DRC-2008-002321 - 0901a0688081d041

State of Utah
JON M. HUNTSMAN, JR.
Governor
GARY HERBERT
Lieutenant Governor
Certified Mail
Department of
Environmental Quality
Richard W. Sprott
Executive Direaor
DIVISION OF RADIATION CONTROL
Dane L. Finerfrock
Director
October 9, 2008 rotatposrase&Fe* l$ I
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Mr. David C. Frydenlund
Vice hesident and General Counsel
Denison Mines (USA) CorP. (DUSA)
1050 Seventeenth St. Suite 950
Denver, Colorado, 80265
2od Quarter, 2008 DUSA Groundwater Monitoring Report: Ground Water Quality
Discharge Permit UGW370004: DRC Findings, Notice of Enforcement Discretion, and
Request For Information.
Dear Mr. Frydenlund:
On Septemb er 2,2008,the Utah Division of Radiation Control (DRC) received the 2"d Quarter (April -
June) 2008 Groundwater Monitoring Report (2'd Quarter 2008 Report). After review of the 2od Quarter
200d Report for the Denison Mines (USA) Corp. (DUSA) White Mesa Uranium Mill near Blanding, Utah,
the following issues were identified:
Additional Monitoring Not Reported as Required
In Tab B of the 2nd Quarter 2008 Report, it shows that DUSA collected a groundwater sample from
monitoring well MW-4 on May 27 ,2OOB at 15:05. Included in Tab G of the 2'd Quarter 2008 Report,
Chain of Custody forms sent to Energy Labs and American West Analytical Labs requested analysis of
samples from will MW4. No results of these analyses were included in the 2no Quarter 2008Report'.-."
Since MW-4 is a chloroform investigation well, the 2'd Quarter 2008 Chloroform Monitoring Report (2'o
Quarter Chloroform Report) was also reviewed to see if the resu_lts were included in that report' The MW-
dsamples collected on iuluy 27 ,2008 were not included in the 2'd Quarter Chloroform Report.
Although MW-4 was not required to be sampled under the Permit, additional monitoring is required to be
submitted under Part II.F of the Permit, as follows:
ADDTT17NAL MONTO1ryG By THE PERMITTEE. lf the permittee monitors any pollutant more frequently than
required. by this permit, using approved test procedures as specified in this permit, the results of this
monitoring shali be included in the calculation and reporting of the data submitted. Such increased
frequency skall also be indicated.
168 North 1950 West'Salt I-ake City' UT
Mailing Address: P.O. Box 144850 ' Salt I-ake City, UT 84114-4850
Telephone (801 ) 536-4250' Fax (80 l -533-4097' T.D.D. (801 ) 536-441 4
\!wre.deq.utah.gov
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Mr. Frydenlund
October 9, 2008
Page 2
Notice of Enforcement Discretion
Although it appears that DUSA has inappropriately withheld the results of the groundwatff samples in well
I\rIW-4 collected on May 27,2008, the Executive Secretary has determined to use enforcement discretion in
this matter, based on:
1. DUSA will provide documentation that it canceled the analysis for the MW4 groundwater sample
collected on May 27,2008, ot
2. DUSA will remit the MW-4 results for the groundwater sample collected on May 27 ,2008 within
l0 calendar days ofreceipt ofthis letter.
Samples Received by Laboratory at Temperature Greater than Approved Temperature
(4"C)
Improper sample preservation was provided during the April, May, and June 2008 groundwater monitoring
evdnts, in that, groundwater samples were received by the analytical laboratory at temperatures greater than
the 4"C for VOCs. As stated in Section 9.3(d) of the QAP, non-conformance is defined when a satnple
temperature is exceeded for a constituent. These temperature exceedances are in violation of Sections
9.3(d) and 10.1(a) of the QAP, and Parts LE.1(a) and tr.A of the Permit. This is a continuing violation,
previously cited in the January 11, February 28, April 1, and August 4, 2008 DRC NOVs.
On July 3, 2008 DUSA notified the DRC (by phone) that two sets of samples were received and accepted
by its analytical laboratory at temperatures greater than the maximum allowed temperature of 4'C for
.VOCs. These two sets of samples were received at 5'C and 6oC for the April and May, 2008 accelerated
monitoring events, respectively. In a July 7 , 2008 Notice Pursuant to R3 17-6-6. 13, DUSA argued that
Affirmative Defense set out in Part LG.3(c) of the Permit should be applicable to these temperature
exceedances for the following reasons:
1. DUSA submittpd verbal notification of the temperature exceedances on July 3, 2008 and
written notification on July 7,2008 according to UAC-R317-6-6.13
2. The failure was not intentional or caused by Permitee negligence, either in action or in failure
to act,
The Permittee has taken adequate measures to meet Permit conditions in a timely matter or has
submitted to the Executive Secretary, for the Executive Secretary's approval, and adequate
plan and schedule for meeting Permit conditions, and
Provisions of UAC l9-5-l}7 have not been violated.
The DRC advised in an August 1, 2008 letter that DUSA had met three of the four items needed to meet
Affirmative Defense. Although, DUSA described in great detail the steps they have or will take to fix the
sample temperatue problems, DUSA failed to provide the DRC with a schedule or date when it would be
back in compliance. Without a schedule by which compliance will be regained, DUSA failed to meet the
terms of Affirmative Defense. Although, DUSA failed to meet all the criteria for Affirmative Defense in
the July 7, 2008 submittal, the DRC concluded that DUSA still could submit a date whereby compliance
for future samples will be regained.
In a September 4, 2008 submittal, DUSA determined that the root cause of past temperature problems were
not solely due to the failure to use "5-day" coolers, as originally proposed by DUSA, but was due to a
number of factors:
J.
4.
Mr. Frydenlund
October 9,2008
Page 3
o Failure to use regular ice, rather than "blue ice"
o Failure to ensure that there is a proper ratio of ice to sample volume
o Failure to collect samples on a schedule that minimizes sample transit time from the Mill to the
analytical laboratory
r Failure to use "5-day coolers" in all circumstances
o Failure to schedule sampling events and identify sample temperature problems early enough in the
sampling period to allow re-sampling during the period, if necessary
As a result of this analysis, DUSA claims it has changed its sampling practices, effective August 1, 2008,
as follows:
. "5-day" coolers will be used in all circumstances to transport groundwater samples
o DUSA will use regular ice as a coolant
o Ensure there is a proper ratio of ice to sample volume in each cooler
o Collect samples early in the week, so that the samples will be received by the analytical laboratory
on a business day and will not sit in transit over the weekend
o Collect samples as early in each sampling period as is reasonably practicable, in order to allow for
re-sampling during the period if necessary.
Contact the analytical laboratory upon scheduled receipt of the samples to ensure that they have
been received by the lab within the requisite temperature range
If samples are not received by the analytical laboratory within the required temperature range, the
samples will be re-collected during the same period and the new samples will be submitted to the
analytical laboratory for analysis
Notice of Enforcement Discretion
The Executive Secretary has decided to use enforcement discretion in this matter, in that the April, May,
and June 2008 samples received by the analytical laboratory were above the requisite temperature but were
collected prior to the DUSA commitment that all future groundwater samples, starting on August 1, 2008
will be received by the analytical laboratory at or below sample temperature requirements.
As a result, the DRC will not pursue enforcement for the April - June temperature problems at this time,
but will give DUSA the benefit of doubt that it has "solved" the temperature problem. Please ensure that
compliance is achieved and maintained so as to avoid escalated enforcement action in the future.
Thank you for your cooperation in this matter. If you have any questions or comments regarding this
letter, please contact Phil Goble at (801) 5364044.
Sincerely,
UTAH WATER QUALITY BOARD
Dane L. Finerftdck
DLF/PRG:prg
State of Utah
JON M. HUNTSMAN, JR.
Govemor
GARY HERBERT
Lieutenant Governor
IDepartment ot
Environmental Quality
Richard W. Sprott
Executive Director
DIVISION OF RADIATION CONTROL
Dane L. Finerfrock
Director
MEMORANDUM
DATE:
SUBJECT:August 29,2008 DUSA 2'd Quarter, 2008 Routine Groundwater Monitoring Report
Groundwater Discharge Permit (Permit) UG370004
Denison Mines (USA) Corp. (DUSA)
White Mesa Mill, Blanding, Utah
This is a summary of the 2nd Quarter (April - June) 2008 sampling event and all accelerated monitoring
events during the 2nd Quarter as documented in the August 29,2008 DUSA Report, cited above. After
review of this report, DRC staff findings are as follows: 1) The DUSA 2'd Quarter 2008 Groundwater
Monitoring Report (2nd Quarter 2008 Report) was received by the DRC by its respective due date
(September 1, 2008). 2) DUSA samples received by the analytical laboratory for the April, May, and June,
2008 monitoring events failed to meet sample preservation requirements, in that they arrived above the
approved temperature for VOCs. 3) DUSA failed to submit results for additional monitoring it conducted,
as required by the Permit. 4) Certain QA/QC sample data problems are apparent. 5) Summary of the
apparent violations is also provided below.
1.0 Accelerated Monitoring and POC Wells Exceeding GWCL
When a monitoring well has a pollutant that exceeds a GWCL set forth in Table 2 of the Permit it is in
Probable Out of Compliance (POOC) status. DUSA is then required to immediately initiate accelerated
sampling of that pollutant (see Permit, Part I.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 statistically
significantly higher as determined by some EPA guidance (see Permit, Part I.G.2). However, in a NOV
dated August24,2006, the DRC decided a parameter had to exceed the Ground Water Quality Standard
(GWQS) set forth in Table 2 of the Permit for two or more consecutive times to be in OOC status. This
process will continue until the Background Groundwater Quality Reports submitted on December 29,2006
and May 31,2007) has been approved by the DRC.
In the tables listed below are monitoring wells with parameters currently in POOC (normal font) or OOC
(in bold and italics) status.
168 North 1950 West. Salt l,ake City, UT
Mailing Address: P.O. Box 1,t4850 . Salt Lake City. UT 84114-4850
Telephone (801 ) 536-4250 . Fax (80 l -533-4097 . T.D.D. (801 ) 536-44 I 4
www.deq.utah. gov
Printed on 1007o recycled paper
I
LorenMorton 4#
phir Gobre re6
October 6, 2008
Page2
Wells Monitored Accelerated to Monthly Monitori
Well Class *Position Parameter Date of First
Exceedance of
GWOS/GWCL
Date Accelerated
Monitoring First
Reouired
MW-14 Class III water D4A manganese
uranium
March 2005
March 2005
April2005
Anril2005
Ivtw-26 Class III water CF-P, C-2 chloroform
dichloromethane
manganese
uranium
March 2005
June 2005
March 2005
March 2005
April2005
July 2005
April2005
April2005
MW-32 Class III water c-2 cadmium+
gross alpha+
iron
manganese
nickel
March 2005
March 2007
March 2005
March 2005
March 2005
April2005
April2007
April2005
April2005
April2005
*D=Down-gradient; U=Up-gradient; C=Cross-gradient; CF-P=chloroformpumpingwell;1,2,3,4A=
Cell #
+ = Well/parameters not in excess of their respective GWCL in 2"d Quarter, 2008
Wells Monitored Semi-annually Accelerated to Quarterly Monitoring
Well Class *Position Parameter Date of First
Exceedance of
GWQS/GWCL
Date Accelerated
Monitoring First
Required
MW-1 Class II water u-1 manganese+
THF+
4" Quarter 2005
2'd Quarter 2005
1" Quarter 2006
3'd Quarter 2005
MW-3 Class III water D-4A manganese
selenium
thallium+
TTIF+
uranium
4* Quarter 2005
2'd Quarter 2006
3'd Quarter 2005
3'd Quarter 2006
3'd Ouarter 2005
1" Quarter 2006
3'd Quarter 2006
4fr Quarter 2005
4fr Quarter 2006
4ft Ouarter 2005
MW-5 Class II water D-3 fluoride+
manganese
THF+
2"'Quarter 2005
2'd Quarter 2@5
4ft Ouarter 2005
3'" Quarter 2005
3'd Quarter 2005
l't Ouarter 2006
MW-12 Class III water D-3 THF+
uranium
2"o Quarter 2005
2nd Ouarter 2005
3" Quarter 2005
3'd Ouarter 2005
MW-15 Class III water D-4A selenium
uranium
2'" Quarter 2005
2'd Ouarter 2005
3'" Quarter 2005
3'd Ouarter 2005
MW-17 Class III water C-4A uramum 2"" Ouarter 2005 3'" Ouarter 2005
MW-18 Class II water u-l manganese+
thallium
uranium
4"'Quarter 2007
2'd Quarter 2005
2nd ouarter 2oo5
1" Quarter 2008
3'd Quarter 2005
3'd Ouarter 2005
MW-19 Class II water u-l fluoride
selenium+
thallium+
uranium+
4"'Quarter 2005
2'd Quarter 2005
4e Quarter 2005
2nd Ouarter 2005
l" Quarter 2006
3'd Quarter 2005
l't Quarter 2006
3'd Ouarter 2005
* D = Down-gradient; U = Up-gradient; C = Cross-gradient; 1,2,3,4A = Cell #
+ = Well/parameters not in excess of their respective GWCL in 2"d Quarter, 2008
Page 3
Some of the parameters listed were not found to be in excess of their respective GWCL during the 2n
Quarter,2008 monitoring events. The following wells have parameters currently in POOC or OOC status
that did not exceed theiriespective GWCL (last time parameter above GWCL in parenthesis) during the 2"d
Quarter, 2008 sampling events:
o MW-l: Manganese (1" Qtr 2007) andTHF (4m Qtr 2007)
o MW-3: TIIF (3'd Qtr 2006) and Thallium (3'd Qtr 2oo7)
o MW-5: TI{F (4d'Qtr 2005) and Fluoride (1" Qtr 2008)
o MW-12: TIIF (l't Qtr 2007)
o MW-l8: Manganese (4n'Qtr 2007)o MW-19: Selenium (1't Qtr 2006),Thallium (1$ Qtr 2008), and Uranium (4h Qtr 2007)
o MW-32: Cadmium (July 2007) and Gross Alpha (February 2008)
2.0 Samples Received by Laboratory at Temperature Greater than Approved Temperature
Improper sample preservation was provided during the April, May, and June 2008 groundwater monitoring
events, in that, groundwater samples were received by the analytical laboratory at temperatures greater than
the 4'C for VOCs. For details see Table 1, below. As stated in Section 9.3(d) of the QAP, non-
conformance is defined when a sample temperature is exceeded for a constituent. These temperature
exceedances are in violation of Sections 9.3(d) and 10.1(a) of the QAP, and Parts I.E.1(a) and II.A of the
Permit. This is a continuing violation, previously cited in the January 11, February 28, April l, and August
4,2008 DRC NOVS
Laboratoable l. Groundwater Sam ture Arrival At
Sampling Event
(Date Collected)
Date and Temp ('C) of Samples
Received bv Laboratory
Samples Where Temperature
Reouirements were Exceeded
April29, 2008 (5t2t2008) 5 MW-26, MW-60
May 13-14,2008 6,n6t200$ 6 MW-26, MW-60
June 16-18,2008
(2nd Quarter)
(6t20t2w8) 6.5 MW-5, MW-11, MW-12, MW-14,
MW- 1 5, MW-20, MW -22, IvrW-75
On July 3, 2008 DUSA notified the DRC (by phone) that two sets of samples were received and accepted
by its analytical laboratory at temperatures greater than the maximum allowed temperature of 4oC for
VOCs. These two sets of samples were received at 5"C and 6oC for the April and May, 2008 accelerated
monitoring events, respectively. In a July 7 ,2008 Notice Pursuant to R317-6-6.13, DUSA argued that
Affirmative Defense set out in Part I.G.3(c) of the Permit should be applicable to these temperature
exceedances for the following reasons:
L DUSA submitted verbal notification of the temperature exceedances on July 3, 2008 and
written notification on July 7 , 2008 according to UAC-R3 17 -6-6.13
The failure was not intentional or caused by Permitee negligence, either in action or in failure
to act,
The Permittee has taken adequate measures to meet Permit conditions in a timely matter or has
submitted to the Executive Secretary, for the Executive Secretary's approval, and adequate
plan and schedule for meeting Permit conditions, and
Provisions of UAC 19-5-107 have not been violated.
The DRC advised in an August l, 2008 letter that DUSA had met three of the four items needed to meet
Affirmative Defense. Although, DUSA described in great detail the steps they have or will take to fix the
sample temperature problems, DUSA failed to provide the DRC with a schedule or date when it would be
2.
4.
Page 4
back in compliance. Without a schedule by which compliance will be regained, DUSA fails to meet the
terms of Affirmative Defense. Although, DUSA failed to meet all the criteria for Affirmative Defense in
the July 7,2008 submittal, the DRC concluded that DUSA still could submit a date whereby compliance
for future samples will be regained.
In a Septemb er 4,2008 submittal, DUSA determined that the root cause of past temperature problems were
not solely due to the failure to use "5-day" coolers, as originally proposed by DUSA, but was due to a
number of factors:
a
a
a
Failure to use regular ice, rather than "blue ice"
Failure to ensure that there is a proper ratio of ice to sample volume
Failure to collect samples on a schedule that minimizes sample transit time from the Mill to the
analytical laboratory
Failure to use "5-day coolers" in all circumstances
Failure to schedule sampling events and identify sample temperature problems early enough in the
sampling period to allow re-sampling during the period, if necessary
a
a
As a result of this analysis, DUSA claims it has changed its sampling practices, effective August 1, 2008,
as follows:
a
a
a
a
o'5-day" coolers will be used in all circumstances to transport groundwater samples
DUSA will use regular ice as a coolant
Ensure there is a proper ratio of ice to sample volume in each cooler
Collect samples early in the week, so that the samples will be received by the analytical laboratory
on a business day and will not sit in transit over the weekend
Collect samples as early in each sampling period as is reasonably practicable, in order to allow for
re-sampling during the period if necessary.
Contact the analytical laboratory upon scheduled receipt of the samples to ensure that they have
been received by the lab within the requisite temperature range
If samples are not received by the analytical laboratory within the required temperature range, the
samples will be re-collected during the same period and the new samples will be submitted to the
analytical laboratory for analysis
DUSA claims it has implemented these new practices effective August 1, 2008. Therefore, it is
recommended that the DRC not pursue a Notice of Violation for the April - June temperature problems at
this time, but give DUSA the benefit of doubt that it has "solved" the temperature problem. However, if
DUSA fails to submit groundwater samples to the analytical laboratory less than the requisite temperature,
the Executive Secretary should pursue other enforcement options.
3.0 Additional Monitoring Not Reported as Required
In Tab B of the 2od Quarter 2008 Report, a field worksheet shows that DUSA collected a groundwater
sample from monitoring well MW-4 on May 27,2008 at 15:05. Included in Tab G of the 2'd Quarter 2008
Report, MW-4 also appears on both Chain of Custody forms sent to Energy Labs and American West
Analytical Labs requesting analysis. No results of these analyses were included in the 2'd Quarter 2008
Report. Since MW4 is a chloroform investigation well, the 2nd Quarter 2008 Chloroform Monitoring
Report (2nd Quarter Chloroform Report) was also reviewed to see if the results were included in that report.
The MW-4 samples collected on May 27,2008 were not included in the 2nd Quarter Chloroform Report.
Although MW-4 was not required to be sampled under the Permit, additional monitoring is required to be
submitted under Part II.F of the Permit, as follows:
Page 5
ADDITI1NALM)NIT1RING By rHE PERMITw. If the permittee monitors any pollutant more frequently than
required by this permit, using approved test procedures as specified in this permit, the results of this
monitoring, shall be included in the calculation and reporting of the data submitted. Such increased
frequency shall also be indicated.
Although it appears that DUSA has inappropriately withheld the results of the groundwater samples in well
MW-4 collected on May 27,2008, DRC staff recommends that the Executive Secretary use enforcement
discretion in this matter, based on:
l. Allow DUSA to provide documentation that it canceled the analysis for the MW4 groundwater
sample collected on May 27,2008, or
2. Allow DUSA to provide the MW-4 results for the groundwater sample collected on May 27,2008
within 10 calendar days of receipt of a Notice of Enforcement Discretion Letter.
4.0 Previous Monitoring Events QA/QC Sdmple Data Problems
QA/QC problems found in the l't Quarter, 2008 groundwater monitoring events showed a number of issues
in non-compliance with the DUSA QAP (for details see July 23,2008 DRC Memo). These antecedent
problems included:
During the January and February 2008 sampling events, TIIF was not analyzed for monitoring well
MW-26 as required. This was a violation of Part I.E.1(dX2) and Part I.G.l(b)of the Permit.
During the March 2008 monitoring event, DUSA failed to meet sample preservation requirements,
in that they arrived at the analytical laboratory above the maximum temperature of 4oC for several
constituents (sea 8/4/08 DRC NOV). These sample temperature exceedances were a violation of
Section 9.3(d) of the QAP and Part I.E.4(a) of the Permit (see August 4,2008 DRC NOV,
Violation No. 1).
During the February and March,2007 monitoring events, Relative Percent Difference (RPD) was
greater than 20Vo in original sample compared to the duplicate sample for several constituents.
These QA/QC problems were 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):
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.
Starting with the submittal of the 4ft Quarter 2007 Groundwater Report, DUSA will be
required to provide documentation for each RPD calculation used during its review of
analytical reports in a spreadsheet to be included in each groundwater report submitted to the
DRC.
5.0 2nd Quarter 200S QA/QC Sample Data Problems
The following are QA/QC problems that occurred in the monitoring events during the 2nd Quarter, 2008.
The issues listed below are in non-compliance with the QAP and details can be found in Table 4 attached
to this memo.
May 14, 2008 Accelerated Monitoring Event (Table 4)
o The field blank (MW-60) had detectable concentrations of chloroform.
o The field blank (MW-60) was also analyzed for heavy metals, VOCs, and gross alpha. According
to the QAP, DUSA is not required to collect a field blank. However, if DUSA wants to collect a
1)
2)
Page 6
field blank for in house QA/QC, the DRC has no problem with it as long as they don't use the field
blank results to flag or disqualify the groundwater sample results.
2nd Ouarter 2008. Sampling Date: May 27 - June 18. 2008 (Table 4)
o The field blank (IvtW-60) had detectable concentrations of nitrate + nitrite (as N), chloroform,
fluoride, chloride, TDS, bicarbonate, sodium, potassium, magnesium, and calcium.
o The field blank (MW-60) was also analyzed for nutrients, heavy metals, gross alpha, VOCs, and
inorganics. According to the QAP, DUSA is not required to collect a field blank. However, if
DUSA wants to collect a field blank for in house QA/QC, the DRC has no problem with it as long
as they don't use the field blank results to flag or disqualify the groundwater sample results.
o Relative Percent Difference was greater than207o in original sample (MW-5, 84 pglL) compared
to duplicate sample (MW-75, 58 pglL) for iron (36.62Vo), see Table 4. This is in violation of
Section 9.1.4(a) of the QAP. When DUSA submits an original and duplicate sample to the DRC
for reporting purposes, the DRC will use the sample with the highest concentration submitted to
determine compliance. However, both samples were below the GWCL for iron (2,750 ttglL).
It doesn't appear that DUSA is using the presence of detectable concentrations in the field and equipment
rinse blanks in the 2nd Quarter, 2008 groundwater report to flag or disqualify the groundwater sample
results. Furthermore, the approved QAP is currently silent on how field blanks results should have a
bearing on groundwater sample interpretation.
6.0 Apparent Violations
1. DUSA groundwater samples for VOCs from 12 wells received by the analytical laboratory for the
April, May, and June, 2008 monitoring events failed to meet sample preservation requirements, in
that they arrived at the laboratory at a temperature above the maximum allowed temperature of 4oC
. Therefore samples collected during these sampling events are not representative of the monitored
activity conducted for the April - June sampling events. These temperature exceedances are in
violation of Part I.E.4(a) and Part II.A of the Permit. This is a continuing violation cited
previously in a January 11, February 28, April 1, and August 4,2008 DRC NOVs.
2. DUSA collected a groundwater sample from MW-4 on May 27,2008 that was not required under
the Permit. Although, MW-4 is a chloroform investigation well, the results were not included in
the 2nd Quarter 2008 report. Failing to submit results for this additional monitoring is in violation
of Part II.F of the Permit.
APPENDIX 1
QA/QC
Tables
TABLE 2
MONITOB WELLS WITH CONTAMINANT(S) WITH GROSS ALPHA
COUNTING VARIANCE EXCEEDING 20%
(pci/L)
ivell
)ontaminant(s)
Groundwater Gradient
Belationship to Tailing Cells1st Qtr 2008
Jan - March
Concentration
+ Error Term
Counling
Variance
2nd Otr 2008
April - June
Concentration
+ Error Term
Counting
Variance
r'lw-l 1.2 kl-0.4\1.6 33o/"Jp qradient ol the site.
/w-2 1 4 (+l-0.4)1.8 28.5"/"Directly southwest of the southwest
corner and down gradient of Tailing Cell
1.
/lw-3 1.1 Gl-O.4\36.3"/")own oradient of all the tailino cells
1 1 (+/-O.4)1.5 36.30/.)own oradient of all the tailino cells
/lw-5 1 2 Ut-O 4\'1.6 33.0"/")own oradient ot Tailino Cell 3.
/lw-1 1 0.9 (+/- 0.3)1.2 33"/"1.2 (+/-0.5)1.7 42%)irectly down gradient ol Tailing Cell 3
/tw-12 1.2 Gl-0.4\1.6 33o/")own oradienl of Tailino Cell 3
/lw-14 1.3 (+t 0.4)1.7 30.7%1.1 (+/{.a)36.3%
firectlv down oradient ol Tailinq Cell 4A.
/lw-15 1.1 (+/-0.a)1.5 36.3%)irectly near ihe southwest corner and
lown oradient of Tailino Cell 4A
ilw-17 0.9 (+/- 0.3)1.2 33o/o )irectly south of and down gradient o,
railind aall 1A
1.2 /+t-O.4\1.6 3304 Jo oradient of the site
/lw-19 1.3 (+r0.4)17 28.5o/o )irectly northeast and up gradient ol mill
iite.
./lw-20-2.1 (+/-0.5)2.6 23.8o/o fown oradient of all the tailino cells
ilw-23'1.9 (+t0.s)2.4 26.3"/"firectly on the southwest corner and
Jown oradient ot Tailino Cell 3.
'AW-24',0.2 (+/- 0.3)0.5 150"/o 0.9 (+r 0.s)1.2 33o/"firectly on the southwest corner and
lown oredient of Tailino Cell 1
'/lW-25"1.9 (+/- 0.4)2.3 21vo 1.4 (+/-0.5)'1.9 35.7"/"firectly on the southeast corner and
)ross oradient of Tailino Cell 3.
'/lw-26 2.3 (+/- 0.6)2.9 26"/"2.9 (+/-0.6)3,5 20.6%Easi and cross gradieni olTailing Cell 2.
NIW-26 is a pumping well. Pumping
from this well will capture some
groundwater under the eastside of
Tailino Cell 2
'AW-27',2.0 (+l- O.4\2.4 20o/o 1.9 (+10.5)2.4 26.3"/"\,lear the northeast corner and
rnoredienl ol Tailino Cell I
ow-zd'1.2 (+l- O.5\1.7 41.6"/o 1.3 (+r0.4)1.7 28.5"/"Directly on ihe north side and up
gradient of Tailing Cell 2, and directly on
the south side and down gradient of
Tailino Cell 1.
/lw-29'2.1 (+/- 0.5)2.6 23.8"/"1 (+l-o.a)I_5 36.3%Directly on the south side and upgradien
o, Tailing Cell 3, and directly on the
south side and down gradient of Tailing
noll ,
/lw-30-1.0 (+l 0.3)1.3 30o/"0.8 (+/- 0.3)1.1 3 /.5-/o Directly on the north side and upgradient
of Tailing Cell 3, and directly on the
south side and down gradient ol Tailing
Cell2.
/lw-31'1.7 (+l= 0.4)2.1 23.5o/o 1.3 (+/-0.4)1.7 28.5"/"Directly on the north side and upgradient
of Tailing Cell 3, and directly on the
south side and down gradient of Tailing
.:all ,
ilw-32 2.8 (+/- 0.6)3.4 21.4vo 3.5 (+r0.6)4.1 17-10/.Directly near the southeast corner and
cross gradient of Tailing Cell 2 and
directly near the northeast corner and up
oredient ol Tailino Cell 3
t = Unregulated well
Blank cells = gross alpha concentration below laboratory detection limit (>1.0 pCi/L). Therefore, no counting variance reported
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APPENDIX2
Monitor Well Concentration Tables for:
MW-l, MW-2, MW-3, MW-5, MW-l1, MW-12, MW-14,
MW-15, MW-17, MW-18, MW-19, MW-20, and MW-22 through MW-32
MW-1
Concentrations in bold exceed the GWQS
Concenlrations shaded in yellow exceed the GWCL
(a) = Quarterly accelerated monitoring evenl. The gross alpha counting vadance exceeded 20%
Nol Sampled during 2nd Ouarler (June) 2007. This well was sampled in July 2007 as part ol a hydrogeologic study per{ormed by the University ol Utah.
This study required undisiurbed water in this well lor at least 2 months prior to sampling.
Contaminant
GWOS GWCL
(Class ll)(")1 st qtr. 2oo7
Jan - March
311612007
2nd qtr. 2007
April - June
(")3rd qtr. 2oo7
July - Sept.
813012007
4th qtr. 2007
Oct. - Dec.
10/31t2007
(")1st qtr. 2oot
Jan - March
311912008
2nd qtr. 2008
April - June
614t2008
Parameters Listed in Table 2
Nutrients (mo/L)
\mmonie /as N)25 6.25 o.27 0.09
{itrate + Nitrite (as N)10 2.5 <0.1 o.42
Heaw Metals (zoll)
\ rscnic 50 12.5 <5.0 <5.0
leryllium 4 1 <0.50 <0.50
--admirrm 5 1.25 <0.50 <0.50
]hromium t00 25 <25 <25
lobalt 730 182.5 <10 <10
looper 1,300 325 <10 <10
ron 11,000 2,750 <30 88
-ead '15 3.75 <1.0 <1.0
Vlanoanese 800 200 229 30 '15 10 66
Vlercurv 2 0.5 <0.50 <0.50
vlolybdenum 40 10 <10 <10
tlickel 100 25 <20 <20
ielenium 50 12.5 <5.0 <5.0
iilver 100 25 <10 <10
fhallium 2 0.5 <0.50 <0.50
ln 17,000 4,250 <1 00 <1 00
Jranium 30 7.5 0.94 1.08
/anadium 60 15 <15 <15
ainc 5.000 1.2s0 <10 <10
Flediolnninc lnCi/l \
iross Alpha 15 3.75 1.2 (+/-0.6)1.2 G^O.4\
VOC {zoll)
\cetone 700 175 <20 <20 <20 <20
Jenzene 5 1.25 <1.0 <1 .0 <1 .0 <1.0
2-Butanone (MEK)4,000 1,000 <20 <20 <20 <20
)arbon Tetrachloride 5 1.25 <1.0 <1 .0 0 ,0
)hloroform 70 17.5 <1.0 <1.0 0 .0
lhloromethane 30 7.5 <1.0 <1.0 .0 .0
)ichloromethane 5 1.25 <1.0 <1.0 .0 0
tlaphthalene 100 25 <1.0 <1.0 .0 .0
fetrahvdroluran (THF)46 11.5 14 15 16 <2.O 2.6
[oluene 1,000 250 <l.0 <1 .0 <1.0 .0
(vlenes(total)10.000 2,s00 <1 .0 <1 .0 <1.0 0
Others
;ield DH (S.U.)6.5 - 8.t 7.79 7.48;luoride (mq/l)4 1 0.3 0.3
lhloride (mo/l)17 15
iullate (mq/l)753 726
tDS (mo/l)1.390 1,220
ieneral lnoroanics Listed in Part l.1.(cl(2)liil
larbonate (mo/l)<1.0 <l.0
licarbonate (mq/l)300 286
iodium (mo/l)171 174)otassium (mg/l)4.2 6.92
lesium (mq/l)64.2 59.5
)alcium (mo/l)176 164
total anions (meo/L)21.1 20.3
Total cations (meo/L)21.7 20.8
MW-2
'The gross alpha counting variance exceeded 2070
Nol Sampled during 2nd Quarter (June) 2007. This wellwas sarpled in July 2OO7 as part ol a hydrogeologic study pedored by the Univereity of Utah. This study
required mdisturbed water in this rell for at le6t 2 mths prior to sartsing.
Contaminant
GWOS UWUL
(Class lll)
MW-2 (Semi-Annual Monitorino)
2nd qtr. 2005
April - June
612112005
4th qtr. 2005
Oct. - Dec.
1211412005
2nd qtr. 2006
April - June
612012006
4th qtr. 2006
Oct. - Dec.
1012412006
zndqt.2OO7
April - June
4rh qtr. 2007
Oct. - Dec.
'1o12312007
2ndqtr.2008
April - June
Al llrnnq
Parameters Listed in Table
Nutrients (md/L)
\mmonia (as N)25 lz_c <0.05 0.08 o.12 <0.05 <o.05 <0.05
!rlrate + Nrlnle (as Nl lo <ol <o1 t)1 <0.1 <0.1 <0.1
Heaw Metals (uoll)
\rsenic 50 25 <5.0 <5.0 <5.0 <5.O <5.0 <5o
lervllium 4 2 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
;admium <0 50 <0 50 o85 <0.50 <C 50 <0.50
lhromium 100 50 <25 <25 <25 <25 <25 <25
lobalt 730 365 <10 <10 <10 <10 <'10 <lu
looper 1 300 650 <t()<lo <10 <10 <10 <10
ron 1 t.000 5.500 <30 <30 <30 <llt)<:{( )<30
-ead l5 8 <1.0 < 1.0 <1.0 <1.0 <1.0 <1.O
vlanoanese 800 400 10 <1o <10 <10 <10 <10
vlercurv 2 1 <0.50 <0.50 <0.50 <o 50 <o 50 <0.50
vlolvbdenum 40 20 <10 <10 <10 <'10 <10 <'l o
{ickel 100 50 <20 <20 <20 <20 <20 <20
lelenium 50 25 7 18.5 7.7 143 8.1 <5.0
iilver 100 50 <10 <10 <10 <10 <10 <10
fhallium 1 <o 50 <o 50 <0.50 <0.50 <0.50 <0.50
l-in 17.000 8.500 <1 00 <.I U{J <ltrt)00
Jranium 30 15 6.25 13.9 12 12.2 10.3 8.68
/anadium 60 30 <15 <15 <15 <t5 <15 <15
Zinc 5.000 2,500 12 <10 11 <10 14 <10
Radiolooics foCi/L)
iross Aloha 15 7.5 <1.0 <1.0 <1.0 17 Gl-O1 13 -o 5\1 4 (+l-O 4\
VOC holl 't
\cetone 700 350 <20 <20 <20 <20 <20 <20
Senzene 2.5 <1.0 <'1.0 <1.0 <1.O <1 0 0
2-Butanone (MEK)4,000 2,000 <20 <20 <20 <20 <20 <20
larbon T6trachloride 5 2.5 <'l.0 0 <1 0 <1 (l .0 0
)hlorolorm 70 35 <1.0 0 <1.0 <1.0 .0 o
lhloromethene 30 15 35 o <1.0 2.1 .0 0
)ichloromethane 5 2.5 <1.0 0 <1.0 <1 0 ()0
{aphthalene 100 50 <1.0 0 <1.0 <1.0 .o <1 0
Tetrahvdrofuran (THF)46 23 <1 0 o <1.0 <10 <2.O
Toluene 1.000 500 <1.O 0 <1.0 <1 0 o <1.0(vlcnes{totall to ooo s ooo 1tl o < 1.0 <1.0 <1 0
Others
:ield oH (S.U.)6.5 - 8.5 7.42 7.99 7.64 7.17 741 732:kroride (mcr-/l\4 2 o4 0.3 0.3 o.2 0.3 0.3
lhloride (mc/l)7 7 I 7
)ulfate (mo/l)1 850 '1920 1.880 1.970 '1.990 2.OOO
TDS fmo/l\3060 31 00 3 060 3,550 3.1 00 3.030
General lnoroanics Listed in Part 1.E.1.(c)(2)(
larbonate (mq/l)<1.0 <1.0 < 1.0 <1.0 <1.0 <1.O
licarbonate fmo/l'l 373 409 383 294 396 373
lodium (mc/l)473 483 470 447 460 530rotassium (mo/l)9.7 10 11.4 1 1.5 10.5 10.2
Ulaonesium (mc/l)44.7 92 99 103 100 95
lalcium (mc/l)313 329 315 355 326
Tolal anions (meo/L\44.8 46.8 45.6 46.1 48,1 4A
fotal cations (meo/L)43.4 lts3 M6 477 45.3 4 .4
MW-3
Concentrations in bold exceed the GWQS
Concentrations shaded exceed lhe GWCL
(a) = Quarlerly accelerated monitoring event
Not Sampled duriru 2nd Quarler (June) 2007. This well was sampled in July 2007 as part of a hydrogeologic sludy porform€d by the University
ot Utah. This study required undisturbed wai6r in thiswell tor at leasi 2 monihs prior to sampling.
Contaminant
GWOS GWCL
(Class lll)(')1 st qtr. 2oo7
Jan - March
311612007
2nd qtr. 2007
April - June
(")3rd qtr. 2oo7
July - Sept.
812912007
4th qtr. 2007
Oct. - Dec.
1n,|a112on7
(")1 st qtr. 2oo8
Jan - March
allql)o A
2nd qtr. 2008
April - June
512Al20,0,a
Parameters Listed in Table 2
Nutrients (mc/L)
\mmonia (as N)25 12.5 0.07 <0.05
Nilrate + Nitrite (as N)10 5 0.1 0.18
Heaw Metals (uo/L)
Arsenic 50 25 <5.0 <5.0
3eryllium 4 2 <0.50 <0.50
ladmium 5 2.5 0.98 o.52
lhromium 100 50 <25 <25
lobalt 730 365 <10 <'10
lopper 1 300 650 <10 <10
lron 11.000 5.500 <30 <30
-ead 15 7.5 <1 .0 <l.0
Vanoanese 800 400 848 199 t-950 1-330 810
Mercury 2 1 <0.50 <0.50
Molvbdenum 40 20 <10 <10
!ickel 100 50 21 <20
3elenium 50 25 20.1 33.6 8.9 13.8 20.1
Silver '100 50 <10 <10
Thallium 2 1 0.99 ,.1S 1 _15 0.9 0.86
Tin 17.000 8.500 <1 00 <1 00
Jranium 30 15 30,2 17.4 39:4 35.6 31.3
y'anadium 60 30 <15 <15
7-inc 5.000 2.500 13 19
Radioloqics (pCi/L)
iross Alpha 15 7.5 <1.0 1.1 (+10.4)
VOC (uo/L)
\cetone 700 350 <20 <20 <20 <20
Senzene 5 2.5 <1 .0 <1 .0 <1.0 <1 .0
2-Butanone (MEK)4.000 2.000 <20 <20 <20 <20
larbon Tetrachloride 5 2.5 <1.0 <1 .0 <1 .0 <1 .0
lhloroform 70 35 <1.0 <1 .O <1 .0 <1 .0
lhloromethane 30 15 <1.0 <1.0 <1 .0 <1.0
fichloromethane 5 2.5 <1.0 <1.0 <1 .0 <1.0
tlaphthalene 100 50 <1.0 <'1.0 <1 .0 <1 .0
fetrahvdrofuran (THF)46 23 11 <10 <10 6.5 <2.O
foluene 1.000 500 <1.0 <1 .0 <1.0 <1 .0
(vlenes(total)10.000 5.000 <l.0 <1 .0 <-l.o <1 .0
Others:ield DH (S.U.)6.5 - 8.5 6.95 6.71:luoride (mo/l)4 2 o.4 0.5
lhloride (mc/l)63 64
iulfate (mc/l)3.120 3.340
l-DS (mc/l)5.150 4.800
eneral lnoroanics Listed in Part 1.E.1.(c)(2)(ii)
larbonate (mo/l)<1 .0 <1 .0
licarbonate (mc/l)516 364
iodium (mc/l)804 846rotassium (mo/l)23.3 22.2
Vlaonesium (mc/l)246 247
lalcium (mc/l)482 488
fotal anions (meo/L)75.3 77.3
fotal cations (meo/L)80 82
MW-3A
Concentrations in bold exceed the GWOS
Concentrations shaded exceed the GWCL
Not Sampled during 2nd Quarter (June) 2007. This wsll was sampled in July 2007 as part of a hydrogeologic study performed by the University
of Ulah. This study required undisturbed water in these wells for al least 2 months prior to sampling.
Not Sanpl€d durirq ttE 3rd Ouarter 2007 ard l sl QrBrler 20OB rnonitoring events as required
Contaminant
GWOS UWUL
(Class lll)1st qtr. 2007
Jan - March
311412007
2ndqtr.2007
April - June
3rd qtr. 2007
July - Sept.
4th qtr. 2007
Oct. - Dec.
1013112007
1 st qtr. 2008
Jan - March
2nd qtr. 2008
April - June
5t28t2008
Paramelers Listed in able
Nutrients (mo/L)
\mmonia (as N)25 12.5 <0.05 <0.05 <0.05
{itrate + Nitrite (as N)'lo 5 0.9 1.2 0.91
Heaw Metals (uq/L)
\rsenic 50 25 <5.0 <5.0 <5.0
leryllium 4 2 <0.50 1.32 o.77
ladmirrm 5 2.5 1.76 1.23 0.76
)hromium 100 50 <25 <25 <25
)obalt 730 365 <10 <10 <10
lopoer 1.300 650 <10 <10 <10
ron 'I 1.000 5.500 <30 <30 <30
-ead 15 7.5 <1 .0 <1 .0 <1 .0
Vlanqanese 800 400 253 142 64
Vlercury 2 1 <0.50 <0.50 <0.50
vlolvbdenum 40 20 <10 <10 <10
{ickel 100 50 26 <20 <20
ielenium 50 25 74 73.9 73.4
iilvcr 100 50 <10 <10 <10
l-hallium 2 1 o.74 1.0'l 0.9
tin 17.000 8.500 <1 00 <1 00 <1 00
Jranium 30 15 21 "9 22.9 22.4
/anadium 60 30 <15 <15 <t5
linc 5.000 2.s00 65 40 34
Radiolooics (DCi/L)
iross Aloha 15 7.5 <1 .0 <1 .0 1 (+l-O.4\
VOC (uo/L)
\cetone 700 350 <20 <20 <20
Jenzene 5 2"5 < 1.0 <1.0 <1 .0
l-Butanone (MEK)4.000 2,000 <20 <20 <20
,-arbon Tetrachloride 5 2.5 <1 .0 0 <1.0
lhloroform 70 35 <1 .0 0 <1.0
lhloromethane 30 15 <1 .0 0 <1.0
Jichloromethane 5 2.5 .0 0 <1.0
\aDhthalene 100 50 .0 0 1.0
Tetrahvdrofuran (THF)46 23 0 <10 <2.0
Toluene 1,000 500 .0 <1.0 <1 .0(vlenes(total)'t0.000 5.000 .o <1.0 <1 .0
Others:ield oH (S.U.)6.5 - 8.5 7.02 6.92 7.30:luoride (mg/l)4 1.2 1.4 1
lhloride (mq/l)oz 60 61
3ulfate (mo/l)3,810 3.470 3,550
IDS (mq/l)5.770 5.490 5.070
ieneral lnorqanics Listed in Part .E.1.(cX2Xii)
larbonate (mq/l)<1 .0 <1.0 <1.0
licarbonate (mq/l)381 324 384
3odium (mq/l)754 741 827)otassium (mq/l)26.9 29.3 28.6
Maonesium (mo/l)303 310 306
lalcium (mo/l)478 479 496
fotal anions (meq/L)87.4 79.4 81.9
otal cations (meo/L)82.8 82.4 86.6
Nole
MW-5
Concentrations shaded exceed the GWCL
(a) = Quarterly accelerated monitoring event
Noi Sampled during 2nd Ouarter (June) 2007. This well was sampled in July 2OO7 as part o, a hydrogeologic study performed by the University of
Ulah. This study required undisturbed waler in ihis well tor al least 2 months prior lo sampling.
Contaminant
GWOS GWCL
(Class ll)(")1sl qtr. 2oo7
Jan - March
311512007
zndqlr.2007
April - June
(')3rd qtr. 2oo7
July - Sept.
812812007
4th qtr. 2007
Oct. - Dec.
1012912007
(')1st qtr. 2oo8
Jan - March
311812008
2nd qtr. 2008
April - June
61181200a
Parameters Listed in Table 2
Nutrients (mc/L)
\mmonia (as N)25 6.25 0.43 0.51
!itrate + Nitrite (as N)10 2.5 <o.1 <0.05
Heaw Metals (uc/L)
\rsenic 50 12.s <5.0 <5.0
3ervllium 4 1 <0.50 <0.50
ladmium 5 1.25 <0.50 <0.50
lhromium 100 25 <25 <25
loball 730 182.5 <10 <10
lopper 1.300 325 <10 <10
ron 11.000 2,750 <30 84
-ead 15 3.7s <l.0 <1 .0
Manqanese 800 200 281 134 142 203 258
Vlercury 2 0.5 <0.50 <0.50
Molvbdenum 40 10 <10 <10
',lickel 100 25 <20 <20
Selenium 50 12.5 <5.0 <5.0
Silver 100 25 <10 <10
hallium 2 0.5 <0.50 <0.50
Iin 17.000 4 25o.<1 00 <1 00
Jranium 30 7.5 0.61 <0.30
/anadium 60 15 <15 <15
7-inc 5.000 1.250 <10 <10
Radiolooics (oCi/L)
iross Alpha 15 3.75 <1 .0 1.2 GLl.41
VOC (uc/L)
\cetone 700 175 <20 <20 <20 <20
3enzene 5 1.25 <1.0 <1 .0 <1 .0 <'1.0
2-Butanone (MEK)4.000 1,000 <20 20 <20 <20
larbon Tetrachloride 5 1.25 <1 .0 <1 .0 0 <1 .0
)hloroform 70 17.5 <1 .0 <1 .0 0 <1 .0
lhloromethane 30 7.5 <1 .0 <1 .0 0 <1 .0
)ichloromethane 5 1.25 <1 .0 <1_0 0 <1 .0
{aphthalene 100 25 <1 .0 <'l _0 0 <1.0
etrahvdrofuran (THF)46 11.5 <10 <10 10 9.2 10
[oluene 1.000 250 <1.0 <1.O 1.4 <1.0
(vlenes(total)10.000 2.500 <1 .0 <1.0 <1 .O <1.0
Others:ield oH (S.U.)6.5 - 8.5 8.09 7.65:luoride (mo/l)4 1 1.1 1.2 t 1 0.9
)hloride (mc/l)50 50
iulfate (mc/l)1,130 1 090
IDS (mc/l)1,880 1 900
ieneral lnorqanics Listed in Part 1.E.1.(cx2l ( ii)
larbonate (mc/l)<'1.0 <1.0
licarbonate (mc/l)378 357
iodium (mc/l)476 503)otassium (mc/l)8.4 7.5
vlaonesium (mcr/l)eoe 38
,'alcium (mc/l)138 135
lotal anions (meo/L)31 .3 30
lotal cations {meo/L)31 .1 32
MW-11
(a) = Monthly accelerated monitoring evenl* The gross alpha counting variance exceeded 207.
Not Sampled during znd Ouarter (Juno) 2007. This well was sampled in July 2OO7 as parl ol a hydrogeologic study perrormed by the University
ot Utah. This sludy required undisturbed waler in this well lor al least 2 months prior lo sampling.
Contaminant
GWOS UWUL
(Class ll)1st qtr. 2007
Jan - March
3l't512007
Zndqlr.2007
April - June
3rd qtr. 2007
July - Sept.
812112007
4th qtr. 2007
Oct. - Dec.
1o-1ao12n,o,7
1 st qtr. 2008
Jan - March
al1Rl2qn,R
2nd qtr. 2008
April - June
A/ t A/2r|rlA
Parameters Listed in Table 2
Nutrients (mq/L)
\mmonia (as N)25 6.25 0.66 0.64 0.65 0.59 0.63
{itrate + Nitrite (as N)10 2.5 <0.1 <0.1 <0.1 <0.1 <0.05
Heaw Metals (ucr/L)
\rsenic 50 12.5 <5.0 <5.0 <5.0 <5.0 <5.0
lervllium 4 1 <0.50 <0.50 <0.50 <0.50 <0.50
)admium 5 1.25 <0.50 <0.50 <0.50 <0.50 <0.50
lhromium 100 25 <25 <25 <25 <25 <25
lobalt 730 182.5 <10 <10 <10 <10 <10
loooer 1.300 325 <10 <'10 <10 <10 <10
ron 11.000 2.750 30 13s 141 206 112
-ead 15 3.75 <1.0 <1 .O <1.0 <1 .0 <1 .0
Vlanqanese 800 200 107 72 80 70 74
VIercury 2 0.5 <0.50 <0.50 <0.50 <0.50 <0.50
14olybdenum 40 10 <10 <10 <10 <10 <10
{ickel 100 25 <20 <20 <20 <20 <20
lelenium 50 12.5 <5.O <5.0 <5.0 <5.0 <5.0
lilver 100 25 <'10 <10 <10 <10 <10
fhallium 2 0.5 <0.50 <0.50 <0.50 <0.50 <0.50
lin 17.000 4.250 <'100 <100 <1 00 <1 00 < 100
Jranium 30 7.5 1.04 <0.30 <0.30 <0.30 <0.30
/anadium 60 15 <15 <'15 <15 <15 <15
7-inc 5.000 1.250 <10 <10 <'10 <to <10
Radiolooics (oCi/L)
fross Aloha 15 3.75 <1 .0 <1 .0 .0.9 (+/- 0.3)1.2 (+10.5)
VOC (uo/L)
\cetone 700 175 <20 <20 <20 <20 <20
Senzene 5 1.25 <1 .0 <1 .0 <1 .0 <1.0 <1.0
l-Butanone (MEK)4,000 1.000 <20 <20 <20 <20 <20
larbon Tetrachloride 5 1.25 .0 <1.0 0 <1.0 <1 .0
lhloroform 70 17.5 .0 <1 .0 0 <1 .0 <1 .0
lhloromethane 30 7.5 .0 <1.0 0 <1 .0 <1 .0
)ichloromethane 5 1.25 .0 <1 .0 0 <'l .0 <1 .0
{aohthalene '100 25 .0 <1.0 0 <'l .0 <1 .0
fetrahvdrofuran (THF)46 11.5 <10 <10 <10 <2.0 <2.0
foluene 1.000 250 <1.0 <1.0 <1.0 <1 .0 <1 .0
(vlenes(total)10.o00 2.500 <1 .0 <1.0 <'l .o <1 .0 <1 .O
Others:ield pH (S.U.)6.5 - 8.5 6.94 8.08 8.08 7.91 7.87:luoride (mo/l)4 1 0.6 0.7 0.5 0.6 0.5
lhloride (mo/l)31 30 ,a 29 30
Sulfate (mo/l)1,120 1,060 1,020 1.040 't o50
IDS (mc/l)2.O40 1,800 1.770 '| ,750 1.790
ieneral lnoroanics Listed in Part l-E.1.(c){2)(ii)
larbonate (mq/l)<1 .0 <1.0 <l.0 3 <1.0
3icarbonate (mq/l)375 383 378 380 356
iodium (mo/l)571 568 580 606 632)otassium (mq/l)7.6 6.2 7.5 6 6.1
vlaqnesium (mq/l)22.1 10.9 11.1 10 10.7
lalcium (mo/l)69.2 39.2 40.3 38.1 40.8
[otal anions (meq/L)30.4 29.2 28.3 28.9 28.5
fotal cations (meq/L)30.4 27.8 28.4 29.3 30.6
MW-12
Concentralions shaded exceed the GWCL
(a) = Quarierly accelerated moniloring event
Not Sampted during 2nd Ouarter (June) 2007. This well was sampled in July 2007 as parl ol a hydrogeologic sludy perlormed by lhe University of
Utah. This study required undisiurbed water in this well tor at least 2 monlhs prior lo sampling.
Contaminant
GWOS GWCL
(Class lll)
MW-1 2 (Semi-Annual Monitorino)
(")1st qtr. 2oo7
Jan - March
?,l17lrno7
2nd qtr. 2007
April - June
(")3rd qtr. 2oo7
July - Sept.
812812007
4th qtr. 2007
Oct. - Dec.
1012312007
(")1st qtr. 2oo8
Jan - March
311812008
2nd qtr. 2008
April - June
611712008
Parameters Listed in Table 2
Nutrients (mo/L)
\mmonia (as N)25 12.5 <0.05 <0.05
{itrate + Nitrite (as N)10 5 <0.1 0.1
Heaw Metals (uq/L)
\rsenic 50 25 <5.0 <5.0
lervllium 4 2 <0.50 <0.50
ladmium 5 2.5 <0.50 <0.50
)hromium 100 50 <25 <25
,-obalt 730 365 <10 <t0
)oooer 1.300 650 i10 <10
ron 't 1.000 5.500 68 <30
-ead 15 7.5 <1.0 <1.0
Ulanganese 800 400 279 57 60 29 32
Ulercury 2 1 <0.50 <0.50
Jlolybdenum 40 20 <10 <10
{ickel 100 50 <20 <20
lelenium 50 25 10.7 7.9
Silver 100 50 <10 <10
Ihallium 2 1 <0.50 <0.50
Iin 17,000 8,500 <1 00 <1 00
Jranium 30 15 19.4 8.68 19.2 16.8 16.7y'anadium 60 30 <15 <15
7-inc 5.000 2.500 10 <10
Radiolooics (oCi/L)
3ross Aloha 15 7.5 <1 .0 1.2 (+l-O.4\
VOC (ucr/L)
qcetone 700 350 <20 <20 <20 <20
3enzene 5 2.5 <1 .0 <1.0 <1 .0 <1 .0
2-Butanone (MEK)4,000 2,000 <20 <20 <20 <20
larbon Tetrachloride 5 2.5 <1 .0 <1 .0 <-1.0 <1 .0
lhloroform 70 35 <1 .0 <1 .0 <1 .0 <1 .0
lhloromelhane 30 15 <1 .0 <1 .0 <1 .0 <1 .O
)ichloromethane 5 2.5 <1.0 <1 .0 <1 .0 <'l.o
\aphthalene 100 50 <1.0 <1 .0 <1 .0 <1 .0
Ietrahvdrofuran (THF)46 23 3A <10 <10 <2.O 3
foluene 1,000 500 <'1.0 <1 .0 <1.0 <1 .0
(vlenes(total)10,000 5,000 <1 _O <1 .0 <1.0 <l.o
Others
:ield pH (S.U.)6.5 - 8.5 7.30 7.08:luoride (mq/l)4 2 o.2 0.3
lhloride (mq/l)58 54
3ulfate (mq/l)2.290 2,270
IDS (mq/l)3.800 3,530
Seneral lnoroanics Listed in Part .E.1.(cX2):ii)
larbonate (mq/l)<1 .0 <1 .O
licarbonate (mq/l)439 200
iodium (mq/l)282 300)otassium (mq/l)13.2 13
Vlaonesium (mo/l)224 207
)alcium (mq/l)524 525
fotal anions (meq/L)56.5 55.3
fotal cations (meo/L)57.2 56.6
MW.14
Contaminant
GWOS GWCL
(Class lll)
VIW-1 4 (Quarterlv Monitorino)
January
(")Monthly Accl.
'1129/20,0,a
February
(")Monthly Accl.
212n,120/0,a
1st qtr. 2008
Jan - March
3t19t200,4
April
(u)Monthly Accl.Llrolti 9
May
(u)Monthly Accl.
E|1 AID^ A
2nd qtr. 2008
April - June
6t18t2008
rarameters Listed in Table 2
Nutrients (mc/L)
Ammonie les N\25 12.5 o.12 <0.05
{itrale + Nitrite (as N)'to 5 <oI <o 05
Heaw Metals (uo/L)
\rsenrc,50 25 <5.0 <5.0
lervllium 4 2 <0.50 <0.50
ladmium 5 2.5 0.99 0.91
)hromium 100 50 <20 <20
lobalt 730 365 <10 <10
0pDer 1,300 650 <10 <10
ron 1 1.000 5.500 <30 <30
-ead '15 7.5
2,2tn 2:080
<1.0
2,161)2,420
<1.O
vlanoanese 800 400 2.,280 2.29,,
vlercurv 2 I <0.50 <0.50
vlolvbdenum 40 20 <lo <10
{ickel 100 50 <20 <20
ielenium 50 25 <5.0 <5.0
iilver 100 50 <10 <10
I-hallium 2 I <0.50 <0.50
l-in 17,000 8,500
65.1 il.1
<100
6,;8 62.6
<100
Jranium 30 15 65.8 61.5
60 30 <15 <15
1C 5 000 2 500 <lo 14
Radiolooics (oCi/L)
iross Aloha 't5 7.5 1.3 (+/- 0.4)'l. l (+/- 0.4)
VOC (uo/L)
\cetone 700 350 <20 <20
lenzene 5 2.5 <1.0 <1.0
2.Butanone (MEK)4 000 2,000 <20 <20
)arbon Tetrachloride 5 2.5 <1.0 .0
lhlorolorm 70 35 <1.0 .o
lhloromethane 30 l5 <1.0 .0
)ichloromethane 5 2.5 <1.0 .0
{aphthalene 100 50 <1.0 .0
[etrahvdrofuran (THF)46 23 <2.O <2.O
foluene 1.000 500 <1.0 <1.0
(vlenes(total)10 000 ooo <1 0 <1 0
Olhers:ield oH (s.u.)Aq.RE 7.72 6.88:luoride (mq/l)4 2 o.2 o.2
)hloride (mo/l)20 18
iullate (ms/l)2.27o 2,200
fDS (mo/l)3.420 3,620
ieneral lnoroanics Listed in Part E.1.(cX2Xii)
larbonate (mo/l)<1.0 <1.0
licarbonate (mc/l)473 440
iodium (mq/l)332 359
)otassium (mo/l)11.1 12.2
vlaonesium (mc/l)155 152
]alcium (mq/l)500 527
fotal anions (mec/L)55.7 53.6
total cations (meo/L)52.6 54.7
Concentrations in bold exceed the GWQS
Concentrations shaded exceed the GWCL
(a) = Quarterly accelerated rnonitoring event
' The gross alpha counting variance erceeded20k
Not Sarrpled during 2nd Quarter (Jun€) 2007. This well was sampled in July 2007 as part of a hydrogeologic stldy
pedonrEd by the University of Utah. This study required undisturbed water in this well lor at least 2 rmntl'ls prior to
saffpling.
Nd sarg€tq4ine lr$ $sy 2007"?pcqryfl$&$#rih{iq e€rit as ro$rlrEd "i" ' i nW ,u
MW-15
Concentrations in bold exceed the GWOS
Concentralions shaded exceed the GWCL
(a) = Quarterly accelerated monitoring eveni
Not Sampled during 2nd Ouarter (June) 2007. This well was sampled in July 2OO7 as parl of a hydrogeologic strdy perlormed by the University
of Utah. This sludy required undisturbed wate. in this well ,or at least 2 monlhs prior to sampling-
Contaminant
GWOS GWCL
(Class lll)(")1st qtr. 2oo7
Jan - March
311512007
2nd qtr. 2007
April - June
(")3rd qtr. 2oo7
July - Sept.
812912007
4th qtr. 2007
July - Sept.
1012912007
(")1st qtr.2oo8
Jan - March
311112008
2nd qtr. 2008
April - June
6/1 8/2008
Parameters Listed in Table 2
Nutrients (mo/L)
\mmonia (as N)25 12.5 <0.05 <0.05
,,litrate + Nitrite (as N)10 5 0.1 0.15
Heaw Metals (ucr/L)
\rsenic 50 25 <5.0 <5.0
lervllium 4 2 <0.50 <0.50
)admium 5 2.5 <0.50 <0.50
lhromium 100 50 <25 <25
lobalt 730 365 <10 <10
loooer '1.300 650 <10 <10
ron 11,000 5,500 <30 <30
-ead 15 7.5 <1.0 <1 .0
Vanoanese 800 400 <10 <10
VIercury 2 1 <0.50 <0.50
Vlolybdenum 40 20 <10 <10
\,lickel 100 50 <20 <20
3elenium 50 25 89.6 94 94 t13 1$
3ilver 100 50 <10 <10
fhallium 2 1 <0.50 <0.50
lrn 17,000 8,500 <1 00 <1 00
Jranium 30 15 46.5 28-6 51 48,3 lB;9
y'anadium 60 30 <15 <15
7-inc 5.000 2.500 <10 <10
Radiolooics (oCi/L)
iross Alpha 15 7.5 <1.0 .'1.1 (+/- 0.4)
VOC (uo/L)
qcetone 700 350 <20 <20
3enzene 5 2.5 <1 .0 <1 .0
2-Butanone (MEK)4.000 2.000 <20 <20
larbon Tetrachloride 5 2.5 <1 .0 <1.0
lhloroform 70 35 <1 .0 <1.0
lhloromethane 30 't5 <1.0 <1.0
)ichloromethane 5 2.5 <1.0 <1 .0tlaphthalene10050<1 .0 <1 .0
[etrahvdrofuran (THF)46 23 <1 .0 <2.0
foluene 1.000 500 <1 .0 <1.0
(vlenes(total)10.000 5.000 <l.o <1.0
Others:ield pH (S.U.)6.5 - 8.5 7.21 6.99:luoride (mo/l)4 2 0.2 0.2
)hloride (mo/l)Jb 37
iulfate (mc/l)2.340 2.400
l-DS (mo/l)3,660 3.680
ieneral lnoroanics Listed in Part 1.E.1.(c)(2))
larbonate (mc/l)<1 .0 <1 .0
licarbonate (moil)454 415
lodium (mc/l)457 520)otassium (mc/l)10.6 10.4
vlaonesium (mc/l)165 't 58
)alcium (mc/l)440 444
[otal anions (meo/L)57.2 57.9
lotal cations (meo/L)55.7 58.1
MW-17
Contaminanl
GWOS GWCL
(Class lll)(")1st qtr. 2oo7
Jan - March
311612007
zndqr2007
April - June
6/2012007
(")3rd qtr. 2oo7
July - Sept.
812912007
4th qtr. 2007
Oct. - Dec.
1012912007
(")1 st qtr. 2oo8
Jan - March
3t1212008
2nd qtr. 2008
April - June
512812008
Parameters Listed in Table 2
Nutrients (mc/L)
\mmonia (as N)25 12.5 <0.05 <0.05 <0.05
{itrate + Nitrite (as N)10 5 0.3 0_4 0.5
Heaw Metals (uo/L)
\rsenic 50 25 <5.0 <5.0 <5.0
lervllium 4 2 <0.50 <0.50 <0.50
ladmium 5 2.5 <0.50 <0.50 <0.50
lhromium 100 50 <25 <25 <25
lobalt 730 365 <10 <10 <10
)opper 1,300 650 <10 <10 <10
ron 11,000 5,500 <30 <30 <30
-ead 15 7.5 <1.0 <1.0 <l.0
r'lanqanese 800 400 91 73 108
r'lercury 2 <0.50 <0.50 <0.50
i/lolYbdenum 40 20 <10 <10 <10
{ickel 100 50 <20 <20 <20
ielenium 50 25 <5.0 5.4 7.8
lilver 100 50 <10 <10 <10
l-hallium 2 <0.50 <0.50 <0.50 <0.50 <0.50
tn 17,000 8,500 <1 00 <1 00 < 100
Jranium 30 15 x,4 't8.2 20.1 31 28.3 29_4
/anadium 60 30 <15 <15 <15
Iinc 5.000 2.500 <10 <10 <10
Radiolooics (oCi/L)
iross Aloha 15 7.5 <1 .0 <l.0 -0.9 (+/. 0.3)
VOC (uo/L)
\cetone 700 350 <20 <20 <20
Jenzene 5 2.5 <1 .0 <1.0 <1.O
l-Butanone (MEK)4,000 2,000 <20 <20 <20
)arbon Tetrachloride 5 2.5 .0 <1 .0 <1.0
)hloroform 70 35 0 <1 .0 <1 .0
)hloromethane 30 15 .0 <1.0 <1 .0
)ichloromethane 5 2.5 .0 <1.0 <1 .0
'laphthalene 100 50 .0 <1.0 <1 .0
fetrahvdrofuran (THF)46 23 <10 <10 <2.O
[oluene 1,000 500 <1 .0 <1.0 <'l.0(vlenes(total)10.ooo 5,000 <1 .0 <1 .0 <1.0
Others
:ield pH (S.U.)6.5 - 8.5 7.24 7.O7 7.29:luoride (mq/l)4 2 o.4 0.3 0.3
lhloride (mo/l)29 28 32
iulfate (mo/l)2.560 2.510 2,54A
rDS (mq/l)4.160 3.980 4,030
Seneral lnorqanics Listed in Part E.1.(c)(2)(ii)
larbonate (mq/l)<l.0 <1 .0 <1 .0
ficarbonate (mo/l)515 521 474
iodium (mq/l)637 624 648rotassium (mq/l)14.3 't3 12.4
Vlaqnesium (mq/l)198 188 188
lalcium (mo/l)381 371 386
[otal anions (mec/L)62.7 61.7 b t.b
fotal cations (meo/L)63.4 61 .5 oJ,z
Concentrations in bold exceed the GWQS
Concenlrations shaded exceed the GWCL
(a) = Quarterly accelerated moniloring eveni. The gross alpha counling variance exceeded 2O"/o
MW-18
Concentrations in bold exceed the GWOS
Concenlrations shaded exceed the GWCL
(a) = Quarterly accelerated monitoring event* The gross alpha counting variance exceeded 207"
Not Sampled during 2nd Ouarler (June) 2007. This well was sampled in July 2007 as parl of a hydrogeologic study performed by the University
of Uiah. This study required undisturbed water in this well for at leasl 2 months prior to samplirE.
Contaminant
GWOS GWCL
(Class ll (")1 st qtr. 2oo7
Jan - March
311612007
2nd qir. 2007
April - June
(")3rd qtr. 2oo7
July - Sept.
812912007
4th qtr. 2007
Oct. - Dec.
1013012007
(")1 st qtr. 2oo8
Jan - March
3t1',U2008
2nd qtr. 2008
April - June
61412008
Parameters Listed in Table 2
Nutrients (mo/L)
\mmonia (as N)25 6.25 0.17 <0.05
{itrate + Nitflte (as N}'t0 2.5 <0-1 <0.05
Heaw Metals (uq/L)
\rsenic 50 12.5 <5.0 <5.0
leryllium 4 1 <0.50 <0.50
ladmium 5 1.25 <0.50 <0.50
lhromium 100 25 <25 <25
)obalt 730 182.5 <10 <10
lopper 1.300 325 <10 <10
ron 11.000 2.750 509 314
-ead 15 3.75 <1 .0 <1.0
vlanqanese 800 200 219 154 .119
Vlercury 2 0.5 <0.50 <0.50
vlolvbdenum 40 't0 <10 <10
{ickel 100 25 <20 <20
lelenium 50 12.5 <5.0 <5.0
iilver 100 25 <10 <10
l-hallium 2 0.5 1.85 0.96 o.89 1.11 1.34
l-in 17.000 4.250 <100 <'100
Jranium 30 7.5 46.9 36.t5 39.2 42.4 /M-8
/anadium 60 15 <'15 <15
Zinc 5.000 'I .250 19 <10
Radiolooics (DCi/L)
iross AlDha 15 3.75 'I .7 (+/-0.6)*1 .2 (+l- O.4\
VOC (ucr/L)
\cetone 700 175 <20 <20
lenzene 5 1.25 <1.0 <1 .0
|Butanone (MEK)4.000 1.000 <20 <20
)arbon Tetrachloride 5 1.25 <1.0 <1 .0
lhloroform 70 17.5 <1.0 <1 .0
lhloromethane 30 7.5 <1.0 <1 .0
)ichloromethane 5 1.25 <1 .0 <1 .0
tlaohthalene 't 00 25 <1 .0 <1 .0
letrahvdrofuran (THF)46 '1 1.5 <1 .0 <2.0
foluene 1.000 250 <1 .0 <1 .0
(vlenes(total)'10.000 2.500 <1 .0 <1 .O
Others
:ield pH (S.U.)6.5 - 8.5 7.03 7.05:luoride (mq/l)4 1 0.2 0.2
)hloride (mq/l)48 55
iulfate (mq/l)1,700 1,870
l-DS (mo/l)2,840 3,100
]eneral lnoroanics Listed in Part l.E.'l .{c)(2 ( ii)
larbonate (mo/l)<1 .0 <l.0
licarbonate (mq/l)429 423
iodium (ms/l)196 193)otassium (mq/l)9.5 9.6
vlaqnesium (mq/l)104 126
)alcium (mq/l)501 546
fotal anions (meq/L)43.9 47.5
fotal cations (meq/L)42.3 46.2
MW-19
Concenlrations shaded exceed the GWCL
(a) = Quarterly accelerated monitoring event
Not Sampled during 2nd Quarter (June) 2007. This well was sampled in July 2007 as pafl ot a hydrogeologic study performed by lh€ Univarsity
of Utah. This study roquirad undisturbod water in this well tor at least 2 rrcnths prior to sampling.
Contaminant
GWQS (iWUL
(Class ll (")1st qtr. 2oo7
Jan - March
311912007
2nd qtr. 2007
April - June
(")3rd qtr. 2oo7
July - Sept.
813012007
4th qtr. 2007
Oct. - Dec.
1013012007
(")1st qtr. 2oo8
Jan - March
311112008
2nd qtr. 2008
April - June
61412008
Parameters Listed in Table 2
Nutrients (mo/L)
\mmonia (as N)25 6.25 0.25 <0.05 <0.05
lttrate + Nttnte (as N)10 2.5 2 2.4 2.44
Heaw Metals (uo/L)
\rsenic 50 12.5 <5.0 <5.0 <5.0
lervllium 4 1 <0.50 <0.50 <0.50
)admium 5 1.25 <0.50 <0.50 <0.50
lhromium 100 25 <25 <25 <25
)obalt 730 182.5 <10 <10 <10
loooer 1.300 325 <10 <10 <10
ron 11.000 2.750 <30 <30 <30
-ead 15 3.75 < l.0 <1 .0 <'l "0
Vlanoanese 800 200 13 <10 <10
Vlercurv 2 0.5 <o.50 <0.50 <0.50
Vlolvbdenum 40 10 <10 <10 <10
{ickel 100 25 <20 <20 <20
ielenium 50 12.5 11.1 1't.9 10.8 '10.6 10.2
lilver 100 25 <'10 <10 <10
l-hallium 2 0.5 <0.50 0.s3 0.52 o.52 <0.50
lin 17,000 4,250 <1 00 <100 <'100
Jranium 30 7.5 9.37 7.76 7.53 7.32 6.76
/anadium 60 15 <15 <15 <15
Zinc s.000 1.250 <10 <10 <10
Radiolooics (oCi/L)
iross Aloha 15 3.75 1 (+l-.4\<1 .0 1.3 (+l 0.4)
VOC (ucr/L)
\cetone 700 175 <20 <20 <20
Jenzene 5 1.25 <1.0 <1 .0 <'1.0
IButanone (MEK)4,000 1,000 <20 <20 <20
larbon Tetrachloride 5 1.25 .0 .0 <l.0
lhloroform 70 17.5 .0 .0 <1 .0
]hloromethane 30 7.5 .0 .0 <1 .0
)ichloromethane 5 1.25 .0 .0 <1 .0
'laphthalene 100 25 .0 .0 <1 .0
etrahvdrofuran ( lHl-)46 11.5 <10 0 <2.0
[oluene 1,000 250 <1 .0 .0 <1 .0
(vlenes(total)10.ooo 2,500 o .0 <1.0
Others
:ield pH (S.U.)6.5 - 8.5 7.33 7.54 7.63
:luoride (mq/l)4 1 1'4 1.3 1.1 1.1 1.1
lhloride (mq/l)36 26 28
iulfate (mc/l)1,020 509 507
I-DS (mc/l)1,730 982 977
ieneral lnorqanics Listed in Part E.1.(cX2Xii)
larbonate (mq/l)<1 .0 <1 .0 <1 .0
licarbonate (mq/l)298 270 257
iodium (mq/l)410 121 113
rotassium (mq/l)6 5 4.32
,/aonesidm lmo/l)31 46.5 46.2
,=alcium (mo/l)101 140 140
[otal anions (meo/L)27.3 16 15.8
Total cations (meo/L)25.6 16.2 15.8
Contaminanl
GWQS GWCL
(Class ll)
MW-20 (Ouarterlv Monitorino)
lst qtr. 2008
Jan - March
2nd qtr.2008
April - June
61171200a
Parameters Listed in Table 2
Nutrients (mc/L)
\mmonia (as N)25 6.25 0.69
\itrate + Nitrite (as N)10 2.5 2.52
Heaw Metals (ucr/L)
qrsenic 50 12.5 <5.0
ervllium 4 1 <0.50
ladmium 5 1.25 <0.50
lhromium 100 25 <25
lobalt 730 182.s <10
lopper 1,300 325 <10
ron 11,000 2,750 <50
-ead 15 3.75 <1 .0
Manoanese 800 200 77
Vlercury 2 0.5 <0.50
Vlolvbdenum 40 10 <10
tlickel 100 25 <20
Selenium 50 12.5 <5.0
Silver 100 25 <10
fhallium 2 0.5 0.54
fin 17,000 4.250 <1 00
Jranium 30 7.5 34;6
y'anadium 60 15 <15
Zinc 5,000 1 25|J 41
Radioloqics (oCi/L)
3ross Alpha 15 3.75 I " .4.W11:11 .2.1 (+/- 0.5)
VOC (uo/L)
\cetone 700 175 <20
Jenzene 5 '1.25 <1 .0
2-Butanone (MEK)4.000 1.000 <20
larbon Tetrachloride 5 't.25 <1 .0
lhlorolorm 70 17.5 <1 .0
lhloromethane 30 7.5 <'l .0
)ichloromethane 5 1.25 <1.0
,,laphthalene 100 25 <1.0
[etrahvdrofuran (THF)46 11.5 <2.0
foluene 1 0()()250 <1.0
(vlenes(total)10.000 2.500 <1.0
Others:ield oH (S.U.)6.5 - 8.f 7.35
:luoride (mc/l)4 1 0.2
lhloride (mc/l)67
iulfate (mc/l)3.880
IDS (mo/l)5.570
ieneral lnoroanics Listed in Part E.1.(cX2Xii)
larbonate (mc/l)<1 .0
licarbonate (mo/l)384
iodium (mo/l)1.480
)otassium (mc/l)i1;1;:::::;;;;:1;;:;;l;1,:;,:;:;;;;1,1;61.9
vlaonesium (mc/l)108
lalcium (mc/l)395
lotal anions (meoil)89.1
fotal cations (meo/L)94.4
Concentrations shaded exceed the GWCL.
MW-20
ffirs {*twMW
Contaminant
GWQS GWCL
(Class lll,
MW-22 (Quarterlv Monitorino)
1 st qtr. 2008
Jan - March
2nd qtr. 2008
April - June
611712008
Parameters Listed in f ah/'e 2
Nutrients (mo/L)
Ammonia (as N)25 12.5 0.36
\itrate + Nitrite (as N)10 5 3.50
Heaw Metals (uo/L)
Arsenic 50 25 <5.0
3ervllium 4 2 2,27
Sadmium 5 2.5 Y2;7
lhromium 100 50 <25
ohell 730 365 266
)oDDer 1.300 650 14
lron 11,000 5,500 <50
-ead 15 7.5 <1.0
Manqanese 800 400 gl.1@
Mercury 2 1 <0.50
Volybdenum 40 20 188
\ickel 100 50 118
3elenium 50 25 13.2
Silver 100 50 <10
fhallium 2 1 1.15
Tin 17,000 8,500 <100
Jranium 30 15 52.4y'anadium 60 30 <15
Tinc 5,000 2.500 ;:::a:.:;;b 458
Fladinlnninc /nf:i/l I
Sross Aloha 15 7.5 '5.4 (+/- 0.8)
VOC (uq/L)
qcetone 700 350 <20
3enzene 5 2.5 <1.0
2-Butanone (MEK)4,000 2,000 <20
larbon Tetrachloride 5 2.5 <1 .0
lhloroform 70 35 <1 .0
lhloromethane 30 15 <1 .0
Jichloromethane 5 2.5 <1.0
tJaphthalene 100 50 <1 .0
Ietrahvdrofuran (THFI 46 23 <2.O
Ioluene 1_OOO 500 <1.0
(vlenes(total)10,000 5,000 <1 .0
Others
:ield pH (S.U.)6.5 - 8.s 6.2:luoride (mq/l)4 2 2:$
lhloride (mc/l)64
iulfate (mq/l)5.130
rDS (mq/l)7.1 10
Seneral lnorqanics Listed in Part E.1.(cX2'( ii)
larbonate (mqil)
- :::::::.:ai ::::] i';1?@
ffi
...::;;ti::+;iifiM
<1 .0
licarbonate (mq/l)436
iodium (mo/l)260rotassium (mc/l)26.2
Maonesium (mq/l)975
lalcium (mo/l)483
fotal anions (meqiL)'t 16
fotal cations (meo/L)116
MW-22
Concenlrations shaded exceed the GWCL.:i{rit!. . ,,,,,,,,,,,,, .....,,,.-..-,-i
MW-23
Contaminant
GWOS GWCL
TBA 1 st qtr. 2007
Jan - March
3114120r)7
2nd qtr. 2007
April - June
612012007
(")3rd qtr. 2oo7
July - Sept.
812712007
4th qtr. 2007
Oct. - Dec.
1012312007
(t)1 st qtr. 2oo8
Jan - March
2llAlrnnq
2nd qtr. 2008
April - June
6/9/2008
Parameters Listed in Table 2
Nutrients {mo/L)
qmmonta (as N),R 0.06 <0.05 <0.05 <0.05 <0.05 0.16
\tlrate + Nttrite (as Nl 10 0.6 0.3 0.3 0.3 0.3 0.2
Heaw Metals (uq/L)
qrsenic s0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0
3ervllium 4 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
ladmium 5 <0.60 <0.50 <0.50 <0.50 <0.50 <0.50
lhromium 100 <20 <20 <25 <25 <25 <25
lobalt 730 <10 <10 <10 <10 <10 <'10
looper 1.300 <10 <10 <10 <10 <10 <10
ron 11.000 <30 <30 <30 <30 <30 <30
-ead .15 <'1.0 <1.0 <1 .0 <1.0 <1.0 <1.0
Manqanese 800 281 274 472 337 372 289
Mercury 2 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
Molvbdenum 40 <10 <10 <10 <'lo <10 <10
ttickel 100 20 20 21 <20 29 29
ielenium 50 <5.0 5.2 5.2 <5.O <5.0 <5.0
iilver 100 <10 <10 <10 <10 <10 <10
fhallium 2 <0.50 0.98 1.48 1.24 1.27 1.06
l-in 17.000 <1 00 <1 00 <1 00 <'100 <1 00 <100
Jranium 30 22.1 21.1 20.7 19.6 21.2 18.6
/anadium 60 <20 <15 <15 <'15 <15 <15
Zinc 5.000 30 31 46 41 33 29
Radiolooics (oCi/L)
iross Alpha 15 <1 .0 1.3 (0.4+/-)"2.1 (o.7+l-\1.3 (0.5+/-)2.6 (0.5+/-)1.9 (+l 0.5)
VOC (ucr/L)
\cetone 700 <20 <20 <20 <20 <20 <20
lenzene 5 <l.0 <1.0 <1 .0 <1 .O <1 .0 <1.0
l-Butanone (MEK)4,000 <20 <20 <20 <20 <20 <24
)arbon Tetrachloride 5 <1 .0 .0 <1 .0 <1 .0 <1.0 <1 .0
)hloroform 70 <'l .0 .0 <1 .0 <1 .0 <1 .0 <1 .0
lhloromethane 30 <1.0 .0 <1.0 <1 .0 <1 .0 <1.0
)ichloromethane 5 <1 .0 .0 <1.0 <'l .0 <1-0 <1.0
{aphthalene 100 <'l .0 <1.0 <1 .0 <1.0 <1.0 <1 .0
tetrahvdrofuran (THF)46 <10 <10 <10 <10 <2.O <2.O
toluene 1.000 <1 .0 <1 .0 <1 .0 <1 .0 <l.0 <1 .0(vlenes(total)10.000 <1 .0 <1 .0 <1 .0 <l.o <1 .O <1.0
Others;ield DH (S.U.)6.5 - 8.5 7.23 6.97 7.',!1 6.94 7.49 7.05:luoride (mq/l)4 o.4 0.3 0.3 0.2 0.2 o.2
lhloride (mo/l)o 6 I 7 7 6
iulfate (mq/l)2.340 2.320 2,460 2,310 2.410 2.180
l-DS (mo/l)3.640 3.630 3.670 3,520 3,550 3.540
Seneral Inorganics Listed in Part E.1.(cX 2Xii)
larbonate (mc/l)<1 .0 <1 .0 <1.0 <1 .0 <'l .0 <1 .0
licarbonate (mcr/l)298 281 250 162 275 306
iodium (mo/l)377 378 345 343 384 400rotassium (mq/l)11.2 11.9 10.6 11.1 10.9 10.4
vlaqnesium (mo/l)154 164 161 164 146 't 59
lalcium (mq/l)454 47s 472 475 444 494
fotal anions (meq/L)53.8 53.2 55.5 51.1 55
[otal calions Imeo/l )52 54 52 52.4 51.2
The gross alpha counting variance exceeded 207".
MW-24
Contaminant
GWOS UWUL
TBA 1st qtr. 2007
Jan - March
311612007
2ndqlr.2007
April - June
612012007
(")3rd qtr. 2oo7
July - Sept.
812812007
4th qtr. 2007
Oct. - Dec.
1012312007
(")1 st qtr. 2oo8
Jan - March
311212008
2nd qtr. 2008
April - June
5lro't2n,o,R
Parameters Listed in Table 2
Nulrients (mc/L)
\mmonia (as N)25 2.72 1.78 1.28 0.86 5.58 0.32
tlitrate + Nitrite (as N)10 <0.1 <0.1 <0.1 <0.1 <0.1 0.12
Heaw Metals (uo/L)
\rsenic 50 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0
leryllium 4 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
)admium 5 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
)hromium 100 <25 <25 <25 <25 <25 <25
)obalt 730 <10 <10 <10 <10 <10 <10
)oooer 1.300 <10 <10 <10 <10 <10 <10
ron 11.000 't 01 2,110 2,140 2.320 3.580 2.740
-ead '15 <1 .0 <1 .0 <1 .0 <1 .0 <1 .0 <'l .0
Vlanoanese 800 2_s40 2,tfro 1,670 2.770 1',664 2-330
Vlercury 2 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
vlolvbdenum 40 <10 <10 <10 <10 <10 <'10
{ickel 100 <20 <20 <20 <20 <20 <20
Selenium 50 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0
Silver 100 <10 <10 <10 <10 <10 <10
Ihallium 2 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
Iin 17.000 <1 00 <1 00 <100 <100 <1 00 <1 00
Jranium 30 2.13 1.46 2.11 1.78 0.84 o.77y'anadium 60 <15 <15 <15 <15 <15 <15
7-inc 5.000 <,,10 <10 11 <10 <10 17
Radiolooics (DCi/L)
Sross AlDha 15 <1.0 <1 .0 -1 .2 (0.6+/-)<1.0 -0.2 (0.3+/-).0.9 (+/- 0.3)
VOC (ucr/L)
qcetone 700 <20 <20 <20 <20 <20 <20
3enzene 5 <1.0 <1.0 <l.0 <1 .0 <1.0 <1.0
2-Butanone (MEK)4.000 <20 <20 <20 <20 <20 <20
larbon Tetrachloride 5 <1 .0 <1 .0 <l.0 <1 .0 <1.0 .0
lhloroform 70 <1 .0 <1 .0 <1 .0 <1 ,0 <'1 .0 0
lhloromethane 30 <1 .0 <1 .0 <1.0 <1.0 <'l .0 0
)ichloromethane 5 <1 .0 <1 .0 <1.0 <1.0 <1 .0 .0
t,laohthalene 100 <1.0 <1 .0 <1.0 <'1 .0 <1 .0 .0
[eirahydrofuran (THF)46 <10 <10 <10 <10 <2.0 <2.0
Ioluene 1,000 <1.0 <1.0 <1 .0 <'l .0 <1.0 <1 .0(vlenes(lotal)10.000 <1 .O <1.0 <1 .0 <1 .0 <1.0 .o
Others:ield oH (S.U.)6.5 - 8.5 7.'t6 6.90 6.91 6.97 6.91 7 4:luoride (mq/l)4 0.2 o.2 0.2 0.1 o.2 0.1
lhloride (mq/l)45 44 45 45 44 45
iulfate (mq/l)2.520 2.680 2.720 2,620 2,560 2.770
IDS (mq/l)4.140 4.160 4.280 4.180 4,090 4 030
ieneral lnorqanics Listed in Part E.1.(cX2Xii)
larbonate (mq/l)<1 .0 <1 .0 <1 .0 <1 .0 <1.0 <1.0
licarbonate (mo/l)387 295 31 1 300 520 188
iodium (mo/l)425 454 427 495 469 502)otassium (mq/l)13.6 14.8 12.6 14.5 12.9 12.7
vlaonesium (mo/l)178 181 147 183 167 186
lalcium (mo/l)478 496 504 509 462 500
fotal anions (meq/L)60.2 61 .9 62.9 60.7 63.1 OZ
[otal cations (meq/L)57.8 60.1 59.7 62.7 58.2 62.4
Concentrations shaded excsed the GWCLt The gross alpha counling variance exceeded 207o
MW.25
Contaminant
GWOS GWCL
TBA 1 st qtr. 2007
Jan - March
a/lal2o/n7
2nd qtr. 2007
April - June
Al2nlrinT
(")3rd qtr. 2oo7
July - Sept.
a12712007
4th qtr. 2007
Oct. - Dec.
1012512007
1st qtr. 2008
Jan - March
311812008
2nd qtr. 2008
April - June
6112t2008
Parameters Listed in Table 2
Nutrients (mo/L)
\mmonia (as N)25 0.5 0.49 0.55 0.54 0.49 0.67
\,litrate + Nitrite (as N)10 <0.1 <0.1 <0.1 <0.1 <1 .0 <0.1
Heaw Metals (uc/L)
\rsenic 50 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0
Servllium 4 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
ladmium 5 1.44 1.39 1.44 1.37 1.23 1 .19
lhromium 't 00 <25 <25 <25 <25 <25 <25
lobalt 730 10 10 12 10 't0 10
;oPPer 't.300 <10 <10 <10 <10 <10 <10
ron 11,000 <30 <30 <30 <30 <30 <30
-ead 15 <1 .0 <1 .0 <1 .0 <1 .0 <1 .0 <1.0
Vlanqanese 800 1,75[1.610 1,7tto t.6va 7,61{J t.670
Vlercury 2 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
Vlolybdenum 40 10 10 11 11 11 11
tlickel 100 <20 <20 <20 <20 <20 <20
ielenium 50 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0
iilver 100 <10 <10 <10 <10 <10 <10
Ihallium 2 1.05 1.03 1.04 0.98 0.9s 0.93
lin 17,000 <1 00 <1 00 <1 00 <1 00 <1 00 <'100
Jranium 30 6.01 5.86 6.27 6.02 5.94 6.08
y'anadium 60 <15 <'15 <15 <15 <15 52
7-inc 5,000 <10 <10 <10 11 <10 <10
Radioloqics (pCi/L)
Sross Alpha 15 <1.0 1.0 (0.4+/-)1.2 (0.6+/-)<1 .0 1.9 (0.4+l)*1 .4(+/- 0.5)
VOC (uc/L)
\cetone 700 <20 <20 <20 <20 <20 <20
Jenzene 5 <1.0 <1 .0 <1 .0 <1 .0 <1.0 <1 .0
2-Butanone (MEK)4.000 <20 <20 <20 <20 <20 <20
larbon Tetrachloride 5 <1 .0 <1.0 <1 .0 <1.0 <1 .0 <1.0
lhloroform 70 <1 .0 <1.0 <1 .0 <1.0 <1 .0 <1 .0
lhloromethane 30 <1 .0 <.1.0 <1.0 <1.0 <1 .0 <1.0
)ichloromethane 5 <1 .0 <1.0 <1.0 <1.0 <'l .0 <1 .0
tlaphthalene 100 <1 .0 <1.0 <1.0 <1 .0 <1 .0 <1 .0
tetrahvdrofuran (THF)46 <10 <10 <10 <'10 <2.O <2.0
foluene 1.000 <1 .0 <1 .0 <1.0 <1 .0 <1.0 <t.o
(vlenes(total)10.000 <1 .0 <1 .0 <1 .0 <1 .0 <1.0 <1.O
Others:ield oH (S.U.)6.5 - 8.5 7.22 7.O5 6.8s 7.30 7.69 7.30:luoride (mc/l)4 o.4 o.4 0.4 0.3 0.3 0.3
lhloride (mc/l)32 31 33 32 32 25
iulfate (mo/l)1.750 1.740 1.850 1.710 1,750 1 ,610
IDS (mc/l)2.970 2.900 2.810 2.750 2.710 2,770
ieneral lnoroanics Listed in Part E.1.(cX 2Xii)
larbonate (mc/l)<1.0 <1 .0 <1.0 <l.0 <'l .0 <1.0
licarbonate (mc/l)390 403 412 410 4't5 381
iodium (mc/l)289 269 274 272 306 306rotassium (mo/l)10.1 9.9 9.52 10_1 9.8 9.48
vlaonesium (mc/l)135 140 136 115 120 130
lalcium (mc/l)386 39s 390 392 3s3 383
fotal anions (mec/L)43.7 43.7 46.1 43.3 44.1 40.4
fotal cations (meo/L)43.3 43.4 42.9 4't.3 41.2 43.4
Concenlrations shaded exceed the GWCL
MW-26
Contaminant
GWQS GWCL
(Class lll)January
(")Monthly Accl.
1l2ql2o,o,R
February(')Monthly Accl.
2l2nl200R
1st qtr. 2008
Jan - March
al1rl2o,o,A
April
(")Monthly Accl.
al2ql2qnA
May
(")Monthly Accl.
5114t2008
2nd qtr. 2008
April - Juneql2Tlri A
Parameters Listed in Table 2
Nutrients (mo/L)
Ammonia (as N)25 12.s 0.16 0.22
\itrate + Nitrite (as N)10 5 2.7 0.34
Heaw Metals (ucr/L)
Arsenic 50 25 <5.0 <5.0
3ervllium 4 2 <0.50 <0.50
iadmirrm 5 2.5 <0.50 <0.50
lhromium 100 50 <25 <25
lobalt 730 365 <10 <10
lopper 1,300 650 <10 <10
lron 11,000 5,500 668 1 .100
-ead 15 7.5 <1.0 <'1.0
Manqanese 800 400 853 1,330 1,390 1,010 t,170 1,130
Mercurv 2 1 <0.50 <0.50
ulolvbdenum 40 20 <10 <10
\ickel 100 50 <20 <20
ialaniilm 50 25 <5.0 <5.0
lilver 100 50 <10 <10
thallium 2 1 <0.50 <0.50
l-in 17.000 8.500 <1 00 < 100
Jranium 30 15 20-1 59-2 46.3 17.2 20.7 21.7
/anadium 60 30 <15 <15
Iinc 5,000 2,500 <10 <10
Radioloqics (pCi/L)
iross Alpha 15 7.5 2.3 (0.6+/-)"2.9 (0.6+l)
VOC (uc/L)
\celone 700 350 <20 <20 <20 <20 <20 <20
Jenzene 5 2.5 <1.0 <1 .0 <1 .0 <1 .0 <1.0 <1 .0
l-Butanone (MEK)4,000 2,000 <20 <20 <20 <20 <20 <20
larbon Tetrachloride 5 2.5 <1.0 <1 .0 <1.0 <1 .0 <1.0 <1 .0
lhloroform 70 35 uro 584 13AO 1,6Ut 1,2@ 2,iln
lhloromethane 30 15 <1.0 <1 .0 <1.0 <1.0 <1 .0 <1.0
)ichloromethane 5 2.5 15 15 66 47 33 110
rlaohlhalene 100 50 <1.0 <1 .0 <1.0 <1.0 <1 .0 <'1.0
letrahydrofuran (THF)46 23 NOV NOV <2.0 <2.0 <2.O <2.0
[oluene 1,000 500 <1 .0 <1 .0 <'1.0 <1 .0 <1 .0 <1.0
(vlenes(total)10,000 5.OOO <1-O <l.o <'l _o <1 .O <1 .0 <1_O
Olhers
:ield pH (S.U.)6.5 - 8.5 6.99 7.18
:luoride (mc/l)4 2 0.3 0.2
lhloride (moil)69 56
iulfate (mo/l)r.850 2.0't0
I-DS (mc/l)3.110 1.630
ieneral lnorqanics Listed in Part .E.1.(cX2)
larbonate (mq/l)<1.0 <1 .0
licarbonate (mq/l)390 380
iodium (mq/l)194 228rotassium (mq/l)11.1 10.4
vlaonesium (mo/l)154 166
lalcium (mc/l)492 48B
total anions (mec/L)47 49.6
total cations (meo/L)46.1 48.2
Concentrations in bold exceed the GWOS
Concenirations shaded exceed ihe GWCL
(a) = Monthly accelerated monitoring event. The gross alpha counting variance exceeded 20%
MW-27
Concentrations shaded exceed the GWCL. The gross alpha counting variance exceeded 20%.
Noi Sampled during 2nd Quarter (June) 2007. This well was sampled in July 2007 as part of a tlydrogeologic study performed by ihe University
ot Utah. This study required undisturbed waier in this well for at least 2 months prior to sampling.
Contaminant
GWOS GWUL
TBA 1 st qtr. 2007
Jan - March
311412007
Zndqlr.2007
April - June
(")3rd qtr. 2oo7
July - Sept.
812812007
4th qtr. 2007
Oct. - Dec.
1012212007
1 st qtr. 2008
Jan - March
3l't712008
2nd qtr. 2008
April - June
61212008
Parameters Listed in Table 2
Nr rtrianle /mn/l \
\mmonia (as N)25 <0.05 <0.05 <0.05 <0.05 <0.05
tlitrate + Nitrite (as N)'10 5 5.2 5.2 5.4 6.26
Heaw Metals (uqil)
\rsenic 50 <5.0 <5.0 <5.0 <5.0 <5.0
Seryllium 4 <0.50 <0.50 <0.50 <0.50 <0.50
ladmium 5 <0.50 <0.50 <0.50 <0.50 <0.50
lhromium 100 <25 <25 <25 <25 <25
lobalt 730 <10 <10 <10 <10 <10
lopper 1.300 <10 <10 <10 <10 <10
ron 11.000 <30 <30 <30 264 <30
-ead 15 <1 .0 <1.0 <1 .0 <1.0 <1.0
Vlanoanese 800 <10 <10 <10 <10 <10
Vlercurv 2 <0.50 <0.50 <0.50 <0.50 <0.50
vlolvbdenum 40 <10 <10 <10 <10 <10
tlickel 100 <20 <20 <20 <20 <20
ielenium 50 10.9 10.1 10.6 8.5 10.1
3ilver 100 <10 <10 <10 <10 <'10
fhallium 2 <0.50 <0.50 <0.50 <0.50 <0.50
l-in '17,000 <100 <'100 <1 00 <1 00 <1 00
Jranium 30 29.s s2 32.2 30.2 31.2
/anadium 60 <15 <15 <15 <15 <15
Zinc 5,000 <10 <10 <10 <10 <10
Radiolooics (oCi/L)
Sross Alpha 15 <1 .0 1.4 (0.6+/-)-1 .0 (0.5+/-).2.0 @.4+l-\-1 .9 (0.5+/-)
VOC (uq/L)
\cetone 700 <20 <20 <20 <20 <20
Jenzene 5 <1 .0 <1 .0 <1 .0 <1 .0 <1 .0
2-Butanone (MEK)4 000 <20 <20 <20 <20 <20
larbon Tetrachloride 5 <1 .0 0 <1 .0 <1.0 <1 .0
lhloroform 70 <1.0 0 <1 .0 <1.0 <1 .0
lhloromelhane 30 <1.0 .0 <1 .0 <'1.0 <1 .0
)ichloromethane 5 <'1.0 0 <1 .0 <1.0 <1 .0
,,laphthalene 100 <1.0 .0 <1 .0 <l.0 <l.0
[etrahydrofuran (THF)46 <10 <10 <10 <2.O <2.0
[oluene 1,000 <1.0 <1.0 <1 .0 <.1 .0 <1.0
(vlenes(total)10.000 <1 .O <1 _O <1-O <l.o <1.0
Others
:ield pH (S.U.)6.5 - 8.5 7.64 7.50 7.44 8.10 7.55
:luoride (mo/l),4 0.8 0.8 0.7 0.8 0.8
lhloride (mq/l)Jt)35 37 37 39
iulfate (mc/l)420 452 406 428 453
I-DS (mc/l)1.050 1,040 1 .010 1,050 1,030
ieneral lnorqanics Listed in Part .E 1.(cX2)(ii)
larbonate (mq/l)<1 .0 <1 .0 <'1 .0 <1 .0 <1 .0
Sicarbonate (mq/l)429 450 448 456 424
iodium (mc/l)78.9 74.5 74.'.|71 75.5
)otassium (mq/l)4.5 4.36 4.3 4.6 4.36
vlaonesium (mq/l)73.3 76 73.2 66.7 77.3
lalcium (mq/l)188 176 170 156 177
total anions (meq/L)17.2 18.2 17.2 17.9 18
total cations (meoil)18 18.4 17.8 16.5 18.6
MW-28
Contaminant
GWQS GWCL
TBA 1 st qtr. 2007
Jan - March
l,l1qlroo7
2nd qtr.2007
April - June
Rl20l2io7
(")3rd qtr. 2oo7
July - Sept.
A12P-12o,n-7
4th qtr. 2007
Oct. - Dec.
lnl2al2no7
'lst qtr. 2008
Jan - March
3t1212008
2nd qtr. 2008
April - June
6/3/2008
Parameters Listed in Table 2
Nutrients (mo/L)
\mmonia (as N)25 0.11 0.09 <0.05 <0.05 <0.05 <0.05
tlitrate + Nitrite (as N)'t0 0.2 0.2 o.2 o.2 0.1 0.18
Heaw Metals (ucr/L)
\rsenic 50 12.1 15 18.6 17.9 15.4 15.1
lervllium 4 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
)admium 5 1.84 3.27 3.34 3.36 3.4 3.22
lhr6miilm 100 <25 <25 <25 <25 <25 <25
lobalt 730 28 32 29 31 29 22
lopper 1.300 <10 <10 <10 <10 <10 <10
ron 11.O00 277 206 43 43 46 46
-ead l5 <1 .0 <1 .0 <1.0 <1.0 <1 .0 <1.0
Vlanganese 800 1.590 1-450 1.520,,1-/tat,.1-5/16 ,.s60
Vlercury 2 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
vlolybdenum 40 <'10 <'10 <10 <10 <10 <10
{ickel 100 32 30 26 29 23 26
ielenium 50 <5.0 5.5 5.3 5 <5.0 <5.0
iilver 100 <10 <10 <10 <10 <10 <10
lhallium 2 0.85 0.74 0.88 0.9 0.84 o.82
lin 17.000 <1 00 <1 00 <1 00 <100 <1 00 < ,l00
Jranium 30 2.69 4.56 3.67 3.4 3.'17 3.46
/anadium 60 <15 <15 <15 <15 <15 <15
Zinc s.000 32 37 80 48 34 38
Radiolooics (oCi/L)
iross Aloha 15 -1 .5 (0.5+l "1.2 (O.4+l-\1.5 (0.6+/-)1.2 (0.5+l)1.2 (0.5+/-)1.3 (0.4+/-)
VOC {uo/L)
\cetone 700 <20 <20 <20 <20 <20 <20
Jenzene 5 <1 .0 <1 .0 <'l .0 <1 .0 <1 .0 <'l .0
2-Butanone (MEK)4.000 <20 <20 <20 <20 <20 <20
larbon Tetrachloride 5 .0 <1 .0 <1 .0 <1 .0 <1 .0 .0
lhlorotorm 70 0 <1 .0 <1 .0 <1 .0 <1 .0 0
lhloromethane 30 0 <1 .0 <1 .0 <1 .0 <1 .0 0
)ichloromethane 5 0 <1 .0 <1 .0 <l.0 <1 .0 0
tlaohthalene 100 0 <1 .0 <1 .0 <1 .0 <1.0 0
fetrahvdrofuran (THF)46 <10 <10 <10 <10 <2.0 <2.0
[oluene 'I .000 <1 .0 <1 .0 <1 .0 <1 .0 <1 .0 <1 .0
(vlenes(total)10.000 <1 .0 <1 .0 <1 .0 <1 .0 <1 .0 <1 .0
Others
:ield oH (S.U,)6.5 - 8.5 6.65 6.64 .,e 97 a.4u .6.88 E Zt.
:luoride (mc/l)4 0.6 0.6 0.7 0.6 0.6 0.6
lhloride (mo/l)97 94 95 99 99 103
iulfaie (mc/l)2.340 2.360 2.440 2.370 2.310 2.360
fDS (mcr/l)3.800 3.770 3.700 3.600 3.640 3.580
feneral lnoroanics Listed in Part E.'1.(c)(2Xii)
larbonate (mc/l)<1 .0 <1.0 <1 .0 <1 .0 <1 .0 <1 .0
licarbonate (mq/l)139 't51 161 162 159 149
3odium (mcr/l)332 251 266 282 292 303
rotassium (mqil)'14.3 12.4 11.1 1',t.4 11.4 11.1
Maqnesium (mg/l)192 188 180 184 160 167
lalcium (mo/l)5'19 521 s30 s38 490 5'14
[otal anions (meq/L)53.9 54.3 56.1 54.8 53.5 54.5
f^tal ^ali^nc /men/l \56.7 54.6 53.2 54.6 50.8 52.9
Concentraiions shaded exceed the GWCL. The gross alpha counting variance exceeded 20%.
MW-29
Concentrations shadod exceed the GWCLt The gross alpha counting variance exceeded 20%.
Not Sampled during 2nd Quarter (June) 2007. This well was sampled in July 2OO7 as part of a hydrogeologic strdy perfornEd by the Universiiy
of Uiah. This study reguired undisturbed water in this well tor al leasl 2 monlhs prior to sampling.
Contaminant
GWOS GWCL
TBA 1 st qtr. 2007
Jan - March
2l't6.l2n,n7
2ndqlr.2007
April - June
(")3rd qtr. 2oo7
July - Sept.
812212007
4th qtr. 2007
Oct. - Dec.
1012412007
1 st qtr. 2008
Jan - March
3/1 9/2008
2nd qtr. 2008
April - June
61312008
Parameters Listed in Table 2
Nutrients (mc/L)
A.mm^nia las N)25 0.84 0.83 0.79 0.8 0.53
rlitrate + Nitrite (as N)10 <0.1 <0.1 <0.1 <o.1 <o.05
Heaw Metals (uc/L)
qrsenic 50 <5.0 <5.0 <5.0 <5.0 <5.0
Seryllium 4 <0.50 <0.50 <0.50 <0.50 <0.50
ladmium 5 <0.50 <0.50 <0.50 <0.50 <0.50
lhromium 100 <25 <25 <25 <25 <25
lobalt 730 <10 <10 <10 <10 <10
lopper 1,300 <10 <10 <10 <10 <10
ron 11,000 1.500 1.200 1.110 1 3aO 1,400
-ead 15 <-1.0 <1 .0 <1.0 <1 .0 <1 .0
Manoanese 800 5,@A 4.790 4.9ij0 4;830 5.260
Vlercury 2 <0.50 <0.50 <0.50 <0.50 <0.50
Volvbdenum 40 <10 <10 <10 <10 <10
Nickel 100 <20 <20 <20 <20 <20
Selenium 50 <5.0 <5.0 <5.0 <5.0 <5.0
Silver 100 <10 <10 <10 <10 <10
lhallium 2 <o.50 <o.50 <0.50 <0.50 <0.50
l-in 17,000 <'100 <1 00 <100 <1 00 <t00
Jranium 30 11.2 11.9 11.1 11.1 10.3
/anadium 60 <15 <15 <15 <15 <15
Iinc 5.000 13 13 15 21 22
Radiolooics (oCi/L)
iross Alpha 15 1 (0.5+/-)1.1 (0.5+/-)<1.0 -2.1 (0.5+/-)1 1 (0.4+/-)
VOC (uc/L)
\cetone 700 <20 <20 <20 <20 <20
Jenzene 5 <1 .0 <1 .0 <1_0 <1 .0 <1 .0
2-Butanone (MEK)4.000 <20 <20 <20 <20 <20
)arbon Tetrachloride q <1 .0 <1 .O <1_0 <1 .0 <1 .0
lhloroform 70 <1 .0 <1.0 <1.0 <'l .0 <'l .0
,-hloromethane 30 <1 .0 <'1.0 <1.0 <1 .0 <1 .0
)ichloromethane 5 <1.0 <'l _0 <1 .0 <1 .0 <1 .0
{aphthalene 100 <1 .0 <'l .0 <1 .0 <l.0 <1 .0
etrahvdroluran (THF)46 <10 <10 <10 <2.O <2.O
foluene 1.000 <1.0 <1 .0 <1 .0 <1 .0 <1 .0
(vlenes(total)10.000 <1_O <'l -o <1 .0 <1 .0 <1 .0
Others;ield oH (S.U.)6.5 - 8.5 6.63 7.03 6.87 7 _46 6.98
:luoride (mc/l)4 0.9 1 0.8 0.8 0.8
lhloride (mo/l)39 37 37 39 38
lulfate (mc/l)2.780 2.790 2,790 2,840 2,840
fDS (mo/l)4.520 4,400 4 370 4,430 4.190
Seneral lnoroanics Listed in Part E.1.(c)2)(ii)
larbonate (mo/l)<'1.0 <1.0 <'1.0 <'l .o <1 .0
licarbonate (mc/l)323 340 338 345 321
Sodium (mc/l)433 440 425 466 486
)otassium (mo/l)'t7.3 16.4 17.3 17.2 16.8
Maonesium (mcr/l)236 234 240 206 218
)alcium (mq/l)505 493 510 461 470
[otal anions (meq/L)64.4 64.7 64.6 65.9 65.5
[nlal nalinnq Imen/l \64.4 63.8 64.5 61 .1 bJ
MW-30
Concentralions shaded exceed the GWCL. The gross alpha counting variance exceeded 207".
Not Sampled during 2nd Ouarter (Jun€) 2007. This well was samplad in July 2OO7 as part of a hydrogeologic study porformed by the University
ot Utah. This study required undislurbed water in this well ,or al least 2 monlhs prior to sampling.
Conlaminant
GWOS GWCL
TBA 1 st qtr. 2007
Jan - March
311512007
2nd qtr. 2007
April - June
(')3rd qtr. 2oo7
July - Sept.
812212007
4th qtr. 2007
Oct. - Dec.
1012412007
1st qtr. 2008
Jan - March
311912008
2nd qtr. 2008
April - June
61312008
Parameters Listed in Table 2
Nutrients (mc/L)
\mmonia (as N)25 <0.05 0.08 <0.05 <0.05 <0.05
tlitrate + Nitrile (as N)10 14.4 14:6 14.9 14-8 ,8-7
Heaw Metals (uo/L)
\rsenic 50 <5.0 <5.0 <5.0 <5.0 <5.0
lervllium 4 <0.50 <0.50 <0.50 <0.50 <0.50
ladmium 5 <0.50 <0.50 <0.50 <0.50 <0.50
lhromium 100 <25 <25 <25 <25 <25
lobalt 730 <10 <'10 <10 <10 <10
lopper 'I .300 <10 <'10 <10 <10 <10
ron 11.000 58 127 125 141 135
-ead 15 <1 .0 <1 .0 <l.0 <1.0 <1 .0
Manqanese 800 21 46 54 45 49
Mercury 2 <0.50 <0.50 <0.50 <0.50 <0.50
Molybdenum 40 <'10 <10 <10 <10 <10
\,lickel 100 <20 <20 <20 <20 <20
Selenium 50 31 .2 30.4 29.8 30.5 30,5
Silver 100 <10 <10 <10 <10 <10
Ihallium 2 <0.50 <0.50 <0.50 <0.50 <0.50
Iin 17.000 <100 <1 00 <1 00 <1 00 <1 00
Jranium 30 6.99 7.09 6.88 6.79 6.86
y'anadium 60 <15 <15 <15 <15 <15
linc 5.000 <10 <10 <10 <10 <10
Radiolooics (oCi/L)
iross Aloha 15 <1.0 <1 .0 <l.0 1.0 (0.3+/-).0.8 (0.3+l)
VOC (uc/L)
\cetone 700 <20 <20 <20 <20 <20
lenzene 5 <1.0 <1 .0 <1 .0 <1 .0 <1.0
2-Butanone (MEK)4.000 <20 <20 <20 <20 <20
larbon Tetrachloride 5 <1.0 <1 .0 <1 .0 <1 .0 <1 .0
lhloroform 70 <1.0 <1 .0 <1 .0 <1"0 <1 .0
)hloromethane 30 <1 .0 <1 .0 <1 .0 <1 .0 <1 .0
)ichloromethane 5 <1 .0 <1 .0 <1 .0 <1 .0 <1.0
{aphthalene 100 <1 .0 <1 .0 <1 .0 <1.0 <1 .0
letrahvdrofuran (THF)46 <10 <10 <10 <2.0 <2.O
foluene 1.000 <1 .0 <1 .0 <1 .0 <1 .0 <1 .0
(vlenes(total)10.o00 <1 .0 <1 .0 <1 .0 <1 .O <.1.0
Others
:ield pH (S.U.)i.5 - a.l 6.85 7.16 7.43 7.90 7.51
:luoride (mq/l)4 0.4 0.4 0.3 0.4 0.4
)hloride (mq/l)125 126 122 118 12s
iulfate (mo/l)838 852 871 853 842
IDS (mc/l)1.690 1.700 1.660 1 ,610 1.500
General lnoroanics Listed in Part 1.E.1.(c)(2)(ii)
larbonate (ms/l)<1.0 <1.0 <l.0 <1 .0 <1.0
licarbonate (mq/l)190 193 197 197 r80
iodium (mc/l)102 108 110 108 109
)otassium (mq/l)8.2 7.3 8.1 7.8 7.29
Vlaonesium (mc/l)73.7 72.3 72.9 68.9 71.3
lalcium (mq/l)288 286 294 270 274
folal anions (meq/L)25.1 25.5 2s.9 25.4 25.4
fotal cations (meq/L)2s.1 25.1 25.7 24.1 24.7
MW-31
Concentralions shaded exceed lhe GWCL- The gross alpha counling variance exceeded 20%.
Not Samplod during znd Ouarler (Jurle) 2007. This well was sampled in July 2007 as part of a hydrogeologic study pertormed by lhe Univorsity
of Utah. This siudy rcquired urdislurbed water in lhis well tor al least 2 months prior to sampllng.
Contaminant
GWQS GWCL
TBA 1st qtr. 2007
Jan - March
311512007
zndqtr.2007
April - June
(")3rd qtr. 2oo7
July - Sept.
a12712007
4th qtr. 2007
Oct. - Dec.
1012412007
1 st qtr. 2008
Jan - March
1/1 q/2nnA
2nd qtr.2008
April - June
6/3/2008
Parameters Listed in Table
Nutrients (mc/L)
\mmonia (as N)25 <0.05 <0.05 <0.05 <0.05 <0.05
{itrate + Nitrite (as N)10 22 23.3 .24.6 25 29.3
Heaw Metals (ucr/L)
\rsenic 50 <5.0 <5.0 <5.0 <5.0 <5.0
leryllium 4 <0.50 <0.50 <0.50 <0.50 <0.50
ladmium 5 <0.50 <0.50 <0.50 <0.50 <0.50
)hromium 100 <25 <25 <25 <25 <25
lobalt 730 <10 <'10 <10 <10 <10
lopper 1,300 <10 <10 <10 <'10 <10
ron 11,000 <30 <30 <30 <30 <30
-ead 15 <1 .0 <1 .0 <1.0 <1 .0 <1.0
Vlanqanese 800 <10 <10 <10 <10 <10
Vlercury 2 <0.50 <0.50 <0.50 <0.50 <0.50
vlolybdenum 40 <10 <10 <10 <10 <10
{ickel r00 <20 <20 <20 <20 <20
ielenium 50 59.2 60.8 56.6 54.4 55,3
iilver 100 <10 <10 <10 <'10 <10
l-hallium 2 <0.50 <0.50 <0.50 <0.50 <0.50
l-in 17,000 <1 00 < 100 <1 00 <1 00 <100
Jranium 30 7.60 7.18 7.2 7.O2 6.95
/anadium 60 <'15 <'15 <15 <15 <15
linc 5,000 <10 <10 10 <10 <10
Radioloqics (pCiil)
iross Alpha 15 <1 .O .1.4 (0.6+/-)<1 .0 1.7 (O.4+l-\1.3 (0.4+/-)
VOC (uc/L)
\cetone 700 <20 <20 <20 <20 <20
Jenzene 5 <1 .0 <1 .0 <1 .0 <1 .0 <1 .0
2-Butanone (MEK)4,000 <20 <20 <20 <20 <20
larbon Tetrachloride 5 <1 .0 .0 <1 .0 <1 .0 <1.0
lhloroform 70 <1 .0 .0 <1.0 <1.0 <'1.0
)hloromethane 30 <l.0 .0 <1 .0 <1-0 <1 .0
)ichloromethane 5 <1 .0 .0 <1 .0 <1.0 <1 .0
{aphthalene 100 <1 .0 .0 <1 .0 <1.O <1 .0
letrahvdrofuran (THF)46 <'10 0 <10 <2.O <2.0
foluene 1,000 <1 .0 <1-0 <1 .O <1_O <l.0
(vlenes(total)10.o00 <1 .0 <1 .O <1 .0 <'l.o <1 .0
Others
:ield pH (S.U.)6.5 - 8.5 6.79 7_29 7.62 7.98 7.65
:luoride (mo/l)4 0.9 1 0.8 0.9 0.9
lhloride (mo/l)132 136 122 124 128
iulfate (mq/l)516 s32 497 521 514
I-DS (mq/l)1.24O 1.240 1 _150 1.220 1.180
ieneral lnorqanics Listed in Part E.1.(cX2)(ii)
larbonate (mq/l)<1 .0 <1.0 <1 .0 <1 .0 <1 .0
licarbonate (mq/l)210 210 209 212 197
lodium (mq/l)94.6 93.1 93.3 91 93.7
)otassium (mq/l)b.b 6.23 6.4 6.2 5.96
Vlaqnesium (mq/l)86.1 B5.B 83.8 78.2 80.8
lalcium (mq/l)17'l 178 172 161 163
I-otal anions (meo/L)19.5 20.1 19 19.7 19.7
fotal cations (meo/L)19.9 20.1 19.7 18.6 19
MW-32
Contaminant
GWQS UWUL
(Class lll)January
(")Monthly Accl.
112912008
February
(")Monlhly Accl
21201200a
1 st qtr. 2008
Jan - March
?l1rlroo9,
.April
(")Monthly Accl.
atralro A
May
(")Monthly Accl.
E.11il2n,o,q
2nd qtr. 200t
Jan - March
alql2nnR
Parameters Listed in Table 2
Nutrients lmo/L)
\mmonia (as N)25 12.5 0.62 0.5
litrate + Nitrite (as N)10 5 <0.1 <0.05
Heaw Metals (ucr/L)
\rsenic 50 25 <5.0 <5.0
leryllium 4 2 <0.50 <0.50
ladmirrm 5 2.5 1.32 <0.50 1.9 3 2.08 2.21
lhromium 100 50 <25 <25
lobalt 730 365 51 42
lopper 1,300 650 <'10 <10
ron 1.1,000 5,500 7,920 7;890 s.370 9,040 9,410 8,650
-ead 15 7.5 <1 .0 <1.0
Manqanese 800 400 4,950 s,010 5,660 5,500 5.810 5,4U'
VIercury 2 1 <0.50 <0.50
Vlolvbdenum 40 20 11 10
rlickel 100 50 62 59 59 61 64 62
Selenium 50 25 <5.0 <5.0
Silver 100 50 <10 <10
fhallium 2 1 <0.50 <0.50
fin 17.000 8.500 <1 00 <1 00
Jranium 30 15 3.01 3.05
/anadium 60 30 <15 <15
Iinc 5.000 2.500 149 12s
Radiolooics (oCiil)
iross Alpha 15 7.5 5.3 (0.9+/-)9,2 fi.2+l-l -2.8 (0.6+/-)3.4 (0.6+l)4.0 (0.8+/-)3.5 (0.6+/-)
VOC (uq/L)
\celone 700 350 <20 <20
Jenzene 5 2.5 <1.0 <1.0
lButanone (MEK)4,000 2,000 <20 <20
larbon Tetrachloride 5 2.5 <1 .0 <'1.0
lhloroform 70 35 <1.0 <1.0
)hloromethane 30 15 <1.0 <1.0
)ichloromethane 5 2.5 <1 .0 <1.0
{aphthalene 100 50 <1.0 <1 .0
I-etrahydrofuran (THF)46 23 <2.0 <2.O
[oluene 1.000 500 <1.0 <1 .0
(vlenes(total)'t 0.000 5.O00 <1.0 <1 .0
Others
:ield pH (S.U.)6.5 - 8.5 6.89 6.59
:luoride (mg/l)4 2 o.2 o.2
)hloride (mq/l)30 32
iulfate (mo/l)2.420 2.430
l-DS (mo/l)3.800 3.550
]eneral lnoroanics Listed in Part .E.1.(c)(2)
larbonate (mq/l)<1 .0 <1 .0
licarbonate (mo/l)43s 407
iodium (mq/l)233 232
rotassium (mc/l)14.9 14.6
vlaonesium /mo/l)234 234
)alcium (mq/l)526 529
[otal anions (meq/L)58.4 58.1
fotal cations (meo/L)56.7 56.2
Concentrations in bold exceed the GWQS
Concentrations shaded exceed the GWCL
(a) = Monthly accelerated moniloring eveni. The gross alpha counting variance exceeded 20%
ATTACHMENT 1
Documentation of Additional Sampling of MW-4
During the 2"d Quarter, 2008
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Mill - GmundwaterDischarge Penuit
Groundwfier Monitoring
Quality Assurance Plan (QAP)
Date: 2.25 -Ul Revision: 2
Page ztO of 4I
AXTACIIMENTl
WIIITE MFSA I'RANI{'M MILL
Locarion (well name). A{.\0 L\ Nau,re and initiats TH -
Date andTime forPurging g / *l /of and Sampling(if different)-
pHBuffer 7.0 1.O
Welt purging Equip Used: y'pu*p or -bailer
Well Pump (if other than f**rDGroOAhS 'Lo"tt)'
Sampling gysnt (rroonrl \,O*\ar kev. Well Sampled in SamplingEvent-$r^J}6
pHBuffer4.o q.q-
SpecificConductance-it{ -uMHoS/cm WettDep*t 143'6 --
Depth to Water Before Purgin CasingVolume (V)4'Yllcll: , (.653h)
3" Well: (36?h)
Conduchnce (avg)-
Well WaterTemP. (avg)-RedoxPotential (Eh)--'furbidity
Weatler Cond. a l car 4 5,^,.n *b Ext'l Amb. Temp.(prior to sampling evsn0-ag'oc (,- t
ft ".--lS Gal.Purged-
Conductaoce l* Li l
Temperatue rt.53
Redox Potential Ctrl-}jU--
rwbidiry [,3l
Tipe:--.=---.*-Gal,Purged -. ,.
Conductance-
Redox Porential (Eh)-
TurbiditY "r
-
p
TemperaEue-
Time:- Gal. Purged
Conductance-
Time:- Gal. Purged-
('nnrlur:tance
Redox Potential (Ett)- Redox Potential (Eh)-
l.
Paged,l of 4l
[&ll - Grousdwater Diseharge Permit
Groundwater Moritoring
Quality Assurarce Plan (QAP)
TurbiditY
Datg 11.17.06 Revision: I
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Turbidity
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Volume of Water Purged When Field Parametefs are Measured -----==-:-
PumpiEg Rafe Calculation
FlowRate (Q), ing1m.Time to evacuate hpo casing volumes (2V)
T=2VlQ=
Numberof casingvolurues evacuated (if other fimn two)
If woll evacuated to drlmess, uumberof gallons evacuated '--------:--:=-
Nameof CertifiedAnalyticatLaboptory if OtherThatBn*gyLrfr, Qq'c.'5t rf-*JOf\ to*l'lo &UJL
Tvneof $ample $arnole
T.akep
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flnilleate if other
X'ilhred
(circle)
Precervstive Added
(circle)
'thtiit as specified
helnwl
vo(b Y) N 3x40ml Y HCX, ff) N
Nufrients N l00ml Yffi/HrSgr Gl N
HeawMetals N 250hl Y)N HNO' (ts) N
All Othcr Non-
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g)N 250ml g/N NoPreservative Addsd
GrossAtplu (r) N 1-000ml Y C{l E,SO. ^ fY) N
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I ,5f FEf {,t3i,?Ef,Giti!f;,;'f i;!t:tr!i#!':UWA":;?,*#;.trf :t:i,#f !#'
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I
ANALYTICAL SUMMARY REPORT
July 07, 2008
Denison Mines (USA) Corp
6425 S Hwy 191
Blanding, UT 84511
Workorder No.: C08051285 Quote lD: C1640 - POC Wells / Monthly Groundwater Sampling
Project Name: 2nd Quarter Semi-Annual Groundwater
Energy Laboratories, lnc. received the following 9 samples from Denison Mines (USA) Corp on 5/30/2008 for analysis.
I Sample lD Client Sample lD Collect Date Receive Date Matrix
c08051285-001 MW 3 i 05/28/08 08:30 05/30/08 Aqueous Metals by ICP/ICPMS, Dissolved
Alkalinity
QA Calculations
Chloride
Fluoride
Nitrogen, Ammonia
Nitrogen, Nitrate + Nitrite
pH
Gross Alpha minus Rn222 and Uranium
Solids, Total Dissolved
Sulfate
SW8260B VOCs, Standard List
:
c08051285-002 MW3A 1 05/28/08 09:35 05/30/08 Aqueous Same As Above
c08051285-003 MW26 - 05127108 14:20 05/30i08 Aqueous Same As Above
c08051285-004 MW4 - 05127t08 15:05 05/30/08 Aqueous SameAsAbove
c0805128+005 MW70 y\ oslzatoa 14:40 oE/30/08 Aqueous Same As Above
c0805'128$006 MW 60 ) 05/28/08 10:32 05/30/08 Aqueous Same As Above
c08051285-007 MW24 .- 05/29/08 07:15 05/30/08 Aqueous Same As Above
c08051285-008 MW 17
C08051285-009 Trip Blank
05/28/08 14:40 05/30/08 Aqueous SameAsAbove
05/29/08 0O:00 05/30/08 Aqueous SW8260B VOCs, Standard Lisl
I
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As appropriate, any exceptions or problems with the analyses are noted in the Laboratory Analytical Report, the
QA/QC Summary Report, orthe Case Nanative.
lf you have any questions regarding these tests results, please call.
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DENISOJ}##
ilIINES
CHAIN OF CUSTODY
Samples Shipped to: American West Analytical Labs
463 West 3600 South
Chain of Custodylsampling Analysis Request
?,lboy.-
Name
,,//?t
Elws.
emperature Failu
From:
To:
CC:
Date:
Subject:
Dane,
Loren Morton
Dane Finerfrock
David Frydenlund; Dean Henderson; Phillip Goble; Steve Landau
Blt9l2008 4:32 PM
Denison Mines: Verbal Notice for VOC Temperature Failures in June Sampling Event
Dave Frydenlund and Steve Landau just called to report that some quarterly THF samples collected on 6/18/08 were sent to
AWAL here in SLC. Upon arrival at AWAL they were found to be between 1 and 5 C. Of course some of those samples
were greater than the 4 C required by the QAP. Dave and Steve were calling to provide verbal notice of the non-
compliance under the Permit.
Dave also said he has been doing some research and has found that the EPA SW-846 method for VOCs now only requires
the sample to arrive at the lab under 6 C. Dave explained that DUSA is planning on asking for a QAP change to get those 2
extra degrees. I told DUSA that they are welcome to ask for a QAP change at anytime, just send in a written request with a
redline / strikeout version of the currently approved QAP.
Dave also said they have made several changes of late to improve their ability to comply with the sample temperature
requirements, these included:
1, Using regular ice, instead of Blue Ice to cool the samples (Blue Ice was used previously)
2. Do sampling earlier in the quarter - so as to allow more time for re-sampling (if needed),
3. Do sampling earlier in the week, and use overnight shipping to get the samples to the lab on a business day - so they
don't set on a loading dock, un-refrigerated, over the weekend.
4. DUSA calls the lab early on - to confirm the sample temperature on arrival at the lab.
Dave repoded he will send in a written notice about this problem - as the Permit requires - within 5 days.
On a different note, DUSA got our 8/U08 Notice of Agency Findings letter - regarding the VOC'sample temperature
problems for the April and May, 2008 samples (in response to lhe 717 108 DUSA written notice and claim of affirmative
defense). Dave said he understood why he didn't meet the affirmative defense criteria, and that the DRC was leaving the
door open for them to qualify for it on those April and May samples. He said he would soon provide a new letter that would
outline what they have already done to solve the temperature problem. Presumably, it would include the 4 points above.
Dave recognized that DUSA's earlier conclusion that the lack of 5-day coolers was the entire root cause, and that there
were other factors that needed to be fixed (hence the 4 points made above). Dave repofted that sample temperature
results from July have been better. I told Dave that we would have to see the written reports to confirm all that, but that I
was encouraged to hear about these recent improvembnts.
Also, Dave acknowledged receipt of the 8/4/08 DRC NOV regarding the sample temperature problems for the March, 2008
sampling event. He acknowledged that issuance of NOV meant it was too late for affirmative defense for those samples. I
reiterated the wording in the NOV, that we are not currently considering a monetary penalty for the March, 2008 sampling
event, provided the problem is fixed in a timely manner.
If you have questions about this phone call, please let me know.
Loren
JoNM.,rlro*,r*
Govemor
GARY HERBERT
Lieutenant Govemor
State of Utah
Department of
Environmental Quality
Richard W. Sprott
Executive Director
DTVISION OFRADIATION
CONTROL
Dane L. Finerfrock
Director
I
Augus "ommm
Mr. David C Frydenlund
Vice President and General Counsel
Denison Mines (USA) Corp. (DUSA)
1050 Seventeenth St. Suite 950
Denver, Colorado, 80265
SUBJECT:
"J:'::: re
BeceiprFee th$@
1_"1,1!1r"yolr": I I Fq;{SUBJECT:JULYT.200SOUSAARGUMENTSFOR', Ul'AFFTRMATvE DErervse neGeioiNo iirriieiqrune \<ji-l
--o
EOtftf
t3 (FEIEIEt
Ef
July 7,2008 DUSA Arguments for Affirmati {
Exceedances, April und Muy, 2008 Accelera t
Denison Mines (USA) Corp. (DUSA) White
Notice of Agency Findings
EXCEEOANCES. APRIL AND MAY, 2OO8 ACCELERATEOGRoUNDWATERMoNIToRING EVENT, DENISoN IMINES (USA) CORP. (DUSAI WHTTE MESA U&qNTUM I
MILL NEAR BLANDING. UTAH: NOTICE oF AGENCY
FlNDINGS/PG
DAVIO FRYDENLUND
DENISON MINES (USA} CORPORATION
INOEPENDANCE PLAZA STE 950
1O5O 17TH ST
DENVER CO 80255
EIEtEr\-
Dear Mr. Frydenlund
On July 3,2W8 DUSA notified (by phone) the DRC that two sets of samples were received and
accepted by its analytical laboratory at temperatures greater than the maximum allowed temperature
of 4"C for VOCs. These two sets of samples were received at 5oC and 6oC for the April and May,
2008 accelerated monitoring events, respectively. It appears that these temperature exceedances are
violations of Part I.E.1(a), Part tr.A of the Permit, and Table 1 and Section 9.3(d) of the approved
DUSA QAP. DUSA written notification of the temperature exceedances was provided to the DRC by
e-mail on July 7,2008.In the July 7, 2008 notice DUSA argues that Affirmative Defense set out in
Part I.G.3(c) of the Permit should be applicable to these temperature exceedances for the following
reasons:
DUSA submitted verbal notification of the temperature exceedances on July 3,2008 and
written notification on July 7 ,2008 according to UAC-R3 17 -6-6.13
The failure was not intentional or caused by Permitee negligence, either in action or in
failure to act,
The Permittee has taken adequate measures to meet Permit conditions in a timely matter or
has submitted to the Executive Secretary, for the Executive Secretary's approval, and
adequate plan and schedule for meeting Permit conditions, and
Provisions of UAC 19-5-107 have not been violated.
168 North 1950 West . FO Box 1,14850. Satt take City, [.rT 841l4-4E50. phone [phone]. fax [phone]OC7
T.D.D. (801) 5364414. www.deq.utah.gov
Prinled on 100% recvcled paper
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SENDER:r Comolete iterns 1 and/or 2 for additional services.r Complete items 3, 4a, and 4b.r Print your name and address on the reverse of this form so that we can return thiscard to vou.r Attach this form to the front of the mailpiece, or on the back if space ooes nol
oermit..W(ite "Return Receipt Requested"on the mailpiece belDw the article number.r The Return Receipt will show to whom the article was delivered and the date
SUBJECT: JULY 7.2008 DUSA ARGUMENTS FOR
AFFIRMATIVE DEFENSE REGARDING TEMPERAruRE
EXCEEDANCES. APRIL AND MAY,2OO8 ACCELEMTED
GROUND WATER MONITORING EVENT, DENISON
MINES (USA) CORP. (OUSAI WHITE MESA UMNIUM
MILL NEAR BrANDING. UTAH: NOTICE OF AGENCYrwoney'fr,bofik
onvro rnvdEriiur'ro
DENISON MINES (USA} CORPORATION
INDEPENDANCE PLAZA STE 950
1050 17TH ST
DENVER CO 80265
4a. Article Number
Service ype
I also wish to receive the
following services (for an
extra fee):
1. E Addressee's Address
2. I Restricted Delivery
Consult Dostmaster for fee.
D Registered
E Exuess Mail'JaLl Retufir Receiotfor Merchandise
lQertifiedLl lnsured
E coo
0 6 2001
B. Addressee's Address (Only if requested
aflftfgn/pdard)
Radialion Contot
PS Form 1jDecember1994 1o2ses-e8-B-022e DOmeStiC RetUrn ReCeipt
Urureo SrnrEs Posrt SeRvtce First-Class Mail
Postage & Fees Paid
USPS
Permit No. G-10
UTAH DEPARTMENT OF ENVIRONMENTAL QUALIry
DIVISION OF RADIATION CONTROL
P O BOX 144850
SALT LAKE CIry UT 84114-4850
o Print your name, address, andZlP Code in this box o
1- fli,,:
If you have any questions or corrments regarding this letter, please contact Phil Goble at (801) 536-
4044.
UTAH WATER QUALITY BOARD
DLF/PRG:prg
cc: M.M. Hubbell, Utah Attorney General's Office
F:/DUSA/2,d Q'IR 2008 CW Sampling
File: DRC Findings of April & May Temp Exceedances.doc
From:
To:
CC:
Date:
Subject:
Attachments:
Steve Landau <[e-mail]>
Phillip Goble <PGOBLE @ utah.gov>
Loren Morton <[e-mail]>, David Frydenlund <DFrydenlund@denisonmi...
10/13120082:47 PM
MW-4 Results
MW 4 5-27-08.pdf
Hello Phil.....here are the results for MW-4 sampled on 5-27-08
Regards
Steve
Steve Landau
Manager, Environmental Affairs
t: [phone] I f: [phone]
1050 17th Street, Suite 950, Denver, CO 80265
DENISON MINES (USA) CORP
www.denisonmines.comchttp://wtlw.denisonm ines.com/>
This e-mail is intended for exclusive use the person(s) mentioned as the recipient(s). This message and any attached files with it
are confidential and may contain privileged or proprietary information. lf you are not the intended recipient(s) please delete this
message and notify the sender. You may not use, distribute print or copy this message if you are not the intended recipient(s).
,*rrnrrnrOr),rr, tNC. .zssssattCreekHrghway(8260rr,r, ,)o , Casper; wY82602
Toll Free 888.235.0515 , 307.235.0515 ' Fax [phone] ' [e-mail] ' www.energylab.con
Client:
Project:
Lab lD:
Client Sample lD
LABORATORY ANALYTIGAL REPORT
Denison Mines (USA) Corp
2nd Quarter Semi-Annual Groundwater
c0805128$004
MW4
Report Date: 07/07/08
Collection Date: 05/27108 15:05
DateReceived: 05/30/08
Matrix: Aqueous
Amlyses Result Units Qualiflers RL
MCUQCL Method Analysis Date / By
MAJOR IONS
Carbonate as CO3
Bicarbonate as HCO3
Calcium
Chloride
Fluoride
Magnesium
Nitrogon, Ammonia as N
Nitrogen, Nitrate+Nikite as N
Potassium
Sodium
Sulfate
PHYSICAL PROPERTIES
pH
Solids, Total Dissolved TDS @ 180 C
METALS. DISSOLVED
Arsenic
Beryllium
Cadmium
Chromium
Cobalt
Copper
lron
Lead
Manganese
Mercury
Molybdenum
Nickel
Selenium
Silver
Thallium
Tin
Urenium
Vanadium
Zinc
RADIONUCLIDES - DISSOLVED
Gross Alpha minus Rn & U
Gross Alpha minus Rn & U Precision (t)
Gross Alpha minus Rn & U MDC
ND mg/L
330 mg/L258 mg/L
44 mgiL
0.4 mg/L
114 rng/LND mg/L
6.50 mg/L
6.64 mg/L
82.6 mg/L
832 mg/L
7.2O s.u.
1550 mg/L
ND ug/L
ND ug/LND ug/LND ug/L
ND ug/L
ND ugiL
ND ug/LND ug/LND ug/LND ug/L
ND ug/LND ug/L46.4 ug/LND ugll
ND ug/L
ND ug/L
9.10 ug/LND ug/L
ND ug/L
0.E
0.3
0.3
A232A B
42324 B
8200.7
44500-Cl B
A4500-F C
E200.7
E350.1
E353,2
E200.7
E200.7
A4500-so4 E
8200.8
E200.8
E200.8
E200.8
E200.8
E200.8
8200.7
8200.8
E200.8
E200.8
E200.8
E200.8
E2OO,E
E200.8
E200.8
E200.8
8200.8
E200.8
E200.8
E900.1
E900.1
E900.1
1
1
0.52
1
0.1
0.50
0.05
0.05
0.50
3.8
10
0.01
10
5.U
0.50
0.50
25
10
10
30
1.0
10
0.50
10
20
5.0
10
0.s0
100
0.30
15
10
A4500-H B 0s/30/08 16.21 t ih
A2540 C 06/02/08 09:19 /dd
06i03/08 14:37 I tjl
06/03/08 14:37 I \l
06/16/08 16:05 / cp
06/06/08 15:33 / ljl
06/04/08 13:51 / ljl
06/15/08 l6:05 / cp
06/05/08 08:28 / eli-b
06/10/08 10:54 i eli-b
06/'i6/08 16:05 / cp
06/16/08 16:05 / cp
06/03/08 16:47 / sp
06/1 1/08 06:54 / sml
06/1 ,/08 06:54 / sml
06/11/08 06:54 / sml
06/11/08 06:54 / sml
06/11/08 06:54 / sml
06/11/08 06:54 / sml
06/09108 2A:29 I cp
06/11108 06:54 / sml
06/11/08 06:54 / sml
06/11/08 06:54 / sml
06/'11l08 06:54 / sml
06/11/08 06:54 / sml
06/1 1/08 06:54 / sml
06/11/08 06:54 / sml
06/1 1/08 06:54 i sml
06/1 1/08 06:54 / sml
06/11/08 06:54 / sml
06/11/08 06:54 / sml
06/1 1/08 06:54 / sml
06/18/08 12'.13 I cN'l
06/18/08 12.13 / crw
06/18/08 12:13 / cnar
pCiiL
pCiiL
pCi/L
R€port RL - Analyte reporting limit.
Definitions: eCL - euality control timit.
MDC - Minimum detectable concentration
MCL - Maximum contaminant level.
ND - Not detecled at the reporting limit.
D - RL increased due to sample matrix interference
mIIW
,*rru, *rot,rt tcc. . 23ss salt creek Highway (8260,, , ,.o. ,)u, ' caspet; vw 82602
Toll Free 888.235.0515 . 307.235.0515 . Fax [phone] ' casper@energylab,com ' wwwenergylab,com
Client:
Project:
Lab lD:
Client Sample lD
LABORATORY ANALYTICAL REPORT
Denison Mines (USA) Corp
2nd Quarter Semi-Annual G roundwater
c08051285-004
MW4
Report Date: 07/07/08
Collection Date: 05127108 15:05
DateReceived: 05/30/08
Matrix: Aqueous
Analyses Result Units Qualifiers RL
MCUQCL Method Analysis Date / By
DATA QUALITY
NC Balance (t 5)
Anions
Cations
Solids, Total Dissolved Calculated
TDS Balance (0.80 - 1,20)
VOLATILE ORGANIC COMPOUNDS
Acetone
Benzena
Carbon tetrachloride
Chloroform
Chloromethane
Methyl ethyl ketone
Methylene chloride
Naphthalene
Toluene
xylenes, Total
Sun: 1,2-Dichlorobenzene-d4
Su rr: Dibromofluoromethane
Surr: p-Bromofl uorobenzene
Surr: Toluens-dB
3.07
24.5
26.0
1540
1.01
ND
ND
't.9
2500
NO
ND
ND
ND
ND
ND
108
110
102
96.0
%
meq/L
meq/L
mg/L
Calculation
Calculation
Calculation
Calculation
Calculation
06/1 9/08 09:55 / sw
0611 9/08 09:55 / sw
06/1 9/08 09:55 / sw
06/,19/08 09:55 / sw
06/19/08 09:55 i sw
SW826OB 06/06/08 03:44 / dkh
SW8260B 06/06/08 03:44 / dkh
SW8260B 06/06/08 03:44 / dkh
SW8260B 06/06/08 04:23 / dkh
SW8260B 06/06/08 03:44 / dkh
SW8260B 06i06/08 03:44 / dkh
SW8260B 06/06/08 03:44 / dkh
SW8260B 06/06/08 03:44 / dkh
SW8260B 06/06/08 03:44 / dkh
SW8260B 06/06/08 03:44 / dkh
SW8260B 06/06/08 03:44 / dkh
SW8260B 06/06/08 03:zl4 / dkh
SW8260B 06/06/08 03:44 / dkh
SW8260B 06/06/CB 03:44 / dkh
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
%REC
%REC
%REC
%REC
20
1.0
1.0
100
1.0
20
10
10
1,0
1.0
B0-1 20
70-1 30
80-1 20
80-1 20
Report RL ' Analyte reporting limit.
Definitions: eCL - euality control limit.
MDC - Minimum detectable concentration
MCL - Maximum contaminant level.
ND - Not detected at the reporting limit.
D - RL increased due to sample matrix interference.
)
soJ)/
INES
Denison Mines (USA) Corp.
1 050 1 7th Street, Suite 950
Denver, CO 80265
USA
Tel : [phone]
Fax : [phone]
www.denisonmines.com
DENT
September 4,2OOB
VIA PDF AND FEDERAL EXPRESS
ItliI r-
\':i\(
Mr. Dane L. Finerfrock
Executive Secretary
Utah Radiation Control Board
State of Utah Department of Environmental Quality
168 North 1950 West
Salt Lake City, UT B4'114-4850
Dear Mr.
Re: July 7 2OOg DUSA Arguments for Affirmative Defense Regarding Temperature Exceedances, April
and May,2008 Accelerated Groundwater Monitoring Event, Denison Mines (USA) Corp. (DUSA) White
Mesa Uranium Mill(the "Mill") near Blanding, Utah: Notice of Agency Findings
Reference is made to your letter dated August 1, 2008, which DUSA received on August 6, 2008, in which you
provided DUSA with notice of agency findings relating to DUSA's July 7, 2007 written notice pursuant to R313-
6-6.13.
ln its letter, DUSA asserted that the Affirmative Defense set out in Part LG.3(c) of the Mill's Groundwater
Discharge Permit should be applicable to two sets of groundwater samples that were received and accepted by
the Mill's contract analytical laboratory at temperatures greater than the maximum allowed temperature of 4'C
for the April and May 2008 accelerated monitoring events. DUSA also advised in that letter that it was
undergoing a number of experimental efforts involving ratio of ice to sample volumes, transportation logistics
and sample collection timing, in order to better define the root cause and to allow DUSA to prevent re-
occurrences of the problem. DUSA stated in the notice letter that it would provide the Executive Secretary with
a follow up letter after completion of this review.
ln your August 1, 2008 letter you advised that, in its July 7 submittal, DUSA had met three of the four items
needed to meet the Affirmative Defense requirements under UAC R317-6-6.16(cX3); however DUSA failed to
satisfy the fourth requirement because it did not provide the Executive Secretary with a schedule or date when
DUSA would be back in compliance. ln your letter you also stated that although DUSA failed to meet all the
criteria for the Affirmative Defense in its July 7,2OOB submittal, DUSA can still submit a date whereby
compliance for future samples will be regained, and thereby satisfy the final item needed to meet the Affirmative
Defense.
Please accept this letter as the follow up letter referred to in DUSA's July 7 submittal, and as DUSA's submittal
of a date whereby compliance for future samples will be regained, as required in order to meet the Affirmative
Permit.
Follow Up to July 7,2OO8 DUSA Notice
Since the July 7, 2008 notice to the Executive Secretary, DUSA has:
canvassed another Utah permittee, that is subject to similar groundwater monitoring requirements as
well as the 4'C sample temperature requirement, to determine the methods it uses for the
transportation of samples to its contract analytical laboratory;
performed a number of experiments relating to the ratio of ice to sample volume, the type of ice to be
used, and the effectiveness and timing of refrigeration at the Mill prior to packing samples into the
coolers; and
reviewed the logistics of transportation of samples from the Millto the analytical laboratory and timing
and handling of samples upon receipt by the analytical laboratory, to ensure that samples are taken
and sent to the analytical laboratory on a schedule that minimizes the time between shipment to and
receipt by the analytical laboratory.
Based on this review, DUSA has determined that the root cause of the past failures to satisfy the sample
temperature requirement was not due solely to the failure to use "S-day'' coolers, as originally proposed by
DUSA, but due to a combination of the following factors:
failure to use regular ice, rather than "blue ice" (i.e., blue plastic ice blocks that are re-frozen prior to
each re-use) to coolthe samples during transit. The analytical laboratory and the other permittee have
advised DUSA that they have seen better success in meeting the sample temperature requirement
when regular ice rather than blue ice is used. The Mill has used blue ice as the coolant in its sample
coolers for the last several years;
failure to ensure that there is a proper ratio of ice to sample volume. Mill personnel have conducted a
number of experiments to arrive at an acceptable ratio of ice to sample volume. ln the past, Mill
personnel have not been systematic on this point;
failure to collect samples on a schedule that minimizes sample transit time between the Mill and the
analytical laboratory. ln the past, samples have been collected and sent to the analytical laboratory at
various times during the week. ln some cases this has resulted in the samples sitting in transit over the
weekend;
failure to use "S-day'' coolers in all circumstances. While it is evident from recent failures to satisfy the
sample temperature requirements that the use of such coolers does not guarantee success, DUSA has
concluded that the better insulated coolers will provide a better chance of success, given that the
factors set out above are also satisfied; and
failure of DUSA to schedule sampling events and identify sample temperature problems early enough in
the sampling period to allow re-sampling during the period, if necessary.
As a result of this analysis, DUSA has changed its practices, effective August 1, 2008, as follows:
a
a
a
it will continue to use S-day coolers. Mill stafl have been advised that S-day coolers are to be used in
all circumstances for water samples;
it will use regular ice as a coolant;
it will ensure that there is a proper ratio of ice to sample volume in each cooler;
it will collect samples early enough in the week, so that they will be received by the analytical laboratory
on a business day and will not sit in transit over the weekend;. it will collect samples as early in each sampling period as is reasonably practicable, in order to allow for
re-sampling during the period if necessary;
Defense requirement. ,no"ila R317-6-6.16(c)(3) and Part 1.g.3(c) o,JM,,,'" Groundwater Discharge
oENrsoJr/
,UIINES
it will contact the analytical laboratory upon scheduled receipt of the samples to ensure that they have
been received by the analytical laboratory within the required temperature range; and
lf samples are not received at the analytical laboratory within the required temperature range, the
samples will be re-taken during the period and new samples will be submitted to the analytical
laboratory for analysis.
The loregoing are revised practices that the Mill intends to follow in order to ensure that the sample temperature
requirements are satisfied. These may be fine{uned as the Mill gains more experience with them. However,
the key feature is that samples will be taken early enough in each sample period to allow for re-sampling if
necessary.
Date Whereby Compliance for Future Samples will be Regained
Some but not all of the foregoing revised practices were instituted commencing July 1, 2008. No samples for
July, 2008 exceeded the 4"C requirement upon receipt at the analytical laboratory. The remainder of the
foregoing practices were instituted effective August 1, 2008. As a result, DUSA hereby advises that, for the
purposes of the Affirmative Defense under UAC R317-6-6.16(c)(3) and Part 1.9.3(c) of the Mill's Groundwater
Discharge Permit that were asserted by DUSA in its July 7,2OOe notice to you, compliance for future samples
will be regained effective as of July 1, 2008.
It should also be noted that the two sets of samples referred to in the July 7 notice (April and May accelerated
samples from MW-14, MW-26 and MW-32) were received at 5'C for April and 6'C for May. We understand that
current NELAC standards and the current version of EPA SW-846 both now require that those samples be
received by the laboratory at 6"C or less, not at 4'C or less. DUSA intends to make a submission to the
Executive Secretary to change the Mill's Groundwater Sampling Quality Assurance Plan to reflect these new
standards.
lf you have any questions or require any further information, please contact the undersigned.
Yours very truly,
Derutsott
Ron F. Hochstein
Harold R. Roberts
Steven D. Landau
David E. Turk
DENISOJ)//
Vice President, Regulatory Affairs and Counsel
,UIINES
DENI5OND/
II,IINES
)
/
Denison Mines (USA) Corp.
1050 17th Street, Suite 950
Denver, CO 80265
USA
Tel: [phone]
Fax: [phone]
www.denisonmines.com
August 29,2008
VIA FEDERAL EXPRESS
Mr. Dane L. Finerfrock
Executive Secretary
Utah Radiation Control Board
State of Utah Department of Environmental Quality
168 North 1950 West
salt Lake city, uT 84114-4850
Dear Mr. Finerfrock:
Transmittal of 2nd Quarter 2008 Routine Groundwater Monitoring Report and Routine
DMT Performance Standard Monitoring Report For the White Mesa Uranium Mill
Enclosed are two copies of the White Mesa Uranium Mill Groundwater Monitoring Report for the 2nd
Quarter of 2008, as required under Parts I.F.1 and 2 of State of Utah Groundwater Discharge Permit
No. UGW370004. Please note that the results for this quarters sampling do not indicate any
exceedances of GWCL's for new parameters or locations that have not previously exceeded their
respective concentration limits.
If you should have any questions regarding these reports, please contact me.
Yours very truly,4zLDrNsox MrNBs (USA) Conp.
Steven D. Landau
Manager, Environmental Affairs
Ron F. Hochstein
Harold Roberts (w/o enclosure)
David Frydenlund
David Turk
SMNffiffiffiM
fi,IINffi$
Oonison Miner {U$A) Gorp.
1050 l?th Str66t, Suito s50
Donvsr, GO 80265
USA
Tol :303 8281798
Fax :[phone]$
www.dsnigonmines.com
August 22,2008
VIA PDI.- AND FEDERAL EXPRESS
Dane L. Finerfrock, Executive Secretary
Utah Radiation Control Board
Utah Department of Envirorunental Quality
168 North 1950 Wesi
P.O. Box 144810
Salt Lake City, tJT 84114-4810
Dear Mr. Finerfi'ock:
Re: State of Utah Ground Water Discharge Permit No. UW370004 White Mesa Uranium Mill
- Notice Pursuant to R313-6-6.13
Please take notice purcuant to R3l3-6-6.13 that upon receipt of electronic data on August 18,2008
Denison Mines (USA) Cotp. (DUSA) discovered that one of the tbur sets of samples sent to Amedcan
West Analytical Laboratories (AWAL) for tetrahydrofuran (THF) analysis was received at 50 C which
exceeds the 4o C temperature specification cited in the Ground Water Monitoring Quality Assurance
Plan (QAP) for the White Mesa Mili. tnitial notice of this instances of'non-compliance with the QAP
was given to the Executive Secretary by telephone on August 19, 2008 (within 24 hours of the
discovery).
DUSA believes that the affirmative defense set out in Part I.G.3.c) of the Mill's State of Utah
Groundwater Discharge Permit (the Permit) should be applicable to this non-compliance situatitx, for
the firllowing reasons :
the failure was not intentional or caused by DUSA's negligence,
DUSA has taken adequate measures to meet pennit conditions in a timely manner or has
submitted to the Executive Secretaly, for the Executive Secretary's approval, an adequate plan
and schedule for meeting permit conditions, as detailed below; and
the provisions of UCA 19-5-107 have nr:t been violated.
The following information is relevant:
-Ilhe Mill's QA Manager received electronic data relating to samples sent to AWAL fbr 3"1 Quarter,
2008 THF analyses on August 18, 2008. Upon review of the chain of custody information it was
I
a
discovered that one of the four sets of samples sent to AWAL was received by the laboratory at 5o C.
The QA Manager imrrediately contaoted AWAL and the Mill Radiation Safety Officer (RSO) about
fhis matter, since prior communication between the Mil1's sampling technician and AWAI, had
indicated that these samples had been received within the temperaturc specification. The AWAL
Director reporled to the QA rnanager that the samples were within the temperature speoification listed
for organic analyses under NEI,AC and the EPA SW-846 guidance. More specifically, these
references specify that samples received for volatile and semi-volatile analyses are acceptable at
temperatures equal to or less than 6o C. According to the Mili RSO, r,vhen the Mill's sarnpling
technician asked the laboratory whether the samples were within the ternperature specification he
assumed that when the laboratory reported that the samples were cornpliant with the temperature
specification that AWAL understood hc was referring to the 4o C requirement in the DUSA QAP.'fhis assumption was based on prior contact by Denison with AWAI- about previous temperature
concerns and the belief that the laboratory was fuliy aware of this particular specification in Denison's
QAP. Unfortunately, the infbrmation about Denison's particular requirement went unnoticed by
AWAL personnel receiving the sarnples and they assumed that the over-riding NELAC and SW-846
guidance applied to these samples. Accordingly, this miscommunication resulted in a failure to reject
the samples and subsequent re-sampling.
DUSA believes that the affinnative def'ense in Part LG.3.c) of the Pennit shoultl be applicable to this
sample temperature n<ln-compliance situation. 'fhe failure to discover the sample temperature
exceedance upon anival at the laboratory, and oonsequent inability to re-sample, was the result of
miscommunication and was unintentional. Appropriate corective illeasures had been taken by
Denison in response to a prior root-cause analyses related to ternperatule concems. These actions
included delivery of the samples in 5-day soolers to assure sample receipt at orbclow the 4o C QAP
requircment and a follow-up contact with the laboratory after sarnple shipment to determine whether
sarnple temperatures on an'ival were compliant. These rlcasul'os were aimed at assuring better sample
transport temperature control and to provide an opportunity tbr re-sample should in-transit temperature
control failure occur. Unfbrtunately, the miscommunication between the laboratory personnel and
Denison's technician, coupled with the laboratory's application of standard laboratory practices in lieu
of Denison's rnore restrictive requirement, led to the non-compliant sample receipt tcmperalure.
During our telephone convorsation with Mr. I",oren Mofien on August 19, 2008 f)enison related to Mr.
Morten the disparity between sample temperature requirements in the QAP and the seemingly over-
riding requirements of NELAC and the SW-846 guidance. Civen that the curent NELAC and SW-
846 sample temperature requirements differ liom those r:ited in tlie QAP, Denison inftrrmed Mr.
Morton that a revision to the QAP in this regard would be proposed in order to correct the temperature
requirement in the QAP, maintaining consistency with nationally accepted laboratory practices. That
revision to the QAP will be forwarded to the UDEQ for its consideration by September 15, 2008.
However, until such time that the Executive Secretary approves l)enison's request for modification of
the QAP, Denison will retain the 4u C requirement.
Regarding the status and schedule tbr cornpliance with the sample receipt temperature requirement,
Denison has irnplemented further corrective actions and, as a result, has been compliant since July,
2008. More specifically, subsequent to the use of 5-day coolers, and in response to further difficulties
in rneeting the temperature specification after that change, an adclitional root-cause evah.ration was
conducted (as summarizecl in our july 3, 2008 email to you) and, in response, further conective
measures were identiflecl and implemented. These measures included: l) the use of wet ice placed in
zip-lock hags and on top of the samples during transpott (in lieu of blue ice mingled with the sarnples),
2) ad.iusted the volume of ice relative to the volume of samples, 3) adjusted sample shiprnent dates to
ffi\ilm doEtvrs&r{ wJl;iMIh{ns
assure overnight delivery during weekdays in order to avoid lengthy transit times or delivery on
weekends and, 4) the collection of samples early in the month so that sufficient time would be
available fbr re-sampling should a temperature failure occur. These corrective measures were
implemented in July, 2008, after the receipt by the laboratory of these June sample sets which are the
subject of this notice. Results to date since these additionai measures have been taken have been
successful in keeping sample temperatures at 4" C or less.
DTJSA appreciates your oonsideration of this matter and if you should have any questions please
contact me or David Frydenlund.
Yr:urs truIy,
/1f/gdfr;&L'
H Steven D. Landau
Manager, Environmental Affairs
Ron F. Hochstein
Harold R. Roberts
David C. Frydenlund
David E. Turk
OSN'$&NryM#MINS$
il6
DENI
o
soJ)/
INES
Denbon f,inrr (USA) Corp.
l0t0 17th St r..t, Suib 950
Denvrr, CO 80265
usA
Tel :303 62&7798
Fer : 303 38$4125
August 6, 2008
SENT VIA ELECTRONIC MAIL AI\D FEDERAL EXPRESS
Dane L. Finerfrock, Executive Secretary
Utah Radiation Control Board
Utah Department of Environmental Quality
168 North 1950 West
P.O. Box 144810
Salt Lake city, uT 84114-4810
;-, > :?- .
State of Utah Ground Water Discharge Permit No. UW370004 (the 6G\IFDP") White Mesa
Uranium Mill - Notice Pursuant to Part I.G.l(a)
Dear Mr. Finerfrock:
The White Mesa uranium mill (the "Mill") completed its 2'd quarter, 2008 groundwater sampling under the
GWDP during the period of May 27 tltrough June 18, 2008. Samples were collected on May 27, 28 & 29 and
June 3, 4, 5,9, 12, 16, 1 7 & 1 8. The final analytical results of these samplings were received by Denison in four
data sets dated July 7 , 2008, July 17, 2008 (two sets) and Jily 27 , 2008.
Under the GWDP it is intended that background groundwater quality will be determined on a well-by-well
basis, as defined by the mean plus second standard deviation concentration. The Mill is currently in the process
of working with the Utah Division of Radiation Control to establish background (including the mean plus
standard deviation) for all of the constituents being sampled under the GWDP. Until background is established,
the GWDP requires that constituent concentrations in each monitoring well shall not exceed the Groundwater
Control Limits ("GWCLs") set out in Table 2 of the GWDP.
Pursuant to Part I.G.l.a) of the GWDP, please take notice that the concentrations of the following constituents
in the following monitoring wells sampled for the 2nd Quarter, 2008 exceeded their respective GWCLs in Table
2 of the Permit:
Table I - GWCL Exceedances for the Quarterly and Semi-Annual Sampling
Monitoring Well
(Water Class)
Constituent GWCL
(us/L)
Sample Result (ug/L)
MW-3 (Class III)
Manganese 400 810
Uranium l5 31.3
Selenium 25 73.4
/rl
Ir,:
l.'.
\I t.tir'' -,, '\ir: .i:\\
\(-'
Monitoring Well
(lVefer Cless)
Constituent GWCL
lnoll )
Sample Result (ug/L)
MW-s (Class II)
Mansanese 200 2s8
MW-12 (Class III)
Uranium 15 16.7
MW-14 (Class III)
Uranium t5 6r.3
Manganese 400 2.290
MW-15 (Class III)
Selenium 25 r06
Uranium t5 43.9
MW-17 (Class III)
Uranium l5 29.4
MW-18 (Class II)
Uranium 7.5 44.8
Thallium 0.5 t.34
MW-19 (Class II)
Flouride r.0 l.l
MW-26 (Class III)
Mansanese 400 I.130
Uranium 15 2t.7
Chloroform 35 2.000
Dichlormethane 2.5 110
MW-32 (Class III)
Manganese 400 5,400
Nickel 50 62
Iron 5.500 8.650
Unless the compliance status for any constituents in any wells is determined otherwise by the Executive
Secretary, the Mill will, pursuant to Part I.G.l.b)l) of the Permit, commence or continue, as the case may be,
accelerated sampling of each of the foregoing constituents in its respective well on a monthly or quarterly basis,
as applicable, and as set forth below. No new accelerated monitoring requirements were added on the basis of
this 2nd Quarter, 2008 sampling period.
Table 2 - Accelerated Monitoring Requirements as of August 6, 2008
Monitoring Well
(Water Class)Constituent
Normal
tr'requency of
Samnlinp
Accelerated
Frequency of
Samolins
Commencement of
Accelerated
Monitorine
MW-1
(Class II)
Tetrahydrofuran Semi-Annual Ouarterly 4- Ouarter 2005
Manganese Semi-Annual Ouarterly l"'Ouarter 2006
MW-3
(Cless III)
Manganese Semi-Annual Ouarterly l"'Ouarter 2006
Selinium Semi-Annual Quarterly 3'" Ouarter 2006
Thallium Semi-Annual Ouarterly 4- Ouarter 2005
Uranium Semi-Annual Quarterly 4n Ouarter 2005
Tetrahvdrofuran Semi-Annual Ouarterly 3* Ouarter 2006
MW-5
(Class II)
Manganese Semi-Annual Ouarterly 4'" Ouarter 2005
OENISOJ)//,utNEs
Monitoring \ilell
(Water Class)
v
Constituent
Normal
Frequency of
Samolins
Acce-I-erated
Frequency of
Ssmnlino
Commencement of
Accelerated
Monitorins
MW-5 Contd.Fluoride Semi-Annual Ouarterly 4* Ouarter 2005
Tetrahydrofuran Semi-Annual Quarterlv ls Ouarter 2006
MW-12
(Class III)
Uranium Semi-Annual Quarterly 4'" Ouarter 2005
Tetrahvdrofuran Semi-Annual Ouarterly 4'Ouarter 2005
MW-14
(Class III)
Mansanese Quarterly Monthly June 2005
Uranium Ouarterly Monthlv June 2005
MW-15
(Class III)
Selenium Semi-Annual Ouarterly 4'" Ouarter 2005
Uranium Semi-Annual Quarterlv 4- Ouarter 2005
MW-17
(Class III)
Uranium Semi-Annual Quarterlv 4'" Ouarter 2005
Thalium Semi-Annual Ouarterlv 1" Ouarter 2006
MW-l8
(Class II)
Thallium Semi-Annual Ouarterly 4'o Ouarter 2005
Uranium Semi-Annual Quarterly 4* Ouarter 2005
Manganese Semi-Annual Ouarterlv Januarv.2008
MW-19
(Class IT)
Fluoride Semi-Annual Quarterly l" Ouarter 2006
Selenium Semi-Annual Ouarterly 4" Ouarter 2005
Thallium Semi-Annual Quarterly 1" Ouarter 2006
Uranium Semi-Annual Ouarterly 4'" Ouarter 2005
MW-26
(Class III)
Manganese Quarterly Monthly June 2005
Uranium Ouarterly Monthlv June 2005
Chloroform Quarterly Monthly June 2005
Dichloromethane Ouarterly Monthlv September 2005
MW-32
(Class III)
Cadmium Ouarterlv Monthly June 2005
Iron Quarterly Monthlv June 2005
Mansanese Ouarterlv Monthly June 2005
Nickel Quarterly Monthly June 2005
Gross Aloha Ouarterlv Monthly March2007
If you have any questions or require any further information, please contact the undersigned.
Yours truly,%
ZDenison Mines (USA) Corp.
Steven D. Landau
Manager, Environmental Affairs
DENlsOJ)II
MINES
Ron Hochstein
Harold Roberts
David Frydenlund
David Turk
OENISOJ)II
DENISOJ)//
MINES
Denbon tlines (USA) Corp.
1050 17th Str.et, Suite 95{,
Dcnvcr, CO 80265
USA
Tol : 303 628-7798
Far : 303 389.f125
July 7, 2008
VIA PDF AND FEDERAL EXPRESS
Dane L. Finerfrock, Executive Secretary
Utah Radiation Control Board
Utah Department of Environmental Quality
168 North 1950 West
P.O. Box 144810
Salt Lake City, UT 84114-4810
Dear Mr. Finerfrock:
State of Utah Ground Water Discharge Permit No. UW370004 White Mesa Uranium Mill
- Notice Pursuant to R313-6-6.13
Please take notice pursuant to R313-6-6.13 that Denison Mines (USA) Corp. (DUSA) initiated a
follow-up telephone call with its contract analytical laboratory on July 2,2008 to determine whether
the tempirature of samples delivered for the second quarter of 2008 had met the 40 C temperature
specification. As a result of the call, DUSA discovered two instances where samples were received at
the White Mesa Mill's (the Mill's) contract analytical laboratory above the 4o C specification, as
detailed below. Initial notice of these instances of non-compliance was given to the Executive
Secretary by telephone on July 3, 2008 (within 24 hours of the discovery).
DUSA believes that the affirmative defense set out in Part I.G.3.c) of the Mill's State of Utah
Groundwater Discharge Permit (the Permit) should be applicable to these non-compliance situations,
for the following reasons:
o the failure was not intentional or caused by DUSA's negligence,
o DUSA has taken adequate measures to meet permit conditions in a timely malrner or has
submitted to the Executive Secretary, for the Executive Secretary's approval, an adequate plan
and schedule for meeting permit conditions, as detailed below; and
o the provisions of UCA 19-5-107 have not been violated.
The following information is relevant:
The Mill's QA Manager noted in his follow-up conversation with the Mill's contract analytical
laboratory on July 2,2008 that two sets of samples received and accepted by the laboratory for the
'.,
JUL
Re:
o
second quarter of 2008 were above 4o C (but on ice) at the time of delivery to the lab. These two sets
(April and May accelerated samples from MW-l4,MW-26 and MW-32) were received at 5 o C for
April and 6 o C for May and were outside of the temperature specification at 4o C, as required by Part
I.E.4(b), Part II.A of the Permit, and Table 1 and Section 9.3(d) of the approved DUSA QAP. All
other samples sent to the laboratory in the second quarter of 2008 were within the 4o C requirement.
The samples sent to the laboratory were sent in 5-day coolers, as the use of these coolers had shown
demonstrated success subsequent to Denison's February 21,2008 correspondence with UDEQ, where
the coolers had been proposed for use in sample transport.
DUSA believes that the affirmative defense in Part I.G.3.c) of the Permit should be applicable to these
sample temperature non-compliance situations. The exceedance of temperature was unintentional and
not caused by DUSA's negligence. Mill personnel were following the procedures reported to UDEQ
on February 21,2008 and June 3, 2008 to avoid future sample temperature problems and the situation
had improved. With the exception of these two sets of samples, all samples sent to the laboratory in 5-
day coolers since February 21, 2008 have arrived at the laboratory at less than 4o C. The fact that
these two sets of samples did not meet the temperature specification, has prompted DUSA to further
study the matter to determine what further steps are required in order to ensure that the temperature
specification will be satisfied in all cases in the future. DUSA will also move up its sample dates to as
close to the beginning of each sample period as practicable, in order to allow for re-sampling within
the period, should the temperature specification prove to be violated in the future. As an initial step,
Mill personnel have been instructed to continue to use 5-day coolers for all future sample shipments
and are currently conducting a test run to lower further the temperature of samples during transport.
The test will include increasing coolant volume and/or decreasing the number of samples per cooler.
The test will not include actual samples. Once the test run is complete (and successful), and actual
samples have been sent to the laboratory, sample receipt temperature will be confirmed by the
laboratory and if the receipt temperature remains unacceptable a re-sample of the affected water
samples will be collected. DUSA is also reviewing transportation times and logistics from the Mill to
the laboratory, to ensure that the time between sample collection and receipt at the laboratory is kept to
a minimum, and is also considering other methods of cooling and transporting samples to the
laboratory that are available or that are being used successfully by other similar facilities. DUSA will
provide a follow up letter to the Executive Secretary after its completion of this review.
DUSA appreciates your consideration of this matter and if you should have any questions please
contact me or David Frydenlund.
Manager, Environmental Affairs
cc: Ron F. Hochstein
Harold R. Roberts
David C. Frydenlund
David E. Turk
DENI5OJ)I/
MINES