LOCATION.-- Lat 38°14'56", long 89°50'10" (NAD of 1927), in NE1/4NE1/4 sec.26, T.3 S., R.7 W., St. Clair County, Hydrologic Unit 07140204, on left bank at downstream side of bridge on township road, 0.6 mi upstream from mouth and 3.6 mi southwest of Lenzburg.

DRAINAGE AREA.-- 8.0 mi².

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: May 1978 to May 1980.

GAGE.-- Water-stage recorder. Altitude of gage is 400 ft, from NGVD of 1929.

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 757 ft³/s Apr. 11, 1979, gage height, 14.24 ft; no flow for many days.