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. Auxiliary gage 10.0 miles upstream.
 

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 to current year.

SURFACE-WATER QUALITY
 

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

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; sediment concentration and particle size, water years 1996-2003.

BIOLOGICAL
 

ALGAE: Water years 1980-81, 1997-98, and 2002-03.
 

BENTHIC MACROINVERTEBRATES: Water years 1997-98 and 2002.
 

FISH: Water year 1998 and 2003-04.
 

HABITAT: Water years 1997-98 and 2003.
 

GAGE.-- U.S. Army Corps of Engineer's water-stage recorder and satellite telemeter, 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). Prior to Nov. 25, 1992 and Oct. 1, 1994 to current; auxiliary gage (05585500) at site 10.0 mi upstream. Nov. 25, 1992 to Sept. 30, 1994; auxiliary gage operated at this site (05586100).
 

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
 
Alka- Bicar-
Dis- pH, Specif. linity, bonate,
Agency Agency Instan- solved water, conduc- wat flt wat flt
col- ana- taneous Dis- oxygen, unfltrd tance, Temper- Temper- inc tit incrm.
lecting lyzing Gage dis- solved percent field, wat unf ature, ature, field, titr.,
Date Time sample, sample, height, charge, oxygen, of sat- std uS/cm air, water, mg/L as field,
code code feet cfs mg/L uration units 25 degC deg C deg C CaCO3 mg/L
(00027) (00028) (00065) (00061) (00300) (00301) (00400) (00095) (00020) (00010) (39086) (00453)
OCT 2003
15... 1350 81700 80020 1.87 5170 12.8 136 7.8 805 20.5 18.0 194 230
DEC
02... 1215 81700 80020 8.27 28600 12.6 99 8.1 687 5.0 4.8 179 217
FEB 2004
25... 1130 81700 80020 5.00 16000 16.5 126 8.1 1050 2.5 3.5 208 E253
APR
07... 1300 81700 80020 10.90 39500 --    -- 7.8 760 22.0 13.1 200 241
MAY
13... 1215 81700 80020 4.61 15300 7.7 90 8.5 826 24.0 23.0 216 257
JUN
10... 1155 81700 80020 13.70 47400 --    -- 7.9 653 28.0 24.7 192 231
JUL
06... 1105 81700 80020 8.84 30100 5.7 71 8.0 667 24.5 26.5 204 244
AUG
03... 1145 81700 80020 2.73 7190 6.2 78 8.0 742 27.0 26.8 202 243
Carbon- Nitrite Ortho- Total 2,6-Di-
ate, + phos- nitro- ethyl-
wat flt Chlor- Ammonia nitrate Nitrite phate, Phos- gen, aniline Aceto- Ala-
incrm. ide, Sulfate water, water water, water, phorus, wat unf water CIAT, chlor, chlor,
titr., water, water, fltrd, fltrd, fltrd, fltrd, water, by anal fltrd water, water, water,
Date field, fltrd, fltrd, mg/L mg/L mg/L mg/L unfltrd ysis, 0.7u GF fltrd, fltrd, fltrd,
mg/L mg/L mg/L as N as N as N as P mg/L mg/L ug/L ug/L ug/L ug/L
(00452) (00940) (00945) (00608) (00631) (00613) (00671) (00665) (62855) (82660) (04040) (49260) (46342)
OCT 2003
15... 3 85.0 76.2 <.04 1.78 .025 .241 .45 2.85 <.006 E.032 .009 .007
DEC
02... <1 56.5 59.9 .06 6.06 .033 .193 .48 7.46 <.006 E.013 .015 .022
FEB 2004
25... <1 144    82.9 .08 5.33 .055 .247 .50 6.78 <.006 E.027 .080 <.080
APR
07... 1 75.5 53.9 <.04 7.39 .037 .133 .32 8.55 --        --        --        --       
MAY
13... 3 83.6 73.3 .14 5.14 .043 .149 .34 6.30 <.006 E.051 .114 .016
JUN
10... 2 51.7 40.6 <.04 6.90 .060 .144 .36 7.84 <.006 E.272 .430 .013
JUL
06... 2 57.8 51.6 E.03 3.20 .045 .199 .49 4.23 <.006 E.153 .069 <.005
AUG
03... 2 72.8 69.5 .07 1.77 .073 .220 .41 2.86 <.006 E.057 .069 <.005
Azin- Ben- cis-
phos- flur- Car- Carbo- Per-
alpha- Atra- methyl, alin, Butyl- baryl, furan, Chlor- methrin Cyana- DCPA, Diazi- Diel-
HCH, zine, water, water, ate, water, water, pyrifos water zine, water non, drin,
water, water, fltrd fltrd water, fltrd fltrd water, fltrd water, fltrd water, water,
Date fltrd, fltrd, 0.7u GF 0.7u GF fltrd, 0.7u GF 0.7u GF fltrd, 0.7u GF fltrd, 0.7u GF fltrd, fltrd,
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
(34253) (39632) (82686) (82673) (04028) (82680) (82674) (38933) (82687) (04041) (82682) (39572) (39381)
OCT 2003
15... <.005 .176 <.050 <.010 <.002 <.041 <.020 <.005 <.006 <.018 <.003 E.004 <.005
DEC
02... <.005 .160 <.050 <.010 <.004 <.041 <.020 <.005 <.006 <.018 <.003 .007 <.009
FEB 2004
25... <.005 .445 <.050 <.010 <.004 <.041 <.020 <.005 <.006 <.018 <.003 .019 <.009
APR
07... --        --        --        --        --        --        --        --        --        --        --        --        --       
MAY
13... <.005 .743 <.050 <.010 <.004 <.041 <.020 <.005 <.006 <.018 <.003 .018 <.009
JUN
10... <.005 4.86   <.050 <.010 <.004 <.041 E.137 <.005 <.006 <.018 <.003 .005 <.009
JUL
06... <.005 1.24   <.050 <.010 <.004 <.041 <.020 <.005 <.006 <.018 <.003 <.005 <.009
AUG
03... <.005 .478 <.050 <.010 <.004 <.041 <.020 <.005 <.006 <.018 <.003 <.005 <.009
Ethal- Methyl
Disul- flur- Etho- para- Moli- Naprop-
foton, EPTC, alin, prop, Linuron Mala- thion, Metola- Metri- nate, amide,
water, water, water, water, Fonofos Lindane water thion, water, chlor, buzin, water, water,
fltrd fltrd fltrd fltrd water, water, fltrd water, fltrd water, water, fltrd fltrd
Date 0.7u GF 0.7u GF 0.7u GF 0.7u GF fltrd, fltrd, 0.7u GF fltrd, 0.7u GF fltrd, fltrd, 0.7u GF 0.7u GF
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
(82677) (82668) (82663) (82672) (04095) (39341) (82666) (39532) (82667) (39415) (82630) (82671) (82684)
OCT 2003
15... <.02 <.002 <.009 <.005 <.003 <.004 <.035 <.027 <.006 .056 <.006 <.002 <.007
DEC
02... <.02 <.004 <.009 <.005 <.003 <.004 <.035 <.027 <.015 .080 <.006 <.003 <.007
FEB 2004
25... <.02 <.004 <.009 <.005 <.003 <.004 <.035 <.027 <.015 .210 <.006 <.003 <.007
APR
07... --      --        --        --        --        --        --        --        --        --        --        --        --       
MAY
13... <.02 <.004 <.009 <.005 <.003 <.004 <.035 <.027 <.015 .175 <.006 <.003 <.007
JUN
10... <.02 <.004 <.009 <.005 <.003 <.004 <.035 <.027 <.015 .834 <.010 <.003 <.007
JUL
06... <.02 <.004 <.009 <.005 <.003 <.004 <.035 <.027 <.015 .250 <.006 <.003 <.007
AUG
03... <.02 <.004 <.009 <.005 <.003 <.004 <.035 <.027 <.015 .060 <.006 <.003 <.007
Pendi-
Peb- meth- Propy- Pro- Propar- Tebu- Terba-
p,p'- Para- ulate, alin, Phorate Prome- zamide, Propa- panil, gite, Sima- thiuron cil,
DDE, thion, water, water, water ton, water, chlor, water, water, zine, water water,
water, water, fltrd fltrd fltrd water, fltrd water, fltrd fltrd water, fltrd fltrd
Date fltrd, fltrd, 0.7u GF 0.7u GF 0.7u GF fltrd, 0.7u GF fltrd, 0.7u GF 0.7u GF fltrd, 0.7u GF 0.7u GF
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
(34653) (39542) (82669) (82683) (82664) (04037) (82676) (04024) (82679) (82685) (04035) (82670) (82665)
OCT 2003
15... <.003 <.010 <.004 <.022 <.011 .02 <.004 <.010 <.011 <.02 <.010 E.01 <.034
DEC
02... <.003 <.010 <.004 <.022 <.011 .01 <.004 <.025 <.011 <.02 .083 E.01 <.034
FEB 2004
25... <.003 <.010 <.004 <.022 <.011 <.01 <.004 <.025 <.011 <.02 .033 <.02 <.034
APR
07... --        --        --        --        --        --      --        --        --        --      --        --      --       
MAY
13... <.003 <.010 <.004 <.022 <.011 .01 <.004 <.025 <.011 <.02 .024 <.02 <.034
JUN
10... <.003 <.010 <.004 <.022 <.011 .03 <.004 <.025 <.011 <.02 .042 <.02 <.034
JUL
06... <.003 <.010 <.004 <.022 <.011 .03 <.004 <.025 <.011 <.02 .043 E.01 <.034
AUG
03... <.005 <.010 <.004 <.022 <.011 .03 <.004 <.025 <.011 <.02 .018 E.01 <.034
Tri- Sus-
Terbu- Thio- Tri- flur- pended
fos, bencarb allate, alin, sedi-
water, water water, water, ment
fltrd fltrd fltrd fltrd concen-
Date 0.7u GF 0.7u GF 0.7u GF 0.7u GF tration
ug/L ug/L ug/L ug/L mg/L
(82675) (82681) (82678) (82661) (80154)
OCT 2003
15... <.02 <.005 <.002 <.009 122
DEC
02... <.02 <.010 .006 <.009 226
FEB 2004
25... <.02 <.010 .004 <.009 198
APR
07... --      --        --        --        166
MAY
13... <.02 <.010 <.002 <.009 182
JUN
10... <.02 <.010 <.002 <.009 177
JUL
06... <.02 <.010 <.002 <.009 322
AUG
03... <.02 <.010 <.002 <.009 153
Remark codes used in this table:
< -- Less than
E -- Estimated value
M -- Presence verified, not quantified


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data