Station list     Available data
ILLINOIS RIVER BASIN


05553500       ILLINOIS RIVER AT OTTAWA, IL

 

LOCATION.-- Lat 41°20'17", long 88°51'10" (NAD of 1927), in SW1/4SW1/4 sec.11, T.33 N., R.3 E., LaSalle County, Hydrologic Unit 07130001 downstream of the railroad bridge, 0.25 miles, and downstream 0.5 miles of the Route 23 bridge in Ottawa and the confluence with the Fox River.
 

DRAINAGE AREA.-- 10,949 mi2.
 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: March 11, 1903 to December 31, 1903.
 

PARTIAL RECORD: Miscellaneous discharge measurements, water years 1903-1904.

SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1997 to current.
 

MISCELLANEOUS: Contaminants in streambed sediments, August 1998; contaminants in fish tissue, August, 1998.

BIOLOGICAL
 

BENTHIC MACROINVERTEBRATES: Water years 1998 and 1999.
 

FISH: Water years 1998, 1999, and 2002.
 

HABITAT: Water years 1998 and 1999.
 

GAGE.-- Chain gage read twice daily. Prior to November 1, 1903, vertical staff at west end of first pier from the north abutment of the railroad bridge at same datum. Datum of gage is 579.48 ft above NGVD of 1929.
 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 46,900 ft3/s, Apr. 15, 1903, gage height, -119.08 ft (460.40 ft above NGVD of 1929); minimum discharge, 6,740 ft3/s, Sept. 8, 1903.
 

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, PH ALKA- BICAR- CAR-
AGENCY AGENCY CHARGE, DIS- WATER SPE- LINITY BONATE BONATE
ANA- COL- INST. SOLVED WHOLE CIFIC WAT DIS WATER WATER
LYZING LECTING CUBIC OXYGEN, (PER- FIELD CON- TEMPER- TEMPER- TOT IT DIS IT DIS IT
SAMPLE SAMPLE FEET DIS- CENT (STAND- DUCT- ATURE ATURE FIELD FIELD FIELD
(CODE (CODE PER SOLVED SATUR- ARD ANCE AIR WATER MG/L AS MG/L AS MG/L AS
NUMBER) NUMBER) SECOND (MG/L) ATION) UNITS) (US/CM) (DEG C) (DEG C) CACO3 HCO3 CO3
Date Time (00028) (00027) (00061) (00300) (00301) (00400) (00095) (00020) (00010) (39086) (00453) (00452)
OCT 2001
10... 0910 80020 81700 5510 9.8 101 8.2 781 18.0 15.8 162 198 <1
DEC
18... 1030 80020 81700 12800 12.2 104 8.2 819 5.5 7.4 217 264 <1
FEB 2002
21... 1020 80020 81700 21600 10.3 85 8.4 933 2.5 5.9 219 262 2
APR
11... 0815 80020 81700 33000 10.6 96 7.9 732 15.0 10.6 172 210 <1
MAY
09... 0940 80020 81700 15500 9.7 100 8.3 780 13.5 17.2 191 233 <1
JUN
11... 1100 80020 81700 16300 9.2 109 8.2 715 26.5 23.8 176 215 <1
JUL
16... 1050 80020 81700 1490 11.8 145 8.7 702 31.5 28.3 161 146 8
AUG
14... 1110 80020 81700 4970 7.7 99 8.1 692 24.5 28.3 165 198 2
NITRO- NITRO- NITRO- NITRO- ORTHO- 2,6-DI-
CHLO- GEN, GEN,AM- GEN, GEN, PHOS- ETHYL ACETO- ALA- ATRA-
RIDE, SULFATE AMMONIA MONIA + NO2+NO3 NITRITE PHATE, PHOS- ANILINE CHLOR, CHLOR, ALPHA ZINE,
DIS- DIS- DIS- ORGANIC DIS- DIS- DIS- PHORUS WAT FLT WATER WATER, BHC WATER,
SOLVED SOLVED SOLVED TOTAL SOLVED SOLVED SOLVED TOTAL 0.7 U FLTRD DISS, DIS- DISS,
(MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L GF, REC REC REC, SOLVED REC
AS CL) AS SO4) AS N) AS N) AS N) AS N) AS P) AS P) (UG/L) (UG/L) (UG/L) (UG/L) (UG/L)
Date (00940) (00945) (00608) (00625) (00631) (00613) (00671) (00665) (82660) (49260) (46342) (34253) (39632)
OCT 2001
10... 98.8 75.8 .07 1.1   3.27 .036 .45 .83 <.002 .191 <.002 <.005 .394
DEC
18... 73.5 81.7 .04 .71 5.10 5.17   .36 .41 <.002 .009 .017 <.005 .493
FEB 2002
21... 112    80.7 E.03 .91 5.92 .055 .30 .46 <.006 .042 <.004 <.005 .344
APR
11... 84.2 57.8 .09 1.3   6.03 .044 .18 .40 <.006 .057 .006 <.005 .155
MAY
09... 79.0 65.5 <.04 1.1   5.13 .041 .15 .30 <.006 .217 .006 <.005 .830
JUN
11... 67.4 55.8 E.03 1.2   4.90 .018 .15 .36 <.006 .517 .013 <.005 2.18  
JUL
16... 81.6 73.2 <.04 1.4   2.33 .067 .47 .68 <.006 .113 .009 <.005 .689
AUG
14... 72.2 71.4 <.04 .93 3.00 .048 .58 .70 <.006 .082 .009 <.005 .441
BEN- CAR- CARBO- DEETHYL DISUL- ETHAL-
FLUR- BUTYL- BARYL FURAN CYANA- DCPA ATRA- FOTON EPTC FLUR-
ALIN ATE, WATER WATER CHLOR- ZINE, WATER ZINE, DI- DI- WATER WATER ALIN
WAT FLD WATER, FLTRD FLTRD PYRIFOS WATER, FLTRD WATER, AZINON, ELDRIN FLTRD FLTRD WAT FLT
0.7 U DISS, 0.7 U 0.7 U DIS- DISS, 0.7 U DISS, DIS- DIS- 0.7 U 0.7 U 0.7 U
GF, REC REC GF, REC GF, REC SOLVED REC GF, REC REC SOLVED SOLVED 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) (UG/L) (UG/L)
Date (82673) (04028) (82680) (82674) (38933) (04041) (82682) (04040) (39572) (39381) (82677) (82668) (82663)
OCT 2001
10... <.010 <.002 E.021 <.020 <.005 <.018 <.003 E.020 .051 <.005 <.02 <.002 <.009
DEC
18... <.010 <.002 <.041 <.020 <.005 <.018 <.003 E.023 .014 <.005 <.02 .030 <.009
FEB 2002
21... <.010 <.002 E.007 <.020 <.005 <.018 <.003 E.027 .017 <.005 <.02 .027 <.009
APR
11... <.010 <.002 E.006 <.020 <.005 <.018 <.003 E.010 .012 <.005 <.02 <.002 <.009
MAY
09... <.010 <.002 <.041 <.020 <.005 <.018 <.003 E.036 .010 <.005 <.02 <.002 <.009
JUN
11... <.010 <.002 <.041 <.020 <.005 <.018 <.003 E.111 .016 <.005 <.02 <.002 <.009
JUL
16... <.010 <.002 <.041 <.020 <.005 <.018 <.003 E.055 .025 <.005 <.02 <.002 <.009
AUG
14... <.010 <.002 <.041 <.020 <.005 E.006 <.003 E.049 .013 <.005 <.02 <.002 <.009
ETHO- LIN- METHYL METHYL MOL- NAPROP-
PROP URON AZIN- PARA- METRI- INATE AMIDE
WATER FONOFOS WATER MALA- PHOS THION METO- BUZIN WATER WATER PARA-
FLTRD WATER LINDANE FLTRD THION, WAT FLT WAT FLT LACHLOR SENCOR FLTRD FLTRD P,P' THION,
0.7 U DISS DIS- 0.7 U DIS- 0.7 U 0.7 U WATER WATER 0.7 U 0.7 U DDE DIS-
GF, REC REC SOLVED GF, REC SOLVED GF, REC GF, REC DISS DISS GF, REC GF, REC DISS SOLVED
(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 (82672) (04095) (39341) (82666) (39532) (82686) (82667) (39415) (82630) (82671) (82684) (34653) (39542)
OCT 2001
10... <.005 <.003 <.004 <.035 <.027 <.050 <.006 .051 <.006 <.002 <.007 <.003 <.007
DEC
18... <.005 <.003 <.004 <.035 <.027 <.050 <.006 .245 <.006 <.002 <.007 <.003 <.007
FEB 2002
21... <.005 <.003 <.004 <.035 <.027 <.050 <.006 .117 <.006 <.002 <.007 <.003 <.010
APR
11... <.005 <.003 <.004 <.035 <.027 <.050 <.006 .096 <.006 <.002 <.007 <.003 <.010
MAY
09... <.005 <.003 <.004 <.035 <.027 <.050 <.006 .124 <.006 <.002 <.007 <.003 <.010
JUN
11... <.005 <.003 <.004 <.035 <.027 <.050 <.006 .572 <.006 <.002 <.007 <.003 <.010
JUL
16... <.005 <.003 <.004 <.035 <.027 <.050 <.006 .061 <.006 <.002 <.007 <.003 <.010
AUG
14... <.005 <.003 <.004 <.035 <.027 <.050 <.006 .035 <.006 <.002 <.007 <.003 <.010
PEB- PENDI- PER- PRON- PRO- PRO- TEBU- TER- TER-
ULATE METH- METHRIN PHORATE PRO- AMIDE PROPA- PANIL PARGITE SI- THIURON BACIL BUFOS
WATER ALIN CIS WATER METON, WATER CHLOR, WATER WATER MAZINE, WATER WATER WATER
FILTRD WAT FLT WAT FLT FLTRD WATER, FLTRD WATER, FLTRD FLTRD WATER, FLTRD FLTRD FLTRD
0.7 U 0.7 U 0.7 U 0.7 U DISS, 0.7 U DISS, 0.7 U 0.7 U DISS, 0.7 U 0.7 U 0.7 U
GF, REC GF, REC GF, REC GF, REC REC GF, REC REC GF, REC GF, REC 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) (UG/L) (UG/L)
Date (82669) (82683) (82687) (82664) (04037) (82676) (04024) (82679) (82685) (04035) (82670) (82665) (82675)
OCT 2001
10... <.002 <.010 <.006 <.011 .03 <.004 <.010 <.011 <.02 E.007 E.01 <.034 <.02
DEC
18... <.002 <.010 <.006 <.011 E.01 <.004 <.010 <.011 <.02 .028 <.02 <.034 <.02
FEB 2002
21... <.004 <.022 <.006 <.011 E.01 <.004 <.010 <.011 <.02 .013 <.02 <.034 <.02
APR
11... <.004 E.006 <.006 <.011 E.01 <.004 <.010 <.011 <.02 .027 <.02 <.034 <.02
MAY
09... <.004 <.022 <.006 <.011 E.01 <.004 <.010 <.011 <.02 .026 E.01 <.034 <.02
JUN
11... <.004 <.022 <.006 <.011 .02 <.004 <.010 <.011 <.02 .050 <.02 <.034 <.02
JUL
16... <.004 <.022 <.006 <.011 .05 <.004 <.010 <.011 <.02 .023 .08 <.034 <.02
AUG
14... <.004 <.022 <.006 <.011 .03 <.021 <.010 <.011 <.02 .021 <.02 <.034 <.02
TER- THIO- TRIAL- TRI- SED.
BUTHYL- BENCARB LATE FLUR- SUSP.
AZINE, WATER WATER ALIN SIEVE SEDI-
WATER, FLTRD FLTRD WAT FLT DIAM. MENT,
DISS, 0.7 U 0.7 U 0.7 U % FINER SUS-
REC GF, REC GF, REC GF, REC THAN PENDED
(UG/L) (UG/L) (UG/L) (UG/L) .062 MM (MG/L)
Date (04022) (82681) (82678) (82661) (70331) (80154)
OCT 2001
10... M <.005 .008 <.009 87 188
DEC
18... U <.005 .011 <.009 98 114
FEB 2002
21... U <.005 .022 <.009 97 150
APR
11... -- <.005 .035 E.003 94 172
MAY
09... -- <.005 .012 <.009 94 74
JUN
11... -- <.005 .005 <.009 95 119
JUL
16... -- <.005 .007 <.009 90 99
AUG
14... -- <.005 <.005 <.009 81 16
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