LOCATION.-- Lat 41°38'48", long 87°45'59" (NAD of 1927), in SW1/4SE1/4 sec.32, T.37 N., R.13 E., Cook County, Hydrologic Unit 07120003, on left bank at downstream side of bridge on 135th Street, 1.5 mi west of State Highway 50, 3 mi southeast of Palos Park, and at mile 1.8. |
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DRAINAGE AREA.-- 11.2 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: July 1951 to current year. Prior to October 1952, records published with those for streams in the St. Lawrence River basin (WSP 1237). |
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STAGE: Water years 1994 to current year. |
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SURFACE-WATER QUALITY |
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MISCELLANEOUS: Water year 2000; contaminants in streambed sediments, water year 2000. |
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BIOLOGICAL |
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ALGAE: Water year 2000. |
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BENTHIC MACROINVERTEBRATES: Water year 2000. |
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FISH: Water year 2001. |
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HABITAT: Water year 2000-01. |
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REVISED RECORDS.-- WDR IL-75-1: Drainage area. WDR IL-81-2: 1955(M), 1957(M), 1970(M), 1978(M). |
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GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 607.40 ft above NGVD of 1929 (607.10 ft NAVD 1988). |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 2,010 ft3/s, July 18, 1996, from rating curve extended above 800 ft3/s on basis of indirect measurement of flow through culvert, gage height, 10.25 ft; maximum gage height, 10.30 ft, discharge, 1,930 ft3/s, Oct. 10, 1954; no flow at times in most years. |
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REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor. |
Discharge, cubic feet per second, WATER YEAR OCTOBER 2004 TO SEPTEMBER 2005 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 0.63 | 60 | 86 | 2.9 | 1.7 | 15 | 10 | 2.2 | 1.2 | 0.41 | 0.49 | 0.00 |
2 | 6.4 | 90 | 25 | 84 | 1.7 | 9.5 | 15 | 2.0 | 1.0 | 0.35 | 0.38 | 0.00 |
3 | 4.3 | 16 | 14 | 111 | 1.7 | 6.8 | 11 | 1.9 | 1.7 | 0.23 | 0.21 | 0.00 |
4 | 2.3 | 141 | 10 | 70 | 2.3 | 4.7 | 7.5 | 1.6 | 4.3 | 0.17 | 0.12 | 0.00 |
5 | 1.5 | 55 | 7.2 | 26 | 7.9 | 5.7 | 5.8 | 1.5 | 10 | 0.14 | 0.07 | 0.00 |
6 | 1.0 | 13 | 11 | 18 | 13 | 5.7 | 5.3 | 1.4 | 3.8 | 0.22 | 0.02 | 0.00 |
7 | 0.78 | 6.8 | 185 | e12 | 26 | 6.6 | 4.8 | 1.6 | 2.0 | 0.18 | 0.02 | 0.00 |
8 | 1.5 | 4.5 | 71 | 9.0 | 25 | 5.5 | 4.0 | 1.4 | 1.4 | 0.11 | 0.04 | 0.00 |
9 | 7.5 | 3.3 | 23 | 7.2 | 15 | 4.2 | 3.4 | 1.3 | 1.2 | 0.08 | 0.00 | 0.00 |
10 | 3.7 | 2.9 | 14 | 7.0 | 10 | 3.7 | 3.1 | 1.8 | 0.94 | 0.06 | 0.00 | 0.00 |
11 | 2.6 | 2.3 | 11 | 16 | 7.8 | 5.0 | 2.7 | 6.9 | 0.76 | 0.05 | 2.7 | 0.00 |
12 | 2.0 | 2.0 | 8.1 | 213 | 6.5 | 5.8 | 19 | 8.9 | 0.68 | 0.05 | 7.3 | 0.00 |
13 | 1.6 | 1.8 | 5.7 | 438 | 15 | 5.8 | 29 | 7.2 | 0.53 | 0.12 | 5.3 | 0.00 |
14 | 1.4 | 1.6 | 4.0 | 82 | 147 | 4.5 | 12 | 8.5 | 0.96 | 0.21 | 5.8 | 0.00 |
15 | 3.3 | 1.5 | 3.4 | 35 | 60 | 4.2 | 6.8 | 4.4 | 1.4 | 0.14 | 2.6 | 0.52 |
16 | 5.0 | 1.4 | 3.0 | 21 | 52 | 3.8 | 4.9 | 2.8 | 0.94 | 0.10 | 1.5 | 18 |
17 | 3.0 | 1.4 | 3.4 | 13 | 21 | 3.7 | 4.1 | 2.1 | 0.66 | 0.06 | 0.97 | 6.6 |
18 | 2.3 | 1.5 | 3.2 | 8.9 | 15 | 3.5 | 3.4 | 1.7 | 0.51 | 0.04 | 0.74 | 2.4 |
19 | 2.0 | 11 | 2.4 | 7.8 | 10 | 5.3 | 2.9 | 25 | 0.46 | 0.01 | 4.9 | 4.4 |
20 | 1.6 | 11 | 2.2 | 6.6 | 11 | 5.4 | 2.5 | 17 | 0.36 | 0.00 | 11 | 5.6 |
21 | 1.7 | 6.0 | 2.0 | 5.4 | 19 | 4.1 | 2.2 | 6.8 | 0.26 | 0.06 | 6.2 | 2.2 |
22 | 1.7 | 3.9 | 1.7 | e3.8 | 13 | 3.9 | 15 | 4.2 | 0.24 | 0.25 | 2.5 | 1.1 |
23 | 31 | 3.0 | 1.5 | e3.5 | 9.3 | 5.7 | 15 | 3.1 | 0.24 | 0.15 | 1.4 | 0.66 |
24 | 21 | 2.9 | e1.4 | e3.2 | 7.4 | 5.5 | 7.2 | 2.4 | 0.34 | 0.45 | 0.94 | 0.41 |
25 | 5.9 | 16 | e1.3 | e3.0 | 6.3 | 18 | 4.9 | 2.1 | 0.53 | 0.48 | 0.88 | 0.45 |
26 | 3.3 | 14 | e1.2 | e2.9 | 5.5 | 24 | 3.8 | 2.0 | 0.23 | 3.1 | 0.63 | 2.5 |
27 | 2.8 | 95 | e1.1 | e2.8 | 4.8 | 14 | 3.2 | 1.9 | 0.26 | 27 | 0.40 | 1.8 |
28 | 3.3 | 78 | e1.1 | 2.7 | 15 | 9.8 | 2.7 | 2.2 | 0.47 | 6.8 | 0.48 | 1.7 |
29 | 2.8 | 19 | e1.2 | 2.2 | --- | 7.4 | 2.4 | 2.0 | 0.22 | 2.5 | 0.14 | 12 |
30 | 7.3 | 17 | e1.3 | 1.9 | --- | 6.6 | 2.3 | 1.6 | 0.19 | 1.3 | 0.04 | 3.8 |
31 | 6.0 | --- | e1.6 | 1.8 | --- | 19 | --- | 1.3 | --- | 0.72 | 0.00 | --- |
TOTAL | 141.21 | 682.8 | 508.0 | 1221.6 | 529.9 | 232.4 | 215.9 | 130.8 | 37.78 | 45.54 | 57.77 | 64.14 |
MEAN | 4.56 | 22.8 | 16.4 | 39.4 | 18.9 | 7.50 | 7.20 | 4.22 | 1.26 | 1.47 | 1.86 | 2.14 |
MAX | 31 | 141 | 185 | 438 | 147 | 24 | 29 | 25 | 10 | 27 | 11 | 18 |
MIN | 0.63 | 1.4 | 1.1 | 1.8 | 1.7 | 3.5 | 2.2 | 1.3 | 0.19 | 0.00 | 0.00 | 0.00 |
CFSM | 0.41 | 2.03 | 1.46 | 3.52 | 1.69 | 0.67 | 0.64 | 0.38 | 0.11 | 0.13 | 0.17 | 0.19 |
IN. | 0.47 | 2.27 | 1.69 | 4.06 | 1.76 | 0.77 | 0.72 | 0.43 | 0.13 | 0.15 | 0.19 | 0.21 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1951 - 2005, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 6.48 | 10.0 | 9.83 | 11.0 | 13.5 | 20.7 | 21.1 | 15.6 | 11.7 | 6.76 | 5.22 | 5.35 |
MAX | 87.0 | 47.1 | 57.7 | 43.1 | 69.8 | 90.2 | 50.7 | 43.7 | 56.9 | 58.5 | 28.3 | 38.2 |
(WY) | 1955 | 2004 | 1983 | 1999 | 1997 | 1979 | 1970 | 2002 | 2000 | 1996 | 1987 | 1993 |
MIN | 0.00 | 0.17 | 0.15 | 0.06 | 0.19 | 2.24 | 1.52 | 1.79 | 0.67 | 0.15 | 0.00 | 0.00 |
(WY) | 1953 | 1954 | 1964 | 1977 | 1963 | 1981 | 1963 | 1963 | 1965 | 1956 | 1964 | 1953 |
SUMMARY STATISTICS | FOR 2004 CALENDAR YEAR | FOR 2005 WATER YEAR | WATER YEARS 1951 - 2005 | |||
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ANNUAL TOTAL | 5533.57 | 3867.84 | ||||
ANNUAL MEAN | 15.1 | 10.6 | 11.4 | |||
HIGHEST ANNUAL MEAN | 22.7 | 1993 | ||||
LOWEST ANNUAL MEAN | 2.27 | 1963 | ||||
HIGHEST DAILY MEAN | 386 | Jun 12 | 438 | Jan 13 | 891 | Oct 10 1954 |
LOWEST DAILY MEAN | 0.60 | Sep 27 | 0.00 | A | 0.00 | B |
ANNUAL SEVEN-DAY MINIMUM | 0.68 | Sep 25 | 0.00 | Aug 31 | 0.00 | B |
MAXIMUM PEAK FLOW | 712 | Jan 13 | 2010 C,D | Jul 18 1996 | ||
MAXIMUM PEAK STAGE | 7.99 | Jan 13 | 10.30 E | Oct 10 1954 | ||
ANNUAL RUNOFF (CFSM) | 1.35 | 0.946 | 1.02 | |||
ANNUAL RUNOFF (INCHES) | 18.38 | 12.85 | 13.84 | |||
10 PERCENT EXCEEDS | 30 | 18 | 25 | |||
50 PERCENT EXCEEDS | 3.3 | 2.9 | 2.7 | |||
90 PERCENT EXCEEDS | 1.2 | 0.14 | 0.20 |
C - From rating curve extended above 800 ft3/s on basis of indirect measurement of flow through culvert. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |