LOCATION.--Lat 42°32'15.3", long 92°26'35.9" referenced to North American Datum of 1927, in NE 1/4 SW 1/4 NE 1/4 sec.12, T.89 N., R.14 W., Black Hawk County, IA, Hydrologic Unit 07080205, on right bank on downstream side of bridge on State Highway 57 in Cedar Falls, 1.0 mi upstream from Dry Run, and 170.5 mi upstream from mouth. (map)

DRAINAGE AREA.--4,734 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD.--Stage-only records from October 1999 to current year.

REVISED RECORDS.--WDR-US-2008: Datum.

GAGE.--Water-stage recorder. Datum of gage is 763.00 ft above National Geodetic Vertical Datum of 1929. Prior to July 13, 2012, daily gage height values of <83.10 ft indicate stage was at or below this minimum detection stage.

WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water years 1974-1979, 1984-1985, 1987-1995, 2001-2002, 2011-2012. Period of record includes water-quality data published in USGS annual reports and various project reports.

Advanced Hydrologic Prediction Service

City of Cedar Falls

Cooperative Water Program