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 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,

pyrifos

zine,

water

CIAT,

non,

drin,

water,

fltrd

water,

fltrd

water,

fltrd

water,

fltrd

Date

0.7u GF

fltrd,

0.7u GF

fltrd,

0.7u GF

fltrd,

0.7u GF

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,

chlor,

buzin,

water,

DDE,

thion,

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

(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

ton,

water,

chlor,

water,

zine,

water

water,

fltrd

water,

fltrd

water,

fltrd

water,

fltrd

Date

0.7u GF

fltrd,

0.7u GF

fltrd,

0.7u GF

fltrd,

0.7u GF

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