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
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Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data