DRC-2012-002336 - 0901a0688032306a

DRC-2012-002336
Energy Fuels Resources (USA) Inc.
225 Union Blvd. Suite 600
Lakewood, CO, US, 80228
303 974 2140
www energyfuels com
November 15, 2012
VIA PDF AND FEDEX
Rusty Lundberg,
Director, Division of Radiation Control
Utah Department of Environmental Quality
195 North 1950 West
PO Box 144850
Salt Lake City, UT 84114-4850
Re: State of Utah Ground Water Discharge Permit No. UGW370004
White Mesa Uranium Mill - Notice Pursuant to Part LG.l (a)
Dear Mr Lundberg
The White Mesa Mill (the "Mill") performed third quarter ("Q3") groundwater monitonng dunng the
penod from July 1, to September 30, 2012 under the July 14, 2011 and August 24, 2012 versions of the
Mill's Groundwater Discharge Permit (the "GWDP") All analytical data needed for companson to the
GWCLs were received durmg the penod ending October 17,2012
Pursuant to Part IG 1 a) of the GWDP, (July 14, 2011 and August 24, 2012) please take notice that the
concentrations of specific constituents in the momtormg wells highlighted m yellow and bold italics m 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 monitonng
penod to the next by chartmg ongoing monitonng of the same well in the same row, and by highlighting
exceedances (in color and bold italics)
Part IG 1 c) of the GWDP states "that the Permittee shall prepare and submit withm 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 quahty to ensure that Permit limits will not be exceeded at the compliance monitonng point
and that DMT or BAT will be reestablished " The summary below relating to Q3 2012 exceedances
includes, for each exceedance, a bnef discussion of whether such a plan and schedule is or is not required
or appropnate at this time in light of other actions currently being undertaken by Energy Fuels Resources
(USA) hic ("EFRI"), as determined by Utah Department of Environmental Quality ("UDEQ") Staff and
as stated in teleconferences with EFRI on Apnl 27 and May 2, 2011 Based on the assessments noted
below relating to the Q3 exceedances, a plan and schedule for the exceedance of Total Dissolved Solids
('TDS") in MW-29 is required Regarding other Q3 Exceedances noted herein, a plan and schedule will
not be requned for the following reasons A Plan and Time Schedule will not be prepared for monitonng
wells with two successive exceedances in Q3 2012 if successive exceedances were reported in a previous
quarter and were included in the Source Assessment Report ("SAR"), subnutted October 10, 2012 A
Plan and Time Schedule will not be submitted because the assessment processes and conclusions have not
changed smce this previous subnussion Additionally, a Plan and Time Schedule will not be prepared for
successive exceedances of nitrate + nitnte, chlonde, chloroform, methylene chlonde and pH because
these constituents have been the subject of ongoing investigations at the Mill as discussed below
Letter to Mr Rusty Lundberg
November 15, 2012
Page 2
Under the July 14, 2011 and August 24, 2012 revisions of 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 requnes that constituent
concentrations in each momtormg 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 necessanly represent impacts to groundwater from Mill operations
The following are items of note relevant to all exceedance data presented herein
1 Nitrate + nitnte and chlonde m monitonng 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 acknowledge that it has not been possible to date to determine the source(s), cause(s),
attnbution, magnitudes of contnbution, and proportion(s) of the local nitrate + nitnte and chlonde
m groundwater EFRI submitted a Corrective Action Plan ("CAP") in Febmary 2012 for nitrate
+ nitnte and chlonde in groundwater The CAP is currently undergoing a public comment
penod Based on mformation provided by UDEQ in teleconferences on Apnl 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 + nitnte and chlonde exceedances at this time
2 As discussed m previous quarterly groundwater samplmg reports, the background levels and
GWCLs for pH were established based on eight or more quarters of laboratory data, which are
histoncally higher than field data due to effects from the evolution of carbon dioxide, and
subsequent increase in pH from field to lab 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 EFRI's geochemical consultant, INTERA, Inc, EFRI compared the Mill's most recent
groundwater pH data from the Q2 of 2011, mcludmg accelerated sampling results as recent as
June 2011, and noted that all of the June 2011 groundwater results, and many of the other results
from Q2, were already outside the revised GWCLs that were to be proposed in the June 30, 2011
letter By the letter dated June 30, 2011, EFRI proposed to submit to DRC a Work Plan and
Schedule to complete investigations to address the site-wide pH issue, following a meeting with
DRC, to discuss EFRI's fmdmgs to date and to agree upon the steps and milestone dates to be
incorporated in the Work Plan and Schedule Pursuant to teleconferences with DRC on December
5, and December 19, 2011, EFRI submitted the Work Plan and Schedule on January 20, 2012 and
a revised plan based on DRC comments on Apnl 13, 2012 The Work Plan and Time Schedule
were approved by DRC Based on the approved Work Plan and Time Schedule, EFRI and DRC
entered into a Stipulated Consent Agreement ("SCA") dated July 12, 2012 Due to the current
commitment and on-going study to evaluate site field pH conditions in the SCA, the 30-day plan
and schedule for assessment is not required for field pH exceedances
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 samplmg penods in Q3 2012 However, the 30-day plan and schedule contemplated in
Part IG 1 c) of the GWDP will not be required for these particular consecutive exceedances which
occurred m Q3 of 2012, for the reasons stated below One time exceedances and non-successive
Letter to Mr Rusty Lundberg
November 15, 2012
Pages
exceedances are noted on Table 1, but not listed below Consecutive exceedances which occurred in
previous reporting penods are discussed in the Source Assessment Report subnutted to DRC on October
10, 2012
MW-11
• Manganese concentrations exceeded the GWCL in MW-11 in the Q3 (July) and August sampling
events Manganese has exceeded the GWCL in MW-11 since the issuance of the January 20,
2010 GWDP, which established intra-well GWCLs A plan or schedule to address the Q3
exceedances is not necessary and is not being submitted because exceedances have been
addressed m the SAR which was submitted to DRC on October 10,2012
MW-26
• Nitrate + nitnte concentration exceeded its GWCL m all sampling events dunng Q3 2012 As
mentioned above, a CAP has previously been subnutted and is undergoing public review,
therefore a plan to address this consecutive exceedance is not necessary and is not being
subnutted
• Chloroform in MW-26 has exceeded its GWCL for all of the monitonng penods for Q3 2012
MW-26 IS used as a pumping well for the ongoing chloroform capture program and is expected to
yield increased concentrations of chloroform Because analyte values in pumping wells vary
wildly with system operation and are not representative of groundwater conditions EFRI has
requested in the October 10, 2012 SAR that the Director elinunate GWCLs for the pumping
wells
• Methylene chlonde in MW-26 exceeded its GWCL m the August and September momtonng
penods MW-26 is used as a pumping well for the ongoing chloroform capture program and is
expected to yield increased concentrations of methylene chlonde Because analyte values in
pumping wells vary wildly with system operation and are not representative of groundwater
conditions EFRI has requested in the October 10, 2012 SAR that the Director eliminate GWCLs
for the pumping wells
MW-26 Note: As stated m the September 2009 Statement of Basis (page 23) in support of the January
20, 2010 revisions to the GWDP, "Ii]t should be noted that, because MW-26 is a pumpmg well for
chloroform removal, concentrations of all constituents in that well are subject to potential vanation over
time as a result of the pumping activity This will be taken mto account by the Executive Secretary in
detemuning compliance for this well" Based on mformation provided by UDEQ m teleconferences on
Apnl 27, and May 2, 2011, due to the current pumpmg 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 chlonde m MW-26 Because analyte values m pumpmg wells vary wildly
with system operation and are not representative of groundwater conditions EFRI has requested in the
October 10,2012 SAR that the Director elinunate GWCLs for the pumping wells
Chlonde concentration exceeded its GWCL in all of the monitonng penods for Q3 2012 As
mentioned above, a CAP has previously been submitted for nitrate + nitnte which is expected to
address chlonde, therefore a plan to address this consecutive exceedance is not necessary and is
not being submitted
Letter to Mr Rusty Lundberg
November 15, 2012
Page 4
• Uranium concentration exceeded its GWCL m the August and September sampling events A
plan or schedule to address the Q3 exceedances is not necessary and is not being submitted
because exceedances have been addressed in the SAR which was subnutted to DRC on October
10, 2012
MW-30
Nitrate + nitnte concentration exceeded its GWCL in all sampling events dunng Q3 2012 and
dunng previous quarters As mentioned above, a CAP has previously been subnutted and is
undergoing public review, therefore a plan to address this consecutive exceedance is not
necessary and is not bemg subnutted
Chlonde concentration exceeded its GWCL m the August and September sampling events As
mentioned above, a CAP has previously been submitted for nitrate + nitnte which is expected to
address chlonde, therefore a plan to address this consecutive exceedance is not necessary and is
not being submitted
Selenium concentration exceeded its GWCL in all sampling events dunng Q3 2012 and dunng
previous quarters A plan or schedule to address the Q3 exceedances is not necessary and is not
being submitted because exceedances have been addressed m the SAR which was subnutted to
DRC on October 10,2012
MW-31
Nitrate + nitnte concentration exceeded its GWCL in all sampling events dunng Q3 2012 and
dunng previous quarters As mentioned above, a CAP has previously been subnutted and is
undergoing pubhc review, therefore a plan to address this consecutive exceedance is not
necessary and is not bemg submitted
Chlonde concentration exceeded its GWCL in all sampling events dunng Q3 2012 As
mentioned above, a CAP has previously been submitted for nitrate + nitnte which is expected to
address chlonde, therefore a plan to address this consecutive exceedance is not necessary and is
not bemg subnutted
TDS concentration exceeded its GWCL in all of the monitonng penods for Q3 2012 A plan or
schedule to address the Q3 exceedances is not necessary and is not being subnutted because
exceedances have been addressed m the SAR which was submitted to DRC on October 10,2012
Sulfate concentration exceeded its GWCL in the August and September sampling events A plan
or schedule to address the Q3 exceedances is not/necessary and is not being submitted because
exceedances have been addressed in the SAR which was submitted to DRC on October 10, 2012
MW-35
• Manganese concentration exceeded the GWCL in MW-35 in all of the Q3 samplmg events A
plan and schedule to address the Q3 exceedances is not necessary and is not being subnutted
because exceedances have been addressed in the SAR which was subnutted to DRC on October
10, 2012 An additional plan or schedule to address the Q3 exceedances is not necessary and is
not being submitted because the assessment processes and schedule have not changed since the
October 10, 2012 subnussion It should be noted that background has not yet been established for
MW-35 and that the intenm GWCLs for MW-35 have been set at a fraction of the Groundwater
CNBiarnjas
Letter to Mr Rusty Lundberg
November 15, 2012
Page 5
Quality Standards pending the determination of background The background report for MW-35
is scheduled to be subnutted in the first quarter 2013 pending the collection of 8 data pomts for
each constituent Exceedances of the intenm GWCLs do not necessanly represent impacts to
groundwater from Mill activities
• The uramum concentration exceeded the GWCL m MW-35 in all of the Q3 samplmg events A
plan and schedule to address the Q3 exceedances is not necessary and is not being submitted
because exceedances have been addressed in the SAR which was submitted to DRC on October
10, 2012 An additional plan or schedule to address the Q3 exceedances is not necessary and is
not bemg submitted because the assessment processes and schedule have not changed since the
October 10, 2012 submission It should be noted that background has not yet been established for
MW-35 and that the intenm GWCLs for MW-35 have been set at a fraction of the Groundwater
Quality Standards pending the detemunation of background The background report for MW-35
is scheduled to be subnutted in the first quarter 2013 pending the collection of 8 data points for
each constituent Exceedances of the intenm GWCLs do not necessanly represent impacts to
groundwater from Mill activities
• The Gross Alpha concentration exceeded the GWCL in MW-35 in the August and September
samplmg events A plan and schedule to address the Q3 exceedances is not necessary and is not
bemg subnutted because exceedances have been addressed m the SAR which was submitted to
DRC on October 10, 2012 An additional plan or schedule to address the Q3 exceedances is not
necessary and is not bemg subnutted because the assessment processes and schedule have not
changed since the October 10, 2012 submission It should be noted that background has not yet
been estabhshed for MW-35 and that the mtenm GWCLs for MW-35 have been set at a fraction
of the Groundwater Quality Standards pending the detemunation of background The
background report for MW-35 is scheduled to be subnutted in the first quarter 2013 pending the
collection of 8 data pomts for each constituent Exceedances of the mtenm GWCLs do not
necessanly represent impacts to groundwater from Mill activities
• The selenium concentration exceeded the GWCL in MW-35 in the Q3 (July) and August
sampling events A plan and schedule to address the Q3 exceedances is not necessary and is not
being subnutted because exceedances have been addressed in the SAR which was subnutted to
DRC on October 10, 2012 An additional plan or schedule to address the Q3 exceedances is not
necessary and is not being subnutted because the assessment processes and schedule have not
changed since the October 10, 2012 submission It should be noted that background has not yet
been established for MW-35 and that the mtenm GWCLs for MW-35 have been set at a fraction
of the Groundwater Quality Standards pending the determination of background The
background report for MW-35 is scheduled to be subnutted m the first quarter 2013 pending the
collection of 8 data pomts for each constituent Exceedances of the intenm GWCLs do not
necessanly represent impacts to groundwater from Mill activities
• The thallium concentration exceeded the GWCL m MW-35 m all of the Q3 sampling events A
plan and schedule to address the Q3 exceedances is not necessary and is not being submitted
because exceedances have been addressed in the SAR which was subnutted to DRC on October
10, 2012 An additional plan or schedule to address the Q3 exceedances is not necessary and is
not bemg submitted because the assessment processes and schedule have not changed since the
October 10, 2012 subnussion It should be noted that background has not yet been established for
MW-35 and that the intenm GWCLs for MW-35 have been set at a fraction of the Groundwater
Quahty Standards pending the detemunation of background The background report for MW-35
is scheduled to be subnutted in the first quarter 2013 pending the collection of 8 data points for
CHEFBrnieis
Letter to Mr Rusty Lundberg
November 15, 2012
Pages
each constituent Exceedances of the intenm GWCLs do not necessanly represent impacts to
groundwater from Mill activities
1.2 Quarterly WeUs with New Exceedances Reported in Q3
One new exceedance for the Q3 2012 quarterly well sampling program is listed below This exceedance
will result m an accelerated sampling frequency from quarterly to monthly It is important to note that the
well listed below will only be sampled dunng the monthly events for those constituents which exceeded
the GWCLs. The well listed below will be sampled for all constituents listed m the GWDP dunng the
quarterly events as that is the regularly scheduled sampling for the quarterly wells
• Selenium in MW-31 exceeded the GWCL in the Q3 (July) sampling event
Relative to accelerated reportmg requirements, based on phone conversations with UDEQ on Apnl 5,
2010, reportmg of exceedances is required to be completed within 30 days of receipt of the last data
package for a quarterly momtormg event Similarly, accelerated monitonng is required to commence the
month followmg 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 subnussion of the Exceedance Notice
for wells that are being accelerated from semiannually to quarterly Per teleconferences with UDEQ,
Denison proposed modified language for the GWDP, Part 1 G 1 on May 25, 2012, to document DRC
concurrence with the accelerated reporting and monitonng agreements resulting from the Apnl 5, 2012
teleconference
2.0 Exceedances in Semiannual SampUng WeUs Accelerated to Quarterly
2.1 Semi-annual WeUs with Two Successive Exceedances
As indicated in the attached Table 1, the analytes discussed below exceeded their respective GWCLs for
two successive sampling penods (Q2 and Q3)
MW-3
• Selenium has exceeded the GWCL for both the Q2 sampling event and the Q3 sampling event
The consecutive selenium exceedances noted m MW-3 were previously addressed in the SAR
subnutted to DRC on October 10, 2012 An additional plan or schedule to address the Q3
exceedances is not necessary and is not being submitted because the assessment processes and
schedule have not changed since the October 10, 2012 submission
Fluonde has exceeded the GWCL for both the Q2 samplmg event and the Q3 sampling event
The consecutive fluonde exceedances noted in MW-3 were previously addressed in the SAR
submitted to DRC on October 10, 2012 An additional plan or schedule to address the Q3
exceedances is not necessary and is not being submitted because the assessment processes and
schedule have not changed smce the October 10, 2012 subnussion
MW-18
• Thallium has exceeded the GWCL for both the Q2 sampling event and the Q3 sampling event
The consecutive thallium exceedances noted m MW-18 were previously addressed in the SAR
subnutted to DRC on October 10, 2012 An additional plan or schedule to address the Q3
CHenerruas
Letter to Mr Rusty Lundberg
November 15, 2012
Page 7
exceedances is not necessary and is not being submitted because the assessment processes and
schedule have not changed since the October 10, 2012 submission MW-18 is far upgradient
from the Mill site and cannot be impacted by Mill activities It is therefore not appropnate to
estabhsh compliance standards under the GWDP for this well EFRI has requested in the October
10, 2012 SAR that the Director ehnunate GWCLs for this well
• TDS has exceeded the GWCL for both the Q2 samplmg event and the Q3 samplmg event The
consecutive TDS exceedances noted in MW-19 were previously addressed in the SAR submitted
to DRC on October 10, 2012 An additional plan or schedule to address the Q3 exceedances is
not necessary and is not bemg submitted because the assessment processes and schedule have not
changed since the October 10, 2012 submission MW-19 is far upgradient from the Mill site and
cannot be impacted by Mill activities It is therefore not appropnate to establish compliance
standards under the GWDP for this well EFRI has requested in the October 10, 2012 SAR that
the Director eliminate GWCLs for this well
MW-19
Nitrate + Nitnte have exceeded the GWCL for both the Q2 sampling event and the Q3 samphng
event and durmg previous quarters As mentioned above, a CAP has previously been submitted
and is undergomg public review, therefore a plan to address this consecutive exceedance is not
necessary and is not bemg subnutted
MW-24
Field pH has been shghtly outside (slightly lower than) the GWCL for both the Q2 sampling
event and the Q3 sampling event As mentioned above, site-wide pH issues and trends are
currently included m a separate study, and a plan and schedule to address this consecutive
exceedance is not necessary and is not being submitted
MW-27
• Nitrate + Nitnte have exceeded the GWCL for both the Q2 sampling event and the Q3 sampling
event and durmg previous quarters As mentioned above, a CAP has previously been submitted
and IS undergoing pubhc review, therefore a plan to address this consecutive exceedance is not
necessary and is not bemg subnutted
• Chlonde has exceeded the GWCL for both the Q2 samplmg event and the Q3 sampling event and
dunng previous quarters As mentioned above, a CAP has previously been subnutted for nitrate +
nitnte which is expected to address chlonde, therefore a plan to address this consecutive
exceedance is not necessary and is not being submitted
• TDS has exceeded the GWCL for both the Q2 samplmg event and the Q3 sampling event The
consecutive TDS exceedances noted in MW-27 were previously addressed in the SAR submitted
to DRC on October 10, 2012 An additional plan or schedule to address the Q3 exceedances is
not necessary and is not bemg submitted because the assessment processes and schedule have not
changed since the October 10, 2012 submission
MW-29
• TDS has exceeded the GWCL for both the Q2 sampling event and the Q3 samplmg event This is
the first consecutive exceedance for TDS in MW-29 Therefore, a plan and schedule for
assessment will be submitted under separate cover withm 30 days of this Exceedance Notice
CNCixsrrvas
Letter to Mr Rusty Lundberg
November 15, 2012
Page 8
2.1 Semi-annual WeUs with New Exceedances Reported in Q3
There were no new exceedances in the senu-annual wells m Q3 2012
If you have any questions or require any further mformation, please contact the undersigned
Yours tmly,
Jo Ann Tischler
Director, Compliance
cc David Frydenlund
Harold Roberts
David Turk
CHEKBYnjOS
QI 2010 Results Q2 2010 Results 03 2010 Results Q4 2011 ) Results
Monitoring
Well (Water
Class)
Constituent Exceeding
GWCL
GWCL in
August 24, 2012
GWDP
QI 2010 Sample
Date
Ql 2010
Result
Q2 2010
Sample Date
Q2 2010
Result
May 2010
Monthly
Sample Date
May 2010
Monthly
Result
June 2010
Monthly
Sample Date
June 2010
-Monthly
Result
July 2010
Monthly
Sample Date
July 2010
Monthly
Result
August 2010
Monthly
Sample Date
August 2010
Monthly Result
Q3 2010
Sample Date
Q3 2010
Result
October 2010
Monthly Sample
Date
1
October 2010
Monthly
Result
Q4 2010
Sample Date
Q4 2010
Result
December 2010
Monthly Sample
Date
December 2010
Monthly Result
Required Q uarterly Sampling Wells
MW-11 (Class
n) Manganese (ug/L) 131.29 2/10/10 134 4/28/10 137 5/24/10 122 6/16/10 99 7/20/10 123 8/25/10 138 9/8/10 128 10/20/10 141 11/11/10 133 12/15/10 158
MW-14 (Class
in)
Manganese (ug/L) 2230.30 2060
4/21/10
2070
5/21/10
NA
6/16/10
NA
7/20/10
NA
8/25/10
NA 1920 NA 1980 NA MW-14 (Class
in) Field pH (S.U.) 6.5 - 8.5
2/2/10
6.45
4/21/10
6.29
5/21/10
6..36
6/16/10
6.45
7/20/10
7.19
8/25/10
6.48
9/8/10
6.51
10/20/10
6.60
11/10/10 6.37 12/15/10 6.47
MW-25 (Class
ni)
Field pH (S.U.) 6.5 - 8.5 2/26/2010 6.53 4/28/2010 7.2 NS NA NS NA NS NA NS NA 9/8/2010 6.58 NS NA 11/10/10 6.36 NS NA MW-25 (Class
ni) Uranium 6.5 5.93 6.43 NS NA NS NA NS NA NS NA 6.57 NS NA 5.89 NS NA
MW-26 (Class
UI)
Nitrate + Nitrite (as N)
(mg/L) 0.62 1.3
4/22/10
2
5/21/10
0.3
6/16/10
0.4
7/21/10
0.6
8/16/10
0.6
9/26/10
0.7 0.4 0.2 0.4
MW-26 (Class
UI)
Uranium (ug/L) 41.8 58.7
4/22/10
66.7
5/21/10
37.4
6/16/10
36.6
7/21/10
34.4
8/16/10
71.8
9/26/10
72.7 37.5 30.4 29.6
MW-26 (Class
UI)
Chloroform (ug/L) 70 700
4/22/10
1700
5/21/10
800
6/16/10
940
7/21/10
900
8/16/10
2800
9/26/10
2100 1000 1900 1400
MW-26 (Class
UI)
Chloride (mg/L) 58.31 72
4/22/10
57
5/21/10
80
6/16/10
47
7/21/10
52
8/16/10
49
9/26/10
64 52 48 52 MW-26 (Class
UI) Field pH (S.U.) 6.74 - 8.5 2/2/10 6.59 4/22/10
7.18
5/21/10
6.36
6/16/10
6.98
7/21/10
6.4.5
8/16/10
6.39
9/26/10 6.60 10/20/10 6.6/ 11/15/10 6.49 12/15/10 6.45
MW-26 (Class
UI)
Dichloromethane
(Methylene Chloride)
(ug/L)
5 1
4/22/10
9.9
5/21/10
NR
6/16/10
2.2
7/21/10
12
8/16/10
24
9/26/10
45
10/20/10
5.5
11/15/10
16 1.2
MW-26 (Class
UI)
TDS (mg/L) 3284.19 3100
4/22/10
3280
5/21/10
NS
6/16/10
NS
7/21/10
NS
8/16/10
NS
9/26/10
3440
10/20/10
NS
11/15/10
3140 NS
MW-30 (Class
II)
Nitrate -i- Nitrite (as N)
(mg/L) 2.5 16.1
4/27/10
/5.«
5/21/10
17
6/15/10
/5.5 7/21/10 16 8/24/10 16
9/14/10
15
10/19/10
/5
11/9/10
15
12/14/10
16
MW-30 (Class
II)
Chloride (mg/L) 128 127
4/27/10
97
5/21/10
NS
6/15/10
NS NS NS NS NS
9/14/10
111
10/19/10
NS
11/9/10
126
12/14/10
NS MW-30 (Class
II) Field pH (S.U.) 6.5 - 8.5 2/9/10 6.81 4/27/10 6.55 5/21/10 6.62 6/15/10 7.47 7/21/2010 6.82 8/24/10 6.73 9/14/10 6.80 10/19/10 6.77 11/9/10 6.75 12/14/10 6.65
MW-30 (Class
II)
Uranium (ug/L) 8.32 6.82
4/27/10
6.82
5/21/10
NS
6/15/10
NS NS NS NS NS
9/14/10
7.10
10/19/10
NS
11/9/10
6.64
12/14/10
NS
Selenium (ug/L) 34 32 35.3
5/21/10
NS
6/15/10
NS 7/27/10 33.5 8/24/10 .?5.6 32.6 32.4 32.2 30.5
MW-31 (Class
ni)
Nitrate -i- Nitrite (as N)
(mg/L) 5
2/9/10
21.7
4/20/10
22.5 5/21/10 23 6/15/10 21.1 7/21/10 20 8/24/10 22
9/13/10
21 10/19/10 20
11/9/10
20
12/14/10
NS
20
MW-31 (Class
ni)
TDS (mg/L) 1320
2/9/10
1150
4/20/10
1220 NS NA NS NA NS NA NS NA
9/13/10
1330 NS NA
11/9/10
1320
12/14/10
NS
NS
MW-31 (Class
ni)
Chloride (mg/L) 143 2/9/10 128 4/20/10 128 NS NA NS NA NS NA NS NA 9/13/10 139 NS NA 11/9/10 138 12/14/10
NS
NS MW-31 (Class
ni) Selenium (ug/L) 71 2/9/10 60.8 4/20/10 59.6 NS NA NS NA NS NA NS NA 9/13/10 64.4 NS NA 11/9/10 60 12/14/10
NS
NS
MW-31 (Class
ni)
Field pH (S.U.) 6.5 - 8.5
2/9/10
6.96
4/20/10
7.38 5/21/10 6.95 6/15/10 7.01 7/21/10 7.8 8/24/10 7.1
9/13/10
7.66 10/19/10 6.92
11/9/10
6.98
12/14/10
NS
6.95
MW-31 (Class
ni)
Sulfate (mg/L) 532
2/9/10
507
4/20/10
522 NS NA NS NA NS NA NS NA
9/13/10
527 NS NA
M A
11/9/10
539
698
12/14/10
NS
NS
NA
MW-35 (Class
II)
Manganese (ug/L)
Thallium (ug/l)
200
0.5
NS
NS
NA
NA
NS
NS
NA
NA
NS
NS
NA
NA
NS
NS
NA
NA
NS
NS
NA
NA
NS
NS
NA
NA
NS
NS
NA
NA
INo
NS
IN A,
NA
11/30/10
1.14 NS NA
MW-35 (Class
II)
Gross Alpha minus Rn & U
(pCi/L) 3.75 NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA 11/30/10 2.6 NS NA MW-35 (Class
II)
Selenium (ug/L) 12.5 NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA
11/30/10
ND NS NA
MW-35 (Class
II)
Uranium (ug/L) 7.5 NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA
11/30/10
27.2 NS NA
Required Sei ni-Annuai Sampl ng Wells
MW-2 (Class
III)
Gross Alpha minus Rn & U
(pCi/L) 3.2 NS NA 1.2 NS NA NS NA NS NA NS NA NS NA NS NA 3.5 NS NA
MW-3 (Class
III)
Selenium (ug/L) 37 NS NA
5/3/10
37.2 NS NA NS NA NS NA NS NA 35.5 NS NA 38.8 NS NA
MW-3 (Class
III) Field pH (S.U.) 6.5 - 8.5 NS NA 5/3/10 6.14(6.25) NS NA NS NA NS NA NS NA 9/20/10 6.39 NS NA 11/19/10 6.35 NS NA
MW-3 (Class
III)
Fluoride (Mg/L) 0.68 NS NA
5/3/10
0.71 NS NA NS NA NS NA NS NA
9/20/10
0.63 NS NA 0.77 NS NA
MW-3A (Class
III)
Field pH (S.U.) 6.5 - 8.5 NS NA
5/4/10
6.23 (6.24) NS NA NS NA NS NA NS NA
9/21/10
6.42 NS NA 6.21 NS NA
MW-3A (Class
III) Sulfate (mg/L) 3640 NS NA 5/4/10 3680 NS NA NS NA NS NA NS NA 9/21/10 3630 NS NA 11/22/10 3850 NS NA
TDS (mg/L) 5805 NS NA
5/4/10
5860 NS NA NS NA NS NA NS NA
9/21/10
5470 NS NA 5330 NS NA
Selenium (ug/L) 89 NS NA
5/4/10
81.4 NS NA NS NA NS NA NS NA
9/21/10
NS NS NA 94.8 NS NA
MW-5 (Class
II) Uranium (ug/L) 7.5 NS NA 4/26/10 0.39 NS NA NS NA NS NA NS NA NS NA NS NA 11/11/10 11.6 NS NA
MW-12 (Class Field pH (S.U.) 6.5 - 8.5 NS NA 4/27/10 7.16 NS NA NS NA NS NA NS NA 6.62 NS NA 11 /I Q/i n 6.47 NS NA
III) Selenium (ug/L) 25 NS NA 4/27/10 25.7 NS NA NS NA NS NA NS NA 9/20/10 31.9 NS NA 1 ll lyl 1U 27.6 NS NA
MW-15 (Class Selenium (ug/L) 128.7 NS NA 4/21/10 100 NS NA NS NA NS NA NS NA NA NS NA 11/l1/10 99.5 NS NA
III) Iron (ug/L) 81.7 NS NA 4/21/10 ND NS NA NS NA NS NA NS NA NS NA NS NA ND NS NA
Thallium (ug/l) 1.95 NS NA 3.73 NS NA NS NA NS NA NS NA 3.64 NS NA 3.57 NS NA
IVI vv -1 o V^v^Iaso
III) Sulfate (mg/L) 1938.9 NS NA 5/4/10 1950 NS NA NS NA NS NA NS NA 9/15/10 1930 NS NA 11/18/10 1910 NS NA
Field pH (S.U.) 6.25-8.5 NS NA 6.2 NS NA NS NA NS NA NS NA 7.23 NS NA 6.37 NS NA
TDS (mg/L) 3198.77 NS NA 3280 NS NA NS NA NS NA NS NA 3190 NS NA 3030 NS NA
Ql 2010 Results Q2 2010 Results Q3 2010 Results Q4 2010 Results
.Monitoring
Well (Water
Class)
Constituent Exceeding
GWCL
GWCL in
Current GWDP Ql Sample Date Ql Result Q2 Sample
Date Q2 Result .May Monthly
Sample Date
-May
Monthly
Result
June .VIonthly
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
Re quired Semi-.4n nual Sampling W ells, continued
•— -• ' " MW-19 (Class
m)
Field pH (S.U.) 6.78-8.5 NS NA
5/4/10
6.6/ (6.66) NS NA NS NA NS NA NS NA
9/15/10
6.93 NS NA
11/18/10
6.8 NS NA MW-19 (Class
m) Nitrate + Nitrite (as N)
(m^/L) 2.83 NS NA
5/4/10
2.6 NS NA NS NA NS NA NS NA
9/15/10
NS NA NA
11/18/10
2.4 NS NA
MW-23 (Class
in)
Field pH (S.U.) 6.5 - 8.5 NS NA 4/22/10 6.18 NS NA NS NA NS NA NS NA 9/14/10 7.05 NS NA 11/22/10
6.44 NS NA MW-23 (Class
in) Manganese (ug/L) 550 NS NA
4/22/10
184 NS NA NS NA NS NA NS NA
9/14/10
NS NS NA
11/22/10
65 NS NA
MW-24 (Class
III)
Cadmium (ug/L) 2.5 NS NA
5/6/10
4.28 NS NA NS NA NS NA NS NA
9/21/10
.5.06 NS NA
11/17/10
,?.22 NS NA
MW-24 (Class
III) Thallium (ug/L) 1 NS NA 5/6/10 1.3 NS NA NS NA NS NA NS NA 9/21/10 /.57 NS NA 11/17/10 1.09 NS NA MW-24 (Class
III)
Field pH (S.U.) 6.5 - 8.5 NS NA
5/6/10
5.91 (5.78) NS NA NS NA NS NA NS NA
9/21/10
6.64 NS NA
11/17/10
6.1 NS NA
MW-27 (Class
III)
Nitrate + Nitrite (as N)
(mg/L) 5.6 NS NA
5/3/10
5.8 NS NA NS NA NS NA NS NA
9/14/10
5.9 NS NA
11/12/10
5.7 NS NA
MW-27 (Class
III)
Chloride (mg/L) 38 NS NA
5/3/10
42 NS NA NS NA NS NA NS NA
9/14/10
42 NS NA
11/12/10
45 NS NA
MW-27 (Class
III)
Sulfate (mg/L) 462 NS NA
5/3/10
469 NS NA NS NA NS NA NS NA
9/14/10
461 NS NA
11/12/10
452 NS NA MW-27 (Class
III) Field pH (S.U.) 6.5-8.5 NS NA 5/3/10 6.78 NS NA NS NA NS NA NS NA 9/14/10 7.68 NS NA 11/12/10 6.89 NS NA
MW-27 (Class
III)
TDS (mg/L) 1075 NS NA
5/3/10
1160 NS NA NS NA NS NA NS NA
9/14/10
1060 NS NA
11/12/10
1110 NS NA
MW-27 (Class
III)
Gross Alpha minus Rn & U
(pCi/L) 2 NS NA
5/3/10
1.6 NS NA NS NA NS NA NS NA
9/14/10
NA NS NA
11/12/10
2.4 NS NA
MW-28 (Class
III)
Chloride (mg/L) 105 NS NA
4/19/10
108 NS NA NS NA NS NA NS NA
9/14/10
106 NS NA
11/12/10
107 NS NA
MW-28 (Class
III)
Manganese (ug/L) 1837 NS NA
4/19/10 1550 NS NA NS NA NS NA NS NA 9/14/10 NA NS NA 11/12/10 1510 NS NA MW-28 (Class
III)
Field pH (S.U.) 6.1 -8.5 NS NA
4/19/10
5.67 NS NA NS NA NS NA NS NA
9/14/10
.5.9/ NS NA
11/12/10
5.72 NS NA
MW-29 (Class
III)
Iron (ug/L) 1869 NS NA
4/27/10
1630 NS NA NS NA NS NA NS NA
NS NA
NS NA 1490 NS NA
MW-29 (Class
III)
Manganese (ug/L) 5624 NS NA
4/27/10
4820 NS NA NS NA NS NA NS NA
NS NA
NS NA 4890 NS NA
MW-29 (Class
III) TDS (mg/L.) 4400 NS NA 4/27/10 4400 NS NA NS NA NS NA NS NA NS NA NS NA 11/9/10 4390 NS NA MW-29 (Class
III)
Field pH (S.U.) 6.46 - 8.5 NS NA
4/27/10
6.82 NS NA NS NA NS NA NS NA
NS NA
NS NA 6./7 NS NA
MW-32 (Class
ni)
Gross Alpha minus Rn & U
(pCi/L) 3.33 NS NA
4/20/10
4.5 NS NA NS NA NS NA NS NA
9/13/10
2.9 NS NA
11/10/10
8.8 NS NA MW-32 (Class
ni)
Field pH (S.U.) 6.4 - 8.5 NS NA
4/20/10
6.03 NS NA NS NA NS NA NS NA 6.33 NS NA
11/10/10
6.05 NS NA
Notes:
GWCL values are taken from February 15. 2011 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 October 26. 2011 DRC letter gross alpha monitoring in MW-26 returned to the routine frquency of quarterly. Tliese samples were inadvertantly collected and are tor information only.
Ql 2011 Results Q2 2011 Results Q3 2011 Results Q4 2011 Results
Monitoring
Well (Water
Class)
Constituent Exceeding
GWCL
GWCL in
August 24,
2012 GWDP
January 2011
Monthly
Sample Date
January 2011
Monthly Sample
Result
Ql 2011
Sample
Date
Ql 2011
Result
March 2011
Monthly
Sample Date
March
2011
Monthly
Result
Q2 2011
Sample
Date
Q2 2011
Result
May 2011
Monthly
Sample Date
May 2011
Monthly
Result
June 2011
Monthly
Sample Date
June 2011
Monthly
Result
July 2011
Monthly
Sample Date
July 2011
Monthly
Result
Q3 2011
Sample
Date
Q3 2011
Result
September
2011
Monthly
Sample Date
September
2011 Monthly
Result
Q4 2011
Sample Date
Q42011
Result
November
2011 Monthly
Sample Date
November
2011 Monthly
Result
December
2011 Monthly
Sample Date
December
2011
Monthly
Result
Re quired Quarterly Sampling Wells
MW-11
(Class n) Manganese (ug/L) 131.29 1/11/11 121 2/2/11 /45 3/15/11 68 4/4/2011 148 5/10/2011 170 6/15/2011 121 7/6/2011 /5/ 8/3/2011
8/30/11 118 9/7/2011 106 10/4/2011 112 11/9/2011 105 12/14/2011 100
MW-14
(Class HI)
Manganese (ug/L) 2230.30
1/11/11
NA
2/7/11
2020
3/14/11
NA
4/4/2011
2140
5/10/2011
NA
6/15/2011
NA
7/5/2011
NA
8/3/2011
1990 NA 1960 NA NA MW-14
(Class HI) Field pH (S.U.) 6.5 - 8.5
1/11/11
6.37
2/7/11
6.22
3/14/11
6.76
4/4/2011
6.63
5/10/2011
6.37
6/15/2011
.5.«3
7/5/2011
6.4
8/3/2011 6.23
(6.4/>
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 m)
Field pH (S.U.) 6.5 - 8.5 1/11/11 6.44 2/2/11 6.66 3/15/11 6.79 4/4/2011 6.7 5/11/2011 6.1 6/20/2011 5.77 7/6/2011 6.29 8/3/2011
8/30/11
6.42
(6.54) 9/7/2011 6.54 10/4/2011 6.6 11/9/2011 6.51 1212/2011 6.87 MW-25
(Class m) Uranium 6.5
1/11/11
7.02
2/2/11
4.77
3/15/11
6.8
4/4/2011
5.56
5/11/2011
6.72
6/20/2011
7.06
7/6/2011
6.74 8/3/2011 6.37
9/7/2011
5.96
10/4/2011
5.27 6.56 6.1
MW-26
(Class ffl)
Nitrate + Nitrite (as N)
(mg/L) 0.62
1/12/11
0.2
2/16/11
0.25
3/15/11
0.6
4/1/2011
0.8
5/10/2011
0.4
6/20/2011
0.3
7/6/2011
0.9
8/3/2011
8/30/11
0.6
9/7/2011
2.4
10/12/2011
0.9 1.3 2.3
MW-26
(Class ffl)
Uranium (ug/L) 41.8
1/12/11
32
2/16/11
69.3
3/15/11
31.8
4/1/2011
60.2
5/10/2011
57.4
6/20/2011
18.5
7/6/2011
57./
8/3/2011
8/30/11
19.0
9/7/2011
.56./
10/12/2011
58.9 55.6 57
MW-26
(Class ffl)
Chloroform (ug/L) 70
1/12/11
800
2/16/11
730
3/15/11
1200
4/1/2011
390
5/10/2011
1900
6/20/2011
730
7/6/2011
300
8/3/2011
8/30/11
1000
9/7/2011
1300
10/12/2011
440 1200
12/14/2011
1400
MW-26
(Class ffl)
Chloride (mg/L) 58.31
1/12/11
52
2/16/11
59
3/15/11
64
4/1/2011
64
5/10/2011
54
6/20/2011
39
7/6/2011
64 8/3/2011
8/30/11
60
9/7/2011
66
10/12/2011
61
11/9/2011
55
12/14/2011
62 MW-26
(Class ffl) Field pH (S.U.) 6.74 - 8.5
1/12/11
6.83 2/16/11
6.06
3/15/11
6.89
4/1/2011
6.22
5/10/2011
6.43
6/20/2011
6.52
7/6/2011
6.35
8/3/2011
8/30/11 6.07
(6.58)
9/7/2011 6.71 10/12/2011 6.82
11/9/2011
6.75
12/14/2011
7.1
MW-26
(Class ffl)
Dichloromethane
(Methylene Chloride)
(ug/L)
1/12/11
<1.0
2/16/11
10
3/15/11
14
4/1/2011
3.1
5/10/2011
20
6/20/2011
7
7/6/2011
2.4
8/3/2011
8/30/11
10
9/7/2011
7.9
10/12/2011
2.6
11/9/2011
8.9
12/14/2011
//
MW-26
(Class ffl)
TDS (mg/L) 3284.19
1/12/11
3100
2/16/11
3270
3/15/11
3140
4/1/2011
3310
5/10/2011
3140
6/20/2011
3020
7/6/2011
3270
8/3/2011
8/30/11
3190
9/7/2011
3200
10/12/2011
3190
11/9/2011
3220
12/14/2011
3160
MW-30
(Class U)
Nitrate + Nitrite (as N)
(mg/L) 2.5
1/10/11
/5
2/I/II
16
3/14/11
17
4/11/2011
16
5/10/2011
16
6/20/2011
17
7/5/2011
17
8/3/2011
14
9/7/2011
16
10/4/2011
16
11/8/2011
16
12/12/2011
16
MW-30
(Class U)
Chloride (mg/L) 128
1/10/11
NS
2/I/II
134
3/14/11
NS
4/11/2011
134
5/10/2011
128
6/20/2011
127
7/5/2011
127
8/3/2011
126
9/7/2011
145
10/4/2011
129
11/8/2011
122
12/12/2011
124 MW-30
(Class U) Field pH (S.U.) 6.5 - 8.5 1/10/11 6.65 2/I/II 6.96 3/14/11 7.10 4/11/2011 6.83 5/10/2011 6.7 6/20/2011 5.66 7/5/2011 6.65 8/3/2011 6.61 9/7/2011 6.80 10/4/2011 6.96 (6.73) 11/8/2011 6.83 12/12/2011 7.14
MW-30
(Class U)
Uranium (ug/L) 8.32
1/10/11
NS
2/I/II
5.97
3/14/11
NS
4/11/2011
6.49
5/10/2011
NS
6/20/2011
NS
7/5/2011
NS
8/3/2011
8
9/7/2011
NS
10/4/2011
9.«3
11/8/2011
NS
12/12/2011
NS
MW-30
(Class U)
Selenium (ug/L) 34
1/10/11
36.2
2/I/II
34.7
3/14/11
34
4/11/2011
44.4
5/10/2011
3«.3
6/20/2011
3«.7
7/5/2011
32.4
8/3/2011
39.7
9/7/2011
32.4
10/4/2011
36.6
11/8/2011
36.«
12/12/2011
3S
MW-31
(Class ni)
Nitrate + Nitrite (as N)
(mg/L) 5
1/10/11
19
2/1/11
21
3/14/11
22
4/1/2011
21
5/10/2011
20
6/20/2011
22
7/5/2011
22
8/2/2011
20
9/6/2011
21
10/3/2011
21
11/8/2011
21
12/12/2011
21
MW-31
(Class ni)
TDS (mg/L) 1320
1/10/11
1240
2/1/11
1220
3/14/11
1250
4/1/2011
1370
5/10/2011
1290
6/20/2011
1330
7/5/2011
1280
8/2/2011
1300
9/6/2011
1300
10/3/2011
1320
11/8/2011
1290
12/12/2011
1330
MW-31
(Class ni)
Chloride (mg/L) 143 1/10/11 NS 2/1/11 145 3/14/11 NS 4/1/2011 143 5/10/2011 143 6/20/2011 145 7/5/2011 148 8/2/2011 148 9/6/2011 148 10/3/2011 /45 11/8/2011 /45 12/12/2011 148 MW-31
(Class ni) Selenium (ug/L) 71 1/10/11 NS 2/1/11 64.6 3/14/11 NS 4/1/2011 65.2 5/10/2011 NS 6/20/2011 NS 7/5/2011 NS 8/2/2011 66.2 9/6/2011 NS 10/3/2011 68.8 11/8/2011 NS 12/12/2011 NS
MW-31
(Class ni)
Field pH (S.U.) 6.5 - 8.5
1/10/11
6.65
2/1/11
7.21
3/14/11
7.43
4/1/2011
7.01
5/10/2011
6.73
6/20/2011
6./6
7/5/2011
6.64
8/2/2011
6.67
9/6/2011
7.03
10/3/2011
7.28 (7.34)
11/8/2011
7.01
12/12/2011
7.46
MW-31
(Class ni)
Sulfate (mg/L) 532
1/10/11
NS
2/1/11
538
3/14/11
531
4/1/2011
503
5/10/2011
512
6/20/2011
540
7/5/2011
532
8/2/2011
537
9/6/2011
54/
10/3/2011
539
11/8/2011
552
12/12/2011
530
MW-35
(Class II)
Manganese (ug/L) 200 NS NA
2/15/11
248 NS NA
6/7/2011
369 NS NA NS NA 348
8/30/2011
267
9/7/11
270
10/3/11
27/
11/8/2011
2«3
12/14/11
247
MW-35
(Class II)
Thallium (ug/l) 0.5 NS NA
2/15/11
<0.50 NS NA
6/7/2011
<0.50 NS NA NS NA
7/20/11
NS
8/30/2011
0.52
9/7/11
NS
10/3/11
0.57
11/8/2011
<0.50
12/14/11
0.63
MW-35
(Class II)
Gross Alpha minus Rn
& U (pCi/L) 3.75 NS NA 2/15/11 2.6 NS NA 6/7/2011 3.7 NS NA NS NA 7/20/11 NS 8/30/2011 4.5 9/7/11 NS 10/3/11 4.4 11/8/2011 4.7 12/14/11 4.2 MW-35
(Class II)
Selenium (ug/L) 12.5 NS NA
2/15/11
ND NS NA
6/7/2011
ND NS NA NS NA
7/20/11
NA
8/30/2011
9.3
9/7/11
NA
10/3/11
10.5
11/8/2011
NA
12/14/11
NA
MW-35
(Class II)
Uranium (ug/L) 7.5 NS NA
2/15/11
/2.7 NS NA
6/7/2011
21.7 NS NA NS NA
7/20/11
24.2
8/30/2011
18.3
9/7/11
22.3
10/3/11
20.1
11/8/2011
24
12/14/11
23.6
Req uired Semi-A nnual Sampli ng Wells
MW-2 (Class
in)
Gross Alpha minus Rn
& U (pCi/L) 3.2 NS NA Ll NS NA 4/12/2011 1.2 NS NA NS NA NS NA 8/8/2011 0.5 NS NA 10/5/2011 1.3 NS NA NS NA
MW-3 (Class
III)
Selenium (ug/L) 37 NS NA
2/15/11
40.5 NS NA
4/13/2011
45.4 NS NA NS NA NS NA
8/10/2011
46 NS NA
10/10/2011
46.7 NS NA NS NA MW-3 (Class
III) Field pH (S.U.) 6.5 - 8.5 - NS NA 2/15/11 6.09 NS NA 4/13/2011 6.46 NS NA NS NA NS NA 8/10/2011 6.32 NS NA 10/10/2011 6.53 (6.83) NS NA NS NA
MW-3 (Class
III)
Fluoride (Mg/L) 0.68 NS NA
2/15/11
0.69 NS NA
4/13/2011
0.68 NS NA NS NA NS NA
8/10/2011
0.96 NS NA
10/10/2011
0.9/ NS NA NS NA
MW-3A
(Class ni)
Field pH (S.U.) 6.5 - 8.5 NS NA
2/16/11
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
MW-3A
(Class ni) Sulfate (mg/L) 3640 NS NA 2/16/11 3730 NS NA 4/13/2011 3350 NS NA NS NA NS NA 8/11/2011 3560 NS NA 10/11/2011 3750 NS NA NS NA
MW-3A
(Class ni)
TDS (mg/L) 5805 NS NA
2/16/11
5770 NS NA
4/13/2011
5720 NS NA NS NA NS NA
8/11/2011
5810 NS NA
10/11/2011
5630 NS NA NS NA
MW-3A
(Class ni)
Selenium (ug/L) 89 NS NA
2/16/11
99 NS NA
4/13/2011
85.8 NS NA NS NA NS NA
8/11/2011
88.5 NS NA
10/11/2011
95 NS NA NS NA
MW-5 (Class
II) Uranium (ug/L) 7.5 NS NA 2/14/11 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 IH)
Field pH (S.U.) 6.5 - 8.5 NS NA 2/15/11 6.43 NS NA 4/5/2011 6.67 NS NA NS NA NS NA 8/9/2011 6./3 NS NA tni/i/'-irit 1 6.7 (6.97) NS NA NS NA MW-12
(Class IH) Selenium (ug/L) 25 NS NA 2/15/11 39 NS NA 4/5/2011 21.7 NS NA NS NA NS NA 8/9/2011 2.5.4 NS NA 10/6/2011 35.4 NS NA NS NA
MW-I5
(Class m)
Selenium (ug/L) 128.7 NS NA NS NA NS NA 4/12/2011 116 NS NA NS NA NS NA NS NA NS NA 1A /1 n/or\ 11 112 NS NA NS NA MW-I5
(Class m) Iron (ug/L) 81.7 NS NA NS NA NS NA 4/12/2011 <0.50 NS NA NS NA NS NA NS NA NS NA 1U/1U//U11 /37 NS NA NS NA
MW-18
(Class ni)
Thallium (ug/l) 1.95 NS NA
2/15/11
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 NS NA 3.«3 NS NA NS NA
MW-18
(Class ni) Sulfate (mg/L) 1938.9 NS NA 2/15/11 1770 NS NA 4/6/2011 1780 NS NA NS NA NS NA 8/10/2011
9/21/11
1910 NS NA 10/11/2011 2020 NS NA NS NA MW-18
(Class ni)
Field pH (S.U.) 6.25-8.5 NS NA 6.27 NS NA
4/6/2011
6.71 NS NA NS NA NS NA
8/10/2011
9/21/11 5.95 NS NA 6.55 (6.63) NS NA NS NA
MW-18
(Class ni)
TDS (mg/L) 3198.77 NS NA 3250 NS NA
4/6/2011
32.50 NS NA NS NA NS NA
8/10/2011
9/21/11
3190 NS NA .?220 NS NA NS NA
Ql 2011 Results 02 2011 Results Q3 20H 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
Ql 2011
Sample
Date
Ql 2011
Result
March 2011
Monthly
Sample Date
March
2011
Monthly
Result
Q2 2011
Sample
Date
Q2 2011
Result
May 2011
Monthly
Sample Date
May 2011
Monthly
Result
June 2011
Monthly
Sample Date
June 2011
Monthly
Result
July 2011
Monthly
Sample Date
July 2011
Monthly
Result
Q3 2011
Sample
Date
Q3 2011
Result
September
2011
Monthly
Sample Date
September
2011 Monthly
Result
Q4 2011
Sample Date
Q4 2011
Result
November
2011 Monthly
Sample Date
November
2011 Monthly
Result
December
2011 Monthly
Sample Date
December
2011
Monthly
Result
Required Semi-Annua! Sampling Wi ills, continue d
MW-19
(Class IH)
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 MW-19
(Class IH) Nitrate + Nitrite (as N)
(mg/L) 2.83 NS NA
2/21/2011
NS NS NA
4/5/2011
2.6 NS NA NS NA NS NA
7/20/3011
NS NS NA
10/12/2011
4.0 NS NA NS NA
MW-23
(Class III)
Field pH (S.U.) 6.5 - 8.5 NS NA 2/9/2011 6./3 NS NA 4/5/2011 7.14 NS NA NS NA NS NA 8/4/2011 6.3« NS NA 10/6/2011 6.56 (6.77) NS NA NS NA MW-23
(Class III) Manganese (ug/L) 550 NS NA 2/9/2011
NS NS NA
4/5/2011
32 NS NA NS NA NS NA
8/4/2011
NS NS NA
10/6/2011
.55/ NS NA NS NA
MW-24
(Class IU)
Cadmium (ug/L) 2.5 NS NA
2/10/2011
2.78 NS NA
4/5/2011
2.61 NS NA NS NA NS NA
8/4/2011
1.46 NS NA
10/11/2011
1.78 NS NA NS NA MW-24
(Class IU) Thallium (ug/L) 1 NS NA 2/10/2011 1.42 NS NA 4/5/2011 1.07 NS NA NS NA NS NA 8/4/2011 <0.50 NS NA 10/11/2011 0.62 NS NA NS NA MW-24
(Class IU)
Field pH (S.U.) 6.5 - 8.5 NS NA
2/10/2011
5.73 NS NA
4/5/2011
6.12 NS NA NS NA NS NA
8/4/2011
6.45 NS NA
10/11/2011
6.44 NS NA NS NA
MW-27
(Class UI)
Nitrate -i- Nitrite (as N)
(mg/L) 5.6 NS NA
2/9/2011
6 NS NA
4/5/2011
6.4 NS NA NS NA NS NA
8/8/2011
6 NS NA
10/5/2011
6.3 NS NA NS NA
MW-27
(Class UI)
Chloride (mg/L) 38 NS NA
2/9/2011
46 NS NA
4/5/2011
43 NS NA NS NA NS NA
8/8/2011
43 NS NA
10/5/2011
44 NS NA NS NA
MW-27
(Class UI)
Sulfate (mg/L) 462 NS NA
2/9/2011
455 NS NA
4/5/2011
442 NS NA NS NA NS NA
8/8/2011
424 NS NA
10/5/2011
456 NS NA NS NA MW-27
(Class UI) Field pH (S.U.) 6.5-8.5 NS NA 2/9/2011 6.71 NS NA 4/5/2011 6.79 NS NA NS NA NS NA 8/8/2011 6.39 NS NA 10/5/2011 7.17 (7.24) NS NA NS NA
MW-27
(Class UI)
TDS (mg/L) 1075 NS NA
2/9/2011
1090 NS NA
4/5/2011
1190 NS NA NS NA NS NA
8/8/2011
1090 NS NA
10/5/2011
1110 NS NA NS NA
MW-27
(Class UI)
Gross Alpha minus Rn
& U (pCi/L) 2 NS NA
2/9/2011
0.7 NS NA
4/5/2011
1.1 NS NA NS NA NS NA
8/8/2011
0.8 NS NA
10/5/2011
1.5 NS NA NS NA
MW-28
(Class IU)
Chloride (mg/L) 105 NS NA
2/14/2011
114 NS NA
4/11/2011
109 NS NA NS NA NS NA
8/8/2011
105 NS NA
10/5/2011
/43 NS NA NS NA
MW-28
(Class IU)
Manganese (ug/L) 18.37 NS NA 2/14/2011 NA NS NA 4/11/2011 1690 NS NA NS NA NS NA 8/8/2011 NA NS NA 10/5/2011
1540 NS NA NS NA MW-28
(Class IU)
Field pH (S.U.) 6.1 -8.5 NS NA
2/14/2011
5.69 NS NA
4/11/2011
6.0/ NS NA NS NA NS NA
8/8/2011
5.7S NS NA
10/5/2011
6.07(6.11) NS NA NS NA
MW-29
(Class UI)
Iron (ug/L) 1869 NS NA NS NA NS NA
4/18/2011
3010 NS NA NS NA NS NA
8/9/2011
1080 NS NA 1220 NS NA NS NA
MW-29
(Class UI)
Manganese (ug/L) 5624 NS NA NS NA NS NA
4/18/2011
4900 NS NA NS NA NS NA
8/9/2011
NA NS NA 4800 NS NA NS NA
MW-29
(Class UI) TDS (mg/L) 4400 NS 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 MW-29
(Class UI)
Field pH (S.U.) 6.46 - 8.5 NS NA NS NA NS NA
4/18/2011
6.45 NS NA NS NA NS NA
8/9/2011
6.20 NS NA 6.52 NS NA NS NA
MW-32
(Class UI)
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 MW-32
(Class UI)
Field pH (S.U.) 6.4 - 8.5 NS NA
2/9/2011
5.99 NS NA
4/1/2011
6.14 NS NA NS NA NS NA
8/2/2011
8/30/11 6.10
(6.20) NS NA
10/3/2011
6.35 NS NA NS NA
Notes:
GWCL values are taken from July 14, 2011 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 October 26. 2011 DRC letter gross alpha monitoring in MW-26 return*
information only.
liese samples were inadvertantly collected and are
Ql 2012 Results Q2 2012 Results Q3 2012 Results
Monitoring Well
(Water Class)
Constituent
Exceeding GWCL
GWCL in August
24,2012 GWDP
January 2012
Monthly Sample
Date
January 2012
Monthly Result
Ql 2012 Sample
Date Ql 2012 Result
March 2012
Monthly Sample
Date
March 2012
Monthly Result
April 2012
Monthly
Sample Date
April 2012 Monthly
Result
Q2 2012
Sample Date
Q2 2012
Result
June 2012
Monthly
Sample Date
June 2012
Monthly
Result
Q3 2012
Sample Date
Q3 2012
Result
August
2012
Monthly
Sample
August
2012
Monthly
Result
September
2012
Monthly
Sample
September
2012
Monthly
Result
Sample
Frequency
, , Required Quarterly Sampling Wells
MW-11 (Class U) Manganese (ug/L) 131.29 1/26/2012 102 2/13/2012 /54 3/13/2012 121 4/10/2012 /32 5/8/2012 127 6/19/2012 122 7/11/2012 /.?5 8/7/2012 /66 9/19/2012 130 Quarterly
MW-14 (Class III)
Manganese (ug/L) 2230.30
1/24/2012
NA
2/21/2012
1790
3/14/2012
NA
4/12/2012
NA
5/9/2012
2360
6/19/2012
NA
7/11/2012
2100 2300 2140 Quarterly
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 Quarterly
MW-25 (Class III) Field pH (S.U.) 6.5 - 8.5 1/25/2012 6.63 2/14/2012 6.83 3/14/2012 6.55 4/9/2012 6.58 5/2/2012 6.73 6/18/2012 6.99 7/10/2012 6.88 8/6/2012 6.55 9/18/2012 6.54 Quarterly MW-25 (Class III)
Uranium 6.5
1/25/2012
6.6
2/14/2012
6.5
3/14/2012
6.93
4/9/2012
6..52
5/2/2012
5.90
6/18/2012
7.6
7/10/2012
6.45
8/6/2012
6.72 6.01 Quarterly
MW-26 (Class III)
Nitrate + Nitrite (as
N) (mg/L) 0.62
1/25/2012
1.9 2/15/2012 1.2
3/14/2012
3
4/11/2012
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 Quarterly
MW-26 (Class III)
Uranium (ug/L) 41.8
1/25/2012
64.6 2/21/2012 59.4
3/14/2012
31.2
4/11/2012
42.2
5/7/2012
6/26/2012
18.2
6/19/2012
66.0
7/11/2012
28.4
8/8/2012
67.4
9/19/2012
64.9 Quarterly
MW-26 (Class III)
Chloroform (ug/L) 70
1/25/2012
1900 2/15/2012 3300
3/14/2012
2900
4/11/2012
2900
5/7/2012
6/26/2012
1700
6/19/2012
2400 8/16/2012 970
8/8/2012
2200
9/19/2012
2300 Quarterly
MW-26 (Class III)
Chloride (mg/L) 58.31
1/25/2012
68 2/15/2012 40
3/14/2012
74
4/11/2012
82 5/7/2012
6/26/2012
74
6/19/2012
«5 7/11/2012 78
8/8/2012
78
9/19/2012
67 Quarterly
MW-26 (Class III)
Field pH (S.U.) 6.74 - 8.5 1/25/2012
6.59 2/15/2012 2/21/2012
3/8/2012 6.72 (6.9l)(6.7/> 3/14/2012
6.39
4/11/2012
6.88
5/7/2012
6/26/2012 7.00 (7.01)
6/19/2012
7.00 7/11/2012
8/16/2012
7.10
(6.80)
8/8/2012 6.60
9/19/2012
7.40 Quarterly
MW-26 (Class III)
Dichloromethane
(Methylene Chloride)
(ug/L)
5
1/25/2012
13 2/15/2012 24
3/14/2012
27
4/11/2012
20
5/7/2012
6/26/2012
10
6/19/2012
16 8/16/2012 4.9
8/8/2012
17
9/19/2012
9.8 Quarterly
MW-26 (Class III)
TDS (mg/L) .3284.19
1/25/2012
3250
2/15/2012
3150
3/14/2012
3220
4/11/2012
3140
5/7/2012
6/26/2012
3240
6/19/2012
3200 7/11/2012 3060
8/8/2012
3210
9/19/2012
NS Quarterly
MW-30 (Class II)
Nitrate + Nitrite (as
N) (mg/L) 2.5
1/24/2012
17
2/14/2012
17
3/14/2012
18
4/I0/20I2
17
5/2/2012
16
6/18/2012
/5
7/10/2012
17
8/7/2012
18
9/19/2012
16 Quarterly
MW-30 (Class II)
Chloride (mg/L) 128 1/24/2012 124
2/14/2012
126
3/14/2012
128
4/I0/20I2
128
5/2/2012
124
6/18/2012
131
7/10/2012
128
8/7/2012
139
9/19/2012
130 Quarterly
MW-30 (Class II) Field pH (S.U.) 6.5 - 8.5
1/24/2012
6.52 2/14/2012 7.12 3/14/2012 6.86 4/I0/20I2 7.66 5/2/2012 6.95 6/18/2012 7.10 7/10/2012 7.25 8/7/2012 6.95 9/19/2012 7.85 Quarterly MW-30 (Class II)
Uranium (ug/L) 8.32 NS NA
2/14/2012
7.42
3/14/2012
8.38
4/I0/20I2
7.84
5/2/2012
6.81
6/18/2012
7.8
7/10/2012
7.64
8/7/2012
8.04
9/19/2012
7.67 Quarterly
MW-30 (Class II)
Selenium (ug/L) 34 1/24/2012 33.3
2/14/2012
35
3/14/2012
39.5
4/I0/20I2
39./
5/2/2012
32.3
6/18/2012
37
7/10/2012
38.5
8/7/2012
3«.4
9/19/2012
4/.9 Quarterly
MW-31 (Class UI)
Nitrate -i- Nitrite (as
N) (mg/L) 5
1/24/2012
21
2/13/2012
21
3/13/2012
22
4/9/2012
21
5/2/2012
20
6/18/2012
6/29/2012
2/.6
7/9/2012
21
8/6/2012
21
9/18/2012
21 Quarterly
MW-31 (Class UI)
TDS (mg/L) 1320
1/24/2012
1360
2/13/2012
1240
3/13/2012
1400
4/9/2012
1380
5/2/2012
1410
6/18/2012
6/29/2012
1460
7/9/2012
1400
8/6/2012
1400
9/18/2012
1460 Quarterly
MW-31 (Class UI) Chloride (mg/L) 143 1/24/2012 155 2/13/2012 /.50 3/13/2012 152 4/9/2012 160 5/2/2012 151 6/18/2012
6/29/2012
138 7/9/2012 161 8/6/2012 175 9/18/2012 172 Quarterly MW-31 (Class UI) Selenium (ug/L) 71 1/24/2012 NS 2/13/2012 67.8 3/13/2012 NS 4/9/2012 NS 5/2/2012 70.2
6/18/2012
6/29/2012 NS 7/9/2012 74 8/6/2012 NS 9/18/2012 NS Quarterly MW-31 (Class UI)
Field pH (S.U.) 6.5 - 8.5
1/24/2012
6.78
2/13/2012
7.37
3/13/2012
7.13
4/9/2012
7.14
5/2/2012
7.19
6/18/2012
6/29/2012
7.28
7.63
7/9/2012
7.53
8/6/2012
6.96
9/18/2012
7.10 Quarterly
MW-31 (Class UI)
Sulfate (mg/L) 5.32
1/24/2012
.539
2/13/2012
538
3/13/2012
517
4/9/2012
547
5/2/2012
532
6/18/2012
6/29/2012
497
7/9/2012
529
8/6/2012
57/
9/18/2012
.56/ Quarterly
MW-35 (Class II)
Manganese (ug/L) 200
1/24/2012
264
2/14/12
253
3/13/12
269
4/10/2012
277
5/2/2012
25«
6/19/2012
304
7/10/2012
272
8/8/2012
273
9/19/2012
283 Quarterly
MW-35 (Class II)
Thallium (ug/l) 0.5
1/24/2012
<0.50
2/14/12
0.65
3/13/12
0.71
4/10/2012
0.59
5/2/2012
0.66
6/19/2012
<0.50
7/10/2012
0.57
8/8/2012
0.6/
9/19/2012
0.54 Quarterly
MW-35 (Class II) Gross Alpha minus
Rn & U (pCi/L) 3.75
1/24/2012
6.5 2/14/12 4.1
3/13/12
6.2 4/10/2012 4.1 5/2/2012 4.5 6/19/2012 4.9 7/10/2012 3.5 8/8/2012 4.2 9/19/2012 5.4 Quarterly MW-35 (Class II)
Selenium (ug/L) 12.5 NS NA
2/14/12
19.7 NS NA
4/10/2012
NS
5/2/2012
11.4
6/19/2012
7.0
7/10/2012
/5.9
8/8/2012
18.8
9/19/2012
8.2 Quarterly
MW-35 (Class II)
Uranium (ug/L) 7.5 1/24/2012 16.1
2/14/12
24.7 3/13/12 24.9
4/10/2012
22.4
5/2/2012
22.2
6/19/2012
22.5
7/10/2012
24.5
8/8/2012
26.2
9/19/2012
22.9 Quarterly
Ret [uired Semi-Annu al Sampling Well s
MW-2 (Class IU) Gross Alpha minus
Rn & U (pCi/L) 3.2 NS NA 2/22/2012 0.6 NS NA NS NA 5/9/2012 0.6 NS NA 7/16/2012 0.9 NS NA NS NA Semi-Annually
MW-3 (Class UI)
Selenium (ug/L) 37 NS NA
2/29/2012
43./ NS NA NS NA
5/14/2012
52.« NS NA
7/18/2012
51.1 NS NA NS NA Semi-Annually
MW-3 (Class UI) Field pH (S.U.) 6.5 - 8.5 NS NA 2/29/2012 6.63 NS NA NS NA 5/14/2012 6.67 NS NA 7/18/2012 6.99 NS NA NS NA Semi-Annually MW-3 (Class UI)
Fluoride (Mg/L) 0.68 NS NA
2/29/2012
0.86 NS NA NS NA
5/14/2012
1.04 NS NA
7/18/2012
0.96 NS NA NS NA Semi-Annually
MW-3A (Class IU)
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 Semi-Annually
MW-3A (Class IU) Sulfate (mg/L) 3640 NS NA 3/1/2012 3020 NS NA NS NA 5/15/2012 3220 NS NA 7/19/2012 3700 NS NA NS NA Semi-Annually MW-3A (Class IU)
TDS (mg/L) 5805 NS NA
3/1/2012
5690 NS NA NS NA
5/15/2012
5730 NS NA
7/19/2012
5720 NS NA NS NA Semi-Annually
MW-3A (Class IU)
Selenium (ug/L) 89 NS NA
3/1/2012
65.8 NS NA NS NA
5/15/2012
85.1 NS NA
7/19/2012
99.3 NS NA NS NA Semi-Annually
MW-5 (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 Semi-Annually
MW-12 (Class IU) Field pH (S.U.) 6.5 - 8.5 NS NA 2/29/2012 6.81 NS NA NS NA 5/10/2012 6.91 NS NA 7/17/2012 6.98 NS NA NS NA Semi-Annually MW-12 (Class IU) Selenium (ug/L) 25 NS NA 2/29/2012 27.2 NS NA NS NA 5/10/2012 19.6 NS NA 7/17/2012 20.7 NS NA NS NA Semi-Annually
MW-15 (Class III) Selenium (ug/L) 128.7 NS NA 2/22/2012 NA NS NA NS NA 5/9/2012 /52 NS NA 7/17/2012 120 NS NA NS NA Semi-Annually MW-15 (Class III) Iron (ug/L) 81.7 NS NA 2/22/2012 <30 NS NA NS NA 5/9/2012 <30 NS NA 7/17/2012 <30 NS NA NS NA Semi-Annually
Thallium (ug/l) 1.95 NS NA
2/27/2012
3.63 NS NA NS NA
4/30/2012
3.5/ NS NA
7/18/2012
3.73 NS NA NS NA Semi-Annually
MW-18 (Class III) Sulfate (mg/L) 1938.9 NS NA 2/27/2012 1920 NS NA NS NA 4/30/2012 1790 NS NA 7/18/2012 1900 NS NA NS NA Semi-Annually
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 Semi-Annually
TDS (mg/L) 3198.77 NS NA
2/27/2012
3230 NS NA NS NA
4/30/2012
3280 NS NA
7/18/2012
3220 NS NA NS NA Semi-Annually
Ql 2012 Results 02 2012 Results Q3 2012 Results
Monitoring Well
(Water Class)
Constituent
Exceeding GWCL
GWCL in Current
GWDP
January 2012
Monthly Sample
Date
January 2012
Monthly Result
Ql 2012 Sample
Date Ql 2012 Result
March 2012
Monthly Sample
Date
March 2012
Monthly Result
April 2012
Monthly
Sample Date
April 2012 Monthly
Result
Q2 2012
Sample Date
Q2 2012
Result
June 2012
Monthly
Sample Date
June 2012
Monthly
Result
Q3 2012
Sample Date
Q3 2012
Result
August
2012
Monthly
Sample
Date
August
2012
Monthly
Result
September
2012
Monthly
Sample
Date
September
2012
Monthly
Result
Sample
Frequency
Required Semi-Annual San npiing Wells, con tinued
MW-19 (Class UI) 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 Semi-Annually MW-19 (Class UI)
Nitrate + Nitrite (as 2.83
2/28/2012
3.9
5/16/2012 7/19/2012
4 N) (mg/L) 2.83 NS NA 3.9 NS NA NS NA 3.7 NS NA 4 NS NA NS NA Semi-Annually
MW-23 (Class UI) 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 Semi-Annually MW-23 (Class UI)
Manganese (ug/L) 550 NS NA
2/20/2012
51 NS NA NS NA
5/16/2012
49 NS NA
7/17/2012
117 NS NA NS NA Semi-Annually
MW-24 (Class UI)
Cadmium (ug/L) 2.5 NS NA
2/23/2012
2.25 NS NA NS NA
5/10/2012
2.01 NS NA
7/18/2012
4.7 NS NA NS NA Semi-Annually
MW-24 (Class UI) Thallium (ug/L) 1 NS NA 2/23/2012 0.96 NS NA NS NA 5/10/2012 0.74 NS NA 7/18/2012 1.36 NS NA NS NA Semi-Annually MW-24 (Class UI)
Field pH (S.U.) 6.5 - 8.5 NS NA
2/23/2012
6.03 NS NA NS NA
5/10/2012
6.2/ NS NA
7/18/2012
6.45 NS NA NS NA Semi-Annually
MW-27 (Class UI)
Nitrate + Nitrite (as
N) (mg/L) 5.6 NS NA
2/28/2012
6.4 NS NA NS NA
5/1/2012
6.2 NS NA
7/16/2012
6.7 NS NA NS NA Semi-Annually
MW-27 (Class UI)
Chloride (mg/L) 38 NS NA
2/28/2012
45 NS NA NS NA
5/1/2012
46 NS NA
7/16/2012
47 NS NA NS NA Semi-Annually
MW-27 (Class UI) Sulfate (mg/L) 462 NS NA
2/28/2012
451 NS NA NS NA
5/1/2012
446 NS NA
7/16/2012
453 NS NA NS NA Semi-Annually MW-27 (Class UI) Field pH (S.U.) 6.5-8.5 NS NA 2/28/2012 7.24 NS NA NS NA 5/1/2012 7.03 NS NA 7/16/2012 7.40 NS NA NS NA Semi-Annually
MW-27 (Class UI)
TDS (mg/L) 1075 NS NA
2/28/2012
1140 NS NA NS NA
5/1/2012
1170 NS NA
7/16/2012
1150 NS NA NS NA Semi-Annually
MW-27 (Class UI)
Gross Alpha minus
Rn & U (pCi/L) 2 NS NA
2/28/2012
2.3 NS NA NS NA
5/1/2012
0.8 NS NA
7/16/2012
1.2 NS NA NS NA Semi-Annually
MW-28 (Class UI)
Chloride (mg/L) 105 NS NA
2/28/2012
109 NS NA NS NA
5/8/2012
114 NS NA 7/16/2012 105 NS NA NS NA Semi-Annually
MW-28 (Class UI) Manganese (ug/L) 18.37 NS NA
2/28/2012 NA NS NA NS NA 5/8/2012 1850 NS NA 8/1/2012 1660 NS NA NS NA Semi-Annually MW-28 (Class UI)
Field pH (S.U.) 6.1 -8.5 NS NA
2/28/2012
6.22 NS NA NS NA
5/8/2012
6.15 NS NA 7/16/2012
8/1/2012
6.3«
(5.81) NS NA NS NA Semi-Annually
MW-29 (Class IU)
Iron (ug/L) 1869 NS NA
2/22/2012
1310 NS NA NS NA
5/8/2012
1400 NS NA 7/16/2012 1270 NS NA NS NA Semi-Annually
MW-29 (Class IU)
Manganese (ug/L) 5624 NS NA
2/22/2012
NA NS NA NS NA
5/8/2012
6/40 NS NA 8/1/2012 5190 NS NA NS NA Semi-Annually
MW-29 (Class IU) TDS (mg/L) 4400 NS NA 2/22/2012 NA NS NA NS NA 5/8/2012 4600 NS NA 8/1/2012 4420 NS NA NS NA Semi-Annually MW-29 (Class IU)
Field pH (S.U.) 6.46 - 8.5 NS NA
2/22/2012
7.12 NS NA NS NA
5/8/2012
6.47 NS NA 7/16/2012
8/1/2012
6.68
(6.45) NS NA NS NA Semi-Annually
MW-32 (Class UI)
Gross Alpha minus
Rn & U (pCi/L) 3.33 NS NA
2/21/2012
1.8 NS NA NS NA
4/30/2012
2.4 NS NA
7/9/2012
1.4 NS NA NS NA Semi-Annually
2/21/2012 4/30/2012 7/9/2012
Field pH (S.U.) 6.4 - 8.5 NS NA 6.57 NS NA NS NA 6.40 NS NA 6.72 NS NA NS NA Semi-Annually
Notes:
GWCL values are taken from February 15, 2011 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 August 28, 2012 DRC letter. TDS monitoring in MW-26 returned to the routine frquency of quarterly. No sample was required for this sampling period.
Pursuant to the August 28. 2012 DRC letter field pH will no longer be tracked on the exceedance sheet after the 3rd quarter 2012 because 8 or more consecutive results are within die GWCL limits.