LOCATION.--Lat 42°04'09", long 91°47'06" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 SW 1/4 sec.21, T.84 N., R.8 W., Linn County, IA, Hydrologic Unit 07080205, on right bank 5 ft downstream from bridge on Blairs Ferry Road in Palo, 0.6 mi downstream from Bear Creek, 800 ft upstream from Dry Creek, and 100 mi upstream from mouth. (map)

DRAINAGE AREA.--6,342 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD.--Discharge records from March 2009 to current year.

GAGE.--Water-stage recorder. Datum of gage is 725.71 ft above National Geodetic Vertical Datum of 1929.

WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water years 1992, 2001-2002, 2004, 2011-2012. Period of record includes water-quality data published in USGS annual reports and various project reports.

Advanced Hydrologic Prediction Service

Cedar Rapids Water Department

City of Palo

Linn County

Cooperative Water Program