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LOCATION.--Lat 42°36'33", long 89°04'14", in NE 1/4 sec.28, T.2 N., R.12 E., Rock County, Hydrologic Unit 07090001, on right bank in Afton, 0.3 mi downstream from highway bridge and 1.1 mi upstream from Bass Creek.
DRAINAGE AREA.--3,340 square miles.
PERIOD OF RECORD.--January 1914 to present. Monthly discharge for January 1914 published in WSP 1308.
REVISED RECORDS.--WSP 1238: 1916(M), 1919(M), 1933, 1937-38. 1943. WDR WI-79-1: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 742.36 ft NGVD88. Prior to Aug. 23, 1932, a nonrecording gage 20 ft upstream, and Aug. 23, 1932, to Sept. 30, 1933, water-stage recorder, at same site at datum 1 ft higher.
REMARKS.--Diurnal fluctuation caused by powerplants above station. Gage-height telemeter at station.
OPERATED IN COOPERATION WITH:
U.S. Army Corps of Engineers - Rock Island District
The precipitation data for this station are temporary and will only be displayed for 30 days. Rainfall instrumentation may not be calibrated, and other quality assurance measures may not be performed that would make the data acceptable for archival, retrieval, or future use in general scientific or interpretive studies.
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Value Jul 31