05536356 GRAND CALUMET RIVER AT COLUMBIA AV AT HAMMOND, IN
LOCATION - Lat 41°37'07.0", long 87°29'59.4" referenced to North American Datum of 1983, in SE 1/4 NW 1/4 sec.31, T.37 N., R.9 W., Lake County, IN, Hydrologic Unit 07120003, on headwall structure on East side of Columbia Ave at Grand Calumet River.
SURFACE-WATER RECORDS
GAGE - Water-stage recorder. Datum of gage is 573.86 ft above North American Vertical Datum of 1988.