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HomeMy WebLinkAboutDRC-2010-001801 - 0901a068801698e0,,.'^0'f~'^*--- "Si.^^j^^'''' StateofUtah GARY R. HERBERT Govemor (JREG BELL Lieutenant Governor February 4, 2010 Certified Mail Department of Environmental Quality Amanda Smith Executive Director DIVISION OF RADIATION CONTROL Dane L. Finerfrock Director ^^^'^ad-miWi (Return Receipt Requested) Mr. David C. Frydenlund Vice President and General Counsel Denison Mines (USA) Corp. (DUSA) 1050 Seventeenth St. Suite 950 Denver, Colorado, 80265 SUBJECT: a""* and 3"^ Quarter, 2009 DUSA Groundwater Monitoring Reports: Ground Water Quality Discharge Permit UGW370004: DRC Findings and Notice of Enforcement Discretion Dear Mr. Frydenlund: The Utah Division of Radiation Control (DRC) received the 2"'' Quarter (April - June) and 3"^ Quarter (July - Sept.) 2009 Groundwater Monitoring Reports on September 1, 2009 and December 2, 2009, respectively, (l" Quarter 2009 Report). After review of the 2"'' and 3"^, 2009 Quarterly Reports for the Denison Mines (USA) Corp. (DUSA) White Mesa Uranium Mill near Blanding, Utah, the following issues were identified: 3"^^ Quarter Groundwater Monitoring Report Received Late The DUSA 3'"'' Quarter, 2009 Groundwater Monitoring Report (3""^ Quarter 2009 Report) was received by the Division of Radiation Control (DRC) on December 2, 2009, which is past the December 1 due date. This is a violation of Part I.E. 1 of the Permit. Notice of Enforcement Discretion The Executive Secretary has decided to use enforcement discretion in this matter, in that, the report was received one day late. Although DUSA has had this same problem in the past, DUSA hasn't had this problem since the 3'^'' Quarter, 2007. ,rd As a result, the DRC will not pursue enforcement for DUSA failing to provide the 3 Quarter, 2009 Report by its due date (December 1) at this time, but will give DUSA the benefit of doubt that all groundwater reports will be provided by their respective due date in the future. Please 168 North 1950 West • Salt Uke City, UT Mailing Address: P.O. Box 144850 • Salt Uke City, UT 84114-4850 Telephone (801) 536-4250 • Fax (801) 533-4097 • T.D.D. (801) 536-4414 www.deq.utah.gov Printed on 100% recycled paper Mr. Frydenlund February 4, 2010 Page 2 ensure that compliance is achieved and maintained so as to avoid escalated enforcement action in the future. DUSA Analytical Laboratory Not Certified by State of Utah to Perform Test for Tetrahydrofuran (THF) DUSA failed to use an analytical laboratory that was certified by the State of Utah to perform testing for THF under EPA Method 8260B in the 3"" Quarter (August), 2009 monitoring event. AWAL perfonned testing for THF by EPA Method 8260C. This is a violation of Part I.E.5(c) of the Permit and Section 8.2 and Table 1 of the DUSA QAP. Notice of Enforcement Discretion The Executive Secretary has decided to use enforcement discretion in this matter, in that, the problem has already been pursued via a January 14, 2010 Payment Demand Letter under authority ofthe November 14, 2007 Stipulated Consent Agreement. Monitoring Wells Not Purged for Two Casing Volumes As stated in Section 6.2.7(d)(v) ofthe DUSA QAP, two casing, volumes must be evacuated from the well before the sample is collected. The DUSA QAP directs DUSA to first calculate the amount of time to evacuate two casing volumes and then pump for that length of time. As shown in the table below, DUSA failed to evacuate two casing volumes in 12 wells during both the 2" Quarter (May) and S^** Quarter (August), 2009 monitoring events, and one well during each of the April, June, July, and September 2009 accelerated monitoring events, for a total of 28 wells. Groundwater Monitoring Event 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"'' Qtr, 2009 April, 2009 June, 2009 3"^ Qtr, 2009 3'" Qtr, 2009 3^'' Qtr, 2009 3^" Qtr, 2009 Monitoring V^^ell MW-5 *" MW-1I<" MW-17'" MW-18'" MW-19'" MW-22'" MW-25'" MW-27'" MW-28*" MW-30'" MW-31"' MW-32'" MW-32'-' MW-32 "' MW-5 "•' MW-11'*' MW-IT'*' MW-18'"' DUSA Calculated Two Casing Volumes 41.60 51.26 45.20 81.75 127.83 61.13 50.54 56.74 42.40 42.62 78.66 72.54 71.83 72.40 41.53 51.49 45.63 81.74 DUSA Calculated Purge Rate .33 gpm .33 gpm •33 gpm .33 gpm .33 gpm •33 gpm .33 gpm .33 gpm •33 gpm •33 gpm •33 gpm •33 gpm •33 gpm •33 gpm •33 gpm •33 gpm .33 gpm .33 gpm DUSA Calculated Time to Purge Two Casing Volumes (Minutes) 126 155 136 247 387 185 153 171 127 129 238 219 218 219 125 156 138 247 Reported Time Well Purged (Minutes) 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 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 39.6 39.6 39.6 39.6 39.6 Mr. Frydenlund February 4, 2010 Page 3 3"* Qtr, 2009 3'" Qtr, 2009 3'^ Qtr, 2009 3"^ Qtr, 2009 3"* Qtr, 2009 3'" Qtr, 2009 3'^ Qtr, 2009 3'" Qtr, 2009 July, 2009 Sept., 2009 MW-19*'" MW-22 •"' MW-25 '"' MW-27 '•" MW-28 '"* MW-30 ^*> MW-31 '"' MW-32'"' MW-32 '*' MW-32'"' 127.45 60.41 50.82 56.99 42.07 42.52 78.39 72.35 72.30 77,79 .33 gpm •33 gpm .33 gpm •33 gpm •33 gpm .33 gpm •33 gpm •33 gpm •33 gpm •33 gpm 386 183 154 172 127 128 237 219 219 235 120 120 120 120 120 120 120 120 120 120 39^6 39^6 39.6 39^6 39.6 39.6 39.6 39.6 39.6 39.6 Footnotes: 1) Data for 2) Data for 3) Data for 4) Data for 5) Data for 6) Data for this well was obtained from Tab B of the 2"'' Quarter 2009 Groundwater Monitoring Report this well was obtained from Tab C ofthe 2"'' Quarter 2009 Groundwater Monitoring Report this well was obtained from Tab D ofthe 2"'' Quarter 2009 Groundwater Monitoring Report this well was obtained from Tab B of the 3"" Quarter 2009 Groundwater Monitoring Report this well was obtained from Tab C of the 3"* Quarter 2009 Groundwater Monitoring Report this well was obtained from Tab D of the 3'^'' Quarter 2009 Groundwater Monitoring Report Section 6.2.7 (d)(v) of the DUSA QAP, states: "... If the well is purged to dryness or is purged such that full recovery exceeds two hours, the well should be 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 collected the samples. However, there was no mention that any of these wells were purged to dryness on the field sheets. It appears DUSA assumed that these wells would not be able to 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 groundwater samples is in violation of Section 6.2.7(d)(v) of the DUSA QAP and Part I.E. 1(a) of the Permit. On November 17, 2009, DUSA was issued a NOV (Docket No. UGWG9-06) for failing to excavate two casing volumes in 13 wells before collecting groundwater samples during the January, February, and March 2009 monitoring events. In a December 23, 2009 response to the NOV, DUSA stated: "Samples were collected in accordance with Sections 6.2.7.(d)(v) and 6.2.7.(d)(vi) ofthe QAP during the 4' Quarter, 2009 event." Notice of Enforcement Discretion The Executive Secretary has decided to use enforcement discretion in this matter, in that, the January, February, and March 2009 samples were collected prior to the December 23, 2009 DUSA commitment that this issue would be resolved commencing with the 4"^ Quarter, 2009 Groundwater Monitoring Report. As a result, the DRC will not pursue enforcement for DUSA failing to evacuate two casing volumes before collecting groundwater samples in 13 wells during the January, February, and March 2009 monitoring events at this time, but will give DUSA the benefit of doubt that it has "solved" the problem. Please ensure that compliance is achieved and maintained so as to avoid escalated enforcement action in the future. Mr. Frydenlund February 4, 2010 Page 4 Stabilization of Indicator Field Parameters Not Reached Before Sample Collection As stated 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 measurements." The quarterly DUSA reports showed that the field parameters pH, temperature, specific conductance, and redox potential (Eh) reached stabilization in each well before sample collection in the April, 2"'' Quarter (May), June, July, 3'"'^ Quarter (August), and September, 2009 monitoring events. However, this is not tme for turbidity. As shown on the table below, there were 9 wells in the 2"'' Quarter, one well in the April, one well in the June, 12 wells in the 3'^'' Quarter (August), one well in the July, and one well in the September 2009 monitoring events where turbidity stabilization wasn't reached before sample collection. In each of these situations, DUSA made 4 field measurements for turbidity, the two last of which are listed in the table below. As can be seen, the company failed to reach a -\-l- 10% stability before sample collection. Groundwater Monitoring Event 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"^ Qtr, 2009 April, 2009 June, 2009 3"" Qtr, 2009 3^" Qtr, 2009 3'" Qtr, 2009 3^ Qtr, 2009 3'''' Qtr, 2009 3'" Qtr, 2009 3^" Qtr, 2009 3^" Qtr, 2009 3"" Qtr, 2009 3'" Qtr, 2009 3'" Qtr, 2009 y Qtr, 2009 July, 2009 September, 2009 Well MW-11 '" MW-12'" MW-15'" MW-19'" MW-20'" MW-22'" MW-23 '" MW-29'" MW-31 '" MW-32 '•" MW-32 '•*' MW-1 "" MW-12''" MW-12'"'THF MW-23 <"' MW-24''"THF MW-25 '"^ MW-25''*'THF MW-28 '"' MW-29 '"' MW-29''** THF MW-32'"' MW-32'"'THF MW-32 '^' MW-32 "" Second to Last Turbidity Measurement 2.4 @ 26.4 gallons 0(3) 18.15 gallons 0 @ 24^75 gallons 2.3 @ 26.4 gallons 0.2 @ 1.98 gallons 0 @ 26.4 gallons 0 @ 16.5 gallons 0.9 @ 18.15 gallons 4.8 @ 28.05 gallons 50.1 @ 14.85 gallons 19.3 (a 31.35 gallons 0.5 @ 26.4 gallons 0.4(3) 18.15 gallons 1.7 @ 9,9 gallons 0 @ U.S5 gallons 0^9 @ A.95 gallons 3^5 @ 28.05 gallons 0.2 @ 28.05 gallons 1.5 (§) 26.4 gallons 0.1 @ 19.8 gallons 1.9 (5) 21.45 gallons 10.6 (3) 26.4 gallons 15.8 (3) 26.4 gallons 8.3 @ 24.75 gallons 18 (3) 24.75 gallons Last Turbidity Measurement 1.9 @ 36.3 gallons 0.2 (3)23.1 gallons 0.2 @ 34.65 gallons 3.2 @ 36.3 gallons 2.6 @ 2.64 gallons 0.1 @ 34.65 gallons 1.6(3) 19.8 gallons 9.1 (3) 29.7 gallons 0 @ 36.3 gallons 15.7 (3) 34.65 gallons 5.6 @ 36.3 gallons 0.9 @ 34.65 gallons 0.6 @ 26.4 gallons 0 @ 26.4 gallons 0.9 @ 19.8 gallons 0.6 @ 5.61 gallons 4.4 @ 37.95 gallons 5.6 @ 37.95 gallons 0 @ 36.3 gallons 5.9 (3) 28.05 gallons 12.3 (3) 29.7 gallons 6.3 @ 36.3 gallons 7.8 @ 36.3 gallons 7.4 @ 37.95 gallons . 7.4 @ 36.3 gallons % Difference -20.83% 00 00 39.13% 1200% 00 00 911% 00 -68.66% 71% 80% 50% 00 00 -33.33% 25.71% 2700% 00 5800% 547% -40.56% -50.63% -10.84% -58.89% Footnotes: 1) Dala for this well was obtained 2) Data for this well was obtained 3) Data for this well was obtained 4) Data for this well was obtained 5) Data for this well was obtained 6) Data for this well was obtained from Tab B of the 2"'' Quarter 2009 Groundwaier Moniloring Report from Tab C of the 2"'' Quarter 2009 Groundwaier Monitoring Report from Tab D ofthe 2"'' Quarter 2009 Groundwaier Moniloring Report from Tab B of the 3"* Quarter 2009 Groundwaier Moniloring Report from Tab C of lhe 3'" Quarter 2009 Groundwaier Monitoring Report from Tab D ofthe 3'" Quarter 2009 Groundwaier Monitoring Report Mr. Frydenlund February 4, 2010 Page 5 Failure to 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) of the Permit. On November 17, 2009, DUSA was issued a NOV (Docket No. UGWG9-06) for failing to achieve stable turbidity conditions before collecting groundwater samples in 17 wells during the February and March, 2009 monitoring events. In a December 23, 2009 response to the NOV, DUSA stated: "Samples were collected in accordance with Sections 6.2.7.(d)(v) and 6.2.7.(d)(vi) ofthe QAP during the 4" Quarter, 2009 event." Notice of Enforcement Discretion The Executive Secretary has decided to use enforcement discretion in this matter, in that, the February and March, 2009 samples were collected prior to the December 23, 2009 DUSA commitment that this issue would be resolved commencing with the 4'** Quarter, 2009 Groundwater Monitoring Report. As a result, the DRC will not pursue enforcement for DUSA failing to allow field turbidity to stabilize before collecting groundwater samples during the February and March, 2009 monitoring events at this time, but will give DUSA the benefit of doubt that it has "solved" the problem. Please ensure that compliance is achieved and maintained so as to avoid escalated enforcement action in the future. Thank you for your cooperation in this matter. If you have any questions or comments regarding this letter, please contact Phil Goble at (801) 536-4044. UTAH WATER QUALITY BOARD Dane L. Finerfrock Co-Executive Secretary DLF/PRG:prg State of Utah GARY R. HERBERT Governor GREG BELL Lieutenant Governor Department of Environmental Quality Amanda Smith E.xecutive Director DIVISION OF RADIATION CONTROL Dane L. Finerfrock Director MEMORANDUM TO: FROM: DATE; SUBJECT: ^) ^l^'''^^ Loren Morton Phil Goble P£(^ January 19,2010 Review ofthe 2"" Quarter, 2009 (dated August 31, 2009) and 3'" Quarter, 2009 (dated December 1, 2009) Routine Groundwater Monitoring Reports Groundwater Discharge Pennit (Permit) UG370004 Denison Mines (USA) Corp. (DUSA) White Mesa Mill, Blanding, Utah This is a summary ofthe 2"'' Quarter (April - June) and 3"* Quarter (July - September) 2009 sampling events and all accelerated monitoring during those quarters as documented in the August 31, 2009 and December 1, 2009 DUSA Reports, cited above. After review of both ofthese reports, DRC staff findings are as follows: 1) The DUSA 2"'' Quarter, 2009 Groundwater Monitoring Report was received by its respective due date (September 1). 2) 3rd Quarter, 2(X)9 Groundwater Monitoring Report was received by the DRC past its due date of December 1, 2009. 3) Analytical Laboratory performing testing for DUSA was not certified by State of Utah to perform analysis for THF. 4) Several monitoring wells were not purged for two casing volumes before sample collection. 5) Stabilization of indicator field parameters was not reached before sample collection 6) Certain QA/QC sample data problems are apparent. 7) Summary of the apparent violations is also provided below. LO 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 that pollutant (see Permit, Part LG. 1). 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 of the Permit for two or more consecutive times to be in OOC status. This process will continue until the Background Groundwater Quality Reports submitted on December 29, 2006 and May 31, 2007) has been approved by the DRC. 168 North 1950 West • Sail Uke City. UT Mailing Address: P.O. Box 144850 • Salt Uke City, UT 84114-4850 Telephone (801) 5.36-4250 • Fax (801) 533-4097 -T.D.D. (801) 5.36-4414 www.deq.uiah.gov Printed on 100% 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 III water Class 111 water Class III water ^Position D-4A CF-P, C-2 C-2 Parameter manganese uranium chloroform dichloromethane manganese uranium cadmium gross alpha 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 20O5 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-gradient; CF-P = chloroform pumping well; 1,2,3,4A - CeU# + = Well/parameters not in excess oftheir respective GWCL in the 2'"^ or 3"' quarters of 2009 Wells Monitored Semi-annually Accelerated to Quarterly Monitoring Well MW-1 MW-3 MW-5 MW-12 MW-15 MW-17 MW-18 Class V Class II water Class III water Class 11 water Class 111 water Class III water Class III water Class 11 water *Position U-1 D-4A D-3 D-3 D-4A C-4A U-1 Parameter manganese+ THF-^ Manganese-^- selenium thallium-l- THF+ uranium Fluoride-F manganese THF-l- THF-f- uranium selenium uranium uranium manganese-i- thallium uranium Date of First Exceedance of GWQS/GWCL 4"^ Quarter 2005 2"" Quarter 2005 4*^ Quarter 2005 2"" Quarter 2006 y" Quarter 2005 3'" Quarter 2006 3'" Quarter 2005 2"" Quarter 2005 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 2005 r'Quarter 2006 3'" Quarter 2006 4*^ Quarter 2005 4*^ Quarter 2006 4* Quarter 2005. 3'" Quarter 2005 3'" Quarter 2005 r'Quarter 2006 3^' Quarter 2005 3^" Quarter 2005 3'" Quarter 2005 3'" Quarter 2005 3'" Quarter 2005 r'Quarter 2008 3'" Quarter 2005 3'" Quarter 2005 Page 3 MW-19 Class II water U-1 nitrate -H nitrite-i- fluoride selenium-F thaUium-F uranium-i- 4"" Quarter 2008 4"^ Quarter 2005 2°'^ Quarter 2005 4'^ Quarter 2005 2"" Quarter 2005 r'Quarter 2009 r'Quarter 2006 3^" Quarter 2005 r' Quarter 2006 3'" Quarter 2005 * D - Down-gradient; U = Up-gradient; C - Cross-gradieyit; 1,2,3,4A = Cell # + - Well/parameters not in excess oftheir respective GWCL in the 2'"' or 3' quarters of 2009 Some ofthe parameters listed in the table above were not found to be in excess oftheir respective GWCL during the 2"'' and/or 3^'' Quarter, 2009 monitoring events. The following wells have parameters currently in POOC or OOC status that did not exceed their respective GWCL (last time parameter above GWCL in parenthesis) during the 2"'' and/or 3'^'' Quarter, 2009 sampling events: MW-1 -. Manganese (l" Qtr 2007) and THF (4'*' Qtr 2007) MW-3: Manganese (1" Qtr 2009), THF (3'" Qtr 2006), and Thallium (4"^ Qtr 2007) MW-5: THF (4* Qtr 2005) and Fluoride (2"" Qtr 2009) MW-12: THF (1" Qtr 2007) MW-18: Manganese (4* Qtr 2007) MW-19: Nitrate + Nitrite (4"^ Qtr 2008), Selenium (1" Qtr 2006), Thallium (1" Qtr 2008), and Uranium (4*^ Qtr 2007) 2.0 ?/^ Quarter Groundwater Monitoring Report Received Late The DUSA 3'^'' Quarter, 2009 Groundwater Monitoring Report was received by the Division of Radiation Control (DRC) on December 2, 2009, which is past the December 1 due date. This is a violation of Part I.F.I of the pemiit. 3.0 DUSA Analytical Laboratory Not Certified by State of Utah to Perform Test for THF The THF certification problem was first identified by the DRC after a review of the 2"^* Quarter, 2006 Groundwater Monitoring Report. DUSA was notified of the THF problem in an August 31, 2007 NOV (Docket No. UGW07-02). To resolve the continuing THF problem, the DRC and DUSA entered into a Consent Agreement for Docket No. UGW07-02 on November 14, 2007. In resolution of the August 31, 2007 DRC NOV and ORDER, DUSA agreed to the following (See November 14, 2007 Consent Agreement): • DUSA agrees to use an analytical laboratory certified by the State of Utah to perform analysis for all analytes listed in Table 2 ofthe Permit for all groundwater monitoring performed after January 1, 2008. • In the event that DUSA fails to use a Utah certified analytical laboratory for any groundwater monitoring, DUSA agrees to pay stipulated penalties in the amount of $500 per day for every day after January 1, 2008. On May 30, 2008 the DRC received the DUSA T' Quarter, 2008 (January - March) Groundwater Monitoring Report. The January, 2008 monitoring event was the first event where DUSA committed to meet the terms ofthe Consent Agreement. After reviewing the (January - March) analytical reports, it appeared DUSA failed to use a Utah SHL certified analytical lab (Energy Labs - Casper) for analysis of THF for the January and February, 2008 monitoring events. Enforcement for this problem was pursued via a June 10, 2008 Notice to Pay Letter under authority ofthe November 14, 2007 Stipulated Consent Agreement. Payment ofthe $1,000 penalty was received by DRC in a DUSA letter dated July 10, 2008. Page 4 Starting with the 2"'' Quarter, 2008 Report, DUSA began sending THF samples to American West Analytical Laboratories (AWAL) for analysis. After checking with Utah Bureau ofLahoratory Improvement (BLI), it appears AWAL is no longer certified for THF. Tamara DeMorest from the BLI, let the DRC know in a December 10, 2009 email that AWAL's certification for THF under EPA Method 8260C expired May 31, 2009. Tamara DeMorest's December 10, 2009 e-mail is included as Attachment 1- This information was shared with DUSA in a conference call on December 22, 2009. DUSA called the DRC later that day and said that they had talked with its laboratory. DUSA reported that AWAL claimed this problem was due to an Utah SHL mistake and Tamara DeMorest would be contacting the DRC to substantiate this claim. On December 29, 2009 the DRC called Tamara DeMorest to verify the claim. Apparently, as explained by Ms. DeMorest, AWAL updated their certified method from 8260B to 8260C on June 4, 2008. AWAL was certified by the SHL to perform analysis for THF under method 8260C, and this certification ended on May 31, 2009. However, Section 8.2 and Table 1 ofthe DUSA QAP requires that THF be analyzed under EPA Method 8260B. AWAL performed analysis for THF under method 8260G, this is a violation of Section 8.2 and Table 1 ofthe DUSA QAP and Part LE.l(a) ofthe Permit. After discussions with Ms. DeMorest, it appears that DUSA used an analytical laboratory (AWAL) that was both: 1) not certified after June 4, 2008 by the SHL to perform analysis for THF, and 2) was certified to perform analysis for THF only under the required method 8260B (prior to June 4, 2008). This THF problem spans over several quarterly reports: (3''' and 4* Qtr, 2008 and V\ 2"'', and 3''^ 2009). However, the 3"* and 4*, 2008 reports have be closed out via an October 7, 2009 Settlement Agreement (UGW09- 04SA) and DUSA already been cited for problems found in the T' Quarter, 2009 Report under a November 17, 2009 NOV (Docket No. UGW09-06). It is recommended that the Executive Secretary use enforcement discretion for the THF problems found in these reports, in that the Division's findings have already been closed. However, the DRC should cite DUSA for the THF problems found in the 2"" and 3"* Quarter Reports. To this end, the DRC issued a Demand for Payment letter on January 14, 2010 to enforce the terms ofthe November 14, 2007 Consent Agreement. During the 2"** Quarter (May), 2009 monitoring event, 28 THF samples were collected over a nine day period (May 12 - 14, 16 - 21). AWAL performed analysis for all ofthe 28 THF samples. During the 3'^ Quarter (August), 2009 monitoring event, 19 THF samples were collected over an eight day period (August 10 - 13, 17-18, and 25 - 26). AWAL performed analysis for all of the 19 THF samples. Although the laboratory is certified by the State of Utah Bureau ofLahoratory Improvement to perform volatile organics analysis by EPA Method 8260C, it is not certified to perform testing for THE and Section 8.2 and Table 1 of the DUSA QAP requires that THF be analyzed under EPA Method 8260B. This is a violation of Section 8.2 and Table 1 of the DUSA QAP and Parts I.E. 1(a) and I.E.5(c) of the permit. 4.0 Monitoring Wells Not Purged for Two Casing Volumes As stated in Section 6.2.7(d)(v) ofthe DUSA QAP, two casing volumes must be evacuated from the well before the sample is collected. The DUSA QAP directs DUSA to first calculate the amount of time to evacuate two casing volumes and then pump for that length of time. As shown in the table below, DUSA failed to evacuate two casing volumes in 12 wells during both the 2"'' Quarter (May) and 3'^'^ Quarter (August), 2009 monitoring events, and one well during each ofthe April, June, July, and September 2009 accelerated monitoring events, for a total of 28 wells. Page 5 Groundwater Monitoring Event 2"'' Qtr, 2009 2"" Qtr, 2009 2"^ Qtr, 2009 2"" Qtr. 2009 2"^ Qtr, 2009 2"" Qtr, 2009 2"^ Qtr, 2009 2'" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 April, 2009 June, 2009 3'^'' Qtr. 2009 3"^^ Qtr, 2009 3^'' Qtr, 2009 3'" Qtr, 2009 3^' Qtr, 2009 3''' Qtr, 2009 3"" Qtr, 2009 3'' Qtr, 2009 3^'' Qtr, 2009 3'" Qtr, 2009 3''' Qtr, 2009 3^" Qtr, 2009 July, 2009 Sept., 2009 Monitoring Well MW-5"* MW-11 '" MW-I7'" MW-18'" MW-19'" MW-22'" MW-23'" MW-27'" MW-28'" MW-30'" MW-31'" MW-32'" MW-32 '^' MW-32 '" MW-5 '•** MW-ll '•" MW-17'-*' MW-18"*' MW-19'-*' MW-22'-" MW-25 '•*' MW-27'"" MW-28 '•" MW-30'-" MW-31 '•" MW-32 <•" MW-32 <^' MW-32 <*" DUSA Calculated Two Casing Volumes 41.60 51.26 45.20 81.75 127.83 61.13 .50.54 56.74 42.40 42.62 78.66 72.54 71.83 72.40 41.53 51.49 45.63 81.74 127.45 60.41 . 50.82 56.99 42.07 42.52 78.39 72.35 72.30 77.79 DUSA Calculated Purge Rate 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm 33 gpm DUSA Calculated Time to Purge Two Casing Volumes (Minutes) 126 155 L36 247 387 185 153 171 127 129 238 219 218 219 125 156 138 247 386 183 154 172 127 128 237 219 219 235 Reported Time Well Purged (Minutes) 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 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 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 39.6 39.6 Footnotes: 1) Dala for this well 2) Daia for this well 3) Dala for this well 4) Data for this well 5) Data for this well 6) Data for this well was obtained from Tab B of the 2°'' Quarter 2009 Groundwaier Moniloring Report was obtained from Tab C of the 2"'' Quarter 2009 Groundwaier Moniloring Report was obtained from Tab D of the 2"'' Quarter 2009 Groundwaier Monitoring Report was obtained from Tab B of the S"* Quarter 2009 Groundwater Monitoring Report was obtained from Tab C of ihe 3"' Quarter 2009 Groundwater Moniloring Report was obtained from Tab D of the 3"^ Quarter 2009 Groundwater Monitoring Report Section 6.2.7(d)(v) of the DUSA QAP, states: "... If the well is purged to dryness or is purged such that fidl recovery exceeds two hours, the well should be 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 collected the samples. However, there was no mention that any of these wells were purged to dryness on the field sheets. It appears DUSA assumed that these wells would not be able to 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 groundwater samples is in violation of Section 6.2.7(d)(v) of the DUSA QAP and Part I.E. 1(a) of the Permit. This problem was also found when DRC staff reviewed the T' Quarter, 2009 DUSA groundwater monitoring report. In that instance, the problem was brought to the company's attention in a November 17, 2009 NOV (Violation No. 3). DUSA responded to that action with a December 23, 2009 letter, which is currently in review. Page 6 5.0 Stabilization of Indicator Field Parameters Not Reached Before Sample Collection As stated 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 measurements." The quarterly DUSA reports showed that the field parameters pH, temperature, specific conductance, and redox potential (Eh) reached stabilization in each well before sample collection in the April, 2"'' Quarter (May), June, July, 3"* Quarter (August), and September, 2009 monitoring events. However, this is not true for turbidity. As shown on the table below, there were 9 wells in the 2"** Quarter, one well in the April, one well in the June, 12 wells in the 3"* Quarter (August), one well in the July, and one well in the September 2009 monitoring events where turbidity stabilization wasn't reached before sample collection. In each ofthese situations, DUSA made 4 field measurements for turbidity, the two last of which are listed in the table below. As can be seen, the company failed to reach a +1- 10% stability before sample collection. Groundwater Monitoring Event 2"' Qtr, 2009 2°^ Qtr, 2009 2""^ Qtr, 2009 2"" Qtr, 2009 2"" Qtr, 2009 2"^ Qtr, 2009 2"'' Qtr, 2009 2"" Qtr, 2009 2°^ Qtr, 2009 April, 2009 June, 2009 3'^ Qtr, 2009 3'" Qtr, 2009 3''' Qtr, 2009 3^" Qtr, 2009 3"^ Qtr, 2009 3'" Qtr, 2009 3'" Qtr, 2009 3"^ Qtr, 2009 3"" Qtr, 2009 3^" Qtr, 2009 3'^ Qtr, 2009 3'^ Qtr, 2009 July, 2009 September, 2009 Well MW-11 '" MW-12'" MW-15'" MW-19'" MW-20'" MW-22 '" MW-23 ^" MW-29'" MW-31'" MW-32 "' MW-32 '^' MW-1 '"' MW-12''" MW-12'"'THF - MW-23'"' MW-24'"'THF MW-25 '•" MW-25'"'THF MW-28'"' MW-29'"' MW-29'"'THF MW-32 '•*' MW-32'"'THF MW-32 '^' MW-32 "" Second to Last Turbidity Measurement 2.4 @ 26.4 gallons 0(3) 18.15 gallons 0 @ 24.75 gallons 2.3 (3) 26.4 gallons 0.2 @ 1.98 gallons 0(a> 26.4 gallons 0(§> 16.5 gallons 0.9(3) 18.15 gallons 4.8 @ 28.05 gallons 50.1 (S 14.85 gallons 19.3 @ 31.35 gallons 0.5 @ 26.4 gallons 0.4 @ 18.15 gallons 1.7 @ 9.9 gallons 0 @ 14.85 gallons 0.9 @ 4.95 gallons 3.5 @ 28.05 gallons 0^2 @ 28^05 gallons L5 (3) 26.4 gallons O.I @ 19.8 gallons 1.9 (3) 21.45 gallons 10.6 @ 26.4 gallons 15.8 @ 26.4 gallons 8.3 @ 24.75 gallons 18 @ 24.75 gallons Last Turbidity Measurement 1.9 (3) 36.3 gallons 0.2 (3)23.1 gallons 0.2 @ 34.65 gallons 3.2 @ 36.3 gallons 2.6 (3) 2.64 gallons 0.1 (3) 34.65 gallons 1.6 @ 19.8 gallons 9.1 @ 29.7 gallons 0 @ 36.3 gallons 15.7 (3) 34.65 gallons 5.6 @ 36.3 gallons 0.9 @ 34.65 gallons 0.6 @ 26.4 gallons 0 @ 26.4 gallons 0.9 @ 19.8 gallons 0.6 @ 5.61 gallons 4.4 @ 37.95 gallons 5.6 @ 37.95 gallons 0 @ 36.3 gallons 5.9 @ 28.05 gallons 12.3 @ 29.7 gallons 6.3 @ 36.3 gallons 7.8 @ 36.3 gallons 7.4 @ 37.95 gallons 7.4 @ 36.3 gallons % Difference -20.83% 00 00 .• 39.13% 1200% . 00 00 911% 00 -68.66% 71% 80% 50% 00 00 -33.33% 25.71% 2700% 00 5800% 547% -40.56% -50.63% -10.84% -58.89% Footnotes: 1) Data for this well was obtained 2) Data for this well was obtained 3) Dala for this well was obtained 4) Dala for this well was obtained 5) Data for this well was obtained 6) Data for this well was obtained from Tab B of the 2"" Quarter 2009 Groundwater Moniloring Report from Tab C of the 2"'' Quarter 2009 Groundwater Moniloring Report from Tab D ofthe 2"'' Quarter 2009 Groundwaier Monitoring Report from Tab B of the 3"* Quarter 2009 Groundwaier Monitoring Report from Tab C ofthe 3"" Quarter 2009 Groundwater Monitoring Report from Tab D of the 3"* Quarter 2009 Groundwater Monitoring Report Failure to 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 Permit. This problem was also found when DRC staff reviewed the r' Quarter, 2009 DUSA groundwater monitoring report. In that instance, the problem was brought to the company's attention in a November 17, 2009 NOV (Violation No, 2). DUSA responded to that action with a December 23, 2009 letter, which is currently in review. Page 7 6.0 Groundwater Samples Collected with Turbidity Measurement > 5 NTU As stated in Section 6.2.7(d)(v) ofthe DUSA QAP: "... turbidity measurement in the water should be 5 NTU prior to sampling unless the well is characterized by water that has a higher turbidity. " During the P' Quarter, 2009 (February) monitoring event, the Field Data Worksheet for monitoring wells MW-24 and MW-32 showed that groundwater samples were collected above the 5 NTU standard (see table below). Groundwater Monitoring Event 2"" Qtr, 2009 2"" Qtr, 2009 April. 2009 June, 2009 3rci Qtr, 2009 3rd Qtr. 2009 3rd Qtr, 2009 3rd Qtr, 2009 3rd Qtr, 2009 July, 2009 September, 2009 Weli MW-29'" MW-32'" MW-32 '•'• MW-32'" MW-19''*' MW-24 '•" MW-25 <"' MW-29 '•" MW-29'"'THF MW-32 "' MW-32 "" Turbidity 9.1 6.9 15.7 5.6 7.0 8.0 5.6 . 5.9 12.3 7.4 7.4 Footnotes: 1) Dala for this well 2) Data for this well 3) Data for this well 4) Dala for this well 5) Dala for this well 6) Data for this well was obtained from Tab B of the 2"'' Quarter 2009 Groundwaier Moniloring Repori was obtained from Tab C of the 2"^" Quarter 2009 Groundwaier Monitoring Report was obtained from Tab D of the 2"'' Quaner 2009 Groundwater Monitoring Report was obtained from Tab B of the 3"" Quarter 2009 Groundwaier Moniloring Report was obtained from Tab C of the 3'^'' Quarter 2009 Groundwater Moniloring Repori was obtained from Tab D ofthe 3''' Quarter 2009 Groundwaier Moniloring Report Failure to collect groundwater samples below the 5 NTU standard is a concem in that 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 ofthe DUSA QAP to make it a requirement before sample collection. 7.0 Previous Monitoring Events QA/QC Sample Data Problems QA/QC problems found in the P' Quarter, 2009 groundwater monitoring events showed a number of issues of non-compliance with the DUSA QAP (for details see July 14, 2009 DRC Memo). These antecedent problems were identified in previous DRC documents, and included: • The March, 2009 Trip Blank was lost due to an analytical equipment error. Therefore, there were not any March, 2009 Trip Blank results to compare to the original sample results for 11 VOC parameters in three wells. This is in violation of Section 9.13 of the DUSA QAP and Part I.E. 1(a) of the Permit. • 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(d)(v) ofthe DUSA QAP and Part LE.l(a) ofthe Permit. DUSA failed to allow field turbidity to 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. 1(a) of the Permit. Page 8 • DUSA failed to measure for field turbidity in wells MW-14 and MW-32 for the 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) of the Permit. • The 1" Quarter, 2009 Water Table Contour Map was created with elevation data that was not contemporaneous, i.e. collected within 5 calendar days or less. This map was in violation of Section 11 of the DUSA QAP and Part I.E. 1(a) of the Permit. • During the T' Quarter, 2009 monitoring event. Relative Percent Difference was greater than 20% in original sample ((MW-11, 138 /ig/L) compared to duplicate sample (MW-70, 110 fig/L) for thallium (22.58%), see Table 6. This QA/QC problem was in violation of Section 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 will use the sample with the highest concentration submitted to determine compliance. 2) Starting with the submittal of the 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. 8.0 QA/QC Sample Data Problems - 2"*^ and 3"" quarters of 2009 The following are QA/QC problems that occurred in the monitoring events during the 2"'' and 3"* quarters of 2009. The issues listed below are in non-compliance with the QAP and details can be found in tables 4 and 5 attached to this memo. 2"" Quarter 2009. Sampling Date: Mav 12 - 30. 2009 (Table 4) • The field blank (MW-60) had detectable concentrations of zinc, chloroform, carbonate, and bicarbonate. • The field blank (MW-60) was also analyzed for nutrients, heavy metals, gross alpha, VOCs, and inorganics. 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 DUSA doesn't use the field blank results to flag or disqualify the groundwater sample results. June 17. 2009 Accelerated Monitoring Event (Table 4) • The field blank (MW-60) had detectable concentrations of chloroforrh. • 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 that DUSA is using the presence of detectable concentrations in the field blanks in 2" Quarter, 2009 Groundwater Report to flag or disqualify the groundwater sample results. Furthermore, the approved QAP is currendy silent on how field blanks results should have a bearing on groundwater sample interpretation. 3'" Quarter 2009. Sampling Date: August 17-31. 2009 (Table 5) • A trip blank (dated 8/24/2009) showed a result of 21 /ig/L for acetone. Trip blanks are prepared by the lab and given to the sampler so they can accompany the real samples through transport, storage, and analysis. Ifa 'hit' is measured in the trip blank and also exists at similar concentrations in the real samples, the problem is probably somewhere between transport and the Page 9 completion of analysis. Ifa hit is measured in the trip blank but is not in the real samples, it usually indicates that the trip blank was not made properly, not stored properly, or not analyzed properly. There were no other groundwater samples in the 3"* Quarter (August), 2009 monitoring event that showed detectable concentrations of acetone. Therefore, it appears the source of the acetone contamination in the trip blank came from the analytical lab. This information was shared with Ms. Tamara DeMorest ofthe State Health Laboratory in an email dated January 19, 2010. • Relative Percent Difference was greater than 20% in original sample (MW-22, 0.72 mg/L) compared to duplicate sample (MW-70, 0.94 mg/L) for Ammonia (as N) (26.51%), see Table 5. This is in violation of Section 9.1.4(a) ofthe QAP. When DUSA submits an original and duplicate sample to the DRC for reporting purposes, the DRC will use the sample with the highest concentration submitted to determine compliance. However, both samples were below the GWCL for Ammonia (as N) [12.5 mg/L]. • Relative Percent Difference was greater than 20% in original sample (MW-32, 48 mg/L) compared to duplicate sample (MW-65, 30 mg/L) for chloride (46.15%), see Table 3. This is in violation of Section 9.1.4(a) ofthe QAP. When DUSA submits an original and duplicate sample to the DRC for reporting purposes, the DRC will use the sample with the highest concentration submitted to determine compliance. September 9. 2009 Accelerated Monitoring Event (Table 5) • The trip blank (dated 9/9/2009) showed a result of 1.3 /ig/L for chloroform. Trip blanks are prepared by the lab and given to the sampler so they can accompany the real samples through transport, storage, and analysis. If a 'hit' is measured in the trip blank and also exists at similar concentrations in the real samples, the problem is probably somewhere between transport and the completion of analysis. If a hit is measured in the trip blank but is not in the real samples, it usually indicates that the trip blank was not made properly, not stored properly, or not analyzed properly. During the September 2009 monitoring event, monitoring well MW-26 had a chloroform concentration of 2,800 /ig/L. Therefore, it appears the source of the chloroform seen in the trip blank came from the cross contamination during sampling. As stated in section 9.1.3 ofthe QAP, non-conformance is defined when the trip blank samples are within an order of magnitude ofthe original sample result. The result of 1.3 /ig/L for chloroform in the trip blank is not within an order of magnitude with the chloroform result (2,800 /ig/L) in monitoring well MW-26. Hence, no QA flag is needed for this well / parameter. 9.0 Violations Where Pursuing a Notice of Violation is Recommended I. During the 3"* Quarter (August), 2009 monitoring event, AWAL performed analysis for 19 THF samples. Although the laboratory is certified by the State of Utah Bureau ofLahoratory Improvement to perform volatile organics analysis by EPA Method 8260C, it is not certified to perform testing for THF and Section 8.2 and Table 1 of the DUSA QAP requires that THF be analyzed under EPA Method 8260B. This is a violation of Section 8.2 and Table 1 ofthe DUSA QAP and Parts I.E. 1(a) and I.E.5(c) ofthe permit. Separate enforcement action on this matter has already been taken, see the January 14, 2010 Payment Demand Letter. 10.0 DRC Staff Reconunendations for Enforcement Discretion 1. The 3"* Quarter, 2009 Groundwater Monitoring Report was received by the Division of Radiation Control (DRC) on December 2, 2009 past its respective due date (December 1). This is a violation ofPart I.E. lof the Permit. This is a continuing problem. DUSA was issued a NOV (Docket No. UGWG7-04) on January II, 2008 for failing to provide the T' and 2"'' Quarter 2007 Reports by their due dates (June 1 and Page 10 September 1, respectively). DUSA was also issued a NOV (Docket No. UGWG8-01) for failing to provide the 3'^'' Quarter 2007 Report by its respective due date (December 1). However, DRC staff believes enforcement discretion is.appropriate in this matter, in that, since the 3"* Quarter, 2007 Report and up to the 3'^'' Quarter, 2009 Report, DUSA has provided all groundwater monitoring reports by their respective due dates. However, if DUSA fails to provide the quarterly groundwater monitoring reports by their respective due date in the future, the Executive Secretary will take the appropriate escalated enforcement action. 2. During the 2*"^ Quarter (May), 2009 monitoring event, AWAL performed analysis for 28 THF samples. Although the laboratory is certified by the State of Utah Bureau ofLahoratory Improvement to perform volatile organics analysis by EPA Method 8260C, it is not certified to perform testing for THF and Section 8.2 and Table 1 of the DUSA QAP requires that THF be analyzed under EPA Method 8260B. This is a violation of Section 8.2 and Table 1 of the DUSA QAP and Parts I.E. 1(a) and I.E.5(c) of the permit. This problem was brought to DUSA's attention in the January 14, 2010 Payment Demand Letter. Although DUSA's analytical laboratory (AWAL) performed analysis for 28 THF samples for the May 2009 monitoring event under EPA Method 8260C, while Section 8.2 and Table 1 ofthe DUSA QAP requires that THF be analyzed under EPA Method 8260B, DRC staff believes enforcement discretion is appropriate in this matter, in that, the problem has already been pursued via a January 14, 2010 Payment Demand Letter under authority ofthe November 14, 2007 Stipulated Consent Agreement. 3. DUSA failed to evacuate two casing volumes before collecting groundwater samples in 28 wells during the April - September, 2009 monitoring events. This is in violation of Section 6.2.7(d)(v) ofthe DUSA QAP and Part I.E. 1(a) ofthe Permit. This is a repeat violation from the T' Qtr, 2009 Report which was brought to the company's attention in a November 17, 2009 NOV (Violation No. 3). DUSA responded to that action with a December 23, 2009 letter, which is currently in review. This is a continuing problem. On November 17, 2009, DUSA was issued a NOV (Docket No. UGWG9-06) for failing to evacuate two casing volumes before collecting groundwater samples in 13 wells during the January, February, and March 2009 monitoring events. However, DRC staff believes enforcement discretion is appropriate in this matter, in that, the samples collected in these wells were collected prior to the December 23, 2009 DUSA commitment that this issue would be resolved commencing with the 4* Quarter, 2(X)9 Groundwater Monitoring Report. However, if DUSA fails to evacuate two casing volumes before collecting groundwater samples in any well in the future, the Executive Secretary will take the appropriate escalated enforcement action. 4. DUSA failed to allow field turbidity to stabilize before collecting groundwater samples in 25 wells during the April - September, 2009 monitoring events. This is in violation of Section 6.2.7(d)(v) of the DUSA QAP and Part I.E. 1(a) of the Permit. This is a repeat violation from the P' Qtr, 2009 Report which was brought to the company's attention in a November 17, 2009 NOV (Violation No. 2). DUSA responded to that action with a December 23, 2009 letter, which is currently in review. This is a continuing problem. On November 17, 2009, DUSA was issued a NOV (Docket No. UGWG9-06) for failing to allow field turbidity to stabilize before collecting groundwater samples in 17 wells during the Febmary and March 2009 monitoring events. However, DRC staff believes enforcement discretion is appropriate in this matter, in that, the samples collected in these wells were collected prior to the December 23, 2009 DUSA commitment that this issue would be Page 11 resolved commencing with the 4"" Quarter, 2009 Groundwater Monitoring Report. However, if DUSA fails allow field turbidity to stabilize before collecting groundwater samples in any well in the future, the Executive Secretary will take the appropriate escalated enforcement action. 11.0 DRC Staff Reconunendations for Improvement 1. During the April - September, 2009 monitoring events, DUSA failed to collect groundwater samples in several monitoring wells 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 Permit. Unfortunately, the way this 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 be strengthened in the next version ofthe DUSA QAP to make this requirement enforceable. This recommendation was made previously in a DRC staff memorandum dated July 14, 2009. APPENDIX 1 QA/QC Tables n 1= 5 s s s 2 E 5 8. o 0) O S 2 S i5« ! Ol JO Q E £ S Q « d i OS = 3 X) 2 — Q. c rt f^ 0) cn ^ o c .a> c TJ r CO I O ffi : ! g-Soy ; o Q) ^ i *- £ I^ : 0^.0) I : c o 2 J • = 20)-: rt ~ Q. I . 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IS E 13 Q. c i E.i c « I ^ <o c • I- 5 > I V V vvN-!v V V oooo ooooooo VyVv VVVVVVV oOoO ooooooo CVJr^CNJr-^ r^r^*-^i-^CM*-^'r^ VvVv VVVVVVV oooo ooooooo V V V V VVV oOoc3 ooooooo VvVV VVVVV\r OOQO OOOO VvVv VVVV Q -ooP csppp cM'VvV VVVV p p V V OOQO PPPP V V V V VVV VvVv VVVV OOQO OOOO VvVV VVVV '^l'" S8«i^i| "3s 1^ «5 S ^ OJ to (>j (^ 0(0 (o eg < " s <^ «=» § § 2 O CO O). w] !?"S^ S » i>i § § ^ oi «J t^- ^- {J> O r?i O 00 CM o l\: o •* d o IS ci oi I oo S* — 1 ^ o> «>. _ -COOOOOOJO) OCDCOOltDO'^CCl OT-^dcMT^dcsid p CO T- o(> r V •* CM CM < -. -- to "? CO •^ CM (O ^Q-*i>*(DlOCM*-viScMcgO*'**" ~ C39oOlf>,r-*d9 p ^ to CO CM IO P , •N '- CM 00 CO 00 . C CM i-! T- Tf ^ • OocoCM(OCS|01(0 ^ CM T- ^ ^ ^ <• ^ T- .- .£• .~- •& er cn SiE §-^'a,£fl' : E g s Rlllg EO ^ C3 * I i n ^ OS V 5 • t -.'.?.: II i?i i'.L S i, ill 11^ O ( I. E si: SS,^i 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 GWQS GWCL (Class II) 1 '•"1st qtr. 2008 Jan - March 3/19/2008 2nd qtr. 2008 April - June 6/4/2008 '"'3rd qtr. 2008 July - Sept. 8/12/2008 4th qtr. 2008 Oct. - Dec. 11/4/2008 "'1st qtr. 2009 Jan - March 2/11/2009 2nd qtr. 2009 April - June 5/27/2009 ""3rd qtr. 2009 July - Sept. 8/25/2009 Parameters Listed in Table 2 1 Nutrients (mg/L) Ammonia (as N) Nitrate + Nitrite (as N) Heaw Metals {pall) Arsenic Servilium Cadmium Ctiromium Cobalt Copper Iron Lead Manganese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radioloqics (pCi/L) Gross Aloha VOC (//g/L) Acetone Benzene 2-Butanone (MEK) Carbon Tetrachloride Chloroform Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xylenes(total) Others Field DH (S.U.) Fluoride (mg/l) Chloride (mg/l) Sulfate (mg/l) TDS (ma/I) General Inorganics Listed Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) 25 10 6.25 2.5 0.09 0.42 <0.1 0.18 0.05 0.2 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 25 182.5 325 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 <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 68 <0.50 <10 <20 <:5.0 <10 <0.50 <:100 0.49 <15 <10 83 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 79 <0.50 cio <20 <5.0 <10 <0 50 <100 0.37 <15 <10 84 1 15 3.75 1 1 *1.2(+/-0.4) 1 1 *0.4(+/-0.7) I I '0.7 (+/-0.6) 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 <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 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 6.4 <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 8.4 <1.0 <1.0 5.3 II 6.5-8.5 4 in Part l.E 1 7.48 0.3 15 726 1,220 7.49 0.3 12 719 1,300 7.39 0.3 16 744 1,330 .1.(c)(2)(ii) <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 <1.0 304 158 6.4 63.1 165 21 20.5 Note: Concentrations in bolcJ exceed the GWQS Concentrations shatJed in yellow exceed trie GWCL (a) = Quartefly accelerated monitonng event * Ttie gross alpha counting variance exceeded^20% Not Sarn'pjed durjng^nd .Quarter (June) 2007^T1iis weltwas sampled in Uuty 2007 as partot'a hydrogeologic study peffomied^by ttie University of Utah. The study/equiredundisturbed water in tfijs-:^^ well for at least 2 rhonttis prior to sampling.^:' }' "'••• '^. -^ '-. ".' •" '.'. }.'' • -.-r" ^ ;; ' •'*^' MW-2 Contaminant GWQS GWCL (Class III) 1 2nd qtr. 2007 April - June 4th qtr. 2007 Oct. - Dec. 10/23/2007 2nd qtr. 2008 April - June 6/4/2008 4th qtr. 2008 Oct. - Dec. 11/12/2008 2nd qtr. 2009 April - June 5/29/2009 Parameters Listed In Table 2 1 Nutrients (mq/L) Ammonia (as N) Nitrate -i- Nitrite (as N) Heavy Metals (/;q/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 (//g/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/l) TDS (mg/l) 1 25 10 12.5 5 <0.05 <0.1 <0.05 <0.1 <0.05 <0.05 <0.05 <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 3 50 365 650 5,500 8 400 1 20 50 25 50 1 8,500 15 30 2,500 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 8.1 <10 <0.50 <100 10.3 <15 14 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 <5.0 <10 <0.50 <100 8.68 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 9.5 <10 <0.50 <100 8.32 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 13.4 <10 <0.50 <100 11.5 <15 45 1 15 1 7.5 1 1 *1.3 (-H/-0.5) 1 *1.4(-H/-0.4) j *0.9 (-K/-0.4) | *1.1 (-H/-0.4) 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 <1.0 <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 <1.0 <1.0 1 6.5-8.5 4 2 7.41 0.3 6 1,990 3,100 7.32 0.3 7 2,000 3,030 7.38 0.3 6 2,020 3,140 7.32 0.3 7 1,980 3,130 General Inorganics Listed In Part I.E.I .(c)(2)(ii) I Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) <1.0 396 460 10.5 100 337 48.1 45.3 <1.0 373 530 10.2 95 326 48 47.4 <1.0 362 550 10.6 96.4 346 48.2 49.4 <1.0 384 512 9.8 95.4 346 47.8 47.7 Note: ' The gross alpha counting variance exceeded 20% Not Sampled during 2nd Quarter (June) 2007. This well was sampled This study requirsd undisturbed water in this well for at least 2 months in July 2007 as part of a hydrogeologic study performed by the University of Utah, prior to sampling. MW-3 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 Niclcel 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 Xvlenes(total) Others Field pH (S.U.) Fluoride (mg/l) Chloride (mqJI) Sulfate (mg/l) TDS (mg/l) ieneral Inorganics Listec Carbonate (mq/I) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meg/L) GWQS GWCL (Class III) Parameters Listed in II "'1st qtr. 2008 Jan - March 3/19/2008 Table 2 2nd qtr. 2008 April - June 5/28/2008 "'3rd qtr. 2008 July - Sept. 8/12/2008 4th qtr. 2008 Oct. - Dec. 11/3/2008 "'1st qtr. 2009 Jan - March 2/9/2009 2nd qtr. 2009 April - June 5/28/2009 "'3rd qtr. 2009 July - Sept. 8/18/2009 II 25 10 125 5 <0.05 0.18 <0.1 <0.23 <0.05 0.3 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 1,330 13.8 0.9 35.6 <5.0 <0.50 0.52 <25 <10 <1C <30 <1.0 810 <0.50 <10 <20 20.1 <10 0.86 <100 37.3 <15 19 <5.0 <0.50 0.73 <25 <10 <10 <30 <1.0 960 <0.50 <10 <20 19.2 <10 0.85 <100 28.5 <15 21 <5.0 <0.50 0.55 <25 <10 <10 <46 <1.0 813 <0.50 <10 <20 26.5 <10 0.93 <100 23.8 <15 37 468 20.7 0.89 27.7 <5.0 <0.50 0.53 <25 <10 <10 <30 <1.0 292 <0.50 <10 <20 34.2 <10 0.82 <100 18.6 <15 42 397 24.5 0.78 22.2 15 1 7.5 *1.1 (+/-0.4) •-0.1 (+/-0.6) 1 1 •1.2(+/-0.5) 1 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 6.5 <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <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 3.8 <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <2.0 1 6.5 - 8.5 4 2 in Parti.E.I.(c)(2l(i ) 6.71 0.5 64 3,340 4,800 <1.0 364 846 22.2 247 488 77.3 82 6.97 0.6 59 3,340 5,220 6.63 0.5 68 3,420 5,250 1 <1.0 311 836 23 249 484 76.4 81.6 <1.0 302 780 23.1 243 462 78.1 77.6 Note. Concentraficxis in bold exceed the GWQS Concentrations shaded exceed the GWCL (a) ^ Quarterly accelerated monitoring event Nol Sampled during 2nd Quarter (June) 2007. This well was sampled in July 2007 as part of a hydrogeologic sludy performed by the University of Utah. This study required undisturbed wiater in thiswell for at least 2 months prior to sampling. MW-3A 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 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/l) TDS (mg/l) General Inorganics Liste Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (miVO Calcium (mg/l) Total anions (meg/L) Total cations (meg/L) GWQS GWCL (Class III) Parameters Listed in 1 1st qtr. 2008 Jan - March Table 2 2nd qtr. 2008 April - June 5/28/2008 3rd qtr. 2008 July - Sept. 8/12/2008 4th qtr. 2008 Oct. - Dec. 11/3/2008 1st qtr. 2009 Jan - March 2/9/2009 2nd qtr. 2009 April - June 5/28/2009 3rd qtr. 2009 July - Sept. 8/18/2009 25 10 12.5 5 . yi "«. ^-ii m -- '-jiBH <0.05 0.91 •-:•.• . ; at %. <0.1 1.33 <0.05 1.5 <0.05 1.2 <0.05 1.2 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 iaJ.-iSkLs- -'^m m -x! •m^: ^W'mx i m My^ WV:«-- ^ •;: ' '-.nS ' fi,. . .•^f' • '•??SS>!^- •••• ••.#.• fe -W. "a ":V, =-*^* .^^E'..--Jll^-. m^^m.. . ^; • 'i!, 1 'SB- it**'" •' BK55K' •-..~^,- • .^?" <5.0 0.77 0.76 <25 <10 <10 <30 <1.0 64 <0.50 <10 <20 73.4 <10 0.9 <100 ik- ,A22.4 a <15 34 <5.0 =?•;• • ••2:04' *.* 2.14 <25 <10 <10 <30 <i;o 263 <0.50 <10 21 93.4 <10 0.99 <100 .i«i-i9 .a, <15 72 <5.0 1.81 1.56 <25 <10 <10 <46 <1.0 189 <0.50 <10 <20 89 <10 0.98 <100 .si, 17.9. .. <15 85 <5.0 «!• 2mt.m 3.34 <25 <10 <10 <30 <1.0 480 <0.50 <10 29 -: 107 <10 » •m^2 *^ <100 ,16.5 .:t <15 105 <5.0 ligf 2.59jP 5.1B' <25 12 <10 <30 <1.0 7,060: <0.50 .<10 44 ' 702" <10 •ial.11.*:;. <100 .-Ji-17 ^.:•.-•„ <15 169 <5:o •^=a«rl,.2!06 M 2.31 <25 12 <10 <30 <1.0 356 <0.50 <10 22 :- -90.4 ••-• <10 0.83 <100 17, -;-.-. <15 110 1 15 7.5 •• • >*, •1.1 (+/-0.4) ^^ •« -t '-0.1 (+/-0.6) •0.9 (+/-0.3) •2.8 (+/-0.9) 2.2(+/-0.5) 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 If rj. -? .:•• ,!•*; K - m^M »-^i,r- : a£i*. ^ ^-'« ' t\ :. '.S^rj Sii^...S, •• tp; ^ "l!).;^ _. ^.|t •ii^ .-•-•. :;£ i» '1«P« <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 ff?«m- • 'i^B^' •:fm im- r--'\mmmit ;•?" "" id.. .i: MHK --iC '-' ,f-M.'- *." <2.0 -J r m- * <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 <1.0 <1.0 1 6.5 - 8.5 4 d in Part .E.1.(c)(2)(i t: - im^^m ••W^^W- ' ; ^. :m. »-*».^.-. 1 K"' "^'k ) m >5 'i & - ^m.' -M > .^.,.,^ , j. . ^•.v» - 3 .y::iK- -. 7.30 1 61 3,550 5,070 <1.0 384 827 28.6 306 496 81.9 86.6 yfc •:*. - -i0'- M it :i i-^im-- •m- mm m • •.^'^:- \^' w-m--'^^.. ^•^~:-i??m^^^. mm-'^m ^ 6.85 1.5 56 3,570 5,600 <1.0 287 811 28.6 310 498 80.8 86.4 6.76 1.4 49 3,730 5,690 <1.0 265 761 28.6 320 481 83.6 84.1 6.72 1.6 60 3,640 5,660 . <1.0 360 674 28.1 303 436 82.7 76.8 6.90 1.4 57 3,840 5,760 <1.0 305 764 28.6 308 486 86.6 83.6 Note: Concentrations in bold exceed the GWQS Concentrations shaded exceed the GWCL _ _^ Not Sampleci'during Zii'd QulSer (June) 2007. "this well was sampled inJuly 200733 part of' wat^r in these wells for at leas^ 2 months prior to sampling. Nol.SSnioledas required- ._J||ta»a^''''-'^I r- .iJ^M^MS: a hydrogeologic study, performed by theXlniversity of Utah^This study required ur>disturt)edf'" MW-5 Contaminant GWQS GWCL (Class II) 1 "'1st qtr. 2008 Jan - March 3/18/2008 2nd qtr. 2008 /\pril - June 6/18/2008 "'3rd qtr. 2008 July - Sept. 8/11/2008 4th qtr. 2008 Oct. - Dec. 11/3/2008 "'1st qtr. 2009 Jan - March 2/4/2009 2nd qtr. 2009 fif>r'\\ • June 5/16/2009 "'3rd qtr. 2009 July - Sept. 8/25/2009 Parameters Listed in Table 2 1 Nutrients (mg/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 (ug/L) Acetone Benzene 2-Butanone (tVIEK) Carton Tetrachloride Chloroform Chloromethane Dichloromethane 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 Listf Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) [Total cations (meq/L) 25 10 6.25 2.5 0.51 <0.05 0.36 0.08 0.3 <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 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 <25 <10 <10 84 <1.0 258 <c0.50 <10 <20 <5.0 <10 <0.50 <100 <0.30 <15 <10 298 <5.0 <0.50 <0.50 • <25 <10 <10 64 <1.0 - 230 <0.50 <10 <20 <5.0 <10 <0.50 <100 <0.30 <15 <10 154 <5.0 <0.50 <0.50 <25 <10 <10 80 <1.0 249 <0.50 <10 <20 <5.0 <10 <0.50 <100 <0.30 <15 <10 257 15 1 3.75 1 1 *1.2(+/-0.4) 1 1 *0.4(+/-0.3) I I *0.6 (-f^/-0.3) I 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 8.6 <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 8.5 <1.0 <1.0 - 4.2 <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 11 <1.0 <1.0 6.2 II 6.5-8.5 4 1 1^ 7.65 0.9 50 1,090 1,900 1 i 7.78 ;•:.-. 1 ,.;. . 47 1,170 1,980 .J: 1 7.73 -1 iv 44 1,130 2,000 ;d in Part I.E.I.(c)(2) <1.0 357 503 7.5 38 135 30 32 <1.0 388 521 7.7 39.2 143 31.9 33.2 <1.0 383 467 7 38 130 31.1 30.1 0.9 Note: Concentrations shaded exceed the GWCL (a) = Quarterly accelerated monitoring event Not Sampled during 2nd Quarter (June) 2007. This well was sarripled in undisturt)^ water in this vrell for at least 2mdnth's'pric5rto samplif>g. July 2007 as part of a hydrogeologic study performed by the University bf Utah. .TTiis study required. '•-fi^K-'.^'-ti^'-' MW-11 Contaminant Nutrients (mg/L) Ammonia (as N) Nitrate -i- 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 (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/l) TDS (mg/l) General Inorganics Liste Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) GWQS GWCL (Class II) 1 1st qtr. 2008 Jan - March 3/18/2008 2nd qtr. 2008 April - June 6/16/2008 3rd qtr. 2008 July - Sept. 8/5/2008 4th qtr. 2008 Oct. - Dec. 11/10/2008 1st qtr. 2009 Jan - March 2/16/2009 2nd qtr. 2009 April - June 5/17/2009 3rd qtr. 2009 July - Sept. 8/31/2009 Parameters Listed in Table 2 1 1 25 10 .6.25 2.5 0.59 <0.1 0.63 <0.05 0.6 0.05 0.54 <0.05 0.67 <0.05 0.47 <0.1 0.62 <0.1 li 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 25 182.5 325 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 <10 206 <1.0 70 <0.50 <10 <20 <5.0 <10 <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 <10 <0.50 <100 <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 <5.0 <0.50 <0.50 <25 <10 <10 77 <1.0 67 <0.50 <10 <20 <5.0 <10 <0.50 <100 <0.30 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 91 <1.0 79 <0.50 <10 <20 <5.0 <10 <0.50 <100 0.33 <15 <10 II 15 3.75 •0.9 (+/- 0.3) *1.2(-i-/-0.5) •1.0(+/-0.4) •0.1 (+/-0.3) •0.6 (+/-0.4) •0.8 {+/-0.4) '0.2 (+/-0.6) II II 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 <2.0 <1.0 <1.0 <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 •<i.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 <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 3.2 <1.0 <1.0 <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 II 6.5-8.5 4 d in Part l.E 1 1.(C)(2)(ii) 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 8.03 0.6 26 1,060 1,850 6 366 548 5.9 10 36 29 26.6 8.03 0.6 26 1,090 1,840 7 374 602 6.1 11.2 41.9 29.9 29.4 Note: (a) = Monthly accelerated monitoring event ' The gross alpha counting variance exceeded 20% I Not Sampled during 2nd Quarter {June) 2007. This well was sampled in July 2007 as part of a hydrogeologic study perfomied by the University of Utah. This study required.undisturbed .water in this well for at least 2 months prior to sampling. -^ ^- , •. ^•. MW-12 Contaminant GWQS GWCL (Class III) 1 "'1st qtr. 2008 Jan - March 3/18/2008 2nd qtr. 2008 April - June .6/17/2008 "'3rd qtr. 2008 July - Sept. 8/11/2008 4th qtr. 2008 Oct. - Dec. 11/11/2008 "'ist qtr. 2009 Jan - March 2/4/2009 2nd qtr. 2009 April - June 5/16/2009 "'3rd qtr. 2009 July - Sept. 8/17/2009 1 parameters Listed in Table 2 1 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 Thallium Tin Uranium Vanadium Zinc Radioloqics (pCi/L) Gross Alpha VOC (uq/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 (mq/I) Sulfate (mg/l) TDS (mq/I) 1 25 10 12.5 5 <0.05 0.1 <0.05 0.11 <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 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 19 178 <5.0 <0.50 <0.50 <25 <10 <10 35 <1.0 16 <0.50 <10 <20 10.8 <10 <0.50 <100 16.9 <15 <10 17 18 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 33 <0.50 <10 <20 10.2 <10 <0.50 <100 16.7 <15 <10 35 172 15 1 75 1 1 *1.2(-i-/-0.4) 1 1 •0.3(+/-0.3) 1 1 •1.8(+/-0.5) I 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 <1.0 <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 <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 3.4 <1.0 <1.0 3.2 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 7.20 0.3 51 2,350 3,820 General Inorganics Listed in Part I.E.I.(c)(2) || Carbonate (mg/l) Bicarbonate (mq/I) Sodium (mg/l) Potassium (mq/I) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) <1.0 399 300 13 207 525 55.3 56.6 <1.0 430 308 12.9 219 544 57.4 58.9 <1.0 445 273 12.8 190 448 54.8 50.2 Note: Concentrations shaded exceed the GWCL (a) = Quarterly accelerated moniloring event Nol Sampled during 2nd Quarter (June) 2007. Tnis well was sampled in July 2007 as part of a hydrogeotogic study pertormed by ttie University o< Utah. Tliis study required undisturbed water in this wet! fc^r at least 2 months prior to sanpling. MW-14 Contaminant GWQS Parameters Listed in Table 2 Nutrients (mg/L) Ammonia (as N) Nitrate + Nitrite (as N) Heavy Metals (uq/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manqanese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radiologics (pCi/L) Gross Alpha VOC (uq/L) Acetone Benzene 2-Butanone (MEK) Carbon Tetrachloride Chlorofomi Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xylenes(total) Others Field pH (S.U.) Fluoride (mg/l) Chloride (mg/l) Sulfate (mg/l) TDS (mg/l) GWCL (Class III) MW-14 (Quarterly Monitorinq) 1 January "'Monthly Accl. 1/20/2009 1st qtr. 2009 Jan - March 2/4/2009 March "'Monthly Accl. 3/18/2009 April '•"Monthly Accl. 4/22/2009 2nd qtr. 2009 April - June 5/16/2009 June "'Monthly Accl. 6/17/2009 July "'Monthly Accl. 7/29/2009 3rd qtr. 2009 July - Sept. 8/19/2009 September "'Monthly Accl. 9/9/2009 1 25 10 12.5 5 <0.05 <0.1 <0.05 <0.1 0.11 <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 2,060 68.9 <5.0 <0.50 1.19 <25 <10 <10 <30 <1.0 2,790 <0.50 <10 <20 5 <10 <0.50 <100 60.5 <15 51 2,380 62 <5.0 <0.50 0.93 <25 <10 <10 <30 <1.0 1,940 <0.50 <10 <20 <5.0 <10 <0.50 <100 60.5 <15 <10 2,170 63.4 2,330 70.1 <5.0 <0.50 1.02 <25 <10 <10 <30 <1.0 2,740 <0.50 <10 <20 <5.0 <10 <0.50 <100 61.7 <15 11 2,060 60.1 1 15 7.5 1 1 •1.2(+/-0.4) 1 i 1 •1.2(+/-0.4) I I I •1.9(+/-0.6) | || 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 <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 II 6.5 - 8.5 4 General Inorganics Listed in Part Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) 2 I.E.I.(c)(2 6.86 0.2 16 2,150 3,670 7.20 0.2 18 2.140 3,630 7.10 0.2 19 1,820 3,400 (ii) II <1.0 457 323 11 152 517 52.7 526 <1 0 468 331 11.8 142 473 52.7 50 <1.0 458 323 10.6 125 483 45.8 48.8 . Noie. Concentrations in bold exceed the GWQS Concentrations shaded exceed the GWCL (a) = Quarterly accelerated monitoring event ' The gross alpha counting variance exceeded 20% Not Sampled during 2nd Quartef (June) 2007. This weH was sampled in July 2007 as part of a hydrogeologic study performed by the University of Utah. This study required undisturt>ed water in this well for at least 2 months prior to sampling. Not Sarnptec) during the Juiy 2D07 acceterated manitOftnff event as required yj] MW-15 Contaminant GWQS GWCL (Class III) 1 "•"1st qtr. 2008 Jan - March 3/11/2008 2nd qtr. 2008 April - June 6/18/2008 "'3rd qtr. 2008 July - Sept. 8/12/2008 4th qtr. 2008 Oct. - Dec. 11/11/2008 "'1st qtr. 2009 Jan - March 2/9/2009 2nd qtr. 2009 April - June 5/16/2009 "'3rd qtr. 2009 July - Sept. 8/19/2009 Parameters Listed in Table 2 1 Nutrients (mq/L) Ammonia (as N) Nitrate -i- 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 Radiologics (pCi/L) Gross Alpha VOC (uq/L) Acetone Benzene 2-Butanone (MEK) Carbon Tetrachloride Chloroform Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xvlenes(tolal) Others Field pH (S.U.) Fluoride (mg/l) Chloride (mg/l) Sulfate (mg/l) TDS (mg/l) General Inorganics Liste Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) 25 10 12.5 5 <0.05 0.15 <0.05 0.16 <0 05 <oi 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 2,500 773 48.3 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 706 <10 <0.50 <100 43.9 <15 <10 776 45.7 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 777 <10 <0.50 <100 47 <15 <10 770 45.7 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 110 <10 <0.50 <100 45.6 <15 20 742 44.9 15 1 75 1 1 •M (-f-/-0.4) 1 1 -0.1 (+/-0.3) | | "1.0 (+/-0.4) | 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 <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 ) 6.5-8.5 4 2 6.99 02 37 2,400 3,680 7.25 0.2 37 2,430 3,830 713 0.2 38 2,290 3,850 din Part I.E.1.(c)(2)( 1 <1.0 415 520 10.4 158 444 579 58.1 <1.0 429 528 10.3 164 451 587 59.2 <1.0 441 465 9.7 148 393 56 52.2 Note: Concentrations in bold exceed the GWQS Concentrations shaded exceed the GWCL (a) = Quarterly accelerated monitoring event Not Sampled during 2nd Quarter (June) 2007. This weil was sampled in July 2007 as part of a hydrogeologic study performed by the University of Utah. This study required undisturOed water in this well for at least 2 months prior to sampling. MW-17 Contaminant GWQS GWCL (Class III) "'1st qtr. 2008 Jan - March 3/12/2008 2nd qtr. 2008 April - June 5/28/2008 "'3rd qtr. 2008 July - Sept. 8/12/2008 4tfi qtr. 2008 Oct. - Dec. 11/12/2008 "'1st qtr. 2009 Jan - March 2/9/2009 2nd qtr. 2009 April - June 5/29/2009 "'3rd qtr. 2009I July - Sept. 8/18/2009 1 Parameters Listed in Table 2 1 Nutrients (mq/L) Ammonia (as N) Nitrate + Nitrite (as N) Heavy Metals (uq/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manqanese Mercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radioloqics (pCi/L) Gross Alpha VOC (uo/L) Acetone Benzene 2-Butanone (MEK) Carbon Tetrachloride Chloroform Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xylenes(total) Others Field pH (S.U.) Fluoride (mq/I) Chloride (mq/I) Sulfate (mq/I) TDS (mq/I) 1 25 10 12.5 5 50 4 5 100 730 1,300 11,000 15 800 2 40 100 50 too 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 <0.05 0.5 • <0.05 0.7 <0.05 0.7 1 1 <0.50 ^•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 ''r <15 <10 >, 0.55 -"*'28.9-;. ' <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 92 <0.50 <10 <20 7.9 <10 0.53 <100 ". 26^ 'V! <15 <10 0.57 m 28:7" •• <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 172 <0.50 <10 <20 9.8 <10 0.69 <100 26.4:j^ <15 <10 0.71 ^fc 27.8 ": 15 1 7.5 1 1 •0.9(+/-0.3) 1 1 •0.5(-i-/-0.3) j | ^1.2 (+/-0.4) 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 <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 1 6.5-8.5 4 2 • 7.29 0.3 32 2,540 4,030 7.10 0.3 32 2,530 3,980 7.20 ;> 0.3 36 2,450 4,020 _ General Inorganics Usted in Part I.E.I.(c)(2). || Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mq/I) Potassium (mq/I) Magnesium (mg/l) Calcium (mq/I) Total anions (meq/L) Total cations (meg/L) <1.0 474 648 12.4 188 386 • 61.6 63.2 <1.0 481 642 12.6 188 385 61.4 62.9 , <1.0 493 615 12.2 176 348 60.1 58.9 Note: Concentrations in bold exceed the GWQS Concentrations shaded exceed the GWCL (a) = Quarterly accelerated nronitoring event * The gross alpha counting variance exceeded 20% MW-18 Contaminant GWQS GWCL (Class 11) 1 "'1st qtr. 2008 Jan - March 3/11/2008 2nd qtr. 2008 April - June 6/4/2008 "'3rd qtr. 2008 July - Sept. 8/12/2008 4th qtr. 2008 Oct. - Dec. 11/4/2008 "'1st qtr. 2009 Jan - March 2/11/2009 2nd qtr. 2009 April - June 5/27/2009 "'3rd qtr. 2009 July - Sept. 8/25/2009 Parameters Listed in Tabie 2 1 Nutrients (mg/L) Ammonia (as N) Nitrate + Nitrite (as N) Heavy Metals (ug/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercurv Molybdenum Nickel Selenium Sifver 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 Xvlenes(total) Others Field pH (S.U.) Fluoride (mq/I) Chloride (mq/I) Sulfate (mg/l) TDS (mq/I) 25 10 6.25 2.5 <0.05 <0.05 <0.1 <0.05 <0.05 <0.1 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 25 182.5 325 2,750 3.75 200 0.5 10 25 12.5 25 0.5 4,250 7.5 15 1,250 154 1.11 42.4 <5.0 <0.50 <0.50 <25 <10 <10 314 <1.0 119 <0.50 <10 <20 <5.0 <10 1.34 <100 44.8 <15 <10 136 1.33 47.4 <5.0 <0.50 <0.50 <25 <10 <10 310 <1.0 125 <0.50 <10 <20 <5.0 <10 1.43 <100 47 <15 <10 121 1.53 39.4 <5.0 <0.50 <0.50 <25 <10 <10 236 <1.0 72 <0.50 <10 <20 <5.0 <10 2.5 <100 47.2 <15 27 104 2.62 41.6 15 1 3.75 1 1 •1.2(+/-0.4) 1 1 *0.4(+/-0.7) | | "1.7 (-(-/-O.?) 1 700 5 4,000 5 70 30 5 100 46 1,000 10,000 175 1 25 1,000 1.25 175 7.5 1.25 25 11.5 250 2,500 <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 1 1 6.5 - 8.5 4 1 7.05 0.2 55 1,870 3,100 6.90 0.2 42 1,880 3,110 6.79 0.2 68 1,930 3,200 General Inorqanics Listed in Part I.E.I.(c)(2) 1 Carbonate (mg/l) Bicarbonate (mq/I) Sodium (mc)/l) Potassium (mg/l) 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 <1.0 449 188 8.7 129 543 49.4 46.1 1 Note: Concentrations in bold exceed the GWQS Concentrations shaded exceed the GWCL (a) = Quarteriy accelerated rrwnitoring event ' The gross alpha counting variance exceeded 20% Not Sampted during 2nd Quarter (June) 2007. This well was sampled in July 2007 as part of a hydrogeologic study performed by the University of Utah, This study required undisturbed water in this well for at least 2 months prior to sampling. MW-19 Contaminant GWQS GWCL (Class 11) 1 "'1st qtr. 2008 Jan - March 3/11/2008 2nd qtr. 2008 April - June 6/4/2008 "'3rd qtr. 2008 July - Sept. 8/13/2008 4th qtr. 2008 Oct. - Dec. 11/4/2008 "'1st qtr. 2009 Jan - March 2/11/2009 2nd qtr. 2009 April -June 5/27/2009 "'3rd qtr. 2009 July - Sept. 8/25/2009 Parameters Listed in Table 2 1 Nutrients (mg/L) Ammonia (as N) Nitrate + Nitrite (as N) Heavy Metals (ug/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manqanese Mercurv Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radioloqics (pCi/L) Gross Alpha VOC (uq/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 (mq/I) Sulfate (mg/l) TDS (mq/I) 1 25 10 6.25 2.5 <0 05 2.44 <0.1 • 2.51: •:' 2.4 <0.05 2.4 2.2 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 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 10.6 .=0:52 .-* 732 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 10.2 <10 <0.50 <100 6.76 <15 <10 136 9.2 <0.50 6.8 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 9.9 <10 <0.50 <100 6.51 <15 <10 9.6 <0.50 6.52 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 10.7 <10 <0.50 <100 6.76 <15 <10 9.1 <0.50 6.46 15 1 3.75 1 1 -1.3 (•!•/-0.4) 1 1 *0.3 (•I-/-0.6) | I *2.1 (+/-0.6) | 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 <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 1 6.5-8.5 4 1 General Inorganics Listed in Part I.E.1.(c)(2 Carbonate (mg/l) Bicarbonate (mq/I) Sodium (mg/l) Potassium (mq/I) Maqnesium (mq/I) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) ,« 1.1 -Wi 7.63 •;t::^1.1 -iJ 28 507 977 K.k. i.lat.- 7.38 ..a. 1.1 .J:- 26 446 954 :-r 1.1 .... 7.33 .1; 34 510 989 •i 1 .air^ II <1.0 257 113 4.32 46.2 140 15.8 15.8 <1.0 265 110 4.42 44.6 139 146 15.5 <1.0 270 110 4 47 137 16.2 ,15.6 Note: Concentrations shaded exceed the GWCL (a) = Quarteriy accfJlerated nronitoring event N6lSarTptedduring2ndOuarter(Jun6)2007,'This well was sampfed in July 2007 as partofahydrogeptogicstudy performed by the University of Utah.. This study required;. undisturbed waler in this vrell lor at least 2 rix)nths prior to sampling. ••..;. _ •. , '•' MW-20 Contaminant GWQS Parameters Listed 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 (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/l) TDS (mg/l) GWCL (Class II) MW-20 (Quarterly Monitorinq) 1st qtr. 2008 Jan - March 2nd qtr. 2008 April - June 6/17/2008 n Table 2 3rd qtr. 2008 July - Sept 8/11/2008 4th qtr. 2008 Oct. - Dec. 11/12/2008 1st qtr. 2009 Jan - March 2/2/2009 2nd qtr. 2009 /^ril - June 5/14/2009 3rd qtr. 2009 July - Sept. 8/31/2009 25 10 6.25 25 0.69 2.52 0.5 4.16 0.13 5.26 0.23 4.9 0.36 5.4 0.47 51 50 4 5 100 730 1,300 11,000 15 800 2 40 100 50 100 2 17,000 30 60 5,000 125 1 1.25 25 182.5 325 2,750 3.75 200 0.5 10 25 12.5 25 0.5 4,250 75 15 1,250 •: :. • " . - ;. •: •••-• ''•'''' - • -"-. <5.0 <0.50 <0.50 <25 <10 <10 <50 <1.0 77 <0.50 <10 <20 <5.0 <10 0.54 <100 34.6 <15 41 <5.0 <0.50 <0.50 <25 <10 <10 <50 <1.0 60 <0.50 11 <20 <5.0 <10 <0.50 <100 29.8 <15 90 <5.0 <0.50 1.05 <25 <10 <10 <50 <1.0 29 <0.50 11 <20 <5.0 <10 1.14 19.8 <15 52 <5.0 <0.50 1.05 <25 <10 <10 38 <1.0 38 <0.50 <10 <20 <5.0 <10 <0.50 <100 17.9 <15 75 <5.0 <0.50 <0.50 <25 <10 <10 <50 <1.0 42 <0.50 <10 <20 <5.0 <10 <0.50 . <100 15.4 <15 32 <5.0 <0.50 <0.50 <25 <10 <10 <50 <1.0 42 <0.50 <10 <20 <5.0 <10 <0.50 <100 16 <15 40 1 15 3.75 1 1 *2.1 (+/-a5) *1.3(+/-a5) •0.4 1+/-Q.3) *1.4(4-/-0.4) *0.6(+/-0.4) *0.5(+/-0.6) 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 ~-If' . rj..;; •'.•':>-• <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <20 <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 <10 <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 1 6.5-8.5 4 General Inorganics Listed in Part Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) 1 •>': 7.35 0.2 67 3,880 5,570 •E.1.(c)(2)(ii) <1.0 384 1,480 61.9 108 395 89.1 94.4 7.37 0.2 57 3,910 5,650 <1.0 386 1,430 50.3 110 388 89.7 91.8 765 0.3 64 3,720 5,690 <1.0 317 1,420 53.7 103 374 89.9 90.3 7.58 0.3 59 3,600 5,780 <1.0 287 1,200 44.8 103 361 81.7 79.7 7.72 0.3 60 3,910 5,820 <1.0 280 1,260 45.6 96 339 88.1 81 7.63 0.3 62 3,760 5,640 <1.0 281 1,360 49.8 99.3 358 84.8 86.5 Note: Concentrations in bold exceed the GWQS. Concentrations shaded exceed the GWCL . Not Sanptad during the 1 st Quarter 2008 monitoring event as requtred. MW-22 Contaminant GWQS GWCL (Class III) MW-22 (Quarterly Monitorinq) 1st qtr. 2008 Jan - March 2nd qtr. 2008 /^ril - June 6/17/2008 Parameters Listed in Table 2 Nutrients (mg/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 Thallium Tin Uranium Vanadium Zinc Radiologics (pCi/L) Gross Alpha 1 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/l) TDS (mg/l) 3rd qtr. 2008 July - Sept. 8/11/2008 4th qtr. 2008 Oct. - Dec. . 11/12/2008 1st qtr. 2009 Jan - March 2/2/2009 2nd qtr. 2009 April - June 5/14/2009 25 10 12.5 5 -.••: • 0.36 3.50 0.2 3.83 0.19 3.91 0.62 3.6 0.54 3.4 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- „ .-.^ ••- : <5.0 2.27 92.7 <25 266 14 <50 <1.0 31,100 <0.50 789 778 13.2 <10 1.15 <100 52.4 <15 458 <5.0 2.69 87.8 <25 264 <10 <50 <1.0 32,500 <0.50 233 135 9.8 <10 1.04 <100 46.7 <15 524 <5.0 2.5 87.6 <25 312 11 34 <1.0 32,500 <0.50 432 140 11.9 <10 1.23 <100 48.8 <15 538 <5.0 3.17 94.6 <25 293 19 <30 1.2 33,300 <0.50 576 744 12.6 <10 1.02 <100 49.7 <15 591 <5.0 2.45 91.6 <25 291 15 40 <1.0 29,700 <0.50 620 131 15.3 <10 1.16 . <100 47 <15 525 15 1 75 1 '•'-.. 1 5.4(+/-0.8) •3.1 (+/-0.7) •2.9 (+/-0.6) 5.5(+/-0.7) •3.5(+/-0.7) 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 •. .- •L <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 <1.0 <1.0 <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 6.5-8.5 4 2 :i 6.2 2.8 64 5,130 7,110 6.27 2.9 48 5,870 7,620 8.26 2.9 64 5,520 7,900 6.23 3.1 54 5,240 7,920 6.33 2.9 58 5,380 7,800 General Inorganics Listed in Part I.E.I .(c)(2)(ii) Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) •. . <1.0 436 260 26.2 975 483 116 116 <1.0 489 259 24.9 1,080 499 132 126 <1.0 482 262 25 1,050 484 125 123 <1.0 467 233 22.2 965 418 119 111 <1.0 480 258 23.5 994 432 122 115 3rd qtr 2009 July - Sept. 8/31/2009 0.72 3.4 <5.0 2.31 87.3 <25 283 <10 <30 <1.0 32,200 <0.50 587 747 10.8 <10 1.22 <100 51.7 <15 501 *3.0(+/-0.9) <20 <1.0 <20 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 7.04 2.8 62 5,380 7,430 <1.0 501 243 24.5 963 454 122 113 Note: Concentrations in bold exceed the GWQS. Concentrations shaded exceed the GWCL. Not Sampled dur^ the 1st Quarter 2006 monitoring event as required MW-23 Contaminant GWQS GWCL TBA 1 1st qtr. 2008 Jan - March 3/18/2008 Parameters Listed in Table 2 Nutrients (mg/L) Ammonia (as N) Nitrate + Nitrite (as N) Heavy Metals (ug/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Ivlercury Molybdenum Nickel Selenium Silver Thallium Tin Uranium Vanadium Zinc Radiologics (pCi/L) Gross Alpha VOC (uq/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/l) TDS (mg/l) 2nd qtr. 2008 April - June 6/9/2008 3rd qtr. 2008 July - Sept. 8/5/2008 . 4th qtr. 2008 Oct. - Dec. 11/5/2008 1st qtr. 2009 Jan - March 2/11/2009 2nd qtr. 2009 April - June 5/27/2009 3rd qtr 2009 July - Sept. 8/18/2009 1 25 10 <0.05 0.3 0.16 0.2 <0.1 0.27 0.09 0.3 <0.05 0.3 <0.05 0.3 <0.05 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 <5.0 <0.50 <0 50 <25 <10 <10 <30 <1.0 372 <0.50 <10 29 <5.0 <10 1.27 <100 21.2 <15 . 33 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 289 <0.50 <10 29 <5.0 <10 1.06 <100 18.6 <15 29 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 188 <0.50 <10 <20 <5.0 <10 0.82 <100 146 <15 26 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 453 <0.50 <10 23 <5.0 <10 1.40 <100 18.1 <15 38 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 526 <0.50 <10 22 <5.0 <10 <100 19.4 <15 50 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 44 <0.50 <10 <20 <5.0 <10 <0.50 <100 11.8 <15 29 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 354 <0.50 <10 <20 <5.0 <10 1.43 <100 175 <15 36 1 15 1 1 2.6(0.5+/-) •1.9(+/-0.5) •2.5 Ul- 0.5) •1.1 (+/-0.7) •3.8 (4-/-0.8) *2.0 (+/-0.8) 4.3 (•(•/-0.7) 1 700 5 4,000 5 70 30 5 100 46 1,000 10,000 6.5-8.5 4 <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 <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 1 7.49 0.2 7 2,410 3,550 7.05 0.2. 6 2,180 3,540 6.80 0.2 6 2,270 3,640 6.71 0.2 5 2,380 3,630 6.74 0.2 7 2,310 3,610 6.97 0.2 9 2,400 3,590 6.90 0.2 5.6 2,430 3,660 General Inorganics Listed in Part I.E.I .(c)i 1 Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) <1.0 275 384 10.9 146 444 55 51.2 <1.0 306 400 10.4 159 494 <1.0 260 396 10.5 156 484 51.7 54.5 <1.0 227 360 10.3 146 444 53.4 50.1 <1.0 209 364 13 156 435 51.7 50.7 <1.0 • 321 402 9.4 148 437 55.4 51.8 <1.0 235 368 10.4 151 462 54.6 51.7 Note: • The gross alpha counting variance exceeded 20%. MW-24 Contaminant GWQS GWCL TBA 1 "'1st qtr. 2008 Jan - March 3/12/2008 Parameters Listed in Table 2 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 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 Xylenes(total) Others Field pH (S.U.) Fluoride (mg/l) Chloride (mg/l) Sulfate (mg/l) TDS (mg/l) 2nd qtr. 2008 April - June 5/29/2008 3rd qtr. 2008 July - Sept. 8/7/2008 4th qtr. 2008 Oct. - Dec. 11/11/2008 1st qtr. 2009 Jan - March 2/5/2009 2nd qtr. 2009 April - June 5/30/2009 3rd qtr. 2009 July - Sept. 8/24/2009 1 25 10 5.58 <oi 0.32 012 0.6 0.09 0.41 0.16 0.34 ai 0.33 at 0.68 <ai 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 <10 <10 3,580 <1.0 1,660 <0.50 <10 <20 <5.0 <10 <0.50 <100 0.84 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 2,740 <1.0 2,330 <0.50 <10 <20 <5.0 <10 <0.50 <100 0.77 <15 17 <5.0 <0.50 0.88 <25 <10 <10 1,360 <1.0 2,730 <0.50 <10 27 <5.0 <10 0.65 <100 0.67 <15 32 <5.0 <0.50 091 <25 <10 <10 1,520 <1.0 3,630 <0.50 <10 27 <5.0 <10 0.53 <100 0.50 <15 24 <5.0 <0.50 <0.50 <25 <10 <10 1,590 <1.0 4,780 <0.50 <10 <20 11.4 <10 <0.50 <100 1.07 <15 37 <5.0 <0.50 0.59 <25 <10 <10 1,110 <1.0 3,480 <0.50 <10 <20 <5.0 <10 <0.50 <100 1.04 <15 30 <5.0 <0.50 1.48 <25 <10 <10 926 <1.0 3,860 <0.50 <10 <20 <5.0 <10 0.62 • <100 1 03 <15 26 1 15 1 1 -0.2(03+/-) *09 (+/- 0.3) •1.2 (0.4+/-) •0.5 (+/-0.3) •1.4 (+/-0.4) •1.2 (+/-0.4) -0.9 (+/-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 <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 <1.0 <1.0 <20 <1.0 <20 <1.0 <i.o • <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 1 6.5-8.5 4 6.91 0.2 44 2,560 4,090 7.14 ai 45 2,770 4,030 6.75 0.1 39 2,730 4,270 6.90 Ol 43 2,800 4,170 6.83 ai 44 2,630 4,310 6.59 ai 44 2,670 4,220 6.70 at 37 2,740 4,210 General Inorganics Listed in Part I.E.1.(c)(2)(ii) II Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total 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 62 624 <1.0 270 514 13 181 492 62.4 62.2 <1.0 225 517 13.2 182 494 63.2 62.5 <1.0 231 538 14 164 466 59.9 60.5 <1.0 233 489 12.2 164 441 60.7 57.1 <1.0 142 518 131 ^ 177 503 60.4 626 Note: Concentrations shaded exceed the GWCL * The gross alpha counting variance 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 4th qtr. 2008 Oct. - Dec. 11/10/2008 1st qtr. 2009 Jan - March 2/3/2009 2nd qtr. 2009 April - June 5/13/2009 3rd qtr. 2009 July - Sept. • 8/24/2009 Parameters Listed in Table 2 1 Nutrients (mg/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 VOCXug/L) Acetone Benzene 2-Butanone (MEK) Cartoon Tetrachloride Chloroform Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xylenes(total) Others. Field pH (S.U.) Fluoride (mg/l) Chloride (mg/l) Sulfate (mg/l) TDS (mg/l) 1 25 10 0.49 <1.0 0.67 <0.1 0.4 <0.05 0.39 <0.05 0.36 0.1 a5 <0.1 051 <0.1 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 1.23 <25 10 <10 .=30 <1.0 1,610 <0.50 11 <20 <5.0 <10 0.95 <100 5.94 <15 <10 <5.0 <0.50 1.19 <25 10 <10 <30 <1.0 7,670 <0.50 11 <20 <5.0 <10 0.93 <100 6.08 52 <10 <5.0 <0.50 1.27 <25 <10 <10 <30 <1.0 7,650 <0.50 11 <20 <5.0 <10 0.86 <100 5.56 <15 <10 <5.0 <0.50 1 20 <25 11 <10 <30 <1.0 7,670 <0.50 11 <20 <5.0 <10 0.89 <100 5.35 <15 <10 <5.0 <0.50 1.37 <25 <10 <10 <30 1.7 7,640 <a5o 11 <20 <5.0 <10 0.92 <100 5.87 <15 30 <5.0 <0.50 1.24 <25 <10 <10 <30 <1.0 7,590 <0.50 11 <20' <5.0 <10 0.9 <100 5.7 <15 <10 <5.0 <0.50 1.34 <25 <10 <10 <30 <1.0 7,600- <0.50 12 <20 <5.0 <10 0.96 <100 6.02 <15 <10 1 15 1 1*1.9(0.4+/-) *1.4(+/-a5) •1.2(0.4+/-) •0.5 (+/-0.3) *1.3(+/-0.4) •0.8 (+/-0.4) •0.7 (+/-0.3) 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 <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 <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 1 6.5-8.5 4 7.69 0.3 32 1,750 2,710 7.30 as 25 1,610 2,770 6.85 0.3 28 1,710 2,700 721 0.3 30 1,800 :-.s: :.-'• 6.88 0.4 31 1,630 2,750 718 0.4 30 1,690 2,710 7.00 0.3 30 1,580 2,740 General Inorganics Listed in Part I.E.I.(c)i 1 Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) <1.0 415 306 9.8 120 353 44.1 41.2 <1.0 381 306 9.48 130 383 40.4 43.4 <1.0 400 310 10 134 391 43 44.3 <1.0 392 321 9.8 129 383 44.7 43.9 <1.0 392 255 8.4 116 331 41.2 37.4 <1.0 399 279 8.5 116 333 42.5 38.5 <1.0 418 310 9.9 121 361 40.6 41.7 Note: Concentrations shaded exceed the GV^CL _ 'TOS wEisirioi sairfjted dtipr^ the 4th QtaHeff 2008 iTYXi'itwing evenhas feqtji^ MW-26 Contaminant GWQS GWCL (Class 111) January "'Monthly Accl. 1/20/2009 1st qtr. 2009 Jan - March 2/2/2009 March "'Monthly Accl. 3/18/2009 Parameters Listed in Table 2 Nutrients (mq/L) Ammonia (as N) Nitrate + Nitrite (as N) Heavv Metals (uq/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 (ug/L) Acetone Benzene 2-Butanone (MEK) Carbon Tetrachloride Chloroform Chloromethane Dichloromethane Naphthalene Tetrahydrofuran (THF) Toluene Xvlenes(total) Others Field pH (S.U.) Fluoride (mq/I) Chloride (mg/l) Sulfate (mg/l) TDS (mq/I) 25 10 12.5 5 ai9 0.3 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 7,040 52.6 <5.0 <0.50 <0.50 <25 <10 <10 513 <1.0 7,370 <0.50 <10 <20 15.5 <10 <0.50 <100 43 <15 20 7,600 58.3 15 1 75 1 1 3.9(+/-a6) 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 <40 <2.0 <40 <2.0 7,200 <2.0 69 <2.0 <2.0 <2.0 <100 <5 0 <100 <5.0 1,600 <5.0 89 <5.0 <2.0 <5.0 <5.0 <20 <1.0 <20 <1.0 7,200 <1.0 37 <1.0 <1.0 <1.0 6.5 - 8.5 4 2 7.06 03 49 1,880 3,260 General Inorqanics Listed in Part I.E.I.(c)(2) Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mq/I) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) <1.0 392 177 9.8 162 484 46.9 45.4 1 April "'Monthly Accl. 4/22/2009 2nd qtr. 2009 April - June 5/18/2009 June "'Monthly Accl. 6/17/2009 July "'Monthly Accl. 7/29/2009 3rd qtr. 2009 July - Sept. 8/19/2009 September "'Monthly Accl. 9/9/2009 1 1 0.05 03 0.22 09 1 1 7,260 27.4 <5.0 <0.50 <0.50 <25 <10 <10 732 <1.0 7,720 <0.50 <10 1 <20 <5.0 <10 <0.50 <100 32.7 <15 11 7,790 54.3 7,760 28.9 <5.0 <0.50 <a50 <25 <10 <10 624 <1.0 7,530 <0.50 <10 <20 1.500 <5.0 1 <10 <0.50 <100 58.3 <15 <10 72.5 1 46(+/-a7) 1 1 1 46(+/-a8) <20 <1.0 <20 <1.0 820 <1.0 33 <1.0 <1.0 <1.0 <20 <1.0 <20 <1.0 2,600 <1.0 47 <1.0 <2.0 <1.0 <1.0 <20 <1.0 <20 <1.0 1,400 <1.0 54 <1.0 <1.0 <1.0 <20 <1 0 <20 <1.0 700 <1.0 76 <1.0 <1.0 <1.0 <20 <10 <20 <1.0 7,200 <1.0 23 <1.0 <2.0 <1.0 <1.0 <20 <1.0 <20 <1.0 2,800 <1.0 22 <1.0 <1.0 <1.0 1 7.18 03 58 1,910 3,340 7.19 03 63 1,520 3,010 1 <1.0 400 202 10 152 448 48 43.9 <1.0 387 176 9.7 131 487 39.8 43.1 Note Concentrations in bold exceed tine GWQS Concentrations stiaded exceed ttie GWCL (a) = Monttiiy accelerated monitoring event * Ttie gross alpha counting variance exceeded 20% MW-27 Contaminant GWQS GWCL TBA 1 1st qtr. 2008 Jan - March 3/17/2008 2nd qtr. 2008 April - June 6/2/2008 3rd qtr. 2008 July-Sept. 8/6/2008 4th qtr. 2008 Oct. - Dec. 11/4/2008 1st qtr. 2009 Jan - March 2/16/2009 2nd qtr. 2009 April - June 5/29/2009 3rd qtr. 2009 July - Sept. 8/18/2009 1 Parameters Listed in Table 2 I 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 Radioloqics (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/l) TDS (mg/l) 1 25 10 <0.05 5.4 <0.05 6.26 <0.1 5.83 <ai 5.91 <0.05 5.7 <0.05 <0.2 <0.05 6.2 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 <10 <10 264 <1.0 <10 <0.50 <10 <20 8.5 <10 <0.50 <100 30.2 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 iai <10 <0.50 <100 37.2 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <a50 <10 <20 las <10 <0.50 <100 37.5 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 11.2 <10 <0.50 <100 37.7 <15 <10 <5.0 <0.50 <0.50 ^25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 11.8 <10 <0.50 <100 30.9 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 11.8 <10 <0.50 <100 37.7 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 10.9 <10 <0.50 <100 29.2 <15 <10 ll 15 1 1 *2.0(a4+/-) -1.9 (a5+/-) -2.1 (0.5+/-) *1.3(+/-a8) -2.4 (+/-0.6) *i.9(+/-a5) 3.1 (+/-0.6) 1 II 700 5 4,000 5 70 30 5 100 46 1,000 10,000 <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 <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 <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 1 6.5-8.5 4 8.10 a8 37 428 1,050 7.55 0.8 39 453 1,030 7.37 a7 40 456 1,100 7.41 a7 28 461 1,120 7.42 a 7 41 442 1,150 6.62 a7 42 414 1,130 7.40 a7 40 480 1,100 General Inorqanics Listed in Part I.E.I.(c)(2 || Cartjonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Tolal 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 4.82 82.2 181 17.9 19.3 <1.0 446 74.1 4 71.2 155 17.2 16.9 <1.0 439 70.3 4.3 73.3 170 18.8 177 Note: Concentrations shaded exceed the GWCL • The gross alpha counting variance exceeded 20%. Not Sampled during 2nd Quarter (June) 2(X)7. This well was sampled in July 2007 as part of a hydrogeologic study performed by the University of Utah. This study required undisturbed water in this well for at least 2 months prior to sampling. MW-28 Contaminant GWQS GWCL TBA 1 1st qtr. 2008 Jan - March 3/12/2008 2nd qtr. 2008 April - June 6/3/2008 Parameters Listed in Table 2 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 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 Xylenes(total) Others Field pH (S.U.) Fluoride (mg/l) Chloride (mg/l) Sulfate (mg/l) TDS (mq/I) 3rd qtr. 2008 July - Sept. 8/6/2008 4th qtr. 2008 Oct. - Dec. 11/5/2008 1st qtr. 2009 Jan - March 2/4/2009 2nd qtr. 2009 April - June 5/12/2008 3rd qtr. 2009 July - Sept. 8/17/2009 1 1 1 25 10 <0.05 01 <0.05 ai8 <ai 018 ai ai 0.05 0.2 ai3 0.2 0.06 02 1 50 4 5 100 730 1,300 11,000 15 800 2 40 100 50 100 2 17,000 30 60 5,000 15.4 <0.50 3.4 <25 29 <10 46 <1.0 7,540 <0.50 <10 23 <5.0 <10 0.84 <100 3.17 <15 34 151 <0.50 3.22 <25 22 <10 46 <1.0 7,560 <0.50 <10 26 <5.0 <10 0.82 <100 3.46 <15 38 14.8 <0.50 3.42 <25 27 <10 42 <1.0 7,530 <0.50 <10 29 <5.0 <10 0.79 <100 3.15 <15 44 147 <0.50 3.87 <25 29 <10 57 <1.0 1,540 <0.50 <10 21 <5.0 <10 0.79 <100 3.55 <15 37 12.1 <0.50 3.66 <25 28 <10 <30 <1.0 7,500 <0.50 <10 <20 108 <10 1.08 <100 3.42 <15 79 14 <0.50 • 3.9 <25 28 <10 42 <1.0 7,470 <0.50 <10 26 56 <10 0.83 <100 3.34 <15 46 13.5 <0.50 3.8 <25 29 <10 38 <1.0 7,490 <0.50 <10 24 <5.0 <10 0.81 <100 3.24 <15 43 1 15 1 1 '1.2(05+/-) -1.3 (0.4+/-) -1.8 (0.5+/-) •0.8 (+/-0.7) *1.7(+/-a5) •0.5 (+/-0.4) 3.2 (+/-0.6) 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 <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 <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 1 6.5-8.5 4 6.88 06 99 2,310 3,640 6.47 0.6 103 2,360 3,580 6.24 06 99 2,340 3,590 6.79 06 99 2,340 3,650 6.38 06 91 2,340 3,730 6.51 06 81 2,410 3,620 6.40 06 100 2,360 3,680 General Inorqanics Listed in Part 1. E. 1. (c)(; 1 Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mq/I) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) <1.0 159 292 11.4 160 490 53.5 50.8 <1.0 149 303 11.1 167 514 54.5 52.9 . <1.0 160 311 11.5 179 546 54 55.8 <1.0 154 312 12 176 546 54 55.6 <1.0 154 286 11 157 479 53.7 49.5 <1.0 156 289 10.2 162 483 55 50.2 <1.0 153 302 11.7 169 526 54.5 53.5 Note: Concentrations shaded exceed the GWCL ' The gross alpha counting variance exceeded 207o. MW-29 Contaminant GWQS GWCL TBA 1st qtr. 2008 Jan - March 3/19/2008 2nd qtr. 2008 April - June 6/3/2008 Parameters Listed in Table 2 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 Thallium Tin Uranium Vanadium iZinc 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/l) TDS (mg/l) 3rd qtr. 2008 July - Sept. 8/5/2008 4th qtr. 2008 Oct. - Dec. 11/5/2008 1st qtr. 2009 Jan - March 2/3/2009 2nd qtr. 2009 /\pril - June 5/13/2009 3rd qtr. 2009 July - Sept 8/24/2009 1 25 10 a8 <0.1 0.53 <0.05 a5 <0.05 0.87 <0.1 0.59 <0.1 0.76 a2 0.8 <ai 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 <10 <10 1,380 <1.0 4,830 <0.50 <10 <20 <5.0 <10 <0.50 <100 11.1 <15 21 <5.0 <0.50 <0.50 <25 <10 <10 1,400 <1.0 5,260 <0.50 <10 <20 <5.0 <10 <0.50 <100 10.3 <15 22 <5.0 <0.50 <0.50 <25 <10 <10 1,720 <1.0 4,980 <0.50 <10 <20 <5.0 <10 <0.50 <100 10.4 <15 22 <5.0 <0.50 <0.50 <25 <10 <10 1,720 <1.0 5,260 <0.50 <10 <20 <5.0 <10 <0.50 <100 10.8 <15 26 <5.0 <0.50 <0.50 <25 <10 <10 1,460 <1.0 5,140 <0.50 <10 <20 <5.0 <10 <0.50 <100 ia7 <15 40 <5.0 <0.50 <0.50 <25 <10 <10 1,380 <1.0 5,330 <0.50 <10 <20 <5.0 <10 <0.50 <100 10.4 <15 12 <5.0 <0.50 <0.50 <25 <10 <10 1,650 <1.0 5,050 <0.50 <10 <20 <50 <10 <0.50 <100 11.1 <15 <10 1 15 i 1 *2.1 (0.5+/-) •1.1 (0.4+/-) •1.8(0.5+/-) •1.1 (+/-0.7) *1.7(+/-0.4) •0.9 (+/-0.5) •1.2(+/-0.4) 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 <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 <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 1 6.5-8.5 4 7.46 a8 39 2,840 4,430 698 0.8 38 2,840 4,190 6.71 as 35 2,810 4,340 6.80 0.8 32 2,920 4,380 6.81 as 31 2,710 4,180 7.09 as 30 2,790 4,260 6.80 as 34 2,720 4,230 General Inorganics Listed in Part I.E.1.(c)i 1 Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) <1.0 345 466 172 206 461 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 <1.0 328 508 18.1 231 518 67.1 67.5 <1.0 331 377 137 228 508 62.7 60.9 <1.0 339 439 152 201 437 64.5 57.9 <1.0 349 501 17.5 220 496 63.4 65.1 Note: Concentrations shaded exceed the GWCL * The gross alpha counting variance exceeded 20%. Not Sampled during 2nd Quarter (June) 2007. This welt was sampled in Juty 2007 as part of a hydrogeolooic study perionmed by the Universily of Utah. This study required uodisturtiad water m \h\s weH tor at least 2 months prior to sampling. MW-30 Contaminant GWQS GWCL TBA 1 1st qtr. 2008 Jan - March 3/19/2008 2nd qtr. 2008 April - June 6/3/2008 3rd qtr. 2008 July - Sept 8/4/2008 4th qtr. 2008 Oct. - Dec. 11/5/2008 1st qtr. 2009 Jan - March 2/3/2009 2nd qtr. 2009 April - June 5/13/2009 3rd qtr. 2009 July - Sept. 8/24/2009 Parameters Listed in 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 (uq/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/l) TDS (mg/l) . 1 25 10 <0.05 .;„.74.8 i <0.05 78.7: <ai ,s, 173 <i • ai2 , .,>.^J5.6 <0.05 :-J,. 15.3w ai4 :v;75.7 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 <10 <10 141 <1.0 45 <0.50 <10 <20 30.5 <10 <0.50 <100 6.79 <15 <10 <5.0. <0.50 <0.50 <25 <10 <10 135 <i.a 49 <0.50 <10 <20 30.5 <10 <0.50 <100 6.86 <15 <10 22.4 77.8 •^i24.7:zA.ii ^=299 -"^^^ 26 73 646 25.5 165 <0.50 <10 709 47.2 <10 1.17 <100 11 23 27 <5.0 <a50 <0.50 <25 <10 <10 129 <1.0 45 <0.50 <10 <20 30.2 <10 <0.50 <100 6.29 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 47 <0.50 <10 <20 32 <10 <0.50 <100 6.67 <15 24 <50 <0.50 <0.50 <25 <10 <10 110 <1.0 44 <0.50 <10 <20 32.3 <10 <0.50 <100 6.52 <15 <10 ai7 iP 20.9&. • <5.0 <0.50 <0.50 <25 <10 <10 118 <1.0 50 <0.50 <10 <20 31.8 <10 <0.50 <100 6.97 <15 <10 15 1 1 *1.0(a3+/-) •0.8 (0.3+/-) •1.0(0.4+/-) •0.7 (+/-0.7) •0.7 (+/-0.3) -0.4 (+/-0.4) •0.8 (+/-0.4) 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 <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 <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 1 6.5-8.5 4 7.90 0.4 118 853 1,610 751 0.4 125 842 1,500 719 •as 121 831 1,640 7.14 0.4 162 799 1,640 7.21 0.4 113 795 1,640 7.27 0.4 122 808 1,560 7.30 a4 • , 118 781 1,530 meral Inorganics Listed in Part I.E.I.(c)(2) 1 Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) <1.0 197 108 7.8 68.9 270 25.4 241 <i:o 180 109 7.29 71.3 274 25.4 24.7 <1.0 190 115 764 75.8 297 25 26.3 <1.0 179 111 7.43 73.3 287 25.3 25.4 <1.0 185 99.7 6.9 67.3 268 23.9 23.4 <1.0 186 104 6.5 651 245 24.4 22.2 <1.0 192 111 7.4 69.1 278 24.3 24.6 Note: Concentrations shaded exceed the GWCL * The gross alpha counting variance exceeded 20%. „ „ .. .,. Not Sampled durihgi2nd Quarter"(June).2607.^ This weif^s sampled in July 2007^as part of eThydrogeologrc'study perfomied by the Universitypf Utah. This study requifed undisturt^ed water in this wiell for at leeist 2 rrxjnths prior to sampling. MW-31 Contaminant GWQS GWCL TBA 1 1st qtr. 2008 Jan - March 3/19/2008 2nd qtr. 2008 April - June 6/3/2008 Parameters Listed in Table 2 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 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/l) TDS (mg/l) 25 10 <0.05 25 3rd qtr. 2008 July - Sept 8/4/2008 4th qtr. 2008 Oct. - Dec. 11/11/2008 1st qtr. 2009 Jan - March 2/3/2009 2nd qtr. 2009 /^ril - June 5/13/2009 3rd qtr. 2009 July - Sept. 8/24/2009 1 1 <0.05 29.3 <ai 28.7 <0.05 29.9 <0.05 23.4 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 <10 <10 <30 <1.0 <10 <0.50 <10 <20 54.4 <10 <0.50 <100 7.02 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 55.3 <10 <0.50 <100 695 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 56.4 <10 <0.50 <100 6.77 <15 13 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 53.8 <10 <0.50 <100 6.35 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 55.6 <10 <0.50 <100 7.08 <15 <10 15 1 1 *1.7(0.4+/-) •1.3(0.4+/-) •1.5(0.4+/-) •0.6 (+/-0.3) *1.1 (+/-0.4) 700 5 4,000 5 70 30 5 100 46 1,000 10,000 <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 <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 <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 6.5-8.5 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) Carbonate (mg/l) Bicarbonate (mg/l) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) <1.0 212 91 6.2 78.2 161 19.7 18.6 <1.0 197 93.7 5.96 80.8 163 19.7 19 <1.0 210 94.4 6.07 88.3 180 193 20.5 <1.0 205 97 62 84.9 1 180 201 20.3 <1.0 205 82.8 5.4 80.1 169 18.5 188 0.09 22.4 <0.05 75.4 1 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0.50 <10 <20 56.7 <10 <0.50 <100 6.76 <15 <10 <5.0 <0.50 <0.50 <25 <10 <10 <30 <1.0 <10 <0 50 <10 <20 58.2 <10 <0.50 <100 6.97 <15 <10 1 •0.8 (+/-0.4) •0.8 (+/-0.4) 1 1 <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 7.82 ao 124 493 1,230 7.60 0.9 122 460 1,230 <1.0 209 84 5.1 72.7 146 18.8 171 <1.0 215 92.7 6 79.4 169 17.7 19.2 Note: Concentrations shaded exceed the GWCL * The gross alpha counting variance exceeded 20%. Not Sampled during 2nd Quarter (June) 2007. This well was sampled in Juty 2007 as part of a hydrogeologic study perionned by the University of Utah. This study required undisturbed water in this well for at least 2 months prior to sampling. MW-32 Contaminant GWQS GWCL (Class 111) January '"Monthly Accl. 1/20/2009 1st qtr. 2009 Jan - March 2/2/2009 March '"Monthly Accl. 3/18/2009 Parameters Listed in Table 2 Nutrients (mq/L) Ammonia (as N) Nitrate + Nitrite (as N) Heavv Metals (uq/L) Arsenic Beryllium Cadmium Chromium Cobalt Copper Iron Lead t^anganese (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 Xvlenes(total) Others Field pH (S.U.) Fluoride (mg/l) Chloride (mg/l) Sulfate (mg/l) TDS (mg/l) 25 10 12.5 5 0.63 <0.1 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 2.64 9,130 4,850 58 <5.0 <0.50 2.98 <25 49 <10 9,180 <1.0 5,770 <0.50 11 63 <5.0 <10 <:0.50 <100 253 <15 163 3 8,450 5,410 64 15 1 7.5 1 5.2(1.0+/-) |5.5(+/-a7)| 5.0(0.7+/-) 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 <10 6.5-8.5 4 2 6.72 0.2 29 2,340 3,510 General Inorqanics Listed in Part I.E.1.(c)(2 Carbonate (mg/l) Bicarbonate (mq/I) Sodium (mg/l) Potassium (mg/l) Magnesium (mg/l) Calcium (mg/l) Total anions (meq/L) Total cations (meq/L) <1.0 419 234 14.3 232 527 56.5 56 1 April '"Monthly Accl. 4/22/2009 2nd qtr. 2009 April - June 5/13/2009 June "'Monthly Accl. 6/17/2009 July '"Monthly Accl. 7/29/2009 3rd qtr. 2009 July - Sept. 8/19/2009 September 1 '"Monthly Accl. 9/9/2009 1 0.72 <0.1 0.82 <0.1 1 2.9 8,250 S,7S0 62 <5.0 <0.50 2.98 <25 46 <10 7.600 <1.0 4,640 <0.50 10 57 <5.0 <10 <0.50 <100 2.54 <15 129 2.6 8,050 5,720 59 2.69 8,220 5,450 56 <5.0 <0.50 2.79 <25 48 <10 8,220 <1.0 ^_5;060^ <0.50 11 58 c5.0 <10 <0.50 <100 2.35 <15 131 2.73 7,990 5,040 54 •2.8(08+/-) 1 -1.6(0.5+/-) 1 -3.2(0.8+/-) | 7.9(1.1*/-) \ 6.7(1.0+/-) \ 4.8(0.8+/-) <20 <1.0 <20 <1.0 <1.0 <1.0 •cl.O <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 6.95 0.2 32 2,440 3,840 6.91 a2 48 1.950 3.680 1 <1.0 420 215 12.5 206 447 58.7 49 <1.0 420 218 12.2 173 492 48.9 48.6 Note: Concentiations in bold eicceed the GWQS Concentrations shaded exceed the GWCL (a) = Monthly accelerated monitoring event ' The gross alpha counting variance exceeded 20% ATTACHMENT 1 American West Analytical Laboratories )THF Certification Expired As Documented in a December 12, 2009 e-mail from Utah Bureau of Laboratory Improvement Page 1 of 2 Phillip Goble - Re: Fwd: American West Analytical Laboratories (AWAL) ^*i^A'.-: i'?,mt-• ':.^-''jffmmm.,:AM^^y.rmv From: To: Date: Subject: Attachments: Tamara DeMorest Phillip Goble 12/10/2009 10:50 AM Re: Fwd: American West Analytical Laboratories (AWAL) Tamara DeMorest.vcf Phillip, Your email was forwarded to me from David Mendenhall regarding THF certification for AWAL. The last instance of their accreditation for this compound was under RCRA by EPA Method 8260C on 06/04/08. The expiration date of this letter was 05/31/09. After this date none of the letters that I have in our file show accreditation for this compound. I have a RCRA letter right after this date (10/15/08 with the same expiration date of 05/31/09) that does not show this compound. So they either asked that it be removed or it was inadvertently removed. I'm guessing they requested the removal since it was never requested by them at a later date to have it removed. To sum up, they were certified for THF under RCRA by method 8260C through 10/15/08. Please let me Icnow if you have any additional questions as I am their primary contact in our office. Thank you. Business hours are Monday-Thursday from 7 a.m. to 6 p.m. Tamara A. DeMorest Laboratory Certifications Officer Utah Department of Health Division of Disease Control & Prevention Bureau of Laboratory Improvement PO Box 142109 Salt Lake City, UT 84114-2109 Office 801-538-9372 Fax 801-538-9373 tdemorest@utah.gov http://health.utah.gov/lab >>> Phillip Goble 12/10/2009 8:15 AM >>> David, Looking at your databases (RCRA, SDWA, CWA) that you have on your website. It appears AWAL is not certified for Tetrahydrofuran (THF). Is this correct? I know they were certified for THF in the past. When did their certification expire? Thanks in advance. Phil Goble Hydrogeologist file://C:\Documents and Settings\Pgoble\Local Settings\Temp\XPgrpwise\4B20D269EQ... 12/16/2009 Page 2 of 2 Utah Division of Radiation Control »> David Mendenhall 12/2/2009 1:49 PM >>> I don't see THF by 8260 on any previous certificate. A casual review of the certificate letter from their 'primary' accreditation body did not find it either. If the lab wants to be Utah certified for this they will need to first have their primary accreditation body accredit them and then let us know they have added it. Business hours are Monday - Thursday from 7 a.m. to 6 p.m. and we will beclosed on Fridays. David B Mendenhall Office- 801-538-9370 Fax - 801-538-9373 e-mail - davidmendenhall@utah.gov file://C:\Documents and Settings\Pgoble\Local Settings\Temp\XPgrpwise\4B20D269EQ... 12/16/2009