LOCATION.-- Lat 41°44'01", long 88°20'00", (NAD 1983) in NW1/4SE1/4 sec.33, T.38 N., R.8 E., Kane County, Hydrologic Unit 07120007, on left bank at dam 0.4 mi upstream from Mill Street bridge in Montgomery, 3.2 mi upstream from Waubansee Creek, and at mile 45.9. |
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DRAINAGE AREA.-- 1,732 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: October 2002 to current year. |
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STAGE: October 2002 to current year. |
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MISCELLANEOUS MEASUREMENTS: Water year 1976. |
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SURFACE-WATER QUALITY |
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CHEMICAL: Water years 1978 to 1990. Additional chemical data for water years 1964, 1972-77 are published in Water-Resources Investigations 78-23 and 79-24 as site DT 38. |
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GAGE.-- Water-stage recorder, phone telemeter, and concrete dam. Datum of gage is 603.52 ft above NGVD of 1929 (603.29 ft NAVD 1988). |
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REMARKS.-- Flow regulated by Algonquin Dam, 36 mi upstream from station; Stratton Lock and Dam (previously known as McHenry Dam), 52 mi upstream from station; and occasionally affected by wind action. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 8,800 ft3/s, May 31, 2004; gage height, 13.92 ft; minimum discharge, 81 ft3/s, July 19, 2005. |
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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 | 247 | 858 | 1270 | 521 | e970 | 2170 | 1690 | 734 | 632 | 168 | 178 | 187 |
2 | 282 | 1160 | 1190 | 672 | 959 | 2020 | 2120 | 714 | 549 | 164 | 163 | 150 |
3 | 281 | 860 | 1140 | 715 | 919 | 1920 | 2070 | 738 | 509 | 190 | 159 | 130 |
4 | 264 | 952 | 1070 | 725 | 868 | 1820 | 1980 | 704 | 548 | 200 | 146 | 131 |
5 | 268 | 992 | 1080 | 790 | 883 | 1620 | 1910 | 620 | 529 | 373 | 145 | 129 |
6 | 256 | 921 | 1190 | 882 | 1020 | 1430 | 1890 | 510 | 497 | 327 | 150 | 123 |
7 | 243 | 989 | 1650 | 927 | 1550 | 1500 | 1930 | 502 | 478 | 277 | 150 | 116 |
8 | 448 | 966 | 1900 | 1070 | 2130 | 1600 | 1850 | 527 | 499 | 241 | 136 | 121 |
9 | 431 | 882 | 1790 | 1040 | 2240 | 1750 | 1790 | 531 | 495 | 204 | 123 | 131 |
10 | 364 | 812 | 1740 | 1030 | 2200 | 1900 | 1770 | 620 | 496 | 183 | 133 | 126 |
11 | 362 | 863 | 1670 | 1020 | 2140 | 1960 | 1770 | 763 | 477 | 174 | 159 | 115 |
12 | 355 | 951 | 1520 | 1330 | 2100 | 2130 | 1990 | 1080 | 449 | 184 | 268 | 102 |
13 | 359 | 926 | 1460 | 3620 | 2230 | 1940 | 2070 | 1020 | 449 | 202 | 330 | 100 |
14 | 365 | 912 | 1390 | 3310 | 2920 | 1880 | 1740 | 996 | 469 | 187 | 253 | 124 |
15 | 378 | 908 | 1210 | 2510 | 3090 | 1810 | 1320 | 956 | 404 | 166 | 235 | 161 |
16 | 346 | 862 | 1170 | 2230 | 3040 | 1760 | 1060 | 983 | 427 | 161 | 218 | 183 |
17 | 300 | 790 | 995 | 2040 | 3080 | 1560 | 916 | 1000 | 438 | 144 | 192 | 177 |
18 | 314 | 774 | 927 | 1780 | 3170 | 1240 | 883 | 1030 | 412 | 123 | 204 | 146 |
19 | 375 | 841 | 613 | 1590 | 3270 | 1220 | 822 | 1640 | 393 | 96 | 356 | 155 |
20 | 398 | 797 | 842 | e1400 | 3270 | 1330 | 826 | 1660 | 349 | 144 | 644 | 164 |
21 | 382 | 793 | e820 | e1300 | 3190 | 1350 | 933 | 1580 | 317 | 216 | 515 | 153 |
22 | 372 | 780 | e730 | 1180 | 3020 | 1360 | 1090 | 1440 | 278 | 207 | 372 | 138 |
23 | 733 | 757 | e680 | e1200 | 2860 | 1400 | 1190 | 1240 | 235 | 203 | 324 | 206 |
24 | 663 | 822 | e620 | e1200 | 2580 | 1440 | 1090 | 1150 | 186 | 182 | 287 | 232 |
25 | 567 | 895 | e620 | e1200 | 2380 | 1720 | 974 | 1090 | 160 | 216 | 263 | 222 |
26 | 592 | 876 | e620 | e1150 | 2160 | 1730 | 831 | 981 | 186 | 297 | 244 | 220 |
27 | 645 | 1190 | e600 | 1160 | 2060 | 1680 | 782 | 803 | 204 | 319 | 229 | 313 |
28 | 623 | 1380 | e560 | 1090 | 2220 | 1660 | 754 | 730 | 198 | 284 | 211 | 707 |
29 | 676 | 1200 | e550 | e1050 | --- | 1620 | 762 | 694 | 198 | 232 | 194 | 781 |
30 | 658 | 1150 | 525 | e1050 | --- | 1600 | 763 | 691 | 209 | 210 | 182 | 653 |
31 | 571 | --- | 524 | e1000 | --- | 1640 | --- | 675 | --- | 205 | 190 | --- |
TOTAL | 13118 | 27859 | 32666 | 41782 | 62519 | 51760 | 41566 | 28402 | 11670 | 6479 | 7353 | 6396 |
MEAN | 423 | 929 | 1054 | 1348 | 2233 | 1670 | 1386 | 916 | 389 | 209 | 237 | 213 |
MAX | 733 | 1380 | 1900 | 3620 | 3270 | 2170 | 2120 | 1660 | 632 | 373 | 644 | 781 |
MIN | 243 | 757 | 524 | 521 | 868 | 1220 | 754 | 502 | 160 | 96 | 123 | 100 |
CFSM | 0.24 | 0.54 | 0.61 | 0.78 | 1.29 | 0.96 | 0.80 | 0.53 | 0.22 | 0.12 | 0.14 | 0.12 |
IN. | 0.28 | 0.60 | 0.70 | 0.90 | 1.34 | 1.11 | 0.89 | 0.61 | 0.25 | 0.14 | 0.16 | 0.14 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 2003 - 2005, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 479 | 984 | 906 | 828 | 1025 | 1477 | 1268 | 2260 | 1722 | 720 | 417 | 276 |
MAX | 776 | 1203 | 1106 | 1348 | 2233 | 2249 | 1474 | 3548 | 4037 | 1182 | 624 | 426 |
(WY) | 2003 | 2004 | 2004 | 2005 | 2005 | 2004 | 2004 | 2004 | 2004 | 2004 | 2004 | 2004 |
MIN | 236 | 820 | 558 | 542 | 332 | 514 | 943 | 916 | 389 | 209 | 237 | 190 |
(WY) | 2004 | 2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2005 | 2005 | 2005 | 2005 | 2003 |
SUMMARY STATISTICS | FOR 2004 CALENDAR YEAR | FOR 2005 WATER YEAR | WATER YEARS 2003 - 2005 | |||
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ANNUAL TOTAL | 521175 | 331570 | ||||
ANNUAL MEAN | 1424 | 908 | ||||
HIGHEST ANNUAL MEAN | 1435 | 2004 | ||||
LOWEST ANNUAL MEAN | 745 | 2003 | ||||
HIGHEST DAILY MEAN | 8600 | May 31 | 3620 | Jan 13 | 8600 | May 31 2004 |
LOWEST DAILY MEAN | 243 | Oct 7 | 96 | Jul 19 | 96 | Jul 19 2005 |
ANNUAL SEVEN-DAY MINIMUM | 263 | Oct 1 | 116 | Sep 7 | 116 | Sep 7 2005 |
MAXIMUM PEAK FLOW | 4080 | Jan 13 | 8800 | May 31 2004 | ||
MAXIMUM PEAK STAGE | 12.79 | Jan 13 | 13.92 | May 31 2004 | ||
INSTANTANEOUS LOW FLOW | 81 | Jul 19 | 81 | Jul 19 2005 | ||
ANNUAL RUNOFF (CFSM) | 0.822 | 0.524 | ||||
ANNUAL RUNOFF (INCHES) | 11.19 | 7.12 | ||||
10 PERCENT EXCEEDS | 3360 | 1930 | 2170 | |||
50 PERCENT EXCEEDS | 828 | 757 | 695 | |||
90 PERCENT EXCEEDS | 414 | 165 | 209 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |