LOCATION.-- Lat 42°03'37", long 88°01'00" (NAD of 1927), in SW1/4NW1/4 sec.8, T.41 N., R.11 E., Cook County, Hydrologic Unit 07120004, on left bank at upstream side of bridge on Algonquin Road in Rolling Meadows, 0.25 mi downstream from Arlington Heights Branch Salt Creek, and at mile 35.6. |
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DRAINAGE AREA.-- 30.5 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: October 1973 to current year. August 1950 to September 1971, and October 1972 to September 1973 at site 0.9 mi downstream, published as Salt Creek near Arlington Heights. Records may not be equivalent. |
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STAGE: Water years 1994-2002. |
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PARTIAL RECORD: Annual maximum, water year 1972. |
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REVISED RECORDS.-- WDR IL-75-1: Drainage area. WDR IL-93-2: 1992. |
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GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 686.40 ft above NGVD of 1929 (Cook County Highway Department bench mark). |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1,650 ft3/s, Aug. 14, 1987, gage height, 14.03 ft; no flow, Jan. 12-Feb. 8, 1977, as a result of freezeup, Aug. 20, 25, 1986, and Sept. 8, 9, 11, 1999. |
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REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor. |
DISCHARGE, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 14 | 34 | 44 | e5.0 | 28 | 13 | 22 | 59 | 6.0 | 3.8 | 0.63 | 8.5 |
2 | 9.8 | 22 | 31 | e4.7 | 19 | 23 | 27 | 196 | 4.7 | 5.2 | 0.39 | 118 |
3 | 9.2 | 17 | 22 | e4.4 | 16 | 27 | 22 | 69 | 27 | 5.3 | 0.43 | 58 |
4 | 16 | 14 | 18 | e4.4 | 12 | 21 | 17 | 42 | 657 | 5.4 | 3.9 | 30 |
5 | 45 | 13 | 16 | e4.2 | 11 | 16 | 15 | 32 | 401 | 4.8 | 15 | 18 |
6 | 17 | 12 | 17 | e4.2 | 8.7 | 20 | 12 | 26 | 127 | 7.0 | 2.9 | 9.5 |
7 | 8.8 | 11 | 12 | e4.3 | 10 | 29 | 30 | 22 | 95 | 6.8 | 1.3 | 6.7 |
8 | 5.6 | 10 | 10 | 4.4 | 14 | 172 | 118 | 19 | 55 | 4.9 | 0.78 | 4.6 |
9 | 4.1 | 7.6 | 8.3 | 4.8 | 23 | 248 | 256 | 35 | 55 | 51 | 0.58 | 3.9 |
10 | 9.9 | 6.1 | 7.7 | 5.1 | 50 | 92 | 91 | 18 | 41 | 7.2 | 0.51 | 4.1 |
11 | 14 | 5.1 | 6.6 | 5.2 | 43 | 54 | 59 | 121 | 83 | 3.2 | 0.44 | 3.5 |
12 | 53 | 4.8 | 11 | 5.4 | 34 | 42 | 45 | 447 | 49 | 1.7 | 0.37 | 2.2 |
13 | 542 | 3.8 | 57 | 5.1 | 27 | 37 | 36 | 136 | 31 | 1.1 | 151 | 1.9 |
14 | 680 | 5.0 | 38 | 5.6 | 22 | 33 | 30 | 62 | 34 | 1.2 | 87 | 1.5 |
15 | 230 | 4.7 | 29 | 6.5 | 20 | 28 | 28 | 43 | 29 | 1.1 | 30 | 1.2 |
16 | 78 | 5.0 | 27 | 6.9 | 19 | 23 | 21 | 142 | 19 | 1.1 | 13 | 1.3 |
17 | 50 | 4.4 | 29 | 7.5 | 17 | 20 | 27 | e115 | 12 | 1.3 | 7.0 | 1.5 |
18 | 50 | 4.5 | 24 | 6.0 | 14 | 18 | 18 | e60 | 8.9 | 1.5 | 3.6 | 3.2 |
19 | 57 | 7.3 | 31 | 5.2 | 35 | 16 | 16 | e36 | 11 | 1.1 | 8.2 | 44 |
20 | 34 | 5.2 | 26 | 4.7 | 100 | 16 | 14 | e28 | 10 | 1.1 | 4.1 | 52 |
21 | 32 | 3.8 | 21 | 5.0 | 79 | 17 | 37 | e21 | 4.9 | 1.0 | 25 | 27 |
22 | 52 | 3.9 | 22 | 5.3 | 48 | 16 | 31 | e19 | 3.4 | 1.2 | 982 | 61 |
23 | 542 | 3.7 | 26 | 7.8 | 37 | 16 | 21 | e17 | 2.4 | 1.1 | 404 | 22 |
24 | 342 | 21 | 20 | 10 | 30 | 13 | 22 | 19 | 2.2 | 0.97 | 148 | 9.1 |
25 | 185 | 34 | 17 | 8.8 | 26 | 11 | 21 | 25 | 2.2 | 1.0 | 95 | 5.3 |
26 | 75 | 19 | 13 | 8.0 | 24 | 8.7 | 14 | 20 | 1.5 | 1.0 | 88 | 3.8 |
27 | 63 | 17 | 12 | 7.7 | 19 | 7.7 | 33 | 14 | 1.7 | 6.3 | 75 | 3.3 |
28 | 53 | 13 | 9.9 | 8.2 | 15 | 6.8 | 49 | 16 | 2.1 | 2.3 | 52 | 2.9 |
29 | 56 | 20 | 9.3 | 7.9 | --- | 44 | 33 | 11 | 2.2 | 18 | 37 | 28 |
30 | 65 | 68 | e7.4 | 7.7 | --- | 36 | 23 | 9.0 | 2.4 | 2.2 | 26 | 8.5 |
31 | 60 | --- | e6.2 | 15 | --- | 23 | --- | 7.0 | --- | 0.97 | 10 | --- |
TOTAL | 3452.4 | 399.9 | 628.4 | 195.0 | 800.7 | 1147.2 | 1188 | 1886.0 | 1780.6 | 151.84 | 2273.13 | 544.5 |
MEAN | 111.4 | 13.33 | 20.27 | 6.290 | 28.60 | 37.01 | 39.60 | 60.84 | 59.35 | 4.898 | 73.33 | 18.15 |
MAX | 680 | 68 | 57 | 15 | 100 | 248 | 256 | 447 | 657 | 51 | 982 | 118 |
MIN | 4.1 | 3.7 | 6.2 | 4.2 | 8.7 | 6.8 | 12 | 7.0 | 1.5 | 0.97 | 0.37 | 1.2 |
CFSM | 3.65 | 0.44 | 0.66 | 0.21 | 0.94 | 1.21 | 1.30 | 1.99 | 1.95 | 0.16 | 2.40 | 0.60 |
IN. | 4.21 | 0.49 | 0.77 | 0.24 | 0.98 | 1.40 | 1.45 | 2.30 | 2.17 | 0.19 | 2.77 | 0.66 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1974 - 2002, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 19.74 | 28.66 | 28.07 | 25.07 | 35.27 | 49.49 | 58.94 | 42.47 | 29.11 | 18.29 | 27.83 | 20.65 |
MAX | 111 | 120 | 107 | 85.7 | 113 | 202 | 136 | 148 | 87.6 | 83.6 | 136 | 77.0 |
(WY) | 2002 | 1986 | 1983 | 1999 | 1997 | 1979 | 1983 | 1996 | 1996 | 1993 | 1987 | 2001 |
MIN | 2.42 | 2.32 | 0.62 | 0.13 | 2.43 | 10.5 | 9.73 | 7.33 | 3.15 | 3.00 | 2.56 | 1.63 |
(WY) | 1980 | 1977 | 1977 | 1977 | 1978 | 2000 | 1989 | 1977 | 1988 | 1979 | 1986 | 1974 |
SUMMARY STATISTICS | FOR 2001 CALENDAR YEAR | FOR 2002 WATER YEAR | WATER YEARS 1974 - 2002 | |||
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ANNUAL TOTAL | 14554.43 | 14447.67 | ||||
ANNUAL MEAN | 39.88 | 39.58 | 31.92 | |||
HIGHEST ANNUAL MEAN | 52.1 | 1993 | ||||
LOWEST ANNUAL MEAN | 9.25 | 1977 | ||||
HIGHEST DAILY MEAN | 892 | Sep 19 | 982 | Aug 22 | 1180 | Aug 14 1987 |
LOWEST DAILY MEAN | 0.31 | Sep 16 | 0.37 | Aug 12 | 0.00 | A |
ANNUAL SEVEN-DAY MINIMUM | 0.85 | Jul 10 | 0.98 | Aug 6 | 0.00 | Jan 12 1977 |
MAXIMUM PEAK FLOW | 1450 | Oct 13 | 1650 | Aug 14 1987 | ||
MAXIMUM PEAK STAGE | 10.88 | Oct 13 | 14.03 | Aug 14 1987 | ||
INSTANTANEOUS LOW FLOW | 0.23 | Aug 2,12 | ||||
ANNUAL RUNOFF (CFSM) | 1.31 | 1.30 | 1.05 | |||
ANNUAL RUNOFF (INCHES) | 17.75 | 17.62 | 14.22 | |||
10 PERCENT EXCEEDS | 69 | 71 | 73 | |||
50 PERCENT EXCEEDS | 16 | 16 | 13 | |||
90 PERCENT EXCEEDS | 2.0 | 2.2 | 1.7 |
A - Jan. 12 - Feb. 8, 1977, result of freezeup; Aug. 20, 25, 1986 and Sept. 8, 9, 11, 1999. |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |