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 year.
 

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

BIOLOGICAL
 

BENTHIC MACROINVERTEBRATES: Water years 1998-99, and 2002.
 

FISH: Water years 1998-99, and 2002-03.
 

HABITAT: Water years 1998-99.
 

GAGE.-- Prior to November 1, 1903, vertical staff at west end of first pier from the north abutment of the railroad bridge at same datum. November 1, 1903 to February 21, 1904, chain gage read twice daily. 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
 
Alka- Bicar- Carbon-
Dis- pH, Specif. linity, bonate, ate,
Agency Agency Instan- solved water, conduc- wat flt wat flt wat flt
ana- col- taneous Dis- oxygen, unfltrd tance, Temper- Temper- inc tit incrm. incrm.
lyzing lecting dis- solved percent field, wat unf ature, ature, field, titr., titr.,
Date Time sample, sample, charge, oxygen, of sat- std uS/cm air, water, mg/L as field, field,
code code cfs mg/L uration units 25 degC deg C deg C CaCO3 mg/L mg/L
(00028) (00027) (00061) (00300) (00301) (00400) (00095) (00020) (00010) (39086) (00453) (00452)
OCT 2002
15... 1135 80020 81700 E1450 12.8 128 8.7 779 16.0 13.2 173 204 4
DEC
17... 1120 80020 81700 E3310 14.4 107 8.5 1000 .0 3.1 180 214 2
FEB 2003
19... 0950 80020 81700 E6600 15.6 110 8.3 1330 .5 1.0 222 269 E1
APR
09... 1220 80020 81700 E12100 12.6 105 8.0 988 10.0 8.2 175 211 2
MAY
13... 1210 80020 81700 E28500 9.7 98 7.9 700 21.0 15.8 157 188 1
JUN
12... 0950 80020 81700 E6750 8.9 100 8.3 890 19.5 21.2 188 223 3
JUL
02... 1015 80020 81700 E5250 9.5 120 8.4 835 28.5 27.7 180 212 4
AUG
19... 1100 80020 81700 E4000 6.9 90 8.4 743 27.5 28.9 170 201 3
Ammonia Nitrite Ortho- 2,6-Di-
+ + phos- ethyl-
Chlor- Ammonia org-N, nitrate Nitrite phate, Phos- aniline Aceto- Ala- alpha- Atra-
ide, Sulfate water, water, water water, water, phorus, water chlor, chlor, HCH, zine,
water, water, fltrd, unfltrd fltrd, fltrd, fltrd, water, fltrd water, water, water, water,
Date fltrd, fltrd, mg/L mg/L mg/L mg/L mg/L unfltrd 0.7u GF fltrd, fltrd, fltrd, fltrd,
mg/L mg/L as N as N as N as N as P mg/L ug/L ug/L ug/L ug/L ug/L
(00940) (00945) (00608) (00625) (00631) (00613) (00671) (00665) (82660) (49260) (46342) (34253) (39632)
OCT 2002
15... 98.8 67.7 <.04 .92 3.03 .041 .49 .60 <.006 <.006 .008 <.005 .090
DEC
17... 125    101    .17 1.1   4.68 .066 .71 .89 <.006 <.006 <.004 <.005 .088
FEB 2003
19... 206    99.6 .34 1.3   4.69 .087 .65 .77 <.006 .068 <.004 <.005 .407
APR
09... 162    76.3 .27 1.3   4.05 .087 .33 .54 <.006 .091 .052 <.005 .236
MAY
13... 77.7 56.4 .06 1.9   6.70 .095 .11 .70 <.006 1.89   .062 <.005 8.80  
JUN
12... 106    82.1 <.04 1.2   4.22 .083 .30 .49 <.006 .321 .024 <.005 1.77  
JUL
02... 96.5 82.8 <.04 1.4   3.91 .060 .36 .57 <.006 .227 .018 <.005 1.27  
AUG
19... 92.8 74.2 <.04 1.1   2.69 .051 .40 .58 <.006 .103 <.004 <.005 .216
Ben- Ethal-
flur- Car- Carbo- Disul- flur-
alin, Butyl- baryl, furan, Chlor- Cyana- DCPA, Diazi- Diel- foton, EPTC, alin,
water, ate, water, water, pyrifos zine, water CIAT, non, drin, water, water, water,
fltrd water, fltrd fltrd water, water, fltrd water, water, water, fltrd fltrd fltrd
Date 0.7u GF fltrd, 0.7u GF 0.7u GF fltrd, fltrd, 0.7u GF fltrd, fltrd, fltrd, 0.7u GF 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
(82673) (04028) (82680) (82674) (38933) (04041) (82682) (04040) (39572) (39381) (82677) (82668) (82663)
OCT 2002
15... <.010 <.002 <.041 <.020 <.005 <.018 <.003 E.021 .018 <.005 <.02 <.002 <.009
DEC
17... <.010 <.002 <.041 <.020 <.005 <.018 <.003 E.018 E.022 <.005 <.02 <.002 <.009
FEB 2003
19... <.010 <.002 <.041 <.020 <.005 <.018 <.003 E.025 .013 <.005 <.02 <.002 <.009
APR
09... <.010 <.002 E.014 <.020 <.005 <.018 <.003 E.022 .016 <.005 <.02 <.002 <.009
MAY
13... <.010 <.002 E.035 E.049 .010 .045 E.002 E.260 .026 <.005 <.02 <.002 <.009
JUN
12... <.010 <.002 E.007 E.012 <.005 E.006 <.003 E.119 .020 <.005 <.02 <.002 <.009
JUL
02... <.010 <.002 <.041 <.020 <.005 <.018 <.003 E.090 E.011 <.005 <.02 <.002 <.009
AUG
19... <.010 <.002 <.041 <.020 <.005 <.018 <.003 E.020 .016 <.005 <.02 <.002 <.009
Azin- Methyl
Etho- phos- para- Moli- Naprop-
prop, Linuron Mala- methyl, thion, Metola- Metri- nate, amide, p,p'- Para-
water, Fonofos Lindane water thion, water, water, chlor, buzin, water, water, DDE, thion,
fltrd water, water, fltrd water, fltrd fltrd water, water, fltrd fltrd water, water,
Date 0.7u GF fltrd, fltrd, 0.7u GF fltrd, 0.7u GF 0.7u GF fltrd, fltrd, 0.7u GF 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
(82672) (04095) (39341) (82666) (39532) (82686) (82667) (39415) (82630) (82671) (82684) (34653) (39542)
OCT 2002
15... <.005 <.003 <.004 <.035 <.027 <.050 <.006 .017 <.006 <.002 <.007 <.003 <.010
DEC
17... <.005 <.003 <.004 <.035 <.027 <.050 <.006 E.009 <.006 <.002 <.007 <.003 <.010
FEB 2003
19... <.005 <.003 <.004 <.035 <.027 <.050 <.006 .414 <.006 <.002 <.007 <.003 <.010
APR
09... <.005 <.003 <.004 <.035 <.027 <.050 <.006 .066 <.006 <.002 <.007 <.003 <.010
MAY
13... <.005 <.003 <.004 <.035 <.027 <.050 <.006 1.44   .040 <.002 <.007 <.003 <.010
JUN
12... <.005 <.003 <.004 <.035 E.011 <.050 <.006 .158 <.006 <.002 <.007 <.003 <.010
JUL
02... <.005 <.003 <.004 <.035 <.027 <.050 <.006 .065 <.006 <.002 <.007 <.003 <.010
AUG
19... <.005 <.003 <.004 <.035 <.027 <.050 <.006 .026 <.006 <.002 <.007 <.003 <.010
Pendi- cis-
Peb- meth- Per- Pron- Pro- Propar- Tebu- Terba- Terbu-
ulate, alin, methrin Phorate Prome- amide, Propa- panil, gite, Sima- thiuron cil, fos,
water, water, water water ton, water, chlor, water, water, zine, water water, water,
fltrd fltrd fltrd fltrd water, fltrd water, fltrd fltrd water, fltrd fltrd fltrd
Date 0.7u GF 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 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
(82669) (82683) (82687) (82664) (04037) (82676) (04024) (82679) (82685) (04035) (82670) (82665) (82675)
OCT 2002
15... <.004 <.022 <.006 <.011 .02 <.004 <.010 <.011 <.02 .012 <.02 <.034 <.02
DEC
17... <.004 <.022 <.006 <.011 E.01 <.004 <.010 <.011 <.02 .011 <.02 <.034 <.02
FEB 2003
19... <.004 <.022 <.006 <.011 E.01 <.004 <.010 <.011 <.02 .017 <.02 <.034 <.02
APR
09... <.004 <.022 <.006 <.011 E.01 <.004 <.010 <.011 <.02 .044 <.02 <.034 <.02
MAY
13... <.004 E.010 <.006 <.011 .02 <.004 E.005 <.011 <.02 .177 E.01 <.034 <.02
JUN
12... <.004 <.022 <.006 <.011 .02 <.004 <.010 <.011 <.02 .078 E.01 <.034 <.02
JUL
02... <.004 <.022 <.006 <.011 .04 <.004 <.010 <.011 <.02 .049 <.02 <.034 <.02
AUG
19... <.004 <.022 <.006 <.011 .03 <.004 <.010 <.011 <.02 .013 <.02 <.034 <.02
Tri- Sus-
Thio- Tri- flur- pended
bencarb allate, alin, sedi-
water water, water, ment
fltrd fltrd fltrd concen-
Date 0.7u GF 0.7u GF 0.7u GF tration
ug/L ug/L ug/L mg/L
(82681) (82678) (82661) (80154)
OCT 2002
15... <.005 .012 <.009 16
DEC
17... <.005 .015 <.009 14
FEB 2003
19... <.005 .042 <.009 9
APR
09... <.005 .017 <.009 28
MAY
13... <.005 .008 <.009 436
JUN
12... <.005 .010 <.009 125
JUL
02... <.005 .005 <.009 91
AUG
19... <.005 <.002 <.009 73
Remark codes used in this report:
< -- Less than
E -- Estimated value


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data