LOCATION.-- Lat 42°30'22", long 88°07'17" (NAD of 1983), in SE1/4NW1/4 sec.34, T.01 N., R.20 E., Kenosha County, Hydrologic Unit 07120066, on downstream side of bridge at Rock Lake Road, 0.3 mi south of Trevor, Wisconsin.

DRAINAGE AREA.-- 1.37 mi².

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: May 1998 to April 1999.

SURFACE-WATER QUALITY

CHEMICAL: May 1998 to April 1999 (WRI report 00-4088).

SEDIMENT: May 1998 to April 1999 (WRI report 00-4088).

METEOROLOGICAL

PRECIPITATION: May 1998 to April 1999 (WRI report 00-4088).

GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 733.12 ft above NGVD of 1929 (732.88 ft NAVD 1988).

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum daily discharge, 73 ft³/s, April 23, 1999; minimum daily discharge, 0.10 ft³/s, August 21-22, 1998.