DRC-2017-003367 - 0901a068806f52d6

Energy Fuels Resources (USA) Inc.
225 Union Blvd. Suite 600
Lakewood, CO, US, 80228
303 974 2140
www.energvfuels.com
Div of Waste Management
May 3, 2017 and Radiation Control
VIA PDF AND OVERNIGHT DELIVERY MAY - 5 2017
Scott Anderson,
Director of Waste Management and Radiation Control
State of Utah Department of Environmental Quality
195 North 1950 West
P.O. Box 144880
Salt Lake City, UT 84114-4880
DRG-ZOIT- 003367
Re: State of Utah Ground Water Discharge Permit No. UGW370004
White Mesa Uranium Mill - Notice Pursuant to Part I.G.l (a)
Dear Mr. Anderson:
The White Mesa Mill (the “Mill”) performed first quarter (“Ql”) groundwater monitoring during the
period from January 1, to March 31, 2017 under the August 24, 2012 version of the Mill’s Groundwater
Discharge Permit (the “GWDP”). All analytical data needed for comparison to the GWCLs were
received during the period ending April 5, 2017.
Pursuant to Part I.G.l.a) of the GWDP, (August 24, 2012) please take notice that the concentrations of
specific constituents in the monitoring wells highlighted in yellow and bold italics in the columns'for this
quarter in the attached Table 1 exceeded their respective GWCLs. For ease of review, Table 1 has been
formatted to simplify the tracking of any continued exceedances from one monitoring period to the next
by charting ongoing monitoring of the same well in the same row, and by highlighting exceedances (in
color and bold italics).
Part LG. 1 c) of the GWDP states “that the Permittee shall prepare and submit within 30 calendar days to
the Executive Secretary a plan and a time schedule for assessment of the sources, extent and potential
dispersion of the contamination, and an evaluation of potential remedial action to restore and maintain
groundwater quality to ensure that Permit limits will not be exceeded at the compliance monitoring point
and that DMT or BAT will be reestablished.” The summary below relating to Ql 2017 exceedances
includes, for each exceedance, a brief discussion of whether such a plan and schedule is or is not required
or appropriate at this time in light of other actions currently being undertaken by Energy Fuels Resources
(USA) Inc. (“EFRI”) or in light of other reports submitted by EFRI, and as determined by Division of
Waste Management and Radiation Control (“DWMRC”) Staff. A description of the other actions and
reports which have affected the requirement to submit a plan and time schedule are as follows:
1. Nitrate + nitrite and chloride in monitoring wells at the site have been the subject of ongoing
investigations at the Mill. Based on the results of the previous investigations, EFRI and the
Director acknowledged that it has not been possible to date to determine the source(s), cause(s),
attribution, magnitudes of contribution, and proportion(s) of the local nitrate + nitrite and chloride
in groundwater. EFRI submitted a Corrective Action Plan (“CAP”) in February 2012 for nitrate
+ nitrite and chloride in groundwater. The CAP was approved on December 12, 2012 and the
activities associated with the CAP are on-going. Based on information provided by DWMRC in
teleconferences on April 27, and May 2, 2011, due to the ongoing activities and actions, the 30-
day plan and schedule for assessment is not required for nitrate + nitrite and chloride exceedances
at this time.
2. As discussed in previous quarterly groundwater sampling reports, the background levels and
GWCLs for pH were established based on eight or more quarters of laboratory data, which are
historically higher than field data. EFRFs letter to the Director dated January 31, 2011 proposed
the recalculation of the GWCLs for field pH. Following the statistical evaluation of pH data by
EFRFs geochemical consultant, INTERA, Inc., EFRI compared the Mill’s groundwater pH data
from Q2 2011 and noted that all of the June 2011 groundwater results, and many of the other
results from Q2 2011, were already outside the revised GWCLs that were to be proposed in the
June 30, 2011 letter. Pursuant to teleconferences with DWMRC on December 5, and December
19, 2011, EFRI submitted a Work Plan and Schedule on January 20, 2012 and a revised plan
based on DWMRC comments on April 13, 2012. Based on the approved Work Plan and Time
Schedule, EFRI and DWMRC entered into a Stipulated Consent Agreement (“SCA”) dated July
12, 2012. The SCA required the completion of the pH Report and the Pyrite Investigation and
associated report. The pH Report and Pyrite Investigation Report were submitted November 9,
2012 and December 7, 2012 respectively. By letter dated April 25, 2013, DWMRC accepted the
conclusions that the out-of-compliance results for pH are due to background effects within the
aquifer matrix and are not caused by Mill activities. DWMRC also approved the recalculation of
the GWCLs. As a result, the 30-day plan and schedule for assessment is not required for field pH
exceedances.
3. A Plan and Time Schedule will not be prepared for monitoring wells with two successive
exceedances if successive exceedances were reported in a previous quarter and were included in
the Source Assessment Reports (“SARs”), submitted October 10, 2012, May 8, 2013, August 30,
2013, December 17, 2013, January 13, 2014, March 19, 2014, December 9, 2015, and June 24,
2016 and the Plan and Time Schedules submitted December 4, 2014, September 10, 2015, and
December 3, 2015. A Plan and Time Schedule will not be submitted for those constituents
covered by the previously mentioned SARs, because the conclusions and actions delineated in
those reports were either accepted by DWMRC as documented in DWMRC correspondence
dated April 25, 2013, July 23, 2013, September 17, 2013 January 7, 2014, March 10, 2014, June
5, 2014, and February 19, 2016 respectively.
4. Chloroform and methylene chloride are the subject of the ongoing chloroform pumping program
and are covered by State of Utah Notice of Violation (“NOV”) and Groundwater Corrective
Action Order (“CAO”) State of Utah Department of Environmental Quality (“UDEQ”) Docket
No. UGW-20-01. As a result, the 30-day plan and schedule for assessment of chloroform and
methylene chloride exceedances is not required.
It is important to note that under the GWDP, GWCLs have been determined on a well-by-well basis to
reflect background groundwater quality, as defined by the mean plus second standard deviation
concentration, or the equivalent. Accordingly, the GWDP requires that constituent concentrations in each
monitoring well shall not exceed the GWCLs set out in Table 2 of the GWDP. It should be noted that,
because the GWCLs have been set at the mean plus second standard deviation, or the equivalent, un­
impacted groundwater would normally be expected to exceed the GWCLs approximately 2.5% of the
time. Therefore, exceedances are expected in approximately 2.5% of all sample results, and do not
necessarily represent impacts to groundwater from Mill operations. In fact, more frequent sampling of a
Letter to Mr. Scott Anderson
May 3, 2017
Page 2
given analyte will increase the number of exceedances due to statistical variation and not due to Mill
activity. Additionally, given the slow velocity of groundwater movement, accelerated sampling at a
monthly frequency can result in resampling of essentially the same water and can lead to repeat
exceedances for accelerated constituents not due to Mill activities, but due to repeat sampling of the same
water.
1.0 Exceedances in Required Quarterly Sampling Wells
1.1 Quarterly Wells with Two Successive Exceedances
As indicated in the attached Table 1, the analytes discussed below exceeded their respective GWCLs for
two successive sampling periods in Q1 2017. A 30-day plan and schedule contemplated in Part I.G.l c)
of the GWDP will not be required for the consecutive exceedances as noted below. One-time
exceedances and non-successive exceedances are noted on Table 1, but not listed below. Consecutive
exceedances which occurred in previous reporting periods are discussed in the SARs submitted October
10, 2012, May 8, 2013, August 30, 2013, December 17, 2013, January 13, 2014, March 19, 2014,
December 9, 2015, and June 24, 2016 and the Plan and Time Schedules submitted December 4, 2014, and
March 10, 2017.
MW-11
Letter to Mr. Scott Anderson
May 3,2017
Page 3
• Manganese concentrations exceeded the GWCL in MW-11 in all of the Q1 2017 sampling events.
This consecutive exceedance is addressed in the SAR, dated October 10, 2012. As a result of the
SAR, the GWCLs have been recalculated and accepted by DWMRC. The recalculated GWCLs
will become effective upon their publication in the next revision of the GWDP. As a result of
DWMRC’s acceptance of the recalculated GWCLs, a plan and schedule to address this
consecutive exceedance is not necessary and will not be submitted. Until such time as the new
GWCLs become effective, the exceedances will continue to be noted and reported.
MW-14
• Field pH has been slightly outside (slightly lower than) the GWCL in all of the Q1 2017 sampling
events. As mentioned above, site-wide pH issues and trends are addressed in reports submitted
on November 9, 2012 and December 7, 2012. As a result of the November 7, 2012 report, the
GWCLs have been recalculated and accepted by DWMRC. The recalculated GWCLs will
become effective upon their publication in the next revision of the GWDP. As a result of
DWMRC’s acceptance of the recalculated GWCLs, a plan and schedule to address this
consecutive exceedance is not necessary and will not be submitted. Until such time as the new
GWCLs become effective, the exceedances will continue to be noted and reported.
MW-25
• Field pH has been slightly outside (slightly lower than) the GWCL in the January and Q1 2017
(February) sampling events. As mentioned above, site-wide pH issues and trends are addressed
in reports submitted on November 9, 2012 and December 7, 2012. As a result of the November 7,
2012 report, the GWCLs have been recalculated and accepted by DWMRC. The recalculated
GWCLs will become effective upon their publication in the next revision of the GWDP. As a
result of DWMRC’s acceptance of the recalculated GWCLs, a plan and schedule to address this
consecutive exceedance is not necessary and will not be submitted. Until such time as the new
GWCLs become effective, the exceedances will continue to be noted and reported.
• Uranium concentrations exceeded the GWCL in MW-25 in the January and Q1 2017 (February)
sampling events. This consecutive exceedance is addressed in the SAR, dated October 10, 2012.
As a result of the SAR, the GWCLs have been recalculated and accepted by DRC. The
recalculated GWCLs will become effective upon their publication in the next revision of the
GWDP. As a result of DRC’s acceptance of the recalculated GWCLs, a plan and schedule to
address this consecutive exceedance is not necessary and will not be submitted. Until such time as
the new GWCLs become effective, the exceedances will continue to be noted and reported.
MW-26
Letter to Mr. Scott Anderson
May 3, 2017
Page 4
• Nitrate + nitrite has exceeded its GWCL in all of the Q1 2017 sampling events. As mentioned
above, a CAP has been submitted and approved and the specified actions are currently being
implemented; therefore a plan to address this consecutive exceedance is not necessary and is not
being submitted.
• Chloroform has exceeded its GWCL in all of the Q1 2017 sampling events. MW-26 is used as a
pumping well for the ongoing chloroform capture program and is expected to yield increased
concentrations of chloroform. Because this well is used in the chloroform capture program
which is the subject of separate investigations and actions, a plan and time schedule to address the
consecutive exceedances is not necessary and is not being submitted.
MW-26 Note: As stated in the September 2009 Statement of Basis (page 23) in support of the January
20, 2010 revisions to the GWDP, “[i]t should be noted that, because MW-26 is a pumping well for
chloroform removal, concentrations of all constituents in that well are subject to potential variation over
time as a result of the pumping activity. This will be taken into account by the Executive Secretary in
determining compliance for this well.” Based on information provided by DWMRC in teleconferences
on April 27, and May 2, 2011, due to the current pumping status as part of the chloroform investigation
program, the 30-day plan and schedule for assessment is not required at this time for exceedances of
chloroform and methylene chloride in MW-26.
• Field pH has been slightly outside (slightly lower than) the GWCL in all of the Q1 2017 sampling
events. As mentioned above, site-wide pH issues and trends are addressed in reports submitted
on November 9, 2012 and December 7, 2012. As a result of the November 7, 2012 report, the
GWCLs have been recalculated and accepted by DWMRC. The recalculated GWCLs will
become effective upon their publication in the next revision of the GWDP. As a result of
DWMRC’s acceptance of the recalculated GWCLs, a plan and schedule to address this
consecutive exceedance is not necessary and will not be submitted. Until such time as the new
GWCLs become effective, the exceedances will continue to be noted and reported.
• The chloride concentration exceeded its GWCL in the December 2016 and January 2017
sampling events. As mentioned above, a CAP has been submitted and approved to address
nitrate+nitrite contamination which is expected to address chloride in groundwater. The actions
specified in the CAP are currently being implemented; therefore a plan to address this
consecutive exceedance is not necessary and is not being submitted.
• The uranium concentration exceeded its GWCL in January monthly and Q1 2017 (February)
sampling events. This consecutive exceedance is addressed in the SAR, dated October 10, 2012.
As a result of the SAR, the GWCLs have been recalculated and accepted by DRC. The
recalculated GWCLs will become effective upon their publication in the next revision of the
GWDP. As a result of DRC’s acceptance of the recalculated GWCLs, a plan and schedule to
Letter to Mr. Scott Anderson
May 3, 2017
Page 5
address this consecutive exceedance is not necessary and will not be submitted. Until such time as
the new GWCLs become effective, the exceedances will continue to be noted and reported.
MW-30
• Nitrate + nitrite has exceeded its GWCL in all of the Q1 2017 sampling events. As mentioned
above, a CAP has been submitted and approved and the specified actions are currently being
implemented; therefore a plan to address this consecutive exceedance is not necessary and is not
being submitted.
• The chloride concentration exceeded its GWCL all of the Q1 2017 sampling events. As
mentioned above, a CAP has been submitted and approved to address nitrate+nitrite
contamination which is expected to address chloride in groundwater. The actions specified in the
CAP are currently being implemented; therefore a plan to address this consecutive exceedance is
not necessary and is not being submitted.
• The selenium concentration exceeded its GWCL in all of the Q1 2017 sampling events. This
consecutive exceedance is addressed in the SAR, dated October 10, 2012. As a result of the SAR,
the GWCLs have been recalculated and accepted by DWMRC. The recalculated GWCLs will
become effective upon their publication in the next revision of the GWDP. As a result of
DWMRC’s acceptance of the recalculated GWCLs, a plan and schedule to address this
consecutive exceedance is not necessary and will not be submitted. Until such time as the new
GWCLs become effective, the exceedances will continue to be noted and reported.
MW-31
• Nitrate + nitrite has exceeded its GWCL in all of the Q1 2017 sampling events. As mentioned
above, a CAP has been submitted and approved and the specified actions are currently being
implemented; therefore a plan to address this consecutive exceedance is not necessary and is not
being submitted.
• The chloride concentration exceeded its GWCL in all of the monitoring periods for Q1 2017. As
mentioned above, a CAP has been submitted and approved to address nitrate+nitrite
contamination which is expected to address chloride in groundwater. The actions specified in the
CAP are currently being implemented; therefore a plan to address this consecutive exceedance is
not necessary and is not being submitted.
• The sulfate concentration exceeded its GWCL in all of the Q1 2017 sampling events. This
consecutive exceedance is addressed in the revised SAR, dated December 9, 2015 and approved
by DWMRC on February 9, 2016. The sulfate exceedances were addressed in the December 9,
2015 SAR, but due to previously identified, naturally occurring, statistically significant rising
trends, has exceeded the recalculated GWCLs specified in the December 2015 SAR. As a result,
EFRI voluntarily submitted a Plan and Time Schedule for DWMRC approval on March 10, 2017
to evaluate the GWCLs based on the previously identified rising trend; therefore a plan to address
this consecutive exceedance is not necessary and is not being submitted.
• The selenium concentration exceeded its GWCL in all of the Q1 2017 sampling events. This
consecutive exceedance is addressed in the revised SAR, dated December 9, 2015 and approved
by DWMRC on February 9, 2016. The selenium exceedances were addressed in the December 9,
2015 SAR, but due to previously identified, naturally occurring, statistically significant rising
trends, has exceeded the recalculated GWCLs specified in the December 2015 SAR. As a result,
EFRI voluntarily submitted a Plan and Time Schedule for DWMRC approval on March 10, 2017
to evaluate the GWCLs based on the previously identified rising trend; therefore a plan to address
this consecutive exceedance is not necessary and is not being submitted.
• The Total Dissolved Solids (“TDS”) exceeded its GWCL in all of the Q1 2017 sampling events.
This consecutive exceedance is addressed in the revised SAR, dated December 9, 2015 and
approved by DWMRC on February 9, 2016. As a result of the SAR, the GWCLs have been
recalculated and accepted by DWMRC. The recalculated GWCLs will become effective upon
their publication in the next revision of the GWDP. As a result of DWMRC’s acceptance of the
recalculated GWCLs, a plan and schedule to address this consecutive exceedance is not necessary
and will not be submitted. Until such time as the new GWCLs become effective, the exceedances
will continue to be noted and reported.
• The uranium concentration exceeded the GWCL in MW-31 in the Q1 2017 (February) and March
monthly sampling events. This consecutive exceedance is addressed in Plan and Time Schedule
which was submitted to DWMRC on March 10, 2017. Therefore, a plan to address this
consecutive exceedance is not necessary and is not being submitted.
• Field pH has been slightly outside (slightly lower than) the GWCL in the Q1 2017 (February) and
March sampling events. As mentioned above, site-wide pH issues and trends are addressed in
reports submitted on November 9, 2012 and December 7, 2012. However, at the time of the
November 9, 2012 and December 7, 2012 reports, the pH in MW-31 was not below the GWCLs.
Due to the additional pH data available a plan and schedule for assessment will be submitted
under separate cover within 30 days of this Exceedance Notice. Additional constituents in MW-
31 may be assessed during the Plan and Time Schedule and SAR. It is important to note EFRI
requested removal of field pH from accelerated monitoring in MW-31 by letter dated February 9,
2015. DRC approved the removal of these constituents from monthly accelerated monitoring by
letter dated March 25, 2015. The sample results reported concentrations outside of the GWCLs.
MW-35
Letter to Mr. Scott Anderson .
May 3, 2017
Page 6
• The uranium concentration exceeded the GWCL in MW-35 in all of the Q1 2017 sampling
events. A plan and schedule to address this exceedance is not necessary and is not being
submitted because the exceedances are based on the interim GWCLs for MW-35, which have
been set at a fraction of the Groundwater Quality Standards. Background has been established
for MW-35 in the Background Report submitted to DWMRC on May 1, 2014. As a result of the
Background Report, the GWCLs have been calculated and accepted by DWMRC in a letter dated
July 15, 2014. The calculated GWCLs will become effective upon their publication in the next
revision of the GWDP. As a result of DWMRC’s acceptance of the calculated GWCLs, a plan
and schedule to address this consecutive exceedance is not necessary and will not be submitted.
Until such time as the new GWCLs become effective, the exceedances will continue to be noted
and reported. It should be noted that the exceedances of the interim GWCLs noted herein, do not
necessarily represent impacts to groundwater from Mill activities.
• Field pH has been slightly outside (slightly lower than) the GWCL in all of the Q1 2017 sampling
events. A plan and schedule to address this exceedance is not necessary and is not being
submitted because the exceedances are based on the interim GWCLs for MW-35, which have
been set at a fraction of the Groundwater Quality Standards. Background has been established
for MW-35 in the Background Report submitted to DWMRC on May 1, 2014. As a result of the
Background Report, the GWCLs have been calculated and accepted by DWMRC in a letter dated
July 15, 2014. The calculated GWCLs will become effective upon their publication in the next
revision of the GWDP. As a result of DWMRC’s acceptance of the calculated GWCLs, a plan
and schedule to address this consecutive exceedance is not necessary and will not be submitted.
Until such time as the new GWCLs become effective, the exceedances will continue to be noted
and reported. It should be noted that the exceedances of the interim GWCLs noted herein, do not
necessarily represent impacts to groundwater from Mill activities.
1.2 Quarterly Wells with New Exceedances Reported in Q1
No new exceedances for the quarterly wells were noted during Q1 2017.
2.0 Exceedances in Semiannual Sampling Wells Accelerated to Quarterly
2.1 Semi-annual Wells with Two Successive Exceedances
As indicated in the attached Table 1, the analytes discussed below exceeded their respective GWCLs for
two successive sampling periods (Q4 2016 and Q1 2017).
MW-1
Letter to Mr. Scott Anderson
May 3,2017
Page 7
• The chloride concentration exceeded its GWCL in Q4 2016 and Q1 2017. Based on information
provided by DWMRC in teleconferences on April 27, and May 2, 2011, due to the ongoing
activities and actions, the 30-day plan and schedule for assessment is not required for nitrate +
nitrite and chloride exceedances at this time. Additionally, in the October 10, 2012 SAR, EFRI
requested the removal of GWCLs for the far upgradient wells (MW-1, MW-18, and MW-19) at
the Mill which cannot be impacted by Mill activities. In correspondence dated April 25, 2013,
DWMRC noted “DWMRC agrees with the justification provided by EFR, that far upgradient
wells are not likely to be impacted by current Mill activities...” and has recommended the
removal of GWCLs for MW-1 from the next revision of the GWDP. A plan and schedule is not
necessary based on information provided by DWMRC in teleconferences on April 27, and May 2,
2011 and because the exceedance is not caused by Mill activities and was previously discussed in
the October 10, 2012 SAR. Until such time as the GWCLs are removed, the exceedances will
continue to be noted and reported.
• Field pH has been slightly outside (slightly lower than) the GWCL for both the Q4 2016 sampling
event and the Q1 2017 sampling event. This consecutive exceedance is addressed in the SAR,
dated October 10, 2012. In the October 10, 2012 SAR, EFRI requested the removal of GWCLs
for the far upgradient wells (MW-1, MW-18, and MW-19) at the Mill which cannot be impacted
by Mill activities. In correspondence dated April 25, 2013, DWMRC noted “DWMRC agrees
with the justification provided by EFR, that far upgradient wells are not likely to be impacted by
current Mill activities...” and has recommended the removal of GWCLs for MW-18 from the
next revision of the GWDP. A plan and schedule is not necessary because the exceedance is not
caused by Mill activities and was previously discussed in the October 10, 2012 SAR. Until such
time as the GWCLs are removed, the exceedances will continue to be noted and reported.
MW-12
• Selenium has exceeded the GWCL for both the Q4 2016 sampling event and the Q1 2017
sampling event. This consecutive exceedance is addressed in the SAR, dated October 10, 2012.
As a result of the SAR, the GWCLs have been recalculated and accepted by DWMRC. The
recalculated GWCLs will become effective upon their publication in the next revision of the
GWDP. As a result of DWMRRC’s acceptance of the recalculated GWCLs, a plan and schedule
Letter to Mr. Scott Anderson
May 3, 2017
Page 8
to address this consecutive exceedance is not necessary and will not be submitted. Until such time
as the new GWCLs become effective, the exceedances will continue to be noted and reported.
MW-18
• Thallium has exceeded the GWCL for both the Q4 2016 sampling event and the Q1 2017
sampling event. This consecutive exceedance is addressed in the SAR, dated October 10, 2012.
In the October 10, 2012 SAR, EFRI requested the removal of GWCLs for the far upgradient wells
(MW-1, MW-18, and MW-19) at the Mill which cannot be impacted by Mill activities. In
correspondence dated April 25, 2013, DWMRC noted “DWMRC agrees with the justification
provided by EFR, that far upgradient wells are not likely to be impacted by current Mill
activities...” and has recommended the removal of GWCLs for MW-18 from the next revision of
the GWDP. A plan and schedule is not necessary because the exceedance is not caused by Mill
activities and was previously discussed in the October 10, 2012 SAR. Until such time as the
GWCLs are removed, the exceedances will continue to be noted and reported.
MW-19
• Field pH has been slightly outside (slightly lower than) the GWCL for both the Q4 2016 sampling
event and the Q1 2017 sampling event. This consecutive exceedance is addressed in the SAR,
dated October 10, 2012. In the October 10, 2012 SAR, EFRI requested the removal of GWCLs
for the far upgradient wells (MW-1, MW-18, and MW-19) at the Mill which cannot be impacted
by Mill activities. In correspondence dated April 25, 2013, DWMRC noted “DWMRC agrees
with the justification provided by EFR, that far upgradient wells are not likely to be impacted by
current Mill activities...” and has recommended the removal of GWCLs for MW-18 from the
next revision of the GWDP. A plan and schedule is not necessary because the exceedance is not
caused by Mill activities and was previously discussed in the October 10, 2012 SAR. Until such
time as the GWCLs are removed, the exceedances will continue to be noted and reported.
MW-23
• Field pH has been slightly outside (slightly lower than) the GWCL for both the Q4 2016 sampling
event and the Q1 2017 sampling event. As mentioned above, site-wide pH issues and trends are
addressed in reports submitted on November 9, 2012 and December 7, 2012. As a result of the
November 7, 2012 report, the GWCLs have been recalculated and accepted by DWMRC. The
recalculated GWCLs will become effective upon their publication in the next revision of the
GWDP. As a result of DWMRC’s acceptance of the recalculated GWCLs, a plan and schedule to
address this consecutive exceedance is not necessary and will not be submitted. Until such time as
the new GWCLs become effective, the exceedances will continue to be noted and reported.
MW-24
• Thallium has exceeded the GWCL for both the Q4 2016 sampling event and the Q1 2017
sampling event. This consecutive exceedance is addressed in SARs, dated October 10, 2012 and
June 24, 2016. As a result of the SARs, the GWCLs have been recalculated and accepted by
DWMRC. The recalculated GWCLs will become effective upon their publication in the next
revision of the GWDP. As a result of DWMRC’s acceptance of the recalculated GWCLs, a plan
and schedule to address this consecutive exceedance is not necessary and will not be submitted.
Until such time as the new GWCLs become effective, the exceedances will continue to be noted
and reported.
• Field pH has been slightly outside (slightly lower than) the GWCL for both the Q4 2016 sampling
event and the Q1 2017 sampling event. This consecutive exceedance is addressed in SARs, dated
October 10, 2012 and June 24, 2016. As a result of the SARs, the GWCLs have been recalculated
and accepted by DWMRC. The recalculated GWCLs will become effective upon their
publication in the next revision of the GWDP. As a result of DWMRC’s acceptance of the
recalculated GWCLs, a plan and schedule to address this consecutive exceedance is not necessary
and will not be submitted. Until such time as the new GWCLs become effective, the exceedances
will continue to be noted and reported.
MW-27
Letter to Mr. Scott Anderson
May 3, 2017
Page 9
• The chloride concentration exceeded its GWCL for both the Q4 2016 sampling event and the Q1
2017 sampling events. As mentioned above, a CAP has been submitted and approved to address
nitrate+nitrite contamination which is expected to address chloride in groundwater. The actions
specified in the CAP are currently being implemented; therefore a plan to address this
consecutive exceedance is not necessary and is not being submitted.
• The nitrate+nitrite concentration exceeded its GWCL for both the Q4 2016 sampling event and
the Q1 2017 sampling events. As mentioned above, a CAP has been submitted and approved to
address nitrate+nitrite contamination which is expected to address chloride in groundwater. The
actions specified in the CAP are currently being implemented; therefore a plan to address this
consecutive exceedance is not necessary and is not being submitted.
MW-28
• Chloride has exceeded the GWCL for both the Q4 2016 sampling event and the Q1 2017
sampling event and during previous quarters. As mentioned above, a CAP has been submitted and
approved and the specified actions are currently being implemented; therefore a plan to address
this consecutive exceedance is not necessary and is not being submitted.
MW-32
• Field pH has been slightly outside (slightly lower than) the GWCL for both the Q4 2016 sampling
event and the Q1 2017 sampling event. As mentioned above, site-wide pH issues and trends are
addressed in reports submitted on November 9, 2012 and December 7, 2012. As a result of the
November 7, 2012 report, the GWCLs have been recalculated and accepted by DWMRC. The
recalculated GWCLs will become effective upon their publication in the next revision of the
GWDP. As a result of DWMRC’s acceptance of the recalculated GWCLs, a plan and schedule to
address this consecutive exceedance is not necessary and will not be submitted. Until such time as
the new GWCLs become effective, the exceedances will continue to be noted and reported.
• Chloride has exceeded the GWCL for both the Q4 2016 sampling event and the Q1 2017
sampling event and during previous quarters. As mentioned above, a CAP has been submitted and
approved and the specified actions are currently being implemented; therefore a plan to address
this consecutive exceedance is not necessary and is not being submitted.
2.1 Semi-annual Wells with New Exceedances Reported in Q1
One new single exceedance for the Q1 2017 semi-annual well sampling program is listed below.
• Field pH in MW-5 was slightly below the GWCL in the Q1 sampling event.
Relative to accelerated reporting requirements, based on phone conversations with DWMRC on April 5,
2010, reporting of exceedances is required to be completed within 30 days of receipt of the last data
package for a quarterly monitoring event. Similarly, accelerated monitoring is required to commence the
month following the submission of the Exceedance Notice for a specified quarter for wells that are being
accelerated from quarterly to monthly and the quarter following the submission of the Exceedance Notice
for wells that are being accelerated from semiannually to quarterly. Per teleconferences with DWMRC,
EFRI proposed modified language for the GWDP, Part l.G.l on May 25, 2012, to document DWMRC
concurrence with the accelerated reporting and monitoring agreements resulting from the April 5, 2012
teleconference.
Letter to Mr. Scott Anderson
May 3,2017
Page 10
ENERGY FUELS RESOURCES (USA) INC.
Kathy Weinel
Quality Assurance Manager
cc:David Frydenlund
Mark Chalmers
David Turk
Logan Shumway
Scott Bakken
~Q2Z010 Table 1 -^WC^XCTedan^forFiretOuartei^7 under the August 24, 2012 GVVDP
04 2010 Results
Monitoring Well
(Water Class)Constituent Exceeding CWCL GWCL in August
24, 2012 GWDP
Q1 2010
Sample Date Q1 2010 Result Q2 2010 Sample
Date
Q2 2010
Result
May 2010
Monthly
Sample Date
May 2010
Monthly
Result
June 2010
Monthly
Sample Date
June 2010
Monthly
Result
July 2010
Monthly
Sample Date
July 2010
Monthly
Result
August 2010
Monthly Sample
Date
August 2010
Monthly Result
Q3 2010
Sample Date
Q3 2010
Result
October 2010
Monthly Sample
Date
October
2010
Monthly
Result
Q4 2010
Sample Date
Q4 2010
Result
December 2010
Monthly Sample
Date
December 2010
Monthly Result
__________________
Required Quarterly Sampling Wefti
MW-11 (Class II)Manganese (ug/L)131.29 2/10/2010 134 4/28/2010 137 5/24/2010 122 6/16/2010 99 7/20/2010 123 8/25/2010 138 9/8/2010 128 10/20/2010 141 11/11/2010 133 12/15/10 158
MW-14 (Class III)Field pH (S.U.)6.5 - 8.5 2/2/2010 6.45 4/21/2010 6.29 5/21/2010 6.36 6/16/2010 6.45 7/20/2010 7.19 8/25/2010 6.48 9/8/2010 6.51 10/20/2010 6.60 11/10/2010 6.37 12/15/2010 6.47
MW-25 (Class III)
Field pH (S.U.)6.5 - 8.5 6.53 7.2 NA
NS
NA
NS
NA
NS
NA
9/8/2010
6.58
NS
NA
11/10/2010 !
6.36
NS
NA
Cadmium (ug/L)1.5 2/3/2010 1.26 4/28/2010 1.44 NS NA NA NA NA 1.4 NA 1.26 NA
Uranium (ug/L)6.5 5.93 6.43 NA NA NA NA 6.57 NA 5.89 NA
Nitrate + Nitrite (as N) (mg/L)0.62 U 2 0.3 0.4 0.6 0.6 0.7 0.4 0.2 0.4
Uranium (ug/L)41.8 58.7 66.7 37.4 36.6 34.4 71.8 72.7 37.5 30.4 29.6
Chloroform (ug/L)70 7(H)17(H)8(H)940 9(H)28(H)2100 1(HH)1900 14(H)
MW-26 (Class III)Chloride (mg/L)58.31 2/2/2010 72 4/22/2010 57 5/21/2010 80 6/16/2010 47 7/21/2010 52 8/16/2010 49 9/26/2010 64 10/20/2010 52 11/15/2010 48 12/15/2010 52
Field pH (S.U.)6.74 - 8.5 6.59 7.18 6.36 6.98 6.45 6.39 6.60 6.61 6.49 6.45
Methylene Chloride (ug/L)5 1 9.9 NR 2.2 12 24 45 5.5 16 1.2
Nitrate + Nitrite (as N) (mg/L)2.5 16.1 15.8 17 15.3 7/21/2010 16 8/24/2010 16 15 15 IS 16
Chloride (mg/L)128 127 97 NA NA NS NA NS NA 111 NA 126 NA
Uranium (ug/L)8.32 6.82 6.82 NA NA NS NA NS NA 9/14/2010 7.10 NA 6.64 NA
MW-30 (Class II)
Field pH (S.U.)6.5 - 8.5
2/9/2010
6.81
4/27/2010
6.55
5/21/2010
6.62
6/15/2010
7.47 7/21/2010
7/27/2010 6.80 (6.82)8/24/2010 6.73 9/21/2010 6.80 (6.84)
10/19/2010
6.77
11/9/2010 i
6.75
12/14/2010
6.65
Fluoride (mg/L)0.51 0.35 0.35 NA NA NS NA NS NA 0.36 NA 0.36 NA
Selenium (ug/L)34 32 35.3 NA NA 7/27/2010 33.5 8/24/2010 35.6 32.6 32.4 32.2 30.5
Nitrate + Nitrite (as N) (mg/L)5 21.7 22.5 5/21/2010 23 6/15/2010 21.1 7/21/2010 20 8/24/2010 22 21 10/19/2010 20 20 20
TDS (mg/L)1320 1150 1220 NS NA NS NA NS NA NS NA 1330 NS NA 1320 NS
Chloride (mg/L)143 128 128 NS NA NS NA NS NA NS NA
9/13/2010
(9/21/10)
139 NS NA 138 NS
MW-31 (Class III)Selenium (ug/L)71 2/9/2010 60.8 4/20/2010 59.6 NS NA NS NA NS NA NS NA 64.4 NS NA 11/9/2010 !60 12/14/2010 NS
Field pH (S.U.)6.5 - 8.5 6.96 7.38 5/21/2010 6.95 6/15/2010 7.01 7/21/2010 7.80 8/24/2010 7.10 7.66 (7.13)10/19/2010 6.92 6.98 6.95
Uranium (ug/L)9.1 7.12 6.74 NS NA NS NA NS NA NS NA 7.23 NS NA 6.72 NS
Sulfate (mg/L)532 507 522 NS NA NS NA NS NA NS NA 527 NS NA 539 NS
Manganese (ug/L) 200 NA NA NA NA NA NA NA NA 698 NA
Gross Alpha minus Rn & U
(pCi/L)3.75 NA NA NA NA NA NA NA NA 2.6 NA
MW-35 (Class II)Field pH (S.U.)6.5 - 8.5 NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA 11/30/2010 7.46 NS NA
Selenium (ug/L)12.5 NA NA NA NA NA NA NA NA ND NA
Uranium (ug/L)7.5 NA NA NA NA NA NA NA NA 27.2 NA
L_Required Semi-Aunuid Sampling Weds
Chloride (mg/L)22.1 NA 18 NA NA NA NA NA NA 15 NA
MW-01 (Class II)Field pH (S.U.)6.77 - 8.5 NS NA 5/5/2010 7.86 (6.87)NS NA NS NA NS NA NS NA NS NA NS NA 11/8/2010 6.96 NS NA
Sulfate (mg/L)838 NA 805 NA NA NA NA NA NA 792 NA
MW-3A (Class III)Field pH (S.U.)6.5 - 8.5
NS
NA
5/4/2010
6.23 (6.24)
NS
NA
NS
NA
NS
NA
NS
NA
9/21/2010
6.42
NS
NA
11/22/2010
6.21
NS
NA
Sulfate (mg/L)3640 NA 3680 NA NA NA NA 3630 NA 3850 NA
Selenium (ug/L)89 NA 81.4 NA NA NA NA NS NA 94.8 NA
MW-05 (Class II)Field pH (S.U.)6.5 - 8.5 NS NA 7.15 NS M A MC M A MC M A NS NA NS NA NS NA 11/11/2010 7.31 NS NAUranium (ug/L)7.5 NA 0.39 INA INo INA INcS INA 11.6
Selenium (ug/L)25 NS NA 25.7 NA NA NA NA 31.9 NA 27.6 NA
MW-12 (Class III)
Field pH (S.U.)6.5 - 8.5 NS NA 4/27/2010 7.16 NS NA NS NA NS NA NS NA
9/20/2010
6.62
NS
NA
11/19/2010
6.47
NS
NA
MW 1 S TITt Selenium (ug/L)128.7 MC NA A/*) 1 /OA 1 A 100 MC NA MC NA NA MC NA NS NA MC NA i i/i mom 99.5 NS NAIVlVV-lj ^V^IdSS lilj Field pH (S.U.)6.62 - 8.5 IN5 NA 4/Zl/ZUlU 6.98 IN5 NA NA NS NA IN j NA NA INo NA 11/ 1 1/ZU1U 6.57 NA
Q1 2010 Results 02 2010 Results Q3 2010 Results Q4 2010 Results
Monitoring Well
(Water Class)Constituent Exceeding GWCL GWCL in Current
GWDP
Q1 Sample
Date Q1 Result Q2 Sample Date Q2 Result May Monthly
Sample Date
May Monthly
Result
June Monthly
Sample Date
June
Monthly
Result
July Monthly-
Sample Date
July Monthly
Result
August Monthly
Sample Date
August
Monthly Result
Q3 Sample
Date Q3 Result October Monthly
Sample Date
October
Monthly
Result
Q4 Sample
Date Q4 Result
December
Monthly Sample
Date
December
Monthly Result
Required Semi-Annual Sanipling Wells, con tinned
MW-18 (Class III)
Thallium (ug/1) 1.95 NA 3.73 NA
NS
NA
NS
NA
NS
NA 3.64
NS
NA 3.57
NS
NA
Sulfate (mg/L)1938.9 NA 1950 NA NA NA NA 1930 NA 1910 NA
Field pH (S.U.)6.25-8.5 NS NA 5/4/2010 6.2 NS NA NA NA NA
9/15/2010 7.23 NA 11/18/2010 6.31 NA
TDS (mg/L)3198.77 NA 3280 NA NA NA NA 3190 NA 3030 NA
MW-19 (Class 01)Field pH (S.U.)6.78-8.5
NS
NA
5/4/2010
6.61 (6.66)
NS
NA
NS
NA
NS
NA
NS
NA
9/15/2010
6.93
NS
NA
11/18/2010
6.8
NS
NA
Nitrate + Nitrite (as N) (mg/L)2.83 NA 2.6 NA NA NA NA NA NA 2.4 NA
MW-23 (Class III)Field pH (S.U.)6.5 - 8.5 NS NA 4/22/2010 6.18 NS NA NS NA NS NA NS NA 9/14/2010 7.05 NS NA 11/22/2010 6.44 NS NA
MW-24 (Class 01)
Cadmium (ug/L)2.5 NA 4.28 NA
NS
NA
NS
NA
NS
NA 5.06
NS
NA 3.22
NS
NA
Fluoride (mg/L) 0.36 NA 0.14 NA NA NA NA NA NA 0.18 NA
Sulfate (mg/L)2903 NS NA 5/6/2010 2560 NS NA NA NA NA 9/21/2010 NA NA 11/17/2010 2760 NA
Thallium (ug/L)1 NA 1.3 NA NA NA NA 1.57 NA 1.09 NA
Field pH (S.U.)6.5 - 8.5 NA 5.91 (5.78)NA NA NA NA 6.64 NA 6.1 NA
MW-27 (Class 10)
Nitrate + Nitrite (as N) (mg/L)5.6 NA 5.8 NA
NS
NA
NS
NA
NS
NA 5.9
NS
NA 5.7
NS
NA
Chloride (mg/L)38 NS NA 5/3/2010 42 NS NA NA NA NA 9/14/2010 42 NA 11/12/2010 45 NA
Field pH (S.U.)6.5 - 8.5 NA 6.78 NA NA NA NA 7.68 NA 6.84 NA
TDS (mg/L)1075 NA 1160 NA NA NA NA 1060 NA 1110 NA
MW-28 (Class 01)
Chloride (mg/L)105 NA 108 NA
NS
NA
NS
NA
NS
NA 106
NS
NA 107
NS
NA
Cadmium (ug/L)5.2 NA 4.20
NS
NA NA NA NA NA NA 4.11 NA
Uranium (ug/L)4.9 NS NA 4/19/2010 3.36 NA NA NA NA 9/14/2010 NA NA 11/12/2010 3.45 NA
Vanadium (ug/L)30 NA <15.0 NA NA NA NA NA NA <15.0 NA
Field pH (S.U.)6.1 -8.5 NA 5.67 NA NA NA NA 5.91 NA 5.72 NA
MW-29 (Class III)
TDS (mg/L)4400 NA 4400 NA
NS
NA
NS
NA
NS
NA NA
NS
NA 4390
NS
NA
Sulfate (mg/L) 2946 NS NA 4/27/2010 2770 NS NA NA NA NA NS NA NA 11/9/2010 2690 NA
Field pH (S.U.)6.46 - 8.5 NA 6.82 NA NA NA NA NA NA 6.17 NA
Chloride (mg/L)35.39 NA 30 NA NA NA NA NA NA 35 NA
MW-32 (Class III)Sulfate (mg/L)2556.70 NS NA 4/20/2010 2390 NS NA NS NA NS NA NS NA 9/13/2010 NA NS NA 11/10/2010 2330 NS NA
Field pH (S.U.)6.4 - 8.5 NA 6.03 NA NA NA NA 6.33 NA 6.05 NA
Notes:
GWCL values are taken from August 24. 2012 version of GWDP.
NS = Not Required and Not Sampled
i>iv = ivcquucu diiu
NA^rsur—1
Exceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
Table 1 - GWCL Exceedances for First Quarter 2017 under the August 24, 2012 GWDP
Q1 2011 Results Q2 2011 Results Q3 2011 Results Q4 2011 Results
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in
August 24,
2012 GWDP
January 2011
Monthly
Sample Date
January 2011
Monthly
Sample Result
Q12011
Sample
Date
Q1 2011
Result
March 2011
Monthly
Sample Date
March 2011
Monthly
Result
Q2 2011
Sample
Date
Q2 2011
Result
May 2011
Monthly
Sample Date
May 2011
Monthly
Result
June 2011
Monthly
Sample Date
June 2011
Monthly Result
July 2011
Monthly
Sample Date
July 2011
Monthly
Result
Q3 2011
Sample
Date
Q3 2011
Result
September 2011
Monthly Sample
Date
September 2011
Monthly Result
Q4 2011
Sample Date
Q4 2011
Result
November
2011 Monthly
Sample Date
November 2011
Monthly Result
December 2011
Monthly Sample
Date
December 2011
Monthly Result
Required Quarterly Sampling Wells
MW-11 (Class II)Manganese (ug/L)131.29 1/11/2011 121 2/2/2011 145 3/15/2011 68 4/4/2011 148 5/10/2011 170 6/15/2011 121 7/6/2011 151 118 9/7/2011 106 10/4/2011 112 11/9/2011 105 12/14/2011 100
MW-14 (Class HI)Field pH (S.U.)6.5 - 8.5 1/11/2011 6.37 2/7/2011 6.22 3/14/2011 6.76 4/4/2011 6.63 5/10/2011 6.37 6/15/2011 5.83 7/5/2011 6.4 8/3/2011 6.23 (6.41)9/8/2011 6.50 10/4/2011 6.71 (6.82)11/9/2011 6.63 12/12/2011 6.84
MW-25 (Class III)
Field pH (S.U.)6.5 - 8.5
1/11/2011
6.44
2/2/2011
6.66
3/15/2011
6.79
4/4/2011
6.7
5/11/2011
6.1
6/20/2011
5.77
7/6/2011
6.29 8/3/2011
8/30/11 6.42 (6.54)
9/7/2011
6.54
10/4/2011
6.6
11/9/2011
6.51
12/12/2011
6.87
Cadmium (ug/L)1.5 NA 1.34 NA 1.27 NA NA NA 8/30/2012 1.19 NA 1.27 NA NA
Uranium (ug/L) 6.5 7.02 4.77 6.8 5.56 6.72 7.06 6.74 6.37 5.96 5.27 6.56 6.1
MW-26 (Class HI)
Nitrate + Nitrite (as N) (mg/L)0.62
1/12/2011
0.2 0.25
3/15/2011
0.6 0.8 0.4
6/20/2011
0.3
7/6/2011
0.9
8/3/2011
8/30/11
0.6
9/7/2011
2.4
10/12/2011
0.9
11/9/2011
1.3
12/14/2011
2.3
Uranium (ug/L)41.8 32 69.3 31.8 60.2 57.4 18.5 57.1 19.0 56.1 58.9 55.6 57
Chloroform (ug/L)70 800 730 1200 390 1900 730 300 1000 1300 440 1200 1400
Chloride (mg/L)58.31 52 2/16/2011 59 64 4/1/2011 64 5/10/2011 54 39 64 60 66 61 55 62
Field pH (S.U.)6.74 - 8.5 6.83 6.06 6.89 6.22 6.43 6.52 6.35 6.07(6.58)6.71 6.82 6.75 7.1
Methylene Chloride (ug/L)5 <1.0 10 14 3.1 20 7 2.4 10 7.9 2.6 8.9 11
MW-30 (Class II)
Nitrate + Nitrite (as N) (mg/L)2.5
1/10/2011
15 16
3/14/2011
17 16 16
6/20/2011
17
7/5/2011
17
8/3/2011
14
9/7/2011
16
10/4/2011
11/29/2011
16
11/8/2011
16
12/12/2011
16
Chloride (mg/L)128 NA 134 NA 134 128 127 127 126 145 129 122 124
Uranium (ug/L)8.32 NA 5.97 NA 6.49 NA NA NA 8 NA 9.83 NA NA
Field pH (S.U.)6.5 - 8.5 6.65 2/1/2011 6.96 7.10
4/11/2011
6.83
5/10/2011
6.70 5.66 6.65 6.61 6.80 6.96 (6.73)6.83 7.14
Fluoride (mg/L)0.51 NA 0.34 NA 0.34 NA NA NA 0.33 NA 0.37 NA NA
Selenium (ug/L)34 36.2 34.7 34 44.4 38.3 38.7 32.4 39.7 32.4 36.6 36.8 38
MW-31 (Class ffl)
Nitrate + Nitrite (as N) (mg/L)5
1/10/2011
19 21
3/14/2011
22 21 20
6/20/2011
22
7/5/2011
22
8/2/2011
20
9/6/2011
21
10/3/2011
21
11/8/2011(11/29/12)
21
12/12/2011
21
TDS (mg/L)1320 1240 1220 1250 1370 1290 1330 1280 1300 1300 1320 1290 1330
Chloride (mg/L)143 NS 145 NA 143 143 145 148 148 148 145 145 148
Selenium (ug/L)71 NS 2/1/2011 64.6 NA 4/1/2011 65.2 5/10/2011 NS NS NS 66.2 NS 68.8 NS NS
Field pH (S.U.)6.5 - 8.5 6.65 7.21 7.43 7.01 6.73 6.16!6.64 6.67 7.03 7.28 7.01 (7.34)7.46
Uranium (ug/L)9.1 NS 5.77 NS 6.81 NS NS NS 7.68 NS 8.87 NS NS
Sulfate (mg/L)532 NS 538 531 503 512 540 532 537 541 539 552 530
MW-35 (Class II)
Manganese (ug/L)200
NS
NA 248
NS
NA 369 NA
NS
NA
7/20/11
348
8/30/2011
267
9/7/11
270
10/3/11
271
11/8/2011
283
12/14/11
247
Gross Alpha minus Rn & U
(pCi/L)3.75 NA 2.6 NA 3.7 NA NA NA 4.5 NA 4.4 4.7 4.2
Field pH (S.U.)6.5 - 8.5 NA 2/15/2011 7.17 NA
6/7/2011 7.31 NS NA NA 6.49 6.40 6.47 6.59 6.51 6.90
Selenium (ug/L)12.5 NA ND NA ND NA NA NA 9.3 NA 10.5 NA NA
Uranium (ug/L)7.5 NA 12.7 NA 21.7 NA NA 24.2 18.3 22.3 20.1 24 23.6
Required Semi-Annual Sampling Wells
Chloride (mg/L)22.1 NA NA NA 18 NA NA NA NA NA 17 NA NA
MW-01 (Class II)Field pH (S.U.)6.77 - 8.5 NS NA NS NA NS NA 4/11/2011 7.06 (7.67)NS NA NS NA NS NA NS NA NS NA 10/11/2011 7.08(7.51)NS NA NS NA
Sulfate (mg/L)838 NA NA NA 704 NA NA NA NA NA 713 NA NA
MW-03A (Class III)
Field pH (S.U.)6.5 - 8.5
NS
NA
2/16/2011
6.05
NS
NA
4/13/2011
6.58
NS
NA
NS
NA
NS
NA
8/11/2011
6.19
NS
NA
10/11/2011
6.5 (6.92)
NS
NA
NS
NA
Sulfate (mg/L)3640 NA 3730 NA 3350 NA NA NA 3560 NA 3750 NA NA
Selenium (ug/L)89 NA 99 NA 85.8 NA NA NA 88.5 NA 95 NA NA
MW-05 (Class II)Field pH (S.U.)6.5 - 8.5 NS NA 2/14/2011 7.31 KJC NA 4/12/2011 7.79 NS NA NS NA NS NA 8/9/2011 7.22 NS NA 10/10/2011
7.41 NS NA NS NA
Uranium (ug/L)7.5 29.5 1*10 7.16 1*0 1*/A i*IN/\0.5 4.52
INo IN/\INo IN/\
Selenium (ug/L)25 NA 39.0 NA 21.7 NA NA NA 25.4 NA 35.4 NA NA
MW-12 (Class UI)Field pH (S.U.)6.5 - 8.5 NS
NA
2/15/2011
6.43
NS
NA
4/5/2011
6.67
NS
NA
NS
NA
NS
NA
8/9/2011
6.13
NS NA 10/6/2011 6.7 (6.97)NS
NA
NS
NA
MW-15 /Class TIL Selenium (ug/L)128.7 MC NA KTC NA KTC NA 4/19/901 1 116 NS NA NS NA NS NA NS NA NS NA 10/10/9011 112 NS NA NS NA
1*1 **1 V V-Idoo Illy Field pH (S.U.)6.62 - 8.5 NA INo NA INO NA ‘4/ 1Z/ Z\) 11 6.88 1*0 NA INo NA INo NA INo NA INo NA IU/1U/ ZU11 6.70 INo NA INo NA
Q1 2011 Results Q2 2011 Results 03 2011 Results Q4 2011 Results
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in
Current
GWDP
January 2011
Monthly
Sample Date
January 2011
Monthly
Sample Result
Q1 2011
Sample
Date
Q12011
Result
March 2011
Monthly
Sample Date
March 2011
Monthly
Result
Q2 2011
Sample
Date
Q2 2011
Result
May 2011
Monthly
Sample Date
May 2011
Monthly
Result
June 2011
Monthly
Sample Date
June 2011
Monthly Result
July 2011
Monthly
Sample Date
July 2011
Monthly
Result
Q3 2011
Sample
Date
Q3 2011
Result
September 2011
Monthly Sample
Date
September 2011
.Monthly Result
Q4 2011
Sample Date
Q4 2011
Result
November
2011 Monthly
Sample Date
November 2011
Monthly Result
December 2011
Monthly Sample
Date
December 2011
Monthly Result
Wells, continued
MW-18 (Class III)
Thallium (ug/1)1.95 NA 3.49
NS
NA
4/6/2011
3.74
NS
NA
NS
NA
NS
NA
8/10/2011
9/21/11
4.0 3.39 NA
10/11/2011
3.83 NA
NS
NA
Sulfate (mg/L)1938.9 NA 1770 NA 1780 NA NA NA 1910 NA 2020 NA NA
Field pH (S.U.) 6.25-8.5
NS NA 2/15/2011 6.27 NA 6.71 NA NA NA 5.95 (6.30)NS NA 6.55 (6.63)NS NA NA
TDS (mg/L)3198.77 NA 3250 NA 3250 NA NA NA 3190 NA 3220 NA NA
MW-19 (Class HI)Field pH (S.U.)6.78-8.5
NS
NA
2/21/2011
6.78
NS
NA
4/5/2011
7.03
NS
NA
NS
NA
NS
NA
7/20/3011
6.65
NS
NA
10/12/2011
6.88 (7.02)
NS
NA
NS
NA
Nitrate + Nitrite (as N) (mg/L)2.83 NA NS NA 2.6 NA NA NA NS NA 4.0 NA NA
MW-23 (Class III)Field pH (S.U.)6.5 - 8.5 NS NA 2/9/2011 6.13 NS NA 4/5/2011 7.14 NS NA NS NA NS NA 8/4/2011 6.38 NS NA 10/6/2011 6.56 (6.77)NS NA NS NA
MW-24 (Class HI)
Cadmium (ug/L)2.5
NS
NA 2.78
NS
NA
4/5/2011
2.61
NS
NA
NS
NA
NS
NA
8/4/2011
1.46 NA
10/11/2011
1.78 NA
NS
NA
Fluoride (mg/L)0.36 NA NA NA 0.19 NA NA NA NA NA 0.36 NA NA
Sulfate (mg/L)2903 NA 2/10/2011 NA NA 2560 NA NA NA NA NS NA 2500 NS NA NA
Thallium (ug/L)1 NA 1.42 NA 1.07 NA NA NA <0.50 NA 0.62 NA NA
Field pH (S.U.)6.5 - 8.5 NA 5.73 NA 6.12 NA NA NA 6.45 NA 6.44 NA NA
MW-27 (Class III)
Nitrate + Nitrite (as N) (mg/L)5.6
NS
NA 6
NS
NA
4/5/2011
6.4
NS
NA
NS
NA
NS
NA
8/8/2011
6
NS
NA
10/5/2011
6.3 NA NA
Chloride (mg/L)38 NA 2/9/2011 46 NA 43 NA NA NA 43 NA 44 NS NA NS NA
Field pH (S.U.)6.5 - 8.5 NA 6.71 NA 6.79 NA NA NA 6.39 NA 7.17 NA NA
TDS (mg/L)1075 NA 1090 NA 1190 NA NA NA 1090 NA 1110 NA NA
MW-28 (Class HI)
Chloride (mg/L)105
NS
NA 114
NS
NA
4/11/2011
109
NS
NA
NS
NA
NS
NA
8/8/2011
105
NS
NA
10/5/2011
143 NA
NS
NA
Cadmium (ug/L)5.2 NA NA NA 4.13 NA NA NA NA NA 3.99 NA NA
Uranium (ug/L)4.9 NA 2/14/2011 NA NA 3.29 NA NA NA NA NA 3.19 NS NA NA
Vanadium (ug/L)30 NA NA NA <15.0 NA NA NA NA NA <15.0 NA NA
Field pH (S.U.)6.1 -8.5 NA 5.69 NA 6.01 NA NA NA 5.78 NA 6.07 (6.11)NA NA
MW-29 (Class III)
TDS (mg/L)4400
NS
NA NA
NS
NA 4080
NS
NA
NS
NA
NS
NA
8/9/2011
NA
NS
NA
10/5/2011
4280 NA
NS
NA
Sulfate (mg/L)2946 NA NS NA NA 4/18/2011 2600 NA NA NA NA NA 2850 NS NA NA
Field pH (S.U.)6.46 - 8.5 NA NA NA 6.45 NA NA NA 6.20 NA 6.52 NA NA
Chloride (mg/L)35.39 NA NA NA 33 NA NA NA NA NA 34 NA NA
MW-32 (Class HI)Sulfate (mg/L)2556.70 NS NA 2/9/2011 NA NS NA 4/1/2011 2180 NS NA NS NA NS NA 8/2/2011 NA NS NA 10/3/2011 2370 NS NA NS NA
Field pH (S.U.)6.4 - 8.5 NA 5.99 NA 6.14 NA NA NA
8/30/11
6.10(6.20)NA 6.35 NA NA
Notes:
GWCL values are taken from August 24, 2012 version of GWDP.
NS = Not Required and Not Sampled
I'tlX = I\.C4U11CU <11 Hi INUl
NA = Not Applicable
Exceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
Table 1 - GWCL Exceedances for First Quarter 2017 under the August 24, 2012 GWDP
Q1 2012 Results Q2 2012 R•suits Q3 2012 Results 04 2012 Results
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in
August 24.
2012 GWDP
January 2012
Monthly
Sample Date
January 2012
Monthly Result
Q1 2012
Sample Date
Q1 2012
Result
March 2012
Monthly Sample
Date
March 2012
Monthly Result
April 2012
Monthly
Sample Date
April 2012
Monthly Result
Q2 2012
Sample Date
Q2 2012
Result
June 2012
Monthly
Sample Date
June 2012
Monthly
Result
Q3 2012
Sample
Date
Q3 2012
Result
August 2012
Monthly
Sample Date
August 2012
Monthly
Result
September 2012
Monthly Sample
Date Monthly Result
October 2012
Monthly
Sample Date
October 2012
Monthly
Result
Q4 2012
Sample Date
Q4 2012
Result
December 2012
Monthly Sample
Date
December 2012
Monthly Result
Required Quarteriy Sampling Wells
MW-11 (Class II)Manganese (ug/L)131.29 1/26/2012 102 2/13/2012 154 3/13/2012 121 4/10/2012 132 5/8/2012 127 6/19/2012 122 7/11/2012 135 8/7/2012 166 9/19/2012 130 10/23/2012 161 11/12/2012 138 12/24/2012 137
MW-14 (Class III)Field pH (S.U.)6.5 - 8.5 1/24/2012 6.36 2/21/2012 6.57 3/14/2012 6.51 4/12/2012 6.97 5/9/2012 6.73 6/19/2012 6.90 7/11/2012 6.89 8/7/2012 6.58 9/18/2012 7.08 10/23/2012 6.83 11/27/2012 6.52 12/18/2012 6.60
MW-25 (Class III)
Field pH (S.U.)6.5 - 8.5
1/25/2012
6.63
2/14/2012
6.83
3/14/2012
6.55
4/9/2012
6.58
5/2/2012
6.73
6/18/2012
6.99
7/10/2012
6.88
8/6/2012
6.55
9/18/2012
6.54
10/22/2012
6.54
11/12/2012
6.47
12/24/2012
6.62
Cadmium (ug/L)1.5 NA 1.31 NA NA 1.33 NA 1.24 NA NA NA 1.56 NA
Uranium (ug/L)6.5 6.6 6.5 6.93 6.52 5.90 7.6 6.45 6.72 6.01 6.37 6.61 4.83
MW-26 (Class HI)
Nitrate + Nitrite (as N)
(mg/L)0.62
1/25/2012
1.9 2/15/2012 1.2 3 3.4 2.9
6/19/2012
2.3 7/11/2012 1.9
8/8/2012
1.6
9/19/2012
1.8
10/24/2012
3.5 0.55
12/24/2012
1.46
Uranium (ug/L)41.8 64.6 2/21/2012 59.4 31.2 42.2 18.2 66.0 28.4 67.4 64.9 26.9 56.8 51.3
Chloroform (ug/L)70 1900 2/15/2012 3300 2900 2900 1700 2400 8/16/2012 970 2200 2300 4720 4020 1250
Chloride (mg/L)58.31 68 40 3/14/2012 74 4/11/2012 82 6/26/2012 74 85 7/11/2012 78 78 67 2.62 11/15/2012 52.9 65.9
Held pH (S.U.) 6.74 - 8.5 6.59 2/21/2012 6.72 (6.91)
(6.71)6.39 6.88 7.00(7.01)7.00 7/11/2012
8/16/2012 7.10 (6.80)6.60 7.40 6.63 6.60 6.78
Methylene Chloride (ug/L)5 13 2/15/2012 24 27 20 10 16 8/16/2012 4.9 17 9.8 15.0 34.6 5.5
MW-30 (Class II)
Nitrate + Nitrite (as N)
(mg/L)2.5 1/24/2012 17 17 18 17
5/2/2012
16
6/18/2012
15
7/10/2012
17
8/7/2012
18
9/19/2012
16
10/23/2012
16.2 18.5
12/26/2012
17.2
Chloride (mg/L)128 124 126 128 128 124 131 128 139 130 135 114 122
Uranium (ug/L)8.32 NS NA 7.42 8.38 7.84 6.81 7.8 7.64 8.04 7.67 7.86 7.03 5.80
Field pH (S.U.)6.5 - 8.5 1/24/2012 6.52
2/14/2012
7.12
3/14/2012
6.86
4/10/2012
7.05 6.95 7.10 7.25 6.95 7.85 6.80
11/13/2012
6.67 6.95
Fluoride (mg/L)0.51 NS NA 0.38 NA NA 0.34 NA 0.33 NA NA NA 0.329 NA
Selenium (ug/L)34 1/24/2012 33.3 35 39.5 39.1 32.3 37 38.5 38.4 41.9 45.2 36 31.6
MW-31 (Class III)
Nitrate + Nitrite (as N)
(mg/L)5
1/24/2012
21 21 22 21
5/2/2012
20
6/18/2012
6/29/2012
21.6 21
8/6/2012
21
9/18/2012
21
10/22/2012
18 23.6 22.2
TDS (mg/L)1320 1360 1240 1400 1380 1410 1460 1400 1400 1460 1320 1230
12/18/2012
1270
Chloride (mg/L)143 155
2/13/2012
150
3/13/2012
152 160 151 138 161 175 172 157 189 170
Selenium (ug/L)71 NS 67.8 NS 4/9/2012 NS 10.2 NA 7/9/2012 74 NA NA NA 11/6/2012 76.9 NA
Field pH (S.U.)6.5 - 8.5 6.78 7.37 7.13 7.14 7.19 7.28 (7.63)7.53 6.96 7.1 7.05 7.04 7.10
Uranium (ug/L)9.1 NS 7.96 NS NS 7.34 NS 8.17 NS NS NS 8.73 NS
Sulfate (mg/L)532 539 538 517 547 532 497 529 571 561 545 557 664
MW-35 (Class II)
Manganese (ug/L) 200 264 253 269
4/10/2012
277
5/2/2012
258
6/19/2012
304
7/10/2012
272
8/8/2012
273
9/19/2012
283
10/23/2012
253 241
12/18/2012
240
Gross Alpha minus Rn & U
(pCi/L)3.75 6.5 4.1 6.2 4.1 4.5 4.9 3.5 4.2 5.4 4.31 4.23 6.5
Field pH (S.U.)6.5 - 8.5 1/24/2012 6.35 2/14/2012 6.67 3/13/2012 6.48 6.84 6.61 6.90 6.87 6.74 6.81 6.43 11/13/2012 6.50 6.60
Selenium (ug/L)12.5 NA 19.7 NA NA 11.4 7.0 15.9 18.8 8.2 19.0 15.4 12.1
Uranium (ug/L)7.5 16.1 24.7 24.9 22.4 22.2 22.5 24.5 26.2 22.9 22.4 21.8 21
Required Semi-Annual Sampling Wells
Chloride (mg/L)22.1 NA NA NA NA 18 NA NA NA NA NA 18.5 NA
MW-01 (CLASS II)Field pH (S.U.)6.77 - 8.5 NS NA NS NA NS NA NS NA 5/1/2012 7.19 NS NA NS NA NS NA NS NA NS NA 11/27/2012 6.98 NS NA
Sulfate (mg/L)838 NA NA NA NA 659 NA NA NA NA NA 846 NA
MW-03A (Class III)
Field pH (S.U.)6.5 - 8.5
NS
NA
3/1/2012
6.46
NS
NA
NS
NA
5/15/2012
6.68
NS
NA
7/19/2012
7.01
NS
NA
KIC
NA NA
i i /on/on i o
6.35
1VTC
NA
Sulfate (mg/L)3640 NA 3020 NA NA 3220 NA 3700 NA INo NA INa NA 11/ZWZUIZ 2780 No
NA
Selenium (ug/L)89 NA 65.8 NA NA 85.1 NA 99.3 NA NA NA 111 NA
MW-05 (Class II)Field pH (S.U.)6.5 - 8.5 NS NA 2/28/2012 7.57 NS NA NS NA 5/9/2012 7.38 NS NA 7/16/2012 7.60 NS NA NS NA NS NA 11/27/2012
7.32 xrc NT AUranium (ug/L)7.5 18.6 1.23 0.75 0.402
IN5 InA
Selenium (ug/L)25 NA NA NA NA 19.6 NA 20.7 NA NA NA 23.0 NA
MW-12 (Class III)Field pH (S.U.)6.5 - 8.5
NS
NA
2/29/2012 6.81 NS
NA
NS
NA
5/10/2012
6.91 NS NA 7/17/2012 6.98 NS NA NS NA NS NA 11/27/2012 6.54 NS
NA
MW-15 (Class III)Selenium (ug/L)128.7 Njc NA NA xic NA NS NA 5/9/2012 152 NA T/l *7/On 1 o
120
vie NA vro NA NA 117 NA
Field pH (S.U.)6.62 - 8.5 INO NA LU.£J £\J\L 6.84 INO NA NA 6.63 [No NA II1 //ZUlz 7.05 NA
N5>
NA NS NA 11/14/2012 6.86 NS NA
Q1 2012 Results Q2 2012 Results Q3 2012 Results Q4 2012 Results
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in
Current
GWDP
January 2012
Monthly
Sample Date
January 2012
Monthly Result
Q1 2012
Sample Date
Q1 2012
Result
March 2012
Monthly Sample
Date
March 2012
Monthly Result
April 2012
Monthly
Sample Date
April 2012
Monthly Result
Q2 2012
Sample Date
Q2 2012
Result
June 2012
Monthly
Sample Date
June 2012
Monthly
Result
Q3 2012
Sample
Date
Q3 2012
Result
August 2012
Monthly
Sample Date
August 2012
Monthly
Result
September 2012
Monthly Sample
Date
September 2012
Monthly Result
October 2012
Monthly
Sample Date
October 2012
Monthly
Result
Q4 2012
Sample Date
Q4 2012
Result
December 2012
Monthly Sample
Date
December 2012
Monthly Result
Recuired Semi-Annual Sampling Wells, continued
Thallium (ug/1)1.95 NA 3.63 NA NA 3.51 NA 3.73 NA NA NA 3.2 NA
MW-18 (Class III)Sulfate (mg/L)1938.9 NA 1920 NA NA 1790 NA 1900 NA NA NA 1210 NA
Field pH (S.U.)6.25-8.5 NS NA 2/27/2012 6.6 NS NA NS NA 4/30/2012 6.59 NS NA 7/18/2012 6.64 NS NA NS NA NS NA 11/26/2012 6.51 NS NA
TDS (mg/L)3198.77 NA 3230 NA NA 3280 NA 3220 NA NA NA 3160 NA
MW-19 (Class III)Field pH (S.U.)6.78-8.5
NS
NA
2/28/2012
6.83
NS
NA
NS
NA
5/16/2012
6.86
NS
NA
7/19/2012
7.21
NS
NA
NS
NA
NS
NA
12/13/2012
6.71
NS
NA
Nitrate + Nitrite (as N)
(mg/L)2.83 NA 3.9 NA NA 3.7 NA 4 NA NA NA 3.96 NA
MW-23 (Class HI)Field pH (S.U.)6.5 - 8.5 NS NA 2/20/2012 6.61 NS NA NS NA 5/16/2012 6.74 NS NA 7/17/2012 7.10 NS NA NS NA NS NA 12/5/2012 6.61 NS NA
Cadmium (ug/L)2.5 NA 2.25 NA NA 2.01 NA 4.7 NA NA NA 1.35 NA
Fluoride (mg/L) 0.36 NA NA NA NA 0.14 NA NA NA NA NA 0.558 NA
MW-24 (Class III)Sulfate (mg/L)2903 NS NA 2/23/2012 NA NS NA NS NA 5/10/2012 2490 NS NA 7/18/2012 NA NS NA NS NA NS NA 11/29/2012 2310 NS NA
Thallium (ug/L)1 NA 0.96 NA NA 0.74 NA 1.36 NA NA NA 0.666 NA
Field pH (S.U.)6.5 - 8.5 NA 6.03 NA NA 6.21 NA 6.45 NA NA NA 6.01 NA
MW-27 (Class III)
Nitrate + Nitrite (as N)
(mg/L)5.6 NA 6.4 NA NA 6.2 NA 6.7 NA NA NA 6.9 NA
Chloride (mg/L)38 NS NA 2/28/2012 45 NS NA NS NA 5/1/2012 46 NS NA 7/16/2012 47 NS NA NS NA NS NA 11/13/2012 44.2 NS NA
Field pH (S.U.)6.5 - 8.5 NA 7.24 NA NA 7.03 NA 7.40 NA NA NA 6.69 NA
TDS (mg/L)1075 NA 1140 NA NA 1170 NA 1150 NA NA NA 1070 NA
Chloride (mg/L)105 NA 109 NA NA 114 NA 7/16/2012
8/1/2012 105 NA NA NA 115 NA
Cadmium (ug/L)5.2 NA NA NA NA 3.85 NA NS NA NA NA NA 4.37 NA
MW-28 (Class III)Uranium (ug/L)4.9 NS NA 2/28/2012 NA NS NA NS NA 5/8/2012 3.44 NS NA NS NA NS NA NS NA NS NA 11/14/2012 3.45 NS NA
Vanadium (ug/L)30 NA NA NA NA <15.0 NA NS NA NA NA NA <15.0 NA
Field pH (S.U.)6.1 -8.5 NA 6.22 NA NA 6.15 NA 7/16/2012
8/1/2012 6.38 (5.81)NA NA NA 5.98 NA
TDS (mg/L)4400 NA NA NA NA 4600 NA 8/1/2012 4420 NA NA NA 4430 NA
MW-29 (Class III)Sulfate (mg/L)2946 NS NA 2/22/2012 NA NS NA NS NA 5/8/2012 2750 NS NA NS NA NS NA NS NA NS NA 11/14/2012 1340 NS NA
Field pH (S.U.)6.46 - 8.5 NA 7.12 NA NA 6.47 NA 7/16/2012
8/1/2012 6.68(6.45)NA NA NA 6.48 NA
Chloride (mg/L)35.39 NA NA NA NA 33 NA 1.4 NA NA NA 32.1 NA
MW-32 (Class III)Sulfate (mg/L)2556.70 NS NA 2/21/2012 NA NS NA NS NA 4/30/2012 2130 NS NA 7/9/2012 NA NS NA NS NA NS NA 11/6/2012 1710 NS NA
Field pH (S.U.)6.4 - 8.5 NA 6.57 NA NA 6.40 NA 6.72 NA NA NA 6.23 NA
Notes:
GWCL values are taken from August 24, 2012 version of GWDP.
NS = Not Required and Not Sampled
iniv = ivcquucu iuiu i>ui
NA = Not Applicable
Exceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
Table 1 - GVVCL Exceedances for Firet Quarter 2017 under the August 24. 2012 GVVDP
Q1 2013 Results Q2 2013 Results Q3 013 Results Q4 201 Results
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in August
24, 2012 GWDP
January 2013
Monthly
Sample Date
January
2013
Monthly-
Result
Q12013 Sample
Date
Ql 2013
Result
March 2013
Monthly
Sample Date
March 2013
Monthly
Result
April 2013
Monthly
Sample Date
April 2013
Monthly
Result
Q2 2013 Sample
Date
Q2 2013
Result
June 2013
Monthly
Sample Date
June 2013
Monthly
Result
Q3 2013
Sample Date
Q3 2013
Result
August 2013
Monthly
Sample Date
August 2013
Monthly
Result
September 2013
Monthly
Sample Date
September 2013
Monthly Result
October 2013
Monthly Sample
Date
October 2013
Monthly
Result
Q4 2013
Sample Date
Q4 2013
Result
December
2013 Monthly
Sample Date
December 2013
Monthly Result
Required Quarter!Sampling Wells
MW-11 (Class II)Manganese (ug/L) 131.29 1/23/2013 115 2/20/2013 139 3/20/2013 164 4/16/2013 181 5/14/2013 144 6/25/2013 135 7/10/2013 138 8/20/2013 158 9/18/2013 134 10/22/2013 129 11/19/2013 152 12/18/2013 196
MW-14 (Class HI)Field pH (S.U.)6.5 - 8.5 1/23/2013 6.48 2/26/2013 6.52 3/20/2013 6.48 4/16/2013 7.58 5/14/2013 7.39 6/25/2013 6.54 7/11/2013 6.47 8/20/2013 6.86 9/19/2013 6.48 10/22/2013 6.77 11/20/2013 6.51 12/18/2013 6.74
MW-25 (Class III)
Field pH (S.U.)6.5 - 8.5
1/22/2013
6.65
2/20/2013
6.62
3/19/2013
6.41
4/17/2013
7.00
5/14/2013
7.19
6/24/2013
6.61
7/10/2013
6.32
8/19/2013
6.74
9/17/2013
6.54
10/22/2013
6.81
11/19/2013
6.62
12/17/2013
6.73
Cadmium (ug/L)1.5 NA 1.35 1.40 1.36 1.52 1.31 1.41 1.57 1.31 1.50 1.35 1.23
Uranium (ug/L)6.5 5.97 5.39 5.68 5.56 5.88 5.35 6.22 6.42 5.99 5.94 7.13 NA
MW-26 (Class III)
Nitrate + Nitrite (as N) (mg/I.) 0.62
1/24/2013
1.66
2/20/2013
1.38
3/20/2013
1.61
4/17/2013
1.73
5/23/2013
2.01 3.042.11*1.98
8/20/2013
1.77 3.60
10/23/2013
4.10
11/20/2013
1.38
12/18/2013
2.56
Uranium (ug/L)41.8 65.7 57.8 69 58.8 64.3 71.3 70 723 19.9 58.8 75.8 70.4
Chloroform (ug/L)70 1270 1500 1340 1680 1210 4030*2410 2110 4170 3420 1220 1680
Chloride (mg/L)58.3!63.5 77 73.6 70.4 63.1
0/j/zUl3
6/25/2013 87.8 77.9*7/11/2013 72.1 70.8 9/18/2013 77.3 63.8 62.3 65.7
Field pH (S.U.)6.74 - 8.5 6.51 6.71 6.70 6.96 7.31 6.85 6.43 7.41 6.71 6.82 6.83 6.93
Methylene Chloride (ug/L)5 6.49 5.53 8.31 10.2 4.07 52.4* [12.11 14.2 14.6 42.4 29.8 7.64 7.48
MW-30 (Class II)
Nitrate + Nitrite (as N) (mg/L)2.5
1/23/2013
19.2 21.4
3/20/2013
14.3
4/17/2013
16.8
5/15/2013
18.8 16.1 17.6
8/20/2013
16.4
9/18/2013
16.9
10/22/2013
19.7 19.5
12/18/2013
20.7
Chloride (mg/L)128 128 129 126 117 119 127 130 126 131 128 124 134
Uranium (ug/L)8.32 8.36 1A 6.85 7.08 6.31 8.22 7.48 7.07 7.00 6.91 8.57 NA
Field pH (S.U.)6.5 - 8.5 6.88
2/26/2013
6.93 6.91 7.42 7.54
6/25/2013
6.93
7/10/2013
6.87 7.06 6.78 6.96
11/20/2013
6.84 7.10
Fluoride (mg/L)0.51 NA 0.373 NA NA 0.331 NA 0.368 NA NA NA 0.335 NA
Selenium (ug/L)34 37.2 42.3 39 37.3 39.4 32.1 36.5 36.3 35.2 39.5 36.6 35.1
MW-31 (Class III)
Nitrate + Nitrite (as N) (mg/L)5
1/22/2013
22.8
2/19/2013
19.3
3/19/2013
19.1
4/16/2013
18.8
5/13/2013
23.8 20.0
7/9/2013
21.7
8/19/2013
16.0
9/17/2013
21.2
10/23/2013
21.2 23.9 24.2
TDS (mg/L)1320 1270 1390 1420 1260 1540 1380 1510 1440 1500 1460 1320 1500
Chloride (mg/L)143 176 174 168 171 169 179 182 183 193 188 174
12/17/2013
203
Selenium (ug/L)71 NS 74.1 81.8 72.9 75.9 6/24/2013 73.7 75.7 73.2 72.6 80.7 11/18/2013 74.5 79.8
Field pH (S.U.)6.5 - 8.5 6.94 7.32 7.28 6.37 1.92 7.10 6.98 7.36 7.06 7.35 6.99 7.23
Uranium (ug/L)9.1 NS 7.33 NS NS 1.63 NS 7.90 NS NS NS 9.03 NS
Sulfate (mg/L) 532 611 644 611 668 630 659 659 656 666 637 609 656
MW-35 (Class II)
Manganese (ug/L)200
1/23/2013
247
2/26/2013
272
3/19/13
246
4/17/2013
243
5/13/2013
252 243
7/9/2013
250
8/19/2013
262
9/17/2013
257
10/23/2013
240 251
12/17/2013
260
Gross Alpha minus Rn & U
(pCi/L)3.75 6.62 5.09 9.51 4.75 4.92 3.24 5.70 3.92 5.10 3.73 5.39 4.74
Field pH (S.U.)6.5 - 8.5 6.54 6.68 6.43 6.96 7.33
6/24/2013 6.70 6.51 7.02 6.50 6.83 11/19/2013 6.52 6.73
Selenium (ug/L)12.5 11.0 10.8 22.6 11.8 16.1 13.6 8.01 <5 <5 19.8 <5 <5
Uranium (ug/L)7.5 23.6 21.3 22.1 20.0 22.0 19.3 23.0 21.4 20.2 21.8 24.1 20
Required Semi-Annual Sampling Wells
MW-01 (Class II)
Chloride (mg/L)22.1
NS
NA
3/12/2013
NA
NS
NA
NS
NA
5/21/2013
17.8 NA NA
NS
NA NA
NS
NA 18.7
NS
NA
Field pH (S.U.)6.77 - 8.5 NA 6.77 NA NA 7.57 NS NA 7/23/2013 7.04 NA NS NA NA 12/4/2013 7.04 NA
Sulfate (mg/L)838 NA 761 NA NA 839 NA 911 NA NA NA 930 NA
MW-03A (Class III)
Field pH (S.U.)6.5 - 8.5
NS
NA
3/13/2013
6.84
NS
NA
NS
NA
5/23/2013
7.10
NS
NA
7/19/2013
6.50
NS
NA
NS
NA
NS
NA
12/11/2013
6.98
NS
NA
Sulfate (mg/L)3640 NA 3480 NA NA 3120 NA 3670 NA NA NA 3360 NA
Selenium (ug/L)89 NA 88.7 NA NA 75.6 NA 79.7 NA NA NA 77.9 NA
MW-05 (Class II)Field pH (S.U.) 6.5 - 8.5 NS NA 3/11/2013 7.39 NS NA NS NA 5/14/2013 8.01 NS NA 7/18/2013 7.39 NS NA NS NA NS NA 12/4/2013 7.58 NS NAUranium (ug/L)7.5 36 1.33 0.574 20.1
MW-12 (Class III)
Selenium (ug/L)25
NS
NA
3/6/2013
19.6
NS
NA
NS
NA
5/15/2013
19 NA 20.5 NA
NS
NA
NS
NA 21.7 NA
Field pH (S.U.)6.5 - 8.5 NA 6.56 NA NA 7.19 NS
NA
7/17/2013 6.60 NS
NA NA NA 12/9/2013 6.69 NS
NA
MW-15 (Class III)Selenium (ug/L)128.7 NS NA i/s/on | ■»
137 NS NA NS NA 5/15/2013 120 MC NA
7/1 r/^oi i 100 NIC NA NS NA NS NA 11 /?n/7011 106 MR NA
Field pH (S.U.)6.62 - 8.5 NA 6.75 NA NA 7.27 NA
III o/ZU 1J 6.68 NA NA NA 1 l/ZU/ZUl J 6.61 NA
Q1 2013 Results Q2 2013 Results Q3 2013 Results Q4 2013 Results
Monitoring Well
(W'ater Class)
GWCL in Current
GWDP
January 2013
Monthly
Sample Date
January
2013
Monthly
Result
Q1 2(113 Sample
Date
Q1 2013
Result
March 2013
Monthly
Sample Date
March 2013
Monthly
Result
April 2013
Monthly
Sample Date
April 2013
Monthly
Result
Q2 2013 Sample
Date
Q2 2013
Result
June 2013
Monthly
Sample Date
June 2013
Monthly
Result
Q3 2013
Sample Date
Q3 2013
Result
August 2013
Monthly
Sample Date
August 2013
Monthly
Result
September 2013
Monthly
Sample Date
September 2013
Monthly Result
October 2013
Monthly Sample
Date
October 2013
Monthly
Result
Q4 2013
Sample Date
Q4 2013
Result
December
2013 Monthly
Sample Date
December 2013
Monthly ResultGWCL
Required Semi-Annual Sampling Wells, continued
MW-18 (Class UI)
Thallium (ug/1)1.95 NA 3.26 NA NA
5/20/2013
2.81
NS
NA 3.32 NA
NS
NA
NS
NA
12/3/2013
3.06 NA
Sulfate (mg/L)1938.9 NA 1270
NS
NA NA 1860 NA 1860 NA NA NA 2000 NA
Field pH (S.U.)6.25-8.5 NS NA 2/25/2013 6.35 NA NS NA 6.97 NA 7/15/2013 6.45 NS NA NA NA 6.38 NS NA
TDS (mg/L)3198.77 NA 3350 NA NA 3160 NA 3170 NA NA NA 3240 NA
MW-19 (Class III)Field pH (S.U.)6.78-8.5 NA
3/13/2013
6.50
NS
NA
NS
NA
5/20/2013
7.16
NS
NA
7/15/2013
6.91
NS
NA
NS
NA
NS
NA
12/3/2013
6.58
NS
NA
Nitrate + Nitrite (as N) (mg/L)2.83 NA 3.61 NA NA 4.21 NA 3.66 NA NA NA 3.70 NA
MW-23 (Class III) Field pH (S.U.)6.5 - 8.5 NS NA 3/11/2013 6.37 NS NA NS NA 5/23/2013 7.23 NS NA 7/18/2013 6.61 NS NA NS NA NS NA 12/18/2013 7.21 NS NA
MW-24 (Class III)
Cadmium (ug/L)2.5 NA 2.0
NS
NA NA
5/22/2013
1.32 NA
7/19/2013
6.72 NA
NS
NA
NS
NA 1.15 NA
Fluoride (mg/L)0.36 NA 0.355 NA NA 0.211 NA 0.288 NA NA NA 0.310 NA
Sulfate (mg/L)2903 NS NA 3/13/2013 NA NA NS NA 2070 NS NA NA NS NA NA NA 12/12/2013 2490 NS NA
Thallium (ug/L)1 NA 0.88 NA NA 0.618 NA 1.64 NA NA NA 0.707 NA
Field pH (S.U.)6.5 - 8.5 NA 6.29 NA NA 6.77 NA 5.80 NA NA NA 6.08 NA
MW-27 (Class HI)
Nitrate + Nitrite (as N) (mg/L)5.6
NS
NA
2/25/2013
7.94
NS
NA NA
5/21/2013
7.09
NS
NA
7/17/2013
6.97 NA
NS
NA
NS
NA 7.89 NA
Chloride (mg/L)38 NA 50.3 NA NS NA 44.3 NA 44.2 NS NA NA NA 12/4/2013 45.0 NS NA
Field pH (S.U.)6.5 - 8.5 NA 7.03 NA NA 7.58 NA 7.00 NA NA NA 7.16 NA
TDS (mg/L)1075 NA 1140 NA NA 1110 NA 1110 NA NA NA 1100 NA
MW-28 (Class III)
Chloride (mg/L)105
NS
NA
3/5/2013
110
NS
NA NA
5/15/2013
102
NS
NA
7/17/2013
107 NA
NS
NA
NS
NA 109 NA
Cadmium (ug/L)5.2 NA NA NA NA 4.61 NA NA NA NA NA 4.74 NA
Uranium (ug/L)4.9 NA NA NA NS NA 3.58 NA NA NS NA NA NA 12/4/2013 3.34 NS NA
Vanadium (ug/L)30 NA NA NA NA <15.0 NA NA NA NA NA <15.0 NA
Field pH (S.U.)6.1 - 8.5 NA 6.00 NA NA 6.63 NA 5.97 NA NA NA 6.10 NA
MW-29 (Class III)
TDS (mg/L)4400
NS
NA
3/6/2013
4500
NS
NA NA
5/23/2013
4340
NS
NA
7/17/2013
4270 NA
NS
NA
NS
NA 4370 NA
Sulfate (mg/L)2946 NA NA NA NS NA 2450 NA NA NS NA NA NA 11/20/2013 2750 NS NA
Field pH (S.U.)6.46 - 8.5 NA 6.36 NA NA 6.88 NA 6.37 NA NA NA 6.35 NA
Chloride (mg/L)35.39 NA NA NA NA 32.3 NA NA NA NA NA 33.7 NA
MW-32 (Class HI)Sulfate (mg/L)2556.70 NS NA 2/19/2013 NA NS NA NS NA 5/13/2013 1800 NS NA 7/9/2013 NA NS NA NS NA NS NA 11/18/2013 2110 NS NA
Field pH (S.U.)6.4 - 8.5 NA 6.52 NA NA 7.10 NA 6.39 NA NA NA 6.29 NA
Notes:
GWCL values are taken from August 24. 2012 version of GWDP.
NS = Not Required and Not Sampled
I'liv = ivcquucu aiiu
NA = Not Applicable
Exceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in August
24, 2012 GWDP
January 2014
Monthly Sample
Date
January 2014
Monthly Result
February 2014
Monthly Sample
Date
February 2014
Monthly Result
Q1 2014 Sample
Date
Q1 2014
Result
April 2014
Monthly Sample
Date
April 2014
Monthly
Result
May 2014
Monthly
Sample Date
May 2014
Monthly
Result
Q2 2014
Sample
Date
Q2 2014
Result
July 2014
Monthly
Sample Date
July 2014
Monthly
Result
August
2014
Monthly
Sample
Date
August
2014
Monthly
Result
Q3 2014
Sample
Date
Q3 2014
Result
October 2014
Monthly-
Sample Date
October 2014
Monthly Result
Q4 2014
Sample Date Q4 2014 Result
December
2014 Monthly
Sample Date
December 2014
Monthly Result
Required Quarterly ampling Wells
MW-11 (Class II)Manganese (ug/L)131.29 1/8/2014 141 2/24/2014 163 3/11/2014 134 4/25/2014 136 5/14/2014 128 6/3/2014 166 7/29/2014 139 8/20/2014 139 9/8/2014 74.0 10/6/2014 157 11/17/2014 125 12/10/2014 186
MW-14 (Class III)Field pH (S.U.) 6.5 - 8.5 1/8/2014 6.60 2/24/2014 6.16 3/11/2014 6.33 4/23/2014 6.84 5/13/2014 6.60 6/3/2014 7.63 7/28/2014 6.44 8/20/2014 7.07 9/2/2014 6.41 10/7/2014 6.46 11/12/2014 6.25 12/10/2014 6.40
MW-25 (Class III)
Field pH (S.U.)6.5 - 8.5
1/7/2014
6.37
2/13/2014
6.10
3/10/2014
6.27
4/28/2014
7.18
5/13/2014
6.80
6/2/2014
6.74
7/28/2014
6.36
8/18/2014
7.17
9/3/2014
6.50
10/6/2014
6.49
11/4/2014
6.31
12/9/2014
6.36
Cadmium (ug/L)1.5 1.39 1.29 1.29 1.51 1.34 1.24 1.30 1.30 1.30 1.41 1.57 1.27
Uranium (ug/L)6.5 NA 5.83 6.26 10.6 7.43 6.07 5.9 6.1 6.0 6.67 6.04 5.75
MW-26 (Class IH)
Nitrate + Nitrite (as N)
(mg/L)0.62
1/8/2014
2.42
2/24/2014
2.12 1.30
4/30/2014
1.20
5/14/2014
1.64
6/5/2014
1.42 2.0 1.00
9/4/2014
1.10
10/7/2014
0.704
11/18/2014
1.09
12/10/14
12/15/14
<0.100
Uranium (ug/L)41.8 81.7 72.2 51.8 96.0 90.6 75.0 86.5 74.4 48.4 75.4 66.0 42.5
Chloroform (ug/L)70 1580 2810 2800 1310 1580 1450
7/29/2014
2330 2200 1580 894 1520 2280
Chloride (mg/L)58.31 69.7 70.4 3/12/2014 61.0 62.1 61.0 63.2 80.0 8/20/2014 59.0 68.0 57.7 54.2 65.5
Field pH (S.U.) 6.74 - 8.5 6.80 6.78 6.50 7.19 7.13 6.78 6.60 7.28 6.67 6.85 6.09 6.25(6.44)
Methylene Chloride (ug/L)5 6.52 25.8 15.5 5.54 10.2 6.73 9.6 43.3 10.9 3.78 7.34 28.4
MW-30 (Class II)
Nitrate + Nitrite (as N)
(mg/L)2.5 20.3
2/25/2014
18.4 21.3
4/23/2014
18.3
5/14/2014
17.9
6/3/2014
19.4 15.6 13.8
9/9/2014
16.8
10/7/2014
11.0
11/10/2014
16.2
12/10/2014
17.1
Chloride (mg/L)128 131 135 144 154 128 128 140 139 136 136 154 138
Uranium (ug/L) 8.32 NA 6.83
3/11/2014
7.84 6.84 9.82 7.35
7/29/2014
7.40 7.60 7.70 7.76 7.65 7.67
Field pH (S.U.)6.5 - 8.5
1/8/2014
6.74 6.80 6.56 7.06 6.88 6.89 6.76
8/20/2014
7.51 6.82 6.92 6.22 6.77
Fluoride (mg/L)0.51 NA 0.332 0.357 NA NA 0.342 NA NA 0.40 NA 0.262 NA
Selenium (ug/L) 34 35.6 35.8 38.0 32.8 37.0 35.4 42.9 48.5 53.6 38.9 36.8 37.5
MW-31 (Class III)
Nitrate + Nitrite (as N)
(mg/L)5 24.0
2/17/2014
20.6 26.2
4/28/2014
19.1
5/13/2014
23.3
6/2/2014
23.1 19.0 15.2
9/3/2014
18.9
10/6/2014
15.9
11/14/2014
20.9
12/9/2014
17.0
TDS (mg/L)1320
1/7/2014
1510 1460
3/10/2014
1490 1440 1510 1520 1400 1410 1460 1420 1520 1450
Chloride (mg/L)143 194 197 230 230 200 173 200 210 210 205 204 215
Selenium (ug/L)71 74.4 75.8 77.2 85.4 74.5 69.4 7/28/2014 77.9 8/18/2014 82.8 81.5 78.9 73.0 71.1
Field pH (S.U.)6.5 - 8.5 7.13 6.45 6.53 7.45 6.83 8.23 6.88 7.60 6.94 6.97 6.69 6.73
Uranium (ug/L)9.1 NS 7.65 7.96 NS NS 7.72 NS NS 8.40 NS 7.71 NS
Sulfate (mg/L)532 558 480 681 527 639 555 600 620 560 606 639 687
MW-35 (Class II)
Manganese (ug/L)200
1/8/2014
252
2/11/2014
247 204
4/25/2014
194 249
6/4/2014
202 212 191
9/3/2014
177
10/6/2014
228
11/12/2014
222
12/9/2014
232
Gross Alpha minus Rn & U
(pCi/L)3.75 4.12 3.98 4.33 2.95
5/14/2014
3.67 3.36 3.09 4.70 3.93 4.14 3.92 4.54
Field pH (S.U.)6.5 - 8.5 6.54 6.07 3/11/14 6.32 6.79 7.10 6.83 7/29/2014 6.55 8/20/2014 7.07 6.46 6.54 6.35 6.25
Selenium (ug/L)12.5 8.95 12.3 14.1 18.6 17.0 13.9 13.2 28.9 31.4 15.5 10.1 7.5
Uranium (ug/L)7.5 20.8 20.6 21.5 30.6 26.9 21.9 26.5 20.3 23.6 23.9 19.6 20.3
Required Semi-Annual Sampling Wells
MW-01 (Class II)
Chloride (mg/L)22.1
NS
NA
NS
NA NA
NS
NA
NS
NA 20.4
NS
NA NA
9/10/2014
NA
NS
NA
11/17/2014
19
NS
NA
Field pH (S.U.)6.77 - 8.5 NA NA 2/20/2014 6.61 NA NA 5/28/2014 7.11 NA NS NA 6.75 NA 6.87 NA
Sulfate (mg/L) 838 NA NA 836 NA NA 909 NA NA 810 NA 920 NA
MW-03A (Class III)Field pH (S.U.)6.5 - 8.5
NS
NA
NS
NA
3/5/2014
6.58
NS
NA
NS
NA
5/30/2014
6.60
NS
NA
NS
NA
9/17/2014
6.40
NS
NA
11/12/2014
6.41
NS
NA
Sulfate (mg/L)3640 NA NA 3100 NA NA 3830 NA NA 3350 NA 3770 NA
Selenium (ug/L)89 NA NA 92.1 NA NA 104 NA NA 129 NA 88.5 NA
MW-05 (Class U)Field pH (S.U.)6.5 - 8.5 NS NA NS NA 2/12/2014 6.87 NS NA NS NA 6/4/2014 7.58 NS NA NS NA 9/11/2014 7.13 NS NA 11/12/2014
6.92 . NS NAUranium (ug/L)7.5 22.0 2.42 0.90 36.20
MW-12 (Class 01)
Selenium (ug/L)25
NS
NA
NS
NA 23.7
NS
NA
NS
NA
6/4/2014
17.20 NA NA
9/16/2014
NA
NS
NA
11/11/2014
33.30
NS
NA
Field pH (S.U.)6.5 - 8.5 NA NA
2/12/2014
6.13 NA NA 7.10
NS
NA
NS
NA 6.47 NA 6.25 NA
MW-15 (Class III)Selenium (ug/L)128.7 M6 NA vrc NA 'yns.ncMA no NS NA NS NA 6/4/2014 105 Me NA NS NA 9/2/2014 273 NS NA 11/12/2014 106 NS NA
Field pH (S.U.)6.62 - 8.5 INO NA rO NA 6.51 NA NA 6.91 NA NA 6.38 NA 6.41 NA
Q12014 Results Q2 2014 Results 03 2014 Results Q4 2014 Results
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in Current
GWDP
January 2014
Monthly Sample
Date
January 2014
Monthly Result
February 2014
Monthly Sample
Date
February 2014
Monthly Result
Q1 2014 Sample
Date
Q1 2014
Result
April 2014
Monthly Sample
Date
April 2014
Monthly
Result
May 2014
Monthly-
Sample Date
May 2014
Monthly
Result
Q2 2014
Sample
Date
Q2 2014
Result
April 2014
Monthly
Sample Date
April 2014
Monthly-
Result
May 2014
Monthly-
Sample
Date
May 2014
Monthly-
Result
Q3 2014
Sample
Date
Q3 2014
Result
October 2014
Monthly
Sample Date
October 2014
Monthly Result
Q4 2014
Sample Date Q4 2014 Result
December
2014 Monthly
Sample Date
December 2014
Monthly Result
Required Semi-Annual Sampling Wells, ccmtinued
MW-18 (Class III)
Thallium (ug/1)1.95
NS
NA
NS
NA
2/19/2014
2.77
NS
NA
NS
NA 2.42
NS
NA
NS
NA
9/9/2014
2.7
NS
NA
11/10/2014
2.88
NS
NA
Sulfate (mg/L)1938.9 NA NA 1650 NA NA 2020 NA NA 1760 NA 1810 NA
Field pH (S.U.)6.25-8.5 NA NA 6.16 NA NA 5/27/2014 7.04 NA NA 6.40 NA 6.10 NA
TDS (mg/L)3198.77 NA NA 3080 NA NA 3260 NA NA 3180 NA 2960 NA
MW-19 (Class III)Field pH (S.U.)6.78-8.5
NS
NA
NS
NA
2/18/2014
6.29
NS
NA
NS
NA
5/27/2014
7.38
NS
NA
NS
NA
9/11/2014
6.46
NS
NA
11/11/2014
6.33
NS
NA
Nitrate + Nitrite (as N)
(mg/L)2.83 NA NA 3.82 NA NA 3.68 NA NA 0.4 NA 2.91 NA
MW-23 (Class III)Field pH (S.U.)6.5 - 8.5 NS NA NS NA 3/5/2014 6.52 NS NA NS NA 6/11/2014 6.67 NS NA NS NA 9/4/2014 6.56 NS NA 11/19/2014 6.69 NS NA
MW-24 (Class III)
Cadmium (ug/L)2.5
NS
NA
NS
NA
3/6/2014
5.92
NS
NA
NS
NA 2.91
NS
NA NA
9/17/2014
1.5
NS
NA
11/19/2014
1.17 NA
Fluoride (mg/L)0.36 NA NA 0.234 NA NA 0.337 NA
NS
NA 0.4 NA 0.109 NA
Sulfate (mg/L)2903 NA NA NA NA NA 5/30/2014 2450 NA NA NA NA 3120 NS NA
Thallium (ug/L)1 NA NA 1.85 NA NA 1.23 NA NA 0.6 NA 0.821 NA
Field pH (S.U.)6.5 - 8.5 NA NA 5.89 NA NA 6.07 NA NA 5.09 NA 5.69 NA
MW-27 (Class III)
Nitrate + Nitrite (as N)
(mg/L)5.6
NS
NA
NS
NA
2/25/2014
7.98
NS
NA
NS
NA 7.35
NS
NA NA
9/8/2014
6.30
NS
NA
11/5/2014
7.70
NS
NA
Chloride (mg/L)38 NA NA 47.0 NA NA 5/28/2014 45.9 NA NS NA 46.0 NA 42.6 NA
Field pH (S.U.)6.5 - 8.5 NA NA 6.62 NA NA 7.80 NA NA 6.97 NA 6.70 NA
TDS (mg/L)1075 NA NA 1040 NA NA 1040 NA NA 1020 NA 1090 NA
MW-28 (Class III)
Chloride (mg/L)105
NS
NA
NS
NA
2/26/2014
113
NS
NA
NS
NA 114
NS
NA NA
9/16/2014
112
NS
NA
11/5/2014
117 NA
Cadmium (ug/L)5.2 NA NA NA NA NA 5.41 NA NA 4.7 NA 4.15 NA
Uranium (ug/L)4.9 NA NA NA NA NA 6/18/2014 61.3 NA NS NA 10.6 NA 21.2 NS NA
Vanadium (ug/L)30 NA NA NA NA NA 109 NA NA 18.5 NA 29.3 NA
Field pH (S.U.)6.1 -8.5 NA NA 6.01 NA NA 6.78 NA NA 5.79 NA 5.72 NA
MW-29 (Class III)
TDS (mg/L)4400
NS
NA
NS
NA
2/25/2014
4500
NS
NA
NS
NA
6/3/2014
4200
NS
NA NA
9/10/2014
4280
NS
NA
11/10/2014
4210 NA
Sulfate (mg/L)2946 NA NA NA NA NA 2510 NA NS NA NA NA 2760 NS NA
Field pH (S.U.)6.46 - 8.5 NA NA 6.78 NA NA 7.98 NA NA 6.10 NA 6.11 NA
Chloride (mg/L)35.39 NA NA NA NA NA 35.6 NA NA 8/26/2014 NA 33.3 NA
MW-32 (Class III)Sulfate (mg/L)2556.70 NS NA NS NA 2/11/2014 NA NS NA NS NA 5/23/2014 1990 NS NA NS NA NS NA NS NA 11/5/2014 2210 NS NA
Field pH (S.U.)6.4 - 8.5 NA NA 6.15 NA NA 6.64 NA NA 9/2/2014 6.17 NA 6.08 NA
Notes:
GWCL values are taken from August 24, 2012 version of GWDP.
NS = Not Required and Not Sampled
NR = Required and Not Reported
NA = Not Applicable
Exceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
Tabl^^^jWCl^xceedance^o^irs^uartei^01^indeMh^Au8us^4^01^2WDP
Q1 2015 Results Q2 2015 Results Q3 2015 Results Q4 2015 Results
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in
August 24,
2012 GWDP
January 2015
Monthly-
Sample Date
January 2015
Monthly
Result
Q1 2015
Sample Date
Q1 2015
Result
March 2015
Monthly-
Sample Date
March 2015
Monthly
Result
Q2 2015
Sample Date
Q2 2015
Result
May 2015
Monthly
Sample Date
May 2015
Monthly
Result
June 2015
Monthly
Sample Date
June 2015
Monthly-
Result
July 2015
Monthly
Sample
Date
July 2015
Monthly
Result
Q3 2015 Sample
Date
Q3 2015
Result
September 2015
Monthly Sample
Date
September 2015
Monthly Result
October 2015
Monthly
Sample Date
October 2015
Monthly
Result
Q4 2015
Sample
Date
Q4 2015
Result
December 2015
Monthly Sample
Date
December 2015
Monthly Result
Req aired Quarterly Sampling Wells
MW-11 (Class II)Manganese (ug/L)131.29 1/21/2015 177 2/3/2015 138 3/3/2015 149 4/8/2015 170 5/11/2015 123 6/23/2015 149 7/7/2015 178 8/10/2015 138 9/16/2015 160 10/7/2015 237 11/11/2015 126 12/8/2015 139
MW-14 (Class III)Field pH (S.U.)6.5 - 8.5 1/21/2015 6.49 2/3/2015 6.44 3/5/2015 6.05 4/8/2015 6.55 5/11/2015 6.30 6/1/2015 6.65 7/7/2015 6.57 8/11/2015 6.37 9/16/2015 6.51 10/8/2015 6.45 11/3/2015 6.52 12/8/2015 6.45
MW-25 (Class HI)
Field pH (S.U.)6.5 - 8.5
1/20/2015
6.19
2/4/2015
6.46 6.32
4/7/2015
6.52
5/11/2015
6.46 6/1/2015
6/23/2015 6.59.6.53
7/6/2015
6.70
8/10/2015
6.47
9/15/2015
6.58
10/6/2015
6.45
11/11/2015
6.79
12/8/2015
6.41
Cadmium (ug/L)1.5 1.44 1.33 1.37 1.27 1.38 6/23/2015 1.42 1.43 1.41 1.31 1.5 1.38 1.45
Uranium (ug/L)6.5 6.54 6.81 6.43 5.86 6.38 5.88 6.25 6.39 6.20 6.40 6.19 6.00
MW-26 (Class HI)
Nitrate + Nitrite (as N)
(tng/L)0.62
1/21/2015
0.30
2/11/2015
2.68 0.965
4/9/2015
0.845
5/12/2015
0.606
6/24/2015
0.588
7/7/2015
1.15
8/10/2015
8/17/2015
1.75
9/16/2015
0.795
10/7/2015
2.36
11/11/2015
1.11
12/8/2015
1.200
Uranium (ug/L)41.8 2.96 78.1 72.6 75.7 63.3 67.4 72.1 61.9 56.0 61.2 66.0 65.2
Chloroform (ug/L)70 3570 1190 1020 1520 1160 2610 2560 1240 2150 2400 2660 3140
Chloride (mg/L)58.31 59.9 77.2 3/4/2015 67.2 61.0 61.4 60.8 67.4 88.3 74.5 74.4 75.3 66.0
Field pH (S.U.) 6.74 - 8.5 6.25 6.20 6.23 6.60 6.46 6/3/2015
6/24/2015 6.58, 6.20 6.87 6.54 6.81 6.48 6.80 6.65 6.30
Methylene Chloride (ug/L)5 6.42 5.89 6.95 3.99 4.44 6/24/2015 9.38 11.4 2.17 <1.0 4.27 9.89 12.0
MW-30 (Class II)
Nitrate + Nitrite (as N)
(mg/L)2.5
1/21/2015
19.5
2/4/2015
14.9 17.3 17
5/12/2015
16.1
6/24/2015
15.8
7/7/2015
15.3
8/11/2015
17.9
9/15/2015
17.3
10/7/2015
19.1
11/11/2015
16.3 18.2
Chloride (mg/L)128 144 136 132 142 145 142 145 165 165 137 140 144
Uranium (ug/L)8.32 8.06 8.23 8.35 7.45 8.38 7.46 7.98 8.16 7.72 8.10 7.99 8.22
Field pH (S.U.)6.5 - 8.5 6.41 6.59
3/3/2015
6.32
4/8/2015
6.67 6.76
6/2/2015
6/24/2015 6.94, 6.32 6.85 6.73 6.65 6.88 6.83
12/9/2015
6.79
Fluoride (mg/L)0.51 NA 0.324 NA 0.286 NA NA NA 0.247 NA NA 0.572 NA
Selenium (ug/L)34 37.2 40.9 38.0 37.3 35.7 37.2 39.2 41.6 39.1 43.9 38.6 40.7
MW-31 (Class III)
Nitrate + Nitrite (as N)
(mg/L)5
1/20/2015
20.9
2/2/2015
18.7
3/3/2015
19.8
4/7/2015
19.0
5/11/2015
18.4
6/23/2015
18.0
7/6/2015
18.8
8/10/2015
19.9
9/15/2015
18.9
10/6/2015
22.0 18.4
12/8/2015
19.5
TDS (mg/L)1320 1540 1520 1530 1680 1700 1630 1440 1530 1480 1540 1460 1580
Chloride (mg/L)143 226 211 209 211 225 228 222 264 231 222 215 231
Selenium (ug/L)71 75.6 79.2 76.2 75.7 71.6 74.4 78.2 82.2 79.0 78.6 11/9/2015 77.7 80.4
Field pH (S.U.)6.5 - 8.5 6.49 6.42 6.40 6.80 6.74 6/1/2015
6/23/2015
6/23/2015
7.14. 7.08 7.22 6.80 6.73 6.47 6.36 6.70
Uranium (ug/L)9.1 NS 8 NS 8.07 NS NS NS 8.76 NS NS 8.72 NS
Sulfate (mg/L)532 669 623 616 642 668 691 684 640 638 655 646 690
MW-35 (Class II)
Manganese (ug/L)200
1/20/2015
228
2/5/2015
223 190
4/9/2015
237
5/12/2015
207.0 6/23/2015 214
7/7/2015
185
8/10/2015
198
9/15/15 9/22/15
9/28/15
201, 176
10/6/2015
169 210
12/14/2015
177
Gross Alpha minus Rn & U
(pCi/L)3.75 6.86 5.61 3.81 4.25 4.47 6/2/2015 4.01 4.93 3.24 4.81, 6.13 4.04 4.47 4.69
Field pH (S.U.)6.5 - 8.5 6.22 6.53 3/4/2015 6.26 6.64 6.46 6/2/2015
6/23/2015 6.50, 6.41 6.56 6.40 6.52, 6.41, 6.49 6.29 11/3/2015 6.72 6.57
Selenium (ug/L)12.5 8.21 14.2 26.6 <5.0 9.11 6/23/2015 13.6 26.1 12.5 16.7, 28.5 39.8 9.96 25.0
Uranium (ug/L)7.5 21.8 20.6 24.4 20.2 22.5 20.7 22.0 22.1 21.3, 22.3 23.8 22.7 21.8
Requiired Semi-AnnuEil Sampling Wells
MW-01 (Class II)
Chloride (mg/L)22.1
NS
NA
2/10/2015
NA NA
4/15/2015
23.9
NS
NA
NS
NA
NS
NA
7/27/2015
NA NA
NS
NA
11/11/2015
21.9 NA
Field pH (S.U.)6.77 - 8.5 NA 6.66 NS NA 7.15 NA NA NA 7.12 NS NA NA 6.83 NS NA
Sulfate (mg/L)838 NA 813 NA 892 NA NA NA 876 NA NA 830 NA
MW-03A (Class III)Field pH (S.U.)6.5 - 8.5
NS
NA
2/12/2015
6.15
NS
NA 4/23/2015
4/29/2015 6.59, 6.24
NS
NA
NS
NA
NS
NA
7/29/2015
6.34
NS
NA
NS
NA
11/4/2015
6.63
NS
NA
Sulfate (mg/L) 3640 NA 3450 NA 4/23/2015 3720 NA NA NA 3860 NA NA 3380 NA
Selenium (ug/L)89 NA 94.1 NA 101 NA NA NA 85.9 NA NA 91.7 NA
MW-05 (Class II)Field pH (S.U.)6.5 - 8.5 NS NA 2/10/2015 6.99 NS NA 4/21/2015 7 NS NA NS NA NS NA 7/21/2015 6.97 NS NA NS NA 11/4/2015 7.43 NS NAUranium (ug/L)7.5 2.94 1.3 0.887 2.35
MW-12 (Class III)
Selenium (ug/L)25
NS
NA
2/9/2015
30.0 NA 4/21/2015 29.4
NS
NA NA
NS
NA
7/21/2015
24.6
NS
NA
NS
NA
11/17/2015
24.7
NS
NA
Field pH (S.U.)6.5 - 8.5 NA 6.33
NS
NA 4/21/2015
4/28/2015 6.50. 6.70 NA NS NA NA 6.70 NA NA 6.65 NA
MW-15 (Class III)Selenium (ug/L)128.7 NS NA 2/4/2015 125 NA 4/13/2015 137 NS NA NS NA xrc NA 104 NS NA NS NA 11/16/2015 107 NS NA
Field pH (S.U.)6.62 - 8.5 NA 6.50 NA 6.82 NA NA INd NA 6.61 NA NA 6.81 NA
Q1 2015 Results 02 2015 Results 03 2015 Results Q4 2C115 Results
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in
August 24,
2012 GWDP
January 2015
Monthly
Sample Date
January 2015
Monthly
Result
Q1 2015
Sample Date
Q1 2015
Result
March 2015
Monthly-
Sample Dale
March 2015
Monthly-
Result
Q2 2015
Sample Date
Q2 2015
Result
May 2015
Monthly
Sample Date
May 2015
Monthly
Result
June 2015
Monthly
Sample Date
June 2015
Monthly
Result
July 2015
Monthly-
Sample
Date
July 2015
Monthly
Result
Q3 2015 Sample
Date
Q3 2015
Result
September 2015
Monthly Sample
Date
September 2015
Monthly Result
October 2015
Monthly
Sample Date
October 2015
Monthly
Result
Q4 2015
Sample
Date
Q4 2015
Result
December 2015
Monthly Sample
Date
December 2015
Monthly Result
Required Semi-Annual Sampling Wells, continued
MW-18 (Class III)
Thallium (ug/1)1.95
NS
NA
2/3/2015
2.89
NS
NA 2.81
NS
NA
NS
NA NA
7/27/2015
2.69
NS
NA NA 2.68 NA
Sulfate (mg/L)1938.9 NA 1810 NA 1790 NA NA NA 1990 NA NA 2000 NA
Field pH (S.U.)6.25-8.5 NA 6.21 NA 4/15/2015 6.40 NA NA NS NA 6.43 NA NS NA 11/9/2015 6.30 NS NA
TDS (mg/L)3198.77 NA 3240 NA 3350 NA NA NA 3190 NA NA 3000 NA
MW-19 (Class III)Field pH (S.U.)6.78-8.5
NS
NA
2/2/2015
6.45
NS
NA 6.79
NS
NA
NS
NA
NS
NA
7/27/2015
6.78
NS
NA
NS
NA
11/10/2015
6.70
NS
NA
Nitrate + Nitrite (as N)
(mg/L)2.83 NA 2.91 NA 3.58 NA NA NA 2.82 NA NA 2.23 NA
MW-23 (Class III)Field pH (S.U.)6.5 - 8.5 NS NA 2/10/2015 6.53 NS NA 4/30/2015 6.80 NS NA NS NA NS NA 7/22/2015 6.53 NS NA NS NA 11/18/2015 6.77 NS NA
MW-24 (Class III)
Cadmium (ug/L)2.5
NS
NA
2/12/2015
3.31
NS
NA 1.79
NS
NA
NS
NA NA
7/29/2015
1.88
NS
NA
NS
NA 3.75 NA
Fluoride (mg/L)0.36 NA 0.397 NA 0.293 NA NA NA 0.388 NA NA 0.372 NA
Sulfate (mg/L)2903 NA 2620 NA 2840 NA NA NS NA 2880 NA NA 11/18/2015 2790 NS NA
Thallium (ug/L)1 NA 1.27 NA 0.796 NA NA NA 0.85 NA NA 1.37 NA
Field pH (S.U.)6.5 - 8.5 NA 6.21 NA 5/28/2015
6/24/2015 5.39, 5.98 NA NA NA 5.49 NA NA 5.48 NA
MW-27 (Class HI)
Nitrate + Nitrite (as N)
(mg/L)5.6 NA
2/9/2015
3.15
NS
NA
4/20/2015
6.27
NS
NA
NS
NA NA
7/21/2015
7.35
NS
NA NA 5.60 NA
Chloride (mg/L)38 NS NA 44.2 NA 47.6 NA NA NS NA 43.7 NA NS NA 11/10/2015 42.9 NS NA
Field pH (S.U.)6.5 - 8.5 NA 6.82 NA 7.09 NA NA NA 6.84 NA NA 6.48 NA
TDS (mg/L)1075 NA 996 NA 1040 NA NA NA 1010 NA NA 1000 NA
MW-28 (Class III)
Chloride (mg/L)105 NA
2/9/2015
130
NS
NA
4/21/2015
125
NS
NA
NS
NA NA
7/21/2015
113
NS
NA NA 116 NA
Cadmium (ug/L)5.2 NA 4.83 NA 4.59 NA NA NA 4.97 NA NA
11/10/2015
4.73 NA
Uranium (ug/L)4.9 NS NA 4.48 NA 6.13 NA NA NS NA 4.87 NA NS NA 4.84 NS NA
Vanadium (ug/L)30 NA <15.0 NA <15.0 NA NA NA <15.0 NA NA <15.0 NA
Field pH (S.U.)6.1 - 8.5 NA 5.86 NA 4/21/2015
4/27/2015 6.08, 6.17 NA NA NA 5.91 NA NA 6.22 NA
MW-29 (Class III)
TDS (mg/L)4400
NS
NA
2/10/2015
4430
NS
NA 4190
NS
NA
NS
NA NA
7/22/2015
4310
NS
NA NA
11/16/2015
4110 NA
Sulfate (mg/L)2946 NA NA NA 4/30/2015 2960 NA NA NS NA NA NA NS NA 2740 NS NA
Field pH (S.U.)6.46 - 8.5 NA 6.42 NA 6.36 NA NA NA 6.30 NA NA 6.37 NA
Chloride (mg/L)35.39 NA 3/17/2015 NA 37.8 NA NA NA 37.3 NA NA 34.1 NA
MW-32 (Class HI)Sulfate (mg/L)2556.70 NS NA NS NA NS NA 4/8/2015 2150 NS NA NS NA NS NA 7/23/2015 NA NS NA NS NA 11/3/2015 NA NS NA
Field pH (S.U.) 6.4 - 8.5 NA 2/9/2015 6.29 NA 6.37 NA NA NA 6.26 NA NA 6.41 NA
Notes:
GWCL values are taken from August 24, 2012 version of GWDP.
NS = Not Required and Not Sampled
NR = Required and Not Reported
NA = Not Applicable
Exceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
Table 1 - GWCL Exceedances for First Quarter 2017 under the August 24, 2012 GWDP
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in
August 24,
2012 GWDP
January 2016
Monthly
Sample Date
January
2016
Monthly
Result
Q1 2016
Sample Date
Q1 2016
Result
March 2016
Monthly
Sample Date
March 2016
Monthly
Result
April 2016
Monthly
Sample Date
April 2016
Monthly
Result
Q2 2016
Sample Date
Q2 2016
Result
June 2016
Monthly
Sample Date
June 2016
Monthly
Result
July 2016
Monthly
Sample Date
July 2016
Monthly
Result
Q3 2016 Q3 2016
Sample Date Result
September 2016
Monthly Sample
Date
September 2016
Monthly Result
October 2016
Monthly
Sample Date
October 2016
Monthly
Result
________2-
Q4 2016
Sample Date
-_______
Q4 2016
Result
December 2016
Monthly
Sample Date
December 2016
Monthly Result
Required Quarterly Sampling 1Weils
MW-11 (Class II)Manganese (ug/L)131.29 1/20/2016 197 2/8/2016 217 3/3/2016 155 4/12/2016 166 5/3/2016 159 6/14/2016 158 7/13/2016 140 8/16/2016 158 9/14/2016 169 10/5/2016 160 11/7/2016 203 12/6/2016 202
MW-14 (Class III)Field pH (S.U.)6.5 - 8.5 1/19/2016 6.27 2/15/2016 6.55 3/3/2016 6.66 4/13/2016 6.38 5/4/2016 6.28 6/14/2016 6.24 7/13/2016 6.20 8/17/2016 6.71 9/14/2016 6.43 10/5/2016 6.69 11/2/2016 6.59 12/6/2016 6.38
MW-25 (Class III)
Field pH (S.U.)6.5 - 8.5
1/19/2016
6.18
2/8/2016
6.50
3/2/2016
6.57
4/12/2016
6.51
5/3/2016
6.24
6/14/2016
6.25
7/12/2016
6.23
8/17/2016
6.57
9/13/2016
6.21
10/4/2016
6.66
11/2/2016
6.65 6.70
Cadmium (ug/L)1.5 1.37 1.5/1.42 1.39 1.43 1.43 1.44 1.37 1.41 1.41 1.33 12/5/2016 1.41
Uranium (ug/L)6.5 6.54 6.16 6.22 6.03 6.30 5.99 6.64 6.33 6.48 6.36 6.48 6.70
MW-26 (Class HI)
Nitrate + Nitrite (as N)
(mg/L)0.62
1/20/2016
0.943
2/16/2016
1.66
3/2/2016
1.95
4/13/2016
0.990
5/4/2016
1.85
6/15/2016
1.66
7/14/2016
1.63
8/18/2016
2.70 1.67 1.11
11/9/2016
2.73 1.80
Uranium (ug/L)41.8 29.3 30.4 67.7 53.9 39.7 52.7 45.4 34.2 31.7 32.2 30.2 34.9
Chloroform (ug/L) 70 2370 3530 2280 2060 1720 1860 3300 2950 3950 1660 2440 2970
Chloride (mg/L)58.31 63.5 69.1 76.8 67.4 68.1 81.6 68.3 78.6 9/15/2016 75.6 10/6/2016 71.1 67.9 12/6/2016 73.7
Field pH (S.U.)6.74 - 8.5 6.27 5.98 6.35 6.50 6.19 6.29 6.20 6.65 6.40 6.68 5.90 6.23
Methylene Chloride (ug/L)5 4.73 8.68 3.93 5.62 3.63 4.12 8.99 6.08 11.9 3.49 3.40 5.08
MW-30 (Class II)
Nitrate + Nitrite (as N)
(mg/L)2.5
1/20/2016
14.6
2/10/2016
20.0
3/2/2016
17.8
4/13/2016
18 17.3
6/14/2016
18.5
7/13/2016
16.1 18.0
9/14/2016
17
10/5/2016
17.2
11/3/2016
18.0
12/6/2016
18.2
Chloride (mg/L)128 143 145 142 144 139 142 137 150 146 148 143 158
Uranium (ug/L)8.32 8.34 7.76 7.82 7.55 8.18 7.66 8.10 8.23 8.22 1M 7.92 8.63
Field pH (S.U.)6.5 - 8.5 6.45 6.94 6.51 6.84
5/4/2016
6.30 6.28 6.23
8/18/2016
6.86 6.60 6.87 6.94 6.34
Fluoride (mg/L)0.51 NA 0.360 <10.00 0.359 0.346 0.36 0.36 0.399 0.368 0.376 0.375 0.385
Selenium (ug/L)34 41.7 42.5 43.2 41.0 42.5 41.8 42.7 43.1 43.0 42.8 43.4 42.1
MW-31 (Class III)
Nitrate + Nitrite (as N)
(mg/L)5
1/19/2016
18.9
2/15/2016
18.8
3/2/2016
18.0
4/12/2016
22.8 18.6
6/15/2016
19.2
7/12/2016
17.4 19.7 18.6
10/4/2016
18.8
11/1/2016
19.8 18.5
TDS (mg/L)1320 1560 1490 1580 1710 1550 1580 1610 1710 1570 1670 1690 1670
Chloride (mg/L)143 228 246 228 254 243 252 241 272 254 260 267
12/5/2016
274
Selenium (ug/L)71 85.1 81.0 85.7 81.6 5/3/2016 84.6 83.3 85.6 8/16/2016 85.4 9/13/2016 85.5 88.2 89.0 87.1
Field pH (S.U.) 6.5 - 8.5 7.04 7.21 6.83 6.93 6.48 7.01 6.49 6.92 6.35 6.99 6.92 6.79
Uranium (ug/L)9.1 NS 8.41 NS NS 9.05 NS NS 9.41 NS NS 9.56 10.3
Sulfate (mg/L)532 675 631 654 715 699 748 712 766 703 720 752 748
MW-35 (Class II)
Manganese (ug/L) 200
1/19/2016
211
2/10/2016
194
3/2/2016
194 213 203 228 210 204 198 196 224 189
Gross Alpha minus Rn & U
(pCi/L)3.75 6.95 2.42 3.88 3.65 3.22 5.39 3.64 2.56 3.68 2.65 3.33 2.80
Field pH (S.U.)6.5 - 8.5 6.35 6.70 6.53 4/12/2016 6.51 5/3/2016 6.22 6/15/2016 6.20 7/12/2016 6.28 8/16/2016 6.65 9/13/2016 6.21 10/4/2016 6.73 11/9/2016 6.30 12/5/2016 6.50
Selenium (ug/L)12.5 8.62 14.4 20.2 9.2 12.9 6.18 8.60 16.80 18.50 14.0 10.50 21.90
Uranium (ug/L) 7.5 21.1 20.8 21.8 19.9 21.2 19.4 21.5 22.2 22.0 21.0 22.0 24.0
Required Semi-Annual Sampling Write
MW-01 (Class II)
Chloride (mg/L)22.1 NA
2/10/2016
22.1
NS
NA NA
4/20/2016
22.0
NS
NA
NS
NA 21.5
NS
NA
NS
NA
11/8/2016
23.7
NS
NA
Field pH (S.U.)6.77 - 8.5 NS NA 7.06 NA NS NA 6.36 NA NA 8/24/2016 7.21 NA NA 6.54 NA
Sulfate (mg/L)838 NA 812 NA NA 825 NA NA 866 NA NA 720 NA
MW-03A (Class HI)Field pH (S.U.)6.5 - 8.5
NS
NA
2/16/2016
7.08
NS
NA
NS
NA
4/27/2016
6.43
NS
NA
NS
NA
9/22/2016
6.79
NIC
NA
NS
NA
11 /fi/on 1
6.35
NS
NA
Sulfate (mg/L)3640 NA 3580 NA NA 3580 NA NA 3390 NA NA
1 1/o/ZUlO 3440 NA
Selenium (ug/L)89 NA 91.5 NA NA 103 NA NA 75.7 NA NA 142 NA
MW-05 (Class II)Field pH (S.U.)6.5 - 8.5 NS NA 2/15/2016 7.44 NS NA NS NA 4/21/2016 6.92 NS NA NS NA 8/19/2016 7.29 NS NA NS NA 11/9/2016 6.81 NS NAUranium (ug/L)7.5 1.15 0.869 0.688 0.661
MW-12 (Class III)
Selenium (ug/L)25
NS
NA
2/4/2016
23.8
NS
NA
NS
NA 31.2 NA NA 27.7 NA NA
11/8/2016
29.3 NA
Field pH (S.U.)6.5 - 8.5 NA 6.36 NA NA 4/21/2016 6.31 NS NA NS NA 8/19/2016 6.84 NS NA NS NA 6.43 NS NA
MW-15 (Class III)Selenium (ug/L)128.7 NS NA 2/4/2016 123 NS NA NS NA Anincwfx 126 NA NS NA 8/18/2016 110 KTC NA NIC NA 11/3/2016 112 NS NA
Field pH (S.U.)6.62 - 8.5 NA 6.30 NA NA 6.02 IN5 NA NA 6.71 NA
INo
NA 6.68 NA
012016 Results 02 2016 Results Q3 2016 Q«K116
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in
August 24,
2012 GWDP
January 2016
Monthly
Sample Date
January
2016
Monthly
Result
Q1 2016
Sample Date
Q1 2016
Result
March 2016
Monthly
Sample Date
March 2016
Monthly
Result
April 2016
Monthly
Sample Date
April 2016
Monthly
Result
Q2 20I6
Sample Date
Q2 2016
Result
June 2016
Monthly
Sample Date
June 2016
Monthly
Result
July 2016
Monthly
Sample Date
July 2016
Monthly
Result
Q3 2016
Sample Date
Q3 2016
Result
September 2016
Monthly Sample
Date
September 2016
Monthly Result
October 2016
Monthly
Sample Date
October 2016
Monthly
Result
Q4 2016
Sample Date
04 2016
Result
December 2016
Monthly
Sample Date
December 2016
Monthly Result
Required Semi-Annual Jsampling Wells. continued
MW-18 (Class HI)
Thallium (ug/1)1.95 NA
2/9/2016
2.67
NS
NA NA 2.77
NS
NA
NS
NA 2.58 NA
NS
NA 2.73 NA
Sulfate (mg/L)1938.9 NA 1890 NA NA 1890 NA NA 1960 NA NA 1780 NA
Field pH (S.U.)6.25-8.5 NS NA 6.10 NA NS NA 4/19/2016 5.93 NA NA 8/23/2016 6.64 NS NA NA 11/2/2016 6.55 NS NA
TDS (mg/L) 3198.77 NA 3130 NA NA 3190 NA NA 3180 NA NA 3140 NA
MW-19 (Class 10)Field pH (S.U.)6.78-8.5
NS
NA
2/9/2016
6.76
NS
NA
NS
NA
4/19/2016
6.25
NS
NA
NS
NA
8/23/2016
7.07
NS
NA
NS
NA
11/7/2016
6.47
NS
NA
Nitrate + Nitrite (as N)
(mg/L)2.83 NA 2.44 NA NA 2.63 NA NA 2.62 NA NA 2.68 NA
MW-23 (Class III)Field pH (S.U.)6.5 - 8.5 NS NA NS NA NS NA NS NA 5/18/2016 6.59 NS NA NS NA NS NA NS NA NS NA 11/16/2016 6.26 NS NA
MW-24 (Class in)
Cadmium (ug/L)2.5 NA
2/17/2016
6.31
NS
NA NA 6.07
NS
NA
NS
NA 3.97
NS
NA
NS
NA
11/2/2016
3.67 NA
Fluoride (mg/L)0.36 NA 0.117 NA NA 0.446 NA NA 0.135 NA NA 0.345 NA
Sulfate (mg/L)2903 NS NA 2750 NA NS NA 4/28/2016 2760 NA NA 9/22/2016 2460 NA NA 2490 NS NA
Thallium (ug/L)1 NA 2.04 NA NA 2.10 NA NA 1.57 NA NA 1.46 NA
Field pH (S.U.) 6.5 - 8.5 NA 5.95 NA NA 4.83 NA NA 6.00 NA NA 5.48 NA
Nitrate + Nitrite (as N)
(mg/L)5.6 NA 6.50 NA NA 7.40 NA NA 6.46 NA NA 6.89 NA
MW-27 (Class III)Chloride (mg/L)38 NS NA 2/2/2016 47.3 NS NA NS NA 4/20/2016 43.1 NS NA NS NA 8/24/2016 42.3 NS NA NS NA 11/1/2016 43.2 NS NA
Field pH (S.U.) 6.5 - 8.5 NA 6.59 NA NA 6.54 NA NA 7.36 NA NA 6.93 NA
TDS (mg/L)1075 NA 1050 NA NA 1020 NA NA 960 NA NA 908 NA
Chloride (mg/L)105 NA 130 NA NA 121 NA NA 127 NA NA 126 NA
Cadmium (ug/L)5.2 NA 5.26 NA NA 4.90 NA NA 5.14 NA NA 4.84 NA
MW-28 (Class III)Uranium (ug/L) 4.9 NS NA 2/2/2016 4.61 NS NA NS NA 4/20/2016 3.95 NS NA NS NA 9/1/2016 4.71 NS NA NS NA 11/1/2016 4.09 NS NA
Vanadium (ug/L)30 NA <15.0 NA NA <15.0 NA NA <15.0 NA NA <15.0 NA
Field pH (S.U.)6.1 -8.5 NA 5.46 NA NA 5.73 NA NA 6.56 NA NA 6.21 NA
TDS (mg/L)4400 NA 4410 NA NA 4100 NA NA 4410 NA NA 4090 NA
MW-29 (Class HI)Sulfate (mg/L) 2946 NS NA 2/10/2016 2710 NS NA NS NA 4/27/2016 2730 NS NA NS NA 9/1/2016 2750 NS NA NS NA 11/8/2016 2290 NS NA
Field pH (S.U.)6.46 - 8.5 NA 6.47 NA NA 6.03 NA NA 6.78 NA NA 6.35 NA
Chloride (mg/L)35.39 NA 38.2 NA NA 36.3 NA NA 38.3 NA NA 39.1 NA
MW-32 (Class III)Sulfate (mg/L)2556.70 NS NA 2/3/2016 NA NS NA NS NA 4/20/2016 2220 NS NA NS NA 8/17/2016 NA NS NA NS NA 10/31/2016 2590 NS NA
Field pH (S.U.)6.4 - 8.5 NA 5.99 NA NA 6.06 NA NA 6.29 NA NA 6.38 NA
Notes:
GWCL values are taken from August 24, 2012 version of GWDP.
NS = Not Required and Not Sampled
NR = Required and Not Reported
NA = Not Applicable
Exceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
Table 1 - GVVCL Exceedances for First Quarter 2017 under the August 24, 2012 GWDP
Q1 2017
GWCL in January 2017 Ol 2017 March 2017 March 7017
(Water Class)Exceeding GWCL August 24. 2012
GWDP
Monthly
Sample Date Monthly Result
1 zoi /
Sample Date Q1 2017 Result Monthly
Sample Date
IVldTCn MU /
Monthly Result Frequency
Required Quarterly Sampling Wells
MW-11 (Class II)Manganese (ug/L)131.29 1/18/2017 152 2/8/2017 162 3/6/2017 144 Quarterly
MW-14 (Class III)Field pH (S.U.)6.5 - 8.5 1/18/2017 6.36 2/2/2017 6.34 3/7/2017 6.35 Quarterly
MW-25 (Class III)
Field pH (S.U.)6.5 - 8.5
1/17/2017
6.40
2/7/2017
6.34
3/7/2017
6.62 Quarterly
Cadmium (ug/L)1.5 1.42 1.45 1.46 Quarterly
Uranium (ug/L)6.5 6.54 6.60 6.39 Quarterly
Nitrate + Nitrite (as N)
(mg/L)0.62 0.875 0.662 1.72 Quarterly
Uranium (ug/L) 41.8 59.0 61.9 30.9 Quarterly
Chloroform (ug/L)70 1380 1740 2030 Quarterly
MW-26 (Class III)Chloride (mg/L)58.31 1/19/2017 60.7 2/9/2017 57.1 3/7/2017 61.7 Quarterly
Field pH (S.U.)6.74 - 8.5 6.67 6.42 6.06 Quarterly
Methylene Chloride
(ug/L)5 3.65 4.12 9.46 Quarterly
Nitrate + Nitrite (as N)
(mg/L)2.5 19.0 17.4 18.1 Quarterly
Chloride (mg/L)128 150 150 147 Quarterly
Uranium (ug/L)8.32 8.01 7.62 7.89 Quarterly
MW-30 (Class II)
Reid pH (S.U.)6.5 - 8.5
1/18/2017
6.61
2/2/2017
6.40
3/7/2017
6.68 Quarterly
Huoride (mg/L)0.51 0.373 0.374 0.351 Quarterly
Selenium (ug/L)34 43.0 40.0 40.8 Quarterly
Nitrate + Nitrite (as N)
(mg/L)5 20.9 21.1 20.4 Quarterly
TDS (mg/L)1320 1730 1680 1690 Quarterly
Chloride (mg/L)143 287 266 250 Quarterly
MW-31 (Class III)Selenium (ug/L)71 1/17/2017 82.7 89.4 3/6/2017 82.9 Quarterly
Field pH (S.U.) 6.5 - 8.5 6.75 6.30 6.39 Quarterly
Uranium (ug/L)9.1 9.03 9.92 9.62 Quarterly
Sulfate (mg/L)532 809 751 741 Quarterly
Manganese (ug/L)200 216 189 201 Quarterly
Gross Alpha minus Rn
& U (pCi/L)3.75 3.81 3.19 4.13 Quarterly
MW-35 (Class II)Field pH (S.U.)6.5 - 8.5 1/18/2017 6.39 6.28
3/6/2017 6.36 Quarterly
Selenium (ug/L)12.5 8.93 19.30 8.09 Quarterly
Uranium (ug/L)7.5 21.2 21.1 20.7 Quarterly
Requiifed Semi-Annual Sampling Wells
Chloride (mg/L)22.1 NA 22.8 NA Semi-Annually
MW-01 (Class II)Field pH (S.U.)6.77 - 8.5 NS NA 1/31/2017 6.60 NS NA Semi-Annually
Sulfate (mg/L)838 NA 799 NA Semi-Annually
MW-03A (Class III)Reid pH (S.U.)6.5 - 8.5
NS
NA
2/9/2017
6.50
NS
NA Semi-Annually
Sulfate (mg/L)3640 NA 2800 NA Semi-Annually
Selenium (ug/L)89 NA 85.2 NA Semi-Annually
MW-05 (Class II)Reid pH (S.U.)6.50 NS NA 1/25/2017 6.46 NS NA Semi-Annually
Uranium (ug/L) 7.5 145 Semi-Annually
Selenium (ug/L)25 NA 34.6 NA Semi-Annually
MW-12 (Class III)Field pH (S.U.)6.5 - 8.5 NS NA 1/25/2017 6.71 NS NA Semi-Annually
MW-15 (Class III)Selenium (ug/L)128.7 MC NA
1 /74/7017 112 MC NA Semi-Annually
Field pH (S.U.)6.62 - 8.5 NA 6.67 1X0 NA Semi-Annually
Q1 2017
Monitoring Well
(Water Class)
Constituent
Exceeding GWCL
GWCL in
August 24,2012
GWDP
January 2017
Monthly
Sample Date
January 2017
Monthly Result
Q1 2017
Sample Date Q1 2017 Result
March 2017
Monthly
Sample Date
March 2017
Monthly Result
Sample
Frequency
Required Semi-Annual Sampling Wells, continued
MW-18 (Class HI)
Thallium (ug/1)1.95
NS
NA 2.41
NS
NA Semi-Annually
Sulfate (mg/L)1938.9 NA 1750 NA Semi-Annually
Field pH (S.U.)6.25-8.5 NA 2/1/2017 6.30 NA Semi-Annually
TDS (mg/L)3198.77 NA 3060 NA Semi-Annually
MW-19 (Class IH)Field pH (S.U.) 6.78-8.5
NS
NA
1/31/2017
6.50
NS
NA Semi-Annually
Nitrate + Nitrite (as N)
(mg/L)2.83 NA 2.77 NA Semi-Annually
MW-23 (Class HI)Field pH (S.U.)6.5 - 8.5 NS NA 1/31/2017 6.45 NS NA Semi-Annually
MW-24 (Class HI)
Cadmium (ug/L)2.5
NS
NA 2.18 NA Semi-Annually
Fluoride (mg/L)0.36 NA 0.189
NS
NA Semi-Annually
Sulfate (mg/L)2903 NA 3/8/2017 2470 NA Semi-Annually
Thallium (ug/L)1 NA 1.04 NA Semi-Annually
Field pH (S.U.)6.5 - 8.5 NA 4.96 NA Semi-Annually
MW-27 (Class III)
Nitrate + Nitrite (as N)
(mg/L)5.6
NS
NA 7.24
NS
NA Semi-Annually
Chloride (mg/L)38 NA 1/24/2017 41.1 NA Semi-Annually
Field pH (S.U.)6.5 - 8.5 NA 6.85 NA Semi-Annually
TDS (mg/L)1075 NA 928 NA Semi-Annually
MW-28 (Class HI)
Chloride (mg/L)105
NS
NA 131
NS
NA Semi-Annually
Cadmium (ug/L)5.2 NA 5.23 NA Semi-Annually
Uranium (ug/L)4.9 NA 1/25/2017 5.68 NA Semi-Annually
Vanadium (ug/L) 30 NA <15 NA Semi-Annually
Field pH (S.U.)6.1 - 8.5 NA 6.17 NA Semi-Annually
MW-29 (Class HI)
TDS (mg/L)4400
NS
NA 4200
NS
NA Semi-Annually
Sulfate (mg/L)2946 NA 1/26/2017 2670 NA Semi-Annually
Field pH (S.U.)6.46 - 8.5 NA 6.90 NA Semi-Annually
Chloride (mg/L)35.39 NA 31.9 NA Semi-Annually
MW-32 (Class III)Sulfate (mg/L)2556.70 NS NA 2/1/2017 2090 NS NA Semi-Annually
Field pH (S.U.)6.4 - 8.5 NA 6.19 NA Semi-Annually
Notes:
GWCL values are taken from August 24, 2012 version of GWDP.
NS = Not Required and Not Sampled
NR = Required and Not Reported
NA = Not Applicable
Exceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.