Station list     Available data
UPPER MISSISSIPPI RIVER BASIN


05587455       MISSISSIPPI RIVER BELOW GRAFTON, IL

 
(Ambient Water-Quality Monitoring Network Station)
 

LOCATION.-- Lat 38°57'04", long 90°22'16" (NAD of 1927), in sec.24, T.6 N., R.11 W., Jersey County, Hydrologic Unit 07110009, 11.3 mi above Lock and Dam 26, 19.0 mi above mouth of Missouri River, and at mile 214.6 upstream from the mouth of the Ohio River.
 

DRAINAGE AREA.-- 171,300 mi2, approximately.
 

PERIOD OF RECORD.--

SURFACE-WATER QUALITY
 

CHEMICAL: March 1989 to current year.
 

SEDIMENT: October 1989 to current year.
 

REMARKS.-- Ambient Water-Quality Monitoring Network station Nov. 1992 to current year. National Stream-Quality Accounting Network station September 1989 to October 1992. Discharge for sediment records obtained from Mississippi River at Grafton (05587450).
 

EXTREMES FOR PERIOD OF RECORD.--

SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 1,910 mg/L, May 23, 1990; minimum daily mean, 1 mg/L, Sept. 10, 1991.

SUSPENDED-SEDIMENT LOADS: Maximum daily, 1,090,000 tons, May 23, 1990; minimum daily, 186 tons, Sept. 10, 1991.
SURFACE-WATER QUALITY, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004  
Date
 Time
 Sample type
 Instan-
taneous
dis-
charge,
cfs
(00061)		 Turbid-
ity,
wat unf
lab,
Hach
2100AN
NTU
(99872)		 UV
absorb-
ance,
254 nm,
wat flt
units
/cm
(50624)		 UV
absorb-
ance,
280 nm,
wat flt
units
/cm
(61726)		 Dis-
solved
oxygen,
mg/L
(00300)		 Dis-
solved
oxygen,
percent
of sat-
uration
(00301)		 pH,
water,
unfltrd
field,
std
units
(00400)		 Specif.
conduc-
tance,
wat unf
µS/cm
25 degC
(00095)		 Temper-
ature,
water,
deg C
(00010)		 Hard-
ness,
water,
unfltrd
mg/L as
CaCO3
(00900)
OCT                        
22... 1310 Environmental 29,400 12 -- -- 10.6 112 8.5 487 17.6 210
NOV                        
12... 1225 Environmental 57,800 22 -- -- 11.8 108 8.0 521 10.4 210
12... 1226 Replicate -- -- -- -- -- -- -- -- -- 200
DEC                        
01... 1345 Environmental 66,800 34 -- -- 11.1 89 8.2 526 6.0 210
JAN                        
12... 1445 Environmental 43,400 42 0.117 0.086 15.4 111 8.4 569 1.7 260
FEB                        
23... 1340 Environmental 83,000 22 0.111 0.082 18.1 132 8.1 568 1.9 260
MAR                        
08... 1445 Environmental 224,000 320 0.179 0.136 9.7 81 7.8 476 7.2 190
APR                        
14... 1300 Environmental 167,000 51 0.165 0.123 9.2 87 8.0 420 12.3 170
14... 1301 Replicate -- -- 0.160 0.120 9.3 88 8.1 405 12.5 180
MAY                        
10... 1310 Environmental 92,200 21 0.135 0.099 9.9 112 8.5 409 20.7 210
JUN                        
14... 1315 Environmental 276,000 89 0.194 0.143 6.7 84 7.6 414 25.6 210
JUL                        
12... 1325 Environmental 159,000 30 0.194 0.140 7.0 90 8.0 485 27.0 220
12... 1326 Replicate -- -- 0.197 0.143 7.0 90 8.0 494 27.2 220
AUG                        
09... 1315 Environmental 90,100 97 0.176 0.128 6.8 84 8.0 524 25.3 230
SEP                        
20... 1345 Environmental 58,100 25 0.154 0.112 8.3 98 8.6 430 23.4 210
SURFACE-WATER QUALITY, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004  
Date
 Calcium
water,
fltrd,
mg/L
(00915)		 Magnes-
ium,
water,
fltrd,
mg/L
(00925)		 Potas-
sium,
water,
fltrd,
mg/L
(00935)		 Sodium,
water,
fltrd,
mg/L
(00930)		 ANC,
wat unf
fixed
end pt,
field,
mg/L as
CaCO3
(00410)		 ANC,
wat unf
incrm.
titr.,
field,
mg/L as
CaCO3
(00419)		 Bicar-
bonate,
wat unf
incrm.
titr.,
field,
mg/L
(00450)		 Carbon-
ate,
wat unf
incrm.
titr.,
field,
mg/L
(00447)		 Chlor-
ide,
water,
fltrd,
mg/L
(00940)		 Fluor-
ide,
water,
fltrd,
mg/L
(00950)		 Silica,
water,
fltrd,
mg/L
(00955)		 Sulfate
water,
fltrd,
mg/L
(00945)		 Residue
on
evap.
at
180degC
wat flt
mg/L
(70300)
OCT                          
22... 47.1 22.3 3.68 26.2 169 170 178 14 38.4 0.2 1.1 37.9 296
NOV                          
12... 46.5 21.8 4.02 26.7 165 167 203 <1 40.4 0.3 3.0 39.5 303
12... 46.3 21.6 4.04 26.6 -- -- -- -- 40.7 0.2 2.9 39.6 302
DEC                          
01... 47.9 20.7 4.01 18.1 154 156 191 <1 33.9 0.2 5.2 36.3 290
JAN                          
12... 63.3 25.5 3.32 23.3 188 190 228 2 38.5 0.2 5.8 41.6 329
FEB                          
23... 61.5 24.7 3.24 28.1 185 186 227 <1 48.4 0.2 6.0 41.5 364
MAR                          
08... 46.2 17.8 4.80 25.3 137 135 165 <1 42.5 0.2 7.8 34.8 288
APR                          
14... 40.3 16.1 3.46 14.8 128 129 157 <1 25.0 <0.2 6.3 25.7 237
14... 43.6 18.2 3.36 17.5 -- -- -- -- 30.5 <0.2 6.1 29.5 263
MAY                          
10... 47.8 21.6 3.06 19.9 149 149 169 6 34.6 0.2 0.6 36.1 287
JUN                          
14... 50.9 19.7 3.56 14.6 157 161 196 <1 27.9 0.2 9.0 26.6 274
JUL                          
12... 52.9 20.2 3.30 11.3 153 155 189 <1 21.9 0.2 10.0 32.5 286
12... 53.9 20.3 3.30 11.5 -- -- -- -- 22.4 0.2 10.0 32.6 284
AUG                          
09... 53.1 22.5 3.39 16.3 161 164 201 <1 29.0 0.3 8.5 42.0 303
SEP                          
20... 48.5 22.3 3.53 17.0 154 154 181 3 26.3 0.2 1.4 32.4 252
   
Date
 Residue
total
at 105
deg. C,
sus-
pended,
mg/L
(00530)		 Ammonia
+
org-N,
water,
unfltrd
mg/L
as N
(00625)		 Ammonia
water,
fltrd,
mg/L
as N
(00608)		 Nitrite
+
nitrate
water
fltrd,
mg/L
as N
(00631)		 Nitrite
water,
fltrd,
mg/L
as N
(00613)		 Ortho-
phos-
phate,
water,
fltrd,
mg/L
as P
(00671)		 Partic-
ulate
nitro-
gen,
susp,
water,
mg/L
(49570)		 Phos-
phorus,
water,
fltrd,
mg/L
(00666)		 Phos-
phorus,
water,
unfltrd
mg/L
(00665)		 Total
carbon,
suspnd
sedimnt
total,
mg/L
(00694)		 Inor-
ganic
carbon,
suspnd
sedimnt
total,
mg/L
(00688)		 Organic
carbon,
suspnd
sedimnt
total,
mg/L
(00689)		 Organic
carbon,
water,
fltrd,
mg/L
(00681)
OCT                          
22... 19 0.96 <0.04 0.39 0.008 0.08 -- 0.10 0.19 -- -- -- --
NOV                          
12... 29 0.78 0.08 0.95 0.020 0.12 -- 0.16 0.20 -- -- -- --
12... 29 0.93 0.08 0.94 0.018 0.12 -- 0.17 0.23 -- -- -- --
DEC                          
01... 42 0.87 0.08 2.71 0.020 0.10 -- 0.14 0.21 -- -- -- --
JAN                          
12... 60 1.1 <0.04 3.54 0.021 0.06 0.47 0.09 0.22 3.6 <0.1 3.6 5.1
FEB                          
23... 28 0.88 0.07 2.65 0.021 0.06 0.29 0.08 0.18 1.9 <0.1 1.8 4.9
MAR                          
08... 597d 2.7 0.33 3.06 0.030 0.11 1.51 0.14 0.81 14.2 0.2 14.0 6.9
APR                          
14... 158d 1.3 <0.04 0.80 0.011 <0.02 0.69 0.07 0.30 5.0 0.2 4.8 5.8
14... 134d 1.6 E.04n 2.85 0.019 0.05 0.53 0.07 0.30 4.1 <0.1 4.0 5.6
MAY                          
10... 55 1.1 <0.04 2.65 0.026 0.07 0.57 0.07 0.19 3.0 <0.1 3.0 5.1
JUN                          
14... 166d 1.2 <0.04 5.05d 0.077 0.12 0.38 0.14 0.35 3.5 <0.1 3.4 6.4
JUL                          
12... 72 0.96 <0.04 4.79 0.040 0.09 0.60 0.12 0.22 3.8 <0.1 3.7 6.3
12... 66 1.0 <0.04 4.77 0.038 0.09 0.42 0.12 0.22 2.2 <0.1 2.2 7.0
AUG                          
09... 146d 1.0 <0.04 2.98 0.088 0.10 0.43 0.14 0.33 3.0 0.2 2.8 5.5
SEP                          
20... <10 0.98 <0.04 0.82 0.027 0.07 0.45 0.11 0.20 3.0 <0.1 3.0 5.2
SURFACE-WATER QUALITY, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004  
Date
 Pheo-
phytin
a,
phyto-
plank-
ton,
µg/L
(62360)		 E coli,
m-TEC
MF,
water,
col/
100 mL
(31633)		 Fecal
coli-
form,
M-FC
0.7µ MF
col/
100 mL
(31625)		 Fecal
strep-
tococci
KF
MF,
col/
100 mL
(31673)		 Chloro-
phyll a
phyto-
plank-
ton,
fluoro,
µg/L
(70953)		 Alum-
inum,
water,
fltrd,
µg/L
(01106)		 Alum-
inum,
water,
unfltrd
recover
-able,
µg/L
(01105)		 Cadmium
water,
fltrd,
µg/L
(01025)		 Cadmium
water,
unfltrd
µg/L
(01027)		 Copper,
water,
fltrd,
µg/L
(01040)		 Iron,
water,
fltrd,
µg/L
(01046)		 Lead,
water,
fltrd,
µg/L
(01049)		 Lead,
water,
unfltrd
recover
-able,
µg/L
(01051)
OCT                          
22... -- 1k 6k 13k -- -- -- -- -- -- -- -- --
NOV                          
12... -- 27 46 21 -- -- -- -- -- -- -- -- --
12... -- 33 33 18k -- -- -- -- -- -- -- -- --
DEC                          
01... -- 34 22 18k -- 4 539 E.04n 0.08 2.6 6 E.07n 1.70
JAN                          
12... 17.2 11k 42 69 34.6 -- -- -- -- -- -- -- --
FEB                          
23... E8.0 13k 10k 51 E14.1 -- -- -- -- -- -- -- --
MAR                          
08... 46.2 60k 170k 500 41.8 2 5,390d E.03n 0.32 2.4 11 E.07n 10.5
APR                          
14... 28.6 21 17k 2k 24.7 -- -- -- -- -- -- -- --
14... 26.9 -- -- -- 22.8 -- -- -- -- -- -- -- --
MAY                          
10... 25.7 22 58 1k 49.1 3 519 E.02n 0.07 1.6 E4n E.06n 1.10
JUN                          
14... 11.6 200k 350 25k 10.1 -- -- -- -- -- -- -- --
JUL                          
12... 18.0 49 31 45 29.7 6 931 <0.04 0.07 1.7 E4n 0.11 1.60
12... 34.0 54 40 58 87.4 3 964 <0.04 0.06 1.9 E5n <0.08 1.69
AUG                          
09... 12.8 120 110 10k 14.4 -- -- -- -- -- -- -- --
SEP                          
20... 19.5 23 24 3k E45.6 -- -- -- -- -- -- -- --
   
Date
 Mangan-
ese,
water,
fltrd,
µg/L
(01056)		 Mercury
water,
unfltrd
recover
-able,
µg/L
(71900)		 Zinc,
water,
fltrd,
µg/L
(01090)		 Zinc,
water,
unfltrd
recover
-able,
µg/L
(01092)		 2,6-Di-
ethyl-
aniline
water
fltrd
0.7µ GF
µg/L
(82660)		 CIAT,
water,
fltrd,
µg/L
(04040)		 Aceto-
chlor,
water,
fltrd,
µg/L
(49260)		 Ala-
chlor,
water,
fltrd,
µg/L
(46342)		 alpha-
HCH,
water,
fltrd,
µg/L
(34253)		 Atra-
zine,
water,
fltrd,
µg/L
(39632)		 Azin-
phos-
methyl,
water,
fltrd
0.7µ GF
µg/L
(82686)		 Ben-
flur-
alin,
water,
fltrd
0.7µ GF
µg/L
(82673)		 Butyl-
ate,
water,
fltrd,
µg/L
(04028)
OCT                          
22... -- -- -- -- -- -- -- -- -- -- -- -- --
NOV                          
12... -- -- -- -- -- -- -- -- -- -- -- -- --
12... -- -- -- -- -- -- -- -- -- -- -- -- --
DEC                          
01... 5.8 <0.02 4 9 -- -- -- -- -- -- -- -- --
JAN                          
12... -- -- -- -- E.003t E.053 0.039 0.009 <0.005 0.219 <0.050 <0.010 <0.002
FEB                          
23... -- -- -- -- <0.006 E.045 0.051 0.020 <0.005 0.152 <0.050 <0.010 <0.002
MAR                          
08... 5.2 0.03 1 39 <0.006 E.044 0.049 <0.004 <0.005 0.180 <0.050 <0.010 <0.002
APR                          
14... -- -- -- -- <0.006 E.013 0.063 0.009 <0.005 0.120 <0.050 <0.010 <0.002
14... -- -- -- -- <0.006 E.018 0.066 0.009 <0.005 0.118 <0.050 <0.010 <0.002
MAY                          
10... 3.9 <0.02 1 6 <0.006 E.020 0.099 0.010 <0.005 0.474 <0.050 <0.010 <0.002
JUN                          
14... -- -- -- -- <0.006 E.129 0.304 0.016 <0.005 2.25 <0.050 <0.010 <0.002
JUL                          
12... 1.0 <0.02 3 7 <0.006 E.133 0.095 0.011 <0.005 1.15 <0.050 <0.010 <0.002
12... 0.9 <0.02 1 7 <0.006 E.133 0.095 0.011 <0.005 1.15 <0.050 <0.010 <0.002
AUG                          
09... -- -- -- -- <0.006 E.039 0.076 <0.004 <0.005 0.480 <0.050 <0.010 <0.002
SEP                          
20... -- -- -- -- <0.006 E.039 0.021 <0.004 <0.005 0.220 <0.050 <0.010 <0.002
SURFACE-WATER QUALITY, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004  
Date
 Car-
baryl,
water,
fltrd
0.7µ GF
µg/L
(82680)		 Carbo-
furan,
water,
fltrd
0.7µ GF
µg/L
(82674)		 Chlor-
pyrifos
water,
fltrd,
µg/L
(38933)		 cis-
Per-
methrin
water
fltrd
0.7µ GF
µg/L
(82687)		 Cyana-
zine,
water,
fltrd,
µg/L
(04041)		 DCPA,
water
fltrd
0.7µ GF
µg/L
(82682)		 Diazi-
non,
water,
fltrd,
µg/L
(39572)		 Diel-
drin,
water,
fltrd,
µg/L
(39381)		 Disul-
foton,
water,
fltrd
0.7µ GF
µg/L
(82677)		 EPTC,
water,
fltrd
0.7µ GF
µg/L
(82668)		 Ethal-
flur-
alin,
water,
fltrd
0.7µ GF
µg/L
(82663)		 Etho-
prop,
water,
fltrd
0.7µ GF
µg/L
(82672)		 Fonofos
water,
fltrd,
µg/L
(04095)
OCT                          
22... -- -- -- -- -- -- -- -- -- -- -- -- --
NOV                          
12... -- -- -- -- -- -- -- -- -- -- -- -- --
12... -- -- -- -- -- -- -- -- -- -- -- -- --
DEC                          
01... -- -- -- -- -- -- -- -- -- -- -- -- --
JAN                          
12... <0.041 <0.020 <0.005 <0.006 <0.018 <0.003 <0.005 <0.005 <0.02 <0.002 <0.009 <0.005 <0.003
FEB                          
23... <0.041 <0.020 <0.005 <0.006 <0.018 <0.003 <0.005 <0.005 <0.02 <0.002 <0.009 <0.005 <0.003
MAR                          
08... <0.041 <0.020 <0.005 <0.006 <0.018 <0.003 <0.005 <0.005 <0.02 <0.002 <0.009 <0.005 <0.003
APR                          
14... <0.041 <0.020 <0.005 <0.006 <0.018 <0.003 <0.005 <0.005 <0.02 <0.002 <0.009 <0.005 <0.003
14... <0.041 <0.020 <0.005 <0.006 <0.018 <0.003 <0.005 <0.005 <0.02 <0.002 <0.009 <0.005 <0.003
MAY                          
10... <0.041 <0.020 <0.005 <0.006 <0.018 <0.003 <0.005 <0.005 <0.02 <0.002 <0.009 <0.005 <0.003
JUN                          
14... <0.041 <0.020 <0.005 <0.006 <0.018 <0.003 <0.005 <0.005 <0.02 <0.002 <0.009 <0.005 <0.003
JUL                          
12... <0.041 <0.020 <0.005 <0.006 <0.018 <0.003 <0.005 <0.005 <0.02 <0.002 <0.009 <0.005 <0.003
12... <0.041 <0.020 <0.005 <0.006 <0.018 <0.003 <0.005 <0.005 <0.02 <0.002 <0.009 <0.005 <0.003
AUG                          
09... <0.041 <0.020 <0.005 <0.006 <0.018 <0.003 <0.005 <0.005 <0.02 <0.002 <0.009 <0.005 <0.003
SEP                          
20... <0.041 <0.020 <0.005 <0.006 <0.018 <0.003 <0.005 <0.005 <0.02 <0.002 <0.009 <0.005 <0.003
   
Date
 Lindane
water,
fltrd,
µg/L
(39341)		 Linuron
water
fltrd
0.7µ GF
µg/L
(82666)		 Mala-
thion,
water,
fltrd,
µg/L
(39532)		 Methyl
para-
thion,
water,
fltrd
0.7µ GF
µg/L
(82667)		 Metola-
chlor,
water,
fltrd,
µg/L
(39415)		 Metri-
buzin,
water,
fltrd,
µg/L
(82630)		 Moli-
nate,
water,
fltrd
0.7µ GF
µg/L
(82671)		 Naprop-
amide,
water,
fltrd
0.7µ GF
µg/L
(82684)		 p,p-'
DDE,
water,
fltrd,
µg/L
(34653)		 Para-
thion,
water,
fltrd,
µg/L
(39542)		 Peb-
ulate,
water,
fltrd
0.7µ GF
µg/L
(82669)		 Pendi-
meth-
alin,
water,
fltrd
0.7µ GF
µg/L
(82683)		 Phorate
water
fltrd
0.7µ GF
µg/L
(82664)
OCT                          
22... -- -- -- -- -- -- -- -- -- -- -- -- --
NOV                          
12... -- -- -- -- -- -- -- -- -- -- -- -- --
12... -- -- -- -- -- -- -- -- -- -- -- -- --
DEC                          
01... -- -- -- -- -- -- -- -- -- -- -- -- --
JAN                          
12... <0.004 <0.035 <0.027 <0.006 0.048 <0.006 <0.002 <0.007 <0.003 <0.010 <0.004 <0.022 <0.011
FEB                          
23... <0.004 <0.035 <0.027 <0.006 0.022 <0.006 <0.002 <0.007 <0.003 <0.010 <0.004 <0.022 <0.011
MAR                          
08... <0.004 <0.035 <0.027 <0.060 0.139 <0.006 <0.002 <0.007 <0.003 <0.010 <0.004 <0.022 <0.011
APR                          
14... <0.004 <0.035 <0.027 <0.006 0.088 <0.006 <0.002 <0.007 <0.005 <0.010 <0.004 <0.022 <0.011
14... <0.004 <0.035 <0.027 <0.006 0.090 <0.006 <0.002 <0.007 <0.005 <0.010 <0.004 <0.022 <0.011
MAY                          
10... <0.004 <0.035 <0.027 <0.006 0.109 <0.006 <0.002 <0.007 <0.003 <0.010 <0.004 <0.022 <0.011
JUN                          
14... <0.004 <0.035 <0.027 <0.006 0.547 <0.010 <0.002 <0.007 <0.005 <0.010 <0.004 <0.022 <0.011
JUL                          
12... <0.004 <0.035 <0.027 <0.006 0.220 <0.006 <0.002 <0.007 <0.003 <0.010 <0.004 <0.022 <0.011
12... <0.004 <0.035 <0.027 <0.006 0.220 <0.006 <0.002 <0.007 <0.003 <0.010 <0.004 <0.022 <0.011
AUG                          
09... <0.004 <0.035 <0.027 <0.006 0.057 <0.006 <0.002 <0.007 <0.003 <0.010 <0.004 <0.022 <0.011
SEP                          
20... <0.004 <0.035 <0.027 <0.006 0.040 <0.006 <0.002 <0.007 <0.003 <0.010 <0.004 <0.022 <0.011
SURFACE-WATER QUALITY, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004  
Date
 Prome-
ton,
water,
fltrd,
µg/L
(04037)		 Pron-
amide,
water,
fltrd
0.7µ GF
µg/L
(82676)		 Propa-
chlor,
water,
fltrd,
µg/L
(04024)		 Pro-
panil,
water,
fltrd
0.7µ GF
µg/L
(82679)		 Propar-
gite,
water,
fltrd
0.7µ GF
µg/L
(82685)		 Sima-
zine,
water,
fltrd,
µg/L
(04035)		 Tebu-
thiuron
water
fltrd
0.7µ GF
µg/L
(82670)		 Terba-
cil,
water,
fltrd
0.7µ GF
µg/L
(82665)		 Terbu-
fos,
water,
fltrd
0.7µ GF
µg/L
(82675)		 Thio-
bencarb
water
fltrd
0.7µ GF
µg/L
(82681)		 Tri-
allate,
water,
fltrd
0.7µ GF
µg/L
(82678)		 Tri-
flur-
alin,
water,
fltrd
0.7µ GF
µg/L
(82661)
OCT                        
22... -- -- -- -- -- -- -- -- -- -- -- --
NOV                        
12... -- -- -- -- -- -- -- -- -- -- -- --
12... -- -- -- -- -- -- -- -- -- -- -- --
DEC                        
01... -- -- -- -- -- -- -- -- -- -- -- --
JAN                        
12... E.01n <0.004 <0.010 <0.011 <0.02 0.047 <0.02 <0.034 <0.02 <0.005 <0.002 <0.009
FEB                        
23... E.01n <0.004 <0.010 <0.011 <0.02 0.083 <0.02 <0.034 <0.02 <0.005 <0.002 <0.009
MAR                        
08... 0.02 <0.004 <0.010 <0.011 <0.02 0.068 <0.02 <0.034 <0.02 <0.005 <0.002 <0.009
APR                        
14... E.01n <0.004 <0.010 <0.011 <0.02 0.021 <0.02 <0.034 <0.02 <0.005 <0.002 <0.009
14... E.01n <0.004 <0.010 <0.011 <0.02 0.021 <0.02 <0.034 <0.02 <0.005 <0.002 <0.009
MAY                        
10... E.01n <0.004 <0.010 <0.011 <0.02 0.023 <0.02 <0.034 <0.02 <0.005 <0.002 <0.009
JUN                        
14... E.01n <0.004 <0.010 <0.011 <0.02 0.028 <0.02 <0.034 <0.02 <0.005 <0.002 <0.009
JUL                        
12... E.01n <0.004 <0.010 <0.011 <0.02 0.023 <0.02 <0.034 <0.02 <0.005 <0.002 <0.009
12... E.01n <0.004 <0.010 <0.011 <0.02 0.023 <0.02 <0.034 <0.02 <0.005 <0.002 <0.009
AUG                        
09... 0.03 <0.004 <0.010 <0.011 <0.02 0.014 <0.02 <0.034 <0.02 <0.005 <0.002 <0.009
SEP                        
20... E.01n <0.004 <0.010 <0.011 <0.02 0.018 <0.02 <0.034 <0.02 <0.005 <0.002 <0.009
     

Remark codes used in this table:
< -- Less than
E -- Estimated value



Value qualifier codes used in this table:
d -- Diluted sample: method hi range exceeded
k -- Counts outside acceptable range
n -- Below the LRL and above the LT-MDL
t -- Below the long-term MDL

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data