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03260706 Bokengehalas Creek at De Graff, OH LOCATION.--Lat 40°18'40", long 83°54'45", Logan County, OH, Hydrologic Unit 05080001, at DeGraff on right bank 100 ft downstream from bridge on County Road 11, and 1.1 mi upstream from mouth. DRAINAGE AREA.--40.4 mi2. PERIOD OF RECORD.--June 1992 to September 1996, October 1997 to September 2002 recording crest-stage gage; October 2002 to current year. October 1957 to May 1992, at site 2.9 mi upstream published as "near DeGraff" (station 03260700), are not equivalent because of difference in drainage areas. REMARKS.--Diurnal fluctuation caused by municipal plants in Bellefontaine, 12.7 mi upstream, and DeGraff, 0.25 mi upstream. Since storage capacity is small, daily flows are not affected appreciably.
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Value Jun 29