LOCATION.-- Lat 41°43'05", long 88°04'14" (NAD of 1927), in NE1/4SE1/4 sec.3, T.37 N., R.10 E., Will County, Hydrologic Unit 07120004, on downstream side of bridge on Royce Road, 0.5 mi north of Bolingbrook, 4.8 mi northwest of Lemont, and at mile 6.0. |
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DRAINAGE AREA.-- 75.8 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: October 1988 to current year. |
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STAGE: Water years 1994-2002. |
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PARTIAL RECORD: Annual maximum gage height, water years 1962-70 (published as "at Barbers Corners"). |
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PRECIPITATION: May 1989 to September 1995. |
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GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 625.28 ft above NGVD of 1929. Prior to Oct. 1, 1988, at datum 17.07 ft higher. |
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REMARKS.-- Diurnal fluctuation at low flow caused by sewage treatment plants upstream from station. For precipitation records, snowfall-affected data can result during cold weather when snow fills the rain-gage funnel and then melts as temperatures rise. Snowfall-affected data are subject to appreciable errors. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 3,980 ft3/s, July 18, 1996, gage height, 23.75 ft; minimum discharge, 2.4 ft3/s, Aug. 5, 1993. |
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PRECIPITATION: Maximum recorded, 3.80 in., May 9, 1990 but may have been greater during periods of missing record. |
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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 | 69 | 103 | 124 | 57 | 94 | 65 | 101 | 137 | 61 | 54 | 50 | 50 |
2 | 67 | 98 | 101 | 55 | 82 | 76 | 161 | 149 | 58 | 51 | 50 | 72 |
3 | 63 | 85 | 94 | 55 | 76 | 98 | 135 | 120 | 60 | 50 | 48 | 73 |
4 | 75 | 81 | 85 | 56 | 74 | 90 | 108 | 104 | 286 | 58 | 50 | 57 |
5 | 355 | 78 | 76 | 55 | 68 | 78 | 92 | 91 | 457 | 50 | 133 | 53 |
6 | 222 | 77 | 74 | 54 | 65 | 91 | 84 | 107 | 327 | 53 | 76 | 52 |
7 | 139 | 73 | 68 | 55 | 63 | 148 | 118 | 99 | 193 | 50 | 60 | 52 |
8 | 103 | 73 | 65 | 53 | 73 | 320 | 264 | 90 | 133 | 55 | 52 | 50 |
9 | 92 | 70 | 62 | 52 | 102 | 436 | 491 | 132 | 102 | 444 | 48 | 49 |
10 | 83 | 65 | 63 | 52 | 183 | 431 | 332 | 103 | 110 | 296 | 46 | 48 |
11 | 91 | 63 | 61 | 52 | 169 | e270 | 227 | 265 | 215 | 162 | 44 | 50 |
12 | 164 | 62 | 60 | 51 | 141 | e210 | 178 | 949 | 146 | 107 | 45 | 46 |
13 | 372 | 62 | 127 | 51 | 120 | 166 | 147 | 732 | 109 | 83 | 76 | 47 |
14 | 1560 | 79 | 104 | 54 | 105 | e125 | 128 | 400 | 170 | 73 | 176 | 47 |
15 | 1290 | 78 | 94 | 53 | 100 | e115 | 116 | 247 | 145 | 67 | 122 | 46 |
16 | 749 | 66 | 84 | 52 | 94 | e100 | 104 | 266 | 104 | 62 | 88 | 47 |
17 | 354 | 63 | 115 | 53 | 83 | e94 | 116 | 375 | 89 | 59 | 68 | 47 |
18 | 240 | 63 | 102 | 55 | 79 | e90 | 101 | 251 | 81 | 57 | 56 | 72 |
19 | 182 | 80 | 96 | 53 | 129 | 88 | 92 | 179 | 69 | 55 | 63 | 76 |
20 | 147 | 72 | 100 | 50 | 249 | 84 | 265 | 145 | 67 | 52 | 55 | 89 |
21 | 129 | 64 | 89 | 52 | e230 | 79 | 208 | 125 | 62 | 49 | 51 | 78 |
22 | 119 | 62 | 84 | 56 | e180 | 73 | 179 | 111 | 57 | 50 | 378 | 73 |
23 | 311 | 59 | 98 | 65 | 135 | 72 | 146 | 106 | 58 | 50 | 470 | 64 |
24 | 348 | 80 | 87 | 61 | 113 | 68 | 153 | 108 | 60 | 49 | 328 | 53 |
25 | 427 | 139 | 75 | 57 | 99 | 67 | 196 | 103 | 72 | 48 | 158 | 53 |
26 | 297 | 107 | 68 | 56 | 90 | 68 | 143 | 96 | 92 | 50 | 103 | 49 |
27 | 209 | 97 | 69 | 55 | 83 | 66 | 175 | 85 | 71 | 63 | 80 | 48 |
28 | 162 | 77 | 69 | 54 | 75 | 65 | 295 | 85 | 61 | 56 | 70 | 47 |
29 | 142 | 88 | 64 | 55 | --- | 114 | 208 | 77 | 55 | 66 | 64 | 49 |
30 | 126 | 138 | 61 | 55 | --- | 145 | 164 | 70 | 53 | 59 | 57 | 52 |
31 | 112 | --- | 60 | 71 | --- | 112 | --- | 65 | --- | 53 | 53 | --- |
TOTAL | 8799 | 2402 | 2579 | 1705 | 3154 | 4104 | 5227 | 5972 | 3623 | 2531 | 3218 | 1689 |
MEAN | 283.8 | 80.07 | 83.19 | 55.00 | 112.6 | 132.4 | 174.2 | 192.6 | 120.8 | 81.65 | 103.8 | 56.30 |
MAX | 1560 | 139 | 127 | 71 | 249 | 436 | 491 | 949 | 457 | 444 | 470 | 89 |
MIN | 63 | 59 | 60 | 50 | 63 | 65 | 84 | 65 | 53 | 48 | 44 | 46 |
CFSM | 3.74 | 1.06 | 1.10 | 0.73 | 1.49 | 1.75 | 2.30 | 2.54 | 1.59 | 1.08 | 1.37 | 0.74 |
IN. | 4.32 | 1.18 | 1.27 | 0.84 | 1.55 | 2.01 | 2.57 | 2.93 | 1.78 | 1.24 | 1.58 | 0.83 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1989 - 2002, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 91.18 | 108.7 | 82.59 | 106.5 | 122.0 | 131.9 | 163.1 | 148.1 | 127.2 | 92.22 | 87.56 | 78.06 |
MAX | 284 | 179 | 135 | 263 | 306 | 208 | 358 | 286 | 239 | 299 | 155 | 134 |
(WY) | 2002 | 1991 | 1995 | 1993 | 1997 | 1993 | 1993 | 1990 | 1993 | 1996 | 1998 | 2001 |
MIN | 38.4 | 40.9 | 23.5 | 49.5 | 42.2 | 52.5 | 50.5 | 43.5 | 43.6 | 41.7 | 38.0 | 41.1 |
(WY) | 1990 | 2000 | 1990 | 2000 | 1989 | 2000 | 1989 | 1992 | 1992 | 1991 | 1991 | 1991 |
SUMMARY STATISTICS | FOR 2001 CALENDAR YEAR | FOR 2002 WATER YEAR | WATER YEARS 1989 - 2002 | |||
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ANNUAL TOTAL | 45333 | 45003 | ||||
ANNUAL MEAN | 124.2 | 123.3 | 111.4 | |||
HIGHEST ANNUAL MEAN | 152 | 1993 | ||||
LOWEST ANNUAL MEAN | 76.9 | 1989 | ||||
HIGHEST DAILY MEAN | 1560 | Oct 14 | 1560 | Oct 14 | 2700 | Jul 18 1996 |
LOWEST DAILY MEAN | 35 | Jul 15 | 44 | Aug 11 | 12 | Aug 5 1993 |
ANNUAL SEVEN-DAY MINIMUM | 39 | Jul 11 | 47 | Sep 11 | 18 | Aug 16 1992 |
MAXIMUM PEAK FLOW | 1680 | Oct 14 | 3980 | Jul 18 1996 | ||
MAXIMUM PEAK STAGE | 22.13 | Oct 14 | 23.75 | Jul 18 1996 | ||
INSTANTANEOUS LOW FLOW | 33 | Aug 4 | 2.4 | Aug 5 1993 | ||
ANNUAL RUNOFF (CFSM) | 1.64 | 1.63 | 1.47 | |||
ANNUAL RUNOFF (INCHES) | 22.25 | 22.09 | 19.98 | |||
10 PERCENT EXCEEDS | 228 | 243 | 217 | |||
50 PERCENT EXCEEDS | 84 | 80 | 73 | |||
90 PERCENT EXCEEDS | 49 | 51 | 38 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |