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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, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003 DAILY MEAN VALUES |
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| DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
| 1 | 1.6 | 2.0 | 1.7 | 1.5 | 1.3 | 1.5 | 1.2 | 1.6 | 1.6 | 1.5 | 1.1 | 0.87 |
| 2 | 4.6 | 2.0 | 1.7 | 1.5 | 1.3 | 1.5 | 1.2 | 1.5 | 1.5 | 1.5 | 1.1 | 0.85 |
| 3 | 2.5 | 2.0 | 1.6 | 1.5 | 1.4 | 1.5 | 1.2 | 1.4 | 1.5 | 1.5 | 7.1 | 0.84 |
| 4 | 6.6 | 2.0 | 1.7 | 1.5 | 1.4 | 1.5 | 1.2 | 1.4 | 1.5 | 1.5 | 2.0 | 0.79 |
| 5 | 5.4 | 2.0 | 1.7 | 1.5 | 1.3 | 1.5 | 1.2 | 2.5 | 1.4 | 2.5 | 1.4 | 0.82 |
| 6 | 4.2 | 1.8 | 1.6 | 1.5 | 1.4 | 1.6 | 1.2 | 1.8 | 1.5 | 1.6 | 1.2 | 0.80 |
| 7 | 3.7 | 1.8 | 1.6 | 1.5 | 1.5 | 1.7 | 1.3 | 1.7 | 1.5 | 1.5 | 1.2 | 0.79 |
| 8 | 3.1 | 1.8 | 1.5 | 1.5 | 1.5 | 1.7 | 1.2 | 1.9 | 1.5 | 3.7 | 1.2 | 0.79 |
| 9 | 2.7 | 1.8 | 1.6 | 1.5 | 1.4 | 1.6 | 1.2 | 4.2 | 1.5 | 2.1 | 1.2 | 0.78 |
| 10 | 2.4 | 1.8 | 1.7 | 1.5 | 1.4 | 1.4 | 1.2 | 2.6 | 1.4 | 1.7 | 1.1 | 0.78 |
| 11 | 2.1 | 1.7 | 1.7 | 1.5 | 1.4 | 1.3 | 1.2 | 2.2 | 1.4 | 1.6 | 1.1 | 0.80 |
| 12 | 2.2 | 1.8 | 1.7 | 1.5 | 1.4 | 1.2 | 1.4 | 1.9 | 1.4 | 1.5 | 1.1 | 0.86 |
| 13 | 2.3 | 1.8 | 1.7 | 1.5 | 1.4 | 1.3 | 1.4 | 1.7 | 1.4 | 1.4 | 1.2 | 0.95 |
| 14 | 2.5 | 1.7 | 1.7 | 1.5 | 1.5 | 2.3 | 1.3 | 2.3 | 1.5 | 1.3 | 1.2 | 1.0 |
| 15 | 2.4 | 1.7 | 1.7 | 1.4 | 1.5 | 1.9 | 1.3 | 2.5 | 1.5 | 27 | 1.2 | 0.94 |
| 16 | 2.2 | 1.7 | 1.7 | 1.3 | 1.5 | 1.7 | 1.4 | 2.0 | 1.4 | 2.5 | 1.2 | 0.89 |
| 17 | 2.2 | 1.7 | 1.7 | 1.3 | 1.5 | 1.4 | 1.4 | 1.8 | 1.4 | 2.1 | 1.1 | 0.88 |
| 18 | 2.3 | 1.8 | 1.9 | 1.3 | 1.5 | 1.3 | 1.3 | 1.7 | 1.4 | 1.8 | 1.1 | 0.87 |
| 19 | 2.2 | 1.8 | 2.1 | 1.3 | 1.6 | 1.2 | 1.3 | 1.7 | 1.4 | 1.6 | 1.1 | 0.90 |
| 20 | 2.2 | 1.8 | 1.9 | 1.3 | 1.6 | 1.3 | 1.3 | 2.7 | 1.5 | 1.4 | 1.1 | 0.89 |
| 21 | 2.0 | 1.8 | 1.8 | 1.3 | 1.5 | 1.3 | 1.4 | 2.0 | 1.6 | 13 | 1.1 | 0.89 |
| 22 | 2.0 | 1.7 | 1.7 | 1.3 | 1.5 | 1.3 | 1.3 | 1.8 | 1.7 | 2.3 | 1.1 | 0.96 |
| 23 | 1.9 | 1.8 | 1.7 | 1.2 | 1.5 | 1.4 | 1.3 | 1.7 | 1.6 | 2.1 | 1.0 | 0.96 |
| 24 | 2.0 | 1.7 | 1.7 | 1.2 | 1.5 | 1.4 | 1.3 | 1.5 | 1.6 | 1.7 | 0.85 | 0.96 |
| 25 | 2.2 | 1.7 | 1.7 | 1.3 | 1.4 | 1.4 | 1.4 | 1.5 | 1.7 | 1.5 | 0.83 | 0.93 |
| 26 | 2.1 | 1.7 | 1.7 | 1.3 | 1.5 | 1.3 | 1.5 | 1.4 | 1.9 | 1.3 | 0.86 | 1.0 |
| 27 | 2.0 | 1.7 | 1.7 | 1.3 | 1.4 | 1.2 | 1.3 | 1.4 | 1.6 | 1.3 | 0.85 | 0.99 |
| 28 | 2.0 | 1.7 | 1.6 | 1.3 | 1.5 | 1.3 | 1.2 | 2.2 | 1.6 | 1.2 | 0.84 | 0.99 |
| 29 | 2.0 | 1.7 | 1.6 | 1.3 | --- | 1.2 | 1.2 | 1.6 | 1.5 | 1.2 | 0.83 | 0.97 |
| 30 | 2.0 | 1.7 | 1.7 | 1.3 | --- | 1.2 | 1.3 | 2.3 | 1.5 | 1.1 | 0.84 | 0.97 |
| 31 | 2.0 | --- | 1.5 | 1.3 | --- | 1.2 | --- | 2.0 | --- | 1.2 | 0.84 | --- |
| TOTAL | 81.6 | 53.7 | 52.6 | 43.0 | 40.6 | 44.6 | 38.6 | 60.5 | 45.5 | 89.2 | 39.94 | 26.71 |
| MEAN | 2.63 | 1.79 | 1.70 | 1.39 | 1.45 | 1.44 | 1.29 | 1.95 | 1.52 | 2.88 | 1.29 | 0.89 |
| MAX | 6.6 | 2.0 | 2.1 | 1.5 | 1.6 | 2.3 | 1.5 | 4.2 | 1.9 | 27 | 7.1 | 1.0 |
| MIN | 1.6 | 1.7 | 1.5 | 1.2 | 1.3 | 1.2 | 1.2 | 1.4 | 1.4 | 1.1 | 0.83 | 0.78 |
| CFSM | 0.27 | 0.19 | 0.18 | 0.14 | 0.15 | 0.15 | 0.13 | 0.20 | 0.16 | 0.30 | 0.13 | 0.09 |
| IN. | 0.32 | 0.21 | 0.20 | 0.17 | 0.16 | 0.17 | 0.15 | 0.23 | 0.18 | 0.35 | 0.16 | 0.10 |
| STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1992 - 2003, BY WATER YEAR (WY) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MEAN | 2.22 | 2.05 | 1.98 | 2.33 | 4.57 | 3.95 | 3.88 | 3.30 | 8.43 | 2.98 | 2.06 | 2.12 |
| 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 | 2003 |
| SUMMARY STATISTICS | FOR 2002 CALENDAR YEAR | FOR 2003 WATER YEAR | WATER YEARS 1992 - 2003 | |||
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| ANNUAL TOTAL | 1030.5 | 616.55 | ||||
| ANNUAL MEAN | 2.82 | 1.69 | 3.30 | |||
| HIGHEST ANNUAL MEAN | 6.41 | 1993 | ||||
| LOWEST ANNUAL MEAN | 1.32 | 1995 | ||||
| HIGHEST DAILY MEAN | 28 | Apr 9 | 27 | Jul 15 | 251 | Feb 21 1997 |
| LOWEST DAILY MEAN | 1.4 | Aug 11 | 0.78 | Sep 9 | 0.58 | Mar 10 1996 |
| ANNUAL SEVEN-DAY MINIMUM | 1.5 | Aug 11 | 0.79 | Sep 4 | 0.62 | Mar 9 1996 |
| MAXIMUM PEAK FLOW | 152 | Jul 15 | 571 | Jun 13 1999 | ||
| MAXIMUM PEAK STAGE | 7.10 | Jul 15 | 10.05 | Jun 30 1993 | ||
| INSTANTANEOUS LOW FLOW | 0.74 | Aug 24 | 0.58 | Mar 9 1996 | ||
| ANNUAL RUNOFF (CFSM) | 0.29 | 0.18 | 0.34 | |||
| ANNUAL RUNOFF (INCHES) | 4.00 | 2.39 | 4.68 | |||
| 10 PERCENT EXCEEDS | 4.2 | 2.1 | 4.7 | |||
| 50 PERCENT EXCEEDS | 2.3 | 1.5 | 2.0 | |||
| 90 PERCENT EXCEEDS | 1.6 | 1.00 | 1.1 | |||
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |