Station list     Available data
ILLINOIS RIVER BASIN


05586100       ILLINOIS RIVER AT VALLEY CITY, IL

 

LOCATION.-- Lat 39°42'12", long 90°38'43" (NAD of 1927), in SE1/4NW1/4 sec.34, T.15 N., R.14 W., Scott County, Hydrologic Unit 07130011, on upstream side of Norfolk & Southern Corporation Railroad bridge at Flints Creek, 0.4 mi east of Valley City, 1.8 mi downstream from Mauvaise Terre Creek, and at mile 61.3.

 

DRAINAGE AREA.-- 26,743 mi2, does not include diversion from Lake Michigan through the Chicago Sanitary and Ship Canal, which has occurred since Jan. 17, 1900.

 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

 

DISCHARGE: October 1938 to current year. Prior to October 1960, at site 0.2 mi upstream at same datum. Prior to October 1989, published as "at Meredosia." Records are considered equivalent.

 

STAGE: Water years 1994-2002.

SURFACE-WATER QUALITY

 

CHEMICAL: Water years 1975-93 and 1996 to current.

 

SEDIMENT: February 1980 to current year.

 

SPECIFIC CONDUCTANCE: Water years 1975-81.

 

WATER TEMPERATURE: Water years 1975-81.

 

MISCELLANEOUS: Contaminants in streambed sediments, October 1996; contaminants in fish tissue, October 1996.

BIOLOGICAL

 

ALGAE: Water years 1980-81.

 

BENTHIC MACROINVERTEBRATES: Water years 1997-98.

 

FISH: Water year 1998.

 

HABITAT: Water years 1997 and 1998.

 

GAGE.-- U.S. Army Corps of Engineer's water-stage recorder, satellite telemeter and rain gage, crest-stage gage, and water-quality monitor. Datum of gage is 418.00 ft above NGVD of 1929 (levels by U.S. Army Corps of Engineers).

 

REMARKS.-- Occasional regulation at low flow by navigation dam at La Grange. Since Jan. 17, 1900, flow has included diversion from Lake Michigan through Chicago Sanitary and Ship Canal. Suspended-sediment samples were collected by a local observer twice weekly with additional samples collected during high runoff periods. Since February 1994, samples used to compute sediment record have been collected at upstream side Rt. 106 bridge at Florence at mile 56.

 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 123,000 ft3/s, May 26-28, 1943; maximum gage height, 28.61 ft, May 26, 1943; minimum daily discharge, 1,330 ft3/s, Sept. 2, 1984.

SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 3,720 mg/L, Apr. 14, 1981; minimum daily, 14 mg/L, Dec. 26, 1984, July 21, 1993.

SUSPENDED-SEDIMENT LOADS: Maximum daily, 410,000 tons, June 4, 1980; minimum daily, 172 tons, Sept. 2, 1984.

 

REMARKS FOR CURRENT YEAR.--Sampled as part of the Lower Illinois River Basin (LIRB) National Water Quality Assessment Program (NAWQA).

SURFACE-WATER QUALITY
DIS-OXYGEN,PHALKA-BICAR-
AGENCYAGENCYCHARGE,DIS-WATERSPE-LINITYBONATE
ANA-COL-INST.SOLVEDWHOLECIFICWAT DISWATER
LYZINGLECTINGCUBICOXYGEN,(PER-FIELDCON-TEMPER-TEMPER-TOT ITDIS IT
SAMPLESAMPLEGAGEFEETDIS-CENT(STAND-DUCT-ATUREATUREFIELDFIELD
(CODE(CODEHEIGHTPERSOLVEDSATUR-ARDANCEAIRWATERMG/L ASMG/L AS
NUMBER)NUMBER)(FEET)SECOND(MG/L)ATION)UNITS)(US/CM)(DEG C)(DEG C)CACO3HCO3
DateTime(00028)(00027)(00065)(00061)(00300)(00301)(00400)(00095)(00020)(00010)(39086)(00453)
OCT 2001
09...120080020817002.78103008.7908.268621.016.4162197
DEC
17...120080020817005.501740011.5978.37587.06.9230280
FEB 2002
20...115080020817008.872830010.7878.58307.05.2211247
APR
10...1000800208170010.213460010.2888.270816.59.1180220
MAY
08...1100800208170017.24498009.91058.359922.018.2161196
JUN
12...1010800208170016.08462006.1707.949126.522.2151184
JUL
17...103080020817003.1098507.7988.373432.027.7223272
AUG
15...102080020817002.7084506.7848.374527.027.5184220

CAR-NITRO-NITRO-NITRO-NITRO-ORTHO-2,6-DI-
BONATECHLO-GEN,GEN,AM-GEN,GEN,PHOS-ETHYLACETO-ALA-
WATERRIDE,SULFATEAMMONIAMONIA +NO2+NO3NITRITEPHATE,PHOS-ANILINECHLOR,CHLOR,ALPHA
DIS ITDIS-DIS-DIS-ORGANICDIS-DIS-DIS-PHORUSWAT FLTWATERWATER,BHC
FIELDSOLVEDSOLVEDSOLVEDTOTALSOLVEDSOLVEDSOLVEDTOTAL0.7 UFLTRDDISS,DIS-
MG/L AS(MG/L(MG/L(MG/L(MG/L(MG/L(MG/L(MG/L(MG/LGF, RECRECREC,SOLVED
CO3AS CL)AS SO4)AS N)AS N)AS N)AS N)AS P)AS P)(UG/L)(UG/L)(UG/L)(UG/L)
Date(00452)(00940)(00945)(00608)(00625)(00631)(00613)(00671)(00665)(82660)(49260)(46342)(34253)
OCT 2001
09...<180.360.0.11.841.82.025.26.41<.002.007<.002<.005
DEC
17...<162.371.2E.02.845.05.023.23.41<.002.010.007<.005
FEB 2002
20...586.364.8<.041.0  6.95.051.16.36<.006.027<.004<.005
APR
10...<161.160.6.041.0  6.51.034.14.40<.006.054.013<.005
MAY
08...<142.146.9<.041.2  6.44.067.09.28<.006.656.038<.005
JUN
12...<131.437.9.062.8  4.12.069.111.32<.0061.00  .019<.005
JUL
17...<159.666.0<.041.2  3.27.045.20.39<.006.092<.004<.005
AUG
15...280.874.8.081.0  1.39.065.30.46<.006.052<.004<.005

BEN-CAR-CARBO-DEETHYLDISUL-
ATRA-FLUR-BUTYL-BARYLFURANCYANA-DCPAATRA-FOTONEPTC
ZINE,ALINATE,WATERWATERCHLOR-ZINE,WATERZINE,DI-DI-WATERWATER
WATER,WAT FLDWATER,FLTRDFLTRDPYRIFOSWATER,FLTRDWATER,AZINON,ELDRINFLTRDFLTRD
DISS,0.7 UDISS,0.7 U0.7 UDIS-DISS,0.7 UDISS,DIS-DIS-0.7 U0.7 U
RECGF, RECRECGF, RECGF, RECSOLVEDRECGF, RECRECSOLVEDSOLVEDGF, RECGF, REC
(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)
Date(39632)(82673)(04028)(82680)(82674)(38933)(04041)(82682)(04040)(39572)(39381)(82677)(82668)
OCT 2001
09....123<.010<.002<.041<.020<.005<.018<.003E.020.043<.005<.02<.002
DEC
17....171<.010<.002<.041<.020<.005<.018<.003E.025.008<.005<.02<.002
FEB 2002
20....205<.010<.002<.041<.020<.005<.018<.003E.041.008<.005<.02<.002
APR
10....293<.010<.002<.041<.020<.005<.018<.003E.009E.004<.005<.02<.002
MAY
08...5.33  <.010<.002<.041<.020E.005<.018<.003E.218.006<.005<.02E.002
JUN
12...11.5    <.010<.002<.041E.012<.020<.020<.003E.365E.004<.005<.02<.002
JUL
17...1.27  <.010<.002<.041<.020<.005<.018<.003E.125.006<.005<.02<.002
AUG
15....644<.010<.002<.041<.020<.005<.018<.003E.066.008<.005<.02<.002

ETHAL-ETHO-LIN-METHYLMETHYLMOL-NAPROP-
FLUR-PROPURONAZIN-PARA-METRI-INATEAMIDE
ALINWATERFONOFOSWATERMALA-PHOSTHIONMETO-BUZINWATERWATER
WAT FLTFLTRDWATERLINDANEFLTRDTHION,WAT FLTWAT FLTLACHLORSENCORFLTRDFLTRDP,P'
0.7 U0.7 UDISSDIS-0.7 UDIS-0.7 U0.7 UWATERWATER0.7 U0.7 UDDE
GF, RECGF, RECRECSOLVEDGF, RECSOLVEDGF, RECGF, RECDISSDISSGF, RECGF, RECDISS
(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)
Date(82663)(82672)(04095)(39341)(82666)(39532)(82686)(82667)(39415)(82630)(82671)(82684)(34653)
OCT 2001
09...<.009<.005<.003<.004<.035<.027<.050<.006.055<.006<.002<.007<.003
DEC
17...<.009<.005<.003<.004<.035<.027<.050<.006.084<.006<.002<.007<.003
FEB 2002
20...<.009<.005<.003<.004<.035<.027<.050<.006.112<.006<.002<.007<.003
APR
10...<.009<.005<.003<.004<.035<.027<.050<.006.092<.006<.002<.007<.003
MAY
08...<.009<.005<.003<.004<.035<.027<.050<.0061.20  .011<.002<.007<.003
JUN
12...<.009<.005<.003<.004<.035<.027<.050<.0062.01  <.006<.002<.007<.003
JUL
17...<.009<.005<.003<.004<.035<.027<.050<.006.118<.006<.002<.007<.003
AUG
15...<.009<.005<.003<.004<.035<.027<.050<.006.046<.006<.002<.007<.003

PEB-PENDI-PER-PRON-PRO-PRO-TEBU-TER-
ULATEMETH-METHRINPHORATEPRO-AMIDEPROPA-PANILPARGITESI-THIURONBACIL
PARA-WATERALINCISWATERMETON,WATERCHLOR,WATERWATERMAZINE,WATERWATER
THION,FILTRDWAT FLTWAT FLTFLTRDWATER,FLTRDWATER,FLTRDFLTRDWATER,FLTRDFLTRD
DIS-0.7 U0.7 U0.7 U0.7 UDISS,0.7 UDISS,0.7 U0.7 UDISS,0.7 U0.7 U
SOLVEDGF, RECGF, RECGF, RECGF, RECRECGF, RECRECGF, RECGF, RECRECGF, RECGF, REC
(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)(UG/L)
Date(39542)(82669)(82683)(82687)(82664)(04037)(82676)(04024)(82679)(82685)(04035)(82670)(82665)
OCT 2001
09...<.007<.002<.010<.006<.011.03<.004<.010<.011<.02.120.02<.034
DEC
17...<.007<.002<.010<.006<.011E.01<.004<.010<.011<.02.035<.02<.034
FEB 2002
20...<.010<.004<.022<.006<.011E.01<.004.027<.011<.02.044<.02<.034
APR
10...<.010<.004<.022<.006<.011E.01<.004<.010<.011<.04.054<.02<.034
MAY
08...<.010<.004<.022<.006<.011E.01<.004<.010<.011<.02.189E.01<.034
JUN
12...<.010<.004<.022<.006<.011E.01<.004<.010<.011<.02.228<.02<.034
JUL
17...<.010<.004<.022<.006<.011.02<.004<.010<.011<.02.029<.02<.034
AUG
15...<.010<.004<.022<.006<.011.04<.004<.010<.011<.02.015.02<.034

TER-TER-THIO-TRIAL-TRI-SED.
BUFOSBUTHYL-BENCARBLATEFLUR-SUSP.
WATERAZINE,WATERWATERALINSIEVESEDI-
FLTRDWATER,FLTRDFLTRDWAT FLTDIAM.MENT,
0.7 UDISS,0.7 U0.7 U0.7 U% FINERSUS-
GF, RECRECGF, RECGF, RECGF, RECTHANPENDED
(UG/L)(UG/L)(UG/L)(UG/L)(UG/L).062 MM(MG/L)
Date(82675)(04022)(82681)(82678)(82661)(70331)(80154)
OCT 2001
09...<.02M<.005.003<.00999157
DEC
17...<.02U<.005.003<.00993200
FEB 2002
20...<.02U<.005.009<.00995241
APR
10...<.02--<.005.003<.00995269
MAY
08...<.02--<.005.005<.00995206
JUN
12...<.02--<.005<.002<.009991680
JUL
17...<.02--<.005<.002<.00998196
AUG
15...<.02--<.005<.002<.0099665
Remark codes: < -- Less than
E -- Estimated value
M -- Presence verified, not quantified
U -- Analyzed for, not detected

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data