05553500 DATA: SW_QUAL_TBL

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 2004.
	MISCELLANEOUS: Contaminants in streambed sediments, August 1998; contaminants in fish tissue, August, 1998.
BIOLOGICAL
	ALGAE: Water years 1998-99 and 2002-03.
	BENTHIC MACROINVERTEBRATES: Water years 1998-99 and 2002.
	FISH: Water years 1998-99 and 2002-04.
	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.

REMARKS.-- Discharges for surface-water quality data for water years 1997 to current are computed by adding discharges of Illinois River at Marseilles (05543500) and Fox River at Dayton, IL (05552500).

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
		col-	ana-	taneous	Dis-	oxygen,	unfltrd	tance,	Temper-	Temper-	inc tit	incrm.	incrm.
		lecting	lyzing	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
		(00027)	(00028)	(00061)	(00300)	(00301)	(00400)	(00095)	(00020)	(00010)	(39086)	(00453)	(00452)
OCT 2003
16...	1120	81700	80020	E9710	9.5	100	8.5	820	12.0	17.4	160	E194	<1
DEC
03...	1030	81700	80020	E9300	13.7	107	8.4	760	3.0	5.0	189	228	1
FEB 2004
26...	1120	81700	80020	E11600	11.9	88	7.9	1160	6.0	2.9	180	E218	<1
APR
08...	1125	81700	80020	E11800	13.0	120	8.5	890	15.0	12.5	220	264	2
MAY
14...	1050	81700	80020	E20300	8.9	103	8.1	967	16.0	23.0	182	E220	E1
JUN
11...	1025	81700	80020	E23900	--	--	8.0	809	26.0	25.4	200	238	2
JUL
07...	0950	81700	80020	E11200	7.5	92	8.4	762	20.5	25.8	176	209	3
AUG
04...	0955	81700	80020	E16100	7.8	100	8.3	718	24.0	28.2	150	180	1

				Nitrite		Ortho-		Total	2,6-Di-
				+		phos-		nitro-	ethyl-
	Chlor-		Ammonia	nitrate	Nitrite	phate,	Phos-	gen,	aniline		Aceto-	Ala-	alpha-
	ide,	Sulfate	water,	water	water,	water,	phorus,	wat unf	water	CIAT,	chlor,	chlor,	HCH,
	water,	water,	fltrd,	fltrd,	fltrd,	fltrd,	water,	by anal	fltrd	water,	water,	water,	water,
Date	fltrd,	fltrd,	mg/L	mg/L	mg/L	mg/L	unfltrd	ysis,	0.7u GF	fltrd,	fltrd,	fltrd,	fltrd,
	mg/L	mg/L	as N	as N	as N	as P	mg/L	mg/L	ug/L	ug/L	ug/L	ug/L	ug/L
	(00940)	(00945)	(00608)	(00631)	(00613)	(00671)	(00665)	(62855)	(82660)	(04040)	(49260)	(46342)	(34253)
OCT 2003
16...	98.5	89.5	<.04	4.24	.075	.641	.88	5.80	<.006	E.026	.037	.041	<.005
DEC
03...	66.6	79.3	.04	6.22	.038	.181	.29	7.36	<.006	E.006	.065	<.010	<.005
FEB 2004
26...	211	78.3	<.04	5.23	.094	.493	.61	6.58	<.006	E.023	.360	<.006	<.005
APR
08...	101	75.4	<.04	6.63	.043	.124	.24	7.80	E.004	E.021	.032	<.005	<.005
MAY
14...	122	85.0	E.02	6.07	.075	.493	.92	7.35	<.006	E.057	.524	.021	<.005
JUN
11...	76.6	58.4	<.04	5.44	.044	.219	.54	6.89	<.006	E.141	.253	.016	<.005
JUL
07...	84.8	68.3	<.04	4.14	.054	.393	.63	4.49	.012	E.060	.321	.010	<.005
AUG
04...	78.4	71.2	<.04	3.30	.041	.474	.69	4.16	<.006	E.032	.076	<.005	<.005

Azin-

Ben-

cis-

phos-

flur-

Car-

Carbo-

Per-

Disul-

Atra-

methyl,

alin,

Butyl-

baryl,

furan,

Chlor-

methrin

Cyana-

DCPA,

Diazi-

Diel-

foton,

zine,

water,

ate,

water,

pyrifos

water

zine,

water

non,

drin,

water,

fltrd

water,

fltrd

water,

fltrd

water,

fltrd

water,

fltrd

Date

fltrd,

0.7u GF

fltrd,

0.7u GF

fltrd,

0.7u GF

fltrd,

0.7u GF

fltrd,

0.7u GF

ug/L

(39632)

(82686)

(82673)

(04028)

(82680)

(82674)

(38933)

(82687)

(04041)

(82682)

(39572)

(39381)

(82677)

OCT 2003

16...

.259

<.050

<.010

<.002

<.041

<.020

<.005

<.006

<.018

<.003

.010

<.005

<.02

DEC

03...

.174

<.050

<.010

<.004

<.041

<.020

<.005

<.006

<.018

<.003

.007

<.009

<.02

FEB 2004

26...

.459

<.050

<.010

<.004

<.041

<.020

<.005

<.006

<.018

<.003

.015

<.009

<.02

APR

08...

.156

<.050

<.010

<.004

E.006

<.020

<.005

<.006

<.018

<.003

.007

<.009

<.02

MAY

14...

1.21

<.050

<.010

<.004

<.041

<.020

<.005

<.006

<.018

.003

.018

<.009

<.02

JUN

11...

1.80

<.050

<.010

<.004

<.041

<.020

<.010

<.006

<.018

<.003

.007

<.009

<.02

JUL

07...

.974

<.050

<.010

<.004

<.041

<.020

<.005

<.006

<.018

<.003

.011

<.009

<.02

AUG

04...

.278

<.050

<.010

<.004

<.041

<.020

<.005

<.006

<.018

<.003

.007

<.009

<.02

Ethal-

Methyl

flur-

Etho-

para-

Moli-

Naprop-

EPTC,

alin,

prop,

Linuron

Mala-

thion,

Metola-

Metri-

nate,

amide,

p,p'-

water,

Fonofos

Lindane

water

thion,

water,

chlor,

buzin,

water,

DDE,

fltrd

water,

fltrd

water,

fltrd

water,

fltrd

water,

Date

0.7u GF

fltrd,

0.7u GF

fltrd,

0.7u GF

fltrd,

0.7u GF

fltrd,

ug/L

(82668)

(82663)

(82672)

(04095)

(39341)

(82666)

(39532)

(82667)

(39415)

(82630)

(82671)

(82684)

(34653)

OCT 2003

16...

<.002

<.009

<.005

<.003

<.004

<.035

<.027

<.070

.117

<.006

<.002

<.007

<.003

DEC

03...

<.004

<.009

<.005

<.003

<.004

<.035

<.027

<.015

.026

<.006

<.003

<.007

<.003

FEB 2004

26...

<.004

<.009

<.005

<.003

<.004

<.035

<.027

<.015

.113

<.006

<.003

<.007

<.003

APR

08...

<.004

<.009

<.005

<.003

<.004

<.035

<.027

<.015

.057

<.006

<.003

<.007

<.003

MAY

14...

<.004

<.009

<.005

<.003

<.004

<.035

<.027

<.015

.215

<.006

<.003

<.007

<.003

JUN

11...

<.004

<.009

<.005

<.003

<.004

<.035

<.027

<.015

.437

<.006

<.003

<.007

<.003

JUL

07...

<.004

<.009

<.005

<.003

<.010

<.035

<.027

<.015

.120

<.006

<.003

<.007

<.003

AUG

04...

<.004

<.009

<.005

<.003

<.004

<.035

<.027

<.015

.033

<.006

<.003

<.007

<.003

Pendi-

Peb-

meth-

Propy-

Pro-

Propar-

Tebu-

Terba-

Terbu-

Para-

ulate,

alin,

Phorate

Prome-

zamide,

Propa-

panil,

gite,

Sima-

thiuron

cil,

fos,

thion,

water,

water

ton,

water,

chlor,

water,

zine,

water

water,

fltrd

water,

fltrd

water,

fltrd

water,

fltrd

Date

fltrd,

0.7u GF

fltrd,

0.7u GF

fltrd,

0.7u GF

fltrd,

0.7u GF

ug/L

(39542)

(82669)

(82683)

(82664)

(04037)

(82676)

(04024)

(82679)

(82685)

(04035)

(82670)

(82665)

(82675)

OCT 2003

16...

<.010

<.004

<.022

<.011

E.01

<.004

<.010

<.011

<.02

.030

E.01

<.034

<.02

DEC

03...

<.010

<.004

<.022

<.011

.01

<.004

<.025

<.011

<.02

.039

<.02

<.034

<.02

FEB 2004

26...

<.010

<.004

<.022

<.011

.01

<.004

<.025

<.011

<.02

.053

<.02

<.034

<.02

APR

08...

<.010

<.004

<.022

<.011

.01

<.004

<.025

<.011

<.02

.017

E.01

<.034

<.02

MAY

14...

<.010

<.004

<.022

<.011

.02

<.004

<.025

<.011

<.02

.022

E.01

<.034

<.02

JUN

11...

<.010

<.004

.031

<.011

.02

<.004

<.025

<.011

<.02

.089

<.02

<.034

<.02

JUL

07...

<.010

<.004

<.022

<.011

.02

<.004

<.025

<.011

<.02

.028

<.02

<.034

<.02

AUG

04...

<.010

<.004

<.022

<.011

.04

<.004

<.025

<.011

<.02

.014

E.01

<.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 2003
16...	<.005	.015	<.009	86
DEC
03...	<.010	.009	<.009	76
FEB 2004
26...	<.010	.004	<.009	113
APR
08...	<.010	.011	<.009	84
MAY
14...	<.010	.010	<.009	230
JUN
11...	<.010	<.002	<.009	190
JUL
07...	<.010	<.002	<.009	146
AUG
04...	<.010	<.002	<.009	123

Remark codes used in this table: < -- Less than
E -- Estimated value