DRC-2012-001153 - 0901a068802b0800

DRC-2012-001153
Denison Mines (USA) Corp
105017th Street Suite 950
Denver CO 80265
USA
Tel [phone]
Fax [phone]
www denisonmines com
DENISO
MINES
February 15 2012
VIA PDF AND FEDEX
Rusty Lundberg
Co Executive Secretary
Utah Water Quality Board
Utah Department of Environmental Quality
195 North 1950 West
P O 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 I G 1 (a)
Dear Mr Lundberg
The White Mesa Mill (the Mill ) performed fourth quarter ( Q4 ) groundwater monitonng
during the period from October 1 to December 31 2011 under the July 14 2011 version of the
Mill s Groundwater Discharge Permit (the GWDP ) All analytical data needed for comparison
to the GWCLs was received during the period ending January 17 2012
Pursuant to Part IG 1 a) of the GWDP (July 14 2011) please take notice that the concentrations
of specific constituents in the monitoring wells highlighted in yellow and bold italics in the
columns for the fourth 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 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 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 contanunation and an evaluation of potential remedial action to
restore and maintain groundwater quality to insure that Penrnt limits will not be exceeded at the
complieince monitormg pomt and that DMT or BAT will be reestablished The summary below
relating to the fourth quarter 2011 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 Denison as determined by Utah Department of
Environmental Quality (UDEQ) Staff and as stated m teleconferences with Denison on April 27
and May 2 2011 Based on the assessments noted below relating to the fourth quarter
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February 15 2012
Page 2
exceedances a plan and schedule for the fourth quarter 2011 exceedances will not be required
for the reasons stated
Under the July 14 2011 revision 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 requires that
constituent concentrations m 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 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 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
Denison and the Executive Secretary acknowledge 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 + nitnte and chloride m groundwater Denison
submitted a Corrective Action Plan ( CAP ) for nitrate + nitrite and chloride m
groundwater The CAP is currently under revision in response to DRC comments and
will be resubmitted on or before February 27 2012 Based on information 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 + 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 due to effects from the evolution of carbon
dioxide and subsequent increase m pH from field to lab Denison s letter to the Co
Executive Secretary of the Utah Water Quality Board dated January 31 2011 proposed
the recalculation of the GWCLs for field pH Following the statistical evaluation of pH
data by Denison s geochemical consultant INTERA Inc Denison compared the Mill s
most recent groundwater pH data from the second quarter of 2011 including 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 the second quarter were already outside the
revised GWCLs that were to be proposed in the June 30 2011 letter By the letter dated
June 30 2011 Denison 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 Denison s findings 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 Denison submitted the Work Plan and Schedule on
January 20 2012 The Work Plan and Schedule are cunently under review by DRC
DENISO MINES
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February 15 2012
Pages
Based on information provided by UDEQ in teleconferences on April 27 and May 2
2011 and due to the current commitment to evaluate site field pH conditions the 30 day
plan and schedule for assessment is not required for field pH exceedances
I 0 Exceedances in Required Quarterly Samphng Wells
II 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 penods m the fourth quarter 2011 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 first occurred m the fourth quarter of 2011 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 m previous reporting periods
are discussed in the respective 30 day plan and schedule for that quarter
MW 26
• Nitrate + nitrite concentration exceeded its GWCL in all sampling events during the
fourth quarter 2011 As mentioned above nitrate + nitrite concentrations are currently
under re evaluation and a plan to address this consecutive exceedance is not necessary
and IS not being submitted
Uranium concentration exceeded its GWCL m all of the Q4 sampling events Uranium
concentrations exceeded the GWCLs in two consecutive sampling events in 2010 The
consecutive uranium exceedances noted in MW 26 were previously discussed in the Ql
2011 Plan and Time Schedule Under Part IG4 (d) subimtted to UDEQ on June 13
2011 and revised on January 20 2012 An additional plan or schedule to address the Q4
exceedances is not necessary and is not being subnutted because the assessment
processes and schedule have not changed since the June 13 2011 and January 20 2012
submissions
Chloroform in MW 26 has exceeded its GWCL for all of the monitoring periods for
2011 MW 26 IS used as a pumping well for the ongoing chloroform capture program
and IS expected to yield increased concentrations of chloroform
Methylene chloride in MW 26 exceeded its GWCL m the November and December
monthly sampling events MW 26 is used as a pumping well for the ongoing chloroform
capture program and is expected to yield increased concentrations of methylene chloride
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 m detemumng compliance for this well Based on
DENISO
MINES
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information provided by UDEQ 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
chlonde in MW 26
• Chloride concentration exceeded its GWCL in the October (Q4) and December sampling
events As mentioned above chloride concentrations are currently under re evaluation
and a plan to address this consecutive exceedance is not necessary and is not being
submitted
MW 30
• Nitrate + nitrite concentration exceeded its GWCL m all sampling events during the
fourth quarter 2011 and dunng previous quarters As mentioned above nitrate + nitrite
concentrations are cunently under re evaluation and a plan to address this consecutive
exceedance is not necessary and is not being submitted
Chloride concentration exceeded its GWCL m the September monthly and the October
(Q4) sampling events As mentioned above chlonde concentrations are cunently under
re evaluation and 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 the first and
second quarter 2011 The consecutive selenium exceedances noted in MW 30 in Q4
2011 were previously discussed in the Ql 2011 Plan and Time Schedule Under Part
IG4 (d) submitted to UDEQ on June 13 2011 as revised on January 201 2012 An
additional plan or schedule to address the Q4 exceedances is not necessary and is not
being submitted because the assessment processes and schedule have not changed since
the June 13 2011 and January 20 2012 subnussions
MW 31
Nitrate + nitrite concentration exceeded its GWCL in all sampling events during the
fourth quarter 2011 and dunng previous quarters As mentioned above nitrate + nitnte
concentrations are cunently under re evaluation and a plan to address this consecutive
exceedance is not necessary and is not being submitted
Chloride concentration exceeded its GWCL in all sampling events during the fourth
quarter 2011 As mentioned above chloride concentrations are cunently under re
evaluation and a plan to address this consecutive exceedance is not necessary and is not
being submitted
Sulfate concentration exceeded its GWCL in the October (Q4) and November sampling
events Sulfate concentrations exceeded the GWCLs in two consecutive sampling events
in Ql 2011 The consecutive sulfate exceedances noted in MW 31 m Q4 2011 were
previously discussed in the Ql 2011 Plan and Time Schedule Under Part IG4 (d)
DENISO
MINES
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submitted to UDEQ on June 13 2011 as revised on January 201 2012 An additional
plan or schedule to address the Q4 exceedances is not necessary and is not being
subnutted because the assessment processes and schedule have not changed since the
June 13 2011 and January 201 2012 submissions
MW 35
• Manganese concentration exceeded the GWCL in MW 35 m all of the Q4 sampling
events The consecutive manganese exceedances noted in MW 35 were previously
discussed in the Plan and Time Schedule Under Part 104 (d) submitted to UDEQ on
September 7 2011 as revised on January 20 2012 An additional plan or schedule to
address the Q4 exceedances is not necessary and is not being subnutted because the
assessment processes and schedule have not changed since the September 7 2011 and
January 20 2012 submissions 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 determination of background
Therefore exceedances of the interim GWCLs do not necessarily represent impacts to
groundwater from Mill activities
• Uranium concentration exceeded the GWCL in MW 35 in all of the Q4 sampling events
The consecutive uranium exceedances noted in MW 35 were previously discussed in the
Plan and Time Schedule Under Part IG4(d) submitted to UDEQ on September 7 2011
as revised on January 20 2012 An additional plan or schedule to address the Q4
exceedances is not necessary and is not being submitted because the assessment
processes and schedule have not changed since the September 7 201 land January 20
2012 submissions It should be noted that background has not yet been established for
MW 35 and that the interim GWCLs for MW 35 have been set at a fraction of the
Groundwater Quality Standards pending the determination of background Therefore
exceedances of the interim GWCLs do not necessarily represent impacts to groundwater
from Mill activities
• Gross alpha concentration exceeded the GWCL in MW 35 m all of the Q4 sampling
events An additional plan or schedule to address the Q4 exceedances is not necessary
and IS not being submitted because the background has not yet been established for MW
35 and the interim GWCLs for MW 35 have been set at a fraction of the Groundwater
Quality Standards pending the determination of background Therefore exceedances of
the intenm GWCLs do not necessarily represent impacts to groundwater from Mill
activities
• Thallium concentration exceeded the GWCL in MW 35 in the Q3 2011 (August) Q4
2011 (October) and the December monthly sampling events An additional plan or
schedule to address the these exceedances is not necessary and is not being submitted
because the background has not yet been established for MW 35 and the interim GWCLs
for MW 35 have been set at a fraction of the Groundwater Quality Standards pending the
DENISO MINES
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determination of background Therefore exceedances of the interim GWCLs do not
necessarily represent impacts to groundwater from Mill activities
1 2 Quarterly Wells with New Exceedances Reported in Q4
New exceedances for the Q4 2011 quarterly well sampling program are listed below The
exceedances listed will result in an accelerated sampling frequency from quarterly to monthly It
IS important to note that the wells listed below will only be sampled during the monthly events
for those constituents which 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
• Uranium in MW 30 exceeded the GWCL in the October (Q4) sampling event
2 0 Exceedances m Semiannual Samphng Wells Accelerated to Quarterly
2 1 Seim annual Wells with Two Successive Exceedances
As indicated m the attached Table 1 the analytes discussed below exceeded their respective
GWCLs for two successive samphng periods (Q3 [2011] and Q4 [2011])
MW 3
Selenium has exceeded the GWCL for both the Q3 sampling event and the Q4 sampling
event The consecutive selenium exceedances noted in MW 3 were previously discussed
in the Plan and Time Schedule Under Part IG4 (d) submitted to UDEQ on June 13
2011 as revised on January 20 2012 An additional plan or schedule to address the Q4
exceedances is not necessary and is not being submitted because the assessment
processes and schedule have not changed since the June 13 2011 and January 20 2012
subnussions
Fluoride has exceeded the GWCL for both the Q3 sampling event and the Q4 sampling
event The consecutive selenium exceedances noted in MW 3 were previously discussed
in the Plan and Time Schedule Under Part IG4 (d) subnutted to UDEQ on June 13
2011 as revised on January 20 2012 An additional plan or schedule to address the Q4
exceedances is not necessary and is not being submitted because the assessment
processes and schedule have not changed since the June 13 2011 and January 20 2012
submissions
MW 12
• Selenium has exceeded the GWCL for both the Q3 sampling event and the Q4 sampling
event The consecutive selenium exceedances noted in MW 12 were previously discussed
in the Plan and Time Schedule Under Part IG4 (d) subnutted to UDEQ on June 13
2011 as revised on January 20 2012 An additional plan or schedule to address the Q4
DENISO MINES
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exceedances is not necessary and is not being submitted because the assessment
processes and schedule have not changed since the June 13 2011 and January 20 2012
submissions
MW 18
Thallium has exceeded the GWCL for both the Q3 sampling event and the Q4 sampling
event The consecutive thallium exceedances noted in MW 18 were previously discussed
in the Plan and Time Schedule Under Part IG4 (d) subnutted to UDEQ on June 13
201 las revised on January 20 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 June 13 201 land January 20 2012
submissions
MW 24
• Field pH has been slightly outside (slightly lower than) the GWCL for both the Q3
sampling event and the Q4 sampling event As mentioned above site wide pH issues and
trends are cunently under re evaluation and a plan and schedule to address this
consecutive exceedance is not necessary and is not being subimtted
MW 27
• Nitrate + Nitnte have exceeded the GWCL for both the Q3 sampling event and the Q4
sampling event and during previous quarters As mentioned above nitrate + nitnte
concentrations are cunently under re evaluation and a plan to address this consecutive
exceedance is not necessary and is not being submitted
• Chloride has exceeded the GWCL for both the Q3 sampling event and the Q4 sampling
event and during previous quarters As mentioned above chloride concentrations are
cunently under re evaluation and a plan to address this consecutive exceedance is not
necessary and is not being submitted
• TDS has exceeded the GWCL for both the Q3 sampling event and the Q4 sampling
event The consecutive TDS exceedances noted in MW 27 were previously discussed in
the Plan and Time Schedule Under Part IG4 (d) submitted to UDEQ on June 13 2011
as revised on January 20 2012 An additional plan or schedule to address the Q4
exceedances is not necessary and is not being submitted because the assessment
processes and schedule have not changed since the June 13 2011 and January 20 2012
submissions
MW 28
Field pH has been slightly outside (slightly lower than) the GWCL for both the Q3
sampling event and the Q4 sampling event and dunng previous quarters As mentioned
above site wide pH issues and trends are cunently under re evaluation and a plan and
schedule to address this consecutive exceedance is not necessary and is not being
submitted
DENISO MINES
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MW 32
• Field pH has been slightly outside (slightly lower than) the GWCL for both the Q3
sampling event and the Q4 sampling event and during previous quarters As mentioned
above site wide pH issues and trends are cunently under re evaluation and a plan and
schedule to address this consecutive exceedance is not necessary and is not being
submitted
2 1 Seim annual Wells with New Exceedances Reported in Q4
New exceedances for the senu annual well sampling program are listed below The exceedances
listed will result m an accelerated sampling frequency from senu annually to quarterly It is
important to note that dunng the first and third quarterly events the wells listed below will only
be sampled for those constituents which exceeded the GWCLs because the first and third
quarterly events do not include the semi annual well sampling program The wells listed below
will be sampled for all constituents listed in the GWDP dunng the second and fourth quarter
events as that is the regularly scheduled sampling for the semi annual wells
• Iron in MW 15 exceeded the GWCL in the Q4 sampling event in October 2011
• Nitrate + Nitrite in MW 19 exceeded the GWCL in the Q4 sampling event in October
2011
• Manganese in MW 23 exceeded the GWCL in the Q4 samphng event in October 2011
If you have any questions or require any further information please contact the undersigned
W^nivTischler
director Compliance and Permitting
David Frydenlund
Ron Hochstem
Harold Roberts
David Turk
DENISO MINES
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13r> Q13 .010 Results -->> V < (22 2010 Results > .:^^^^Q3 2010 Results Q4 2010 Results
Moniton g
WeU(W te
Class)
Co statue t E ceed ng
GWCL
GWCL July
14 2011
GWDP
Ql 2010"
Sample Date
Ql 2010
Result
Q2 2010^
Sample Date
ft"
Q2 2010
Result
May 2010
M nthiy
S mpleDate
May 2010
Monthly
Result
J 2010
Mo thiy
S mpleDate
J ne2010
Mo thly
Result
J ly2010
Mo thly
SampI Date
July,2010
Monthly Result
August 2010
Monthly
Sample Date
August 2010
Mo thly R s It
Q3 2010
S mpleDate
, Q3 2010
Result
Octobe 2010
" Mo thly
Sample Date
Octobe 2010
Mo thly ,
Result
Q4 2010
S mpleDate
;j^X?4 2010f.^
Result
Decembe
; 2010
Mo thly
Sample Date
Decembe
2010 Monthly
Result
Required Qua rte ly Sampbng W Ils
MW 11
(Class n)
ifMangan ( g/L) i 13129 2/10/10 134 4/28/10 137 ^ -=^^5/24/10"' 122 ?6/16/10 5 99 1 7/20/10 i 123 "8/25/10 138 i 9/8/10 128 -ilO/20/10 — 141 11/11/10 133 12/15/10 158 MW 11
(Class n) T trahydr furan ( g/L) } 115 2/10/10 12 4/28/10 5 2.,.. * 5/24/10 1 <10 16/I6/IO i* <10 7/27/10 ^ 217 8/25/10 'i <10 9/8/10 ' <1 0 -ilO/20/10 — 1 <10 11/11/10 S <1 0 ~ 12/15/10 ~ r "<i 0
MW 14
(Class ni).; IdpHTsU) -^^ 2/2/lOT 645 ^-4/21/10 629 -^5/21/10-^ 636 =-^6/16/10"=^ 645 -p7 19 -8/25/10--^ 648 ^-=^9/8/10--"--4-6 51—-=
I <-*•!,
I1O/2O/IO— --^ 6 60 -11/10/10 637 12/15/10 647
MW 25 (Clas
^ in)
- F Id pH (S U ) 65_8r,. "^2/26/20Tcr"
i T^a"
—V6 53 1
4/28/2010"^ i
1
~ \ NA^ ,J_NS.i_ -.^ NA^L,,. NS^^ % J2 NA 1
~ 9/8/2010""'°" _ L6 58"^ T„NA "T— 11/10/10 ^ 636 ^TTNA^II MW 25 (Clas
^ in) J \ U ahi m "
"^2/26/20Tcr"
i T^a" {"5 93 r
1
4/28/2010"^ i
1 ! 6 43 NS f NA NS ~1"NA~ " NS " NA""^ -ir^NA —"
1
~ 9/8/2010""'°"
657 - 1'~NA
11/10/10
f5 89
f
MW26
(Clas ni)
N tr te N tnte (as N)
'*"-^""(mK/L) -0 62.^.^*^
2/2/10
13
4/22/10
2
!
V
5/21/10
_4>-0 3_^A_< r
6/16/10
^.^0 4L„
Nt,
T
7/21/10
1 • — -
0 6., 1 """•>!
8/16/10
.Jl.06 ^7
f I
•1
-1
9/26/10
07 ...t„ 0.4,
11/15/10
37-0 4
f
MW26
(Clas ni)
? U am m ( g/L) \ 418
2/2/10
58 7
4/22/10
.66 7 !
V
5/21/10
j 37 4
r
6/16/10
1 36 6 ^ Nt,
T
7/21/10
i 34 4
1 """•>!
8/16/10
718 f I
•1
-1
9/26/10
72 7 Jf 37 5
11/15/10
.^30 4 ' 29 6 \ f
MW26
(Clas ni)
'Chl f rm"(iig/L) ~ ~i( 70
2/2/10
700
4/22/10
1700
!
V
5/21/10
800
r
6/16/10
940
Nt,
T
7/21/10
900
1 """•>!
8/16/10
2800
f I
•1
-1
9/26/10
2100 i
10/20/10
1000
11/15/10
1900 1400
f
MW26
(Clas ni)
? Chl^nd (mg/L) ~ " "58 31
2/2/10
72
4/22/10
i 57
!
V
5/21/10
80
r
6/16/10
Nt,
T
7/21/10
1 """•>!
8/16/10
" ""49 r
f I
•1
-1
9/26/10
64
i
10/20/10
52—
11/15/10
48 -
12/15/10
f
MW26
(Clas ni)
F IdpH(SU) 6 74 8 5 2/2/10 659 4/22/10 C7 18
!
V
5/21/10 636
r
6/16/10 6 98
Nt,
T
7/21/10 645
1 """•>!
8/16/10 639
f I
•1
-1
9/26/10 6 60
i
10/20/10 661 11/15/10 649 12/15/10 645
f
MW26
(Clas ni) f D hlo om thane
(Methyle e Chl nde) 5
2/2/10
1
4/22/10
99
!
V
5/21/10
NR
r
6/16/10
22
Nt,
T
7/21/10
12
1 """•>!
8/16/10
24
f I
•1
-1
9/26/10
45
i
10/20/10
55
11/15/10
16
12/15/10
1 2
f
MW26
(Clas ni)
TDS (mg/L) 3284 19
2/2/10
3100
4/22/10
3280
!
V
5/21/10
NS
r
6/16/10
NS
Nt,
T
7/21/10
NS NS
f I
•1
-1
9/26/10
3440
i
10/20/10
NS
11/15/10
3140 NS
f
MW26
(Clas ni)
Gros Alpha min R &
U (pCi/L) 4 69
2/2/10
24
4/22/10
06
!
V
5/21/10
NS
r
6/16/10
NS
Nt,
T
7/21/10
NS NS
f I
•1
-1
9/26/10
25
i
10/20/10
NS
11/15/10
„ 64 NS
MW 30
(Clas U)
N trate -i- N tnte (as N)
(mg/L) 25
2/9/10
161
4/27/10
158
5/21/10
17
6/15/10
153 7/21/To 16 8/24/lo" 16
9/14/10
/5
10/19/10
/5
11/9/10
15
12/14/10
16
MW 30
(Clas U)
Chlonde (mg/L) 128 2/9/10 127 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
(Clas U) F IdpH(SU) 65 85 2/9/10 681 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
(Clas U)
U am m ( g/L) 8 32
2/9/10
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
664
12/14/10
NS
MW 30
(Clas U)
Sel mum( g/L) 34
2/9/10
32
4/27/10
353
5/21/10
NS
6/15/10
NS 7/27/10 33 5 8/24/10 35 6
9/14/10
32 6
10/19/10
32 4
11/9/10
32 2
12/14/10
30 5
MW31
(Clas DI)
N trate + N tnte (as N)
(mg/L) 5
2/9/10
21 7
4/20/10
22 5 5/21/10 23 6/15/10 211 7/21/10 20 8/24/10 22
9/13/10
21 10/19/10 20
11/9/10
20
12/14/10
20
MW31
(Clas DI)
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 MW31
(Clas DI) Chlonde (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
MW31
(Clas DI)
F IdpH(SU) 65 85
2/9/10
6 96
4/20/10
7 38 5/21/10 6 95 6/15/10 7 01 7/21/10 78 8/24/10 7 1
9/13/10
7 66 10/19/10 6 92
11/9/10
6 98
12/14/10
6 95
MW31
(Clas DI)
S If te (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
11/9/10
539
12/14/10
NS
MW 35
(Clas n)
Manganese ( g/L) 200 NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA
11/30/10
698 NS NA
MW 35
(Clas n)
Thall m( g/1) 05 NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA
11/30/10
114 NS NA MW 35
(Clas n) G OSS Alph mm R &
U (pCi/L) 3 75 NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA 11/30/10 26 NS NA
MW 35
(Clas n)
U am m ( g/L) 75 NS NA NS NA NS NA NS NA NS NA NS NA NS NA NS NA
11/30/10
272 NS NA
Req md Semi Annual S mphng Wells
MW 2 (Clas
ni)
G Alpha mi sR &
U (pCi/L) 32 NS NA 1 2 NS NA NS NA NS NA NS NA NS NA NS NA 55 NS NA
MW 3 (Class
m)
S 1 m m ( g/L) 37 NS NA
5/3/10
372 NS NA NS NA NS NA NS NA
9/20/10
35 5 NS NA
11/19/10
38 8 NS NA MW 3 (Class
m) Feid pH(SU) 65 85 NS NA 5/3/10 614(625) NS NA NS NA NS NA NS NA 9/20/10 639 NS NA 11/19/10 635 NS NA
MW 3 (Class
m)
Fi onde(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
11/19/10
0 77 NS NA
MW 3A
(Clas ni)
FeldpH (SU) 65 8 5 NS NA
5/4/10
623(624) NS NA NS NA NS NA NS NA
9/21/10
642 NS NA
11/22/10
621 NS NA MW 3A
(Clas ni) S If te (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 MW 3A
(Clas ni) TDS (mg/L) 5805 NS NA 5/4/10 5860 NS NA NS NA NS NA NS NA 9/21/10 5470 NS NA 11/22/10 5330 NS NA
MW 3A
(Clas ni)
S 1 m m( g/L) 89 NS NA
5/4/10
81 4 NS NA NS NA NS NA NS NA
9/21/10
NS NS NA
11/22/10
948 NS NA
MW 5 (Class
n) Uram m( g/L) 75 NS NA 4/26/10 0 39 NS NA NS NA NS NA NS NA NS NA NS NA 11/11/10 116 NS NA
MW 12
(Clas ID)
F IdpH(SU) 65 85 NS NA 4/27/10 7 16 NS NA NS NA NS NA NS NA 9/20/10 6 62 NS NA 11/19/10
11/11/10
647 NS NA MW 12
(Clas ID) S 1 m m ( g/L) 25 NS NA 4/27/10 25 7 NS NA NS NA NS NA NS NA 9/20/10 319 NS NA 11/19/10
11/11/10
276 NS NA
MW 15
(Class m Ir ( g/L) 81 7 NS NA 4/21/10 ND NS NA NS NA NS NA NS NA NS NA NS NA
11/19/10
11/11/10 ND NS NA
MW 18
(Clas ID)
Thall m( g/1) 1 95 NS NA
5/4/10
3 73 NS NA NS NA NS NA NS NA
9/15/10
364 NS NA
11/18/10
3 57 NS NA
MW 18
(Clas ID) S If te (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 MW 18
(Clas ID)
F IdpH(SU) 6 25 8 5 NS NA
5/4/10
62 NS NA NS NA NS NA NS NA
9/15/10
7 23 NS NA
11/18/10
6 37 NS NA
MW 18
(Clas ID)
TDS (mg/L) 3198 77 NS NA
5/4/10
3280 NS NA NS NA NS NA NS NA
9/15/10
3190 NS NA
11/18/10
3030 NS NA
Ql 2010 Results Q2 2010 Results 03 2010 Res Its Q4 2010 Results
Mon tonng
WeU (Wate
Class)
Constatue tE ceed ing
GWCL
GWCL
Current
GWDP
Ql Sample
Date Ql Result Q2 Sample
Date Q2 Result May Monthly
Sample Date
May Mo thly
Result
J e Monthly
Sample D te
June M thly
Result
Juiy Mo thly
Sample Date
July Monthly
Result
August
Mo thly
Sample Date
August
Monthly Result
Q3 SampI
Date Q3 Result
Octobe
Mo thly
Sample Date
Octobe
Monthly
Result
Q4 Sample
Date Q4 Result
December
Mo thly
Sample D te
Decembe
M thly
Result
Required Sem A ual Samplmg Wells, CO ta ed
MW 19
(Clas ID)
Feid pH(SU) 6 78 8 5 NS NA
5/4/10
661(666) NS NA NS NA NS NA NS NA
9/15/10
6 93 NS NA
11/18/10
68 NS NA MW 19
(Clas ID) N trat -1- N tnte (as N)
(mg/L) 2 83 NS NA
5/4/10
26 NS NA NS NA NS NA NS NA
9/15/10
NS NA NA
11/18/10
24 NS NA
MW 23
(Clas m)
F IdpH(SU) 65 85 NS NA 4/22/10 618 NS NA NS NA NS NA NS NA 9/14/10 7 05 NS NA 11/22/10 644 NS NA MW 23
(Clas m) Manganese ( g/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 m)
Cadrai m( g/L) 25 NS NA
5/6/10
428 NS NA NS NA NS NA NS NA
9/21/10
506 NS NA
11/17/10
322 NS NA MW 24
(Class m) Thall m ( g/L) 1 NS NA 5/6/10 13 NS NA NS NA NS NA NS NA 9/21/10 157 NS NA 11/17/10 109 NS NA
MW 24
(Class m)
F eld pH (S U ) 65 85 NS NA
5/6/10
591(5 78) NS NA NS NA NS NA NS NA
9/21/10
6 64 NS NA
11/17/10
61 NS NA
MW 27
(Class ni)
N tr te + N tnte (as N)
(mg/L) 56 NS NA
5/3/10
58 NS NA NS NA NS NA NS NA
9/14/10
J
59 NS NA
11/12/10
57 NS NA
MW 27
(Class ni)
Chl nd (mg/L) 38 NS NA
5/3/10
42 NS NA NS NA NS NA NS NA
9/14/10
J
42 NS NA
11/12/10
45 NS NA MW 27
(Class ni) S If te (mg/L) 462 NS NA 5/3/10 469 NS NA NS NA NS NA NS NA 9/14/10
J
461 NS NA 11/12/10 452 NS NA MW 27
(Class ni) FeldpH (SU) 65 8 5 NS NA 5/3/10 6 78 NS NA NS NA NS NA NS NA 9/14/10
J
7 68 NS NA 11/12/10 6 89 NS NA
MW 27
(Class ni)
TDS (mg/L) 1075 NS NA
5/3/10
1160 NS NA NS NA NS NA NS NA
9/14/10
J 1060 NS NA
11/12/10
1110 NS NA
MW 27
(Class ni)
G s Alpha nu R &
U (pCi/L) 2 NS NA
5/3/10
1 6 NS NA NS NA NS NA NS NA
9/14/10
J
NA NS NA
11/12/10
24 NS NA
MW 28
(Class m)
Chlond (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 m) Feid pH(SU) 61 85 NS NA 4/19/10 567 NS NA NS NA NS NA"" NS NA 9/14/10 5 91 NS NA 11/12/10 5 72 NS NA
MW 29
(Clas m)
Iro ( ft/L) 1869 NS NA 4/27/10 1630 NS NA NS NA NS NA NS NA NS NA NS NA 11/9/10 1490 NS NA MW 29
(Clas m) FeldpH(SU) 646 8 5 NS NA 4/27/10 6 82 NS NA NS NA NS NA NS NA NS NA NS NA 11/9/10 617 NS NA
MW 32
(Class in)
G OSS Alpha mi s R &
U (pCi/L) 3 33 NS NA 4/20/10 54 NS NA NS NA NS NA NS NA 9/13/10 29 NS NA 11/10/10 88 NS NA MW 32
(Class in) F eld pH (S U ) 64 85 NS NA
4/20/10
603 NS NA NS NA NS NA NS NA
9/13/10
6 33 NS NA
11/10/10
6 05 NS NA
N te
GWCL ales are take f omF bruary 15 2011 ers of GWDP
NS = Not Required and N t Sampled
NR - Req ired and Not Reported
NA = Not Appl c ble
E ceedan are show yellow
Val s nQpare these are the Feid pH measureme tsfo th esampled analyses
jPurs ant to the October 26,2011 DRC lette gros alpha m mt n g MW 26 returned t the tme freq e y of q arteriy
Table 3 - GWCL Exceedances for Third Quarter 2011 under the July 14 2011 GWDP
Ql 2011 Res Its 02 2011 Res Its Q3 2011 Res Its 04 2011 Results
Mo to gWeU
(Wate Cl )
C statu tE ceed g
GWCL
GWCL
J Iyl4
2011
GWDP
Ja ay
2011
M thly
S mple
Date
J uary
2011
Mo thiy
S mple
Res It
Ql 2011
S mple
D te
Ql 2011
Result
March 2011
Mo thly
Sample
Date
M h2011
M thly
Result
Q2 2011
Sample
Date
Q2 2011
Result
M y 2011
M nthly
S mple
Date
May 2011
M thly
Result
J 2011
M thly
S mpleD te
Ju 2011
Mo thiy
Res it
J iy2011
Mo thly Sample
D te
July 2011
M thly Result
Q3 2011
S mpl
D te
Q3 2011
Result
Septembe
2011
M thly
SampI Date
S ptembe
2011M thly
Re ult
Q4 2011S mpl
D te Q4 2011 Resuh
No embe
2011
Mo thiy
Sample
Date
No mb
2011
M thly
R suit
Decembe
2011
M thiy
Sample D te
Decembe
2011 M nthly
Result
S mpl Frequ y
Req redQ rt iySamph gW ils
MW 11 (Class n) Mangane ( g/L) 131 29 1/11/11 121 2/2/11 145 3/15/11 68 4/4/2011 148 5/10/2011 170 6/15/2011 121 7/6/2011 151 8/3/2011 118 9/7/2011 106 10/4/2011 112 11/9/2011 105 12/14/2011 100 Q art ly MW 11 (Class n) Tetrahydr furan ( g/L) 11 5 1/11/11 <1 0 2/2/11 <1 0 3/15/11 1 0 4/4/2011 <1 0 5/10/2011 <10 6/20/2011 <1 0 7/6/2011 <1 0 8/30/11 <1 0 9/7/2011 <1 0 10/4/2011 <1 0 11/9/2011 <1 0 12/14/2011 <10 Q arte ly
MW 14 (Clas
ni) FeldpH (SU) 65 85 1/11/11 637 2/7/11 622 3/14/11 6 76 4/4/2011 663 5/10/2011 637 6/15/2011 5 S3 7/5/2011 64 8/3/2011 623
(641) 9/8/2011 6 50 10/4/2011 6 71 (6 82) 11/9/2011 6 63 12/12/2011 6 84 Q arte ly
MW 25 (Clas III) F IdpH(SU) 65 85 1/11/11 644 2/2/11 6 66 3/15/11 6 79 4/4/2011 67 5/11/2011 61 6/20/2011 5 77 7/6/2011 629 8/3/2011
8/30/11
642
(654) 9/7/2011 6 54 10/4/2011 66 11/9/2011 6 51 1212/2011 6 87 Q art ly
U am m 65 702 4 77 68 5 56 6 72 7 06 6 74 8/3/2011 6 37 5 96 5 27 656 6 1 Q art ly
N tr te -1- N tnt (as N)
(mg/L) 0 62 02 0 25 06 08 04 03 09 06 24 09 13 23 Q arte ly
U am m ( g/L) 41 8 32 69 3 31 8 602 574 18 5 571 190 561 589 556 57 Q arte ly
Chl f nn ( g/L) 70 800 730 1200 390 1900 730 300 1000 1300 440 1200 1400 Q arte ly
Chlonde (mg/L) 58 31 52 59 64 64 54 39 64 60 66 61 55 62 Q arte ly
MW 26 (Clas
UI)
Feid pH(SU) 6 74 8 5 1/12/11 6 83 2/16/11 6 06 3/15/11 6 89 4/1/2011 622 5/10/2011 643 6/20/2011 652 7/6/2011 635 8/3/2011
8/30/11
607
(658) 9/7/2011 6 71 10/12/2011 6 82 11/9/2011 6 75 12/14/2011 7 1 Q arte ly MW 26 (Clas
UI) D chl m than
(Methyle Chl nd )
( g/L)
5 <1 0 10 14 3 1 20 7 24
8/3/2011
8/30/11
10 79 26 89 77 Q arte ly
TDS (mg/L) 3284 19 3100 3270 3140 3310 3140 3020 3270 3190 3200 3190 3220 3160 Q arte ly
G OSS Alph mm R & U
(pCi/L) 4 69 NS 3 27 33 39 43 28 27 25 22 NS NS Q arteriy
N tr te -1- N tnte (as N)
(mg/L) 25 75 16 17 16 16 17 17 14 16 16 16 16 Q arte ly
MW 30 (Clas n) Chl nd (mg/L) 128 1/10/11 NS 2/1/11 134 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 Quarte ly MW 30 (Clas n) F IdpH(SU) 65 8 5 1/10/11 6 65 2/1/11 6 96 3/14/11 7 10 4/11/2011 6 83 5/10/2011 67 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 Q arte ly
Uramum( g/L) 8 32 NS 5 97 NS 6 49 NS NS NS 8 NS 983 NS NS Q arte ly
Selem m( g/L) 34 362 34 7 34 444 3»3 3«7 32 4 39 7 32 4 36 6 36 8 38 Quarte ly
N tr te -1- N tnte (as N)
(mg/L) 5 19 21 22 21 20 22 22 20 21 21 21 27 Q arte ly
MW 31 (Clas 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 7330 Q arte ly
ffl) Chl nd (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 145 11/8/2011 145 12/12/2011 148 Quarte ly
F IdpH(SU) 65 85 6 65 111 7 43 7 01 6 73 616 664 6 67 7 03 1 28 (7 34) 701 7 46 Q arte ly
S If te (mg/L) 532 NS 538 531 503 512 540 532 537 541 53P 552 530 Q arte ly
Mangan se( g/L) 200 NS NA 248 NS NA 369 NS NA NS NA 348 267 270 277 2»3 247 Q arteriy
MW 35 (Clas
n)
Thalh m ( g/1) 05 NS NA <0 50 NS NA <0 50 NS NA NS NA NS 052 NS 057 ND 0 63 Q arte ly MW 35 (Clas
n) Gro s Alpha rm s R & U
(pCi/L) 3 75 NS NA 2/15/11 26 NS NA 6/7/2011 37 NS NA NS NA 7/20/11 NS 8/2/2011 45 9/7/11 NS 10/3/11 44 11/8/2011 47 12/14/11 42 Q arte ly
Uram m ( g/L) 75 NS NA 12 7 NS NA 21 7 NS NA NS NA 242 183 22 3 201 24 23 6 Quarte ly
Required Sem Annual Samphng Weils
MW2(Clas m) G Alph mi Rn&U
(pCi/L) 32 NS NA 1 1 NS NA 4/12/2011 1 2 NS NA NS NA NS NA 8/8/2011 05 NS NA 10/5/2011 1 3 NS NA NS NA S im Ann ally
MW 3 (Clas ffl) Sel mum( g/L) 37 NS NA 405 NS NA 45 4 NS NA NS NA NS NA 46 NS NA 46 7 NS NA NS NA S im Ann ally MW 3 (Clas ffl) Feid pH(SU) 65 85 NS NA 2/15/11 609 NS NA 4/13/2011 646 NS NA NS NA NS NA 8/10/2011 632 NS NA 10/10/2011 6 53 (6 83) NS NA NS NA Semi Ann ally
Fl nd (Mg/L) 0 68 NS NA 0 69 NS NA 0 68 NS NA NS NA NS NA 0 96 NS NA 091 NS NA NS NA S rm Ann ally
MW 3A (Clas
ffl)
F IdpH(SU) 65 8 5 NS NA 6 05 NS NA 6 58 NS NA NS NA NS NA 619 NS NA 6 5 (6 92) NS NA NS NA Senu An ally MW 3A (Clas
ffl) S If te (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 S mi Ann ally MW 3A (Clas
ffl) 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 Seim Ann ally
Selem m( g/L) 89 NS NA 99 NS NA 85 8 NS NA NS NA NS NA 88 5 NS NA 95 NS NA NS NA S mi Ann ally
MW 5 (Class 0) U am m ( g/L) 75 NS NA 2/14/11 295 NS NA 4/12/2011 7 16 NS NA NS NA NS NA 8/9/2011 05 NS NA ip/10/2011 4 52 NS NA NS NA Senu Ann ally
MW 12 (Clas FeldpH (SU) 65 85 NS NA 2/15/11 643 NS NA 4/5/2011 6 67 NS NA NS NA NS NA 8/9/2011 613 NS NA 1
10/6/2011
(
6 7 (6 97) NS NA NS NA Semi Ann ally
ffl) Selem m( g/L) 25 NS NA 2/15/11 39 NS NA 4/5/2011 21 7 NS NA NS NA NS NA 8/9/2011 254 NS NA
1
10/6/2011
( 354 NS NA NS NA S mi Ann ally
MW 15 (Class
m IT ( g/L) 81 7 NS NA NS NA NS NA 4/12/2011 <0 50 NS NA NS NA NS NA NS NA NS NA 10/10/2011
1
137 NS NA NS NA S mi Ann ally
MW 18 (Clas
ffl)
Thall m( g/I) 1 95 NS NA 3 49 NS NA 3 74 NS NA NS NA NS NA 40 339 NS NA i 383 NS NA NS NA S mi Ann ally
MW 18 (Clas
ffl) S If te (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 1910 NS NA 1
10/11/2011
1
2020 NS NA NS NA S im Ann ally MW 18 (Clas
ffl)
F IdpH(SU) 6 25 8 5 NS NA
2/15/11
6 27 NS NA
4/6/2011
671 NS NA NS NA NS NA 9/21/11 5J>5
(630) NS NA
1
10/11/2011
1 6 55 (6 63) NS NA NS NA Semi Ann ally
TDS (mg/L) 3198 77 NS NA 3250 NS NA 3250 NS NA NS NA NS NA 3190 NS NA 1 3220 NS NA NS NA Semi Ann ally
Ql 2011 Res Its 02 2011 Results 03 2011 Res Its 04 2011 Results
M ton g W II
(W te Cia )
Constatuent E ceed ng
GWCL
GWCL n
C e t
GWDP
Ja uary
2011
Mo thly
Sample
Date
Ja uary
2011
Mo thiy
Sample
Result
Ql 2011
S mple
D te
Ql 2011
R suit
March 2011
Mo thiy
SampI
Date
March 2011
Mo thiy
Result
Q2 2011
Sample
D te
Q2 2011
Result
May 2011
M nthiy
S mple
Date
May 2011
Mo thly
Result
J e2011
Mo thly
S mpleDate
Ju e2011
Mo thly
Result
J Iy2011
Mo thly SampI
D te
J Iy2011
Mo thly Result
Q3 2011
Sampi
D te
Q3 2011
Res it
Septembe
2011
Mo thly
Sample D te
Septembe
2011M thly
Resuh
Q4 2011 SampI
Date CH2011 Result
N mbe
2011
M thly
S mple
D te
N embe
2011
Mo thly
Result
Decembe
2011
Mo thly
Sample D te
Decembe
2011 Monthly
ResuU
Sampi Freq en y
Requ red S nu A ual S mph g W lis, co tm ed
MW 19 (Class
ffl)
F IdpH(SU) 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 1
10/12/2011
6 88 (7 02) NS NA NS NA Senu Ann ally MW 19 (Class
ffl) N trate + N tnte (as N)
(mg/L) 2 83 NS NA
2/21/2011
NS NS NA
4/5/2011
26 NS NA NS NA NS NA
7/20/3011
NS NS NA
1
10/12/2011
4 NS NA NS NA Senu Ann ally
MW 23 (Clas
ffl)
F IdpH(SU) 6 5 8 5 NS NA 2/9/2011 613 NS NA 4/5/2011 7 14 NS NA NS NA NS NA 8/4/2011 638 NS NA 10/6/2011 6 56 (6 77) NS NA NS NA Senu Ann ally MW 23 (Clas
ffl) Mangan ( g/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
557 NS NA NS NA S mi Ann ally
MW 24 (Clas
ffl)
Cadmi m ( g/L) 25 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 S nu Ann ally MW 24 (Clas
ffl) Thall m( g/L) 1 NS NA 2/10/2011 142 NS NA 4/5/2011 107 NS NA NS NA NS NA 8/4/2011 <0 50 NS NA 10/11/2011 0 62 NS NA NS NA Senu Annually
MW 24 (Clas
ffl)
F eld pH (S U ) 65 85 NS NA
2/10/2011
5 73 NS NA
4/5/2011
612 NS NA NS NA NS NA
8/4/2011
645 NS NA
10/11/2011
644 NS NA NS NA Senu Ann ally
MW 27 (Clas
III)
N tr te -H N tnt (as N)
(mg/L) 56 NS NA
2/9/2011
6 NS NA
4/5/2011
64 NS NA NS NA NS NA
8/8/2011
6 NS NA
10/5/2011
1
63 NS NA NS NA S mi Ann ally
MW 27 (Clas
III)
Chlonde (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
1
44 NS NA NS NA Semi Ann ally MW 27 (Clas
III) S If te (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
1
456 NS NA NS NA S mi Ann ally MW 27 (Clas
III) F IdpH(SU) 65 85 NS NA 2/9/2011 671 NS NA 4/5/2011 6 79 NS NA NS NA NS NA 8/8/2011 639 NS NA 10/5/2011
1
7 17 (7 24) NS NA NS NA S im Ann ally
MW 27 (Clas
III)
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
1
1110 NS NA NS NA Semi Ann ally
MW 27 (Clas
III)
G s Alpha nu sR &U
(pCi/L) 2 NS NA
2/9/2011
07 NS NA
4/5/2011
1 1 NS NA NS NA NS NA
8/8/2011
08 NS NA
10/5/2011
1 1 5 NS NA NS NA ^ mi Ann ally
MW 28 (Class
ffl)
Chlonde (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 743 NS NA NS NA S mi Annually MW 28 (Class
ffl) FeldpH (SU) 61 85 NS NA 2/14/2011 569 NS NA 4/11/2011 601 NS NA NS NA NS NA 8/8/2011 5 78 NS NA 10/5/2011 607(6 11) NS NA NS NA S mi Ann aUy
MW 29 (Clas
ffl)
IT ( g/L) 1869 NS NA NS NA NS NA 4/18/2011 3010 NS NA NS NA NS NA 8/9/2011 1080 NS NA 10/5/2011 1220 NS NA NS NA S nu Ann ally MW 29 (Clas
ffl) F IdpH(SU) 6 46 8 5 NS NA NS NA NS NA 4/18/2011 645 NS NA NS NA NS NA 8/9/2011 620 NS NA 10/5/2011 6 52 NS NA NS NA S nu Ann ally
MW 32 (Class
ffl)
G Alpha mi R &U
(pCi/L) 3 33 NS NA 2/9/2011 1 5 NS NA 4/1/2011 46 NS NA NS NA NS NA 8/2/2011
8/30/11
1 9 NS NA 10/3/2011 37 NS NA NS NA S mi Ann ally MW 32 (Class
ffl) F IdpH(SU) 64 85 NS NA
2/9/2011
599 NS NA
4/1/2011
614 NS NA NS NA NS NA
8/2/2011
8/30/11 610 NS NA
10/3/2011
<f35 NS NA NS NA S im Ann ally
Note
GW(X al saretak fomJlyl4 2011 rso fGWDP
NS = NotReq ired and Not Sampled
NR-Req ired and Not Reported
NA = Not Appl cabl
E ceedan are show yell w
Val es n () parentheses are the f eld pH m asu em ts fo the ampled analyses