LOCATION.-- Lat 42°04'55", long 87°53'25" (NAD of 1927), in SE1/4SE1/4 sec.25, T.42 N., R.11 E., Cook County, Hydrologic Unit 07120004, on right bank 50 ft upstream from Dam No. 2 of Cook County Forest Preserve, 0.3 mi downstream from Lake Avenue Bridge, 1.2 mi upstream from Central Road Bridge, 2.5 mi north of Des Plaines, and at mile 69.3. |
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DRAINAGE AREA.-- 360 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: October 1940 to current year. |
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STAGE: Water years 1994 to current year. |
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SURFACE-WATER QUALITY |
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CHEMICAL: Water years 1978-91. |
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REVISED RECORDS.-- WSP 975: 1942. WDR IL-75-1: Drainage area. |
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GAGE.-- Water-stage recorder, phone telemeter, and masonry dam. Datum of gage is 626.31 ft above NGVD of 1929. Prior to Apr. 8, 1941, nonrecording gage at same site and datum. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 4,900 ft3/s, Oct. 1, 1986, gage height, 10.88 ft; no flow many days in 1944, 1946 and Aug. 7, 8, 1962. |
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EXTREMES OUTSIDE PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Flood of July 4, 1938, reached a stage of 9.0 ft, from floodmark, discharge, 5,000 ft3/s. |
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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 2002 TO SEPTEMBER 2003 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 104 | 62 | 78 | e86 | e54 | e48 | 242 | 1200 | 423 | 73 | 149 | 89 |
2 | 151 | 62 | 85 | e88 | e55 | e47 | 226 | 1100 | 369 | 69 | 155 | 91 |
3 | 224 | 64 | 85 | e88 | e57 | e47 | 217 | 616 | 339 | 68 | 230 | 90 |
4 | 262 | 65 | 84 | e87 | e57 | e49 | 455 | 469 | 316 | 80 | 344 | 90 |
5 | 276 | 68 | 83 | e86 | e57 | e52 | 574 | 1180 | 295 | 202 | 265 | 87 |
6 | 223 | 68 | 80 | e86 | e57 | e58 | 441 | 1160 | 263 | 288 | 234 | 83 |
7 | 197 | 64 | 79 | e87 | e56 | e62 | 379 | 772 | 243 | 510 | 284 | 81 |
8 | 164 | 62 | 77 | e84 | e56 | e70 | 380 | 638 | 273 | 452 | 268 | 86 |
9 | 137 | 60 | 73 | e82 | e54 | e77 | 376 | 1000 | 265 | 490 | 223 | 88 |
10 | 117 | 66 | 75 | e82 | e53 | e87 | 404 | 1070 | 242 | 476 | 183 | 85 |
11 | 91 | 71 | 73 | e81 | e52 | 97 | 363 | 1560 | 226 | 419 | 159 | 87 |
12 | 86 | 71 | 72 | e78 | e50 | 123 | 328 | 1490 | 210 | 353 | 143 | 90 |
13 | 83 | 69 | 76 | e76 | e49 | 155 | 314 | 1070 | 199 | 302 | 133 | 123 |
14 | 74 | 74 | 76 | e73 | e48 | 167 | 292 | 848 | 183 | 256 | 128 | 188 |
15 | 69 | 79 | 77 | e70 | e48 | 194 | 272 | 813 | 165 | 553 | 122 | 117 |
16 | 65 | 75 | 80 | e66 | e48 | 208 | 245 | 687 | 149 | 545 | 113 | 72 |
17 | 63 | 71 | 80 | e64 | e49 | 223 | 213 | 588 | 138 | 437 | 116 | 59 |
18 | 62 | 73 | 180 | e62 | e50 | 212 | 189 | 511 | 135 | 470 | 98 | 54 |
19 | 58 | 97 | 183 | e59 | e50 | 221 | 173 | 450 | 223 | 389 | 81 | 53 |
20 | 56 | 91 | 161 | e55 | e50 | 269 | 171 | 443 | 186 | 319 | 82 | 51 |
21 | 57 | 104 | 145 | e53 | e49 | 276 | 169 | 419 | 161 | 338 | 86 | 53 |
22 | 56 | 117 | e130 | e52 | e48 | 250 | 167 | 360 | 141 | 398 | 87 | 68 |
23 | 52 | 125 | e115 | e52 | e47 | 243 | 160 | 316 | 129 | 330 | 81 | 63 |
24 | 54 | 112 | e100 | e51 | e46 | 237 | 155 | 282 | 114 | 259 | 77 | 58 |
25 | 80 | 101 | e90 | e50 | e46 | 268 | 146 | 254 | 104 | 202 | 79 | 55 |
26 | 86 | 94 | e84 | e50 | e47 | 264 | 129 | 234 | 90 | 164 | 86 | 74 |
27 | 79 | 89 | e82 | e50 | e48 | 268 | 117 | 215 | 82 | 139 | 87 | 117 |
28 | 73 | 82 | e80 | e50 | e49 | 289 | 110 | 278 | 81 | 123 | 82 | 92 |
29 | 71 | 80 | e79 | e52 | --- | 306 | 104 | 455 | 93 | 118 | 80 | 72 |
30 | 69 | 82 | e82 | e54 | --- | 282 | 174 | 336 | 79 | 130 | 76 | 69 |
31 | 65 | --- | e85 | e54 | --- | 255 | --- | 406 | --- | 123 | 77 | --- |
TOTAL | 3304 | 2398 | 2929 | 2108 | 1430 | 5404 | 7685 | 21220 | 5916 | 9075 | 4408 | 2485 |
MEAN | 107 | 79.9 | 94.5 | 68.0 | 51.1 | 174 | 256 | 685 | 197 | 293 | 142 | 82.8 |
MAX | 276 | 125 | 183 | 88 | 57 | 306 | 574 | 1560 | 423 | 553 | 344 | 188 |
MIN | 52 | 60 | 72 | 50 | 46 | 47 | 104 | 215 | 79 | 68 | 76 | 51 |
CFSM | 0.30 | 0.22 | 0.26 | 0.19 | 0.14 | 0.48 | 0.71 | 1.90 | 0.55 | 0.81 | 0.39 | 0.23 |
IN. | 0.34 | 0.25 | 0.30 | 0.22 | 0.15 | 0.56 | 0.79 | 2.19 | 0.61 | 0.94 | 0.46 | 0.26 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1941 - 2003, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 158 | 213 | 228 | 235 | 320 | 618 | 632 | 421 | 300 | 176 | 133 | 136 |
MAX | 1453 | 1187 | 1368 | 1046 | 1070 | 2216 | 1990 | 1557 | 1299 | 908 | 726 | 1191 |
(WY) | 1987 | 1986 | 1983 | 1960 | 1974 | 1979 | 1993 | 1996 | 2000 | 1993 | 1972 | 1972 |
MIN | 0.96 | 3.02 | 2.73 | 2.92 | 5.01 | 40.7 | 57.7 | 41.5 | 15.3 | 6.35 | 0.81 | 0.30 |
(WY) | 1945 | 1954 | 1945 | 1945 | 1963 | 1945 | 1945 | 1946 | 1963 | 1946 | 1944 | 1944 |
SUMMARY STATISTICS | FOR 2002 CALENDAR YEAR | FOR 2003 WATER YEAR | WATER YEARS 1941 - 2003 | |||
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ANNUAL TOTAL | 97676 | 68362 | ||||
ANNUAL MEAN | 268 | 187 | 297 | |||
HIGHEST ANNUAL MEAN | 656 | 1993 | ||||
LOWEST ANNUAL MEAN | 31.4 | 1963 | ||||
HIGHEST DAILY MEAN | 1890 | Aug 23 | 1560 | May 11 | 4870 | Oct 1 1986 |
LOWEST DAILY MEAN | 47 | Sep 17 | 46 A | Feb 24,25 | 0.00 B | |
ANNUAL SEVEN-DAY MINIMUM | 53 | Sep 12 | 47 | Feb 21 | 0.00 | Aug 10 1944 |
MAXIMUM PEAK FLOW | 1630 | May 11 | 4900 | Oct 1 1986 | ||
MAXIMUM PEAK STAGE | 3.86 | May 11 | 10.88 | Oct 1 1986 | ||
INSTANTANEOUS LOW FLOW | C | |||||
ANNUAL RUNOFF (CFSM) | 0.74 | 0.52 | 0.83 | |||
ANNUAL RUNOFF (INCHES) | 10.09 | 7.06 | 11.21 | |||
10 PERCENT EXCEEDS | 656 | 405 | 774 | |||
50 PERCENT EXCEEDS | 142 | 91 | 138 | |||
90 PERCENT EXCEEDS | 66 | 53 | 12 |
C - Minimum not determined. Occurred during period of ice effect. |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |