USGS Water-Year Summary 2020
05536179 HART DITCH AT DYER, IN
LOCATION - Lat 41°30'28", long 87°30'36" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 sec.12, T.35 N., R.10 W., Lake County, IN, Hydrologic Unit 07120003, on right bank, 50 ft upstream from 213th Street in Dyer, 0.8 mi upstream from Dyer Ditch, 0.8 mi east of Illinois state line, 3.5 mi east of intersection of U.S. Highway 30 and Interstate 394.
DRAINAGE AREA - 37.6 mi². Drainage area derived from the "Drainage Areas of Indiana Streams" publication
PERIOD OF RECORD - October 1989 to current year.
GAGE - Water-stage recorder. Datum of gage is 607.29 ft above the North American Vertical Datum of 1988. Formerly 607.38 ft above National Geodetic Vertical Datum of 1929.
PERIOD OF RECORD - Temperature: September 2018 to current.
INSTRUMENTATION - Temperature sensor.