LOCATION.-- Lat 41°44'01", long 88°20'00", (NAD 1927) 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. |
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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, 123 ft3/s, Aug. 26, 2003, Sept. 8, 2003. |
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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 2003 TO SEPTEMBER 2004 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 187 | 212 | 728 | 801 | 500 | 904 | 2950 | 1280 | 7570 | 2130 | 514 | 664 |
2 | 187 | 363 | 692 | 781 | e540 | 1070 | 2770 | 1290 | 6650 | 1780 | 470 | 647 |
3 | 195 | 1100 | 684 | 791 | e500 | 1180 | 2630 | 1230 | 6180 | 1550 | 537 | 630 |
4 | 208 | 1410 | 664 | 826 | e460 | 1600 | 2500 | 1080 | 5760 | 1570 | 1140 | 607 |
5 | 230 | 2340 | 672 | 828 | e470 | 3440 | 2310 | 882 | 5360 | 1410 | 909 | 579 |
6 | 247 | 2030 | 622 | 576 | e450 | 3880 | 2170 | 828 | 4980 | 1540 | 727 | 545 |
7 | 243 | 1890 | 577 | 693 | e440 | 3550 | 1850 | 828 | 4430 | 1530 | 613 | 515 |
8 | 225 | 1800 | 561 | 793 | e450 | 3370 | 1600 | 845 | 3650 | 1560 | 557 | 525 |
9 | 233 | 1720 | 626 | 765 | e450 | 3240 | 1460 | 736 | 3390 | 1680 | 541 | 531 |
10 | 239 | 1580 | 1800 | 713 | e450 | 3040 | 1370 | 722 | 3320 | 1860 | 556 | 492 |
11 | 236 | 1280 | 2340 | 649 | e460 | 2660 | 1350 | 1140 | 3850 | 1740 | 601 | 441 |
12 | 222 | 1040 | 2170 | 612 | e450 | 2370 | 1330 | 1380 | 7120 | 1620 | 613 | 416 |
13 | 207 | 906 | 1960 | 598 | e450 | 2280 | 1250 | 1690 | 5710 | 1460 | 630 | 404 |
14 | 448 | 913 | 1830 | 588 | e450 | 2250 | 1120 | 2480 | 4020 | 1320 | 626 | 384 |
15 | 467 | 888 | 1640 | 532 | e450 | 2210 | 1040 | 3070 | 3440 | 1270 | 593 | 359 |
16 | 335 | 908 | 1560 | 618 | e440 | 1810 | 972 | 2830 | 3100 | 1170 | 546 | 417 |
17 | 277 | 873 | 1500 | 583 | e440 | 1430 | 921 | 2760 | 2850 | 1150 | 557 | 429 |
18 | 215 | 1640 | 1420 | 522 | e440 | 1430 | 875 | 3970 | 2740 | 1130 | 528 | 442 |
19 | 189 | 1700 | 1420 | 474 | e440 | 1480 | 761 | 4470 | 2670 | 994 | 534 | 396 |
20 | 200 | 1350 | e1300 | e580 | e480 | 1470 | 855 | 4470 | 2650 | 866 | 505 | 365 |
21 | 197 | 1180 | e1200 | e600 | e520 | 1460 | 1150 | 4920 | 2860 | 756 | 493 | 345 |
22 | 200 | 1120 | 1010 | e540 | e560 | 1420 | 1090 | 6980 | 3320 | 696 | 466 | 333 |
23 | 215 | 1070 | 959 | e510 | e640 | 1320 | 1150 | 7460 | 3340 | 762 | 420 | 338 |
24 | 207 | 1090 | 864 | e440 | e710 | 1560 | 1190 | 6660 | 3410 | 798 | 487 | 313 |
25 | 248 | 1030 | 770 | e440 | e700 | 1780 | 1460 | 6370 | 3450 | 759 | 512 | 286 |
26 | 237 | 1020 | 744 | e440 | e700 | 2150 | 1350 | 6230 | 3350 | 716 | 548 | 275 |
27 | 216 | 999 | 744 | e430 | 723 | 2450 | 1330 | 6090 | 3220 | 658 | 584 | 267 |
28 | 214 | 949 | 794 | e430 | 760 | 2710 | 1320 | 6000 | 3120 | 584 | 999 | 266 |
29 | 193 | 885 | 844 | e430 | 797 | 3680 | 1040 | 5870 | 2990 | 531 | 1010 | 286 |
30 | 190 | 807 | 812 | e420 | --- | 3380 | 1060 | 6840 | 2610 | 531 | 814 | 268 |
31 | 217 | --- | 791 | 411 | --- | 3130 | --- | 8600 | --- | 530 | 713 | --- |
TOTAL | 7324 | 36093 | 34298 | 18414 | 15320 | 69704 | 44224 | 110001 | 121110 | 36651 | 19343 | 12765 |
MEAN | 236 | 1203 | 1106 | 594 | 528 | 2249 | 1474 | 3548 | 4037 | 1182 | 624 | 426 |
MAX | 467 | 2340 | 2340 | 828 | 797 | 3880 | 2950 | 8600 | 7570 | 2130 | 1140 | 664 |
MIN | 187 | 212 | 561 | 411 | 440 | 904 | 761 | 722 | 2610 | 530 | 420 | 266 |
CFSM | 0.14 | 0.69 | 0.64 | 0.34 | 0.31 | 1.30 | 0.85 | 2.05 | 2.33 | 0.68 | 0.36 | 0.25 |
IN. | 0.16 | 0.78 | 0.74 | 0.40 | 0.33 | 1.50 | 0.95 | 2.36 | 2.60 | 0.79 | 0.42 | 0.27 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 2003 - 2004, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 506 | 1012 | 832 | 568 | 432 | 1381 | 1208 | 2932 | 2388 | 975 | 507 | 308 |
MAX | 776 | 1203 | 1106 | 594 | 528 | 2249 | 1474 | 3548 | 4037 | 1182 | 624 | 426 |
(WY) | 2003 | 2004 | 2004 | 2004 | 2004 | 2004 | 2004 | 2004 | 2004 | 2004 | 2004 | 2004 |
MIN | 236 | 820 | 558 | 542 | 332 | 514 | 943 | 2316 | 740 | 768 | 391 | 190 |
(WY) | 2004 | 2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2003 |
SUMMARY STATISTICS | FOR 2003 CALENDAR YEAR | FOR 2004 WATER YEAR | WATER YEARS 2003 - 2004 | |||
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ANNUAL TOTAL | 283657 | 525247 | ||||
ANNUAL MEAN | 777 | 1435 | ||||
HIGHEST ANNUAL MEAN | 1435 | 2004 | ||||
LOWEST ANNUAL MEAN | 745 | 2003 | ||||
HIGHEST DAILY MEAN | 4090 | May 11 | 8600 | May 31 | 8600 | May 31 2004 |
LOWEST DAILY MEAN | 131 | Sep 8 | 187 | Oct 1,2 | 131 | Sep 8 2003 |
ANNUAL SEVEN-DAY MINIMUM | 142 | Sep 7 | 203 | Oct 18 | 142 | Sep 7 2003 |
MAXIMUM PEAK FLOW | 8800 | May 31 | 8800 | May 31 2004 | ||
MAXIMUM PEAK STAGE | 13.92 | May 31 | 13.92 | May 31 2004 | ||
INSTANTANEOUS LOW FLOW | 174 | Oct 29 | 123 | A | ||
ANNUAL RUNOFF (CFSM) | 0.449 | 0.829 | ||||
ANNUAL RUNOFF (INCHES) | 6.09 | 11.28 | ||||
10 PERCENT EXCEEDS | 1600 | 3360 | 2650 | |||
50 PERCENT EXCEEDS | 573 | 844 | 664 | |||
90 PERCENT EXCEEDS | 199 | 327 | 250 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |