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At COGEMA
At COGEMA February 25, 2005 LICENSE SUA- 1341 DOCKET NO. 40-8502 U. S. Nuclear Regulatory Commission Mr. Gary Janosko Chief Fuel Cycle Facilities Branch, Mail Stop T-8A33 Two White Flint North 11 545 Rockville Pike Rockville, MD 20852 RE: Submittal of the 2004 Annual Effluent and Monitoring Report Dear Mr. Janosko: Pursuant to License Sections 12.1 And 12.6, a copy is enclosed of COGEMA Mining Inc.'s 2004 Annual Effluent and Monitoring Report. Note that the report also serves as the Semi-Annual Monitoring Report to the Wyoming Department of Environmental Quality for the second half of 2004. Please contact me if you have any questions regarding this report. Sincerely, Tom Nicholson Environmental Specialist/RSO cc: John Lusher - NRC, Headquarters Jack Whitten - NRC, Region IV Don McKenzie - WDEQ, Sheridan WY. Donna Wichers - COGEMA J:\JMV\WP\2004REPT\DEQ\04_EFFLU\COV LTR\NRCCOV.WPD COGEMA Mining, Inc. 935 Pendell Blvd.. P.O. Box 730, Mills, WY 82644 - Tel. : (307) 234-5019 - Fax: (307) 473-7306 COG EMA COGEMA Mining, Inc. IRIGARAY and CHRISTENSEN RANCH PROJECTS 2004 ANNUAL EFFLUENT AND MONITORING REPORT January 1 through December 31, 2004 NRC Source Material License No. SUA-1341 Docket No. 40-8502 And SEMI-ANNUAL MONITORING REPORT July 1 through December 31, 2004 WDEQ Permit To Mine No. 478 February 2005 Cogema Mining Inc. Irigaray and Christensen Ranch Projects 2004 ANNUAL EFFLUENT AND MONITORING REPORT (NRC) and SEMI-ANNUAL MONITORING REPORT (WDEQ) 1.0 INTRODUCTION In accordance with Sections 12.1 and 12.6 of the Nuclear Regulatory Commission (NRC) Source License No. SUA-1341, COGEMA Mining Inc. (COGEMA) hereby submits the 2004 Annual Effluent and Monitoring Report. This document summarizes the required operational and environmental monitoring conducted at the Irigaray (IR) and Christensen Ranch (CR) projects from January 1 through December 31, 2004. The monitoring data included in this document is also required by Section 5.1 0.1.1 of the 1996 License Renewal Application, in a Semi-Annual Monitoring Report to the Wyoming Department of Environmental Quality (WDEQ). The semi-annual report period is from July 1through December 31, 2004, however, the entire year's data is provided for annual report purposes. 2.0 OPERATIONAL SUMMARIES 2.11 Irigaraylroject At the IR facilities groundwater restoration activities were concluded in November 2001 and groundwater stabilization monitoring was completed in August 2002. A groundwater restoration report was submitted to the WDEQ on July 26, 2004, to request restoration approval of all nine Production Units (PU) at the IR project. Waste pond dc-watering and decommissioning began in August 2003 and are on-going. Wellfield surface facilities were also in active decommissioning phases of operation during the 2004 year. To date, surface wellfield piping and electrical lines have been removed in PU 1 - 5 and stockpiled for inspection and disposal. Forty four (44) wells that were known to have failed mechanical integrity testing (MIT) were plugged and abandoned by the approvcdcWDEQ method. One hundred twventy two (122) submersible pumps from wells that will not be required for monitoring purposes were pulled and stockpiled. The wellfield restoration building (see map Appendix 4) has had all internal equipment (with the exception of four resin storage tanks) and wall partitions removed and stockpiled or disposed of. The wellfields and plant area were sprayed for weed control during April and early-May 2004, a formulated mixture of Amine, Tordon and Marker Dye (recommended by Johnson/Campbell County Weed & Pest Control) was utilized, approximately 7.5 gals of product was applied to 15.2 acres of surface. The primary plants targeted by this effort included: Canadian Thistle, Scotch Thistle, Cocklebur, Milk Vetch and Tamarack bush. The 517 site, was fully restored in the last quarter of 2003. The pond area and surface facility site were fenced and seeded. We are currently monitoring the area for proper establishment of native vegetation. Some restoration work remains on the USMT site adjoining 517, and all perimeter monitor wells (7 total) still remain in service and are sampled annually. When the IR site is not being worked on, the facilities are secured with door locks and locking gates at all outer perimeter access points. Security checks are conducted daily by the CR staff. A General Location Map showing the layout of the IR project site is provided in Appendix 4 of this report. 2.2 ChristensenRanch-Project Mining activities ceased at CR in June 2000. Only groundwater restoration, project decommissioning and related activities have since been conducted. A total of 8,173.4 pounds of uranium as U3 0, were captured from groundwater restoration operations at the CR project during 2004. This is well below the annual limit of 50,000 pounds as per Section 10.5 of the NRC license. No uranium wvas dried or shipped during 2004. A final uranium drying campaign and shipments are anticipated for early 2005. As with IR, weed control at CR was completed by our maintenance crews during May and earlyJune 2004. Approximately 38.9 acres of wellfield and plant surface were sprayed with the mixture recommended by the Johnson/Campbell County Weed & Pest Control Office; 19.4 gals. of product was utilized in this activity. A General Location Map showing the layout of the CR project site is provided in Appendix 4 of this report. 2.2.1 Groundwater Restoration Five reverse osmosis (RO) units continued to process 1,000 gallons per minute (gpm) of wellfield recovery water. A sixth RO sas used to further concentrate the brine water from the five primary RO units. The final brine water was disposed of by means of two Underground Injection Control (UIC) Class I injection wells. Groundwater sweep (GWS) of all mine units was completed in February 2003, and the RO phase of restoration continued through the end of this reporting period. Beginning in November 2002, a chemical reductant addition system utilizing hydrogen sulfide gas (H2 S) was installed at CR and continued in use through September 2004. Restoration status summaries for each Mine Unit (MU) are given below. 2.22 MineiUnit-2 The RO filtration/permeate injection phase (RO Phase) was suspended in March 2002 with a cumulative total of 10.8 pore volume displacements (pvd) processed. Mine Unit 2 was reactivated for further RO permeate and reductant addition in April 2003. The reductant phase was completed in all Modules of the unit in mid March 2004. The restoration stabilization phase wvas begun in April 2004, with the final round of stabilization phase sampling scheduled for January 2005. 223 mine-uniL3 The RO phase began in February 1999 and was suspended in August 2002 with a cumulative total of 15.5 pvd processed. MU 3 was reactivated in February 2004 for H2 S injection to enhance selenium and uranium reduction. This was completed in all modules of MU 3 on September 30, 2004 and the unit entered its restoration stabilization phase on October 1, 2004. The final round of stabilization phase sampling in this unit is planned for mid-July 2005. 2.2.4 Mine-UnitA The RO phase began in June 2001 and ended in November 2002 with a cumulative total of 9.65 pvd processed. Module 42 was treated with reductant from November 2002 to March 2003. The unit entered its restoration stabilization phase in early April 2004 and will complete this phase in midJanuary 2005. 225 Mlinelnit5 The RO phase began in April 2002 and was completed in November 2003 with a cumulative total of 8.67 pvd processed. The unit stabilization phase of restoration was completed in August 2004. Currently the unit is in the Post-Stabilization Phase of restoration. 2.2.6 Mine-Unit.6 The GWS phase began in September 2000 and was completed in February 2003 with a total of 0.92 pvd processed. All modules of MU 6 are currently in the RO phase of restoration, with completion scheduled for late-February/early-March 2005. Through the end of 2004 a cumulative total of 3.67 pvd's have been processed in the RO phase. It is possible that an additional phase of H2S injection to enhance selenium and uranium reduction may be required here in early 2005. 3.0 OPERATIONAL MONITORING 311 G£romdwater-Volumeslnjectedand-Recovcred Groundwater restoration volumes injected and recovered from the wellfields at CR are given in Table I of Appendix 1. The average restoration flow rates arc also given in this table. The gallons were recorded by totalizing flow meters on the recovery and injection trunk lines. 32 InjectionManifld Pressunrs Injection manifold pressures at the CR project are limited to 140 psi during wellfield operations and 168 psi during maintenance tasks, as per License Section 11.1. Section 11.1 requires that the injection manifold pressures be recorded daily. COGEMA uses continuous chart recorders on the injection manifolds, which record pressure 24 hours per day. The results are tabulated in graphical format and retained as permanent record at the CR offices. During 2004 no incidents of pressure exceedance occurred at any of the CR wellfields. 3.3 Waste-Water-Control 3-1 Evaporation.Ponds Weekly inspections were conducted on all active evaporation ponds at the IR site, and the four evaporation ponds and-one permeate pond at CR. During 2004, no freeboard limits were exceeded. On April 28, 2004 pond leaks were detected in CR Ponds 3 & 4 during the routine weekly inspections. The pond water levels were lowered and it was determined that collapsing blocks of ice from winter freeze-ups had created numerous small punctures in both ponds. These punctures were repaired and the leak detection systems (LDS) were monitored until correction of the situation was established. The incident was detailed in a report to the WDEQ and NRC on August 19, 2004. During the routine weekly pond inspection of CR Pond 4 on November 10, 2004 the northwest LDS tube was found to have seven (7) vertical inches of water. The pond water level was lowered and subsequently thirteen (13) small punctures were discovered along the wvest bank of Pond 4. The cause of these punctures was believed to be the emplacement of salt/mineral solids from our IR waste pond de-watering activities. These punctures were repaired and the pond was returned to service on December 10, 2004. The incident was detailed in a report to the WDEQ and NRC on December 3, 2004. Sampling of all operative ponds is conducted on a quarterly basis and the sample analysis data are provided in Table 2 of Appendix 1. In June 2003 pond de-watering of IR ponds A, C, E, RA and RB was started as part of the IR decommissioning operation. Pond Sludge removal has been on-going since early August with contaminated materials sent to our Pathfinder - Shirley Basin disposal site and salts/minerals being shipped to CR for dissolution and disposal in the CR Class I injection vells. Pond liner material has been completely removed from IR ponds A, C, E, and RA and also shipped to the Pathfinder disposal site. These ponds are currently in the process of being grided for radiometric surveying and sample collection. IR ponds B, D and RB remain intact for utilization during decommissioning and restoration phases of the project site. On July 30, 2004 during the routine weekly pond inspections, a dead juvenile Grebe was found in IR Pond B. The incident was reported to the WDEQ and U.S. Fish & Wildlife Service on August 2, 2004. Pond B water pH and conductivity were subsequently checked as a potential cause of the accident, but proved to be within acceptable limits. No agency investigation was initiated and the bird carcass was disposed of on November 15, 2004. 3-3.2 DisposalAV-ells Two Class I injection wells are located at CR and are licensed under the WDEQ Underground Injection Control Permit Number UIC 00-340. During 2004 a total of 31,852,454 gallons of restoration brine were injected into disposal wvell Cogema DW No. 1, and 35,751,724 gallons were injected into disposal well Christensen No. 18-3. Quarterly reports were submitted to the WDEQ containing required water quality, quantity and well pressure data. No limits were exceeded at either well during 2004. On June 24, 2004 Mr. R. Lucht and Mr. J. Passehl WDEQ - Water Quality Division, conducted a wellfield inspection of the CR facility. No problem areas or violations were noted during the inspection. As required by UIC Permit 00-340 section 1, paragraph 4, "COGEAM shall shut one of the itells covered by this permit in annuallyfor a period of time long enough to observe a validpressure falloff curves Each year, a well which was not tested in the previousyear shall be tested, zntil all wells are tested in sequence. " To comply with this regulation, COGEMA Christensen No. 18-3 was tested on August 31 and September 1, 2004. The required MIT and analysis of the falloff data was performed by Petrotek Engineering of Littleton, Colorado. The results indicate that Christensen 18-3 "continues to be suitablefor use as a Class I injector". 3.4 WellntegritylTesting Well integrity testing (MIT) results are reported to the WDEQ by phone quarterly and in a written report semi-annually. Four hundred fifty eight (458) wells were tested during the first two quarters of 2004 (January - June) and were tabulated in Table 3 of the WDEQ Annual Report, August 18, 2004. These wells, and an additional twenty nine (29) tested during the second half of the year are included in Table 3 - Appendix I of this report. 35 Chemicallnventory On February 23, 2004 the annual TIER II Hazardous Chemical Inventory was reported to Ms. Bobbi Tenborg, WDEQ SARA Title II Hazmat Program Manager. The only hazardous material in reportable quantity at either CR or IR was the H2 S being utilized as wellfield reductant at the Christensen project. COGEMA averaged 11,818 lbs/day of H2 S on site through the year of 2004, the reporting threshold for H2 S is 500 lbs/day-ave. on site. 4.0 ENVIRONMENTAL MONITORING The environmental monitoring locations are given on the Environmental Monitoring Station Locations Map in Appendix 4. The layouts of each site, including the locations of monitor/trend wells, ponds, surface discharge points and disposal wells are given in the General Location Map, also located in Appendix 4. 41 Groundwater-Moniioring Groundwater quality at both projects is monitored by sampling 327 mfonitor and/or trend wells surrounding and/or within the wellfields. Sampling frequency varies for these wells. Monitor wells on excursion status are sampled weekly. Monitor wells not on excursion and trend wells are sampled monthly until restoration is complete. These wells are then sampled quarterly during the postrestoration and stabilization phase and thereafter if required. Sample analysis results along with water level elevations for 2004 arc provided in Appendix 2. Seven monitor wells surrounding the 517 and USMT sites at IR are sampled annually and reported in the WDEQ Annual Report - August of each calendar year. 4.11 Wells-on-ExursiornStatus Two wvells that went on Excursion status during the 4" quarter of 2003 were corrected and released in the 1S' quarter of 2004. Well SSM8 at the Irigaray project went on excursion status on December 12, 2003. The Production Unit (PU 5) in which SSM8 is located is in the post-stabilization phase of restoration and has had no *vellfield activity since November 15, 2001. The well was monitored weekly from December 10, 2003 through January 13, 2004 when it returned to non-excursion status. The following Table provides the sampling data during the excursion period: SSM - 8 IRIGARAY PROJECT Date Chloride mg/l UCL 16.6 Conductivity umhos/cm UCL 2389 Alkalinity mg/l UCL 112.2 pH U308 Water Level Elevation 12/10/03 25.4 2471 123.2 7.9 < 0.4 4314.4 12/16/03 22.3 2344 112.2 7.9 < 0.4 4312.5 12122/03 22.8 2310 112.9 7.8 < 0.4 4312.5 12130103 21.8 2318 110.5 7.8 < 0.4 4312.5 1/7/04 20.3 2314 102.7 7.8 <0.4 4312.5 1/13/04 21.2 2267 108.9 7.8 <0.4 4312.5 At CR well 2MW68S went on excursion on December 1, 2003 and remained there until corrective pumping of adjacent recovery wvells reversed the excursion and allowed the well to be removed from excursion status. The following Table provides the sampling data during the excursion period: MW68S CHRISTENSEN RANCH PROJECT MINE UNIT 2 Date Chloride mg/l UCL 23.5 Conductivity umhos/cm UCL 3560 Alkalinity mg/l UCL 304.0 pH U308 Water Level Elevation ft. 12/1/03 32.6 2572 375.4 7.2 <0.4 4575.7 12/2103 35.2 2585 409.8 7.0 <0.4 4575.7 1219/03 21.6 2454 266.8 7.1 <0.4 4574.7 12/17/03 22.5 2502 280.2 6.9 <0.4 4574.7 12/22/03 32.6 2579 389.2 7.0 <0.4 4574.7 12/29/03 16.6 2428 220.8 7.3 <0.4 4575.7 1/6/04 17.0 2434 227.1 7.4 <0.4 4573.7 1/13/04 28.6 2555 349.2 7.0 <0.4 4575.2 1/21/04 17.2 2437 216.6 7.3. <0.4 4575.2 1/27/04 17.0 2420 222.0 7.4 <0.4 4575.2 2440 234.7 7.4 <0.4 4575.2 2432 234.5 7.2 <0.4 4575.2 2/3/0417.6 2/11/04 17.2 The only well to go on excursion during 2004 was CR well 5MW66. On July 21, 2004 this well exceeded all three of its upper control limits (UCL) during its routine quarterly sampling (MU 5 is in the stabilization phase of restoration). To avoid reactivation of wells within this unit, COGEMA requested, and was granted special sampling and evaluation parameters until the excursion could be fully evaluated. This evaluation was completed on December 9, 2004 with the following proposal presented to the WDEQ: 1. Remove 5MW66 from official excursion status, as most wvellfield concentrations are lower than the corresponding concentrations in 5MW66. It does not appear that the current groundwater in the wellfield is causing the problem. 2. Continue monitoring 5MW66 on a quarterly basis until the MU 5 restoration package is submitted to and approved by the WDEQ. Updates of the well will be submitted to the WDEQ and NRC quarterly. The final status of 5MW66 would then bc addressed in the agency approval of the restoration for MU 5. This proposal is currently awaiting response from the WDEQ. 4.1.2 RegiinalRanchlWells Annual groundwater samples were collected from five ranch wells near the CR project and one ranch well near IR. The samples were analyzed for Uranium along with Thorium-230, Radium-226, Lead210 and Polonium-210. The resulting data are given in Table 4 of Appendix 1. All radionuclides were at very low or non-detectable (ND) concentrations, as is typical. No negative trends in the data were noted. 4.2 SurfaceWater-Monitoring Willow Creek is the only source of surface water present within and adjacent to the permit boundaries of both IR and CR projects. Willow Creek is an intermittent stream and is sampled annually in the spring, when flow is typically available. Three sample locations are designated at both project sites; upstream, downstream and within the permit boundary. The Powder River is also sampled annually at the Brubaker Ranch, which is approximately 4.5 miles downstream from its confluence with Willow Creek. Analysis data for both chemical and radionuclide parameters are provided in Table 5 of Appendix 1. All radionuclides were low or ND, and no exceedances of NRC 10 CFR 20, Appendix B effluent limits occurred. No negative trends in this data were noted. 43 SurfaceDischargeoMnitoring A surface discharge outfall was available at each project for disposal of treated groundwater generated by restoration activities during the report period. The outfalls are licensed by the U.S. Environmental Protection Agency (EPA) under National Pollutant Discharge Elimination System (NPDES) permits issued by the WDEQ. No water was discharged at the IR project (Permit No. WY0028801, discharge 001) or at the CR site (Permit No. WY0033642, discharge 002) during this report period. When these discharge points are in operation, routine sampling is conducted on a weekly monthly and quarterly basis as required by the NPDES permits. These samples are also analyzed for radionuclide activity (Uranium, Radium-226, Thorium-230, Polonium-210 and Lead210) and compared to the NRC's 10 CFR 20 Appendix B - effluent limits. No data set is included for the current report period. NPDES Permit WY0028801 (discharge 001) was allowed to expire on October 31,2004 as COGEMA had no necessity for continuation of this permit. The IR General Location Map (Appendix 4) reflects the removal of this discharge point. The Federal Water Pollution Control Act and WDEQ - NPDES Program requires facilities with an approved Storm Water Discharge permit to collect water samples and report, "run-offfrom storm events wvith greaterthan 0.1 inches of rainfall", semi-annually in the second, fourth and sixth year of the license period. The CR project is covered by NPDES license WYR0O-0904 for the period from September 1, 2002 to August 31, 2007. As 2004 comprises the non-reportable (third year) period, no statement was submitted. Additionally, the CR project had no chemical materials susceptible to storm water discharge and/or no storm events with rainfall greater than 0.1 inches occurred within the project area. Therefore, no samples were collected and/or analyzed for compliance with this permit. 4A SpiL ndIkReports Four reportable spills of wellfield circulation waters or waste water occurred during the 1 and 2 nd quarters of 2004 and were detailed in the WDEQ Annual Report - August 18, 2004. A reportable spill is defined by the WDEQ as any spill of "hazardous"substances that enters or threatensto enter Waters of the state and any spill > 420 gallons of anyfluid. For the readers convenience they are repeated herein: On January 16,2004 a spill of well field injection water in the amount of 3,179 gallons was spilled in CR MU 4, at well 4M42-2, when a frozen well head cracked. For details of this incident the reader is referred to the WDEQ Spill Report of January 26, 2004 to Mr. Mark Taylor. On March 4, 2004 approximately 15,000 gallons of waste pond water was spilled along the east side of IR pond RB (see map Appendix 4) when an unsecured flow line shifted location and began discharging fluid outside of the pond embankment. The incident is detailed in WDEQ Spill Report of March 11, 2004 to Mr. Mark Taylor. On May 19,2004 approximately 1,200 gallons of waste pond water was spilled outside the IR plant annex (west side), when an operator accidently selected the wrong discharge line. This spill had a uranium concentration level of 990 ppm. For details please see WDEQ Spill Report dated May 25, 2004 to Mr. Mark Taylor. On May 20, 2004 a spill of 900 gallons of waste pond water was discharged at CR Waste Pond 3 when the flow line to that pond was cracked by an operator driving over it. For details please see the WDEQ Spill Report also written on May 25, 2004 to Mr. Mark Taylor. All of these spills except the one on May 19, 2004, contained only minor uranium (<13 ppm) and/or radium (< 60 pCi/g) concentrations and no other "hazardous" constituents. The areas are identified on Spill Report Maps and will be evaluated and cleaned-up during final decommissioning efforts. During the sites. 4.5 3 rd and 4 th quarters of 2004 no reportable spills occurred at either the IR or CR project AirMonitoring 4.5.1 Radon Environmental monitoring of radon was eliminated beginning in 2002, as per the NRC approved Decommissioning Plan. The radon release estimate for 2004 is calculated below for restoration operations. This estimate is based upon the release rates given in the Calculation of Annual Radon Emissions tables, of the 1996 License Renewal Application. Table 7.3(A)-3, Christensen Ranch, lists a restoration release rate of 258 Curies/year at a flow of 500 gpm (0.516 Curies per gpm, per year). Therefore, at 929.8 gpm annual average recovery: 929.8 X 0.516 = 479.8 Total Curies of Radon. 4.5.2 DryerStack-Emissions Dryer stack emissions monitoring was eliminated beginning in 2002, as per the NRC approved Decommissioning Plan. The dryer did not operate during 2004. 4.53 AirborneRadionuclides During dryer operations, continuous airborne radionuclide sampling is required at specified environmental locations at the IR project. However, since no drying occurred during 2004, no sampling was conducted. Gamma-Radiation-Monitoring Environmental monitoring of gamma radiation was eliminated beginning in 2002, as per the NRC approved Decommissioning Plan. 4.6 5.0 OTHER INFORMATION REQUIRED BY SECTION 12.6 - NRC LICENSE 5. ALARAAudit The 2004 As Low As Reasonably Achievable (ALARA) audit is scheduled to be completed in March 2005. When finished, copies will be forwarded to attach to this report as Appendix 3. 5.2 LandllseiSurivey The primary use of surrounding lands at both JR and CR projects continues to be rural sheep and cattle ranching. The livestock graze these lands, but are fenced-out of areas such as the evaporation ponds, plant sites and wellfields. The secondary use of surrounding lands continues to be petroleum production from wells dispersed throughout the region. The closest oil well at the CR project is located approximately one third of a mile west of the CR plant. The closest oil well at the IR site is located approximately one half mile east of the PU 9 wellfield. No new oil wells have been drilled in close proximity to either project during 2004. Over the past several years (2001 - 2004) some additional interest has developed in the immediate area of the CR project for the development of coal bed methane (CBM) gas. Several CBM wells wvere drilled within a half mile of CR MU 5 & 6 during 2002. At present these wvells are capped and awaiting additional evaluation and pipeline installation before development continues. No CBM wells were drilled in close proximity to either project during 2004. The nearest residence to the IR site is 4 miles to the north (the Brubaker ranch) and the nearest residence to CR is the John Christensen ranch located 3 miles southeast of the CR plant site. Both are ranch housing with a population of 5 or less. No new residences have been added within 5 miles of either site since the regional demography wvas evaluated in Section 2.3.1Vof the 1996 License Renewal Application. 5-3 MoritoringData 5.33. On March 8, and August 16, 2004 Wyoming State Mine Inspections were conducted by Mr. Tom McDonald, Deputy Inspector of Mines. No violations of state mine regulations were cited and only one "corrective action" was requested during the March 8 1h inspection. This was a minor request that at the IR facility an electrical cover plate in the shop area be replaced, as it was missing. Neither inspection resulted in any Notice of Violation issued. 5.32 On March 21, 2004 an incident occurred at the CR Man Camp in which an off-duty wellfield operator was discovered deceased of natural causes. An investigation of the incident was conducted by Mr. Robert Solaas - Wyoming State Deputy Mine Inspector, with the conclusion that "the death did not occur as a result ofjob relatedillness or accident 5233 An Annual NRC Facility Inspection was conducted on August 11, 2004 by Ms. Judith Walker, NRC Region IV Health Physicist. Overall the inspection determined that "COGEMA has continuedto operate the facilities (IR & CR) in a safe and effective manner". No violations, open items, or deviations were identified during the inspection. 5.4 SFlRP Summary COGEMA's Safety and Environmental Review Panel (SERP) (NRC License Section 9.4 (C)) were not called upon for any reviews during 2004. APPENDIX I Tables 1 through 6 K-) TABLE 1 COGEMA Mining, Inc. -- Irigaray and Christensen Ranch Projects 2004 Annual Report Christensen Ranch Project Groundwater Restoration Volumes (Mine Units 2, 3, 4, 5, & 6) Year 2004 Month January February March April May June July August September October November December Gallons Injected in thousands 33,950 42,222 34,464 33,185 42,261 33,641 35,325 44,168 33,517 37,963 27,954 22,297 420,947 Gallons Recovered in thousands 40,025 50,757 41,168 40,042 50,570 39,874 40,467 51,299 40,087 46,150 32,395 26,634 499,468 Total Total I:JMV\wp\2004rpt\04_EFFLUl\TABLES\gwvol .xis Average Recovery Flow Rate (gpm) 992 1,007 1,021 1,001 1,003 988 1,010 1,017 994 923 803 660 TABLE 2 COGEMA Mining, Inc. - Irigaray and Christensen Ranch Projects 2004 Effluent Report NOTE: IRPONDS A,C,DE,& RA Sample Type: Waste Ponds (quarterly) ARE EMPTY & INDECOMISS. Sample Date: March 2004 NOTE: ND=NON bETECTABLE Sulfate (mg/l) 10,600 Chloride f(mg/) 244,000 NH4 as N (mg/1) 1.6 N03 & NO2 as N (ffvA) 2.2 TDS (mg/l) 339,000 Conductivity 172,000 pH 8.2 Zinc (mg/l) ND' Uranium (mg/l) Radium 226 (pCi/I) 759 IR-D iR-C IR-B IR-A Pond ID# 616 14,700 CR-Plpern. 13.2 Chloride (mg/l) 21,100 2.8 NH4 as N (mg/I) 0.4 ND N03 & N02 as N(mg/l) 0.5 0.1 (mg/I) 70,600 200 Conductivity 68,200 9.1 363 ND ND 144 0.0008 266.8 ND CR-2 3,400 400 ND CR-3 6,440 18,000 ND CR4 9,530 22,800 0.1 Sulfate (mgAI) TDS IR-RB IR-RA IR-E Pond ID # _ pH Zinc (mg/l) Uranium ___ _ (mg/l) : Radium 226 (pCi/l) . . 8.6 Pond ID # Sulfate (mg/I) Chloride (mg/I) NH4 as N (mg/i) CR-I 993 463 ND N03 & N02 as N (mgWl) 0.2 0.2 0.2 0.2 TDS (mg/I) 3,070 8,180 44,200 53,100 Conductivity pH 4,700 8.9 10,300 9 53,000 8.4 60,500 8.4 Zinc (mg/I) ND ND ND ND Uranium (mg/l) Radium 226 (pCiA) 14.5 35.3 5.45 124.9 6.45 102.5 6.68 42.6 _ J ;WP2004RPT\DEQ\04_EFFUL\PondsO04XLS TABLE 2 (Page 2 of 4) COGEMA Mining, Inc. - Irigaray and Christensen Ranch Projects 2004 Effluent Report Sample Type: Waste Ponds (quarterly) NOTE: IRPONDS A,C,D,E,& RA ARE EMPTY & INDI_ECOMISS. Sample Date: June, 2004 NOTE. ND = NON DETECTABLE Pond ID# Sulfate (mg/l) Chloride (mg/l) NH4 as N (mg/l) IR-A IR-B 49,300 211,000 1.2 IR-C IR-D IR-RB CR-P IPerm. 32,400 17 32,100 4.4 0.1 ND N03 & N02 as N (rng) ND ND TDS (mg/) 107,000 320 Conductivity 89,200 476 9 8.3 ND 139_ ND <.2 963 <2 CR-3 19,200 46,400 1 0.3 74,400 76,800 8.7 ND 6.2 9.09 CR-4 19,000 132,000 1.2 0.3 228,000 162,000 8 ND 4.2 83.2 _ N03 & N02 as N (vgA) 1.2 TDS fma) 340,000 168,000 8.3 nd 181 537 Conductivity pH Zinc (mg/I) Uranium (mg/l) Radium 226 (pCi/l) Pond ID # IR-E IR-RA Sulfate (mg/I) . Chloride (m/l) NH4 as N (mg/l) . . pH Zinc (mg/I) . Uranium (mg/l) Radium 226 (pCi/I) Pond ID # Sulfate (mg/l) Chloride (mgAi) NH4 as N (mg/I) N03 &N02 as N(mdl) TDS (mg/I) Conductivity pH Zinc (mg/I) Uranium (mg/I) Radium 226 (pCi/I) CR-1 1,150 659 ND ND 4,030 5,760 8.9 ND 14.1 118 CR-2 8,510 20,800 ND ND 56,400 60,900 8.9 ND 11.4 23.4 J;WP2004RPT\DEQ\04_EFFULkPondsO04.XLS TABLE 2 (Page 3 of 4) COGEMA Mining, Inc. - Irigaray and Christensen Ranch Projects 2004 Effluent Report NOTE: IRPONDS A,,C,D,E.& RA Sample Type: Waste Ponds (quarterly) :ECOMISS. ARE EMPTY &INDE Sample Date: September, 2004 NOTE: ND= NON DE Pond ID # IR-A Sulfate (mg/I) Chloride (mg/1) NH4 as N (mg/I) ___ IR-B 48,900 203,000 1.8 . 1.21 333,000 155,000 _ N03 & NO2 as N (mgAl) TDS (mg/I) Conductivity pH _____ 8.1 __ Pond ID# Sulfate (mg/I) IR-RB 44,400 _ _ CR-P1 perm 35 6 _50,500 NH4 as N (mg/I) N03 & N02 as N (mgA) TDS (mg/() Conductivity pH. Zinc (mg/q) Uranium (mg/I) Radium 226 (pCi/I) R-D , . IR-RA IR-E | ____ _ _ ____ ND 753 983 Zinc (mg/l) Uranium (mg/I) Radium 226 (pCi/l) Chloride (mg/l) IR-C _ __ . . ND 0.22 143,000 ND 0.06 310 105,000 8.9 ND 242 959 447 8.7 ND 0.005 ND Pond ID # CR-1 CR-2 CR-3 CR-4 Sulfate (mg/l) 1,220 12,600 17,100 4,950 Chloride (mg/I) 704 28,300 47,400 7,010 ND ND 0.13 ND N03 & NO2 as N (mgI) 66,600 4,110 TDS (mg/I) 70,300 5,260 Conductivitv 9 8.9 pH ND ND Zinc (mg/I) 12.4 9.8 Uranium (mg/I) 10.3 22.4 Radium 226 (pCi/I) J;WP2004RPT\DEQ\04_EFFL\Ponds04.XLS ND 0.21 94,500 92,300 8.9 ND 11.3 13.9 ND NH4 as N (mg/I) 0.57 21,400 28,000 8 ND 1.91 260 TABLE 2 (Page 4 of 4) COGEMA Mining, Inc. - Irigaray and Christensen Ranch Projects 2003 Effluent Report NOTE: IR PONDS A ,C.D,E,& RA Sample Type: Waste Ponds (quarterly) ARE EMPTY & IN DI=ECOMISS. Sample Date: December, 2004 NOTE: ND=NON DETECTABLE No Samples -All Ponds Frozen IR-D IR-C IR-B IR-A Pond ID# r Sulfate (mg/I) Chloride (mg/l) NH4 as N (mg/l) ___ __ ____ ___ . N03 & N02 as N (mg/Q) TDS (mg/A) Conductivity 2pH Zinc (mg/l) Uranium (mg/i) Radium 226 (pC/I) . IR-E Pond ID # Sulfate (mg/l) IR-RB IR-RA CR-PI perm. Chloride (mg/I) NH4 as N (mg/I) N03 & N02 as N (mgtl) TDS (mgIl) Conductivity pH Zinc (mg/l) Uranium (mg/I) Radium 226 (pCi/I) ____ Pond ID # CR-1 Sulfate (mg/l) Chloride (mg/I) ____ __ _ _____ CR-2 NH4 as N (mg/I) N03 & N02 as N (mgAi) TDS (mg/1) Conductivity pH Zinc (mg/I) Uranium (mg/I) Radium 226 (pCi/I)_ J;WP2004RPT\DEQ\04_EFFUL\PondsO04.XLS _ __ __ CR-3 CR-4 2004 CHRISTENSEN RCH. WELL INTEGRITY TESTING SUMMARY i J;JMA\WP\2004RPT\DEQ\O4-EFFLUATABLESWIT 04ALS 3 j TABLE IBOTTOM I PASSI FAIL HOLE_# 2AG25-1 2AF25-1 2AD25-1 2AE23-1 2AD23-1 2AC23-1 2AC25-1 2AE25-1 2AE12-2 2AF15-1 2AF17-2 2AF19-1 2AG21-2 2AF23-1 2AE10-1 2AE24-1 2AC24-1 2AG24-2 2AD24-1 2AF22-1 2AE18-3 2AF20-1 3E7-2 2AE16-1 2AE13-3 2AF11-1 3E9-1 3E6-2 3E11-2 3D11-1 3E8-1 3F7-1 3F11-2 3F10-1 3A13-1 3B13-2 3B14-1 3D13-1 3A12-3 3E13-1 3B12-1 3F13-1 3D14-1 3E14-1 3F15-2 3G14-1 3E15-1 3D15-3 3D16-2 3F17-1 3C15-2 3C17-2 3C18-2 3D19-1 3D17-1 P P P P F P P F P P P P P P P P P P P P P P P P P P P F P P P P P P P P P P P P P P P P P P P P P P P P P P P LOWER _ INITIAL CASING PACKER DATE CASING TESTED TYPE DEPTH DEPTH 116104 116/04 116/04 117/04 1/7/04 1/7/04 117/04 1/7/04 1/8/04 1/8/04 1/8/04 1/8/04 1/8/04 1/8/04 1/12/04 1112/04 1/12/04 1112/04 1/12/04 1/12/04 1/13/04 1/13/04 1/14/04 1/14/04 1/14/04 1/14/04 1/14/04 1/14/04 1/15/04 1/15/04 1115/04 1/15/04 1/15/04 1/15/04 1(19/04 1/19/04 1/19/04 1/19/04 1/19/04 1/19/04 1/19/04 1119/04 1/20/04 1/20/04 1/20/04 1/20/04 1/20104 1/20/04 1/20/04 1/21/04 1/21/04 1/21/04 1/21/04 1/21/04 1/21/04 PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC 367 353 338 352 350 335 342 346 354 353 360 362 363 359 355 355 344 366 352 363 355 363 286 356 355 346 288 287 284 295 284 292 300 283 299 285 273 272 288 277 274 277 278 273 278 269 270 265 270 264 277 273 283 276 255 355 340 330 340 340 330 330 335 345 340 350 350 350 350 345 345 335 355 340 355 345 355 275 345 345 335 275 275 275 285 275 280 290 270 290 275 265 265 280 265 265 265 270 265 270 260 260 260 260 255 265 265 275 265 245 j ____-_I PRESSURE FINAL LOSS % LOSS 158 158 12 6 9 12 168 10 10 7 4 5 7 100 6 6 162 156 161 160 161 158 155 160 162 157 160 154 158 153 161 160 154 160 154 6 12 7 8 7 10 13 8 6 11 8 14 10 15 7 8 14 8 14 158 160 158 160 159 153 156 158 156 158 162 160 153 162 153 158 162 160 158 160 158 162 157 156 166 162 156 10 8 10 8 9 15 12 10 12 10 6 8 15 6 15 10 6 8 10 8 10 6 11 12 2 6 12 4 7 4 5 4 6 8 5 4 7 5 8 6 9 4 5 8 5 8 100 6 5 6 5 5 9 7 6 7 6 4 5 9 4 9 6 4 5 6 5 6 4 7 7 1 4 7 PRESSURE PRESSURE 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 _ 156 162 159 156 2004 CHRISTENSEN RCH. WELL INTEGRITY TESTING SUMMARY K) TABLE 3 J;JM\AWP\2004RPT\DEQ\04_EFFLL\TABLESWMIT I I I- I HOLE # I FAIL ITESTED1 3E17-1 3E19-1 3D8-1 3F8-2 3E10-1 3D12-2 2H6S-1 3B11-1 3G11-3 3G13-1 3F14-1 2H2S-1 2H3S-2 213S-1 2H4S-1 215S-1 2H7S-2 2H8S-2 2H5S-2 2G6S-1 216S-1 217S-1 3C21-1 3D21-2 3C19-1 3B16-2 3D18-2 3B318-1 3H18-1 3F19-2 3G16-1 3G15-1 3D10-1 3E21-1 3820-1 3D22-1 3C20-1 3D20-2 3H118-2 31H-17-1 3E16-2 3E18-3 2K8S-1 3123-1 3H22-1 3121-1 3124-1 3J23-1 3K27-1 3K27-2 3K26-1 3K25-2 3K25-1 3J25-1 3L27-2 3K28-2 I P P P P P P P P P P P P P P P P P P P P P P P P P P P p p P P P P P P P p P P P P P P P P P P P P P P P P P P F 1/21i04 1/21/04 1/22104 1/22/04 1122t04 1/22/04 1/27/04 1/27/04 1/27/04 1/27/04 1/27/04 1/28/04 1/28/04 1/28/04 1/28/04 1/28/04 1/29/04 1/29/04 1/29/04 1/29/04 1/29/04 1/29/04 1/29/04 2/2104 2/2104 2/2/04 2/2/04 2/2/04 2/3/04 2t3104 213/04 2/3/04 2V3/04 214/04 2/4/04 2t4104 2/9/04 2/9/04 2/10/04 2110/04 2/10/04 2/10/04 2/10/04 2112/04 2/12/04 2/12/04 2/12/04 2/12/04 2t16/04 2116/04 2/16/04 2/16/04 2/16/04 2/16/04 2/17/04 2/17104 I IBOlTOMI LOWER I TYPE PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC I DEPTH 257 250 301 288 287 276 304 291 277 268 272 296 299 290 305 300 298 300 307 307 324 321 290 283 268 280 251 291 230 265 255 262 285 275 274 276 263 248 233 256 264 263 276 247 218 216 278 260 285 250 239 237 278 282 277 279 DEPTH 1PRESSUREIPRESSURE 245 240 290 280 275 265 290 280 265 260 260 285 290 280 295 290 290 290 295 295 315 310 280 270 260 270 240 280 220 255 245 250 275 265 265 265 250 240 3220 245 255 255 265 235 210 210 270 250 275 240 230 225 270 270 265 270 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 9 160 156 153 158 154 158 154 160 153 154 160 158 156 155 154 155 156 161 160 152 156 159 162 160 161 156 153 159 157 154 154 164 154 158 162 160 159 158 160 162 152 157 156 159 153 159 160 158 156 159 153 156 160 154 156 1 04XLS I I I I LOSS % LOSSI 8 12 15 10 14 10 14 8 15 14 8 10 12 13 14 13 12 7 8 16 12 9 6 8 7 12 15 9 11 14 14 4 14 10 6 8 9 10 8 6 16 11 12 6 15 9 8 10 12 9 15 12 8 14 12 5 7 9 6 8 6 8 5 9 8 5 6 7 8 8 8 7 4 5 10 7 5 4 5 4 7 9 5 7 8 8 2 8 6 4 5 5 6 5 4 10 7 7 5 9 5 5 6 7 5 9 7 5 8 7 100 2004 CHRISTENSEN RCH. WELL INTEGRITY TESTING SUMMARY TABLE 3 J:JMV\WP\2004RPT\DEQ\04_EFFLL\TABLES\MIT04.XLS I I _ _ HOLE 3H21-2 3H20-1 3119-1 3129-3 3127-1 3J26-1 3128-1 3M29-1 3L30-1 3129-4 3J27-1 3K31-3 3K31-1 3J30-1 3K30-1 3L31-2 3K30-2 3J30-2 3J29-1 3J29-2 3J28-2 3J27-2 3J28-3 3K33-1 3K33-2 3J31-1 3J32-1 3J35-1 3K32-1 3M154 3M15-3 3L15-1 3K14-1 3L16-3 3N15-2 3N17-2 3N18-2 3019-3 3M17-2 3M17-3 3L16-2 3L17-3 3L16-1 3M16-1 3N18-1 3M18-2 3N19-1 3M19-3 3N21-3 3M21-2 3M21-1 3L19-2 3L19-3 3L18-1 3M 19-1 3M19-4 PASS| DATE I | FAIL ITESTEDI P P P F P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P 2117/04 2/17/04 2/17/04 2/18/04 2/18104 2/18/04 2118/04 2118/04 2/18/04 2/18/04 2119/04 2/19/04 2/19/04 2119/04 2119/04 2119/04 2123/04 2/23/04 2/23/04 2123/04 2123/04 2/23/04 2123/04 2/24/04 2/2404 2/24104 2/24/04 2/25/04 2/25/04 2/25/04 2/25/04 2125/04 2/25/04 2/26104 2126/04 2/26/04 2/26/04 2126/04 2/26104 2/26104 2126/04 2/26104 3/2104 3/2/04 3/2/04 3/2104 3/2/04 3/2/04 3/3/04 3/3/04 3/3/04 3/3/04 33/04 3/3/04 3/3/04 3/3/04 _ CASING TYPE PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC I_ I BOTTOMI LOWER I _| | _ | 1PRESSURE |CASINGIPACKER| INITIAL I FINAL LOSS % LOSS I DEPTH I DEPTH IPRESSURE IPRESSUREI 250 239 237 276 237 280 233 229 231 239 282 257 292 247 274 239 243 248 301 248 247 249 285 304 257 270 304 317 248 215 250 204 198 249 211 216 214 227 231 206 209 210 248 213 221 211 207 228 207 211 245 221 205 229 255 219 240 230 225 265 225 270 220 220 220 230 270 250 280 235 255 230 230 240 290 240 235 240 275 285 245 260 295 310 240 210 240 195 190 240 200 205 205 220 220 200 200 200 240 200 210 200 200 220 200 200 235 210 195 220 240 210 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 157 156 156 11 12 12 158 160 158 156 156 160 154 160 156 155 154 160 153 155 158 160 156 159 155 164 160 156 156 160 160 158 160 154 156 160 164 159 160 158 162 157 160 162 156 161 154 156 156 160 156 158 160 160 161 158 159 156 10 8 10 12 12 8 14 8 12 13 14 8 15 13 10 8 12 9 13 4 8 12 12 8 8 10 8 14 12 8 4 9 8 10 6 11 8 6 12 7 14 12 12 8 12 10 8 8 7 10 9 12 7 7 7 100 6 5 6 7 7 5 8 5 7 8 8 5 9 8 6 5 7 5 8 2 5 7 7 5 5 6 5 8 7 5 2 5 5 6 4 7 5 4 7 4 8 7 7 5 7 6 5 5 4 6 5 7 2004 CHRISTENSEN RCH. WELL INTEGRITY TESTING SUMMARY i jTABLE 3 - J;JM\AWP\2M4RPT\DEQ\04 EFFLL\TABLES\MIT_04.XLS I I I PASS1 DATE HOLE# 3121-1 3023-1 3021-1 3L23-4 3L23-2 3K22-1 3L21-3 3N22-4 3N21-2 3117-1 3K18-2 3K18-1 3L18-2 3K20-3 3L20-1 3M20-2 3N20-1 3M23-1 3M24-1 3N24-1 3N23-5 3122-1 3M22-3 3M22-1 3N22-1 3M25-1 3L24-1 3L24-2 3L23-5 3K19-1 3K19-2 3MN18-1 3K16-1 3K17-1 3K17-3 3K21-2 3025-4 3M23-2 3027-2 3M27-1 3N27-1 3N26-2 3N26-1 3P25-3 3P27-2 3027-1 3K24-1 3P22-1 3L25-1 3L26-1 3P23-1 3P21-2 3N28-1 3Q23-1 3021-1 3N25-3 I TFAILTESTEDr P P P P P .P P P P P P P P P P P P P P P P P P P P p P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P 3/3/04 314/04 3/4/04 3/4/04 3/4/04 3/4/04 3/4/04 3/4104 3/4/04 3/4/04 3/8/04 3/8/04 3/8/04 3/8/04 3/8/04 3/8/04 3/8/04 3/9/04 3/9/04 3/9/04 319/04 3/9/04 319/04 3/9/04 3/9/04 3/10/04 3/10/04 3/10/04 3/10/04 3/10/04 3/10/04 3/11/04 3/11/04 3/11/04 3/11/04 3/11/04 3/11/04 3/11/04 3/15104 3/15/04 3/15/04 3/15/04 3/15/04 3115/04 3/15/04 3/15/04 3/16/04 3/16/04 3/16/04 3116/04 3/16/04 3/17/04 3/17/04 3/17/04 3117/04 3/17/04 CASING TYPE PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC pvc PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC IBOTTOMI I LOWER 1 _ I I fPRESSUREI ____ ICASINGIPACKERI INITIAL FINAL DEPTH DEPTH PRESSURE PRESSURE 196 215 221 201 240 252 234 215 247 232 196 237 205 202 235 228 216 242 244 209 210 238 223 247 248 190 237 210 213 236 206 257 202 229 196 200 211 200 206 196 253 247 211 204 235 237 242 221 210 192 221 228 206 220 212 210 185 205 210 190 230 240 225 205 240 170 185 225 195 190 225 220 205 230 235 200 200 230 210 240 240 180 215 200 200 225 200 250 190 220 190 190 200 190 195 190 240 240 200 190 225 225 210 210 200 180 210 220 190 210 200 200 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 160 154 156 162 160 158 160 160 158 155 160 154 155 160 156 156 158 162 156 160 162 154 160 157 154 156 162 158 160 153 160 156 158 153 158 162 158 158 162 156 156 158 162 164 158 158 156 163 164 158 158 157 152 158 159 162 LOSS |%LOSS 8 14 12 6 8 10 8 8 10 13 8 14 13 8 12 12 10 6 12 8 6 14 8 11 14 12 6 10 8 15 8 12 10 15 10 6 10 10 6 12 12 10 6 4 10 10 12 5 4 10 10 11 16 10 9 6 5 8 7 3 5 6 5 5 6 8 5 8 8 5 7 7 6 4 7 5 4 8 5 7 8 7 4 6 5 9 5 7 6 9 6 4 6 6 4 7 7 6 4 2 6 6 7 3 2 6 6 7 10 6 5 3 2004 CHRISTENSEN RCH. WELL INTEGRITY TESTING SUMMARY TABLE 3 I J:JM\AWP'2004RPT\DEQ\04 EFFLLATABLESWIT_4.XLS I - I I I |__PASS| DATE I HOLE # I FAIL I TESTEDI CASING TYPE P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC 3025-3 3N25-1 3024-2 3T21-4 3S21-2 3S21 -1 3R21-1 3R20-1 3S 19-1 3R19-1 3Q20-1 3P22-1 3Q24-1 3Q22-1 3S20-1 3Q19-2 3R26-3 3R25-1 3R23-1 3R22-1 3K15-1 3Q26-1 3P30-1 3Q29-1 3Q28-1 3Q27-1 3028-1 3029-3 3031-2 3N30-3 3032-2 3P31-3 3P32-1 3P33-2 3031-1 3S29-1 3S31-1 3R30-3 3R29-1 3R31-1 3Q33-1 3033-1 3032-1 3P33-1 3S27-1 3S26-1 3U27-1 3U25-2 3V25-1 3T24-1 3U23-1 3Q30-2 3R32-1 3R30-2 3T31-1 3R33-2 3/17/04 3/17/04 3117/04 3/18104 3/18/04 3/18/04 3/18/04 3/18/04 3/18/04 3/18/04 3/18/04 3/18/04 3/23/04 3/23/04 3/23/04 3/23/04 3/23/04 3/23/04 3/23/04 3123/04 3/24/04 3/24/04 3/24/04 3/24/04 3/24104 3124/04 3/24/04 3/24/04 3/25/04 3/25/04 3/25/04 3/25/04 3/25/04 3/25/04 3/25/04 3/29/04 3/29/04 3/29/04 3/29/04 3/29/04 3/29/04 3/29/04 3/29/04 3/29/04 3/30/04 3/30/04 3/30/04 3/30/04 3/30/04 3/30/04 3/30/04 3/30/04 3/31/04 3/31/04 3/31/04 3/31/04 I I X I BOFTOM I LUWER I Y I I I I I |CASING|PACKER| INITIAL I FINAL |PRESSURE| I DEPTH I DEPTH I PRESSURE I PRESSURE I LOSS I % LOSS] 247 240 214 210 205 202 209 211 209 223 225 225 227 211 209 221 231 210 214 222 203 213 212 212 195 216 237 199 244 271 268 235 271 270 266 240 238 253 233 233 270 277 245 235 237 242 266 260 259 256 230 244 237 235 258 235 240 230 205 200 195 190 200 200 200 215 215 219 110 200 200 210 220 200 205 210 190 200 200 200 185 205 225 190 235 260 260 225 260 260 255 230 230 245 225 225 260 265 235 225 225 230 255 250 250 245 220 235 225 225 250 225 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 154 156 156 160 162 158 160 156 160 155 158 153 156 158 156 154 160 162 156 162 158 160 156 158 154 158 160 156 158 160 154 157 156 160 160 159 158 160 158 160 157 156 162 160 164 162 160 165 161 154 160 156 155 156 158 157 14 12 12 8 6 10 8 12 8 13 10 15 12 10 12 14 8 6 12 6 10 8 12 10 14 10 8 12 10 8 14 11 12 8 8 9 10 8 10 8 11 12 6 8 4 6 8 12 7 14 8 12 13 12 10 11 8 7 7 5 4 6 5 7 5 8 6 9 7 6 7 8 5 4 7 4 6 5 7 6 8 6 5 7 6 5 8 7 7 5 5 5 6 5 6 5 7 7 4 5 2 4 5 7 4 8 5 7 8 7 6 7 2004 CHRISTENSEN RCH. WELL INTEGRITY TESTING SUMMARY K> TABLE 3 I IBOTTOMI LOWER I I ! PASS DATE | TYPE 3/31/04 3/31/04 3131/04 3/31/04 3/31/04 4/5/04 4/5/04 4/5/04 4/5/04 4/5/04 4/5/04 4/5/04 4/5/04 4/6/04 4/6/04 4/6/04 4/6/04 4/6/04 4/6/04 4/7/04 4/7/04 4/7/04 4/7/04 4/8/04 4/8/04 4/8/04 4/8/04 4/8/04 4/12/04 4/12/04 4/12/04 4/12/04 4/12/04 4/12/04 4/12104 4/13/04 4/13/04 4/13/04 4/13/04 4/13/04 4/13/04 4/13/04 4/13/04 4/13/04 4/14/04 4/14/04 4/14/04 4/14/04 4/14/04 4/14/04 4/14/04 4/15/04 4/20/04 4/20/04 4/20/04 4/20/04 PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC YM YM YM YM YM YM P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P F P P P P P P P P P P P P P P P P P P P P IDEPTH - 242 245 255 248 246 238 249 279 270 280 270 277 275 272 275 272 322 228 228 288 286 282 283 247 255 238 265 267 272 275 269 275 273 281 275 296 285 277 282 286 290 292 281 295 295 291 322 317 271 307 270 271 275 275 282 289 DEPTH 230 235 245 240 235 230 240 270 260 270 260 270 265 265 265 265 310 210 220 275 275 270 270 240 235 230 255 255 260 265 260 265 265 270 265 285 275 265 270 275 280 280 270 280 285 280 310 310 260 300 260 260 250 265 270 280 I I INITIAL CASING HOLE# I FAIL TESTED 3R35-2 3S35-2 3R28-1 3S30-1 3T27-2 3S33-2 3S34-1 3T35-1 3U37-1 3U39-1 3T39-1 3T41 -1 3U41-2 3T43-1 3U43-1 3T45-1 3Q45-2 3P44-2 3Q43-1 3V45-1 3V47-2 3U47-1 3T47-1 3S32-2 3S34-2 3R34-1 3T37-1 3U35-1 3T40-1 3S40-1 3T38-1 3T42-1 3V53-1 3V54-2 3V56-1 3W66-2 3W55-1 3W57-2 3V57-1 3X59-2 3X61-1 3X63-2 3V64-1 3V66-1 3V67-1 3S44-1 3Q46-1 3P42-1 3T46-1 3037-2 3V51-1 3U48-1 3V55-1 3V52-2 3V58-2 3W62-1 4.XLS J;JMV\WP\2004RPT\DEQ\O4_EFFLLATABLESlIT I FINAL ICASINGPACKER PRESSURE[ LOSS %LOSS] 160 160 156 154 158 162 158 160 158 160 158 160 157 162 159 158 161 160 162 157 161 158 160 158 153 158 160 157 159 162 157 154 158 158 162 8 8 12 14 10 6 10 8 10 8 10 8 11 6 9 10 7 8 6 11 7 10 8 10 15 10 8 11 9 6 11 14 10 10 6 156 160 158 161 162 158 164 154 156 160 159 159 160 154 160 160 159 156 158 158 12 8 10 7 6 10 4 14 12 8 9 11 8 14 8 8 9 12 10 10 5 5 7 8 6 4 6 5 6 5 6 5 7 4 5 6 4 5 4 7 4 6 5 6 9 6 5 7 5 4 7 8 6 6 4 100 7 5 6 4 4 6 2 8 7 5 5 7 5 8 5 5 5 7 6 6 PRESSUREI PRESSURE 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 I I 2004 CHRISTENSEN RCH. WELL INTEGRITY TESTING SUMMARY IITABLE 3 I l IHOLE# IPASSI DATE I I FAILITESTED J;JMV\WP\2004RPT\DEQ\04EFFLUATABLES\MITO0.XLS .Y-I 3W65-1 3N23-3 3X60-2 3U45-1 3W67-1 3V68-1 3T48-1 3U46-1 3Y49-1 3Y50-2 3Y51-2 3Y53-1 3Y55-2 3Y57-1 3Z59-3 3AA59-1 3Z57-1 3Z55-1 3Z53-1 3Y52-1 3AA55-1 3AA53-1 3AB53-2 3AB55-2 3AA56-1 3AB57-1 3AB58-4 3AC59-2 3AC57-3 3AB59-1 3AB61-1 3AC61-1 3AC62-1 3AC63-5 3AB63-1 3AA61-2 3Y58-1 3Y56-1 3Y54-1 3Y47-2 3AA54-1 3AA57-1 3AA58-3 3Z54-1 3Z56-1 3AB56-2 3AB60-1 3AB62-1 3Z62-1 3Z60-1 3AC71-4 3AB69-1 3AC67-1 3AD65-2 3AB66-2 3AC65-1 P P P P P P P P P P P P P P P P P P P P P P P P P P P P P IP P P P P IP P P P P P P P P P P P P D IP P P P P P P 4/20/04 4120104 4/20/04 4/21/04 4/21104 4121/04 4/21104 4/21/04 4/27/04 4/27/04 4/27/04 4/27/04 4/27/04 4/27/04 4/27/04 4/27/04 4/28/04 4/28/04 4/28104 4128/04 5/3/04 5/3/04 5/3/04 5/3/04 5/3/04 5/3/04 5/3/04 5/3/04 5/3/04 5/4/04 5/4104 5/4/04 514/04 5/4/04 5/4/04 5/4/04 5/4/04 5/5/04 515/04 5/5/04 5/5/04 5/5/04 5/5/04 5/6/04 5/6/04 5/6/04 5/6/04 5/6/04 5/6/04 5/6/04 5/11/04 5/11/04 5/11/04 5/11/04 5/11/04 5/11/04 I - 13LTJ1UMI LOWER I CASING |CASING PACKER| INITIAL TYPE DEPTH DEPTH YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM Ym YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM Ym YM 307 248 289 286 290 299 278 277 370 377 357 374 369 399 385 371 370 360 339 339 362 366 370 365 366 362 372 365 367 372 387 366 366 373 401 394 400 375 371 358 369 378 370 352 371 366 383 380 411 387 370 374 389 361 362 363 295 210 280 275 280 290 270 270 360 365 345 365 360 390 375 360 360 350 330 330 350 355 360 355 355 350 360 355 355 360 375 355 355 365 390 385 390 365 360 350 360 370 360 340 360 355 375 370 400 375 360 365 380 350 350 355 9 I I I FINAL PRESSUREIPRESSUREI 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 160 160 162 162 162 154 155 160 160 155 160 158 160 156 160 161 153 160 156 158 159 164 158 158 160 158 159 154 155 160 158 160 162 156 162 156 156 159 160 154 156 158 159 154 156 159 153 15 160 154 160 153 154 155 158 158 I I |PRESSURE| LOSS TLOSS] 8 8 6 6 6 14 13 8 8 13 8 10 8 12 8 7 15 8 12 10 9 4 10 10 B 10 9 14 13 8 10 8 6 12 6 12 12 9 8 14 12 10 9 14 12 9 15 13 8 14 8 15 14 13 10 10 5 5 4 4 4 8 8 5 5 8 5 6 5 7 5 4 9 5 7 6 5 2 6 6 5 6 5 8 8 5 6 5 4 7 4 7 7 5 5 8 7 6 5 8 7 5 9 8 5 8 5 9 8 8 6 6 2004 CHRISTENSEN RCH. WELL INTEGRITY TESTING SUMMARY K) TABLE'. 1 lI -I-I-I HOLE# 3AC65-2 3AB65-2 3AC69-1 3AB71-1 3AB74-3 3W68-3 3X69-1 3W69-1 3T44-2 3AA64-2 3AB64-1 3AC66-2 3AB68-1 3AB70-1 4F1-1 3AC73-1 3W71-2 3V69-3 3W77-1 3X79-2 3X81-2 3Y81 -1 3X83-2 3Y83-1 3X85-2 3Y85-1 3Z85-1 3Y87-1 4E2-1 3W70-1 3X71-2 4E3-2 4E2-1 3AA87-1 4F3-1 4E5-1 4G3-1 3V70-1 3W75-1 3W78-1 3W80-2 3X82-1 3X84-1 3AC82-1 3AC83-1 3AB82-1 3N32-1 3AC81-1 3AD81-2 3AC84-1 3AD83-1 3AC85-4 3AD85-2 3AE85-2 3AD86-1 3AF83-1 J;JM\AWP\2004RPT\DEQ\04_EFFLLATABLES\MITO04.XLS - - - I IlI I~ I IPASSI DATE I FAIL I TESTED) P P P P P P P P P P P P P PD P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P P 5/11/04 5/11/04 5/12/04 5/12/04 5/12/04 5/12/04 5/12/04 5/12/04 5/13/04 5/13/04 5/13/04 5/13/04 5/13/04 5/13/04 5/17/04 5/17/04 5/17/04 5/17/04 5/17/04 5/17/04 5/17/04 5/17/04 5/17/04 5118/04 5/18/04 5/18/04 5/18/04 5/18/04 5118/04 5/19/04 5/19/04 5/19/04 5/19/04 5/19/04 5119/04 5/19/04 5119/04 5/20/04 5/20/04 5/20/04 5/20/04 5/27/04 5127/04 5127/04 6/7/04 6/7/04 6/7/04 6/8/04 6/8/04 6/8104 6/8/04 6/8/04 6/8/04 6/8/04 6/28/04 6/28/04 CASING TYPE YM YM YM YM YM YM YM YM YM YM YM YM YM YM PVC YM YM YM YM YM YM YM YM YM YM YM YM YM PVC YM YM PVC PVC YM PVC PVC PVC YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM YM I BUTTOMI LOWER I LO E I u-UI PACKER1 ICASING DEPTH DEPTH 387 406 371 380 390 301 296 307 273 400 390 369 378 372 323 382 298 304 315 335 325 319 317 320 312 338 339 328 338 314 300 310 297 299 299 350 343 306 303 331 326 320 312 387 392 394 272 399 395 391 387 425 417 385 398 364 375 395 360 370 380 290 285 295 250 390 380 360 370 360 310 370 290 295 305 325 315 310 310 310 300 330 330 320 330 305 295 300 290 290 290 340 330 295 295 320 315 310 300 380 380 365 230 385 385 380 380 415 405 365 390 355 I I YI I I I I JPRESSUREJ FINAL INITIAL .,-LOSS LOSS PRESSURE PRESSURE 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 156 153 158 161 158 154 166 160 158 159 158 153 162 158 157 158 154 160 160 164 156 160 160 158 159 154 158 158 156 161 162 154 156 155 158 154 156 154 158 160 158 158 154 160 158 160 154 159 157 154 160 156 160 158 154 160 12 15 10 7 10 14 2 8 10 9 10 15 6 10 11 10 14 8 8 4 12 8 8 10 9 14 10 10 12 7 6 14 12 13 10 14 12 14 10 8 10 10 14 8 10 8 14 9 11 14 8 12 8 10 14 8 7 9 6 4 6 8 1 5 6 5 6 9 4 6 7 6 8 5 5 2 7 5 5 6 5 8 6 6 7 4 4 8 7 8 6 8 7 8 6 5 6 6 8 5 6 5 8 5 7 8 5 7 5 6 8 5 2004 CHRISTENSEN RCH. WELL INTEGRITY TESTING SUMMARY J;JMV\WP\2004RPT\DEQ\04_EFFLU\TABLES\MIT_04.XLS TABLE 3 I - IBOTTOMI LOWER I l i_ PASS_ DATE IHOLE # FAIL TESTED TYPE 3AF85-1 3AD86-2 3AE83-1 3AE87-2 3AF87-1 3AE84-1 3AF82-1 3AE86-1 3AD87-3 3AF84-1 3AC79-1 3AB80-2 4J1-2 3X86-1 3Z86-2 3Y84-1 3Z87-1 3AB78-1 3AB77-2 4F5-1 4H3-3 P P P P P P P P P P P P P P P P P P P IP P 6128104 6/28/04 6/28/04 6/28/04 7/14/04 7/14/04 7/14/04 7/14/04 7/14/04 7/14/04 7/14/04 7/14/04 7/14/04 7/26/04 7/26/04 7/26/04 7/26/04 8/10/04 8/10/04 8/11/04 8/11104 YM YM YM YM YM YM YM YM YM YM YM YM PVC YM YM YM YM YM YM PVC PVC 375 302 377 389 386 373 361 386 420 368 413 394 302 315 305 320 303 416 415 340 329 365 290 365 380 375 369 350 375 370 360 400 380 290 309 290 310 290 400 400 330 320 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 168 4F2-2 P 8/11/04 PVC 315 305 4G2-2 413-1 P P 8/11/04 8/11/04 PVC YM 339 318 330 310 4H2-1 P 8/11/04 PVC 323 4J3-1 3Y86-1 3AD87-1 4J2-1 412-1 4K3-1 4K2-1 5MW66 P P P P P P P P 8/11/04 8/11/04 8/12/04 8/12104 8/12104 8/12104 8/12104 10/5/04 PVC YM YM PVC PVC PVC PVC PVC 294 310 383 374 294 361 369 265 CASING CASING PACKER IDEPTH - I INITIAL FINAL . . . I - I I PRESSURE LOSS % LOSS I 154 162 160 158 154 156 158 160 154 160 154 156 160 156 159 156 158 156 158 159 158 14 6 8 10 14 12 10 8 14 8 14 12 8 12 9 12 10 12 10 9 10 8 4 5 6 8 7 6 5 8 5 8 7 5 7 5 7 6 7 6 5 6 168 156 12 7 168 168 160 154 8 14 5 8 310 168 156 12 7 285 300 310 365 285 350 360 255 168 168 168 168 160 168 168 168 158 160 155 158 155 160 156 160 10 8 15 10 15 8 12 8 6 5 9 6 9 5 7 5 DEPTH PRESSURE PRESSURE J;JMVW1P2004RPT\DEQ\4_EFFLUATABLESWMIT_04.XLS C C Table 4 C COGEMA Mining, Inc. - Irigaray and Christensen Ranch Projects 2004 Annual Effluent Report Sample Type: Regional Groundwater (RanchWeis)-Annual Samples Sample Location: Christensen Ranch House #3 Radionuclide Uranium Thodium-230 Radium-226 Lead-210 Polonium-210 July21. 2004 (uCi/ml) 1.0 E-8 ND 1.8 E9 ND ND Sample Location: Christensen Ellendale #4 Radionuclide Uranium Thorium-230 Radium-226 Lead-210 Polonium-210 July21. 2004 (uCiml) ND ND 5.0 E.10 ND ND Sample Location: Christensen Willow Corral #32 Radionuclide Uranium Thorium-230 Radium-226 Lead-210 Potonium-210 July21, 2004 (uCi/nl) ND ND 4.0 E.10 ND ND Sample Location: Irigaray Wiltow #2 Radionuclide Uranium Thorium-230 Radium-226 Lead-210 Polonium-210 July 21. 2004 (uCilmll ND ND 3.0 E.10 ND ND Sample Location: Christensen Middle Artesian Radionuclide Uranium Thorium-230 Radium-226 Lead-210 Polonium-210 July 21. 2004 (uCvmi) ND ND B.O EI10 ND ND Sample Location: Christensen Del Gulch Lower #13 Radionuclide Uranium Thofium-230 Radium-226 Lead.210 Polonlum-210 July, 2004 (uClImI) Not Available Pump Down Sample Location: Christensen First Artesian Well #1 Radionuclide Uranium Thorium-230 Radium-226 Lead-210 Pofonium-210 July 21, 2004 (uCLml) ND ND 3.0 E-10 ND ND LLD (uCi/ml) 2.0 E-9 Uranium 0.2 E-9 Thorlum-230 0.2 E-9 Radium-226 2.7 E-9 Lead-210 2.7 E9 Polonium-210 ND = NON DETECTABLE J:JM\'\WP\2004RPr.lEQ\04-EFFULTABLES\G-WTRC C TABLE 5 (Page 1 of 2) COGEMA Mining, Inc. Irigaray and Christensen Ranch Projects 2004 Annual Report Sample Type: Surface Water, Annual Samples, July 21, 2004 Sample Location: Irigaray Project Note: ND = Non Detectable Willow Creek IR-9 Downstream (uCi/ml) No Sample No Flow Radionuclide Uranium) Thorium-230 Radium-226 Lead-21 0 Polonium-210 Chemical Parameters Total Alkalinity mg/L Chloride mg/L TDS mg/L Specific Conductivity umhos/cm Sulfate mg/L pH s.u. Arsenic mg/L Selenium mg/L Estimated Flow Rate: Low = <5 cfs Medium = 5 - 50 cfs High = > 50 cfs No Flow Willow Creek IR-14 Upstream (uCimrl) 19.3 9 ND ND ND ND Willow Creek IR-17 Mine Site (uCl/ml) 237 47 5090 5000 3000 7.57 0.004 ND 239 46.7 5050 5030 3000 7.53 0.003 ND 202 716 3370 4560 1200 8.02 0.002 0.004 Very Low Very Low Low 20.1 E-9 ND ND ND ND Powder River IR-5 Ranch Site (uCi/ml) 8.0 E-9 ND .3E-9 ND ND LLD (uCUml) 0.2 E-9 10 CFR 20 Appendix B Effluent Limit (uClml) 3.0 8-7 0.2 E-0 0.2 E-9 2.7 E-9 2.7 E-9 1.0 1.0 10 1.0 6 0.01 0.001 0.001 6.0 E408 1.0 E-08 4.0 E-08 N/A N/A NIA N/A N/A N/A N/A N/A J;UWkWP04RPTIEQ\04_EFFUL\TABLES\S-WTR_04.XLS CTABLE 5 (Page 2 of 2) COGEMA Mining, Inc. Irigaray and Christensen Ranch Projects 2004 Annual Report Sample Type: Surface Water, Annual Samples, July 21, 2004 Sample Location: Christensen Ranch Project Note:ND = Non Detectable Radionuclide Uranium Thorium-230 Radium-226 Lead-21 0 Polonium-210 Willow Creek GS-01 Downstream (uCi/ml) No Sample No Flow Chemical Parameters Total Alkalinity mg/L Chloride mg/l TDS mg/L Specific Conductivity umhos/cm Sulfate mg/L pH s.u. Arsenic mg/L Selenium mg/L Estimated Flow Rate: Low =<5 cfs Medium = 5 - 50 cfs High = > 50 cfs Willow Creek CG-05 Upstream (uCi/ml) 3.3 E-9 ND ND ND ND Willow Creek GS-03 Mine Site (uCi/ml) No Sample No Flow 231 10.6 2420 2410 1310 7.72 0.006 ND No Flow Very Low LLD (uCiml) 0.2 E 0.2 E-9 0.2 " 2.7E-' 2.7 E 9 1.0 1.0 10 1.0 30 0.01 0.002 0.005 10 CFR 20 Appendix B Effluent Limit (uCI/ml) 3.0 E-07 .oE-07 1.0 4.0 E-08 N/A N/A N/A N/A N/A N/A N/A N/A No Flow J;\JMW\WP\2004RPTRDEQ\04EFFUL\TABLES\S-WTRO04.XLS C TABLE 6 c( COGEMA Mining, Inc. - Irigaray and Christensen Ranch Projects 2004 Annual Effluent Report Sample Type: Surface Discharge Water Sample Location: Christensen Ranch Project, Discharge # 002 (Permit # WY0033642) Year 2004 Discharge Limits January February March April May June July August September October November December Average Maximum Flow (MGD) average ND ND ND ND ND ND ND ND ND ND ND ND 0.45 NA Total Uranium as U (mg/I) monthly sample Dissocved Radlum-226 (pCiI) monthly sample Total Radium-226 (pCi/I) monthly sample Total Suspended Solids (mgA) weekly samples maximum Chemical Oxygen Demand (my/) quarterly sample Total Zinc (mgI) quarterly sample pH (units) minimum weekly samples maximum Selenium (mg/I) quarterly sample Total Uranium (uC/ml) quarterlv sample Total Radium 226 (uCiml) quarterly sample Total Thorlum-230 (uCVml) quarterly sample Total Lead-210 (uCIml) quarterly sample Total Polonium-210 (uCVml) quarterly sample ND ND ND ND ND ND ND ND ND ND ND ND 2 4 ND ND ND ND ND ND ND ND ND ND ND ND 3 10 ND ND ND ND ND ND ND ND ND ND ND ND 10 30 ND ND ND ND ND ND ND ND ND ND 20 30 ND ND ND ND ND ND ND ND ND ND ND ND NDND_____200 ND ND 100 200 ND ND ND ND ND ND ND ND ND ND ND ND 0.5 1.0 ND ND ND ND ND ND ND ND ND ND 6.0 9.0 ND ND ND ND ND Iminimummaximum ND ND ND ND ND ND ND ND 0.05 0.1 ND ND ND ND ND ND ND ND ND ND ND ND 3E-07 ND ND ND ND ND ND ND ND ND ND ND ND 6E-08 ND ND ND ND ND ND ND ND ND ND ND ND 1E-07- ND ND ND ND ND 1E08 ND ND ND ND ND 4ER-5 _ ND I I ND ND ND ND ND ND ND ND ND ND ND ND ND NDNDFir%____ ND ND __ NA -Not Applicable ND- No Discharge toCFR 0 20, Appendix 0.Table11, Column 11Effluent Limitations J:UM'AWPi2004RPT\DEQ\04_EFFUL\TABLES\SUR-DIS.XLS APPENDIX 2 Monitor and Trend Well Sampling Data Monitor and Trend Well Index Irigaray Project Page I of 5 Monitor Wclls Perimeter Ore Zone Well Location M2 M4 M7 M10 M17 M18 M19 M23 M24 M25 M26 Page No. No. Mine Unit 2 Mine Unit 2 Mine Unit 1 Mine Unit 4 Mine Unit 1 Mine Unit I Mine Unit 3 Mine Unit 5 Minc Unit 6 Mine Unit 6 Mine Unit 7 2 3 4 5 6 7 8 9 10 11 Well No. Location Page No. M27 M28 M29 M30 M31 M32 M33 T31 RS27 16-151 Mine Unit 7 Mine Unit 8 Mine Unit 8 Mine Unit 9 Mine Unit 9 Mine Unit 9 Mine Unit 9 Mine Unit 1 Mine Unit 5 Mine Unit 9 12 13 14 IS 16 17 18 19 20 21 SSM19 SSM34 SSM35 SSM36 SSM37 SSM38 SSM39 SSM40 SSM41 SSM42 SSM43 Mine Unit 8 Mine Unit 9 Mine Unit 9 Mine Unit 9 Mine Unit 7 Mine Unit 7 Mine Unit 7 Mine Unit 8 Mine Unit 4 Mine Unit 3 Mine Unit 1 33 34 35 36 37 38 39 40 41 42 43 DM14 DMI5 DM16 DM17 DM18 DM19 DM20 DM21 DM22 Mine Unit 8 Mine Unit 9 Mine Unit 9 Mine Unit 5 Mine Unit 4 Mine Unit 3 Mine Unit 3 Mine Unit 7 Mine Unit 6 Shallow Sand SSM2 SSM3 SSM4 SSM5 SSM6 SSM7 SSM8 SSM9 SSM10 SSMII SSM18 Mine Unit 1 Mine Unit 2 Mine Unit 2 Minc Unit 3 Mine Unit 4 Mine Unit 5 Mine Unit 5 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 8 22 23 24 25 26 27 28 29 30 31 32 Deep Sand DMI DM2 DM3 DM4 DM5 DM9 DM10 DM 11 DM13 Mine Unit 1 Mine Unit 1 Mine Unit 2 Mine Unit 4 Mine Unit 2 Mine Unit 5 Mine Unit 6 Mine Unit 7 Minc Unit 8 44 45 46 47 48 49 50 51 52 . 53 54 55 56 57 58 59 60 61 Christensen Ranch Project Monitor and Trend Well Index Page 2 of Monitor Wells Perimeter Ore Zone Well No. MW17-2 MW18 MW19 MW20 MW23 MW24 MW25 MW26 MW27 MW28 MW29 MW30 MW31 MW32 MW35 MW36 MW37 MW38. MW39 MW40 MW41 MW42 MW43 MW44 MW45 MW62 MW63 MW64 MW73 MW74 MW75 MW76 MW77 MW78 MW79 MW80 MW81 MW82 MW83 MW84 MW85 MW86 Location I .5. _I Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 5 Page No. 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 Well No. MW87 MW88 MW89 MW90 MW101 MW102 MW103 MW104 MW105 MW106 MW107 MWI08 MW 109 MW110 MWII MWI14 MWIIS MW116 4MW-I 4MW-2 4MW-3 4MW-4 4MW-S 4MW-6 4MW-7 4MW-8 4MW-9 4MW-10 4MW-I I 4MW-12 4MW-13 4MW-14 4MW-IS 4MW-16 4MW-17 4MW-18 4MW-19 4MW-20 4MW-21 4MW-22 4MW-23 4MW-24 Location I I 5 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Mine Unit 4 Page No. 104 105 106 107 108 109 110 III 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 Monitor and Trend Well Index Christensen Ranch Project Page 3 of 5 Alonitor Wells Perimeter Ore Zone (cont.) Well No. 4MW-25 5MWI 5MW2 5MW3 5MW4 5MW5 5MW6 5MW7 5MW8 5MW10 5MW12 5MW14 5MW16 5MWI8 5MW20 5MW30A 5MW31 5MW32A 5MW33 5MW34 5MW35A 5MW36 5MW37 5MW38 5MW39A 5MW40 5MW41A 5MW42 5MW43 5MW44 5MW45 5MW46 5MW47B 5MW48 5MW49 5MW50 5MW51 5MW52 5MW53 5MW54 5MW55 5MW56 Location I _I Mine Unit 4 Mine Unit 5 Mine Unit S Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit S Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit S Mine Unit 5 Mine Unit 5 Mine Unit S Mine Unit S Mine Unit S Mine Unit S Mine Unit 5 Mine Unit 5 Mine Unit S Mine Unit 5 Mine Unit S Mine Unit 5 Mine Unit S Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Page No. 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 Well No. 5MWS7 5MW58 5MW59 5MW60 5MW61 5MW62 5MW63 5MW64 5MW65 5MW66 5MW67 5MW69 6MW17-2 6MW19 6MW21 6MW23 6MW25 6MW27 6MW29 6MW31 6MW33 6MW34 6MW35 6MW36 6MW37 6MW38 6MW39 6MW40 6MW41 6MW42 6MW43 6MW44 6MW45 6MW46 6MW47 6MW48-3 6MW49 6MW50 6MW51 6MW52 6MW53 6MW54 Location I _I Mine Unit 5 Mine Unit 5 Mine Unit S Mine Unit 5 Mine Unit S Mine Unit S Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit S Mine Unit 5 Mine Unit 5 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Page No. 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 Monitor and Trend Well Index Christensen Ranch Project Page 4of 5 Monitor Wells Shallow Sand Well No. MW-IIS MW46S MW48S MW50S MW52S MW54S MW56S MW58S MW66S-2 MW68S MW70S MW72S MW92S MW94S MW96S MW98S MWIOOS MWl12S MWI 17S 4SM-1 4SM-4 4SM-8 Location I _I Mine Unit 5 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 4 Mine Unit 4 Mine Unit 4 Page No. 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 Well No. 4SRM-07 5SMI 5SM2 5SM3 5SM5 5SM6 5SM7 WCOW-04 6SMI 6SM2 6SM3 6SM4 6SM5 6SM6 6SM7 6SM8 6SM9 6SM10 6SMI I 6SM12 6SM13 6SM14 1 Location I _ _ Mine Unit 4 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Page No. 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 Monitor and Trend Well Index Christensen Ranch Project Page 5 of 5 Mlonitor Wells Deep Sand Well Location No. Page _ Well No. No 5DMIA 5DM2 5DM3 5DM4 5DM5 5DM7 WCOW-37D 6DMI 6DM2 6DM3-2 6DM4-2 6DM5 6DM6 6DM7 6DM8 6DM9 6DM10 6DM11 6DM12 6DM 13 6DM14 M`V-12D MW45D MW47D MW49D MW5 ID MWS3D MW55D MWS7D MW65D MWV67D MW69D MW71D MW91 D MW93D MW95D MW97D MW99D MW113D 4DM-1 4DM-4 4DM-8 Mine Unit S Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 3 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Mine Unit 2 Minc Unit 2 Mine Unit 2 Mine Unit 4 Mine Unit 4 Mine Unit 4 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 4DRM-07 Mine Unit 4 295 Location Page No. Mine Unit S Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 5 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 Location Page _ Trend Wells Perimeter Ore Zone Well Location No. MW78T MW87T 5TW-I 6T'V-1 Mine Unit2 Mine Unit2 Mine Unit 5 Mine Unit 6 Page Well No No. 317 318 319 320 6TW2 6TW3 6TW4 6TW5 MineUnit 6 Mine Unit 6 Mine Unit 6 Mine Unit 6 321 322 323 324 6DTI Mine Unit 6 327 No. Deep Sand 5DM8T 5DM9T Mine Unit 5 Mine Unit 5 325 326 Monitor and Trend Well Index 5-1-7 & USMT (Irigaray) Monitor Wells JJMV\EXCEL\ENV-FORM\M&T WELLS J04_efflu\APPENDICIES\M&T WELLS IRIGARAY PROJECT Perimeter Ore Zone Monitor Wells .K_ COGEMA Mining Inc. NRCDE02REP Mine Unit 2 Well I.D. M2 Water Quality Parameters IRIGARAYRANCH PERIMETER ORE ZONE MONITOR WELL: Chloride mg/I Units Total Alkalinity Specific: Conductance . A Uranium pH 685 : . I Piezometric Elevation msl mg/l mg/l as CaCO3 p mhofcm Upper Control Limit 2004 131.1' Date - 0 17 MAR 2004 160 896 a5 4298 2 I OMAY 2004 160 814 90.2 86 4299.2 03 AUG 2004 16.0 793 92.5 86 4298.3 16 NOV 2004 15.1 783 92.9 87 806 4297.9 M2 * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Dctection Limit. I : al COGENIA Mining Inc. NRCOEQ2REP Mine Unit 2 Well I.D. M4 Water Quality Parameters IRIGARAY RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Total Alkalinity Specific Conductance mg/I Itmho/cm 18.1 2004 Uranium pH mg/I as CaCm3 671 PiezornetriŽ Elevation mg/l msl 100.4 Date 17MAR2004 104 1028 816 83 4310 1 10 MAY 2304 10.7 1026 83 5 84 4310 5 03 AUG 24 104 992 82.3 8.4 4310.4 09 NOV 2004 100 9o9 &3 4310.7 * 83.3 Values Exceed Upper Control Limit M4 Ncgative U308 Grades Indicate Lcss Than Detection Limit. 2 COGEMA Mining Inc. NRCDEO2REP Mine Unit I Well I.D. M7 Water Quality Parameters IRIGARAY RANCH PERIMETER ORE ZONE MONITOR WELL. Chloride mg/I Units Upper Control Limit Total -. Alkalinity Specific Conductance'. 17.5 i mho/cm mg/i as CaCO3 679 109.8 ! 2004 Uranium pH Piezometric I .... Elevation MMs mg/i Date 17 MAR 2004 11.5 1684 10MAY 2004 11.6 1675 03 AUG 2004 11.5 1601 09 NOV 2004 11.1 1563 ,. 83.1 80 4309.8 84.6 80 4312.1 . 84.6 8.1 431221 X. 85.1 7.9 4310.0 , 1 .'M7 , * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 3 11 COGEMA Mining Inc. NRCDEO2REP Mine Unit 4 Well I.D. M1O Water Quality Parameters Units Upper Control Limit IRIGARAY RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Total Alkalinity Specific Conductance mg/I 17.5 St mho/cm 2004 pHf mg/I as CaCO3 701 Uranium Piezometric Elevation mg/I msl 132.3 Date 17MAR 2004 11 3 606 95.4 86 4302 6 23 JUN 2004 1221 597 964 87 4303.0 03 AUG 2104 11.7 599 967 86 4303 0 16NOV 2014 114 600 97 5 88 4301.3 * Values Exceed Upper Control Limit N1110 Negative U308 Grades Indicate Less Than Detection Limit. 4 COGEMA Mining Inc. NRCOE02REP Mine Unit 1 Well I.D. M17 -1/ . Water Quality . Parameters * Units Upper Control Limit IRIGARAY RANCH PERIMETER ORE ZONE MONITOR WELL-. Chloride mg/l Specific. Conductance . 1. rnholcm 17.1 2004 Total . Alkalinity- pH ; mg/l as CaC0 3 . Elevation mg/I msl : 112.9 724 : .Piezometric Uranium . I Date 12 APR 2004 9.7 652 29.4 2.7 4325.s 10 MAY 2004 9s 652 29 s s5 4304.8 03 AUG 2004 97 643 29.5 s-s 4304.5 09 NOV 2004 9.3 642 90.0 8.4 * 4304.9 M17 * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Dctection Limit. 5 COGEMNA Mining Inc. NRCOEO2REP Mine Unit I Well I.D. Ml8 Water Quality Parameters IRIGARAY RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Total Total Alkalinity Specific Conductance mgi p mho/cm 17 2004 Uranium pH mg/I as CaCO3 719 Piezometric Piezometric Elevation mg/l msl 111.7 Date 17MAR2004 I0S 935 S5 5 93 43103 1OMAY2O004 I09 920 8S0 94 43106 03 AUG 2004 110 974 91.1 93 4310.6 09 NOV 2034 10 4 S5S 907 93 * Values Exceed Upper Control Limit 43109 M18 Negative U308 Grades Indicate Lcss Than Dctcction Limit. 6 COGEMA Mining Inc. NRCDEO2REP Mine Unit 3 Well I.D. M19 : Water Quality Parameters IRIGARAY RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Specific. Conductance ' Mg/l It mho/cm Units Upper Control Limit 17 Total Alkalinity as CaCO3 651- I . 2004 Uranium pH mg/I Piezometric Elevation mg/I msl 116.7 Date 17 MAR 2004 10.6 IONIAY2004 11.2 03AUG2004 09 NOV2004 * 663 . . 890 *5 4311 0 644 928 8.6 4311.5 11.1 631 2 93.7 8.7 4311.5 20.5 632 94.7 85 4311.9 . Values Exceed Upper Control Limit M19 Negative U308 Grades Indicate Less Than Detection Limit. 7 COGEMA Mining Inc. NRCOE02REP Mine Unit 5 Well I.D. MI23 Water Quality Parameters IRIGARAY RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/I Units Upper Control Limit Total Total Alkalinity Specific Conductance It mho/cm 17 2004 Uranium pH mg/l mg/l as CaCO3 614 Piezometric Piezometric Elevation rnsl 106.6 Date 14JUN 2004 10 4 551 105 0 S7 4314 S 03AUG2004 IO0 557 98.6 S6 4315 0 09 NOV 2004 95 555 103 1 SS 4315-2 * Values Exceed Upper Control Limit M23 Negative U30S Grades Indicate Less Than Detcction Limit. 8 COGEMA Mining Inc.: NRCDE02REP Mine Unit 6 Well I.D. M24 Water Quality Parameters IRIGARAY RANCH. PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit mg/I Specific: Conductance . p mho/cm 14.5 632 : Total Alkalinity 2004 Uranium pH mg/I *mg/1 as CaCO3 *Piezometric Elevation msl 119.4 I I Date IOMAR2004 09 496 114.1 8.9 4315.3 14 JUN 2004 a80 495 . 1093 87 4316.0 03 AUG 2004 8.9 493 1080 0.7 4316.1 .09 NOV 2004 8.7 491 1168 88 * Values Exceed Upper Control Limit Negative W308 Grades Indicate Less Than Detection Linit. 4316.2 M24 LI COGEMIA Mining Inc. NRCDEQ2REP Mine Unit 6 Well I.D. M25 Water Quality Parameters IRIGARAY RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Total Alkalinity Specific Conductance mg/I [Lmho/cm 15.5 2004 Uranium pH mg/I as CaCO3 692 Piezometric2 Elevation mg/A msl 111.9 Date 14JLN 20(14 10 9 595 93 6 86 4308 0 03 AUG 2004 10 8 592 966 8.7 4308 0 16 JOV 2004 10 4 589 96 4 87 4308 0 * Values Exceed Upper Control Limit M25 Negalive U308 Grades Indicate Less Than Dtctction Limit. 10 COGEMA Mining Inc., NRCDE02REP IRIGARAY RANCH.. PERIMETER ORE ZONE MONITOR WELL Mine Unit 7 Well I.D. M26 Water Quality Parameters Units Upper Control Limit Chloride . . Total Alkalinity'. Specific: Conductance mg/ 14.6 mho/cm 596 ! . 2004 pH mg/l as CaCO3 113.9. Uranium, Piezometric Elevation mg/l msl . .; : , Date 1O0tAR 2004 10.2 541 1059 8.7 4314 0 14 XJN 2004 96 538 99.F 8.7 4314 4 w9 AU 2004 95 539 97 3 F6 4314.4 09oNV2004 9.1 534 102.4 87 * 4314.5 .-. Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. -1I . M26 ; II COGEMA Mining Inc. NRCDEQ2REP Mine Unit 7 Well I.D. M27 IRIGARAY RANCH PERIMETER ORE ZONE MONITOR WELL 2004 Date 09 MAR 2004 10 a 601 970 86 4310 1 14 UN 2004 11.1 599 964 96 4310.5 09 AUG 2l4 10 S 599 923 935 4310.5 593 100.4 87 4310 5 16NOV2004 * M0.g Values Exceed Upper Control Limit M27 Negative U308 Grades Indicate Less Than Dctcccion Limit. 12 COGEMA Mining Inc.< NRCDE02REP Mine Unit 8 1eIC1 I.D. M28 Water Quality Parameters IRIGARAY RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Total Alkalinity Specific' Conductance mg/i 15.5 P Mho/cm 2004 t mg/i as CaCO3 715 . Piezometric Elevation Uranium pH mg/i 110.9 msl .- Date 09 MAR 2004 11.2 621 96.0 86 4318.8 22 JUN2004 10.8 611 920 86 09AUG2004 11.3 618 93.7 86 4319.1 4319.1 * 09 NOV2004 10.7 614 95.3 86 * . . M28 * Values Exceed Upper Control Limit * Negative U308 Grades Indicate Less Than Detection Limit. .13 4119. COGEMIA Mining Inc. NRCDE02REP Mine Unit 8 Well I.D. M29 Water Quality Parameters IRIGARAY RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Units Upper Control Limit Total Alkalinity Specific Conductance Uranium p'1 Piezometric ElevationI msl mg/i mg/I as CaCO3 1t mho/cm 109.8 702 16.1 2004 Date 09 MAR 2004 10.7 607 95 2 86 4316 4 22JUN2004 tog 59S 94 4 8.7 4316 8 09 AVG 2004 11.3 606 970 85 4316 9 09 NOV 2004 10 6 601 9S9 t.5 * Values Exceed Upper Control Limit 4317.5 M29 Negative U308 Grades Indicate Less Than Detection Limit. 14 COGEMA Mining Inc.. NRCDE02REP Mine Unit 9 Well I.D. M30 Water Quality Parameters IRIGARAY RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Specific Conductance mg/I 15.2 Total Alkalinity 1u mho/cm 2004 Uranium pH msl mg/l mg/l as CaC0 3 704 - Piezometric Elevation 105.5 Date 09 MAR 2004 10 8 621 94.7 86 22 JUN 2004 10 610 929 87 4322.9 09 AUG 2004 10.9 618 90.2 86 4322.7 09 NOV 2004 10.5 613 95.4 86 * Values Exceed Upper Coritrol Limit 4322.2 4322.9 M30 Negative U308 Grades Indicate Less Than Detection Limit. 15 COGEMIA Mining Inc. NR CDEC2REP Mine Unit 9 Well I.D. M31 Water Quality Parameters Units Upper Control Limit IRIGARAY RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Total Alkalinity Specific Conductance mg/y pH1 mg/I as CaCO3 ju mho/crn 15.6 2004 690 Uraniumi Piezometn,-' Elevation mg/I msl 107.2 Date 09 MAR 2004 1t 9 622 103g 86 431S S 22 JUN 2004 12.0 612 1025 86 4319 1 09AUG2004 11 8 619 99.5 85 4319.1 09 NOV 2004 114 614 1040 86 4319 7 * Values Exceed Upper Control Limit M31 Ncgativc U308 Grades Indicate Lcss Than Detection Limit. 16 COGEMA Mining Inc.,. NRCOE02REP Mine Unit 9 Well I.D. M32 - Water Quality Parameters Units Upper Control Limit IRIGARAY RANCH I PERIMETER ORE ZONE MONITOR WELL Chloride mgI Specific Conductance .I ; nmho/cm 16.1 Total Alkalinity. , 2004 , mg/las CaC0 3 mg/I msl .. 107.4 707 'Piezometric : . Elevation . Uranium pH . ,'i Date 09 MAR 2004 11.1 619 96 6 3.6 4324 5 221 JUN 2004 10.7 610 927 38.7 4325.0 09 AUG 2004 10.3 617 91.0 35 4325.1 09 NOV 2004 10.7 612 97.2 3.5 I*Values 4325.5 , M32 Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 17 It COGENIA IMlining Inc. NRCOE02REP Mine Unit 9 Well I.D. M33 Water Quality Parameters IRIGARAY RANCH Chloride Units Upper Control Limit 2004 PERIMETER ORE ZONE MONITOR WELL Total Alkalinity Specific Conductance mg/I ji 15.9 mho/cmn p' 1 Uranium mg/l as CaC0 3 686 Piezometric Elevation mg/l msl 112 Date 09MAR 2304 109 608 968 86 431I5 22 J37 2004 116 598 1002 86 4319 3 09 AUG 2104 10.9 605 92.3 S5 4317 8 09NOV 2004 104 601 o68 85 * Values Exceed Upper Control Limit 43193 M33 Negative U308 Grades Indicate Less Than Detection Limit. 18 COGEMA Mining Inc., NRCOE02REP Mine Unit 1 Well I.D. T31 Water Quality .Parameters IRIGARAY RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/I Units Upper Control Limit Specific Conductance . i rmholcm 21.8 Total Alkalinity . - -mg/l as CaC 3 779: 2004. r pH . .nu Piezometric Elevation msl mg/i 106.1 Date 31 MAR 2004 10MAY2004 03 AUG 2004 16NOV2004 * 18 S 1i.3 19.3 20.0 691 91.6 701 693 706 25.7 S3.: 22.2 Values Exceed Upper Control Limit 86 4296.1 4296.8 4296.1 2.7 U.5 4296.0 8.7 T31 Negativc U303 Grades Indicate Less Than Detection Limit. '19 COGEMA Mining Inc. NRCDE02REP IMine Unit 5 Well I.D. RS27 IRIGARAY RANCH PERIMETER ORE ZONE MONITOR WELL 2004 Date 14JUN LP04 108 625 91 2 35 03 AUG 2004 10 5 620 87.5 8.5 4307.4 16NOV 2004 103 614 94 2 8.7 4308 0 * Values Exceed Upper Control Limit 4307.7 RS27 Negative U308 Grades Indicate Lcss Than Detcction Limit. 20 COGEMA Mining Inc. NRCOE02REP Mine Unit 9 Well I.D. 16-151 Water Quality Parameters Units Upper Control Limit IRIGARAY RANCH 2004 PERIMETER ORE ZONE MONITOR WELL Chloride Total Alkalinity Specific Conductance mg/I p mho/cm 16 Uranium pH mg/l as CaCO3 702 Piezornetric Piezometric Elevation mg/l msl 110.2 Date 09 MAR 2004 10.7 596 92 S 86 4321 8 22 JUN2004 10 5 587 90.1 8.6 4323.2 09 AUG 2004 11.3 593 93.2 8.6 4323.2 09 NOV 2004 10.5 589 95.7 86 * Values Exceed Upper Control Limit 4323.7 16-151 Negative U308 Grades Indicate Less Than Dctection Limit. 21 IRIGARAY PROJECT Interior Shallow Sand Monitor Wells COGEMA Mining Inc. IRIGARAY RANCH. INTERIOR SHALLOW SAND MONITOR WELL NRCOE02REP Mine Unit 1 Well I.D. SSM2 . Water Quality v Parameters Units Upper Control Limit Specific Conductance . Chloride mg/i ,, j -tmho/cm Total Total Alkalinity Anitalinity :.mg/las CaC0 3 2075 a. 20.3 2004 Uranium, pH msl mg/I I. 128.4 ' Piezometric I Piezometric . Elevation Emlevto I I. * Date 31 MAR2004 23.9 2010 -114.3 7.9 4309.9 10MAY 2004 23 7 2029 2234 7.8 4309.9 01 AUG 2004 23.3 I895 113.5 7.7 4309.9 28 DEC 2O4 23 1 1473 I084 7.8 * ^ .- * Values Exceed Upper Control Limit 4309.9 , , :. Negative U308 Grades Indicate Less Than Detection Limit. 22 SSM2 11 COGEMiA Mining Inc. NRCOE02REP Mine Unit 2 Well I.D. SSM3 Water Quality IRIGARAY RANCH INTERIOR SHALLOW SAND MONITOR WELL Parameters Units Upper Control Limit Total Alkalinity Specific Conductance Chloride mgOI mho/cm ni 38.5 Uranium pH Piezometric Elevation mg/I mg/I as CaCO3 1451 2004 msl 219.1 Date 31MAR 2004 69 0 * 195 148 S 79 4312.0 IOMAY 2004 679 * 1947 1411 7.9 43120 09AUG2004 664 * 1875 140 2 78 43119 2SDEC2004 698 * 1532 1359 79 * Values Exceed Upper Control Limit 43119 SSM3 Negative U308 Grades Indicate Less Than Detection Limit. 23 COGEMA Mining Inc. NRCDEQ2REP IRIGARAY RANCH INTERIOR SHALLOW SAND MONITOR WELL Mine Unit 2 Well I.D. SSM4 .Water Quality Parameters Units Upper Control Limit Chloride Total Alkalinity Specific Conductance mgl . I pmho/cm 23.5 Piezometric Elevation msl : Uranium pH mg/ ,.-mgflasCaC0 3 275.5 883 2004 . - Date 3I MA~ 2004 19.3 6S4 10 MAY 2004 166 712 02 AUG 2004 20.3 719 2SDEC 2004 24 8 702 29 DEC 2004 16S 29 DEC 2004 15.2 * 275.5 8.7 4303.2 263.0 S.4 4303.3 2790 84 4307.3 297.8 3.1 4302.8 702 238.7 S4 4302.8 702 220.S S.4 4302.8 ,- . Values Exceed Upper Control Limit SSM4 Negative U308 Grades Indicatc Less Than Dctection Limit. '24 COGENIA Mining Inc. NRCDEO2REP Mine Unit 3 Well [D. SSM5 Water Quality Parameters Units Upper Control Limit IRIGARAY RANCH INTERIOR SHALLOW SAND MONITOR WELL Chloride Total Alkalinity Specific Conductance mg/I St mho/cm 21.5 p11 mg/I as CaCO3 825 2004 Uranium Piezometric Elevation mg/I rnsl 254.9 Date 17.MAR 2O0 14 4 683 248 3 81 4312 S IO.LAY 2304 14 7 689 218 7 83 4312.7 OJAUG 2004 14 6 669 2110 9I 4312.7 28 DEC 2004 15.3 683 205 6 K1 4313 2 * Values Exceed Upper Control Limit SSM5 Negative 0J308 Grades Indicate Less Than Dctection Limit. 25 COGEMA Mining Inc. NRCDE02REP Mine Unit 4 Well I.D. SSM6 Water Quality . Parameters . Units Upper Control Limit IRIGARAY RANCH INTERIOR SHALLOW. SAND MONITOR WELL Chloride mgl Total Alkalinity Specific Conductance .I ho/cm 16.3 Piezometric Piezometric .Elevation : msl Uranium pH mg/ mg/l as CaCO3 122.2 2445. 2004 . : . . . Date 17 MAR 2004 11.9 2018 102.5 7.8 4133.3 23 JUN 2004 11.6 1942 94.7 7.9 4312.0 03 AUG 2004 11.5 1967 93.9 7.9 4312 0 14 DEC 2004 1136 1946 91.9 79 I* Values Exceed Upper Control Limit 4311.0 : Negative U308 Grades Indicate Less Than Detection Limit. 26 SSM6 II COGENMA Mining Inc. NRCDE02REP Mine Unit 5 Well I.D. SSM7 Water Quality Parameters Units Upper Control Limit IRIGARAY RANCH INTERIOR SHALLOW SAND MONITOR WELL Chloride Total Specific Conductance mg/l 17.1 Alkalinity Uranium pHf mg/l as CaCO3 mho/cm n' 2604 2004 Piezometric Elevation msl mg/l 119.4 Date 10MAR 2004 13 7 2252 1134 78 IJJUN2004 134 2184 1068 7.9 4312.3 03 AUG 2004 12 8 2200 98 3 79 4312 0 14 DEC 2004 13 2 2165 1145 79 * Values Exceed Upper Control Limit 4312 1 4316 0 SSM7 Negative U308 Grndes Indicate Less Than Detection Limit. 27 COGEMA Mining Inc. NRCDEQZREP Mine Unit 5 Well I.D. SSM8 Water Quality Parameters Units , Upper Control Limit IRIGARAY RANCH, INTERIOR SHALLOW SAND MONITOR WELL Total Alkalinity Specific Chloride Conductance mg/l as CaCO3 P mho/cm mg/i Uranium' Piezometric . Elevation mg/I msl 112.2 2389 16.6 pH 2004 Date 07JAN2004 20.3 * 2314 1027 7.8 4312.5 13 JAN 2004 21.2 ' 2267 108.9 4312.6 10MAR2004 22 9 * 2348 112.8 7.8 7.9 II MtAR2004 20.9 * 2277 104.6 7.8 4312.6 .11 MtAR2004 22.4 * 2268 111.7 7.8 4312.0 14 JUN 2004 23.3 * 2281 1104 7.9 4312.2 03 AUG 2004 22.4 * 2260 107.9 7.9 4312.2 14DEC2004 24.1 * 2284 105 6 7.8 4312.4 * j Values Exceed Upper Control Limit 4312.S SSM8 Ncgative U308 Grades Indicate Less Than Detection Limit. :28 1L COGEMA Mining Inc. NRCDE02REP Mine Unit 6 Well I.D. SSM9 Water Quality Parameters IRIGARAY RANCH INTERIOR SHALLOW SAND MONITOR WELL Chloride Units Upper Control Limit Total Alkalinity Specific Conductance nug/I 15 r1mho/cm mg/i as CaCO3 2008 117.8 2004 Uranium pHl PiezometricElevation mg/I insl Date IO MAR2004 91 1501 98.8 79 4314 7 14JUN 2094 92 1467 95 1 79 4314.5 03 AUG 2e104 S9 1472 92 7 S0 4313 S OSDEC 2001 87 1470 86 2 8l * Values Exceed Upper Control Limit 43148 SSM9 Negative U308 Grades Indicatc Lcss Than Detection Limit. 29 COGEMA Mining Inc. NR CDEO2REP 1117ell IRIGARAY RANCH INTERIOR SHALLOW SAND MONITOR WELL Mine Unit 6 l.D. SSM10 Parameters Units Upper Control Limit . mg/l Total Specific Chloride Watcr Quality Conductance I-pmho/cm 15.5 :: mg/asCaCO3 1955, 177.4 Uranium: pH Alkalinity 2004 mg/ I i . * Piezometric . Elevation msl . , Date 10 MAR 2004 10.9 1510 1106 7.9 4314.5 14 1UN 2004 10.0 1476, 100 I 80 4314 2 03 AUG 2004 10.3 1459 1008 8.0 4314 2 08 DEC 2004 9.7 1370 92 4 2.1 4312 1 * Values Exceed Upper Control Limit SSMIO Negative U30S Grades Indicate Less Than Detection Limit. ! 30 COGEMNA Mining Inc. NRCDEQ2REP Mine Unit 6 Well l.D. SSMI I Water Quality Parameters Units Upper Control Limit IRIGARAY RANCH INTERIOR SHALLOW SAND MONITOR WELL Chloride Total Alkalinity Specific Conductance mg/I 16.2 1g mhal/cm mg/l as CaCO 3 2784 122.9 2004 Uranium pHl Piezometric Elevation mg/l msl 1 Date 10 NtAR 2004 159 2421 97 0 78 4316 1 14JUN 2004 135 2347 824 79 43160 03 AUG 2004 15 4 2359 R9.2 7.7 4316 0 08 DEC 2004 13 1 2303 82 0 80 43160 * Values Exceed Upper Control Limit SSM1I Ncgativc U308 Grades Indicate l ess Than Detection Limit. 31 COGEMA Mining Inc. NFtCDE02REP IRIGARAY RANCH INTERIOR SHALLOW SAND MONITOR WELL Mine Unit 8 WVeIII.D. SSM18 Units Upper Control Limit Specific Conductance Chloride Water Quality Parameters mg/I . ji mho/cm 14.7 Total Alkalinity , mg/I as CaCO3 1849 2004 Piezometric Urnu Uraniu -' .Elevation pH 119.4 nmsl mg/l ; Z - Date 10MAAR2004 19.8 * 2035 154 1 7.7 4315.7 221RN2004 18.9 * 1930 1460 7.8 4315.9 09AUG2004 189 * 2011 144.5 7.8 43152 08DEC2004 18.7 * 1989 136.8 * Values Exceed Upper Control Limit * - - 7.9 4316.D i SSM18 Negative U308 Grades Indicate Less Than Detection Limit. '32 11 COGENIA Mfining Inc. NR COE02REP Mine Unit 8 Well I.D. SSM19 Water Quality Parameters Units Upper Control Limit IRIGARAY RANCH INTERIOR SHALLOW SAND MONITOR WELL Chloride Total Alkalinity Specific Conductance mg/I 13.7 p mho/cm p11 Uranium mgil as CaCO3 1636 2004 mg/l Piezometric1 Elevation I msl 114.1 I Date 094%AR 20n4 88 1479 24 1 82 43264 22 JU4 2004 a8 1427 82.3 82 4316 6 09 AUG 2004 8.7 1465 80 1 8I 4316.6 07 DEC '004 B3 1413 74 8 83 4317 0 * Values Exceed Upper Control Limit SSMI9 Negative U308 Grades Indicate Less TMan D)etection Limit. 33 COGEMA Mining Inc. NRCDE02REP Mine Unit 9 Well I.D. SSM34 Water Quality ; . Parameters IRIGARAY RANCH. INTERIOR SHALLOW SAND MONITOR-WELL mg/l Units Upper Control Limit Total Alkalinity Specific Conductance Chloride ; 13.2 :. p rnho/cm .. 1698 2004 Piezometric Piezo me tric . Elevation Uranium pH mg/l as CaCO3 mg/l msl 110.4 Date 09 MAR 2004 9.0 1212 22 JRN 2004 9.1 l88 09 AUG 2004 8.7 16NOV 2004 89 886 8.1 eS.I S.1 1163 83 1 - B2 4315.1 1186 909 8.2 4315.1 I . .- * Values Exceed Upper Control Limit 4315.0 - SSM34 Negative U30S Grades Indicate Less Than Detection Limit. :34 43150 COGENMA Mfining Inc. NRCDEO2REP Mine Unit 9 Well I.D. SSM35 Water Quality IRIGARAY RANCH INTERIOR SHALLOW SAND MONITOR WELL Chloride Parameters Units Upper Control Limit Specific Conductance mg/l 14.4 pimho/cm 1688 Total Alkalinity PH1 mg/I as CaCO3 2004 Uranium Piezometric Elevation mg/I msl 132.7 Date 09 MAR 2004 9.7 13297 1077 S2 4315 5 22 JUN 2004 99 1278 IO4 I 8.3 4315 a 09 AUG 2004 97 1253 1019 83 4315 7 16NOV 2004 91 1245 1056 84 * Values Exceed Upper Control Limit Ncgativc U308 Gradcs Indicatc Lcss Than Detection Limit. 4315 9 SSM3S COGEMA Mining Inc. NRCDEO2REP Mine Unit 9 Well I.D. SSM36 * Water Quality .Parameters Units Upper Control Limit IRIGARAYRANCH INTERIOR SHALLOW SAND MONITOR WELL Chloride mg/l Total Alkalinity ;mg/i as CaC- 3 Specific Conductance I p mho/cm 13.7 1565 2004 Ur u. pH Piezometric . Elevation mg/I 119.6 msl . -; Date 10 MAR 2004 t.7 1286 1046 82 4317.1 22 JUN 2004 a 5 1242 100.0 82 4317.1 09AUG2004 S.4 1231 99.6 8.2 4317.0 16 NOV 2004 8.4 1239 107.6 S.3 4317.3 * Values Exceed Upper Control Limit SSM36 Negative U308 Grades Indicate Less Than Dctection Limit.. - 36 COGEMA MNining Inc. NRCDEt2REP Mine Unit 7 Well I.D. SSM37 IRIGARAY RANCH INTERIOR SHALLOW SAND MONITOR WELL 2004 , Water Quality Parameters Units Upper Control Limit Chloride Total Alkalinity Specific Conductance mgil 14.3 ji mho/cm Uranium pH mg/I as CaC0 3 1813 ng/l Piezometric Elevation mist 120 Date IOMAIR 2(04 10 2 1497 1106 310 4311.7 1* I t1N ZO4 10 4 1432 1102 R10 4311 S 30 SEP 20C4 10 7 1410 1212 S0 4310 9 07 DEC 2034 9S 1296 112S Sl 4312 0 * Values Exceed Upper Control Limit SSM37 Negative U308 Grades Indicate Less Than Detection Limit. 37 COGEMA Mining Inc. NRCDE02REP Mine Unit 7 Well I.D. SSM38 . Water Quality - --Parameters IRIGARAYJRANCH.; INTERIOR-SHALLOW SAND MONITOR WELL .Chloride Units Upper Control Limit Specific Conductance mg/i 16.2 16220.1. .-pmho/cm Total . Alkalinity pH - mg/las CaCO3 : 2800 2004 UIuIm. Piezometric Uranium Elevation mg/i i msl 118.8 Date - 10MAR 2004 10.8 2160 . . 98.3 7.9 . I4 JUN 2004 10.9 20S6 940 7.9 * ,. 09 AUG 2004 20.8 2108 . 95.9 7.8 07 DEC 2004 112 2046 ,. 117.8 8.1 * Values Exceed Upper Control Limit 4313.7 . -- Negative U308 Grades Indicate Less Than Detection Limit. ;38 . 43144 . 4314.2 : 4314.3 , SSM38 II COGENIA Mining Inc. NRCDE02REP Mine Unit 7 Well I.D. SSM39 Water Quality Parameters IRIGARAY RANCH INTERIOR SHALLOW SAND MONITOR WELL Chloride mg/l Units Upper Control Limit Total Alkalinity Specific Conductance 14.5 pHl mg/I as CaCO3 1imho/cm 2071 2004 Uranium Piezometric Elevation mg/I msl 104.4 Date 2822 10 MAR 2004 11I 1007 8.0 4312.3 14JUN 2004 113 1755 98 1 SO 43124 09 AUG 2004 11.3 1758 97.3 79 4312 4 07 DrEC20 4 it1 1739 Q8 I a0 * Values Exceed Upper Control Limit 43122 SSM39 Negative U30S Grades Indicate Less Than Detection Limit. 39 COGEMA Mining Inc. NR CDEQ2REP Mine Unit 8 Well I.D. SSM40 - . Water Quality Parameters Units Upper Control Limit IRIGARAY RANCH* INTERIOR SHALLOW SAND MONITOR WELL Chloride mg/l Specific Conductance . Lmho/cm 13.6 Total Alkalinity pH I .tmg/lasCaCO3 1672 2004 mg/ 109.2 . I - , Piezometric Elevation msl r .. Date 10MAR - .,I 9.7 1337 95.5 so 4317.0 22 JUN 2004 2004 9.4 1259 92 6 8.0 4318.3 09 AUG 2004 96 1296 . 92.2 7.9 4317.2 07 DEC 2004 13.1 1603 99.8 8.1 4316 8 | " Values Exceed Upper Control Limit SSM40 Negative U308 Grades Indicate Less Than Detection Limit. 40 I II COGENIA Mfining Inc. NRCDEO2REP Mine Unit 4 Well I.D. SSM41 IRIGARAY RANCH INTERIOR SHALLOW SAND MONITOR WELL 2004 , Water Quality Chloride Parameters Upper Control Limit Specific Conductance mgII Units Total Alkalinity 24.9 t mho/cm mg/I as CaCO3 2566 126.8 pll Uranium Piezometric Elevation mg/I msl Date 3I MAR2004 294 1418 1393 a0 4318 5 23 JUN 20C4 39 0 2385 1436 7.7 4318 5 03 AUG 20(04 37 4 24z2 1374 50 4311 9 14DIEC20(4 36 0 2372 1321 78 * Values Exceed Upper Control Limit 4312.2 SSM4 1 Negative 13308 Grades Indicate Less Than Dcwtction Limit. 41 COGEMA.Mining Inc. NRCDE02REP Mine Unit 3 Well I.D. SSM42 Water Quality Parameters Units Upper Control Limit IRIGARAY RANCH' INTERIOR SHALLOW SAND MONITOR WELL Chloride mg/l Total Alkalinity Specific Conductance .! 23.3 mho/cm nit Piezometric Elevation Uranium pH , mg/l as CaCO3 1571 2004 . mg/l 213.2 . is! .. . ,- Date 17MAR2004 I8MAY2004 03AUG2004 28DEC2004 * 342 21.7 21.1 18-7 1155 1138 1085 1058 . 152.7 * 167.3 16%.0 1700 Values Exceed Upper Control Limit 8.8 8.2 82 8.2 .. . . 4304.7 4304.7 ;SSM42 Negative U308 Grades Indicate Less Than Detection Limit. .42 4304.3 4304.7 II COGENIA Mining Inc. NRCDEQ2REP Mine Unit I Well l.D. SSM43 Water Quality Parameters IRIGARAY RANCH INTERIOR SHALLOW SAND MONITOR WELL Units Upper Control Limit Total Alkalinity Specific Conductance Chloride mg/ It mho/cm 25.6 Uranium P11 mg/I as CaCO3 1456 2004 mg/l Piezornetric Elevation msl 170.4 Date 17 MAR 2004 35-4 * 1506 137.7 SI 4310 6 10MAY 2004 35 0 * 1493 1295 81 4311.1 09 AUG 204 34 2 * 1378 125 S 82 4311.1 2SDEC2CO4 338 * 1311 1199 82 * Values Exceed Upper Control Limit 4311.1 SSM43 Ncgalive U308 Grades Indicate Less Than Detection Limit. 43 IRIGARAY PROJECT Interior Deep Sand Monitor Wells COGEMA Mining Inc. fIRCOE02REP Mine Unit 1 "Veil I.D. DM1 Water Quality Parameters Units Upper Control Limit IRIGARAY RANCH INTERIOR DEEP SAND MONITOR WELL . ' Chloride mg/l Specific Conductance Amho/cm Total Alkalinity 207.4 ., Uranium '' pH :; mg/l as CaCO3 609 16.2 2004 mg/i . - Piezometric .11 Elevation msl | Date 31MAR2004 a9 479 10 MAY2004 9.. 483 . 03 AUG 2004 9.0. 469 - 23 DEC 2004 9.9 476 . .. 116.7 8.7 120.9 86 117.3 8.5 112.5 87 4312.4 * ! : . , . ; . . -.. DMI *Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 44 14312.0 4313.0 4313.9 -II COGENIA Mlining Inc. NRCDEQ2 REP Mine Unit I Well I.D. DM2 Water Quality Parameters IRIGARAY RANCH Total Alkalinity Specific Chloride Conductance Units Upper Control Limit 2004 INTERIOR DEEP SAND MONITOR WELL mg/I p mho/cmn 15.1 pHl mg/l as CaCO3 757 Uranium Piezometric Elevation mg/l msl 187.1 Date 17MAR 2004 to 5 619 1805 78 4304 2 10 MAY 2004 85 617 187.4 86 4303 8 03 AUG 2004 S5 602 190 1 82 4304 8 28 D)EC20()4 78 611 1730 85 * Values Exceed Upper Control Limit 4305 8 DM2 Negative UJ308 Grades indicate Less Than Dctcction Limit. 45 COGEMA Mining Inc., NRCDE02REP IRIGARAY RANCH INTERIOR DEEP SAND MONITOR WELL Mine Unit 2 Well I.D. DM3 Chloride Water Quality . - Parameters Units Upper Control Limit mg/i . Total Alkalinity . Specific . Conductance Mmho/cm 15.8 . 2004 : Uranum pH .-:mg/l as CaCQ3 677 . . Piezometric ' Elevation mg/I msl 240.9 Date 17MAR2004 115 541 144 8 83 4307.8 *IOMAY2004 116 543 143 1 8.4 4304.3 03 AUG 2004 I 1.4 523 142.1 84 4308.6 23 DEC 2004 11.4 534 1330 8.5 4310.3 * Values . i Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Dctection Limit. . 46 -, DM3 COGEMIA MIining Inc. NRCDE02REP Mine Unit 4 Well I.D. DM4 Water Quality Parameters IRIGARAY RANCH INTERIOR DEEP SAND MONITOR WELL Chloride Units Upper Control Limit Total Alkalinity Specific Conductance mg/i 14.4 j. mho/cm 2004 Uranium pH mg/I as CaCO3 603 PiezometricPiezometric Elevation rg/I msl 117.6 Date 17MAR 204 92 515 991 88 43115 23 JUN 2(0)4 10 2 507 99 5 89 43119 03 AUG 2104 93 511 95 8 9 43119 29 DEC 2004 96 518 93 0 88 4312 6 * Values Exceed Upper Control Limit DM4 Ncgativc U308 Grades Indicate Lcss Tman Dctcction Limit. 47 COGEMA Mining Inc. NRCDE02REP Mine Unit 2 Well I.D. DM5 Water Quality . Parameters Units I Upper Control Limit IRIGARAY RANCH INTERIOR DEEP SAND MONITOR WELL Chloride mg/l Total Alkalinity Specific Conductance rho/cm ; .- Piezometric Elevation Uranium pH mg/i , mg/l as CaCO3 msl . 206. 675 15.7 2004 Date 17MAR 2004 3.5 612 199.7 30 10 MAY 2004 3.4 620 1945 32 03 AUG 2004 8.3 607 201.6 SI 23 DEC 2004 3.5 613 200 5 S0 . . 4299 6 4297.3 4300 5 4301.6 DM5 * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 48 COGEMlA Mining Inc. NRCDE02REP Mine Unit 5 Wcll I.D. DM19 Water Quality parameters IRIGARAY RANCH INTERIOR DEEP SAND MONITOR WELL Chloride Units Upper Control Limit Specific Conductance mgil Total Alkalinity p mho/cm 16.3 2004 pl 1 mg/l as CaCO 3 647 Uranium Piezometric Elevation mg/I msl 132.7 Date 14JUN 2004 94 516 94 3 88 4312.0 03 AUG 2004 92 514 92 3 SB 4313 3 14DEC 20:04 90 513 88 2 * Values Exceed Upper Control Limit 4314 0 DM9 Negative tJ308 Grades Indicatc Lcss Than Dctcction Limit. 49 NRCDE02REP Mine Unit 6 Well I.D. DM10 .I Water Quality : Parameters COGEMA Mining Inc. IRIGARAY RANCH INTERIOR DEEP SAND MONITOR WELL - - Upper. Control Limit p mho/cm mg/I Units Total Alkalinity Specific Conductance % Chloride pH . mg/i as CaCO3 606 16.4 2004 107.5 Uranium Piezometric Piezometric . Elevation' mg/ msl n I . - Date 10MAR 2004 17.3 667 150.9 8.3 14JUN2004 156 644 I38.2 8.3 03 AUG 2004 15.3 639 1341 84 08DEC2004 142 632 1380 8.5 * * 4317.5 . 4315 B 4318 3 DM10 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. i50 43164 COGEMNA Nlining Inc. NRCDE02REP Mine Unit 7 WeIlIl.D. DMII Water Quality Parameters IRIGARAY RANCH INTERIOR DEEP SAND MONITOR WELL Chloride mg/l Units Upper Control Limit Total Alkaluiity Specific Conductance 15 [t mho/cm 2004 Uranium p11 mg/l as CaCO3 607 Piezometric Elevation mg/I msl 104.7 Date 09 MA\R 2(04 10 2 546 97 9 S7 4313 7 14 JUN204) 104 544 95 2 8.7 4315 6 30 SFP 2004 10 6 539 976 88 4315 0 07 DEC 2004 10.7 542 897 87 4314 6 * Values Exceed Upper Control Limit DM1 1I Negative U308 Grades Indicate Less Than Detection Limit. 51 COGEMA Mining Inc. NRCDE02REP Mine Unit 8 Well I.D. DM13 Water Quality Parameters Units Upper Control Limit IRIGARAY RANCH INTERIOR DEEP SAND MONITOR WELL Chloride mg/i Specific Conductance p mho/cm 15.1 624 Total Alkalinity - mg/i as CaCQ3 2004 Uranium,' pH mg/ 113.5 ! I Piezometric Elevation - msl - . Date 09MAR 2004 99 533 22 JUN 2004 9.9 526 09 AUG 2004 9.S 03 DEC 2004 9.7 104.9 8.7 4319.4 100.9 9.7 4319 0 543 94.9 8.6 . 4318.1 540 91.1 8.9 4319 5 : * * Values Exceed Upper Control Limit DM13 Negative U308 Grades Indicate Less Than Detection Limit. -:52 COGENIA Miniing Inc. NRCDEO2REP Mine Unit 8 Well I.D. DM14 Water Quality Parameters IRIGARAY RANCHI INTERIOR DEEP SAND MONITOR WELL Chloride Units Upper Control Limit Total Alkalinity Specific Conductance mg/I 15.5 ,I mho/cm 2004 Uranium pH mg/I as CaCO3 619 Piezometric Elevation mg/I msl 109.5 Date 09 NVAR2'1J14 10 3 558 101 4 889 22 JUN 20)4 10 2 5J4 98 4 8.9 43168 09AU)G2004 106 559 98 5 8.8 43170 07 DEC 2004 10 3 549 90 7 89 * Values Exceed Upper Control Limit 4315S 4318 0 DM14 Negative U30S Grades Indicate Less Than Detection Limit. 53 COGEMA Mining Inc. IRIGARAY RANCH NRCOEO2REP Mine Unit 9 'Well I.D. DM15 * n Water Quality Parameters Chloride Total Specific Conductance .- mg/l 15.1 mho/cm up Uranium; I pH Alkalinity , --.1 Units Upper Control Limit 2004 INTERIOR DEEP SAND MONITOR WELL mg/ , mg/l as CaCO3 110.6 618 , Piezometric amuI Elevation . - msl ; : Date !:.* 09 MAR 2004 10 2 558 10131 8.7 4320.8 22JUN 2004 10.3 549 98 5 8.S 4321.0 09AUG 2004 10.5 558 99.1 8.7 4321 0 16NOV2004 10.2 555 107.7 S9 4322.0 DM15 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. :.54 -J COGEMlA Mlining Inc. NRCDEQ2REP Mine Unit 9 WellI.D. DM16 IRIGARAY RANCH INTERIOR DEEP SAND MONITOR WELL 2004 _ Water Quality Chloride Parameters Units Upper Control Limit mg/I Specific Conductance p nmholcm Total Alkalinity 646 III 15.7 Uranium pHi mg/I as CaCO3 mg/l Piezometric Elevation msl Date 09 MAR 2004 10 4 562 94 6 22 JUN 2604 10 4 552 93 0 68 4323 2 09 AUG 2004 103 561 91 2 S7 4323 4 16 NOV 20)04 10 2 556 965 89 4324 0 * Values Exceed Upper Control Limit 4322 6 88 DM16 Negative U308 Grades Indicate Less Than Detection Limit. 55 COGEMA Mining Inc. NRCDEO2REP Mine Unit 5 Well I.D. DM17 Water Quality .Parameters Units Upper Control Limit IRIGARAY RANCH INTERIOR DEEP SAND MONITOR WELL Chloride mg/l Specific Conductance II mho/cm 15 Total Alkalinity 2004 Uranium pH :.- mg/ as CaCO3 618- 108.2 . . Piezometric . Elevation mg/l . msl , .- Date 14JUN 2004 3.9 531, 115.6 03 AUG 2004 9.2 527 109.0 14 DEC 2004 9.4 525 109.1 4314 0 9E 4314 3 DM17 * Values Exceed Upper Control Limit - 4314 0 Negative U308 Grades Indicate Less Than Detection Limit. .56 ---------------- COGENIA Mining [nc. NRCDE02REP Mine Unit 4 Well I.D. DM18 Water Quality Parameters IRIGARAY RANCH INTERIOR DEEP SAND MONITOR WELL Chloride mgil Units Upper Control Limit Total Alkalinity Specific Conductance 14.5 2004 Uranium pli msl mg/Il mg/l as CaCO3 It mho/cm. Piezometric Elevation 105.6 598 Date 17 NAR 2004 98 525 1025 86 4310 4 23 JLN 2004 la 0 518 96 5 8.7 4310 8 0] AUG 23004 96 521 94 2 8.7 4310 3 14DEC2004 101 521 92 8 88 * Values Exceed Upper Control Limit 43112 DMI8 Negative U308 Grades Indicatc Less Thian Detection limit. 57 it- COGEMA Mining Inc. NRCDE02REP IRIGARAY RANCH INTERIOR DEEP SAND MONITOR WELL Mine Unit 3 Well I.D. DM19 * Water Quality .Parameters Units Upper Control Limit Chloride mg/l . Total Alkalinity Specific Conductance 31.7 ,1 pmho/cm mnmg/l as CaC0 3 1207. 245.3 2004 Uranium pH . Piezometric Elevation msl mg/l -- Date 17MAR2004 9.9 505 IO MAY 2004 9a 510 03 AUG 2004 96 499 .S, 4289.0 120 2 - * Values Exceed Upper Control Limit 117.2 96 4291.5 118.7 a95 4291.5 DM19 Negative U308 Gradcs Indicate Lcss Than Dctection Limit. 58 COGEMIA Mining Inc. NRCOEO2REP Mine Unit 3 Well I.D. DM20 Water Quality Parameters Units Upper Control Limit IRIGARAY RANCH INTERIOR DEEP SAND MONITOR WELL Chloride Total Alkalinity Specific Conductance mg/Il 17.5 , mho/cm 2004 Uranium pH mg/I as CaCO3 609 PiezometricElevation mg/I risl 135.6 Date 17MAR2004 92 511 1009 86 4309 0 10MAY 2O04 98 516 1049 86 4313 3 03 AUG 2004 93 506 1021 86 4313 5 28 DEC 2t04 96 514 92 8 86 * Values Exceed Upper Control Limit 4312 0 DM20 Negptive U308 Grades Indicate Less Than Detection Limit. 59 COGEMA Mining Inc. NRCDE02REP IRIGARAY RANCH INTERIOR DEEP SAND MONITOR WELL. Mine Unit 7 Well I.D. DM21 Water Quality Parameters Units Upper Control Limit Chloride mg/i . Total Alkalinity Specific Conductance ; ;Prmho/cm .anium - Piezometric U I i m . Elevation pH . mg/l --mg/lasCaC0 3 628 15.6 2004 - msl . 126.7 '. : Date - 09 MAR 2004 10.2 549 . . 96.4 88 4318.8 14 JUN 2004 10.7 547 ; 958 88 4317.3 09 AUG 2004 9-9 551 90.8 86 4317.5 07 DEC 2004 10.2 544 87.5 88 * Values Exceed Upper Control Limit 4320.1 I... Negative U308 Grades Indicate Less Than Detection Limit. -60 . DM21 COGENMA Mining Inc. NRCDE02REP IMine Unit 6 Well l.D. DM22 Water Quality Parameters IRIGARAY RANCH INTERIOR DEEP SAND MONITOR WELL Chloride Units Upper Control Limit Total Specific Conductance mg/l Alkalinity ptmho/cnt Uranium pll Piezometric Elevation mg/l mg/l as CaCO3 654 15.1 2004 msl 117 Date 10MAR 2004 97 534 95 3 8.7 4316 7 IJJUN 2004 10.1 532 951 86 4316 5 03 AUG20A4 9 5 529 92 I 86 4317 0 03 DEC 2004 96 532 89 3 88 4318.1 * Values Exceed Upper Control Limit DM22 Ncgativc U308 Grades Indicate Less Than Detection Limit. 61 - - CHRISTENSEN RANCH PROJECT Perimeter Ore Zone Monitor Wells COGEMA Mining Inc. NRCDE02REP Mine Unit 3 Well I.D. MW17-2 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL mg/l Units Upper Control Limit Total Alkalinity Specific Conductance Chloride ,. 13.4 - p mho/cm ' 2004 Uranium pH mg/i ; mg/l as CaCO3 777 . Piezometric Piezometric Elevation msl 129.7 Date 1AN 2004 9.4 674 95.7 10 FED 2004 95 666 960 15 MAR 2004 9.5 662 95.1 8.7 4493.5 06 APR 2004 96 674 967 37 4508.4 03 MAY 2004 9.7 665 93.2 S's 4501.2 I I UN 2004 9.4 659 95 B 8.7 4485.2 12 1UL 2004 97 657 95.4 t.7 4499.3 10 AUG 2004 9.3 660 94.1 t9 4493.9 21 SEP 2004 97 656 95 3 05 OCr 2004 9.6 652 95 2 U * 4503.8 4503.7 4499.6 36 4510.0 . MW17-2 Values Exceed Upper Control Limit Negative U308 Grades Indicatc Less Than Detection Limit. 62 NRCDE02REP Mine Unit 3 WcIII.D. MWI8 Water Quality Parameters COGEIAA Mining Inc. CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Total Alkalinity Specific Conductance mg/l t mho/cm. mg/l as CaCO3 777 129.7 13.4 2004 P 1l Uranium Piezomnetric Elevation mg/I msl Date 12JAN 2004 95 673 95.9 a5 4503 1 09 FEB 20)4 9.5 671 95 6 87 4502 9 IS MAR 21004 94 661 992 S6 4489 8 05 APR 2004 99 670 960 8.5 4501.1 03 MAY 2)104 97 669 96 5 A.4 4483 1 36 JUN 20(34 95 656 94 4 55 4491 6 19JUL 2004 98 661 92 7 86 4496 6 09 AUG 2004 96 656 906 05 4498.1 21 SEP 20C4 94 660 92 6 d6 4501.5 06 OCT 20)4 94 658 93 5 86 * Values Exceed Upper Control Limit 4509 9 MW18 Ncgativc U308 Grades Indicate Less Than Detection Limit. 63 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 3 Well I.D. MW19 * Water Quality -. Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit mg/l Total . Alkalinity Specific Conductance .- nimho/cm 13.4 .2004 Piezometric Uranium pH ; mg/l as CaCO3 777 129.7 .Piezometric Elevation msl mg/l , Date - - 12 JAN 2004 10.4 684 1056 8.3 4501.5 10 FEB 2004 10.6 68I 107.7 S4 4501.0 15MAR 2004 9B 672 100.1 85 496.8 05 APR 2004 9B 675 98.2 85 4501.6 10 MAY 2004 98 674 97.8 85 4488.2 16 JUN 2004 95 656 96.2 84 4496.9 14 JUL 2004 9.7 650 948 8.7 4514.6 09 AUG 2004 9.6 661 92.1 84 4500.2 22 SEP 2004 9.3 656 93.7 85 4503.5 06 OCT 2004 94 658 S 95 5 8.4 * - .. 4513.9 - MWI9 .*Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Dctection Limit. .-,64 COGENIA Mifining Inc. NRCDEO2REP Mine Unit 3 Well I.D. MW20 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Total Alkalinity Specific Conductance mgil jn mho/cm 13.4 2004 Uranium p11 mg/l as CaCO3 777 Piezometric Elevation mgil msl 129.7 Date 12JAN 2004 10 1 674 1029 09 FEUB204 96 671 1017 15 MAR 2004 96 662 1016 8.5 4493 2 05 Al'R 2004 93 674 98.5 85 4496 5 03 MAY 2304 94 673 100 0 84 4491.5 16JUN 2004 96 659 102 2 84 4501 4 14JUL2O14 94 655 99 3 86 4501 9 09 AUG 2104 95 665 97 0 84 4501 9 21 SEP 2004 101 663 In 5 06 OCT 2004 92 662 98 6 * Values Exceed Upper Control Limit 84 4500 9 8.6 4501 3 4503 7 87 4510 4 85 MW20 Negative U308 Grades Indicate Lcss Than Dctcction Limit. 65 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 3 Well I.D. MW23 : Water Quality . Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Total Alkalinity Specific Conductance ms/l p---ho m Uranium pH IPiezometric U Elevation mg/I ,,'mgmlasCaC0,3 msl . 129.7 777 13.4 2004 Date 12JAN 2004 10.1 670 101.3 8.5 4496 6 09 FEB 2004 98 670 95.8 8.6 4497.6 15 MAR 2004 95 666 97.1 8.5 U85.2 05 APR 2004 9.7 673 97.0 8.5 4479.1 O0MAY 2004 10.5 670 103.3 8.4 4492.2 15JUN 2004 9.5 662 97.3 84 4503.1 14JUL 2004 9.7 647 97.0 8.5 09 AUG 2004 10.0 662 93 8 84 21 SEP 2004 96 663 96.3 84 06 OCT 2004 96 659 95 a 84 . * Values Exceed Upper Control Limit 4504.3 *- 4506 6 4509.6 ,. Negative U308 Grades Indicate Less Than Detection Limit. ,..66 4506 3 MW23 -ii- COGEMA 'Mining Inc. NRCDE02REP Mine Unit 3 Well I.D. MW24 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Units Upper Control Limit Total Alkalinity Specific Conductance mhotcm mg/i as CaCO3 777 129.7 ti 13.4 2004 Uranium pH1 Piezometric Elevation mg/I rnsl Date 12JAN 2(t4 95 659 879 827 4521 9 09 FEB 2(4)4 10 1 662 91 8 88 4527 4 15 MIAR2004 97 660 94 6 86 4501 7 05 APR 2004 98 668 94.5 86 4467.1 OJMAY Z(X)4 96 664 92 7 85 4490 1 15JUN 2004 9.7 651 91 3 86 4513 1 14JUL2034 101 649 904 87 4546 6 09AUG2904 96 665 874 86 4545 3 21 SEP 2(04 95 652 906 85 4517 2 06 OCT 2004 97 650 91.7 85 4506.7 * Values Exceed Upper Control Limit MW24 Negative U308 Grades Indicatc Lcss Than Detection Limit. 67 COGEMA Mining Inc. NRCDE02REP Mine Unit 3 Well I.D. MW25 I Water Quality CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL .Chloride Parameters Units Upper Control Limit mg/il Total -Total, Alkalinity Specific Conductance ,r ,. 13.4 .ttmho/cm C23 r. mg/las CaCO '777 . 2004 Piezometric , Piezomnetric .. Elevation Uranium' pH , mg/il 129.7 :, ,. - . ' msl - ,- - , Date' 122AN 2004 10.4 669 998, 8.4 4490.8 09 FEB 2004 10.2 671 00.2 16 4485.9 15MAR 2004 9.7 660 946 . 8.5 4484 6 05 APR 2004 9.3 666 953 3.5 u75.0 03 MAY 2004 9.3 664 95 5 34 485.8 ISJUN2004 9.5 651 93.4 35 4500.7 14JUL 2004 20.0 634 96.4 09AUG2004 97 656 90.1 21 SEP 2004 9.3 657 06 0Cr 2004 9.9 655 * 4503.1 86 84 , . 4506.1 8.4 95.3 Values Exceed Upper Control Limit 4506.5 .. S4 ; Negative U308 Grades Indicate Less Than Detection Lirnit. '768 I MW25 4509.2 COGENIA NMining Inc. NRCDO02REP Minc Unit 3 Well l.D. MW26 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Total Alkalinity Specific Conductance mg/I mg/ ii mholcm 13.4 777 2004 Uranium pll as CaCO3 Piezometric Elevation msl mg/i 129.7 Date 121AN 2004 97 664 91 3 84 4488 4 09 I:EB 2004 10.1 661 95 2 86 4485.1 15 MAR 2004 100 659 95 6 85 4486 2 05 APR 21))4 98 667 91 8 03 MAY 2004 102 600 93 7 a 65 44S0 1 15JUN 2004 99 649 93 S 85 4497 6 14 JUL 2004 100 637 92.9 86 4503 9 09 AUG 2n04 99 653 098 8.3 4506 0 21 SEP 2004 98 653 92 3 84 4506 5 06 OCT 2C04 9.9 648 892 86 * Values Exceed Upper Control Limit 4477 2 4509.5 MW26 Negative lJ308 Grades Indicatc Lcss Than Detection Limit. 69 COGEMA Mining Inc. ICHRISTENSEN RANCH NRCDE02REP Mine Unit 3 Well I.D. MW27 Water Quality Parameters Units Upper Control Limit 2004 PERIMETER ORE ZONE MONITOR WELL Chloride 1 Total Alkalinity Specific Conductance mg/l -migmho/cm 13.4 pH .,mg/l as CaCO3 Uranium Piezometric Elevation mg/i msl 129.7 777 Date 121AN2M 10.1 667 93.6 8.4 4488.3 09FEB2004 102 664 95 3 85 4486.7 1SMAR 2004 11.4 663 97.9 85 44s8.1 05 APR 2004 21.s 671 967 85 4482.9 03 MAY 2004 11.9 667 97.7 86 4468.1 is M 10.8 653 92.8 s5 141UL2004 10.9 646 94.4 36 09 AUG 2004 11.0 657 91.2 84 21 SEP2004 10.3 655 92.6 4505.4 060Cr2004 10.9 652 95.0 4509 4 . 4504 6 MW27 *Values Exceed Upper Control Limit Negative U308 Grades Indicatc Less Tlan Dcecction Limit. i 70 4489.1 4493.7 COGEiMA Mining Inc. NRCDEQ2REP Mine Unit 3 Well I.D. MW28 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride m!g I Units Upper Control Limit Total Alkalinity Specific Conductance Uranium pll 777 Piezometric& Elevation nisl mg/l mg/l as CaCO3 It mho/cm 13.4 2004 129.7 Date 12 JAN 201)4 10 2 675 966 85 4488 3 10 FEB 2004 10 2 670 96 8 Ht5 4489 6 15 NtAR 2Zo4 10 4 668 100 1 85 4490 4 05 APR 2004 101 677 97 2 8.4 4497 7 03 MAY 20104 tu4 664 98 6 83 4476 6 16 JUN 20)4 10 0 653 959 84 4491 1 12 UL 2004 10 0 6S0 97 3 N5 4489 t 09 AUG 2004 toI 6S9 94 0 84 4504 9 20 SEP 2004 10 1 715 97 t 85 4506 7 04 OCT 2004 10 0 675 97.7 85 * Values Exceed Upper Control Limit 4510 7 MWV28 Negative U308 Grades Indicate Less Than Detection Limit. 71 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 3 Well I.D. MW29 - Water Quality Parameters Units Upper Control Limit - CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride 1 Total . Specific Conductance mg/l 13.4 . 2004 Alkalinity, . - nmho/cm U -Piezometric . Elevation pH mg/i : mg/l as CaCO3 129.7 777; . * , Date 121AN2004 95 668 979 8.5 4494 2 09 FEB 2004 9.S 667 101.3 86 4493.3 15MAR2004 9.7 661 1004 85 4494 6 05 APR 2004 9.7 669 97.6 85 4503.9 03MAY2004 10.1 662 101.7 86 4479 8 16 UN 2004 95 654 97.0 8.5 44S8 8 12 JUL 2004 9.7 653 98 0 86 4502.3 09 AUG 2004 9.7 658 94 2 8.5 4500.6 22 SEP 2004 9.5 653 967 8.6 4504.S 04 OCT 2004 9.7 649 98.3 8.5 4510.7 * Values Exceed Upper Control Limit I Negative U308 Grades Indicate Less Than Detection Limit. .. 72 MW29 ' COGEMiA Mining Inc. NRCDE02REP Mine Unit 3 Well I.D. MW30 Water Quality CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Parameters Units Upper Control Limit Total Alkalinity Specific Conductance mg/i 13.4 lt mho/cm 2004 Uranium pHl mg/I as CaCO3 777 Piezometric,' Elevation mg/l msl 129.7 Date 12 AN 2004 101 673 105 2 84 09 FFn 2004 99 661 999 85 4498 2 15'MAR 2CO4 95 669 101 I 85 4500 4 05 APR 2004 97 676 100 5 S.5 4499 9 03 MAY 2004 97 672 1028 a6 4495 4 15 IN 4499 6 2004 94 665 101.1 85 4497 2 12JUL 2004 93 662 99 5 85 4500 0 09 AUG 2DW4 94 665 94 9 84 4497.2 20 SEP20C4 95 662 991 85 4502.9 04 OCT 2004 94 656 1000 * Values Exceed Upper Control Limit 85 4512 0 MW30 Ncgative U308 Grades Indicate Less Tlhan Detection Limit. 73 COGEMA Mining.Inc.: NRCDEQ2REP Mine Unit 3 Well I.D. MW31 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH - . PERIMETER ORE ZONE-MONITOR WELL Chloride Total Alkalinity Specific Conductance mg/l p rnho/cm 13.4 ; 2004 pH Uu ' ,.mg/l as CaCO3 777 Piezometric Elevation mg/l msl . 129.7 I I Date 12JAN 2004 9.5 676 992 34 4506.3 09 FED 2004 95 670 98.4 85 4507.0 1SMAR 2004 94 669 100.9 85 4505.3 OSAPR 2004 9.4 677 98 0 S.5 4511.3 03 MAY 2004 9.3 672 993 86 4499.0 I5SJ'N2004 9.7 666 104.S 3.5 4497.6 12JAL 20D4 9.3 660 983 8.5 4J96.5 09 AUG 2004 92 664 943 34 4489 20SEP2004 9.2 661 96.4 35 4500.2 04 OCr 2004 93 654 98 0 a5 4513.2 .; * - MW31 Values Exceed Upper Control Limit Negative U308 Grades Indicatc Less Than Dctection Limit. .: 74 -A- COGENMA Mining Inc. NRCDE02REP Mine Unit 3 Well I.D. MW32 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Total Alkalinity Specific Conductance mg/I p mho/cm 13.4 2004 Uranium p11 mg/l as CaCO3 777 Piezometric& Elevation mg/I msl 129.7 Date 12 JAN 20)4 92 674 1300.3 84 4500 7 10 FEt32014 93 672 1009 86 4510 7 15 MAR 2004 93 667 1014 8.5 45118 05 APR 2004 93 678 100 5 8.7 4516 7 O0MAY2004 90 671 98 4 86 4513 8 15JUN 2004 9 1 662 1034 8.5 4509 7 14JUL 2004 92 658 98 9 06 4492 0 09 AUG 2CO4 9.4 650 101 9 85 4483 1 22 SFP 2004 9.1 658 999 86 4495 5 05 DCT 2094 93 663 1007 86 * Values Exceed Upper Control Limit 4514 1 MW32 Negative U30S Grades Indicate less llTan Dctcction Limit. 75 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 3 Well I.D. MW35 .: . Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL mg/l Total Alkalinity Specific Conductance Chloride . 13.4 _ mho/cm . 2004 msl mg/i mg/l as CaCO3 777 . Piezometric . Elevation Uranium pH - .129.7 Date 13 JAN 2004 12.1 690 1390 10FEB 2004 11.4 669 1334 AR 2004 10.7 594 05 APR 2004 OSMAY 0 3. 2004 98 . 8.5 4s08s 4 a5 4511.2 232.7 8.5 4503.6 603 136.1 9.4 604 1346 6 JUN 2004 9.7 606 133.3 12 JUL 2004 12.7 662 132 1 3.6 3.6 8.4 8.6 09AUG2004 20.2 619 230.5 S.5 21 SEP 2004 13.2 687 1364 .. OCTr2004 12.7 685 134 3 8.4 8.5 -15 * -. 4513.3 . . 4505.7 4508 2 4490.5 . . 4477.6 .44944 4512.6 MW35 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. - .76 -A-. COGENIA Mviniing Inc. NRCDE02REP Mine Unit 3 Well I.D. MW36 CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL 2004 _ Water Quality Parameters Chloride Units Upper Control Limit Total Alkalinity Specific Conductance mg/I 13.4 pEI mig/I as CaCO3 [tIiho/cm 777 Uranium Piezometric Elevation mg/I msl 129.7 Date 111AN 2004 9 7 677 105S 85 4513 3 10 FEB 2004 94 671 99 6 8.5 4514 8 15 MAR 2,)04 94 666 l0W5 8.5 4510 5 05 APR 2OJ4 94 677 101 0 86 4517.3 03 MAY 2,)4 94 671 100 4 8.5 4511.7 16JUN 20) 94 661 102.3 83 4506 8 12JUL 2004 93 658 989 85 4494 3 09 AUG 2004 93 656 99 5 h4 4487 9 22 SEP 2004 92 659 98 2 S5 4501 0 05 OCT 20J4 9 3 660 994 85 * Values Exceed Upper Control Limit 4516 4 MW36 Negative U308 Grades Indicate Less Than Detection Limit. 77 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 3 Well I.D. MW37 - Water Quality Parameters ' Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Total Alkalinity Specific Conductance - rL! rnho/cm ; mg/l as CaC 3 777; 13.4 : 2004 Uranium pH Piezometric Elevation msl mg/l . 129.7 Date 13 JAN 2004 12.9 695 1060 8.5 4506.1 10FEB 2004 12.6 690 105.3 8.4 4507.1 IS MAR 2004 12.7 682 107.6 8.4 4502.7 05 APR 2004 11.9 688 104.0 86 4510.3 0 MAY 2004 O 11.1 680 101.6 8.5 4506.5 16 JUN 2004 300 665 100.1 8.4 4497.4 12JUL 2004 10.4 664 102.6 J5 4489.2 09 AUG 2004 10.4 661 1000 84 4484.3 22 SEP 2004 10.4 665 1004 a5 4495.1 05 OCT 2004 104 668 100.7 8.5 4510.9 , , * Values Exceed Upper Control Limit :MW37 Negative U308 Grades Indicate Less Than Detection Limit. -78 COGENIA NMining Inc. NRCDEQ2REP Mine Unit 3 Well I.D. MW38 CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL 2004 -. Water Quality Parameters Chloride mg/l Units Upper Control Limit Total Alkalinity Specific Conductance mg/l mg/i as CaCO3 [I mho/crn 13.4 Uranium pll 777 Piezometric Elevation msl 129.7 Date 12)AN 2(04 93 671 1026 36 4503 1 09 FEt3 2004 93 670 102.9 87 4504 0 15MAR 2004 9S 667 1018 86 45017 05 APR 2(04 99 675 1013 85 4503.4 03 MAY 2004 10 0 668 I'll 8 36 4500 9 15JUN 2004 99 662 1040 7.9 4502 7 12JUL 2004 96 662 91)7 X4 4491 7 09 AUG 2004 93 667 95 5 K3 44S53 20 SEP 2014 9' 663 1001 K.5 44954 04 OCT 2004 94 662 1028 B5 4510 9 * Values Exceed Upper Control Limit MW38 Negative U308 Grades Indicatc Lcss Than Detection Limit. 79 ~~ COGEMA Mining Inc. NRCDEQ2REP Mine Unit 3 Well I.D. MW39 CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL, 2004 I Water Quality . - Parameters Chloride mg/l Units Upper Control Limit Total Alkalinity Specific Conductance - _,pmho/cm :; mg/iasCaC0 3 msl mg/l , ,. ; 129.7 777 13.4 Piezometric UElevation pH .. : Date 131AN2004 9.5 676 99.7 8.6 4502.2 09 FEB 2004 98 673 1065 8.7 4502.5 1SNIAR2004 9.7 669 100.4 85 4500.8 05APR 2004 10.0 674 99.1 86 4508 3 03 MAY 2004 9.7 669 984 86 4501 2 15 NIN 2004 100 662 102.9 86 121JUL2004 9.9 660 1004 86 09AUG 2004 9.9 664 967 a5 4486.1 20SEP 2004 9.9 661 99.7 86 4497.3 040CT2004 9.7 661 99.6 * 4504 2 * 1 4511.4 86 MW39 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Dctection Limit. .80 4493.5 COGEMA Mining Inc. NRCDEO2REP Mine Unit 3 Well I.D. MW40 Water Quality . Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Specific Conductance .tmho/cm Total Alkalinity 777 129.7 13.4 2004 Uranium pH mg/I mg/I as CaCO, Piezo e c Elevation. msl .- Date 12 IAN 2004 96 676 102.2 8.6 4501.3 10FEB 2C04 9.5 669 99.1 8.6 4500 8 15MAR 2004 9.3 669 9t.4 8.5 4500.6 05 APR 2004 94 676 97.4 85 03 MAY 2004 96 671 99.6 a86 4506.7 4500 8 15 JUN 2004 9.4 661 95.9 8.6 4503.7 12 J'L 2004 9.5 655 94.7 8.7 4494.4 09 AUG 2004 9.5 658 911 86 4489 8 22 SEP 2004 9.7 652 95.2 a88 4498.4 05 OCT 2004 9.7 653 95.9 889 45116 * Values Exceed Upper Control Limit MWV40 Negative U30S Grades Indicate Less Than Detection Limit. "- I 81 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 3 Well I.D. MW41 Water Quality Parameters Units Upper Control Limit *CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Total Alkalinity Specific Conductance mg/l pt mho/cm 13.4 777 2004 Uranium pH mg/l mg/las CaCO3 129.7 . Piezometric Piezomnetric Elevation .. . msl : Date 12tAN2004 94 680 103.7 3.5 4510.2 lOFEB 2004 9.3 678 103.S S6 4514.4 15MAR2004 91 674 102.9 35 4516.1 05 APR 2004 93 682 103 7 8.7 4519.4 10 MAY 2004 9.3 676 1049 36 4515.9 IS JUN 2004 9.0 666 103.5 35 45166 14 JUL 2004 9.5 666 1067 S6 4501.2 10AUG2004 9.2 667 102.5 36 4487.0 22SEPt2004 9.3 662 103 9 8.6 4496 5 05 OCr 2004 9.2 670 102.5 8.6 4515.9 * Values Exceed Upper Control Limit MW41 Negative U308 Grades Indicate Less llan Detection Limit. . 82 COGEMA Mining 1i.i NRCOEO2REP Mine Unit 3 Well I.D. MW42 ' Water Quality - Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Total Alkalinity Specific Conductance mg/l 1gmho/cm 13.4 2004 Uranium pH mg/I as CaCO3 777 Piezometric Elevation mg/l msl 129.7 Date 12JAN 2034 93 668 1004 10 FEB 2004 92 666 1006 S6 4519.5 15 MAR 2004 9.4 662 999 8.6 4520.2 06 APR 2C04 9.4 672 101.7 8.7 4522 1 10 MAY 2004 9.3 666 100.9 S.7 4520.3 15JUN2DO4 9.1 658 101.2 3.5 4521.3 14JUL 2t)04 93 660 936 S.7 4510.3 IOAUG2(004 9.3 660 99.5 36 4490.9 22 SEP 2014 91 655 99.7 36 4500 4 05 OCT 2004 92 653 99.7 S6 4518 0 * Values Exceed Upper Control Limit 3.5 4510.1 MW42 Negative U308 Grades Indicate Less Than Detection Limit. 83 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 3 Well I.D. MW43 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL , Chloride J Total . Alkalinity Specific Conductance mg/i ,umho/cm 13.4 . 2004 Piezometric - - Elevation pH .-mg/lasCaCO3 777. mg/l Msl . 129.7 Date I2JA.N2004 9.5 669 103.2 8.4 4511.2 10 FEB 2004 9.2 666 101.2 85 4523.4 15MAR 2004 9 4, 662 101.1 8.5 4524 2 06APR2004 9.1 672 100 5 86 4524 9 10 MAY 2004 9.2 665 100.2 86 4524 2 15 JUN 2004 9.2 655 1002 8.4 4525.2 19JIJL2004 9.1 658 95.0 09 AUG 2004 9.3 652 101.5 8.5 4509.6 22 SEP 2004 9.2 655 100.7 8S5 4506.2 05 Ocr 2004 9.3 659 100.8 8.5 4520.3 * Values 4516.9 M MW43 Exceed Upper Control Limit Negativc U308 Grades Indicate Less Than Detccion Limit. [84 COGEMA Mining Inc NRCOEQ2REP Mine Unit 3 Well I.D. MW44 Water Quality CHRISTENSEN RANCH' PERIMETER ORE ZONE MONITOR WELL --- Chloride Parameters Units Upper Control Limit mg/i Total: Alkalinity Specific, Conductance mho/cm 13.4 r Uranium . , pH Piezometric Elevation msl mg/l mg/I as CaCO3 777 2oo4- 129.7 Date IIJAN 2004 9.5 673 996 84 4507.5 IOFEB 2004 9S 669 989 8.4 4510.3 ISMAR2004 9S 66S 96.9 3.4 4511.4 05APR 2004 9.4 673 96.9 8.5 4512 0 10MAY 2004 9.5 66B 99.4 8.4 4508.3 16)UN 2004 9.3 658 97.0 83 4510 5 12JUL2004 9.4 65S 96.3 O9AUG 2004 9.3 656 95S. 8.4 4489.7 21SEP 2004 94 660 95.9 8.3 4493.6 05OCT 2004 94 661 98 34 4509.9 Values Exceed Upper Control Limit 8.5 4497.5 MW44 Negative U308 Grades Indicate Less Than Detection Limit. K 85 COGEMA Mining Inc. NRCDE02REP CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL, Mine Unit 3 Well I.D. MW45 I Water Quality Chloride Parameters Units Upper Control Limit mg/I . Total Alkalinity - Specific Conductance mg/l l mho/cm 13.4 ,, 777, 2004 .I . ppH as CaCO3 msl . Date * I3 IAN 2004 94 674 10 FED 2004 9.5 671 15 MAR 2004 9.7 668 05 APR 2004 9.4 676 03 MAY 2004 9.4 672 16 JUN 2004 9.3 65 8 . . 12 JUL 2004 9.4 662 - 09 AUG 2004 9.3 65S 21 SEP 2004 9.2 661 05 OCT 2004 9.4 662 .. ... 4509.3 99.7 8.5 985 8.5 101.6 8.5 II.1 98 7 86 * 99.4 85 97.2 84 4512.4 4513.5 .4514.3 4508.7 I ' 4511.0 999 - 8.5 4544.3 98 2 84 4482.1 96.2 83 4494.3 97.4 8.4 4508.9 MW45 * Values Exceed Upper Control Limit Negativc U308 Grades Indicatc Less Than Detection Limit. : 86 ' Piezometric Elevation Uranium mg/l 129.7 . COGEM:A Mining Incf. NRCDEQ2REP Mine Unit 3 Well I.D. MW62 Water Quality., Parameters Units Upper Control Limit CHRISTENSEN RANCH" -PERIMETER ORE ZONE MONITOR WELL -- Chloride Total Alkalinity Specific Conductance mg/I 13.4 Uranium pH mg/I as CaCO3 mho/cm jp 777 ' 2004 ..... _,'; '!......... :i ' Piezometric Elevation mg/l msl 129.7 Date 12)AN 2004 9.4 667 89.1 09 FEB 2004 9.4 674 91.3 15 MAR 2004 9.7 662 93.0 899 45200 06 APR 2004 9.5 671 91.6 90 4518.7 IOMAY 2004 9.7 671 97.3 90 4517.4 16 1UN 2t004 9.4 662 94 6 8.9 4519.2 12JUL2004 9.2 657 94.7 9t 4508.7 IOAUG '004 9.5 667 95 4 90 4501.6 22 SEP 2004 9.5 660 969 89 4501.7 05 OC 2004 99 663 966 8.9 4516.9 * Values Exceed Upper Control Limit 8.9 4514.4 9.2 4517.5 MW62 Negative U308 Grades Indicate Less ltan Detection Limit. 87 COGEMA Mining Inc.. NRCDEO2REP Mine Unit 3 Well I.D. MW63 .Water Quality CHRISTENSEN RANCH , PERIMETER ORE ZONE MONITOR NVELL Chloride I Parameters mg/l Units ; Upper Control Limit Total Specific Conductance - !. mg/l as CaCI 129.7 777 13.4 Uranium pH Alkalinit y' p mho/cm 2004 I. Piezometric Piezometric Elevation !' msl ; mg/l 3 .1 I . . . ., . - Date I. -. .*. . 4515.9 I12AN2004 9.1 670 952 S6 09 FEB 2004 92 66S 940 S7 16 MAR 2004 93 664.. 96.6 87 06 APR 2004 91 668 92.2 S9, 10 MAY 2004 9.2 663 92.7 88 16 MUN2004 94 655 95.4 S.7 4523.I 12 JUL 2004 9.4 649 94 2 S9 4513.9 10 AUG 2004 90 650 92.3 8.9 4499.1 9.1 657 94.5 8.7 4504.7 9.4 663 990 8.6 * 22 SEP 2004 05 OCT 2004 .; . 4520.4 .- . 4522.7 * -: ..-4521.3 4518.5 - MW63 * Values Exceed Upper Control Limit Negative U308 Grades Indicate Lcss Than Detection Limit. . 88 4522.0 .. I COGEMA Mining Inc.' NRCDEO2REP Mine Unit 3 Well I.D. MW64 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL -Chloride mg/l Total Alkalinity Specific Conductance ~ Uranium pH Piezoletric Elevation mAs mg/I mg/l as CaCO3 s mho/cm 13.4 2004 129.7 777 Date 12 )AN 2004 92 616 100.7 8.4 09 FEB 2004 S.9 676 99.5 6.4 4526.0 16 MAR 2004 92 671 103.7 6.5 4527.6 06 APR 2004 9.0 67B 1010. 10 MAY 2004 9.1 675 103.2 6.5 4524.2 16JUN 2004 92 665 103.5 6.3 4526.5 12JUL 2004 90 660 103.1 6.5 451S.1 10AUG 2004 S9 66S 1030 6.5 4521.4 22 SEP 20(4 9.1 663 103.0 S.5 4506 0 05 OCT 2004 9.4 669 106.7 84 4514.9 S6 *525 6 4521.9 * MW64 * Values Exceed Upper Control Limrit Ncgative U308 Grades Indicate Less Than Detection Limit. K> 89 COGEMA-Mining Inc. NRCDEQ2REP Mine Unit 2 Well I.D. MW73 Water Quality Parameters CHRISTENSEN RANCH . PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Total Alkalinity Specific Conductance mg/l p mho/cm 13.6 823 ,mgl as CaCO 3 2004 Uranium pH .. Piezometric . Elevation mg/ msl 121.3 t Date 06 IAN 2004 9.9 673 992 9.0 03 FEB 2004 9.6. 676 96.7 89 4485.1 08 MAR 2004 9.8 661 95.8 8.8 4498 3 07 JUN 2004 10.1 665 100.7 88 4507.8 07 SEP 2004 9.6 655 92.0 8.9 450S.1 13DEC 2004 93 660 869 8S 4524 0 * Values Exceed Upper Control Limit 44SS.8 MW73 Negative U308 Grades Indicate Less Than Detection Limit. L :90 COGEMA- Mining Inc. NRCDEQ2REP Mine Unit 2 Well I.D. MW74 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE: ZONE MONITOR WELL Chloride Total Alkalinity Specific. Conductance mg/l l' mho/cm 13.6 Uranium pH mg/l as CaCO3 823 2004 ;; - Piezometic Elevation mg/l msl 121.3 Date 06 JAN 2004 9.7 664 97.0 t.9 "82.3 03 FEB 2004 10.0 655 87.4 9.5 4478.6 Ot MAR 2004 9.7 662 93.9 8.7 4490.0 07 1BN 20C4 96 667 97.6 8.S 4509.4 01 SEP 2004 9.4 658 9t.0 8.9 4510.4 I1 DEC 2004 9.4 665 S9.9 9.0 4524.2 * MW74 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 91 COGEMA Mining Inc. NR COEQ2REP Mine Unit 2 Well I.D. MW75 Water Quality . Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Specific Conductance uImho/cm n Total Alkalinity ;,7mg/lasCaCO3 823: 13.6 . 2004 Ua . . Piezometric I. Elevation pH . mg/l 121.3 msl ;Is Date 06 JAN 2004 92 676 995 27 03 FEB 2004 9.5 675 99.7 16 0 9.7 669 100.5 07JtN2004 9.3 669 94.4 26 4509.7 07SEP2004 9.4 661 97.6 8.7 4511.3 13DEC 2004 29 676 85.7 MAR2004 . 4468.7 4496.0 27. 4522.6 MW75 -* Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. ; 92 4472.6 COGEMA Mining Inc. NRCDE02REP Mine Unit 2 Well I:D. MW76 - Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Total Alkalinity Specific Conductance mg/Il p mho/cm 13.6 * 2004 Uranium pH mg/l as CaCO3 823 - Piezometric Elevation mg/i mOs 121.3 Date 06JAN2004 8.9 696 97.2 8.7 4477.3 03 FEB 2004 9.1 690 98.I 8.6 447n.9 CS MAR 2004 9.4 679 9S.2 82 4499.1 07 JUN 2004 8.6 699 94 0 86 4512.3 08 SEP 2004 8.6 702 95.3 8.7 4513.1 13 DEC 2004 S.2 727 85.7 86 4523.5 * Values Exceed Upper Control Limit MW76 Negative U308 Grades Indicate Less Than Detection Limit. 93 COGEMA Mining Inc. NR CDE02REP Mine Unit 2 Well I.D. MW77 Water Quality . Parameters - CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL ; Chloride :.mg/I Units Upper Control Limit Total Alkalinity Specific Conductance . 13.6 - mho/cm mg/iasCaCO3 823. 121.3 .2004 I Piezometric . . Elevation Uranium pH msl - mg/l Date 752 96.1 S.5 4475.0 726 98S 4477.5 F.7 733 98.3 S.5 7.4 07 JUN 2004 S.4 730 929 8.4 4512.6 07 SEP2004 S.3. 722 94 5 13DEC 2004 1.0 730 866 06 JAN 2004 S 03 FEB 2004 S os MAR 2004 * 3 . - 4498.7 . S4 . * .1 MW77 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Dctcction Limit. * 94 4513.7 4521.6 . I COGEMA Mining-lnc. CHRISTENSEN RANCH: NRCDEQ2REP Mine Unit 2 Well I.D. MW78 Water Quality Parameters PERIMETER ORE ZONE MONITOR WELL: Chloride mglI Units Upper Control Limit Total Alkalinity Specific Conductance mho/cm mg/i as CaC0 3 823 121.3 .t 13.6 2004; ': pH Uranium Piezometric Elevation mg/i msl Date 06 JAN 2004 9.5 675 990 8.6 U77.0 03 FEB 2004 9.5 674 992 85 4476.1 08 MAR 2004 10.0 669 99.3 85 4495 8 07 JUN 20104 9.2 680 94.1 as5 4509.6 08 SEP 2004 9.2 6S6 97.2 86 4512.0 14 DEC 2004 B.7 690 92.4 86 * Values Exceed Upper Control Limit 4520.6 MW78 Ncgative U308 Grades Indicate Less Than Detection LimiL 95 COGEMA Mining Inc. NRCOEQ2REP Mine Unit 2 Well I.D. MW79 . . Water Quality .. Parameters CHRISTENSENRANCH PERIMETER ORE ZONE MONITOR WELL mg/l Units Upper Control Limit Total . Alkalinity Specific . Conductance Chloride . ,u rnho/cm Urau , .Piezometric Uranium" . Elevation . mg/l :,mgA as CaCO3 823 f 13.6 2004 . msl 121.3 Date 101 0 8.5. 98 4 85 , 94.4 J.5 719 t 92.4 84. 8.7 - 714 . 97.3 8.5 B3 719 92.E 85 06 JAN 2004 9.3 711 03 FED 2004 9.2 695 08 MA R 2004 84 721 07 JUN 2004 S6 08 SEP 2004 14 DEC 2004 - , I* Values Exceed Upper Control Limit 4468.5 ... ; :96 4496.5 t I.; Negative U308 Grades Indicate Less T7an Detection Limit. 4478.0 . .. 4509.5 4512.0 ... 45188 I MW79 COGEMA Mining Inc. NRCOEQ2REP Mine Unit 2 Well I.D. MW80 CHRISTENSEN RANCH;` PERIMETER ORE ZONE MONITOR WELL .1 - i. -2004 , -.. ;; . ;,- -. * Water Quality.. Parameters Units Upper Control Limit Chloride Total Alkalinity Specific Conductance mgll , mholcm 13.6 Uranium pH mg/l as CaCO3 823 Piezometric Elevation mg/I msl 121.3 Date 061AN 20u4 9.4 677 98.4 86 4478 0 03 FED 2004 9.5 675 99.1 8.5 4486 4 0OMAR 2004 9.3 673 97.1 S.5 498.I 07 JUN 2004 9.2 678 927 84 4508 4 07 SEP 2004 94 667 98.5 84 4511.3 14DEC 2004 86 6U4 856 85 4516.6 * Values Exceed Upper Control Limit MW80 Negative U308 Grades Indicate Less Than Detection Limit. 97 1 COGEMA Mining Inc., NR CDEC2REP Mine Unit 2 Well I.D. MW81 Water Quality . Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/I Units Upper Control Limit Total Alkalinity - Specific Conductance rnmho/cm r mg/lasCaCO3 823. . 121.3 ; 13.6 . : - .I " : mg/I - . msl ,I 4 -. Date 06 JAN 2004 9.4 6S2 980 96 . 03 FEB 2004 95 677 9S I 95 I 0OMAP 2004 96 672 9S 6 9.5 07 JUN 2004 9.7 672 96.3 S.5 07 SEP 2004 9.5 663 9t9 S.5 14 DEC 2004 9.1 669 96.9 86 , 496.2 4491.4 ,,. 4500.5 4510.4 * Negative U308 Grades Indicate Less Tlan Detection Limit. ; 98 . 4512.5 4516 6 MW81 * Values Exceed Upper Control Limit '. , .Piezometric Elevation Uranium pH .2004 ~ : COGEMA Mining Inc. NRCDEO2REP Mine Unit 2 Well I.D. MW82 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Units Upper Control Limit Conductance Total Total Alkalinity I mg/l as CaCQ3 Specific Specific Chloride mg/ p mho/cm 13.6 823 2004 : Piezometric pH Uranium Pizmti Elevation mg/l msl 121.3 Date 06JAN2004 102 660 96.7 8.5 03 FEB 2004 10.2 659 98.3 84 4491.3 08MAR 2004 9.8 654 92.7 S.5 4497.5 4485 3 O7JUIN2004 98 653 89.3 84 4506.5 07SEP 2004 9.9 647 88.9 8.5 4509.8 13DEC 2004 96 643 S5.9 S.4 * Values Exceed Upper Control Limit 4514 S MW82 Negative U308 Grades Indicate Less Than Detection Limit. 'K),J 99 COGEMA!Mining Inc. NRCDE02REP Mine Unit 2 Well I.D. MW83 . Water Quality . Parameters Units Upper Control Limit - CHRISTENSEN RANCH . PERIMETER ORE ZONE MONITOR WELL .. Chloride mg/l Specific. Conductance . -uho/cm 13.6 Total Alkalinity. rmg/l as CaCO3 823 - 2004 . x . . Piezometric ; Elevation Uranium pH msl mg/i .. 121.3 ; Date I.: .- 4482.5 06 JAN 2004 9.8 664 97.0 86 03 FEB 2004 9.9 666 98 4 8.5 08 MAR 2004 9.8 665 ., - 95.6 86 - 07 1N 2004 9.8 669 _ 93 0 85 II.... 07 SEP 2004 9.5 648 . 87.4 13 DEC 2004 9.2 650 * 83 6 4489.5 .. . - 8.7 4506.3 .45100 - .- * Values Exceed Upper Control Limit 4497.2 . 4514.8 'MW83 Negative U308 Grades Indicate Less Than Detection Limit. / !100 COGEMA Mining Inc. NRCOE02REP Mine Unit 2 Well I.D. MW84 ; Water Quality CHRISTENSEN RANCHPERIMETER ORE ZONE MONITOR WELL " Chloride Parameters Units Upper Control Limit Specific Conductance mg/l 13.6 Total Alkalinity p mho/cm 823 mg/I as CaCO3 121.3 2004 ;: Uranium pH - Piezometric - Elevation mg/I msl Date 06 JAN 2004 98 667 97 S 8.6 4480.7 03 FEB 2004 10.2 665 100.7 8.5 448.3 0 MAR 2004 10.5 664 104.6 '.5 4496 3 07 JUN 2004 91 665 94.4 8.4 4505.9 07 SEP 2004 9.7 657 98 2 8. 5 4509.7 13 DEC2004 9.4 658 90.4 86 * Values Exceed Upper Control Limit 4516 4 MW84 Negative U308 Grades Indicate Less Than Detection Limit. '' 101 COGEMA Mining Inc., NRCOEQ2REP Mine Unit 2 Well I.D. MW85 -i | Water \ Quality -Parameters 'CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL l Units Upper Control Limit . Specific Chloride mgll Conductance ,. I j inhofcm Total Alkalinity, -. Uranium pH , mg/l as CaCO, 823 13.6 ; 2004- Piezometric Elevation mg/l msl 121.3 Date 06 JAN 2004 9.3 663 957 S5 4431.4 03 FEB 2004 9S 663 95.1' 3.3 4439 3 09 MAR 2004 10.2 633 97.2 7.9 4494.6 07 R 10.0 . 660 92.7 8.4 4304.7 07 SEP 2004 30.0 650 92.4 B.5 4508.S 11 DEC2004 9.6; 651 36 t 3.3 4516.0 2004 MW85 * Values Exceed Upper Control Limit Ncgativc U308 Grades Indicate Less Than Detection Limit. 102 COGEMA Mining inc. NRCDE02REP Mine Unit 2 Well I.D. MW86 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Units Upper Control Limit Specific Conductance 13.6 Total Alkalinity- mho/cm i 2004 Uranium pH mg/i as CaCO3 823 Piezometric Elevation msl mg/l 121.3 Date 06 JAN 2004 99 665 95.9 8.5 4477.3 03 FE 99 664 950 8.5 4487.6 0 MAR 2004 10 0 662 961 8.4 4491.5 07 JUN 2004 10 2 660 963 8.4 4503.3 07 SEP 2004 10.1 653 98.3 8.4 4503.1 I3 DEC 2004 9.3 664 * 2(004 88.9 Values Exceed Upper Control Limit 8.4 4516.2 MW86 Negative U308 Grades Indicate Less Than Dctection Limit. 103 COGEMA.Mining Inc. NRCOE02REP CHRISTENSEN RANCH - PERIMETER ORE ZONE MONITOR WELL; Mine Unit 2 Well I.D. MW87 . Water Quality - . Chloride Parameters Units Upper Control Limit mg/l . , Specific Conductance ,; -,imho/cm Total Alkalinity ,:mg/lasCaC0 3 pH Uraniurn - mg/i 121.3 823 13.6 2004 -,..Piezometric ,Elevation msl , 1 - -- . , Date 06LAN 2004 9.8 665 98 3 85 03 FEB 2004 98 665 97.3 84 4486.8 08C R 2004 9.8 659 986 8.4 4488.2 07JUN 2004 10.1 661 969 8.4 4501.7 07 SEP 2004 10 0 653 1007 8.4 9.6 665 88.2 84 3ISDEC2004 * - . 4507.8 .! . .I. Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. ,: .104 4474.3 MW87 451.4 COGEMA Miininglnc. NRCDE02REP Mine Unit 2 Well I.D. MW88 -i' Water Quality. Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Specific Conductance P mho/cm Total Alkalinity 823 121.3 13.6 2004 Uranium pH mg/l as CaC0 3 . Piezometric-J1 .Elevation I mg/l msl Date 06 JAN 2004 93 670 93 6 S.5 U71.0 03 FEB 2004 e0.1 669 104 1 8.4 44U1.4 03 MAR 2004 9.9 66S 99.3 07 JAN 2004 102 663 105.0 S.5 4501.6 01 SEP 2004 99 656 101.7 34 4507.1 13 DEC 2004 91 666 95 0 3.4 4519 2 * Values Exceed Upper Control Limit 44JB.4 MW88 Negative U308 Grades Indicate Less Than Detection Limit. 105 COGEMA Mining Inc. ICHRISTENSEN RANCH NR CDEO2REP Mine Unit 2 Well I.D. MW89 . Water Quality Parameters U Specific Conductance Chloride Units |Upper Control Limit .2004 PERIMETER ORE ZONE MONITOR WELL mg/l mho/cm . 13.6 . Total Alkalinity :- mg/las CaCO, 1_1 823 . Piezometric Uranium' pH Elevation mg/i 121.3 .I msl . . Date 697 107.1 8.5 4472.8 712 108.1 8.4. 4476.0 12.9 697 106.1 1.3 4488.3 07 JUN 2004 11.9 689 108.S 8.4 4499.8 07 SEP 2004 12 6 690 112.2 84 4506.8 13DEC2004 12.5 708 1046 8.4 4521.5 06 )AN 2004 12.2 03 FEB}2004 13.9 08 MAR 2004 * * Values Exceed Upper Control Limit MW89 Ncgativc U308 Grades Indicate Less Than Detection Limit. I106 COGEMA Mining 'In. NRCDE02REP Mine Unit 2 Well I.D. MW90 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit _ieomeri Specific Conductance mg/l i 13.6 Toa Total , Alkalinity 2004' Uranium pH mho/cm mg/l as CaCO 823 121.3 11--l !I Piezometric Elevation mg/l U3 msl Date 06 JAN 2004 9.7 690 99.1 03 FEB 2004 9.5 674 97 S 9.4 44923 OSMAR 2004 9.9 672 993 9.5 4502.1 07 JUN 2004 9.7 671 100.5 9.5 4509.9 07 SEP 2004 92 661 905 96 4512.3 14 DEC 2004 I8 671 S5 S 9.5 45159 * Values Exceed Upper Control Limit 4492 4 MW90 Ncative U308 Grades Indicate Less Than Detection Limit. 107 COGEMA Mining Inc. NR CDEQ2REP CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Mine Unit 2 Well I.D. MW101 Water Quality Parameters Units Upper Control Limit Chloride mg/I .P Specific Conductance v jmho/cm . 2004 ... Total Alkalinity pH ;'mg/l as.CaCO 3 - . . . Piezometric Uranium'- Elevation Elevation. rslm, Alkalinity 778-, 11.6 I mg/l 124.6 Date 06 JAN 2004 9.7 679 99.1 8.4 03 FEB 2004 94 673 95.9 84 Of MAR 2004 10.0 670 99.3 8.5 07JUN2004 9.9 667 97.9 8.5 07 SEP 2004 94 660 89.9 8.6 14DEC2004 9.1 663 84 6 8.5 * Values Exceed Upper Control Limit 4498 0 . 4504 6 4511.2 - t .108 . 4513.5 4515.3 ... Negative U308 Grades Indicate Less Than Detection Limit. 4499.7 MW101 COGEMA Mining-Inc. NRCDE02REP Mine Unit 2 Well I.D. MW102 CHRISTENSEN RANCH PERIMETER ORE ZONE'MONITOR WELL 2004 Piezometric Water Quality Parameters Units Upper Control Limit Chloride Specific Conductance mg/i Total Total Alkalinity mg/I as CaC0 3 pt mho/cm 11.6 Uranium pH 778 mg/l Elevation msl 124.6 Date 06 JAN 2004 9.5 669 94.0 8.4 03 FEB 2t04 96 666 94 4 8.4 4502.5 0 MAR 2004 9.7 672 954 8.5 4504.5 07 JUN 2004 10.1 662 99 0 8.5 45100 07 SEP 2004 94 660 99.3 86 4512.5 14DEC 2t04 92 66. 844 9.2 4513.3 * Values Exceed Upper Control Limit 4499.4 MW102 Negative U308 Grades Indicate Less lTan Detection Limit. 109 COGEMA-Mining Inc., NRCDEO2REP -CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL -. Mine Unit 2 Well I.D. MW103 Water Quality . . Parameters Units Upper Control Limit Chloride mg/i .. Total Alkalinity Specific Conductance - u mhofcm Piezometric Pi ezo me tri c Elevation Uranium pH img/l as CaCO3 mg/ . msl , , : 124.6 778 11.6 2004 . I . I I .. Date * 06 IAN 2004 9.4 672 94.2 8.6 4503.5 03 FEB 2004 95 671 95.1 8.6 4505.1 0 MAR 2004 9.5 665 93.2 8.6 4506 5 -07 AN 2004 9.9 662 96.3 8.6 07 SEP 2004 9.2 656 98.9 87 4510.4 4513.7 14DEC2004 9.1 662 83 4 8.8 * 4514.3 MW103 Values Exceed Upper Control Limit Ncgativc U308 Grades Indicate Less Than Detection Limit. ; 110 COGEMA Mining Inc. NRCDEO2REP Mine Unit 2 Well I.D. MWI04 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Specific Conductance mg/l Total Alkalinity pH mg/I as CaCO3 I. mho/cm 11.6 ;2004 778 Uranium , Piezometric Elevation mg/I msl 124.6 Date 06JAN 2004 92 698 94.7 S.4 4502.4 03 FEB 2004 91 689 949 8.4 4503.8 09 MAR 2004 9.4 682 95 9 S.5 4504.6 07JUN 2014 9.3 682 959 S.5 4509 3 07 SEP2004 9.0 676 88.5 S.5 4511.6 95 685 82.3 S6 4513.5 4J DEC 2004 * Values Exceed Upper Control Limit MW104 Negative U308 Grades Indicate Less Than Detection Limit. 111 COGEMA Mining Inc. Mine Unit 2 Well I.D. MW105 . Water Quality Parameters Chloride mg/l Units Upper Control Limit 2004 CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Specific Conductance Total Alkalinity -*- ; lmhbo/cm 11.6 Piezometric Elevationc. Uranium pH msl mg/l mg/l as CaC0 3 124.6 778 Date 06 JAN 2004 95 673 03 FEB 2004 91 673 08 MAR 2004 99 07 RUN2004 93.1 8.4 8S.1 84 668 93.4 85 9.7 666 94 0 S4 4508.0 0 SEP 2004 96 655,: 942 8.4 4510.5 14 DEC 2004 9.3 669 S44 9.5 * . , 4500.9 4502.8 .... 4503.6 4512.7 - MWI05 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Dctection Limit. * -112 COGEMA Mining Inc- NRCDE02REP Mine Unit 2 Well I.D. MWI06 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Specific Conductance mg/i 11.6 Total Alkalinity 1rmho/cm 2004 pH mg/I as CaCO3 778 Uranium Piezometrici Elevation mg/I msl 124.6 Date 06 JAN 2004 99 670 96.0 8.5 4500.7 03 FEB2004 9a 665 95 4 84 4501.8 08 MAR 2004 9.9 660 93 6 8.5 4502.7 07 J'N 2004 9.7 657 91.6 8.6 4507.3 08 SEP2004 101 648 94.7 8.5 4500.5 14 DEC 2004 94 657 84.5 8.5 * Values Exceed Upper Control Limit 4512.4 MW106 Negativc U308 Gradcs Indicate Less Than Detection Limit. 113 I COGEMA Mining Inc., NR CDEQ2REP CHRISTENSEN RANCH PERIMETER ORE ZONE-MONITOR WELL Mine Unit 2 Well I.D. MWI07 Water Quality Parameters Units Upper Control Limit Chloride . mg/i . Specific Conductance - jtmho/cm 11.6 Total Alkalinity . 2004... ., r-mg/l as CaCO3 778 . mg/l 124.6 .. . ' .; Piezometric '. -Elevation I Uranum pH . - : msl ! :., .-. ; Date ! - 06 JAN 2004 10.1 . 661 96.6 S5 03 FEB 2004 9S 659 93.3 814 08 MAR 2004 10.5, 656 96.2 07 AN 2004 11 0 654 103.1 t6 4508.2 OSSEP 2004 10.1 646 93.4 S5 4511.0 14DEC 2004 9.5 656 140 1-5 * ., 4500.7 4502.1 54 . I Negative U308 Grades Indicate Less Than Detection Limit. 114 4502.6 4513.7 - Values Exceed Upper Control Limit . -. MW107 - !. COGEMA NMining Inc. NR CDEQ2REP Mine Unit 2 Well I.D. MW108 Water Quality Parameters CHRISTENSEN RANCH I PERIMETER ORE ZONE MONITOR WELL Chloride mg/I Units Upper Control Limit Specific Conductance Total Alkalinity mg/l Piezometric Elevation: msl 124;6 778 11.6 Uranium pH mg/l as CaCO3 g mho/cm 2004 ' Date 06 JAN 2004 10 4 655 934 8.5 4493.5 03 FEB '004 10.2 657 91.3 S.5 4500 9 09M.%AR 2004 10 6 659 94.4 86 4502.0 07 JUN2004 10.5 650 94.9 8.5 4507.0 OSSEP2004 103 643 92.7 8.6 4509 1 13 DEC 2004 98 640 85 2 8.6 * Values Exceed Upper Control Limit 4511.5 MW108 Negative U308 Grades Indicate Less Than Detection Limit. '' ,v' 115 COGEMA Mining Inc. - NRCOEQ2REP Mine Unit 2 Well I.D. MW109 Water Quality Parameters -CHRISTENSEN RANCH'. PERIMETER ORE ZONE MONITOR WELL , Chloride Units Upper Control Limit Specific Conductance. mgA - who/cm .p 11.6 Total . Alkalinity 2004 ..I . .I I . mg/l .. 124.6 :. Piezometric . Elevation Uranium pH ;:mg/l as CaCO3 778 - .I - msl .. Date 06 )A. 2004 10 4 S06 904 8.4 03 rEB 2004 102 S07 89.4 84 4499.5 09 MAR 2004 I08 924 87.6 84 4501.3 07 JUN 2004 I0.5 773 878 84 0SSEP2004 103 75S 858 83 13DEC 2004 97 743 792 8.4 * Values Exceed Upper Control Limit - - 116 4497.4 4506.7 . , .- . 4509.5 4312.8 ". Ncgative U308 Grades Indicatc Less Than Detection Limit. . - MW109 COGEMA Mining Inc.i5 NRCDEQ2REP Mine Unit 2 Well I.D. MWIIO Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR, WELL. Chloride mg/ Units Upper Control Limit Specific Conductance Total Alkalinity pH Uramum mg/I as CaCO3 I p mho/cm 11.6 2004 778 mg/l Un Pielometric Elevation msl 124.6 Date 061AN2004 104 653 98.2 3.5 4496 6 03 FEB 2004 10.1 662 970 8.4 "93.1 09MAR2004 10.2 65S 96.5 36 4501.7 07 JUN 2004 99 655 92.4 S.5 4507.6 07 SEP2004 99 643 354 36 4510.6 I3 DEC 2004 9.7 648 81.4 8.7 * Values Exceed Upper Control Limit 4513.0 MWI10 Negative U308 Grades Indicate Less Than Detection Limit. ' 117 COGEMA Mining Inc. NRCDEQ2REP CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Mine Unit 2 Well I.D. MW11I Chloride Water Quality Parameters Specific Conductance. mg/l Units 11.6 Upper Control Limit : omho/cm Total Alkalinity 2004 Uramum' pH ,mg/las CaCO3 778 -.. mg/l Piezometric Elevation , msl -. - - , 124.6 ;II Date . 06 JAN 2004 9.7, 663 96.3 S.5 03 FED 2004 10.0 664 9S6 S,5 09 MAR 2004 10.6 658 1026 3.5 tO O 655 95.7 S4 4506.5 10.6 643 102.3 S5 4510.2 9.5 652 950 3.5 07 JUN 2004 OSPSEP 2004 I3DEC 2004 . . 4492.2 4496 0 * .. 45000 4513.6 MWIII * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 0u 118 COGEMA NIining Inc.- NR CDE02REP Mine Unit 3 Well I.D. MWI 14 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL N Chloride Units Upper Control Limit 2004 Specific Conductance mg/l mho/cm mg/I as CaCQ3 777 129.7 ji 13.4 Total Alkalinity'. Uranium pH mg/l - Piezometric Elevation msl Date 12JAN 2004 104 677 103.17 09 FED 2004 96 675 97.5 15MAR 2004 9.9 668 97.4 06 APR 2004 98 675 980 03 MAY 2004 98 674 15 JUN 2004 96 14JUL 2004 8.7 4500.7 4495.0 9S0 8.7 a6 8.7 8.6 661 97.1 8.7 4501 . 98 64S 962 09 AUG 2004 100 662 93 6 8.7 4503.9 21 SEP 2004 9.5 666 1000 83i 4505.1 06 OCT 2004 9S 661 97.7 86 4510.0 * Values Exceed Upper Control Limit 4501.8 448.4 4492.6 4504.3 MWI14 Negative U308 Grades Indicate Less Than Dctcction Limit. N 119 COGEMA Mining In'&., NRCDEO2REP CHRISTENSEN RANCH PERIMETER ORE ZONE-MONITOR WELL... Mine Unit 3 WellII.D. MWI 15 Water Quality - Parameters Un-its Upper Control Limit Specific Conductance Chloride I .mg/i , znho/cm Total_ Alkalinity. ,-mg/I as CaCO3 777 13.4 ; '.2004 -- IpH :mg/i Piezornetric .IElevation Uraniumi' in,s! . . 129.7 Date 4499.6 12JAN2004 10.4 677 104 1 8.4 09 FEB 2004 9.9 675 100 0 8.5 15SMAR2004 96 670 100.3 8.5 06 APR 2004 9.5 678 98.9 3.5 4493.5 03 MAY 2004 9.5 676 97.8 8.4 4496.9 ISMUN2004 9.3 661 98 6 8.5 4504 6 14JUL 2004 9.5 652 300.0 86 09 AUG 2004 9.5 668 94.4 8.4 21 SEP 2004 99 666 103.4 84 06 OCT2004 94 98.3 8.5 :~*Values .665 4500.7 I . I~ ~1 i, . 4496.7 45045. 4505.7 43509.4 .. MWI1I5 Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. i.- 20 COGENIAlMining Inc. NRCDEQ2REP Mine Unit 3 Well I.D. MWI 16 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Units Upper Control Limit Specific Conductance mho/cm mg/i as CaCO3 777 129.7 [L 13.4 Total Alkalinity 2004 Uranium pH mg/l Pielometric Elevation msl Date 12)AN2004 9.7 671 1008 S.6 4497.5 09 FEB 2004 9.5 671 1006 8.7 4498.3 15 MAR 2004 94 666 99.5 S.6 4493.5 06 APR 2UO4 9.4 674 98.2 S.6 4483.3 03 MAY 2004 9.7 673 100.5 3.5 4485.7 15 JUN 2004 94 657 100.2 S.5 4503.6 14 JUL 2004 9.4 656 9t.2 8.7 4504.4 09 AUG 2004 9.7 660 9S 4 86 4505 6 21 SEP 2004 9.5 661 965 86 4506 1 06 OCr 2004 94 660 960 t6 4504.8 * Values Exceed Upper Control Limit MW 116 Negative U308 Grades Indicate Less Than Detection Limit. 121 NRCDEQ2REP Mine Unit 4 Well I.D. 4MW-1 .. Water Quality . . Parameters Units ; I- Upper Control Limit COGEMA Mining Inc. CHRISTENSEN RANCH -; PERIMETER ORE:ZONE MONITOR WELL Chloride mg/l Specific Conductance Total Alkalinity I ,,mg/l as CaCO3 mho/cm 825: . 11.1 2004: pH Uramum- U n. m* Piezometric I Elevation msl mg/i 116.9 .- .. . Date 05 JAN 2004 9.3 669 98.6 36 451S.5 EEB 2004 9.2 670 93.4 S.6 4521.2 IOMAR2004 10 2 664 93.0 S6 4532.5 OSJUN 2004 12.2 * 655 96.2 S5 4525.3 . 13SEP2004 120 * 630 99.6 S6 14 5 * 679 916 0' 0SDEC 2004 * - 1 .. Values Exceed Upper Control Limit Negativc U308 Gradcs Indicatc Less Than DEctection Limit. ;. 122 4528.5 4536 5 3.4 .4MW-1 I NRCDE02REP Mine Unit 4 Well I.D. 4MW-2 Water Quality Parameters COGEMA Mining Inc. CHRISTENSEN RANCH. PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Specific Conductance mg/l Total Alkalinity p mho/cm 11.1 2004 Uranium pH mg/I as CaCO 3 825 mg/ ! PiezometricElevation I nsl 116.9 Date OSJAN 2004 90 671 101.2 02 FED 2004 91 672 103.0 10MAR 2004 90 662 1009 86 4530.4 OSJUN2004 94 656 97.3 8.5 4525.1 13SEP2004 9.2 639 100 1 B.6 4510.5 0 DEC 2004 9.1 667 91.8 8.5 * Values Exceed Upper Control Limit 36 36 4519.5 4526.3 4537.7 4MW-2 Negative U308 Grades Indicate Less Than Detection Limit. 123 COGEMA Mining Inc. NRCDEQ2REP CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Mine Unit 4 Well I.D. 4MW-3 Chloride : Water Quality I Parameters Units Upper Control Limit Specific Conductance Itmho/cm mg/l . Total Alkalinity -Piezometric Elevation Uraniumr pH mg/I mg/i as CaCO3 msl . - -- 116.9 825;: 11.1 2004 Date 05 JAN 2004 13.8- 02 FEB 2004 11.5 IOMAR2004 10.5 0 IUN 2004 12.8 13SEP2004 08 DEC 2004 * 688 99.4 B.6 673 95.7 8.7 665 960 86 * 667 91.3 86 120 * 651 990 8.6 13.2 * 673 83.2 . ' 4520.1 .1 4537.6 , . Negative U308 Grades Indicate Less Than Detection Limit. .-124 * 4526.3 4533.6 4536.6 85 - Values Exceed Upper Control Limit 4518.0 - 4MW-3 COGEMA MIining Inc. NRCDEQ2REP Mine Unit 4 Well I.D. 4MW-4 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Specific Conductance mgI Uranium pH mg/I as CaCO3 mholcm [L 11.1 Total Alkalinity 2004 mg/l PiezometricElevation msl 116.9 825 Date 05 IAN 2004 90 679 105.6 8.5 4524.1 02 FEB 20)4 90 67S 105.5 8.5 4527.8 10MAR 2004 8.9 667 1042 85 4539.2 OSJN 2004 9.1 666 1000 84 4532.4 13 SEP 2004 90 652 1054 8.5 4518.0 0 DEC 2004 8.7 674 959 84 * Values Exceed Upper Control Limit 4540.7 4MW-4 Negativc U308 Grades Indicate Less Than Detection Limit. 125 COGEMA-Mining Inc. . NRCOEO2REP Mine Unit 4 Well I.D. 4MW-5 Water Quality - Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Specific Conductance Chloride mg/l ; - mho/cm 11.1 Total Alkalinity ;. U m Piezometric Uau Elevation pH ,:mg/l asCaC0 3 825 . 2004 . mg/l msl 116.9 Date C5 JAN 2004 9A4 677 99.8 16 4522.3 02 FEB 2004 9B 676 103.3 S.5 4520 9 IOMAR2004 9.2 664 99.3 86 4543.3 08 JUN 2004 9.5 662 946 8.5 4528 1 13SEP2004 9.1 - 649 93.6 J6 45100 08 DEC 2004 9.3 664 90.9 3.5 * Values Exceed Upper Control Limit 4537.1 4MW-5 Negative U308 Grades Indicate Less Than Detection Limit. -:126 COGE1MA.1Mining Inc.' NRCDE02REP Mine Unit 4 Well I.D. 4MW-6 Water Quality CHRISTENSEN RANCH PERIMETER ORE: ZONE MONITOR WELL Chloride Parameters mg/I Units Upper Control Limit Specific Conductance 11.1 Total Alkalinity 2004 oI Uranium pH mg/l mg/l as CaCQ3 p mho/cm 825 Piezometric Elevation misl 116.9 Date 05 JAN 2004 91 660 1000 02 FEB 2004 8.9 667 99.9 86 86 664 652 642 66S 102.9 86 4550.0 97.5 8.5 4544 8 100.2 92 A 8.6 8.5 4528.0 10MAR 2004 08 IUN 2004 t3 SEP 2004 OSDEC 2004 90 93 9.0 ' 105 * Values Exceed Upper Control Limit 4527.9 4532 2 4543.6 4MW-6 Negative U308 Grades Indicate Less "han Detection Limit. ''I 127 COGEMXA Mining :Inc.' NRCOE02REP CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Mine Unit 4 Vrell I.D. 4MW-7 :, Chloride 'Water Quality -Parameters Units Upper Control Limit Specific Conductance. mg/l . j mho/cm 11.1 Total Alkalinity 2004 mg/l as CaCO3 116.9 825:. Piezometric Elevation Uranium pH mg/lI . : . msl , . Date 05 IAN 2004 96 664 100.6 S.7 4525.2 02 FEB 2C04 9.1 662 922 8.9 4525.4 09 MAR 2004 92 665 944 8.9 4525.4 08 UN 2004 9.2 650 85 9 S7 4531.9 16SEP2004 9.1 642 95.7 S.7 4521.S 08DEC2004 10.2 652 87.0 8S 4540.5 4MW-7 .* Values Exceed Upper Control Limit Ncgativc U308 Grades Indicate Less Than Detection Limit. iC 128 COGEMAIMining Inc. NRCDEQ2REP Mine Unit 4 Well I.D. 4MW-8 I Water Quality CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Parameters Units Upper Control Limit Specific Conductance mg/I mho/cm .t 11.1 Total Total Alkalinity 2004 Uranium pH mg/i as CaCO3 825 mg/I PiezometricI Pi ezo metr ic Elevation msl 116.9 Date OSJAN 2004 92 67J 105.0 3.5 02 FEB 2004 92 677 1044 3.5 4532.3 IOMAR2004 90 66J 1020 36 4553.0 03 JUN 2004 9.3 665 93 4 S.5 4537 0 I1 SEP 2004 90 652 102.9 3.6 4525 0 03 DEC 2004 3.7 672, 92.9 3.5 4543.5 * Vahlies Exceed Upper Control Limit 4521.6 4MW-8 Negative U308 Grades Indicate Less Than Detection Limit. 129 I COGEMA Mining Inc.- NRCDE02REP CHRISTENSEN RANCH'.' PERIMETER ORE ZONE MONITOR WELL. Mine Unit 4 Well I.D. 4MW-9 Water Quality .Parameters Units Chloride . mg/i Upper Control Limit Specific Conductance. Total Alkalinity . ;:;mgfl as CaCO3 p mho/cm 11.1 825:; . . 2004 :. Piezometric Elevation Uranium pH mg/l 116.9 . msl ;. Date 8.8 670 98.1 8.6 9.0 670 996 8.5 09 MAR 2004 89 664 97.4 86 4544.8 0 JUN 2004 89 658 944 8.5 4551.1 16SEP2004 91 639 95. 86 4553.3 O&DEC2004 t.9 660 90.2 05JAN 2004 02 FEB 2004 . * Values Exceed Upper Control Limit I 84 4526.3 : ., 4527.7 4541.7 4MW-9 Negative U308 Grades Indicate Less Than Detection Limit. , 130 COGEMA Mining Inc. NRCOEO2REP Mine Unit 4 Well I.D. 4MW-10 Water Quality Parameters Units Upper Control Limnit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Specific Conductance mgll Total Alkalinity Uranium pH mg/l mg/l as CaCO3 jimho/cm 11.1 2004 I Piezometnc Elevation msl 116.9 825 Date 051 AN 2004 94 677 103.9 36 4530.5 02 FE132004 9.1 673 3.7 4532.8 IOMAR2004 8S 666 99.0 9S.0 3.3 4534.8 4 JUN 2004 9.3 663 100.9 3.5 4533.3 13SEP2004 9.3 652 101 6 3.6 4531.0 0oDEC 2W04 9.1 669 92.7 3.5 * Values Exceed Upper Control Limit 5.45.2 4MNW-10 Negative U308 Grades Indicate Less Than Dctcction Limit. 131 COGEMA Mining Inc. NR CDE02REP Mine Unit 4 Well I.D. 4MW-1 I Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL - . 2004- r Chloride mg/I Specific Conductance ,, Spmho/cm Total Alkalinity mg/i c.:mg/I as CaCO 825 - 11.1 .Piezometric Elevation Uranium pH rns! . 116.9 - - Date 05 JAN i004 93 674 98 7 86 02 FEB 2004 9.3 673 97.4 85 09-MAR2004 9.3 665 96.8 86 0 JUN 2004 9.4 658 90.7 85 16.SEP2004 9.4 644 95.1 86 4532.3 OSDEC 2004 9.0 661 87.7 84 4544 0 * : .4533.8 4528 4 :, . . 4534.5 4536 6 -- . 4MW-1i Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. : I32 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 4 Well I.D. 4MW-12 Water Quality Parameters Units Upper Control Limit CHRISTENSENRANCH PERIMETER ORE ZONE MONITOR WELL;' Chloride mg/i Specific Conductance pimho/cm Total Alkalinity 825 116.9 11.1 2004 Uranium pH mg/I as CaC0 3 mg/l Piezometric Elevation msl Date 05 JAN 2004 91 653 S9.1 02 FE132004 I6 672 1016 36 4536.3 IOMAR2004 8S 665 9S.1 S.7 4537.4 14JUN 2C04 90 650 95.2 15SEP 2004 9.4 650 101.6 0ODEC 2004 9S 662 940 * Values Exceed Upper Control Limit 4532.3 4541.1 4535.1 8.7 4547 0 4MW-12 Negative U308 Grades Indicate Less Than Detection Limit. 133 COGEMA-Mining Inc. NRCDEQ2REP CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Mine Unit 4 Well I.D. 4MW-13 - . . Water Quality .- Parameters Units Upper Control Limit Chloride .I mg/l . Specific ' Conductance. n . rmho/cm Total Alkalinity mg/l as CaCO3 116.9 825! 11.1 . ;2004' - . . Uranium pH Piezometric Elevation msl mg/l . -, Date : .. 05 JAN 2004 9.4 675S 02 FEB 2004 9.6 672 09 MAR 2004 9.6 667 14JUN 2004 94 659 l1SEP 2004 92 03 DEC 2004 9.1 200.6 96.6 B.5 97.3 E5 95.E E4 653 966 E.5 664 S7.2 8.4 , - ! * Values Exceed Upper Control Limit 4529 3 4527.4 - 134 4540.3 I, . .I , 4534 0 4546.2 , Nc-ative U308 Grades Indicate Less Than Detection LimiL 4529 3 1. 3.5 . . 4MW-13 . COGEMA Mining Inc.' NRCDEQ2REP Mine Unit 4 Well I.D. 4MW-14 : ' - Waier Quality I Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/i Units LUpper Control Limit Specific Conductance Uranium pH mg/1 mg/l as CaCO3 mho/cm jt 11.1 Total Alkalinity 2004 825 :.- Piezonetri' IElevation rsl m 116.9 Date 05 IAN 2004 90 666 112.0 8.5 4535.4 02 FE8 2004 8s 661 110.4 8.4 4541.0 10 MAR 21104 8.4 661 105.3 8.5 4529.6 14 JUN 2004 8.9 652 11t.6 8.4 4543 6 13SEP 2004 8.9 643 108 I 8.5 4539.0 OS DEC 2004 99 664 106 6 84 * Values Exceed Upper Control Limit 4549.3 4MW-14 Negative U308 Grades Indicate Less Than Detection Limit. 135 I COGEMN Mining Inc.. NRCOE02REP CHRISTENSEN RANCH.' PERIMETER ORE ZONE MONITOR WELL Mine Unit 4 Well I.D. 4MW-15 -f ! Chloride Water Quality Parameters Units Upper Control Limit Specific Conductance. m .gI hoc. m 11.1 Total Alkalinity '2004 -mg/l as CaCO3 825 Piezometric P . .Elevation Uranium pH mg/l msl ' . I I. 116.9. ; Date - I 05 JAN 2004 94 677 99.7 S6 02 FED 2004 95 670 97.2 84 09 MAR 2004 96 667 96.9 S5 14 JUN 2004 9.7 659 97.9 t4 . . 16 SEP 2004 94 655 97.7 36 01 DEC 2004 9.2 665 88.6 3.4 4531.9 4530.9 * - 4521.5 .. I 4535 2 * -.1 4535 5 I 4546 0 4MW-15 : * Values Exceed Upper Control Limit Negative U308 Grodes Indicate Less Than Detection Limit. 136 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 4 Well I.D. 4MW-16 Water Quality *Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Specific Conductance mg/l Total TotalAlkalinity p mho/cm 11.1 2004 Uranium pH mg/I as CaCO3 825 mg/i Piezometric Piezometric Elevation msl 116.9 Date 05 AN 2004 8.5 673 104.0 86 453t.1 02 FEB 2004 9.0 670 1059 34 4544.3 IOMAR2004 8.5 664 102.9 86 4531.1 14 JUN20D4 86 660 103 0 84 4545 6 13SEP2004 8.8 651 105 2 a5 4541 0 00 DEC 2004 S. 671 950 84 * Values Exceed Upper Control Limit 4551.0 4MNV-16 Negative U308 Grades Indicate Less Than Detection Limit. 137 COGEMA-Mining Inc; NRCDEO2REP CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Mine Unit 4 Well I.D. 4MW-17 . Water Quality . . Parameters . Units Upper Control Limit Chloride .mg/l Specific Conductance pmnholcmr 11.1 Total Alkalinity 2004 .. pH Uramum-. - ,mgflasCaCO3 825 , mg/I 116.9 Piezometric Elevation : sl I i - ..- Date 05 JAN 2004 9.3 676 02 FEB 2004 9.4 669 09 NIAR 2004 9.3 667 14 JUN 2004 96 659 15SEP 2004 9.3 651 OSDEC 2004 9.9 662 r . o00.9 96 4531.9 96.1 9.4 4534.6 4535.8 96.5 ,, 97.7 S4 4541.7 95 6 S6 4541.7 aS0 a95 4548.1 4MW-17 * Values Exceed Upper Control Limit Negative U308 Gradcs Indicate Less Than Detection Limit. ; -138 ;. COGEMA Mining Inc. NRCDEO2REP Mine Unit 4 Well I.D. 4MW-18 'Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Specific Conductance mg/l Total Alkalinity Uranium pH mg/i mg/i as CaC0 3 g mho/cm 825 11.1 2004 Piezometric Elevation msl 116.9 Date 05 JAN 2004 90 678 102.2 8.5 4537.7 02 FEDl2004 92 674 99.9 8.4 4542.3 15MAR 2004 10.0 672 1080 8.6 4535.3 15 JUN 2004 9.8 663 102.1 8.3 4546.3 13 SEP 2004 9.4 657 1040 0 DEC 2004 9.2 674 93 4 * Values Exceed Upper Control Limit S.5 a.5 4540 0 4551 8 4MW-18 Negative U308 Grades Indicate Less Than Detection Limit. 139 COGEMA Mining Inc., NRCOE0ZREP Mine Unit 4 Well I.D. 4MW-19 Water Quality Parameters -CHRISTENSEN RANCH .. PERIMETER ORE ZONE MONITOR NVELL Chloride mg/l Units Upper Control Limit Specific Conductance. Total Alkalinity . . mg/i as CaCO 3 mba/cm 116.9 825 '. 11.1 . 2004 - * Piezometric Elevation Uranium pH rnsl mg/I 1 . Date 05 IAN 2004 9.5 691 1042 2.4 02 FEB 2004 9.4 673 985 84 09MAR 2004 9.3 672 999 3.5 14 JUN 2004 94 664 1002 8.3 15 SEP 2004 94 655 98 5 2.3 4535.9 00DEC 2004 92 669 92.2 :4 4548.3 * - 4531.7 I.. 4534 : 4535.8 4541.9 4MW-19 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 140 COGEMA Alining Inc. NRCDE02REP Mine Unit 4 Well I.D. 4MW-20 Water Quality Parameters CHRISTENSEN RANCH: PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Specific Conductance mgOl Total Alkalinity l mho/cm 11.1 2004 Uranium pH mg/I as CaCQ3 825 mgll Piezometri' Elevation msl 116.9 Date 05 JAN 2C04 8.7 682 106.1 3.5 02 FEB 2004 B8 677 104.9 8.4 4539 4 10MAR2004 86 675 104 S 8.5 4523 6 08 UN 2004 Sa 669 100 1 8.4 4536.2 13 SEP 2004 S8 658 105.2 8.5 4544 0 CSDEC 2C04 S5 674 94.4 85 * Values Exceed Upper Control Limit 4538 8 4554.2 4MW-20 Negative U308 Grades Indicate Less Than Detection Limit. '-J 141 COGEMA Mining Inc.- NR CDE02REP Mine Unit 4 Well I.D. 4MW-21 . .. Water Quality. Parameters Units Upper Control Limit .CHRISTENSEN RANCH PERIMETER ORE ZONE MONITORWELL Chloride Specific Conductance p mho/cm mg/l 11.1 Total Alkalinity, . Uranium pH mg/l n-mg/l as CaCO 3 - Piezometric 1Elevation msl 116.9 825 . , -2004 : ; Date 05JAN 2004 94 672 100.4 &.5 4532.3 02 FEB 2004 9.6 669 99.9 84 4531.0 09 MAR 2004 9.5 666 99.0 1.5 4533 0 14 UN 2004 96 65 100.4 83 4534.7 13SEP2004 94 641 98.9 1.5 08 DEC2004 9.4 663 91.5 8.4 * - 4540 0 4549.4 - 4MV-21 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. a- 142 COGEMA Mining Inc. NRCDE02REP Mine Unit 4 Well I.D. 4MW-22 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Specific Conductance Chloride mg/l .I S 11.1 Total Alkalinity mho/cm mg/l as CaCO3 825 116.9 2004 Uranium pH mg/i Piezometric Elevation msl Date 05 JAN 2004 9 a 683 105.0 3.5 4539.1 02 FEB 2004 9.5 677 104.1 8.4 4536.3 10 IAR 2004 a9 677 103.3 3.5 4503.5 0OJUN 2004 92 669 934 34 4521.7 13SEP2004 3.9 657 102.3 OSDEC 2004 3.7 674 93.0 * Values Exceed Upper Control Limit 4518 0 34 4554.5 4MW-22 Negative U308 Grades Indicatc Less Than Detcction Limit. '-/ 143 COGEMA Mining Inc. NRCOEO2REP Mine Unit 4 Well I.D. 4MW-23 CHRISTENSEN RANCH -. PERIMETER ORE ZONE MONITOR WELL :2004I: ..., . .f Date ,, 05 IAN 2004 9.1 679 100.4 3.4 02 FEB 2004 9.2 677 100.4 8.3 09MAR 2004 9.2 674 101.0 3.4 14JUN 2004 9.3 667 100.4 3.3 13SEP2004 9.3 659 100.9 3.4 0SDEC2004 3.9 671 90.9 3'4 i . Ncgative U308 Grades Indicate Less Than Detection Limit. d t144 r . 4529.8 4545.4 ' ". . : 4540.0 4551.3 : Values Exceed Upper Control Limit 4533.6 4530.9 4MW-23 COGEMA Mining Inc. NRCDEO2REP Mine Unit 4 Well I.D. 4MW-24 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Units Upper Control Limit Specific Conductance Total Alkalinity A1mho/cm 11.1 2004 Uranium pH mg/l mg/I as CaC0 3 825 ' Piezometric Elevation insl 116.9 Date 05 IAN 2004 9.2 696 100.7 8.4 4539 4 02 FED 2C04 9.2 68t 100.2 B.3 4533.3 IOMAR2004 90 680 98.3 85 4525.1 0 RUN2004 9.1 670 946 8.4 4537.2 13 SEP 200 92 657 1003 84 4539.0 O8DEC 2(04 89 671 90.7 .4 4554.5 * Values Exceed Upper Control Limit 4MW-24 Negative U308 Grades Indicate Less Than Detection Limit. 145 COGEMA:Mining Inc. NR CDEO2REP Mine Unit 4 Well I.D. 4MW-25 Chloride Water Quality Parameters . Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL ! mg/l . Specific' Conductance. . 4t mho/cm 11.1 Total Alkalinity 2004 T.,.;: . Uranum pH. 116.9 msl mg/l n-mg/lasCaCO. 825:,i Piezometric . Elevation 3 .- .,.. Date 05 JAN 2004 9.1 682 02 FEB 2004 9.6 674 100.3 10 MAR 2004 9.1 67S 8 1016 14 JUN 2004 9.3 671, 102.4 S3 4546.4 16SEP 2004 I D 2 0S DEC 20014 9.2 658 102.4 8.5 4546.6 S7 677 97.9 84 4553.4 ! . 102.5 * Values Exceed Upper Control Limit 8.4 8.3 8.5 4538.5 4532.6 4532.0 4MW-25 Negative U308 Grades Indicate Less Than Detection Limit. ;; 146 COGEMA Mining In'C.' NRCDEQ2REP Mine Unit 5 WVell I.D. 5MWI Water Quality . Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Conductance Units Upper Control Limit Specific Chloride mg/l 22.7 Total Alkalinity , mrho/cm 2004 I Uranium pH mg/l as CaCO3 1004 Piezometric' Elevation mg/l msl 134.3 Date 21JAN2004 8S 810 102.1 8.2 4568.5 13APR2004 .7 B03 106 8 8.3 4574.5 20 JUL 20C4 8.0 774 I08.9 8.2 4576.1 190CT2004 8.1 772 1000 8.0 4581.7 * Values Exceed Upper Control Limit 5MWl Negative U308 Grades Indicate Less Than Detection Limit. 147 COGEMA Mining Inc. Mine Unit 5 Well I.D. 5MW2 Water Quality Parameters Units Upper Control Limit 2004 CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL:. Chloride mg/l Specific Conductance mho/cm 22.7 Total Alkalinity ;mg/l as CaCO 3 1004 Uranium mg/i pH Piezometric Elevation msl 134.3 Date 19JAN 2004 13APR 2004 7.7 7.8 20 JUL 2004 1I 19oCr2004 3.5 1223 1171 1006 949 '- 102.1 102.0 97.2 .- - 1 - . 998 BI :3 83 SI1 . I 4563.9 4570.8 4574 0 4570.4 , 5MW2 . * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. / ,.;148 COGEMA Mining Inc. NRCDE02REP Mine Unit 5 Well I.D. 5MW3 Water Quality Parameters CHRISTENSEN RANCH i PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Specific Conductance mg/l 22.7 Total Alkalinity gi mho/cm mg/I as CaCO3 1004 134.3 2004, Uranium . pH Piezometric Elevation mg/l msl Date 21 JAN 2004 79 756 100.9 82 4568 0 13APR2D04 S.3 754 105.3 8.3 4573 8 20 JUL 2004 8.0 739 96.7 82 4575.8 19 OCT 2004 B 1 748 102.3 8.0 * Values Exceed Upper Control Limit 4572.5 5MW3 Negative UJ308 Grades Indicate Less Than Detcction Limit. 149 COGEMA Mining Inc. NRCDE02REP Mine Unit 5 Well I.D. 5MW4 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL . Chloride mg/i Upper Control Limit Total Alkalinity . Specific Conductance 22.7 InUnits p mho/cm 2004 mg/l ,mg/l as CaC0 3 1004 Piezometric . Elevation Uranium'* pH 134.3. msl - Date 21 JAN 2004 9.2 2038 . 13APR 2004 9.1 990 20 JUL 2004 29 937 21 OCr 2004 9.1 999 1136 S2 4566.0 I09.9 8.4 4572.6 . 2, 104.5 8.4 4576.1 . 112. S.0 * 4576.0 5MW4 * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. . 150 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 5 Well I.D. 5MW5 Water Quality Parameters Units Upper Control Limit CHRlSTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Specific Conductance mg/l 22.7 Total Alkalinity ,u mho/cm 2004 Uranium pH mg/l as CaC0 3 Piezometric Piezometric Elevation mg/l msl 134.3 1004 Date 21 JAN 2004 7.7 923 92.5 8.0 4566.0 13ArR 2004 7.1 S59 96.3 8.3 4571.4 20 JUL 20(4 77 778 94 6 8.3 4575.2 19OCT 204 7S 765 98.7 S.l 4579.7 * Values Exceed Upper Control Limit 5MW5 Negative U308 Grades Indicate Less Than Detection Limit. 151 COGEMA Mining Inc. NRCDE02REP CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Mine Unit 5 Well I.D. 5MW6 . _ .Water Quality Parameters Units Upper Control Limit Chloride f mg/i Specific Conductance ,, 22.7 nImho/cm Total Alkalinity 2004 , Uraium pH . mg/las CaCO 3 1004 '' Urnu. Piezometric '.Elevation mg/l msl 134.3 Date ; . 4567.2 19 JAN 2004 10.0 835 113 0 83 I3 APR 2004 9.7 850 111.6 8.4 20 JUL 2004 11.6 939 103.7 S3 45n7.3 190CT 2004 11.1 873 108.9 8.1 4576.8 * Values - - - 5MW6 Exceed Upper Control Limit Negativc U308 Grades Indicate Less Than Detection Limit. 152 4572.4 COGEMA Mining Inc.- NRCDE02REP Mine Unit 5 Well I.D. 5MW7 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL. Chloride mg/I Specific Conductance g mho/cm 22.7 Total Alkalinity 2004 Uranum pH mg/l as CaCO3 1004 - Piezometric . Elevation mg/I msl 134.3 Date 21 IAN 2004 6.9 910 93.3 83 13APR 2004 7.4 850 95.5 8.4 4568.9 20 JUL 2004 7.4 803 89.8 8.3 4572 6 19OCT 2004 78 789 967 8.1 * Values Exceed Upper Control Limit 4562.1 4568.4 5MW7 Negative U308 Grades Indicate Less Than Detection Limit. 153 COGEMA Mining;.Inc. NRCDEQ2REP Mine Unit 5 Well I.D. 5MW8 -V., Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL I mg/l Units Upper Control Limit Specific Conductance Chloride . 23 : ,umho/cm Total Alkalinity asCC mg/i as CaC 122.5. . 1423.! : .2004 .. Piezometric Urani.um Uramum.. BElevation pH . mg/l 3 .- .g/ nmsl , , Date 21 JAN 2004 160 I3 APR 2004 186 *1044 - 20 JUL 2004 22.3 - 1061 * 19OCT 2004 22.3 . : -. - 9S0 * 1691 : 1S4.5 . . 193.6 I . *I , S.1 S.1 . . 7.8 I.. 195.2 106S SO * * . 4573.S . - - -- 5MW8 -* Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Dctcction Limit. :154 4565.2 4571.5 4573.4 -I COGEMA Mining Inc. NRCDE02REP Mine.Unit 5 Well I.D. 5MW1O CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL I... K. 2004 Date 21JAN 2004 10 1 774 126.2 8.5 13APR2004 21 3 797 1407 84 4571.1 20 JUL 20C4 lo 5 771 143.5 84 4573.6 190CT20)4 103 761 1302 8I * Values Exceed Upper Control Limit 4564.7 4572.9 5MW10 Negative U308 Grades Indicate Less Than Detection Limit. 155 COGEMAMining Inc. NRCOEQ2REP Mine Unit 5 Well I.D. 5MW12 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL ;: Chloride Units Upper Control Limit Specific Conductance. mg/l 22.8 mho/cm Total Alkalinity .2004 Uu pH Uranum' :mg/las CaCO3 1725'i Piezometric 'Elevation *. - mg/l msl 145.4 Date I 21JAN2004 9.1 951 130.9 7.2 13APR 2004 90 980 - 136.7 7.9 20JUL2004 9.3 945 - 130.5 SO 19 OCT 2004 8.9 944 137.4 7.7 * Values Exceed Upper Control Limit 4560.3 : '--156 4562.7 4564.7 ! . I Negative U308 Grades Indicate Less Than Detection Limit. , 4565.0 .5MW12 COGEMA Mining Inc. NRCDE02REP Mine Unit 5 Well I.D. 5MW14 CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL 2004 Piezometric Water Quality Parameters Units Upper Control Limit Chloride mg/l Specific Conductance p mho/cm 22.7 Total Total Alkalinity Uranium pH mg/l mg/I as CaCO3 Piezometric: . Elevation Mns, 134.3 1004 Date 21 JAN 2004 8.9 6U4 1195 8.4 4559.6 13APR 2004 S.7 705 112.5 B.5 4565.4 20 JUL 2004 86 685 107.3 3.5 4567 3 19OCT 2004 90 679 1132 3.1 4569.9 * Values Exceed Upper Control Limit 5M1W14 Ncgative U308 Grades Indicate Less nTan Detection Limit. ' 157 COGEMA Mining Inc.: NRCDE02REP Mine Unit 5 Well I.D. 5MW16 CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL- : 2004 Date 21 JAN 2004 g0 746 M0S.5 3.4 13APR 2004 S.l, 764 103 t 6.4 4565.0 20 IUL 2004 8S.3 737 102.5 84 4569 4 731 104.2 6.1 19 OCT 2004 I -6.2 4559.1 4568.9 5MW16' ! * Values Exceed. Upper Control Limit Negative U308 Grades Indicate Less Than Detcction Limit. 'Ii 158 COGEMA Mining Inc. NRCDEO2REP Mine Unit 5 Well I.D. 5MW18 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Units Upper Control Limit Specific Conductance 22.7 t mho/cm Total Alkalinity 2004 Total~~ Uranium pH mg/I mg/I as CaCO 3 1004 vmti Pi 11-1 Piezometric Elevation mnsl 134.3 Date 21JAN 2D4 7.1 909 97.7 82 13 APR 2004 7.4 890 97.9 84 4562.7 20 JUL 2004 7.3 822 92 S 83 4564.4 19 OCT 2004 7.4 820 97.9 a0 * Values Exceed Upper Control Limit 4557.0 4564.6 5MW18 Negative U308 Grades Indicate Less Than Detection Limit. 159 COGEMA-Mining Inc. NRCOE02REP Mine Unit 5 Well I.D. 5MW20 * Water Quality . .,Parameters Units Upper Control Limit - CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELLChloride mg/l Specific: Conductance . . iPrnho/cm 22.7 1004: : Total - . Alkalinity ;.mg/l 2004 Uranum pH as CaCO 3 134.3 . mg/l . - - Piezometric . Elevation msl I . Date . 21)AN2004 6 907 93.0 8.2 13APR2004 7.1 373 97.3 8.4 20 JU 2004 7.2 340 91.1 19OCr2004 7.4 344 97.9 * . . 3.3 3.2 4559.5 4565.7 . 4567.3 4563.0 -5MW20 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detcction Limit. .160 COGEMA Mining Inc.' NRCDEO2REP Mine Unit 5 Well I.D. 5MW30A I Water Quality CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL' Chloride Parameters mg/I Units Upper Control Limit Specific Conductance 22.7 Total Alkalinity 2004 TotalPiezoetrv pH Uranium mg/i mg/l as CaC0 3 ,u mho/cm . Piezometric Elevation msl 134.3 1004 Date 19 JAN 2004 8.0 673 1062 86 4554.2 12 APR 2004 8.I 668 107 8 86 4563.6 19 JUL 2004 84 654 107.2 8.5 4567 8 Is OCT 2004 S.l 65S 1035 85 4566 5 * Values Exceed Upper Control Limit 5MW30A Negative U308 Grades Indicate Lcss Than Dctection Limit. ' 161 COGEMA Mining Inc. NRCOE02REP Mine Unit 5 Well I.D. 5MW31 | Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH - ' PERIMETER ORE ZONE MONITOR WELL Chloride mg/i SpecificConductance u.mho/cm 22.7 1004 I Total Alkalinity :mg/las CaCO 2004 :. Uranium - pH mg/l .; Piezometric Elevation I msl . I I 134.3 Date 19JAN2004 8.7 671 111.3 85 12APR 2004 84 667 IDSI 86 19 JUL 2004 8.4 653 107.1 IS5 4567.8 -IS OC 2004 84 655 105 6 84 4564.8 * Values - 4564 0 .-MW31 Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. :162 4554.7 . COGEMIA Nlining Inc. NRCDEQ2REP Mine Unit 5 Well I.D. 5MW32A CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL 2004 J Water Quality Parameters Chloride Units Upper Control Limit Specific Conductance mg/l 22.7 Total Alkalinity II mho/cm pH mg/I as CaC0 3 1004 Uranium Piezometric Elevation mg/I msl 134.3 Date 19 JAN 2004 S.2 677 1092 8.6 4554 8 12 APR 2004 8.4 675 114.5 8.6 4563.5 19 JUL 2004 84 664 111.6 8.5 4567.3 18 OCT 2004 84 66S 109 8 S.5 4566.8 * Values Exceed Upper Control Limit 5MW32A Negative U308 Grades Indicate Less Than Detection Limit. 163 COGEMA Mining Inc. NRCOE02REP Mine Unit 5 Well I.D. 5MW33 I Water Quality CHRISTENSEN RANCH ; PERIMETER ORE ZONE MONITOR WELL Chloride Parameters airmho/cm mg/l Units Upper Control Limit Specific I Conductance Total Alkalinity ., . mg/l as CaCO3 2004; Uranium'. pH Piezometric: m ,~.''Elevation I msl mg/l ... 134.3 1004'. 22.7 - Date 8 . 675 103.5 12APR2004 a86 670 107.1 8.5 19 JUL 2004 8.4 661 104.9 84 663 107.0 ISOCr2004 - * 8.7 * I I 3.5 , . 19JAN2004 84 455S.2 4563.6 ; . II ; - 4570.2 4571.1 5MW33 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. !A 64 COGEMIA Mining Inc. ' NRCDE02REP Mine Unit 5 Well I.D. 5MW34 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Specific Conductance mg/l 22.7 Total Alkalinity g mho/cm 2004 mg/I as CaC0 3 1004 Piezometric' Elevation Uranium pH mg/i 134.3 msl - Date I91AAN2004 50 679 107.7 S5 4554.2 12APR 2004 5.0 676 1076 5.5 4560.0 19JUL 2004 52 664 108.6 54 4568 4 10CT 2004 8.3 666 109 6 54 * Values Exceed Upper Control Limit 4567.3 5MW34 Negative U308 Grades Indicate Less Than Detection Limit. 165 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 5 Well I.D. 5MW35A Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH - . PERIMETER ORE ZONE MONITOR WELL Specific I Conductance, Chloride mg/l - p mho/cm Total Alkalinity' ; mg/l as CaCO 3 1004' 1 22.7 2004 . Piezometric Elevation Uranium pH mnsl mg/l . 134.3 . Date 19JAN 2004 676 107.5 2.6 12APR2004 S4 2.5- 672 106.9 26 . 19JUL 2004 26. 662 107.2 S5 12OCr2004 2.5, 105.7 S4 . 662 - 4556.6 . .1 4566 9 4572.0 4568.7 5MW35A * Values Exceed Upper Control Limit Ncgativc U308 Grades Indicate Less Than Dctcction Limit. .166 COGENMA Mlining Inc. NRCDEO2REP Mine Unit 5 Well I.D. 5MW36 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL' Chloride Units Upper Control Limit Specific Conductance mg/l 22.7 Total Alkalinity p mho/cm 2004 Uranium pH mg/I as CaCO3 1004 mg/l Piezometric msl 134.3 Date 19 JAN 2004 S.2 677 109.5 8.7 12 APR 2004 S0 676 10.3 8.7 4565.2 19JUL2004 8.1 665 109.3 85 4568.9 I FOCT 2DO4 8.3 669 2109 84 * Values Exceed Upper Control Limit 4555.3 4568 5 5MW36 Negativc U308 Grades Indicate Less Than Detection Limit. 167 COGEMA Mining Inc. NRCDE02REP Mine Unit 5 Well I.D. 5MW37 .; Water Quality Parameters Units Upper Control Limit CHRISTENSEN-RANCH: PERIMETER OREZONE MONITOR WELL; . Chloride mg Specific Conductance. I . Spmho/cm 22.7 Total Alkalinity Piezometric I I Elevation pH mg/I mg/I as CaCO 3 . 1004 ; 2004- msl - I 134.3., Date 19JAN 2004 8.7 . o 659 12 APR 2004 84 646 19 JUL 2004 84 180CT2004 85 655 - , it -, 65S 1196 86 1160 8.7 112.9 8.5 4573 112.6 8.4 4567.1 .I 4559.1 4568.7 - -: .5MW37 . Values Exceed Upper Control Limit "* Negative U308 Grades Indicate Less Than Dctection Limit. 168 COGEMA Mining Inc.: NRCDE02REP Mine Unit 5 Well I.D. 5MW38 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE' ZONE MONITOR WELL Chloride mg, Specific Conductance u mho/cm 22.7 Total Alkalinity 2004 Uranium pH mg/I mg/l as CaC0 3 1004 Piezometric insl 134.3 Date 19 JAN 2004 S4 67S 112 3 8.5 4556.7 12APR2004 84 678 1124 85 4566.1 19JUL 2004 S4 669 112.5 8.3 4569.8 1SOCT 200 8.3 672 111.7 8.2 * Values Exceed Upper Control Limit 4564 6 5MW38 Negative U308 Grades Indicate Less Than Detection Limit. 169 I/ COGEMA Mining Inc.: NRCDEO2REP Mine Unit 5 Well I.D. 5MW39A Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH , PERIMETER ORE ZONE MONITOR WELL Chloride I mg/l Specific? Conductance I 22.7 t mho/cm 1004: i Total Alkalinity - 2004; : Piezometric . Elevation Uranium pH msl mg/l ;mg/l as CaCO 3 134.3 .; Date 19JAN 2004 B.1 737 12APR2004 8.3 725 19 JUL 2004 3.3 18ocr 2004 83 - 4560.1 110.3 a5 1125 8.5 705 111.1 84 4575.6 703 111.4 S3 4572.7 - i . . 4570.0 .5MW39A .- . . *,Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 1.'170 COGEMA Mining Inc. NRCDE02REP Mine Unit 5 Well I.D. 5MW40 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Specific Conductance mg/i 22.7 Total Total Alkalinity it rnho/cm 2004 Uranium pH mg/I as CaCO3 1004 mg/i Piezometric Piezometric Elevation i ms1 134.3 Date 19)AN 2004 8.9 668 107.0 8.5 4554.5 12APR 2004 90 666 110.3 8.5 4563.7 19JUL2004 8.7 656 107.1 8.4 4570.4 I OCT 2004 9.0 659 110.9 83 * Values Exceed Upper Control Limit 4565 0 5MW40 Negative U308 Grades Indicate Less Than Detection Limit. 171 COGEMA zMining Inc. - NRCDE02REP Mine Unit 5 Well I.D. 5MW41A - Water Quality Parameters Units : Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Specific I Conductance . p mho/cm 22.7 Total Alkalinity , ! Uranium pH mg/l as CaCO3 1004 - ; ' 2004 . Piezometric Elevation msl I mg/il 13 Date 678 , 19 JAN2004 83 I12APR2004 8.4 675 19 JUL 2004 8.2 664 . ISCr2004 90 666 f - i.4563.0 j 1103 S.4 :' 110 F5 4573.4 8.3 4577.9 . 108 8 115.3 .. 83 4572.0 *5MW41A * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection LimitL K. 172 COGENA Mining In'&.' NRCDEO2REP Mine Unit 5 Well I.D. 5MW42 CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL 2004- Date 19JAN 2004 8.3 683 112.6 8.5 4558.7 12APR2004 8.3 682 1126 S.5 4568 3 19JUL2004 84 669 1130 84 4572.0 21 OCT 20)4 82 673 111.5 8.3 4572.9 * Values Exceed Upper Control Limit 5MW42 Negative U308 Grades Indicate Less Than Detection Limit. \'-' 173 COGEMA.Mining i.. ... .. g Inc. n ... NRCDE02REP Mine Unit 5 Well I.D. 5MW43 * Water Quality * Parameters Units Upper Control Limit CHRISTENSEN RANCH,. PERIMETER ORE ZONE MONITOR WELL . Chloride mg/I Specific l Conductance s nmho/cm 22.7 1004.- Total . Alkalinity 2004 pH --' - ,.mg/l as CaCO3 Uranium . Uai. Piezometric -- Elevation mg/l msl 134.3. Date 19 )AN 2004 s.3 12 APR 2004 8.3, 19JUL 2004 6.1 1 IS 0Cr2004 8.6 687 685 6n 673 1146 8.8 .. 115.3 9.0 . 110.9 8.6 85 116.7 * *'.4565.2 . ,. : .4575.1 4579.7 ..; I 4578 4 5MW43 - * Values Exceed Upper Control Limit Negativc U308 Grades Indicate Less Than Detection Limit. -174 COGEMA Mining Inc. NRCOEO2REP Mine Unit 5 Well I.D. 5MW44 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Specific' Conductance mg/l 22.7 Total Alkalinity gi mho/cm 2004 UuPiezometric Elevation pH mg/I as CaCO3 1004 mg/t msl 134.3 Date 19JAN 2004 90 659 1065 8.7 12 APR 201)4 8.5 662 101 2 8.S 4568.1 19 JUL 20C4 8.7 654 107.4 84 4571.9 18 OCT 2004 90 659 110.3 * Values Exceed Upper Control Limit S.4 4558.9 4572.5 5MW44 Negative U308 Grades Indicate Less Than Dctcction Limit. 175 COGEMA- Mining Inc. NRCDE02REP Mine Unit 5 Well I.D. 5MW45 .: -Water Quality Parameters Units : Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride ;. . Total Alkalinity Specific Conductance mg/i 22.7 mho/cm [i -. 2004, Uranium pH r mg/i as CaC0 3 . Piezometric Elevation : ' mg/l msl 134.3: 1004: Date 19IAN 2004 8.0 684, 12APR 2004 7.9 683 19JUL 2004 7.9 662 I 8Ocr2004 83 , 674 1156 8.4 *3 115.3 8.4 - 115.0 8:4 8.3 . 117.5 - * Values Exceed Upper Control Limit 4567.4 4567 2 4581.1 4578 8 I Negative U308 Grades Indicate Less Than Dctcction Limit. . 176 i : . '. 5MW45 COGEMNA Mining Inc. NRCOEQ2REP Mine Unit 5 Well I.D. 5MW46 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Specific Conductance mg/I 22.7 Total Alkalinity gu mho/cm 2004 Uranium pH mg/I as CaCO3 1004 mg/l Piezometric Elevation msl 134.3 Date 19JAN 2004 S.4 676 109.5 8.4 4561.8 13APR2004 3.4 679 113S 3.5 4571.6 19JUL 2004 3.5 664 116S S.5 4575 0 1 0CT2004 3.3 674 112S 34 * Values Exceed Upper Control Limit 4570.5 5MW46 Ncgative U308 Grades Indicate Less Than Detection LimniL 177 COGEMA Mining Inc.. NRCDE02REP Mine Unit 5 Well I.D. 5MW47B CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL - Water Quality Chloride . Parameters Units Upper Control Limit mgi T Specific Conductance . . I mho/cm 22.7 Total Alkalinity !: mg/l 1004 2004 : . . U a Piezometric UraniumElevation pH msl. mg/l as CaCO3 I 134.3 Date 19JAN 2004 21APR2004 191UL2004 18OCT2W04 7.8 8.5 8.3 7.8 688 116.0 S4 6, 69 122.9 84 119.2 84 . 1134 S3 669 , 677 .. 4571.0 4571.0 4SS43 4580.3 5MW47B I.; * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. A; 178 , COGEMA Mining Inc. NRCDEO2REP CHRISTENSEN RANCH Mine Unit 5 Well I.D. 5MW48 IWater Quality Chloride Parameters Units Upper Control Limit 2004 PERIMETER ORE ZONE-MONITOR WELL : Specific Conductance mg/I 22.7 Total Alkalinity Uranium pH mg/i mg/i as CaCO3 p mho/cm 1004 Piezomnetric msl 134.3 Date 191AN2004 106 651 1556 3.3 4563.1 13APR 2004 12.2 637 168.4 34 4571.9 19JUL2004 13.5 640 165.9 S3 4575 6 If OCrT2004 15.4 660 162.9 S3 * Values Exceed Upper Control Limit 4579. 1 5MW48 Negative U308 Grades Indicate Less Than Detection Limit. 179 COGEMA Mining Inc. NRCOEC2REP Mine Unit 5 Well I.D. 5MW49 *Water Quality :. - Parameters Units Upper Control Limit 'CHRISTENSEN RANCH PERIMETER ORE-ZONE MONITOR WELL Chloride mg/l Specific Conductance. Total Alkalinity . , mg/las CaCO3 22.7 prmhofcrn 1004 1 2004 . Piezometric U Elevation pH I mg/A , 134.3 ns . -,; Date 19JAN2004 7.9 6SS 113.5 S3 4571.0 12APR2004 S0 686 1166 S4 45S0.4 19 JUL2004 7.9 672 114.6 S4 4584.5 ItOCr2004 8.1 677 115.3 S3 - 4594.3 * 5 MW49 Values Exceed Upper Control Limit Ncgative U308 Grades Indicate Less Than Dctcction Limit. .180 COGEMA Mining Inc.; NRCDEO2REP Mine Unit 5 Well I.D. 5MW50 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Specific Conductance j± mho/cm Total Alkalinity 1004 134.3 22.7 2004 I Uranium pH mg/i as CaCO3 mg/I Piezometric Elevation msl Date 19IAN 2004 9.0 671 110a 34 13APR 2004 59 673 1124 5.5 4571.4 19jUL 2004 3.7 661 111.9 54 4575.1 la OCT 2004 90 666 111.9 8.3 4573 5 * Values Exceed Upper Control Limit 4561.4 5MW50 Negative U30S Grades Indicate Lcss Than Detection Limit. 181 NRCDEO2REP Mine Unit 5 Well I.D. 5MW51 Water Quality Parameters Units Upper Control Limit COGEMIA Mining Inc. CHRISTENSEN RANCH-. PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Specific Conductance mhocm . 22.7 Total Alkalinity 2004 Uranium pH - mg/l as CaCO3 mg/I , . 134.3 1004- Piezometric Piezometric Elevation msl Date 19JAN2004 8.0 689 , 12APR 2004 8.1 686 - 19JUL2004 7.9 19 ocr 2004 8.0 115.5 8.3 8.4 673 115.9 1144 676 115.9 82 , 8.4 4573.8 4583.3 ., ., -SMW51 * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. .'! 82 4587.6 45S8.4 COGEMAIining Inc. NRCDEQ2REP Mine Unit 5 Well I.D. 5MW52 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH: PERIMETER ORE ZONE MONITOR WELL: Chloride Specific Conductance mg/I 22.7 p Total Alkalinity mho/cm 2004 Uranium pH mg/i as CaCO 3 1004 mg/i Piezome Elevation msl 134.3 Date 19 JAN 2004 8.7 692 1160 8.3 4562.5 13 APR 2004 8.7 692 116.3 8.4 4573.1 19JUL20(14 8.7 677 115.5 8.4 4576 5 210CT 2004 88 685 117.3 8.2 4575.6 * Values Exceed Upper Control Limit 5MW52 Negative U308 Grades Indicate Less Than Detection Limit. 183 COGEMA Mining Inc.- NRCDEQ2REP Mine Unit 5 Well I.D. 5MW53 Water Quality .. Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Total . Alkalinity Specific Conductance mg/i 22.7 ji mho/crn - mg/l as CaC , 2004 msl mg/I 3 134.3 , 1004 .. Date 19IAN 2004 £3 . 693 115.2 12APR 2004 S.3 . 691 117.5 19 JUL 2004 S.1 676 19OCT 2004 S2 . 6S1 ; ;* Values Exceed Upper Control Limit ,. 4573 0 t3 I, 116.4 S4 115.3 8.2 ,, I I. . 4593.4 . I 4586 4 . 4591.4 ..-. 5MW53 Negative U308 Grades Indicate Less Than Detection Limit. :. 184 '.-:" Piezometric Elevation Uranium pH !. V I...... . COGENIA Mininig Inc. NRCDE02REP Mine Unit 5 Well I.D. 5MW54 .Water Quality CHRISTENSEN RANCH: PERIMETER ORE ZONE MONITOR WELL, I Chloride Parameters Units Upper Control Limit Specific Conductance mg/I 22.7 Total Alkalinity 2004 Ui:m ! PiezometriŽ Elevation pH rmg/l as CaCO3 1g mho/cm 1004 mg/ msl 134.3 Date 19 JAN 2004 11 6 734 1349 SO 12 APR 2004 12.9 751 143.1 S.l 4575.4 19 JUL 2004 13.4 741 148.1 SI 4579.1 21OCT2CO4 12.9 754 143.7 SO 4583 6 * Values Exceed Upper Control Limit 4564.5 5MW54 Negative U308 Grades Indicate Less Than Detection Limit. 185 COGEMAMining Inc. NRCDE02REP -CHRISTENSEN RANCH - PERIMETER ORE ZONE MONITOR WELL Mine Unit 5 Well I.D. 5MW55 i 2004. I - : water W Quality Parameters Units :: Upper Control Limit I, Chloride -mgll Specific i Conductance -. p mho/cm 22.7 * Total Alkalinity Uranium' pH Piezometric Elevation . msl mg/l -.mg/l as CaCO3 1004 : - ;- 134.3 I Date 191AN2004 t2 692 - 110.7 12APR 2004 8.4 692 i 115.3 19JUL2004 8.3 19 OCr 2004 8.7 . 23 - : 4571.1 45S0 I .24 676 113.2 8.3 4554.0 681 117.2 2.2 45SI.3 .I * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. :186 5MW55 COGEMA Mining Inc.: NRCOEO2REP Mine Unit 5 Well I.D. 5MW56 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL. Chloride Specific' Conductance mg/i 22.7 2004 Total -, Alkalinity It mho/cm Uranium pH mg/i as CaCO3 1004 mg/I Piezometric Piezometric Elevation msl 134.3 Date 19JAN 2004 11.3 732 122.3 12APR 2004 12.3 737 131 0 8.4 4571.3 19JUL2004 114 723 3125.9 84 457S.1 19OCT 2004 11.0 722 123.2 82 4572.0 * Values Exceed Upper Control Limit 4563 0 5MW56 Negative U308 Grades Indicate Less Than Detection Limit. 187 COGEMA Mining Inc. NRCOE02REP CHRISTENSEN RANCH : PERIMETER ORE ZONE MONITOR WELL Mine Unit 5 Well I.D. 5MW57 Water Quality Parameters ' | Units Upper Control Limit Chloride I. mg/l - Specific Conductance . 22.7 , p mho/cm Total Alkalinity. 2004 ,mg/l as CaCO3 1004 Piezometric Uranium pH mg/l E Elevation ,, ' 134.3 msl . Date 191AN 2004 8.6 695 12APR2004 84 694, 19JUL2004 8.2 6g0 18 OCT 2004 8.3 685 - 115.3 8.3 4570.4 115.6 84 4579.0 113.1 83 4582.7 1142 S2 4585.0 , 5MW57 . * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 188 COGEMTA Mining Inc. NRCDE02REP Mine Unit 5 Well l.D. 5MW58 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/I Total Specific Conductance ji mho/cm .Alkalinity 1004 134.3 22.7 2004 - pH mg/l as CaC0 3 Uranium Piezometric .Elevation mg/I mssl Date 19JAN 2004 89 708 116.5 8.4 4563.2 12APR2004 8.9 701 1162 8.5 4571.3 201JL 2004 8.5 690 109.3 8.5 4575.5 190CT2004 8.7 694 115.5 8.3 4568 9 * Values Exceed Upper Control Limit 5MW58 Negative U308 Grades Indicate Less Than Detection Limit. 189 COGEMA;Mining Inc.; NRCOEO2REP -CHRISTENSEN.RANCH PERIMETER:ORE ZONE MONITOR WELL Mine Unit 5 Well I.D. 5MW59 .: -Water Quality Parameters Units Upper Control Limit Chloride mg/l - Specific Conductance mho/cm I: 22.7 1004 2004 Total Alkalinitym Piezometric Piezometric . Elevation Uranium pH .sl mg/ ,.mg/l as CaCO3 134.3 1 Date .. 19JAN2004 S6 691 *1139 83 12APR2004 8.6 692 115.1 84 19JUL2004 3.4 677 113.7 84 18 Cr 2004 S.5 6S2 113.5 8.3 * Values Exceed Upper Control Limit 4567.7 :, . 4577.0 4579 4 : . 4573.7 I SMW59 Negative U308 Grades Indicate Less Than Detection Limit. t I190 COGEMA Mining Inc.- NRCDEQ2REP Mine Unit 5 Well I.D. 5MW60 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCHPERIMETER ORE ZONE MONITOR WELL Chloride mg/l Specific Conductance I 1i mho/cm 23.7 Total Alkalinity 2004 I Piezometric pH . Elevation mg/l as CaCO3 779 mg/l 191.3 . msl . , Date 19JAN 2004 9.1 860 146.3 81 4563 0 13APR2004 9.8 771 180.9 a2 4571.0 20 JUL 2004 1ZO 648 191.1 8.4 4575.5 19OCT 2004 103 644 194.9 8.2 4578.5 * Values Exceed Upper Control Limit 5MW60 Negative U308 Grades Indicatc Less Tlan Detection Limit. <-/#e 191 COGEMA Mining Inc. NRCOE02REP CHRISTENSEN RANCH - : PERIMETER ORE ZONE MONITOR WELL Mine Unit 5 Well I.D. 5MW61 Water Quality Parameters Units | |Upper Control Limit Chloride mg/l - Specific Conductance ., pmho/cm Total Alkalinity 1004. 134.3 22.7 2004 Piezometric Uranium pH mg/l :mg/lasCaCO Ut 31 - Elevation msl -. :. ., I Date 20 JAN 2004 *5 693 116.2 8.3 4568.9 12 APP 2004 92 692 121.8 8.3 4578.2 19 JUL 2004 8.4 678 114.7 83 4580.6 19 OCr 2004 8,7 664 1174 8.1 - 4583 6 ., ! 5MW61 . * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. " i192 COGEMA Mining'fn.; NRCDEO2REP Mine Unit 5 Well I.D. 5MW62 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH: . PERIMETER ORE ZONE MONITOR WELL Chloride Specific Conductance mg/i 22.7 Total Alkalinity . [t mho/cm Uranium pH mg/I mg/I as CaCO3 1004 2004 . - Piezometrion Elevation msl 134.3 Date 20 JAN 2004 9.5 761 124.3 8.3 4562.3 13 APR 2004 96 737 124.0 I4 4530.4 19 UL 2004 96 705 122.4 3.3 4532.7 130CT2004 132 752 143.3 S0 * Values Exceed Upper Control Limit 4533.1 5MW62 Negative U308 Grades Indicate Less Than Detection Limit. 193 COGEMA Mining Inc. NRCDEQ2REP -CHRISTENSEN:RANCH Mine Unit 5 Well I.D. 5MW63 | Water Quality - 'Parameters Units Upper Control Limit ' 2004 - PERIMETER ORE ZONE MONITOR WELL: Chloride mg/l :; Specific! Conductance* . 22.7 j. mho/cm Total Alkalinity Uranium pH msl mg/l mgl asCaCO3 1004 - Piezometric Elevation I!. 134.3 . I I Date :: 211AN2004 87 * 690 , llAPR2004 88 689 ! 20 1UL 2004 88 673 . 19OCT 2004 8 8 I- 676 . w . * Values Exceed Upper Control Limit 1148 83 4567.9 1149 84 4575.8 1107 82 4579 9 115.5 8.1 4578.2 5MW63 Negative U308 Grades Indicate Less Than Detection Limit. 194 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 5 Well l.D. 5MW64 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH ; PERIMETER ORE ZONE MONITOR WELL; Chloride mg/l Specific Conductance [L mho/cm 22.7 Total Alkalinity 2004 Uranium pH mg/l as CaC0 3 1004 mg/I Piezometric Elevation mst 134.3 Date 21 JAN 2004 S.5 7SS 108 a 8.4 4563.5 13APR2004 8.9 752 112.1 8.5 4571.1 19JUL 200J S.7 736 1126 84 4573 3 19OCT 2004 88 739 113 S 8.2 4578. I * Values Exceed Upper Control Limit 5MW64 Negative U308 Grades Indicate Less Than Detection Limit. 195 * COGEMAtMining Inc. NRCOEQ2REP Water Quality Parameters Units Upper Control Limit 2004 CHRISTENSEN RANCH PERIMETER-ORE ZONE MONITOR WELL Mine Unit 5 Well I.D. 5MW65 Chloride - mg/l Specific Conductance. P mhofcm Total Alkalinity : mg/i as CaC 734 'i 24.9 3 pH :mg/l Uranium, - Piezometric Elevation msl 128.1, Date 21 JAN 2004 9.4 704 1142 82 4568.8 13 APR 2004 9.4 702 1152 8.3 4575.9 20 JUL 2004 9.4 1098 a2 4579.8 19 oCr 2004 94 114.5 8.0 * 6683 . 688 ; . . Values Exceed Upper Control Limit~ 4575.7 SMW65 Negative U308 Grades Indicate Less Than Dctection Limit. to 196 COGEMA MWining Inc'' NRCDE02REP Mine Unit 5 Well I.D. 5MW66 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Specific Conductance ji mho/cm Chloride mg/l 22.7 Total Alkalinity Uranium pH mg/i as CaCO3 1004 2004 1 mg/l PiezometriŽ Elevation msl 134.3 Date 21 JAN 2004 16.1 942 113.8 82 4564.6 I5 APR 2004 20.3 967 1356 83 4572.1 20 JUL 2004 24.0 * 1049 32 4574.9 21 JUL 2004 24.1 * 1054 175.1 80 4574.9 27 JUL 2004 24 4 02 AUG 2004 264 09 AUG 2004 * 166.4 * 1030 * 170.0 80 4574.9 * 1052 * 1I9.S 8 79 4574.0 25.4 * 1064 * ISO 79 4574.9 I I AUG 2004 23 6 * 1063 * 161.3 S0 4574 S 19oCr 2004 304 * 1103 * 209 2 78 4575 S * Values Exceed Upper Control Limit * 5MW66 Negative U308 Grades Indicate Less Than Dtcction Limit. 'J/ 197 COGEMA Mining Inc. NRCDE02REP CHRISTENSEN RANCH I PERIMETER ORE ZONE MONITOR WELL Mine Unit 5 Well I.D. 5MW67 I I Water Quality - Parameters Units Upper Control Limit Chloride - mg/I Total Alkalinity Specific Conductance . prnho/cm p 22.7 2004 Uranium ' pH mg/las CaCO3 1004' mg/ 134.3 - Piezometric Elevation . . msl I I Date :* 21 JAN 2004 7.3 41 13 APR 2004 7.7 S12 201JUL2004 7.8 751 190CT2004 86 731 93.3 . 8.2 4569.4 100.5 8.3 4626.1 . 93 2 8.2 4579.7 :- 1067 80 Negative U308 Grades Indicate Less Than Detection Limit. 4583.4 .., Values Exceed Upper Control Limit . 198 .. 5MW67 COGEMA Mining Inc. NRCOEQ2REP Mine Unit 5 Well I.D. 5MW69 CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL 2004 Date 21 JAN 200U4 a 706 111.5 a5 4567 6 13APR 2004 1.3 745 105.1 8.5 4576 4 20 JUL 2004 S.1 746 992 8.4 4578.3 19OCT 2004 8.3 758 1053 8.I . * Values Exceed Upper Control Limit 4579.4 SMW69 Negative U308 Grades Indicate Less Than Detection Limit. 199 COGEMA Mining Inc. NRCDEO2REP Mine Unit 6 Well I.D. 6MW17-2 CHRISTENSEN RANCH: PERIMETER ORE ZONE MONITOR WELL 2004: . . I Date 26 1AN 2004 5.3 1310 723 SI 4470.8 23 FEB 2004 5.2 1305 71.2 8.1 44725 23MAR2004 5.1 1299 71.9 8.1 4474 8 19APR20D4 5.3 1304 72.2 SI 4478 4 24J AY 2004 5.4 1304 73.2 8.1 4480.7 21JUN2004 5.0 12S0 72.4 8.2 4484 8 27JIUL2004 5.2 1266 71.2 8.0 4485.6 16AUG2004 5.3 1279 72 8 8.2 27SEP2004 5.4 1271 72.6 8.1 4497.4 4491.8 260CI'2004 53 1278 75.5 7.9 4490 9 09 NOV 2004 5.4 125S 70.1 7.8 4490 9 29 DEC 2004 5.1 1280 63 3 8.0 ki32.0 * Values 6MW17-2 Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. ; 200 COGEMA Mining Inc. NRCOEO2REP Mine Unit 6 Well I.D. 6MW19 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH: PERIMETER ORE ZONE MONITOR WELL Chloride Specific Conductance mg/l 20 Total Alkalinity 2004 pH mg/I as CaC0 3 p'mho/cm Uranium Piezometric Elevation mg/I rMsl 95.2 1576 Date 26 JAN 20(4 S.1 1331 73.5 8.0 4526.5 23 FEB 2004 5.2 1321 74.5 8.1 4525.4 23 MAP 2004 5.1 1310 72.3 8.1 4524.7 I9APR 2004 5.3 1319 75.0 8.1 4523 6 24 MAY 2004 5.3 1311 74 9 8.1 4522.3 21 JUN2004 5.3 12s5 78.1 S.1 4525.6 27 JUL 2004 5.0 1279 73.4 7.9 4527 8 17AUG 2004 5.0 1284 72 6 SI.1 45338.9 27 SEP2004 5.0 12s89 72.4 81 4534.7 26 OCr 20(14 5.0 1289 73.6 7.9 4533.7 09 NOV 2004 5.0 1277 70.4 7.9 4530 8 29 DEC 2004 4Y 1295 64.3 a0 4537.3 * Values Exceed Upper Control Limit 6MW19 Negative U308 Grades Indicate Lcss Than Detection Limit. K>: 201 COGEMA Mining Inc. NRCOEQ2REP CHRISTENSEN RANCH, PERIMETER ORE ZONE MONITOR WELL Mine Unit 6 Well I.D. 6MW21 Water Quality Parameters Units Upper Control Limit Chloride -mg/l Specific: Conductance ; p mhokm 20 Total Alkalinity .. 2004 Uranium pH ;mg/l as CaCO 1576 I Piezometric Elevation mg/l 95.2 msl . ,, ; I - . . Date . - 4529.9 26 JAN 2004 5.3 1269 7S9 8.0 23 FEB 2004 5.1 1273 758 8.1 23 MAR 2004 5.4 1280 82.4 8.1 19APR 2004 5.3 1291 804 8.2 S. I 24 MAY 2004 5.7 1269 85.1 8.2 21 JUN 2004 5.3 1255 788 8.2 27 JUL 2004 5.3 1253 763 7.9 16 AUG 2004 5.4 1265 75.5 8.1 27 SEP 2004 5.4 1265 74 2 8l 26 OCT 2004 5.2 - 1265 75.1 7.9 4526 9 09 NOV 2004 5.4 , - 1257 71.1 7.9 4523.0 29 DEC 2004 5.2 1276 66.7 80 4532_1 I ,, : II 4531.7 - 4513.0 . , 4523.2 4522 9 4520.0 .. - .4510 6 4533 0 *. 4529 0 . 6MW21 * Values Exceed Upper Control Limit * Negative U308 Grades Indicate Less Than Detection Limit. -202 COGEMA Mining Inc.' NRCDE02REP Mine Unit 6 Well I.D. 6MW23 * Water Quality CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride . - Parameters Units Upper Control Limit Specific Conductance mg/l 20 Total Alkalinity 1omho/cm 2004 Uranium pH mg/l as CaCO 3 1576 .. .I mg/l . Piezometric Elevation rnsl 95.2 Date 261AN 2004 5.7 1235 70.6 84 4542.2 23 FE132004 5.4 1243 70.5 S3 4547.9 23 MAR 2004 5.3 1236 71 2 S.4 4551.6 19APR2004 5.3 1240 71.2 S4 4542.2 24 MAY 2004 5.4 1225 692 8.4 4539.2 21 JUN 2004 5.4 1204 702 8.5 4525.2 27 JUL 2004 5.2 1218 702 82 4529 5 16AUG 2004 5.4 1222 70.5 8.4 4535.5 27SEP2004 5.7 1210 71.4 85 4532 0 26 OCT 2004 53 1203 68.7 8.3 4530.1 09NOV2004 5.3 1209 69.3 8.2 4525.6 29 DEC 2004 54 1226 60.7 S.5 4534.5 * Values Exceed Upper Control Limit 6MW23 Negative U308 Grades Indicate Less Than Detection Limit. 203 COGEMA Mining Inc. NRCDEO2REP Mine Unit 6 Well I.D. 6MW25 WNater Quality I . -.Parameters ; ~ Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Specific; Conductance * .. Ip mholcm 20 Up. 1576 :) Total . Alkalinity 2004 pH mg/l as CaCO3 C1 9 95.2 - Uramum - Piezometric Elevation mg/l msl i. - Date * 73.8 26 JAN 2004 5.3 1256 S.2 4557.6 23 FEB 2004 5.1 1256 69.5 8.0 4557.2 23MAR2004 5.3. 1241 712 S3 4561.2 19APR2004 55 1252 713 S.2 4544.4 24 MAY 2004 5.5 I244 75.7 5.3., .1219 74.0 26 JUL 2004 5.7 - I12S 75 4 7.8 S2 8.2. 4538.2 21 JUN 2004 ISAUG 2004 5.7 .1215 73.0 8., 4532.6 21 SEP2004 5.2 .1231 72.7 B.l 4529.5 260CT20D4 5.3 1236 75.0 SO 4528.3 O N'OV 2004 5 3, .1237 70.1 8.l,, 4525.9 29 DEC 2004 5.1 .1268 64.5 83 4532.0 * Values - 4543 0 4524 0 -6MWV25 Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. -- 204 NRCDEQ2REP Mine Unit 6 Well I.D. 6MW27 Water Quality Parameters Units Upper Control Limit COGEMA Mining Inc., CHRISTENSEN RANCH' PERIMETER ORE ZONE MONITOR WELL Chloride Specific Conductance mg/i Ii 20 mho/cm Total Alkalinity-' 2004 pHl mg/i as CaC0 3 1576 Uramum . mg/i UuPiezometric .Elevation msl 95.2 Date 26MAN 2004 5.8 1225 71.8 aS 4569.9 23 FEB 2004 5.2 1291 70.7 8.5 4564.1 23 'AAR 2004 5S 1293 74.9 8.3 4566 2 19APR 2004 7.1 1223 85.3 S.2 4534 8 24 MAY 2004 5.5 1197 69.7 8.3 4538.6 21 JUN 2004 66 957 1506 8.3 4542.7 26 JUL 2004 6.8 1003 145S 8.3 4516.7 I2 AUG 2004 7.3 1036 1369 S.l 4528.0 2SSEP 2004 6.7 1021 128 2 S2 4523.3 260Cr 2004 6.7 1003 1332 S.2 4523.1 09 NOV 2004 6.5 1008 125.7 8.l 4519.5 29 DEC 2004 63 1050 115.0 S.2 4526 0 * Values Exceed Upper Control Limit 6MW27 Negative U308 Grades Indicate Less Than Detection Limit. 205 COGEMA-Mining Inc. NRCOE02REP CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Mine Unit 6 Well I.D. 6MW29 I. . ; .. Water Quality Chloride . Parameters Units Upper Control Limit mgll . Total .. Alkalinity Specific Conductance. . ,; 20 mho/cm 1576 2004 msl mg/l ..mg/lasCaCO3 x Piezometric . . Elevation Uranium pH , 95.2 , ; . Date 26 JAN 2004 5.7 1300 77.9 8.7 24 FED 2004 5.7 1240 69.s S6 23 MAR 2004 5.7 1206 68.3 8.7 19 APR 2004 37 1190 419 9.9 4512.4 24 MAY 2004 5.7 1183 4Z0 8.9 4510.2 21 JUN 2004 5.4 1275 67.7 10.7 4521.5 27 JUL 2004 5.9 12144 67.2 10.3 4506.4 ISAUG2004 57 1166 65.t 9.7 4520.7 28 SEP2004 5.6 1265 66E 10.6 260C'r2004 5.2 1259 645 106 4515.5 * 4515.1 09 NOV 2004 5.5 1250 53.5 10.3 4515.1 270EC2004 55 1267 620 10.7 4521.3 * 4565.2 4561.3 * 4556.6 - 6MW29 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. I .;206 COGEIMA Mining Inc. NRCDE02REP Mine Unit 6 Well I.D. 6MW3 1 Water Quality Parameters CHRISTENSEN RANCH: PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Specific Conductance mg/l 20 Total Alkalinity fi mho/cm 2004 Uranium pH mg/I as CaC0 3 1576 mg/I -, Piezometnc .Elevation msl 95.2 Date 26JAN 2004 9.1 1335 83 8 81 4535 4 24 FEB 2004 10.3 1362 91.0 S1 4531.2 23 MAR2004 11.0 1369 97.5 80 4530 0 19APR 2004 9.6 1356 91.5 8.0 4493.3 17MAY 2004 8.0 1308 87.9 8.1 4488.1 21 JUN 2004 7.7 1280 Sl 4496.9 27 1UL2004 85 1284 7.9 4489.5 17AUG 2004 80 1289 Sl 4509.9 28 SEP 2004 10 4 1323 983 79 4503.0 26 OCT 2004 11.1 1343 102.6 7.8 4502.3 09 NOV 2004 7.4 1280 93 4 27 DEC 2004 B.5 1338 84 8 87.2 90.4 88.7 8.0 8.1 4502.3 4504.7 6MW3 1 * Values Exceed Upper Control Limit Negaitive U308 Grades Indicate Less Than Detection Limit. '- 207 COGEMA;Mining Inc. NRCDEQ2REP CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Mine Unit 6 Well I.D. 6MW33 *Water Quality Parameters Units , Upper Control Limit Chloride I mg/l I Specific Conductance , p mho/cm 20 Total Alk~alinity . 2004 Piezometric r mg/l as CaCOQ. 1576 Piezometric .. Elevation Uranium pH mg/l 95.2 . msl . I Date 26 JAN 2004 54 12S5 77.0 S.1 4533.7 23 FED 2004 5.4 1279 74 2 92 4528 2 22 MAR 2004 50 1275 72.7 92 4531.7 19APR 2004 5.1 1292 74.7 92 4506.3 17 MAY 2004 50 1262 73.5 92 4500.9 21 JUN 2004 50 1247 73.7 83 26 JUL 2004 5.1 1231 73.7 Sl 16AUG 2004 52 1259 73.3 90 4496.7 27 SEP 2004 53 1258 72.8 91 4489.1 ocr 2004 5.0 1249 74 2 9.1 4488 9 09 NOV 2004 5.4 1247 71.4 S0 4S4 9 27 DEC 2004 5.2 1219 65.9 9.2 489.7 26 ;; * .* 4496 0 * - 4483.1 6MW33 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. i -208 COGEMA Mining Inc. NRCDEo2REP Mine Unit 6 Well I.D. 6MW34 Water Quality Parameters CHRISTENSEN RANCH: PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Specific Conductance mg/I 20 jI Total Alkalinity mho/cm 2004 Uranium pH mg/i as CaCO3 1576 mg/I Piezometric Elevation rnsl 95.2 Date 26 JAN 2004 4.9 1352 69 0 8.0 4513.2 23 FEB 2004 5.1 1329 67.0 S.2 4507.9 23 MAR 2004 50 1344 70.3 8.0 4514.2 19 APR 2004 4S 1343 68.7 S.1 4525.0 24 MAY 2004 5.1 1326 69.2 20 4527.1 21 AUN2004 4 9 1313 69.6 S.1 4532.2 27 JLL 2004 49 1302 639 7.2 4535 0 16 AUG 2004 42 1320 68.3 2.1I 27 SEP 2004 5.0 1322 694 26 OCT 2004 5.0 1324 699 78 4537.5 09 NOV 2004 4.S 1309 65 4 7.2 4534.0 29 DEC 2004 48 1341 609 62 4541.6 * Values Exceed Upper Control Limit 4546.1 4538.3 6MW34 Negative U308 Grades Indicate Less Than Detection Limit. 209 COGEMA Mining Inc. . NRCDE02REP Mine Unit 6 Well I.D. 6MW35 . Water Quality . Parameters CHRISTENSEN RANCH;. PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Units Upper Control Limit Specific; Conductance Total Alkalinity. -.: img/l as CaCO mho/cmr I Piezometric Elevation Uranium pH mg/l .. rnsl 95.2 15761. 20 2004 Date 1285 76.5 7.9 4534.3 1276 75.9 7.S 4528.5 49 1268 74.6 7.9 4530.6 19APR 2004 5.0 1280 75.1 7.9 4511.9 17MAY2004 5.1 1261 75.2 7.9 4508.9 21 UN 2004 5.0 1244 746 9.l 27 JUL 2004 5.2 1245 75.5 7.7 16AUG2004 5.1 1256 74 6 7.9 4491.4 27SEP 2004 5.1 1256 742 7.9 4478 4 260CT2004 5.0 1249 75.1 7.8 4477.9 09 NOV 2004 5.0 1260 72.0 7.6 4477.9 27DEC2004 4.9 1243 66.4 8.0 26 IAN 2004 5.4 23 FEB 2004 5.3 22 MAR 2004 * , - 4501.9 . 4501.9 4485.8 6MW35 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. :210 NRCDE02REP * Mine Unit 6 Well I.D. 6MW36 CHRISTENSEN RANCH ! PERIMETER ORE ZONE MONITOR WELL Water Quality Parameters COGEMA Mining Inc. Chloride Units Upper Control Limit Total Alkalinity. Specific Conductance mg/l 20 g mho/cm 2004 Piezometric ; Uranium pH mg/I as CaCO3 1576 mg/l Piezomnetri~c Elevation msl 95.2 Date 261AN2004 5.8 1214 73.7 80 4511.8 24 FEB 2004 5S 1214 72.5 81 4510 0 23MAR2004 6.1 1180 73.7 82 4504.6 19APR2004 58 1221 72.5 S1 4519.1 ItMAY2004 5.0 1189 704 S.2 4520.S 21 IUN 2004 62 1179 73 0 8.2 4526.1 27 JUL 2004 5.0 1280 70 1 7.8 4532.7 18AUG2004 5.8 1180 72 2 8.0 4543.6 28SEP2004 6.4 1155 76.7 80 4534.8 26 OCT 2004 5.8 I188 73 0 7.9 4534.2 09 NOV 2004 5.8 1198 71.7 7.9 4534.2 27DEC2004 56 1207 64.3 80 4541.4 * Values Exceed Upper Control Limit 6MW36 Negative U308 Grades Indicate Lcss Than Detection Limit. 211 COGEMA Mining Inc. NRCDE02REP CHRISTENSEN RANCH> PERIMETER ORE ZONE MONITOR WELL . Mine Unit 6 Well I.D. 6MW37 Chloride Water Quality Parameters mg/ Units Upper Control Limit - Specific Conductance :-I P mho/cm 20 Total Alkalinity 2004 Urai . u Piezometric Uramium pH .- ng/l as CaCO3 1576 95.2 .Elevation mg/l - msl . ; , . . -.. Date 26 JAN 2004 59 1205 53 2 E.4 4534 9 23 FEB 2004 5.6 1202 52 5 8.5 4529 0 22 MAR 2004 5.3 1197 53.7 E5 4531.2 19APR2004 5.5 1221 59.9 9.5 4516.5 17MAY 2004 5.7 1205 61.9 8.4 4512.0 21 3 2004 5.7 1192 64.1 9.5 4509.1 26 JtL 2004 5.9 11t7 69.0 ' 8.2 4492.0 16 AUG 2004 5.7 1209 66.9 5.7 1215 69.3 9.2 E.3 44721 26 OCr 2004 56 1209 69.5 8.2 4471.5 09 NOV 2004 5.7 120S 67.1 8.0 4471.5 27 DEC 2004 56 1219E 65.1 9.3 4471.9 27SEP2004 * ' Values Exceed Upper Control Limit 4496.6 6MW37 Negative U308 Grades Indicate Less Than Detection Limit. I 212 COGEMA Mining Inc. NRCDE02REP Mine Unit 6 Well I.D. 6MW38 - Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH. PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Specific Conductance 1imho/cm 20 Total Alkalinity S 2004 Uranium pH mg/I as CaCO3 1576 mg/l Piezo metric Elevation msl 95.2 Date 26 JAN 2004 5.2 1320 70.7 S.2 4514.7 24 FEB 2004 5.0 1324 696 3.2 4507.2 23 MAR2004 5.2 2323 72.5 S I 4497.2 19APR2004 50 1324 70.7 1SMAY 2004 52 1299 70.6 S.1 4524.3 21 UN 2004 53 1276 71.3 8.2 4527.1 27 JUL 2004 5.3 1275 71.6 *.0 4522.8 ISAUG2COJ 5.3 1272 702 B.0 4542.1 2SSEP2004 5.2 1291 71.5 8.0 4530 3 26 OCT 2004 5.0 1302 726 7.9 4522.4 09 NOV 2004 5.0 1300 696 7.9 4522.4 27 DEC 2004 44 1323 62.9 S.1 * Values Exceed Upper Control Limit 4520 7 4530.3 6MW38 Negative U308 Grades Indicate Less Than Detection Limit. 213 COGEMA Mining Inc. ^ NRCDEQ2REP CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL,- Mine Unit 6 W~ell I.D. 6MW39 7* Water Quality - Parameters Units - Upper Control Limit Chloride SpecificConductance mg/i I., .mho/cm I 20 Total . Alkalinity>- -pH . Uru Uramum .1 I ,Piezometric IElevation ' mg/I ..mg/lasCaCO3 rnsl . . . . I 95.2: 1576 2004 : Date : 26 JAN 2004 5.2 1264 23 FEB32004 56 1250 22 MAR 2004 5.2 1250 19 APR 2004 5.3 1260 17 MAY 2004 5.2 21 JUN 2004 63.3 8.3 65.S S5 66.4 S4 ! 66.5 S4 * 1239 640 S3 5.3 1230 62.8 S6 26 JUL 2004 5.3 1192 65.9 S.5 68 0 8.2 69.3 S4 69.9 S.0 -- ! , 4537.1 4529.1 4529.9 . .1 .- 4520.7 . 4514.5 :- 4512.3 4501.1 16AUG 2004 5.4 1232 27 SEP 2004 5.7 1236 25 OCT 2004 5.3 1239 09 NOV 2004 5.4 1229 - 67.7 S.l 4477.2 27 DEC 2004 5.5 1220 I 61.9 3.4 4501.9 * Values : 4499.5 * . I .. - Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 214 . 4477.4 447.2 6MW39 I COGEMA Mlining Inc. NRCDE02REP Mine Unit 6 Well I.D. 6MW40 Water Quality Parameters CHRISTENSEN RANCH;. PERIMETER ORE ZONE MONITOR WELL Chloride Specific Conductance mg/l Units Upper Control Limit 20 Total Alkalinity 2004 .' Uranium pH mg/l mg/l as CaCO3 g mho/cm 1576 * Piezometric -Elevation msl 95.2 Date 26 JAN 2004 54 1341 689 8.0 4521.2 24 FEB 2004 53 1325 67.9 S.2 4509.3 23 MAR 2004 5.2 1323 66.5 8.1 4496.5 19APR 2004 5.1 1330 697 8.2 4512.0 28MAY2004 5.3 1296 64 6 86 4515.0 21 JUN 2004 5.0 1296 67.4 S2 4517.7 27 JUL 2004 5.3 1300 73.1 79 4510.9 IS AUG 2004 5.0 1297 70.7 7.9 4536.9 27 SEP 2004 5.7 1304 73.1 82 4533.4 26 0CT 2004 5.3 1314 73.1 7.8 4533.2 09 NOV 2004 50 1305 67 8 7.9 4533.1 27 DEC 2004 5 1332 2 60S 8.2 4537.9 * Values Exceed Upper Control Limit 6MW40 Negative U308 Grades Indicate Lcss Than Detection Limit. 'KJ 215 } COGEMA Minin g'Inc., NRCDE02REP CHRISTENSEN RANCH -1 PERIMETER ORE ZONE MONITOR WELL Mine Unit 6 Well I.D. 6MW41 Chloride Water Quality I-Parameters mg/l Units Upper Control Limit Specific. Conductance .. 20 -t mho/cm 2004 - Total Alkalinity pH -mg/l as CaCO3 . I Piezometric Elevation Msl : Uranium mg/i .. . I 95.2 1576 ; . Date I .. 26 1AN 2004 5.7 125 4531.s 5.7 1276 83.4 83.3 8.0 23 FEB 2004 7.9 4524.9 22 MAR 2004 6.4 1274 902 8.8 4526.5 4318 5 19APR 2004 6.4 12s5 88.3 80 17 uAY2004 6.1 1262 83.9 81 4513.4 21 JUN 2004 5.9 240 820 8.2 4510.7 26 JUL 2004 54 1235 79 0 sI 4497.5 16AUG 2004 5.6 *1247 77.7 7.9 27 SEP 2004 5.7 1249 789 7.9 250cr 2004 5.3 124s 76.3 7.7 4458 2 09 NOV 2004 5.4 77.1 7.7 44582 27 DEC 2004 5.2 1241 1234 69.0 82 .. ; - - 451 S.5 4491 .6 * 4458.3 4479.3 6MW41 * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. ., '. 216 COGEMIA Mfining Inc. NRCOEQ2REP Mine Unit 6 Well I.D. 6MW42 - Water Quality Parameters CHRISTENSEN RANCH: PERIMETER ORE ZONE MONITOR WELL Chloride Units Upper Control Limit Specific Conductance mg/l 20 Total Alkalinity - 1 mho/cm Uranium pH mg/l as CaCO 3 1576 2004: ' mg/I . PiezometridElevation msl 95.2 Date 261AN2004 5.0 1355 73 0 30 4521.1 23 FEB 2004 50 1353 694 4521.6 22 MAR 2004 5.0 1335 68.5 B.1 30 19APR 2004 5.0 1345 68.1 3.0 4505.3 17 MAY2004 4.9 1324 67.5 3.2 4508 4 2111UN2004 4.9 1313 69.3 3.1 4517.4 26JUL 2004 4.9 1292 63.0 30 17AUG 2004 4.9 1303 69.3 2SSEP 2004 5.3 1310 70.0 79 4524 4 260CT 2004 5.0 1294 6S.7 30 4523.1 09 NOV 2004 5.1 1300 65 6 7.9 4528.1 27DEC2004 43 1327 610 8.0 4527.8 * Values Exceed Upper Control Limit 4501.S 45160 4532.4 6MW42 Negative U308 Grades Indicate Less Than Detection Limit. 217 COGEMA Mining Inc. NRCDEO2REP Mine Unit 6 Well I.D. 6MW43 * Water Quality Parameters Units : Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Specific Conductance . Total Alkalinity ,; -:mg/l as CaCO3 20 , rnho/cm 1576 2004 Piezometric Elevation Uranium pH mg/I msl 95.2 i II ; Date 26 JAN 2004 54 1286 79.1 80 4533.1 23 FED 2004 54 1285 79.3 81 4527.4 22MAR2004 5.5 1278 80.7 8.1 4528 9 19APR2004 5.6 1291 80.8 80 4517.8 17MAY2004 5.4 1269 77.S 8.0 4514 0 21JLN2004 5.7 1249 79.1 82 4509.9 261UL2004 5.3 1244 76.0 S.l 4494 6 - 16AUG2004 5.5 1255 76.1 80 44S7.9 27 SEP 2004 57 125S 76.2 St. 4453.9 250CT 2004 5.3 1256 74 3 7.8 4453.5 09 NOV 2004 5.3 1246 72.7 7.9 4453.5 29 DEC 2004 5.2 1267 67.2 8.1 4496.9 ** - Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. '218 .; 6MW43 COGEMA MininigInc. NRCDEQ2REP Mine Unit 6 Well I.D. 6MW44 Water Quality . Parameters CHRISTENSEN RANCH . PERIMETER ORE ZONE MONITOR WELL Chloride Specific Conductance mg/l Units Upper Control Limit 20 Ft mho/cm 1576 Total Alkalinity 2004' Uranium pH mg/l as CaCO U3 95.2 mg/i ; Piezometric~ Elevation msl Date 26 JAN 2004 50 1344 67.9 S.2 4529.0 23FEB2004 5.1 1338 69.0 8.3 4511.6 22MAR2004 5.1 1317 64.5 12 4514.0 19APR 2004 51 1323 67.3 8.5 4496.6 51 12S0 74 S S1 4495.2 21 JUN 2004 49 1306 665 8.3 4510.5 26JUL2004 50 1294 68.5 SI 4513.2 16AUG 2004 5.0 1310 692 S2 4523.3 2SSEP2004 5.2 1306 70.5 1.2 4518.0 26 OCT 2004 5.0 121S 68.7 1.2 4517.7 09NOV 2004 5.4 1294 66.4 10 4517.7 27DEC2004 5.0 1313 59.8 18MAY 2C04 * - Values Exceed Upper Control Limit 83 4530.2 6MW44 Negative U308 Grades Indicate Less Than Detcction Limil 219 COGEMA-Mining Inc.. NRCOEQ2REP CHRISTENSENRANCH; PERIMETER ORE ZONE MONITOR WELL Mine Unit 6 Well I.D. 6MW45 Chloride *Water Quality . Parameters Units Upper Control Limit mg/l . Total . Alkalinity .-, Specific Conductance 20 pmholcm - 2004 Uramum pH :.mg/l as CaCO3 1576 U Piezometric . Elevation. . mg/l . ; 95.2 . ;, msl .. . Date 261AN2004 5.2 12S4 76.0 7.' 4530.5 23 FED 2004 5.2 1279 72.9 7.8 4514.4 22 MAR2004 5.1 1274 73.1 7.9 4514.1 19APR2004 5.1 1236 74 4 7.9 4516.9 17 MAY 2004 5.3 1265 75.6 80 4512.9 21 UN 2004 5.2 1247 74.7 7.9 4509.3 261UL2004 5.4 1243 74 4 80 4492.3 16 AUG 2004 5.2. 1252 72.8 7.9 4483.7 27 SEP 2004 5.4 1258 743 7.9. 4454.1 OCT 2004 5.2 1257 73 6 7.7 4453.7 09 NOV2004 5.2 1247 712. 7.7 4453.7 27DEC2004 5.2 1240 66.9 7.9 4497.5 25 t 6MW45 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. : 220 COGEMA Mining Inc. - NRCDEQ2REP Mine Unit 6 Well I.D. 6MW46 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL' Chloride Units Upper Control Limit Specific Conductance mg/I 20.6 Total . Alkalinity ,u mho/cm 2004. Uranium pH mg/I as CaCO3 2427 mg/l Piezometri~-' Elevation rnsl 89.2 Date 26 AN 2004 5.S 1420 72.4 7.9 23 FEB 2004 58 1395 72.1 8.0 4515.5 22 MAR 2004 60 1399 72.0 SO 4521.3 19 APR 2004 5S 1398 72n SO 18 MAY 2004 13.4 1368 76.5 S.2 4488.3 4485.4 21 JUN 2004 6.1 1364 80 4 S.I 4503.5 26 JUL 2004 6.1 1337 792 8.0 4504.8 16 AUG 2004 65 1365 S6.7 S.l 4521.2 2SSEP 2004 6.1 1339 80.7 S.2 4512.0 26 OCT 2004 60 1343 77.9 7.9 4511.7 09 NOV 20U4 59 1345 75.3 7.8 4511.7 27 DEC 20C4 5.6 1374 67.5 S.0 * Values Exceed Upper Control Limit 4532.9 45139 6MW46 Negative U308 Grades Indicate Less Than Detection Limit. 221 COGEMA-Mining Inc. NRCOE02REP CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL -:- Mine Unit 6 Well I.D. 6MW47 ; Water Quality Parameters Units Upper Control Limit Chloride . Specific Conductance mg/l . 20 . p mho/cm Total Alkalinity ,:.mg/l as CaC0 3 . 2004 .;I , . ,: mg/l msl :. - Date 26 JAN 2004 5.4 1273 23 FEB 2004 5.6 1269 .76 6 7.9 4341.8 74 9 t.0 22 NIAR 2004 5.3 1264 4328.0 75.4 t.2 19 APR 2004 5.3 4529.8 1275 74.S 2.1 17 MAY 2004 4516.1 5.3 1259 74.8 t.0 4510.t 21 JUN 2004 5.3 1237 74.5 t12 4307.1 26 JtL 2004 5.2 1235 16AUG 2004 5.1 1244 72.3 32 t2 27 SEP 2004 5.7 1207 77.0 t.2 25 OCT 2004 5.2 1236 72.3 7.8 4426.t 4486.7 09 NOV 2004 5.7 1220 74.2 8.0 4486.7 27 DEC 2004 5.2 1233 L . 67.0 8.2 4498 . , : 73.4 :. 44t8.7 4413.2 6MW47 . * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. '- 222 ,, Piezometric Elevation 'pH 95.2 1576- . .. COGEMA 4ining In&.' NRCDE02REP Mine Unit 6 Well I.D. 6MW48-3 Water Quality 'Parameters - Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL Chloride Specific Conductance mg/l 20 Total Alkalinity ji mho/cm Uranium pH mg/l as CaC0 3 1576 2004' ; mg/l Piezometric Elevation msl 95.2 Date 27 JAN 2004 5.3 1345 70.3 8.3 4524.1 23 FEB 2004 55 1340 67.5 7.9 4516.5 22 MAR 2004 5.3 1328 69.1 8.2 4523.6 19 APR 2004 3.3 1335 69.3 80 4490.4 17 MAY 20)04 5.3 1317 69.8 80 44t9.6 21 JUN 2004 54 1298 71.7 S.l 4502.1 27 JUL 2004 52 1273 68.3 80 4503 4 16AUG 2004 54 1295 69.0 S.2 4518.5 28 SEP 2004 53 1303 69.7 80 4510.2 26 OCT 2004 52 1300 68.9 80 409 6 09 NOV 2004 5.3 1295 67.1 7.8 409 6 27 DEC 2004 5.2 1324 61 4 8.2 4511.4 * Values Exceed Upper Control Limit 6MW48-3 Negative U308 Grades Indicate Lcss Than Detection Limit. 223 COGEMA Mining Inc. Mine Unit 6 Well I.D. 6MW49 t Water Quality | | Specific Total Conductance. ;.grnho/cm it..m Alkalinity Chloride Parameters Units ; Upper Control Limit 2004 CHRISTENSEN RANCH PERIMETERDORE ZONE MONITOR WELL '! mg/I Uranum pH mg/I mg/lasCaCO3 1576 20 ... -. Piezometric Elevation msl -95.2 Date 261AN 2004 5.5 1222 12. 75.9 7.7 4547.0 23 FEB 2004 5i, 1277 76.1 7.8 4526.2 22 MAR 2004 5.4 1270 75.5 7.7 4531.4 19APR2004 5.4 1279 73.9 7.7 4513.4 17 MAY 2004 5.3 1262 73. 7.7 4511.1 21 nJJN 2004 5.6 1244 750 7.9 4508.1 26JUL2004 6.1 . 1226 82.8 8.1 4483.8 16AUG2004 5.3 1237 76.2 7.6 4469.6 27SEP 2004 5.7 1250 77.1 76 4473.8 - 25OCT2004 5.3 1256 71.2 7.5 09NOV2004 S.3 1255 70.6 76 4474.1 4462.2 27DEC2004 54. 1244 665 7.9 4496.1 * Values 6MW49 Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. :224 COGEMA Mining Inc. S NRCDEQ2REP Mine Unit 6 Well I.D. 6MW50 " Water Quality . Parameters Units Upper Control Limit CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL' Chloride Specific Conductance mg/I 20 Total. Alkalinity Uranium pH mg/i as CaCO 3 mho/cm ji 1576 2004 - - mg/i Piezometrioc IElevation msl 95.2 Date 27 JAN 2004 5.3 1329 71.9 8.3 4526.7 23 FEB 2004 5.7 1323 70.5 8I 4522.4 22 .SAR 2004 5.3 1307 71.7 19APR 2004 5.3 1309 71.1 80 4551.6 17 MAY 2004 5.3 1290 70.4 4491.5 22IUN 200X4 5.4 1265 706 80 80 82I 26 JUL 2004 5.3 1285 71.0 80 4495.3 16 AUG 2004 3.2 1300 72.2 80 4501.1 28 SEP2004 5.0 1292 703 81 4504 2 ocr 2004 5.2 1296 68.9 7.7 4504.8 09 NOV 2C04 5.2 1284 660 7.9 4504.8 27 DEC 2004 4S 1213 61.5 8.2 4505.7 25 4* Values Exceed Upper Control Limit 4529.3 4502.4 6MW50 Negative U308 Grades Indicate Less Than Dctection Limit. 'I\, 225 COGEMA-Mining Inc. NRCOE02REP CHRISTENSEN RANCH ! PERIMETER ORE ZONE MONITOR WELL Mine Unit 6 Well I.D. 6MW51 Chloride * Water Quality -Parameters Units Upper Control Limit mg/l K Specific Conductance . , uho/cm 20 Total Alkalinity: mg/l as CaC 2004 i '; Uranium pH 3 mg/Q . : 95.2 1576 ! . I Piezometric . Elevation rnsl Date 27 JAN 2004 5.3 1238 23 FEB 2004 5.5 1280 22 MAR 2004 5.3 19 APR 2004 74.0 S2 4533.1 72.8 8.0 4515.3 1270 73.7 8.0 4523.4 5.3. 12S3 72.3 8.1 , 4514.0 *17EAY2004 5.4 1269 ; 71.9 8.2 4512.0 21 JUN 2004 5.3 1252 - 72.2 8.2 4508.9 27 JUL 2004 5.3 1250 73.1 7.9 - 4487.1 17AUG 2094 5.4 1252 732 8.2 4475.2 27 SEP 2004 5.7 1259 75.1 7.9 4486.0 25 OCT 2004 5.5 1256 . . 72.6 7.7 4485.5 09 NO 2004 56 1247 I 716 7.7 4485.5 27 DEC 2004 5 : 1251 -: 66.2 8.1 4500.5 * Values ,,, ,- Exceed Upper Control Limit 6MW5 1 Negative U308 Grades Indicate Less Than Detection Limit. ':. 226 COGEMA 'Mining Inc. NRCDEQ2REP Mine Unit 6 Well I.D. 6MW52 CHRISTENSEN RANCH: PERIMETER ORE ZONE MONITOR WELL - - ;: -2004 l Water Quality Parameters Units Upper Control Limit Chloride Specific Conductance mg/I 20 Total Alkalinity; g Imho/cm Uranium pH mgAl as CaCQ3 1576 mg/I EPiezometio Elevation msl 95.2 Date 27 JAN 2004 5.7 1251 76.1 8.4 4534.5 23 FEB 2004 64 1229 82.0 83 4531.6 22 MAR 2004 5.7 1241 7S.6 S3 4534.9 20APR2004 5.7 1262 77.6 S.I 4505.S 17 MAY 2004 5S 1246 78.1 8.3 4506 0 21 JUN 2004 5.9 1227 76.7 26 JUL 2004 5.8 1215 76.1 S.I 4497.2 16AUG2004 5.S 1228 76.7 S.l 4500 9 28 SEP 2004 5.7 1213 74.5 S.2 4511.0 25 OCT 2004 5.8 1214 74.0 7.8 4510.7 09 NOV2004 5.9 1210 74.3 7.S 4510.7 27 DEC 2004 56 1239 67.7 S.l 4516 8 * Values Exceed Upper Control Limit 4503.3 6MW52 Negative U30S Grades Indicate Less Than Detection Limit. 227 COGEMA Mining Inc.: NRCDEQ2REP Mine Unit 6 Well I.D. 6MW53 Water Quality Parameters Units . Upper Control Limit CHRISTENSEN RANCH ; PERIMETER ORE ZONE MONITOR WELL Chloride mg/l Specific Conductance. , -,u mho/cm Total Alkalinity., . mg/i as CaCO3 Piezometric . Elevation msl . UraniumI pH mg/l 95.2 1576- 20 2004 Date I * 27 JAN 2004 6.2 1149 23 FEB 2004 6.0 1200 22 MAR 2004 5.3 20 APR 2004 7.6 17MAY2004 6. 221JUN 2004 6.1 26 JUL 2004 6.1 - 36.0 9.7 65.7 89 1190 67.9 8.3 1192 649 8.3 69.1 t.t 2174 67.7 SS 12171 - 71.2 8.7 I2I7 ,. t. . . 4533.5 4513.4 .. 4522.3 , -1 ... 45 14.9 4513.5 4512.0 16 AUG 2004 6.1 122 I 66.7 S6 44928. 27 SEP 2004 60 1169 60.0 S7 4512.0 25 OCT 2004 6.0 22S6 7.8 4511.6 09 NOV 2004 5.S 277 66.S S.5 4510.6 27 DEC 2004 5.6 1179 63.6 S.S 4517.1 .. 736 . s : .. * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. p.228 6MW53 COGEMA- MIining Inic. NRCDE02REP Mine Unit 6 Well I.D. 6MW54 CHRISTENSEN RANCH PERIMETER ORE ZONE MONITOR WELL, 2004 Date 27 JAN 2004 5.7 1264 70.4 8.4 23 FEB 2004 57 1262 68.3 2.3 4526.5 22 MA R 2004 5.6 1252 69.2 82 4529.1 20 APR 2004 56 1244 694 82 4509 2 17MAY 2034 5.7 1237 705 24 4509.4 21 JUN 2004 55 1217 692 23 4508.0 26 JUL 2004 5.7 1211 73.7 16 AUG 2004 5.7 1225 722 82 4493.6 22 SEP2004 * 5.7 1221 73.9 72 4511.4 25OCT 2004 5.7 1234 706 72& 4511.0 09 NOV 2004 5.7 1227 69.6 7.9 4511.0 27 DEC 2004 5.5 1250 64.1 2.2 4511.3 * Values Exceed Upper Control Limit 4530.7 4492.9 6MW54 Negative U308 Grades Indicate Less Than Detection LimiL '\_f 229 ' CHRISTENSEN RANCH PROJECT Interior Shallow Sand Monitor Wells . ' ': I COGEMA Mining Inc. NRCDE02REP CHRISTENSEN RANCH ! . INTERIOR SHALLOW SAND MONITOR WELL:,: Mine Unit 5 AAyeI I.D. MW-11S Water Quality : Parameters Units i Upper Control Limit Chloride . mg/il - Specific i Conductance'. . 22.1 Total . Alkalinity -! pmho/cm tt mg/l as CaCO3 2922 ' 316.6 I 2004 UPiezometric I,' Elevation Uranum' pH mg/ msl - : Date * 21 JAN 2004 6.5 1323 98.4 S.l I 12APR 2004 6.5 1332 100.8 S.: 201UL2004 65 1218 94 S 8.1 ISOCT2004 66 1257 101.7 80 * . * I : . 4632.1 4635.1 I. - 46306 . 4638.3 * MW-I IS Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 230 COGEMA Mining lnc.; NRCDEQ2REP Mine Unit 3 Well I.D. MW46S Water Quality . CHRISTENSEN RANCff: INTERIOR SHALLOW SAND MONITOR.WELL. Chloride Parameters Units Upper Control Limit Specific Conductance mg/l 13.5 Total Alkalinity p mho/cm Uranium pH mg/i as CaCO3 1087 2004' mg/l Piezometrio IElevation msl 184.4 Date 12JAN2004 I0S 1757 144.5 8.0 4548.5 09 FEB 2004 10 1776 2 143.2 B.O 4549 6 15MAR2004 11.0 2803 242.4 80 4549.0 05APR2004 11.2 1929 138.4 80 454S.0 03MAY2004 11.1 1831 133.7 S0 4546.9 15JUN2004 11.1 2777 135 6 7.9 4548.7 12JUL2004 11.4 1713 145 3 8.0 454S.3 09 AUG 2004 10t 1713 242.7 7.9 4548.9 20SEP2004 10.7 1695 141.6 S.0 4549 S 040CT2004 tO8 1667 144.2 8.0 * Values Exceed Upper Control Limit 4549.7 MW46S Negative U308 Grades Indicate Less Than Detection Limit. 231 COGEMA Mining Inc. NRCOEQ2REP Mine Unit 3 Well I.D. MW48S Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL; Chloride mg/l . Specific Conductance. .. 22.2 , ,u mho/cm Total Alkalinity 2004 . mg/las CaCO 3C 1775 :-. Piezometric Elevation Uranium pH rnsl mg/l 268.3- - I I-. 4 Date 12814 * .4551.1 12JAN2004 9.4 ISS 09 FEB 2004 9.t 1897 130.1 7.8 I5MAR2004 9.9 171 129.3 7.9 O5APR2004 94 1180 123.9 7.9 4550.4 IO MAY 2004 97 168 121.4 7.8 4550.2 15JUN2004 99 1809 1301 7.1 12JUL2004 96 1786 1256 7.1 09AUG 2004 9.4 - 112 126 1 7.1 4551 6 205EP2004 9.4 1:21 1255 7.9 4552.1 0J oCr 2004 9.4 1795 127.1 7.7 ,. r * , - 7.9 4552.1 *. 4551.4 : Negative U308 Grades Indicate Less Than Detection Limit. . 232 J4551.1 4551.9 I :* Values Exceed Upper Control Limit 4551.6 ,, ' ' MW48S COGEMA- Mining Inc. - NRCOE02REP Mine Unit 3 Well I.D. MW50S Water Quality Parameters CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL. Chloride mg/l Units Upper Control Limit Specific Conductance 22.2 Total -: Alkalinity z mho/cm mg/l as CaC0 3 1775 268.3 : 2004 - .~.",I Piezometric I Elevation Uranium pH . , msl mg/l - Date 12 JAN 2004 90 136S I863 7.9 4552.8 09 FEB 2004 9.6 1373 177.6 7.9 4553.7 16 MAR 2004 9.2 1346 171.8 80 4553.4 05APR2004 91 1373 167.7 80 4553.2 03 MAY 2004 90 1362 158.8 78 4552.2 15JUN 2004 9.5 1299 169.4 80 4553 2 27 JUL 20(4 96 1290 169.0 76 4552.S 09 AUG 2004 9.1 1338 263.5 7.7 4553.0 20 SEP2004 8.9 1334 155.4 7.7 4553.9 04 OCT 2004 8.7 1340 152.5 78 * Values Exceed Upper Control Limit 4553.8 MW50S Negative U308 Grades Indicate Less Than Detection Limit. ' 233 ' COGEMA Mining Inc. NRCDEQ2REP Mine Unit 3 Well I.D. MW52S Water Quality Parameters Units - CHRISTENSEN RANCH: INTERIOR SHALLOW, SAND MONITOR WELL Specific Total Conductance Alkalinity, Chloride I . mg/l pmho/cm i 22.2 1 1775 12 JAN 2004 7.6 1447 , 09 FEB 2004 7.4 1437 16MAR 2004 7.5 05 APR 2004 Upper Control Limit -2004 , - Uru pH . - ,- ;' .. ,- . Date 1148 a0o 114.6 so 1420 -: 110.2 82. 7.6 1449 - 112.2 8I I OMAY 2004 7.7 1428 115.7 8I 4544.8 15 JUN2004 7.4 1385 ,- 110.5 s.0 4545.8 19 1L 2004 7.1 1377, 102.6 8.2 4545.5 09 AUG 2004 7.2 1429 . 124.5 8.0 4545.8 21SEP2004 7.3 1408 117.S 7.9 4546.6 06 OCT 2004 7.1 1404 I2I.5 8.0 : - * Values Exceed Upper Control Limit 4546.7 .- :234 4546.7 4546.0 I 4545.S 4546.4 . .1 Negative U308 Grades Indicate Less Than Detection Limit. .. I .- ... ,- Piezometric Elevation . msl mg/l - mg/las CaC0 3 268.3 ! MW52S . COGEMA Mining Inc. NRCOE02REP Mine Unit 3 Well I.D. MW54S I Water Quality. - Parameters CHRISTENSEN RANCH - . INTERIOR SHALLOW SAND MONITOR WELL Chloride Units Upper Control Limit Specific Conductance mg/I 22.2 ' Total Alkalinity mho/cm mg/l as CaCO3 1775 268.3 j 2004 n Piezometrvi UranlumElevation pH mg/l mAs Date 13JAN 2004 7.1 1505 1238 Sl 4557.4 09 FEB 2004 74 1500 123.3 8.0 4558.1 16MAR 2004 7.3 1490 124.7 8t 4557.9 05 APR 20D4 76 1507 123 S 8I 4556 4 10MAY 2004 7.2 1487 123 6 80 4556 0 15 AUN2004 7.5 1467 1221 80 4556.5 19 JUL 2004 7.1 1443 1160 8.2 4556.4 09 AUG 2004 7.3 1457 1240 80 4556.5 20 SEP 2004 76 1464 1126.1 7.9 4557.2 04 OCT 2004 7.1 1467 121.6 79 * Values Exceed Upper Control Limit 4556 9 MW54S Negative U308 Grades Indicate Less Ilan Detection Limit. 235 ------ COGEMA Mining Inc.: NRCOEO2REP Mine Unit 3 Well I.D. MW56S Water Quality I :- Parameters Units : Upper Control Limit CHRISTENSEN RANCH: INTERIOR SHALLOW SAND MONITOR WELL Chloride mg/l Total Alkalinity Specific Conductance -pmho/cm 13.5 184.4 . . . . . Uaim Piezometric pH , Elevation 'mg/las CaCO3 1087 ! : -2004 mg/I - .i msl - Date - IJIAN2004 6.5 946 144.1 S.3 4555.4 IIFEB2004 6.6 941 144.0 8.2 4555.0 16t1MAR2004 6.4 940 144.0 8.3 4554.5 05APR 2004 6.6 951 143.9 8.4 4556.8 10OMAY2004 6.1 942 142.7 8.3 4556.5 15JUN2004 6.4: 939 143.1 8.3 4554.3 19JUL 2004 6.1 929 138S 84 4554.7 09AUG2004 6.3 921 144.1 S.3 4554.5 22SEP 2004 6.1 926 1443 84 4554.S 06 0CT 2004 62 927 147.7 84 4554.6 * Values -MW56S Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limnit. ! 236 . NRCDEQ2REP Mine Unit 3 Well I.D. MW58S Water Quality Parameters Units Upper Control Limit COGEMA:Mining Inc.' CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL: Chloride Specific Conductiince mg/I 13.5 Total Alkalinity p mho/cm Uranium pH mg/I as CaCO 3 1087 2004 ,1 mg/i . .- . Piezomevation- -Elevation msl 184.4 Date 13IAN 2004 7.1 980 1258 86 4564.7 II FED 2004 7.5 975 1346 8.4 4564.4 16MAR2004 7.4 963 127.2 86 4563.7 06APR2004 7.1 9t4 1241 86 4561.1 03 MAY 2004 7.4 951 1298 S6 4560.6 16JUN2004 7.1 942 120.1 84 4563.9 19JUL 2004 7.1 952 122.0 86 4564.3 09 AUG 2004 7.3 946 128.0 83 4564.5 22SEP2004 71 944 122.3 85 4564.5 06 OCT 2004 7.1 948 134.1 85 4564.3 * Values Exceed Upper Control Limit MW58S Negative U308 Grades Indicate Less Than Detection Limit. 237 .. COGEMA' Mining Inc. NRCDE02REP Mine Unit 3 Well I.D. MW66S-2 : . Water Quality - Parameters Units Upper Control Limit CHRISTENSEN RANCH - ; INTERIOR SHALLOW SAND MONITOR WELL: Chloride Specific Conductance mg/l 22.2 . juimPho/cm Total Total Alkalinity Piezometric ,Piezometric Elevation Uranium pH ; mg/lasCaCO3 mg/l . . 268.3 1775 2004' . rnsl . ; Date 13iJAN 2004 7.1 1497 121.7 8.1 4570.3 1I FEB 2004 7.0 1495 120 5 8.2 4570.2 16MAR 2004 7.1 1478 121.7 82 4569.9 06 APR 2004 7.2 149S 121.2 *20MAY2004 7.1 1487 122.8 82 16 JUN 2004 7.1 1430 1216 8.2 19 JUL 2004 69 1444 1160 8.2 09 AUG 2004 7.2 1445 1230 8.2 4569.9 22 SEP 2004 7.4 1395 123.7 8.0 4570.3 06 OCT 2004 7.3 1442 125.2 7.8 * - - 4569.9 82 4565.7 4569.9 - . 4569.6 4570.1 MW66S-2 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Dctection Limit. 238 COGEMA Mining Inc.; NRCDE02REP Mine Unit 2 Well I.D. MW68S Water Quality *Parameters CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL- Units Upper Control Limit Specific Conductance Chloride mg/I mho/cm .I 23.5 Total Alkalinity 2004 . ' . . .- Uranium pH mg/l mg/l as CaC0 3 .. .. . ~. .. Piezoletric msl 304 3560 Date 061AN 2004 17.0 13 AN20M4 29.6 2434 227.1 7.4 4573.7 2555 349.2 7.0 21 IAN 2004 4575.2 17 2 2437 216 6 7.3 4575.2 27JAN2004 170 2420 222 0 74 4575 2 03 FEB 2004 17 6 2440 234.7 7.4 4575.2 I I FEB 2OC4 17.2 2432 234.5 7.2 4575.2 OSMAR 2004 19 8 2404 252.5 7.4 4573 6 07JUN 2004 19.2 2255 248 6 7.4 4573.7 07SEP2004 206 2303 267.7 7.5 4575 4 13DEC2004 17.0 2201 214 S 72 * Values * Exceed Upper Control Limit 4574.2 MW68S Negative U308 Grades Indicate Less Than Detection Limit. 'Kf 239 COGEMA Mining Inc. NRCDE02REP Mine Unit 2 Well I.D. MW70S Water Quality . Parameters * * CHRISTENSEN RANCH INTERIOR SHALLOW;SAND MONITOR WELL Chloride mg/l Units Specific Conductance ; rnho/cm Total Alkalinity., . pH Uam ,Piezometric Uramium Elevation msl mg/l mg/l as CaCO3 5861.3 63.4 21365 .- 06JAN 2004 10.5 1792 03 FEB 2004 10.S 1S04 0OMAR 2004 10 7 1776 25.13 07AUN 2004 10.6 1730 244 07SEP 2004 I0.S 1737 - 25.5 S.3 13 DEC 2004 10.5 1753 22.1 S6 Upper Control Limit 2004; Date * Values . ; 23.5 S.9 24.3: S.6 . - S.6 . i 4559.2 . 455S.S I ., 4557.2 4557.1 S.6 4560.2 . . I 455S.7 MW70S Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 240 COGEMA MiningInc. NRCOEQ2REP Mine Unit 2 Well I.D. MW72S Water Quality Parameters CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL. Chloride Units Upper Control Limit Specific Conductance mg/i 63.4 Total Alkalinity Il mho/cm Uranium pH mg/I mg/I as CaC0 3 21365 2004 I Piezome tric Elevation inst 5861.3 Date 06 IAN 2004 11.9 2199 159.9 7.9 4565.1 03 FEB 2004 12 0 2214 1604 7.9 4565.6 01 NMAR2004 12.0 2161 153.6 79 4564.3 07JUN2004 120 2105 153.4 73 4564.1 07 SEP2004 11.7 2090 147.5 73 4565.9 13 DEC 2004 11.4 2104 IU 2 79 * Values Exceed Upper Control Limit 4564.7 MW72S Negative U308 Grades Indicate Less Than Detection Limit. 241 COGEMA Mining Inc. . NRCDEO2REP Mine Unit 2 Well I.D. MW92S Water Quality Parameters ; Units Upper Control Limit CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL' Specific' Chloride Conductan'e mg/l : 23.5 '. .p rnholcm Total Alkalinity i mg/l'as CaCO3 304 :. 3560'i- 2004 Uranium pH ;u mg/ ,,, Piezometric . Elevation Msl -' - : ,-, : Date .- * - 06 JAN 2004 U2V0 2425 149.5 7.5 4570.7 03 FEB 2004 117 2417 , ' 146.8 7.5 .: .I . 4571.5 09 MAR 2004 11.7 2366 - a . 143.2 7.5 4570.6 07 JUN 2004 12.7 2279 ': 1447 7.6 4570.7 07 SEP 2004 11.4 2258 '4: 135.7 7.6 I3 DEC2004 11.5 2210 1I . 132.3 7.6 - * - Values Exceed Upper Control Limit 4572.3 .-. '. 4571.2 . MW92S Negative U308 Grades Indicate Less Than Detection Limit. or -242 -L. COGEMA Mining Inc:' NRCDEQ2REP Mine.Unit 2 Well I.D. MW94S .Water Quality - Parameters Units Upper Control Limit CHRISTENSEN RANCH. INTERIOR SHALLOW SAND MONITOR WELL-':: Chloride Specific . Conductance mg/I 23.5 Total Alkalinity p tmho/cm pH .. mg/i as CaCO 3 3560 2004 Uranium mg/I Piezometric-' Elevation msl 304 Date 06 JAN 2004 13 6 2663 187.5 7.5 03 FES 2004 13.7 2656 187.8 7.4 4551.1 09 MAR 2004 15 2 2606 1874 7.4 4550.5 4550.3 07 AUN2004 14.0 2482 192.5 7.6 4550 3 0 SEP 2004 139 2494 189.7 7.4 4551.7 13 DEC 2004 13.2 2456 169.4 7.3 4551.0 * Values Exceed Upper Control Limit MW94S Negative U308 Gradcs Indicate Less Than Detection Limit. 243 ,COGEMA Mining Inc. NRCDE02REP Mine Unit 2 W~ell I.D. MW96S -. CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL . Water Quality . 'Parameters' " Chloride Unitsm mg/l Upper Control Limit Specific Conductance -, -, Al mho/cm 23.5 -Total ,Alkalinity : mg/l as CaCO3 ;3560 , - ;.2004 pH Uranium . m 304 r Piezometric Elevation .- rnsl - I Date 06 JAN 2004 11.6 2750, 231.9 7.5 03 FEB 2004 117 2742 23316 7.4 09 MAR 2004 11.7 2632 224.4 7.4 07UWN2004 11.9 2542 235.7 7.5 OS SEP 2004 11.6 2556, 229.7, .7.5 14 DEC 2004 Il.0 2516 206.6 7.4 * Values Exceed Upper Control Limit 4567.2 * - 4561 0 4567.4 4567.6 - : 4568 9 4567.3 MW96S Negative U308 Grades Indicate Less Than Dctection Limit. -' 244 I H COGE1MA Miniig' Inc. NRCOEO2REP Mine Unit 2 Well I.D. MW98S Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL Chloride - mg/I Specific Conductance '. ' 63.4 [ mho/cm Total Alkalinity mg/i as CaCO3 21365 : pH . . 2004 Uranium Piezome'iw' Elevation mg/i msl 5861.3 Date 06)AN 2004 13.1 2660 176.1 7.5 4557.0 03 FEB 2004 13.2 2666 176.5 7.6 4553.0 09MAR2004 13.1 2608 172.7 76 4557.0 0711AN2004 13.3 2490 131.9 7.7 4557.2 07SEP2004 12.3 2423 449 7.8 4558.3 13 DEC2004 12.5 2409 143 3 7.5 * Values Exceed Upper Control Limit 4557.4 MW98S Negative U308 Grades Indicate Lcss Than Detection Limit 245 COGEMA Mining Inc. NRCOE02REP Mine Unit 2 Well I.D. MW100S Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL Chloride mg/- Specific Conductance mho/cm .-, 23.5 Total, Alkalinity Uranium pH mg/l as CaCO3 3560 - - 304 .2004 : I Piezometric Elevation mg/I msl , r Date . . 1699 7.5 4554.7 1752 7.4 4555.6 1690 7.5 4554 5 2444 . 172.7 7.5 4554.3 12.7 2437 1646 76 4552.3 12.0 2419 1519 7.5 4555.1 061AN2004 12.5 2623 03 FEB 2004 12.8 2628 09 MAR 2004 12.8 2573 07 JUN 2004 12.S 07SEP 2004 13DEC2004 _ , - - I, I * Values Exceed Upper Control Limit MW100S Negative U308 Grades Indicate Less Than Detection Limit. - . 246 COGEMA Mining Inc. NRCDE02REP Mine Unit 2 Well I.D. MW1 12S Water Quality . Parameters CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL- Units Upper Control Limit Specific Conductance Chloride mg/ I I 63.4 mho/cm 21365 Total Alkalinity pH mg/i as CaCO3 2004 . . . . Uranium mg/i .: .v .. Piezome Elevation msl 5861.3 -. Date 06 JAN 20*04 13.5 3730 507.8 11.3 4552.1 03 FEB 2004 13.1 3610 430.6 11.1 4553.2 09 MAR12004 13.4 3140 296.6 11.1 4552.7 07 JUN 2004 12.9 3700 510 0 I1.i 4552.6 00 SEP 2004 17.0 2200 260.0 10.9 4543.5 14 DEC 2004 14.1 1197 470 9 11.3 * Values Exceed Upper Control Limit 4552.5 MWI 12S Negative U308 Grades Indicate Less Than Detection Limit. 247 , COGEMA Mining Inc. NRCDEQ2REP Mine Unit 2 'Vell I.D. MWI17S -:- Water Quality |Pa'rameters Units * Upper Control Limit CHRISTENSEN RANCH -: - Chloride . 2004 .,- INTERIOR SHALLOW SAND MONITOR WELL; Specific Conductance mg/l - Total Alkalinity.- oasCaCO-mgla I -p 768 . 13.6 U .i mg/I 3 . 144.5 . Piezometric ' Elevation :; msl Uranum . . Date : 06 JAN 2004 7.9 735 137.4 83 - . ..- 4529.8 03 FEB 2004 7.8 736 136.8 Sl . , 4530.6 09 MAR 2004 7.8 729 134 8 83 .- 4529.5 07 JUN 2004 7.9 72s 137.8 82 07 SEP2004 7.S 722 129.4 8.3 .: 14DEC 2004 7.5 733 121.1 83 .I, . * . : : :I . * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. a. ' 248 . I 4529.9 . 4531.7 4530.9 MW1I7S COGEMA Mining Inc. NRCDEQ2REP Mine Unit 4 Well I.D. 4SM-1 Water Quality Parameters CHRISTENSEN RANCH. INTERIOR SHALLOW SAND MONITOR WELL- - : Chloride Units Upper Control Limit Specific Conductance mg/I 8.8 Total Total Alkalinity , - Piezometric 1570 Piezometric Elevation Uranium pH mg/i as CaCO3 Imho/cm 2004. mg/l - msl 142.7 Date OS JAN 20t4 6.5 1279 SSS S.2 4605 02 FEB 2004 6.5 1240 90.3 8.1 4607.0 10 MA R 2004 64 12222 83.1 S.1 4606.4 08 JUN 2004 68 1197 860 81 4606.3 I3 SEP 2004 68 1179 912. 8.2 4610.0 0ODEC 2004 6g 1183 82.7 8.1 4606.9 * Values Exceed Upper Control Limit 4SM-1 Negative U308 Grades Indicate Less Than Detection Limit. ''I 249 COGEMA Mining:Inc. NRCDE02REP Mine Unit 4 Well I.D. 4SM-4 Water Quality . Parameters -CHRISTENSEN RANCH ; INTERIOR SHALLOW SAND MONITOR WELL . Chloride mg/ Units Upper Control Limit Specific Conductance . 8.8 -, , mho/cm Total Alkalinity ..:, 2004: ~ ~ * ,~ * mg/ .: mgll as CaCO 3 1570 1 Piezormetric Elevation , Uranium pH 142.7 - msl I Date 05 JAN 2004 6.5 1092, 109.4 7.9 4592.8 02 FEB 2004 6.5 - 10SS 103.9 7.S 4594.0 09 MAR 2004 6.8 1078 - 109.8 7.9 4593.6 14JUN 2004 6.8 1052 :; 106.5 7.8 13 SEP2004 6.5 1090 104 2 7.9 0 DEC 2004 64 1073 94 9 7.9 * , . 2 4594.0 I 4SM-4 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 1250 4595.0 4594.1 S COGEMA Mining Inc. NRCOE02REP Mine Unit 4 Well I.D. 4SM-8 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL Chloride Specific Conductance mg/I 8.8 ji Total Alkalinity Uranium pH mg/l as CaCO3 mho/cm 1570 2004 * Piezometric Elevation mg/I Msl 142.7 Date 05JAN2004 64 866 125.1 80 4584.5 02 FEB 2004 6.5 863 123.5 79 4590.5 09 MAR 2004 6.5 857 123.4 50 4589.0 08)1UN 2004 6.5 830 115.8 82 4589.3 13 SEP 2004 69 821 125.3 82 4590.0 08 DEC 2004 6.4 849 112.9 8.1 * Values Exceed Upper Control Limit 4590.3 4SM-8 Negative U308 Grades Indicate Less Tlan Detection Limit. 251 COGEMA Mining Inc. NRCDE02REP Mine Unit 4 Well I.D. 4SRM-07 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH . INTERIOR SHALLOW SAND MONITOR WELL Chloride mgA - Specific Conductance . -: mho/cm . 19.4 Total Alkalinity pH mgf1asCaCO 3 , Uranium gA . 2004 . Piezometric .Elevation , msl 447.1- 1175 Date OSJAN 2004 9.1 497 252.7 02 FEB 2004 9.0 495 249 S S.0 09 MAR 2004 90 492 2439 S.l 14 N 2004 9.4 493 252.1 S.O 1ISEP2004 90 493 254.1 0 DEC 2004 92 504 237.8 S0 . * S.2 - , , 4578.2 4579.7 . I 4579.0 4578.2 : ;- * .4575.2 4578.3 4SRM-07 Values Exceed Upper Control Limit Ncgative U308 Grades Indicate Less Than Detection Limit. . 252 I COGEMA Mining Inc. NRCDEO2REP Mine Unit 5 Well I.D. 5SM1 Water Quality Parameters Units Upper Control Limit CHRISTENSENRANCH ': INTERIOR SHALLOW SAND MONITOR WELLI -' I Chloride Specific Conductance mg/i 22.1 Total; Alkalinity it mho/cm mg/l as CaCO3 2922 316.6 pH - 2004 .. - . I . I - . -.. Uranium piezometric Elevation mg/i is! Date 21 JAN 2004 10.3 1225 103.3 7.8 4625.3 13 APR 2004 7.6 1220 97.0 8.0 4626.3 20 UL 2004 7.7 2299 96.2 78 4626 8 18OCT 2004 7.5 1198 94 6 7.9 * Values Exceed Upper Control Limit 4623.6 5SM1 Negative U308 Grades Indicate Less Than Detection Limit. "- 253 COGEMA Mining Inc.: NRCDEO2REP Mine Unit 5 Well I.D. 5SM2 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH. INTERIOR SHALLOW SAND MONITOR WELL Chloride mg/l Specific Conductance :; I-mho/cm 22.1 2922 Total Alkalinity . 2004 Piezometric Elevation ms. M Uranium pH mg/l ! mg/1as CaCO3 . 316.6 - Date 21 JAN 2004 68 13 APR 2004 7.1 20 JUL 2004 I 8 OCT 2004 *6a 7.1 1190 1289 ' 1165 1165 105.8 7.9 80 100.7 80' 105.4 7.9 103.3 * 4668.8 , .1 4672.7 j : * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. :-254 4672.0 I. . I. 5SM2 4672.0 COGEMA Mining Inc'. NRCOEO2REP Mine Unit 5 Well I.D. 5SM3 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH; INTERIOR SHALLOW SAND MONITOR WELL Chloride mg/I Specific Conductance ji mho/cm Total Alkalinity 2922 316.6 22.1 2004 Uranium pH Piezometri . Elevation mg/i mg/i as CaC0 3 msl Date 21 JAN2004 7.1 1390 87.2 3.3 4663.7 13APR'2004 63 1402 86.1 8.3 4670.5 21 JUL 2004 6.7 1380 a5 4671.7 1 3oCr 2034 68 1375 79 467i7 34.0 90.3 5SM3 * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. j 255 --- COGEMA Mining Inc. NRCDE02REP CHRISTENSEN RANCH : INTERIOR SHALLOW SAND.MONITOR:WELL Mine Unit 5 Well I.D. 5SM5 -2004 i r* Chloride Water Quality . Parameters- Units Upper Control Limit . mg/l f,, Total Specific Conductance ' pnmho/cm 22.1 Alkalinity -. f mg/las CaCO3 2922 i Piezometric Pel Elevation Uranium pH I mg/l nsM ; - . .: 316.6 Date 20JAN 2004 6.1 . 1346 13APR2004 5.9 1344 21JUL2004 5.9 1307 19OCT 2004 5.8 1301 ; - 110.5 7.7 1096 7.8 107.1 7.7 106.7 7.6 , Negative U308 Grades Indicate Less Than Detection Limit. I ; 256 4677.2 4680.3 4678 0 . ; * Values Exceed Upper Control Limit . S: SM5 COGEMA Mining Inc'. NRCDEO2REP Mine Unit 5 Well I.D. 5SM6 IWater Quality CHRISTENSEN RANCH: INTERIOR SHALLOW SAND MONITOR WELL: Chloride Parameters Units Upper Control Limit Specific Conductance mg/ 22.1 Total Alkalinity 11 mho/cm mg/I as CaC 2922 316.6 . 2004 Uranium pH '1 Piezometraicn Elevation, I mgg/ - msl . . Date 21 JAN 2004 9.4 627 134.8 3.4 4662.3 13 APR 2004 9.3 628 181.3 3.5 4664.X 21 JUL2004 9.3 603 176.4 B.5 4665.3 19 OC 2004 96 604 1739 8.3 4667.6 5SM6 * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 257 . COGEMA Mining Inc. NRCDE02REP Mine Unit 5 Well I.D. 5SM7 CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITORWELL 2004 Date . - . 21JAN2004 9.7 *13APR 2004 9.1 21 JUL 2004 90 . 21 0CT 2004 8.0 . 1843 7.7 280.0 8.0 1105 289 1 80 1005 244 8 8.2 1392, . 1292, .; ., * Values Exceed Upper Control Limiit 4659.0 .., .258 4660.5 4660 9 - . I Negative U308 Grades Indicate Less Than Detection Limit. . . I 5SM7 4656.6 COGEMA- Mining Inc.' NP.CDE02REP Mine Unit 5 Well I.D. WCOW-04 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH 2004 . I * INTERIOR SHALLOW SAND MONITOR WELL ' Chloride Specific Conductance mg/l 22.1 Total Alkalinity 1i mho/cm mg/i as CaCO3 2922 316.6 Uranium pH mg/i Piezometric msl Date 20 IAN 2004 6.5 1368 105.3 8.0 4630.8 13 APR 2004 6.5 1316 103 3 8.1 4635.7 20 JUL2004 6.5 1334 990 82 4637.3 I Ocr 2004 68 1533 106.9 7.9 4639.5 * Values Exceed Upper Control Limit WCOW-04 Negative U308 Grades Indicate Less Than Detection Limit. 259 COGEMA-Mining Inc. NRCDEQ2REP CHRISTENSEN RANCH . INTERIOR SHALLOW:SAND MONITOR WELL Mine Unit 6 Well I.D. 6SM1 --. :, Chloride Water Quality Parameters - Units Upper Control Limit - mg/l Specific Conductance . - 22 Total Alkalinity tpmho/cm rmg/lasCaC0 3 1966 289.1 - 2004~ Ura.n-u Piezometric pH UI . ~. Elevation mg/I - msl .. . .. Date 27JAN 2004 67 1072 111.6 3.3 * . 4701.5 23 FEB 2004 6.4 1036 109.2 8.3 *.1 4701.7 22 KAR 2004 6.3 1028 108.9 19APR2004 6.5 1047 109 8 17MAY 2004 65 1049 108 0 S.3 4702.5 21 UN2004 66 1029 107.5 4702.5 26JUL2004 6.5 1014 8.3 832 8.2 16 AUG 2004 7.1 27 SEP 2004 65 1020 117.5 25 oCr 2004 7.1 1221 112.4 78 4701.9 09 NOV 2004 7.4 1167 1128 S.l 4701.9 27 DEC2004 6.2 1032 990 3.5 4700.1 * Values -12 11 110.5 r' . i 13.5 8.4 4702.5 8.3 4701.5 4702.3 4701.3 3.2 4702.1 6SMI Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. :260 COGEMA Mining Inc. NR CDE02REP Mine' Unit 6 Well I.D. 6SM2 I Water Quality Parameters CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL Units Upper Control Limit Specific Conductance Chloride mg/l I 24.2 .1 mho/cm Total Alkalinity Uranium pH 'mg/l as CaCO3 3574 : 2004. Piezometric>' Elevation mg/I msl 238.2 Date 27 JAN 2004 8.2 1979 88 8 8.0 4705.3 23 FED 2004 7.7 1963 85 I 78 4705.1 22 MAR 2004 80 1954 85.0 7.9 4704.8 19APR2004 83 1971 88.4 7.8 4705.5 17MAY2004 8.1 1922 86.1 80 4705 6 21 JUN 2004 S.0 189S 858 79 4705 9 261UL2004 7.8 IS44 85 0 7.7 4705 8 16AUG2004 8.0 2898 86 1 78 4704.9 27SEP 2004 7.7 2S90 85.2 78 4706.0 250CT 2004 80 2882 83 2 7.5 4706.0 09 NOV 2004 78 1865 86.0 7.7 4705.3 27 DEC 2004 78 1840 78.3 7.9 * Values Exceed Upper Control Limit 4705.0 6SM2 Negative U308 Grades Indicate LUss Than Detection Limit. 261 COGEMA Mining Inc.- NRCDEQ2REP Mine Unit 6 Well I.D. 6SM3 -y Water Quality . Parameters Units Upper Control Limit .CHRISTENSEN RANCH INTERIOR SHALLOWtSAND MONITOR WELL Chloride Specific Conductance - mg/l 24.2 ,u mho/cm Total Alkalinity ;I- Ui Urnu pH J.mg/l as CaCO3 3574 . -~ 2004 . Piezol etric .. .Elevation msl mg/l - 238.2 . ;, . i. . Date * * . 27 )AN 2004 8.4 2053 720 7.8 4716.4 23 FEB 2004 *.5 2052 706 7.7 4716.2 22 MAR 2004 8.4 . 2049 67.3 7.8 4716.3 19APR2004 1.5 2059 704 7.7 4716.4 17MAY2004 *.5 2013 69.8 7.7 4717.0 21 AN 2004 8.3 1990 704 7.6 4716.9 26 JUL 2004 1.3 1978 690 7.6 4715.9 16AUG 2004 1.7 2022 71.6 7.6 4716.1 27 SEP 2004 510 195t 68 0 7.7 4716.7 26 0C 2004 8.4 2040 693 7.5 4716.3 09 NOV 2004 13 1979 660 7.5 4716.3 2S DEC 2004 5.0 2029 58.7 7.8 4715.5 * Values Exceed Upper Control Limit 6SM3 Negative U308 Grades Indicate Less Than Detection Limit. 262 I COGEMA Mining Inc. NRCDE02REP Mine Unit 6 Well I.D. 6SM4 * Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH, INTERIOR SHALLOW SAND MONITOR WELL Chloride mg/I Specific Conductance ;I i mho/cm 24.2 TotalAlkalinity pH mg/I as CaCO 3574 -2004: .t! . Uranium Piezometric Elevation mg/I msl 238.2 Date 27 JAN 200)4 6.8 1617 40.6 23 FEB 2004 7.1 1620 47.5 8.2 4717.1 22MAR2004 7.2 1616 49.S 8.3 4715.9 19APR 2004 68 1625 47.4 8.2 4716 8 17MAY 2104 7.1 1560 44.3 8.3 4717 4 21 JUN 2004 68 1538 39 8 8.6 4717 8 26JUL'2004 68 1617 71.5 7.8 4713.9 16AUG2004 68 1619 58.2 7.6 4716.2 27SEP 2004 7.4 I5S5 362 S.2 4717.1 260CT 2004 7.1 1490 41.7 7.7 4715.S 09 NOV 2004 6.9 2499 46.5 80 4716.2 28DEC2004 66 1564 28 6 * Values Exceed Upper Control Limit 4716.8 8.6 4716.0 6SM4 Negative U308 Grades Indicate Less Than Detection Limit. 263 . COGEMA Mining Inc., NRCDEO2REP CHRISTENSEN RANCH; . INTERIOR SHALLOW:SAND MONITOR WELL : . Mine Unit 6 6SM5 I.D. .Well .. Water Quality . -Parameters Units - Chloride .. mg/l Specific Conductance P mho/cm 22 Upper Control Limit Total Alkalinity - . : Piezometric vI I E Elevation msl Uranium pH mg/l 7mg/las CaCO3 1966: 2004 289.1. . .. , - I Date 271AN 2004 7.9 1632 99.2 1 l0 24 FED 2004 7.9 1630 97.2 20 23 MAR2004 7* 1615 966 S0, 19APR2004 S0 1616 956 7.9 17MAY 2004 7.9 1595 963 20 21 JUN 2004 S7 . 1540 9S0 7.9 27JUL 2004 2.3 1550 95.S 7.6 16AUG2004 7.7 1596 95.1 7.8 28 SEP 2004 S0 1555 944 7.9 260CT2004 S1 1571 99.7 7.S 4706.5 09NOV2004 7.7 2553 91.1 7.7 4706.5 7.4 - 1615 25.1 80 4707.3 2SDEC2004 * . Values Exceed Upper Control Limit 4707.4 -; 4707.1 . . 4707.1 I I. 4707.6 4707.8 4707.6 ! * - 4707.6 . 4707.1 470S.0 6SM5 Negative U308 Grades Indicate Less Than Detection Limit. . 264 f! COGEMA Mining Inc. NRCDE02REP Mine Unit 6 Well I.D. 6SM6 Water Quality . Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL-' Chloride J Specific Conductance mg/I 22 - g mho/cm Total; Alkalinity Uranium pH Piezometeic' Elevation mg/i mg/l as CaCO3 1966 ; 2004 msl 289.1 Date 27 JAN 2004 11.7 507 265.4 24 FEE 2004 12.0 507 2576 S.2 46902 23 MAR 2004 1I.S 501 259 4 8.3 4689.8 19APR2004 12.1 502 259 6 8.3 4691 6 17 MAY2004 122 497 259.1 8.3 4691.1 21 JUN 2004 12 0 487 261 6 8.3 4691.9 271JUL2004 11.5 4S5 250.6 7.6 4691.8 16AUG 2004 11.9 497 253.7 8.1 4690.4 23 SEP 2004 116 491 250 1 7.9 4691.2 26 0CT 2004 11.4 489 251.7 8.1 4691.1 09 NOV 2004 11.2 492 2596 8.2 468.7 27 DEC 2004 11.3 505 228 0 8.3 8.2 4690.7 4689.6 6SM6 * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 265 COGEMAMining Inc.' NRCOEQ2REP Mine Unit 6 .Well I.D. 6SM7 .' ,- Water Quality -Parameters Units Upper Control Limit CHRISTENSEN RANCH ; INTERIOR SHALLOW. SAND MONITOR WELL - I. , Total Specific Chloride Conductance mg/l Alkalinity., \ -- nho/cm ;mg/IasCaC03 ,, -: Uranium pH I ' msi I _. .: .: I.. Date I 27 JAN 2004 11.0 498 260.0 8.4 24 FED 2004 11.6 497 261.7 S.4 .* I I 4691.1 .4690.4 .- 4689.5 23 MAR 2004 11.5 494 , 259.3 * 8.4 ** 20 APR 2004 11.4 494 .: 250.7 8.2 - 17 MAY 2004 11.7 493 .- 261.1 8.4 2 IJtJN2004 11.3 4835 254 4 84 27 JUL 2004 11.1 473 ' 246 2 7.7 17 AUG 2004 11.3 493 -. 251.0 8.4 4688.8 28 SEP 2004 11.4 486 - 252.0 8.1 4691.1 26 OCr 2004 ItI 4 494 - 254 2 S.3 4690.4 09 NOV 2004 11.3 253.3 E.3 28 DEC 2004 10.K 237.8 8.4 : * - ' 498 4690.6 * :- .: - 4690.9 . 4691.5 4690.4 4690.4 -, - . . . 6SM7 .* Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. % 266 --. Piezometric UIElevation mg/i . 330 889 25.6 2004 . 4689.6 I COGEMA Mining Inc. NRCDEO2REP - Mine Unit 6 . Well I.D. 6SM8 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH: INTERIOR SHALLOW SAND MONITOR WELL' Chloride mg/l Specific Conductance . ,umho/cm 24.2 Total Alkalinity; - . 2004 I p ..' I. . .1 Uraium - msl - Date 27IAN2004 10.0 2251 53.9 7S 4731.0 23 FE132004 100 2231 525 7.6 4731.1 22 MAR 2004 10.5 2230 54.7 7.7 4730.2 20 APR 2004 10.3 2234 54.4 7.6.. 4730.2 17MAY 2004 10.7 2120 57.2 7.8 4730.9 21 JUN 2'004 9.9 2134 53.5 7.9 4731.1 26 IUL 2004 10.1 2147 54.0 76 4729 5 17AUG 2004 10.3 2150 55 5 7.7 4730.4 25 SEP 2004 100 2171 54 3 7.7 4730.5 26 OCT 2004 20.0 2139 54 2 7.7 4730.1 09 NOV 2004 9.8 2132 55.4 7.6 4723.9 23 DEC 2004 9.7 2199 49.5 7.3 * Values Exceed Upper Control Limit 4729.7 6SM8 Negative U308 Grades Indicate Less Than Detection Limit. 267 .........I Elevation mg/i 238.2 . . Piezometeionc U pH mg/I as CaCQ3 3574 . 1 COGEMA Mining Inc. NR CDEQ2REP Mine Unit 6 Well I.D. 6SM9 . . - - - CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL Water Quality .- Parameters Units Upper Control Limit Total Alkalinity-, Specific Chloride m g/l 24.2 *Piezometric Piezometric . .Elevation - Conductance - 2004 umho/cm m- mgll as CaC 3574 238.2 Uranium pH mg/Q 3 I msl ...- - Date :. 9.1 2148 23FEB 2004 S.9 2144 , * 167 ,.: 4731.5 22?AAR 2004 9.4 2321 l30 * . 4731.0 20APR 2004 9.3 2109 . 191 84 17MAY2004 9.4 201 S.5 21 JUN 2004 9.2 2014 . .. 17.9 8.7 26 JUL 2004 9.0 2012 _ . :- 27.0 S6 177AUG2004 9.1 2030 29.S t.0 4730.1 27 SEP 2004 9.4 - 2013 3 203 S.5 4731.1 26 OCT 2004 9.1 2022 324 7.9 09 NOV 2004 SS 2005 342 S.0 23 DEC 2004 8.6 2033 163 8.7 * s15 2079 ,- " .- - . 27IAN 2004 4730.7 - -. * 4731.5 I Negative U308 Grades Indicate Less Than Detection Limit. ! i%268 4731.7 4730.3 4731.2 4729.5 .. 4730.4 ; 6SM9 .* Values Exceed Upper Control Limit 4731.8 I COGEMA Mining Inc. NRCDEQ2REP Mine Unit 6. Well I.D. 6SM10 - Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR SHALLOW SANDi MONITOR WELL Chloride mg/l Specific Conductance ; j mho/cm Total Alkalinity 889 330 25.6 I;; 2004- U . Piezometric UraniumElevation pH mg/I as CaCO3 mg/l msl Date 271AN 2004 106 797 248.5 82 4681.1 23 FEB 2004 10t 796 247.3 82 4681.3 23 MAR2004 10.7 783 247.6 8.3 4679.9 20APR2004 108 7B2 250.0 S.1 4680.1 24 MAY 2004 11.0 770 247.5 8.3 4630.9 21 JUN 2004 10.3 759 244.5 S2 4680.6 26JUL2004 10.7 743 245.2 8l 4680.3 1IAUG2004 12.4 761 2512. 80 4673.7 23SEP2004 10.4 747 245 S SI 4680.4 26 OCT 2004 10.6 748 248.2 80 4679.3 09 NOV 2004 10.1 736 250.9 Bl 4677 0 21DEC2004 10.4 752 224.3 8.3 * . Values Exceed Upper Control Limit 4679.2 6SM10 Ncgative U308 Grades Indicate Less Than Detection LimiL K-I 269 COGEMA Mining Inc. NRCDEQ2REP CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL . . Mine Unit 6 Well I.D. 6SM11 Chloride Water Quality * Parameters .- * Units Upper Control Limit mg/l . 1 Specific Conductance : lho/cm 24.2 Total Alkalinity Piezometric .: Elevation msl Uranium -pH mg/l mg/l as CaCO3 . . -. 238.2 3574-. .. - 2004 . I Date . * . I - *. * * I 47303 76.9 a.1 733 so 4730.5 69.6 3., 4729.9 * 2595 713 s0 4729.5 12.9 2539 72.0 7.7 2 URN2004 13.1 2460 76.1 3.2 26 JUL 2004 13.4 2430 72.2 so 17 AUG 2004 13.2 2513 74.5 3.3 27SEP 2004 13.3 2497 30.3 3.2 4730 6 26 OCT 2004 '3.4 2474 79.7 s0 4729.9 09 NOV 2004 12.7 2441 79.s Y1l 4730.3 29 DEC 2004 12.5 2499 7510 8.2 27 IAIN 2004 13.3 2636 23 FEB 2004 13.3 2636 23 MAR 2004 12.9 2592 20 APR 2004 13.3 IMAY2004 * * . : . . ,.. : 4730.3 4730.0 *. 4729.3 - 4729.3 6SM11 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. - 270 4729.2 I I COGEMA Mining Inc. NRCDE02REP Mine Unit 6 Well I.D. 6SM12 Water Quality, Parameters CHRISTENSEN RANCH INTERIOR SHALLOW SAND MONITOR WELL Chloride mg/i Units Upper Control Limit Specific Conductance 24.2 Total, Alkalinity l. mho/cm mg/I as CaCO. 3574 238.2 -2004 Uranium pH - mg/i ! Piezometic Elevation msl 8.5' Date 27 JAN 2004 124 2771 111.3 7.7 4730 4 23 FEB 2004 12.4 2767 103.6 7.7 4730.5 23 MAR 2004 12.5 2730 105.1 7.7 4726.7 20 APR 2004 12.9 2709 1034 7.6 4729.2 19 MAY 2004 12.7 2540 112S 7.7 4730.1 21 JUN 2004 12.4 2568 1043 7.7 4730 2 26 JUL 2004 12.5 2510 105.0 7.6 4723.3 17AUG 2004 12.3 2634 1050 7.7 4730.1 28 SEP 2004 11 2605 1059 7.7 4730.3 26 OCT 2004 126 2539 1099 7.5 4729.9 09 NOV 2004 11.9 2569 109.1 7.6 4723.4 21 DEC 2004 124 2674 96.0 7.3 4729.0 * Values Exceed Upper Control Limit 6SM12 Negative U308 Grades Indicate Lcss Than Detection Limit. <21271 COGEMA Mininig Inc. NRCOE02REP .CHRISTENSEN RANCH. INTERIOR SHALLOW SAND MONITOR WELL Mine Unit 6 'Well I.D. 6SM13 * .. Water Quality Parameters . Units Upper Control Limit Chloride .. :mg/I Specific Conductance p mo/cm 24.2 Total: Alkalinity . r:mgg/ as CaC0 3 : 22004. f ..... .. . Uranium pH Piezometric . Elevation mg/I msl1 238.2 3574 Date * 27 JAN 2004 12.4 22t7 77.0 7.8 4730.7 2i FEB 2004 12.4 2286 . :' 75.5 7.7 23 6tAR 2004 122 2252: ' 73.9 7.1 4730.5 4730.1 20 APR 2004 17 MAY 2004 12.3 2252 74.3 7.6 4730.0 12 t 2210 1' 77.7 7.9. 4730.7 21 JUN2004 120 2161 r. -, 74.4 7.8 4731.1 26 JUL 2004 12.1 2116 I: 732 7.7 4729.6 17AUG 2004 12.1 2159 751. 7.S 4730.4 2SSEP 2004 11.9 2150 - ' 73.6 7.7 4730.4 26 oCr 2004 12.2 2163 *75.5 7.6 4729.9 09 NOV 2004 11.4 2146: 73.4 7.7 4728.7 2240 67.8 7.t 2i DEC 2004 * 1.S - : . -. Values Exceed Upper Control Limit 4729.3 .: Negative U308 Grades Indicate Less Than Detection Limit. 272 . 6SM13 COGEMA MiningInc.-. NR CDEO2REP Mine Unit 6 Well I.D. 6SM14 CHRISTENSEN RANCH ; INTERIOR SHALLOW SAND MONITOR WELL. --: : .2004 I' .' !~ I Water Quality . Parameters Chloride Units Upper Control Limit Specific Conductance mg/I 22 Total, Alkalinity;, ' : p mho/cm. mg/l as CaCO. 1966 Piezometric Elevation Uranium pH mg/i 289.1 mAs . . Date 27 IAN 2004 7.4 1253 133.4 8.4 4705.6 23 FEB 2004 7.4 1160 122.7 8.3 4704.2 23 MAR 2004 7.6 1136 133.3 8.3 4702.8 20 APR 2004 7.7 1149 132.7 t.2 4704.2 24MAY2004 76 1136 131.1 8.3 4704.t 21 JUN2004 7.4 1123 133.1 8.3 4705.0 26 JUL 2004 7.6 1101 132.3 8.2 4703.2 I8AUG2004 7.4 I2i0 129.7 82 4703 2 28SEP2004 7.4 fill 133.1 82 4703.9 26 OCT 2004 7.4 i2ls 131 8 8.1 4703.4 09 NOV 2004 7.1 1138 126.8 8.2 4703.4 20 DEC2004 7.4 1137 122.0 8.4 4702.4 * Values Exceed Upper Control Limit 6SM14 Negative U308 Grades Indicate Less Than Detection Limit. 273 I CHRISTENSEN RANCH PROJECT Interior Deep Sand Monitor Wells COGEMA Mining Inc. NRCDEQ2REP CHRISTENSEN RANCH - ; INTERIOR DEEP.SAND MONITOR WELL Mine Unit 5 Well I.D. MW-12D - Water Quality Parameters Units Upper Control Limit pH tpho-cm mgA asCaCO C . 1017.1 420.9 Conductance . mg/i ; 22.8 I Total Alkalinity Specific Chloride 2004 . : Uranium .. 1 ; ; Date 211AN2004 10.6 601 161.4 S.3 12APR2004 10.5 602 165.4 3.4 20 JUL 2004 10.4 586 155.3 ISOCr2004 10 3 587 1663 * 3.5 8.4 ; I w -. : Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Dctection Limit. ! ' 274 4589.6 4590.1 * -. Piezometric .Piezometric : Elevation - mg/l . - 7 * 4591.0 -. 4535.9 MW-12D COGEMA Mining Inc.: NRCDE02REP Mine Unit 3 Well I.D. MW45D - - Water Quality Parameters CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL. Chloride Units Upper Control Limit Specific Conductance mg/l mho/cm mg/l as CaCO3 753 153.3 ji 13.7 Total; Alkalinity. . 2004 ; .. p 7 :4 Uranium pH mg/ Piezometric , Elevation . msl Date 12 )AN 2004 9 6' 619 132.5 8S 4526.7 09 FEB 2004 9.5 619 129.3 86 4526.S IS MAR 2004 9.7 608 135.4 8.5 4526.2 05 APR 20D4 98 626 126.6 8S 4525 6 03 MAY 2004 10.2 620 133.8 8.6 I5 JUN 2004 94 607 132.4 8.5 4527.0 4525.4 12JUL 2004 96 611 127.9 8S3 4527.3 O9AUG 2004 9.5 613 127.0 8.5 4527.5 20SEP 2004 9.4 606 1296 86 452S.5 04 OCT 2004 9.7 61S 1230 85 4527.8 4 Values Exceed Upper Control Limit MW45D Negative U308 Grades Indicate Less Than Detection Limit. 275 .. COGEMA Mining Inc. NRCDEQ2REP Mine Unit 3 Well I.D. MW47D .; UpperControlLimit Specific Conductance Chloride Water Quality Parameters Units CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL- . mg/I . . ,Pmho/cm: 13.7 :.753 . Total . Alkalinity . 2004 U. Uranium p1l . mg/I as CaCO3 .n Piezometric IElevation msl mg/l - ;153.5 . - Date . 12. 2JAN2004 9.5 09 FEB 2004 9.7 61S' 137.8 86 1 4527.S 623 135.3 S7 4527.8 ,96 611- 136.1 S.6 4527.3 05 APR 2004 9.7 632. 127.3 16 4526.1 031MAY 2004 9.4 617 132.9 1.5 4526 9 IS JUN 2004 94 614- 132.2 8.6 4528.2 12JIUL2004 9.4 616 125.4 8.6 4528 4 09AUG2004 9.4 617 127.7 16 4528.7 20 SEP 2004 9.3 606. 129.9 16 4529.8 04 OCT 2004 9.4 62S 122.2 86 3 -15MAR2004 * . . 4529.0 MW47D Values Exceed Upper Control Limit Negative U308 Grades Indicate Less man Detection Limit. , . 276 I COGEMA Mining Inc. NRCDEQ2REP Mine Unit 3 Well I.D. MW49D Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR DEEPF SAND MONITOR WELL' Chloride mg/l . Specific Conductance i mh oicm . Total Alkalinity 753 153.3 13.7 2004 -- ..- Uranium pH mg/I mg/I as CaCO3 7 - Piezometric Elevation msl Date 12JAN2004 S8 559 167.7 8.6 4530.1 09FEB 2004 9.1 574 161.S S.7 4530.2 16 MAR 2004 8.9 553 166.4 8.7 4529.9 05 APR 2004 9.3 598 155.9 8.7 4529 2 03 MAY 2004 9.4 587 t54.3 85 4529.3 15 JUN 2004 90 559 161.9 86 4530.7 12JUL2004 9.1 581 144.2 8.6 4530.7 09 AUG 2004 9.2 592 1432 86 4531.1 20 SEP2004 9.0 5SI 1469 86 4532.2 04 OCr 2004 9.7 605 1364 S.5 * Values Exceed Upper Control Limit 4531.2 MW49D Negative U308 Grades Indicate Less Than Detection Limit. 277 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 3 Well I.D. MW5ID Chloride -Water Quality .:Parameters Units Upper Control Limit * CHRISTENSEN.RANCH . INTERIOR DEEP SAND.MONITOR WELL .. mg/l .. :; Total - - Specific Conductance . - Alkalinity itmho/cm " Uranium pH ... :, Piezometric I Elevation msl mg/l i mg/lasCaCO3 .. 153.3 753 13.7 2004 Date 12IAN 2004 98 . 641 117.7 85 4525.2 09 FEB 2004 9.8 640 113.9 86 4525.9 16MAR2004 10.1 630 122.4 86 4520.4 05-APR2004 10.0 635 120.3 8.7 4525.5 101MAY2004 10.2 643 114.5 86 4524.2 15JUN 2004 9.9 622 114 8.5 4525.5 19JUL2004 9.5 627 110.4 8.6 4525.5 09 AUG 2004 9.7 622 119.1 8.5 4526 0 21 SEP 2004 10 3 633 1184 F.4 4527.2 06 0C 2004 9.8 627 115S 8.5 4526.3 * Values Exceed Upper Control Limit MW5ID Negative U308 Grades Indicate Lcss Than Detection Limit. .:278 .._ COGEMA Mining Inc.:- NRCDEO2REP Mine Unit 3 Well I.D. MW53D Water Quality CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL- F.. Chloride Parameters r C53 mgIl Units Upper Control Limit Specific Conductance p.mho/cm 13.7 Total Alkalinity J, mg/I as CaCO 2004. . ! Uranium I pH . .. . mg/l Elevation msl 153.3 753 Date 13 IAN 2004 9.8 650 120.0 8.6 4532.2 09 FEB 2004. 10.1 649 107.7 8.6 4532.8 16 MAR 2004 9.9 646 106S 8.6 4529.1 06 APR 2004 10.2 653 108.7 8.7 4532.5 IOMAY 2004 9.9 649 107 t 86 4529.9 IS JUN2004 10 0 645 107 2 8.5 4533.4 19JUL 2004 101 640 104.4 86 4538 S 20 SEP 2004 9.9 638 105.9 86 4534.8 04 OCr 2004 10.4 639 112.6 a85 4533.7 * Values Exceed Upper Control Limit MW53D Negative U308 Grades Indicate Less Than Detection Limit. 279 COGEMA Mining Inc. NRCOE02REP I CHRISTENSEN RANCH INTERIORDEEP SAND MONITOR WELL: Mine Unit 3 Well I.D. MW55D Water Quality -Parameters Units Upper Control Limit Chloride j mg/l Specific Conductance . p mho/cm Total Alkalinity mmg/l as CaCQ3 Piezometric Elevation Uranium pH mnsl mg/l . 153.3 753- 13.7 2004 Date 13AN2004 B9 56t 1660 S.3 I I FED 2004 90 567 1730 3.7 16MAR 2004 9.7 569 1520 8S 4527.9 05APR2004 92 568 1540 3.t 4531.7 IOMAY2004 S9 573 1494 SS: 4529.7 151UN2004 9.4 561 152.0 3.7 4532.3 1911iL2004 S.9 549 155.3 S.7 4531.0 09AUG2004 9.1 558 149.S S7 4532.3 22SEP 2004 93 5S8 134.4 3.7 4533.3 06 OCT 204 9.2 157.7 38 * . 594 * . 4531.5 - .. <4532.0 . 4532.9 - MW55D Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. . 1280 I COGEMA Mining fnc. NRCDE02REP Mine Unit 3 Well I.D. MW57D Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL Chloride mg/I Specific Conductance II mho/cm 13.7 Total Alkalinity mg/i as CaCO3 753 2004 Uranium pH mg/I Piezometri~ Elevation msl 153.3 Date I3 JAN 2004 104 635 111.9 B6 4536 3 11 FEB 2004 106 640 1108 S6 4536 3 16 MAR 2004 10.7 634 109.1 8.7 4529.9 06 APR 2004 10.3 633 114.0 S.7 4532.3 10 MAY 2004 11.3 637 1176 S6 4531.6 15 JUN 2034 t03 635 3095 S6 4537.4 191JUL 2004 105 630 30C.2 S6 4537 2 09 AUG 2004 104 623 109.1 S.5 4547.5 22 SEP 2004 104 624 111.3 06 OCT 2004 103 625 114.3 * Values Exceed Upper Control Limit 3.6 8.7 4533.5 4537.7 MW57D Negative U308 Grades Indicate Less Than Detection Limit. 281 COGEMA, Mining Inc. NRCDEQ2REP CHRISTENSEN RANCH INTERIOR DEEP.SAND MONITOR WELL. Mine Unit 3 Well I.D. MW65D Water Quality . Parameters Units Upper Control Limit Chloride .mg/l 13.7 Specific Conductance . pu mho/cm 753 ! Total Alkalinity . -mg/l as CaC 153.3 Uranium pH 3 ,2004 - . . mg/l Piezometric Elevation msl Date 131 JAN 2004 SS 573 143S 9.1 4540.3 II FEB2004 90 . 592 147.0 9.0 45412 16NAR 2004 S.1 517 171.7 9.1 4537.2 06 APR 2004 95 604 132.9 9.1 4541.3 IOMAY 2004 91 580 141.6 9.1 4540.7 16JUN2004 83 520 153.5 8.9 4542.4 19JUL2004 89 568 135.7 4542.0 09 AUG 2004 9.5 597 126.S 9.1 89 22 SEP2004 7.6 560 139.5 4543.2 06 0CT 2004 9.7 602 129.7 S9 9.0 * Values 4542.4 4542.6 MW65D Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Dctection Limit. :, 282 COGEMA Mining Inc. NRCOEO2REP Mine Unit 2 Wrell I.D. MW67D CHRISTENSEN RANCH ' INTERIOR DEEP-SAND MONITOR WELL - - 2004 Date 06 JAN 2004 9.3 568 I802 889 01 FEB 2004 9.1 567 178.7 8.8 4523.7 08 MAR 2004 94 564 175.4 88 4522.3 07 JUN 2004 98 558 1791 8.8 4521.5 07 SEP 2004 9.1 553 173.7 8.8 4524.4 13DEC 2004 8.6 562 161.9 88a 4522.7 * 4522.6 MW67D Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. '<y 283 COGEMA Mining Inc. NRCOE02REP CHRISTENSEN RANCH: INTERIOR DEEP SAND MONITOR NVELL Mine.Unit 2 Well I.D. MW69D - Chloride Water Quality Parameters Units mg/l :- Upper Control Limit Total Alkalinity Specific Conductance 12.9 i mnho/cm mg/l as CaCO3 789 ! .2004 . . Piezometric Uaim Uranium pH . Elevation mAsl mg/l . .-. 134 1 Date 06 IAN 2004 9.7 623 137.9 8.8 ;- 03 FEB 2004 9.7 628 140.5 88 * 03 MAR 2004 9.3 627 137.9 8.S 07 JUN 2004 86 603 1347 S.8 07 SEP 2004 90 590 1405 8.9 90 600 135.5 13 DEC 2004 t Values Exceed Upper Control Limit *. * 284 I, -. . 4524 6 4523.8 . : I* 4523 7 4525.5 4523.9 88 ; Negative U308 Grades Indicate Less Than Detection Limit. 4523.7 I4 . ' MW69D : COGEMA;Mining Inc. NRCDEQ2REP Mine Unit 2 Well I.D. MW71D - Water W Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH' INTERIOR DEEP SAND MONITOR WELL Chloride J Specific Conductance mg/l 12.9 Total Alkalinity - 2004 Uranium pH mg/l mg/l as CaC0 3 pI mho/cm 789 134 Piezometri Elevation msl -. Date 06 )AN 2004 92 637 03 FEB 2004 94 643 01 MAR 2004 94 07IUN 2004 07SEP2004 13DEC 2004 * 129.7 3.9 127.1 s.s 4526.4 63S 1254 SS 4525.1 94 617 1300 3.9 4525 3 96 625 1292 99 4527.3 93 643 1096 * Values Exceed Upper Control Limit Ss 4525.3 4525.7 MW71D Negative U308 Grades Indicate Less Than Detection Limit. 285 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 2 Well I.D. MW9lD * Water Quality .- Parameters Units -Upper Control Limit . CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR'WELL Chloride mg/l Specific' Conductance tiho/cm Total Allcalinity, 2004 Piezometric Piezometric . Elevation Uranium pH . mg/ . mg/l as CaCO- 789 f 12.9 : msl ; 134 . Date j S6 06 JAN 2004 9.4 566 03 FED 2004 92 572 176.3 0OMAR 2004 9.3 - 559 . 270.4 3.5 07 JUN 2004 t.9 527 : , -; 1t3.5 36 07 SEP 2004 8.3 516 187.4 36 l3 DEC2004 8.0 523 167.1 -. S4J,0 . . - 36 4522.6 4523.5 35 - I. 4522.3 -S4522.4 4524 4 I .. 4522.5 . I MW91D * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. t:.286 COGENIA Mining Inc.- NRCDEQ2REP Mine Unit 2 Well I.D. MW93D Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL Chloride mg/I Specific' Conductance ,u mho/cm 12.9 Total Alkalinity ; Uranium pH mg/l as CaCO 3 789 2004 -,!; mg/i , .' : i -Piezometri' Elevation msl 134 : Date 06 ]AN 2004 9.7 65S 107.1 8.6 4521.S 03 FEB 2004 9 665 109.3 S.4 4522.3 09 MAR 2004 98 65S 106.4 8.6 4521.1 07 J(N 2004 99 646 109.0 F6 4521.2 0 SEP 2004 9.9 646 109.5 86 4522.5 13 DEC2004 9.5 641 100.3 8.5 4521.3 * S Values Exceed Upper Control Limit MW93D Negative U308 Grades Indicate Less Than Detection Limit. 287 ":. COGEMAMining Inc. NRCOEQ2REP Mine Unit 2 Well I.D. MW95D - . .Water Quality ,I 7 Parameters: Units Upper Control Limit CHRISTENSEN RANCH . INTERIOR DEEP SAND MONITOR WELL- . Chloride mg/i Specific:. Conductance p, 12.9 ,rnho/cm 4. Total Alkalinity. .mgtl as CaCO 789; - - 2004 ~~~. . ., , * pH Uranium - . mg/i I I Piezometric U u "'Elevation imsl 134.;. Date * - 06JAN2004 9.7 655 112.3 - . 86 03 FEB 2004 98 652 114.5 -. 09MAR2004 9.9 654 112.1 83 86 07 UN 2004 9.7. 642 111.7 8.5 08 SEP 2004 10.2 641 117.7; 8.6 .11DEC2004 9.1 639 99.S 8.5 * Values Exceed Upper Control Limit 4521.7 . . 45225 . . 4521.1 . . 4521.4 4523 4 4521.4 MW95D Negative U308 Grades Indicate Less Than Detection Limit. :, :288 .,*- I COGEMA Mining NRCDE02REP Mine Unit 2 Well I.D. MW97D -. ' Water Quality Parameters Units Upper Control Limit en.; CHRISTENSEN RANCH : INTERIOR DEEP SAND MONITOR WELL :-Chloride mg/I Specific' Conductance' I[Lmho/cm 13.8 Total Alkalinity " 2004 Uranium pH mg/l ' mglas CaCO3 723 I, . Piezonetric . Elevation msl 143.3 Date 06JAN2004 102 633 113.1 36 4521.2 03 FEB2004 104 625 111.6 S.S 4521.1 09 MAR 2004 10.5 622 115.4 3.6 4520.7 07 JUN 2004 10.4 612 120.4 36 4520.9 14DEC200M 9.5 606 105.9 36 ,,* Values Exceed Upper Control Limit 4520.9 MW97D Negative U308 Grades Indicate Lcss Than Detection Limit. 289 COGEMA Mining Inc. NRCOE02REP Mine Unit 2 Well I.D. MW99D Water Quality Parameters Units * Upper Control Limit .. CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL : Chloride 1- mg/Il Specific Conductance'. .:, mrho/cm 723 13.8 Total Alkalinity mg/l as CaCO3 2004 Uranium pH mg ; 143.3 Piezometric U Elevation msl .I . Date 06 IAN 2004 10.4 -565 - 149 0 S6 4518.3 03 FEB 2004 10.5 -560 - 1620 86 4519.3 09 MAR 2004 10.5 565 1540 27 4518.1 07JU1N2004 104 507 169.5 8.7 4518.1 07SEP 2004 10.2 -514 170.5 8.7 4519 9 13 DEC 2004 10.1 *500 1lS.S 8.7 4517.9 * Values -MW99D Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. .,290 COGEMA Mining Inc.< NRCDEO2REP Mine Unit 2 Well I.D. MW1 13D Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL. Chloride mg/I Specific Conductance p mho/cm 13.8 Total Alkalinity mg/I as CaCO 3 723 2004 : Uranium pH mg/l Piezotnetri>c Elevation msl 143.3'. Date 06 JAN 2004 11.0 514 230.7 8- 4519.1 03 FEB 2004 10 3 529 200.5 3.7 4519.9 09MAR2004 109 512 203.5 338 4513.9 071UN2004 11.2 489 210.5 0 338 4512.7 0OSEP 2004 112 481 228.5 * 33a 4516.1 13 DEC 2004 10 6 479 203.12 338 4518.5 * Values Exceed Upper Control Limit MWI 13D Negative U308 Grades Indicate Less Than Detection Limit. 291 COGEMA Mining Inc. NRCDE02REP Mine Unit 4 Well I.D. 4DM-I Water Quality Parameters CHRISTENSEN RANCH -, INTERIOR DEEP SAND MONITOR WELL Chloride mg/l Units Upper Control Limit Specific.' Conductance'. , 14.1 , p mho/cm Total Alkalinity ;mzg/ as CaCO 712 ,-: 2004 - , Piezomnetric Elevation Uranium pH mg/I . , msl 189.2 Date 05 IAN 2004 87 572 02 FEB 2004 89 573 10 MAR 2004 86 560 08 JUN 2004 S.7 551 13 SEP 2004 89 549 08 DEC 2004 8.5 557 124.9 87 4560.1 127.8 8.7 4561.1 123.9 8.6 4560.1 llS.0 8.6 4560.3 .. 125.3 86 4552.0 ,- 1180 8.7 4561.3 v . :. : * Values Exceed Upper Control Limit -.4DM-1 Negative U308 Grades Indicate Less Than Detection Limit. 292 COGEMA Mining Inc. NRCDE02REP Mine Unit 4 Well I.D. 4DM-4 Water Quality. Parameters Units Upper Control Limit CHRISTENSEN RANCH 2004. . INTERIOR DEEP SAND MONITOR WELL ;: Chloride mg/i Specific Conductance 4tmho/cm Total Alkalinity 712 189.2 14.1 ~ I ... - Uranium pH mg/i as CaCO3 . .. :: - : Piezometric, Elevation mg/i msl Date 05 JAN 2004 30 51S 1432 8.7 4545.6 02 FEB 2004 g.3 517 147.7 37 4550.0 09 MAR 2004 7.9 513 142.5 36 509 143.2 *5 14JUN20D4 3.3 4549.2 I I 4549.0 13SEP 2004 t0 505 139.4 36 4542.0 0 DEC 2004 t0 513 122.3 t.7 4551.2 * -. 4DM-4 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. K\1_I 293 COGEMA Mining Inc. NRCDEC2REP CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL. Mine Unit 4 Well I.D. 4DM-8 Water Quality Parameters Units . .hmg/i Upper Control Limit Chloride Specific Conductance:. ,ho/cm 14.1 Total 2004 - Alkalinity Uranium pH mg/I mg/l as CaCO3 712 Piezometric Elevation - rnsl 189.2- Date 05 JAN 2004 8.7 519 152 6 02FEB2004 E6 517 153.3 4 514 151.3 26 87 505 143.7 8.6 13 SEP 2004 24 502 149.8 08 DEC 2004 S.3 509 137.5 09MAR 2004 08 JUN 2004 * Values Exceed Upper Control Limit 4542.7 26 S6 4544.1 :'. I - L, '. ,. 86. 8.7 ; . .I 4DM-8 Negative U308 Grades Indicate Less Tlan Detection Limit ^ 294 4543.3 45342.7 4636 0 4S45 4 NRCDE02REP Mine Unit 4 Well I.D. 4DRM-07 Water Quality Parameters Units Upper Control Limit COGEMA Mvlining Inc. CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL :' Chloride mg/l Specific Conductance' 1±mho/cm 14.1 Total : Alkalinity 2004 Uranium pH mg/l as CaCO3 712 mg/i . Piezometric' Elevation msl 189.2 Date 05 IAN 2004 8.1 532 135.3 86 4554.3 02 FEB 2004 S.4 529 138.0 86 4555.0 09 MAR 2004 8.0 526 133.2 8.6 455219 14 JUN2004 82 523 134.8 S.5 4553.5 518 141.2 86 4546.9 524 12S.5 86 135EP2004 08 DEC2004 * 8.5 SI Values Exceed Upper Control Limit 4555 6 4DRM-07 Negative U308 Grades Indicate Less Than Detection Limit. 295 .COGEMA Mining Inc. NRCDE02REP Mine Unit 5 Nell I.D. 5DMIA .* * ! I. Water Quality Parameters Units . Upper Control Limit CHRISTENSEN RANCH , INTERIOR DEEP SAND MONITOR WELL Chloride mg/ Specific' Conductance . - . pzmho/cm 22.8 Total .Alkalinity ;.nig/l as CaCO3 1017 -! I 2004- . . Piezometric Uranium pH . Elevation mg/l msl 420.9 Date 21 JAN 2004 5.3 413 209 7 8.8 12 APR 2004 5.3 415 208 1 8.9 19 JL2004 5.3 405 200.5 8.8 IIOCT2004 5.3. 405 203.4 8a * Values I Negative U308 Grades Indicate Less Than Detection Limit. ;.296 4393.3 4594 2 4595 2 .. . .: Exceed Upper Control Limit . . 4593.7 5DMIA COGEMA Mining Inc.' NRCDEO2REP Mine Unit 5 Well I.D. 5DM2 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL Chloride mg/i Specific Conductance ,umho/cm 22.8 Total Alkalinitymg/I as CaCO3 2004 . Uranium. U. m .PiezometriiElevation pH msl mg/l . 420.9 1017 Date 21 )AN 2004 11.1 620 121S S9. 4584 2 12APR2004 10.9. 618 122.3 91 45S6.2 20)UL2004 I0.3 613 115.6 18 OCT 2004 10.7 611 11 3 * Values Exceed Upper Control Limit 45t7.9 SS 45t5.5 90 5DM2 Negative U308 Grades Indicate Less Than Detection Limit. 297 COGEMA-Mining Inc. NRCDEQ2REP Mine Unit 5 Well I.D. 5DM3 Water Quality . Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL Chloride *. nmg/l Specific: Conductance -. p rnho/cm 22.8 Total. Alkalinity pHf .mg/l as CaCO3 ; 1017k:. 2004 < .- Uranium . 420.9 . Piezometric - ' Elevation mg/l . K msl ; ; Date * 21JAN2004 9.9 557 12APR2004 10.1 556 201UL2004 IS OCT 2004 9.6 9.5 541 541 * Values 132.5 142.3 135.8 1430 £6 2.7 L.a 8.6 , , . . 4591.2 4593.0 4592.4 4594.9 . 5DM3 - Exceed Upper Control Limit Negativc U308 Grades Indicatc Less Than Detection Limit. . 298 I COGEMA Mining Inc. NRCDEO2REP Mine Unit 5 Well I.D. 5DM4 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR DEEP SAND IONITOR WELL - - : Chloride mg/I Specific Conductance ji mho/cm Total Alkalinity 1017 420.9 22.8 7" mg/I as CaCO 3 2004 Uranium pH . - Piezometric Elevation Msl mg/l Date 21 IAN 2004 5.7 426 223.3 3.7 4593.2 12APR 2004 3.4 427 222.6 .7. 4593.2 19JUL 2004 5.4 421 225.5 8.7 4594.4 IOCT2004 5.3 421 222.2 8.7 ' 4594.0 * 5DM4 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. 299 COGEMA Mining Inc. NRCDE02REP CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL Mine Unit 5 Well I.D. 5DM5 Water Quality Parameters; Units mg/l Upper Control Limit __ __ __ _ _ _ __ _ __ _ Specific Conductance Chloride - 22.8 __ __ __ _ pm~hofcm Total . Alkalinity. . 2004 pH ,mg/lasCaC0 Uranium Piezometric Elevation mg/- msl 420.9 1017 .I Date - : 21 IAN 2004 5.9 U7 12APR2004 58 449 20 JUL 2004 6.0 19OCT 2004 5.8 * Values 239.2 8.6 4589.7 239.0 S.6 4589.1 435 226.3 8,7 4590 7 "45 235.9 86 , ,, 4589 9 - 5DM5 Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. A.- .300 I COGEMA Mining'Inc. NRCDE02REP Mine Unit 5 Well I.D. 5DM7 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL Chloride mg/I Specific Conductance it mho/cm 22.8 Total Alkalinity mg/I as CaCO3 1017 : 2004 rn 7Piezometric pH mg/i - Elevation msl 420.9 Date 21 JAN 2004 7.5 524 261 0 8.3 4535.4 13APR2004 96 521 253.2 8.4. 4637.3 20JUL2004 8.2' 517 256 0 S.5 4589.2 21 OCT 2004 8.3 532 247.3 S.1l 4591.4 * Values Exceed Upper Control Limit 5DM7 Negative U308 Grades Indicate Less Than Detection Limit. 301 COGEMA Mining Inc., NRCOE02REP Mine Unit 5 Well I.D. WCOW-37D CHRISTENSEN RANCH' INTERIORDEEP SAND MONITOR WELL : 2004 : . , . ! -N1 Piezometric ) -- Water Quality - Parameters Units Chloride . mg/l Specific Conductance , . p mho/cm 22.8 Upper Control Limit Total Total ' Alkalinity Piezometric Elevation Uranium pH : mg/l as CaCO mg/l ., msl 420.9 1017 Date 21 JAN 2004 8.7 462 243.7 8.5, 13APR 2004 88 466 243.5 86 20 JUL 2004 8.3 459 233.8 86 6 458 241.7 83 4 190CT2004 * . - 4585.3 4586.1 I. ,. 4589.2 4593 0 'WCOW-37D Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Dctection Limit. .1 ,;i,302 COGEIMA, Mining Inc. NRCOEQ2REP CHRISTENSEN RANCH'. INTERIOR DEEP SAND MONITOR WELL- Mine Unit 6 Well I.D. 6DMI Water Quality Parameters Chloride Units Specific Conductance mg/l Upper Control Limit 21.9 ji Total . Alkalinity mho/cm 2004 i Uranium pH mg/I as CaC0 3 1682 , . .1* , Piezometric Elevation mg/l Msl 129.4 Date 26 JAN 2004 s.2 800 962 23 FEB 2004 8.3 797 94 1 8.3 4532.2 221MAR 2004 85 788 964 8.3 4529.0 19APR 2004 8.5 801 985 82 4517.6 82 4534 0 17MAY2004 82 806 956 8.2 4515.9 21 AUN2004 8.5 773 97.8 8.3 4516.2 85 759 99.0 8.3 4512.1 8.5 778 99.0 S.1 4511.8 27 SEP 2004 8.0 783 96.8 8.0 4516.9 25oCr 2004 8.2 786 93.9 7.9 4517.6 4517.6 26 1UL 2004 16AUG2004 . 09 NOV 2004 8.1 782 91.9 7.9 27 DEC 2004 8.0 760 84.3 8.2 * Values Exceed Upper Control Limit 4520.0 6DMI Negative U308 Grades Indicate Less Than Detection Limit. K)j 303 COGEMA Mining Inc. NRCDEQ2REP CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL Mine Unit 6 Well I.D. 6DM2 Units Upper Control Limit Total. Allcalinity' Specific L Chloride Water Quality Parameters Conductance. ml . - 21.9 . , txnho/cm : 2004 Uranium pH ,mg/l as CaCO3 1682:. . . Piezometric U Elevation - msl mg/l 129.4: . . : - Date 27 JAN 2004 6.4 1126 62 S 9.1 23 FED 2004 65 1123 64.8 9.1 22 MAR 2004 65 1106 60.4 90- 19 APR 2004 6.5 1109 64.6 90 17 MAY 2004 64 1093 57.7 90 2I JUN 2004 64 106t 54.7 9.2 26 JtL 2004 6.5 1050 61.0 S.9 16 AUG 2004 6.5 10S7 63.9 9.1 27 SEP 2004 64 1099 67.5 S9 3.5 25 0CT 2004 64 1105 706 09 NOV 2004 64 1092 66.5 27DEC2004 62 1081 62.1 . I. i - - 4530 5 '_ 4526.0 . I ... I . - Negative U308 Grades Indicate Less Than Detection Limit. ; .304 4513.9 4508.9 * 4509.1 4516.4 4516.2 ,. . 4516.2 4545.2 S9 6DM2 - * Values Exceed Upper Control Limit 4521.6 4515.7 4514 3 - COGEMA PMining Inc. NRCIE02REP Mine Unit 6 Well L.D. 6DM3-2 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR DEEP SAND-MONITOR WELL Chloride mg/I 21.9 Specific Conductance; ji mho/cm . Total Alkalinity mg/i as CaCO3 2004 : .Piezometric Uranium mg/i pH EleVation msl 129.4 1682 Date D7IAN 2004 64 IIIS 77.9 8.0 4533.0 23 FEB 2004 6.5 till 77.7 7.9 4525.4 22 MAR 2004 6.5 1105 7S6 7.9 4519.6 19APR2004 6.5 1119 796 8.0 4519.6 17 MAY 2004 6.4 1098 78.6 80 4508 3 21 JUN 2004 64 1092 77.7 8.2 4512.0 26JUL2004 6.5 1054 798 7.9 4503.2 16 AUG 2004 65 1072 764 7.6 4504.7 27 SEP 2004 64 1077 78S 7.7 4516 3 250Cr20D4 6.7 1079 78.4 7.5 4515 8 09NOV2004 6.5 1076 76.1 7.4 4515.8 27 DEC 2004 6.2 1069 70.7 79 4512.9 * Values Exceed Upper Control Limit 6DM3-2 Negative U308 Grades Indicate Less Than Detection Limit. 305 COGEMA Mining Inc. NRCDEO2REP Mine Unit 6 Well I.D. 6DM4-2 Water Quality . Parameters Uppe : - Units r L Upper Control Limit CHRISTENSEN-RANCH INTERIOR DEEP, SAND MONITOR WEMLL -,Chloride mg/l Total Total Alkalinity Specific Conductance , I 21.9 ILiho/cm 2004 Piezometric Uranium pH mg/il mg/I as CaCO3 Piezometric .Elevation nms 129.4 1682 ! Date 27JAN 2004 6.8 1092 853 8.4 45306 23 FEB 2004 7.0 1067 87.3 84 4525.4 221MAR 2004 7.0 1062 S7.0 8.4 4520.3 * 7.1 1076 8'7.9 8.4 4513.3 17MAY2004 6.5 1086 S08 83 4512.2 21 JUN 2004 7.2 1010 940 85 4520.3 26 JUL 2004 66 1049 822 8.3 4506 5 1APR2004 16 AUG 2004 7.5 89.1 8.4 4507.6 27 SEP 2004 6.5 - 1074 82.0 8.3 4516.3 25 0CT 2004 7.1 1082 85.1 8.0 4515 8 09 NOV 2004 6.6 1053 80.5 8I2 4515 8 27DEC2004 69 1040 785 S4 4517.0 * Values .030 6DM4-2 Exceed Upper Control Limit Negative U308 Grades Indicate Less Tlan Detection Limit. .<306 it I COGEMA Mining Inc.' NRCDEO2REP Mine Unit 6 Well I.D. 6DM5 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL Chloride mg/I Specific, Conductance ' i. mho/cm 21.9 Total' Alkalinity - ... Uranium pH mg/I as CaCO3 1682 . I : -I . :- .... . . 2004. . I . . Piezometric Elevation msl mg/I 129.4 Date 27JAN2004 6.4 114S 79.S SO 24 FED124 6.5 1139 76.0 7.8 23 MAR 2004 6.5 1125 75.7 7.8 4517.1 19APR2(04 6.5 1143 76.1 7.8 4509.8 17MAY2DO4 64 1119 73.1 7.8 4506.0 21JUN2004 6.5 1116 8t.0 81 4524.4 27JUL2004 6.5 1125 77.0 7.7 4503.7 16AUG 2004 6.4 1125 73.1 7.6 4495V0 23 SEP 2004 64 1133 77.2 7.7 4513.6 260Cr2004 64 t1i5 74.6 7.5 451ij1 09NOV2004 62 1101 68 S 7.5 4512.1 27 DEC 2004 6.5 1139 6S0 76 * Values Exceed Upper Control Limit * I 4533.1 4524.2 4515.8 6DM5 Negative U308 Grades Indicate Less Than Detection Limit. \Nd1 307 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 6 Well I.D. 6DM6 CHRISTENSEN 'RANCH; INTERIOR DEEP SAND MONITOR WELL ..2004 . .. .I I Water Quality Parameters . _. _..._ ._. Units . Upper Control Limit Chloride mg/l Specific ITotal r Conductance Allcalinity pH , mgflas CaCO3 . mho/cm r 1682. 21.9 129.4 Piezometric Elevation Uranium nmsl mg/l II - - -- Date - I ., 4525.1 26 JAN 2004 7.4 338 900 S4 24 FED 2004 7.4 339 91.7 a35 4517.5 23 MAR 2004 7.4 S32 922 3.5 4513.7 19 APR 2004 7.4 838 92.0 3.5 4510.0 24 MAY 2004 7.7 832 93.2 3.5 4507.2 21 JUN2004 7.4 j19 92.1 S.5 27 JUL 2004 7.4 826 908S 3.3 4513 3 4512.5 IS AUG 2004 7.5 807 91.3 3.3 4522.4 25 SEP 2004 7.6 329 94.S 3.3 4520 6 26 OCT 2004 7.4 809 91.5 S3 4520.7 09 NOV 2004 7.5 826 89.8 32 4520.7 27 DEC2004 7. U43 S2.5 S.4 * . 4524.1 6DM6 Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. .;, 308 COGEMA Mining Inc." NRCOEO2REP CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL- Mine Unit 6 Well I.D. 6DM7 Chloride Water Quality Parameters Units Specific Conductance mg/l Upper Control Limit 21.9 i1mho/cm Total Alkalinity ' Uranium pH mg/i as CaCO3 1682 2004 * Piezometn& Elevation mg/l msl 129.4! Date 26 JAN 2004 76 B73 92.6 S2 4511.9 23 FEB 2004 7.2 377 83.4 8.2 4503.2 23 MAR 2004 7.1 S5 3 8.3 4509.3 19APR2004 7.3 373 903 8.3 24 MAY 2004 7.1 359 902 3.2 4516 3 4509.9 21 JUN2004 7.7 S54 95.5 S.3 4534.5 27 IUL 2004 7.6 353 93.2 3.1 4527.4 16AUG 2004 7.2 854 90.3 32 4538.1 27 SEP 2004 6.S S56 37.6 82 4533.3 26 OCr 2004 7.4 854 90.1 8.2 4533.2 09 NOV 2004 70 853 85.1 3.3 4533.2 7.4 874 79.5 3.l 29 DEC 2004 * . 876 Values Exceed Upper Control Limit 4529 2 6DM7 Negative U308 Grades Indicate Less Than Detection Limit. 309 . COGEMA Mining Inc. NRCDEQ2REP : Mine Unit 6 Well I.D. 6DM8 ,. -_.. CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL . Water Quality . Parameters Units , - . ,Total Specific Conductance ,,:.Alkalinity , P mho/cm,,:, . mg/l as CaCO3 Chloride mgI Upper Control Limit 21.9 . - . 1682 . 2004 Piezometric . Elevation Uranium: pH mg/ , 129.4 msl . . I, Date - ... -119 7.9 U32 90.1 B.5 I 23 FEB 2004 * 7.6 S27 864 36 , .- 23 MAR 2004 1 .75 829 900 3.5 I.4510.1 : 7.7 835 19 5 S5 I,.4511.1 - 7.7 S17 87.9 S.5 21 JUN 2004 . 7.4 S03 84.7 86 26 JUL 2004 7.4 812 16.7 86 8 AUG 2004 7.4 813 86.2 8.4 2s SEP 2004 7.7 BIg SB 6 8.5 26 Ocr 2004 * 7.7 820 39 S 74 E24 36.1 8.5 451S.3 7.2 123 76.7 S.6 4526.9 APR 2004 * 24 MAY 2004 * . 26 JAN 2004 - -. -- : 09 NOV 2004 28 DEC 2004 : . * Values Exceed Upper Control Limit l 310 4513.1 4506.3 4505.7 4518.3 . 4520.2 4530.3 4525.8 4525.0 . Negative U30S Grades Indicate Less Than Detection Limit. . 6DM8 COGEMA Mining Inc. NRCDEQ2REP 'Mine Unit 6 Well I.D. 6DM9 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL 7 Cbloride mg/l Specific Conductance jt mho/cm 21.9 2004 C *. -- Total . .pH Alkalinity mg/I as CaCO3 : 1682 Uranium -~ mgl/ . ;. ! --:., . Piezom I .Eevation IElevation msl 129.4 Date 26 JAN 2004 735 831 91.6 8.0 4521.2 23 FEB 2004 76 833 91.3 S.O 4519 S 23 MAR 2004 7.6 S24 89.9 B.0 4517.1 19APR 2004 7.6 S28 91.5 8.2 4514.9 24 MAY 2004 7.3 S13 90.7 S0 4513.6 21 JU 2004 7.7 809 94.0 2.2 4518.4 26 JUL 2004 7,6 804 91.5 8.2 4519.2 18 AUG 2004 7.5 803 896 7.9 4526.6 2s SEP 2004 7.4 BIg 926 8.l 4524.2 26 OCT 2004 718 S13 * 92.3 7.9 4524 B 09 NOV 2004 76 S13 S76 7.9 4518.5 28 DEC 2004 7.6 826 S3.2 7.9 4523.3 * Values Exceed Upper Control Limit 6DM9 Negative U308 Grades Indicate Less Than Detection Limit. KIl 311 c COGEMA Mining Inc. NR CDEQ2REP Mine Unit 6 Well I.D. 6DM1O <-1 . .: .Vater Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL X Chloride SpecificConductance mg/l 21.9 .mho/cm Total Alkalinity .2004 . . .t.. . . U iPiezometric Uramu Elevation pTI mg/i mgll as CaCO3 Msl 129.4, 1682 Date . , 26 JAN 2004 7.6 83 21 FEB 2004 7.6 839 21 MAR 2004 7.4 S22 19APR2004 7.4 836 24 MAY 2004 7.5 820 21JUN2004 7.4 SISI . 261UL 2004 7.4 S17 11AUG2004 76 813 21 SEP 2004 7.6 826 260Cr2004 7.6 09NOV2004 7.3 818 28 DEC 2004 7.4 839 . . . 93 0 83 4521.5 92.1 8.1 4520.8 88.7 8.5 4517.9 90.0 8.5 4513 6 894 89.8 90.3 91.2 92.9 91.3 86.6 83.2 gig 8.5 4513.7 8.5 4516.8 85 4516 8 83 4524.0 84 4523.4 82 4522.8 8.3 4517.3 8.5 4524.2 6DM1O Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Linmit. -312 . . COGEMIA: Mining Inc. NRCDEC2REP Mihne Unit 6 Well I.D. 6DM11 Water Quality . Parameters Units CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL' Chloride mg/l Upper Control Limit .- Specific Conductance ' 1Lmho/cm 22.9 - - Total: Alkalinity mg/l as CaCO 3 1101 .. .. .-... Piezome E Elevation msl Uranium pH ; 2004: mg/I 385.3 - Date 26 JAN 2004 9.7 596 264 9 S.5 23 FED 2004 S.8 596 267.4 S5 4525.4 4521.7 23 MAR 2004 8.7 581 271.6 84 4517.0 19 APR 2004 10.3 593 277.6 8.5 19 MAY 2004 88 562 264.1 85 21 JUN2004 88 594 237.0 8.6 4527.1 26 JUL 2004 S89 572 262.9 S.l 4530.1 17AUG 2004 8.7 580 265.8 86 4538.0 27 SEP 2004 8.5 57S 253.7 8.5 4530.1 26 OCT 2004 8.7 572 265.9 85 4530.5 09 NOV 2004 96 575 250 9 86 4530.5 29 DEC 2004 8.5 594 218.3 86 * Values Exceed Upper Control Limit -, 4535.3 6DMII Negative U308 Grades Indicate Less Than Detection Limit. 313 4517.9 4522.8 COGEMA Mining Inc. NRCDEQ2REP CHRISTENSEN RANCH .INTERIOR DEEP SAND MONITOR :WELL. Mine Unit 6 Well I.D. 6DM12 lWater Quality Parameters Units Ir- Upper Control Limit Chloride mg/i ... Total; , Alkalinity Specific Conductance 22.9 pmho/cm 2004 Piezometric Elevation pH' mg I .mg/l as CaC0 3 msl 385.3 1101 Date 26 JAN 2004 7.9 23 FEB 2004 * - 4540.9 534 133.9 8.6 533 5.1 135.2 8.6 4533.1 S.6 * 4518.3 4519.5 23 MAR 2004 S0 52t 137.9 19APR2004 8.4 533 142.7 8.6 1I9MAY 2004 7.3 523 126.2 S5 4524.1 21JUN2004 8.0 521. 137.9 8.7 4529.5 26 1UL 2004 7.8 524 122.0 36 4527.0 17 AUG 2004 7.9 530 126.5 36 4539.3 23 SEP 2004 7.7 528 124 4 35 4535.5 260CT2004 B.0 516 133.1 3.5 4534 6 09NOV 2004 7.3 525 1247 S.5 i529.3 2S DEC 2004 7.9 529 127.8 37 4530.6 * * Values Exceed Upper Control Limit Negative U308 Grades Indicate Less Than Detection Limit. ,% 314 6DM12 COGEMA Mining Inc. NRCOEO2REP Mine Unit 6 Well I.D. 6DM13 Water Quality Parameters Units Upper Control Limit CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL Chloride mg/l Specific Conductance It mho/cm 22.9 Total Alkalinity 2004 Uranium pH mg/l mg/l as CaCO3 1101 385.3 ; Elevation msl -I t Date 26 JAN 2004 82 636 203.3 8.3 4529.8 24 FE132004 7.9 631 193.7 t.3 4521.7 23 MAR 2004 78 626 191.4 8.3 451S.0 19APR 2004 8.0 628 194.6 19 MAY 2004 7.9 608 1958 8.3 4522.4 21 JUN 2004 78 625 1951 8.3 4527 0 26 JUL 2004 7.9 622 193 3 8.3 4530 6 I7AUG2004 7.9 619 195.3 8.2 4536.1 28 SEP 2004 7.7 628 197.5 8.2 4535.8 26 OCr 2004 S.4 611 202.5 8.2 4544 0 09 NOV 2004 7.8 615 187.7 8.3 4527.7 27DEC2004 7.7 631 177.4 8.4 * Values Exceed Upper Control Limit 833 4517.6 4534 0 6DM13 Negative U308 Grades Indicate Less Than Detection Limit. K> 315 COGEMA Mining Inc. NRCOEQ2REP Mine Unit 6 Well I.D. 6DM14 Water Quality Parameters Total Alkalinity Specific Conductance Chloride Units Upper Control Limit 2004 CHRISTENSEN RANCH INTERIOR DEEP SAND MONITOR WELL mg/l pomho/cm 21.9 pH Uranium mg/l as CaCO3 1682 Piezometric Elevation mg/l -nsl 129.4 Date 27 JAN 2004 7.S 804 23 FEB 2004 23 MAR 2004 19APR2004 246AY2004 211UN 2004 26 JUL 2004 ISAUG2004 28SEP2004 260CT2004 09NOV2004 28 DEC2004 7.9 7.8 7.9 79 7.8 7.7 7.4 7.4 S0 74 7.3 S03 796 806 793 793 802 805 814 796 S06 17 * Values S . Exceed Upper Control Limit 9S I 97.4 97.8 9s.3 982 97.5 93.5 91 a 94.2 97.0 88.3 85.0 85 85 8.5 S5 85 8.5 8.3 S.3 S3 83 8.3 85 4523 8 4521.3 451S 1 4512.2 4511.8 4514.4 4514.8 4517.2 45196 45194 4519.4 4520.0 6DM14 Negative U308 Grades Indicate Less Than Detection Limit. 316 CHRISTENSEN RANCH PROJECT Perimeter Ore Zone Trend Wells COGEMNMining Inc. NR CDE02REP Mine Unit 2 Well I.D. MW78T Water Quality Parameters Units Action Level CHRISTENSEN RANCH PERIMETER ORE ZONE TREND WELL Chloride mg/l .. Specific Conductance iimho/cm 13.6 Total Alkalinity 2004 Piezometric pH I Elevation ;.mg/lasCaCO 3 823.. mg/l 121.3 . . msl . .. Date 06AN2004 9.7; 668 99.1 8.5 4461.7 03 FES 2004 9.8 668 990 8.5 4470.9 08 MAR 2004 9.S 662 98 2 8.5 4493.1 07 JUN 2004 10.1 659 97.1 85 4508.3 08 SEP 2004 9.7 655 97.5 85 4511.3 14 DEC2004 9.4 663 t8.8 84 . -- 4520.0 MW78T - ;* Values Exceed Action Level Negative U308 Grades Indicate Less Than Detection Limit. ;', 317 NRCDE02REP Mine Unit 2 Well I.D. MW87T Water Quality Parameters Units COGEMA Mining Inc.) CHRISTENSEN RANCH ' PERIMETER'ORE ZONE TREND WELL; Chloride mg/I 13.6 Action Level Specific Conductance 1i mho/cm Total Alkalinity. mg/l as CaCO 3 2004' Uranium pH mg/I Piezometn Elevation msl 121.3 823 Date 06 JAN 2004 96 670 99.4 8.6 4466.3 03 FED 2004 9.9 669 100.3 S.4 4482.7 01 MAR 2DO4 9.S 665 98.6 S.4 4489.0 01 JUN 2004 9.9 665 100.0 S.5 4502.2 07 SEP 2004 9.7 652 95.9 8.2 4507.9 13 DEC2004 9.5 667 89.3 8.4 4519.4 * Values Exceed Action Level .MW87T Negative U308 Grades Indicate Less Than Detection Limit. 318 I COGEMA: Mining Inc. NRCOEO2REP CHRISTENSEN RANCH PERIMETER ORE ZONE TREND WELL Mine Unit 5 ,,rell I.D. 5TW-1 r Water Quality : Parameters Units Chloride mg/I Action Level 22.7 Specific Conductance t. rnho/cm Total Alkalinity -:mg/ as CaCO3 1004 2004' Piezometric *pH Uranium : Piezometric . Elevation mg/l msl 134.3 Date 725 105.7 S2 722 105.1 1.6 4562.1 21 MUL2004 82 704 103.1 I5 4570.8 190Cr 2004 85 672 106.2 24 S13APR2004 - 4562.6 E5 21 JAN 2004 * Values Exceed Action Level 4564.7 5TW-1 Negative U308 Grades Indicate Less Than Detection Limit. i7- 319 COGEMA Mining Inci.: NRCDEQ2REP Mine Unit 6 Well I.D. 6TW1 CHRISTENSEN RANCH PERIMETER ORE ZONE TREND WELL 2004 \ Water Quality Parameters Units Chloride mg/I 20 Action Level Specific Conductance pimho/cm Total Alkalinity mg/l as CaCO3 UraniumII Piezometric UrmmElevation pH msl mg/I 95.2 1576 Date 7.3 4536.3 3.1 4521.6 B.2 4524.9 27 JAN 2004 12.3 1446 174.4 23 FEB 2004 114 1375 151.8 22 MAR 2004 93 1294 1202 20 APR 2004 7.5 1232 S2.4 5.3 1205 70.2 32 4505.4 21 JUN 2034 6.7 1107 76.0 3.5 4513.1 26 JUL 2004 7.0 1093 77.9 34 4517.5 17 AUG 2004 63 1117 69.7 3.4 4525.7 2S SEP 2004 68 103 700 3.4 4513.5 26 OCT 2004 76 1069 400 9.9 09 NOV 2004 7.2 1065 49.2 9.3 4505.3 29 DEC 2004 7.1 1015 376 S.9 4511.1 23 MAY 2004 * Values Exceed Action Level * 4509.7 4512.3 6TWI Negative U308 Grades Indicate Less Than Detection Limit 'V 320 j I .COGEMA Mining Inc. NRCOE02REP Mine Unit 6 Well I.D. 6TW2 -z Water Quality Parameters Units. CHRISTENSEN RANCH. PERIMETER ORE ZONE TREND WELL Chloride. mg/l 20 Action Level Specific Conductance :-.Total, .,Alkalinity 2004 -. ;ptmho/cm e rng/lasCaCO 3 1576 Piezometric . Elevation Uranium pH mg/l msl . .95.2 Date : - * 27MAN2004 7.1 S.2 4523.7 24 FEB 2004 6.3 * 1338 74.9 SI 4528.2 23 MAR 2004 5.S 1325 72.4 SI 4529.2 20 APR 2004 5.3 1319 69.7 S.0 4499.3 21 AUN2004 5.2 12S4 70.1 S4 4503.8 27 JUL 2004 10.6 1330 107.7 . 7.7 4504.0 17AUG 2004 5S 1295 69.6 3.1 4517.6 2S SEP 2004 12.9 1392 121.3 S.1 4514.4 26 OCr 2004 5.4 1292 71.5 80 4512.6 09 NOV 2O04 5.2 1237 72.7 3.1 4505.7 23 DEC 2004 5.1 1318 64.4 *S.2 * Values 1356 - 13.6 4542.0 6TW2 Exceed Action Level Negative U308 Grades Indicate Less Than Detection Limit. .. a - 321 COGEMA Mining Inc. NRCDEQ2REP -Mine Unit 6 Well I.D. 6TW3 Water Quality CHRISTENSEN RANCH PERIMETER ORE ZONE TREND WELL. Chloride Parameters Units Action Level mg/I 20 Specific Conductance 1i mho/cm Total Alkalinity 2004 Uranium pH mg/l as CaCO3 1576 mg/l Piezometnc Elevation msl 95.2 Date 27 JAN 2004 5.3 1313 74.3 S.1 4516.7 23 FEB 2004 5.1 1306 67.1 S.0 4515.0 23 MAR 2004 5.7 1306 70 1 S.2 4521.4 20 APR 2004 6.0 1307 72.7 7.9 4494.4 24 MAY 2004 6.1 1302 71.4 3.0 4490.7 21 IUN 2004 6.0 1289 69.7 3.2 4498.9 26 JUL 2004 61 1274 71.2 S.1 "94.5 IS AUG 2004 6.1 1275 69.9 7.9 4515.1 23 SEP 2004 5B 1272 71.5 30 4511.1 26 OCT 2004 60 1276 69.0 7.9 4510 6 09 NOV 2004 62 12SS 74 S 7.9 4504 0 2S DEC 2004 6.1 1311 666 3.2 4511.0 * Values Exceed Action Level 6TW3 Negative U308 Grades Indicate Less Than Detection Limit. K> 322 COGEMA Mining Inc. NRCOEQ2REP CHRISTENSEN RANCH PERIMETER ORE ZONE TREND WELL:. Mine Unit 6 Well I.D. 6TW4 Water Quality Parameters Units . Action Level Specific Conductance . , mho/cm Chloride mg/l 20 * Total Alkalinity i!mg/l as CaCO3 2004 Uramum pH .. Piezometric Elevation mg/I msl 95.2, 1576( Date * 27JAN 2004 51.0 * 2357 *454.2 7.5 4537.7 24 FEB 2004 53.6 * 2565 *502.8 7.3 4533.9 23MAR2004 58.0 * 50S.0 7.3 4532.3 20 APR2004 80.3 3160 755.9 7.1 4499.8 19 MAY2004 70.3 2697 614.9 7.1 4485.9 21JtIN2004 450 * 333.9 7.6 4497.3 27JUL2004 41.6 * 331.6 7.3 4502.3 18AUG2004 75.3 * 2791 * 28 SEP 2004 57.0 * 2341 26 OCT 2004 24t * 1574 09 NOV 2004 23 5 * 1528 182.5 29 DEC2004 19.S 1393 1280 * Values * -2561 -1970 1 . 1912 Exceed Action Level 6 7.2 4517.5 .477.3 7.2 4515.4 * 183.8 7.4 4514 3 7.9 4508.6 7.9 4516.6 - 663 * 6TW4 Negative U308 Grades Indicate Less Than Detection Limit. i 323 COGEMA Mining Inc.. NRCDEO2REP Mine Unit 6 Well I.D. 6TW5 Water Quality Parameters CHRISTENSEN RANCH PERIMETER ORE ZONE TREND WELL . Specific Conductance Chloride I mgl Units pH mg/i as CaC0 3 i mho/cm Uranum :. PiezometricŽ : Elevation mg/I Msl 95.2 1576 20 Action Level Total Alkalinity 2004 Date 271AN 2004 9.2 1579 157 3 7.7 4527.6 23FEB2004 13.6 1629 192.4 7.9 4512.6 22 MAR2004 14.2 1526 144.9 3.0 4516.4 20 APR 2004 11.4 1424 132.1 7.9 4503.3 21 JUN2004 S.3 1245 1004 S0 4506.2 27JUL2004 370 * 2325 473 S 72 4518.4 17AUG2004 43.7 * 2454 510 8 73 4526 S 23 SEP 2004 45.7 * 2400 579.2 7.1 4514.4 260CT2004 222 * I800 334.2 7.3 4513.9 09NOV2004 27.8 * 1882 451.0 7.2 4513.9 29DEC2004 11.0 1251 94 8 78 4521.4 * Values Exceed Action Level * 0 6TW5 Negative U308 Grades Indicate Less Than Detection Limit. K>1 324 CHRISTENSEN RANCH PROJECT Interior Deep Sand Trend Wells COGEMA Mining Inc. NRCDEQ2REP CHRISTENSEN RANCH INTERIOR DEEP.SAND TREND WELL Mine Unit 5 -Well I.D. 5DM8T | Water Quality Parameters Units Action Level Chloride I mg/ 22.8 Specific Conductance' . - -. pmho/cmn Total Alkalinity 2004 Uranium" pH -mg/i as CaCO 1017:. mg/l In I Piezometric ' .Elevation msl 420.9 Date 21 JAN 2004 12APR2004 - 8.7 8.8 20JUL2004 88 190CT 2004 87 * - 136.2 8.1 , 136.4 8.4 4573.7 572 135.8 8.4 4578.1 582 130.2 84 594 596 , Values Exceed Action Level 4565.8 4575.0 5DM8T Negative U308 Grades Indicate Less Than Detection Limit. I325 COGEMA Mining Inc. NRCDE02REP Mine Unit 5 Well I.D. 5DM9T Water Quality Parameters Units Chloride mg/I 22.8 Action Level 2004 CHRISTENSEN RANCH INTERIOR DEEP SAND TREND WELL: Specific Conductance 1imho/cm Total Alkalinity mg/I as CaCO 3 pH ranum mg/I Piezometricl Elevation msl 420.9 1017 Date 21 JAN 2004 10.2 534 151.6 33 4565.6 13APR2004 10.1 533 175.7 8.7 457.3 20JUL 2004 20.7 514 173.3 8.4 457. I 19ocr 2004 10 6 500 147.3 3.3 4571.7 * Values Exceed Action Level 5DM9T Negative U308 Grades Indicate Less Than Detection Limit. 326 COGEMA Mining Inc. NRCDEQ2REP Mine Unit 6 Well I.D. 6DT1 Water Quality Parameters Units Action Level CHRISTENSEN RANCH INTERIOR DEEP SAND TREND WELL Chloride mg/l 21.3 Specific Conductance p mho/cm Total Alkalinity mg/I as CaCO3 1802 2004 Uranium pH mg/ Piezometric Elevation . rnsl 121.7 Date 271AN2004 8.3 S13 97.0 S4 4530.2 23FEB2004 S4 213 954 Y4 4524.5 22 MAR 2004 SI S07 95.4 2.4 4523.1 19APR2004 S0 814 94.7 S.4 4512.9 17MAY 2004 8.3 802 95 6 24 4506.6 21 JUN2004 8.4 793 94.9 S.5 4516.0 26 JUL 2004 S.3 786 9S.7 B,3 4507.5 16AUG2004 2.3 S01 96.0 2.3 4512.3 27SEP 2004 2.1 801 100.9 82 4516.3 26 oCr 2004 S8 793 1001 2 4516.1 09 NOV 2004 S 0 783 91.9 83 4516.1 27 DEC 2004 2.4 798 26 3 8.3 4515.6 * 6DT1 Values Exceed Action Level Negative U308 Grades Indicate Less Than Detection Limit. 327 IRIGARAY PROJECT 5-1-7 and USMT Monitor Wells COGEMA Mining Inc.-, ,IRIGARYRANCH MONITOR WELLS 5-1-7 & USMT SITES ** Mine Unit USMT Well I.D. M-219 Water Quality. . Parameters Units Chloride mg/l ; Total Specific Alkalinity Conductance u mho/cm v mg/I as CaCO3. Upper Control Limit * * Date 1/7/04*,* 11 672 NOTES: * * pH Page 328 Uranium Piezometric Elevation N/R N/A . . .. N/R N/R = Not Recorded N/A = Not Available * No UCL's established for these wells. ** Wells are sampled only once per year. **Per NRC License SUA-1341 Section 10.17. N/R -1 COGEMA Mining Inc. IRIGARY RANCH MONITOR WELLS 5-1-7 & USMT SITES ** Mine Unit USMT Well I.D. M-220 Chloride Total Water Quality Specific Conductance Alkalinity Parameters u mho/cm mg/I as CaCO3 Units mg/I Upper Control Limit Page 329 pH Uranium Piezometric Elevation N/R N/R N/A * Date 1/7/04** NOTES: 18.6 983 N/R N/R = Not Recorded N/A = Not Available * No UCL's established for these wells. ** Wells are sampled only once per year. **Per NRC License SUA-1341 Section 10.17. if COGEMA Mining Inc. I1; - Mine Unit USMT Well I.D. M-221 Chloride Water Quality Parameters I Units mg/I Upper Control Limit * Date 117/04** NOTES: IRIGARY RANCH Page 330 MONITOR WELLS 5-1-7,& USMT SITES,** 10.8 - Total Specific Conductance .- Alkalinity u mholcm - mg/I as CaCO3 * <629 - :pH_ Uranium - '- Piezometric ElevationI.. * , N/R N/R = Not Recorded N/A = Not Available * No UCL's established for these wells.** Wells are sampled only once per year.. *"PerNRC License SUA-1341 Section 10.17. N/R NIR N/A ;. IIit COGEMA Mining Inc. Mine Unit 5-1-7 Well I.D. M-1 IRIGARY RANCH MONITOR WELLS 5-1-7 & USMT SITES ** Water Quality Parameters Units Upper Control Limit Chloride * * * Date 1/7/04** 36.5 716 N/R NOTES: mg/l Specific Total Conductance Alkalinity u mho/cm mg/I as CaCO3 N/R = Not Recorded N/A = Not Available * No UCL's established for these wells. ** Wells are sampled only once per year. **Per NRC License SUA-1341 Section 10.17. Page 331 pH ' Uranium Piezometric Elevation N/R N/R N/A COGEMA Mining inc. ' 1RIGARY l RANCH MONITOR WELLS 5-1-7 & USMT SITES ** Mine Unit 5-1-7 Well I.D. NM-3 i :Total Specific Water Quality Chloride Conductance A.'. Alkalinity Parameters _ u mho/cm mg/I as CaCO3. -Units mg/I *. * Upper Control Limit * Date 117/04** NOTES: 11.1 640 ~'; N/R' N/R = Not Recorded N/A = Not Available * No UCL's established for these wells. ** Wells are sampled only once per year. **Per NRC License SUA-1341 Section 10.17. pH Page 332 Uranium Piezometric Elevation , I N/R NIR NIA ll l COGEMA Mining Inc. Mine Unit 5-1-7 Well I.D. M-4 Water Quality Parameters Units Upper Control Limit Chloride Date 1/7104** 27 NOTES: K>- IRIGARY RANCH MONITOR WELLS 5-1-7 & USMT SITES *^ mg/I Specific Total Conductance Alkalinity u mho/cm mg/l as CaCO3 1072 N/R Page 333 pH Uranium Piezometric Elevation NIR NIR N/A N/R = Not Recorded N/A = Not Available * No UCL's established for these wells. ** Wells are sampled only once per year. **Per NRC License SUA-1341 Section 10. 17. /1- COGEMA Mining Inc. IRIGARY RANCH MONITOR WELLS 5-1-7 & USMT SITES ** Mine Unit 5-1-7 Well I.D. SM-1 Total Specific Alkalinity Conductance u mho/cm mg/I as CaCO3 Water Quality Parameters Units Chloride Upper Control Limit * * * Date 1/7/04** 14.7 755 N/R NOTES: mg/l N/R = Not Recorded N/A = Not Available * No UCL's established for these wells. ** Wells are sampled only once per year. **Per NRC License SUA-1 341 Section 10.17. Page 334 pH Uranium Piezometric Elevation N/R N/R N/A APPENDIX 3 ALARA Audit The 2004 As Low As Reasonably Achievable (ALARA) audit is scheduled to be completed in March 2005. When finished, copies will be forwarded to attach to this report as Appendix 3. APPENDIX 4 General Location and Environmental Monitoring Maps (9. THIS PAGE IS AN OVERSIZED DRAWING OR FIGURE THAT CAN BE VIEWED AT THE RECORD TITLED: CHRISTENSEN RANCH "AREA FACILITIES.-LOCATION MAP PERMIT TOMINE NO. 478?? REVISED: 12-AUG -2004 WVITHIN THIS PACK(AGE..... D'O1 THIS PAGE IS AN OVERSIZED DRAWING OR FIGURE THAT CAN BE VIEWED AT THE RECORD TITLED: IRIGARAY-PROJECT ."GENERALLOCATION MAP PERMIT TO. MINE NO. 478" REVISED FEB 22, 2005 WITHIN THIS PACIKAGE..... D-02 . . . . . .- THIS PAGE IS AN OVERSIZED DRA'WING OR FIGURE THAT CAN BE VIEWED AT THE RECORD TITLED: X - ' . ^ ,R., ^ - .A N "IRIGARAY AND CHRISTENSEN RANCH ENVIRONMENTAL MONITORING STATION LOCATIONS" FIGURE NO. 5-5 WITHIN THIS PACKAGE..... D=03