DRC-2015-008346 - 0901a068805b1fad

ENERGYFUELS
Energy Fuels Resources (USA) Inc.
225 Union Blvd. Suite 600
Lakewood, CO, US, 80228
303 974 2140
www.energyfuels.com
November 18, 2015 Div of Waste Management
and Radiation Control
Scott Anderson,
VIA PDF AND OVERNIGHT DELIVERY NOV 2 0 2015
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
Re: State of Utah Ground Water Discharge Permit No. UGW370004
White Mesa Uranium Mill - Notice Pursuant to Part I.G.I (a)
Dear Mr. Anderson:
The White Mesa Mill (the "Mill") performed third quarter ("Q3") groundwater monitoring during the
period from July 1, to September 30, 2015 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 October 28, 2015.
Pursuant to Part I.G.I.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 I.G.I 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 Q3 2015 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") (formerly Division of Radiation Control
["DRC"]) 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
Letter to Mr. Scott Anderson
November 18,2015
Page 2
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. EFRI's 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
EFRI's 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 arid 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, and March 19, 2014 and the Plan and Time
Schedules submitted May 19, and September 10, 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, and June 5, 2014 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
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
Letter to Mr. Scott Anderson
November 18, 2015
Page 3
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 Q3 2015. A 30-day plan and schedule contemplated in Part I.G.I c)
of the GWDP will not be required for the consecutive exceedances below for the reasons stated 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 to DWMRC October 10, 2012, May 8, 2013, August 30, 2013, December 17, 2013, January 13,
2014, March 19, 2014 and the Plan and Time Schedules submitted May 19, and September 10, 2015.
MW-11
• Manganese concentrations exceeded the GWCL in MW-11 in all of the Q3 2015 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-26
• Nitrate + nitrite has exceeded its GWCL in all of the Q3 2015 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 for all of the Q3 2015 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.
• The uranium concentration exceeded its GWCL in all of the Q3 2015 sampling events. This
consecutive exceedance is addressed in the SAR, dated October 10, 2012. As a result of the SAR,
Letter to Mr. Scott Anderson
November 18,2015
Page 4
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 in the Q3 2015 (August) and
September monthly 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 all of the Q3 2015 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.
• Methylene chloride has exceeded its GWCL in the June monthly and July monthly sampling
events. MW-26 is used as a pumping well for the ongoing chloroform capture program and is
expected to yield increased concentrations of methylene chloride. 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-30
• Nitrate + nitrite has exceeded its GWCL in all of the Q3 2015 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 Q3 2015 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 Q3 2015 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.
Letter to Mr. Scott Anderson
November 18,2015
Page 5
MW-3]
• Nitrate + nitrite has exceeded its GWCL in all of the Q3 2015 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 Q3 2015. 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 monitoring periods for Q3 2015. This
consecutive exceedance is addressed in the SAR, dated October 10, 2012 and in the Plan and
Time Schedule submitted May 19, 2015. As a result a plan and schedule to address this
consecutive exceedance is not necessary and will not be submitted.
• The selenium concentration exceeded its GWCL in all of the monitoring periods for Q3 2015.
This consecutive exceedance is addressed in the SAR, dated August 20, 2013 in the Plan and
Time Schedule submitted May 19, 2015. As a result a plan and schedule to address this
consecutive exceedance is not necessary and will not be submitted.
• The Total Dissolved Solids ("TDS") exceeded its GWCL in all of the monitoring periods for Q3
2015. This consecutive exceedance is addressed in the SAR, dated August 20, 2013 in the Plan
and Time Schedule submitted May 19, 2015. As a result a plan and schedule to address this
consecutive exceedance is not necessary and will not be submitted.
MW-35
• The uranium concentration exceeded the GWCL in MW-35 in all of the Q3 2015 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.
• The gross alpha minus Rn and U ("gross alpha") concentration exceeded the GWCL in MW-35 in
the June and July 2015 monthly 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
Letter to Mr. Scott Anderson
November 18, 2015
Page 6
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 the Q3 2015 (August) and
September 2015 monthly 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.
• The selenium concentration exceeded the GWCL in MW-35 in all of the Q3 2015 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 DRC on May 1, 2014. As a result of the
Background Report, the GWCLs have been calculated and accepted by DRC 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 DRC'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 Q3
One new single exceedance for the Q3 2015 quarterly well sampling program is listed below. These
exceedances will result in an accelerated sampling frequency from quarterly to monthly. It is important to
note that the well listed below will only be sampled monthly for the constituents which exceeded their
GWCL. The well listed below will be sampled for all constituents listed in the GWDP during the
quarterly events as that is the regularly scheduled sampling for the well.
• Chloride in MW-25 was above the GWCL in the Q3 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,
Letter to Mr. Scott Anderson
November 18, 2015
Page 7
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.
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 (Q2 2015 and Q3 2015).
MW-1
• Sulfate has exceeded the GWCL for both the Q2 2015 sampling event and the Q3 2015 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-3
• Fluoride has exceeded the GWCL for both the Q2 2015 sampling event and the Q3 2015
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 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.
• Selenium has exceeded the GWCL for both the Q2 2015 sampling event and the Q3 2015
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 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 Q2 2015 sampling
event and the Q3 2015 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.
Letter to Mr. Scott Anderson
November 18, 2015
Page 8
• Sulfate has exceeded the GWCL for both of the samples the Q2 2015 sampling event and the Q3
2015 sampling event. This is the first consecutive exceedance for sulfate in MW-3. Therefore, a
plan and schedule for assessment will be submitted under separate cover within 30 days of this
Exceedance Notice.
MW-3A
• Field pH has been slightly outside (slightly lower than) the GWCL for both the Q2 2015 sampling
event and the Q3 2015 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.
• Sulfate has exceeded the GWCL for both the Q2 2015 sampling event and the Q3 2015 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 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-18
• Thallium has exceeded the GWCL for both the Q2 2015 sampling event and the Q3 2015
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-24
• Field pH has been slightly outside (slightly lower than) the GWCL for both the Q2 2015 sampling
event and the Q3 2015sampling 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.
Letter to Mr. Scott Anderson
November 18,2015
Page 9
MW-27
• The nitrate+nitrite concentration exceeded its GWCL for both the Q2 2015 sampling event and
the Q3 2015 sampling event and during previous quarters. 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 chloride concentration exceeded its GWCL for both the Q2 2015 sampling event and the Q3
2015 sampling event and during previous quarters. 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 Q2 2015 sampling event and the Q3 2015
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.
• Field pH has been slightly outside (slightly lower than) the GWCL for both the Q2 2015 sampling
event and the Q3 2015 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-29
• Field pH has been slightly outside (slightly lower than) the GWCL for both the Q2 2015 sampling
event and the Q3 2015 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-32
• Field pH has been slightly outside (slightly lower than) the GWCL for both the Q2 2015 sampling
event and the Q3 2015 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
Letter to Mr. Scott Anderson
November 18,2015
Page 10
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 Q2 2015 sampling event and the Q3 2015
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 Q3
No new exceedances for the semi-annual wells were noted during Q3 2015.
Yours truly, »
ENERGY FUELS RESOURCES (USA) INC.
Kathy Weinel
Quality Assurance Manager
cc: David Frydenlund
Harold Roberts
David Turk
Logan Shumway
Scott Bakken
Table 1 - GWCL Exceedances for Third Quarter 2015 under the August 24. 2012 GWDP
Ql 2010 Results Q2 2010 Results Q3 2010 Results Ql 2010 Results
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in
August 24, 2012
GWDP
Ql 2010 Sample
Date
Ql 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 Wells
MW-11 (Class I Manganese (ug/L) 4/28/2010 137 5/24/2010 99 7/20/2010 123
MW-14 (Class III) Field pH (S.U.) 2/2/2010 6.29 6.36 7/20/2010 7.19 9/8/2010 10/20/2010 12/15/2010
Field pH (S.U.) 6.5 - 8.5 6.36
MW-25 (Class HI) Chloride (mg/L) 2/3/2010 NS 9/8/2010 NS NS
Cadmium (ug/L) 1.26
Uranium (ug/L) 6.5 6.43 6.57
Nilrale + Nitrite (as N)
(mg/L)
Uranium (ug/L) JS.7 34.4 72.7 30.4
Chloroform (ug/L) 1700 940 1000
MW-26 (Class III) Chloride (mg/L) 8/16/2010
Field pH (S.U.)
Dichloromethane
(Methylene Chloride)
(ug/L)
9.9
Nitrate + Nitrite (as N)
(mg/l.) 15.8
Chloride (mg/L)
Uranium (ug/L) NS
MW-30 (Class I 4/27/2010 6/15/2010
Field pH (S.U.) 6.5 - 8.5 7/21/2010
7/27/2010 6.80 (6.82) 8/24/2010
9/14/2010
9/21/2010 6.80 (6.84)
Ammonia (mg/L) 0.14 NA NS
Selenium (ug/L) 7/27/2010 8/24/2010 35.6
Nitrate + Nitrite (as N)
(mg/L) 6/15/2010 21.1 20 20 20
TPS (mg/L) NS 1330
MW-31 (Class III) Chloride (mg/L)
Selenium (ug/L) 2/9/2010 NS
NS
9/13/2010
(9/21/10) 11/9/2010
Field pH (S.U.) 7.80 7.66 (7.13)
Sulfate (mg/l.) NS NS
Manganese (ug/L) 698
Thallium (ug/l) 1.14
MW-35 (Class II)
Gross Alpha minus Rn &
It (pCj/L) 3.75
NS
Field pH (S.U.) 6.5 - 8.5
Selenium (ug/L)
Uranium (ug/L) NA
Required Semi-Annual Sampling Wells
MW-01 (Class II)
Tetrahydrofuran (ug/L)
Chloride (mg/L)
Field pHIS.U.)
Sulfate (mg/L)
NS 7.86 (6.87)
NA
NS
Selenium (ug/L) 37.2
Field pH(S.U.) 6.5 - 8.5 6.14 (6.25) 6.39 6.35
MW-03 (Class III) Beryllium (ug/L)
Cadmium (ug/I.) NS NS
Zinc (ug/L)
Sulfate (mg/L) 3490
Nitrate + Nitrite (as N)
(mg/L)
Fluoride (Mg/L)
Field pH (S.U.) 6.23 (6.24) 6.42 6.21
MW-3A (Class III)
Sulfate (mg/L)
Nitrate + Nitrite (as N)
(mg/L) 1.3 5/4/2010
TDS (mg/L) 5860
Selenium (ug/L) 94.8
MW-05 (Class II) Uranium (ug/I.) 7.5 NS NS 11.6
Selenium (ug/L)
MW-12 (Class III) Field pH (S.U.) 7.16
NS NS
MW-15 (Class III) Selenium (ue/L)
Field pH(S.U.) NS 11/11/2010
Ql 2010 Results Q2 2010 Results Q3 2010 Results Q4 2010 Results
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in
Current GWDP Ql Sample Date Ql 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 Sampling Wells, continued
MW-18 (Class III)
Thallium (ug/l)
Sulfate (mg/I.)
Field pH (S.U.) NS
1950
6.2 NS
3.64
6.37
3030
MW-19 (Class III) Field pH(S.U.) 6.61 (6.66) 6.8
Nitrate + Nitrite (as N)
(mg/L)
NS 9/15/2010 NS
MW-23 (Class III) Field pH (S.U.) 6.5 - 8.5 NS NS
Cadmium (ug/L)
Fluoride (mg/L)
MW-24 (Class III) Sulfate (mg/L) 5/6/2010 NS 11/17/2010
Thallium (ug/L) 1.3 1.09
Field pH (S.U.) 6.5 - 8.5 5.91 (5.7S)
Nitrate + Nitrite (as N)
(mg/I.)
MW-27 (Class III)
Chloride (mg/I-) NA 45
Sulfate img/I. 1
TPS (mg/I,) 1160 1110
Gross Alpha minus Rn &.
U(pCi/L)
Chloride (mg/L) 108 NA 106 107
Cadmium (ug/I.)
MW-28 (Class III) Uranium (ug/I.) 4/19/2010
Vanadium (ug/L) 30
Field pH (S.U.)
TPS (mg/I.) NA
MW-29 (Class III) Sulfate (mg/I.) 2946 4/27/2010 NS
Field pH (S.U.) 6.82 NA 6.17
Gross Alpha minus Rn &
U (pCi/L) 3.33
MW-32 (Class III) Chloride (mg/L) NS
Field pH(S.U.) 6.4 - 8.5
Notes:
GWCL values are taken from August 24, 2012 version of GWDP.
NS = Not Required and Not Sampled
ills — iscquiicu diiu
F.xceedances are shown in yellow
Values in () parentheses are (he field pH measurements for the resampled analyses.
Table 1 - GWCL Kxceedances for Third Quarter 2015 under the August 24, 21112 GWDP
Ql 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
Ql 2011
Sample
Date
Ql 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 ID Manganese (ug/L) 148 170 6/15/2011 9/7/2011 106
MW-14
(Class 111) Field pH (S.U.) 7/5/2011 6.23
(6.41) 9/8/2011 6.71 (6.82)
Field pH (S.U.) 6.5 - 8.5 6.44 6.79 6.1 5.77 8/3/2011
8/30/11
6.42
(6.54)
MW-25
(Class III) Chloride (mg/L) 2/2/2011 6/20/201 1 7/6/2011 8/3/2011 NA 10/4/2011 12/12/2011
Cadmium (ug/L) 8/30/2012 1.19
Uranium (ug/L) 6.5 7.02 6.72 7.06 6.74
Nitrate + Nitrite (as N)
(mg/L) 2.4
Uranium (ug/L) 32
Chloroform (ug/I.) 70 800 730 1200 390 1900 1300 440 1200
MW-26
(Class III)
Chloride (mg/l.) 58.31 1/12/201 64 8/3/2011
8/30/11
66 61
Field pH (S.U.) 6.06 6.22 6.43 6.07
(6.58)
Dichloromethane
(Methylene Chloride)
(ug/I..)
2.4
Nitrate + Nitrite (as N)
(mg/L) 16
Chloride (mg/L)
MW-30
(Class II)
Uranium (ug/L)
3/14/201
Field pH (S.U.) 5.66
10/4/2011
11/29/2011 6.96 (6.73
Ammonia (mg/L)
Selenium (ug/L) 38.3 38.7 39.7 36.6 36.8 38
Nitrate + Nitrite (as N)
(mg/L) 22 20
TDS (mg/I.)
MW-31
(Class III)
Chloride (mg/L)
Selenium (ug/L) 2/1/2011 6/20/201 1 145
NS 7/5/201 NS 8/2/2011 148 10/3/2011 145 11/8/2011
(11/29/12)
Field pH (S.U.) 7.01 (7.34)
Sulfate (mg/L) 538 532
1330
NS
Manganese (ue/L) 348 270 283
Thallium (ua/1) 0.57
MW-35
(Class II)
Gross Alpha minus Rn
& U (pCi/I.) 4.5
Field pH (S.U.) 6.49
Selenium (ug/L) NA
Uranium (ug/L) NA NA 24.2 18.3 24
0.63
4.2
Required Semi-Annual Sampling Wells
MW-01
(Class II)
Telrahydrofuran (ug/I.)
Chloride (mg/I.)
Field pH (S.U.)
Sulfate (mg/l.)
4/11/2011
18
NA NA
NS 7.08 (7.51) NS NS
Selenium (ug/I.) 40.5
Field pH (S.U.) 6.32 6.53 (6.83)
MW-03
(Class III)
Beryllium (ug/L)
Cadmium (ug/L) NS 4/13/2011 1.26 NS
Zinc (ug/L)
Sulfate (mg/L! 3663
Nitrate + Nitrite (as N)
(mg/I.) 0.3
Fluoride (Mg/I.) 0.69
Field pH (S.U.) 6.19 6.5 (6.92)
MW-03A
(Class III)
Sulfate (mg/I.) 3640 3730 3750
Nitrate + Nitrite (as N)
(mg/L)
TDS (mg/L) 5810
Selenium (ug/L) 95
MW-05
(Class II) Uranium (ug/L) NS NS 10/10/2011
MW-12
(Class III)
Selenium (us>/L) 39.0
Field pH (S.U.) 6.43
NS 4/5/2011
MW-15
(Class III)
Selenium (uii/L; 128.7
Field pH (S.U.) NS NS
Ql 2011 Results Q2 2011 Results Q3 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
Q12011
Sample
Date
Ql 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 Semi-Annual Sampling Wells, continued
MW-18
(Class III)
Thallium (ua/1)
Sulfate (mg/L)
Field pH (S.U.)
TDS (mg/l.)
1770
6.27 4/6/2011 NS
NA
NS
NA
8/10/2011
9/21/11 5.95
(6.30)
10/11/2011 6.55 (6.63) NS NS
MW-19
(Class III)
Field pH (S.U.) NA 6.88 (7.02)
Nitrate + Nitrite (as N)
(mg/I.) NS NS NA
MW-23
(Class III) Field pH (S.U.) 6.56 (6.77)
Cadmium (ug/I.) 2.78 2.61
MW-24
(Class III)
Fluoride (mg/L) 0.36 NA 0.36
Sulfate (mg/L) 8/4/2011 NS
Thallium (ug/I.)
Field pH (S.U.) 6.5 - 8.5 5.73 6.12
Nitrate + Nitrite (as N)
(mg/I.) 6.3
MW-27
(Class III)
Chloride (mg/I.) 46
Sulfate (mg/L)
TDS (mg/L) 1090
Gross Alpha minus Rn
&U(pCi/L)
Chloride (mg/L)
MW-28
(Class III)
Cadmium (ug/L) 5.2
Uranium (ug/L) 8/8/2011
Vanadium (ug/L)
Field pH (S.U.) 5.69 6.01 ((.07(6.11)
TDS (mg/L)
MW-29
(Class HI)
Sulfate (mg/L) 2946 NS
Field pH (S.U.)
MW-32
(Class III)
Gross Alpha minus Rn
& U (pCi/L) 3.33
Chloride (mg/L) 2/9/2011 NS 4/1/201 8/2/2011
8/30/11
Field pH (S.U.) 6.4 - 8.5 6.10
(6-20) 6.35
Notes:
GWCL values are taken from August 24.
version of GWDP.
NS = Not Required and Not Sampled
2012
Exceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
Table 1 - GWCL Exceedances for Third Quarter 2015 under the August 24. 2012 GWDP
Ql 2012 Results Q2 2012 Results Q3 2012 Results Q4 2012 Results
Monitoring Well
(Water Class)
Constituent
Exceeding GWCL
GWCL in
August 24,
2012 GWDP
January 2012
Monthly
Sample Date
January 2012
Monthly
Result
Ql 2012
Sample Date
Ql 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
Required Quarterly Sampling Wells
MW-11 (Class II) Manganese (ug/L) 131.29 1/26/2012 4/10/2012 132 5/8/2012 127 135 10/23/2012 12/24/2012
MW-14 (Class III) Field pH (S.U.) 6.5 - 8.5 6.36 7/11/2012 8/7/2012 9/18/2012 10/23/2012 6.52
Field pH (S.U.) 6.55 6.58
MW-25 (Class III) Chloride (mg/L) 1/25/2012 7/10/2012 8/6/2012 9/18/2012 10/22/2012
Cadmium (ug/L)
Uranium (ug/L) 6.72 6.61
Nitrate + Nitrite (as
N) (mg/L) 0.62 3.4 7/11/201
Uranium (ug/I.) 59.4
Chloroform (ug/I.)
MW-26 (Class III) Chloride (mg/L) 2/15/2012
2900 2900 1700 2400 970 2200 4720
74 82
Field pH (S.U.)
2/LV2UI2
2/21/2012
won
6.72 (6.91)
(6.71)
5/7/2012
6/26/2012 6/19/2012 85 78 8/8/201 78 9/19/201
6.39 7.00(7.01) 7/11/2012
8/16/2012
7.10
(6.80)
Dichloromelhane
(Methylene Chloride)
(ug/L)
2/15/2012 24 27 20
Nitrate + Nitrite (as
N) (mg/L) 2.5 18 16
Chloride (mg/L) 128 131 139 130 135
Uranium (ug/L) 8.38 7.03
MW-30 (Class II) 2/14/2012 3/14/2012 4/10/2012 5/2/2012 6/18/2012 7/10/2012
Field pH (S.U.) 6.86
Ammonia (mg/l.) NS
Selenium (ug/L) 38.5 38.4 36
Nitrate + Nitrite (as
N) (mg/L) 21 20 21.6
TDS (mg/I.) 1360 1400 1320
MW-31 (Class III) Chloride (mg/L)
Selenium (ug/L) 1/24/2012 2VS
6/18/2012
6/29/2012 7/9/2012 161 175 10/22/2012 157 11/6/2012 189 12/18/2012
Field pH (S.U.) 7.28 (7.63)
Sulfate (mg/L) 547
1270
170
Manganese (ue/L) 253 304 272 273 283 253 241
Thallium (ug/l) 0.65 0.71 0.61 0.54 0.517 0.554
MW-35 (Class II)
Gross Alpha minus
Rn & U (pCi/L) 6.2 4.23
1/24/2012 10/23/201 11/13/2012 12/18/2012
Field pH (S.U.) 6.35 6.48 6.43
Selenium (ug/L) 19.7
Uranium (ug/L) 24.9 22.2
240
Required Semi-Annual Sampling Wells
felrahydrofuran (ug/L
MW-01 (Class Ii) Chloride (mg/L)
Field pH (S.U.)
Sulfate [mg/L)
NA 10.3
NS 11/27/2012
846
Selenium (ug/L)
Field pH (S.U.)
MW-03 (Class III) Beryllium (ug/I.;
Cadmium ( ui>/L) NS
/.inc (ug/L)
Sulfate (mg/I.)
Nitrate + Nilrile (as
N) (mg/L) 0.73
Fluoride (Mg/I.) 1.04 0.96 1.26
Field pH (S.U.) 6.5 - 8.5
MW-03A (Class
III)
Sulfate (mg/I.) 3700
Nitrate + Nitrite (as
N) (mg/L) 1.3 NS 11/29/2012 NS
TDS (mg/L) 5730
Selenium (ug/I.)
MW-05 (Class II) Uranium (ug/L) 2/28/2012 18.6 11/27/201 NS
Selenium (us/L)
MW-12 (Class III) Field pH (S.U.)
NS NS NS
MW-15 (Class III) Selenium (ue/1.)
Field pH (S.U.) 2/22/2012 152 11/14/2012 NS
Ql 2012 Results Q2 2012 Results Q3 2012 Results Q4 2012 Results
Monitoring Well
(Water Class)
Constituent
Exceeding G WCL
GWCL in
Current
GWDP
January 2012
Monthly
Sample Date
January 2012
Monthly
Result
01 2012
Sample Date
01 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
Required Semi-Annual Sampling Wells, continued
MW-18 (Class III)
Thallium (ug/l)
Sulfate (mg/I.)
Field pH (S.U.)
TDS (mg/I.)
6.25-8.5
3.63
3230
NA 3.5/
3280
3.2
MW-19 (Class I Field pH (S.U.) 6.71
Nitrate + Nitrite (as
N)(mg/1.)
NS 5/16/2012
3.9 3.7 3.96
MW-23 (Class III) Field pH (S.U.) NS NA 5/16/201;
Cadmium (ug/L) NA 2.01
Fluoride (mg/I.) 0.36
MW-24 (Class III) Sulfate (mg/I.)
Thallium (ue/L)
NS 2490 NS 7/18/2012
1.36
Field pH (S.U.) 6.5 - 8.5 6.45 NA
NS
Nitrate + Nitrite (as
N) (mg/L) 6.7
MW-27 (Class III) Chloride (mg/I.) 45 46 44.2
Sulfate (mg/L)
TDS (mg/I.) 1170
Gross Alpha minus
Rn&U(pCi/I.)
Chloride (mg/I.) 109 114 7/16/2012
8/1/2012 115
Cadmium (ug/I.)
MW-28 (Class III) Uranium (ug/L)
Vanadium (ug/I.)
Field pH (S.U.) 7/16/2012
8/1/2012
6.38 5.98
TDS (mg/I.) 4600 8/1/2012 4430
MW-29 (Class III) Sulfate (mg/I.) NS
Field pH (S.U. 7/16/2012
8/1/2012
6.68
(6.45)
NA
NA
Gross Alpha minus
Rn & U (pCi/I.) 3.33 2.97
MW-32 (Class III) Chloride (mg/I.) 35.39 2/21/2012 NS 4/30/2012
Field pFHS.U.) 6.4 - 8.5
—Notes:
GWCL values are taken from August 24, 2012 version of
GWDP.
NS = Not Required and Not Sampled
ills — iscquneu ano
Fxeeedances are shown in yellow
Values in Q parentheses are the Held pH measurements for the resampled analyses
Table 1 - GWCL Exceedances for Third Quarter 2015 under the August 24. 2012 GWDP
Ql 2013 Results Q2 2013 Results Q3 2013 Results Q4 2013 Results
Monitoring
Well (Water
Class)
Constituent Exceeding
GWCL
GWCL in August 24
2012 GWDP
January 2013
Monthly Sample
Date
January
2013
Monthly
Result
Ql 2013
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 Quarterly Sampling Wells
MW-11 (Class
11) Manganese (ug/L) 164 5/14/2013 144 6/25/2013 9/18/2013 11/19/2013 196
MW-14 (Class
III) Field pH (S.U.) 6.48 2/26/2013 6.48 4/16/2013 9/19/2013 6.74
Field pH (S.U.) 6.65 6.41
MW-25 (Class
III) Chloride (mg/L) 2/20/2013 3/19/2013 4/17/2013 28.1 28 9/17/2013 29.6
Cadmium (ug/L) 1.35
Uranium (ug/L) 6.5 5.68
6.73
31.2
1.23
Nilratc + Nitrite (as N)
(mg/L) 1.66 1.61
Uranium (ug/L) 64.3 70 75.8
Chloroform (ug/I.) 1270 1500 1340
MW-26 (Class
III)
Chloride (mg/I.) 1/24/2013 3/20/2013 73.6 70.4 5/23/2013 6/5/2013
6/25/2013
70.8 63.8
Field pH (S.U.) 6.51 6.70
Dichtoromethane
(Methylene Chloride)
(ug/L)
6.49 8.31 52.4*
[12.1]
2.56
70.4
6.93
7.48
Nitrate + Nitrite (as N)
(mg/L) 19.2 14.3
Chloride (mg/L) 128
MW-30 (Class
II)
Uranium (ug/I.) 6.91 8.57
1/23/2013
Field pH (S.U.) 6.5 - 8.5
Ammonia (mg/L) <0.05
Selenium (ug/L) 42.3 37.3 39.4 36.3
20.7
35.1
Nitrate + Nitrite (as N)
(mg/L) 19.3 18.8 20.0
TPS (mg/l.: 1320 1540 1510 1500
MW-31 (Class
III)
Chloride (mg/I.)
Selenium (ug/L) 2/19/2013 4/16/2013 75.9 7/9/2013 75.7 72.6 11/18/2013 74.5
Field pH (S.U.) 6.5 - 8.5 6.37 7.92
Sulfate (mg/L) 611 611
1500
203
Manganese (ug/L) 272 243 252 243 262 240
Thallium (ug/l) 0.7/5 0.946
MW-35 (Class
II)
Gross Alpha minus Rn &
U (pCi/I.) 4.92 5.70 3.92 5.10 5.39
11/19/2013 12/17/2013
Field pH (S.U.)
Selenium (ug/L)
Uranium (ug/L) 23.6 22.0 23.0 20.2 24.1
260
Required Semi-Annuai Sampling Wells
MW-01 (Class
II)
Tetrafiydrofuran (ug/L)
Chloride (mg/L)
Field pH (S.U.)
Sulfate (mg/L)
6.77 - 8.5
838
3/12/2013 NS
3.26
839
7/23/2013 NS 12/4/2013
Selenium (ug/I.) 52.0
Field pH (S.U.) 7.14
MW-03 (Class
III)
Beryllium (ug/I.)
Cadmium (ug/L) 4.67 NS 3/12/2013 NS
/inc (ug/I.)
Sulfate (mg/I.) 3663
Nitrate + Nitrite (as N)
(mg/L) 0.456 1.21
Fluoride (Mg/L) 0.902 0.994
Field pH (S.U.)
MW-03A (Class
III)
Sulfate (mg/I.)
Nitrate + Nitrite (as N)
(mg/L)
NS NS NS 12/11/2013 1.52
5860 5940
Selenium (ug/I.)
MW-05 (Class
II) Uranium (ug/L) 3/11/2013 5/14/2013 12/4/2013 20.1
MW-12 (Class
III)
Selenium (ug/L)
Field pH (S.U.) 6.5 - 8.5 NS 3/6/2013 NS
MW-15 (Clasi
Ill)
Selenium (ug/I.)
Field pH(S.U.) 6.62 - 8.5 7/18/2013 6.68 NS NS 1/20/2013 NS
Ql 2013 Results Q2 2013 Results Q3 2013 Results Q4 2013 Results
Monitoring
Well (Water
Class)
Constituent Exceeding
GWCL
GWCL in Current
GWDP
January 2013
Monthly Sample
Date
January
2013
Monthly
Result
Ql 2013
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 Semi-Annual Sampling Wells, continued
MW-18 (Class
III)
Thallium (ug/I)
Sulfate (mg/L;
Field pH (S.U.)
TDS (mg/L)
NS
NA 2.81
I860
3170
3.06
2000
3240
MW-19 (Class
III)
Field pH (S.U.) 6.91 6.58
7/15/2013 NS NS NS
Nitrate + Nitrite (as N)
(mg/L) 3.66 3.70
MW-23 (Class
III) Field pH (S.U.) 6.37 7/18/2013 NS NS NS
Cadmium (ua/L)
MW-24 (Class
III)
Fluoride (mg/L)
Sulfate (mg/I.) 3/13/2013 5/22/2013 NS
Thallium (ug/L) 1.64
Field pH (S.U.) 6.5 - 8.5 6.29
Nitrate + Nitrite (as N)
(mg/I.) 7.94 7.09
MW-27 (Class
III)
Chloride (mg/l.) 44.2 45.0
Sulfate (mg/I.) 462
TDS (mg/L) 1110 1100
Gross Alpha minus Rn &
U (pC\l\.) NA
NA
NA
Chloride (mg/L) 109
MW-28 (Class
III)
Cadmium (ug/I.)
Uranium (ug/L) 3.58
Vanadium (ug/I.)
Field pH (S.U.) 6.00
TDS (mg/L)
MW-29 (Class
III)
Sulfate (mg/I.) 5/23/2013
Field pH (S.U.) 6.35
MW-32 (Class
III)
Gross Alpha minus Rn &
U (pOll.) 3.33 5.02 3.72
Chloride (mg/L) 35.39 NS 2/19/2013 NS NS NS 11/18/2013
Field pH (S.U.) 6.4-8.5
Notes:
GWCL values are taken from August 24, 2012 version of GWDP.
NS = Not Required and Not Sampled
INIV — ixcquueu
Exceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
Table 1 - GWCL Exceedances for Third Quarter 2015 under Che August 24, 2012 GWDP
Ql 2014 Results Q2 2014 Results Q3 2014 Results Q4 2014 Results
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
Ql 2014
Sample
Date
Ql 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 Sampling Wells
MW-11 (Clas:
11) Manganese (ug/I.) 131.29 2/24/2014 163 134 5/14/2014 128 6/3/2014 166 9/8/2014 10/6/2014 125 12/10/2014
MW-14 (Class
111) Field pH (S.U.) 6.5 - 8.5 6.16 5/13/2014 6/3/2014 8/20/2014 6.41 6.46 6.25 6.40
Field pH (S.U.) 6.10 6.27 6.49
MW-25 (Class
III) Chloride (mg/I.) 4/28/2014 5/13/2014 26.4 6/2/2014 7/28/2014 8/18/2014 30
Cadmium (ug/I.) 1.5 1.30 1.30
Uranium (ug/L) 6.26 10.6 7.43
Nitrate + Nitrite (as N)
(mg/I.) 1.10 0.704
Uranium (ug/L) SI.7 90.6 74.4 48.4 66.0
Chloroform (ug/L) 2800 894
MW-26 (Class
HI)
Chloride (mg/L) 58.31 70.4 3/12/2014 61.0 62.1 6/5/2014 63.2 57.7 12/10/14
12/15/14
Field pH (S.U.) 6.50
Dichloromethane
(Methylene Chloride)
(ug/L)
6.52 25.8 43.3 10.9 7.34
42.5
6.25 (6.44)
28.4
Nitrate + Nitrite (as N)
(mg/L) 20.3 18.4 13.8 16.8 11.0 16.2
Chloride (mg/L) 135 144
MW-30 (Class
II)
Uranium (ug/L) 9.82 7.35
2/25/2014 9/9/2014 10/7/2014 12/10/2014
Field pH (S.U.)
Ammonia (mg/I.)
Selenium (uit/L) 37.0 35.4 42.9
Nitrate + Nitrite (as N)
(mg/L) 26.2 19.1 23.1 15.9
TDS (mg/L) 1510 1440 1510 1400 1410 1520
MW-31 (Class
III)
Chloride (mg/L) 230
Selenium (ug/L) 74.5 6/2/2014 7/28/2014 210 205
77.9 82.8 73.0
Field pH (S.U.)
Sulfate (mg/L) 558 639 620 560 606 687
Manganese (ug/L) 204 202
Thallium (ug/l) 0.582
MW-35 (Class
II)
Gross Alpha minus Rn &
U(pCi/L) 4.12 2.95 4.70 3.92
7/29/2014
Field pH (S.U.) 6.32
Selenium (ug/L) 17.0 13.2 28.9
Uranium (ua/L) 20.6 20.6 26.9 20.3 19.6
4.54
20.3
Required Semi-Annual Sampling Wells
MW-01 (Class
Tetrahydrofuran (ug/L)
Chloride (ma/I.)
Field pH (S.U.)
Sulfate (mg/I.)
22.1 NS
NA
5/28/2014
Selenium (ug/I.) 94.0 62.4
Field pH (S.U.)
MW-03 (Class
III)
Beryllium (ug/L)
Cadmium (ug/I.) 2/26/2014 NS
Zinc (ug/I.)
Sulfate (mg/L) 3663 NA
Nitrate + Nitrite (as N)
(mg/I.) 0.573
Fluoride (Mg/l.) 0.77/ 1.0
Field pH (S.U.) 6.41
MW-03A (Class
III)
Sulfate (mg/I.) 3640
Ni[ra(e + Nitrite (as N)
(mg/I.)
TDS (mg/I.)
Selenium (ug/L) 104
MW-05 (Class
m Uranium (ug/L)
MW-12 (Class
III)
Selenium (ug/L)
Field pH (S.U.) 6.5 - 8.5
2/12/2014 NS 9/16/2014 6.47 6.25
MW-15 (Clas:
III)
Selenium (ug/L:
Field pHlS.U.) 6.62 - 8.5 NS 6/4/2014 273
6.38 6.41
Ql 2014 Results Q2 2014 Results Q3 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
Ql 2014
Sample
Date
Ql 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
Required Semi-Annual Sampling Wells, continued
MW-18 (Class
III)
Thallium (ue/1)
Sulfate (mg/L)
Field pH (S.U.)
TDS (mg/I,)
NS
3080
NS NS
NA
3260
6.10
MW-19 (Class
III)
Field pH (S.U.) 6.33
Nitrate + Nitrite (as N)
(mg/l,)
5/27/2014 NS NS 9/11/2014 11/11/2014
3.68 2.91
MW-23 (Class
HI) Field pH (S.U.) NS 6/11/2014 6.67 NS NS 9/4/2014 NS 11/19/2014 NS
Cadmium (ug/L) 2.91
MW-24 (Class Fluoride (mg/L) 0.36 0.4
Sulfate (mg/L) 3120
Thallium (ug/I.)
Field pH (S.U.) 5.89
NS
Nitrate + Nitrite (as N)
(mg/L) 7.98
MW-27 (Class
III)
Chloride (mg/I,) 45.9 46.0 42.6
Sulfate (mg/l,) 462 5/28/2014 NS 9/8/2014
TDS (mg/L) 1090
Gross Alpha minus Rn &
U(pCi/L) NA
NS
Chloride (mg/I,) 112
MW-28 (Class
III)
Cadmium (ug/L) 5.2 NA
Uranium (ug/L) 10.6 21.2
Vanadium (ug/L) 29.3
Field pH (S.U.)
TDS (mg/L)
MW-29 (Class
III)
Sulfate (mg/I,)
Field pH (S.U.) 6.10 6.11
NS
MW-32 (Class
III)
Gross Alpha minus Rn t
U (pCi/L) 9/2/2014 3.69
Chloride (mg/L) 35.39 5/23/2014 NS
Field pH (S.U.) 6.15
8/26/2014
9/2/2014 6.17
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
Hxceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
Table 1 - GWCL Exceedances for Third Quarter 2015 under the August 24. 2012 GWDP
Ql 2015 Results Q2 2015 Results Q3 2015 Results
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in
August 24,
2012 GWDP
January 2015
Monthly
Sample Date
January 2015
Monthly
Result
Ql 2015
Sample Date
Ql 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
Sample
Frequency
Required Quarterly Sampling Wells
MW-11 (Class II) Manganese (ug/L) 3/3/2015 149 4/8/2015 170 5/11/2015 149 178 Quar
MW-14 (Class III) Field pH (S.U.) 3/5/2015 6.55 6.30 8/11/2015 9/16/2015 Quari
Field pH (S.U.) 6.5 - 8.5 6/1/2015
6/23/2015 6.59. 6.53 6.47 Quari
MW-25 (Class III) Chloride (mg/L) 2/4/2015 31.1 7/6/2015 8/10/2015 9/15/2015 Quar
Cadmium (ug/I.) 1.37 1.27
Uranium (ug/L) 6.5 6.54 6.S1
6/23/2015 Quar
Quan
Nitrate + Nitrite (as N)
(mg/I.) 0.845 0.606 1.15 Quari
Uranium (ug/l.) 78.1 72.6 75.7 63.3 Quari
Chloroform (ug/L) 2610 2560 1240 Quari
MW-26 (Class III) Chloride (mg/L) 1/21/2015 67.4
Field pH (S.U.) 6/3/2015
6/24/2015
8/10/2015
8/17/2015
88.3 9/16/2015 Quari
6.58, 6.20 Quari
Dichloromethane
(Methylene Chloride)
(ug/I.)
3.99 9.38 Quar
Nilrate + Nitrite (as N)
(mg/I.) 16.1 15.8 Quari
Chloride (me/L) 142 145 165 165 Quari
Uranium (ug/L) 8.32 8.23 8.35 8.38 7.72 Quari
MW-30 (Class II) 3/3/2015 4/8/2015 5/12/2015
Field pH (S.U.) 6.5-8.5 6.4/ 6.32 6/2/2015
6/24/2015 6.94, 6.32 Quari
Ammonia (mg/I.) 0.14
Selenium (ug/I.)
6/24/2015 0.0692 Quar
41.6 39.1 Quar
Nitrate + Nitrite (as N)
(mg/I.) 18.8 Quar
TDS (mg/I.) 1320 /5J0 1680 1700 1480 Quari
MW-31 (Class III) Chloride (mg/L) 228 222 264
Selenium (ug/L) 79.2 76.2 75.7 7/. 6
9/15/2015 Quari
79.0 Quar
Field pH (S.U.) 6.42 6.40 6/1/2015
6/23/2015 7.14, 7.08 Quar!
Sulfate (mg/l.) 66* 691 638 Quari
Manganese (ug/L) 228 223 201, 176 Quad
Thallium (ug/l) 0.5 <0.5. <0.5 Quar
MW-35 (Class II)
Gross Alpha minus Rn &
U (pCi/L) 3.81 4.25
Field pH (S.U.) 6.5 - 8.5 6.22 6.26 6/2/2015
6/23/2015
8/10/2015
6.56 6.40
9/15/15
9/22/15
9/28/15
4.81,6.13 Quar1
6.52, 6.41,
6.49 Quari
Selenium (ug/l.) 26.6 Quar
Uranium (ue/L; 24.4 20.2 22.5 21.3, 22.3 Quar
Required Semi-Annual Sampling Wells
MW-01 (Class II)
ctrahydrofuran (ug/T/
Chloride (mg/I.)
Field pH (S.U.)
Sulfate (mg/L)
6.77 - 8.5 6.66 7/27/2015
876
NS
Semi-Annually
Semi-Annually
Semi-Annually
Sum- Annually
Selenium (ug/L) 4/23/2015
5/20/2015 Semi-Annually
Field pH (S.U.) 6./2
4/23/2015
4/29/2015
5/20/2015
6.18, 6.51,
6.23 Semi-Annually
MW-03 (Class III) Beryllium (ug/L)
Cadmium (ug/I.) 4.67 2/11/2015
Zinc (ug/L)
4/23/2015
5/20/2015
\ .44, 2.08
5.03, 14.2 NS NS
Semi-Annually
Semi-Annually
238, 373 Semi-Annually
Sulfate (mg/L) 3663 Semi-Annually
Nilralc + Nitrite (as N)
(mg/L) Semi-Annually
Fluoride (mg/I.) 0.68 Semi-Annually
Field pH (S.U.) 4/23/2015
4/29/2015 6.59, 6.24 Semi-Annually
MW-03A (Class
III)
Sulfate (mg/L) 3640 Semi-Annually
Nitrate + Nitrite (as N)
(mg/L)
7/29/2015 Semi-Annually
TDS (mg/I.) 5805 Semi-Annually
Selenium (ug/L) 94.1 101 Semi-Annually
MW-05 (Class II) Uranium (ua/L) NS NS NS 7/21/2015 Semi-Annually
Selenium (ug/I.) Semi-Annually
MW-12 (Class III) Field pH (S.U.) NS 4/21/2015
4/28/2015
NS
Semi-Annually
MW-15 (Class III) Selenium (ug/L) 128.7
Field pH (S.U.) 4/13/2015 7/22/2015 Semi-Annually
Semi-Annually
Ql 2015 Results Q2 2015 Results Q3 2015 Results
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in
August 24,
2012 GWDP
January 2015
Monthly
Sample Date
January 2015
Monthly
Result
Ql 2015
Sample Date
Ql 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
Sample
Frequency
Required Semi-Annual Sampling Wells, continued
MW-18 (Class III)
Thallium (ug/l)
Sulfate (mg/L)
Field pH (S.U.)
3198.77
NS
3240
2.81
NS
1990 Semi-Annua!
Semi-Annua:
MW-19 (Class III) Field pH (S.U.) 6.78
Nitrate + Nitrite (as N)
(mg/L)
2/2/2015 NS 4/14/2015
2.83 2.91
Semi-Annuai
Semi-Annual
MW-23 (Class III) Field pH (S.U.) 2/10/2015 NS
Cadmium (ug/L)
Fluoride (mg/L) 0.397 0.293 0.388
MW-24 (Class III Sulfate (mg/I.) 2/12/2015 NS
Thallium (ug/L)
Field pH (S.U.) 5/28/2015
6/24/2015 5.39, 5.98
Nitrate + Nitrite (as N)
(mg/L) 6.27
MW-27 (Class III) Chloride (mg/I.) 44.2 43.7
Sulfate (mg/I.) 2/9/2015
TDS (mg/L)
Gross Alpha minus Rn &
U (pCi/I.)
Semi-Annuai
Chloride (mg/L) 105 130 113
Cadmium (ug/L)
MW-28 (Class III) Uranium (ug/L) 6.13
Vanadium (ug/L)
Field pH (S.U.) 6.1 -8.5 4/21/2015
4/27/2015 6.08, 6.17 5.91
Semi-Annua
Semi-Annua]
TDS (mg/I.) 4430
MW-29 (Class III; Sulfate (mg/I.) 2/10/2015 2960 7/22/2015
Field pH (S.U.) 6.46 - 8.5 6.42 6.30
Semi-Annua
Gross Alpha minus Rn &
U (pCi/L) 2/9/2015 2.19
MW-32 (Class III) Chloride (mg/L) 37.8
Field pH (S.U.) 2/9/2015 6.37
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
Fxceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
Pursuant to the DRC letter of August H. 2015. these constituents will no longer be monitored
on an accelerated schedule. These constituents will he dropped from this report after this
•i^HHH^nHHHHHKiHinnHHHHHHi