LOCATION.-- Lat 41°34'38", long 87°31'17" (NAD of 1927), in SE1/4NW1/4 sec. 13, T. 36 N., R. 10 E., Lake County, Hydrologic Unit 07120003, on left bank 200 ft upstream from Hohman Avenue bridge at north city limits of Munster, 0.4 mi upstream from Illinois-Indiana State line, 4.6 mi upstream from mouth of Thorn Creek, and at mile 29.6.

DRAINAGE AREA.-- 90.0 mi². During times of floods on Deep River, flow may enter basin from eastern portion of Little Calumet River Basin; or, during times of floods on Hart Ditch, flow may leave the basin and enter eastern portion of the Little Calumet River Basin.

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: June 1958 to current year.

GAGE.-- Water-stage recorder. Datum is 580.72 ft above NGVD of 1929.

REMARKS.--Flow from eastern portion of Little Calumet River Basin is diverted to Lake Michigan by Burns Ditch. Periods of high flow frequently are in backwater from downstream storage.

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1510 ft³/sec, April 28, 1959, gage height, 13.67 ft; maximum gage height, 17.03 ft, November 28, 1990, due to backwater, discharge, 1200 ft³/sec, estimated; minimum daily discharge, 1.9 ft³/s, Aug. 16, 1964.