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LOCATION.-- Lat 42°31'18", long 88°39'39" (NAD of 1927), in NE 1/4 NE 1/4 sec.25, T.1 N., R.15 E., Walworth County, Hydrologic Unit 07090006, on right bank 0.9 mi upstream from County Trunk Highway B bridge, 3.2 mi southwest of Walworth. |
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DRAINAGE AREA.-- 9.58 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: September 1992 to current year. |
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GAGE.-- Water-stage recorder and phone telemeter. Elevation of gage is 935 ft above NGVD of 1929, from topographic map. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 571 ft3/s, June 13, 1999, gage height, 9.69 ft; maximum gage height, 10.05 ft, June 30, 1993, discharge, 322 ft3/s; minimum discharge, 0.58 ft3/s, March 9-12, 1996. |
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REMARKS FOR CURRENT YEAR.-- Records fair. |
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| 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 | 2.3 | 2.8 | 2.9 | 2.3 | 2.4 | 2.6 | 2.9 | 3.2 | 3.0 | 2.7 | 1.7 | 1.6 |
| 2 | 2.3 | 2.7 | 2.9 | 2.3 | 2.3 | 2.7 | 2.9 | 3.2 | 2.9 | 2.7 | 1.6 | 2.6 |
| 3 | 2.3 | 2.7 | 2.7 | 2.3 | 2.4 | 2.6 | 2.9 | 3.0 | 3.4 | 2.7 | 1.6 | 2.1 |
| 4 | 2.3 | 2.7 | 2.7 | 2.3 | 2.3 | 2.5 | 3.1 | 2.9 | 28 | 2.7 | 1.7 | 1.8 |
| 5 | 2.3 | 2.7 | 2.7 | 2.3 | 2.3 | 2.5 | 3.2 | 2.9 | 12 | 2.7 | 1.8 | 1.8 |
| 6 | 2.3 | 2.8 | 2.7 | 2.3 | 2.3 | 2.5 | 3.1 | 3.0 | 6.9 | 2.6 | 1.8 | 1.7 |
| 7 | 2.6 | 2.7 | 2.6 | 2.3 | 2.0 | 2.5 | 3.7 | 2.9 | 5.6 | 2.6 | 1.8 | 1.6 |
| 8 | 2.7 | 2.6 | 2.5 | 2.3 | 2.0 | 5.1 | 9.2 | 2.9 | 5.0 | 2.6 | 1.7 | 1.6 |
| 9 | 2.7 | 2.5 | 2.5 | 2.3 | 2.1 | 18 | 28 | 2.9 | 4.6 | 2.7 | 1.6 | 1.6 |
| 10 | 2.9 | 2.5 | 2.5 | 2.3 | 5.4 | 7.3 | 11 | 2.9 | 4.4 | 2.6 | 1.6 | 1.6 |
| 11 | 2.9 | 2.5 | 2.5 | 2.3 | 3.9 | 5.2 | 7.1 | 3.0 | 4.6 | 2.6 | 1.4 | 1.6 |
| 12 | 2.9 | 2.5 | 2.5 | 2.3 | 3.0 | 4.5 | 5.8 | 2.9 | 4.4 | 2.4 | 1.4 | 1.6 |
| 13 | 3.4 | 3.1 | 3.1 | 2.3 | 2.7 | 4.2 | 5.2 | 2.9 | 4.4 | 2.2 | 1.5 | 1.6 |
| 14 | 4.5 | 5.8 | 2.9 | 2.3 | 2.7 | 4.0 | 4.9 | 2.9 | 4.5 | 2.1 | 1.6 | 1.6 |
| 15 | 3.5 | 5.0 | 2.7 | 2.3 | 2.7 | 3.8 | 4.6 | 2.9 | 4.4 | 2.1 | 1.6 | 1.6 |
| 16 | 3.1 | 3.9 | 2.7 | 2.2 | 2.6 | 3.5 | 4.3 | 3.1 | 4.2 | 2.0 | 1.5 | 1.6 |
| 17 | 2.9 | 3.5 | 2.7 | 2.3 | 2.5 | 3.5 | 4.2 | 2.9 | 4.2 | 2.0 | 1.5 | 1.6 |
| 18 | 2.9 | 3.3 | 2.7 | 2.3 | 2.5 | 3.3 | 4.0 | 2.9 | 4.0 | 2.0 | 1.6 | 1.6 |
| 19 | 3.0 | 3.1 | 2.8 | 2.3 | 3.1 | 3.2 | 3.8 | 2.9 | 3.9 | 2.0 | 1.6 | 5.2 |
| 20 | 3.0 | 2.9 | 2.7 | 2.3 | 4.5 | 3.0 | 3.6 | 2.9 | 3.8 | 1.9 | 1.6 | 2.8 |
| 21 | 2.7 | 2.9 | 2.7 | 2.3 | 4.9 | 2.9 | 3.7 | 2.7 | 3.5 | 1.9 | 1.6 | 2.3 |
| 22 | 2.5 | 2.8 | 2.7 | 2.3 | 4.0 | 2.9 | 3.7 | 2.7 | 3.4 | 1.8 | 2.2 | 2.1 |
| 23 | 7.6 | 2.7 | 2.7 | 2.2 | 3.5 | 2.9 | 3.6 | 2.8 | 3.4 | 1.8 | 2.0 | 2.1 |
| 24 | 9.7 | 3.5 | 2.7 | 2.2 | 3.4 | 2.9 | 3.7 | 2.8 | 3.3 | 1.6 | 1.9 | 2.2 |
| 25 | 8.1 | 3.6 | 2.5 | 2.0 | 3.2 | 2.9 | 3.6 | 3.3 | 3.1 | 1.6 | 1.8 | 1.8 |
| 26 | 5.0 | 3.3 | 2.5 | 2.0 | 3.1 | 2.9 | 3.5 | 3.2 | 3.3 | 1.6 | 1.8 | 1.7 |
| 27 | 4.1 | 3.0 | 2.5 | 2.0 | 2.9 | 2.9 | 3.6 | 3.1 | 3.2 | 1.6 | 1.6 | 1.6 |
| 28 | 3.5 | 2.9 | 2.5 | 2.1 | 2.9 | 2.9 | 3.8 | 2.8 | 3.1 | 1.6 | 1.6 | 1.6 |
| 29 | 3.8 | 2.9 | 2.5 | 2.1 | --- | 2.9 | 3.6 | 2.9 | 3.0 | 1.8 | 1.6 | 1.7 |
| 30 | 3.7 | 2.9 | 2.5 | 2.2 | --- | 2.9 | 3.3 | 2.8 | 3.0 | 1.8 | 1.6 | 1.5 |
| 31 | 2.9 | --- | 2.5 | 2.4 | --- | 2.9 | --- | 3.0 | --- | 1.7 | 1.6 | --- |
| TOTAL | 110.4 | 92.8 | 82.3 | 69.7 | 83.6 | 118.4 | 153.6 | 91.2 | 150.5 | 66.7 | 51.5 | 57.4 |
| MEAN | 3.561 | 3.093 | 2.655 | 2.248 | 2.986 | 3.819 | 5.120 | 2.942 | 5.017 | 2.152 | 1.661 | 1.913 |
| MAX | 9.7 | 5.8 | 3.1 | 2.4 | 5.4 | 18 | 28 | 3.3 | 28 | 2.7 | 2.2 | 5.2 |
| MIN | 2.3 | 2.5 | 2.5 | 2.0 | 2.0 | 2.5 | 2.9 | 2.7 | 2.9 | 1.6 | 1.4 | 1.5 |
| CFSM | 0.37 | 0.32 | 0.28 | 0.23 | 0.31 | 0.40 | 0.53 | 0.31 | 0.52 | 0.22 | 0.17 | 0.20 |
| IN. | 0.43 | 0.36 | 0.32 | 0.27 | 0.32 | 0.46 | 0.60 | 0.35 | 0.58 | 0.26 | 0.20 | 0.22 |
| STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1992 - 2002, BY WATER YEAR (WY) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MEAN | 2.178 | 2.077 | 2.013 | 2.422 | 4.882 | 4.204 | 4.145 | 3.430 | 9.124 | 2.993 | 2.135 | 2.234 |
| MAX | 3.68 | 3.29 | 4.54 | 5.85 | 13.1 | 12.0 | 12.4 | 6.92 | 17.2 | 6.22 | 4.27 | 4.48 |
| (WY) | 1994 | 1993 | 1993 | 1993 | 1997 | 1993 | 1993 | 2000 | 1999 | 1993 | 1993 | 1993 |
| MIN | 1.24 | 1.08 | 0.99 | 1.16 | 1.23 | 0.69 | 1.00 | 1.95 | 1.38 | 1.07 | 1.02 | 0.89 |
| (WY) | 1996 | 1997 | 1998 | 1996 | 1995 | 1996 | 1996 | 1995 | 1995 | 1995 | 1995 | 1995 |
| SUMMARY STATISTICS | FOR 2001 CALENDAR YEAR | FOR 2002 WATER YEAR | WATER YEARS 1992 - 2002 | |||
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| ANNUAL TOTAL | 1551.8 | 1128.1 | ||||
| ANNUAL MEAN | 4.252 | 3.091 | 3.464 | |||
| HIGHEST ANNUAL MEAN | 6.41 | 1993 | ||||
| LOWEST ANNUAL MEAN | 1.32 | 1995 | ||||
| HIGHEST DAILY MEAN | 89 | Jun 12 | 28 | Apr 9 | 251 | Feb 21 1997 |
| LOWEST DAILY MEAN | 1.8 | Jan 23 | 1.4 | Aug 11 | 0.58 | Mar 10 1996 |
| ANNUAL SEVEN-DAY MINIMUM | 1.8 | Jan 22 | 1.5 | Aug 11 | 0.62 | Mar 9 1996 |
| MAXIMUM PEAK FLOW | 90 | Jun 4 | 571 | Jun 13 1999 | ||
| MAXIMUM PEAK STAGE | 6.42 | Jun 4 | 10.05 | Jun 30 1993 | ||
| INSTANTANEOUS LOW FLOW | 1.2 | Jul 23 | 0.58 | Mar 9 1996 | ||
| ANNUAL RUNOFF (CFSM) | 0.44 | 0.32 | 0.36 | |||
| ANNUAL RUNOFF (INCHES) | 6.03 | 4.38 | 4.91 | |||
| 10 PERCENT EXCEEDS | 6.4 | 4.3 | 4.9 | |||
| 50 PERCENT EXCEEDS | 3.1 | 2.7 | 2.2 | |||
| 90 PERCENT EXCEEDS | 2.3 | 1.6 | 1.1 | |||
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |