 s7.09 57.12 56.83 56.55 56.2r t I Water Levels and Data over Time White Mesa Mitl - Well TW4-5 Measuring LengthWater Land Point Of Elevation Surface Elevation Riser Date Ofhl [SD) (MP) (L) Monitoring Total or Measured Depth to Water (blw.MP) Total Total Depth to DepthWater Of (blw.LSD) Well 5.638.75 5,640.70 1.95 121.75 I I 5,582.72 5,582.72 5,582.81 5,582.92 5,583. l7 5,583.28 5,583.36 5,582.72 5,582.81 5,582.92 5,583.17 5,583.28 5,583.36 5,583.49 5,583.84 5,583.79 5,583.96 5,584.39 5,584.12 5,584.55 5,584.42 5,583.65 5,584.90 5,585.02 5,585.20 5,585.15 5,585.42 5,585.65 5,585.65 5,585.92 5,586.22 5,586.01 5,584.81 5,584.34 5,584.40 5,583.88 5,583.57 5,583.39 5,583.97 5,585.28 5,585.50 5,585.87 413012001 5l3l/2001 6122/2001 7lt0/2001 81201200r 9lt9l200l t0l2l200t 5/3U200r 612U2001 7lt0l200t 8t20t2001 9/1912001 to/2/2001 t1l8/200r t2l3l200l U312002 216/2002 312612002 419/2002 512312002 6/s12002 71812002 8/23/2002 91rU2002 10t23t2002 rU2212002 t21312002 u9/2003 2/1212003 3/2612003 4t2/2003 5/l/2003 61912003 7/712003 8/4t2003 9nt/2003 r01212003 tt/712003 121312003 t/1512004 2/10/2004 - 3/28/2004 57.98 57.98 57.89 5'7.78 57.53 s7.42 57.34 57.98 57.89 57.78 57.53 57.42 57.34 57.21 56.86 56.91 56.74 s6.31 56.58 56.15 s6.28 57.05 55.80 s5.68 55.50 55.55 55.28 55.05 55.05 54.',l8 54.48 54.69 55.89 56.36 s6.30 56.82 s7.13 57.31 56.73 55.42 55.20 54.83 56.03 56.03 55.94 55.83 55.58 55.47 s5.39 56.03 55.94 5s.83 55.58 55.47 55.39 55.26 54.91 s4.96 54.79 54.36 54.63 54.20 54.33 55.10 53.85 53.73 53.55 s3.60 53.33 53. l0 53. l0 52.83 52.53 52.74 53.94 54.41 54.35 54.87 55.18 55.36 54.78 53.47 53.25 52.88 I I I I Water Levels and Data over Time White Mesa Mill - WelI TW4-5 Water Land Measuring LengthPoint Of Total or Measured Total Depth to Depth toWater Water (blw.MP) (btw.LSD) Elevation Surface Elevation Riserht (LsD) (MP) &) Date Of Monitoring Total Depth of Well 5.638.75 5,640.70 1.95 121.75 I I I I I I I I I I I t I I I 5,586.20 5,586.45 5,586.50 5,587.13 5,586.22 5,585.69 5,585.17 5,584.64 5,584.77 5,584.65 5,584.98 5,585.15 5,586.25 5,586.79 5,586.52 5,586.03 5,586.05 5,585.80 5,587.06 5,585.90 5,585.32 5,585.35 s585.81 5,585.20 5,586.66 5,586.80 5,588.48 5,586.51 411212004 5/1312004 6/t8t2004 7/28t2004 813012004 911612004 roltU2004 t1/1612004 1212212004 u18/2005 212812005 3/15/2005 412612005 5/24t2005 6/3012005 712912005 9/t2/2005 t2/7/2005 31812006 611312006 7/18/2006 1U712006 2/2712007 5/2/2007 8n412007 tolto/2007 3126/2008 6/24/2008 54.50 54.25 54.20 53.57 54.48 55.01 55.53 56.06 55.93 56.05 55.72 55.55 54.45 53.91 54.18 54.67 54.65 54.90 53.64 54.80 5s.38 55.35 54.89 55.50 54.04 53.90 52.22 54.t9 52.55 52.30 52.25 5t.62 52.53 53.06 53.58 54.11 s3.98 54.10 53.77 53.60 52.50 51.96 52.23 52.72 52.70 52.95 51.69 52.85 53.43 53.40 52.94 53.55 52.09 51.9s 50.27 52.24 I I I I Water Levels and Data over Time White Mesa Mitl - Welt TW4-6 Water Land Measuring LengthPoint Of Total or Measured Total Total Depth to Depth to Depth OfWater Water WelI (btw.MP) (blw.LSD) (blw.LSD) Elevation Surface Elevation Riser Date Of (zl (LSD) (MP) (L) Monitoring 5.607.33 s.608.78 1.4s0 98.55I I I I I I T I I I I t I t I 5,522.28 5,521.51 5,522.35 5,522.14 < \)) )\ 5,522.13 5,522.17 5,522.26 5,522.31 5,522.33 5,522.35 5,522.40 5,522.40 5,522.45 5,522.53 s,s22.39 5,522.42 5,522.29 5,522.63 5 \)) 1) 5,522.90 5,522.70 5,522.89 5,522.88 5,522.96 5,523.10 5,523.23 5,523.21 5,522.89 5,522.88 5,522.96 5,523.10 s,s23.23 5,523.21 5,523.25 5,523.46 5,523.36 5,523.50 5,523.94 5,523.75 5,524.23 5t25t2000 619/2000 6/16/2000 6/26/2000 7/612000 71t312000 7n812000 7125/2000 812/2000 8/912000 811512000 8/3t/2000 9/812000 9n312000 9/2012000 r0/512000 tt/9/2000 t2t6/2000 U3l200t 2/912001 3/261200t 4t30/2001 sl3U200t 612012001 7t10/2001 81201200r 9n9/2001 r0/212001 s13t/2001 6l2t/2001 7/10/200r 8120/2001 9/19/2001 tol2/2001 tU8l200t 12/3/2001 t/3/2002 2/6/2002 312612002 4t9t2002 - 5/23/2002 86.s0 87.27 86.43 86.64 86.53 86.65 86.61 86.52 86.47 86.45 86.43 86.38 86.38 86.33 86.2s 86.39 86.36 86.49 86.1s 86.06 85.88 86.08 8s.89 85.90 85.82 85.68 8s.5s 85.57 85.89 85.90 85.82 85.68 85.55 85.57 85.53 85.32 85.42 85.28 84.84 85.03 84.55 85.0s 85.82 84.98 85.19 85.08 85.20 85.16 85.07 85.02 85.00 84.98 84.93 84.93 84.88 84.80 84.94 84.91 85.04 84.70 84.61 84.43 84.63 84.44 84.45 84.37 84.23 84. l0 84.12 84.44 84.45 84.37 84.23 84.10 84.12 84.08 83.87 83.97 83.83 83.39 83.58 83. l0 I I t I Water Levels and Data over Time White Mesa Mill - Well TW4-6 Water Land Measuring LengthPoint Of Elevation Surface Elevation Riser Date Of Water Well (z) (LSD) (MP) (L) Monitoring (blw.MP)(blw.LSD) (blw.LSD) Total or Measured Depth to Water Total Total Depth to Depth Of s.607.33 5,608.78 1.4s0 98.55 I I I I I I T I I I I I I I I 5,523.98 5,524.31 5,524.36 5,524.49 5,524.71 5,524.60 5,524.94 5,525.10 5,525. l5 5,525.35 5,525.68 5,525.74 5,525.98 5,526.04 5,526.07 5,526.42 5,526.30 5,526.41 5,526.46 5,526.83 5,526.81 5,527.t4 5,527.39 5,527.64 5,527.70 5,528.16 5,528.30 5,528.52 5,528.71 5,528.74 5,529.20 5,528.92 5,529.51 5,529.74 5,529.96 5,530.15 5,530.35 5,530.47 5,530.95 5,531.50 5,532.43 5,533.49 6/512002 "il812002 8123/2002 9nU2002 10123/2002 tt/22/2002 121312002 u9/2003 2/12/2003 3t2612003 4/2/2003 slU2003 619/2003 717/2003 81412003 911u2003 1012t2003 rU1/2003 12t3/2003 Uts/2004 211012004 3128/2004 4lt2/2004 sl13t2004 6/1812004 7/28/2004 8/3012004 9/t6t2004 toltt/2004 tUt612004 12122/2004 r/18t200s 2/2812005 3/t512005 4/2612005 5124t2005 613012005 712912005 9lt2t200s t2/7t2005 31812006 - 6lt3/2006 84.80 84.47 84.42 84.29 84.07 84.1 8 83.84 83.68 83.63 83.43 83.10 83.04 82.80 82.74 82.71 82.36 82.48 82.37 82.32 81.95 81.97 81.64 8l.39 81.14 81.08 80.62 80.48 80.26 80.07 80.04 79.58 79.86 79.27 79.04 78.82 78.63 78.43 78.31 77.83 77.28 76.35 75.29 83.3s 83.02 82.97 82.84 82.62 82.73 82.39 82.23 82.18 81.98 81.65 8l.59 81.35 8t.29 8r.26 80.91 81.03 80.92 80.87 80.50 80.52 80.1 9 79.94 79.69 79.63 79.r7 79.03 78.81 78.62 78.59 78.13 78.41 77.82 77.59 77.37 77.18 76.98 76.86 76.38 75.83 74.90 73.84 Water Levels and Data over Time White Mesa Mill - WelI TW4-6 Water Elevation (z) Measuring LengthLand Point Of Surface Elevation Riser Date Of(LSD) {MP) (L) Monitorins Total or Measured Total Depth to Depth toWater Water (blw.MP) (blw.LSD) Total Depth Of Well (blw.LSD) s.607.33 s"608.78 1.450 98.55 5,532.58 5,532.88 5534.09 5,534.04 5,534.43 5,554.54 5,535.40 5,535.55 7/18/2006 tr/712006 2/27t2007 5t2t2007 8/1412007 t0n012007 3/26/2008 6124/2008 76.20 '15.90 74.69 74.74 74.3s 54.24 73.38 73.23 74.75 74.45 73.24 73.29 72.90 52.79 71.93 71.78 I I I I Water Levels and Data over Time White Mesa Mill - Well TW4-7 Water Land Elevation Surface(WL) (LSD) Measuring LengthPoint Of Elevation Riser Date Of(MP) (L) Monitorins Total Total Depth to Depth OfWater Well (blw.LSD) (blw.LSD) Total or Measured Depth to Water (blw.MP) 5.619.87 5.62t.07 1.20 I19.8I t t t I I t T I I I I I I I 5,552.37 5,553.57 5,553.87 5,553.72 5,553.97 5,553.87 5,553.87 5,554.17 5,554.27 5,554.37 5,554.37 5,554.27 5,554.77 5,554.57 5,554.27 5,554.57 5,554.77 5,554.87 5,ss4.87 5,555.27 5,554.97 5,555.27 5,555.33 5,555.45 5,555.22 5,555.45 5,555.40 5,555.45 5,555.59 5,555.65 5,555.70 5,555.74 5,555.96 5,555.87 5,555.95 5,556.05 5,556.06 5,556.17 5,556.20 5,556.22 5,556.36 tU29lt999 U212000 U1012000 t/1712000 U2412000 2/U2000 2t7/2000 21t412000 2t23t2000 31U2000 318/2000 311512000 3120/2000 3129/2000 4t412000 4/1312000 4/2r/2000 4/28t2000 51112000 5/tt/2000 5/1512000 5/25/2000 6t912000 6/16/2000 6/26/2000 7t612000 711312000 711812000 712712000 8t2t2000 8t912000 8/t6/2000 8/31/2000 918/2000 9/13/2000 9/20/2000 101512000 toltzl2000 1011912000 1012312000 - ll/912000 68.70 67.50 67.20 67.35 67.10 67.20 67.20 66.90 66.80 66.70 66.70 66.80 66.30 66.s0 66.80 66.50 66.30 66.20 66.20 6s.80 66.10 65.80 65.74 65.62 65.85 65.62 65.67 65.62 65.48 65.42 65.37 65.33 65.1 1 65.20 65.12 65.02 65.01 64.90 64.87 64.8s 64.71 67.50 66.30 66.00 66.15 6s.90 66.00 66.00 65.70 6s.60 65.50 65.50 6s.60 65.10 65.30 6s.60 65.30 65.10 65.00 65.00 64.60 64.90 64.60 64.54 64.42 64.65 64.42 64.47 64.42 64.28 64.22 64.17 64.r3 63.9r 64.00 63.92 63.82 63.81 63.70 63.67 63.65 63.s 1 Water Levels and Data over Time White Mesa Mill - WeII TW4-7 Measuring LengthWater Land Point Of Elevation Surface Elevation Riser Date Of Total or Measured Total Total Depth to Depth to Depth OfWater Water Well(WL) &SD) (MP) (L) Monitoring (blw.MP) (blw.LSD) (blw.LSD) 5.619.87 5.621.07 1.20 I19.8 5,556.42 5,556.45 5,556.15 5,556.89 5,557.07 5,557.62 5,557.51 5,557.77 5,557.84 5,557.98 5,558.33 5,558.57 s,558.53 5,558.62 5,559.03 5,559.08 5,559.32 5,559.63 5,559.55 5,560.06 5,559.91 5,560.09 5,560.01 5,560.23 5,560.43 5,560.39 5,560.61 5,560.89 5,560.94 5,561.28 5,561.35 5,546.20 5,539.47 5,541.87 5,542.12 5,541.91 5,544.62 5,542.67 5,549.96 5,557.17 5,558.65 5,559.90 tUt4l2000 1U3012000 r21612000 U14/200r 219/2001 3t29/2001 4/30/2001 5/3U2001 6t2U2001 7lt0l200t 8t20/2001 9/t912001 to/212001 tt/8/2001 t2l3l200l t/312002 21612002 312612002 4t9/2002 s/2312002 615/2002 7/812002 8123/2002 9/tU2002 tol23/2002 1y2212002 121312002 U9/2003 2n2/2003 312612003 4/212003 51112003 61912003 717/2003 81412003 9/tt/2003 t0l2/2003 tU7/2003 r2l3/2003 ilt5t2004 2/1012004 - 3/28t2004 64.65 64.62 64.92 64.1 8 64.00 63.45 63.56 63.30 63.23 63.09 62.74 62.50 62.54 62.45 62.04 61.99 61.7 5 61.44 61.52 61.01 61.16 60.98 61.06 60.84 60.64 60.68 60.46 60.18 60.1 3 59.79 59.72 74.87 81.60 79.20 78.95 79.16 76.4s 78.40 71.11 63.90 62.42 61.t7 63.45 63.42 63.72 62.98 62.80 62.25 62.36 62.10 62.03 61.89 61.54 61.30 61.34 6t.25 60.84 60.79 60.55 60.24 60.32 59.81 59.96 59.78 s9.86 59.64 59.44 59.48 59.26 58.98 58.93 58.59 58.52 73.67 80.40 78.00 77.75 77.96 75.25 77.20 69.91 62.70 6t.22 59.97 I I T I Water Levels and Data over Time White Mesa Mill - WelI TW4-7 Water Measuring Length Land Point Of Date Of Monitoring Total or Measured Depth to Water (blw.MP) Total Total Depth to Depth OfWater Well (blw.LSD) (blw.LSD) Elevation Surface Elevation Riser(WL) (LSD) (MP) (L) 5,619.87 5,621.07 1.20 119.8 I I I I I I I t I I I I I I t 5,560.36 5,560.87 5,560.95 5,56r.64 5,543.00 5,541.91 5,540.08 5,546.92 5,546.97 5,546.51 5,546.66 5,546.81 5,548.19 5,547.11 5,546.98 5,546.92 5,547.26 5,547.26 5,548.86 5,548.62 5,550.04 5,548.32 5,550.44 5,549.69 5,549.97 5,550.30 5,551.92 5,552.94 4lt2/2004 5lt3/2004 611812004 7/2812004 8/30/2004 911612004 t0ltU2004 tt/t612004 12/2212004 1/18/2005 21281200s 3lt5/200s 4t26/2005 5/24/2005 6/30/2005 7/291200s 9n2/200s t2l7/2005 31812006 6n312006 7n8/2006 tU7/2006 2127/2007 st212007 811412007 tolt0/2007 312612008 6t24t2008 60.71 60.20 60.12 59.43 78.07 79.16 80.99 74.r5 74.10 74.56 74.41 74.26 72.88 73.96 74.09 74.15 73.81 73.8r 72.2r 72.45 71.03 72.75 70.63 71.38 71.10 70.77 69.1 5 68.13 59.51 59.00 58.92 58.23 76.87 77.96 79.79 72.95 72.90 73.36 73.21 73.06 71.68 72.76 72.89 72.95 72.61 72.61 71.01 71.25 69.83 71.55 69.43 70.18 69.90 69.57 67.95 66.93 I T I I Water Levels and Data over Time White Mesa Mill - Well TW4-8 Water Land Measuring Length Point Of Total or Measured Depth to Water (blw.MP) Total Total Depth to Depth Water Of (blw.LSD) Well Elevation Surface Elevation Riser Date Of(WL) [SD) (MP) (L) Monitorins s.616.80 5,618.21 l.4l 126.00I I I I I I I I I T T I I I I 5,543.21 5,543.01 5,543.31 5,543.1 I 5,543.41 5,543.31 5,543.31 5,543.71 5,543.76 5,543.86 5,543.86 5,543.91 5,544.31 5,544.21 5,544.01 5,544.21 5,544.41 5,544.51 5,544.51 5,544.81 5,544.51 5,544.71 5,544.71 5,544.81 5,544.68 5,544.76 5,544.77 5,544.76 5,544.92 5,544.96 5,544.98 5,544.97 5,545.21 5,545.31 5,545.43 5,545.56 5,545.57 5,545.81 5,545.66 5,546.28 5,546.70 tU29l1999 u212000 t/1012000 U1712000 U24/2000 21U2000 21712000 211412000 212312000 31U2000 31812000 3/15t2000 312012000 312912000 414t2000 4/1312000 412u2000 412812000 slU2000 sltt/2000 slrs12000 5/2512000 619/2000 611612000 612612000 71612000 711312000 71t812000 712712000 81212000 8t9t2000 8lts12000 8t3r/2000 9t8t2000 911312000 912012000 101512000 rU912000 12t612000 113/2001 - 219/2001 75.00 75.20 74.90 75.10 74.80 74.90 74.90 74.50 74.45 74.35 74.35 74.30 73.90 74.00 74.20 74.00 73.80 73.70 73.70 73.40 73.70 73.50 73.50 73.40 73.53 73.45 73.44 73.45 73.29 73.25 73.23 73.24 73.00 72.90 72.78 72.65 72.64 72.40 72.55 71.93 71.51 73,59 73.79 73.49 73.69 73.39 73.49 73.49 73.09 73.04 72.94 72.94 72.89 72.49 72.59 72.79 72.59 72.39 72.29 72.29 7t.99 72.29 72.09 72.09 71.99 72.t2 72.04 72.03 72.04 71.88 71.84 7r.82 71.83 7 r.59 7t.49 71.37 71.24 7t.23 70.99 71.14 70.52 70. l0 I I I I Water Levels and Data over Time White Mesa MiIt - WelI TW4-8 Measuring Length Water Land Point Of Elevation Surface Elevation Riser Date Of(WL) GSD) (MP) (L) Monitorins Total or Measured Total Depth to Depth toWater Water (blw.MP) (blw.LSD) Total Depth of WelI 5,616.80 5,618.21 l.4l 126.00 I I I I I I I T I I I I I I I 5,547.18 5,547.31 5,547.49 5,547.49 5,547.83 5,548.13 5,548.30 5,548.45 5,547.49 5,547.54 5,547.83 5,548.13 5,548.30 5,548.45 5,548.62 5,549.03 5,548.97 5,549.t9 5,549.66 5,549.64 5,550.01 5,549,97 5,550.13 5,550.30 5,550.50 5,550.90 5,550.83 5,551.04 5,55t.24 5,551.23 5,55 L52 5,551.64 5,549.02 5,544.74 5,543.78 5,543.39 5,543.05 5,543.t9 5,543.21 5,543.40 5,548.10 5,549.50 312712001 413012001 513U2001 6/2012001 7/t012001 8/20t2001 9/1912001 t0/21200r 513U2001 6l2t/2001 7lt0/2001 8120/2001 9/19/2001 t0/2/2001 tt/812001 t2/312001 U3/2002 216/2002 3/2612002 41912002 5/23/2002 61512002 7/812002 8/2312002 9lrt/2002 t0/23/2002 tt/2212002 t21312002 ,/9t2003 2lt2/2003 3t26/2003 4/212003 5/U2003 6/912003 7t7t2003 8t4t2003 9ltt/2003 10t2t2003 rU7/2003 t2/3t2003 t/15t2004 - 2/1012004 7r.03 70.90 70.72 70.72 70.38 70.08 69.9r 69.76 70.72 70.67 70.38 70.08 69.9t 69.76 69.59 69.18 69.24 69.02 68.55 68.57 68.20 68.24 68.08 67.91 67.71 67.31 67.38 67.17 66.97 66.98 66.69 66.57 69.19 73.47 74.43 74.82 7s.16 75.02 75.00 74.81 70.11 68.71 69.62 69.49 69.31 69.31 68.97 68.67 68.50 68.35 69.31 69.26 68.97 68.67 68.50 68.35 68.1 8 67.77 61.83 67.61 67.14 67.16 66.79 66.83 66.67 66.50 66.30 6s.90 65.97 65.76 65.56 6s.57 65.28 65.16 67.78 72.06 73.02 73.41 73.75 73.61 73.59 73.40 68.70 67.30 I I I I Water Levels and Data over Time White Mesa MiU - Welt TW4-8 Measuring Length Water Land Point Of Elevation Surface Elevation Riser Date Of Total or Measured Total Total Depth to Depth to Depth Water Water Of(WL) (LSD) (MP) (L) Monitoring (blw.MP) (blw.LSD) Well s,616.80 5,618.21 1.41 126.00 I I I I I t t I T I I I I I I 5,550.87 5,551.33 5,551.87 5,551.92 5,552.69 5,549.78 5,547.46 5,545.21 5,545.09 5,545.61 5,545.24 5,545.42 5,545.45 5,545.46 5,545.66 5,545.54 5,545.43 5,545.61 5,545.52 5,546.53 5,546.51 5,546.51 5,546.46 5,547.92 5,547.01 5,547.40 5,547.57 5,548.76 5,549.17 312812004 411212004 511312004 611812004 712812004 813012004 9n6t2004 tonU2004 ryt612004 12t22t2004 U1812005 212812005 3/151200s 4/26t200s s/2412005 6130/2005 712912005 911212005 121712005 31812006 611312006 711812006 1U712006 2t2712007 st212007 8fi412007 tolt0/2007 3/26/2008 612412008 67.34 66.88 66.34 66.29 6s.52 68.43 70.75 73.00 73.r2 72.60 72.97 72.79 72.76 72.75 72.55 72.67 72.78 72.60 72.69 71.68 71.70 71.70 71.75 70.29 71.20 70.81 70.64 69.45 69.04 6s.93 65.47 64.93 64.88 64.11 67.02 69.34 71.59 71.7t 71.19 71.56 71.38 71.35 7t.34 7 t.t4 71.26 71.37 71.t9 71.28 70.27 70.29 70.29 70.34 68.88 69.79 69.40 69.23 68.04 67.63 I I I I Water Levels and Data over Time White Mesa Mitl - Well TW4-9 Measuring LengthWater Land Point Of Elevation Surface Elevation Riser Date Of Total or Measured Total Total Depth to Depth to Depth Water Water (WL) (LSD) MP) (L) Monitoring (blw.MP) (blw.LSD) Well 5.636.1 | 5.637 .59 r.48 121.33I I I I I I I I I T I I I I I 5,577.09 5,577.09 5,577.29 5,577.09 5,577.39 5,577.29 5,577.19 5,577.69 5,577.69 5,577.79 5,577.79 5,577.89 5,568.49 5,578.14 5,577.84 5,578.04 5,578.24 5,578.39 5,578.39 5,578.79 5,578.39 5,578.79 5,578.81 5,578.89 5,578.74 5,578.86 5,578.87 5,578.84 5,579.03 5,579.03 5,579.05 5,579.04 5,579.25 5,579.35 5,579.40 5,579.46 5,579.44 5,579.79 5,579.73 5,580.01 5,580.30 1212011999 |2/2000 Ut012000 ll17/2000 U24/2000 2lr/2000 217/2000 21t412000 2123/2000 3/U2000 3t8t2000 3/15/2000 312012000 312912000 4t412000 41t312000 412t/2000 4/28/2000 5lt/2000 5/1U2000 s/1s12000 s/25/2000 6/9/2000 61t612000 612612000 716/2000 7lt3/2000 7/18/2000 7/27/2000 812/2000 819/2000 8/ls/2000 813y2000 9/8/2000 911312000 9120/2000 to/5/2000 rt/9/2000 121612000 7/3/2001 - 2t9/2001 60.5 60.s 60.3 60.5 60.2 60.3 60.4 59.9 59.9 s9.8 s9.8 59.7 69.1 59.45 59.75 59.55 59.35 59.2 59.2 58.8 59.2 58.8 58.78 58.7 58.85 58.73 58.72 58.75 58.56 58.56 58.54 58.55 58.34 58.24 58. l9 58. l3 58.1 5 57.8 57.86 57.58 57.29 59.02 59.02 58.82 59.02 58.72 s8.82 58.92 58.42 58.42 58.32 58.32 58.22 67.62 57.97 58.27 58.07 s7.87 57.72 57.72 5'1.32 57.72 57.32 57.30 57.22 57.37 57.25 57.24 57.27 57.08 57.08 s7.06 57.07 56.86 56.76 s6.71 56.65 56.67 56.32 s6.38 56.10 s5.81 Water Levels and Data over Time White Mesa Mill - WeIl TW4-9 Measuring Length Water Land Point Of Elevation Surface Elevation Riser Date Of(WL) (LSD) (MP) &) Monitoring Total or Measured Depth to Water (blw.MP) Total Total Depth to DepthWater Of (blw.LSD) Well 5,636.1t 5,637.59 1.48 12t.33 5,580.66 5,580.75 5,581.04 5,581.12 5,581.15 5,581.5 1 5,581.70 5,581,61 5,581.04 5,581.12 5,581.15 5,58 l.s l 5,581.70 5,581.61 5,581.83 5,582.17 5,582.21 5,582.57 5,583.12 s,s82.77 5,583.21 5,582.94 5,582.71 5,583.67 5,583.82 5,584.01 5,583.88 5,583.81 5,584.28 5,584.41 5,584.68 5,584.49 5,584.51 5,583.59 5,582.96 5,582.98 5,582.57 5,582.25 5,582.09 5,582.48 5,583.69 s,583.89 3/2712001 4/30/2001 5/3U200t 6/2U2001 7/1012001 8/2012001 9lt9l200l t0l21200t 513U2001 6l2t/200t 7lt0/2001 8120/2001 9/191200r tol2/2001 rU8l200t tzl3l200t U3/2002 216/2002 3/2612002 4t9/2002 5/23/2002 61512002 7/8/2002 8123/2002 9/1il2002 t0/23/2002 tt/2212002 12t312002 t/9/2003 2/1212003 3/2612003 4/212003 sn/2003 6/9/2003 7/7/2003 8t4/2003 9nU2003 t01212003 t|7/2003 121312003 t/15/2004 - 2llo/2004 56.93 56.84 56.55 56.47 56.44 s6.08 55.89 55.98 56.55 56.47 56.44 56.08 55.89 55.98 55.76 55.42 55.38 55.02 54.47 54.82 54.38 54.65 s4.88 53.92 53.77 53.58 53.71 53.78 53.31 53.18 52.91 53. r0 53.08 54.00 54.63 s4.61 ss.02 55.34 55.50 55.1 I 53.90 53.70 55.45 55.36 55.07 54.99 54.96 54.60 54.41 54.s0 55.07 54.99 54.96 54.60 54.41 s4.50 54.28 53.94 s3.90 s3.54 52.99 53.34 52.90 53.17 s3.40 52.44 52.29 52.10 52.23 52.30 5l .83 51.70 51.43 51.62 51.60 52.52 53.15 s3.13 53.54 53.86 54.02 53.63 52.42 52.22 Water Levels and Data over Time White Mesa MiIl - Well TW4-9 Measuring LengthWater Land Point Of Total orMeasured Total Total Depth to Depth to Depth Elevation Surface Elevation Riser Date Of Water Water Of(WL) (LSD) MP) (L) Monitoring (btw.MP) (blw.LSD) Well 5,636.11 5,637 .59 1.48 121.33 5,584.30 5,584.59 5,584.87 5,584.96 5,585.50 5,584.81 5,584.40 5,583.91 5,583.39 5,583.54 5,583.34 5,583.66 5,583.87 5,584;14 5,585.26 5,585.06 5,584.67 5,584.75 5,584.51 5,585.74 5,584.74 5,584.26 5,584.21 5,584.67 5,584.06 5,585.33 5,585.42 5,587.01 5,585.44 3128/2004 41r2t2004 5lt3/2004 6lt8/2004 7128/2004 8/30/2004 9lt6/2004 to/1U2004 tUt612004 t2/22/2004 Ut8/2005 2/2812005 311512005 4126/2005 512412005 6/30t200s 71291200s 9/12/2005 121712005 31812006 6/13/2006 7/18t2006 tU7/2006 2/27/2007 s1212007 8/14/2007 r011012007 3/2612008 6/2412008 53.29 53.00 52.72 52.63 52.09 52.78 53.19 s3.68 s4.20 54.0s 54.25 53.93 53.72 52.85 52.33 52.53 s2.92 52.84 53.08 5 1.85 52.85 53.33 s3.38 52.92 53.53 52.26 52.17 50.58 52.t5 51.81 5t.52 51.24 51.15 50.61 51.30 51.71 52.20 52.72 52.57 52.77 s2.45 52.24 5t.37 50.85 51.05 51.44 5l.36 51.60 50.37 51.37 5 1.85 51.90 5t.44 52.05 50.78 50.69 49.10 50.67 I I Water Levels and Data over Time White Mesa Mill - Wett TW4-10 Measuring Length Water Land Point Of Elevation Surface Elevation Riser Date Of(WL) (LSD) (MP) (L) Monitoring Total or Measured Depth to Water (blw.MP) Total Total Depth to DepthWater Of (blw.LSD) Well 5.63r.99 5,634.24 2.25 121.33 I I t I I 5,576.75 5,576.92 5,577.43 5,577.22 5,577.80 5,577.47 5,577.55 5,578.10 5,578.24 5,578.49 5,578.43 5,578.43 5,578.66 5,578.66 5,578.'18 5,578.90 5,578.83 5,578.05 5,577.38 5,577.15 5,576.76 5,576.36 5,576.05 5,576.20 5,577.43 5,577.81 5,578.47 5,578.69 5,578.93 5,578.99 5,579.18 5,579.06 5,578.78 5,577.80 5,577.13 5,576.96 5,576.63 5,576.82 5,576.86 5,577.52 5,578.01 U3/2002 21612002 3126/2002 4/912002 5123/2002 61512002 718t2002 812312002 9nU2002 10t2312002 1U2212002 t2/3/2002 U912003 2/1212003 3126/2003 4/212003 5/U2003 6/912003 7t7/2003 814/2003 9/1U2003 r0t212003 tu712003 t21312003 yt5/2004 2lt0/2004 3128/2004 4l12/2004 sl1312004 6lt8/2004 7/28/2004 813012004 9/1612004 r0lrv2004 tt/16/2004 t2/22/2004 Ut8/2005 2128/2005 31t512005 4126/2005- 512412005 57.49 57.32 56.81 57.02 56.44 56.77 s6.69 56.14 56.00 5s.75 55.81 55.81 55.58 55.58 55.46 55.34 55.41 56.19 s6.86 57.09 57.48 57.88 58.19 58.04 56.81 56.43 5s.77 55.55 55.31 55.25 55.06 55.18 55.46 56.44 57.11 57.28 57.61 57.42 57.38 56.72 56.23 55.24 55.07 54.56 54.77 54.r9 54.52 54.44 s3.89 53.75 53.s0 53.56 53.56 s3.33 53.33 53.21 53.09 53.1 6 53.94 54.61 54.84 55.23 5s.63 s5.94 55.79 54.56 s4.1 8 53.52 53.30 53.06 53.00 52.81 52.93 53.21 54.r9 54.86 55.03 55.36 55.17 55.13 54.47 53.98 T I I I I I Water Levels and Data over Time White Mesa Mill - Well TW4-10 Water Elevation (wL) Measuring LengthLand Point Of Surface Elevation Riser Date Of(LSD) (MP)(L) Monitorins Total or Measured Depth to Water (blw.MP) Total Total Depth to Depth Water Of (blw.LSD) Well 5,631.99 5,634.24 ))\121.33 I I t I I I I I I I I T I I I 5,578.15 5,577.90 5,578.02 5,577.56 5,579.69 5,578.34 5,577.94 5,578.01 5578.43 5,577.84 5,578.74 5,579.04 5,580.69 5,579.87 6/3012005 71291200s 9lt2t200s 121712005 318/2006 611312006 7lt8/2006 tt/7t2006 2/27/2007 s/212007 8n4t2007 t0/r012007 3/26/2008 6124/2008 56.09 56.34 56.22 s6.68 54.55 55.90 56.30 56.23 55.81 56.40 55.50 55.20 53.55 54.37 53.84 54.09 53.97 54.43 52.30 53.65 54.05 53.98 53.s6 54.15 53.25 52.9s 51.30 52.12 I I t I Water Levels and Data over Time White Mesa Mitl - Well TW4-11 Water Land Measuring Length Point Of Total or Measured Total Total Depth to Depth to Depth Water Water OfElevation Surface Elevation Riser Date Of(WL) (LSD) (MP) (L) Monitoring (blw.MP) (blw.LSD) Welt 5,62t.92 5,623.62 t;10 121.33I I t I I T I I I I I t t I I 5,548.32 5,548.73 5,549.03 5,548.84 5,549.30 5,549.01 5,549.22 5,549.44 5,549.57 5,549.64 5,549.58 5,549.62 5,549.85 5,549.91 5,550.l5 5,550.01 5,550.31 5,550.44 5,550.33 5,550.35 5,550.44 5,550.47 5,550.60 5,550.60 5,550.94 5,551.00 5,550.34 5,551.54 5,551.89 5,551.94 5,552.49 5,552.74 5,553.01 5,553.1 I 5,553.19 5,553.53 5,553.31 5,553.84 5,554.04 5,554.23 5,553.87 U312002 2t612002 312612002 419/2002 512312002 6ts/2002 71812002 8/2312002 9ltt/2002 1012312002 1U2212002 t2/3/2002 u9/2003 2/12/2003 3/26/2003 4t212003 sl!2003 61912003 71712003 81412003 9trU2003 101212003 t!7/2003 t2/3/2003 U1512004 2n012004 3/28/2004 4/t212004 511312004 61t812004 7/28t2004 8t3012004 9n6t2004 tonu2004 tt/16/2004 t2/22/2004 t/1812005 2t2812005 3/1512005 412612005 - 512412005 75.30 74.89 74.59 74.78 74.32 74.61 74.40 74.18 74.0s 73.98 74.04 74.00 73.77 73.71 73.47 73.61 73.31 73.1 8 73.29 73.27 73.18 73.15 73.02 73,02 72.68 72.62 73.28 72.08 71.73 71.68 71.13 70.88 70.61 70.51 70.43 70.09 70.31 69.78 69.58 69.39 69.75 73.60 73.19 72.89 73.08 72.62 72.91 72.70 72.48 72.3s 72.28 72.34 72.30 72.07 72.01 7t.77 71.91 71.61 7t.48 7r.59 71.57 71.48 71.45 71.32 71.32 70.98 70.92 71.58 70.38 70.03 69.98 69.43 69.1 8 68.91 68.81 68.73 68.39 68.61 68.08 67.88 67.69 68.05 Water Levels and Data over Time White Mesa MiIl - WelI TW4-11 Measuring Length Water Land Point Of Elevation Surface Elevation Riser Date Of(WL) GSD) (MP) &) Monitorins Total or Measured Depth to Water (btw.MP) Total Depth to Water (blw.LSD) Total Depth of Wetl 5,621.92 s,623.62 1.70 121.33 5,554.46 5,554.57 5,553.86 5,555.30 5,556.20 5,556.48 5,556.37 5,556.94 5557.92 5,557.84 5,558.02 5,557.13 5,569.74 5,561.01 61301200s 69.16 7129/200s 69.05 9n212005 69.76 121712005 68.32 3/8t2006 67.42 6tr412006 67.14 7/18/2006 67.2s tt/1/2006 66.68 2/27/2007 65.7 51212007 65.78 8lt5/2007 6s.60 1011012007 66.49 3/26t2008 s3.88 6t24/2008 62.61 67.46 67.35 68.06 66.62 65.72 65.44 65.55 64.98 64 64.08 63.90 64.79 52.18 60.91 t I I I Water Levels and Data over Time White Mesa MiII - Well TW4-12 Water Land Elevation Surface (LSD) Measuring LengthPoint Of Elevation Riser Date Of(MP) &) Monitorins(wL) Total or Measured Depth to Water (btw.MP) Total Total Depth to DepthWater Of &lw.LSD) Well 5.622.38 5.624.03 1.65 121.33t I I T T I t I I I I t I t I 5,580.71 5,581.34 5,581.13 5,581.27 5,581.35 5,582.38 5,582.27 5,582.51 5,581.91 5,582.72 5,582.93 5,583.01 5,583.11 5,583.35 5,583.52 5,583.57 5,583.81 5,584.17 5,584.19 5,584.31 5,584.70 5,584.68 5,584.73 5,585.16 5,585. l8 5,585.29 5,585.65 5,585.71 5,586.15 5,585.94 5,586.36 5,586.75 5,587.00 5,587.15 5,587.38 5,587.38 5,587.74 5,588.23 5,588.72 5,588.14 5,588.l3 8/23t2002 9/1U2002 t012312002 ty22t2002 t21312002 U912003 2/12t2003 312612003 41212003 5/t/2003 619/2003 717/2003 8/412003 911U2003 r0t212003 tt/712003 121312003 t/1512004 2/1012004 3/28/2004 4/12/2004 slt3/2004 6t18/2004 7128/2004 8130/2004 9/1612004 t0ltt/2004 tt/t612004 t2/2212004 t/181200s 2/28/2005 311512005 4/26/2005 5/24/2005 6t30/200s 7t291200s 911212005 t2l7l200s 3/8/2006 6n312006 - 711812006 43.32 42.69 42.90 42.76 42.68 4t.65 41.7 6 41.52 42.r2 41.31 41.10 4t.02 40.92 40.68 40.51 40.46 40.22 39.86 39.84 39.72 39.33 39.3s 39.30 38.87 38.8s 38.74 38.38 38.32 37.88 38.09 37.67 37.28 37.03 36.88 36.6s 36.65 36.29 35.80 35.31 35.89 35.90 41.67 4t.04 4t.25 41.1I 41.03 40.00 40.1 1 39.87 40.47 39.66 39.45 39.37 39.27 39.03 38.86 38.81 38.57 38.21 38.19 38.07 37.68 37.70 37.65 37.22 37.20 37.09 36.73 36.67 36.23 36.44 36.02 3s.63 35.38 35.23 35.00 35.00 34.64 34.15 33.66 34.24 34.25 Water Levels and Data over Time White Mesa Milt - WeIl TW4-12 Water Land Elevation Surface(wL) (LSD) Measuring LengthPoint Of Elevation Riser Date Of(MP) (L) Monitorins Total or Measured Depth to Water (blw.MP) Total Total Depth to DepthWater Of (blw.LSD) Well 5,622.38 5,624.03 1.65 121.33 5,584.50 5588.65 5,588.33 5,586.29 5,586.48 5,587.56 5,587.39 tt/1/2006 212712007 5t2/2007 811412007 t0lt0/2007 312612008 612412008 39.53 35.38 35.70 37.74 37.55 36.47 36.64 37.88 5).tJ 34.05 36.09 35.90 34.82 34.99 Water Elevation (wL) Water Levels and Data over Time White Mesa Mill - WelI TW4-13 Total or Measuring Length Measured TotalLand Point Of Depth to Depth to Surface Elevation Riser Date Of Water Water(LSD) QVIP) (L) Monitoring (blw.MP) (blw.LSD) Total Depth of Well 5.618.09 5.6t9.94 t.8s t21.33 I I I t I 5,529.66 5,530.66 5,529.10 5,530.58 5,530.61 5,529.74 5,531.03 5,531.82 5,524.63 5,531.54 5,538.46 5,539.38 5,540.72 5,541.25 5,541.34 5,541.69 5,541.91 5,542.44 5,542.47 5,542.84 5,543.08 5,543.34 5,543.40 5,544.06 5,544.61 5,545.23 5,546.20 5,547.43 5,548.96 5,549.02 5,550.66 5,551.26 5,552.23 5,552.87 5,553.42 5,554.00 5,555.2t 5,558. l3 5,562.93 5,564.39 5,562.09 812312002 9lrt/2002 t0/2312002 tt/22t2002 121312002 y912003 2n2t2003 3126t2003 4/2t2003 5/t/2003 6/9/2003 7/7/2003 8/4/2003 9111/2003 t0t2/2003 1U7t2003 t2t3/2003 Ut5/2004 21t012004 312812004 4n212004 511312004 6/1812004 7/2812004 8/30t2004 9116t2004 t0/1U2004 tt/r612004 12t2212004 v18t2005 2/28t2005 311512005 4/26t2005 5t24t2005 6/301200s 7t29/2005 9t12/2005 t2l7/2005 3/8t2006 6t13/2006 - 7118/2006 90.28 89.28 90.84 89.36 89.33 90.20 88.91 88. l2 9s.31 88.40 81.48 80.56 79.22 78.69 78.60 78.25 78.03 77.50 77.47 77.t0 76.86 76.60 76.54 75.88 75.33 74.71 73.74 72.51 70.98 70.92 69.28 68.68 67.71 67.07 66.s2 65.94 64.73 61.81 57.01 55.55 57.8s 88.43 87.43 88.99 87.51 87.48 88.35 87.06 86.27 93.46 86.55 79.63 78.71 77.37 76.84 76.75 76.40 76.18 75.65 75.62 7 5.25 7 5.01 74.75 74.69 74.03 73.48 72,86 71.89 70.66 69.13 69.07 67.43 66.83 6s.86 65.22 64.67 64.09 62.88 59.96 5s.1 6 53.70 56.00 I t I I Water Levels and Data over Time White Mesa Mill - Well TW4-13 Total or Measuring Length Measured Total TotalWater Land Point Of Depth to Depth to Depth Elevation Surface Elevation Riser Date Of Water Water Of(WL) (LSD) (MP) (L) Monitorins (blw.MP) (blw.LSD) Well 5.618.09 5.619.94 1.85 121.33I :ffi;; 5,570.63I i,izi,ii I s,s70.00 I I I I t I t I I I I I 1U712006 54.45 52.60 2127t2007 48.86 47.0t 51212007 49.31 47.46 8/1412007 54.7 52.85 1.0/t012007 54.11 s2.26 3t26t2008 s0.65 48.80 6124/2008 49.94 48.09 Water Elevatio n (WL) (LSD) Len gth of Rise r (L) Land Surfac e Water Levels and Data over Time White Mesa Milt - Wetl TW4-14 Measuring Point Elevation (MP) Total or Measure d Depth Totalto Depth to Total Date Of Water Water Depth Monitorin (blw.MP (blw.LS Of s ) D) Well 5,610.9 2 5,612.77 1.85 t21.3 J 5,518.90 5,519.28 5,519.95 5,520.32 5,520.42 5,520.70 5,520.89 5,521.12 5,521.12 5,521.24 5,521.34 5,521.36 5,52t.35 5,52t.30 5,521.35 5,521.36 5,521.16 5,521.29 5,521.36 5,521.46 5,521.54 5,521.59 5,521.69 5,521.71 5,521.76 5,521.77 5,521.79 5,521.80 5,521.82 5,521.82 5,521.86 5,521.85 5,521.91 5,521.93 5,521.94 5,521.84 5,521.99 8/2312002 9/1u2002 10t2312002 1u2212002 tzl3/2002 11912003 2/12/2003 3/2612003 41212003 5/t/2003 6t9t2003 7t712003 8t4t2003 9ltt/2003 t0l2/2003 ty7/2003 t2t3/2003 Ut5/2004 2/1012004 3t2812004 411212004 s/t312004 6/1812004 7/2812004 8/30/2004 9n6/2004 ro/tU2004 tlt6/2004 12122/2004 U1812005 212812005 311512005 412612005 s12412005 6/3012005 7t2912005 911212005 93.87 93.49 92.82 92.45 92.3s 92.07 91.88 91.65 9l.65 91.53 91.43 91.41 91.42 91.47 9r.42 9t.41 91.61 91.48 91.4t 91.31 91.23 91.18 91.08 91.06 91.01 91.00 90.98 90.97 90.95 90.95 90.91 90.92 90.86 90.84 90.83 90.93 90.78 92.02 91.64 90.97 90.60 90.s0 90.22 90.03 89.80 89.80 89.68 89.58 89.56 89.57 89.62 89.57 89.56 89.76 89.63 89.s6 89.46 89.38 89.33 89.23 89.21 89.16 89.15 89.1 3 89,12 89. l0 89.10 89.06 89.07 89.01 88.99 88.98 89.08 88.93 I I T 5,522.04 5,522.05 5,522.27 5,521.92 5,520.17 5522.24 5,522.47 5,520.74 5,518.13 5,522.85 5,522.91 12t7t2005 3t812006 6t1312006 7lt8/2006 t1712006 2t2712007 st212007 8/14/2007 t0n0/2007 312612008 6t2412008 90.73 90.72 90.50 90.85 92.60 90.53 90.30 92.03 94.64 89.92 89.86 88.88 88.87 88.6s 89.00 90.75 88.68 88.45 90.1 8 92.79 88.07 88.01I I t I I I T I I I Water Levels and Data over Time White Mesa MiU - Weil TW4-15 (MW-26) Water Elevation(WL) (LSD) Measuring LengthPoint Of Elevation Riser Date Of CIIP) (L) Monitoring Total Depth of Well Land Surface Total or Measured Depth to Water (blw.MP) Total Depth to Water (blw.LSD) 5,624.15 5,625.45 1.30 121.33 I t I t t 5,574.75 5,574.97 5,575.10 5,574.99 5,575.28 5,575.41 5,575.43 5,575.63 5,575.91 5,575.81 5,572.36 5,570.70 5,570.29 5,560.94 5,560.63 5,560.56 5,564.77 5,570.89 5,572.55 5,574.25 5,574.77 5,575.53 5,575.59 5,576.82 5,527.47 5,553.97 5,562.33 5,550.00 5,560.02 5,546.11 5,556.7 | 5,554.95 5,555.48 5,551.09 5,552.85 5,554.30 5,554.87 5,550.88 5558.77 5,548.54 5,551.33 8t23t2002 91112002 to/2312002 tt/2212002 121312002 U912003 2/1212003 3126t2003 412/2003 51U2003 61912003 71712003 8t412003 911,/2003 t01212003 1U712003 t2t3/2003 y15/2004 211012004 312812004 41t212004 511312004 611812004 712812004 9lt6/2004 rt/16/2004 12122/2004 u1812005 412612005 512412005 6/30t200s 712912005 911212005 t2/712005 31812006 6/1312006 7/18t2006 tt/712006 2/2712007 512/2007 - 1011012007 50.70 50.48 50.35 50.46 50.17 50.04 50.02 49.82 49.54 49.64 53.09 54.75 55.16 64.51 64.82 64.89 60.68 54.56 52.90 51.20 50.68 49.92 49.86 48.63 97.98 71.48 63.r2 75.45 65.43 79.34 68.74 70.50 69.97 74.36 72.60 71.t5 70.s8 74.57 66.68 76.91 74.t2 49.40 49.1 8 49.05 49.t6 48.87 48.74 48.72 48.s2 48.24 48.34 51.79 53.45 53.86 63.21 63.s2 63.59 59.38 53.26 51.60 49.90 49.38 48.62 48.56 47.33 96.68 70.1 8 61.82 74.15 64.13 78.04 67.44 69.20 68.67 73.06 71.30 69.85 69.28 73.27 65.38 75.61 72.82 I I I I I I I Water Levels and Data over Time White Mesa Mill - Wetl TW4-15 (MW-26) Measuring Length Water Land Point Of Total orMeasured Total Total Depth to Depth to Depth Elevation Surface Elevation Riser Date Of Water Water Of(wL) (LSD) MP) (L) Monitoring (blw.MP) (blw.LSD) Well 5,624.ts 5,625.45 1.30 t21.33 5,545.56 5,545.56 312612008 612512008 79.89 79.89 78.59 78.59 I I I I I I I T Water Levels and Data over Time White Mesa Mill - Well TW4-16 Water Land Measuring Length Point Of Total or Measured Total Total Depth to Depth to DepthWater Water OfElevation Surface Elevation Riser Date Of(WL) (LSD) MP) (L) Monitoring (blw.MP) (blw.LSD) Well 5,622.19 5,624.02 1.83 121.33I I I I I I t I I I t t I I I 5,562.91 5,s63.45 5,563.75 5,563.68 5,563.68 5,564.16 5,564.25 5,564.53 5,564.46 5,564.79 5,564.31 5,563.29 5,562.76 5,56t.73 5,561.04 5,560.39 5,559.79 5,567.02 5,561.75 5,562.98 5,563.29 5,564.03 5,564.09 5,565.08 5,564.56 5,563.55 5,561.79 5,560.38 5,559.71 5,559.14 5,558.65 5,558.54 5,558.22 5,558.54 5,559.24 5,559.38 5,559.23 5,557.67 5,557.92 5,558.47 5,558.42 8/2312002 9/1U2002 10123t2002 1U2212002 121312002 U912003 2n2t2003 312612003 4/2t2003 51U2003 6/9/2003 7t712003 81412003 9/1U2003 t0/212003 tt/712003 t2/3t2003 Uts12004 2/10/2004 3/28/2004 411212004 5n312004 6lt8/2004 712812004 8/30/2004 9/16/2004 t0ltU2004 tUt6l2004 t2/2212004 Ut8l200s 212812005 3lt5/2005 4t261200s sl24l200s 6/30/2005 7/29/200s 9n212005 r2t7t2005 3/812006 611312006 - 7/1812006 6l.l I 60.57 60.27 60.34 60.34 59.86 59.77 59.49 59.56 59.23 59.71 60.73 61.26 62.29 62.98 63.63 64.23 63.00 62.27 6t.04 60.73 59.99 s9.93 58.94 s9.46 60.47 62.23 63.64 64.3t 64.88 6s.37 65.48 65.80 65.48 64.78 64.64 64.79 66.35 66.10 65.55 65.60 59.28 s8.74 58.44 58.51 58.51 s8.03 57.94 57.66 57.73 57.40 57.88 58.90 59.43 60.46 61.15 61.80 62.40 61.17 60.44 s9.21 58.90 58. l6 58. l0 57.t| 57.63 58.64 60.40 61.81 62.48 63.05 63.54 63.65 63.97 63.65 62.95 62.81 62.96 64.s2 64.27 63.72 63.77 Water Levels and Data over Time White Mesa Mitl - Well TW4-16 Measuring LengthWater Land Point Of Total or Measured Total Depth to Depth to Total Depthof Well Elevation Surface Elevation Riser Date Of Water Water(WL) (LSD) (MP) (L) Monitorins (btw.MP) (btw.LSD) 5,622.t9 5,624.02 1.83 121.33 5,558.09 s5s7.34 5,547.11 5,558.52 5,559.02 5,561.04 5,560.06 1u712006 2/271200',1 s1212007 811412007 t0/10/2007 3t26t2008 6/2412008 65.93 66.68 76.91 65.5 65.00 62.98 63.96 64.10 64.85 75.08 63.67 63.t7 61.15 62.t3 I I I I Water Levels and Data over Time White Mesa Mill - Well TW4-17 (MW-32) Measuring Length Water Land Point Of Elevation Surface Elevation Riser Date Of(WL) (LSD) (MP) (L) Monitorins (blw.MP) (blw.LSD) Well Total or Measured Total Depth to Depth toWater Water Total Depth of 5,623.4t 5,625.24 1.83 t2t.33I I I I I I t I I I I I T I I 5,542.17 5,542.39 5,542.61 5,542.49 5,542.82 5,543.03 5,543.04 5,543.41 5,543.69 5,543.77 5,5M.01 5,544.05 5,543.99 5,544.17 5,544.06 5,544.03 5,543.94 5,543.98 5,543.85 5,544.05 5,544.33 5,544.55 5,544.59 5,545.08 5,545.26 5,545.48 5,545.61 5,545.46 5,545.66 5,545.33 5,545.51 5,545.57 5,545.46 5,545.45 5,545.33 5,545.16 5,545.54 5,545.77 5,546.09 5,545.94 5,545.94 8/2312002 911,/2002 1012312002 tu22/2002 t2/3t2002 y9/2003 211212003 3/26/2003 4/2/2003 5/t/2003 61912003 71712003 8/412003 9ltt/2003 r0l2/2003 tU712003 tzl3/2003 ,/t5/2004 2n012004 3t28/2004 4lt2/2004 slt3/2004 6n812004 712812004 8t30/2004 9lt6/2004 t0/tU2004 tUt612004 t2t2212004 Ut8/200s 2/28/2005 3n5/2005 4126/2005 sl24/200s 6130/2005 7/29/200s 9112t2005 t2l7/2005 3/812006 6lt3/2006 - 7118/2006 83.07 82.85 82.63 82.75 82.42 82.2t 82.20 81.83 81.55 8t.47 81.23 8 1.19 81.25 81.07 8 1.18 81.21 81.30 81.26 81.39 81.19 80.91 80.69 80.65 80.16 79.98 79.76 79.63 79.78 79.58 79.91 79.73 79.67 79.78 79.79 79.9r 80.08 79.70 79.47 79.t5 79.30 79.30 81.24 8l.02 80.80 80.92 80.59 80.38 80.37 80.00 79;t2 79.64 79.40 79.36 79.42 79.24 79.35 79.38 79.47 79.43 79.56 79.36 79.08 78.86 78.82 78.33 78.15 77.93 77.80 77.95 77.7s 78.08 77.90 77.84 77.95 77.96 78.08 78.25 77.87 77.64 77.32 77.47 77.47 5,546.24 5546.81 5546.56 5546.81 s546.96 5547.9 s548.08 tU712006 212712007 sl2/2007 8n5/2007 101r012007 3t2612008 612512008 79.00 78.43 78.68 78.43 78.28 77.34 77.16 77.17 76.6 76.85 76.6 76.45 75.51 75.33 I I I t Water Levels and Data over Time White Mesa Mill - WelI TW4-18 Water Measuring Length Land Point Of Total or Measured Total Total Depth to Depth to DepthWater Water OfElevation Surface Elevation Riser Date Of (WL) (LSD) MP) (L) Monitoring (blw.MP) (blw.LSD) Welt s,639.13 5"641.28 2.t5 t21.33t I t I I T I I I I I I I I I 5,585.13 5,585.41 5,585.47 5,585.40 5,585.68 5,585.90 5,590.79 5,586. l8 5,586.36 5,586.24 5,584.93 5,584.46 5,584.55 5,584.01 5,583.67 5,583.s0 5,584.08 5,585.45 5,585.66 5,586.13 5,586.39 5,586.66 5,586.77 5,587.35 5,586.34 5,585.85 5,585.22 5,584.70 5,584.81 5,584.68 5,585.02 5,585.2s 5,586.31 5,586.97 5,586.58 5,586.10 5,586.05 5,s8s.86 5,587.13 5,585.93 5,585.40 8t2312002 9nU2002 t0123/2002 1U2212002 121312002 ,/912003 2n212003 3t2612003 41212003 snl2003 61912003 7t712003 8t412003 91tU2003 101212003 ty7/2003 r2l3/2003 Ur512004 211012004 312812004 411212004 5lt3/2004 6n8/2004 7t2812004 8130/2004 91t612004 t0ltt/2004 tUt6/2004 r212212004 y1812005 2t28/2005 3lt5/2005 4t2612005 512412005 6/3012005 7/2912005 9n212005 r2l7l200s 3t8t2006 6t1312006- 7/1812006 56.15 55.87 55.81 55.88 55.60 s5.38 50.49 55.1 0 54.92 55.04 56.35 56.82 s6.73 57.27 57.6t 57.78 57.20 55.83 55.62 5s.15 54.89 54.62 54.51 53.93 54.94 5s.43 56.06 56.s8 56.47 56.60 56.26 56.03 54.97 54.31 54.70 5s.1 8 55.23 55.42 54.15 55.35 55.88 54.00 53.72 s3.66 53.73 53.45 53.23 48.34 52.95 52.77 52.89 54.20 54.67 54.58 55.12 55.46 55.63 55.05 s3.68 53.47 s3.00 52.74 52.47 52.36 51.78 52.79 53.28 53.91 54.43 54.32 54.45 54.11 53.88 52.82 52.t6 52.s5 53.03 53.08 53.27 52.00 53.20 53.73 Water Levels and Data over Time White Mesa MiU - Well TW4-18 Total or Measuring Length Measured Total Total Water Land Point Of Depth to Depth to Depth Elevation Surface Elevation Riser Date Of Water Water Of(WL) (LSD) (MP) (L) Monitorins Olw.MP) (btw.LSD) Well 5,639.13 5,641.28 2.15 r2t.33 5,585.38 s585.83 5585.1s 5586.47 1U712006 212712007 51212007 612412008 5s.90 55.45 56.13 54.81 53.75 s3.30 s3.98 52.66 t I I I Water Levels and Data over Time White Mesa Mitl - Welt TW4-19 Water Land Measuring LengthPoint Of Elevation Surface Elevation Riser Date Of(WL) [SD) (MP) (L) Monitoring (blw.MP) (blw.LSD) Well 5.629.53 5,631.39 1.86 121.33 Total or Measured Total Total Depth to Depth to DePth Water Water Of I I I I I I I I I T I I t I I 5,58 1.88 5,582.14 5,582.06 5,582.07 5,582.l6 5,582.28 5,582.29 5,582.74 5,582.82 5,548.47 5,564.76 5,562.53 5,564.10 5,566.01 5,555.16 5,549.80 5,546.04 5,547.34 5,548.77 5,551. l8 5,556.81 5,562.63 5,573.42 5,552.94 5,554.00 5,555.98 5,552.00 5,545.74 5,544.06 5,548.81 5543.59 5544.55 5558.97 5559.73 5569.26 5535.47 812312002 9/tU2002 t012312002 tU2212002 t21312002 ll9/2003 2/1212003 3126/2003 41212003 5n/2003 619/2003 7/712003 81412003 8/30t2004 9/1612004 r0lrU2004 tUt612004 1212212004 t/r81200s 2128t200s 311512005 4126/200s 5124/2005 7/291200s 9t1212005 121712005 3/812006 6lt3/2006 711812006 1U712006 2/2712007 s1212007 Slts/2007 r01101200'7 312612008 612512008 49.51 49.25 49.33 49.32 49.23 49.11 49.10 48.65 48.57 82.92 66.63 68.86 67.29 65.38 76.23 81.59 85.35 84.05 82.62 80.21 74.58 68.76 57.97 78.45 77.39 75.4r 79.39 85.65 87.33 82.58 87.8 86.84 72.42 71.66 62.13 95.92 47.65 47.39 47.47 47.46 47.37 47.25 47.24 46.79 46.71 81.06 64.77 67.00 65.43 63.52 74.37 79.73 83.49 82.19 80.76 78.35 72.72 66.90 56.11 76.59 75.53 73.55 77.53 83.79 85.47 80.72 85.94 84.98 70.56 69.8 60.27 94.06 Water Levels and Data over Time White Mesa Mill - Well TW4-20 Measuring LengthWater Land Point Of Elevation Surface Elevation Riser Date Of(WL) (LSD) (MP) (L) Monitorins Total or Measured Depth to Water (blw.MP) Total Depth to Water (blw.LSD) Total Depth of Well 5,628.s2 s,629.s3 1.01 106.0 I I T I T I t I I I I I I I I I I t I 5,565.70 5,546.53 5,s40.29 5,541.17 5,540.33 5,530.43 5,569.13 5,547.95 5,550.58 5,563.60 5,555.85 5,569. l0 5,560.00 5,629.53 7/29t2005 8/30/2005 9/12/2005 t2/7/2005 31812006 61t312006 7/18/2006 tt/1/2006 2/2712007 5/212007 8lt4/2007 L0/10t2007 3/2612008 6125/2008 63.83 83.00 89.24 88.36 89.20 99. l0 60.40 8 1.58 80.28 78.95 65.93 73.68 60.43 69.53 Water Levels and Data over Time White Mesa Mill - Well TW4-21 Measuring LengthWater Land Point Of Total or Measured Depth to Total Total Depth to DepthWater Of (blw.LSD) Well Elevation Surface Elevation Riser Date Of Water(WL) (LSD) (MP) (L) Monitoring (blw.MP) 5.638.20 s.639.35 1.15 120.92 5,582.98 5,583.43 5,581.87 5,580.50 5,583.64 5,580.55 5,578.95 5,578.47 5,579.53 5,578.07 5,583.41 5,583.45 5,586.47 5,579.16 712912005 56.37 81301200s 5s.92 9lt2l200s 57.48 t2l7l200s 58.8s 31812006 55.71 611312006 58.80 7tr8t2006 60.40 rU7/2006 60.88 2t2712007 s9.82 51212007 61.28 81t512007 55.94 t0/t012007 55.9 3t2612008 52.88 6/24/2008 60.19 Water Levels and Data over Time White Mesa Mitl - WelI TW4-22 Measuring LengthWater Land Point Of Elevation Surface Elevation Riser Date Of(WL) (LSD) (MP) (L) Monitoring Total or Measured Depth to Water (blw.MP) Total Total Depth to DepthWater Of (blw.LSD) Well 5.627.83 5.629.00 l.l7 n3.5 5,571.89 5,572.20 5,572.08 5,571.61 5,571.85 5,57t.62 5,571.42 5,571.02 s571.24 5,570.75 5,571.82 5,571.99 5,573.05 5,573.04 7t29/2005 8130/200s 9lt2l200s t2l7/2005 31812006 61t312006 7/18/2006 ru7/2006 212712007 6/2912007 8t1412007 to/r012007 3t26/2008 612412008 57.1 1 56.80 s6.92 57.39 57.15 57.38 57.58 57.98 57.76 58.25 57.18 57.01 55.95 55.96 %-% ar; a": ar; * "r-: "%n2 "OrO^ n'uOY'o^ e/a Y-o-, * ""c "% o2'Qo^ o t-o 'Q+-^ ?u'qe^ ^7dto.o^ -t 7g to'o-, ,2'rr*^ ,'6.r.O^,i ,,; ,r.: "% %.:: ,aO ooooooooooooooooooooool-(orr)stc.,c\ (rFn) "u(o.^t yl * '".:e/), "% *t.: ", ttC Yto-, * n t'9 Y@^ e/s "% * "r-:r/s, l1l'Qo-' * %;: -t "?-qo^ * ^ "tg,O.O_ r/-\ -OzO^ *, t/o 'o.o^ e/s "% * ,".: l,/-S Qrr^, ".;:,,<g ooooooooooooooooooooooF-(otO$(OCrl (v6n) ?ry w :"d ';t, ";& z{" Y3oo. v 7"*, ?e r_e, ".3-o,-o ?;_q */o- v ';"*, ?;& *;y "tk %+ooooooooooooooooooooooN(Olrj-f(f)Nr ccc|=c,- B'p <ag fto fs iooc,- 8xo- i5 *r.-do 6-*3o &r*Eb t-?f- * r.-fc|a e\ a\ f r.- -6 n-flb i r.-oo- 8Eo- is cf)ooN oN -cot-(o ooC'a =E Co oo oE o -C C(U .C aao Coo -oa(E :E cf)I$ =F ooooorf,(r)NOciocioc; oro C; (l6n) oo =G E o o o o c)It! =F 7;z r'O, <o -? .":'" 7o^(a- o' *{6, 9o -? 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"% "% % % %"", *ron %ru,ooooooooool.c)orr)oloolr)s(9(9NN (vEn) @o 1r) C\t (oo @o(oN cf)o @oIo Joo Iro5 t'-0)of t\o|.\N(0o I-oflsoC\ (oo @o-r (oooNt-o @ost (oo (ooIL(u Io) |r)oIC)ooI Io)ie (f) I €,oiolr)ol oo G E o oLo o NNt$ =F oo@ (rFn) I I I I I I I l, I I I I I t I t I t