Station list     Available data
OHIO RIVER BASIN


03612500       OHIO RIVER AT LOCK AND DAM 53, NEAR GRAND CHAIN, IL

(National stream-quality accounting network station)


LOCATION.--Lat 37°12'11", long 89°02'30", Pulaski County, Hydrologic Unit 05140206, at auxiliary gaging station, 0.5 mi upstream from Gar Creek, 3.0 mi southwest of Grand Chain, 18.1 mi downstream from gaging station at Metropolis, and at mile 962.2.

DRAINAGE AREA.--203,100 mi2, approximately.

PERIOD OF RECORD.--Water years 1955 to current year.

PERIOD OF DAILY RECORD.--
SPECIFIC CONDUCTANCE: October 1954 to September 1970, January 1973 to September 1990.
WATER TEMPERATURES: October 1954 to September 1970, January 1973 to September 1990.

REMARKS.--Records of daily discharge are published for station at Metropolis, IL, (station 03611500). Flow regulated by many days dams and reservoirs.

EXTREMES FOR PERIOD OF DAILY RECORD.--
SPECIFIC CONDUCTANCE: Maximum daily, 693 microsiemens, Nov. 25, 1968; minimum daily, 170 microsiemens, Feb. 9, 1957, Jan. 21, 1973.
WATER TEMPERATURES: Maximum daily, 31.0C, July 15, 1964, July 17-21, 25, 1977; minimum daily, 0.0C, on several days during most winter months.
WATER-QUALITY DATA, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DIS- PH OXYGEN,
CHARGE, SPE- WATER DIS- HARD-
INST. CIFIC WHOLE SOLVED NESS CALCIUM
CUBIC CON- FIELD TEMPER- TUR- OXYGEN, (PER- TOTAL DIS-
SAMPLE FEET DUCT- (STAND- ATURE BID- DIS- CENT (MG/L SOLVED
DATE TIME TYPE PER ANCE ARD WATER ITY SOLVED SATUR- AS (MG/L
SECOND (US/CM) UNITS) (DEG C) (NTU) (MG/L) ATION) CACO3) AS CA)
(00061) (00095) (00400) (00010) (00076) (00300) (00301) (00900) (00915)
NOV
06... 1140 ENVIRONMENTAL -- 284 7.6 13.9 5.2 10.2 98 98 27
DEC
18... 1230 ENVIRONMENTAL 157000 310 8.1 6.5 10    11.7 94 120 34
JAN
20... 1310 ENVIRONMENTAL 582000 262 7.6 6.5 62    11.7 94 110 32
FEB
25... 1400 ENVIRONMENTAL 551000 244 7.5 8.5 27    12.2 124 100 29
25... 1410 REPLICATE -- -- --    --    28    --    -- 100 29
MAR
26... 1140 ENVIRONMENTAL 579000 269 --    9.9 41    11.2 98 110 32
APR
10... 1310 ENVIRONMENTAL 308000 304 7.7 14.1 26    9.7 94 130 35
23... 1350 ENVIRONMENTAL 734000 256 7.7 15.0 110    8.2 81 110 33
MAY
07... 1300 ENVIRONMENTAL 822000 235 7.6 17.0 35    9.6 100 100 30
21... 1340 ENVIRONMENTAL 339000 281 7.6 23.0 27    8.6 100 110 32
22... 1350 REPLICATE -- -- --    --    21    --    -- 120 33
JUN
04... 1340 ENVIRONMENTAL 366000 307 7.5 25.0 17    7.3 89 130 36
24... 1220 ENVIRONMENTAL 562000 303 7.4 25.0 62    5.9 71 120 34
JUL
22... 1300 ENVIRONMENTAL 260000 296 7.7 29.0 17    6.4 83 120 33
AUG
12... 1230 ENVIRONMENTAL 185000 250 7.7 28.0 24    6.4 81 100 29
26... 1150 ENVIRONMENTAL 125000 258 7.8 29.5 11    7.5 98 110 30
BICAR- ALKA- SOLIDS,
MAGNE- POTAS- BONATE LINITY CHLO- FLUO- SILICA, RESIDUE NITRO-
SIUM, SODIUM, SIUM, WATER WAT DIS RIDE, SULFATE RIDE, DIS- AT 180 NITRO- GEN
DIS- DIS- DIS- DIS IT TOT IT DIS- DIS- DIS- SOLVED DEG. C GEN, DIS-
SOLVED SOLVED SOLVED FIELD FIELD SOLVED SOLVED SOLVED (MG/L DIS- TOTAL SOLVED
DATE (MG/L (MG/L (MG/L MG/L AS MG/L AS (MG/L (MG/L (MG/L AS SOLVED (MG/L (MG/L
AS MG) AS NA) AS K) HCO3 CACO3 AS CL) AS SO4) AS F) SIO2) (MG/L) AS N) AS N)
(00925) (00930) (00935) (00453) (39086) (00940) (00945) (00950) (00955) (70300) (00600) (00602)
NOV
06... 7.6 14    2.3 86 71 13    26 .11 4.5 156 .74 .63
DEC
18... 9.0 17    2.7 90 74 21    56 .11 4.4 216 1.4   1.3  
JAN
20... 7.2 10    2.6 81 66 14    36 .16 5.3 178 2.0   1.6  
FEB
25... 6.8 9.1 1.8 80 66 11    34 <.10 5.5 158 1.5   1.3  
25... 6.8 9.2 1.8 -- -- 12    35 <.10 5.4 140 1.5   1.3  
MAR
26... 8.1 9.0 2.0 90 74 12    38 .11 4.8 167 1.9   1.5  
APR
10... 9.3 9.2 2.1 103 84 13    38 .11 4.5 186 2.1   2.0  
23... 7.2 7.1 2.3 95 78 9.7 30 .13 4.6 149 2.1   1.4  
MAY
07... 7.1 6.8 2.4 92 75 8.2 30 .12 5.0 154 1.4   1.2  
21... 8.1 7.2 2.2 104 85 9.3 31 .12 4.7 159 1.7   1.4  
22... 8.2 7.1 2.1 -- -- 9.2 31 .11 4.7 157 1.8   1.4  
JUN
04... 9.7 8.5 2.5 109 90 11    34 .14 5.2 178 2.2   2.0  
24... 9.3 9.0 3.8 97 79 11    37 .15 5.7 180 2.9   2.4  
JUL
22... 9.1 7.9 2.9 102 84 11    30 .15 5.1 171 1.7   1.5  
AUG
12... 7.2 7.6 2.7 96 78 10    24 .14 4.3 146 1.3   .89
26... 7.3 7.9 2.7 99 81 10    21 .14 3.7 148 .98 .81
NITRO- NITRO- NITRO- NITRO- NITRO- NITRO- NITRO- PHOS- NITRO-
NITRO- GEN, GEN, GEN, GEN, GEN, GEN,AM- GEN,AM- PHOS- PHATE, GEN,
GEN, ORGANIC NITRITE NO2+NO3 AMMONIA NITRATE MONIA + MONIA + PHOS- PHORUS ORTHO, AMMONIA
ORGANIC DIS- DIS- DIS- DIS- DIS- ORGANIC ORGANIC PHORUS DIS- DIS- DIS-
TOTAL SOLVED SOLVED SOLVED SOLVED SOLVED DIS. TOTAL TOTAL SOLVED SOLVED SOLVED
DATE (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L
AS N) AS N) AS N) AS N) AS N) AS N) AS N) AS N) AS P) AS P) AS PO4) AS NH4)
(00605) (00607) (00613) (00631) (00608) (00618) (00623) (00625) (00665) (00666) (00660) (71846)
NOV
06... .13 .03 .041 .446 .159 .405 .19 .29 .073 .036 .13 .20
DEC
18... --      --      .013 1.04   <.020 1.03   .24 .38 .079 .041 .12 --     
JAN
20... --      --      .018 1.40   <.020 1.38   .19 .62 .252 .028 .11 --     
FEB
25... .36 .16 <.010 1.09   .026 --        .18 .39 .141 .028 .09 .03
25... .34 .15 <.010 1.11   .032 --        .19 .38 .139 .024 .09 .04
MAR
26... .57 .21 <.010 1.29   .020 --        .23 .59 .197 .045 .12 .03
APR
10... .36 .20 .019 1.73   .043 1.71   .24 .40 .128 .046 .12 .06
23... --      --      .024 1.20   <.020 1.18   .22 .94 .446 .042 .15 --     
MAY
07... --      --      .014 .946 <.020 .932 .21 .47 .151 .023 .10 --     
21... .47 .18 .023 1.20   .047 1.18   .23 .51 .120 .015 .08 .06
22... .51 .17 .023 1.21   .039 1.18   .20 .55 .125 .020 .09 .05
JUN
04... .39 .20 .043 1.74   .026 1.70   .23 .42 .105 <.010 .74 .03
24... --      --      .013 2.16   <.020 2.14   .29 .77 .249 .053 .19 --     
JUL
22... .41 .19 .016 1.27   .020 1.25   .22 .44 .126 .024 .17 .03
AUG
12... .54 .10 .025 .753 .039 .728 .14 .58 .155 .040 .15 .05
26... .38 .21 .015 .564 .033 .549 .24 .41 .078 .039 .12 .04
NITRO- NITRO- PHOS-
GEN, GEN, PHORUS ALUM- ANTI- BERYL- CHRO-
NITRATE NITRITE ORTHO, INUM, MONY, ARSENIC BARIUM, LIUM, BORON, CADMIUM MIUM,
DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS-
SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED
DATE (MG/L (MG/L (MG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L
AS NO3) AS NO2) AS P) AS AL) AS SB) AS AS) AS BA) AS BE) AS B) AS CD) AS CR)
(71851) (71856) (00671) (01106) (01095) (01000) (01005) (01010) (01020) (01025) (01030)
NOV
06... 1.8 .13 .041 3.2 <1.0 <1 25 <1.0 50 <1.0 1.5
DEC
18... 4.6 .04 .038 3.2 <1.0 <1 34 <1.0 42 <1.0 <1.0
JAN
20... 6.1 .06 .036 5.9 <1.0 <1 31 <1.0 28 <1.0 2.1
FEB
25... --    --      .029 6.0 <1.0 <1 26 <1.0 20 <1.0 2.1
25... --    --      .029 5.8 <1.0 <1 26 <1.0 22 <1.0 1.9
MAR
26... --    --      .038 5.8 <1.0 <1 28 <1.0 24 <1.0 1.1
APR
10... 7.6 .06 .040 5.8 <1.0 <1 31 <1.0 26 <1.0 <1.0
23... 5.2 .08 .049 6.8 <1.0 <1 28 <1.0 28 <1.0 1.9
MAY
07... 4.1 .05 .032 6.5 <1.0 1 28 <1.0 24 <1.0 1.2
21... 5.2 .08 .025 6.9 <1.0 <1 32 <1.0 27 <1.0 1.1
22... 5.2 .08 .028 6.9 <1.0 <1 32 <1.0 27 <1.0 1.0
JUN
04... 7.5 .14 .242 5.2 <1.0 <1 34 <1.0 32 <1.0 1.7
24... 9.5 .04 .063 8.6 <1.0 <1 34 <1.0 35 <1.0 1.0
JUL
22... 5.5 .05 .054 7.1 <1.0 1 36 <1.0 38 <1.0 <1.0
AUG
12... 3.2 .08 .050 6.3 <1.0 <1 30 <1.0 34 <1.0 1.0
26... 2.4 .05 .038 6.0 <1.0 1 30 <1.0 42 <1.0 <1.0
MANGA- MOLYB- SELE- STRON-
COBALT, COPPER, IRON, LEAD, LITHIUM NESE, DENUM, NICKEL, NIUM, SILVER, TIUM,
DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS-
SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED
DATE (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L
AS CO) AS CU) AS FE) AS PB) AS LI) AS MN) AS MO) AS NI) AS SE) AS AG) AS SR)
(01035) (01040) (01046) (01049) (01130) (01056) (01060) (01065) (01145) (01075) (01080)
NOV
06... <1.0 1.0 <3.0 <1.0 <4 <1.0 2.4 <1.0 <1 <1.0 122
DEC
18... <1.0 1.5 10    <1.0 5 3.9 2.6 1.6 <1 <1.0 165
JAN
20... <1.0 1.7 12    <1.0 <4 1.5 1.4 1.9 <1 <1.0 139
FEB
25... <1.0 1.1 <10    <1.0 <4 1.7 <1.0 1.2 <1 <1.0 126
25... <1.0 1.1 <10    <1.0 <4 1.8 1.0 1.2 <1 <1.0 128
MAR
26... <1.0 1.2 12    <1.0 6 <1.0 1.2 1.2 <1 <1.0 135
APR
10... <1.0 1.3 <10    <1.0 <4 1.3 1.5 1.0 <1 <1.0 146
23... <1.0 1.5 <10    <1.0 <4 <1.0 1.2 1.2 <1 <1.0 131
MAY
07... <1.0 1.4 <10    <1.0 <4 <1.0 <1.0 1.1 <1 <1.0 126
21... <1.0 1.4 <10    <1.0 <4 1.0 1.3 1.1 <1 <1.0 124
22... <1.0 1.3 <10    <1.0 <4 <1.0 1.3 1.1 <1 <1.0 127
JUN
04... <1.0 1.6 <10    <1.0 <4 <1.0 1.5 1.3 <1 <1.0 142
24... <1.0 1.9 <10    <1.0 <4 <1.0 1.6 1.3 <1 <1.0 150
JUL
22... <1.0 1.5 <10    <1.0 <4 <1.0 1.9 1.2 <1 <1.0 133
AUG
12... <1.0 1.5 <10    <1.0 <4 <1.0 1.7 1.2 <1 <1.0 106
26... <1.0 1.5 <10    <1.0 <4 <1.0 2.2 1.2 <1 <1.0 114
CARBON,
VANA- URANIUM CARBON, ORGANIC ALA- ACETO- ATRA- BUTYL-
DIUM, ZINC, NATURAL ORGANIC SUS- CHLOR, CHLOR, ZINE, ALPHA ATE, CHLOR-
DIS- DIS- DIS- DIS- PENDED WATER, WATER WATER, BHC WATER, PYRIFOS
SOLVED SOLVED SOLVED SOLVED TOTAL DISS, FLTRD DISS, DIS- DISS, DIS-
DATE (UG/L (UG/L (UG/L (MG/L (MG/L REC, REC REC SOLVED REC SOLVED
AS V) AS ZN) AS U) AS C) AS C) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L)
(01085) (01090) (22703) (00681) (00689) (46342) (49260) (39632) (34253) (04028) (38933)
NOV
06... <6 2.7 <1.0 2.2 .20 <.002 .0053 .116 <.0020 <.0020 <.0040
DEC
18... <10 4.4 <1.0 2.6 .50 <.002 .0060 .088 <.0020 <.0020 E.0037
JAN
20... <10 1.8 <1.0 3.2 1.9   <.002 .0088 .099 <.0020 <.0020 <.0040
FEB
25... <10 1.6 <1.0 2.2 .90 <.002 <.0020 .041 <.0020 <.0020 <.0040
25... <10 6.6 <1.0 2.3 .90 <.002 <.0020 .045 <.0020 <.0020 <.0040
MAR
26... <10 1.6 <1.0 2.9 1.7   <.002 <.0020 .061 <.0020 <.0020 <.0040
APR
10... <10 <1.0 <1.0 2.7 .30 .005 .0065 .100 <.0020 <.0020 E.0037
23... <10 <1.0 <1.0 3.4 2.3   .008 .0677 .648 <.0020 <.0020 .0046
MAY
07... <10 3.0 <1.0 3.2 1.2   .014 .177   1.42   <.0020 <.0020 <.0040
21... <10 3.0 <1.0 3.7 1.2   <.010 .142   1.29   <.0020 <.0020 <.0040
22... <10 6.1 <1.0 3.3 1.2   .010 .160   1.48   <.0020 <.0020 <.0040
JUN
04... <10 6.9 <1.0 2.5 .70 .113 .766   4.18   <.0020 <.0020 E.0250
24... <10 2.3 <1.0 3.4 2.7   .079 .325   4.26   <.0020 <.0020 --         
JUL
22... <10 2.6 <1.0 3.2 2.4   .012 .0470 .747 <.0020 <.0020 <.0040
AUG
12... <10 1.7 <1.0 2.9 1.7   .007 .0168 .318 <.0020 <.0020 <.0040
26... <10 2.8 <1.0 2.9 .90 .007 .0110 .282 <.0020 <.0020 <.0040
DEETHYL
CYANA- ATRA- METRI-
ZINE, ZINE, DI- DI- FONOFOS MALA- BUZIN METO- PARA-
WATER, WATER, AZINON, ELDRIN WATER LINDANE THION, SENCOR LACHLOR P,P' THION,
DISS, DISS, DIS- DIS- DISS DIS- DIS- WATER WATER DDE DIS-
DATE REC REC SOLVED SOLVED REC SOLVED SOLVED DISSOLV DISSOLV DISSOLV SOLVED
(UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L)
(04041) (04040) (39572) (39381) (04095) (39341) (39532) (82630) (39415) (34653) (39542)
NOV
06... .0155 E.0078 <.002 <.001 <.0030 <.004 <.005 <.004 .027 <.0060 <.004
DEC
18... .0184 E.0240 .004 <.001 <.0030 <.004 <.005 <.004 .031 E.0023 <.004
JAN
20... .0288 E.0355 <.002 <.001 <.0030 <.004 <.005 <.004 .056 <.0060 <.004
FEB
25... .0107 E.0179 <.002 <.001 <.0030 <.004 <.005 <.004 .023 <.0060 <.004
25... .0113 E.0168 <.002 <.001 <.0030 <.004 <.005 <.004 .025 <.0060 <.004
MAR
26... .0175 E.0210 <.002 <.001 <.0030 <.004 <.005 <.004 .056 <.0060 <.004
APR
10... .0266 E.0275 <.002 <.001 <.0030 <.004 <.005 <.004 .055 <.0060 <.004
23... .113   E.0222 .009 <.001 <.0030 <.004 <.005 .018 .227 <.0060 <.004
MAY
07... .166   E.0445 .007 <.001 <.0030 <.004 <.005 .021 .434 <.0060 <.004
21... .197   E.0483 <.002 <.001 <.0030 <.004 <.005 .019 .464 <.0060 <.004
22... .258   E.0616 <.002 <.001 <.0030 <.004 <.005 .022 .564 <.0060 <.004
JUN
04... .713   E.149   .004 <.001 <.0030 <.004 <.005 .039 1.62   <.0060 <.004
24... .712   E.362   .008 <.001 <.0030 <.004 <.005 .050 2.14   <.0060 <.004
JUL
22... .162   E.154   <.002 <.001 <.0030 <.004 <.005 .015 .382 <.0060 <.004
AUG
12... .0638 E.0714 <.002 <.001 <.0030 <.004 <.005 <.004 .162 <.0060 <.004
26... .0557 E.0532 <.002 <.001 <.0030 <.004 <.005 <.004 .122 <.0060 <.004
BEN- CAR- CARBO- 2,6-DI- DISUL- ETHAL- PENDI-
PROP- PRO- SI- FLUR- BARYL FURAN DCPA ETHYL FOTON FLUR- METH-
CHLOR, METON, MAZINE, ALIN WATER WATER WATER ANILINE WATER ALIN ALIN
WATER, WATER, WATER, WAT FLD FLTRD FLTRD FLTRD WAT FLT FLTRD WAT FLT WAT FLT
DISS, DISS, DISS, 0.7 U 0.7 U 0.7 U 0.7 U 0.7 U 0.7 U 0.7 U 0.7 U
DATE REC REC REC GF, REC GF, REC GF, REC GF, REC GF, REC GF, REC GF, REC GF, REC
(UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L)
(04024) (04037) (04035) (82673) (82680) (82674) (82682) (82660) (82677) (82663) (82683)
NOV
06... <.0070 E.0095 .0156 <.0020 <.0030 <.0030 <.0020 <.0030 <.0170 <.0040 <.0040
DEC
18... <.0070 E.0088 .0197 <.0020 E.0043 <.0030 <.0020 <.0030 <.0170 <.0040 <.0040
JAN
20... <.0070 <.0180 .0216 <.0020 E.0036 <.0030 <.0020 <.0030 <.0170 <.0040 <.0040
FEB
25... <.0070 <.0180 .0116 <.0020 E.0037 <.0030 <.0020 <.0030 <.0170 <.0040 <.0040
25... <.0070 <.0180 .0128 <.0020 E.0039 <.0030 <.0020 <.0030 <.0170 <.0040 <.0040
MAR
26... <.0070 <.0180 .0175 <.0020 <.0030 <.0030 <.0020 <.0030 <.0170 <.0040 <.0040
APR
10... <.0070 <.0180 .0198 <.0020 <.0030 <.0030 <.0020 <.0030 <.0170 <.0040 <.0040
23... <.0070 E.0078 .159   <.0020 <.0030 <.0030 <.0020 <.0030 <.0170 <.0040 <.0040
MAY
07... <.0070 E.0130 .268   <.0020 <.0030 <.0030 <.0020 <.0030 <.0170 <.0040 <.0040
21... <.0070 E.0124 .174   <.0020 <.0030 <.0030 <.0020 <.0030 <.0170 <.0040 <.0040
22... <.0070 E.0120 .215   <.0020 <.0030 <.0030 <.0020 <.0030 <.0170 <.0040 <.0040
JUN
04... <.0070 E.0167 .304   <.0020 <.0030 E.0140 <.0020 <.0030 <.0170 <.0040 <.0040
24... <.0070 .0180 .264   <.0020 <.0030 E.0446 <.0020 <.0030 <.0170 <.0040 .0148
JUL
22... <.0070 .0210 .0584 <.0020 <.0030 <.0030 <.0020 <.0030 <.0170 <.0040 <.0040
AUG
12... <.0070 E.0150 .0320 <.0020 <.0030 <.0030 E.0032 <.0030 <.0170 <.0040 <.0040
26... <.0070 E.0160 .0254 <.0020 <.0030 <.0030 <.0020 <.0030 <.0170 <.0040 <.0040
ETHO- LIN- METHYL METHYL MOL- NAPROP- PEB- PER- PRON-
PROP EPTC URON AZIN- PARA- INATE AMIDE ULATE METHRIN PHORATE AMIDE
WATER WATER WATER PHOS THION WATER WATER WATER CIS WATER WATER
FLTRD FLTRD FLTRD WAT FLT WAT FLT FLTRD FLTRD FILTRD WAT FLT FLTRD FLTRD
0.7 U 0.7 U 0.7 U 0.7 U 0.7 U 0.7 U 0.7 U 0.7 U 0.7 U 0.7 U 0.7 U
DATE GF, REC GF, REC GF, REC GF, REC GF, REC GF, REC GF, REC GF, REC GF, REC GF, REC GF, REC
(UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L)
(82672) (82668) (82666) (82686) (82667) (82671) (82684) (82669) (82687) (82664) (82676)
NOV
06... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
DEC
18... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
JAN
20... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
FEB
25... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
25... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
MAR
26... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
APR
10... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
23... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
MAY
07... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
21... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
22... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
JUN
04... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
24... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
JUL
22... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
AUG
12... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
26... <.0030 <.0020 <.0020 <.0010 <.0060 <.0040 <.0030 <.0040 <.0050 <.0020 <.0030
PRO- PRO- TEBU- TER- TER- TRIAL- TRI- THIO- SEDI- SED.
PANIL PARGITE THIURON BACIL BUFOS LATE FLUR- BENCARB MENT, SUSP.
WATER WATER WATER WATER WATER WATER ALIN WATER SEDI- DIS- SIEVE
FLTRD FLTRD FLTRD FLTRD FLTRD FLTRD WAT FLT FLTRD MENT, CHARGE, DIAM.
0.7 U 0.7 U 0.7 U 0.7 U 0.7 U 0.7 U 0.7 U 0.7 U SUS- SUS- % FINER
DATE GF, REC GF, REC GF, REC GF, REC GF, REC GF, REC GF, REC GF, REC PENDED PENDED THAN
(UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L) (MG/L) (T/DAY) .062 MM
(82679) (82685) (82670) (82665) (82675) (82678) (82661) (82681) (80154) (80155) (70331)
NOV
06... <.0040 <.0130 .0140 <.0070 <.0130 <.0010 <.0020 <.0020 20 -- 93
DEC
18... <.0040 <.0130 <.0140 <.0070 <.0130 <.0010 <.0020 <.0020 22 9330 96
JAN
20... <.0040 <.0130 .0192 <.0070 <.0130 <.0010 <.0020 <.0020 172 270000 93
FEB
25... <.0040 <.0130 E.0087 <.0070 <.0130 <.0010 <.0020 <.0020 85 126000 86
25... <.0040 <.0130 E.0099 <.0070 <.0130 <.0010 <.0020 <.0020 -- -- --
MAR
26... <.0040 <.0130 .0141 <.0070 <.0130 <.0010 <.0020 <.0020 125 195000 94
APR
10... <.0040 <.0130 E.0090 <.0070 <.0130 <.0010 <.0020 <.0020 73 60700 98
23... <.0040 <.0130 E.0091 <.0070 <.0130 <.0010 <.0020 <.0020 210 416000 96
MAY
07... <.0040 <.0130 .0196 <.0070 <.0130 <.0010 <.0020 <.0020 79 175000 93
21... <.0040 <.0130 .0145 <.0070 <.0130 <.0010 <.0020 <.0020 80 73200 98
22... <.0040 <.0130 .0128 <.0070 <.0130 <.0010 <.0020 <.0020 -- -- --
JUN
04... <.0040 <.0130 .0120 <.0070 <.0130 <.0010 <.0020 <.0020 52 51400 99
24... <.0040 <.0130 .0137 <.0070 <.0130 <.0010 .0057 <.0020 190 288000 97
JUL
22... <.0040 <.0130 .0132 <.0070 <.0130 <.0010 <.0020 <.0020 95 66700 98
AUG
12... <.0040 <.0130 .0103 <.0070 <.0130 <.0010 <.0020 <.0020 59 29500 99
26... <.0040 <.0130 .0161 <.0070 <.0130 <.0010 <.0020 <.0020 38 12800 96


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data