LOCATION.-- Lat 42°04'54", long 87°53'26" (NAD of 1983), 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 (626.06 ft NAVD 1988). 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 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 | 62 | 180 | 352 | 129 | 199 | 538 | 397 | 161 | 137 | 66 | 63 | 60 |
2 | 74 | 296 | 328 | 216 | 191 | 495 | 421 | 154 | 129 | 62 | 65 | 56 |
3 | 65 | 239 | 283 | 272 | 188 | 465 | 417 | 144 | 124 | 59 | 63 | 53 |
4 | 62 | 288 | 255 | 287 | 196 | 440 | 412 | 132 | 130 | 136 | 60 | 53 |
5 | 61 | 267 | 238 | 274 | 237 | 428 | 418 | 124 | 140 | 174 | 57 | 54 |
6 | 58 | 212 | 259 | 252 | 344 | 430 | 418 | 117 | 136 | 99 | 56 | 63 |
7 | 57 | 174 | 474 | 215 | 531 | 493 | 419 | 111 | 135 | 74 | 52 | 65 |
8 | 122 | 151 | 612 | e190 | 665 | 530 | 413 | 115 | 137 | 63 | 44 | 68 |
9 | 105 | 135 | 568 | e197 | 663 | 550 | 399 | 113 | 134 | 57 | 47 | 64 |
10 | 80 | 120 | 539 | 207 | 631 | 570 | 379 | 142 | 124 | 54 | 48 | 61 |
11 | 70 | 109 | 518 | 225 | 595 | 585 | 358 | 228 | 116 | 59 | 52 | 58 |
12 | 69 | 103 | 490 | 415 | 573 | 583 | 382 | 275 | 110 | 60 | 154 | 59 |
13 | 69 | 96 | 443 | 1660 | 592 | 556 | 406 | 252 | 123 | 61 | 142 | 57 |
14 | 68 | 88 | 389 | 1760 | 830 | 517 | 364 | 350 | 110 | 56 | 79 | 60 |
15 | 71 | 86 | 339 | 1500 | 1030 | 471 | 326 | 354 | 104 | 57 | 63 | 59 |
16 | 75 | 88 | 292 | e1200 | 1080 | 425 | 299 | 317 | 96 | 54 | 59 | 70 |
17 | 78 | 88 | 262 | e920 | 1120 | 391 | 276 | 268 | 93 | 51 | 54 | 65 |
18 | 79 | 94 | 228 | 672 | 1070 | 371 | 258 | 222 | 91 | 57 | 106 | 61 |
19 | 78 | 186 | 198 | 619 | 998 | 393 | 234 | 372 | 87 | 60 | 170 | 82 |
20 | 77 | 222 | 155 | 527 | 947 | 413 | 228 | 448 | 85 | 148 | 340 | 86 |
21 | 78 | 193 | e140 | 461 | 924 | 421 | 216 | 395 | 85 | 200 | 201 | 69 |
22 | 77 | 178 | e130 | e430 | 830 | 431 | 259 | 363 | 78 | 104 | 127 | 127 |
23 | 229 | 161 | 122 | e400 | 752 | 450 | 283 | 321 | 73 | 79 | 108 | 150 |
24 | 202 | 172 | e110 | e370 | 685 | 453 | 270 | 275 | 72 | 81 | 93 | 97 |
25 | 137 | 212 | e108 | 327 | 626 | 456 | 258 | 226 | 72 | 89 | 81 | 89 |
26 | 115 | 216 | e101 | 288 | 576 | 447 | 239 | 187 | 74 | 115 | 71 | 163 |
27 | 97 | 318 | e99 | 261 | 530 | 431 | 222 | 162 | 72 | 107 | 74 | 132 |
28 | 89 | 386 | e98 | 226 | 544 | 411 | 203 | 150 | 67 | 82 | 67 | 122 |
29 | 88 | 314 | e100 | 220 | --- | 392 | 190 | 139 | 65 | 67 | 64 | 136 |
30 | 95 | 286 | 104 | 215 | --- | 387 | 180 | 144 | 69 | 62 | 67 | 107 |
31 | 92 | --- | 129 | 211 | --- | 413 | --- | 143 | --- | 59 | 61 | --- |
TOTAL | 2779 | 5658 | 8463 | 15146 | 18147 | 14336 | 9544 | 6904 | 3068 | 2552 | 2788 | 2446 |
MEAN | 89.6 | 189 | 273 | 489 | 648 | 462 | 318 | 223 | 102 | 82.3 | 89.9 | 81.5 |
MAX | 229 | 386 | 612 | 1760 | 1120 | 585 | 421 | 448 | 140 | 200 | 340 | 163 |
MIN | 57 | 86 | 98 | 129 | 188 | 371 | 180 | 111 | 65 | 51 | 44 | 53 |
CFSM | 0.25 | 0.52 | 0.76 | 1.36 | 1.80 | 1.28 | 0.88 | 0.62 | 0.28 | 0.23 | 0.25 | 0.23 |
IN. | 0.29 | 0.58 | 0.87 | 1.57 | 1.88 | 1.48 | 0.99 | 0.71 | 0.32 | 0.26 | 0.29 | 0.25 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1941 - 2005, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 156 | 215 | 231 | 237 | 323 | 619 | 624 | 433 | 308 | 178 | 132 | 134 |
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 2004 CALENDAR YEAR | FOR 2005 WATER YEAR | WATER YEARS 1941 - 2005 | |||
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ANNUAL TOTAL | 156903 | 91831 | ||||
ANNUAL MEAN | 429 | 252 | 299 | |||
HIGHEST ANNUAL MEAN | 656 | 1993 | ||||
LOWEST ANNUAL MEAN | 31.4 | 1963 | ||||
HIGHEST DAILY MEAN | 3740 | May 27 | 1760 | Jan 14 | 4870 | Oct 1 1986 |
LOWEST DAILY MEAN | 43 | Sep 23 | 44 | Aug 8 | 0.00 | A |
ANNUAL SEVEN-DAY MINIMUM | 54 | Sep 9 | 51 | Aug 5 | 0.00 | Aug 10 1944 |
MAXIMUM PEAK FLOW | 1860 | Jan 13 | 4900 | Oct 1 1986 | ||
MAXIMUM PEAK STAGE | 4.31 | Jan 13 | 10.88 | Oct 1 1986 | ||
INSTANTANEOUS LOW FLOW | 41 | Aug 8 | ||||
ANNUAL RUNOFF (CFSM) | 1.19 | 0.699 | 0.830 | |||
ANNUAL RUNOFF (INCHES) | 16.21 | 9.49 | 11.27 | |||
10 PERCENT EXCEEDS | 880 | 534 | 774 | |||
50 PERCENT EXCEEDS | 212 | 161 | 139 | |||
90 PERCENT EXCEEDS | 68 | 61 | 12 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |