Loading...
HomeMy WebLinkAboutDRC-2009-006289 - 0901a0688014c590Stateof Utah GARY K. HERBERT (it)venior GREG DELL Licuh'nant Governor trc' .^CCHOo(c.9^<\ Department of Environmental Qualily Anmnda Smilh Execinivi' Direcmr DIVI.SION OF RADIATION CONTROL Dane L. FincifrOLk Direilor TO: FROM: DATE: SUBJECT: Loren Morton PhilCioble On/ July 14,2009 MEMORANDUM ] Revicjw ofthe 1" Quarter, 2009 (dated June 1, 2009) Routine Groundwater Monitoring Report Groundwater Discharge Pemiit (Permit) UG370004 Denison Mines (USA) Corp. (DUSA) White Mesa Mill, Blanding, Utah This isa summary ofthe 1" Quarter (January - March) 2009 sampling event and all accelerated monitoring events during lhe 1" Quarter as documented in the June 1, 2009 DUSA Report, which was received by the DRCon June 1,2009. After review of this report, DRC staff findings are as follows: l)TheDUSA T' Quarter, 2009 Groundwater Moniioring Report was received by its respective due date (June 1). 2) Monitoring well MW-23 was not analyzed for thallium during the February monitoring event, as required by the Permit. 3) The March, 2009 Trip Blank was lost due to an analytical equipment ertor, therefore the Trip Blank results weren't compared to the original sample results. 4) Several monitoring wells were not purged for two casing volumes before sample collection. 5) Water Table Contour Map was created with data greater than a time difference of five calendar days. 6) Certain QA/QC sample data problems are apparent. 7) Sunimary of the apparent violations is also provided below. 1.0 Accelerated Monitoring and POC Wells Exceeding GWCL When a monitoring well has a pollutant that exceeds a GWCL set forth in Table 2 of the Permit it is in Probable Out of Compliance (POOC) status. DUSA is then required to immediately initiate accelerated sampling of thai pollutani (see Permit, Part LG.l). When monitoring wells have parameters that have exceeded the GWCL two or more consecutive times they may be: in Out of Compliance (OOC) status if the contaminant concentration also exceeds the mean and second standard deviation, or statistically significantly higher as determined by some EPA guidance (see Permit, Part I.G.2). However, in a Notice of Violation (NOV) dated August 24, 2006, the DRC decided a parameter had to exceed the Ground Water Quality Standard (GWQS) set forth in Table 2 ofthe Pennit for two or more consecutive times to be in OOC status. This prcx;ess will continue until the Background Groundwater Quality Reports submitted on December 29, 2006 and May 31, 2007) has been approved by the DRC. 168 Nonh 1950 West • .Sail Uke City, UT Mailing Address- P.O.Box 144850-Salt Uke Cily, UT 84IM-4850 Telephone (8(H) 536-42.50 • Fax (801) 5.^3-40^7 'TDD (SOn 536-4414 wviw.iltq.uinh.^ov Pnnled on KM* recycled paper Page 2 In the tables listed below are monitoring wells with parameters currently in POOC (normal font) or OOC (in bold and italics) status. Well MW-14 MW-26 MW-32 • Wells Monitored Quarterly Accelerated to Monthly Monitoring Class Class TTT water Class III water Class III water ^Position D-4A CF-P, C-2 C-2 Parameier manganese uranium chloroform dichloromethane manganese uranium cadmium gross alpha-i- iron manganese nickel Date of First Exceedance of GWQS/GWCL March 2005 March 2005 March 2005 June 2005 March 2005 March 2005 March 2005 March 2007 March 2005 March 2005 March 2005 Date Accelerated Monitoring First Required April 2005 April 2005 April 2005 July 2005 April 2005 April 2005 April 2005 April 2007 April 2005 April 2005 April 2005 * D = Down-gradient: U = Up-gradient; C = Cross-i^radjeiu; CF-P = chlorof onn pumping well; L2,3,4A = Celt # -1- = Well/parameters not iri excess of their respective GWCL in rhe J" quarter of 2009 Wells Monitored Semi-annually Accelerated to Quarterly lyionitoring Well MW-1 MW-3 MW-5 MW-12 MW-15 MW-17 MW-18 Class Class 11 water Class 111 water Class 11 water Class TTI water Class 111 water Class III water Class II warer *Position t)-l D-4A D-3 D-3 D-+A C-4A U-1 Parameter manganese+ THF+ manganese selenium thallium-f- THF+ uranium fluoride manganese-!- THF+ THF-h uranium .selenium uranium uranium inanganese-f- thallium uranium Date of First Exceedance of GWQS/GWCL 4"^ Quarter 2005 2"" Quarter 2005 4"'Quarter 2005 2"" Quarter 2(K)6 3'^ Quarter 2005 3''' Quarter 2006 3"' Quarter 2005 2"" Quarter 2(X)5 2"'' Quarter 2005 4"^ Quarter 2005 2™' Quarter 2005 2"" Quarter 2005 2'"' Quarter 2005 2"" Quarter 2005 2"'Quarter 2005 4'" Quarter 2007 2'"^ Quarter 2005 2'*'^ Quarter 2005 Date Accelerated Monitoring First Required r'Quarter 2006 3"^ Quarter 2(K)5 r'Quarter 2006 3^^ Quarter 2006 4"^ Quarter 2005 4"^ Quarter 2006 4"*^ Quarter 2005 3^'' Quarter 2005 3'^ Quarter 2005 I"Quarter 2006 3'" Quarter 2005 3'" Quarter 2005 3"^ Quarter 2005 3^^* Quarter 2005 3'*' Quarter 2{)()5 1"Quarter 2008 3'^ Quarter 2005 3^^ Quarter 2005 Page 3 MW-19 Class 11 water U-I nitrate 4-nitrite-i- fluoride selenium-i- thallium-t- uranium4- 4^ Quarter 2008 4'' Quarter 2005 2"'Quarter 2005 4"^ Quarter 2005 2"" Quarter 2005 1" Quarter 2009 1" Quarter 2006 3^ Quarter 2005 I "Quarter 2006 3'^^ Quarter 2005 * D = Down-gradient; U = Up-gradient; C = Cross-gradient; 1,2,3,4A = Cell # -I- = Well/parameters not in e.xcess of their respective GWCL in the V quarter of 2009 Some ofthe parameters listed in the table above were not found to t>e in excess of their respective GWCL during the l" Quarter. 2009 monitoring events. The following wells have parameters currently in POOC or OOC status that did not exceed their respective GWCL (lasl time parameter above GWCL in parenthesis) during the T' Quarter, 2009 sampling events: • MW-1: Manganese (I" Qtr 2007) and THF (4"^ Qtr 2007) • MW-3: THF (3''' Qtr 2006) and Thallium (4^^ Qtr 2007) • MW-5: Manganese (4*^ Qtr 2008) and THF (4*^ Qlr 2005) • MW-12: THF (P'Qtr 2007) • MW-18: Manganese (4'^ Qtr 2007) • MW-19: Nitrate -H Nitrite (4" Qtr 2008), Selenium (l" Qtr 2006), Thallium (P' Qtr 2008), and Uranium (4* Qtr 2007) • MW-32: Gross Alpha (February 2008) 2.0 Parameters That Were Not Analyzed or Reported as Required by the Permit MW-23: As documented in the 1"" Quarter, 2009 Report, monitoring well MW-23 was sampled on February 11, 2009, as evidenced by the Field Dala Worksheet for well MW-23 in Tab B. The analytical report for the well was provided in Tab G ofthe report; however the analylical report did not include a resull for thallium. Failing to report a result for thallium in MW-23 is in violation of Part I.F.I ofthe Permit. This is a continuing problem. On April 21, 2009, DUSA was issued a NOV (Docket No. UGWG9- 04) for failing to report a resull for TDS in well MW-25 in the 4'*' Quarter 2008 Report, for the November 2008 monitoring event. In a May 22, 2009 response to the NOV, DUSA claimed it has laken the following steps to cortect the violation: /. "Mill stajfhave hccn instructed to advise Denver corporate ejwironmental staff in writing, by email or otlien\i.se, of any re-sampling required at the MUI; ii. Denver corporate environmental staff has been advised to contact Mill staff prior to preparation of quarterly Groundwater Monitohng Reports to detennine iftiiere iiad been any re-sampling or other unusual sampling or analylical issues during tlie period; iii. Denver corporate environmental staff has been reminded ofthe need to carefidly review the analytical results to ensure that the results include results for each constituent in all wells required to be sampled during the reporting period; iv. Denver corporate environmenlal staff has been reminded to review the Field Data Worksheets carefully to ensure that tlxey contain the required infonnation and do not indicate any problem areas that require further review; and V. DUSA is reviewing and revising the cfiecklists it employs wfien preparing its quarterly Groundwater Monitoring Reports to ensure thai they include the items in (ii), (iii) and (iv) above as well as all other pertinent matters, including matters identified in the responses below in connection with the other r^\'o violations cited in the Notice." Page 4 DRC staff believes enforcement discretion is appropriate in this matter, in that, the well MW-23 February I L 2009 sample was collecled prior to the DUSA commitment that this issue would be resolved commencing with the 2'"^ Quarter, 2009 Groundwater Monitoring Report. However, if DUSA fails to analyze for any analyte in any well in the future, the Executive Secretary will take the appropriate escalated enforcement action. 3.0 March, 2009 Trip Blank was Lost Due to Analytical Equipment Error Trip blanks are used to assess cross-contamination introduced into the sample containers by volatile organic compounds (VOCs) through diffusion during sample transport and storage. DUSA included a Trip Blank with the March 2009 groundwater samples in the cooler that was senl to the analytical laboratory; however, the analytical report shows that the Trip Blank was lost due to an analytical equipmeni error. Therefore- there weren't any March. 2009 Trip Blank results to compare to the original sample results. This is in violation of Seelions 4.3,1 and 9.13 ofthe DUSA QAP and Part I.E. 1(a) of the PeiTnii. 4.0 Monitoring Wells Not Purged for Two Casing Volumes As slated in Section 6.2.7(d)(v) of the DUSA QAP. two casing volumes must be evacuated from the well before lhe sample is collected. The DUSA QAP directs DUSA to first calculate the amount of time to evacuate two casing volumes and then pump for lhat length of time. As shown in the table below, DUSA failed to evacuate two casing in 11 wells during the 1" Quarter (February), 2009 monitoring event and one well during each of lhe January and March, 2009 accelerated monitoring events. Groundwater Moniioring Event 1" Qtr. 2009 r'Qtr, 2009 1" Qtr, 2009 1'' Qtr, 2009 1'' Qlr, 2009 1 ~' Qlr, 2009 1" Qlr, 2009 r'Qlr, 2009 1" Qlr, 2009 1'' Qlr. 2009 r'Qtr, 2009 January. 2009 MiiTth. 2009 Momtoring Well MW-?'" MW-ll '" MW-17'" MW-t8"' MW-i9"' MW-22'" MW-2.S'" MW-27'' • M\V-28'" MW-31 '" MW-32 ''' MW-32'" MW-32''' DUSA CalcuJated Two Casing Volumes 41.34 51.34 45.64 81.44 128.17 61.22 49.92 56.50 41.55 77.86 71.54 71.88 72.22 DUSA Calculated Purge Rate .33 ppm .33 gpm .33 ppm .33 ppm .33 ppm .33 ppm .33 ppm .33 tpm .33 ppm .33 epm .33 gpm .33 epm .33 ppm DUSA Calculated Time 10 Purge Two Casing Volumes (Minutes) 125 155 138 246 383 18.5 151 171 125 235 216 217 21S Reported Time Well Purged (Minutes) 120 120 120 120 120 120 120 120 120 120 120 120 120 Total (Gallons Purged Before Sample Collection 39.6 39.6 39-6 39.6 39.6 39.6 39.6 39.6 39.6 39.6 39.6 39.6 39.6 Foot notes: 1) Dala Ibr this well 2) Data lor this well 3) Dma for this well was obtained from Tab B of the l" Quaner 2009 Groundw;iter Monitoring Repon was obtained Irom Tab C ofthe P' Qtianer 2009 Groundwater Monitoring Report was obtained from Tab D of the V Quarter 2009 Groundwater Monitoring Repon Section 6.2.7(d)(v) of the DUSA QAP. stales: "..,. If the well is purged to dryness or is purged such that fill recovery exceeds two hours, the well should l}e .sampled as soon as a sufficient volume of groundwater is available to fill sample containers... " The field sheets show that DUSA pumped the wells for two hours and collecled the samples. However, there was no mention lhat any of these wells were purged to dryness on the field sheets. It appears DUSA assumed lhat these wells would not be able lo fully recover within two hours. However, no documentation has been submitted by DUSA that shows that these wells won't fully recover in two hours. Therefore, failure to excavate two casing volumes before collecting Page 5 groundwater samples is in violation of Section 6.2.7(d)(v) of the DUSA QAP and Part I.E. 1 (a) of the Pemiit. 5.0 Stabilisation of Indicator Field Parameters Not Reached Before Sample Collection As slated in Section 6,2.7(d)(v) ofthe DUSA QAP: "purging is completed after two casing volumes have been removed and the field parameters pH, temperature, specific conductance, redox potential (Eh) and turbidity have stabilized to within 10% over at least two consecutive measurenrKnts." The l^' Quarter, 2009 Report showed thai the field parameters pH, temperature, specific conductance, and redox potential (Eh) reached stabilization in each well before sample collection for lhe T' Quarter, 2009 (February) monitoring event. However, this is not true for turbidity. As shown on the table below, there were 17 wells in the 1" Quarter, 2009 and one well in the March. 2009 monitoring events where turbidity stabilization wasn't reached before sample coUection: Groundwater Monitoring Event 1" Qtr, 2009 r'Qlr, 2009 1'' Qlr, 2009 1" Qlr, 2009 P'Qlr, 2009 1 •' Qtr, 2009 1 ^ Qtr. 2009 1" Qlr. 2009 i"Otr, 2009 l"Qir. 2009 1" Qtr, 2009 1" Qir. 2009 r'Qtr. 2009 1" Qlr. 2009 r'Qlr. 2009 r'Qtr. 2009 March. 2009 Well MW-1''' MW-3'" MW-3A'" MW-5'" MW-11 •" MW-12'" MW-14'" MW-15"- MW-17'" MW-23'" MW-25'" M\V-27'" MW-28"' MW-29''' MW-30''' MW-3i '" MW-32'-' Turbidity 1.08 @ 23.1 palloiis 0.7 @ 4.05 pallons 0.15 @ 6.6 pallons 0.35 (^ 20.4 eallons 0.85 & lS.15pallons 0.69 <&• 18.15 pallons 0.04 @ 19.8 pallons 0.14 (3)26.4 pallons 0.1 ^21.45 gallons 0.23 C9> 14.85 gallons 0 @ 28.05 gallons 0.13 @ 29.7 gallons 0 @ 26.4 gallons 2.14 (5' 19.8 gallons 0 <3' 24.75 gallons 0.0.5 <(''> 24.75 gallons 6.29 <!>'' 31.35 gallons Turbidity 1.22 ^'33 gallons 0.21 @~6.6p;Ulons 0.2 & 8.25 gallons 0.19 (^ 36.3 gallons 0.68 @ 36.3 gallons 1 17 @ 24.75 gallons 0.06 & 28.05 gallons 0.1 @ 36.3 gallons 0.13 iS>36.3 gallons 0.45 te> 19.8 gallons 0.26 te' 36.3 gallons 0.07 Q" 36.3 gallons 0.09 (.«} 36.3 gallons 3.12 28.05 gallons 0.25 36.3 gallons 0.2.5 <'? 36.3 pallons 4.6S ^ 37.95 pallons Difference 12.96% -70'* .33.33'7f. -45.71*;}. -19.99':4 69.5 6^^. 49.99':t -28.57'7i 30^*. 95.65-7^ zn -46.15<J ttj 45.79% w 400% -25.59% Fooinouisi 1) Data for thi.s well was obtained from Tab B of the T' Qiianer 2009 Groundwater Moniioring Repoil 2) Dala for this well was obtained from Tab D of the T' Quaner 2009 Groundwater Monitoring Repori Failure lo reach stabilization for turbidity before sample collection is in violation of Section 6.2.7(d)(v) of the DUSA QAP and Part I.E. 1(a) ofthe Pemiit, 6.0 Turbidity Not Measured in Monitoring Wells MW-20 and MW-22 During lhe l" Quarter. 2009 (February) monitoring event, monitoring wells MW-2() and MW-22 were not measured for turbidity . During the March 2009 accelerated monitoring event, monitoring wells MW-14 and MW-32 were also not measured for turbidity. The Field Data Worksheet for each well noted that turbidity was broken (i.e. turbidity measuring instrument wasn't working). Failure to measure for turbidity in wells MW-20 and MW-22 during the February 2009 moniioring event and wells MW-14 and MW-32 in the March 2009 monitoring event are in violation of Sections 6.2.2(a) and 6.2.7(d)(v) ofthe DUSA QAP and Part I.E. I (a) of lhe Permit. 7.0 Groundwater Samples Coiiected with Turbidity Measurement > 5 NTU As stated in Section 6.2.7(d)(v) of the DUSA QAP; ".., turbidity measurement in the water siwuld be 5 NTU prior to sampling unless the well is characteri-ed by water that has a fiigher turbidity. " During the I' Page 6 Quarter, 2009 (February) monitoring event, the Field Data Worksheet for monitoring wells MW-24 and MW-32 showed lhat gi'oundwater samples were collecled above the 5 NTU standard (see table below). Groundwater Monitoring Event r Qlr, 2009 r'Qlr, 2009 Well MW-24'" MW-32'" Turbidity 13.3 6.8 Turbidity 13.5 6.47 Footnotes: 1) Data for this well was obtained from Tab B of the 1" Quarter 2009 Groundwater Monitonng Report Failure to collect groundwater samples below the 5 N7TJ standard is a concem in lhat excess turbidity has the potential to bias groundwater quality analytical results. Section 6.2.7(d)(v) ofthe DUSA QAP needs improvement, in that its current wording "...turbidity measurement in the water should be<5 NTU prior to sampling... " needs to be strengthened in the next version of the DUSA QAP to make it a requirement before sample collection. 8.0 Water Table Contour Map Data Not Contemporaneous As stated in Section 6.1 ofthe DUSA QAP, deplh to groundwater shall be measured quarterly in all POC wells, piezometers, and chloroform investigation wells. The elevation data collected shall be used to create a Water Table Contour Map. This Water Table Contour Map will show "groundwater elevation dala for the quarter and will be contemporaneous for all wells on site, not to exceed a maximum time difference of five calendar days" (see Section [ 1 of the QAP). Groundwater head monitoring during the 1" Quarter, 2009 monitoring event was collected between February 2 and March 10, 2009. The Water Table Contour maps shown in Tab H of the 1" Quarter Report was created with dala collected greater than the maximum time difference of five calendar days. This was verified by comparing the deplh to water (DTW) measurements shown in the DUSA summary tables in Tab H, to the elevations reported on the Water Table Contour Map. Three examples from the t*' Quarter, 2009 Report is shown in the table htelow: Groundwater Monitoring Report r Qtr, 2009 r' Qtr. 2009 r'Qlr, 2009 Well (Date Measured) MW-20-February 2. 2009 PIEZ-1 -Fcbrtjaiy 17, 2009 TW4-11 -March 10,2009 DUSA DTW Measuremeni (DTW) 80.69"'" 62.94-'" 59.82"" Measuring Poinl Elevation (MPE) 5.540.60'''' 5.655.46''" 5.623.62' '" MPE - DTW = Groundwater Elevation 5,540.60-80.69 = 5.459.91 5.655.46-62.94 = 5,592.52 5.623.62-59.82 = 5,-563.80 Groundwate r Elevation as found on DUSA Map 5.460''" 5,593"" 5,564'"' Footnotes: 1) Data obtained from Tab H of lhe 1** Quaner 2009 Groundwater Monitoring Report 2) Data obtained from the GWHEAD-DUSA.XLS DRC spreadsheet The DTW measurement for MW-20 was collected on February 2, 2009, while the DTW measurement for TW4-11 was collected on March 10, 2009. These two data points represent the maximum separation between events in the 1" Quarter, 2009. Therefore, the Water Table Contour map found in the l" Quarter, 2009 Report is in violation of Section 11 of the DUSA QAP and Part I.E. Ua) of the Permit. This is a continuing problem. On April 21, 2009, DUSA was issued a NOV (Docket No, UGWG9- 04) due to the fact that the 3''' and 4"^ Quarter, 2008 Water Table Contour Maps were created with elevation dala thai was not contemporaneous. In a May 22, 2009 response to the NOV, DUSA commitled that: "starting with the 2"'' Quarter of 2009. Mill personnel will conduct a separate campaign to lake water Page 7 measurements from all required wells and piezometers independently of sarnpling, to ensure that oil such water level measurements arc obtained within the required five-day period. " DRC staff believes enforcement discretion is appropriate in this matter, in lhat, the 1^' Quarter, 2009 DTW measurements were collected prior to the May 22, 2009 DUSA commitment that this issue would be resolved commenting wilh the 2"'^ Quarter. 2009 Groundwater Monitoring Report. If DUSA fails to create Water Table Contour Maps with groundwater elevation data that are contemporaneous with each olher in the future, the Executive Secretary should take the appropriate escalated enforcement action. 9.0 Previous Monitoring Events QA/QC Sample Data Problems QA/QC problems found in the 3"^ and 4*^ Quarter. 2008 groundwater monitoring events showed a number of issues in non-compliance with the DUSA QAP (for details see March 29, 2009 DRC Memo). These antecedent problems included: • In the 3"' Quarter 2008 Report. DUSA failed lo provide chain of custody forms for the July and September 2008 monitoring events; therefore. DUSA was in violation of Sections of 7.2. 9.3(d), and 11 ofthe QAP and Parts I.E. I (a) and II. A ofthe Permit. This problem did noi occur in the I" Quarter. 2009 report. • The 3"* and 4"' Quarter, 2008 Water Table Contour Maps were created with elevation data lhat were not contemporaneous, i.e. collected within 5 calendar days or less. These maps were in violation of .Section 11 of the DUSA QAP and Part I.E. 1 (a) of the Permit. This is a continuing problem in the 1" Quarter, 2009 Report. • During the 4^ Quarter 2008 monitoring event. Relative Percent Difference was greater than 20% in original sample (\fW-l7, 0.53 /ig/L) compared to duplicate sample (AfW-70, 0.68 pg/L) for thallium (24.79%), see Table 6. This QA/QC problem was in violation ofSection 9.1.4(a) ofthe QAP. The DRC policy when dealing with RPD is as followed (see 1/10/08 DRC Letter, p.2 and 4): 1) When DUSA submits an original and duplicate sample to the DRC for reporting purposes, the DRC wilt use the sample with the highest concentration .submitted to determine compliance. 2) Starting with the submittal ofthe 4*^ Quarter 2007 Groundwater Report, DUSA will be required to provide documentation for each RPD calculation used during its review of analytical reports in a spreadsheet to be included in each groundwater report submitted to the DRC. lO.O QA/QC Sample Data Problems -1'* Quarter, 2009 The following are QA/QC problems that occurred in the monitoring events during the T' quarter of 2009. The issues listed below are in non-compliance with the QAP and details can be found in lable 3 attached lo this memo. 1" Quarter 2009. Sampling Dale: February 2 - 16. 2009 (Table 3) • The field blank (MW-60) had detectable concentrations of iron, chloroform, dichloromethane. fluoride, sulfate, TDS, bicarbonate, and calcium. • The field blank (MW-60) was also analyzed for nutrients, heavy metals, gross alpha, VOCs, and inorganics. According lo lhe QAP, DUSA is not required to collect a field blank. However, if DUSA wants to collect a field blank for in house QA/QC, the DRC has no problem with it as long as DUSA doesn't use the field blank resuhs lo Hag or disqualify the groundwater sample results. Pages • Relative Percent Difference was greater than 20% in original sample (MW-l I, 138 /ig/L) compared lo duplicate sample (MW-70, 110 /ig/L) for iron (22.58%), see Table 3. This is in violation ofSection 9.1.4(a) of the QAP. When DUSA submits an original and duplicate sample to the DRC for reporting purposes, the DRC will use the sample with the highest concenlralion submitted to detennine compliance. However, both samples were below the GWCL for iron (5.500/tg/L). March 18. 2009 Accelerated Monitoring Evenl (Table 3) • The field blank (MW-60) had detectable concentrations of chlorofonn. • The field blank (MW-60) was also analyzed for heavy metals, VOCs, and gross alpha. According to the QAP, DUSA is not required to collect a field blank. However, if DUSA wants to collect a field blank for in house QA/QC, the DRC has no problem with it as long as they don't use the field blank results to flag or disqualify the groundwater sample results. It doesn't appear lhat DUSA is using the presence of detectable concentrations in the field blanks in T' Quarter. 2009 Groundwater Report to fiag or disqualify the groundwater sample results. Furthermore, the approved QAP is currently silent on how field blanks results should have a bearing on groundwater sample interpretation. n.O Violations Where Pursuing a Notice of Violation is Recommended 1. The March, 2009 Trip Blank was lost due to an analylical equipment error. Therefore, there were not any March, 2009 Trip Blank resuhs to compare lo the original sample results for 11 VOC parameters in three wells. This is in violation ofSection 9.13 of the DUSA QAP and Part I.E. 1(a) ofthe Permit. 2. DUSA failed to evacuate two casing volumes before collecting groundwater samples in 13 wells during the January, February, and March monitoring events. This is in violation of Section 6.2.7(dXv) of lhe DUSA QAP and Part I.E. I (a) of the Permit. 3. DUSA failed to allow field turbidity lo stabilize before collecting groundwater samples in 17 wells during the February and March monitoring events. This is in violation of Section 6.2.7(d)(v) of the DUSA QAP and Part I.E. I (a) of the Pennit. 4. DUSA failed to measure for field turbidity in wells MW-14 and MW-32 forthe January, 2009 monitoring event and wells MW-20 and MW-22 for the Febmary, 2009 monitoring event. This is in violation of Sections 6.2.2(a) and 6.2.7(d)(v) of the DUSA QAP and Part I.E. 1(a) ofthe Permit. 12,0 DRC Staff Reconunendations for Enforcement Discretion 1, DUSA failed to report a result for thallium in well MW-23 in the T' Quarter, 2009 Report for the February, 2009 monitoring evenl. This isa violation of Part l.F.l ofthe Pemiit. This is a continuing problem. On April 21. 2009, DUSA was issued a NOV (Docket No. UC.WG9-04) for failing to report a result for TDS in well MW-25 in the 4"^ Quarter 2008 Report, for the November 2008 monitoring evenl. However, DRC' staff believes enforcement discretion is appropriate in this matter, in that, the well MW-23 February 11, 2009 sample was collected prior to the May 22, 2{K)9 DUSA commitment that this issue would be resolved commencing with the 2™' Quarter, 2{X)9 Groundwater Monitoring Report. However, if DUSA fails to analyze for any analyie in any well In the future, the Executive Secretary will lake the appropriate escalated enforcement action. Page 9 2. The r' Quarter, 2009 Water Table Contour Map was created with elevation data that was not contemporaneous, i.e. collecled within 5 calendar days or less. These maps are in violation of Section 11 of the DUSA QAP and Part I.E, 1 (a) of the Pennit. This is a continuing problem. On April 2 L 2009, DUSA was issued a NOV (Docket No. UGWG9-04) due to the fact that the 3"' and 4*^ Quarter, 2008 Water Table Contour Maps were created with elevalion data that was not contemporaneous. DRC staff believes enforcement discretion is appropriate in this matter, in thai, the T' Quarter, 2009 DTW measurements were collected prior to the May 22, 2009 DUSA commitment that this issue would be resolved commenting wilh the 2"*" Quaner, 2009 Groundwater Monitoring Report. l( DUSA fails to create Water Table Contour Maps with groundwater elevation data lhat are coniemporaneous wilh each other in the future, the Execuiive Secretary should take the appropriate escalated enforcement action. 13.0 DRC Staff Recommendations for Improvement I. During the Febmary, 2009 moniioring event. DUSA failed lo collect groundwater samples in moniioring wells MW-24 and MW-32 that were below the 5 NTU standard. Failure to collect groundwater samples below the 5 NTU standard is in violation of Section 6.2.7(d)(v) of the DUSA QAP and Part I.E. 1(a) of the Pennit. Unfortunately, the way ihis requirement is written in the DUSA QAP "...turbidity measurement in the water should be < 5 NTU prior to .sampling... " makes it difficult to enforce. The wording ofthis requirement will t^e strengthened in the next version ofthe DUSA QAP lo make this requirement enforceable. This issue with be brought to DUSA attention during the closeout meeting for the I" Quarter, 2009 Report. APPENDIX 1 QA/QC Tables TABLE 2 MONITOH WELLS WITH CONTAM IN ANT(S) WITH GROSS ALPHA COUNTING VARIANCE EXCEEDING 20% (pca) Well Contaminant(s) MW-1 MW-2 MW-3 MW-3A MW-5 MW-11 MW-12 MW-14 MW-15 MW-17 MW-18 MW-19 MW-20' MW-22' MW-23* MW-24' MW-25- MW-26 MW-27* MW-28* MW-29* MW-30' MW-31 - MW-32 1st Otr 2009 Jan. - March 0.9 (4-/-0.3) 0.6 (+/-0.4) 1.2(+/-0.4) 1.4(+/-0.4) 3.8 (+/-0.8) 1.4(-i-/-0.4} 1.3 (+y-0.4) 2.4 (+/-0.6) 1.7(-h/-0.5) 1.7{+/-0,4) 0.7 (4-/-0.3) 1.1 (+/-0.4) Concentration -I- Error Term 1,2 1.0 1.6 1.8 4.6 1.8 1.7 3.0 2.2 2.1 1.0 1.5 Counting Variance 33% 66.6% 33% 28.5% 21% 28.5% 30.7% 25% 29.4% 23.5% 42.8% 36.3% Groundwater Gradient Relationship to Tailing Cells Up gradient of lhe site. Directly southwest of the southwest corner and down gradient of Tailing Cell 1. Down gradient ol all the tailing cells Down gradient of all the tailing cells Down gradient of Tailing Cell 3. Directly down gradient of Tailing Cell 3. Down gradient of Tailing Cell 3. Directly down gradient of Tailing Cell 4A. Directly near the southwest comer and down gradient of Tailing Cell 4A Directly south ol and down gradient of Taitina Cell 4A. UD gradient of the site. Directly northeast and up gradient of mill site. Down gradient of all the tailing cells Down gradient of all the tailing cells Directly on the southwest comer and down gradient of Tailing Cell 3. Directly on the southwest comer and down gradient of Tailing Cell 1. Directly on the southeast comer and cross gradient of Tailing Cell 3. East and cross gradient ofTailing Cell 2. MW-26 isa pumping well. Pumping from this well will capture some groundwater under the eastside of Tailing Cell 2. Near the northeast corner and upgradient of Tailing Cell 1. Directly on the north side and up gradient of Tailing Cell 2, and directly on the south side and down gradient of Tailing Cell 1. Directly on the south side and upgradient of Tailing Celt 3, and directly on the south side and down gradient of Tailing Cell 2. Directly on the north side and upgradient of Tailing Cell 3, and directly on Ihe south side and down gradient of Tailing Cell 2. Directly on the north side and upgradient of Tailing Cell 3, and directly on the south side and down gradient of Tailing Cell 2. Directly near the southeast corner and cross gradient of Tailing Cell 2 and direcfiy near the northeast corner and up gradient of Tailing Cell 3. * = Unregulated well Blank cells- gross alptia concsntration below laboratory detection limit |>1.0 pCi/L). Therefore, no counting variance reported. S £" o :;a - * ^ o i n 3 1 a c o i G o c ui t • .• i UJ ? 1 c I s - 0 § r^^ o e « IU o 1 c n Z "D f< E u s 5 3 3 11 s 1 S a si ! •a = c •E a a i c = a a S a c 3 a. c 1- ffi a •c 1- •D S D a ii 5 a n a Q i a z s o. is o s E a o 1 M .a c i 1 a. i i z o T O ss O V 9? Ifi o ii 1 s a s 8 S £ g d 9 -• V a o T T S 1^7? ^ ssssss d d o doo 9| O'OQOO OOOOO OO ou>ooo ooooo oc ^loddddddoo oo fod'Jv V .-^'"oVv'JTd^oVv qSa"2oa'=!«S=.oqogg°„o SSSgSSSSsSSSgSggSSS do^doo Td._-od'7 oddd^^dd 1 , 1 •9 lo t? '^ A o o * ID r^ r^ ^ -. « s O VVV V a,r^sgalss«°g3S^iRo§ s ^ 5 r- o .r "4 d c d c 9 + IC 0 d 0 0 + in "+• d 0 0 0 0 + p rN If) i d 0 1 u 0 > : 1 oooo«Jooo 00 OQOO 00 ooooo oooo Q Ct 0000c odod 00 t^ ^ d d c: ooo^ 00 ooooo Vv^vvvvv^vv OOQO 00 ooooo «..:<S..: T^ .r^ .r^ .T^ C.1 T^ ,-vvvv vv vvVvv oooo 00 oQSOQ 00^0 00 0000c dddd dd riS Q d 0 t£ OOQO 00 ooooo ^vvvvvvv-^ivv OOQO pp ppooo wVvV vv VVvVv" o^oppppo oc o^o^^^^^ 00 oO 0 O.-ol-too 00 vvvv's,5i::3v^vv i' 11 oooooooo 00 oOooooc^o 00 Sini<) ss i/>S:f §i tJ ^ flill £^ i 4Cmnuu uo zi-i-x e J S gS s s 9 d 9 10 0 in 00 !-• 0 « 3 ^ ft ">m f- ° S dS 5; =^ IP g 0 2 " Q C 12 d" fJ V r^ 0 V t^ 1 filil 1 = C D P .3 i 5 d*?dioiri«>^.- '^SS":: SSS m ^ Q ^ ^- rj r^ dr-'.-;»^t7t^(>iM 0(0. ;0 inn^ V^5=gK^S ! 1 i.. o in in m • 1* T 1 [O 0 uffiiAcao l-l- 1 • m i 1 t [ 1 i 1 ^ ! i ^ i 1 1 a 0 i 0 z 0 1 T 1 E 2 1 B z .u E ^5 ^ 1! • s 1 fl ll il li * -So llli : i 1 0 t ! 1 I ^ ! 1 ji ilii APPENDIX 2 Monitor Well Concentration Tables for: MW-1, MW-2, MW-3, MW-3A, MW-5, MW-11, MW-12, MW-14, MW-15, MW-17, MW-18, MW-19, MW-20, and MW-22 through MW-32 MW-1 Contaminant Nutnents (mq/'L) Ammonia (as N) Nitrate-.- Nitrite (as N) Heavy Metals <JJU/U Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Moiyt)denum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radioloqics (pCi/L) Gross Alpfia VOC t^fl/L) Acetone Benzene 2-Butanone (MEK) Cartxjn Tetractiloride Chloroform Cniofomethane Dichloromethane Naphtiialene Tetrariydroturan ITHF) Toluene Xvlenes(iotall Others Field pH(S.U.) Fluoride (mg/i) Chloride (mg/I) Sulfate (mo/lj TDS (mo/I) GWQS GWCL (Class II) 1 '•"isl qtr. 2008 Jan - March 3/19/2008 2nd qtr. 2008 April - June 6/4/2008 3rd qtr. 2008 July • Sept. B/12/2006 4th qtr. 2008 Oct. - Dec. 11/4/2008 '"'ist qtr. 2009 Jan - March 2/11/2009 Parameters Listed in Table 2 1 1 25 10 6.25 2.5 0.09 0.'12 <0.1 0.18 1 50 4 5 100 730 1,300 11,000 15 800 2 40 100 50 100 2 17,000 30 60 5.000 12.5 1 1.25 25 1B2.5 325 2.750 3.75 200 0.5 10 25 12.5 25 0.5 4.250 7.5 15 1.250 10 <5.0 <0.50 __i ^0.50 <25 <10 <10- 88 <1.0 66 <0.50 <10 <:20 <5.0 <10 <0.50 <100 1.08 <15 <10 70 <5.0 <0.50 <0.50 <25 <10 <10 85 <1.0 66 <0.50 <10 <20 <5.0 <10 <0.50 <100 0.49 <15 <10 83 15 1 3.75 1 1 *1.2 (-^/-0.41 1 1 '0.4 (-^/-0.7) j 700 5 4,000 5 70 30 5 100 46 1.000 10.000 175 1.25 1,000 1.25 17.5 7.5 1.25 25 11.5 250 2,500 <2.0 <20 <1.0 <20 <1.0 <1.0 <1.0 ^1.0 ^1.0 2.6 <1.0 <1.0 3.2 <20 <1.Q •:20 <1.Q <1.0 <1.0 ^1.0 <1.0 <2.0 <1.0 <1.0 6.4 1 6.5 - 8.5 4 1 7.48 0.3 15 726 1,220 7.49 0.3 12 719 1.300 General Inorganics Listed in Part I.E.1.(c)(2)(iO 1 Carbonate (mg/l) Bicartwnate (mfl/l) Sodium (mo'lj Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (met^'L) Total cations (meq/L) <1.0 286 174 6.92 59.5 164 20.3 20.8 <1.0 297 176 6.89 60.7 169 20.2 21.3 Note: Concenlralions in txild exceed the GWQS Concentrations stiaded in yeiiow exceeo tne GWCL (a) - Quanerty acceleraied moniionng event * Ttie gioas alpna couniing variance exceeded 20^i hJox^impled ourino 2ndd^^w (June) 20Q7.\Th>s wwt ftas aarnpied in""July 2CH)7 iiilen ot^hydrogoolopc shjdy'pertdrrTiodbvtheJJniwera b( Utafi. Tliis sturdy j;equiredundisturt3ed'«terin ttiis «^^ 'i _ ".'•••'• "SE^L^BJ'•:".- "^"v-i:^ MW-2 Contaminant Nutiienls(mij\.) Animonia (as Nl Nl1^a1e-^ Nitrite las Nl Heavv Metals l/iot) Arsenic Bervllium Cadmium Ciiromium Cobalt ICoDper llron l^ad JMaiiqanese fctercwfv Molybdenum Nickel Sefeniuiu Sliver Irtiaiiiurn Tin lUianium Vanadium Zmc Radioloqics IpCi/L) Gioas Alpha VOC \uq/l\ Acetone Benzene 2-Butanone IMEK) Carbon Teirachioride CNoroionn Chioromeihane Dchioromeihane Naphthaicine 1T el ran vd roiu ran (THF) iToiuene X ylene SI total 1 Oltiers Field pH IS 0 1 FiuoriOe |rn()/l| CNofide Imq/i) Sulfate |mq/i| TDS (mevD Geneiai Carbonate (mc^'i) Bicarbonate Imq/ij Sodium (mcyl) Potassium t.ma/\) Maqnesium (mcyi) Calcium (miyi) Total anions (mec^L) JTotal cahons (rtiectL) Noie GWQS 25 10 GWCL (Class iii) 12.5 5 MW-2 (Semi-Annual Monitorinql 2nd qtr. 2005 April - June £.'21/2005 4tn qlr. 2005 OcTi - Dec. 12/14-2005 2nd qtr. 2006 April • June 6/20/2006 4lh qtr. 2006 Oct. - Dec. 10/24/2006 2nd qlr. 2007 April - June 4ttiqtr 2007 Oct. - Dec. 1(V2a'2007 Parameters Lisled in Table 2 *0.05 <01 o.oe <:01 0-iz 0.1 <0 05 -rO.1 . - — ™" • • -:" """ ^il—J?"- " <0 05 <0.1 2ivJ qtr. 2008 April - June 6/4/200S <0.05 ^0 1 4tti qtr. 2008 Oct . Doc 11/12/2006 ^0.05 ^0.05 1 50 4 5 100 730 1 300 11.000 15 eoo 2 JO 100 50 100 2 17.000 30 60 5.000 25 2 3 50 365 650 5.500 8 400 1 20 50 25 50 1 8.500 15 30 2,500 <5.0 -•0.50 •e0 50 <:25 ^10 .:10 .-30 cl.O ^10 <0 50 •fio <20 7 -:10 •tO.50 6.25 <15 12 <:5.0 <0.50 <0.50 <25 <10 <1D •;30 <^.0 <10 •:P50 <10 <20 18.5 <10 <0.50 13 9 <15 <^0 <5 0 <0.50 0 85 <25 <10 <:10 '.•30 .:1.0 <10 <0 50 <10 <20 7.7 <10 <0.50 <:100 12 <15 n <5.0 -:0.50 -:0.50 <25 <10 <10 <30 <1.0 <10 =0 50 <10 <20 143 <10 cOSO .-100 122 <:15 <10 -i "" ~: -| =: =: . ~_ ^ . .i=: "-™:= -.- • "' '• -i^^ --— -=. . : --™^,, - - .1 <5.0 <;0.50 <0.50 <25 <10 <.^0 <30 •r.-i.O <^o •(0.50 <w <20 81 <:10 <0.50 <10D 103 <15 14 ^5.0 <0 50 •cO.50 <25 <10 <10 <30 .=1.0 <1D <0 50 <10 <20 <5.0 <10 <0 50 clOO 8 68 <:5 <10 <5.0 •cOSO <0 50 <25 <10 •^10 •(3D <1.0 <^D -fO.50 .^w <20 95 <:o icO.50 ilOO 8.32 •t15 <10 1 15 7.5 <^o 1 <io 1 <i.o •1.7I+/-0.7) 1"^ *"- 1 ••t.3(i/-05) •1 4{t/-0.41 '0.91+/-0.41 1 1 700 5 4,000 5 70 30 5 too •16 l.OOD 10.000 350 25 2.000 25 35 15 25 50 23 500 5.000 <20 <1 0 <20 <1.0 <1 0 3.5 ll 0 <].0 <^ 0 <.\.o <1.0 <20 <1.0 <20 <1 0 <^ 0 <1.0 <1 0 <1.0 <:1.0 <1.0 <^.o <30 <1 0 <20 <1 0 -rl 0 •cl.O ..•1.0 . <1.0 <1 0 <^.o <^.0 <20 <1 0 <20 <1 0 <1.0 2.1 <1.D -fl.O <^0 <1.0 <1.0 £321™.• .•••I-'-- "~= ~-= .J"~"" ==^ .-JaZ.: -=. x:,z„„;„„„;: _^ "• i==„- . - - „=,=„- J-^~ t"s~. :£^ ••••=i t= ,.,:•" <20 <).0 .:20 .;1.0 <^ 0 <1.0 .:1.0 <^ 0 <1.0 •il.O <:1 0 <20 <10 <20 <1 0 ^1.0 .^•1.0 <1.0 •cl 0 <2.0 ..t 0 <1.0 <20 •tfl 0 <20 -fl.O <1.0 .:1 0 <1.0 <1.0 <2 0 <1 0 <1.0 1 65-8.5 4 norqanics L 2 sted in Par 7.42 0.4 7 1850 3060 7.99 0.3 6 1920 3100 764 0.3 7 1.880 3 060 l.E.1.(c|(2Kii) <^.o 373 473 97 84.7 313 44.8 43.4 <1.0 J09 483 10 92.5 329 46.8 45.3 <^.o 383 470 11 4 99 315 45.6 44.6 7.17 02 B 1,970 3.550 -_T - • • : „ v . . r "--• — ,._. : ,: „-—— - 7 41 03 6 1,990 3.100 <1.0 294 487 11.5 103 356 46.1 47.7 ~'.'. "-1 ™ SH IS v. 1.0 396 460 10.5 100 33? 48.1 45 3 7.32 03 7 2.000 3.030 <r1 0 373 530 102 95 326 48 47.4 7.38 0.3 6 2.020 3.140 <T0 362 550 10.6 96 4 346 48.2 49.4 • Tjie U'oM aiiina ccwnunu va'iance e«eeiJed 20*t Noi Samued ouriou 2ndQijanar IJunai 2»7^Vrhi9Mll <nu Mcnood In Jjy lequiied uidaturCM waicr in UIB nellfoi al leas! 2 nuntns pncx b sairp^ing 2W7aBpaft^ofsi^ttrOroo9d6^ SluOyperlonii6c1 djilOaUnwirartyolJJalv; f^W-3 Conlaminant NLirienls (tnc^LI Ammonw las N) Nhrale i Nilrl<! '»s Nl Heavy Meials (wJL) Arsenic Bcrv'iiJm Cadmiurn Chromium CoDait Copper iron Lead Uanqanesp Mercurv VolyDdenum Nickel Seienum Sliver Thali'Um Tl" Uranium (/Hnadijm Zmc Radioioqics IDC'LI Sn^ss AJpnn VOC IL<:".) Acetone Ben/ene 2-Buianone (MEK^ |Can)on TetrachlonOfi IChiorLj'orm Chloromethane DictiioromPttiane Naphttialene Telrahvdroluran (THFI Tnluene yylenesiioial) Oi"er& F«ia pHlS U J Fluoride imuil Chloride Imtyii Sulfate imo'ii TD5 imai) enerfli moraanics Liirer Carbonale impyil Bicarbonaieimijii Soclium (mofl) P-ulassium (moiTi Maqnesium (mo/i) Calciiim (mcvl) Total anions (mecvLi Tot^icarions ('nea^L'i Hw[t GWQS 25 10 GWCL (Class Hi) ii:.5 5 "isiutr. 2007 Jan March 2(16.2007 2nd qir. 2007 April June •"3rd qir. 2007 July Sepi. 6/29.'2007 Parameters Listeo in Taola 2 f-r <"- - "il .~=^ . = •Iiti qir 2007 Oct -Dec 10-'31/2007 0.0/ 01 '"1st qtr. 2006 Jan - March 3/13*2006 3nclqlr 2006 Aoril-June 5-Va/2006 <0 05 0.18 ••'3rd qir. 2008 July • Sept. 6/12/2008 4lh qtr 200B Oct - Dec. <0^ •:0.23 '"1st qtr 2009 Jan ^rcn Z^B/2m9 1 f.D 4 E. ICO 730 1.300 11.TOO '5 800 2 10 100 50 100 2 17,000 30 EO 5 000 2S 2 25 fiO 365 650 5 500 7S 400 1 20 • 50 25 SD 1 B.500 15 30 2,500 ==MUi - = =^=^201.2^- 0 99 =~ 302--::^= —„ -.=^~-. r. ..--^..i T^- i. - -S;"-^ •-.- _'-rr •'. - ---' ^ •:! •,:- • . -_—. ™___- -," "-ii - . „-. rc-;.;.-.; I-- ' ,-ji- -'.- . -1.- .*~';j,.J . •sris-.-v-^ix »:»^^=^=.-. =~~~:"=^=^=~™ =^s^^=-= l==i=Fi=-S 199 -.-% 33 6 ™~~"' ,"-=siLri9 -IT =•~^^^ 7 4 -.5 0 .:0.50 0.98 <Z5 •;JC vIO c30 <] 0 ~.=it-t50 . <0 50 <10 ?1 B.9 <10 : =r.^z -.i <100 : H=3S.4-.---., .•15 13 ==Tj3(i-r: 136 0.9 '^^^^5.6 <5 0 .0 50 0 52 .•25 cio •^•10 .;30 <^ 0 :^:7^»)Ci^':: .10 50 <10 t20 - —201=*=^ <10 0 86 <100 -^=31.3 = <15 19 .50 <0 50 0.73 <25 .rlO <^0 .-30 .1 0 '- -•SML'-^^S" '0.50 .10 .20 •^ 19.2 ^ . .10 0 85 .^100 - 28.5 .•15 21 <5 0 (0.50 0 55 .•i;5 <10 .-10 .46 .rlO : _8i3_-4=_- <0 50 •rio <20 • -: 26.5=--^ •clO 0 93 .100 - 23 8-5rr^ <15 37 =*=^^*M-- - 20.7-- 089 Z'JC^Tll • 1 15 7.5 1-- -- 1 . '1.0 •1 1|,.01, _ • 0.1 (--o.ei 1 1 700 5 •5.000 5 70 30 5 100 16 1,000 10 000 350 2.5 2 000 25 35 15 2.5 50 23 500 5.000 -;20 <1.0 -.20 ..1 0 <1.0 tl 0 .•1 0 *1 0 11 <\ a •(1 0 * = = = = .z.- -..= ~: . . .,', -~z -- <20 <10 <20 •^10 .•10 tl C <1 0 .(10 <10 •^10 .•1.0 <-J0 <1.0 -.20 .:I.O cl.O <].0 .:1.0 .•1 0 <10 ^1 0 <1 0 65 -.-20 -:1.0 ^20 <] 0 (1 D <1.0 TI.O ^•1 D <2.0 •:1 n (1 0 •(2 0 <2a <^.Q .20 <1 0 <^ 0 .1 0 <1.0 .1 0 .2 0 <1.0 <1 0 35 1 6.5 - 8.5 A •n Part ( 2 E 1.{C)I2); z^— .j^- .- ., ^- * -•3 •—.-.- -r - -; ;- ™ ™-= 1 -.-_~™=:^ . ™ - „ ™, . ",•", •Mf-^v-^ ••;- • "="S: S '.C=2 • '• ."S =• 6.95 04 63 3.120 5.150 •(1 0 516 ao^i 23.3 246 •182 75 3 ao 6 71 06 6^ 3,340 J.800 <1 0 364 &46 22 2 247 49B 77.3 82 6.97 06 59 3.340 5.220 .•1.0 311 836 23 249 4B4 76 4 a<6 COFVenTKICM \t DCU y>:auJ ilu GVtOS C^i^anrniDrainAaddiuiKliha C.W.L In} = '^Bin^flCCRIf^ralH rr^riV.nng tv4nr r4cit StrvlKl <MVi(^ Cu|ite (JLJK) KU7 ' Tha v,*l HU ^^^ Q* Ulah .PnaixtjiraqundLriMiniwl'inlai mItipaglllor'ai liBMPnBrtlii'fmrrosKTpiii] i^L"^ - ="•:"-•'_ MW-3A Cor-c^rrraiicn in [>:kJ djcuwa lis QWOf; Cui^iiiai'uti an»a«d «eB»d -bt r.WCt hkpi 3«Tpi«diiirv3re<QuaTlfr {.liri)i|2t)ti7iTr|ajiM4i ""iJtfWUlnil yui nmptujri Jiiy 3007 npdncf • htdntgaabgciiiftfparian-raiiDyih wih lor Bl IMM ZnmnnapnDricTiMTiJnq , MW-4 Contaminant Parameters Listed in Nutrients (mtj/L) Ammonia {as N) Nitrate-^ Nitrite (as N) Heavy Meials (ug/L) Arsenic Beryllium Gadmium Chromium Cobalt Copper Iron Load Manganese Mercury Molybdenum Nickel Selenium Silver ThaHrum Tin Uranium Vanadium Zinc Radiologics fpCi/L) Gross Alpha VOC (ug/L) Acetone Benzene 2-Butanone (MEK) Carbon Tetrachloride Chlorolorm Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xvlenes(tatal) Others Field pH (S.U.) Fluoride (mg/l) Chloride (mg/l) Sulfate (mo/1) TDS (mq/1) General Inorganics Liste Carbonate (mg/t) Bicartjonate (mg/)) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) GWQS Table 2 1 4th qtr. 2007 April - June 10/30/2007 2nd qtr. 2008 April - June 5/27/2008 4th qtr. 2008 Oct. - Dec. 11/3/2008 1 25 10 <0.05 6 <0.05 6.5 <0.05 6.54 1 50 4 5 100 730 1.300 11.000 15 800 2 40 100 50 100 2 17,000 30 60 5,000 <5.0 <0.S0 ^0.50 <25 ^10 <10 <:30 <1.0 ^10 <0.50 <10 <20 52.3 cio <0.50 <100 9.87 •c15 <10 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 46.4 ^10 <0.50 <100 9.1 <15 <10 •C5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 ^0.50 <10 <20 47.6 <10 ^0.50 <100 7.61 <15 <10 1 15 <1.0 "0.8 (-H/-0.3) -0.3 (-1-/-0 3) 1 1 700 5 4,000 5 70 30 5 100 46 1,000 10,000 <20 <1.0 <20 23 2,700 <1.0 •;T.O <1.0 <10 <1.0 <1.0 <20 <1.0 <20 1.9 2,500 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <20 <1.0 <20 <2.0 2,100 ^1.0 <1.0 ^1.0 <2.0 <1.0 <1.0 1 6.5-8.5 4 d m Pari 7.37 0.3 46 944 1,780 <1.0 356 89.8 7.4 125 273 27.2 26 7.2 0.4 44 832 1.550 <1.0 330 82.6 6.64 114 258 24.5 26 7.41 0.4 41 880 1,590 <1.0 339 87 • 7.1 119 270 25.5 27.3 Note. Concent's lions m ooid exceed lhe Concemrations sfiaded exceed ihe GWOS. GWCL. MW-5 Contaminant GWQS GWCL (Class II) 1 '•"1st qtr. 2008 Jan - March 3/18/2008 2nd qtr. 2008 April - June 6/18/2008 ^"Srd qtr 2008 July - Sept. 8/11/2008 4th qtr. 2008 Oct. - Dec. 11/3/2008 ••'1st qlr. 2009 Jan - March 2/4/2009 Parameters Listed in Table 2 1 Nutrients (mq/L) Ammonia las N) Nitrate -i- Nitrite (as N) Heavy Metals (ug/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Mangan&se Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radiologics (pCi/L) Gross Alpha VOC (ug/L) Acetone Benzene 2-Butanone (MEK) Carbon Tetrachloride Chloroform Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xylenes! total) Others Field pH (S.U.) Fluoride (mg/l) ' Chloride (mg/l) Sulfate (mg/\) TDS (mg/l) 1 25 10 6.25 2.5 0.51 <0.05 0.36 O.OB 1 50 4 5 100 730 1.300 11,000 15 600 2 40 100 50 too 2 17.000 30 60 5.000 12.5 1 1.25 25 182.5 325 2.750 3.75 200 0.5 10 25 12.5 25 0.5 4,250 7.5 15 1,250 -==203=- <5.0 <0.50 <0.50 •c25 <10 <10 84 .:1.0 ~=2bB€J~'-^ <0.50 <10 <20 <5.0 <10 <0.50 <100 <0.30 ^15 <10 s-™b"i298ri:"^: <5.0 <0.50 <0.50 <25 <10 <10 64 <1.0 fC" _i230=- - ' <0.50 <10 <20 <5.0 <10 <0.50 <100 <0.30 <15 <10 154 15 1 3.75 1 1 •1.2f-H,'-0.4) 1 1 *0.4(i./-0.3) | 700 5 4,000 5 70 30 5 100 46 1,000 10.000 175 • 1.25 1,000 1.25 17.5 7.5 1.25 25 11.5 250 2,500 9.2 <20 <1.0 <20 <1.0 <1.0 <1.0 .^1.0 <1.0 10 <1.0 <1.0 6.6 <20 ^1.0 <20 •cl.O <f.O <:.o <1.0 <1.0 8.5 <1.0 <1.0 4.2 I 6.5-8.5 4 1 >•• -,1;>-=:3i: 7.65 0.9 50 1,090 1.900 •===-= •) ~-==^ 7.78 ^r"==r^_^ir;- 47 1,170 1,980 ^^^-1-1-=^ General Inorganics Listed in Part I.E.1 .(c)(2)( [ Carbonate (mg/l) Bicartionale (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/t) Total anions (meq/L) Total cations (meq/L) Noie^ •cl.O 357 503 7.5 38 135 30 32 <1.0 368 521 7.7 39.2 143 31.9 33.2 Concentrations shaded ewieed the GWCL (a) a Quanerly acLceieraied rnonitonno even Not Sarnpliiid during 2nd Ouan8r(J^)^007 ^Thisl.wl^as'Mimpied in"Juty 2007% parfof a hydrog«)lo"pc'sludy parioiTnedbv IhSUnhiereityat Lhah"-This study requirod_urK|iatu>b«d water in tinisiwil for ai least 2 months pri ori o'"sampl ing. , "^3; - • •- ~T=E== =I^f°-5T^^^^^ -^ MW-11 Contaminant Nutrients (ma/L) Ammonia (as N) Nitrate -t- Nitrite (aa N) Heavy Metals (uq/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Sliver Thallium Tin Uranium Vanadium Zinc Radiologics (pCi/L) Gross Alpha VOC lUO/L) Acetone Benzene 2-Buianone (MEK) Carbon Tetrachloride Chloroform Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xylenes(\olal) Others Field pH (S.U.) Fluoride (mg/l) Chloride (mj^l) Sulfate (mg/l) TDS (tT^I) General Inorganics Uste CartX)nate(mQ/l) Bicarbonate (mg/|) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions {meq/Lj Total cations (meu/L) GWQS GWCL (Class II) 1 Ist qtr. 2007 Jan - March 3/15/2007 1st qtr. 2008 Jan - March 3/18/2008 Parameters Listed in Table 2 2nd qtr. 2008 April - June a'1fi.'2008 3rd qtr. 2008 July - Sept. 8/5/2008 4lh qtr. 2008 Oct. - Dec. 11/10/2008 1st qtr. 2009 Jan - March 2/16/2009 1 25 10 6.25 2.5 0.66 <0.1 0 59 <0.1 0.63 <0.05 0.6 0.05 0.54 <0.05 0.67 1 <0.05 1 1 50 4 5 100 730 1.300 11,000 15 BOO 2 40 100 50 100 2 17,000 30 60 5,000 12.5 1 1.25 25 182.5 325 2,750 3.75 200 0.5 10 25 12.5 25 0.5 4.250 7.5 15 1,250 <5.0 <0.50 <0.50 <25 <10 <10 30 <1.0 107 <0.50 <10 <20 <5.0 •cIO <0.50 <100 1.04 <15 <10 <5 0 <0.50 <0.50 <25 <10 <10 206 <1.0 70 <0.50 <10 <20 <5.0 --J0 <0.50 <100 <0.30 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 112 <1.0 74 <0.50 <10 <20 <5.0 <10 .;0.50 <100 <0.30 <15 <10 <5.0 <0.50 <0.50 <25 <10 ^10 99 <1.0 70 <0.50 <10 ^20 <5.0 <W <0.50 •clOO <0.30 •:15 <10 <5.0 <0.50 <0.50 <25 <10 <10 106 <1.0 73 <0.50 <10 <20 <5 0 <:10 <0.50 <100 <0.30 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 138 <1.0 73 <0.50 <10 <20 <5.0 <10 <0.50 <100 <0.30 <15 <10 1 15 3 75 <1.0 -0 9(./-0.3) *1.2(-H/-0.5) •1.0(-i-/-0.4) *0.1 (-1-/-0.3) •0.6 (-H/-0.4) 1 1 700 5 4,000 5 70 30 5 100 46 1,000 10,000 175 1.25 1,000 1.25 17.5 7.5 1.25 25 11.5 250 2,500 <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 ^20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <20 <1.0 ^20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <20 <1.0 <20 ^1.0 <:1.0 <1.0 <1.0 <1.0 <2.0 <^.o <1.0 <20 <).0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 N 6.5-a.s 4 <J in Part I.E 1 1.(.C)(2}(ii) 6.94 0.6 31 1,120 2.040 <1.0 375 571 7.6 22,1 69.2 30.4 30.4 7.91 0.6 29 1,040 1,750 3 380 606 6 10 38.1 28.9 29.3 7.87 0.5 30 1,050 1.790 <1.0 356 632 6.1 10.7 40.8 28.5 30.6 7.83 0.5 29 1,060 1,780 <1.0 380 631 6 10.5 40.6 29.1 30.5 7.95 0.6 30 1.100 1,830 9 351 655 6.2 11 42.4 29.8 31.7 7.92 0.6 29 977 1,910 7 356 581 6.33 12.4 44.4 27.2 28.7 (a} - Monmly accaiqrateo moniiorina evenl * The gross^aipha counting vanance enceaded 2Q"ii. Not Sannpled AJring 2nd Ouatie|(Jurio) 2007. TTiis well was^^iptedjn^y^OOTli pir^ ot a hydnDoeoiogic stuO^ perfo^Bd^ttiiL'SSltyl of^Uiafi. Ttvsstijaif mQwrndundis^rtxti WBter 1^ _ •/ ... -.^l^Z.Mr^.'^^====^'W'- MW-12 Contaminant GWQS GWCL (Class III) 1 •••'1 st qtr. 2008 Jan • March 3/18/2008 2nd qlr. 2008 April -June 6/17/2008 "'3rd qlr. 2008 July - Sept. 8/11/2008 4th qtr. 2008 Oct. - Dec. 11/11/2008 '"ist qtr. 2009 Jan - March 2/4/2009 Parameters Listed in Table 2 1 Nutrients (mq/L) Ammonia (as N) Nitrate-t Nitnte (as N) Heavy Metals (uq/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury MolytJdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radiologics (pCi/L) Gross Alpt^a VOC fuq/L) Acetone Benzene 2-Butanone (MEK) Carbon Tetrachloride Chloroform Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xvlenes(total) Others Field pH (S.U.) Fluoride (mg/ll Chloride (mg/l) Sulfate (mg/l) TDS (mg/|) 1 S5 10 12.5 5 <0.05 0.1 ^0.05 0.11 1 50 4 5 100 730 1,300 11 000 15 800 2 40 100 50 100 2 17,000 30 60 5.000 25 2 2.5 50 365 650 5.500 7.5 400 1 20 50 25 50 1 8,500 V5 30 2.500 29 16.8 • ~.^ <5.0 <0.50 <0 50 <25 <10 <10 <30 <1.0 32 <0.50 <10 <:20 7.9 <10 <0.50 <100 =^16.7.,-^! <15 <10 19 ^£=17.8-^--= <5.0 <0.50 ^0.50 <25 <^0 <10 35 <1.0 16 <0.50 <10 <20 lO.B <10 ^0.50 <100 ^-^16.9'_-.=57- <15 <10 17 -^ -=18K~?i 1 15 I 7.5 I 1 M.21+/-0.4) 1 1 *03(^/-0.3) i 1 700 5 4.000 5 70 30 5 100 46 1.000 10.000 350 2.5 2,000 2.5 35 15 2.5 50 23 500 5.000 <2.0 <20 <1.0 <20 <1.0 ^1.0 <^.Q ^1.0 <1.0 3 <1.0 <1.0 <2.0 <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 3.6 1 6.5-8.5 4 2 7.08 0.3 54 2.270 3,530 7.08 0.3 56 2,340 3,800 General Inorqanics Listed in Part 1 E ).(c)(2)f 1 Carbonate (mg/|) Bicarbonate (mg/l) Sodium (mg/l) jPotassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total amons (meq/L) Total cations (meq/L) Note^ <1.0 399 300 13 207 525 55.3 56.6 <1.0 430 30B 12.9 219 544 57.4 58.9 Concenlralions snadM ew:eed ihe GWCL (a) = Qualeriv acceleratea momionng event 1^01 Sarrriied dunng 2nd Quarter (June) 200?-;Tli is wel I, was sampl'ed in July UHit). This study required undisiurtiea water in lhis"wBll fcjr at least 2 rrxjntna 2007 "as pan ot A hydrogeolooic studyperformed by^ttieJJniwareily of .^=^->_ii- prior loearripiino>"^:^^^~j:, '^3 --^ MW-14 Contaminant GWQS Parameters Listed in Table 2 Nutrients (mg/L) Ammonia {as N) Nitrate -i- Nitrite (as N) Heavy Metals (utj/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radiologics (pCI/L) Gn3ss Alpha VOC (uq/L) Acetone Benzene 2-Butanone (MEK) Cartxjn Tetrachloride Chloroform Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xylenes(total) Others Field pH (S.U.) Fluoride (mq/1) Chloride (mg/l) Sulfate (mg/I) TDS (mq/1) GWCL (Class III) MW-14 {Quarterly Monitonng) 1 January "'Monthly AccI. 1/20/2009 1st qtr. 2009 Jan • March 2/4/2009 March '"Monthly AccI. 3/18/2009 1 25 10 12.5 5 <0.05 <0.1 1 1 50 4 5 100 730 1.300 11,000 15 800 2 40 100 50 100 2 17,000 30 60 5,000 25 2 2.5 50 365 650 5,500 7.5 400 1 20 50 25 50 1 8,500 15 30 2.500 -.-r.—2,060==^ ...j-r^6a.9 <5.0 <0.50 1.19 <25 <10 <10 <30 <1.0 ^2.190^ <0.50 <10 <zo 5 <10 <0.50 <100 F"- *60.5- '.'-=^ <15 51 =^2.150-^ m i57.4- -".: 1 15 7.5 1 1 '1.2 (-1-/-0.4) '1.3(+/-0.4) 1 1 700 5 4,000 5 70 30 5 100 46 1.000 10,000 350 2.5 2,000 2.5 35 15 2.5 50 23 500 5.000 <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 1 1 6.5-8.5 4 General Inorganics Listed in Part Carbonate (mfl/l) Bicartwnate (mg/l) Sodium (mg/i) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) 2 I.E.1 .(c)(2 6.86 0.2 16 2.150 3,670 ii) 1 <1.0 457 323 11 152 517 52.7 52.6 Noie Concenlralions in bold exceed ttie GWQS Concenlralions shaded exceed the GWCL (a) = Quarteriy accelerated mcnitonng event • The gross alpha counting variance exceeded 20% Not Sampled Ainng 2nd Quarter"(June) 2007.'-TTits well was'aampled in July 2007 as pan ol a hydrogeologic sbdy perforrned b^ the_ Uniyeraity ol Utah. This study reqijired undisturbed vrater^iivthis welt l<x at ieast^2morTlhs prior |o MW-15 Contaminant GWOS GWCL (Class III) 1 "'Ist qtr. 2008 Jan - March 3/11/2008 2nd qtr. 2008 April - June 6/18/2008 ""3rd qir. 2008 July - Sept. e/12/2008 4th qtr. 2008 Oct. - Dec. 11/11/2008 '•'ist qtr. 2009 Jan - March 2/9/2009 Parameters Listed in Table 2 Nutnents (mq/L) Ammonia (as N) Nitrate + Nitnte (as N) Heavy Meials (uq/L) Arsenic Berytlium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum . Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radiologics (pCi/L) Gross Alpha VOC (uR/L) Acetone BevzenB 2-ButanQne (MEK) Carbon Tetrachloride Chloroform Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xvlenes(total) Others Field pH (S.U.) Fluoride (mgl) Chloride (mg/\) Sulfate (mg/l) TDS (mg/l) General Inorganics bste Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg'i) Total anions (meq/L) Total cations (meq/L) 1 25 10 12.5 5 <0.05 0.15 <0.05 0.16 1 50 4 5 100 730 1,300 11.000 15 800 2 40 100 50 100 2 17,000 30 60 5.000 25 2 2.5 50 365 650 5,500 7.5 400 1 20 50 25 50 1 8,500 15 30 2.500 --•••^-•~-113=:-/ ^-;4«i3:i • <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 •^-i... 106 z----€••- <10 <0.50 <100 •-tl-"43.9--"-"^ <^5 <10 • -.ii8^m= : i;-.-45.7-:^^= <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <:0.50 <10 <20 =- 111 <10 .:0.50 <100 = y^--47j===. <15 <10 -_s- iio,m^':i -\45.7~^-r"-'^ 15 1 7.5 1 1 -1.1 (-H/-0.4) 1 1 '0.1 (-H/-0.31 1 700 5 4,000 5 70 30 5 100 46 1,000 10,000 350 2.5 2,000 2.5 35 15 2.5 50 23 500 5.000 <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <^.Q <20 <1.0 <20 <1.0 " <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 1 6 5-8.5 4 2 6.99 0.2 37 2,400 3.680 7.25 0.2 37 2,430 3.830 d in Part I.E.1.(c)(2)( •:1.0 415 520 10.4 158 444 57.9 58.1 <1.0 429 528 10.3 164 451 58.7 59.2 Note: Concenlralions in oold exceed the GWQS Con centra! inns shaded exceed the GWCL (a) = Ouartefiy accaieraiea monitonng event Not^SatTTpHBd dunng End Quarter (Jurw)2(»Z,T7ii5"wwi^ oi'Utah .Thissiudy required undistJTrtied water m'ihis well for rt least in'July 2007jia pert of a hydrogeologic study performed by Ifie University ,- f-... 2 monlhs priof'lo'sanpling.K - " ™ix:- . y. x '; MW-17 Contaminant Nutrients (mq/L) Ammonia (as N) Nitrate * Nitrite (as N) Heavy Metals (uq/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thaltium Tin Uranium Vanadium Zmc Radiologics (pCi/L) Gross Alpha VOC (ug/L) Acelone Benzene 2-Butaiioiie (MEK) Carbon Tetrachloride Chloroform Chloromethiane Dichioromeihane Naphthalene Tetrahydrofuran (THF) Toluene Xylenes(total) Others Field pH (S.U ) Fluoride (mg/l) Chloride (mg/l) Sulfate (mg/l) TDS (mg/l) General Inorganics Liste Carbonate (mg/i) Bicaibonale (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mj^l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) GWQS GWCL (Class III) "'Isl qtr. 2008 Jan - March 3/12/2008 2nd qtr 2008 April - June 5/2a'2008 "'3rd qlr. 2008 July - Sept. 8/12-'2008 4th qtr. 2008 Od. - Dec. 11/12/2008 "'l3t qtr. 2009 Jan - March 2/9/2009 Paramelers Listed in Table 2 25 10 12.5 5 50 4 5 100 730 1.300 11.000 15 800 2 40 100 50 100 2 17,000 30 60 5.000 25 2 2.5 50 365 650 5.500 7.5 400 1 20 50 25 50 1 B,500 15 30 2,500 <0.05 0.5 <0.05 0.7 1 <0.50 " : J 28.3 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 108 <0.50 <10 <20 7.8 <10 <0.50 <100 ^29.4 f^4 <15 <10 0.55 - 28.9 -^r-. <5.0 <0.5Q <0 50 <25 <10 <10 <30 <1.0 92 •eOSO <10 <20 7.9 <10 0.53 <100 : ^26' ••?• <15 <10 0.57 :k^-Z2B:7===\ 15 1 7.5 1 I '0.9(+/-0.3) 1 1 *0.5 (-H/-0.3) j 700 5 4,000 5 70 30 5 100 46 1,000 10.000 350 2.5 2,000 2.5 35 15 2.5 50 23 500 5.000 <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <20 <1.0 <20 <1.0 <1.0 <1.0 •c1 0 <1.0 <:2.0 <1.0 <:1.0 1 6.5 - B.5 4 2 7.29 0.3 32 2,540 4.030 7.10 0.3 32 2,530 3,980 din Pari I.E.1.(c)(2)( <1.0 474 648 12.4 188 386 61.6 63.2 <^.o 4B1 642 12.6 168 385 61.4 62.9 Note. Concentrations in bold enceea the GWQS Con cent rati on 9 shaced exceed the GWCL la) - Quarteriy accelerafed monitonng event " Tne gross alpha counting vanance eweeded 20*; MW-18 Contaminant GWQS GWCL (Class li) 1 •^'Ist qtr. 2008 Jan - March 3/11/2008 2nd qtr. 2008 April - June 6/4/2008 "•Srd qtr. 2008 July - Sept. a/12/2008 4th qtr. 2008 Oct. - Dec. 11/4/2008 '•"1st qtr. 2009 Jan - March 2/11/2009 Parameters Listed m Table 2 1 Nutrients (mq/L) Ammonia (as N) Nitrate -^ Nitrite (as N) Heavy Metals (ug/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radiologics (pCi/L) Gross Alpha VOC (ut^Ll Acetone Benzene 2-Butanone (MEK) Carbon Tetrachloride Chlorolorm Chloromethane DichlonDmethane Naphthalene Tetrahydrofuran (THF) Toluene Xvlenes(lotal) Others Field pH (S.U.) Fluoride (mg/|) Chloride (mg/l) Sulfate (mg/l) TDS (mg/l) 1 25 10 6.25 2.5 <0.05 <0.05 <0.1 c0.05 1 50 4 5 100 730 1,300 11,000 15 800 2 40 100 50 100 2 17,000 30 60 5.000 12.5 1 1.25 25 1B2.5 325 2.750 3.75 200 0.5 10 25 12.5 25 0.5 4.250 7.5 15 1.250 154 r=5=1.11 :. W, 42.4 -•. <5.0 c0 50 <0.50 <25 <10 <10 314 cl.O 119 •:0.50 <10 <20 <5.0 <10 • ^m:^.^=£ <100 '^=,44.8E^j=B, <15 <10 136 :;::::Ci;;:;s:sl <vJ.^ • •~:^4tI4? •- <5.0 <0.50 <0.50 <25 <10 <10 310 <1.0 125 <0.50 <10 <20 <5.0 <10 ""^T""- •^^l ^P?HJ^;;S333^ <100 :-^'^4i^=== <15 <^o 121 =^S4V:53:.-:J ^=fi39.4': .• 15 1 3.75 1 1 '1.2 ( + /-0.41 1 1 •0.4(-/-0.7) 1 700 5 4,000 5 70 30 5 100 46 1.000 10,000 175 1.25 1,000 1.25 17.5 7.5 1.25 25 11.5 250 2,500 <20 <1.0 <20 <1.0 <10 <1.0 <1.0 <1.0 <2.0 <1.0 cl.O <20 cl.O <20 cl.O <1.0 cl.O <1.0 cl.O <2.0 cl.O <1.0 1 6.5-8.5 4 1 7.05 0.2 55 1,870 3,100 6.90 0.2 42 1,860 3,110 General Inorganics Listed in Part I.E.1.(c)(2){ 1 Carbonate (mg/l) Bicartionate (mg/l) Sodium (mg/l) Potassium (mg/i) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) <1.0 423 193 9.6 126 546 47.5 46.2 <1.0 436 197 9.47 132 578 47.4 48.6 Note^ Cone en fail on a in bold e:iceea tne GWOS Concentrations shaded etteed the GWCL (a) - Quarteriy acceleraied moniionng event ' The gross alpha couniing variance ewreeaed 20-'i _ _ Not Samcied liunngJnd, Qu ain er (June) 2007. i'ThiS tCell was sa^^ olUtah' Thissludy requirodundistiirbeOiTOterlnlhisweiltorat leasiJnwtns'prigrtosan^ing.li^H^ • _-'- _ •_"" "..'-Z'-'S 'J^z-'^^^^iE MW-19 Contaminant GWQS GWCL (Class 11} 1 '"1st qtr. 2008 Jan - March 3/11/200B 2nd qtr. 2008 April - June 6/4/2008 '•'3rd qtr. 2008 July • Sept. a/13/2008 4th Qtr. 2008 Oct. - Dec. 11/4/2008 '•••'Ist qtr. 2009 Jan - March 2/11/2009 Parameters Listed In Table 2 | Nutriems (irig/L) Ammonia (as N) Nitrate-H Nitrite fas N) Heavy Metals (ug/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manqflnese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radiologics (pCL/L) Gnsss Alpha VOC (ug/L) Acetone Benzene 2-ButanDnB (MEK) Carbon Tetrachloride Chlorolorm Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xvlenes(total) Others Field pH (S.U.) Fluoride (mg/l) Chlonde (mg/l) Sulfate (mg/l) TDS (mg/l) 1 25 10 6.25 2.5 <0.05 2.44 <0.^ .^=z- 2.51 . r • 2.4 1 50 • 4 5 100 730 1,300 11.000 15 BOO 2 40 100 50 too 2 17,000 30 60 5.000 12.5 1 1.25 25 182.5 325 2,750 3.75 200 0.5 10 25 12.5 25 0.5 4.250 7.5 • 15 1.250 106 =-="0:52 = =' 7.32 <5.0 <0.50 <0.50 <?5 <10 <10 <30 <1.0 cio <0.50 <10 <20 10.2 cio <0.50 <100 6 76 <15 clO 136 9.2 <0.50 6.8 <5.0 <0.50 <0.50 c25 <10 cio <30 cl.O <10 c0.50 <10 <20 9.9 <10 <0.50 <100 6.51 <15 <10 9.6 •cO.50 6.52 15 1 3.75 1 1 '1.3(+/-0.4) 1 1 '0.3 (-H/-0.6) j 700 5 4,000 5 70 30 5 100 46 1,000 10.000 175 1.25 1,000 1.25 17.5 7.5 1.25 25 11.5 250 2,500 <20 <1.0 <20 <1.0 cl.O <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <20 <1.0 c20 <1.0 ^1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1 0 1 6.5 - a.5 4 1 —^^s-]: ^STTcr^ 7.63 ^^T"I.I- •T.--». 28 507 977 -=£= -- l.-li.'^^s 7.38 ^^E:^.1:5S^ 26 446 954 =^":~- 1 .1 -===„. General Inorganics Listed in Part I.E.1.(c)(2). 1 Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg't) Maqnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) <1.0 257 113 4.32 46.2 140 15.8 15.8 <1.0 265 110 4.42 44.6 139 14.6 15.5 Nota^ Conceniiations shaoed exceed the GWCL (a) - Quarteriy accelerated rnonifonng event Ncnjampled during 2nd^uaiiei^(Ju^)^2C^ wli was Mmpledin^July 2007 as part ot a nydrooeol^^^stixty perfomed by'lfiaUriivei»ity^^^=^ o1JJiatirj]Tia study requii^ -•> ' rsl^^^^^^^^^^#"~ ."'•—" ""' .T'S^: MW-20 Contaminani GWOS GWCL (Class II) MW-20 (Quarterly Monitoring) 1st qtr. 2008 Jan - March Parameters Listed in Table 2 2nd qtr. 2008 April - June 6/17/2008 3rd qtr. 2008 July - Sept. 8/11/2008 4th qtr. 2008 Oct. - Dec. 11/12/2008 Ist qtr. 2009 Jan - March 2/2/2009 Nutrients (mg^L) Ammonia (as N) 25 Nitrate -H Nitrite (as N) 10 6.25 2.5 3 0.69 2.52 0.5 4.16 0.13 5.26 0.23 4,9 Heavy Metals (ug/L) Arsenic 50 12.5 <5.0 <5.0 ^5,0 <5,0 Beryllium <0.50 <0.50 cO.50 Cadmium 1.25 <0.50 <0.50 1.05 <0.50 1.05 Chromium 100 25 <25 <25 <25 <25 Cobalt 730 132.5 <10 <10 <10 <10 Copper 1,300 325 <10 <10 <w <^o 11.000 2,750 <50 .<50 .;50 38 Lead 15 3.75 <1.0 <1.0 <1.0 <1.0 Manganese 800 200 77 60 29 38 Mercury 0.5 <0.50 <0.50 <0.50 <0.50 Molybdenum 40 10 <10 11 11 Nickel 100 25 <20 <20 ^20 Selenium 50 12.5 <5.0 <5.0 ^5.0 <10 <20 <5.0 Silver 100 25 <10 <10 <10 Thallium 0.5 ,0,54-:^ <0.50 L1.14. Tin 17,000 4.250 clOO <100 <10 <o;5o^ <ioo Uranium 30 7.5 34.6i -^ 29.8? 119: Vanadium 60 15 <15 <15 <^5 Zinc 5,000 1,250 41 90 52 17.9 <15 75 Radiologics (pCi/L) 3.75 |- --S^^SSgJ: I •2.1 (->-/-0.5) | •^.Zl-^•/-Q.5) I '0.4 (-I-/-D.3) I '1.4 (-I-/-0.4) Gross Alpha 15 VOC (ug/L) Acetone 700 Benzene 2-Butanone (MEK) 4.000 Carbon Tetrachloride 175 1.25 1,000 1.25 <20 <1.0 <20 <1.0 <20 <1.0 <20 <1.0 ^20 <1.0 <:20 <1,0 c20 <1.0 <20 <1.0 Chloroform 70 17.5 <1.0 <1.0 :1.0 <1.0 Chloromethane 30 7.5 <1.0 <1.0 <1.0 Dichloromethane 1.25 <1.0 <1.0 <1.0 <1.0 <1,0 Naphthalene 100 25 <1.0 <1.0 :1.0 Tetrahydrofuran (THF) 46 11.5 <2.0 <2.0 <2.0 Toluene 1,000 250 <1.0 <1.0 <:1.0 Xylene5(tQtal) 10.000 2.500 <1.0 <1.0 :1.0 Others Field pH (S.U.) 5.5 - 8.5 -,:*•] 7.35 7.37 7.65 <1.0 <2.0 <1.0 <1.0 7.58 Fluoride (mg/l) 0.2 0.2 0.3 0.3 Chloride (mg/|) 67 57 64 59 Sulfate (mg^) 3.880 3.910 3.720 3,600 TDS (mg/l) 5.570 5.650 5,690 5,780 General Inorganics Listed in Part E.1^(c)(2)(ii) Carbonate (mg/l) <1.0 <1.0 <1.0 <;1.0 Bicarbonate (mq/1) 384 386 317 Sodium (mg/l) 1,460 1.430 1.420 287 1,200 Potassium (mg/l) 61.9 50.3 53.7 44.8 Magnesium (mg/l) 108 110 103 Calcium (mg/l) 395 388 374 Total anions (meq/L) 89.1 89.7 89.9 103 361 81.7 Total cations (meq/L) 94.4 91.8 90.3 79.7 Note: Concentrations in bold exceed the GWQS. ___ Concentrations shaded exceed the GWCL. tldt S^^etf^duHlxF MW-22 Contaminant GWQS GWCL (Class III) MW-22 (Quarterly Monitoring) 1st qtr. 2008 Jan - March 2nd qtr. 2008 April - June 6/17/2008 3rd qtr. 2008 July - Sept. e/11/2008 4th qtr. 2008 Oct. - Dec. 11/12/2008 Parameters Listed In Table 2 1st qtr. 2009 Jan - March 2/2/2009 Nutrients (mg^L) Ammonia (as N) 25 12.5 ^. 0.36 0.2 0.19 0.62 Nitrate -i- Nitrite (as N) 10 3.50 3.83 3.91 3.6 Heavy fvletals (ug/L) Arsenic 50 25 =r^ <5.0 <5.0 <5.0 <5.0 Beryllium '--2:27:-*2.69- -^^ --•,-2.5 m7 Cadmium 2.5 ==m.B_-^ 94.6 Chromium 100 50 <25 <25 <25 <25 Cobalt 730 365 Copper 1,300 650 S? . 266 264 312 14 <10 11 Iron 11.000 5,500 <50 <50 34 Lead 15 7.5 <1.0 :1.0 <1.0 Manganese 800 400 31}100« •^32,500; 132,500 Mercury Molybdenum 40 20 Nickel 100 50 <0.50 <0.50 <0.50 -^t.'<188 '^ 233 h ~432 -'^-'118 ^^-¥135' fr-740i 293 19 <30 1.2 33,300 c0.50 Selenium 50 25 13.2 9.8 11.9 12.6 Silver 100 50 <10 <10 <10 <10 Thallium -•^fS^ m\04r=L ^1^231 =1.02^J Tin 17.000 8,500 <100 <100 <100 <too Uranium 30 15 : 52.4= 46J= i48.8l 49.7- Vanadium 60 30 <15 <15 <15 <15 Zinc 5,000 2,500 458 524 538 591 Radiologics (pCi/L) Gross Alpha 15 7.5 • I 5.4 (-H/-O.B) I '3.1 (-H/-0.7) I '2.9 (-f-/-0.6) I 5.5(-H/-0.7) VOC (ug/L) Acetone 700 350 <20 <20 <20 <20 Benzene 2.5 <1.0 <1.0 <;1.0 2-Butanone (MEK) 4,000 2.000 <20 <20 • <20 <1.0 <20 Carbon Tetrachloride 2.5 Chloroform 70 35 Chloromethane 30 15 Dichloromethane 2.5 Naphthalene 100 50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MBK-T^^-r^ <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Tetrahydrofuran (THF) 46 23 <2.0 <2.0 <2.0 <2.0 Toluene 1,000 500 <1.0 <1.0 <1.0 <1,0 Xylenes(total) 10.000 5,000 <1.0 <1.0 <1.0 cl.O Others Field pH (S.U.) 6.5-8,5 6.2 I6^6z 1&2, Fluoride (mg/l) .-•^'!vr2.8 -i^ -soroi^'^ "2.9^--: Chloride (mg/|) 64 48 64 54 Sulfate (mg/l) 5.130 5,870 5.520 5.240 TDS (mq/1) 7,110 7.620 7,900 7,920 General Inorganics Listed in Part I.E.1.(c)(2 WL Carbonate (mg/l) Bicarbonate (mg/|) <1.0 436 <1.0 489 <1.0 482 <1.0 467 Sodium (mg/l) 260 259 262 233 Potassium (mg/l) 26.2 24.9 25 22.2 Magnesium (mg/l) 975 1.080 1,050 965 Calcium (mg/l) ^S^ I 483 499 484 418 Total anions (meq/L) 116 132 125 119 Total cations (meq/L) 116 126 123 111 Note: Concentrations in bold exceed the GV^QS £oncentraiions shaded exceed the GWCL iNot'Sarfjiled duriiffiffiB^SFOua rii^>yef^"aC^a£tiMBd MW-23 ' Contaminant GWQS GWCL TBA • ^ 1 Isl qtr. 2008 Jan • March 3/18/2008 2nd qtr. 2008 April - June 6/9/2008 3rd qtr. 2006 July - Sepl 8/S'2008 4th qtr. 200B Oct. - Dec. 11/&'2008 1 st qtr. 2009 Jan • March 2/11/2009 Parameters Listed in Table 2 1 Nutrients (mq/L) Ammonia (as N) Nitrate 4 Nitrite (as N) Heavy Metals (uq/L) Arsenic Beryllium Cadmium Chromium ' Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radioioqics (pCi/L) Gross Alpha VOC (ug/L) Acetone Benzene 2-Biitanone (MEK) Carbon Tetrachloride Chloroform Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xylenea(total) Others Field pH (S.U.) Fluoride (mg/l) ' Chloride (mg/l) Sullate (mg/l) TDS (mg/l) General Inorganics Li&lc Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) ' Magnesium (mg/l) Calcium (mg/l) Tolal anions (meq/L) Total cations (meq/L) 1 25 10 <0.05 03 0.16 0.2 cO 1 027 0.09 03 c0.05 1 0.3 1 1 50 4 5 100 730 1.300 11.000 15 BOO 2 40 100 50 100 2 17,000 30 60 5,000 <5.0 <0.50 <0.50 c25 <10 <10 <30 <1.0 372 <0.50 <10 29 <5.0 <10 1.27 <100 21.2 <15 33 <5.0 c0.50 <0.50 <25 <10 <10 <30 cl.O 2B9 <0.50 <10 29 <5.0 <10 1.06 clOO 186 <15 29 <5.0 <0.50 c0.50 <25 <10 <10 <30 <1.0 188 <0.50 <10 <20 <5.0 <10 0.82 <100 14.6 <15 26 <5.0 <0.50 .10.50 <25 <10 cio <30 cl 0 453 ^0.50 <10 23 <5.0 <10 1.40 ClOO 1B.1 <15 38 c5.0 <0.50 c0.50 <25 <10 <W <30 <1.0 526 <0.50 <10 22 c5.0 <10 <100 19.4 <15 50 1 15 1 1 2.6(0.5-1-/-) *1.9{-^/-0.5) -2.5 (-f/-0 5) '1.1 (-1-/-0.7) '3.8(+/-0.81 1 1 700 5 4,000 5 70 30 5 100 46 1,000 10,000 6.5 - 6.5 4 <20 cl.O <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <20 <1.0 c20 <1.0 <1.0 <1.0 <1.0 <1.0 c2.0 <1.0 cl.O <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 cl.O <1.0 <20 cl.O <20 <1.0 <1.0 cl.O <1.0 <1.0 <2.0 <1.0 cl.O <20 <1.0 <20 <1.0 <1.0 <1.0 <1 0 <1.0 <2.0 <1.0 <1.0 1 7.49 0.2 7 2.410 3.550 d in Part I.E.1 .(c)(; cl.O 275 384 10.9 146 444 55 51.2 7.05 0.2 6 2, IBO 3,540 cl.O 306 400 10.4 159 494 6.80 0.2 6 2.270 3.640 <^.Q 260 396 10.5 156 484 51.7 54.5 6.71 0.2 5 2,380 3,630 cl.O 227 360 10.3 146 444 53.4 50.1 6.74 0.2 7 2,310 3,610 <1.0 209 364 13 156 435 51.7 50.7 " The gross alpha counting vanance exceeded 20" MW-24 Contaminant GWQS GWCL TBA 1 '•••Ist qtr. 2008 Jan - March 3/12/2008 Parameters UsieO in Table 2 Nutrients (mg/L) Ammonia (as N) Nitrate t Nitrite (as N) Heavy Metals (ug/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganess Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zmc Radiologics (pCi/L) Gross Alpha VOC (ug/L) Acetone Benzene 2-Butanone (MEK) Carbon Tetrachloride Chloroform Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xylenes(lotal) Others Field pH (S.U.) Fluoride (mg/l) Chloride (mg/l) Sulfate (mg/l) TDS (mq/1) 2nd qtr. 2008 April - June 5/29/2008 3nd qtr. 2006 July - Sept. 8/7/2008 41hqtr. 2008 Oct. - Dec. 11/11/2008 1st qtr. 2009 Jan - March 2/5/2009 1 1 25 10 5.58 c0.1 0.32 0.12 0.6 0.09 0.41 0.16 0.34 0.1 1 50 4 5 100 730 1.300 11,000 15 800 2 40 100 50 100 a 17,000 30 60 5,000 <5.0 c0.50 <0.50 <25 <10 <^o 3,560 Cl.O "-l.,-7,fiW^ <0.50 <10 <20 <5.0 c10 <0.50 ClOO 0.84 c15 <10 ^5.0 <0.50 c0.50 <25 cio <10 2,740 •:1.0 --.-=-2,330 •=••- <0.50 <10 <20 c5.0 <10 <0.50 <.100 0.77 <15 17 <5.0 c0.50 0.88 c25 <10 cio 1.360 <1.0 V,-^f2,730 ::^- <0.50 <10 27 <5.0 cio 0 65 ClOO 0.67 <15 32 c5.0 <0.50 0.91 <25 dO <10 1.520 <1.0 r^=3,630^^ <0.50 <10 27 c5 0 <10 0.53 <100 0.50 <15 24 <5.0 <0.50 <0.50 c25 <10 cio 1,590 <1.0 T-- ••'^flSO^^— <0.50 <10 c20 11.4 dO <0.50 <100 1.07 c15 37 1 15 1 1 *0.2(O.3W-) '0.9 U/- 0.3) *1.2l0.4-/-) '0.5 (4/-0.3) '1.4 (-^/-0.4) 1 1 700 5 4.000 5 70 30 5 100 46 1.000 10.000 c20 <1.0 <20 <1.0 cl.O <1.0 Cl.O <1.0 c2.0 <1.0 Cl.O c20 <1.0 <20 <1.0 <1.0 cl.O <1.0 Cl.O <2.0 <1.0 <1.0 <20 <1 0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 c20 <1.0 c20 <1.0 <1.0 Cl.O <1.0 <1.0 <2.0 <1.0 <1.0 <20 cl.O <20 <1.0 <1.0 <1.0 <1.0 <1.0 ^2.0 <1.0 <1.0 II 6.5 - 8.5 4 6.91 0.2 44 2,560 4.090 7.14 0.1 45 2,770 4,030 6 75 0.1 39 2,730 4.270 fi.90 0.1 43 2,800 4,170 6.83 0.1 44 2,630 4.310 General Inorganics Listed in Pari I.E.1 .(c)(2)(ii) II Carbonate ln\g/\) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Tolal anions (meq/L) Total cations (meq/L) <1.0 520 469 12.9 167 462 63.1 58.2 <1.0 188 502 12.7 186 500 62 62.4 cl.O 270 514 13 181 492 62.4 62.2 <1.0 225 517 13.2 1S2 4&4 63.2 62.5 <1.0 231 538 14 164 466 59.9 60.5 Concentrations shaded exceed tne GWCL " THe gross aiQha counting vanance exceeded 20% MW-25 Contaminant GWQS GWCL TBA 1 1st qtr. 2008 Jan - March 3/18/2008 2nd qtr. 2008 April - June 6/12/2008 3rd qtr. 2008 July - Sept. 8/4/2008 41h qtr. 2008 Oct. - Dec. 11/10/2008 Isl qtr. 2009 Jan - March 2/3/2009 Parameters Listed in Table 2 1 Nutrients (mj^L) Ammonia (a? N) Nitrate + Nitrite (as N) Heavy Metals (ufj/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molytidenuin Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radiologics (oCi/L) Gross Alpha VOC (UQ/L) Acetone Benzene 2-Butanone (MEK) Cartxjn Tetrachloride Chloroform Chloromethane Dichloromethane Naphthalene; Tetrahydrofuran (THF) Toluene Xylenes{tot^l) Others Field pH (S.U.) Fluoride (mg/l) Chloride (mg/l) Sulfate (mg'i) TDS (mfl/l) General Inorganics Usie Carbonate (mg/l) Bicarbonate (mo/l) Sodium (mg/l) Potassium (mo/t) Magnesium (mg/l) Calcium (mj^i) Tota! anions (meq/L) Total cations (mecVL) II 25 10 0.49 <1.0 0.67 cO.l 0.4 <0.05 0.39 c0.05 0.36 0.1 1 50 4 5 100 730 1,300 11,000 15 BOO 2 40 100 50 100 2 17,000 30 60 5.000 <5.0 <0.50 1.23 <25 10 <10 <30 <1.0 • 1,610 .^ <0.50 11 <20 <5.0 <10 0 95 <100 5.94 <15 cio <5.0 <0.50 1.19 <25 10 <10 <30 <1.0 --"T, J'670^-^ <0.50 11 <20 <5.0 <10 0.93 <100 6.08 52 cio <5.0 <0.50 1.27 c25 <10 . cio <30 cl.O zZ 1^650 - c0.50 11 <20 <5.0 <10 0.86 ClOO 5.56 <15 <10 <5.0 c0.50 1.20 <25 11 <10 <30 <1.0 T-1i61if=^^ <0.50 11 <20 c5.0 <10 0.89 <100 5.35 <15 <10 <5.0 <0.50 1.37 c25 <10 cio <30 1.7 1?#„-„1.640 -'-•' c0.50 11 c20 <5.0 cio 0.92 ClOO 5.87 <15 30 1 15 1 1 '1.9(0.4-H/-) •1.4(t-/-0.5) •1.2(0.4+/-) '0.5(-H,'-0.3) -1.3(-f/-0.4) 1 1 700 5 4,000 5 70 30 5 100 46 1,000 10,000 <20 <1.0 <20 <1.0 <1.0 <1.0 <).0 Cl.O <2.0 cl.O <1.0 <20 cl.O <20 cl.O <1.0 <1.0 <1.0 <1 0 <2.0 <^.o <1.0 c20 <1.0 c20 <1.0 cl.O <1.0 cl.O <1.0 <2.0 <1.0 <1.0 <20 cl.O <20 cl.O <1.0 cl.O <1.0 cl.O c2.0 <1.0 cl.O c20 <1.0 c20 <1.0 cl.O <1.0 <J.O <1.0 <2.0 <1.0 <1.0 1 6.5-8.5 4 7.69 0.3 32 1,750 2,710 din Part 1 E.1.(c)f; <1.0 415 306 9.8 120 353 44.1 41.2 7.30 0.3 25 1,610 2.770 <1.0 381 306 9.48 130 383 40.4 43.4 6.85 0.3 28 1,710 2,700 cl.O 400 310 10 134 391 43 44.3 7.21 0.3 30 1,800 = i^T^E> <1.0 392 321 9.8 129 383 44.7 43.9 6.68 0.4 31 1,630 2,750 cl.O 392 255 8.4 116 331 41.2 37.4 Note: Concefitralions shaded exceed tne GWCL noti jiunrtoring-fif^^t esj MW-26 Contaminant GWQS GWCL (Class III) Parameters Usted in Table 2 Nutrients (mq/L) Ammonia (as N) Nitrate -H Nitrite (as N) Heavy Metals (uq/L) Arsenic Beryllium Cadmium Chnjmium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radiologics (pCi/L) Gross Alpha VOC (uq/L) Acetone Benzene 2-Butanone IMEK) Carbon Tetrachloride Chloroform Chloromsihane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xylene5(total) Others Field pH (S.U.) Fluoride (mq/l) Chloride (mg/I) Sulfate (mg/l) TDS (rrv^/l) 1 January ^•'Monthly AccI. 1/20/2009 1st qtr. 2009 Jan - March 2/2/2009 March '"'Monthly Acd. 3/18/2009 1 25 10 12.5 5 0.19 0.3 1 50 4 5 100 730 1,300 11,000 15 800 2 40 100 50 100 2 17.000 30 60 5.000 25 2 2.5 50 365 650 5,500 7.5 400 1 20 50 25 50 1 8,500 15 30 2,500 =B. f,OM/i^ " .%'S2.6M^. <5.0 <0.50 <0.50 <25 <10 <10 513 <1.0 tz^ 1,370 .M c0.50 <10 c20 15.5 cio <0.50 <100 ':-;2:..l43s=E=, <15 20 ~^.:r1,600Sm i.^sse.^^^ 1 15 7.5 *3.9 (+/- 0 6) 1 1 700 5 4,000 5 70 30 5 100 46 1,000 10,000 3S0 2.5 2,000 2.5 35 15 2.5 50 23 500 5.000 <40 c2.0 <40 <2.0 .=.....1^00. <2.0 "^^« <2.0 <2.0 c2.0 <100 <5.0 <100 <5.0 ==1,600=:^ <5.0 •J^^sflB^- <5.0 c2.0 c5.0 <5.0 <20 <1.0 <20 <1.0 7^ •~r^26o'=^ <1.0 37 cl.O <1.0 .^1.0 1 6.5 - 8.5 4 General Inorganics Listed in Part Cartwnate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/|) Calcium (mq/1) Total anions (metVL) Total cations (meq/L) a E.l.(c)(2)( 706 0.3 49 1,880 3,260 <1.0 392 177 9.8 162 484 46.9 45.4 Note. Concenlralions in bold exceed ihe GWQS Concenlralions snaded exceed tne GWCL (a) =• Mcfithiy accelerated monitoring event ' Tbe gross aiDla counting vanance exceeded 20% MW-27 Contaminant GWOS GWCL TBA • ' 1st qtr. 2006 Jan - March 3/17/2008 2nd qtr. 2008 April - June 6/2/2008 3fd qlr. 2008 July - Sept. 8/6/2006 4th qtr. 2008 Oct. - Dec. 11/4/2008 Isl qlr. 2009 Jan - March 2/16/2009 Parameters Listed in Table 2 1 Nutrients (mtVL) Ammonia (as N) Nitrate-)- Nitrite (as N) Heavy Metals (ug/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thaltium Tin Uranium Vanadium Zinc Radiologics (pCi/L) Gross Alpha VOC (ug/L) Acetone Benzene 2-Butanone (MEK) Carbon Tetrachloride Chloroform Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xvienes( total) Others Field pH (S.U.) Fluoride (mg/l) Chloride (mg'i) Sullate (mg/l) TDS (mg/l) 1 25 10 <0.05 5.4 <0.05 6.26 <0.1 5.83 cO.1 5.91 <0.05 5.7 1 50 4 5 100 730 1.300 11.000 15 800 2 40 100 50 100 2 17.000 30 60 5,000 <5.0 <0.50 c0.50 <25 cio <10 264 <1.0 cio <0.50 cio <20 8.5 <10 <0.50 <100 •cm =30.2-=--•= <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 <30 cl 0 <10 <0 50 <10 <20 10.1 <10 cO.50 <100 ^m31.2^S <15 <10 <5.0 <0.50 <0 50 <25 cio <10 <30 <1.0 <10 <0.50 cio <20 10.3 <10 <0.50 <100 ==^31.5 i^^- <15 cio c5.0 <Q.50 c0.50 <25 ClO <10 c30 <1.0 cio <0.50 ClO <20 11.2 <10 c0.50 <100 --^™=3iif^^ <15 cio c5.0 <0.50 cO.50 <25 cio <10 c30 d.O <10 <0.50 <10 <20 11.6 <10 <0.50 <100 Z7~- -:30.9?:'~m <15 <10 1 15 1 1 *2.0(0.4-H/-) '1.9(0.5*/-) -2.1 (0.5-H/-) *1.3(*/-0.8) •2.4(^-0.6) 1 1 700 5 4,000 5 70 30 5 100 46 1.000 10.000 <20 cl.O <20 cl.O <1.0 cl.O <1.0 Cl.O <2.0 cl.O <1.0 <20 <1.0 <20 <1.0 cl.O <1.0 <1.0 •cl.O <2.0 •cl.O <1.0 <20 <1.0 c20 <1.0 <1 0 cl.O <1.0 cl.O <2.0 <1.0 <1.0 <20 <1.0 <20 <1.0 <1.0 cl.O <1.0 cl.O <2.0 cl.O <1.0 <20 <1.0 c20 <1.0 cl.O <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 1 6.5-8.5 4 8.10 0.8 37 428 1,050 7.55 0.8 39 453 1,030 7.37 07 40 456 1,100 7.41 0.7 28 461 1,120 7.42 0.7 41 442 1,150 General Irrorqanics Listed in Part I.E.1.(c)(t j Cartxinate (mg/l) Bicaibonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (mec^L) Total cations (meq/L) <1.0 456 71 4.6 66.7 156 17.9 16.5 <1.0 424 75.5 4.36 77.3 177 18 18.6 <1.0 440 77.9 4.52 81.2 186 18.3 19.5 <1.0 434 77.1 4.39 79.9 184 18 19.2 <1.0 436 77.9 4.B2 82.2 181 17.9 19.3 Note^ Concentrations shaded exeeo tne GWCL • The g^ss^lpha^coLinting vanance exceeded 20=J ^ r^Sqnp!ec[duririg 2(i*d Quarter (J urio) 2007. Tins welt waB~sarnpl^MiV^y^007jJa'pert_crl a tt'fdmg^a^ci^^poiiNmMly thi of uii]i^This¥tudy^(»jireitfonteij water in this well tor'gi ieast_2Sjpiiihi' prior to sampling. MW-28 Contaminant Nutrients Imq/L) Ammonia (as N) Nitiate-t- Nitrite (as N) Heavv Metals (ua/L( Arsenic Beryllium Cadmium Chromium CobaU Copper Inan Lead Manqanese Mercurv MdvbdBnum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radiologics (pCi/L) iGross Alpha VOC (UQ/L) Aceione Benzene 2-Butanone (MEK) Carbon Tetrachloiide Chloroform Chloromethane Dichloromethane NaptTthalene Tetrahydrofuran (THF) Toluene Xylenes (total) Others Field pH (S.U.) Fluoride (mg/l) Chloride fmg/I) Sulfate (mg/l) TDS (mq/1) Qeneraf Inoraanics Lists Carbonate (mcVD Bicartjonate (mtvl) Sodium (mg/l) Potassium (mu/l) Maqnesium (mo/l) Calcium (mc^'l) Total anions (meqi.) Total cations (meo/Ll GWQS GWCL TBA MW-2e (Undefinedi 2nd qtr. 2005 • April - June 6/21/2005 Snd qlr. 2005 July - Sept 9/22/2005 Parameters Listed in Tabig 2 25 10 0 25 0.1 0 26 D.2 1st qtr. 2008 Jan • March a'12/2008 cO.05 0.1 2nd qlr. 2008 April - June 6/^^008 <0.05 ore 3rd qtr. 2006 July - Sept. a'&^008 cOI O.W 4th qtr. 2008 Oct.- Dec 11/5.'2O08 0.1 0.1 Isl qlr. 2009 Jan - Marcti 2/4,2009 0.05 0.2 1 50 4 5 100 730 1.300 11,000 15 BOO 2 40 100 50 100 2 17,000 30 60 5.000 154 <D50 3.39 •c25 ao <10 ^30 2 -^1,800 ^- •^0.50 cio 29 6.1 cio 0 83 3 22 <15 75 9.7 <0.50 1.58 c25 15 <10 47 cl.O 1,180 <0.50 cio .;20 <5.0 <-iO 0 78 3.75 .;15 18 154 <0.50 34 <25 29 <10 46 cl 0 . 1.540 cO.50 <10 23 c5 0 clO 084 <100 3 17 <15 34 15.1 cO.50 3 22 <25 22 ClO 46 *1.0 1,560. -L cO.50 <10 26 c5.0 clO 0.82 clOO 3.46 ^15 38 14 8 cO50 3.42 <25 27 cio 42 <1 0 ^==^'530." = <0.50 dO 29 <5.0 <10 0.79 clOO 3.15 c15 44 147 <0.5O 3.87 c25 29 <10 57 c1 0 .--i^-i-l,S40~\--ji -<r0.50 <10 21 <5 0 cio 0 79 *100 3.55 c15 37 12 1 <0.50 3 66 c25 28 <10 c30 cl 0 : '•^I.SOOS^ <0.50 cio <2Q 108 cio 1 08 •^100 342 '.15 79 1 1 15 1 L-*20(l .&+•/-) / *1.3(1.0+-/-).-•1 2(0 5-(-/-) •^.^^o.i*'-) '1 8 (0.5./-) '0.8 \±:-<i.7) •1.7 (+.'-0.5) 1 1 700 5 4,000 5 70 30 5 100 46 1,000 10,000 c20 <1.0 <20 cl.O tl.O 28 <1.0 <1.0 c1.0 .;1.0 <1.0 c20 <1 0 <20 cl.O tl.O 4 <1.0 <1.0 cl.O •cl.O ^1.0 c20 <1.0 c20 cl 0 <1.0 cl.O •cl.O •:^ 0 c2 0 <1.0 cl 0 <20 ct 0 <20 <1.0 <1 0 <1 0 <1.0 cl.O .^2.0 <1.0 cl.O c20 cl 0 <20 <10 cl 0 <1.0 cl 0 cl.O ^2 0 cl 0 cl.O c20 <1.D ^20 cl.O •cl 0 *1 0 ct 0 cl.O c2 0 •cl 0 cl.O <20 <1.0 c20 cl.O cl.O cl 0 <1 0 <1.0 c2.0 cl.O <1.0 1 6.5-8.5 A 6.57 0.7 80 2010 3720 din Parti E.1 (c)(2)(iil .^ ^j^^^_ <1.0 155 302 11.6 146 452 46.6 46.3 6.92 0.7 96 2.310 3590 <1.0 152 286 10.6 166 514 53.3 52.1 6.88 O.G 99 2,310 3,640 <1.0 159 292 11.4 160 490 53 5 50.8 ==- 6.47 S 0.6 103 2,360 3,5B0 d 0 149 303 11 1 167 514 54 5 52 9 .-^=&24F. -, 0.6 99 Z.SdO 3.590 cl 0 160 311 11.5 179 546 54 55.8 6.79 0.6 99 2,340 3,650 cl.O 154 312 12 176 546 54 55 6 'i===e.ii8<- = 06 91 2.340 3,730 <1.0 154 286 11 157 479 53.7 49.5 CQicentralions shadad t-tceea the GVJCL • The gross alpha counting vaiiancB eicended 20"- MW-29 Contaminant GWQS GWCL TBA i 1st qtr. 2008 Jan - March 3/19/200B Paramelers Listed in Table 2 Nutrients fmq/L) Ammonia (as N) Niirate-HNilrite (as N) Heavy Metals (ug/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radiologics (pCL/L) Gross Alpha VOC fuq/L) Acelone Benzene 2-Butanone (MEK) Carbon Tetrachloride Chlorofonn Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xvienes(total) Others Field pH (S.U.) Fluoride (mg/l) Chloride (mg/l) Sullate (mg/l) TDS (mg/l) 2nd qtr. 2008 April - June 6/3/2006 3rd qtr. 2Q0B July - Sept. B/5/200B 4th qU. 2008 Oct. - Dec. 11/5/2008 1st qtr. 2009 Jan - March 2/3/2009 1 1 25 10 0.8 <0.1 0.53 <0.05 0.5 <0.05 0.67 <0.1 0.59 <0.1 1 50 4 5 100 730 1.300 11.000 15 800 2 40 100 50 100 2 17,000 30 60 5.000 <5.0 <0.50 <0.50 <25 ClO <10 1.380 cl.O •=4iB30]Mi: c0.50 <10 <20 c5.0 <10 <0.50 <100 11.1 <15 21 <5.0 <0 50 <0.50 <25 <10 <10 1,400 cl.O 2 S,260=^ c0.50 <10 c20 <5.0 cio <0.50 ClOO 10.3 c15 22 ^5.0 <0.50 <0.50 <25 <10 -:10 1,720 ct 0 = -/?i 4,980 iZJt c0.50 <10 c20 <5.0 <10 <0.50 <100 10.4 c15 22 <5.0 <0.50 <0.50 <25 <10 <10 1,720 cl.O 'i~>..-i 5,260'-=-= cO.50 <10 <20 <5.0 cio cO.50 .clOO 10.8 c15 26 <5.0 c0.50 <0.50 <25 <10 clO 1,460 cl.O ^=S,140^?^ <0.50 <10 <20 <5.0 <10 <0.50 <100 10.7 cl5 40 II 15 1 1 '2.1 (0.5*-/-) M.I (0.4+/-) -1.8(0.5t/-l •1.1 (W-0 7) •1.7(+/-0.4) II 1 700 5 4,000 5 70 30 5 100 46 1.000 10,000 c20 <1.0 c20 <1.0 cl.O <1.0 <^.o <1.0 <2.0 <1.0 <1.0 c20 <1.0 <20 <1.0 cl.O <1.0 cl.O <1.0 c2.0 <1.0 cl.O c20 <1.0 c20 <1.0 cl.O <1.0 cl.O <1.0 c2.0 <1.0 cl.O .:20 <1.0 c20 <1.0 <1.0 <1.0 cl.O <1.0 c2.0 <1.0 cl.O <20 cl.O <20 <1 0 ^1.0 <1.0 Cl.O <1.0 c2.0 <1.0 cl.O 1 6.5-8.5 4 7.46 0.8 39 2,840 4,430 6.98 0.8 38 2.B40 4,190 6.71 0.8 35 2.B10 4.340 6.60 0.8 32 2,920 4.380 6.B1 0.8 31 2,710 4.180 General Inorganics Listed in Pari I.E.1.(c)(; II Carbonate (mq/1) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg1) Total anions (meq/L) Total cations (meq'L) <1.0 345 466 17.2 206 461 65.9 61.1 <1.0 321 486 16.8 218 470 65.5 63 <1.0 330 494 17.5 238 524 65 67.7 cl.O 328 508 18.1 231 518 67.1 67.5 cl.O 331 377 13.7 228 508 62.7 60.9 Note: Concentrations shauud exceed Ihe GWCL " The gross alpha counting variance exceeded ?0% |J6I Samplftd during 2na OuirtwV'(Jijnelf^?0Q7lTli^^i^ ot Utah. TTiis study required undishjrlsed water in thisviell fofat least inJuiy 2007 as part ol a hydrogeblogic"3uciy™perforfn«ri byJi*Ur^^^ 2months'pfior lo_aamo(infl^^^^T"--" •.,-', ^1- MW-30 • Contaminant GWQS GWCL TBA Isl qlr. 2006 Jan - March 3/19/2008 Parameters Listed in Table 2 Nutrients (mq/L) Ammonia (as N) Nitrate + Nitrite (as N) Heavy Metals (ug/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radiologics (pCi/L) Gnsss Alpha VOC (uq/L) Acetone Benzene 2-Butanone (MEK) Cartson Tetrachloride Chloroform Chloromethane DichlooDmethane Naphthalene Tetrahydrofuran (THF) Toluene Xylene3(total) Others Field pH (S.U.) Fluoride (mg/l) Chloride (mg/l) Sulfate (mg1) TDS (mg'i) 2nd qtr. 2008 April - June 6/3/2008 3rd qtr. 2008 April - June 8/4/2008 4th qtr. 2008 Oct. - Dec. 11/5/2008 1st qtr. 2009 Jan - March 2/3/2009 1 25 10 <0.05 K- ^-14.8'^^"^- c0.05 x^5=,ja=v^=^ <0.1 W?t :77;3^^ 0.12 ^^^5:^ --i cO.05 •;^;^;^;^^:::S J J^^3»;;F^ 1 50 4 5 100 730 1.300 11.000 15 800 2 40 too 50 100 2 17.000 30 60 5.000 <5.0 <0.50 <0.50 <25 <10 <10 141 <1.0 45 <0.50 <10 <20 30.5 <10 cO.50 <100 6.79 <15 cio c5.0 <0.50 c0.50 <25 cio <10 135 <1.0 49 <0.50 cio <20 30.5 <10 c0.50 <100 6.86 <15 <10 22.4 1 1118:^ ~- _2't7sssrL'' |-;..-.239^=- 26 73 646 'J2S.SKmi 165 <0.50 cio ->7^109. .-'- 47.2 <10 1.17 <100 11 23 27 c5.0 <0.50 <0.50 c25 <10 cio 129 <1.0 45 c0.50 <10 c20 30.2 ctO <0.50 clOO 6.29 cl5 <10 <5.0 <0.50 <0.50 <25 <10 <10 c30 <1.0 47 <0.50 <10 c20 32 cio <0.50 <100 6.67 <15 24 II 15 1 1 •1.0(0 3W-) '0.8 f0.3*/0_ '1.0(0.4-H/-) •0.7 (-H/-0.7I •0.7 (-H/-0.3) II II 700 5 4,000 5 70 30 5 100 46 1,000 10,000 c20 <1.0 <20 <1.0 cl.O <1.0 Cl.O <1.0 <2.0 cl.O <1.0 <20 <1.0 <20 <1.0 <1.0 cl.O <1.0 Cl.O <2.0 <1.0 <1.0 <20 cl.O <20 cl.O <1.0 cl.O <1.0 cl.O <2.0 <1.0 <1.0 <20 <1.0 c20 <1.0 <1.0 <1.0 <1.0 <1.0 c2.0 <1.0 Cl.O c20 <1.0 c20 <1.0 cl.O <1.0 Cl.O <1.0 <2.0 <1.0 <1.0 II 6.5 - 6.5 4 7.90 0.4 118 653 1,610 7.51 04 125 842 1.500 7.19 0.3 121 831 1.640 7.14 0.4 162 799 1.640 7.21 0.4 113 795 1,640 sneral Inorganics Listed in Part l.E.l.(c)(2)f II Carbonale (mg/l) Bicarisonats (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) Note: <1.0 197 108 7.8 68.9 270 25.4 24.1 <1.0 160 109 7.29 71.3 274 25.4 24.7 <1.0 190 115 7.64 75.3 297 25 26.3 cl.O 179 111 7.43 73.3 287 25.3 25.4 <1.0 185 99.7 6.9 67.3 268 23.9 23.4 Concentrations shacJed exceed tne GWCL * The gross alpha couniing varance eicceeded 2\>\. .Not S£^„edWring^_^^a^r_"(June) 2007.;'"ITiiFv^ o' '^tSit'^'s study iwjilred unosturbed water irfttiis^JI fcJrlu^JBast jn July.^2OT7jis part ot a hydfog^lo££study p»rfcwni«^ 2ni(3nthirpr1orto'sarTipling.-^"-^^^::CI^=-^ "-'£;%*^fe^-j. ^^^ MW-31 Contaminani GWQS GWCL TBA 1 1st qtr. 2008 Jan - March 3/19/2008 Parameters Listed in Table 2 Nutrients (mg/L) Ammonia fas N) Nitrate-H Nitrite (as N) Heavy Metals (ug/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radioloqics (pCi/L) Gross Alpha VOC (ug/L) /Acetone Benzene 2-Butanone (MEK) Carbon Tetrachloride Chloroform Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xylene3(total) Others Field pH (S.U.) Fluonde (mg/l) Chloride (mfl,1) Sulfate (mg/l) TDS (mg/i) 25 10 <0.05 §>'^B^===, 2nd qtr. 2008 April - June 6/3/2006 3rd qtr. 2008 July - Sept. 8/4/2008 4lh qtr. 2008 Oct. - Dec. 11/11/2008 1st qtr. 2009 Jan - March 2/a/2009 1 1 <0.05 ^ P0..3- 7 <0.1 ":'CC.28.7-".-^- <0.05 •'•~:^=2^S=. X- <0.05 =kS23:4it.r^ - 1 50 4 5 100 730 1.300 11,000 15 800 2 40 100 50 100 2 17,000 30 60 5,000 <5.0 c0.50 <0.50 c25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 =54.4 -•^.- <10 <0.50 ClOO 7.02 c15 <10 <5.0 <0.50 <0.50 <25 ClO <10 <30 <1.0 <10 <0.50 <10 <20 .= i?55.3mm <10 c0.50 <100 6.95 c15 <10 <5.0 cO.50 <0.50 ^25 <10 <10 <30 <1.0 <10 cO.50 <10 c20 ===S6,4=^ <10 c0.50 ^100 6.77 c15 13 <5.0 c0.50 <0.50 c25 <10 ClO <30 <1.0 <10 <0.50 <10 <20 Ez~-'S3.8'^:^: <10 <0.50 ClOO 6.35 <15 <10 <5.0 <0.50 <0.50 <25 <10 clO <30 cl.O <10 <0.50 <10 <20 ^^fe55.fl£-3r-- cio <0.50 ClOO 7.08 <15 .:10 1 15 1 1 *1.7(0.4-H/-) •1.3(0.4+/-) •1.5(0.4+/-) •0.6 (-^/-0.3) •1.1(+/-0.4) 1 1 700 5 4,000 5 70 30 5 too 46 1,000 10.000 <20 <1.0 <20 cl.O <1.0 cl.O <1.0 cl.O <2.0 <1.0 cl.O <20 cl.O <20 cl.O <1.0 cl.O <1.0 cl.O <2.0 <1.0 <1.0 <20 cl.O <20 cl.O <1.0 cl.O <1.0 cl.O <2.0 <1.0 cl 0 <20 cl.O <20 <1.0 cl.O <1.0 Cl.O <1.0 <2.0 <1.0 cl.O <20 <1.0 c20 <1.0 cl.O <1.0 cl.O <1.0 <2.0 <1.0 <1.0 1 6.5 - 6.5 4 7.98 0.9 124 521 1.220 7.65 0.9 128 514 1.180 7.48 0.8 124 499 1,240 7.75 0.3 119 541 1,220 7.59 0.9 115 488 1,210 General Inorganics Listed in Part I.E.1.(c)(2)(ii) I Carbonale (mg/l) Bicarbonate (mg/l) Sodium (mt^l) Potassium (mg/l) Magnesium (mg/l) Calcium (mq/1) Total anions (meq/L) Total cations (meq/L) cl.O 212 91 6.2 78.2 161 19.7 1B.6 <1.0 197 93.7 5.96 BO.B 163 19.7 19 cl.O 210 94.4 6.07 88.3 160 19.3 20.5 <1.0 205 97 6.2 64.9 180 20.1 20.3 cl.O 205 62.8 5.4 60.1 169 18.5 186 Note Concenlralions shaded exceed ihe GWCL * The gross aiona countingjjran^nce exceeded 20^^bi. Not Sanpled dunng 2nohauarto| (June) 2(XI7.^This wll i^^ "of mah.--This stucJy"'requiredijridis1.urtjed voter, in'ihis''weii for it kJast ii^uly;2007_,aiparic* a tiydrog'eologic siudy pe,rfo0Ti«lb)fJ» M?'™'^™ 2'rhonih3*prior 10" sampling'. "3 • .?-' -'-•-* ""5=""^^^^^^ "-:""'^^#' MW-32 Contaminant GWQS GWCL [Class ill) 1 January '*'MonthlyAccl. 1/20/2009 1st qtr. 2009 Jan - March 2/2/2009 March '•"Monthly AccI. 3/18/2009 Parameters Listed in Table 2 1 Nutrients (mq/L) Ammonia (as N) Nitrate + Nitrite (as N) Heavv Metals (ug/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury Molybclenvjm Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radiologics (pCi/L) Gross Alpha VOC (ug'L) Acetone Benzene 2-Butanone (MEK) Carbon Tetrachloride Chloroforni Chloromethane Dichioromeihane Naphthalene Tetrahydrofuran (THF) Toluene Xylenesftotal) Others Field pH (S.U.) Fluoride (mg/l) Chloride (iTig/ll Sulfate (mg/l) TDS (mg/I) General Inorganics Liste Carbonate (mg/l) Bicartxinate (mg/l) Sodium frrift'l) Potassium (mg/l) Magnesiurn (mg/l) Caldum (mg/|) Total anioits (meq/L) Total cations (meq/L) 1 25 10 12.5 5 0.63 <0.1 1 50 4 5 100 730 1,300 11,000 15 800 2 40 100 50 100 2 17,000 30 60 5,000 25 2 2.5 50 365 650 5,500 7.5 400 1 20 50 25 50 1 8.500 15 30 2,500 £i-;.i2.64i.£:^ •• ^9:i302?a '==^4,-850 :•=• ll '; ff i <5.0 <0.50 =^2.9Sf. ''^" <25 ^9 <10 l^''9:i80^ Cl.O ^-^5,T7»M~. c0.50 11 7.^. ei^m <r5.0 <10 c0 50 <100 2.53 <15 163 ==3S----. - • r^ "^^'V • ^ JO ^^^^^ -r-^-i5,4105r= WJ 64: /--_' 1 15 1 7.5 5.2(1.0+/-) 5.5(-/-0.7) 1 5.0 tO.7-^-/-) 1 1 700 5 4,000 5 70 30 5 100 46 1,000 10,000 350 2.5 2,000 2.5 35 15 2.5 50 23 500 5,000 <20 cl.O <20 cl.O <1.0 cl.O <1.0 <1.0 c2.0 <1.0 cl.O 1: 6.5-8.5 4 2 din Pari I.E.l.(c)(2)( 6.72 0.2 29 2,340 3,510 1 cl.O 419 234 14.3 232 527 56.5 56 Noie. Concemrations m Do'O exceed tne GWOS Concemraticns shaded exceed ihe GWCL (a) - Monthly acce'eraled monitoring event • The gross alpha counting vanance exceeaeci 20° Attachment 1 Copy of February 2009 Analytical Report For Monitoring Well MW-23 ENERGY LABORATORIES, INC. ' 2393 Satt Creek Hig/iway ($2601) • P.O. Bax32S8 • Casper, WY82602 Toll Free 838.235.PS15 • 307.235.0515 • Fax 307.234.1639 • casper@energyiab.com ' www.energyl3b.com LABORATORY ANALYTICAL REPORT J -J J '] J -.J J J J Client Denison Mines (USAJ Corp Project: 1 st Quarter Groundwater 2009 Lab ID: C09020538-004 Client Sample ID: MW'23 ReportDate: 03/24/09 CollecUon Date: 02/11/09 16:14 DateRec4lved: 02/13/09 Matrix: Aqueous AoBiyws MAJOR IONS Carbonate as C03 Bicarbonate as HC03 Calcliim Chloride Fluoride Magnesium Nit^'egen, Ammonia as N Nitrogen, Nkratfl+Nitrtte as N Potassium So(litJm Sulfate PHYSICAL PROPERTIES pH Solids, Total Dissolved TOS @ 180 C METALS - DISSOLVED Arsenic Beryllium Cadmium Chromium Cotialt Copper Iron Lead Manganese Mai'curY Molybdenum HicM\ Selenium Siiver Tin Uranium Vanadium Zinc RADIONUCLIDES - DISSOLVED Gross Alpha minus Rn & U Qrosi Akpha minus Rn & U Precision (t) Gross Alpha minus Rn & U MDC Report RL - Analyte reporting limit. Daflnltlons; r\r.\ _ Anaiitu nnntrol limit Reiult ND 209 435 7 0.2 156 NO 0.3 13.0 364 2310 6.74 3610 ND ND ND ND NO ND ND ND 526 ND ND 22 ND ND ND 19.4 ND 50 3.8 0.8 0.5 Unit* mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mafL S.U. mg/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L pCi/L pCi/L pCi/L MCL/ Qualiriera RL QCL Method 1 1 0.5 1 0.1 0.5 0.05 0.1 O.S 0.5 D 30 0.01 10 5.0 0.50 0.50 25 10 10 30 1.0 10 0.50 10 20 5.0 10 100 0.30 15 10 A2320B A2320 B E200.7 A4500-CI B A4500-F C E200,7 A4500-NH3 G E353.2 E200,7 E200,7 A4500-SO4 E A4500-H S A2540C E200.B E200.8 E200.e E200.8 E200.8 E200.8 E200.7 E200,8 E200,8 E200.a E200.8 E200.8 E200.S E200.8 E200.a E200.B E200.8 E200,8 E900.1 E900.1 E900.1 MCL - Maxlnuim contaminani ievel. Uri _ kinh Hmi^r* ari al- tk& rsnArtlnn l.'m Analysia Date / Sy 02/17/09 12:35/ljl 02/17/09 12:35/ljt 02/25/09 22:13/niw 02/27/09 12:26/sp 02/18/09 14:05/Iji 02/25/09 22:13/rdw 03/04/09 09:12/ja) 02/18/09 12:58/jal 02/25/09 22:13/rdw 02/25/09 22:13/rdw 02/24/09 14:21 /sp 02/13/09 15:16/dd 02/17/09 12:14/ab 02/26/09 22:02 / smi 02/26/09 22:02 / smi 02/26«9 22:02/smi 02/26/09 22:02/smI 02/26/09 22:02 / smi 02/26/09 22:02/smi 02/25/09 22:13/rdw 02/26/09 22:02/smi 02/26/09 22:02/smi 02/2G;'09 22:02 / ami 02/26/09 22:02 / smi 02/26A)9 22:02/smi 02/26A19 22:02 / smi 02/26/09 22:02 / smi 02/26/09 22:02/smi 02/26/09 22:02 / smi 02/26^)9 22:02/smi 02/26^9 22:02/smi 03/04/09 13:01/cgr 03/04/09 13:01/cgr 03fl4/09 13:01/cgr . Wye - Minimum detectable concentration D - RL increased due to sample matrix interference. i Attachment 2 Copy of March 2009 Analytical Summary Report Trip Blank Analysis Canceled due to Equipment Error J J 1 J 3 EfsERGT. MM^mUAUUdM ENERGY LABORATORIES. INC. • 2393 Salt Creek Highway (82601 } -RO. Box 3258 • Casper, WY82602 Toll Free 888.235.0515 • 307.235.0515 • Fax 307.234.1639 • casper@en9rgylab.com - www.ene/gylab'.com ANALYTICAL SUMMARY REPORT April 06. 2009 Denison Mines (USA) Coip 6425 S Hwy 191 Blanding. UT 84511 Workorder No.: C09030659 Quote ID: C1640 - POC Wells/Monthly Groundwater Sampling Project Name: Monthly Groundwater March Energy Laboratories, Inc. received th0 following 6 samples for Denison Mines (USA) Coip on 3/20/2009 for analysis. Sampla ID Client Sampla ID Collect Date Receive Date Matrix Test C09030659-001 MW 14 03/18/0914:41 03/20/09 Aqueous Metals by ICP/ICPMS, Dissolved C09030659-002 MW 26 03/18/0911:09 03/20/09 Aqueous Metals bylCP/ICPMS, Dissolved SW8260B VOCs. Standard List 009030659-003 MW 32 03/18/09 12:32 03/20/09 Aqueous Metals by ICP/ICPMS, Dissolved Gross Alpha minus Rn222 and Uranium i:.: 009030659-004 MW 60 03/18/09 08:17 03/20/09 Aqueous Metals by ICP/ICPMS, Dissolved Gross Alpha minus Rn222 and Uranium SW8260B VOCs, Standard List C09030659-005 MW 65 03/18/0912:32 03/20/09 Aqueous Metals by ICP/ICPMS, Dissolved Gross Alpha minus Rn222 and Uranium C09030659-006 Trip Blank 03/18/09 00:00 03/20/09 Aqueous Cancelled Sample. As appropriate, any exceptions or problems with the analyses are noted in the Laboratory Analytical Report, the QA/QC Summary Report, or the Case NarrativB. ~ If you have any questions regarding these tests results, please call. V.r'ii ••-• N>:.; Report Approvad By: : 6t^fWu IXivUA^ M-''>y ?• "•• ir-rV-..'- . imr. EhERG^. M9,MJtMVMm±* ENERGY LABORATORIES, INC. - 2393 Salt Creek Higtiway (82601}-P. O. Box 3258 - Casper, WY 32602 Toll Free 888.235.0515 • 307.235.0515 • Fax 307.234.1639 • casper^energylab.com •www.energylab.com CLIENT: Denison Mines (USA) Corp Date: 10-Apr-09 Proiect: Monlhly Groundwater March CASE NARRATIVE Sample Delivery Group: C0903065g LABORATORY COMMENTS Trip Blank lost due to analytical equipment en-or. ORIGINAL SAMPLE SUBMITTAL(S) All original sample submittals have been returned with the data package. SAMPLE TEMPERATURE COMPLIANCE: 4X (±2"C) Temperature of samples received may not be considered properiy preserved by accepted standards. Samples that are hand delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun. GROSS ALPHA ANALYSiS Method 900.0 for gross alpha and gross beta is intended as a drinking water method for low TDS waters. Data provided by this method for non potable waters should be viewed as inconsistent. RADON IN AIR ANALYSIS The desired exposure time is 48 hours (2 days). The time delay in returning the canister to the laboratory for processing should be as short as possible to avoid excessive decay. Maximum recommended delay between end of exposure to beginning of counting should not exceed 8 days. SOIL/SOLID SAMPLES All samples reported on an as received basis unless otherwise indicated. ATRAZINE, SIMAZINE AND PCB ANALYSIS USING EPA 505 Data for Atrazine and Simazine are reported from EPA 525.2, not from EPA 505. Data reported by ELI using EPA method 505 reflects the results for seven individual Aroclors. When the results for all seven are ND (not detected), the sample meets EPA compliance criteria for PCB monitoring. SUBCONTRACTING ANALYSIS Subcontracting of sample analyses to an outside laboratory may be required. If so, ENERGY LABORATORIES will utilize its branch laboratories or qualified contract laboratories for this service. Any such laboratories wilt be indicated within the Laboratory Analytical Report, BRANCH LABORATORY LOCATIONS eli-b- Energy Laboratories. Inc. - Billings, MT eli-g - Energy Laboratories. Inc. - Gittette, WY eli-h - Energy Laboratories, Inc. - Helena. MT eli-r - Energy Laboratories. Inc. - Rapid City. SD eii-t - Energy Laboratories, Inc, - College Station, TX CERTIFICATIONS: USEPA: V/r00002: FL-DOH NELAC: E87641; Califomia: 02118CA Oregon: WY200001; Utah; 3072350515: Virginia: 00057: Washington: C1903 ISO 17025 DISCLAIMER: The results of this Analytical Report relate only to the items submitted for anaiysis. ENERGY LABORATORIES. INC. - CASPER.WY certifies that certain method selections contained in this report meet requirements as set forth by the above accrediting authorities. Some results requested by Uie client may not be covered under these certifications. All analysis data to be submitted for regulatory enforcement should t>e certified in the sample state of origin. Please verify ELI's certification coverage by visiting www.energylab.com ELI appreciates the opportunity to provide you with this analytical service. For additional information and services visit our web page www.energyiab.com. THIS IS THE FINAL PAGE OF THE LABORATORY ANALYTICAL REPORT !••;->.-