DRC-2016-006717 - 0901a0688062c9be

ENERGYFUELS
Energy Fuels Resources (USA) Inc.
225 Union Blvd. Suite 600
Lakewood, CO, US, 80228
303 974 2140
www.energyfuels.com
May 2, 2016
VIA PDF AND OVERNIGHT DELIVERY
Scott Anderson,
PpvC-2-0 lfe-0067/7 7
Divot Waste Management
and Radiation Control
m - h 2016
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.1 (a)
Dear Mr. Anderson:
The White Mesa Mill (the “Mill”) performed first quarter (“Ql”) groundwater monitoring during the period from
January 1, to March 31, 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
April 20, 2016.
Pursuant to Part I.G.1.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.1 c) of the GWDP states “that the Permittee shall prepare and submit within 30 calendar days to the
Executive Secretary a plan and a time schedule for assessment of the sources, extent and potential dispersion of
the contamination, and an evaluation of potential remedial action to restore and maintain groundwater quality to
ensure that Permit limits will not be exceeded at the compliance monitoring point and that DMT or BAT will be
reestablished.” The summary below relating to Ql 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 + 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. EFRI’s letter to the Director dated January 31, 2011 proposed the recalculation of the GWCLs
for field pH. Following the statistical evaluation of pH data by EFRI’s geochemical consultant, INTERA,
Inc., EFRI compared the Mill’s groundwater pH data from Q2 2011 and noted that all of the June 2011
groundwater results, and many of the other results from Q2 2011, were already outside the revised
GWCLs that were to be proposed in the June 30, 2011 letter. Pursuant to teleconferences with DWMRC
on December 5, and December 19, 2011, EFRI submitted a Work Plan and Schedule on January 20, 2012
and a revised plan based on DWMRC comments on April 13, 2012. Based on the approved Work Plan
and Time Schedule, EFRI and DWMRC entered into a Stipulated Consent Agreement (“SCA”) dated July
12, 2012. The SCA required the completion of the pH Report and the Pyrite Investigation and associated
report. The pH Report and Pyrite Investigation Report were submitted November 9, 2012 and December
7, 2012 respectively. By letter dated April 25, 2013, DWMRC accepted the conclusions that the out-of-
compliance results for pH are due to background effects within the aquifer matrix 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 and December 9, 2015 and the Plan and Time Schedules submitted
December 4, 2014, September 10, 2015, December 3, 2015, and March 3, 2016. 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.
' Letter to Mr. Scott Anderson
May 2, 2016
Page 2
' Letter to Mr. Scott Anderson
May 2, 2016
Page 3
1.0 Exceedances in Required Quarterly Sampling Wells
1.1 Quarterly Wells with Two Successive Exceedances
As indicated in the attached Table 1, the analytes discussed below exceeded their respective GWCLs for two
successive sampling periods in Q1 2016. A 30-day plan and schedule contemplated in Part I.G.l c) of the GWDP
will not be required for the consecutive exceedances below for the reasons stated below. One-time
exceedances and non-successive exceedances are noted on Table 1, but not listed below. Consecutive
exceedances which occurred in previous reporting periods are discussed in the SARs submitted October 10, 2012,
May 8, 2013, August 30, 2013, December 17, 2013, January 13, 2014, March 19, 2014 and December 9, 2015 and
the Plan and Time Schedules submitted December 4, 2014, September 10, 2015, December 3, 2015, and March 3,
2016.
MW-11
• Manganese concentrations exceeded the GWCL in MW-11 in all of the Q1 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-14
• Field pH has been slightly outside (slightly lower than) the GWCL in the December 2015 and January
2016 monthly sampling events. As mentioned above, site-wide pH issues and trends are addressed in
reports submitted on November 9, 2012 and December 7, 2012. As a result of the November 7, 2012
report, the GWCLs have been recalculated and accepted by DWMRC. The recalculated GWCLs will
become effective upon their publication in the next revision of the GWDP. As a result of DWMRC’s
acceptance of the recalculated GWCLs, a plan and schedule to address this consecutive exceedance is not
necessary and will not be submitted. Until such time as the new GWCLs become effective, the
exceedances will continue to be noted and reported.
MW-25
• Field pH has been slightly outside (slightly lower than) the GWCL in the December 2015 and January
2016 monthly sampling events. As mentioned above, site-wide pH issues and trends are addressed in
reports submitted on November 9, 2012 and December 7, 2012. As a result of the November 7, 2012
report, the GWCLs have been recalculated and accepted by DWMRC. The recalculated GWCLs will
become effective upon their publication in the next revision of the GWDP. As a result of DWMRC’s
acceptance of the recalculated GWCLs, a plan and schedule to address this consecutive exceedance is not
necessary and will not be submitted. Until such time as the new GWCLs become effective, the
exceedances will continue to be noted and reported.
MW-26
Nitrate + nitrite has exceeded its GWCL in all of the Q1 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.
'Letter to Mr. Scott Anderson
May 2, 2016
Page 4
• Chloroform has exceeded its GWCL for all of the Q1 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.
• Field pH has been slightly outside (slightly lower than) the GWCL in all of the Q1 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 Q1 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 Q1 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 Q1 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 Q1 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
'Letter to Mr. Scott Anderson
May 2, 2016
Page 5
• Nitrate + nitrite has exceeded its GWCL in all of the Q1 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 Q1 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 monitoring periods for Q1 2016. 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 monitoring periods for Q1 2016. 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 monitoring periods for Q1 2016.
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.
MW-35
• The uranium concentration exceeded the GWCL in MW-35 in all of the Q4 2016 sampling events. A plan
and schedule to address this exceedance is not necessary and is not being submitted because the
exceedances are based on the interim GWCLs for MW-35, which have been set at a fraction of the
Groundwater Quality Standards. Background has been established for MW-35 in the Background Report
submitted to DWMRC on May 1, 2014. As a result of the Background Report, the GWCLs have been
calculated and accepted by DWMRC in a letter dated July 15, 2014. The calculated GWCLs will become
effective upon their publication in the next revision of the GWDP. As a result of DWMRC’s acceptance
of the calculated GWCLs, a plan and schedule to address this consecutive exceedance is not necessary
and will not be submitted. Until such time as the new GWCLs become effective, the exceedances will
continue to be noted and reported. It should be noted that the exceedances of the interim GWCLs noted
herein, do not necessarily represent impacts to groundwater from Mill activities.
• The gross alpha minus Rn and U (“gross alpha”) concentration exceeded the GWCL in the December
2015 and January 2016 monthly sampling events. A plan and schedule to address this exceedance is not
necessary and is not being submitted because the exceedances are based on the interim GWCLs for MW-
35, which have been set at a fraction of the Groundwater Quality Standards. Background has been
established for MW-35 in the Background Report submitted to DWMRC on May 1, 2014. 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.
• The selenium concentration exceeded the GWCL in MW-35 in in the Q1 2016 (February) and March
2016 sampling events. A plan and schedule to address this exceedance is not necessary and is not being
submitted because the exceedances are based on the interim GWCLs for MW-35, which have been set at
a fraction of the Groundwater Quality Standards. Background has been established for MW-35 in the
Background Report submitted to DRC on May 1, 2014. As a result of the Background Report, the
GWCLs have been calculated and accepted by DRC in a letter dated July 15, 2014. The calculated
GWCLs will become effective upon their publication in the next revision of the GWDP. As a result of
DRC’s acceptance of the calculated GWCLs, a plan and schedule to address this consecutive exceedance
is not necessary and will not be submitted. Until such time as the new GWCLs become effective, the
exceedances will continue to be noted and reported. It should be noted that the exceedances of the interim
GWCLs noted herein, do not necessarily represent impacts to groundwater from Mill activities.
1.2 Quarterly Wells with New Exceedances Reported in Q1
Two new exceedances for the Q1 2016 quarterly well sampling program are listed below. These exceedances
will result in an accelerated sampling frequency from quarterly to monthly. The wells listed below will only be
sampled during the monthly events for those constituents that exceeded the GWCLs. The wells 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 these constituents from
accelerated monitoring by letters dated November 18, 2015 and February 11, 2016. DWMRC approved the
removal of these constituents from monthly accelerated monitoring by letters dated February 25, 2016 and March
30, 2016. The Q1 sample results reported concentrations above the GWCLs. Accelerated monthly monitoring of
these constituents has continued uninterrupted and will continue pursuant to the requirements described below.
• Cadmium in MW-25 was slightly above the GWCL in the Q1 (February) sampling event.
• Uranium in MW-25 was slightly above the GWCL in the January 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.
'Letter to Mr. Scott Anderson
May 2, 2016
Page 6
Letter to Mr. Scott Anderson
May 2, 2016
Page 7
2.0 Exceedances in Semiannual Sampling Wells Accelerated to Quarterly
2.1 Semi-annual Wells with Two Successive Exceedances
As indicated in the attached Table 1, the analytes discussed below exceeded their respective GWCLs for two
successive sampling periods (Q4 2015 and Q1 2016).
MW-3
• Fluoride has exceeded the GWCL for both the Q4 2015 sampling event and the Q1 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 DWMRC’s acceptance
of the recalculated GWCLs, a plan and schedule to address this consecutive exceedance is not necessary
and will not be submitted. Until such time as the new GWCLs become effective, the exceedances will
continue to be noted and reported.
• Field pH has been slightly outside (slightly lower than) the GWCL for both the Q4 2015 sampling event
and the Q1 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 November 9, 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.
• Zinc has exceeded the GWCL for the Q4 2015 and the Q1 2016 sampling event. This consecutive
exceedance is addressed in the Plan and Time Schedule which was submitted to DWMRC on September
10, 2015 and approved by DWMRC on November 10, 2015. Therefore, a plan and schedule for
assessment will not be submitted under separate cover within 30 days of this Exceedance Notice.
MW-3A
• Selenium has exceeded the GWCL for both the Q4 2015 sampling event and the Q1 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 DWMRC’s acceptance
of the recalculated GWCLs, a plan and schedule to address this consecutive exceedance is not necessary
and will not be submitted. Until such time as the new GWCLs become effective, the exceedances will
continue to be noted and reported.
MW-18
• Thallium has exceeded the GWCL for both the Q4 2015 sampling event and the Q1 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
Letter to Mr. Scott Anderson
May 2, 2016
Page 8
exceedance is not caused by Mill activities and was previously discussed in the October 10, 2012 SAR.
Until such time as the GWCLs are removed, the exceedances will continue to be noted and reported.
MW-19
• Field pH has been slightly outside (slightly lower than) the GWCL for both the Q4 2015 sampling event
and the Q1 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 November 9, 2012
report, the GWCLs have been recalculated and accepted by DWMRC. The recalculated GWCLs will
become effective upon their publication in the next revision of the GWDP. As a result of DWMRC’s
acceptance of the recalculated GWCLs, a plan and schedule to address this consecutive exceedance is not
necessary and will not be submitted. Until such time as the new GWCLs become effective, the
exceedances will continue to be noted and reported.
MW-24
• Cadmium has exceeded the GWCL for both the Q4 2015 sampling event and the Q1 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 DRC. The recalculated GWCLs will become
effective upon their publication in the next revision of the GWDP. As a result of DRC’s acceptance of
the recalculated GWCLs, a plan and schedule to address this consecutive exceedance is not necessary and
will not be submitted. Until such time as the new GWCLs become effective, the exceedances will
continue to be noted and reported.
• Thallium has exceeded the GWCL for both the Q4 2015 sampling event and the Q1 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 DRC. The recalculated GWCLs will become effective
upon their publication in the next revision of the GWDP. As a result of DRC’s acceptance of the
recalculated GWCLs, a plan and schedule to address this consecutive exceedance is not necessary and
will not be submitted. Until such time as the new GWCLs become effective, the exceedances will
continue to be noted and reported.
• Field pH has been slightly outside (slightly lower than) the GWCL for both the Q4 2015 sampling event
and the Q1 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 November 9, 2012
report, the GWCLs have been recalculated and accepted by DWMRC. The recalculated GWCLs will
become effective upon their publication in the next revision of the GWDP. As a result of DWMRC’s
acceptance of the recalculated GWCLs, a plan and schedule to address this consecutive exceedance is not
necessary and will not be submitted. Until such time as the new GWCLs become effective, the
exceedances will continue to be noted and reported.
MW-27
• The chloride concentration exceeded its GWCL for both the Q4 2015 sampling event and the Q1 2016
sampling event and during previous quarters. As mentioned above, a CAP has been submitted and
approved to address nitrate+nitrite contamination which is expected to address chloride in groundwater.
The actions specified in the CAP are currently being implemented; therefore a plan to address this
consecutive exceedance is not necessary and is not being submitted.
MW-28
• Chloride has exceeded the GWCL for both the Q4 2015 sampling event and the Q1 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 Q1
There were no new exceedances for the semi-annual well sampling program.
better to Mr. Scott Anderson
May 2, 2016
Page 9
Yours truly,
ENERGY FUELS RESOURCES (USA) INC.
Kathy Weinel
Quality Assurance Manager
cc:David Frydenlund
Harold Roberts
David Turk
Logan Shumway
Scott Bakken
Monitoring Well
(Water Class)
Results
Constituent Exceeding
GWCL
GWCL in
August 24,2012
GWDP
Q1 2010 Sample
Date
Q1 2010
Result
Table 1
Q2 2010 Results
GWCL Exceedances for Fourth Quarter 2015 under the August 24. 2012 GWDP
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 Results
Q4 2010
Sample Date
Q4 2010
Result
December 2010
Monthly Sample
Date
December 2010
Monthly Result
Required Quarterly Sampling Wells
MW-11 (Class n)Manganese (ug/L)131.29 99 7/20/2010
MW-14 (Class ni)Field pH (S.U.)12/15/2010
Field pH (S.U.)
MW-25 (Class ID)Chloride (mg/L)
Cadmium (ug/L)
Uranium (ug/L)
Nitrate + Nitrite (as N)
_______(mg/L)_______
Uranium (ug/L)
Chloroform (ug/L)
MW-26 (Class III)Chloride (mg/L)
Field pH (S.U.)
Dichloromethane
(Methylene Chloride)
_______(ug/L)_______
Nitrate + Nitrite (as N)
_______(mg/1.)_______2.5
Chloride (mg/L)
Uranium (ug/L)
MW-30 (Class H)Field pH (S.U.)7/21/2010
7/27/2010 6.80 (6.82)
9/14/2010
9/21/2010 6.80 (6.84)
Ammonia (mg/L)
Fluoride (mg/I.)
Selenium (ug/L)
Nitrate + Nitrite (as N)
_______(mg/L)_______
TPS (mg/L)
MW-31 (Class III)Chloride (mg/L)
Selenium (ug/L)
9/13/2010
(9/21/10)
Field pH (S.U.)7.66 (7.13)
Sulfate (mg/L)527
Manganese (ug/L)
Thallium (ug/1)
Gross Alpha minus Rn & U
(pCi/L)
MW-35 (Class II)
Field pH (S.U.)
Selenium (ug/L)
Uranium (ug/L)
Required Semi-Annual Sampling Wells
MW-01 (Class D)
Chloride (mg/L)
Field pH (S.U.)
Sulfate (mg/I.)
7.86 (6.87)
Selenium (ug/L)
Field pH (S.U.)6.14(6.25)
Beryllium (ug/L)
MW-03 (Class HI)Cadmium (ug/L)
Zinc (ug/L)
Thallium (ug/1)
Sulfate (mg/I.)
Nitrate + Nitrite (as N)
_______(mg/L)_______
Fluoride (Mg/L)
Field pH (S.U.)6.23 (6.24)
MW-3A (Class HI)
Sulfate (mg/I.)
Nitrate + Nitrite (as N)
_______(mg/L)
IDS (mg/1.)
Selenium (ug/L)
MW-05 (Class II)Uranium (ug/L)
Selenium (ug/L)
MW-12 (Class ffl)
Field pH (S.U.)
MW-15 (Class 01)Selenium (ug/L)
Field pH (S.U.)
Q12010 Results Q2 2010 Results 03 2010 Results Q4 2010 Results
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in
Current GWDP Q1 Sample Date Q1 Result Q2 Sample
Date Q2 Result May Monthly
Sample Date
May
Monthly
Result
June Monthly
Sample Date
June Monthly
Result
July Monthly
Sample Date
July Monthly
Result
August
Monthly
Sample Date
August Monthly
Result
Q3 Sample
Date Q3 Result
October
Monthly
Sample Date
October
Monthly
Result
Q4 Sample
Date Q4 Result
December
Monthly Sample
Date
December
Monthly Result
Required Semi-Annual Sampling Wells, continued
MW-18 (Class ID)
Thallium (ug/1)
Sulfate (mg/L)
Field pH (S.U.)
TDS (mg/L)
1.95
1938.9
3.73
9/15/2010
MW-19 (Class ID)Field pH (S.U.)6.78-8.5 6.61 (6.66)
Nitrate + Nitrite (as N)
(mg/L)
5/4/2010
Cadmium (ug/L)2.5
Fluoride (mg/L)
MW-24 (Class ID)Sulfate (mg/L)
Thallium (ug/L)5/6/2010
Field pH (S.U.)5.91 (5.78)
Nitrate + Nitrite (as N)
_______(mg/I.)_______
Chloride (mg/L)
MW-27 (Class HI)Sulfate (mg/I.)
Field pH (S.U.)5/3/2010
TDS (mg/L)
Gross Alpha minus Rn & U
(pCi/L)
Chloride (mg/L)
Cadmium (ug/L)
MW-28 (Class III)Uranium (ug/L)NS 9/14/2010
Vanadium (ug/L)
Field pH (S.U.)
TDS (mg/I.)
MW-29 (Class m)Sulfate (mg/L)NS
Field pH (S.U.)
Gross Alpha minus Rn & U
(pCi/L)
MW-32 (Class HI)Chloride (mg/L)
Field pH (S.U.)
GWCL values are taken from August 24, 2012 version of GWDP.
NS = Not Required and Not Sampled
i>r, — ixcquncu aiiu
Exceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
Table 1 - GWCL Exceedances for Fourth Quarter 2015 under the August 24, 2012 GWDP
Q12011 Results Q2 2011 Results Q3 2011 Results Q4 2011 Results
Monitoring
Well (Water
Class)
Constituent Exceeding
GWCL
GWCL in
August 24,
2012 GWDP
January 2011
Monthly
Sample Date
January 2011
Monthly Sample
Result
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 Quarterly Sampling Wells
MW-11
(Class II)Manganese (ug/L)3/15/2011 170 6/15/2011 121 12/14/2011
MW-14
(Class HI)Field pH (S.U.)3/14/2011 4/4/2011 6.23
(6.41)6.71 (6.82)12/12/2011
MW-25
(Class IE)
Field pH (S.U.) 6.5 - 8.5 8/3/2011
8/30/11
6.42
(6.54)
Chloride (mg/L)5/11/2011 6/20/2011
Cadmium (ug/L)
Uranium (ug/L)
MW-26
(Class HI)
Nitrate + Nitrite (as N)
(mg/L)
Uranium (ug/L)
Chloroform (ug/L)
Chloride (mg/L)58.31 2/16/2011 8/3/2011
8/30/11
Field pH (S.U.)6.07
(6.58)
Dichloromethane
(Methylene Chloride)
(ug/L)
MW-30
(Class II)
Nitrate + Nitrite (as N)
_______(mg/L)_______
Chloride (mg/L)
Uranium (ug/L)
Field pH (S.U.)6.5 - 8.5 3/14/2011 10/4/2011
11/29/2011 6.96 (6.73)
Ammonia (mg/L)
Fluoride (mg/L)
Selenium (ug/L)
MW-31
(Class HI)
Nitrate + Nitrite (as N)
_______(mg/L)_______
TDS (mg/L)1320
Chloride (mg/I.)
Selenium (ug/L)11/8/2011(11/29/12)
Field pH (S.U.)7.28 7.01 (7.34)
Sulfate (mg/L)532 539
MW-35
(Class D)
Manganese (ug/L)
Thallium (ug/1)
Gross Alpha minus Rn
& U (pCi/L)
Field pH (S.U.)
Selenium (ug/L)10.5
Uranium (ug/L)NA NA
Required Semi-Annual Sampling Wells
MW-01
(Class H)
Chloride (mg/L)
Field pH (S.U.)
Sulfate (mg/I.)
6.77 - 8.5 7.06
(7.67)
NA NA
7.08 (7.51)
MW-03
(Class IE)
Selenium (ug/L)
Field pH (S.U.)6.5 - 8.5 6.53 (6.83)
Beryllium (ug/L)
Cadmium (ug/L)
Zinc (ug/L)
Thallium (ug/1)
Sulfate (mg/L)
Nitrate + Nitrite (as N)
(mg/L)______0.73
Fluoride (Mg/L)
MW-03A
(Class ID)
Field pH (S.U.)6.5 - 8.5 6.5 (6.92)
Sulfate (mg/L)3750
Nitrate + Nitrite (as N)
(mg/L)1.3
TDS (mg/I.)5805 5630
Selenium (ug/L)
MW-05
(Class ID Uranium (ug/L)
MW-12
(Class ID)
Selenium (ug/L)
Field pH (S.U.)6.7 (6.97)
MW-15
(Class HI)
Selenium (ug/L)
Field pH (S.U.)NS 112
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 m)
Thallium (ug/1)
Sulfate (mg/L)
Field pH (S.U.)
TDS (mg/L)
NA
8/10/20119/21/11 5.95
(6.30)
2020
6.55 (6.63)
MW-19
(Class HI)
MW-24
(Class HI)
Field pH (S.U.)6.88 (7.02)
Nitrate + Nitrite (as N)
_______(mg/I.)_______
Cadmium (ug/L)
NS
2.78
2.6
2.61
Fluoride (mg/L)
Sulfate (mg/L)
Thallium (ug/L)<0.50
Field pH (S.U.)
MW-27
(Class m)
Nitrate + Nitrite (as N)
______(mg/L)_______
Chloride (mg/L)
Sulfate (mg/L)
Field pH (S.U.)
TDS (mg/L)
Gross Alpha minus Rn
& U (pCi/L)0.7
MW-28
(Class HI)
Chloride (mg/L)
Cadmium (ug/1.)
Uranium (ug/L)
Vanadium (ug/L)
Field pH (S.U.)6.07 (6.11)
MW-29
(Class HI)
TDS (mg/L)
Sulfate (mg/1.)
Field pH (S.U.)
MW-32
(Class HI)
Gross Alpha minus Rn
& U (pCi/L)
Chloride (mg/L)8/2/2011 8/30/11
Field pH (S.U.)5.99 6.10
(6.20)
GWCL values are taken from August 24, 2012 version
of GWDP.
NS = Not Required and Not Sampled
Exceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
Table 1 - GVVCL Exceedances for Fourth Quarter 2015 under the August 24,2012 GVYDP
Q12012 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 H)Manganese (ug/L)1/26/2012 102 3/13/2012 5/8/2012 127
MW-14 (Class HI)Field pH (S.U.)6.36
Field pH (S.U.)6.63
MW-25 (Class III)Chloride (mg/L)3/14/2012 6/18/2012
Cadmium (ug/L)
Uranium (ug/L)
Nitrate + Nitrite (as
N) (mg/L)
Uranium (ug/L)
Chloroform (ug/L)
MW-26 (Class HI)Chloride (mg/L)2/15/2012
Field pH (S.U.)
Dichloromethane
(Methylene Chloride)
(ug/L)
2/15/2012
2/21/2012
3/8/201?
172 (6.91)
(6.71)
5/7/2012
6/26/2012
7.00(7.01)7/11/2012
8/16/2012
7.10
(6.80)
2/15/2012 4.9
Nitrate + Nitrite (as
N) (mg/L)
Chloride (mg/L)
Uranium (ug/L)
MW-30 (Class II)Field pH (S.U.)
Ammonia (mg/L)
Fluoride (mg/L)
Selenium (ug/L)
Nitrate + Nitrite (as
N) (mg/L)
TPS (mg/L)
MW-31 (Class HI)Chloride (mg/L)
Selenium (ug/L)
6/18/2012
6/29/2012
Field pH (S.U.)7.28 (7.63)
Sulfate (mg/L)497
Manganese (ug/L)
Thallium (ug/1)
Gross Alpha minus
Rn & U (pCi/L)
MW-35 (Class U)
Field pH (S.U.)
Selenium (ug/L)
Uranium (ug/L)22.2
6.5
Required Semi-Annual Sampling Wells
MW-01 (CLASS
n)
Chloride (mg/I.)
Field pH (S.U.)
Sulfate (mg/L)
6.77 - 8.5
18
Selenium (ug/L)
Field pH (S.U.)
Beryllium (ug/L)
MW-03 (Class ffl)Cadmium (ug/L)
Zinc (ug/L)
Thallium (ug/1)
Sulfate (mg/L)
Nitrate + Nitrite (as
N) (mg/L)
Fluoride (Mg/I.)
Field pH (S.U.)6.5 - 8.5
MW-03A (Class
m)
Sulfate (mg/L)3640
Nitrate + Nitrite (as
N) (mg/L)
TDS (mg/L)5805
Selenium (ug/L)
MW-05 (Class II)Uranium (ug/L)
Selenium (ug/L)
MW-12 (Class HI)Field pH (S.U.)6.5 - 8.5 11/27/2012
MW-15 (Class El)Selenium (ug/L)
Field pH (S.U.)
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
MW-18 (Class m)
Thallium (ug/1)
Sulfate (mg/L)
Field pH (S.U.)
TDS (mg/L)
NA 3.51
MW-19 (Class HI)Field pH (S.U.)
Nitrate + Nitrite (as
N) (mg/L)
Cadmium (ug/L)
Fluoride (mg/L)
MW-24 (Class IE)Sulfate (mg/L)
Thallium (ug/L)
Field pH (S.U.)
Nitrate + Nitrite (as
N) (mg/1,)
Chloride (mg/L)
MW-27 (Class III)Sulfate (mg/L)
Field pH (S.U.)
TDS (mg/L)
Gross Alpha minus
Rn & U (pCi/L)
Chloride (mg/L)7/16/2012
8/1/2012
Cadmium (ug/L)
MW-28 (Class ID)Uranium (ug/L)
Vanadium (ug/L)
Field pH (S.U.)7/16/2012
8/1/2012
6.38
SMIL
TDS (mg/L)
MW-29 (Class El)Sulfate (mg/L)
Field pH (S.U.)7/16/2012
8/1/2012
6.68
(6.45)
NA
NA
Gross Alpha minus
Rn & U (pCi/L)
MW-32 (Class El)Chloride (mg/L)
Field pH (S.U.)
GWCL values are taken from August 24, 2012 v
GWDP.
NS = Not Required and Not Sampled
Exceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
Q1 2013 Results
Table 1 - GWCL Exceedances for Fourth Quarter 2015 under the August 24,2012 GWDP
Q2 2013 Results Q3 2013 Results Q4 2013 Results
Monitoring
Well (Water
Class)
Constituent Exceeding
GWCL
GWCL in August 24,
2012 GWDP
January 2013
Monthly Sample
Date
January
2013
Monthly
Result
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 Quarterly Sampling Wells
MW-11 (Class
ID Manganese (ug/L)5/14/2013 10/22/2013
MW-14 (Class
m)Field pH (S.U.)
Field pH (S.U.)
MW-25 (Class
m)Chloride (mg/L)
Cadmium (ug/L)
Uranium (ug/L)
Nitrate + Nitrite (as N)
(mg/L)
Uranium (ug/L)
Chloroform (ug/L)
MW-26 (Class
m)
Chloride (mg/L)6/5/2013
6/25/2013
Field pH (S.U.)
Dichloromethane
(Methylene Chloride)
_______(ug/L)_______
52.4*
[12.1]
Nitrate + Nitrite (as N)
_______(mg/L)_______
Chloride (mg/L)
Uranium (ug/L)
MW-30 (Class
n)Field pH (S.U.)
Ammonia (mg/L)
Fluoride (mg/L)
Selenium (ug/L)
Nitrate + Nitrite (as N)
_______(mg/1.)_______
TDS (mg/L)
MW-31 (Class
ni)
Chloride (mg/L)
Selenium (ug/L)
Field pH (S.U.)
Sulfate (mg/L)
Manganese (ug/L)
Thallium (ug/1)
MW-35 (Class
n)
Gross Alpha minus Rn <5
U (pCi/L)
Field pH (S.U.)
Selenium (ug/L)
Uranium (ug/L)22.0
Required Semi-Annual Sampling Wells
MW-01 (Class
n)
Chloride (mg/L)
Field pH (S.U.)
Sulfate (mg/L)
Selenium (ug/L)
Field pH (S.U.)
MW-03 (Class
HI)
Beryllium (ug/L)
Cadmium (ug/L)
Zinc (ug/L)
Thallium (ug/1)
Sulfate (mg/L)
Nitrate + Nitrite (as N)
_______(mg/L)_______
Fluoride (Mg/L)
Field pH (S.U.)
MW-03A (Class
m)
Sulfate (mg/L)
Nitrate + Nitrite (as N)
(mg/L)
TDS (mg/L)5805
Selenium (ug/L)
MW-05 (Class
___0]___Uranium (ug/L)
MW-12 (Class
nu
Selenium (ug/L)
Field pH (S.U.)
MW-15 (Class
ni)
Selenium (ug/L)
Field pH (S.U.)
Q12013 Results Q2 2013 Results Q3 2013 Results Q4 2013 Results
Monitoring
Well (Water
Class)
Constituent Exceeding
GWCL
GWCL in Current
GWDP
January 2013
Monthly Sample
Date
January'
2013
Monthly
Result
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
m)
Thallium (ug/1)
Sulfate (mg/L)
Field pH (S.U.)
TDS (mg/L)
2.81
MW-19 (Class
m)
Field pH (S.U.)
Nitrate + Nitrite (as N)
(mg/L)
Cadmium (ug/L)
MW-24 (Class
HI)
Fluoride (mg/L)
Sulfate (mg/1,)
Thallium (ug/L)
Field pH (S.U.)
Nitrate + Nitrite (as N)
_______(mg/1,)_______
MW-27 (Class
in)
Chloride (mg/L)
Sulfate (mg/L)
Field pH (S.U.)
TDS (mg/L)
Gross Alpha minus Rn &
U (pCi/L)
Chloride (mg/L)
MW-28 (Class
m)
Cadmium (ug/L)
Uranium (ug/L)12/4/2013
Vanadium (ug/L)
Field pH (S.U.)
TDS (mg/1,)
MW-29 (Class
m)
Sulfate (mg/L)
Field pH (S.U.)
MW-32 (Class
in)
Gross Alpha minus Rn &
U (pCi/L)
Chloride (mg/L)
Field pH (S.U.)
GWCL values are taken from August 24, 2012 version of GWDP.
NS = Not Required and Not Sampled
Exceedances are shown in yellow
Values in () parentheses are the field pH measurements for the resampled analyses.
, 2012 GVVDP
Monitoring
Well (Water
Class)
Constituent Exceeding
GWCL
GWCL in August
24,2012 GWDP
Q12014
JanuaryJanuary 2014 2014Monthly Sa MonthlyDateResult
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
Q32014
Result
October
2014
Monthly
Sample
Date
Q.W1* Halt.
October I
2014 Q4 2014 Q4 2014 _Monthly |Sample Date) Result Sain^J
December
Result
December
2014 Monthly
Result
Required Quarterly Sampling Wells
MW-11 (Class
___
Manganese (ug/L)2/24/2014 5/14/2014 128 6/3/2014
MW-14 (Class
m)Field pH (S.U.)2/24/2014
Field pH (S.U.)
MW-25 (Class
m)Chloride (mg/L)30.4 3/10/2014 6/2/2014 7/28/2014 10/6/2014
Cadmium (ug/L)1.24
Uranium (ug/L)
Nitrate + Nitrite (as N)
_______(mg/1,)_______
Uranium (ug/L)
Chloroform (ug/L)
MW-26 (Class
HI)
Chloride (mg/L)12/10/14
12/15/14
Field pH (S.U.)
Dichloromethane
(Methylene Chloride)
(ug/L)
6.25 (6.44)
Nitrate + Nitrite (as N)
_______(mg/L,)_______
Chloride (mg/L)
Uranium (ug/L)7.35
MW-30 (Class
n)Field pH (S.U.)6.89 6.82
Ammonia (mg/L)<0.05
Fluoride (mg/L)
Selenium (ug/L)
Nitrate + Nitrite (as N)
_______(mg/L)_______
TDS (mg/1,)
MW-31 (Class
HI)
Chloride (mg/L)
Selenium (ug/L,)75.8
Field pH (S.U.)6.5 - 8.5
Sulfate (mg/L)532
Manganese (ug/L)
Thallium (ug/1)<0.5
MW-35 (Class
H)
Gross Alpha minus Rn &
U (pCi/L)3.98 3.36
1/8/2014
Field pH (S.U.)6.5 - 8.5
Selenium (ug/L)12.5
Uranium (ug/1,)26.9
Required Semi-Annual Sampling Wells
MW-01 (Class
n)
Chloride (mg/L)
Field pH (S.U.)
Sulfate (mg/L)
6.77 - 8.5 2/20/2014
NA
Selenium (ug/L)
Field pH (S.U.)
MW-03 (Class
ffl)
Beryllium (ug/L)
Cadmium (ug/L)
Zinc (ug/L)173.19 5/30/2014 9/16/2014
Thallium (ug/1)
Sulfate (mg/L)
Nitrate + Nitrite (as N)
_______(mg/L)
Fluoride (Mg/L)
Field pH (S.U.)
MW-03A (Class
m)
Sulfate (mg/L)
Nitrate + Nitrite (as N)
(mg/L)
TDS (mg/1,)
Selenium (ug/L)
MW-05 (Class
ID Uranium (ug/L)
MW-12 (Class
ffl)
Selenium (ug/L)
Field pH (S.U.)
MW-15 (Class
ffl)
Selenium (ug/L)
Field pH (S.U.)6/4/2014 9/2/2014
Q120X4 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 February
2014 2014
Monthly Monthly
Result 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 Q2 2014
Monthly Sample
Result 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 Q4 2014
Sample Date Result
December
2014 Monthly
Sample Date
December
2014 Monthly |
Result
Required Semi-Annual Sampling Wells, continued
MW-18 (Class
HI)
Thallium (ug/1)
Sulfate (mg/L)
Field pH (S.U.)
TDS (mg/L)
1938.9
9/9/2014
MW-19 (Class
m)
Field pH (S.U.)6.78-8.5
Nitrate + Nitrite (as N)
(mg/L)
Cadmium (ug/L)2.5
MW-24 (Class
m)
Fluoride (mg/I.)
Sulfate (mg/I.)
Thallium (ug/L)1.85
Field pH (S.U.)
Nitrate + Nitrite (as N)
_______(mg/1.)_______
MW-27 (Class
m)
Chloride (mg/L)
Sulfate (mg/L)
Field pH (S.U.)
TDS (mg/L)
Gross Alpha minus Rn &
U (pCi/l.)
Chloride (mg/L)
MW-28 (Class
m)
Cadmium (ug/L)
Uranium (ug/L)
Vanadium (ug/L)30
Field pH (S.U.)
TDS (mg/L)
MW-29 (Class
m)Sulfate (mg/L)
Field pH (S.U.)
MW-32 (Class
m)
Gross Alpha minus Rn i
U (pCi/L)
Chloride (mg/L)
Field pH (S.U.)
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 2015 under theAugust 24,2012 GYVDP
Q12015 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 E)Manganese (ug/L)
M W-14 (Class HI)Field pH (S.U.)
Field pH (S.U.)6/1/2015
6/23/2015 6.59, 6.53
MW-25 (Class m)Chloride (mg/L)
Cadmium (ug/L)
Uranium (ug/L)
Nitrate + Nitrite (as N)
_______(mg/L)_______
Uranium (ug/L)
Chloroform (ug/L)
MW-26 (Class HI)Chloride (mg/L)
Field pH (S.U.)6/3/2015
6/24/2015
8/10/2015
8/17/2015
6.58, 6.20
Dichloromethane
(Methylene Chloride)
(ug/L)
Nitrate + Nitrite (as N)
_______(mg/L)_______
Chloride (mg/L)
Uranium (ug/L)
MW-30 (Class II)Field pH (S.U.)6/2/2015
6/24/2015
Ammonia (mg/L)
Fluoride (mg/L)
Selenium (ug/L)
Nitrate + Nitrite (as N)
_______(mg/L)_______
TPS (mg/L)
MW-31 (Class III)Chloride (mg/L)
Selenium (ug/L)
Field pH (S.U.)6/1/2015
6/23/2015 7.14, 7.08
Sulfate (mg/L)
Manganese (ug/L)201, 176
Thallium (ug/1)
Gross Alpha minus Rn &
U (pCi/L)
MW-35 (Class H)
Field pH (S.U.)6/2/2015
6/23/2015 6.50, 6.41
9/15/15
9/22/15
9/28/15
4.81, 6.13
6.52, 6.41,
6.49
Selenium (ug/L)
Uranium (ug/L)22.5
Required Semi-Annual Sampling Wells
MW-01 (Class D)
Chloride (mg/L)
Field pH (S.U.)
Sulfate (mg/L)
Selenium (ug/L)4/23/2015
5/20/2015
Field pH (S.U.)
4/23/2015
4/29/2015
5/20/2015
6.18, 6.51,
6.23
Beryllium (ug/L)
MW-03 (Class III)Cadmium (ug/L)
Zinc (ug/L)
4/23/2015
5/20/2015
1.44, 2.08
5.03,14.2
238, 373
Thallium (ug/1)4/23/2015
5/20/2015 1.47, 1.51
Sulfate (mg/L)
Nitrate + Nitrite (as N)
(mg/L)
Fluoride (mg/I.)
Field pH (S.U.)4/23/2015
4/29/2015
MW-03 A (Class
m)
Sulfate (mg/L)
Nitrate + Nitrite (as N)
(mg/L)
TPS (mg/L)
Selenium (ug/L)
MW-05 (Class II)Uranium (ug/L)
Selenium (ug/L)
MW-12 (Class III)
Field pH (S.U.)4/21/2015
4/28/2015 6.50, 6.70
MW-15 (Class HI)Selenium (ug/L)
Field pH (S.U.)
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 Semi-Annual Sampling Wells, continued
MW-18 (Class HI)
Thallium (ug/1)
Sulfate (mg/L)
Field pH (S.U.)
TDS (mg/L)
2.81 NA 2.69
3190
6.30
MW-19 (Class IE)Field pH (S.U.)6.78-8.5 6.70
Nitrate + Nitrite (as N)
(mg/1,)_______
2/2/2015
2.82
Cadmium (ug/L)
Fluoride (mg/1,)
MW-24 (Class HI)Sulfate (mg/L)2880
Thallium (ug/L,)
Field pH (S.U.)5/28/2015
6/24/2015 5.39, 5.98
Nitrate + Nitrite (as N)
_______(mg/L)_______
Chloride (mg/L)
MW-27 (Class HI)Sulfate (mg/L)
Field pH (S.U.)2/9/2015
TDS (mg/L)
Gross Alpha minus Rn <*
U (pCi/L)
Chloride (mg/L)
Cadmium (ug/L)
MW-28 (Class HI)Uranium (ug/L)4.87
Vanadium (ug/L)
Field pH (S.U.)4/21/2015
4/27/2015 >8, 6.17
TDS (mg/L)4310
MW-29 (Class IE)Sulfate (mg/L,)
Field pH (S.U.)
Gross Alpha minus Rn &
U (pCi/L)3.33 1.89
MW-32 (Class III)Chloride (mg/L)
Field pH (S.U.)
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
----------------------------------------------------------------Q12016"Results---------------------------------
-------..............
Table 1 - GW CL Exceedances for Fourth Quarter 2015 under the August 24, 2012 GWDP
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCLin
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
Sample Frequency
Required Quarterly Sampling Wells
MW-11 (Class H)Manganese (ug/L)Quarterly
MW-14 (Class HI)Field pH (S.U.)Quarterly
Field pH (S.U.)
MW-25 (Class HI)Chloride (mg/L)
Cadmium (ug/L)
Uranium (ug/L)
Quarterly
Quarterly
Quarterly
Quarterly
Nitrate + Nitrite (as N)
(mg/L)
Uranium (ug/L)
Chloroform (ug/L)
MW-26 (Class HI)Chloride (mg/L)
Field pH (S.U.)
Dichloromethane
(Methylene Chloride)
(ug/L)
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Nitrate + Nitrite (as N)
_______(mg/L)_______
Chloride (mg/L)
Uranium (ug/L)
MW-30 (Class II)Field pH (S.U.)6.5 - 8.5
Ammonia (mg/L)
Fluoride (mg/I.)
Selenium (ug/L)
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Nitrate + Nitrite (as N)
_______(mg/I.)_______
TDS (mg/L)
MW-31 (Class m)Chloride (mg/L)
Selenium (ug/L)1/19/2016 2/15/2016
Field pH (S.U.)
Sulfate (mg/L)
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Manganese (ug/L)
Thallium (ug/1)
Gross Alpha minus Rn &
U (pCi/L)
MW-35 (Class H)2/10/2016 3/2/2016
Field pH (S.U.) 6.5 - 8.5
Selenium (ug/L)
Uranium (ug/L)
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Required Semi-Annual Sampling
MW-01 (Class H)
Chloride (mg/L)
Field pH (S.U.)
Sulfate (mg/I.)
6.77 - 8.5
Semi-Annually
Semi-Annually
Semi-Annually
Selenium (ug/L)
Field pH (S.U.)6.5 - 8.5
Beryllium (ug/1.)0.694
MW-03 (Class HI)Cadmium (ug/L)
Zinc (ug/L)
Thallium (ug/1)
Sulfate (mg/I.)
Nitrate + Nitrite (as N)
_______(mg/L)_______
Fluoride (mg/I.)
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
Field pH (S.U.)
MW-03A (Class HI)
Sulfate (mg/L)
Nitrate + Nitrite (as N)
(mg/L)0.951
TDS (mg/L)5560
Selenium (ug/L)
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
MW-05 (Class II)Uranium (ug/L)2/15/2016 Semi-Annually
M W-12 (Class m)
Selenium (ug/L)
Field pH (S.U.)
Semi-Annually
Semi-Annually
MW-15 (Class HI)Selenium (ug/L)
Field pH (S.U.)
Semi-Annually
Semi-Annually
Q1 2015 Results
Monitoring Well
(Water Class)
Constituent Exceeding
GWCL
GWCL in
Augast 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
Sample Frequency
Required Semi-Annual Sampling Wells, continued
MW-18 (Class HI)
Thallium (ug/1)
Sulfate (mg/L)
Field pH (S.U.)
TDS (mg/L)
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
MW-19 (Class III)Field pH (S.U.)
Nitrate + Nitrite (as N)
(mg/L)
Semi-Annually
Semi-Annually
Cadmium (ug/L)
Fluoride (mg/L)
MW-24 (Class ffl)Sulfate (mg/1.)
Thallium (ug/L)
Field pH (S.U.)
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
Nitrate + Nitrite (as N)
_______(mg/L)_______
Chloride (mg/I.)
MW-27 (Class III)Sulfate (mg/I.)
Field pH (S.U.)
TDS (mg/L)
Gross Alpha minus Rn &
U (pCi/I.)
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
Chloride (mg/L)
Cadmium (ug/L)
MW-28 (Class III)Uranium (ug/L)
Vanadium (ug/L)
Field pH (S.U.)
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
Semi-Annually
TDS (mg/I.)
MW-29 (Class III)Sulfate (mg/L)
Field pH (S.U.)
Semi-Annually
Semi-Annually
Semi-Annually
Gross Alpha minus Rn &
U (pCi/L)
MW-32 (Class III)Chloride (mg/L)
Field pH (S.U.)
Semi-Annually
Semi-Annually
Semi-Annually
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 the DWMRC letters of February 25, 2016 and March 30, 2016, these constituents will no longer be monitored on an accelerated schedule.
These constituents will be dropped from this report after this quarter.