LOCATION.-- Lat 42°09'06", long 87°57'26" (NAD of 1927), in NE1/4NW1/4 sec.4, T.42 N., R.11 E., Cook County, Hydrologic Unit 07120004, on left bank at downstream side of bridge on Short Aptakisic Road, 1.0 mi downstream from unnamed tributary, 2.5 mi west of Wheeling, and at mile 5.0. |
|
DRAINAGE AREA.-- 19.6 mi2. |
|
PERIOD OF RECORD.-- |
|
SURFACE-WATER DISCHARGE AND STAGE |
|
DISCHARGE: August 1952 to current year. |
|
STAGE: Water years 1994-2002. |
|
REVISED RECORDS.-- WDR IL-75-1: Drainage area. WDR IL-94-2: 1986-93 (P), 1993. |
|
GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 658.60 ft above NGVD of 1929 (Cook County Highway Department bench mark). |
|
EXTREMES FOR PERIOD OF RECORD.-- |
|
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 887 ft3/s, July 22, 1982, gage height, 7.94 ft; no flow at times in several years. |
|
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 |
||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 11 | 23 | 36 | e6.0 | 12 | 15 | 18 | 25 | 7.5 | 2.0 | 1.2 | 3.7 |
2 | 9.3 | 20 | 26 | e6.0 | 12 | 19 | 19 | 68 | 7.2 | 1.7 | 0.84 | 37 |
3 | 8.2 | 16 | 19 | e5.4 | 10 | 21 | 18 | 48 | 20 | 1.2 | 0.64 | 39 |
4 | 12 | 14 | 16 | e5.0 | 11 | 22 | 16 | 35 | 168 | 1.1 | 10 | 24 |
5 | 21 | 13 | 16 | e4.6 | 13 | 17 | 15 | 28 | 193 | 0.77 | 18 | 14 |
6 | 15 | 12 | 15 | e4.4 | 6.8 | 17 | 14 | 23 | 181 | 2.1 | 8.5 | 9.2 |
7 | 9.4 | 10 | 13 | 4.3 | 6.7 | 20 | 18 | 19 | 116 | 0.99 | 3.5 | 6.3 |
8 | 7.4 | 9.7 | 11 | 4.3 | 7.9 | 62 | 50 | 17 | 47 | 0.67 | 1.9 | 4.6 |
9 | 5.8 | 9.6 | 9.4 | 3.9 | 11 | 110 | 117 | 23 | 34 | 5.1 | 1.2 | 3.6 |
10 | 7.8 | 8.5 | 7.7 | 4.0 | 24 | 94 | 100 | 17 | 27 | 2.5 | 0.88 | 3.0 |
11 | 8.9 | 7.9 | 6.9 | 4.3 | 32 | 65 | 57 | 45 | 38 | 1.7 | 0.62 | 2.2 |
12 | 33 | 7.3 | 8.9 | 4.2 | 26 | 47 | 40 | 144 | 34 | 1.5 | 0.54 | 1.6 |
13 | 240 | 6.8 | 24 | 3.9 | 22 | 37 | 31 | 133 | 27 | 1.2 | 53 | 1.4 |
14 | 276 | 6.7 | 24 | 4.2 | 18 | 29 | 26 | 98 | 26 | 0.65 | 52 | 1.3 |
15 | 236 | 6.8 | 20 | 4.1 | 16 | 27 | 22 | 49 | 25 | 0.56 | 25 | 1.1 |
16 | 211 | 6.4 | 17 | 4.4 | 15 | 22 | 19 | 69 | 20 | 0.41 | 15 | 1.00 |
17 | 155 | 6.0 | 17 | 4.5 | 13 | 19 | 16 | 94 | 15 | 0.26 | 9.2 | 0.71 |
18 | 58 | 6.5 | 15 | 7.2 | 14 | 18 | 15 | 84 | 12 | 0.27 | 5.7 | 1.4 |
19 | 39 | 7.3 | 17 | 4.6 | 19 | 16 | 13 | 54 | 11 | 0.31 | 6.8 | 11 |
20 | 30 | 5.8 | 16 | 3.8 | 44 | 16 | 14 | 35 | 8.6 | 0.28 | 4.5 | 16 |
21 | 22 | 5.2 | 14 | 3.5 | 53 | 15 | 20 | 27 | 6.8 | 0.59 | 12 | 10 |
22 | 27 | 4.9 | 14 | 3.5 | 42 | 13 | 21 | 22 | 6.0 | 0.80 | 279 | 14 |
23 | 257 | 4.7 | 14 | 4.4 | 32 | 11 | 18 | 18 | 5.0 | 0.60 | 215 | 8.9 |
24 | 250 | 9.1 | 12 | 5.0 | 29 | 9.5 | 16 | 16 | 4.5 | 0.64 | 189 | 5.3 |
25 | 221 | 14 | e11 | 5.0 | 24 | 8.4 | 16 | 17 | 4.0 | 0.73 | 129 | 3.7 |
26 | 183 | 11 | e10 | 4.9 | 21 | 8.3 | 14 | 15 | 3.6 | 0.74 | 38 | 4.0 |
27 | 104 | 10 | e8.8 | 4.8 | 19 | 8.5 | 20 | 14 | 2.9 | 1.9 | 22 | 2.8 |
28 | 54 | 9.1 | e7.6 | 5.1 | 18 | 8.5 | 27 | 12 | 2.8 | 1.3 | 14 | 2.0 |
29 | 42 | 12 | e7.0 | 5.0 | --- | 18 | 24 | 11 | 2.5 | 3.7 | 9.5 | 8.0 |
30 | 32 | 35 | e6.4 | 4.6 | --- | 23 | 20 | 9.6 | 2.3 | 2.3 | 6.7 | 5.5 |
31 | 26 | --- | e6.0 | 8.5 | --- | 20 | --- | 8.0 | --- | 1.6 | 4.6 | --- |
TOTAL | 2611.8 | 318.3 | 445.7 | 147.4 | 571.4 | 836.2 | 834 | 1277.6 | 1057.7 | 40.17 | 1137.82 | 246.31 |
MEAN | 84.25 | 10.61 | 14.38 | 4.755 | 20.41 | 26.97 | 27.80 | 41.21 | 35.26 | 1.296 | 36.70 | 8.210 |
MAX | 276 | 35 | 36 | 8.5 | 53 | 110 | 117 | 144 | 193 | 5.1 | 279 | 39 |
MIN | 5.8 | 4.7 | 6.0 | 3.5 | 6.7 | 8.3 | 13 | 8.0 | 2.3 | 0.26 | 0.54 | 0.71 |
CFSM | 4.30 | 0.54 | 0.73 | 0.24 | 1.04 | 1.38 | 1.42 | 2.10 | 1.80 | 0.07 | 1.87 | 0.42 |
IN. | 4.96 | 0.60 | 0.85 | 0.28 | 1.08 | 1.59 | 1.58 | 2.42 | 2.01 | 0.08 | 2.16 | 0.47 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1952 - 2002, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 9.947 | 14.81 | 16.03 | 14.33 | 21.44 | 32.96 | 36.58 | 24.14 | 18.72 | 11.21 | 11.26 | 10.94 |
MAX | 84.3 | 89.6 | 92.8 | 53.1 | 69.9 | 147 | 97.1 | 116 | 103 | 46.1 | 64.5 | 65.4 |
(WY) | 2002 | 1986 | 1983 | 1974 | 1997 | 1979 | 1983 | 1996 | 1970 | 1978 | 1987 | 1972 |
MIN | 0.000 | 0.000 | 0.032 | 0.042 | 0.12 | 4.80 | 4.26 | 3.33 | 0.74 | 0.058 | 0.000 | 0.000 |
(WY) | 1953 | 1954 | 1954 | 1954 | 1963 | 1956 | 1963 | 1977 | 1963 | 1953 | 1955 | 1953 |
SUMMARY STATISTICS | FOR 2001 CALENDAR YEAR | FOR 2002 WATER YEAR | WATER YEARS 1952 - 2002 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 10216.86 | 9524.40 | ||||
ANNUAL MEAN | 27.99 | 26.09 | 18.51 | |||
HIGHEST ANNUAL MEAN | 32.9 | 1993 | ||||
LOWEST ANNUAL MEAN | 2.00 | 1963 | ||||
HIGHEST DAILY MEAN | 309 | Sep 19 | 279 | Aug 22 | 525 | Dec 3 1982 |
LOWEST DAILY MEAN | 0.28 | Aug 8 | 0.26 | Jul 17 | 0.00 | A |
ANNUAL SEVEN-DAY MINIMUM | 0.90 | Aug 2 | 0.38 | Jul 15 | 0.00 | Aug 22 1952 |
MAXIMUM PEAK FLOW | 742 | Oct 13 | 887 | Jul 22 1982 | ||
MAXIMUM PEAK STAGE | 7.51 | Oct 13 | 7.94 | Jul 22 1982 | ||
INSTANTANEOUS LOW FLOW | 0.11 | Jul 17 | ||||
ANNUAL RUNOFF (CFSM) | 1.43 | 1.33 | 0.94 | |||
ANNUAL RUNOFF (INCHES) | 19.39 | 18.08 | 12.83 | |||
10 PERCENT EXCEEDS | 56 | 53 | 44 | |||
50 PERCENT EXCEEDS | 13 | 12 | 7.9 | |||
90 PERCENT EXCEEDS | 2.9 | 1.7 | 0.46 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |