LOCATION.-- Lat 42°36'39", long 88°13'33", in NW 1/4 NW 1/4 sec.26, T.2 N., R.19 E., Kenosha County, Hydrologic Unit 07120006, on right bank 40 ft downstream from bridge on County Trunk Highway JB, 2.2 mi north of New Munster, and 17.0 mi upstream from Fox Chain of Lakes. |
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DRAINAGE AREA.-- 811 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: October 1939 to current year. Prior to October 1993, published as "at Wilmot" under station number 05546500. |
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REVISED RECORDS.-- WSP 1308: 1943(M), 1945(M). WDR WI-67-1: Drainage area. WDR WI-92-1: 1991. |
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GAGE.-- Water-stage recorder, phone telemeter, and U.S. Corps of Engineers satellite telemeter. Datum of gage is 735.72 ft above NGVD of 1929 (Racine County Surveyor bench mark). Prior to Sept. 1, 1965, nonrecording gage at bridge 400 ft above dam in Wilmot 11 mi downstream at datum 0.50 ft lower, and recording gage Sept. 1, 1965 to Sept. 30, 1993, recording gage 100 ft downstream from bridge at the lower datum. Removal of dam due to damage was completed by Sept. 15, 1992. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 7,520 ft3/s, March 31, 1960, gage height, 9.25 ft, from graph based on gage readings, site and datum then in use; maximum gage height, 14.10 ft, February 21, 1994, ice affected; no flow, October 26, 1945 and August 10, 1990. |
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REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges and periods of discharge below 500 ft3/s, which are fair. |
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 | 398 | 694 | 631 | e480 | e390 | e540 | 512 | 694 | 395 | 306 | 204 | 237 |
2 | 391 | 729 | 612 | e480 | e390 | e540 | 528 | 693 | 414 | 297 | 187 | 340 |
3 | 392 | 690 | 608 | e480 | e380 | e540 | 653 | 733 | 455 | 284 | 205 | 375 |
4 | 361 | 609 | 579 | e480 | e380 | e540 | 635 | 701 | 1220 | 269 | 172 | 428 |
5 | 405 | 574 | 533 | e480 | e380 | e600 | 605 | 663 | 2250 | 244 | 194 | 414 |
6 | 386 | 535 | 576 | e480 | e380 | e660 | 578 | 611 | 2420 | 245 | 171 | 396 |
7 | 361 | 537 | 603 | e480 | e380 | 645 | 584 | 549 | 2130 | 232 | 190 | 312 |
8 | 380 | 542 | 552 | e480 | e390 | 620 | 926 | 551 | 1790 | 225 | 154 | 247 |
9 | 365 | 486 | e500 | e500 | e410 | 1220 | 1780 | 552 | 1510 | 249 | 165 | 256 |
10 | 364 | 437 | e500 | e520 | e490 | 1460 | 2270 | 579 | 1270 | 243 | 177 | 262 |
11 | 416 | 474 | e500 | e540 | e640 | 1450 | 2180 | 599 | 1140 | 245 | 139 | 189 |
12 | 499 | 442 | 501 | e560 | 648 | 1390 | 2020 | 645 | 1060 | 250 | 130 | 213 |
13 | 626 | 480 | 597 | e560 | 663 | 1250 | 1860 | 752 | 852 | 221 | 214 | 180 |
14 | 919 | 700 | 688 | e500 | 593 | 1200 | 1610 | 725 | 826 | 234 | 439 | 204 |
15 | 946 | 788 | 654 | e440 | 521 | 1100 | 1480 | 708 | 811 | 200 | 461 | 173 |
16 | 813 | 750 | 622 | e430 | 563 | 1050 | 1410 | 679 | 727 | 196 | 535 | 190 |
17 | 735 | 691 | e620 | e420 | 512 | 954 | 1250 | 758 | 665 | 189 | 603 | 185 |
18 | 608 | 627 | e600 | e410 | 447 | 840 | 1090 | 685 | 693 | 160 | 677 | 178 |
19 | 487 | 598 | e580 | e390 | 451 | 737 | 1040 | 658 | 649 | 190 | 695 | 262 |
20 | 490 | 598 | e620 | e390 | 721 | 693 | 977 | 599 | 473 | 164 | 640 | 336 |
21 | 493 | 549 | 547 | e410 | 1010 | 679 | 859 | 550 | 554 | 162 | 537 | 345 |
22 | 464 | 536 | 482 | e430 | 1010 | 616 | 856 | 305 | 570 | 157 | 578 | 372 |
23 | 808 | 504 | e480 | e430 | 855 | 575 | 835 | 370 | 436 | 154 | 631 | 325 |
24 | 1470 | 518 | e480 | 411 | 825 | 572 | 687 | 389 | 377 | 154 | 492 | 246 |
25 | 1930 | 590 | e480 | 409 | 809 | 568 | 684 | 474 | 437 | 155 | 498 | 269 |
26 | 1900 | 655 | e480 | e410 | 795 | 515 | 732 | 571 | 381 | 171 | 503 | 251 |
27 | 1780 | 737 | e480 | 410 | 678 | 479 | 710 | 566 | 349 | 229 | 496 | 245 |
28 | 1570 | 633 | e480 | 405 | 556 | 423 | 794 | 549 | 357 | 229 | 413 | 241 |
29 | 1250 | 629 | e480 | 400 | --- | 463 | 782 | 520 | 344 | 285 | 286 | 264 |
30 | 1120 | 626 | e480 | 394 | --- | 503 | 719 | 471 | 332 | 223 | 256 | 303 |
31 | 886 | --- | e480 | e390 | --- | 517 | --- | 391 | --- | 212 | 263 | --- |
TOTAL | 24013 | 17958 | 17025 | 13999 | 16267 | 23939 | 31646 | 18290 | 25887 | 6774 | 11305 | 8238 |
MEAN | 774.6 | 598.6 | 549.2 | 451.6 | 581.0 | 772.2 | 1055 | 590.0 | 862.9 | 218.5 | 364.7 | 274.6 |
MAX | 1930 | 788 | 688 | 560 | 1010 | 1460 | 2270 | 758 | 2420 | 306 | 695 | 428 |
MIN | 361 | 437 | 480 | 390 | 380 | 423 | 512 | 305 | 332 | 154 | 130 | 173 |
CFSM | 0.96 | 0.74 | 0.68 | 0.56 | 0.72 | 0.95 | 1.30 | 0.73 | 1.06 | 0.27 | 0.45 | 0.34 |
IN. | 1.10 | 0.82 | 0.78 | 0.64 | 0.75 | 1.10 | 1.45 | 0.84 | 1.19 | 0.31 | 0.52 | 0.38 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2002, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 391.3 | 480.6 | 452.5 | 427.1 | 548.5 | 1106 | 1076 | 715.5 | 569.9 | 391.8 | 334.1 | 347.3 |
MAX | 1931 | 1536 | 1755 | 1818 | 1386 | 2434 | 3591 | 2078 | 1748 | 1382 | 902 | 1763 |
(WY) | 1987 | 1986 | 1983 | 1960 | 2001 | 1979 | 1993 | 1973 | 2000 | 1969 | 1952 | 1972 |
MIN | 79.5 | 113 | 91.4 | 87.7 | 105 | 252 | 256 | 108 | 124 | 69.2 | 57.2 | 62.7 |
(WY) | 1957 | 1950 | 1964 | 1940 | 1940 | 1968 | 1958 | 1958 | 1988 | 1958 | 1958 | 1946 |
SUMMARY STATISTICS | FOR 2001 CALENDAR YEAR | FOR 2002 WATER YEAR | WATER YEARS 1940 - 2002 | |||
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ANNUAL TOTAL | 298944 | 215341 | ||||
ANNUAL MEAN | 819.0 | 590.0 | 569.7 | |||
HIGHEST ANNUAL MEAN | 1240 | 1993 | ||||
LOWEST ANNUAL MEAN | 174 | 1958 | ||||
HIGHEST DAILY MEAN | 2840 | Jun 14 | 2420 | Jun 6 | 7100 | Apr 1 1960 |
LOWEST DAILY MEAN | 202 | Aug 15 | 130 | Aug 12 | 35 | Sep 9 1958 |
ANNUAL SEVEN-DAY MINIMUM | 255 | Aug 9 | 160 | Jul 20 | 41 | Sep 7 1958 |
MAXIMUM PEAK FLOW | 2480 | Jun 5 | 7520 | Mar 31 1960 | ||
MAXIMUM PEAK STAGE | 11.50 | Jun 5 | 14.10 | Feb 21 1994 | ||
INSTANTANEOUS LOW FLOW | 119 | Aug 11 | 0.00 | Oct 26 1945 | ||
ANNUAL RUNOFF (CFSM) | 1.01 | 0.73 | 0.70 | |||
ANNUAL RUNOFF (INCHES) | 13.71 | 9.88 | 9.54 | |||
10 PERCENT EXCEEDS | 1550 | 1010 | 1280 | |||
50 PERCENT EXCEEDS | 660 | 512 | 373 | |||
90 PERCENT EXCEEDS | 308 | 224 | 127 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |