LOCATION.-- Lat 42°09'10", long 87°49'07" (NAD of 1927), in SW1/4SE1/4 sec.34, T.43 N., R.12 E., Lake County, Hydrologic Unit 07120003, on right bank at upstream side of bridge on Lake-Cook Road, 1.7 mi southeast of Deerfield, 5.7 mi upstream from Skokie River, and at mile 64.7. | |
DRAINAGE AREA.-- 19.7 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
DISCHARGE: August 1952 to current year. | |
STAGE: Water years 1994 to current year. | |
SURFACE-WATER QUALITY | |
CHEMICAL: Water years 1978-91. | |
REVISED RECORDS.-- WDR IL-75-1: Drainage area. | |
GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 638.88 ft above NGVD of 1929 (Cook County Highway Department bench mark). | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 933 ft3/s, Aug. 14, 1987, gage height, 11.52 ft; maximum gage height, 11.55 ft, Oct. 13, 2001; no flow at times in most years. | |
REMARKS FOR CURRENT YEAR.-- Records fair except those for estimated daily discharges, which are poor. | |
| Discharge, cubic feet per second, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004
DAILY MEAN VALUES | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
| 1 | 1.8 | 3.8 | 6.2 | 6.6 | e1.3 | 47 | 43 | 13 | 169 | 2.3 | 0.92 | 3.7 |
| 2 | 1.4 | 38 | 5.1 | 7.2 | e1.2 | 53 | 32 | 11 | 79 | 2.0 | 0.88 | 2.9 |
| 3 | 6.3 | 108 | 4.4 | 6.6 | e1.4 | 33 | 25 | 9.4 | 44 | 13 | 6.6 | 2.3 |
| 4 | 5.1 | 71 | 3.8 | 6.2 | e1.5 | 41 | 20 | 8.7 | 28 | 58 | 22 | 2.0 |
| 5 | 2.1 | 119 | 13 | 4.6 | e1.4 | 311 | 16 | 8.2 | 17 | 28 | 5.1 | 1.5 |
| 6 | 1.3 | 52 | 11 | e3.3 | e1.6 | 180 | 14 | 7.5 | 11 | 18 | 2.6 | 1.2 |
| 7 | 1.1 | 34 | 8.9 | e2.6 | e1.7 | 113 | 13 | 7.3 | 8.3 | 12 | 1.9 | 0.83 |
| 8 | 0.75 | 23 | 8.2 | e2.1 | e1.6 | 59 | 13 | 6.8 | 5.7 | 8.7 | 1.7 | 0.42 |
| 9 | 0.65 | 16 | 13 | e1.9 | e1.5 | 42 | 14 | 6.4 | 4.9 | 8.1 | 1.5 | 0.19 |
| 10 | 0.58 | 12 | 121 | e1.8 | e1.5 | 32 | 11 | 9.3 | 47 | 62 | 1.3 | 0.17 |
| 11 | 0.48 | 10 | 87 | e2.0 | e1.5 | 27 | 9.8 | 14 | 125 | 42 | 1.1 | 0.12 |
| 12 | 0.48 | 7.0 | 50 | e2.1 | e1.4 | 20 | 9.0 | 15 | 99 | 23 | 0.96 | 0.08 |
| 13 | 0.51 | 4.7 | 34 | e2.0 | e1.3 | 19 | 8.7 | 28 | 69 | 14 | 0.88 | 0.05 |
| 14 | 24 | 4.0 | 24 | e1.7 | e1.4 | 19 | 7.8 | 64 | 49 | 11 | 0.90 | 0.03 |
| 15 | 15 | 2.9 | 18 | e1.8 | e1.3 | 17 | 7.3 | 67 | 30 | 5.2 | 0.92 | 0.13 |
| 16 | 8.1 | 2.3 | 15 | e1.8 | e1.3 | 16 | 7.4 | 44 | 18 | 3.6 | 0.90 | 0.48 |
| 17 | 5.8 | 2.4 | 13 | e1.6 | e1.4 | 17 | 18 | 32 | 14 | 2.6 | 3.2 | 0.30 |
| 18 | 3.8 | 80 | 11 | e1.3 | e1.6 | 17 | 13 | 151 | 9.5 | 2.0 | 3.9 | 0.11 |
| 19 | 3.6 | 58 | 9.4 | e1.0 | 2.7 | 18 | 10 | 116 | 6.7 | 1.7 | 1.8 | 0.08 |
| 20 | 4.5 | 36 | 8.0 | e0.93 | 12 | 19 | 13 | 109 | 4.7 | 2.1 | 1.8 | 0.07 |
| 21 | 2.4 | 27 | 8.1 | e0.88 | 23 | 17 | 23 | 124 | 33 | 7.4 | 1.1 | 0.05 |
| 22 | 1.4 | 20 | 7.2 | e0.86 | 23 | 15 | 16 | 274 | 53 | 9.3 | 0.97 | 0.06 |
| 23 | 0.52 | 23 | 8.8 | e0.84 | 39 | 15 | 15 | 191 | 31 | 14 | 0.88 | 0.10 |
| 24 | 1.1 | 28 | 6.2 | e0.85 | 54 | 28 | 15 | 129 | 21 | 4.1 | 3.3 | 0.02 |
| 25 | 2.9 | 19 | 5.1 | e0.94 | 46 | 32 | 26 | 78 | 15 | 2.5 | 1.9 | 0.01 |
| 26 | 2.5 | 15 | 4.6 | e1.1 | 42 | 96 | 20 | 49 | 10 | 1.8 | 2.4 | 0.07 |
| 27 | 1.3 | 12 | 4.6 | e1.2 | 37 | 84 | 17 | 35 | 6.8 | 1.6 | 3.6 | 0.02 |
| 28 | 0.92 | 10 | 7.8 | e1.4 | 34 | 99 | 14 | 26 | 4.9 | 1.3 | 32 | 0.00 |
| 29 | 0.85 | 8.6 | 9.5 | e1.6 | 30 | 237 | 12 | 21 | 3.6 | 1.3 | 16 | 0.00 |
| 30 | 0.87 | 8.4 | 8.6 | e1.4 | --- | 113 | 11 | 159 | 2.8 | 1.3 | 8.7 | 0.00 |
| 31 | 1.4 | --- | 7.7 | e1.5 | --- | 61 | --- | 306 | --- | 1.0 | 5.3 | --- |
| TOTAL | 103.51 | 855.1 | 542.2 | 71.70 | 368.6 | 1897 | 474.0 | 2119.6 | 1019.9 | 364.9 | 137.01 | 16.99 |
| MEAN | 3.34 | 28.5 | 17.5 | 2.31 | 12.7 | 61.2 | 15.8 | 68.4 | 34.0 | 11.8 | 4.42 | 0.57 |
| MAX | 24 | 119 | 121 | 7.2 | 54 | 311 | 43 | 306 | 169 | 62 | 32 | 3.7 |
| MIN | 0.48 | 2.3 | 3.8 | 0.84 | 1.2 | 15 | 7.3 | 6.4 | 2.8 | 1.0 | 0.88 | 0.00 |
| CFSM | 0.17 | 1.45 | 0.89 | 0.12 | 0.65 | 3.11 | 0.80 | 3.47 | 1.73 | 0.60 | 0.22 | 0.03 |
| IN. | 0.20 | 1.61 | 1.02 | 0.14 | 0.70 | 3.58 | 0.90 | 4.00 | 1.93 | 0.69 | 0.26 | 0.03 |
| e Estimated |
| STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1953 - 2004, BY WATER YEAR (WY) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MEAN | 8.61 | 13.2 | 14.3 | 12.2 | 19.4 | 34.3 | 36.7 | 22.5 | 16.6 | 10.2 | 8.69 | 8.98 |
| MAX | 101 | 76.3 | 95.9 | 62.8 | 64.2 | 153 | 109 | 108 | 64.3 | 59.7 | 59.9 | 70.5 |
| (WY) | 2002 | 1986 | 1983 | 1974 | 1997 | 1979 | 1999 | 1996 | 1996 | 1982 | 1990 | 1972 |
| MIN | 0.09 | 0.16 | 0.05 | 0.00 | 0.08 | 3.89 | 6.40 | 2.16 | 0.79 | 0.44 | 0.22 | 0.02 |
| (WY) | 1961 | 1963 | 1963 | 1963 | 1963 | 1968 | 1986 | 1992 | 1963 | 1965 | 1966 | 1966 |
| SUMMARY STATISTICS | FOR 2003 CALENDAR YEAR | FOR 2004 WATER YEAR | WATER YEARS 1953 - 2004 | |||
|---|---|---|---|---|---|---|
| ANNUAL TOTAL | 5666.79 | 7970.51 | ||||
| ANNUAL MEAN | 15.5 | 21.8 | 17.1 | |||
| HIGHEST ANNUAL MEAN | 32.2 | 1974 | ||||
| LOWEST ANNUAL MEAN | 2.32 | 1963 | ||||
| HIGHEST DAILY MEAN | 261 | May 11 | 311 | Mar 5 | 641 | Oct 14 2001 |
| LOWEST DAILY MEAN | 0.33 | Sep 8,9 | 0.00 | Sep 28-30 | 0.00 | A |
| ANNUAL SEVEN-DAY MINIMUM | 0.36 | Sep 5 | 0.02 | Sep 24 | 0.00 | Oct 5 1953 |
| MAXIMUM PEAK FLOW | 386 | Mar 5 | 933 | Aug 14 1987 | ||
| MAXIMUM PEAK STAGE | 9.45 | Mar 5,May 30 | 11.52 | Aug 14 1987 | ||
| ANNUAL RUNOFF (CFSM) | 0.788 | 1.11 | 0.868 | |||
| ANNUAL RUNOFF (INCHES) | 10.70 | 15.05 | 11.79 | |||
| 10 PERCENT EXCEEDS | 41 | 55 | 42 | |||
| 50 PERCENT EXCEEDS | 5.1 | 7.8 | 4.9 | |||
| 90 PERCENT EXCEEDS | 0.40 | 0.88 | 0.40 | |||