DRC-2017-001144 - 0901a068806b38e8

V r
w/anENERGYFUELS
Energy Fuels Resources (USA) Inc.
225 Union Blvd. Suite 600
Lakewood, CO, US, 80228
303 974 2140
www.energvfuels.com
February 10, 2017
VIA PDF AND OVERNIGHT DELIVERY
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
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 fourth quarter (“Q4”) groundwater monitoring during the
period from October 1, to December 31, 2016 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 January 11,2017.
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 I.G.l 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 Q4 2016 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
Div of Waste Management
and Radiation Control
FEB 14 2017
wc-zon-'OOii'tf'
Letter to Mr. Scott Anderson
February I0r 2017
Page 2
+ 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
EFRTs 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
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 Q4 2016. A 30-day plan and schedule contemplated in Part I.G.l c)
of the GWDP will 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, September 10, 2015, and
December 3, 2015.
MW-11
Letter to Mr. Scott Anderson
February 10, 2017
Page 3
• Manganese concentrations exceeded the GWCL in MW-11 in all of the Q4 2016 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 Q4 2016 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 Q4 2016 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.
Letter to Mr. Scott Anderson
February 10, 2017
Page 4
• Field pH has been slightly outside (slightly lower than) the GWCL in all of the Q4 2016 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 Q4 2016 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-30
• Nitrate + nitrite has exceeded its GWCL in all of the Q4 2016 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 Q4 2016 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 Q4 2016 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 Q4 2016 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 Q4 2016. 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 Q4 2016 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 selenium concentration exceeded its GWCL in all of the Q4 2016 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 Total Dissolved Solids (“TDS”) exceeded its GWCL in all of the Q4 2016 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 Q4 and December monthly
sampling events. This is the first consecutive exceedance for uranium in MW-31. Therefore, a
plan and schedule for assessment will be submitted under separate cover within 30 days of this
Exceedance Notice.
Letter to Mr. Scott Anderson
February 10, 2017
Page 5
MW-35
• The uranium concentration exceeded the GWCL in MW-35 in all of the Q4 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 the September and October
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. Asa 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 Q4
One new exceedance for the Q4 2016 quarterly well sampling program is listed below. This exceedance
will result in an accelerated sampling frequency from quarterly to monthly. The well listed below will
only be sampled during the monthly events for those constituents that exceeded the GWCLs. 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 quarterly wells. It is important to note EFRI requested removal
of this constituents from accelerated monitoring by letter dated November 21, 2016. DWMRC approved
the removal of this constituent from monthly accelerated monitoring by letter dated January 20, 2017. The
December monthly sample result reported a concentration above the GWCL. Accelerated monthly
monitoring of this constituent has continued uninterrupted and will continue pursuant to the requirements
described below.
• Uranium in MW-30 was slightly above the GWCL in the December 2016 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.
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 (Q3 2016 and Q4 2016).
MW-3
Letter to Mr. Scott Anderson
February 10, 2017
Page 6
Fluoride, selenium, field pH, beryllium, cadmium, zinc, thallium, sulfate, nitrate, tetrahydrofuran
(“THE”), nickel, and manganese have exceeded their GWCLs intermittently, up to and including Q4
2016. A SAR was submitted on October 10, 2012 which addressed fluoride and selenium. The field pH
was addressed in reports submitted on November 9, 2012 and December 7, 2012. Cadmium, zinc,
beryllium, nickel and sulfate were addressed in two Plans and Time Schedules dated September 10, 2015
and December 3, 2015. Exceedances of thallium and nitrate did not require the submission of a Plan and
Time Schedule or SAR. Manganese and THE exceeded their respective GWCLs for two successive
sampling periods ending in Q3 2016. Pursuant to the GWDP, a Plan and Time Schedule for manganese
Letter to Mr. Scott Anderson
February 10, 2017
Page 7
and THF should be submitted as a result of the Q3 exceedances. However, a Plan and Time Schedule is
unwarranted in light of other actions currently being undertaken by EFRI pursuant to discussions with
DWMRC regarding the construction issues in MW-3. The above noted constituent concentrations have
been noted to be highly variable and unpredictable during recent monitoring events in monitoring
well MW-3, including the most recent 4th Quarter 2016 results.
These concentration fluctuations are likely due to efforts to isolate a section of blank casing below
the monitoring well screened interval using a well packer at the bottom of the screened interval as
approved in the Plans and Time Schedules dated September 10, 2015 and December 3, 2015. It is likely
that the well packer material, although thought to be inert, is reacting and causing fluctuating
contaminant concentrations. The packer was installed in an effort to isolate sump in MW-3 which
was one of several construction issues identified in MW-3. The sump was thought to be a major
contributor to the inconsistent, historic results in MW-3. EFRI and DWMRC have been aware of the
well construction issues at MW-3 since 2005, and as indicated in past communication, a replacement
well, well MW-3A, was installed in close proximity to MW-3 in order to determine if the
inconsistent results in MW-3 were valid. Based on eleven years of monitoring results for monitoring
well MW-3A, which do not show the same issues as MW-3, it has been determined that the
exceedances at monitoring well MW-3 are likely due to poor well construction, and that based on
historical contaminants found in this well, including organic chemicals (THF), monitoring well MW-
3 should be abandoned. Based on the suitability of MW-3A as a replacement for MW-3, and as
noted in letters from DWMRC dated November 8, and November 16, 2016, EFRI abandoned MW-3
on November 30, 2016 and therefore a Plan and Time Schedule to address the most recent
exceedances will not be completed.
MW-12
• Selenium has exceeded the GWCL for both the Q3 2016 sampling event and the Q4 2016
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
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 Q3 2016 sampling event and the Q4 2016
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
Letter to Mr. Scott Anderson
February 10, 2017
Page 8
• Cadmium has exceeded the GWCL for both the Q3 2016 sampling event and the Q4 2016
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.
• Thallium has exceeded the GWCL for both the Q3 2016 sampling event and the Q4 2016
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 Q3 2016 sampling
event and the Q4 2016 sampling event. This consecutive exceedance is addressed in the SAR,
dated October 10, 2012 and the Plan and Time Schedule which was submitted to DWMRC on
March 3, 2016 and approved by DWMRC on April 4, 2016. A SAR was submitted on June 24,
2016. Therefore, a plan and schedule for assessment will not be submitted under separate cover
within 30 days of this Exceedance Notice.
MW-27
• The chloride concentration exceeded its GWCL for both the Q3 2016 sampling event and the Q4
2016 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 Q3 2016 sampling event and
the Q4 2016 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 Q3 2016 sampling event and the Q4 2016
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 Q3 2016 sampling
event and the Q4 2016 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
Letter to Mr. Scott Anderson
February 10,2017
Page 9
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 Q3 2016 sampling event and the Q4 2016
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 Q4
Two new single exceedances for the Q4 2016 semi-annual well sampling program are listed below.
• Field pH in MW-23 was slightly below the GWCL in the Q4 sampling event.
• Sulfate in MW-32 was slightly above the GWCL in the Q4 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.
Yours truly,
ENERGY FUELS RESOURCES (USA) INC
Kathy Weinel
Quality Assurance Manager
cc:David Frydenlund
Harold Roberts
David Turk
Logan Shumway
Scott Bakken
Tabic 1 - GWCL Exceed31*^65 for Fourth Quarter 2016 under the Aupust 24, ^(n^GVVDP^
Q1201C Results Q2 2010 Results Q3 2010 R<suits Q4 2010 Results
Monitoring Well
(Water Class)Constituent Exceeding GWCL 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 Wells
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
4/28/2010
7.2
NS
NA
NS
NA
NS
NA
NS
NA 6.58
NS
NA
11/10/2010
6.36
NS
NA
Chloride (mg/L)35 2/3/2010 31 31 NA NA NA NA 9/8/2010 31 NA 31 NA
Cadmium (ug/L)1.5 1.26 1.44 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
MW-26 (Class III)
Nitrate + Nitrite (as N) (mg/L) 0.62 1.3
4/22/2010
2
5/21/2010
0.3
6/16/2010
0.4 0.6
8/16/2010
0.6 0.7 0.4
11/15/2010
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)70 700 1700 800 940
7/21/2010
900 2800 2100 1000 1900
12/15/2010
1400
Chloride (mg/L)58.31 2/2/2010 72 57 80 47 52 49 9/26/2010 64 10/20/2010 52 48 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
MW-30 (Class II)
Nitrate + Nitrite (as N) (mg/L)2.5 16.1
4/27/2010
15.8
5/21/2010
17
6/15/2010
15.3 7/21/2010 16 8/24/2010 16 15 15
11/9/2010
15
12/14/2010
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
Field pH (S.U.)6.5 - 8.5
2/9/2010
6.81 6.55 6.62 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 6.75 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
MW-31 (Class III)
Nitrate + Nitrite (as N) (mg/L)5
2/9/2010
21.7
4/20/2010
22.5 5/21/2010 23 6/15/2010 21.1 7/21/2010 20 8/24/2010 22
9/13/2010
(9/21/10)
21 10/19/2010 20
11/9/2010
20
12/14/2010
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 139 NS NA 138 NS
Selenium (ug/L)71 60.8 59.6 NS NA NS NA NS NA NS NA 64.4 NS NA 60 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
MW-35 (Class II)
Manganese (ug/L)200
NS
NA
NS
NA
NS
NA
NS
NA NA
NS
NA NA
NS
NA
11/30/2010
698 NA
Thallium (ug/1)0.5 NA NA NA NA NA NA NA NA 1.14 NA
Gross Alpha minus Rn & U
(pCi/L)3.75 NA NA NA NA NA NA NA NA 2.6 NA
Field pH (S.U.)6.5 - 8.5 NA NA NA NA
NS
NA NA
NS
NA NA 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
Required Semi-Annusil Sampling Weills
MW-01 (Class II)
Chloride (mg/L)22.1 NA 18 NA NA
NS
NA
NS
NA NA
NS
NA
11/8/2010
15 NA
Field pH (S.U.)6.77 - 8.5 NS NA 5/5/2010 7.86 (6.87)NS NA NS NA NA NA NS NA NA 6.96 NS NA
Sulfate (mg/L) 838 NA 805 NA NA NA NA NA NA 792 NA
MW-03 (Class HI)
Selenium (ug/L)37 NA 37.2
NS
NA
NS
NA NA
NS
NA 35.5 NA
11/19/2010
38.8 NA
Field pH (S.U.) 6.5 - 8.5 NA
5/3/2010
6.14 (6.25)NA NA NA NA
9/20/2010
6.39 NA 6.35 NA
Beryllium (ug/L)2 NA <0.5 NA NA NA NA NA NA <0.5 NA
Cadmium (ug/L) 4.67 NA 0.78 NA NA NA NA NA NA 0.63
NS
NA
Zinc (ug/L)173.19 NA 96 NA NA NA NA NA NA 40 NA
Thallium (ug/1)1.6 NS NA 1.31 NA NA NS NA NA NA NS NA 1.34 NA
Sulfate (mg/L) 3663 NA 3490 NA NA NA NA NA NA 3430 NA
Nitrate + Nitrite (as N) (mg/L) 0.73 NA 0.3 NA NA NA NA NA NA 0.4 NA
Tetrahydrofuran (ug/L)23 NA 1 NA NA NA NA NA NA 1 NA
Nickel (ug/L)100 NA <20 NA NA NA NA NA NA <20 NA
Manganese (ug/L)4233 NA 168 NA NA NA NA NA NA 143 NA
Huoride (Mg/L) 0.68 NA 0.71 NA NA NA NA 0.63 NA 0.77 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
MC
NA
Sulfate (mg/L)3640 NA 3680 NA NA NA NA 3630 NA 3850 INo NA
Selenium (ug/L)89 NA 81.4 NA NA NA NA NS NA 94.8 NA
MW-05 (Class II)Uranium (ug/L)7.5 NS NA 4/26/2010 0.39 NS NA NS NA NS NA NS NA NS NA NS NA 11/11/2010 11.6 NS NA
MW-12 (Class III)Selenium (ug/L)25 NS NA Anincwn 25.7 KIO NA NS NA KTC NA NS NA 31.9 NA 11/19/2010 27.6 NS NA
Field pH (S.U.)6.5 - 8.5 NS NA 7.16
IN5
NA NA
INa
NA NA V/2U/201U 6.62 NS
NA 6.47 NA
MW-15 (Class III)Selenium (ug/L)128.7 MC NA 100 KTC NA NS NA MC NA NS NA NS NA vre NA 11/11/2010 99.5 NS NA
Field pH (S.U.) 6.62 - 8.5 NA ‘I/ZX/ZUIU 6.98 INd NA NA IN5 NA NA NA NA 6.57 NA
Q1 2010 Results Q2 2010 Resuits 03 2010 R<ssults 04 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, continued
MW-18 (Class III)
Thallium (ug/1)1.95
NS
NA
5/4/2010
3.73
NS
NA
NS
NA
NS
NA
NS
NA 3.64 NA 3.57 NA
Sulfate (mg/L)1938.9 NA 1950 NA NA NA NA 1930 NA 1910 NA
Field pH (S.U.)6.25-8.5 NA 6.2 NA NA NA NA 9/15/2010 1.23 NS NA 11/18/2010 6.37 NS NA
TDS (mg/L)3198.77 NA 3280 NA NA NA NA 3190 NA 3030 NA
MW-19 (Class III)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 III)
Cadmium (ug/L)2.5
NS
NA
5/6/2010
4.28
NS
NA
NS
NA
NS
NA
NS
NA 5.06 NA 3.22 NA
Fluoride (mg/L)0.36 NA 0.14 NA NA NA NA NA NA 0.18 NA
Sulfate (mg/L)2903 NA 2560 NA NA NA NA 9/21/2010 NA NS NA 11/17/2010 2760 NS 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 III)
Nitrate + Nitrite (as N) (mg/L)5.6
NS
NA
5/3/2010
5.8
NS
NA
NS
NA
NS
NA
NS
NA 5.9 NA 5.7 NA
Chloride (mg/1.)38 NA 42 NA NA NA NA 42 NA 45 NA
Sulfate (mg/L)462 NA 469 NA NA NA NA n/1 a i n 461 VTC NA 11/10 /OA 1 A 452 NA
Field pH (S.U.) 6.5 - 8.5 NA 6.78 NA NA NA NA y/ 14/ZU1U 7.68 NA 11/12/2010 6.84 NS NA
TDS (mg/L)1075 NA 1160 NA NA NA NA 1060 NA 1110 NA
Gross Alpha minus Rn & U
(pCi/L)2 NA 1.6 NA NA NA NA NA NA 2.4 NA
MW-28 (Class III)
Chloride (mg/L)105
NS
NA
4/19/2010
108
NS
NA
NS
NA
NS
NA
NS
NA 106 NA
11/12/2010
107 NA
Cadmium (ug/L)5.2 NA 4.20 NA NA NA NA NA NA 4.11 NA
Uranium (ug/L)4.9 NA 3.36 NA NA NA NA 9/14/2010 NA NS NA 3.45 NS 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 HI)
TDS (mg/L)4400
NS
NA
4/27/2010
4400
NS
NA
NS
NA
NS
NA
NS
NA NA NA
11/9/2010
4390 NA
Sulfate (mg/L)2946 NA 2770 NA NA NA NA NS NA NS NA 2690 NS NA
Field pH (S.U.)6.46 - 8.5 NA 6.82 NA NA NA NA NA NA 6.17 NA
MW-32 (Class III)
Gross Alpha minus Rn & U
(pCi/L)3.33
NS
NA
4/20/2010
4.5
NS
NA
NS
NA
NS
NA
NS
NA
9/13/2010
2.9 NA
11/10/2010
8.8 NA
Chloride (mg/L)35.39 NA 30 NA NA NA NA NA NS NA 35 NS NA
Sulfate (mg/L) 2556.70 NA 2390 NA NA NA NA NA NA 2330 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
iniv = ivcquucu <uiu
Exceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
Table 1 - GWCL Exceedances for Fourth Quarter 2016 under the August 24, 2012 GWDP
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
Q1 2011
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
December 2011
Monthly Sample
Date
December 2011
Monthly Result2011 Monthly
Sample Date 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 III)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 6.44
2/2/2011
6.66
3/15/2011
6.79
4/4/2011
6.7 6.1
6/20/2011
5.77 6.29 8/3/2011
8/30/11 6.42 (6.54)
9/7/2011
6.54
10/4/2011
6.6 6.51
12/12/2011
6.87
Chloride (mg/L) 35 1/11/2011 NA 30 NA 31 5/11/2011 NA NA 7/6/2011 NA 8/3/2011 32 NA 32 11/9/2011 NA NA
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 III)
Nitrate + Nitrite (as N) (mg/L)0.62 0.2
2/16/2011
0.25
3/15/2011
0.6
4/1/2011
0.8 0.4
6/20/2011
0.3 0.9
8/3/2011
8/30/11
0.6
9/7/2011
2.4
10/12/2011
0.9 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 1/12/2011 52 59 64 64 5/10/2011 54 39 7/6/2011 64 60 66 61 11/9/2011 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 15
2/1/2011
16
3/14/2011
17 16
5/10/2011
16
6/20/2011
17 17
8/3/2011
14
9/7/2011
16
10/4/2011
11/29/2011
16 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
1/10/2011
6.65 6.96 7.10
4/11/2011
6.83 6.70 5.66
7/5/2011
6.65 6.61 6.80 6.96 (6.73)
11/8/2011
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 III)
Nitrate + Nitrite (as N) (mg/L)5 19
2/1/2011
21
3/14/2011
22 21
5/10/2011
20
6/20/2011
22 22
8/2/2011
20
9/6/2011
21
10/3/2011
21 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
11/8/2011
(11/29/12)
145 148
Selenium (ug/L)71 1/10/2011 NS 64.6 NA 4/1/2011 65.2 NS NS 7/5/2011 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 NA
2/15/2011
248
NS
NA 369
NS
NA
NS
NA 348
8/30/2011
267
9/7/11
270
10/3/11
271 283
12/14/11
247
Thallium (ug/1)0.5 NA <0.50 NA <0.50 NA NA NA 0.52 NA 0.57 <0.50 0.63
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
NS
NA 7.17 NA
6/7/2011
7.31 NA NA
7/20/11
6.49 6.40 6.47 6.59
11/8/2011
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
Selenium (ug/L)37 NA 40.5 NA 45.4 NA NA NA 46 NA 46.7 NA NA
Field pH (S.U.)6.5 - 8.5 NA 6.09 NA 6.46 NA NA NA 6.32 NA 6.53 (6.83)NA NA
Beryllium (ug/L)2 NA NA NA <0.5 NA NA NA NA NA <0.5 NA NA
Cadmium (ug/L)4.67 NA NA NA 1.26 NA NA NA NA NA 1.01 NA NA
Zinc (ug/L)173.19 NA NA NA 104 NA NA NA NA NA 74 NA NA
MW-03 (Class III)Thallium (ug/1) 1.6 NS NA 2/15/2011 NA NS NA 4/13/2011 1.02 NS NA NS NA NS NA 8/10/2011 NA NS NA 10/10/2011 1.38 NS NA NS NA
Sulfate (mg/L)3663 NA NA NA 3060 NA NA NA NA NA 3470 NA NA
Nitrate + Nitrite (as N) (mg/L) 0.73 NA NA NA 0.3 NA NA NA NA NA 0.3 NA NA
Tetrahydrofuran (ug/L)23 NA NA NA 1 NA NA NA NA NA <1.0 NA NA
Nickel (ug/L)100 NA NA NA <20 NA NA NA NA NA <20 NA NA
Manganese (ug/L)4233 NA NA NA 223 NA NA NA NA NA 94 NA NA
Fluoride (Mg/L)0.68 NA 0.69 NA 0.68 NA NA NA 0.96 NA 0.91 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)Uranium (ug/L)7.5 NS NA 2/14/2011 29.5 NS NA 4/12/2011 7.16 NS NA NS NA NS NA 8/9/2011 0.5 NS NA 10/10/2011 4.52 NS NA NS NA
MW-12 (Class III)Selenium (ug/L)25 wc NA o/i i 39.0 NA 21.7 MC NA XTC NA XTC NA o/n/ini i 25.4 XTC NA 35.4 XTC NA XTC NA
Field pH (S.U.)6.5 - 8.5 NA 6.43 NA 4/j/zUl 1 6.67 INo NA INo NA INS NA o/y/zu11 6.13 INS NA lU/O/ZUl 1 6.7 (6.97)INS NA INS NA
MW-15 (Class III)Selenium (ug/L)128.7 KTO NA MC NA MC NA 4/12/2011 116 MC NA XIC NA XTC NA XTC NA XTC NA 1 A/1 A/AAI 1 112 XTC NA XTC NA
Field pH (S.U.)6.62 - 8.5 INo NA INS NA IN5 NA 6.88 INo NA INS NA INS NA INS NA INS NA lU/lU/Zul 1 6.70 INS NA INS NA
Q12011 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
Q1 2011
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 Semi-Annual Sampling Wells, continued
MW-18 (Class III)
Thallium (ug/1)1.95 NA
2/15/2011
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 3.83
NS
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 6.27 NA 6.71 NA NA NA 5.95 (6.30)NS NA 10/11/2011 6.55 (6.63)NA NA
TDS (mg/L) 3198.77 NA 3250 NA 3250 NA NA NA 3190 NA 3220 NA NA
MW-19 (Class III)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 III)
Cadmium (ug/L)2.5 NA
2/10/2011
2.78
NS
NA 2.61
NS
NA
NS
NA NA
8/4/2011
1.46
NS
NA 1.78
NS
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 NS NA NA NA 4/5/2011 2560 NA NA NS NA NA NA 10/11/2011 2500 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 NA
2/9/2011
6
NS
NA 6.4
NS
NA
NS
NA NA
8/8/2011
6
NS
NA 6.3
NS
NA
NS
NA
Chloride (mg/L)38 NA 46 NA 43 NA NA NA 43 NA 44 NA NA
Sulfate (mg/L)462 XTC NA 455 NA 442 NA NA NS NA 424 NA 1 A/C/AA 1 1 456 NA NA
Field pH (S.U.)6.5 - 8.5 INo NA 6.71 NA ‘+/D/ZU11 6.79 NA NA NA 6.39 NA 10/5/2011 7.17 NA NA
TDS (mg/L)1075 NA 1090 NA 1190 NA NA NA 1090 NA 1110 NA NA
Gross Alpha minus Rn & U
(pCi/L)2 NA 0.7 NA 1.1 NA NA NA 0.8 NA 1.5 NA NA
MW-28 (Class III)
Chloride (mg/L)105 NA
2/14/2011
114
NS
NA 109
NS
NA
NS
NA
NS
NA
8/8/2011
105
NS
NA
10/5/2011
143
NS
NA
NS
NA
Cadmium (ug/L)5.2 NA NA NA
4/11/2011
4.13 NA NA NA NA NA 3.99 NA NA
Uranium (ug/L) 4.9 NS NA NA NA 3.29 NA NA NA NA NA 3.19 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 NA
NS
NA
NS
NA
4/18/2011
4080
NS
NA
NS
NA
NS
NA
8/9/2011
NA
NS
NA
10/5/2011
4280
NS
NA
NS
NA
Sulfate (mg/I.)2946 NS NA NA NA 2600 NA NA NA NA NA 2850 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
MW-32 (Class III)
Gross Alpha minus Rn & U
(pCi/L)3.33
NS
NA
2/9/2011
1.5
NS
NA
4/1/2011
4.6
NS
NA
NS
NA
NS
NA
8/2/2011
8/30/11
1.9
NS
NA
10/3/2011
3.7
NS
NA
NS
NA
Chloride (mg/L) 35.39 NA NA NA 33 NA NA NA NA NA 34 NA NA
Sulfate (mg/L)2556.70 NA NA NA 2180 NA NA NA NA NA 2370 NA NA
Field pH (S.U.)6.4-8.5 NA 5.99 NA 6.14 NA NA NA 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
iniv = ivcquucu ami i>ui
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 Fourth Quarter 2016 under the August 24, 2012 GWDF
Q1 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
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
Required Quarterly 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 6.83 6.55 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 6.47
12/24/2012
6.62
Chloride (mg/L)35 NA 2/14/2012 30 3/14/2012 NA 4/9/2012 NA 30 NA 33 NA NA NA 11/12/2012 28.8 NA
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 III)
Nitrate + Nitrite (as N)
(mg/L)0.62
1/25/2012
1.9 2/15/2012 1.2 3 3.4
5/7/2012
6/26/2012
2.9
6/19/2012
2.3 7/11/2012 1.9
8/8/2012
1.6
9/19/2012
1.8 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
4/11/2012
2900 1700 2400 8/16/2012 970 2200 2300 4720 4020 1250
Chloride (mg/L)58.31 68 40 3/14/2012 74 82 74 85 7/11/2012 78 78 67 10/24/2012 2.62 11/15/2012 52.9 65.9
Field 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
4/10/2012
17
5/2/2012
16 15
7/10/2012
17
8/7/2012
18
9/19/2012
16 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 7.05 6.95
6/18/2012
7.10 7.25 6.95 7.85
10/23/2012
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
4/9non
21
5/2/2012
20 21.6
7/9/2012
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 1270
Chloride (mg/L)143 155 150 152 160 151
6/18/2012
6/29/2012
138 161 175 172 157
11/6/2012
189
12/18/2012
170
Selenium (ug/L)71 NS 2/13/2012 67.8 3/13/2012 NS NS 70.2 NA 74 NA NA NA 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
1/24/2012
264 253 269
4/10/2012
277
5/2/2012
258 304 272
8/8/2012
273
9/19/2012
283
10/23/2012
253
11/13/2012
241 240
Thallium (ug/1)0.5 <0.50 0.65 0.71 0.59 0.66 <0.50 0.57 0.61 0.54 0.517 0.554 0.5
Gross Alpha minus Rn & U
(pCi/L)3.75 6.5
2/14/2012
4.1 6.2 4.1 4.5 4.9 3.5 4.2 5.4 4.31 4.23
12/18/2012
6.5
Field pH (S.U.)6.5 - 8.5 6.35 6.67
3/13/2012
6.48 6.84 6.61
6/19/2012
6.90
7/10/2012
6.87 6.74 6.81 6.43 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
Selenium (ug/L)37 NA 43.1 NA NA 52.8 NA 51.1 NA NA NA 58.9 NA
Field pH (S.U.)6.5 - 8.5 NA 6.63 NA NA 6.67 NA 6.99 NA NA NA 6.55 NA
Beryllium (ug/L)2 NA NA NA NA <0.5 NA NA NA NA NA <0.5 NA
Cadmium (ug/L)4.67 NA NA NA NA 1.06 NA NA NA NA NA 0.954 NA
Zinc (ug/L)173.19 NA NA NA NA 68 NA NA NA NA NA 46.1 NA
MW-03 (Class III)Thallium (ug/1)1.6 NS NA 2/29/2012 NA NS NA NS NA 5/14/2012 1.37 NS NA NA NA NS NA NS NA NS NA 11/28/2012 1.16 NS NA
Sulfate (mg/L)3663 NA NA NA NA 3140 NA NA NA NA NA 2340 NA
Nitrate + Nitrite (as N)
(mg/L)0.73 NA NA NA NA 0.4 NA NA NA NA NA 0.419 NA
Tetrahydrofuran (ug/L)23 NA NA NA NA <1.0 NA NA NA NA NA <1.0 NA
Nickel (ug/L)100 NA NA NA NA <20 NA NA NA NA NA <20 NA
Manganese (ug/L) 4233 NA NA NA NA 114 NA NA NA NA NA 89.1 NA
Fluoride (Mg/L)0.68 NA 0.86 NA NA 1.04 NA 0.96 NA NA NA 1.26 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
NS
NA
MC
NA
11/29/2012
6.35
NS
NA
Sulfate (mg/L) 3640 NA 3020 NA NA 3220 NA 3700 NA I'lO NA NA 2780 NA
Selenium (ug/L)89 NA 65.8 NA NA 85.1 NA 99.3 NA NA NA 111 NA
MW-05 (Class II)Uranium (ug/L)7.5 NS NA 2/28/2012 18.6 NS NA NS NA 5/9/2012 1.23 NS NA 7/16/2012 0.75 NS NA NS NA NS NA 11/27/2012 0.402 NS NA
MW-17 tr'las'j TIT^Selenium (ug/L)25 NIC NA NA KTC NA KTC NA «/i0/9019 19.6 KJC NA 7/1 7/7/11 7 20.7 MC NA MC NA MC NA 1 1 /77/7/11 7 23.0 MC NA
Field pH (S.U.)6.5 - 8.5 INo NA Z//V/ZU1Z 6.81 iNo NA INo NA 3/lU/ZUiZ 6.91 NA //1 //ZU1Z 6.98 iNa NA NA
INo NA 1 1/Z//ZU1Z 6.54 NA
MW-1 5 ITT)Selenium (ug/L)128.7 MC NA 9/99/901 ?NA MC NA KTC NA S/Q/9019 152 VTC NA 7/17/9019 120 MC NA MC NA MC NA ii/i/i /7n 17 117 MC NA1V1 W - X J 111,/Field pH (S.U.)6.62 - 8.5 NA Z/ZZ/ZU1Z 6.84 INo NA l>o NA D/7/ ZU1 z 6.63 iNo NA //1 //ZU 1Z 7.05 INo NA INo NA INj NA 11/14/ZU1Z 6.86 INo 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
Required 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 01)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 III)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 HI)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
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 NA 45 NA NA 46 NA 47 NA NA NA 44.2 NA
MW-27 (Class HI)Sulfate (mg/L)462 NIC NA '7/98/901'?451 VJC NA MC NA c/i /'ini i 446 XTC NA "7/1 C/Ofll "t 453 XTC NA NA NA 451 NA
Field pH (S.U.)6.5 - 8.5 INo NA Z/Zo/ZUlZ 7.24 INCN NA INo NA j/I/ZUIZ 7.03 INo NA //lo/zUlz 7.40 INS NA NS NA NS NA 11/13/2012 6.69 NS NA
TDS (mg/L)1075 NA 1140 NA NA 1170 NA 1150 NA NA NA 1070 NA
Gross Alpha minus Rn & U
(pCi/L)2 NA 2.3 NA NA 0.8 NA 1.2 NA NA NA 1.33 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
Gross Alpha minus Rn & U
(pCi/L)3.33 NA 1.8 NA NA 2.4 NA 1.4 NA NA NA 2.97 NA
MW-32 (Class III)Chloride (mg/L)35.39 NS NA 2/21/2012 NA NS NA NS NA 4/30/2012 33 NS NA 7/9/2012 1.4 NS NA NS NA NS NA 11/6/2012 32.1 NS NA
Sulfate (mg/L)2556.70 NA NA NA NA 2130 NA NA NA NA NA 1710 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
i'iiv = ivcquucu tuiu i'sui
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 Fourth Quarter 2016 under the August 24, 2012 GWDP
Q12013 Results Q2 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
Q1 2013 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 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 ResultMonthly
Sample Date
Required Quarterl 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 III)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 6.65
2/20/2013
6.62 6.41
4/17/2013
7.00
5/14/2013
7.19
6/24/2013
6.61
7/10/2013
6.32 6.74 6.54
10/22/2013
6.81
11/19/2013
6.62 6.73
Chloride (mg/L)35 1/22/2013 NA 36.1 3/19/2013 NA NA 28.1 30.4 28 8/19/2013 31.1 9/17/2013 29.6 28.6 29 12/17/2013 31.2
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/L)0.62 1.66
2/20/2013
1.38 1.61
4/17/2013
1.73
5/23/2013
2.01
6/5/2013
6/25/2013
3.04 2.11*
7/11/2013
1.98 1.77 3.60
10/23/2013
4.10
11/20/2013
1.38 2.56
Uranium (ug/L)41.8 65.7 57.8 69 58.8 64.3 71.3 70 72.3 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)58.31 1/24/2013 63.5 77 3/20/2013 73.6 70.4 63.1 87.8 77.9*72.1 8/20/2013 70.8 9/18/2013 77.3 63.8 62.3 12/18/2013 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* [12.1]14.2 14.6 42.4 29.8 7.64 7.48
MW-30 (Class II)
Nitrate + Nitrite (as N) (mg/L)2.5 19.2
2/26/2013
21.4 14.3
4/17/2013
16.8
5/15/2013
18.8
6/25/2013
16.1
7/10/2013
17.6 16.4 16.9
10/22/2013
19.7
11/20/2013
19.5 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
1/23/2013
6.88 6.93
3/20/2013
6.91 7.42 7.54 6.93 6.87
8/20/2013
7.06
9/18/2013
6.78 6.96 6.84
12/18/2013
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 22.8
2/19/2013
19.3 19.1 18.8
5/13/2013
23.8
6/24/2013
20.0
7/9/2013
21.7
8/19/2013
16.0 21.2
10/23/2013
21.2
11/18/2013
23.9 24.2
TDS (mg/L)1320 1270 1390 1420 1260 1540 1380 1510 1440 1500 1460 1320 1500
Chloride (mg/L)143 176 174 168 171 169 179 182 183 193 188 174 203
Selenium (ug/L)71 1/22/2013 NS 74.1 3/19/2013 81.8 4/16/2013 72.9 75.9 73.7 75.7 73.2 9/17/2013 72.6 80.7 74.5 12/17/2013 79.8
Field pH (S.U.) 6.5 - 8.5 6.94 7.32 7.28 6.37 7.92 7.10 6.98 7.36 7.06 7.35 6.99 7.23
Uranium (ug/L)9.1 NS 7.33 NS NS 7.63 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)200 247
2/26/2013
272 246
4/17/2013
243
5/13/2013
252
6/24/2013
243
7/9/2013
250
8/19/2013
262 257
10/23/2013
240 251 260
Thallium (ug/1)0.5 <0.5 <0.5 0.505 <0.5 0.715 0.946 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
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
1/23/2013
6.54 6.68
3/19/13
6.43 6.96 7.33 6.70 6.51 7.02
9/17/2013
6.50 6.83
11/19/2013
6.52
12/17/2013
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 Senu-Annual Sampling Wells
MW-01 (Class II)
Chloride (mg/L)22.1 NA
3/12/2013
NA NA
NS
NA
5/21/2013
17.8
NS
NA
7/23/2013
NA
NS
NA NA
NS
NA 18.7
NS
NA
Field pH (S.U.)6.77 - 8.5 NS NA 6.77 NS NA NA 7.57 NA 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-03 (Class III)
Selenium (ug/L)37 NA
3/12/2013
51.8 NA
NS
NA
5/22/2013
46.3
NS
NA
7/18/2013
52.0 NA NA
NS
NA
12/11/2013
32.8 NA
Field pH (S.U.)6.5 - 8.5 NA 6.20 NA NA 7.14 NA 6.46 NA NA NA 6.78 NA
Beryllium (ug/L)2 NA NA NA NA <0.5 NA NA NA NA NA <0.5 NA
Cadmium (ug/L)4.67 NA NA NA NA 1.42 NA NA
NS
NA NA NA <0.5 NA
Zinc (ug/L)173.19 NA NA NA NA 72.1 NA NA NA NA NA 20.3 NA
Thallium (ug/1) 1.6 NS NA NA NS NA NA 1.21 NA NA NA NS NA NA 1.1 NS NA
Sulfate (mg/L)3663 NA NA NA NA 2180 NA NA NA NA NA 3760 NA
Nitrate + Nitrite (as N) (mg/L) 0.73 NA NA NA NA 0.456 NA NA NA NA NA 1.21 NA
Tetrahydrofuran (ug/L)23 NA NA NA NA <1.0 NA NA NA NA NA 4.86 NA
Nickel (ug/L)100 NA NA NA NA <20 NA NA NA NA NA <20 NA
Manganese (ug/L) 4233 NA NA NA NA 99.1 NA NA NA NA NA 975 NA
Fluoride (Mg/L) 0.68 NA 0.902 NA NA 0.994 NA 1.18 NA NA NA 1.28 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
KTC
NA
Sulfate (mg/L)3640 NA 3480 NA NA 3120 NA 3670 NA NA NA 3360 IN?>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)Uranium (ug/L)7.5 NS NA 3/11/2013 36 NS NA NS NA 5/14/2013 1.33 NS NA 7/18/2013 0.574 NS NA NS NA NS NA 12/4/2013 20.1 NS NA
MW-12 (Class III)Selenium (ug/L)25 NA 3/6/2013 19.6 KTC NA NS NA 5/15/2013 19 NS NA 7/17/2013 20.5 KTC NA NA NS NA 12/9/2013 21.7 NA
Field pH (S.U.)6.5 - 8.5 [No NA 6.56 INS NA NA 7.19 NA 6.60 NS NA NS NA NA 6.69 NS NA
MW-15 (Class III)Selenium (ug/L)128.7 NS NA 3/5/2013 137 NA NS NA 5/15/2013 120 NS NA 7/18/2013 100 NS NA NS NA NS NA 11/20/2013 106 NA
Field pH (S.U.) 6.62 - 8.5 NA 6.75 INS NA NA 7.27 NA 6.68 NA NA NA 6.61 NS NA
Q1 2013 Results Q2 2013 Results Q3 2013 Results 04 2013 Results
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in Current
GWDP
January 2013
Monthly
Sample Date
January
2013
Monthly
Result
Q1 2013 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 Result
Required Semi-Annual Sampling Wells, continued
MW-18 (Class III)
Thallium (ug/1)1.95 NA
2/25/2013
3.26 NA
NS
NA
5/20/2013
2.81
NS
NA 3.32
NS
NA NA NA 3.06
NS
NA
Sulfate (mg/L) 1938.9 NA 1270 NA NA 1860 NA 1860 NA NA NA 2000 NA
Field pH (S.U.)6.25-8.5 NS NA 6.35 NS NA NA 6.97 NA 7/15/2013 6.45 NA NS NA NS NA 12/3/2013 6.38 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
NS
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
3/13/2013
2.0 NA
NS
NA
5/22/2013
1.32
NS
NA 6.72
NS
NA NA NA 1.15
NS
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 NA NS NA NA 2070 NA 7/19/2013 NA NA NS NA NS NA 12/12/2013 2490 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 III)
Nitrate + Nitrite (as N) (mg/L)5.6
NS
NA
2/25/2013
7.94 NA
NS
NA
5/21/2013
7.09
NS
NA 6.97
NS
NA NA NA 7.89
NS
NA
Chloride (mg/L)38 NA 50.3 NA NA 44.3 NA 44.2 NA NA NA 45.0 NA
Sulfate (mg/L)462 NA 431 KTC NA NA 497 NA "7/1 1 1 NA NA NA NA 442 NA
Field pH (S.U.) 6.5 - 8.5 NA 7.03
INS NA NA 7.58 NA III 1111)15 7.00 NA NS NA NS NA 12/4/2013 7.16 NA
TDS (mg/L)1075 NA 1140 NA NA 1110 NA 1110 NA NA NA 1100 NA
Gross Alpha minus Rn & U
(pCi/L)2 NA <1.0 NA NA 1.57 NA <1.00 NA NA NA 1.28 NA
MW-28 (Class III)
Chloride (mg/L)105
NS
NA
3/5/2013
110 NA
NS
NA
5/15/2013
102
NS
NA 107
NS
NA
NS
NA NA 109
NS
NA
Cadmium (ug/L)5.2 NA NA NA NA 4.61 NA
7/17/2013
NA NA NA NA 4.74 NA
Uranium (ug/L)4.9 NA NA NS NA NA 3.58 NA NA NA NA NS NA 12/4/2013 3.34 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 NA
3/6/2013
4500 NA
NS
NA
5/23/2013
4340
NS
NA
7/17/2013
4270
NS
NA
NS
NA NA 4370
NS
NA
Sulfate (mg/L)2946 NS NA NA NS NA NA 2450 NA NA NA NA NS NA 11/20/2013 2750 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
MW-32 (Class III)
Gross Alpha minus Rn & U
(pCi/L)3.33 NA
2/19/2013
5.02
NS
NA
NS
NA
5/13/2013
3.72
NS
NA
7/9/2013
6.46
NS
NA NA NA 1.86
NS
NA
Chloride (mg/L)35.39 NS NA NA NA NA 32.3 NA NA NA NS NA NS NA 11/18/2013 33.7 NA
Sulfate (mg/L)2556.70 NA NA NA NA 1800 NA NA NA NA NA 2110 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
iniv = ivcquucu miu
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 Fourth Quarter 2016 under the August 24, 2012 GWDP
Q12014 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
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 Sampling 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
Field pH (S.U.)6.5 - 8.5 6.37 6.10 6.27 7.18 6.80 6.74 6.36 7.17 6.50 6.49 6.31 6.36
MW-25 (Class III)Chloride (mg/L)35 1/7/2014 31 2/13/2014 30.4 3/10/2014 31.5 4/28/2014 31 5/13/2014 26.4 6/2/2014 30.9 7/28/2014 NA 8/18/2014 NA 9/3/2014 30 10/6/2014 NA 11/4/2014 29.6 12/9/2014 NA
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
Nitrate + Nitrite (as N)
(mg/L)0.62 2.42 2.12 1.30 1.20 1.64 1.42 2.0 1.00 1.10 0.704 1.09 <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 2330 2200 1580 894 1520 2280
MW-26 (Class III)Chloride (mg/L)58.31 1/8/2014 69.7 2/24/2014 70.4 3/12/2014 61.0 4/30/2014 62.1 5/14/2014 61.0 6/5/2014 63.2 7/29/2014 80.0 8/20/2014 59.0 9/4/2014 68.0 10/7/2014 57.7 11/18/2014 54.2
12/10/14
12/15/14 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
Nitrate + Nitrite (as N)
(mg/L)2.5 20.3 18.4 21.3 18.3 17.9 19.4 15.6 13.8 16.8 11.0 16.2 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 7.84 6.84 9.82 7.35 7.40 7.60 7.70 7.76 7.65 7.67
MW-30 (Class II)
Field pH (S.U.)6.5 - 8.5
1/8/2014
6.74
2/25/2014
6.80
3/11/2014
6.56
4/23/2014
7.06
5/14/2014
6.88
6/3/2014
6.89
7/29/2014
6.76
8/20/2014
7.51
9/9/2014
6.82
10/7/2014
6.92
11/10/2014
6.22
12/10/2014
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
Nitrate + Nitrite (as N)
(mg/L)5 24.0 20.6 26.2 19.1 23.3 23.1 19.0 15.2 18.9 15.9 20.9 17.0
TDS (mg/L)1320 1510 1460 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
MW-31 (Class III)Selenium (ug/L)71 1/7/2014 74.4 2/17/2014 75.8 3/10/2014 77.2 4/28/2014 85.4 5/13/2014 74.5 6/2/2014 69.4 7/28/2014 77.9 8/18/2014 82.8 9/3/2014 81.5 10/6/2014 78.9 11/14/2014 73.0 12/9/2014 71.1
Field pH (S.U.)6.5 - 8.5 7.13 6.45 6.53 1A5 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
Manganese (ug/L)200 252 247 204 194 249 202 212 191 177 228 222 232
Thallium (ug/1)0.5 0.535 <0.5 <0.5 0.582 0.521 <0.5 <0.5 <0.5 0.6 <0.5 <0.5 <0.5
Gross Alpha minus Rn & U
(pCi/L)3.75 4.12 3.98 4.33 2.95 3.67 3.36 3.09 4.70 3.93 4.14 3.92 4.54
MW-35 (Class H)
Field pH (S.U.)6.5 - 8.5
1/8/2014
6.54
2/11/2014
6.07
3/11/14
6.32
4/25/2014
6.79
5/14/2014
7.10
6/4/2014
6.83
7/29/2014
6.55
8/20/2014
7.07
9/3/2014
6.46
10/6/2014
6.54
11/12/2014
6.35
12/9/2014
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
Chloride (mg/L)22.1 NA NA NA NA NA 20.4 NA NA NA NA 19 NA
MW-01 (Class II)Field pH (S.U.)6.77 - 8.5 NS NA NS NA 2/20/2014 6.61 NS NA NS NA 5/28/2014 7.11 NS NA NS NA 9/10/2014 6.75 NS NA 11/17/2014 6.87 NS NA
Sulfate (mg/L)838 NA NA 836 NA NA 909 NA NA 810 NA 920 NA
Selenium (ug/L)37 NA NA 37.0 NA NA 69.5 NA NA 94.0 NA 62.4 NA
Field pH (S.U.)6.5 - 8.5 NA NA 6.23 NA NA 6.56 NA NA 6.13 NA 6.37 NA
Beryllium (ug/L)2 NA NA NA NA NA <0.5 NA NA NA NA <0.5 NA
Cadmium (ug/L)4.67 NA NA NA NA NA 1.7 NA NA NA NA 2 NA
Zinc (ug/L)173.19 NA NA NA NA NA 94.5 NA NA NA NA 98.3 NA
MW-03 (Class III)Thallium (ug/1)1.6 NS NA NS NA 2/26/2014 NA NS NA NS NA 5/30/2014 1.28 NS NA NS NA 9/16/2014 NA NS NA 11/17/2014 1.32 NS NA
Sulfate (mg/L) 3663 NA NA NA NA NA 3460 NA NA 3120 NA 3800 NA
Nitrate + Nitrite (as N)
(mg/L)0.73 NA NA NA NA NA 0.573 NA NA 0.6 NA 0.330 NA
Tetrahydrofuran (ug/L)23 NA NA NA NA NA <1.0 NA NA NA NA <1.0 NA
Nickel (ug/L)100 NA NA NA NA NA <20 NA NA NA NA <20 NA
Manganese (ug/L)4233 NA NA NA NA NA 104 NA NA NA NA 87.000 NA
Fluoride (Mg/L) 0.68 NA NA 0.771 NA NA 1.02 NA NA 1.0 NA 1.08 NA
MW-03A (Class HI)Field pH (S.U.)6.5 - 8.5
NS
NA
MS
NA
3/5/2014
6.58
NS
NA
NS
NA
5/30/2014
6.60
NS
NA
NS
NA
9/17/2014
6.40
NIC
NA
i i /1 t /on i
6.41
NIC
NA
Sulfate (mg/L)3640 NA NA 3100 NA NA 3830 NA NA 3350
INS NA 11/IZ/ZUI4 3770 INS NA
Selenium (ug/L)89 NA NA 92.1 NA NA 104 NA NA 129 NA 88.5 NA
MW-05 (Class II) Uranium (ug/L)7.5 NS NA NS NA 2/12/2014 22.0 NS NA NS NA 6/4/2014 2.42 NS NA NS NA 9/11/2014 0.90 NS NA 11/12/2014 36.20 NS NA
MW-12 (Class III)Selenium (ug/L)25 XTC NA VTO NA "J/l l/IOI A
23.7 XTC NA XTC NA HIAI'MW A 17.20 XTO NA XTO NA NA NA 11/11 /'TA 1 A 33.30 NA
Field pH (S.U.)6.5 - 8.5 INo NA IN5 NA Z/1Z/ZU14 6.13 NA NA D/4/ZU14 7.10 NS NA NS NA y/io/zoi4 6.47 NS NA 11/11/2014 6.25
NS
NA
MW-15 (Class III)Selenium (ug/L)128.7 M's NA XTO NA 2/25/2014 110 VTC NA NIC NA (./A /TA 1 A 105 NIC NA XTO NA 273 NA ii/io /on i 4 106 NA
Field pH (S.U.)6.62 - 8.5 ro NA no NA 6.51 NA IN .5 NA 0/4/ZU14 6.91 NS NA NS NA WZ/ZUI4 6.38 NS NA 11/12/2014 6.41 NS NA
Q1 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
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, continued
MW-18 (Class ID)
Thallium (ug/1)1.95
NS
NA NA
2/19/2014
2.77 NA
NS
NA
5/27/2014
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 NS NA 6.16 NS NA NA 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 NA
3/6/2014
5.92 NA
NS
NA
5/30/2014
2.91
NS
NA
NS
NA
9/17/2014
1.5
NS
NA
11/19/2014
1.17
NS
NA
Fluoride (mg/L)0.36 NA NA 0.234 NA NA 0.337 NA NA 0.4 NA 0.109 NA
Sulfate (mg/L)2903 NA NS NA NA NS NA NA 2450 NA NA NA NA 3120 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 NA
2/25/2014
7.98 NA
NS
NA
5/28/2014
7.35
NS
NA
NS
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 45.9 NA NA 46.0 NA 42.6 NA
Sulfate (mg/L)462 NA wc NA 411 MC NA NA 484 NA NA 414 NA 419 NA
Field pH (S.U.)6.5 - 8.5 NA IN5 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
Gross Alpha minus Rn & U
(pCi/L)2 NA NA 1.08 NA NA 2.33 NA NA 1.16 NA <1.0 NA
MW-28 (Class III)
Chloride (mg/L)105
NS
NA NA
2/26/2014
113 NA
NS
NA
6/18/2014
114
NS
NA
NS
NA
9/16/2014
112
NS
NA
11/5/2014
117
NS
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 NS NA NA NS NA NA 61.3 NA NA 10.6 NA 21.2 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 NA
2/25/2014
4500 NA NA
6/3/2014
4200
NS
NA
NS
NA
9/10/2014
4280
NS
NA
11/10/2014
4210
NS
NA
Sulfate (mg/L)2946 NA NS NA NA NS NA NS NA 2510 NA NA NA NA 2760 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
MW-32 (Class III)
Gross Alpha minus Rn & U
(pCi/L)3.33
NS
NA NA 1.94 NA NA
5/23/2014
4.35
NS
NA
NS
NA 9/2/2014 3.69 NA
11/5/2014
2.56
NS
NA
Chloride (mg/L)35.39 NA NS NA 2/11/2014 NA NS NA NS NA 35.6 NA NA 8/26/2014 34 NS NA 33.3 NA
Sulfate (mg/I.)2556.70 NA NA NA NA NA 1990 NA NA NS NA NA 2210 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.
Table 1 - GWCL Exceedances for Fourth Quarter 2016 under the August 24, 2012 GVVDP
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
Required 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 III)
Field pH (S.U.)6.5 - 8.5
1/20/2015
6.19 6.46
3/4/2015
6.32 6.52 6.46 6/1/2015
6/23/2015 6.59. 6.53 6.70
8/10/2015
6.47
9/15/2015
6.58
10/6/2015
6.45 6.79
12/8/2015
6.41
Chloride (mg/L)35 NA 2/4/2015 30.5 NA 4/7/2015 31.1 5/11/2015 NA NS NA 7/6/2015 NA 36.8 NA NA 11/11/2015 29.8 31.1
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 III)
Nitrate + Nitrite (as N)
(mg/L)0.62
1/21/2015
0.30 2.68
3/4/2015
0.965 0.845 0.606
6/24/2015
0.588 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/I.)58.31 59.9 2/11/2015 77.2 67.2 4/9/2015 61.0 5/12/2015 61.4 60.8 7/7/2015 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 14.9
3/3/2015
17.3 17 16.1
6/24/2015
15.8 15.3
8/11/2015
17.9
9/15/2015
17.3
10/7/2015
19.1 16.3
12/9/2015
18.2
Chloride (mg/L)128 144 136 132 142 145 142 145 165 165 137
11/11/2015
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
2/4/2015
6.59 6.32
4/8/2015
6.67
5/12/2015
6.76 6/2/2015
6/24/2015 6.94, 6.32
7/7/2015
6.85 6.73 6.65 6.88 6.83 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 18.7
3/3/2015
19.8 19.0 18.4
6/23/2015
18.0 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 2/2/2015 79.2 76.2 4/7/2015 75.7 5/11/2015 71.6 74.4 7/6/2015 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 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 O/ZJ/ZU1 j 691 684 640 638 655 646 690
MW-35 (Class II)
Manganese (ug/L)200
1/20/2015
228 223
3/4/2015
190 237 207.0 6/23/2015 214
7/7/2015
185
8/10/2015
198 201, 176
10/6/2015
169 210
12/14/2015
177
Thallium (ug/1)0.5 <0.5 <0.5 <0.5 <0.5
5/12/2015
<0.5 <0.5 <0.5 <0.5
9/15/15 9/22/15
9/28/15
<0.5. <0.5 0.638 <0.5 <0.5
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
11/3/2015
4.47 4.69
Field pH (S.U.)6.5 - 8.5 6.22
2/5/2015
6.53 6.26
4/9/2015
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 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
Required Semi-Annual Sampling Wells
Chloride (mg/L)22.1 NA NA NA 23.9 NA NA NA NA NA NA 21.9 NA
MW-01 (Class II)Field pH (S.U.)6.77 - 8.5 NS NA 2/10/2015 6.66 NS NA 4/15/2015 7.15 NS NA NS NA NS NA 7/27/2015 7.12 NS NA NS NA 11/11/2015 6.83 NS NA
Sulfate (mg/L)838 NA 813 NA 892 NA NA NA 876 NA NA 830 NA
Selenium (ug/L)37 NA 61.1 NA 4/23/2015
5/20/2015 81, 61.7 NA NA NA 68.3 NA NA 76.0 NA
Field pH (S.U.)6.5 - 8.5 NA 6.12 NA
4/23/2015
4/29/2015
5/20/2015
6.18, 6.51,
6.23 NA NA NA 6.16 NA NA 6.25 NA
Beryllium (ug/L)2 NA NA NA 1.44, 2.08 NA NA NA NA NA NA 1.84 NA
Cadmium (ug/L)4.67 NA NA NA 4/23/2015 5.03, 14.2 NA NA NA NA NA NA 12.9 NA
Zinc (ug/L)173.19 NA NA NA 5/20/2015 238, 373 NA NA NA NA NA NA 275 NA
MW-03 (Class III)Thallium (ug/1) 1.6 NS NA 2/11/2015 NA NS NA 4/23/2015
5/20/2015 1.47. 1.51 NS NA NS NA NS NA 7/28/2015 NA NS NA NS NA 11/3/2015 1.61 NS NA
Sulfate (mg/L) 3663 NA 3260 NA 3700 NA NA NA 3670 NA NA 3360 NA
Nitrate + Nitrite (as N)
(mg/L)0.73 NA 0.638 NA 0.642 NA NA NA 0.406 NA NA 0.487 NA
Tetrahydroftiran (ug/L)23 NA NA NA 4/23/2015
5/20/2015
<1.0 NA NA NA NA NA NA <1.0 NA
Nickel (ug/L)100 NA NA NA 39.4, 96.2 NA NA NA NA NA NA 86.9 NA
Manganese (ug/L)4233 NA NA NA 242. 1240 NA NA NA NA NA NA 1020 NA
Fluoride (mg/L)0.68 NA 1.08 NA 1.00 NA NA NA 1.58 NA NA 1.35 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 6.34
XIC
NA
NIC
NA
i i tA nr\ i c
6.63
XIC
NA
Sulfate (mg/L) 3640 NA 3450 NA 3720 NA NA NA //zy/zuio 3860 INo NA INo NA 11/4/zUlo 3380 NO NA
Selenium (ug/L)89 NA 94.1 NA
h/ZJ/ZUID
101 NA NA NA 85.9 NA NA 91.7 NA
MW-05 (Class II)Uranium (ug/L)7.5 NS NA 2/10/2015 2.94 NS NA 4/21/2015 1.3 NS NA NS NA NS NA 7/21/2015 0.887 NS NA NS NA 11/4/2015 2.35 NS NA
MW-12 (Class HI)Selenium (ug/L)25 NS NA 7/QCOIS 30.0 NS NA 4/21/2015 29.4 NS NA MS NA NA '7/')! /OAI <24.6 XTO NA XIO NA
1 1 /1 "I M A 1 «
24.7 NA
Field pH (S.U.)6.5 - 8.5 INO NA 6.33 NA 6.50. 6.70 NA [No
NA
INo
NA
//Zl/ZUl J
6.70
[No
NA No NA
11/1 //2()lo
6.65 NS NA
MW-15 /Class ITU Selenium (ug/L)128.7 NS NA 2/4/2015 125 NS NA 4/13/2015 137 NS NA MS NA NS NA 7/22/2015 104 XIC NA XIC NA 1 1 /I JC/OA 1 «107 XIC NA
Field pH (S.U.)6.62 - 8.5 NA 6.50 NA 6.82 NA [No NA NA 6.61 INo NA NO NA 1 l/lo/2l)I0 6.81 NO
NA
Q12015 Results 02 2015 Results Q3 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 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
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 NA NA
7/27/2015
2.69
NS
NA NA
11/9/2015
2.68
NS
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 6.27 NA
4/15/2015 6.40 NA NS NA NS NA 6.43 NA
NS NA 6.30 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
4/14/2015
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 NA
11/18/2015
3.75
NS
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 NS NA 2790 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 III)
Nitrate + Nitrite (as N)
(mg/L)5.6
NS
NA
2/9/2015
3.15
NS
NA 6.27
NS
NA
NS
NA NA
7/21/2015
7.35
NS
NA NA
11/10/2015
5.60
NS
NA
Chloride (mg/L)38 NA 44.2 NA 47.6 NA NA
KTC
NA 43.7 NA NA 42.9 NA
Sulfate (mg/L)462 NA 402 NA Annnn i s 429 NA NA NA 425 NA XTO NA 430 NA
Field pH (S.U.)6.5 - 8.5 NA 6.82 NA ‘+/ZU/ZU1J 7.09 NA NA INo NA 6.84 NA
NS NA 6.48 NA
TDS (mg/L)1075 NA 996 NA 1040 NA NA NA 1010 NA NA 1000 NA
Gross Alpha minus Rn & U
(pCi/L)2 NA <1.0 NA <1.0 NA NA NA <1.0 NA NA <1.0 NA
MW-28 (Class HI)
Chloride (mg/L)105
NS
NA
2/9/2015
130
NS
NA 125
NS
NA
NS
NA
NS
NA
7/21/2015
113
NS
NA NA
11/10/2015
116
NS
NA
Cadmium (ug/L)5.2 NA 4.83 NA 4/21/2015 4.59 NA NA NA 4.97 NA NA 4.73 NA
Uranium (ug/L)4.9 NA 4.48 NA 6.13 NA NA NA 4.87 NA NS NA 4.84 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 HI)
TDS (mg/L)4400
NS
NA
2/10/2015
4430
NS
NA 4190
NS
NA
NS
NA
NS
NA
7/22/2015
4310
NS
NA
NS
NA
11/16/2015
4110
NS
NA
Sulfate (mg/L)2946 NA NA NA 4/30/2015 2960 NA NA NA NA NA NA 2740 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
MW-32 (Class III)
Gross Alpha minus Rn & U
(pCi/L)3.33
NS
NA 2/9/2015 2.19
NS
NA 1.81
NS
NA
NS
NA
NS
NA
7/23/2015
1.89
NS
NA
NS
NA
11/3/2015
2.19
NS
NA
Chloride (mg/L)35.39 NA 3/17/2015 36.3 NA 4/8/2015 37.8 NA NA NA 37.3 NA NA 34.1 NA
Sulfate (mg/L) 2556.70 NA NS NA NA 2150 NA NA NA NA NA NA NA 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.
Reported from the quarterly chloroform sample
Table 1 ~ GWCL Exceedances for Fourth Quarter 2016 under the August 24, 2012 GWDP
Q1 2016 Results Q2 2016 Results Q3 2016 Q4 2016
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
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
Q4 2016
Result
December 2016
Monthly
Sample Date
December 2016
Monthly Result
Sample
Frequency
RequinHi Quarterly Sampling Wells
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 Quarterly
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 Quarterly
MW-25 (Class III)
Field pH (S.U.)6.5 - 8.5 6.18
2/8/2016
6.50
3/2/2016
6.57
4/12/2016
6.51
5/3/2016
6.24 6.25
7/12/2016
6.23
8/17/2016
6.57
9/13/2016
6.21
10/4/2016
6.66 6.65
12/5/2016
6.70 Quarterly
Chloride (mg/L)35 1/19/2016 29.6 31.6 30.9 31.5 30.8 6/14/2016 31.2 29.6 32.2 32.0 32.3 11/2/2016 32.7 NS Quarterly
Cadmium (ug/L)1.5 1.37 1.51 1.42 1.39 1.43 1.43 1.44 1.37 1.41 1.41 1.33 1.41 Quarterly
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 Quarterly
MW-26 (Class III)
Nitrate + Nitrite (as N)
(mg/L)0.62 0.943
2/16/2016
1.66
3/2/2016
1.95
4/13/2016
0.990
5/4/2016
1.85 1.66
7/14/2016
1.63
8/18/2016
2.70
9/15/2016
1.67
10/6/2016
1.11
11/9/2016
2.73
12/6/2016
1.80 Quarterly
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 Quarterly
Chloroform (ug/L)70 2370 3530 2280 2060 1720 1860 3300 2950 3950 1660 2440 2970 Quarterly
Chloride (mg/L) 58.31 1/20/2016 63.5 69.1 76.8 67.4 68.1 6/15/2016 81.6 68.3 78.6 75.6 71.1 67.9 73.7 Quarterly
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 Quarterly
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 Quarterly
MW-30 (Class II)
Nitrate + Nitrite (as N)
(mg/L)2.5 14.6 20.0
3/2/2016
17.8
4/13/2016
18
5/4/2016
17.3 18.5
7/13/2016
16.1
8/18/2016
18.0
9/14/2016
17
10/5/2016
17.2
11/3/2016
18.0
12/6/2016
18.2 Quarterly
Chloride (mg/L)128 143 145 142 144 139 142 137 150 146 148 143 158 Quarterly
Uranium (ug/L)8.32 8.34
2/10/2016
7.76 7.82 7.55 8.18 7.66 8.10 8.23 8.22 7.64 7.92 8.63 Quarterly
Field pH (S.U.)6.5 - 8.5
1/20/2016
6.45 6.94 6.51 6.84 6.30
6/14/2016
6.28 6.23 6.86 6.60 6.87 6.94 6.34 Quarterly
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 Quarterly
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 Quarterly
MW-31 (Class III)
Nitrate + Nitrite (as N)
(mg/L)5 18.9
2/15/2016
18.8
3/2/2016
18.0
4/12/2016
22.8
5/3/2016
18.6 19.2
7/12/2016
17.4
8/16/2016
19.7
9/13/2016
18.6
10/4/2016
18.8
11/1/2016
19.8
12/5/2016
18.5 Quarterly
TDS (mg/L)1320 1560 1490 1580 1710 1550 1580 1610 1710 1570 1670 1690 1670 Quarterly
Chloride (mg/L)143 228 246 228 254 243 252 241 272 254 260 267 274 Quarterly
Selenium (ug/L)71 1/19/2016 85.1 81.0 85.7 81.6 84.6 6/15/2016 83.3 85.6 85.4 85.5 88.2 89.0 87.1 Quarterly
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 Quarterly
Uranium (ug/L)9.1 NS 8.41 NS NS 9.05 NS NS 9.41 NS NS 9.56 10.3 Quarterly
Sulfate (mg/L)532 675 631 654 715 699 748 712 766 703 720 752 748 Quarterly
MW-35 (Class II)
Manganese (ug/L)200
1/19/2016
211
2/10/2016
194
3/2/2016
194
4/12/2016
213
5/3/2016
203 228 210 204
9/13/2016
198
10/4/2016
196
11/9/2016
224
12/5/2016
189 Quarterly
Thallium (ug/1)0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS Quarterly
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 Quarterly
Field pH (S.U.)6.5 - 8.5 6.35 6.70 6.53 6.51 6.22
6/15/2016
6.20
7/12/2016
6.28
8/16/2016
6.65 6.21 6.73 6.30 6.50 Quarterly
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 Quarterly
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 Quarterly
Required Semi-Annual Sampling WeiIs
MW-01 (Class II)
Chloride (mg/L)22.1 NA
2/10/2016
22.1
NS
NA
NS
NA
4/20/2016
22.0 NA NA 21.5
NS
NA
NS
NA 23.7
NS
NA Semi-Annually
Field pH (S.U.)6.77 - 8.5 NS NA 7.06 NA NA 6.36 NS NA NS NA 8/24/2016 7.21 NA NA 11/8/2016 6.54 NA Semi-Annually
Sulfate (mg/L)838 NA 812 NA NA 825 NA NA 866 NA NA 720 NA Semi-Annually
MW-03 (Class III)*
Selenium (ug/L)37 NA <5.00
NS
NA
NS
NA
4/26/2016
<5.00 NA NA
9/22/2016
5.06
NS
NA
NS
NA 56.3
NS
NA Semi-Annually
Field pH (S.U.)6.5 - 8.5 NA 6.21 NA NA 6.15 NA NA 6.40 NA NA 6.40 NA Semi-Annually
Beryllium (ug/L)2 NA 0.694 NA NA 0.625 NA NA 1.01 NA NA 1.47 NA Semi-Annually
Cadmium (ug/L)4.67 NA 3.71 NA NA 4.71 NA NA 2.72 NA NA 9.79 NA Semi-Annually
Zinc (ug/L)173.19
NS
NA
2/16/2016
4210 NA NA 2580 NA NA 2070 NA NA 1310 NA Semi-Annually
Thallium (ug/1)1.6 NA 1.46 NA NA 1.54 NS NA NS NA 1.60 NA NA 11/8/2016 1.55 NA Semi-Annually
Sulfate (mg/L) 3663 NA 3230 NA NA 3350 NA NA 3010 NA NA 3080 NA Semi-Annually
Nitrate + Nitrite (as N)
(mg/L)0.73 NA <0.100 NA NA <0.100 NA NA 0.108 NA NA 0.399 NA Semi-Annually
Tetrahydrofuran (ug/L)23 NA 11.6 NA NA 36.1 NA NA 41.3 NA NA 12.9 NA Semi-Annually
Nickel (ug/L)100 NA 76.9 NA NA 83.6 NA NA 113 NA NA 100 NA Semi-Annually
Manganese (ug/L)4233 NA 2820 NA NA 4560 NA NA 4510 NA NA 3260 NA Semi-Annually
Fluoride (mg/L)0.68 NA 1.33 NA NA 1.13 NA NA 0.827 NA NA 1.37 NA Semi-Annually
MW-03A (Class III)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
NS
NA
NS
NA
11/8/2016
6.35
NS
NA Semi-Annually
Sulfate (mg/L) 3640 NA 3580 NA NA 3580 NA NA 3390 NA NA 3440 NA Semi-Annually
Selenium (ug/L)89 NA 91.5 NA NA 103 NA NA 75.7 NA NA 142 NA Semi-Annually
MW-05 (Class II)Uranium (ug/L)7.5 NS NA 2/15/2016 1.15 NS NA NS NA 4/21/2016 0.869 NS NA NS NA 8/19/2016 0.688 NS NA NS NA 11/9/2016 0.661 NS NA Semi-Annually
MW 19 JT’lacu IIIl
Selenium (ug/L)25 Njc NA 2/4/2016 23.8 NS NA NS NA 4/21/2016 31.2 VTC NA KTC NA 27.7 NS NA NS NA 11/8/2016 29.3 NS NA Semi-Annuallyivi w - 1Z ^v^IaSS 111^Field pH (S.U.)6.5 - 8.5 INo NA 6.36 NA NA 6.31 NA NA o/ly/2Ulo 6.84 NA NA 6.43 NA Semi-Annually
MW-15 (Class III)Selenium (ug/L)128.7 NS NA 2/4/2016 123 NS NA NS NA 4/27/2016 126 vro NA vrc NA 8/18/2016 110 NS NA NS NA 11/3/2016 112 NS NA Semi-Annually
Field pH (S.U.)6.62 - 8.5 NA 6.30 NA NA 6.02 NA iNo NA 6.71 NA NA 6.68 NA Semi-Annually
Q1 2016 Results Q2 2016 Results Q3 2016 Q4 2016
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
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
Q4 2016
Result
December 2016
Monthly
Sample Date
December 2016
Monthly Result
Sample
Frequency
Required Semi•Annual Samp•ling Wells, coiitinued
MW-18 (Class III)
Thallium (ug/1)1.95
NS
NA 2.67 NA
NS
NA
4/19/2016
2.77
NS
NA
NS
NA
8/23/2016
2.58 NA
NS
NA
11/2/2016
2.73
NS
NA Semi-Annually
Sulfate (mg/L)1938.9 NA 1890 NA NA 1890 NA NA 1960
NS
NA NA 1780 NA Semi-Annually
Field pH (S.U.)6.25-8.5 NA 2/9/2016 6.10 NS NA NA 5.93 NA NA 6.64 NA NA 6.55 NA Semi-Annually
IDS (mg/L) 3198.77 NA 3130 NA NA 3190 NA NA 3180 NA NA 3140 NA Semi-Annually
MW-19 (Class III)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 Semi-Annually
Nitrate + Nitrite (as N)
(mg/L)2.83 NA 2.44 NA NA 2.63 NA NA 2.62 NA NA 2.68 NA Semi-Annually
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 Semi-Annually
MW-24 (Class III)
Cadmium (ug/L)2.5
NS
NA
2/17/2016
6.31 NA NA
4/28/2016
6.07
NS
NA
NS
NA
9/22/2016
3.97 NA
NS
NA
11/2/2016
3.67
NS
NA Semi-Annually
Fluoride (mg/L)0.36 NA 0.117 NA NA 0.446 NA NA 0.135 NA NA 0.345 NA Semi-Annually
Sulfate (mg/L)2903 NA 2750 NS NA NS NA 2760 NA NA 2460 NS NA NA 2490 NA Semi-Annually
Thallium (ug/L)1 NA 2.04 NA NA 2.10 NA NA 1.57 NA NA 1.46 NA Semi-Annually
Field pH (S.U.)6.5 - 8.5 NA 5.95 NA NA 4.83 NA NA 6.00 NA NA 5.48 NA Semi-Annually
MW-27 (Class III)
Nitrate + Nitrite (as N)
(mg/L)5.6
NS
NA
2/2/2016
6.50 NA NA
4/20/2016
7.40
NS
NA
NS
NA 6.46
NS
NA
NS
NA
11/1/2016
6.89
NS
NA Semi-Annually
Chloride (mg/L)38 NA 47.3 NA NA 43.1 NA NA 42.3 NA NA 43.2 NA Semi-Annually
Sulfate (mg/I.)462 NA 439 NA NA 418 NA NA 383 NA NA 394 NA Semi-Annually
Field pH (S.U.)6.5 - 8.5 NA 6.59 INa NA INs NA 6.54 NA NA
8/24/«'U16 7.36 NA NA 6.93 NA Semi-Annually
TDS (mg/L)1075 NA 1050 NA NA 1020 NA NA 960 NA NA 908 NA Semi-Annually
Gross Alpha minus Rn & U
(pCi/L)2 NA <1.0 NA NA <1.0 NA NA <1.0 NA NA <1.0 NA Semi-Annually
MW-28 (Class III)
Chloride (mg/L)105
NS
NA
2/2/2016
130 NA NA
4/20/2016
121
NS
NA
NS
NA
9/1/2016
127
NS
NA
NS
NA
11/1/2016
126
NS
NA Semi-Annually
Cadmium (ug/L)5.2 NA 5.26 NA NA 4.90 NA NA 5.14 NA NA 4.84 NA Semi-Annually
Uranium (ug/L)4.9 NA 4.61 NS NA NS NA 3.95 NA NA 4.71 NA NA 4.09 NA Semi-Annually
Vanadium (ug/L)30 NA <15.0 NA NA <15.0 NA NA <15.0 NA NA <15.0 NA Semi-Annually
Field pH (S.U.)6.1 -8.5 NA 5.46 NA NA 5.73 NA NA 6.56 NA NA 6.21 NA Semi-Annually
MW-29 (Class III)
TDS (mg/L)4400
NS
NA
2/10/2016
4410 NA NA
4/27/2016
4100
NS
NA
NS
NA
9/1/2016
4410
NS
NA
NS
NA
11/8/2016
4090
NS
NA Semi-Annually
Sulfate (mg/L)2946 NA 2710 NS NA NS NA 2730 NA NA 2750 NA NA 2290 NA Semi-Annually
Field pH (S.U.)6.46 - 8.5 NA 6.47 NA NA 6.03 NA NA 6.78 NA NA 6.35 NA Semi-Annually
MW-32 (Class III)
Gross Alpha minus Rn & U
(pCi/L)3.33
NS
NA
2/3/2016
2.17 NA NA
4/20/2016
2.18
NS
NA
NS
NA
8/17/2016
2.56
NS
NA
NS
NA
10/31/2016
1.07
NS
NA Semi-Annually
Chloride (mg/L)35.39 NA 38.2 NS NA NS NA 36.3 NA NA 38.3 NA NA 39.1 NA Semi-Annually
Sulfate (mg/L)2556.70 NA NA NA NA 2220 NA NA NA NA NA 2590 NA Semi-Annually
Field pH (S.U.)6.4 - 8.5 NA 5.99 NA NA 6.06 NA NA 6.29 NA NA 6.38 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.
* Pursuant to agreements with DWMRC, EFRI abandoned MW-03 on November 30, 2016. MW-03 will be dropped from this report after this quarter.
Pursuant to the DRC letter of November 8, 2016, these constituents will no longer be monitored on an accelerated schedule. These constituents
will be dropped from this report after this quarter.