USGS Water-Year Summary 2024
05422000 Wapsipinicon River near De Witt, IA
LOCATION - Lat 41°46'01.1", long 90°32'05.48" referenced to North American Datum of 1983, in NE 1/4 SW 1/4 NE 1/4 sec.06, T.80 N., R.4 E., Clinton County, IA, Hydrologic Unit 07080103, on left bank 5 ft upstream from bridge on State Highway 956, 4.0 mi south of water tower in De Witt, 0.9 mi downstream from Silver Creek, 6.2 mi upstream from Brophy Creek, and 18.2 mi upstream from mouth.
DRAINAGE AREA - 2,336 mi².
REVISIONS HISTORY - WSP 1308: 1937(M). WSP 1438: Drainage area. WSP 1708: 1951.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Discharge records from July 1934 to current year.
GAGE - Water-stage recorder. Datum of gage is 598.79 ft above North American Vertical Datum of 1988.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water years 2004 to 2014.