05536995 DATA: Chemical and Microbiological Tables, 2001

Station list Available data
ILLINOIS RIVER BASIN

05536995 CHICAGO SANITARY AND SHIP CANAL AT ROMEOVILLE, IL

LOCATION.-- Lat 41°38'27", long 88°03'35", in SE1/4SW1/4 sec.35, T.37 N., R.10 E., Will County, Hydrologic Unit 07120004, on left bank 40 ft upstream from bridge on Romeoville Road in Romeoville, 5.2 mi upstream from Lockport Lock and Dam, and at mile 6.2.

DRAINAGE AREA.-- 739 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: October 1984 to current year.

STAGE: Water years 1994-2001.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1987-92 and 1999 to current.

WATER TEMPERATURE: Water years 1974-77.

REVISED RECORDS.-- WDR IL-86-2: 1985. WDR IL-89-2: 1986. WDR IL-92-2: 1986-89.

GAGE.-- Acoustical flowmeter and phone telemeter. Datum of gage is 551.89 ft above sea level (U.S. Army Corps of Engineers bench mark).

REMARKS.-- Estimated daily discharges determined from a regression relation between present site and the previous site 5.2 mi downstream. This gaging station provides flow data essential to determine Illinois' diversion of Lake Michigan water. A U.S. Supreme Court Decree limits Illinois' diversion to an average of 3,200 ft³/s. Illinois' diversion includes water diverted from the lake for domestic water supply, for navigation and water-quality improvement in the Chicago Sanitary and Ship Canal system, and the stormwater runoff from a 673 mi² diverted watershed area. Flows recorded at this station also include nondiversion flows.

EXTREMES FOR PERIOD RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 19,466 ft³/s, Feb. 21, 1997, gage-height, 23.95 ft; maximum gage-height, 26.43 ft, Feb. 4, 1996, discharge, 2,876 ft³/s; minimum discharge, no flow or periods of reverse flow at times in most years.

REMARKS FOR CURRENT YEAR.-- Sampled as part of the Upper Illinois River Basin (UIRB) National Water Quality Assessment Program (NAWQA).

SURFACE-WATER QUALITY
					DIS-		OXYGEN,	PH
		AGENCY	AGENCY		CHARGE,		DIS-	WATER	SPE-				MAGNE-
		ANA-	COL-		INST.		SOLVED	WHOLE	CIFIC			CALCIUM	SIUM,
		LYZING	LECTING		CUBIC	OXYGEN,	(PER-	FIELD	CON-	TEMPER-	TEMPER-	DIS-	DIS-
		SAMPLE	SAMPLE	GAGE	FEET	DIS-	CENT	(STAND-	DUCT-	ATURE	ATURE	SOLVED	SOLVED
DATE	TIME	(CODE	(CODE	HEIGHT	PER	SOLVED	SATUR-	ARD	ANCE	AIR	WATER	(MG/L	(MG/L
		NUMBER)	NUMBER)	(FEET)	SECOND	(MG/L)	ATION)	UNITS)	(US/CM)	(DEG C)	(DEG C)	AS CA)	AS MG)
		(00028)	(00027)	(00065)	(00061)	(00300)	(00301)	(00400)	(00095)	(00020)	(00010)	(00915)	(00925)
OCT 2000
02...	1410	80020	81700	25.28	2660	--	--	7.6	705	28.0	20.4	54.7	18.3
NOV 2000
08...	1430	80020	81700	25.59	1340	6.4	68.2	7.3	845	8.0	17.1	52.8	19.0
DEC 2000
04...	1430	80020	81700	24.66	2450	8.0	71.7	7.4	917	2.5	10	58.4	20.8
JAN 2001
04...	1515	80020	81700	24.59	3960	7.3	61.1	7.2	2770	-2.0	6.2	65.6	22.5
FEB 2001
21...	1455	80020	81700	25.36	1770	9.0	74.2	7.5	1470	-3.0	6.5	77.6	30.7

			ALKA-	BICAR-					SOLIDS,	NITRO-	NITRO-	NITRO-	NITRO-
	POTAS-		LINITY	BONATE	CHLO-	FLUO-	SILICA,		RESIDUE	GEN,	GEN,AM-	GEN,AM-	GEN,
	SIUM,	SODIUM,	WAT DIS	WATER	RIDE,	RIDE,	DIS-	SULFATE	AT 180	AMMONIA	MONIA +	MONIA +	NO₂+NO₃
	DIS-	DIS-	TOT IT	DIS IT	DIS-	DIS-	SOLVED	DIS-	DEG. C	DIS-	ORGANIC	ORGANIC	DIS-
	SOLVED	SOLVED	FIELD	FIELD	SOLVED	SOLVED	(MG/L	SOLVED	DIS-	SOLVED	DIS.	TOTAL	SOLVED
DATE	(MG/L	(MG/L	MG/L AS	MG/L AS	(MG/L	(MG/L	AS	(MG/L	SOLVED	(MG/L	(MG/L	(MG/L	(MG/L
	AS K)	AS NA)	CACO₃	HCO₃	AS CL)	AS F)	SIO₂)	AS SO₄)	(MG/L)	AS N)	AS N)	AS N)	AS N)
	(00935)	(00930)	(39086)	(00453)	(00940)	(00950)	(00955)	(00945)	(70300)	(00608)	(00623)	(00625)	(00631)
OCT 2000
02...	5.64	67.1	130	159	84.2	.6	4.8	66.6	412	.212	.77	.88	4.54
NOV 2000
08...	8.23	89.1	122	149	108	1.0	4.9	98.8	518	.237	.94	1.2	8.14
DEC 2000
04...	7.27	93.3	140	171	127	1.0	5.4	97.1	547	.566	.36	1.9	7.16
JAN 2001
04...	9.71	461	158	193	713	1.1	5.3	110	1580	2.57	3.6	3.8	4.42
FEB 2001
21...	6.94	174	171	209	283	.7	6.8	105	860	.890	1.7	1.8	5.34

	NITRO-		PHOS-				SED.
	GEN,	PHOS-	PHORUS			MANGA-	SUSP.
	NITRITE	PHORUS	ORTHO,	PHOS-	IRON,	NESE,	SIEVE	SEDI-
	DIS-	DIS-	DIS-	PHORUS	DIS-	DIS-	DIAM.	MENT,
	SOLVED	SOLVED	SOLVED	TOTAL	SOLVED	SOLVED	% FINER	SUS-
DATE	(MG/L	(MG/L	(MG/L	(MG/L	(UG/L	(UG/L	THAN	PENDED
	AS N)	AS P)	AS P)	AS P)	AS FE)	AS MN)	.062 MM	(MG/L)
	(00613)	(00666)	(00671)	(00665)	(01046)	(01056)	(70331)	(80154)
OCT 2000
02...	.068	--	.957	1.08	10	17.7	98	76
NOV 2000
08...	.116	2.12	2.26	2.54	20	19.5	92	95
DEC 2000
04...	.247	<.060	1.23	1.51	30	22.5	100	92
JAN 2001
04...	.538	1.65	1.50	1.74	50	49.6	99	207
FEB 2001
21...	.143	.538	.459	.604	20	39.8	97	145

Less than