DRC-2010-002830 - 0901a06880184b83

0^
State of Utah
GARY R. HERBEKT
Go^Yrtior
CiREli RELL
Lieutenant Governor
Department of
Environmental Quality
Amanda Smith
E.xeciitivi' Director
DIVISION OF RADIATION CiONTKOI.
Dane L. Fintrfrutk
Dirtfior
DRC-20l0r002830
TO;
FROM:
CiATE:
SUBJECT:
Loren Morton
Phil Goble
March 30, 2010
MEMORANDUM \ j
'5. /yU^
Review of the 4th Quarter, 2009 (dated February 28. 2010)
Routine Groundwater Monitoring Report
Groundwater Discharge Permit (Pennit) 110370004
Denison Mines (USA) Corp. (DUSA)
White Mesa Mill, Blanding, Utah
This is a summary of the 4"' Quarter (October - December) 2009 sampling event and all accelerated
monitoring events during the Quarter as documented in the June I, 2009 DUSA Report, which .was
received by the DRC on June 1, 2009. After review of ihis report. DRC staff findings are as follows: 1)
The DUSA T' Quarter. 2009 Groundwater Monitoring Report was received by its respective due date
(March 1). 2) There were three samples (MW-3I, MW-32, and MW-65) where a result for TDS was either
not analyzed or reported as required by the Permit. 3) Analytical Laborator>' performing testing for DUSA
was not certified by State of Utah to pertorm 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)
Groundwater Report Problems. 8) Summary of the apparent violations is also provided below, i
LO Accelerated Monitoring and POC Wells Exceeding GWCL i
When a momtoring well has a pollutant that exceeds a GWCL set forth in Table 2 of the Pennit it is in
Probable Out of Compliance (POOC) slatus. DUSA is then required to immediately initiate accelerated
sampling of that pollutant (see Permit, Part l.G. 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 staiislically
significantly higher as determined by some EPA guidance (see Pennit, Part 1.G.2). However, in a Notice
of Violation (NOV) dated August 24. 2006, the DRC decided a parameter had to exceed the Ground Waier
Quality Standard (GWQS) set forth in Table 2 of the Permit for iwo or more consecutive limes lo 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. The Background Quality Reports
were approved with the most recent Pennit Modification (January 20. 2010). In the Permit Modification,
new GWCLS were established. All groundwater samples collected after January 20, 2010 will be subject
lo the new GWCLS.
16X Nonh 1050 West • Salt Lake Ciiy, IIT
Mailing .Address: P.O. Bo.>i 144850 • Salt Lake Ciiv. Irt g4l 14-4850
Telephone (801) 51('i-42r;0 ' Fax (WH) 5:13-1097 • T.D D (801) 5:16-4414 ;
iiiiii-.(ii.'i7.jif(f/i.poi' I
Primed or 100^; rcLj-L-ifd 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. '
Table 1 - Wells Vionitored Quarterly Accelerated to Monthly Monitorine
Well Class *Position Parameter Date of First
Exceedance of
GWQS/GWCL
Date Accelerated
Monitoring First
Required .
MW-14 Class 111 water D-4A manganese
uranium
March 2005
March 2005
April 2005
April 2005
MW-26 Class Til water CF-P, C-2 chloroform
dichloromethane
manganese
uranium
March 2005
June 2005
March 2005
March 2005
April 2005
July 2005
April 2005
April 2005
MW-32 Class III water C-2 cadmium+
gross alpha+
iron-F
manganese
nickel+
March 2005
March 2007
March 2005
March 2005
March 2005
April 2005
April 2007
April 2005
April 2005
April 2005
.* D = Down-gradient; U = Up-gradient; C = Cross-gradient; CF-P =
Cell #
chloroform pumping well; I,2,3,4A =
+ = Well/parameters not in excess of their respective GWCL in the 4th quarter of2009
• Wells Momtored Semi-aonually Accelerated to Quarterly Monitoring ,
Well Class *Position Para meter Date of First
Exceedance of
GWQS/GWCL
Date Accelerated
Monitoring First
Required
MW-1 Class 11 water U-l manganese+
THF^
4"^ Quarter 2005
2"' Quarter 2005
1" Quarter 2006
3^' Quarter 2005
MW-3 Class III water D-4A manganese ^-
selenium
thallium-i-
THF+
uranium+
4^ Quarter 2005
2""* Quarter 2006
3^ Quarter 2005
3^' Quarter 2006
3'^^ Quarter 2005
V Quarter 2006
3'** Quarter 2006
4'^ Quarter 2005
4'' Quarter 2006
4*^ Quarter 2005
MW-5 Class n water D-3 fluoride-F
manganese
THF+
2"' Quarter 2005
2*"^ Quarter 2005
4'' Quarter 2005
3"^ Quarter 2005
3''' Quarter 2005
1" Quarter 2006
MW-12 Class 111 water D-3 THF+
uranium
2™* Quarter 2005
2"" Quarter 2005
3"" Quarter 2005
3^' Quarter 2005
MW-15 Class III water D-4A selenium
uranium
2"'' Quarter 2005
2™* Quarter 2005
3'^ Quarter 2005
3'" Quarter 2005
MW-17 Class HI water C-4A uranium 2°*' Quarter 2005 3'" Quarter 2005
MW-18 Class II water U-l manganese+
thallium
uranium
4"^ Quarter 2007
2™" Quarter 2005
2"'' Quarter 2005
r" Quarter 2008
3'*' Quarter 2005
3'^ Quarter 2005
Pace 3
MW-19 Class 11 water U-l nitrate -F nitrite-t-4"* Quarter 2008 1" Quarter 2009
Fluoride-i-4'" Quarter 2005 I " Quarter 2006
selenium+ 2"'Quarter 2005 3"^ Quarter 2005
lhalhum+ 4* Quarter 2005 1'' Quarter 2006
uranium+ 2°" Quarter 2005 3"' Quarter 2005
* D = Down-gradient; U = Up-gradieni; C = Cross-grndieni; 1.2,3,4A = Cell #
-F = Well/parameters not in excess of their respective GWCL in the 4'^ qiiarier of2009
Some of ihe parameters lisled in ihe table above were not found to be in excess of their respective,GWCL
during the 4'^ Quarter, 2009 monitoring event. 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 4^*^ Quarter. 2009 sampling event; \
• MW-l; Manganese (1'' Qtr 2007) and THF {4'-'' Qtr 2007)
• MW-3; Manganese (I" 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)
• ^TW-19: Nitrate + Nitrite (4^ Qtr 2008), Selenium (I" Qtr 2006), Thallium (1" Qtr 2008), Uranium
(4" Qtr 2007), and Fluoride (!'' Qtr, 2009)
2.0 Parameters That Were Not Reported as Required by the Permit
MW-31: As documented in the 4^^ Quarter, 2009 Report, monitoring well MW-31 was sampled on
November 14. 2009, as evidenced by the Field Data Worksheet for well MW-31 in Tab B. The analytical
report for the well was provided in Tab G of the report: however the analytical report did not include a
result for Tolal Dissolved Solids (TDS).
MW-32: As documented in the 4*^ Quarter, 2009 Report, monitoring well MW-32 was sampled on
November 14, 2009, as evidenced by the Field Dala Worksheet for well MW-32 in Tab B. The analytical
report for the well was provided in Tab G ofthe report; however ihe analytical report did not include a
resuU for Total Dissolved Solids (TDS).
I
MW-65: As documented in the 4'^ Quarter, 2009 Report, sample MW-65 (blind duplicate of MW-32) was
collected on November 14, 2009, as evidenced by the Field Data Worksheet for sample MW-65 ih Tab B.
The analytical report for the sample was provided in Tab G of the report: however the analytical report did
not include a result for Total Dissolved Solids (TDS). ;
Parts I.E. 1(b) and (c) of the Permit requires DUSA lo conduct quarteriy groundwater quaHty monitoring at
well MW-31 and semi-annual monitoring at well MW-32. Under Part I.E. 1(d) said compliance monitoring
is to include all GWCl. parameters, including TDS, Failing lo report a result for TDS in wells MW-31 and
MW-32 is a violation of Part I.F. 1 of the Pemiii.
Part I.E. 1(a) requires DUSA conduct all groundwater monitoring and analysis in accordance whh the
currently approved Groundwater Quality Assurance Plan (QAP). The version of the QAP enforce at the
time of the 4"" Quarter. 2009 sampling event was DUSA QAP Rev. 4, which was approved by the DRC dn
March 30, 2(K)9. Section 4.3.3 of the QAP requires that a duplicate set of samples be taken from one of the
wells and be analyzed for all contaminants listed in Table 2 of the Pemiit. Failing to report a result for
TDS in sample MW-65 is a violation of Section 4.3.3 of the Quahty Assurance Plan (QAP) and Parts
I.E. 1 (a) and I.F. 1 of the Pennit. ' •
Page 4
This problem was also found after review ofthe T' Quarter, 2008 DUSA groundwater monitoring report.
In that instance, the problem was brought lo the company's attention in a July 25, 2008 Notice of
Enforcement Discretion Letter. This same problem was identified after review ofthe 4* Quarter. 2008
Report. In an April 21, 2009 NOV (Violation No. 1), DUSA was cited for failing to report a result for TDS
in well MW-25 in the 4^ Quarter, 2008 Report, for the November 2008 monitoring event. Because this
problem was a repeat violation, the DRC decided to pursue a Civil Penalty against DUSA. On October 7,
2009 DUSA was issued a Penalty of $4,815. Enforcement for this problem was pursued via an October 7,
2009 Settlement Agreement. Payment of the $4,815 penally was received by DRC in a DUSA letter dated
October 28, 2009. DUSA responded to the April 21, 2009 NOV in a May 22. 2009 letter, in which they
clamed corrective action would start with the 2"*" Quarter, 2009 Groundwater Report.
As described above, this problem continues in Ihe 4"' Quarter, 2009 Report, in that DUSA failed to report a
TDS result in 3 samples (MW-3L MW-32, and MW-65). During a phone call on March 29,2010 DRC
staff informed DUSA of the missing TDS sample resulls in wells MW-31, MW-32, and blind duplicate
MW-65. Later, in response to a DRC request, DUSA provided TDS analysis results for wells MW-31 and
MW-32 and sample MW-65, in an e-mail of April 2, 2010. As a result, il is clear that DUSA performed
Ihe required monitoring by sampling and analyzing TDS in wells MW-31, MW-32, and blind duplicate
MW-65, but failed lo provide the results of this work in their 4'^ Quarter, 2009 Report. Because this is a
repeal and continuing problem it is recommended that the Executive Secretary pursue a Civil Penalty for
this issue.
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, ihe DRC and DUSA entered into a
Consent Agreement for Docket No. UGW07-02 on November 14, 2007.
In resolution of ihe 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 of the 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 amouni of S5(K) per day for every
day after January 1, 2008.
On May 30, 2008 the DRC received ihe DUSA 1" Quarter, 2008 (January - March) Groundwater
Monitoring Report. The January, 2008 monitoring event was the first event where DUSA committed lo
meet the terms of ihe Consent Agreement. After reviewing the (January - March) analytical reports, it
appeared DUSA failed lo 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 of the $1,000 penalty was received by DRC in a DUSA letter dated July 10, 2008.
Starting with the 2"* Quarter, 2008 Report. DUSA began sending THF samples to American West
Analytical Laboratories (AWAL) for analysis.
During review of the 2"'' Quarter and 3"" Quarter, 2009 reports it was identified thai AWAL was is no
longer certified for THF. Apparently, AWAL's certification for THF under EPA Method 8260C expired
May 31, 2009. This information was shared with DUSA in a conference call on December 22, 2009.
Page 5
DUSA called the DRC later that day and said that they had talked with its laboratory. DUSA reported thai
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 ca|led Tamara DeMorest to verify the
claim. Apparently, as explained by Ms. DeMorest. AWAL updated their certified method from8260B 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 of the DUSA
QAP (Rev. 4) required that THF be analyzed under EPA Method 82G0B. AWAL performed analysis for
THF under method 8260C, this was a violation of Section 8.2 and Table I ofthe DUSA QAP and Part
I.E. 1(a) ofthe Permit. Enforcement for this problem was pursued via a Jantiary 14, 2010 DRC 30 Day
Payment Demand Letter under authority ofthe November 14, 2007 Stipulated Consent Agreement.
Payment of the $4,000 penalty was received by DRC in a DUSA letter dated February 18, 2010.
A review ofthe Utah SHL website shows that AWAL is now certified lo perform analysis for THF under
method 8260C. Apparently the Utah SHL backdated AWAL's certification so it is now certified to
perform analysis for THF; however, DUSA wasn't notified of this problem until December 22, 2009 and
because the 4''' Quarter, 2009 groundwater samples were collected in October, this problem continues for
the 4"^ Quarter, 2009 Report.
During the 4'*' Quarter (October), 2009 monitoring event, 26 THF samples were collected over a nine day
period (October 12-14, 19-21, and 26 - 28). Although the laboratory is now certified by the State of
Utah Bureau of Laboratory Improvement to perform volatile organics analysis by EPA Method 8260C, it
was not certified to perform testing for THF at the time AWAL performed analysis for THF (October).
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.
However, DRC staff recommends the Executive Secretary use enforcement discretion in this matter rather
than seeking a Civil Penalty based on the following:
• This same problem was pursued under a January 14. 2010 DRC 30 Day Payment Demand Letter,
in which DUSA paid the penalty of $4,000 on February 17, 2010.
• On Febmary 17, 2010, in response to ihe January 14, 2010 DRC 30 Day Payment Demand Letter,
DUSA stated "Denison has instituted intemal procedures to verify that its contract laboratories
maiuiaiu their certifications for all required constituents in the fiiture. "
• AWAL is now certified by the Utah SHL to perform analysis for THF under 8260C.
• In a February 17, 2010 Letter. DUSA proposed a change lo the DUSA QAP. In the proposaK
DUSA requested thai: "Table 1 ofthe QAP be amended to require that the analytical procedure to
be used by the Mill's contract analytical laboratory for the analysis of THF method SW8260B or
SW8260C." DUSA QAP (Rev. 5) was approved by the DRC on Febnjary 23. 2010, which allows
THF be analyzed by either EPA method SW8260B or SW8260C.
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 ihe 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 Table 2 below, DUSA
failed to evacuate two casing volumes in 17 wells during the 4"^ Quarter (October), 2009 monitoring event.
Page 6
Table 2 - Monitoring Wells Not Purged for Two Casing Volumes
Groundwater
Monitoring
Event
Moniloring'
Well
DUSA
Calculaied
Two Casing
Volumes
DUSA
Calculated
Purge Rate
DUSA
Calculated
Time to Purge
Two Casing
Volumes
(Minutes)
Reported
Time Well
Purged
(Minutes)
'I'otal Gallons
Purged Before
Sample
Collection
4'" Qir. 2009 MW-1 38.14 .217 ppm 175 120 26.04 ,
4'" Qir. 2009 MW-5'" 41.7 .192 gpm 217 120 23.04
4'" Qir. 2009 MW-W " 52.04 .217 gpm 240 120 26.04 1
4'" Qtr. 2009 M\V-12-" 2S.fi . 192 gpm 148 120 23.04 '
4'" Qtr, 2009 MW-14'" 32.78 .208 gpm 157 120 24.96
4'" Oir. 2009 MW-15 40.08 .208 gpm 192 120 24.96
4'" Qir. 2009 MW-17"-' 46.08 .208 gpm 221 • 120 24.96
4"' Qtr. 2009 NfW-lS 82.38 .208 ppm 396 120 24.96
4"^ Qir. 2009 MW-19'" 128.22 .208 gpm 616 120 24.96
4'" Qtr. 2009 MW-22 61.38 .217 gpm 282 120 26.04
4'" Qir. 2009 MW-25 51.06 .200 gpm 255 120 24
4"' Qtr. 2009 MW-27"' .S7.40 .33 gptii 173 120 39.6 •
4'" Qtr. 2009 MW-28 42.14 .208 gpm 202 120 24.96 •
4"'Qtr. 2009 MW-29'" 31.6 .208 gpm • 151 120 24.96 ,
4'" Qir. 2009 MW-30'" 42.54 .200 ppm 212 120 24 ,
4'" Qtr, 2009 MW-31 78.74 .208 ppm ."^78 120 24.96
4'" Qir, 2009 MW-32 '" 72.32 • .217 ppm 333 120 26.04 :
Fuulnnles:
11 DdlLi for ihis well was obtained Iroin Tah B of the 4*" (Quarter 2[X)9 Grnundwater Monitoring Repon
21 DRC Maff verified the 2 casing volume values reported by Dl'SA by independenliy calculating the casing volumes for each v/ell. based on
depth to groimdwater DLIS.^ reported, loul well depth, and each well' i inside diameter. I Jsing this method, the DRC obtained the same result
as D.SliA reported in the 4'^'Quarter. 2009 Repon.
Section 6.2.7(d)(v) of the DUSA QAP, states: "... If the well is purged to dryness or is purged such lhat
fiill recovery e.xceeds two hours, the well should be sampled as soon as a sufficient volume of groimdwater
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 lo 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
Permil.
This problem was also found when DRC staff reviewed the 1" 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 thai action with a December 23, 2009 letter (included
as Attachment 1), in which they stated that the "Samples were collected in accordance with Sections
6.2.7(d)(v) and 6.2.7(d)(vi) of the QAP during the 4''' Quarter, 2009 event. " Apparently, this commitment
by DUSA was not lasting, therefore it is recoininended that the Executive Secretary pursue a Civil Penalty
for this isiiue.
5.0 Stabilization of Indicator Field Parameters Not Reached Before Sample Collection
As stated in Section 6.2.7(d)(v) of the DUSA QAP; "purging is completed after two casing volumes have
been removed and the field parameters pH. leifiperature, specific conductance, redox potential (Eh) and
turbidity have stabilized to within \07c over at least two consecutive measuremetits." The 4"^ Qtr,'2009
Report .showed that the field parameters pH, temperature, and specific conductance, and redox potential
(Eh) reached stabilization in each well before sample collection in the. 4^ Quarter (October). November,
and December, 2009 monitoring events. However, this is not true for turbidity. As shown on the table
Page 7 •
below, there were 10 wells in the 4"" Quarter, one well in the November, and one well in the December,
2009 moniloring 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 ih Table 3
below. As can be seen, the company failed to reach a +/- 10% stability before sample collection.
Table 3 - Stabilization of Turbidity Not Reached Before Sample Collection
Groundwater
Monitorine Event
Well
Second to Last
Turbidity
Measurement
(NTU)'-"
Last Turbidity
Measm-ement
(NTU)'-"
%
DifTerehce
4"" Qtr. 2009 MW-3A'" 0@7.28pa]lons 0.5 @ 10.4 gallons oc
4"^ Qtr. 2009 MW-11 5.4 @ 16.27 gallons 2.2 & 23.87 gallons -59^
4" Qtr. 2009 MW-12'" 0.3 @ 15.16 gallons 0.5 @ 20.92 gallons 67%
4'" Qir. 2009 MW-18'" 0 @ 17.68 gallons 0.9 (jf 22.8 gallons
4'" Qir, 2009 MW-19'" 1.5 @ 17.68 gallons 3.1 ^ 22.88 gallons 107^r
4'" Qir. 2009 MW-20'" 3.8 @ 4.16 gallons 2.3 @ 5.2 gallons -39^^
4'" Olr. 2009 MW-23 '" 1.9 @ 16.64 gallons 1.6 @ 20.8 gallons -16%
4"" Qtr- 2009 MW-29'" 2.3 (gl 15.6 gallons 8.9 @ 22.88 gallons 287%
4'" Qir, 2009 MW-30'" 1.6 <S 15.6 gallons 0 @ 21.6 callons X
4'" Qir. 2009 MW-32'" 10 @ 17.36 pallon;, 7.3 @ 23.87 pallon.s -27%
November, 2009 MW-32'" 7.1 @ 45.57 pallors 5.9 @ 69.44 gallons -17%
December. 2009 MW-32 1.7 @ 52.08 gallons 6.9 @ 69.44 gallons 306%
FoQLnotcs:
1) Data for this well was obtained
2) Data for this well was obtained
3) Data for this well was obtained
4) Review ofthe 4*^ Quarter, 2009
from Tab B of the 4"^ Quarter 2009 Groundwater Monitoring Repon
from Tab C of the 4* Quarter 2009 Croundwaler MonitoriDg Report
from Tab D of the 4''' Quarter 2009 Groundwater Monitoring Report \
Report .shows a total of 4 field parameter measurements were collected and reported in e.ich well
This is also not true for redox potential (Eh). As shown on the table below, there were 4 wells in the
4'^ Quarter, and one well in the November. 2009 monitoring events where redox potential (Eh),
stabilization within 10% wasn't reached before sample collection. In each of the.se situations, DUSA
made 4 field measurements for redox potential (Eh), the two last of which are listed in Table 4 below.
As can be seen, the company failed to reach a +/- 10% stability before sample collection.
Table 4 - Stabilization of Redox Potential (Eh) Not Reached Before Sample Collection
Groundwater
Monitorine h)vent
Well
Second to Last
Redox PutenUal (Eh)
Measurement
Last
RedOK Potential (Eh)
Measurement
%
Dilference
4"" Qtr. 2009 MW-2*" 92 @ 7.28 gallons 127 @ 10.4 gallons 38%
4'" Qtr. 2009 MW-18"' 14 @ 17.68 gallons 11 22.8 gallons -21%
4'" Qtr. 2009 MW-24'" 152 @ 3.12 Gallons 182 @ 5.2 gallons 20%
4'" Qir. 2009 MW-29'" 142 @ 15.6 gallons 159 @ 22.88 gallons 12%
November, 2009 MW-32 136 @ 45.57 eallons 121 @ 69.44 gallons 11%
Footnotes-
1) Data for this well was obtained from Tab B of the 4"" Quarter 2009 Groundwaier Monitoring Report
2) Dala for this well was obiained from Tab C of the 4* Quarter 2009 Groundwater Monitoring Report
^) A total of 4 field parameter measurements were eollected in each well
Failure to reach stabilization for turbidity or redox potential (Eh) 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. 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. 2)'. DUSA
responded to that action with a December 23. 2009 letter (included as Attachment 1), in which they stated
that the "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. " Apparently, this commitment by DUSA was not lasting, therefore it is
recommended that the Executive Secretary pursue a Civil Penally for this issue.
Page 8
6.0 Wrong Formula Was Lsed to Calculate Relative Percent Difference !
The 4''' Quarter, 2009 Report showed thai the Relative Percent Difference (RPD) values DUSA calculated
in Tables 3. 4, and 5 are incorrect. The DUSA RPD values shown in the tables below are reported lower
than the true value in every case bul three, as .shown on the tables below. This under-reporting of, RPD
appears to be an artifact of using an erroneous RPD equation, and not the equation found in the currently
approved QAP.
RPD of Original Sample (MW-32) and Blind Duplicate (MW-65) in October, 2009 (Table 3)
Constituent Well
MW-32
MW-65
(Blind
Duplicate)
DUSA
Calculated
RPD(%)
DRC
Calculated
RPD(%)
Ammonia as
(N) 0.77 mg/L 0.74 mg/L 0.99 3.97 '
Cadmium 3.04 Mg/L 3.06 MK/L 0.17 -0.66
Cobalt 47 fig/L 46 MP/L 0.54 2.15
Iron 7,980 pg/L 7,790 Mg/L 0.93 2.41
Molybdenum i\pg/L 2.38 9.52
Thallium 0.82 Mg/L 0.77 Mg/L -6.29
Uranium 2.50 Mg/L 2.40 Mg/L -0.69 4.08
Zinc 156 Mg/L 149 Mg/L 4.55 4.50
Sulfate 2.290 M.e/L 2,360 Mfi/L -0.75 -3.01
Bicarbonate 440 Mfi/L 445 Mfi/L -0.28 -1.13
Sodium 238 Mg/L 235 MP/L 0.32 1.27 :
Potassium 14.5 Mg/L 14.9 Mg/L -0.68 -2.72
Magnesium 224 Mg/L 231 Mfi/L -0.77 -3.08 1
Calcium 529 Mg/L 531 MP/L -0.09 -2.83 •
In addition to the RPD values being calculated incorrectly, DUSA used the wrong concentration results to
determine RPD for sample MW-65 in five instances (cadmium, iron, thallium, uranium, and zinc). The
correct concentration values are shown in the table above, the numbers shown in Bold Text are the places
where DUSA used the wrong number for the RPD calculation.
RPD of Original Samp e (MW-22) and Blind Duplicate (MW-70) in October, 2009 (^ rable 3)
Constituent
Method Detection
Liniit
(MDL)
Well
MW-22
MW-70
(Blind
Duplicate)
DUSA
Calculated
RPD(%)
DRC
Calculated
'RPD(%)
Ammonia as
(N)
0.1 0.6 mg/L 0.92 mg/L -10.53 , -42.11
Beryllium 0..50 2.5 Mg/L 2.8 Mfi/L -2.83 : -11.32
Cadmium 0.50 91.4 Mg/L 90.6 Mg/L 0.22 0.88
Cobalt 10 308 Mg/L 298 Mg/L 0.83 3.30
Manganese 10 31,800 Mg/L 32.200 Mfi/L -0.31 -1.25
Selenium 5 12.1 Mg/L 11.8 Mg/L 0.63 2.51
Thallium 0.50 1.2 Mg/L 1-17 Mg/L 0.63 2.53
Uranium 0.30 51.7 MgA. 48.32 Mfi/L 1.75 ' 6.76
Zinc 10 532 MgA. 527 Mg/L 0.24 0.94
pH 0.01 7.22 fig/L 6.72 Mg/L 1.79 7.17
Fluoride O.l 3.2 Mg/L 3 Mg/L 1.61 6.45
Chloride 1 67 Mg/L 64 Mg/L 115 4.58
TDS 10 7,600 Mg/L 7.660 Mg/L -0.20 -0.79
Page 9
Bicarbonate 1 499 Mfi/L 494 Mfi/L 0.25 1.01
Sodium 1.1 249 Mfi/L 241 Mfi/L 0.82 • ' 3.27
Magnesium 0.50 983 Mg/L 987 Mg/L -0.10 ' -0.41
Calcium 1.2 453 Mfi/L 461 Mfi/L -0.44 -1.75
RPD of Original Sample (MW-32) and Blind Duplicate (MW-65) in November, 2009 (Table 4)
Constituent Well
MW-32
MW-65
(Blind
Duplicate)
DUSA
Calculated
RPD(%)
DRC
Calculated
RPD(%)
Cadmium 1.31 M.c/L 1.20 Mfi/L 2.19 8.76
ton 6,540 Mg/L 6,350 Mg/L 2.58 0.15
Manganese 5,260 Mfi/L 4,950 Mfi/L 2.24 6.07
Nickel 47 Mg/L 39 Mg/L 3.28 18.60,
RPD of Original Sample (MW-32) and Blind Duplicate (MW-65) in Deceniber, 2009 (Table 5)
Constituent Well
MW-32
MW-65
(Blind
Duplicate)
DUSA
Calculated
RPD(%)
DRC
Calculated
RPD(%)
Cadmium 1.13M.P/L 1.12 Mg/L 0.22 0.89 •
Iron 6.970 Mg/L 6.860 Mg/L 1.25 1.59
Manganese 5,270 Mfi/L 5,300 Mfi/L 5.94 -0.57 :
Nickel 50 Mg/L 50 Mfi/L 1.68 0 ,
Section 3.1 of the QAP states that "For duplicate measurements, precision is e.xpressed as the relative
percent difference ("RPD ") of a data pair and will be calculated by the following equation:
RPD = [(A-B)/((A+B)/2j] x 100"
As shown on the tables above, DUSA failed to use the correct formula in 39 instances to deteniiine RPD
for the duplicates ofthe October. November, and December, 2009 monitoring events. Failing to use the
correct fonnula is a violation of Section 3.1 of the QAP and Part I.E. 1(a) ofthe Permit;
7.0 Summary Table Showing GWCL Exceedances for the 4*** Quarter, 2009 Event Not
Comprehensive
Table 1 of the 4"^ Quarter, 2009 Report is not comprehensive. There were a number of GWCL
exceedances for the quarter that was not included in the table including; uranium in wells MW-141 MW-15,
and MW-17; and thallium in MW-18. Failing lo have a comprehensive table showing all groundwater
exceedances during the 4"^ quarter of 2009 is a violation of Section 11 of the QAP and Parts I.E. 1(a) and
I.F. 1(e) of the Permit.
8.0 Groundwater Samples Collected with Turbidity Measurement > 5 NTU ;
As slated in Section 6.2.7(d)(v) of the DUSA QAP; "... turbidity tneasuremeiu in the water should he < 5
NTU prior to sampling unless ihe well is characterized bv water that has a higher turbidity. " During the 4'''
Quarter. 2009 monitoring events (October, November, and December), the Field Data Worksheet for
monitoring wells MW-24, MW^-29 and MW-32 during showed that groundwater samples were collected
above the 5 NTU standard (see table below).
Page 10
Table 5 - Groundwater Samples Collected with Turbidity Measurement > 5 NTU
Groundwater
Monitoring Event Well Turbidity
4"' Qtr. 2009 MW-24'" 7.9
4"' Qfr. 2009 MW-29'" 8.9
4'" Qir. 2009 MW-32 '' • 7.3
November, 2009 MW-32 5.9
Dcccntbcr, 2009 MW-32 6.9
Fftotnntcs:
1) Data for ihis well was obtained from Tab B of [he 4thQiiarter 2004 Groundwater Monitonng Report
2) Data For this well was ohtained from Tab C of the 4rh Quarter lOW (Irimndwaier Monitoring Report
3j Dala for this well wa*; ohtained from Tab 1> of the 4"' Quarter 2009 CrLiundwater Monitoring 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 ils current wording "...Turbidity measurement in the water should be < 5 NTU prior to
sampling... " needs to be strengthened in the DUSA QAP to make it a requirement before sample •
collection. This recommendation was made previously in a DRC staff memorandum dated July 14, 2009.
A conference call was held with DUSA on February 16. 2010 lo discuss ways to improve the DUSA QAP.
During the call, it was agreed that Section 6.2.7(d)(v) of the DL'SA QAP would be changed lo "shall"
rather than should. A redline/strikeoul version ofthe QAP (Revision 6.0) was e-mailed to DUSA on
February 17, 2010. On February 25. 2010 DUSA requested a conference call to discuss turbidity. In the
conference call. Mr. Ryan Palmer of DUSA explained that they have been seeing turbidity in several wells
above the 5 NTU standard at the time of sample collection. Mr. Palmer said that the levels of turbidity
seen were a direct result of DUSA pumping the required two casing volumes before sample collection.
DUSA brought up the possibility of requesting a variance for turbidity stabilization. The DUSA request for
variance regarding turbidity was submitted under letter dated April 2, 2010. and is currently under DRC
review. '
On March 22, 2010 DUSA submitted DUSA QAP (Rev. 6). After review of this document, it appears
Section 6.2.7(d)(v) of the DUSA QAP will remain as "...iiirhidity mea.surement in the water shoidd be <5
NTU prior lo sampling... 'Tor the time being.
9.0 Previous Monitoring Events QA/QC Sample Data Problems
QA/QC problems found in the 2"" and 3"* Quailer. 2009 groundwater moniloring events showed a number
of issues of non-compliance w ith the DUSA QAP (for details see January 19, 2010 DRC Memo).' These
antecedent problems were identified in previous DRC documents, and included;
I
• The DUSA THF samples collected in May and August, 2009 were analyzed by a method not listed
in the approved QAP. This is in violation of Section 8.2, Table I and Part I.E.5(c). of the Permil
• DUSA failed to evacuate two casing volumes before collecting groundwater samples in 28 wells
during the April - September, 2009 groundwater monitoring events. This is in violation of Section
6.2.7(d)(v) ofthe DUSA QAP and Part I.E.Ua) of the Permit.
• DUSA failed to allow field turbidity to stabilize before collecting groundwater samples in 25 wells
during the April - September. 2009 groundwater 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.
DUSA failed lo collect groundwater samples lhat were below the 5 NTU standard in 11 w^ells
during the April - Septemlier. 2009 groundwaier monitoring events. This is in violation of Section
6.2.7(d)(v) ofthe DUSA QAP and Part I.E. 1(a) of ihe Permit.
Page 11
• During the 3"^ Quarter, 2009 monitoring event. 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%). This QA/QC problem was in violation of Section 9.1.4(a) of the QAP.
• During the 3^^^ Quarter. 2009 moniloring event. 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%). This QA/QC problem was in violation of Section 9.1.4(a) of the 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 subniittal 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 groundwaier report submitted to the
DRC. I
10.0 QA/QC Sample Data Problems - 4"* Quarter of 2009
The following are QA/QC problems that occurred in the monitoring events during the 4'^ Quarter of 2009.
The issues listed below are in non-compliance with the QAP and details can be found in Table 6 attached
to this memo.
4'" Quarter 2009. Sampling Date: October 12 - 28. 2009 (Table 6)
Relative Percent Difference was greater than 20% in original sample {MW-22, 0.6 mg/L) compared to
duplicate sainple (MW-70. 0.92 mg/L) for ammonia (as N) (42.11%), see Table 6. This is in violation of
Section 9.1.4(a) ofthe QAP. Non-confomiance exists when the RPD >20%. unless the measured i
concentrations are less lhan 5 times the required detection limit. The detection limit for ammonia|(as N)_
was 0.1 mg/L. Therefore, he ammonia (as N) results of MW-22 (0.6 mg/L) and MW-70 (0.92 mg/L) are
greater than 5 times the detection limit (0.1 mg/L). Although the results for ammonia (as N) for well MW-
22 and blind duplicate MW-70 were below the GWQS of 25 mg/L for ammonia (as N), DUSA failed to
fully and completely disclose non-conformance in well MW-22 and blind duplicate sample MW-70 for the
October, 2009 sampling event, where the RPD for ammonia (as nitrogen) was greater than 20%. Failing lo
completely disclose non-conformance in well MW-22 and blind duplicate sample MW-70 for the October, .
2009 sampling event, where the RPD for ammonia (as nitrogen) was greater than 20% is a violation of
Section 9.1.4(a) of the DUSA QAP and Part I.F. I (e) of the Pennit. '
11.0 Groundwater Report Problems i
I
During review of the text portion of the 4^ Quarter. 2009 Report a few items of improvement were
identified:
• It appears that the Time Concentrations Plot included as Tab I included results identified as outliers
in preparation ofthe Background Quality Reports. In the Background Reports (dated October
2007 and April 30. 2008). these outliers were excluded for consideration; therefore, these outliers
should be excluded from the Time Concentration Plots as well. As these outliers may either show
there a problem when there really isn't one or hide a potential problem.
• DUSA Statement: DUSA slates on page 13 regarding casing volumes: "Prior to November 17.
2009, sampling persoimel believed that they had the option either to pump each well to two casing
volumes or to pump the well until field parameters were stabilized. Further, they believed they
Page 12
had the verbal approval of the UDEQ representative who has witnessed the field sampling
program, to determine how long each well would require to be pumped to two casing volumes,
and to pump only to 120 minutes on any well that would require longer than this interval of
time. Denison received a Notice of Violation dated November 17, 2009 in which UDEQ identified
that Mill staff were not following the QAP requirement to evacuate t^vo casing volumes and to
achieve stable parameters."
DRC Response: This statement is untrue. At no time did any DRC inspector give any such
approval verbal or otherwise. There were two DRC inspectors (Phil Goble and Dean Henderson)
present during the 4^ Quarter (October) 2009 monitoring event. Both DRC inspectors recall that
during the 4"^ Quarter, 2009 split sampling event on October 12, 2009, the DRC inspectors asked
the DUSA sampler "'why do you only pump for 120 minutes rather than pumping for 2 casing
volume.'iT The sampler (Mr. Tanner Holliday) explained that: the contractor who installed the
bladder pumps told DUSA they would only have to pump for 2 hours before collecting a sample.
This claim was substantiated by the sampler's supervisor (Mr. Dave Turk), who also is the Site
Radiation Safety Officer (RSO) at the White Mesa Uranium Mill.
12.0 Violations Where Pursuing a Notice of Violation is Recommended
1. DUSA failed to report all well monitoring and samples collected, including a result for TDS in
samples MW-31 and MW-32 in the 4^^ Quarter 2009 Report, for the October 2009 monitoring
event This is in violation of Part I.F. I of the Pennit. This is a continuing violation cited previously
in an April 21, 2009 DRC NOV.
2. DUSA failed to report all well monitoring and samples collected, including a result for TDS in
field duplicate MW-65 in the 4"^ Quarter 2009 Report, for the October 2009 monitoring event.
This is in violation of Section 4.3.3 of the DUSA QAP and Part I.F.I of the Permit. Failing to
report results in MW-65 is a continuing violation cited previously in an April 21, 2009 DRC NOV.
3. DUSA failed lo allow field turbidity lo stabilize before collecting groundwater samples in 12 wells
during the October, November, and December, 2(X)9 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 continuing
violation cited previously in a November 17, 2009 DRC NOV.
4. DUSA failed to allow field redox potential (Eh) to stabilize before collecting groundwater samples
in 5 wells during the October and November, 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 Permil. This is a continuing
violation cited previously in a November 17, 2009 DRC NOV.
5. DUSA failed to evacuate two casing volumes before collecting groundwater samples in 17 wells .
during the 4"" Quarter (October) 2009 monitoring event. 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 continuing violation cited previously
in a November 17, 2009 DRC NOV.
6. DUSA failed to use the correct formula in 39 instances to determine.RPD for the
duplicates of the October, November, and December, 2009 monitoring events. This is in
violation of Section 3.1 ofthe QAP and Part I.E. 1(a) of the Permit.
7. DUSA failed to list all GWCL exceedances that occurred during the 4^ quarter of 2009 in
a summary table. This is in violation of Section 11 ofthe QAP and Part LE.l(a) of the
Permit.
Pa^e 13
8. DUSA failed to fully and completely disclose all non-conformance with the apjjroved
QAP for the October, 2009 sampling event with respect to a RPD in excess of 20% for
ammonia (as nitrogen) in well vrW-22 and blind duplicate sample MW-70. This is in
violation of Section 9.1.4(a) of the QAP and Part T.F.l(e) of the Pennit.
13.0 DRC Staff Recommendations for Enforcement Discretion
1. During the 4"^ Quarter (October), 2009 monitoring event, 26 THF samples were collected over a
nine day period (October 12 -14, 19 - 21. and 26 - 28). Although the laboratory is now certified
by the State of Utah Bureau of Laboratory Improvement to perform volatile organics analysis by
EPA Method 8260C, it was not certified to pertbrni testing for THF at the time AWAL performed
analysis for THF (October). 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) of the Permit.
However. DRC staff recommends the Executive Secretary use enforcement discretion in this
inatter rather than seeking a Civil Penalty based on the following:
• This same problem was pursued under a January 14, 2010 DRC 30 Day Payment Demand
Letter, in which DUSA paid the penalty of $4,000 on February 17, 2010.
• On Febmary 17, 2010, in response to the January 14, 2010 DRC 30 Day Payment Demand
Letter, DUSA stated "Denison has instituted intemal procedures to verify that its contract
laboratories maintain their certifications for all reqinred constituents in the fiiture. "
• AWAL is now certified by the Utah SHL to perform analysis for THF under 8260C (as
deteriTuned by DRC staff inquiry of SHL on March 25, 2010).
• In a February 17, 2010 Letter, DUSA proposed a change to the DUSA QAP. In the proposal.
DUSA requested that: "Table 1 ofthe QAP be amended to require that the analytical
procedure to be used by the Mill's contract analytical laboratory for the analysis of THF
method SW8260B or SW8260C. " DUSA QAP (Rev. 5) was approved by the DRC on
February 23, 2010, which allows THF be analyzed by either EPA method SW8260B or
SW8260C.
APPENDIX 1
QA/QC
Tables
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APPENDIX 2
Monitor Well Concentration Tables for:
MW-l, 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
GWQS GWCL
Contaminant (Claw II) '"isl qir. 2009 2nd qtr 2009 "'3rd qir. 2009 4ttiqlr 2009
Jan - Warcn April • Jure July - Sept Ocl. - Dec
2/11.2009 =.•27/2009 8'252009 10/1S^i!009
Parameters Listen in Tab'« 2
Nulriants imqiL)
ftrnmoriia (a& 625 OW 006
Niirate * NitriiPi^s N) 10 2 5 02 02
He aw Meials ixiaU
Arsenic 50 12 5 <50 <5.0
3ervliium 4 1 <O.50 <050
:;admium 5 1 25 <0.50 t0 50
lihromium 100 25 <25 <?5
Zaaa'l 730 182 5 <10 <10
Z(JDD9' 1,300 325 <10 <)0
\ron 11.000 2.750 430 84
Lead 15 3 75 -.1 0 <1 0
Waiaanese BOO 200 83 79 84 57
Wercjrv 2 05 .0 50 <0 bO
Woi^de^uTi 40 10 = 10 <10
Nickel 100 25 t20 • <20
Selenium 50 12.5 <5.0 <5 0
&^er 100 25 *10 -cio
Thallium 2 05 <0.50 <0 50
rn 1/000 4.250 .:100 <100
Uranium 30 7 5 0 37 <0 30
Vanadium GO 15 <15 <15
Zinc 5,000 1.250 <10 elO
Radio IODIC s (DCI/LI
Gross Aiona 15 3 75 •0 7 (+-0 6) •LOI-Z-O.-i)
VOC tiiCVLi
Acetone 700 175 <20 -• <20
Benzene 5 1 25 <1.0 <1 0 •
2-Buiinone(MEK) 4,000 1.000 ^20 *20
CarSonTelrachionde 5 1.25 .;1.0 <\ 0
Cniorolorri 70 175 <1 0 <1 0
CtiiorOfTiBthaie 30 75 '•1.0 <1 0
De tiki ro mel nane 5 1 25 <1 0 <1 0
Naohiitiaiene 100 25 <1 0 <1.0
Teirafivdrn'uran (THFi .16 11.5 64 84 53 <2 0
Toluene 1,000 £50 '^ 0 <1 0
Xvlenesdoial) 10 000 2,500 <1.0 <1 0
Otfiers
Field DH (S U ) 6.5 • a 5 7.39 7 42
Fiuonde imo"! 4 1 03 03
Chlorde (mo-u 16 1'
Sullate (mu/i) 744 741
TDS(mol) 1.330 1.330
General Inoru^nlcs Ltsied n Pan 1E 1 (clf?lliil
ICarbonaie (mu/1i <1 0 <:1.0
BicarDonate [n^tfil 304 30B
Sodium ima'i) 158 164
Potassium (rnofl) 64 64
Uaonesium (mo/l) 63.1 58 1
Cak;ium (miyi] 165 155
Total anions (mea/Li 21 21
Toiai catjons fman/Li 20 5 198
Corcmnnfom m DC.U aiCMd itw GWCiS
Concarlialana snadH n ytlhM exNsd I In GWCL
(a) - Quinary mcc^mralmJ rvirkoirq avail
' Tha gioM d^tu ouL'-tng vjnanc* ncMOM ?0%
NotSimpiBdduri^aTdOidila' lJijn^ Tfis''_i^ri(rt»««itic>iod jij> 2007
o^Utjn'.rhv^iidy roqiirad LiiaaiiJrtiad Mia' <n ihi3~«a<i lord iat«2 rnontraohor
Bl DJi ol A tygr^gftob^ 4 joy EHf^irriad LJ> I
lommpif^ " -'"^
MW-2
GWQS GWCL
Contaminant (Class III) 2nd qtr. 2007 4th qtr. 2007 2nd qtr. 2008 4th qtr. 2008 2nd qtr. 2009 4th qtr. 2009
April - June Oct. - Dec. April - June Oct.'- Dec. April - June ' Oct. - Dec.
10/23/2007 6/4/2009 11/12/2008 5/29/2009 • 10/21/2009
Parameters Listed in Table 2
Nutrients (TTip/L)
Ammonia (as N) 25 12.5 <0.05 <0.05 <0.05 . <0.05 <0.05
Nitrate + Nitrite (as N) 10 5 <0.1 <0.1 <0.05 <0.1 1 <0.1
Heavy Metals IJJQ/L)
Arsemc 50 25 <5.0 <5.0 <5.0 • <5.0 <5.0
Beryllium 4 2 <0.50 <0.50 <0.50 <0.50 <0.50
Cadmium 5 3 <0.50 <0.50 <0.50 <0.50 <0.50
Chromium 100 50 : <25 <25 <25 <25 <25
Cobalt 730 365 <10 <10 <^10 <10 <10
Copper 1,300 650 <10 <10 <10 <10 <10
Iron 11.000 5,500 <30 <30 <30 <30 <30
Lead 15 8 <1.0 <1.0 <1.0 <1.0 <1.0
Manganese 800 400 „".-: ';„:,•:;,-,-• <10 <10 <10 <10 <10
Mercury 2 1 I-"',,,-: <0.50 <0.50 <0.50 <0.50 <0.50
Molybdenum 40 20 -,- * -<10 <10 <10 <10 \ <10
Nicl<el 100 50 - , . r ,-<20 • <20 <20 <20 <20
Selenium 50 25 -. ~: "~ 8.1 <5.0 9.5 13.4 . 11.6
Silver 100 50 <10 <10 <10 <10 <10
Thiallium 2 1 <0.50 <0.50 <0.50 <0.50 <0.50
Tin 17,000 8,500 - v" • <100 <100 <100 <100 <100
Uranium 30 15 10.3 8.68 8.32 11.5 10.3
Vanadium 60 30 7- i^" <t5 <15 <15 <15 <15
Zinc 5,000 2,500 14 <10 <10 45 14
Radiologics (pCfL)
Gross Alpha 15 7.5 '1.3 (+/-0.5) '1.4 (+/-0.4) *0.9 (+/-0.4) •1.1 (4/-0.4) '1.2 (+/-0.4)
VOC (//(VD
Acetone 700 350 <20 <20 <20 <20 <20
Benzene 5 2.5 <1.0 0.0 <1.0 <1.0 <1.0
2-Butanon9 (MEK) 4.000 2,000 <20 <20 <20 <20 <20
CartMn Tetrachloride 5 2.5 <1.0 <1.0 • <1.0 <1.0 <1.0
Chloroform 70 35 7: • 1 <1.0 <1.0 <1.0 <1.0 <1.0
Chloromethane 30 15 <1.0 <1.0 <1.0 <1.0 <1.0
Dichloromethane 5 2.5 'r.,' 1 <1.0 <1.0 . <1.0 <1.0 <1.0
Naphthalene 100 50 <1.0 <1.0 <1.0 <1.0 <1.0
Tetrahydrofuran (THF) 46 23 <1.0 <2.0 <2.0 <2.0 <2.0
Toluene 1,000 500 <1.0 <1.0 <1.0 <1.0 <1.0
Xylenes(total) 10,000 5,000 <1.0 <1.0 <1.0 <i.o • <1.0
Others
Field pH(S.U.) 6.5 - 8.5 "7t......... \^-=:.L 7.41 7.32 7.38 7.32 7.25
Fluoride (mg/l) 4 2 0.3 0.3 0.3 0.3 0.3
Chloride (mg/\) 6 7 6 7 6
Sulfate (mg/l) ^"Wisl - ^ 1,990 2.000 2,020 1,980 ' • 1,940
TDS (mq/l) 3,100 3.030 3.140 3,130 3,070
General Inorganics Listed in Pari I.E.1 .fc){2)(ii)
Cartxjnate (mg/l) ?T:-' • ^1.0 <1.0 <1.0 <:1.0 <1.0
Bicarbonate (rng/1) 396 373 362 384 3B8
Sodium (mg/l) 460 530 550 512 1 491
Potassium (mg/I) • t 10.5 10.2 10.6 9.8 1 9.8
Magnesium (mg/l) 100 95 96.4 95.4 91.7
Calcium (mg/|) _ „J 337 326 346 346 310
Total anions (meq/L) 48.1 48 48.2 47.8 47
Total cations (mec;/L) 45.3 47.4 49.4 47.7 44.6
NoiB
' The gross alpha countino variance eKceeded 20°-. _ _ _ _ _
Not Sarhpled during 2nd Quarter (June) 2007.' Ttiis weNwaaaampleij in July 2007 as part of a hydrogeologic a ind y pertornied by the Univera[ty of Ulah>Th6 stiidyi
requiredundisiurtiedwaterinjtiiajvelllorafleast2inoShs^^ • '." - - ^:^_ ' ^-^i^- , 7^'.-i;^ - -5fj^
MW-3
GWQS GWCL
Contaminanl (Class III) ••1st qtr. 2008 2nd qtr. 2008 "'3nJ qtr 2006 4th qtr 2008 "'1st qtr 2009 2nd qir. 2009 "'3nd qtr. 2009 41h qlf. 2009
Jan - March Apnl - June My • Sept Oct - Dec. Jan - March Apnl - June July - Sept • Oct - Dec.
3/19,2008 5,28/2008 8/12/2008 11/3/2008 2/9/200? 5/28/2009 ai6'2009 10/26/5009
1 Parameters Lisled in Table 2
Niitrents ima/Ll
Ammonia las N) 25 12 5 <0.05 <01 j •:0 05 <;0 05
Nitrate + Nitrite las N) 10 5 0 18 <0 23 0.3 0.2
Heavy Metals (ua.'Ll
Arsenic 50 25 <5 0 <5.0 <5.0 <5.0 <5 0
Servliiurn 4 2 <0.50 <0 50 .^0.50 <0.50 ^0.50
Cadmium 5 2.5 0 52 0.73 0.55 0.53 0 66
Chrcmium 100 50 <25 <.25 <25 ^25 <25
Cobalt 730 365 .^10 <10 ^10 <10 <10
Copper 1.300 650 <:10 • <10 <10 <:o <10
Iron 11.000 5.500 <J0 <30 c46 <30 -;30
Lead 15 7.5 <1.0 <1.D <1.0 <\.Q ^1 0
(Manganese eoo 400 T^. - 810 rs-488 ' 292 397 7B •
Mercurv 2 1 <D.50 <0 50 <0.50 <0.50 <0 50
Mo^bdenum 40 20 .;10 cio <10 <10 <m Nicnei 100 50 <20 --20 <20 <20 <.20
Selemum 50 25 13.8 20 1 192 •..•w^" 28.5^1 20.7 "7 7:34.2^= •24.5 • 46.3 =
Si^er 100 50 <;t0 cio <10 <10 <10
Thallium 2 1 09 086 0.B5 0 93 0.69 0 82 0.78 1.21
Tin 17,000 a.500 <100 --•100 <100 <100 <100
Uramum 30 15 ^ .31.3 -Z=28.5: = 23 8 '-.-•• •:-'>::27.7 in== 18.6S*.¥« -22.2 139
Vanadium 60 30 -.•>5 ..-15 <15 <15 •:15
Zinc 5.000 2.500 19 21 37 42 43
Radtoloqics loCLLl
Gross Alpha 15 7.5 •I.f ... ••0 1 ( + /-0.6) •1 2 (+/-0.5) •0.4 (t/-D.3)
VOC (uofLi
Acetone 700 350 <20 ..-20 <20 <20
Benzene 5 2 5 <1.0 •^1.0 <^.Q <•] 0
2-Butanone (MEK) 4.000 2.000 <:20 <2D <20 <20
Carbon Tetrachlonde 5 25 ^1 0 <1.0 <1.0 tl 0
Chloroform 70 35 <l 0 <1 0 ^1.0 <1 0
Chloromethane 30 15 <1 0 <1.0 *1.0 <1 0
Dichloromethane 5 25 <1 0 <1.0 <t.0 tl 0
Naphthalene 100 50 <] 0 <1.0 <1.0 <1 0
Teliahydrofuran (THFi 46 23 6.5 <2 0 <2 0 <2.0 3.8 *2.0 •=2 0 <2 0
Toluene 1,000 500 ^ 0 <1.0 <^.o <1 0
XvlenesilQlal) 10.000 5.000 <^ 0 <^.0 <1.0 .-1.0
Others
Field pH ISO } 65-35 6 71 6.97 6.63 706 I
Fluoride frng/l| 4 2 0.5 0.6 • 05 D.B
Chloride (mg^ 64 59 63 46
Sulfate (ma-l) 3.340 3.340 3.420 3.730
TDS (mq/h 4.300 5.220 5.250 5,100
eneral Inorpanics Listed in Pari i.E.1.(c)|2|(ii)
Caiborute (mq.1) <1 0 <1 0 <^ 0 <1.0
Bicarbonate (mg/l) 364 311 302 233
Sodium (mfl.'l) B46 836 780 746
Potassium (mt^'l) i;22 23 23 1 24
Maqnesium {muTl 247 249 243 237
Calcium (mq/l) 488 484 452 445
Total anions (meq/L) 77 3 76.4 78 1 82.9
Total caiions (meq. L) 82 81 e 776 74.9
CcrcEntranons m boiU ex;«ed ine GWQS
Cc4TccrlrjiDns stiaiiea e'lceed ine GWCL
lai ^ Quaricrly acceleraied mmilci'lni] pvnni
Not Samped during 2nd Chiai^ •FNs *eli wa6«^ T^is stuftyVfHiulnid^rtisiurtjrt w
l(i ai lAasi 2 moottie prux ui wriyiirQ. _" ^ -.j7._ sT^~~^~f-, -, " ,< 1 ^.', . ^ -~7T : " ~^ ~ ~, -i"- -.^ • • ijiii^f „'. J 1-.-" _ _ z
MW-3 A
GWQS GWCL
Conlaminan (Class III) l3t ulr. 2008 2nd Qtr 2008 3rd qir. 2008 •Itn qir. 2003 Isl qtr 2009 2nd qtr 2009 SrOotr 2009 4th qir. 2009
Jan - March Apr' - Jure July • Sept. Oct • Dec Jan • Marcn Aoni - June July - Soot. ' Oct. - Dec.
5r2&'?00e 8/12/2008 11/3-2008 Z'9.2009 5/28/2009 8/lfV2009 . 10/26/2009
Parameters Listed in TabUr 2 1
Nulnema (mg-Li
Ammoria las N) 25 12.5 <o.o 1 <0 1 <0.05 c0 05 <0.05 cO 05
Niirate *• N<trite (as N| 10 5
• ••
0.91 5, 1.33 1.5 1 2 I 2 1
Heavy Meiala (uo'L)
lArsemc 50 25
•• - -- .
<5.0 •:5 0 '50 <5.0 <5.0 <5.0 c5 0
Ber>'llium 4 2 0 77 1.61 ~-^-sLT.-2.4a - L2.59^= = •"^2.06^i 0.6
Cad"nium 5 2.5 0 /6 2 M 1 56 ZIS.« - = 2 31 1 37
Ctirnmum 100 50 <2b '25 '25 <25 <25 '25 <25
Coban 730 365 <10 <10 <.\Q <10 )2 12 12
Copper 1,300 650 '10 <10 <10 <:10 <10 cID cio
ircn 11.000 5.500 --'• ••-"^f '30 f30 <46 <30 <30 <30 c30
Lead 15 7.5 tl.O <1 0 0 <1.0 cl 0 '.I 0 '1.0
ManQanese 300 400 64 253 189 S^J80=== =~I,OSOs: .
c0.50
356 136
Mercurv 2 1 .;D.50 <0.50 <0.50 <0.50
=~I,OSOs: .
c0.50 <0.50 <0 50
Moivbdenum •10 20 <1D <ia cio <10 cio <10 clO
Nic'tel 100 50 ^20 21 <20 29 44 22 '20
Stjienium 50 25 .-==^73.4-. .. ==9^4 1 -^••==89== ===;ti7 - t .,. •..-^ 102 .^:--go.4,.'->': -•ji^ B7.1-s:~-.'
S'lver 100 50 •.rgy^. 1, <1D <10 <10 <10 = 10 '10 <10
Thallium 2 1 0.9 0.99 0.98 1.12!" s •- l.lt-\^ 0.63 09
Tm 17.000 8.500 <100 <100 <100 clOO clOO <100 <100
Ur^rlijm 30 15 ss;;s;i22.4;=% 1.-' -19=.- = •- .17.9 . -.^ v_l6 5 • ; IH;-17 JJ=S E." -i"=-.17 ^- - ! =19.5^.-.-
Vaiadium 60 30 <15 <15 <15 <15 c15 db <15
Znr 5 000 2.500 34 72 85 105 169 110 53
Raaiolooics fDC'.'L)
Gross AlDiia 15 7.5 '1.1 (-/-0.41 •-D1 f-.-O.Bl •0.9(4.-0.31 •2 8(+.-0.91 2.2 (.••-0.5) •0.6 (-••D 3)
VOC fun'L)
lAcetone 700 350 <20 ^ =3-:—_ <20 <20 <20 c20 c20
5 2.5 ^^^^^^^ <^ 0 ^ 4^- . <1.0 -rl 0 cl.O cl 0 cl 0
2-BulaPore (MEK| 4 000 2.00D ^^^^^^^ <20 <20 -^•20 c20 <20 '20
Carbon Teirachlorce 5 2.5 <\ 0 <1 0 ^1 0 <1.0 '1.0 cl.O
IChiorotorm 70 35 *1.0 <t.O <I.O '1.0 '1.0 <:1.0
Chioroiretnane 30 15 .;1.0 <1 0 <1.0 <1.0 -•1.0 cl 0
DiL'tiloromeihane 5 2.5 <1.0 -ig: . <^ 0 cl 0 <1.0 <1.0 cl.O
Naplilhalene 100 50 .:1 0 • <] 0 <1.0 cl.O cl.O cl 0
Tel'afvarofuran (THFI 46 23 <2.0 <2 0 <2 0 c2 0 <2.0 =20
Toluene 1.000 500 ..-A-J.' -<1 0 r^T ^1 D 'I.O '1 0 <1.0 cl.O
Xyienes(iOTai) 10.000 5.000 *1 0 .;1.0 <1.0 cl.O '1.0 *1.0
Oiners
Fieia oH is.u.) 65-8 5 73C Z£ 6.85 6 76 6.72 6.90 . 7.25
Fluoride (mq-Ti A 1 1 1.5 1 4 1 6 1 4 1
Chloride (Tnjl)
•
61 56 49 60 57 42
Sultate (mg,'i) 3.55C 3.570 3,730 3.640 3.640 3.870
IDS ImtHI sort 5.50D 5,690 5.660 5.750 5.570
General Inciruanrcs Lisied in Pat 1 E 1 (cK2)f
CarOonale (mfttf <1.0 cl 0 <1.0 rl.O <1.0 cl.O
Bifai-bonate (mtjl) 384 ; 287 265 360 305 424
Sodium (mq,'l) 837 en 761 674 764 773
PoiaEsium (mqfll 28 6 :. • 28.6 28 6 28 1 28.6 28
Magnesium (rmjr^ii 306 310 320 303 308 296
Caiciur" (mo/l) •196 496 481 436 486 478
Toial anions (mecvL) 81.9 80.8 83 6 82.7 86 6 8S9
Total ciiiions imeaLl 86.6 86.4 841 76.8 83.6 82 7
Co"c»™(ii nn6 n bold riceod me GWQS
Concernai.ans s^adwl ccnaiii ihr (i'ACL
Not^mpled during Znd Oiuner [June; 21X17 .Thr
Icii Bl leav 2 monihs piior lo umpr<r>g.
' r*¥!J*J*li!L'Bd^!^^tJV •
impled in Jufy 20OT u pan ol a trydrogeokxilc sluof peitormco by itw Urwercity Q1 Ulan Ihis aliKt^ requlrod urulctutMd iMler in tfiear unil*
MW-5
GWQS GWCL
Contaminant (Class II) "•'1st qtr 2006 2nd qtr. 2008 • 3rd qfr 2009 41h qtr. 2008 '"1st qtr. 2009 2nd qtr. 2009 "'3fd qtr. 2009 4th qir. 2009
Jan - March April - June July - Sept Oct. - Dec. Jan - March Apnl - June Jufy - Sept Oct - Dec.
a 1 a/2008 6/18/2008 8/11/2008 11/3/2008 ^•4/2009 5/16/2009 BI25I2Q09 . iaiZ'2009
Pa ram ete rs Listed in Table 2
Nutrients |mq/L)
Ammonia fas N) 25 6.25 0 51 036 0.3 0 47
Niirate 4. Nhrite (as N) 10 2.5 c0 05 OOS cO.t <0. f. 1
Heavy Metals (uaiL)
Arsenic 50 12.5 <5.0 '5 0 c5.0 c5.0 1
BerVlium 4 1 c0.50 cOSO cO.50 <0.50 ~\
Cadmium 5 1.25 •;0.50 cO 50 cO.50 '0 50
Chromium 100 25 --25 c25 c25 c25 ~\
Coban 730 182 5 ClO cio cio cio
Copper 1.300 325 •:10 •:no '10 cio
Iron 11.000 2.750 84 64 80 78
Lead 15 3.75 '•1.0 '1 0 cl 0 cl.O
Manganese 800 200 ==^203 V-^ - -258== il 154 -- 249 :.a..~'2ST,-291.121^-
Mercurv 2 0.5 <0.50 cO.50 c0 50 c0.50
MofytJOenum 40 JO •^10 clO ClO clO
Nickel 100 25 <20 --20 c20 c20
Selenium 50 12.5 c5 0 c5 0 c5.D <5.0
Sih/er 100 25 <10 clD cio ClO
Triaiiium 2 05 -^0.50 '0 50 cO 50 c0 50
Tin 17.000 4.250 <100 clOO <100 clOO
Uranium 30 75 cO.30 cO.30 '0 30 c0 30
Vanadium 60 15 <15 •=15 c15 c15
Zinc 5,000 1.250 cio clO <10 clO
Hadioloqics (pCi/L) •
Gross Alpha 15 3.75 •1.2 1+./.0 41 ... •0 4 {+/-0 31 "0.8 I+/-0 3I •D.6I+/-0 71
VOC (uq. L)
Acetone 700 175 '20 <20 c20 c20
Benzene 5 1.25 -.f.O cl.O cl.O <1.0
2-Butanone (MEKl 4,000 1,000 if.20 <20 <20 c20
Carbon Telracnioride 5 1.25 •cl.O cl.O cl 0 cl 0
Chloroform 70 175 <1 0 <1 0 <1 0 <1 0
Chloromethane 30 7.5 cl 0 cl 0 . cl.O -;1.0
Dchlorom ethane 5 1.25 cl 0 cl.O cl.O cl 0
Naphthalene 100 25 <1 0 cl 0 <1 0 cl 0
Teirahvdroluran (ThF) 46 11.5 9.2 10 66 8.5 4.2 11 62 6.4
Toluene 1,000 250 '1 0 cl 0 cl 0 cl 0
Xylenesftotafl 10.000 2.500 cl 0 cl 0 cl 0 cl.O
Oihers
Field pH (S.U.) 6.5 - 8 5 7 65 773 773 6.12
Fluoride (mg/l) 4 1 _ .1 09 1 ^1 •1 0.9 ^-.Ll..
Chloride (mq/l) 50 47 44 51
Sulfate (mq/l) 1.090 1,170 1.130 1,140
TDS (Tua'n 1.900 1,960 2,000 2,000
General Inorganics Listed in Pan 1 E i.(c)(2
Cartionate (mc^'l) <1 0 cl.O cl.O cl.O
BirjTbonate (mg/l) 357 368 363 393
Sodium (mq/l) 503 521 467 531
Potassium |mq/l| 75 77 7 7.77
Magnesium (mg-ii 38 39.2 38 • 39.4
Calcium (mq/l) 135 143 130 139
Total anicfis (meq/L) 30 31.9 31.1 31 6
Total caiions (mecj/L) 32 3ri.2 30.1 335
Ccrcenlranopi shaaeo mfinud me GWCL
Ml ^ OLanefiy aoc^nrfliMiniun.tciif^ij eve"!
Not SajifilKid durir^ ?ndjOuvU(^(June) 2007. Tna ivell i*ds~iarrplf!d In
tor al Iwsl 2 "Tiuiiitis Dri« lo sampdng . • " . ; . ^
JJy 2W7 % p4rt ot a hyt^oosologi: siudy p^ormad^yjtic Unlvcr^itv ol LRati * Ttia study required undiitLrtHKl wator nthii well ^
MW-11
GWQS GWCL
• Contaminani (Class ll) 1st qtr 2008 2nd qtr. 2008 3rd qtr. 2008 4th'qtr. 2008 1st qtr. 2009 2nd qtr 2009 3rd qtr. 2009 4th qtr. 2009
Jan - March April - June July - Sept. Oct. - Dec. Jan - March April - June July - Sept. Oct. - Dec.
3/18/2008 6/16/2008 8/5/2008 11/10/2008 2/lfi/2009 5/17/2009 8/31/2009 10/19.'20O9
Parameters Listed in Ta ble2
Nutrients (mq/L)
Ammonia (as N) 25 6 25 0.59 0 63 0.6 0.54 0.67 0.47 0.62 0.58
Nitrate " Nitrite (as N) 10 2.5 cO.1 <0 05 0 05 <0.05 c0 05 <0.1 <0.1 cO.1
Heavy Metals {UQIL)
Aisenic 50 12.5 ^5.0 c5 0 <5 0 <5 0 <5.0 c5.0 <5.0 <5 0^
Beryllium 4 1 •cO.50 <O50 <0.50 <0 50 <0.50 cO.50 <0.50 c0.50
Cadinium 5 1 25 <0.50 cO 50 •;0.50 cO 50 <0.50 c0.50 <0.50 <0.50
Cnromium 100 25 •:25 c25 <25 c25 c25 c25 <25 c25
Cobalt 730 1B2.5 <10 clO <10 cio <10 cio <10 <10
Copper 1.300 325 <10 •clO <10 ^10 clD <10 <1D <10
Iron 11,000 2,750 206 112 99 106 138 77 91 100
Lead 15 3.75 <1 0 cl.O <1 0 <1 0 cl 0 cl.O cl.O cl.O
Manganese eoo 200 70 74 70 73 73 67 79 B3
Mercury 2 a 5 <0 50 cO.50 cO 50 <0.50 cO 50 <0.50 . <0.50 <0.50
Molybdenum 40 10 <10 <10 <10 <10 ClO <10 <10 ctO
Nickel 100 25 c20 <20 c20 <zo c20 c20 <20 c20
Selenium 50 12.5 c5.0 <5.0 <5.0 c5.0 <5.0 <5.0 <5.0 <5.0
S\Wer 100 25 cio <10 <10 <10 cio <10 <10 clO
Thallium 2 0.5 c0.50 <0 50 <0.50 <0.50 <0.50 cO 50 <0.50 <0.50
Tin 17,000 4.250 clOO ClOO clOO clOO <100 <100 <100 ClOO
Uranium 30 75 <0.30 <0.30 <0.30 cO.30 <.0.30 cO 30 0.33 0.31
Vanadium 60 15 <15 cl5 <15 c15 <15 c15 c15 c15
Zinc 5.000 1.250 ClO <10 <10 <10 cio <10 <10 ClO
Radiologics (pCi/L)
Gross Alpha 15 3.75 •0.9 (+/-0 3L •1.2 (+/-0 5) •1 0 (•I-/-0.4) •0 1 <+/-0 3) •0 6 l+l-O 4) •0 8 (+/-0 4) •02 (+/-a6) •0.5 (+/-0.3)
. VOC (ucVL)
Acetone 700 175 <20 c20 • c20 c20 <20 c20 <20 <20
Benzene 5 1.25 cl 0 cl 0 <1 0 cl.O cl 0 cl 0 c1 0 cl 0
2-Butanone (MEK) •4.000 1,000 <20 <20 <20 <20 <20 c20 <20 c20
Carbon Tetrachloride 5 1.25 cl.O cl.O <1 0 cl.O cl.O cl.O cl.O <1 0
Chloroform 70 17 5 <1.0 cl.O <1 0 cl 0 •^1.0 cl.O <1.0 cl.O
Cnioromethane 30 7.5 cl.O cl.O cl 0 cl.O cl.O • ^1.0 . <1.0 <1 0
Dicfitoromethane 5 1 25 <1.0 <1.0 cl 0 cl 0 <1.0 cl.O <1.0 <1 0
Naphthalene 100 25 <1 0 cl 0 <1 0 cl 0 ; cl.O ^1 0 <1 0 <1 0
Tetrahydrofuran (THF) 46 11.5 <.2 0 <2.0 <2.0 <20 c2.0 32 <2.0 <20
Tol^»r^e 1.000 250 •cl 0 <1 0 <1.0 <.vo <1 0 <1 0 <1 0 cl.O
Xvlenes(total) to.ooo 2,500 <1 0 <1.0 <1.0 cl.O <1.0 cl.O <1.0 <1.0
Others
Field pH (S.U.) 65-8.5 7.91 7 87 7.83 7.95 7.92 8.03 803 7 91
Fluoride (mo/l) 4 1 0.6 05 05 0.6 0.6 0.6 06 0.5
Ctiloride (mtj/|| 29 30 29 30 29 26 26 30
Sulfate (mp/l) 1.040 1,050 1.080 1.100 977 i.oeo 1,090 1.040
TDS (mo/l) 1.750 1,790 1.7B0 1,830 1.910 1,850 1,840 1.830
General Inorpanics Listed in Part I.E 1 .(c)(21(ii)
Carbonate (mq/l) 3 cl.O cl 0 9 7 6 7 cl 0
Bicarbonate (m(VI) 300 356 380 351 356 366 374 389
Sodium (mtyi) BOB 632 631 655 581 548 602 641
Potassium (mq/l) 6 6.1 6 6.2 6.33 59 6.1 6
Maqnesium (mq/l) 10 10.7 10 5 11 12.4 10 11.2 11 4
Calcium (mg/l) 38 1 40.8 40.6 42.4 44.4 36 41.9 41 B
Total anions (meq/L) 28 9 28.5 29.1 29.8 27.2 29 29.9 28 9
Total cations (meq/L) 29 3 30.6 30.5 31.7 28.7 26 6 29.4 31 1
(a) = Monihly acceleraied moniloring event
• The gross alptia couniing variance eiceeded 20%
Not SariipletJ duririg2ridQuane7(Junft) 2O07^Ttil9Wili was BEmFJed m-Jiiiy 2007_as part ol a tiybrooebloglc study peilormed^tiy ihoUnlverBlfy tfUtari." Ttiis
fiyat least 2 monitM pricf to aarpino <7-.^ .i.l. -.7 ' •- - t^-v. -, •
stuity required uhdistuitMO water in itii& well
MW-12
GWCJS GV/CL
Contaminant (Class III) "'lslqtj.2008 2nd qtr 200B "'3id qtr. 2008 4lh qtr. 2008 "'istqir. 2009 2nd qU. 2009 '"3rd qtr. 2009 4th qti. 2009
Jan - March /\pnl • Ji^e Jiiy - Sept. Oct. - Dec. Jan - Marcti April - June July - Sept. Oct. - Dec.
3/ia^008 6/17i20DB afl 1/2008 11/11/2008 2/4/2009 5'1B'20O9 8/17/2009 10/13/2009
Parai^neiers Listed in Table 2
Nutrients (mcyL)
Ammonia (as N) 25 12 5 cO.OS c0.05 <0 05 <0.05
Nrtrale Nitnte (as N) 10 5 0.1 Oil 01 cO.I
Heavy Metals luQfL)
Arsenic 50 25 c5 0 cS.O c5.0 c5.0 •
Beryllium 4 2 c0.50 cO 50 c0.50 <0 50
Cadmium 5 25 c0.50 c0.50 c0.50 <0 50
Chromium 100 50 c25 c25. c25 c25
Cobalt 730 365 clO ctO <10 ClO
Copper 1,3C0 650 cio ClO cio cio
Iron 11.000 5 500 <r30 35 <30 100
Lead 15 7.5 cl.O cl.O cl 0 cl.O
Manqanese eoo 400 29 32 19 16 17 33 35 89
Mercurv 2 f c0 50 c0 50 cO 50 c0 50
Molybdenum 40 20 cio cio ClO . cio
NicKel 100 50 c20 c20 <20 '20
Selenium 50 25 79 108 10.2 19.7
Sifver 100_| 50 '10 clO ClO cio
Ttia Ilium 2 1 c0.50 cOSO c0.50 c0 50
Tm 17.000 8 500 '100 clOO ClOO ClOO
Uranium 30 15 - 16.8 - .-16 7-r^ ===17.8=-"=^ =16.9 . rr--^.18 -= . 16.7™^: •.-ii-17.2 (S^ 3?:r;20.8=,-"^
Vanadium 60 30 c15 cl5 cl5 c15
Zinc 5,000 2.500 cio cio cio cio
Radiologics (pCi/l)
Gross Alpha 15 75 . •12(W-D4) '0.3 (W-0.3) •1 8(t/-0.5) 1 •0 2 {+1-0 7)
VOC luttH
Acetone 700
5
350 c20 c20 c20 c2D
Benzene
700
5 2.5 '1 0 cl 0 cl.O cl.O
2-Butanone (MEK) 4.000 2.000 c20 c20 c20 c20
Cartxjn Tetrachloride 5 2.5 cl 0 cl.O cl 0 <f 0
Ctilorofoim 70 35 c1.0 cl 0 cl.O cl.O
Ctiloromethane 30 15 cl.O '1 0 <1 0 cl 0
Dichloromeuiane 5 2.5 cl.D • cl 0 cl.O cl.O
Naphtfialene 100 50 cl 0 cl 0 cl.O cl 0
Tetrahydrofuran (THF) 46 23 c2 0 3 c2.0 c20 3.6 3.4 3.2 2.3
Toluene 1.000 500 cl.O '1.0 cl 0 cl 0
Xvlenesftolali 10 000 5 000 cl.O cl.O cl 0 ; cl.O
Others
Field pH (S.U.) 6.5 - 5 7.08 7.0B 7 20 7 59
Fluoride (mcyi) 4 2 0.3 03 0.3 0.3
Chlonde (mql) 54 56 51 67
Sulfate (mcyi) 2 270 2,340 • 2.350 2,550
TDS (moll 3.530 3,800 3 820 3.830
General Inorqanics Lisled in Piirt F 1 |C)I21
Cart»nate (mcyi) cl.O cl 0 cl.O <1.0
Bicarbonate (mq'l) 399 430 445 443
Sodium (mq/1) 300-308 273 307
Potassium (mo/l) 13 12.9 12.8 12.9
Magnesium fmq/il 207 219 190 213
Calcium (mqfl) 525 544 446 506
Total anions (meq'L) 55.3 57 4 54 8 62.3
Total caiions (meO'L) 56 6 5B.9 50.2 56 5 1
Note
Co"Cl^rllatirln^8tladBd eifceed it's S'ACL
(al = Ouarieit^ acceiaratpo rricniioliO tr<eni ^
Hot SwrpJed dur[ng2r>dO(iarTer(juiio) 2007 !Ttiisviell vtti samoiea in'Juv ^OOJei padol a tiydrbgoologic suoy peifoniad by tia Univarsliy'c'l/iah Tins a tudf'i squired uridisturtiea waler in ttiiiwell -
lor at lusi 2 mofiBii pncr in sanfAinO- ..: ' ' -- - i . —
MW-14
GWQS owes. >>l'AI-l4(Qu^^lH'^ MuniionPiii
Corlaminanl (Clau III) .January ' 11 olr 2009 Marcti *CJil 2nd qir 2(XM Jui>« 3ra olr. 2r)0H 5«pt*nlDir 41tiqir £009 NovemDer OKepiDef
'Mo^t^|'y Accl. J«n - f/arcn '^kte-Mnl^ AccI '"Woiiltily AECI /Vpiil - June '• MontMy AocI '"Mon'til^ tvx:\ JiiiV 5epi '"Vtonffi^r AccI C>cl • Dec "MmUtil/Acri •••Mbpihiy AccI
I.2M'009 2^«009 il^'ZOOS 4i2Z(2D0B .=>lfv?(l00 W17/J009 7.'29-2009 e.'i»2O09 »n2009 in-2a'20O9 11/1»2D0e ia^a'2009
Ourdinulan Lisled <" Idbie 2
Nulr enli I mod.)
Amnionia (ti Nl 25 12 5 '.0 05 .0 05 OH .0 05
Nilrale i Nilnlfl |wN) in 'j CO 1 '11 1 .0 I '.0 1
He»v MeW^ (Ufl/L)
Araepic 25 '5.0 ^5 0 .•iO .5 0
Bmyiiijm 4 Z '0 60 .0 50 '.0 50 vO 50
Caorrijm b 2.5 i.ig 0.B3 1 02 _" 1 CK •
rJt^om.um 100 hO ^5 .25 '25 ' '25
na 365 • 10 • . \0 '10 '
1 .•300
t I.oeo
650
S.WO
•-10
viO .:3D
.10
.30
.10 •
'<30
LMd 15 7.5 .10 .1.0 .10 .1 0
Mercury
bOO
2
JIKI
\
= -il»==
• 0.50 ,-o"50 ' "™ '0 in .0 50
^.1Dlvttfl^nJm *o 2D ;10 .10 .10 .•10
NrW 100 50 • 20 .30 .JO ~'20
Seleniuir 50 JS .5 0 .50 '5 0
Sil.e-too 50 . 10 .•ID <-ir, '.10
rtia Ilium 1 'U.SO .0 50 .050 .O.W
tin 8 500 '100 '.too .100 .iioo
Ui»riuii ;io 15 -7.'.^krS. ==n.i.J'Z-
VaiMidiurn so 30 t15 .15 .15 '15
?nc 11 .11) 11 14
RaaiDloflict (pCi/L)
l-.mi.t Alpha 1^ 7S •| 2(l/-04) •1 2 I---0 1) •lB(-.'.li«| •1 1 (..•• 0.41
•
VOC (JO^Ll
Acaton* 7110 350 *?0 .20 '20 .20
5 25 .1.0 d 0 -.1 0 .10 .'
?-Biiiiinonii iMEK) 4.mo 2 0(,D *?0 '20 <Xl .20
CJrtiDn Tcluctiiondr 5 25 .1.0 .,1 0 .1 0 '1 Of
CliloTOloirn 7U 35 . 1 n '1 0 vl 0 ' ' .1 0
ChloromrtrLire 30 15 .1 0 .,1 0 .1 j 'id'
r>.[:fJo mm 1*1*1* i» •i 2.5 ->.n '1 0 '10 .1 0
\Bptilnci(n*
run al^/.^^o iTH'^)
100
4n
50
r.^
.1 0
J)
.1 0
'2 0
'.1 0
.•2 0
.1 0
-.20
Icilurni 1 000 503 -.1.0 .1.0 .:1 0 '1 0
•QOOU '.COO tl .1 0 '1 0 ^ .10
DlKrs
=ind pH(5U j tl s. a i eun 7^0 7 10 6.85
Fluonoe irrg'ri
Ghiluridu |nig,'l)
4 2 02
16
02
18
02
ly'
02
17
Sjllale (m[>'lj 2.150 2 140 • I.B20 2.190
TDS [m^ i) '.1C7D • 3 iii) 1.400 3,580
Gepe'si liorgapre Liw w) in Part I.L l.icl.Z (ii>
CartHiula |mi^l{ '10 '1 0 .1 0 • 1.0
BicaFtMnHle irrjli 457 460 453 4H1
ScJijpT (n^'l) 32,l 331 123' 338 '
PoliESium img") 11 ll.« 106 'HI Macjneaiuni [mc^tl
Cninum ^m^fl)
152
517
142
4.'^
125
483
152 •
506
tulal anlurB (mec^Lj 52 / 52 7 45 b 53 9 '
Tolal CHlinnlTniQ^Ll 526 •S) 486
CnWJ'IVTTI in hod KUBd |lV G^QS
[A] = 'Jutll4Pi ttX^'^WJ miT^i^nng l-^pnl
' TTHI LTIW mjt* a\jn n\ hmrvitm im ••in>> ^O''.
f«4 StTMaouwia^ijQujlJlJJw JOpf . 'Hw wl M H-bM n JiJi nC<T H Moliwil^^ Ihu U¥*™tJ o T>K>uiV "Uifnil inteutiKd I spifci-^j^'B^rf^wSiMMiiiiiia'.-.gB^i'; ' " " ii'»»1 lu 11HU 2 menu pm n Hrwaig
MW-15
GWQS GWCL
Contaminant (Class III) •-'ist qtr. 2006 2nd qtr. 2006 •"3rd qtr. 2008 41h qtr. 2008 '•"1st qtr 2009 2nd qtr. 2009 "'3rd qtr. 2009 4m qrfr 2009
Jan - March April - June July - Sept. Od - Dec Jan - March April - June Jufy - Sepr i Oct. - Dec.
3/11/2008 6/ia/200e a'122008 11/11/2006 2/9/2009 5/16/2009 6/19/2009 ^0/20l2009
Parameters Listed in Table 2
Nutrients imq/L)
Ammonia (as N) 25 • 12.5 c0 05 <0.05 <0.05 cO 05
Nitrate Nitrite |a9 N) 10 5 0 15 0 15 '0.1 0.1
Heavy Metals (utj/L)
Arsenii; 50 25 ^5 0 '5.0 <5.0 c5.0
Beryllium 2 cO.50 c0.50 c0.50 c0.50
Cadmium 5 2 5 c0.50 c0.50 .0 50 c0.50
C firom ium 100 50 c25 •.-25 c25 c25
Cobalt 730 365 ClO cio <10 c10
Copper 1.300 650 cio '10 <10 cio
Ircfi 11,000 5.500 '.30 c30 c30 c30
Lead 15 7.5 cl 0 cl.O <1 0 cl 0
Manqanese 800 400 cio clO clO cio
Mercury 2 1 <0 50 c0.50 cO 50 cD.50
Molybdenum 40 20 do cio cio CtO
Nickel 100 50 c20 <20 <20 c20
Selenium 50 25 ^r=- JOB i-_=: ' .u-.JM
Silver 100 50 '10 .-•10 cio cio
Thallium 2 1 c0 50 <0 50 cO.50 cO 50
Tm 17,000 6,500 •rlOO clOO '100 clOO
Uranium 30 15 - 48.3 • : ==.43.9 , -;• -•; 47 ' - '-'^ 45.7. ' 45.fi--r-44;»s;
Vanadium 60 30 c15 cl5 c15 .:15
Zinc 5.000 2,500 <10 cio 20 20
Radioloqics ipCi'L)
1 Gross ADfia 15 75 •1.1 (+.'- 04) •0 1 f*/ 0 3) * 1 0 Ul- 0 4) *0.6li/-0 3)
VOC (ua'Ll
Acetone 700 350 c20 c20 c20 c20
Benzene 5 25 ct 0 cl 0 cl.O cl.O
2-Bufanono |MEK) 4.000 2.000 c20 c20 c20 <20
Cartwn Tefr a ctiloride 5 2.5 cl 0 cl.O cl.O cl.O
Culorofomi 70 35 '.1.0 cl 0 cl 0 cl 0
Cfl lore metfiane 30 15 cl.O cl 0 cl 0 cl 0
Dctiloromeihane 25 cl.O cl.O cl.O cl 0
Napfitfialene 100 50 cl.O cl 0 cl.O • .^1.0
Telrarrydrofuraii |THF) 46 23 c2 0 .c2 0 c2 0 c2 0
Totuene 1.000 500 cl 0 cl.O '1.0 cl.O
Xvfene5(fotall 10.000 5000 cl.O cl 0 cl.O cl.O
Others
Field pH(S.U.) 6 5-85 6.99 7.25 7.13 6.96
Fluoride |mQrl| 4 2 0.2 0.2 02 0.2
Chloride |inq/r| 37 37 38 36
Sulfate <mq/l| 2 400 2.430 2,290 2.340
TDS (mq/l) 3.680 3,830 3,850 3.740
General Inorqanics Listed in Part I.E.1.|C)(2
Carbonate (mq/l) cl.O .-1.0 cl.O cl.O
Bicarbonate (rnq/l) 415 429 4fl1 463
Sodium (mq/l) 520 528 465 480
Poiassium (mq/l) 104 10.3 9.7 99
Maqnesium (mo/l) 158 164 ua 160
Calcium iinq/l) 444 451 393 440
Total amons (mecvL) 57 9 58 7 56 57 5
Total cations (meo/LI 58.1 59 2 52.2 56.3
Nnie
Conceniraiicrs in nnid t<ic«ud me GWOS
ConepnnAlliens sluded e-ceed he GWCL
la; - OuRnHi\f iu:(;i<leidied mDPiioiinq event
Not SdmpiwJ (A/.r(i 2nd Ciller gjiie) 2X7 .TIIUWBK was sarnplrtm July 21X17 ai pfliiol a r^dtngwogiusti^ Uraversitv of Ulati.-This study leqiiiodundiitu'Ded walw iriitiBwar
(or al i©3St 2 mcri*is pncr lo samolrio - - • -
MW-17
GWQS GWCL
Contaminant iciassiii) '"Isl qfr. 2008 2nd qtr. 2006 "'3rd qtr 2008 41h qtr. 20Ce '"1st qtr. 2009 2nd qtr. 2009 "'3nd qtr. 2009 4th qtr. 2009
Jan - March • April - June July - Sept Ocf - Dec. Jan - March April - June July - Sept. Oct. - Dec.
3/12/2008 5.'2e/2008 8/12/2008 11/12/2008 2/912009 5(29/2009 8'18.'2009 1Q-^21/2QQ9
1 Parameters Listed in Table 2
1 Nutrients imq/L)
lAmmonia (as N) 25 12 5 t0.05 cO05 c0 05 cO.5
Nitrate - Nifrrte (as N) 10 5 0.5 07 0.7 o.g
1 Heavy Metals (uq'L)
1 Arsenic 50 25 '5.0 c5.0 c50 c5 0
Beryllium 4 2 c0.50 cO 50 c0.50 cO 50
Cadmium 5 2.5 c0.50 cO 50 c0.50 .;0.50
Chromium 100 50 c25 c25 ^25 c25
Cobalt 730 365 '10 = 10 cio . clO
Copper 1,300 650 ClO ClO clO cio
Iron 11,000 5.500 c30 c30 ';30 c30
Lead 15 75 cl.O '1 0 cl.O cl 0
Miinqanese 800 iOO 108 92 t72 144
Mftrcury 2 f c0.50 cO 50 '0.50 '0.50
Molybdenum 40 20 clO clO ClO cio
Nickel 100 50 c20 <20 c20 c20
Selenium 50 25 76 7.9 9.6 11.6
Sifver 100 50 cio cio ClO clO
Thallium 2 1 c0 50 .-0.50 0.55 0.53 0 57 0 69 0.71 0 64
Tin 17.000 8.500 clOO clOO clOO clOO
Uranium 30 15 %:28.3 =:=29.4^SS ,=3^28 9 = ,.-....Z..£26=B.S - 126.7:^ ^^^.''^28.4 -"r=27B:== '£=27.3 A^r
Vanadium 60 30 c15 c15 .^15 cl5
Zinc 5.000 2.500 cio cio <10 cio
Radiologics (pCfL)
Gross Alpha 15 7.5 •0 9(+/- 0.31 •0.5 (+/-0 31 •1 2 (./-0.4) •0 9(W-0.4)
VOC (ua/L)
Acetone 700 350 .-.20 c20 c20 c20
Benzene 5 2.5 cl.O cl 0 cl.O cl.O
2-BufanO(ie (MEK) 4.000 2,000 c20 c20 c20 <20
CarbonTefrachloiide 5 2.5 cl.O .rl 0 cl.O cl.O
Chtorofomi 70 35 cl 0 cl 0 cl.O cl.O
Chloromethane 30 15 cl 0 c1 0 cl.O cl.O
Dchloromeihane 5 2.5 cl.O '^1.0 cl.O cl.O •
Naphthalene 100 50 .1 0 cl 0 cl.O cl.O
Tetrahydrofuran (THF) 46 23 c2.0 c2 0 '2.0 c2.0
Toluene 1.000 500 '1.0 '.1.0 .1.0 cl.O
Xylene sftotall 10,000 5.000 cl 0 cl 0 cl.O cl.O
Others
Field pH (S.U.) 65-8 5 7.29 7.10 7.20 6 97
Fluoride (mg/l) 4 2 03 03 03 03
Chloride (mq- l) 32 32 36 35
Sulfate (mg/ii 2.540 2.530 2.450 2,380
TDS (ma'l) 4.030 3.980 4,020 3.860
General Inorqanics Li.sted in Part I.E 1 .(cK2^
Carbonate (mg/l) '1.0 '1.0 cl 0 cl 0 •
Bicarbonate (mg/l) 474 461 493 494
Sodium (mq/l) 648 642 615 587
Potassium [mq/li 12.4 12.6 12 2 1 11 5
fi^aqnesium (mq/l) 188 166 178 178
Calciui'i (mg/ll 386 365 343 369
Total amons (meq/L| 61.6 6?.J 60 1 58 7
Total cations ^mea/Li 63 2 62.9 58 9 58 9
Cnncenifanoii n bda nici^i^d itie GWQS
Crt«;iinufliioii& itiaded e»:>^ea ttie GWCL
[-1) - Quaiuwly acceleMtea noiiloi no evept
• llie gross aiptia ccijnDng vanaicfi *«CfthdHd 20''.-
MW-18
GWQS GWCL
Contaminant (Class II) '"isl qtr. 2006 2nd qtr 2008 "'3rd qtr. 2008 4in qtr. 2008 '"isl qtr. 2009 2nd qfr. 2009 '•'3rd qtr 2009 4th qir. 2009
Jan - March April - June July-Sept. Ocl - Dec. Jan - March April - June July • Sept Oct. - Dec.
3/11/200B 6/4/2008 . a'12/2008 11/4/2008 2/11/2009 5/27/2009 a/25/2009 1{V21/2009
Parameters Lisled in Table 2
Nutrients (mo/L)
Ammonia las N| . 25 6.25 c0 05 cO.l c0.05 <0.05
Nitrate + Nrtnte las N) 10 25 c0 05 c0.05 cO.1 cO.1
Heavy Metals |uq/L)
Arsenic 50 12.5 <5.0 c5.0 • c5.0 <5 0
Beryllium 4 1 c0 50 . c0.50 cO 50 c0 50 .
Cadmium 5 1 25 cO.50 <0 50 c0 50 c0 50
Chnjmium 100 25 c25 c25 c25 <25
Coball 730 182.5 <10 cio ClO cio
Copper 1.300 325 cio cio cio cio
Iron 11.000 2.750 314 310 236 764
Lead 15 3 75 cl.O cl.O cl 0 cl.O
Manqanese 800 200 154 119 136 125 121 72 104 107
Mercurv 2 0.5 c0.50 <0 50 c0.50 c0.50
Molybdenum 40 10 ClO clO cio clO
Nickel 100 25 c20 c20 c20 c20
Sefeniim 50 12.5 c5.0 c5.0 c5.0 <5 0
Siher 100 25 clO clO clO ' cio
Thallium 2 0.5 . 1.11=^ 1.34 1 33-^ ' ---- 1^3=--•.-rT.-™.1.53'' •2.5->~-^
Tin 17.000 4.250 ClOO clOO ClOO ClOO
Uranium 30 7.5 — 42.4 =~ 44.8....= 4M = ^ 41.2~-L£ - :41.6 • =•44.7 —
Vanadium 60 15 c15 c)5 c15 cl5
Zinc 5 000 1,250 ClO cio 27 ClO
Radioloaics (oCi/L)
Gross Alpha 15 3.75 •1.2 (-/- 0.4) •0.4(t/-0.7) •1.7(+/-0.7) '1.4 I+/-0.4)
VOC (utfL)
Acetone 700 175 <20 c20 c20 c20
Benzene 5 1.25 cl.O cl.O cl.O cl 0
2-Butanone (MEK) 4.000 1.000 <20 c20 • c20 c20
Cart»n Tetrachloride 5 1.25 cl 0 cl.O cl.O cl 0
Chlorofonn 70 175 cl 0 cl.O cl.O cl 0
Chlonxnetfiane 30 7.5 cl.O cl.O cl 0 cl.O
Dicfiloromethane 5 1 25 cl.O cl.O cl 0 cl.O
Naphthalene 100 25 cl.O cl 0 cl 0 cl.O
Tetrahydrofuran (THF) 46 11.5 c2.0 c2.0 c2 0 c2.0
Toluene 1.000 250 cl.O cl 0 cl 0 cl.O
Xylenestfotal) 10,000 2,500 cl.O cl.O cl.O ClO
Others
Field pH (S.U.) 6.5 - 8 5 7 05 6.90 6.79 6 73
Fluoride (mo-l) 4 1 02 02 0.2 . 02
Chkiride (mtfl) 55 42 66 58
Sulfate (mol) 1.870 1,880 1,930 1,900
TDS (rrej'll 3,100 3.110 3,200 3,150
General Inoraanics L«led in Part I.E 1 (c)(2)l
Carbonate (mtfH <1 0 cl.O cl.O cl.O
Bicarbonate (mol) 423 436 449 468
Sodium (mgn) 193 197 188 •179
Potassium (mtyil 9.6 9 47 87 8.9
Maqnesium (man) 126 132 129 128
Calcium (mtyi) 546 578 543 549
Tolal anions (meqrL) 47.5 47.4 49.4 48 9
Total cations (meat.) 46.2 48.6 46.1 45.9
Conr.^ntr^tions in twlrt sxcssd ifie GWQS
Cunc^ptratioij &liadad Aicaaa ttie GV/CL
(a| - Quaitspy accelerated ironiionnq eveni
• f ne (jioss alptia nouniivarance aicnadad 20T^
NOI Samodtd duniio 2nd Quarter (June) 2007.' The
loratlMSi2 monBispjic lOMinplIno^ _•• ^
wen MBS uinplud u) July 2007as panol a rryttogooogKL study partCMni«dl>y Uia Uriheraitv ol Utalir TWE study requ'rwJunilsturlxamaiBr inm"w«1.
MW-19
GWOS GWCL
Contaminant (Class II) '"1st qtr. 200B 2nd qtr. 2008 '"3rd qfr. 2008 4fh qtf. 2008 "'lal qfr. 2009 2nd qir. 2009 '"3rd qtr. 2009 4ih qtr 2009 j
Jan - March April - June July - Sept Oct. • Dec Jan • Maruti Apnl • June July - Sept. Oct. - Dec.
3/11/2008 &4/2008 8/13/2008 11/4/2008 2/1 1/200B 5/27/2009 a/25/2009 1 a'19.2009
Parameters Listed in Table 2
Nutrients (moL)
Ammonia (as N) 25 6.25 c0.05 cO 1 c0 05 c0.05
Nitrale • NHrile (as N} 10 25 . 2.44 = - = 251=r= 24 24 22 2.2
1 Heavy Melals (in/Li
Arsenic 50 12.5 c5 0 c5.0 '5.0 cS.O
Beryllijm 4 1 c0.50 cO 50 c0.50 c0 50
Cadmium 5 1.25 c0 50 <0.50 c0.50 cO 50
Cfiromiuin too 25 c25 c25 c25 c25
Cobalt 730 162.5 '-10 '10 '10 cio
Copper 1.300 325 cio clO cio '10
Iron 11.000 2.750 .:;30 c3D c30 c30
Lead 15 3 75 cl 0 cl 0 cl 0 cl 0
Manganese 800 200 clO 136 cio cio ClO
Mercury 2 0.5 .0 50 c0 50 '0.50 '0.50 1
Ntolybdenum 40 10 <10 '.10 cio ClO
Nickel 100 25 c20 -.20 c20 <20
Selenium 50 12 5 10 6 '0.2 92 9.9 96 10.7 91 6.7
Silver 100 25 ctO '10 cio '10
Ttiallium 2 0.5 ",-=:= 0-521= -.. cO.50 cO 50 cO 50 cO 50 c0 50 cO 50 cO 50
Tin 17.000 4,250 clOO '100 '100 clOO
Uranium 30 75 ?.32 6.76 6.8 6 51 6.52 6.76 6 46 6 36
Vanadium 60 15 cl5 '15 cl5 c15
Zmc 5.000 1.250 '10 cio cio cio
Raaioioqics IpC^Ll
Gross Alofia 15 3 75 •1.3(W-0.4> •0 3 (+/-0 6) •2 1 (+/-0 8) •0.8 (•'/ 0 4)
VOC fiJq'L)
Acetone 700 175 • '20 c20 c20 c20
Benzene 5 1.25 cl.O cl.O cl 0 cl.O
2-Butanone (MEK) 4,000 t 000 v-20 c20 c20 c20
Carbon TetracfilorOe 5 1.25 cl.O cl.O cl 0 cl.O
Chloro'omi 70 17.5 cl.O cl 0 cl 0 cl 0
Chloromethane 30 7.5 cl.O cl.O cl.O cl 0
Dicnloromettiane 5 1.25 cl.O .:1.0 cl 0 cl 0
Naphthalene 100 25 cl.O .1 0 cl 0 cl.O
Tetrafrrinofuran (THFi 46 11.5 '2.0 c2.0 c2 0 c2.0
Toluene 1,000 250 cl.O cl.O cl 0 '1.0
Xyleneslfotal) 10.000 2.500 '1.0 cl.O cl 0 cl.O
Others
Field DH (S.U.) 6.5-8.5 7.63 7.3B 7.33 7.34
Fluoride (mtVl) 4 1 ^ri .1.1 =Z== 1 1=^= ==S1 1 •-K-T .1.1H.^ • r.ii.ri . - '1-..; ~' ' "-7 1 - -'T;
Chlonde (mo'i) 26 26 34 25
Sulfate lrn(>1) 507 446 510 434
TDS (mijl) 977 954 969 846
General Inurqanics Lisled in Pad ).E 1 .(cl(2l
Cartxjnale (man) ct 0 cl.O cl.O c1.0
Bicarbonate jing/)) 257 265 270 280
Sodium (mtyl) 113 110 110 69.7
Potassium (mcyi) 4 32 4 42 4 . 4
Maqnesium (mtVII 46.2 44 6 47 40
Calcium Imiyl) 140 139 137 119
Tolal anions (mecvL) 15.8 14.6 18.2 145
Total caiions (meoLl 158 155 156 13.2
Ccncenlialicins stiaaed eicpi^n ih>^ GWCL
(al - Ojurt^riy sLcelerated mcaiiiniln^j evHH
Net Samp<«?d cJunng zno Quaitar (Junfi 2007 * "^BiMtil iras sampled m July 2007 as pan ol a tryrTooeo'OQ« Bhxl/pttrformHd tiy [ne UnivKiiir^ "c< Utah 'This sludy required un'disttjiwa vater m Itiisvall
fw al Iea5l2 r^onihs pnw to sampling ^" yjz~Z'~ ',c _ ",.= J£;.'~ ~ "A, —•' • •~ . .- •,,••^7 "f i ™3£l=^'
MW-20
Ccnlamirunt
GWQS GWCL
(Class II)
MV1/-20 (Quarterly MonitorinQ)
Ccnlamirunt
GWQS GWCL
(Class II) 1st qtr. 2006
Jan - March
2nd qtr. 2006
April - June
6/17/2008
3rd qfr 2008
July - Sept.
8/11/2006
4th qtr. 2006
Oct - Dec.
11/12/2008
1st qfr 2009
Jan - March
2/2/2009
2nd qtr. 2009
April - June
5/14/2009
Srd qfr. 2009
Jufy • Sept.
8/31/2009
4th qfr. 2009
Ocf. - Dec.
1(^28/2009
Paramete rs Listed in Table 2
Nutrients \mg/L)
Ammonia (a? N| 25 6 25 0 69 0.5 0.13 0 23 0 36 0.47 c0.05
Nitrate • Nitrite (as N) 10 25 2.52 4.16 5.26 4 9 5.4 5 1 62
Heavy Metals (UQ/L)
[Arsanc 50 12 5 c50 c5.0 • c5 0 '5 0 c5.0 c5.0 • c5.0
Beryllium 4 1 c0 50 cO 50 <0.50 c0.50 c0 50 '0.50 c0.50
Cadmium 5 1 25 c0.50 c0.50 1 05 1.05 <0.50 c0 50 cO 50
Chromium lOO 25 =25 c25 c25 c25 c25 c25 c25
Cobalt 730 182.5 cio cio cio cio cio clO clO
Copper 1.300 325 cio cio cio cio cio cio cio
Iron 11,000 2.750 ^— c50 c50 c50 38 '50 .50 c50
Lead 15 3.75 cl 0 cl 0 cl.O cl.O cl 0 cl.O cl 0
Manqanese poo 200 77 60 29 38 42 42 17
Mercury 2 05 .-.0.50 cO.SO cO 50 c0 50 <0.50 c0 50 cO 50
Molybdenum 40 10 cio 11 11 clO ClO cio <10
Nickel 100 25 c20 c20 .-.20 c20 rSO <.20 •c20
Selenium pO 125 c5.0 cS.O c5 0 c5.0 c5.0 c5 0 c5 0
Sifver 100 25 • cio clO cio clO -^lO cio <10
T^^a^lillm 2 0.5 0.5.4=4 c0 50 •, ••W1.14-ZZ1,' c050 c0 50 cO.50 c0.5D
Till 17.000 4.250 clOO clOO clOO ClOO '100 clOO
Uranium 30 7.5 ' 34.6^. • • :- 29.8 = ----- ^ 19.8BS =; ' 17.9 i== • 15.4 r=-r 16^^ *z:13.8---7
Vanadium 60 15 ..15 c15 <15 c15 c15 c15 cl5
Zinc 5.000 1.250 41 90 52 75 32 40 40
Radioloqcs (oCtLl
Gross Alpha 15 1 3.75 1"-^ 1 •21(*'-0.5) 1 'I.SltAOS) | •04{i/-0.3) | •1.4(-^/-04) 1 '0.6((/-04)| •05(i/-0.6)| '0.8 f+/-0.4)
VOC luq/L)
Acetone 700 175 c20 c20 c20 <20 c20 c20 ' c20
Benzene 5 1.25 cl.O cl 0 cl.O cl 0 cl.O cl.O cl.O
2-Butanone [MEK| 4,000 1,000 --.20 c20 '20 c20 •;20 c20 c20
Carbon Tetrachloride • 5 1.25 cl.O cl 0 cl 0 cl.O ^1.0 cl 0 <1 0
Chlo-otorm •70 17.5 cl.O cl.O cl.O cl.O cl.O cl.O cl.O
Chlofom ethane 30 75 cl.O cl.O cl 0 cl.O '.1.0 cl 0 cl 0
Dichloromethane 5
100
1.25 cl 0 cl.O cl 0 cl.O ^1.0 cl 0 cl 0
Naphthalene
5
100 25 cl 0 cl.O --.1.0 cl.O -1.0 cl.O ' cl.O
Tetrahydrofuran (THF) Ab 11.5 '2.0 '2.0 c2 0 c2 0 •2.0 c2 0 t2 0
Toluene 1 000 250 cl.O .1.0 cl 0 cl.O cl.O cl 0 cl.O
)tvteiie3(loVdi> 10000 2.500 cl.O c1.0 cl.O cl 0 . rl.O cl.O • <1.0
Ottwrs
Field pH |S U ) 6.5 - 6.5
4
7 35 7.37 765 7.58 7.72 763 765
Fluoride (niii'll
6.5 - 6.5
4 f 02 02 0.3 03 03 0.3 0.3
Chloride (mq/|) : 57 57 64 59 60 62 71
Sulfate (mo'i) 3,860 3.910 3.720 3.600 3.910 3,760 3,990
TDS (mq/l) 5,570 5,650 5.690 5,760 5.B20 5,640 . 5.490 •
General Inoraanics Listed in Part 1 t.i [c)(2 (II)
Carbonate (mg/l) cl 0 cl 0 cl 0 cl.O cl.O <1 0 ' cl 0
Bicarbonate (mg/l) =^ 384 386 317 287 260 281 256
Sodium (mc).^l) 1.480 ].430 1,420 1,200 1.260 1,360 1,330
Potassium (mo'i) 61 9 50.3 53 7 44.8 45.6 49 8 49
Maqnesium (mu'l) 108 110 103 103 96 99.3 92.1
Calcium (mq/l) 395 388 374 361 339 358 3118
Total anions (meq/L) 89 1 89.7 89 9 81.7 86.1 84 8 • 89.8
Total cations (mea^L) 1 94 4 91 8 90.3 79 7 81 86.5 84
Concenl'abans stiaoeD enri'Pd ttie GWCL
MW-22
Contaminant
GWQS
(Class III
MW-22 (Quar1«rly Monitoring)
1st qtr. 2008
Jan - March
Parameters Listed in Tablo 2
2nd qtr. 2006
April - June
6/17/2008
3rd qtr. 2008
July - Sepi
6/11/2008
4th qtr. 2008
Oct. - Dec.
11/12/2008
1st qtr. 2009
Jan - March
2/2/2009
2nd qfr 2009
April - June
5/14/2009
Nutrients imq/L)
3rd qtr. 2009
July-Sept.
. 6/31/2009
4th qtr. 2009
Oci. - Dec.
10/27/2009
Ammonia (as N) 25 12.5 0 36 02 0.19 0.62 0 54 0.72 0.6
Nitrate -i- Nitrile (as N) 10 3 50 3 83 3.91 3.6 3.4 3.4 3.B
Heavy Metals (uq/L[
Arsenic 50 25 c5 0 c5.0 c5 0 c5 0 c5.0 <5.0 Beryllium ' 2.27 =£ 2 69^^ ^ 2.5-.-^3.t7i 2.45 2.31. . 2.5^.
Cadmium 25 •92.7 i-^ :=87.6 .^91.6-87.3. .91.4--
Chromium 100 50 <25 c25 c25 <25 c25 c25 c25
Cobalt 730 365 266 264 312 293 291 283 308
Copper 1,300 650 cio
11,000
19 ClO 10
5,500 <50 c50 34 c30 40 c30 c30
Lead 15 75 <1.0 cl.O cl 0 1.2 cl 0 cl 0 1
Manqanese 600 400 31,100i
Mercury cO 50
• 32.500 -32,500„ 33,3M 29,700 .32.200^ 31,800
<0.50 c0.50 cO 50 c0.50 cO 50
Molybdenum
<0.50
40 20 1188 7233 432; S16~ 620: 587-.
Nickel 100 50 118 135 140 -144 131-r 141-142^
Selenium 50 25 132 98 126 15.3 108 12.1
Silver 100 50 cio cio <10 cio ClO ctO cio
Thallium 1 •1.15- =^^--.1.04 .^'•"1.23 ^1.02 •,1.161--= -1.22
Tin
Uranium
Vanadium
17,000
30
60
8.500
•1 20-• -
clOO <100 ClOO ClOO UOO ClOO ClOO
15 52.4-46.7 '•.48.9 . 49.7 :~ ,47. iSI.7 "51.7.--
30 cl5 c15 c15 <15 :15 <15
Zinc 5,000 2,500 458 524 538 591 525 501 532
Radioloflics fpCi/L)
Gross Alpha 15 7.5 •5 4 (W- 0.1 •3 1(-h/-0 7) I •2 9(-r/-0.6} [ 5.5 (•I-/-Q.7) | •3 5(--/-0.7) •3.0 (+/-0.9) I 4.7 (-t^-O i
VOC (UQ/L)
Acetone 700 350 c20 c20 c20 <20 <20 c20 c20 Benzene 2.5 cl 0 cl.O cl.O <1.0 cl.O cl.O cl.O
2-BufanQne (fs4EK) 4.000 2,000 c20
Carbon Tetrachloride
<20 <20 c20 c20 c20 c20
25 <1.0 cl 0 cl.O cl 0 cl 0 cl.O Chloroform 70 35 cl 0 cl.O cl.O <1.0 cl.O cl.O cl.O
Chloromethanft 30 15 cl 0 cl 0 cl.O cl.O cl 0
Dichloromethane
cl.O
2 5 cl.O cl.O cl.O cl.O cl.O cl 0 cl.O Naphthalene 100 50 cl.O cl 0 cl.O cl.O cl 0 cl.O cl.O
Tetrahydrofuran (THR 46 23 c2.0 <2 0 c2.0 c2 0 c2.0
Toluene
c2.0 c2.0
1,000 500 cl.O cl 0 cl 0 cl.O cl 0 cl.O
Xvienes(totai) <1.0
10,000 5,000 cl.O cl 0 <1 0 cl 0 cl 0 cl.O cl.O
(3ther»
Field pH (5.U.: 6.5 • 6.5
Fluoride (mg/l)
Chloride (mq/l)
Sulfate (mp/l)
TDS (n^)
'6.2
64
5,130
7.110
^2.9-
48
5.870
7,620
6.28
-2.9:
64
5,520
7,900
• 6.23
-3.1"
54
5,240
7.920
6.33.— 7.04
2.9 2.6;
53 62
5.380 5,380
7,800 7,430
7.22
--3.2
67
5.190
7.600 General Inorganics Listed m Part I E 1 (0^2
Carbonate (mp/l)
Bicarbonate (mo'l)
Sodium (mg/l)
Potassium (mpl)
Magnesium (mp/l)
Calcium (mp/f)
Total anions imed/L)
>. l 0
436
260
26.2
975
463
116
Total cations (meq/L)
Noti: Concentrations in bold ejESe^nTowOS.
ConcBniiaiiora ^adad eacMd tlie GWCL.
1 Wot Samptw) aLpBo,tha"1 sl Quarter 2006"rnciiltoilno wnt M r»qutr#il'
116
cl.O
489
259
24.9
1,080
499
132
126
cl 0
4B2
262
25
1,050
484
125
123
cl.O
467
233
22.2
965
418
111
cl.O cl.O
480 501
256 243
23 5 24 5
994 963
432 454
122 122
115 113
<1.0
499
249
24
983
453
118
115
MW-23
GV^QS GWCL
Coftaminant TBA 1st qtr. 2008 2nd qtr. 20O3 3rd qtr. 2008 4th qir 2008 1st qir. 2009 2nd qtr 20O9 3rd qtr 2009 4th qtr 2009
Jan - March April - June July - Sept. Oct. - Dec. Jan - Marcfi April - June July-Sept. Oct - Dec.
3/18.2008 6/9/2008 a/5/2008 11/5/2008 2/11/2009 5/27'2009 8/18/2009 IO/gQ/2009
f Parameters Listed in Table 2
Nutrients {m^'U
AmmoniJ (as N) 25 cO 05 0.16 cO.l 0.09 cO.05 cO 05 c0.05 cD.05
Nitrate * Nitrite laS N) 10 03 02 0.27 0.3 03 03 0.3 0.1
Heavy Metals (uiVL)
Arsenic 50 c5.0 c5.0 c5 0 c6 0 c5.0 c5.0 c5 0 -:5.0
Beryllium 4 c0.50 c0 50 c0 50 c0.50 '0.50 cO 50 .:0.50 cD.50
Cadmiurh 5 cO 50 c0 50 c0 50 c0.50 c0.50 <0 50 c0.50 '0.50
Chrcmium 100 c25 <25 <25 <25 c25 <25 c25 <25
Cobalt 730 cio cio cio <10 clO clO cio • '•cio
Copper 1,300 ClO cio cio cio <10 cio cio cio
Iron 11 000 c30 c30 c30 c30 c30 c30 c30 =30
Lead 15 <1.0 cl.O cl 0 cl 0 cl 0 cl.O cl 0 • cl.O
iManoaiHjse 800 372 289 186 453 526 44 354 138
iMercury 2 c0.50 cO50 cO 50 c0.50 c0.50 cO 50 c0.50 cO.50
1 Molybdenum 10 cio cio cIG cio cio clO cio cio
Nickel 100 29 29 c20 23 22 c20 c20 ^
Seleniurn 50 c5 0 c5 0 c5 0 '5.0 c5 0 c5 0 c5.0 c5.0
Sifter 100 cio .-10 clO clO <10 clO cio ClO
Thallium 2 1 27 1 06 0.82 1 40 cO 50 1 43 0 64
Tin 17.000 clOO clOO clOO clOO clOO clOO • --100 ^100
Uranium 30 21.2 16.6 14.6 18 1 194 11.8 175 13 7
Vanadium 60 <15 '15 c15 c15 c15 c15 c15 c15
Zmc 5.000 33 29 26 36 50 29 36 17
Rad^Moaics (oCiU
Gros-i AlPf« 15 1 2.6 (0.5-h/-) •1 9(--/-0.5) •2.5 (+.•- 0 51 '1.1 u'07) •3.8 (t/-0.8l •2.0 (•!•/ 0 8) 4 3 (./-0 7| •1 5 (+/-0 5)
VOC (uq/L)
Aceinne 700 c20 <20 <20 c20 c20 c20 <S0 c20
Benzere 5 c1.0 cl 0 c10 cl 0 <1.0 cl 0 cl 0 •cl 0
2-Bufancne (MEKl 4.000 c20 <20 c20 c20 <20 c20 c20 c20
Cartxm TetracHkitde 5 cl.O cl.O '1 0 '1 0 <1 0 cl.O cl 0 cl 0
Chloroform 70 •;1.0 cl.O cl 0 cl 0 cl.O cl 0 cl 0 • <1 0
Chloromethane 30 cl.O cl.O cl 0 cl.O ^1 0 cl 0 cl.O cl.O
Dichloranelhane 5 cl.O cl.O C.I 0 cl 0 cl 0 cl.O '1 0 <1 0
Naphthalene 100 cl 0 '1 0 cl 0 cl 0 cl.O cl.O cl 0 <1 0
Tetrahydrofuran |THF| 46 c2.0 ' •:20 c2 0 c2.0 c2 0 c2.0 c20 '2.0
Toluene 1,000 '1.0 cl.O cl.O cl.O cl.O '1.0 cl 0 , cl.O
Xyl6nes(iolal) 10.000 cl.O cl 0 cl.O cl.O cl 0 cl.O <t 0 cl.O
(Dthers
FiekJ pH (S.U.) 6.5 - 8.5 7.49 7.05 6.60 6.71 6.74 6 97 6 90 6.96
Fluoride Img/I) 4 02 02 0.2 0.2 0.2 0.2 0.2 0.2
[Chloriilp (mcvh 7 6 6 5 7 g 5.6 6
]Sulfale (rng/J) 2,410 2.180 2.270 2.380 2.310 2.400 2,430 2 260
ITDS fmiT/l) 3,550 3,5^0 3,640 3,630 3.610 3.590 3,680 3,500
KGenerel inoroanicfl Listed m Part 1 E.I (c)
Carbonate (mq/l) cl 0 '1.0 cl.O cl.O cl.O cl 0 cl 0 cl.O
Bicarbonate imq/i) 275 306 260 227 209 321 235 302
Sodium (mq/l) 384 400 356 360 364 402 368 370
Potassium (mg/l) 109 10.4 10.5 10.3 13 9.4 10.4 9.4
Maqnesium (mg/l) - 146 159 156 146 156 148 151 150
Calniim (mq.l) 444 494 464 444 435 437 462 462
Total anions |meq/L) 55 51.7 53.4 51 7 5S.4 54 6 52 3
Toial nations i mflc^/L) 51 2 545 50.1 50.7 51 8 51 7 51 7
" Thq nros-* aiDha ccunbng vsriartie f^icwsded 27"^
MW-24
Conlaminanl
GWQS GWCL
TBA Conlaminanl
GWQS GWCL
TBA '"isl qtr 2006
Jan - Marcfi
3/12.2008
Znd qtr. 2008
April • June
5/29/2008
3nj qir. 2008
July - Sepi.
a/7/2008
4tfi qtr. 200B
Oct • Dec
11/11/2006
1st qir. 2009
Jan - Man^h
2/M009
2nd qtr. 2009
Apnl - Junv
5.3CV2009
3nj qir. 2009
July - Sept.
8/24/2009
4ih qtr. 2009
Oct. • Dec.
1Q/28/2009
Paramete rs Listed n Table 2
Nuirienis (nxVL) 1
Ammonia (as N) 25 5.58 0 32 . 06 0 41 0.34 0.33 0.68 0 75
NilralQ + Nitrite las N) 10 cO.1 0.12 0 09 0.16 0 1 0.1 cO 1 0 1
Heavy MeiaH (uo/Ll
Arsenic 50 c50 c5 0 c5.0 c5.0 c5 0 c5 0 c5.0 c5 0
Beryllium 4 c0 50 c0 50 cO 50 cO.50 cO50 c0.50 c0.50 cO.50
Cadrrium 5 cO 50 '0 50 0.88 091 cO 50 0.59 1 48 1 06
Chromium 100 c25 c25 c2b c25 c25 c25 c25 c25
Coball 730 cio cio ClD ClO CIO cio cio cio
Copper 1,300 cio cio <10 cio cio ClO cio ClO
iroi^ 11,000 3,580 2.740 1 360 1,520 1,590 1.110 926 927
Lead 15 cl.O cl.O cl 0 cl.O cl 0 cl.O cl.O cl.O
Manqanese 800 ... .1,660^^ \iz2.730^ . = ..^3,630 --r. - ' 4.180^ •> 3.4801-3.860 .' — 4,100 -Tt
Mercury 2 '0.50 cO.50 c0.50 cO.50 c0.50 cO.50. cO50 cO 50
Molybdenum 40 clO ClO cio cio clO clO cio ClO
Nickel 100 c20 c20 27 27 c20 c20 c20 23
Selenium 50 '5 0 <5D *5 0 c5.0 . 11 4 c50 c5.0 c50
Silver 100 clO cio ClO cio cio ClO cio cio
Tfialhum 2 c0.50 c0.50 0.65 0.53 '0 50 cO 50 06? 0.55
Tin 17 000 clOO ClOO ClOO clOO clOO ClOO ClOO clOO
Uranium 30 0.84 0.77 0.67 050 1.07 1 04 1.03 1 56
Vanadium 60 ct5 cl5 • cl5 cl5 c15 cl5 c15 cl5
Zinc 5.000 ClO 17 33 24 37 30 26 66
Radioloaics (oCi/L)
Gross Alpha 15 I t •02(03*i-\ 1 -0.9 (-f/-0 31 1 •i.2(D4+.'-l 1 'OSIV-O.S) 1 •14(+/-0.4) 1 -1.2 (+/-0.4) i "0 9 (t/-0 4) | "1 3 [+/-0.4)
VOC (uaiU
Acerone 700 c20 c20 c20 c20 c20 c20 c20 c20
Benzer* 5 cl.O cl.O cl.O cl 0 cl 0 cl.O cl 0 cl.O
2-Butanone (MEIQ 4.000 '20 c20 c20 c20 c20 c20 c20 c20
Cartxin Tetrachlonde 5 cl.O cl.O <1 0 cl 0 cl.O cl.O cl.O cl 0
Chloroform 70 cl.O cl.O cl.O cl.O cl 0 cl 0 cl.O cl 0
Chloromethane 30 cl 0 cl 0 cl.O cl.O • cl.O cl 0 cl 0 cl.O
picfiloromeihane 5 ' cl.O cl.O cl 0 cl 0 cl.O cl 0 cl 0 cl.O
Naphthalene 100 cl.O cl.O cl 0 cl 0 cl.O cl 0 cl.O cl.O
Tetrafiydnjfuran (THF) 46 c2 0 c2.D *?0 c2 0 c2.0 c2.0 c2.0 c2.0
Toluene 1.000 cl.O cl.O cl 0 cl.O cl.O cl.O cl.O cl.O
Xylenesftotal) 10,000 cl 0 cl 0 cl.O cl 0 cl.O cl.O cl.O cl 0
Ot tiers
Field tjHiSU.) 6.5- a.s 6 91 7 14 6 75 &.9Q 6.83 6.59 6.70 7.36
Fluoride irr^) 4 02 0.1 0.1 0 1 0 1 0 1 0 1 0.2
Chlona* (mq/l) 44 45 39 43 44 44 37 46
Sulfate (mo^) 2.560 2.770 2,730 2 BOO 2,630 2.670 2,740 2.950
TDS(mofll 4 090 4,030 4,270 4,170 4.310 4.220 4.210 4.120
General Inorqanics L'Sled in Pan I.E.1 lc 21fiil
Carbonate (rrxyi) cl 0 cl.O cl.O cl.O cl 0 cl.O cl.O cl 0
Bicarb onaie (mgH) 520 168 270 225 231 233 142 257
Sodium (rngfl) 469 502 514 517 538 469 518 486
Pol&Mlum (mo/l) 12.9 12.7 13 13.2 14 12.2 13.1 12.6
Magnesium (mo'i) 167 186 181 182 164 164 177 177
Calcium (mol) 462 500 492 .194 466 441 503 4S8
Total anions (meq/L) 63.1 62 62.4 63.2 59.9 60.7 60 4 67
Total cal'ons (mea/L) 58 2 62..1 62 2 52.5 60.5 57.1 62.6 • 60 5
Concantr«lion« i^advi axcced Iti* GWi^L
' ItiF gn^u alptia counting vananc* ocMdn 20'.
MW-25
Contaminant
GWQS GWCL
TBA
.
Contaminant
GWQS GWCL
TBA 1st qtr. 2008
Jan - March
3/18(2006
2nd qir. 2008
April - June
6-12/2008
3rd qtr 2008
July - Sept.
a/4/2008
4th qtr. 2008
Oct. - Dec.
n/io'20oe
1st qtr 2009
Jan - March
2/3/2009
2nd qtr 2009
April - June
5.13/2009
3rd qtr. 2009
Jufyi - Sept!
8/24/2009
4th qtr. 2009
'Oct. - Dec.
ICVI3-2009
Parameters Listed in Table 2
Nufnents (mg/L)
Ammonia (as N) 25 0 49 1 0.67 0.4 0 39 036 0.5 j 0.51 0.49
Nitrate - Nitrite (as N) 10 cio cO 1 c0.05 c0.05 0 1 cO.1 1 cO 1 cO.1
Heavy Metals (uq-Ll
Arsenic 50 c5 0 c5.0 c5 0 .5 0 c5.0 '5.0 c5.0 c5 0
Beryllium 4 cO.50 cO.50 c0.50 cO 50 . 0 50 c0 50 cO 50 c0.50
Cadmium 5 1 23 1 1<) 1.27 1.20 1.37 1 24 1.34 1.32
Chrcnium 100 c25 c25 c25 c2S '25 c25 c25 c25
Cobalt 730 10 10 -.10 11 cio clO '10 10
Copper 1,300 <10 cio cio cio cio ClO cio <10
Iron 11,000 c30 c30 '.30 c30 c30 c30 c30 c30
Lead 15 cl.O cl.O •cl 0 '1 0 1.7 cl.O cl.O cl 0
Manqanese 800 1,810'r ^=T,670=:' ^^•1.050-^=f.eio -F^ >'7S1.S40.:~j= ==1.(H»vi" "^SJ.T'JO^:
Mercury 2 cO50 c0 50 c0.50 c0 50 cO 50 cO 50 c0.50 c0.50
Mofybdenum 40 11 11 11 11 11 11 12 12
Nickel 100 c20 c20 c20 c20 <20 c20 c20 c20
Selenium 50 c3.0 <50 c5 0 cS.O c5 0 c5.0 c5.0 c5.0
Sifter 100 '10 cio '10 clO cio cio clO cio
Thallium 2 0 95 0.93 0.86 089 0.92 0.9 • 096 1 .
T.n 17.000 <100 '100 clOO clOO clOO ClOO clOO clOO
Uranium 30 5.94 6.08 5.56 5.35 5.87 57 6.02 6 28
Vanadium 60 <15 52 ci5 c15 c15 cl5 c15 c15
Zinc 5.000 <10 '-•10 cio cio 30 cio cio clO
Radiologics ipCi'L)
Gross Alpha 15 1 [•19(04+/-ll •1.4(+/-05| 1 -12(04+/-) | '0.5 (-/-0.3) | •13(-/-04) 1 "O.S I+/-0.4) | "0.7 (+/-0.3) | '0.7 (..•-0.7)
VOC (uo/L)
Acetone 700 c20 •-.20 c20 c20 c20 c20 c20 c20
Benzene 5 cl 0 cl.O cl.O . cl.O '1 0 cl.O cl.O cl.O
2-Butanone |MEK) 4,000 <20 c20 c20 c2D c20 c20 c20 c20
Cartxxi Tetrachloride 5 cl.O cl 0 '1.0 cl.O cl.O cl 0 • • cl 0 cl.O
Chlorofomi 70 cl.O cl.O cl.O cl 0 cl.O cl.O cl.O cl.O
Chloromethane 30 cl.O cl 0 cl.O cl 0 cl 0 .1.0 <1 0 cl.O
Dichkjrom ethane 5 cl.O cl.O cl 0 cl.O .-.1.0 cl.O <1 0 <1 0
Naphthalene 100 cl.O 'I.O cl 0 cl.O cl 0 cl.O cl.O cl 0
Tetratrydrofuran (THF) 46 c2.0 c2.0 c2 0 <2.0 c2 0 c2.0 c2 0 <2.0
Toluene 1.000 cl.O cl.O ^1 0 cl.O '1.0 cl.O cl 0 cl 0
Xyienesftoiall 10.000 cl 0 cl.O cl.O cl 0 cl.O cl.O cl.O cl 0
Others
Field phiS.U.) 6.5 • 8 5 7 69 7 30 6 85 7.21 6.86 718 7.00 7 43
Fluoride [mgltj 4 0.3 0.3 0.3 03 04 0.4 0.3 03
Chloride Imq/li 32 25 28 30 31 30 30 34
Sulfate ima/\) 1.750 1.610 1,710 1.600 1.630 1.690 1,580 1.650
TDS (mg/l) 2,710 2.770 2,700 "^^^====, 2.750 2,710 2,740 2,690
General Inoraamcs Listed in Pan i.E.1 .(ci
Carbonate fmo/l) cl 0 cl.O cl.O cl 0 cl.O cl.O cl.O cl.O
Bicaiixviate imq/i) 415 381 400 392 392 399 413 412
Sodium (mq/ii 306 306 310 321 255 279 310 296
Poiassium (mo/l) 98 9 48 10 98 8.4 8.5 99 9 78
Maqnesium (mc^l) 120 130 134 . 129 116 116 121 116
Cakium (mcVU 353 363 391 383 331 333 361 352
Total anions Imeq/L) 44.1 40.4 43 44 7 4V2 42 5 40.8 42 1
Total cations (meO/L) 41.2 43.4 44 3 43 9 37.4 38 5 41.7 40 3
Concerliatvons sraaeo e^cwid lib GWCL
mosSe??^ wamaarequifMl.
MW-26
Conuminant
GWOS GV^CL
(Cla&s III) Conuminant
GWOS GV^CL
(Cla&s III) JinuAry
'"Morwiy f*X\.
V2yXC6
Utqu. 20D9
Jan • Maicti
2/2/2009
Man:ti
'"Monltity AccI
3/l»2009
Ap-il
'"Mondity Accl.
4'22'2009
2r%dqtr 2009
Apnl' June
viosooa
June
"'Monftly Accl
fin 7/2009
July
'"Moninty Acd
7/2a'2O09
3ra gir 20C9
July • Sept
O'l 9/2009
SenteTtier
'"Mantlitr fcol
9ISfZ009
4*101 !009
Oct - Dec
IQri3'20a8
NovemtMi
'"Monttily Accl.
11/17/2009
Dactimtiei
"^•nttily Accl
12/1/2009
Paramsieis Lc,iHd m TatilB 2
Nuinenis [mci/l)
Ammnnia {as N)
tJitraiB 1 Nitrits (u Nl
25
ID
12i
5
0 19
03
0.05
03
1 022
I 09
0 41
0 1
Heavy MtuiR lugl)
SO 35 'SO '5 0 c5 0 .5 0
Beryllium 4 " 2 '0.50 cOSO c0 50 .0 50
Cadmiurr 5 2S .0.50 .0 50 c0 50 <D.5D
Cli'Urrijrn lOO 50 .25 .15 <25 <25
730 ".365 '10 -.10 '10 .10
Zooosr 1 30O 650 <10 clO clO <10
\rct\ 11 OOO b.bO0 513 732 624 es2 Lsad 15 75 <1 0 cl 0 '1.0 '1 0
Msnaaneia aoo 400 ~i',o4o -r^ .'2=Z t.tOOi: .. ••—1.J«0--:~" i;; i,ita
^"•,' .
- - IS90^
Meicj'v 2 \ cO 50 '0 50 •<D.50 'OSO
MDiyboerLir 40 20 clO '10 <1D '10
r^ic'el 100 50 •c20 '20 '20 .20
Selenium 50 7b ISS '5 0 • 5.0 .5 0 Sifvsr 100 50 clO .10 <10 .10
niallium 2 1 rOSO' .0 50 ' '0 50' cO60
Tin I7.t)00 8.500 clOO clCO ' .100 ClOO
Uranium 30 1^ ~.??-t:.:\ •^43'' ' = 3(2,1 \^ ^ 50 = ;-_ - . '>;gaoy^
60 30 ""•'IS ' '15 " .15 • <15 "
Zinc S.OOO 2.M0 20 1 1 ClO ClO
Hidialogict (pCi-L)
STIM Alptia IS 75 3 8 (W. 061 4 9|i'-0 7) 4 6 (W- O.S) •3 4 (w-1.0)
VOC (uflT.)
Ac Blond 700 350 •.40 .100 <20 c20 <!0 .20 .30 c20 c2a <20 c20 '20
Bandana 5 2 5 .2 0 c5 0 .1 0 '1 0 ,1 0 .1 0 .1.0 cl 0 cl 0 cl.O '1.0 '1 0 7BL\arorc (MEK) 4000 2.ooa '" <40 ' .100 '20 .20 ^0 '20 .20 c20 c2D '20 '20 .20 Carooi TeirBcmoi* 5 2.5 '2 0 c6.0 '1.0 '.1 0 cl.O .1 0 • 1.0 cl 0 cl 0 ' <1 0 " '1.0 '.1 0 Chlarolorm 70 35 I. J» -rjw,- „ ,,.'wo"'
Ctiloro>Tiettian« 30 15 _ <^2 0 _*5_0 cUJ '1 0 .1 0 ^1.0 <yo_ cl.O .1 0 .10 ^ .S' O. •cl 0
Din riiCKomsi nana 5 25 ^^37 _"47^ -U: a - "Ti
Napninaitn* too 50 '..2.0 c5 0 cl.o" '1.0 .10 f^ 0 .1 0 '1 0 <1.0 cl.O '1 0 . ~ '1.0 TeiratiydrolLran {tyiP\ 49 23 c2 0 . ^0 <20 '?0
1.00Q 500 .2.0 c5 0 cl 0 '1.0 .1.0 '1 0 -.1 0 '1 0 .1.0 .1.0 vl 0 '1.0 XjienestBtai) 10.000 SODD '2.0 c5 0 <1 0 .1 0 .1.0 '1 0 cl.O .1.0 .1.0 cl 0 '1 0 '.l 0
Otfiers
Field pH (S.U)
Fluunde imoil)
Chlnrida {iriyii
Buluic- (rn^ii
tDS (moi)
6.5 85
4 2
706
03
49
I.aso
3,260
7 18
0.3
56
i.SIO
3.340
7 19
0.3
83
1 520
3,010
7M
03
58
1.890
3 140 - -• .•eneril IncvQincB LiEied in Pan I.E 1 (Cj|2)
Caitrni jis (mfyl)
BcartxmBia (mgrl)
Sralium irriyli
PotaMiijir rrrgfi)
>^a[]rc5<urr (mu-ii
CalC'Ljrr (11(^1)
Idtal anions WM/I)
Total cBBons (mag/Lj
'1 0
392'
177
se
162
4fr4
46 9
45 4
....
«1 0
400
20?
10
1^2
440
4a
439
cl.O
"^387'
176
97
131
487
' 39 S
43 1
.1.0
' 415
212 '
11 2
157
502
47 9
47 5
1^1 - Uonin^ J^CCatarilllJ rrDn,iarirg n*<iL
" rht jfjik^ottn cOk/'Lr'O filirca rmcattlvl X '
MW-27
GWQS GWCL
Contaminant TBA Isf qtr. 2008 2nd qtr. 2006 3rd qir. 2006 4th qtr 2008 isf qtr. 2009 2nd qtr. 2009 3rd qtr. 2009 4th qtr. 2009
Jan - March April - June July - Sept. Cel. - Dec. Jan - March Apnl - June July - Sept. Oct. - Dec.
3/17/2008 G/2J2Q0B 8/6/2008 11/4.2006 2/16/2009 5/29/2009 8/18/2009 10/12/2009
Parameters Listed in Table 2
Nutrients (mo/L)
Amnwnja (as N) 25 c0.05 c0.05 cO.1 <0.1 <0.05 cO.05 cO 05 c0 05
Nitrale - Nitrite (as N) 10 54 6.26 5.63 591 5.7 cO.2 62 5.2
Heavy Metals (uo/'U
Arsenic 50 c5 0 <5.0 <5.0 <5.0 c5.0 c5.0 c5.0 c5.0
BervHium 4 cO.50 c0.50 c0.50 cO 50 cO.50 c0.50 CO 50 . c0.50
Cadmium 5 c0.50 c0.50 c0.50 cO.50 cO 50 c0.50 cO 50 cO.50
Chromium 100 <25 '25 c25 c25 c25 c25 <25 c25
Coball 730 ClO <10 <10 ClO cio cio <10 cio
Copper 1,300 ClO cio ClO ClO cio cio cio cio
Iron 11,000 264 c30 c30 c30 c30 <30 c30 <30
Lead 15 cl 0 cl.O <1 0 cl 0 cl.O cl.O <1.0 cl.O
fVlarxjanese BOO <10 ClO ClO c10 <10 c10 <10 cio
Mercury 2 cO 50 cO 50 cO.50 c0.50 cO.50 c0 50 cO 50 '0.50
Molybdenum 40 <10 ClO <10 clO cio clO cio cio
Nickel 100 c20 '•20 <20 <20 c20 c20 c20 -.•20
Selenium 50 85 101 10.3 11 2 11.8 11 8 10.9 12.3
Silver 100 cio <10 cio cio <10 cio ClO cio
Thallium 2 cO 50 <0.50 cO.50 c0.50 cO 50 cO 50 <0.50 cO 50
rm 17,000 <100 ClOO <100 clOO ClOO ClOO clOO clOO
Uranium 30 :i_ 31.5^ ^_-31.1^ • =- .30.9 - ^31.1: 29.2 32J
Vanadium 60 cl5 <15 c15 <15 cl5 cl5 c15 • c15
Zmc 5,000 ctO ClO cio cio <fO <10 c10 cio
Radioloaics (pCi/L)
Gross Alpha 15 1 •2.0 (0 4t/-) •1 9(0 5+/-) •2.1 (0 5+/-) "1.3 (-tV-O 8) •2.4 (+/-0.6} •1 9 (+/-0 5) 3 1 (+/-0.6) •0.9(t/-0fll
VOC (UQ/L)
Acetone 700 <20 c20 c20 c20 c20 <20 c20 <20
Benzene 5 <1.0 <1.0 cl.O cl.O cl.O cl 0 cl.O • cl 0
2-Butanone (MEK) 4,000 <20 c20 c20 c20 c20 c20 c20 c20
Carbon Tetrachlonde 5 cl 0 cl 0 cl.O cl.O • cl.O cl.O cl.O cl.O
Chloroform 70 cl.O cl.O cl.O <1.0 cl.O c1.0 cl 0 cl.O
Chloromethane 30 cl 0 cl.O cl.O cl.O cl 0 cl.O cl 0 cl.O
Dichloromelhane 5 cl 0 cl.O cl 0 cl.O cl.O cl.O cl.O <1 0
Naphthalene 100 cl.O cl.O cl 0 cl 0 cl.O cl 0 cl 0 cl 0
Tetrahydrofuran (THF) 46 <2 0 c2.0 c2.0 c2 0 c2.0 c2 0 c2 0 c2.0
Toluene 1,000 <1 0 cl.O <1 0 cl.O cl.O cl 0 <1.0 cl.O
Xvlenesdoial] 10,000 cl.O cl 0 <1 0 cl.O cl.O cl 0 <1 0 cl.O
Others
Field pH (S.U.) 6.5 - 8.5 8.10 7.55 7.37 •7 41 7.42 6.62 7.40 7 75
Fluoride |mq/l) 4 0 8 oe 0.7 0.7 0.7 0.7 07 07
Chlonde (mq/l) 37 39 40 28 41 42 40 44
Sulfate ima/\) 428 453 456 461 442 414 480 456
TDS (mo/|) 1.050 1,030 1.100 1.120 1.150 1,130 1,100' 1,030
General Inoraanics Lifted in Part I.E t (c)(:
Carbonate (mo/l) cl 0 cl.O cl 0 cl.O cl.O cl 0 <1.0 cl 0
Bicarbonate (mo/l) 456 424 440 434 436 446 439 456
Sodium (mffll 71 75 5 77.9 77.1 77 9 74.1 70 3 70.7
Potassium |mcj/l) 4.6 4 36 4.52 4.39 4 82 4 4.3 4.45
Maanesium (mg/]) 66.7 773 81.2 79 9 82.2 71 2 73 3 73 5
Calcium fmo/l) 156 177 186 184 181 155 170 169
Total anions (metvL) 179 18 18 3 18 17.9 172 18.B 166
Total cations (m«a/L) 16.5 18.6 195 192 19.3 169 17.7 17.7
Concantiallon.'^ yiadad eicaad ins GWCL
' ThB oroH dlpna cojni n^ va'JBnca ^icandBd 2D'.^
Not Sampled duiiPOZnoOuarlei (Ju'nn) 2(X)7 ;Tti(t*Bll Waa^Bmptod in"Julv2007 as part ol a fiyorngedogic sluOy peiloimea tiy ttie UnNersity"ol Uieli.-Ttiis sluOv racjjirBd undiBturtwiJ yTatsr in tfHs-well lof at least 2 momiu pnc* tosompiinQ._ _.- -_ . _ :' • _. - - j ^ -'_ . •~' ' ^ >, ^=^1 _ ''' 'x' _ , ^'-j ^>;-^
MW-28
Contaminant
f Paramete,
GWOS
3 Listed i
GWCL
TBA Contaminant
f Paramete,
GWOS
3 Listed i
GWCL
TBA I3t qir. 2008
Jan - March
3/^Z•2008
2nd qtr. 2008
April - June
G/3/200&
Ord qtr. 2008
July - Sept.
8/6/2008
4th qtr. 2006
Oct - Dec.
11/5/2008
1st qtr. 2009
Jan - March'
2/42009
2nd qir. 2009
April - Ji>ne
5/12/2008
3rd qtr. 2009
July - Sept.
8*17/2009
41h qtr. 2009
Ocl. - Dec.
10'l 2/2009
Contaminant
f Paramete,
GWOS
3 Listed i 1 Table -
Nulnenfs (mij'L)
Ammoma (as N) 25 c0.05 c0 05 cO.1 01 . 0.05 0.13 0 06 c0 05
NitrniB-1-Nitrite (as N) 10 0.1 0 16 0.16 0.1 0.2 02 0.2 0 1
r Heavv Melals (ua'D
1 *- —.
1 Arsenic 50 154 • 16 1 14 6 14.7 12 1 • 14 13.5 12.6
|Bervlliuni 4 c0.50 c0 50 c0.50 '0.50 cO50 c0.50 c0 50 c0 50
Cadmiurn 5 3.4 3.22 3.42 3 37 3.66 39 3.8 4.39
Chromium 100 c25 c25 c25 c25 '25 c25 •:25 c25
Cobalt 730 29 22 27 29 28 23 29 29
Copper 1.300 clO clO cio ClO cio clO ClO • cio
Ircn 11.000 46 46 42 57 .-30 42 36 c30
Lead 15 cl 0 cl.O cl.O cl 0 '1.0 cl.O cl.O cf.O
Manqanese 800 m-1.540-z.-J =t^60 • J1,530^-' .^7:1,540: r--r7,500^'^ ~ -r-1,470 -^~t,490 r Sf.320:-zjjj
Mercurv 2 c0.50 cO.50 c0 50 .0.50 cO50 c0.50 cO 50 c0.50
Moiybtiefium 40' clO clO cio cio c^lO clO c.lO cio
Nickel 100 23 26 29 21 c20 26 24 25
Selenium 50 c5.0 '5.0 c5.0 c5 0 10.8 5 6 c5 0 c5.0
Silver 100 cio cio cio cio cio cio cio cio
Thallium 2 0.64 0.82 0.79 0.79 1.08 0.83 0.61 1.93
Tin 17,000 '100 •clOO clOO clOO clOO '100 <100 clOO
Uranium 30 3.17 3.46 3.15 3.55 3.42 3.34 3 24 3.46
Vaneoium 60 c15 c15 c15 cl5 clf. c15 '15 c15
Zinc 5.000 34 38 44 37 79 . 46 -13 67
RflriinKJOics fpClLl
Gross Alpha 15 1 1 •1.2(0.5-./-) 1 -1 3 (0.4+/-1 1 -16(0.5+/-) | •0.8|t/-0.7) | '1 7 (.I-/-0.51 ! •05(-f/-0.4) | 32(-/-0.6) 1 "1.9 (-h/-0.9)
•JOO (uqJLi
Acetone 700 c20 c20 c20 c20 c20 c20 c20 c20
Benzene 5 cl.O cl 0 cl 0 cl.O cl.O cl.O cl.O cl.O
|2-Birtanone (MEK) 4.000 c20 c20 c20 .20 c20 c20 .20 c20
[Carbon Tetrach bride 5 cl.O cl 0 cl 0 cl 0 cl.O cl.O •ll 0 cl.O
Chloroform 70 cl.O <1 0 cl.O cl.O cl 0 cl.O cl.O '1.0
Chloromethane 30 cl.O cl.O cl 0 cl 0 cl 0 cl.O cl 0 cl.O
pichloiomethane 5 .1 0 cl.O cl 0 cl 0 cl.O cl 0 .:1 0 cl.O
Naohthaiene 100 cl 0 <1 0 cl 0 cf.O cl 0 c1 0 cl.O cl.O
Tetrahydnjfuran (THF) 46 c2.0 c2.0 c2.0 <20 c2 0 c2.0 c2 0 c2.0
Toluene 1.000 cl 0 cl.O cl.O cl.O cl 0 cl 0 cl.O cl.O
Xvlenesitotall 10.000 ••1.0 cl.O cl.O '1.0 cl 0 --.1 0 •;1.0 cl.O
1 Others
Field DH (S.U) 6 5-85 6 88 = 8.47 -'-^ ^ :• 0.24^-1= 6.79 = R3« JT-ss-6 51 • ^ 6.40 6.68
Fluoride (mg^'l) 4 0.6 0.6 0.6 06 0.6 0.6 06 07
Chloride fmo/if 99 103 99 99 91 61 100 104
Sulfate |mq/l) 2,310 2,360 2.340 2.340 2.340 2,410 2.360 2.380
TDS (miVII 3,840 3,580 3,590 3.550 3,730 3,620 3.680 3.710
General Inoraanics List ed in Part 1 F l.ic:
Carbona'e imcpn cl.O cl 0 cl 0 cl.O cl.O cl 0 cl.O cl.O
Bicaitonale (mcvl) 159 149 160 154 154 156 153 158
Sodium (msjl) 292 • 303 311 312 288 289 302 308
Potassium (mq/l) 11 4 11 1 11 5 12 11 102 11 7 11.4
Magnesium fmg/l) 160 167 179 176 157 162 169 168
Calcium (mq/l) 490 514 546 546 479 483 526 512
Total anions (mea'D 53.5 54 5 54 54 • 53.7 55 545 55
Tolal caiions imeq/L| 50.8 52 9 556 55.6 49 5 50 2 53 5 53
Conceniid"^ sladed eja:eec ire GWCL
' rtie griKS alpha coLrling variance enceeded 2iJ^o
MW-29
GWOS GWCL
Contaminant TBA 1st qtr. 2008 2nd qtr. 2008 3rd qtr. 2008 4th qir. 2008 istqtr 2009 2nd qtr. 2009 3rd qtr. 2009 4lh qtr. 2009
Jan - March Apnl - June July - Sept. Oct - Dec. Jan - Match April • June July • Sept Oct. - Dec.
3^1*2008 6/2/200B 8/5/2008 11/5/2008 2/3/Z009 5/13/2009 8*24/2009 10126/2009
\ Parameters Listed in Table 2
Nulrients (mq/L)
Ammonia (as N) 25 0.8 053 0.5 0.87 0.59 0.76 - 0.8 1.04
Nitrale t Nitrite (ae N) 10 cO.1 cO.05 c0.05 cO.1 cO.1 02 cO 1 cO.l
Heavy Melals lunl)
Arsenic 50 c5.0 c5 0 c5.0 c5.0 v-5.0 c5.0 c5 0 <5.0
Beryllium 4 c0 50 cO.50 c0.5O cO.50 c0.50 '0.50 <0 50 cO 50
Cadmium 5 c0.50 c0 50 c0.50 c0.50 c0.50 cO50 c0 50 cO 50
C firom ium 100 c25 c25 c25 <25 c25 c25 c25 c25
Coban 730 cio cio cio cio cio cio ClO cio
Copper 1,300 clO cio cio <10 clO cio <10 cio
Iron 11.000 1,380 1,400 1,720 1,720 1.460 1,380 1,650 1.480
Lead 15 cl.O cl 0 cl.O cl.O cl.O cl 0 <1.0 cl.O
Manqanese 800 ^-4,530 = -^r"? 5,260-.----4,3805'..;-•Bjy «90-* = i 5,140 = •JJE5,330^ ~=J,050^ - 5,070
Msrcurv 2 c0 50 cO 50 c0.50 c0 50 cO 50 c0.50 cO 50 c0.50
Molybdenum 40 clO ClO <10 ClO ClO cio ClO cio
Nickel 100 c20 c20 c20 c20 <20 c20 c20 c20
Sslenium 50 c5.0 c5 0 c5.0 c5.0 c5.0 c5.0 c5 0 c5 0
Sifver 100 c10 cio '-10 cio cio cio cio ctO
Ttiallium 2 cO 50 c0 50 c0 50 cO50 cO.50 c0.50 cO 50 <0.50
Tin 17,000 clOO ClOO <100 clOO clOO clOO clOO <100
Uranium 30 11 1 10.3 10 4 10.8 10.7 10.4 11 1 11.8
Vanadium 60 c15 c15 c15 c15 c15 <15 <15 c15
Zinc 5,000 21 22 22 26 40 12 ClO ClO
Radioloqcs (pCi/L)
Gross Alpha 15 1 •2 1 (0.5W-) 1 -1.1 10 4-r-/-) •1.6 (0 5t/-) •1 1 (W.0 7) •1.7 I-F/-0.4) •0.9 [tl-05) •1 2(+/-0 4) •2.3(0.5-/-)
VOC luq/L)
Acetone 700 c20 <20 <20 c20 c20 c20 c20 c20
Benzene 5 <1 0 <1 0 cl 0 cl 0 cl 0 cl.O cl.O cl.O .
2-BuIanone (MEK) 4,000 <20 c20 c20 c20 c20 c20 <20 c20
Carbcn Tetrachloride 5 cl 0 cl.O cl 0 cl.O cl.O cl.O cl.O <1 0
Chiorofonm 70 cl 0 ct 0 cl 0 cl.O <1.0 cl.O c1.0 cl 0
Chloromethane 30 cl.O cl 0 cl.O cl.O cl 0 cl.O cl.O cl 0
Dichloromelhane 5 cl.O cl 0 cl 0 cl.O •cl.O cl 0 cl.O <1 0
Naphthalene 100 cl 0 cl 0 cl.O cl.O cl 0 cl 0 cl.O Cl.O
Tetrahydrofuran (THF) 46 c20 <2 0 '2.0 <2 0 c2 0 c2 0 c20 c2 0
Toluene 1,000 cl 0 cl 0 cl.O cl.O cl.O cl 0 cl.O cl.O
Xylenes! total) 10,000 cl 0 cl.O cl.O cl.O cl.O cl.O cl.O • cl.O
Others
Field pH (S U.) 6 5 - 3.5 7.48 6 98 6 71 6.60 6.61 7 09 6.80 7.46
Fluoride (mq/l) 4 08 0.8 0.8 08 08 0.8 0.8 0.8
Chtoride (mo/l) 39 36 35 32 31 30 34 35
Suifaie (mq/l) 2.840 2.840 2.810 2,920 2.710 2.790 2.720 2,960
TDS (mo/l) 4.430 4,190 -1.3^0 4,360 4.180 4.260 4.230 4.260
General Inorqanics Listed in Pan 1 E.l icl
Carbonate (mg/l) cl.O cl.O cl.O cl.O cl.O . cl.O cl.O cl.O
Bicarbonate (mg/l) 345 321 330 328 331 339 349 352
Sodium (mg/l) • 466 486 494 508 377 439 501 455
Potassium imq/t| 172 16 8 17.5 18.1 13.7 152 17.5 17
Magnesium [mg/l) 206 218 236 231 228 201 220 216
Cak;ji«ii (mq/l) 461 470 524 518 508 437 496 488
Tolal anions (meq/L) 65.9 655 65 67.1 62.7 64.5 63.4 68.5
Total cations imea'D 81.1 63 67.7 67 5 60 9 57.9 65 1 62.5
NOIO
Conc«naaiKVB tliadad aicead itia GWCL
' Tne gross alptia counting varianc« euifledM 20%.
Not Sampled dunno 2nc[Ojartar (Jiirie) 20O7.~'nis well was'sampled m July 2X7 as pan of a hydragoolbgic~stiidy paHoirnedby ttw Umyweity o\ UBfi .JVis study requirttt'uiKtatu'rt»d water in ~
ihia «er| li)rat)9Bal2moninspiiorii>Barrpling- .'i-l^i™-! 'r^-^V.-.. „ ~.' s; -_ -• • .J^^ .jf=j_'.^~=- , . .; "J- -"^-t.
MW-30
Com am mant
GWQS GWCL
TBA Com am mant
GWQS GWCL
TBA Isl qtr. 2008
Jan - March
3^19/2008
2nd qtr. 2008
Apnl - June
6/3/2008
3rd qtr 2006
July - Sept
8/4/2008
41h qtr. 2008
Oct. - Dec
11/5/2008
1st qtr 2009
Jan - March
2J3/2009
2nd qtr 2009
Apnl - June
5/13/2009
3rd qtr. 2009
July-Sept.
^24/2009
41h qtr. 2009
Oct. - Dec.
1 CVI 4/2009
Parameters Listed i 1 Table 2
Nutrients (m*L)
Ammonia (as N) 25 <0.05 <0 05 cO.1 0.12 c0.05 0.14 0.17 c0 05
Nitrafe + Nitnte (as N) 10 7 18.7 ?5 * . .77.3 ^ ^15.3 -.^ ......1S.U---• 20.9 ••^.is Heavy Metals iug/L)
Arsenic 50 c5.0 cS.O 22 4 c5 0 c5 0 • <50 c5.0 , c5.0
Beryllium 4 cO 50 <0 50 --.~TJ.5:: -•• cO.50 cO.50 c0.50 cO.50 c0.50
Cadmium 5 c0 5O cO 50 . -24.7 -=i^ c0.50 <0.50 c0 50 c0.50 c0.50
Cfl rom ium 100 c25 <25 =1 299.-^ c25 c25 c25 c25 <25
Cobaft 730 clO cio 26 <10 <10 cio clO cio
Copper 1,300 . clO <10 73 cio cio ClO cio clO
Iron 11.000 141 135 646 129 c30 110 118 120
Lead 15 cl 0 cl.O u=;-' 25.5 J'S;.. cl.O <1 0 cl.O cl.O cl.O
Manganese 800 45 4S 165 45 47 44 50 43
Mercury 2 c0 5O c0.50 c0.50 cO.50 c0.50 <0 50 c0 50 cO.50
Molybdenum 40 c10 cio ClO clO cio cio clO cio
Nckel 100 c20 c20 . i t09 ^= <20 <20 <20 <20 c20
Selenium 50 30.5 305 47 2 30.2 32 32.3 31.6 32.4
Siver 100 <10 cio cio cio cio cio cio cio
Thallium 2 cO 50 cO.50 I 17 c0 50 c0 50 c0.50 c0 50 cO50
Tn 17.000 clOO clOO clOO clOO ClOO ClOO ClOO clOO
Uranium 30 6.79 6.86 11 6.29 6.67 6.52 6.97 6.90
Vanadium 60 . c15 c15 23 c15 c15 c15 c15 <15
Zinc 5.000 c10 clO 27 cio 24 ClO ClO cio
Radioloaics (pC^L)
Gross Alpha 15 1 1 •1.0(0.3t/-) 1 '0.8 (0.3-f/-) 1 -1.0(04./-) | •07{+l-0.7) \ -07(-tV-0.3) | •04(-t/-04) | *0.8{+/-04) | '1.3 (-f/-0.8l
VOC (uq/Ll
Acetone 700 c20 c20 c20 c20 c20 c20 cZO c20 •
Benzene 5 cl 0 cl.O cl.O cl 0 cl.O cl.O cl.O cl.O
2-Buianone (MEK) 4.000 c20 c20 c20 c20 c20 c20 c20 c20
Carbon Telrachloride 5 cl 0 cl.O cl.O cl.O cl.O cl.O cl 0 cl.O .
Chloroform 70 cl 0 cl.O <1.0 cl.O cl.O cl.O cl.O cl.O
ChiOfomcUwie 30 cl.O cl.O cl.O <1 0 cl 0 cl.O cl.O cl.O
Dichloromethane 5 cl.O cl.O cl.O cl.O cl.O cl.O ct 0 cl.O
Naphthalene 100 cl.O . cl.O cl 0 cl.O cl.O cl.O <1 0 cl 0
Tetrahydnafuran (THR 46 <2.0 c2.0 c2 0 c2.0 <2.0 c2.0 c2.0 c2.0
Toluene 1,000 cl.O cl.O cl 0 cl.O cl 0 cl 0 cl.O cl.O
Xyler)es(lofaf) 10,000 cl.O cl.O cl 0 cl.O cl 0 cl 0 • cl.O cl.O
Oihers
FiekJpH(SU.) 6.5 - 8 5 7.90 751 7 19 7.14 7.21 7.27 7.30 7 60
Fluoride (mq/l) 4 0.4 04 0.3 04 0.4 0.4 0.4 04
Chlorids (mo'i) 118 126 121 162 113 122 118 129
Sulfate (m4l) 853 842 831 799 795 806 781 769
TDS (mo/l) 1.610 1.500 1.640 1,640 1,640 1,560 1^ 1,620
neral Inortianics Listed m Part 1 E.1.lcl(21
Cartionate (mq/l) cl.O cl 0 cl.O cl.O cl.O cl 0 cl.O cl.O
Bicarbonate (mq/l) 197 180 190 179 185 186 192 190
Sodium (mq/l) 108 109 115 111 99.7 104 111 109
Potassium (m^l) 78 7.29 7.64 7.43. 69 6.5 74 744
Maqnesium (mo/l) 68 9 71.3 75.8 73.3 67.3 65.1 69.1 68.5
Calcium (mq/l) 270 274 297 2B7 263 245 278 289
Total anions (meo/L) 25.4 25 4 25 253 23.9 24 4 24 3 23.6
Tolal cations (meq/L) 24 1 24.7 26.3 25.4 23 4 222 24.8 24
CoricEntrat'ixis snacM encMd ilia QWCL
' Die gross alpha courtjng va;ianr:« qxceedod 20%
Not Sarfiplad durino ZndQiWler (Juno) 2C0T".Tnis 'i
'well tot at icasi 2 ironffs prior to sampling - -
i'l was Mmplad ln"Jut)'2p07 ai^pinof a hydrogeolobc study perform ''Vjtie Unhrersiiy of Utah'This study requital iind«turb«d wanr iii^is
MW-31
GWOS GWCL
TBA
GWOS GWCL
TBA 1st qtr. 2008
Jan - March
3I^9/200B
2nd qtr. 2008
April - June
6/3/20OB
3rd qtr 2008
Jufy - Sept.
8/4/2006
4th qtr. 2006
Oci. - Dec
11/11/2008
Istqtr. 2009
Jan - March
Z-3/2009
2nd qtr. 2009
April - June
5/13/2009
3rd qtr. 2009
Jufy - Sept.
8/24/2009
4th qtr. 2009
Ocl. - Dec.
1Q/14/2009
Paramete rs Listed in Table 1
Nutrients (mq/L)
Ammonia (as N| 25 cO.OS c0 05 <0 1 cO.05 cO.05 0.09 c0.05 cO.OS
NitrateNitrite (as N) 10 i:£.= 25 •== • '"7"28.7,J:-y-' & 28.9=~:rr w-^-j, 23.4 ^22.4 JL i15.4 :• -~ 22.6-
Heavy Metals (UQ/L)
/vsen'c 50 c5 0 c5.0 <s.o c5 0 c5 0 c5 0 c5.0 c5 0
Beryllium 4 cO 50 c0 50 c0 50 c0.50 cO.50 cO.50 cO 50 c0 50
Cadmium 5 c0.50 cO50 c0 50 c0 50 <0 50 cO50 c0.50 cO.50
Chromium 100 <25 c25 c25 c25 c25 c25 <25 c25
Cobalt 730 cio cio clO cio clO cio cio c10
Copper 1,300 <10 ClO ClO ClO cio ClO cio cio
Iron 11.000 c30 c30 c30 c30 <30 c30 <30 c30
Lead 15 cl.O cl 0 cl.O cl.O cl.O cl 0 cl.O cl 0
Manqanese 800 cio cio cio cio ClO cio .10 clO
Mercury 2 c0.50 c0.50 cO50 c0.50 cO 50 c0.50 c0 50 <0 50
Mofybdenim 40 cio <10 <10 cio cio cio cio cio
Nickel 100 c20 c20 c20 <20 c20 c20 c20 c20
Selenium 50 54,4-: 5; 55.5 • ..T -^—58.4 ^: - 5J.ff-55.8 SA2ii= -^'56.4
Sifter 100 cio cio clO clO cio cio cio . clO
Thallium 2 c0.50 cO.50 c0.50 cO 50 c0 50 c0.50 <0 50 cO.50
Tin 17,000 clOO <100 clOO ClOO clOO clOO . c100 clOO
Uranium 30 7.02 6 95 6.77 635 7.08 6.76 6.97 6.97
Vanadium 60 c15 CIS cl5 c15 c15 c15 cl5 cl5
Zinc 5,000 cio clO 13 ClO cio dO clO cio
Radioloaics (oCi/U
Gross Alpha 15 1 1 -1 7(04-t/-) t -1 3(0.4)/-) 1 -1.510.4^-) 1 •06(-f/-03| | "1.1 (-1-/-0 4) •0 8(-f/-0 4) 1 •O.S (-I-/-0.4) 1 -1.1 (-/-0.8)
VOC (uofl-l
Acetone 700 c20 c20 c20 c20 c20 c20 c20 c20
Benzene 5 cl.O cl.O cl.O <1 0 cl 0 cl.O cl 0 cl.O
2-Butanone (MEK) 4.000 c2D c20 c20 c20 c20 c20 c20 c20
Carbon Tetrachloride 5 cl.O cl.O cl.O cl.O cl.O cl.O cl 0 cl.O
Chloroform 70 cl.O cl.O cl 0 cl 0 cl 0 cl.O cl 0 cl.O
Chloromethane X cl 0 cl.O <1 0 cl.O cl.O cl.O cl.O <1 0
Dichloromethane 5 cl.O cl.O cl.O cl.O cl.O cl.O cl.O cl 0
Naphthalene 100 c1.0 cl.O cl 0 cl.O cl 0 cl.O cl.O cl 0
Tetrahydrofuran (THF| 46 c2.0 c2.0 c2 0 • c2.0 c20 <2.0 c2.0 c20
Toluene 1,000 cl.O cl 0 cl.O cl.O cl.O cl.O cl.O cl.O
Xvlenesdoial) 10.000 c1.0 cl 0 cl 0 • cl.O cl.O cl.O cl 0 . cl.O
Others
Field pH (S U.| 6.5-6.5 7 98 7.65 7 48 7.75 7.59 7 62 7.60 7.80
Fluoride (mg/l) 4 0.9 09 08 0.3 09 0.9 09 0.9
Chbnde (mo/l) 124 126 124 119 115 124 122 138
Sulfate (mcvl) 521 514 499 541 488 493 460 497
TDS (ma/I) 1.220 1.180 1,240 1,220 1,210 1.230 1.230
General Inoraanics Listed in Pan I E i.(cw^)liil
Carbonate (mq/l) cl.O cl.O cl.O <1 0 cl.O cl.O cl.O cl 0
Bicarbonate (mg/l) 212 197 210 205 205 209 215 • 214
Sodium (mq/l) 91 93 7 94.4 97 82 8 84 92.7 93.6
Potassium (mq/i) 6.2 5.96 6 07 62 5.4 5 1 6 6.09
Maqnesium (mg/|| 78 2 80 B 86.3 64.9 801 727 79 4 78.5
Caiciim (mq/\) 161 163 180 180 169 146 169 170
Total anions (meq/L) 197 19.7 19.3 20.1 18.5 16.8 17.7 19.4
Total cations Imeo'L) 18.6 19 20 5 20.3 188 17.1 19.2 192
Co'icwirai.o"s snadsd uicBBd if e GWCL
' Tne gross alptiB uojfii.ng variant* diCMdBd 20°!.
Noi SamplKJ during 2ndQu(irie( (JurvB) 2007.;Ths *ell was snmplBd m JiJy 2007 as part bl a tiYttogHotOOiC
well (oral leaslZitmn*Bprior 10 sanfiplifiO.__7^7ZL .... _ --~ ^ " . • '; '.^=LZ . ';
lludy pertormed tiy ttw^nivereity ol Utati . Tin itxif required 'undisturtied water In ns
MW-32
QWQS &WCL
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ATTACPfMENT 1
December 23, 2009
Re: DUSA ^ Quarter 2009, GroundwaterMoni,orin» Repon-
Nofce cf Violation .nd CompLance Order ^
Docket No. UGW09-04
DENISO
MINES
Decdember 23,2009
VIA PDF AND FEDERAL EXPRESS
Denison Mine* (USA) Corp.
105017th Straet, Suite 950
Denver, CO 802S5
USA
Tel: 303 82ft-77ge
Fuc 303 38M126
www.dtnlaonmlnet.com
Mr. Dane L. Finerfrock
Co-Executive Secretary
Utah Water Quality Board
State of Utah Department of Environmental Quality
168 North 1950 West
P.O. Box 144850
Salt Lake City. UT 84114-4fl50
Dear }Ax. Finerfrock:
Re: DUSA 1^ Quarter 2009, Groundwater Monitoring Report:
Notice of Violation and Compliance Order, Docket No. UGW09-04
This letter is in response to the foregoing Notice of Violation (the "Notice") dated November 17, 2009,
which Denison Mines (USA) Corp. ("DUSA") received on November 23, 2009. The Notice lists four
violations (the "Violations") of tne White Mesa \mz (the "Mill's") Ground Water Quality Discharge Permit
No. UGW370004 (the "Permif), based on a review of the Groundwater Monitoring Report for the I*'
Quarter of 2009.
Pursuant to Utah Code Annotated 19-5-111 (1953 as amended), this letter describes:
a) the root cause of the noncompliance;
b) steps that have been or will be taken to correct the violation;
c) date when compliance was or will be regained; and
d) steps taken or to be taken to prevent re-occurrence of the noncompliance.
DUSA responds as follows:
1. Violation of Part I.E.1(a) of the Permit and Sections 6.2.2.(a) and 6.2.7(d)(v) of the DUSA QAP
for falling to measure for turbidity in wells MW-14 and MW-32 during the January 2009
monitoring event and wells MW-20 and MW-22 during ths February, 2009 monitoring event
a) Root Cause of the Noncompliance
Wells MW-14 and MW-32 were sampled for accelerated monthly purposes on January 13, 2009.
Due to the fact that the chain of custody for those samples was broken by the overnight carrier
(i.e. the sample cooler was opened while the samples were In transit) those wells required re-
sampling. The re-sampling occurred on January 20, 2009. At the time of re-sampling, the
technicians experienced prolDlems with the turbidity meter and were unable to obtain a reading.
That information was recorded on the accompanying Field Data Worksheets. The problem with
the turbidity meter remained intermittent and recurred during the sampling of MW-20 and MW-22
on February 2,2009. Again the problem with the meter was noted on the Field Data Woi1<sheets
for those sampling locations. Due to these problems, another hydrolab field instrument was
ordered and the original instrument was repaired in February allowing for a backup instrument
. should equipment failure occur in the future. The technicians believed that noting the equipment
failure on the Field Data Worksheets was sufficient and did not realize that a resample would be
necessary to maintain compliance with the requirements of the QAP. The root cause of the
violation was the fact that the sampling technicians failed to re-sample as a result of their inability
to obtain turbidity readings and their belief that noting the equipment failure was sufficient.
b) Steps That Have Been Taken to Correct the Violation
i. Sampling technicians have been advised that alt required field data must be obtained
when samples are collected and that if an equipment failure should occur with the field
instnjmentation during sample collection, re-sampling will be necessary.
ii. A second hydrolab field instrument has been pui-chased and the original instrument has
been repaired, allowing for a backup instrument should this problem re-occur in the
future.
iii. All technicians are required to read the QAP annually and as necessary in order to
follow the QAP requirements.
c) Date When Compliance Was or Will be Regained
The hydrolab unit was repaired and the additional field instrument obtained in March, 2009.
d) Steps Taken to Prevent Re-occurrence of the Noncompliance
The steps outlined in l.b) above have t>een taken.
2. Violation of Part I.E.1 (a) of the Permit and Section 6.2.7(d)(v) of the DUSA QAP for falling to
achieve stable turbidity conditions before collecting groundwater samples in 17 wells during
the February and March, 2009 monitoring events
a) Boot Cause of the Noncompliance
The sampling technicians failed to fully understand the QAP requirement at Sectton 6.2.7.(d)(v)
of the QAP. The technicians believed that if the well yields 2 casing volumes (Section
6.2.7.(d)(vi) of the QAP) or if stable parameters are obtained in accordance with Section
6.2.7.(d)(v), then a sample can be collected. The technicians did not understand that regardless
of the fact that 2 casing volumes have been evacuated. Section 6.2.7.(d)(v) requires that field
parameters must also fall within a 10% range prior to the collection of samples. As a result, the
technicians in some instances evacuated 2 casing volumes but did not achieve stable turbidity
conditions for the referenced samples in the February and March, 2009 monitoring events. In
addition, and because some of these wells were both insufficiently purged and also did not meet
stable parameters, sampling technicians were not diligent in adhering to the overall purging
requirements.
b) Steps That Have Been Taken to Con-ect the Violation
The following steps have been taken to correct the vwlation:
i. Sample technrcians have been re-apprised of the requirements at Sections 6.2.7.(d)(v)
and 6,2.7.(d)(vi) of the QAP that 2 casing volumes must be evacuated and that stable
field parameters must be observed prior to sampling.
ii. The QA manager has initiated an early review process for Field Data Worksheets relative
to well evacuation volumes and field parameters. This review step will occur as soon as
possible after samplina has occurred, and in time for re-sampling should purging steps
fail to comply with QAP requirements.
iii. As an element of quarterly reporting, the QA manager has initiated a documented review
of quarterly samples for evacuation volume and field parameter stability which has been
included in the 3 Quarter, 2009 Groundwater Monitoring Report.
DENISO
MINES Mi
iv. All technicians are required to read the QAP annually and as necessary in order to follow
the QAP requirements.
c) Dale When Compliance Was or Will be Regained
Samples were collected in accordance with Sections 6.2-7,(d)(v) and 6.2.7.(d)(vi) of the QAP
during the 4*^ Quarter, 2009 event.
d) Steps Taken to Prevent Re-occurrence of the Noncompliance
The steps described under item 2.b) above have been taken.
3. Violation of Part IE.1(a) of the Permit and Section 6.2.7.(d)(v) of the DUSA QAP for falling to
evacuate two casing volumes before collecting groundwater samples In 13 wells during the
January, February, and March 2009 monitoring events.
a) Root Cause of the Noncompliance
The sampling technicians failed to fully understand the QAP requirement at Section 6.2.7.(d)(v)
of the QAP. The technicians believed that if stable parameters are obtained (Section 6.2.7.(d)(v)
of the QAP) or il the well yields 2 casing volumes (Section 6.2.7-(d)(vi) of the QAP), then a
sample can be collected- The technicians did not understand that regardless ot the fact, that
stable fieW parameters are indkiated. Section 6.2.7.(d)(vi) requires that at least two casing
volumes must also be evacuated. In addition, because some of these.wells were both
insufficiently purged and also did not meet stable parameters, sampling technicians were not
diligent in adhering to the overall purging requirements.
b) Steps That Have Been Taken to Correct the Violation
The following steps have been taken to correct the violation;
i. Sample technicians have been re-apprised of the requirements at Sections 6.2.7.(d)(v)
and 6.2.7.(d)(vi) of the QAP that 2 casing volumes must be evacuated and that stable
field parameters must be obsen/ed prior to sampling.
ii. The QA manager has initiated an early review process for Field Data Worksheets relative
to well evacuation volumes and field parameters. This review step will occur as soon as
possible after sampling has occurred, and in time for re-sampling should purging steps
fail to comply with QAP requirements.
iii. As an element of quarterly reporting, the QA manager has initiated a documented review
of quarterly samples for evacuation volume and field parameter stability which has been
included in the 3 Quarter, 2009 Chloroform Monitoring Report.
iv. All technicians are required to read the QAP annually and as necessary in order to follow
the QAP requirements.
c) Date When Compliance Was or Will be Regained
Samples were collected in accorelance with Sections 6.2.7.(d)(v) and 6.2.7.(d)(vi) of the QAP
during the 4"' Quarter. 2009 event.
d) Steps Taken to Prevent Re-occurrence of the Noncompliance
The steps described under 3.b) above have been taken.
DENiSO
MINES
Mi
4. Violation of Part iE.1(a) of the Permit and Section 9.1.3 of the DUSA QAP for failing to provide
any comparison of March, 2009 Trip Blank results to original sample results for multiple
volatile organic compounds.
a) Root Cause of the Noncompliance
Due to an instrument malfunction at the Mill's contract laboratory, the trip blank was not analyzed
and thus no result could be reported. The laboratory did.not inforrii Denison that a trip blank
instrument failure had occurred, other than the information conveyed within the final Analytical
Report Case Narrative. Further, the QA Manager was not diligent in his review ol the analytical
results. Since the samples had all been collected and the laboratory did not inform Denison that
there had been a problem until the analytical report was received subsequent to the^ quarter's
end, there was no opportunity to re-sample with a new trip blank included for the 1 Quarter,
2009.
b) Steps That Have Been Taken to Correct the Violation
The following steps have been taken to correct the violation-.
i. Sampling technicians have initiated early quarterly sampling as a result of prior problems
with temperature and sample custody during shipping. This practice enables early
detection of sample problems.
ii. The laboratory has been informed that trip blank results must be made available to
DUSA well before the quarter's end in order to accommodate a re-sampling should the
Trip Blank fail to be analyzed.
iii. The QA Manager has been reminded of the need to carefully review the analytical
results to ensure that the results for all required QA samples are included.
c) Date When Compliance Was or Will be Regained
Laboratory notification pertaining to Section 4,b)ii above has occurred contemporaneous with the
transmission of this response.
d) Steps Taken to Prevent Re-occurrence of the Noncompliance
The steps described under 4.b) above have been taken.
If you have any questions or require any further information, please contact the undersigned.
Yours very truly,
DENIS/U MINES (USA) CORP.
wC. Frydenlund
Vice President, Regulatory Affairs and Counsel
cc: Ron F. Hochstein
Harold R. Roberts
Steven D. Landau
David E. Turk
DENISO
MINES