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Water-Year Summary for Site 04156000

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  

Water year 2020: 2019-10-01 to 2020-09-30

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USGS Water-Year Summary 2020
LOCATION - Lat 43°35'43", long 84°14'08" referenced to North American Datum of 1927, in NW 1/4 NE 1/4 sec.28, T.14 N., R.2 E., Midland County, MI, Hydrologic Unit 04080201, on right bank 2,000 ft downstream from dam at Dow Chemical Co. in Midland, 0.7 mi upstream from Bullock Creek, 1.4 mi downstream from Chippewa River, and 23 mi upstream from mouth.
DRAINAGE AREA - 2,400 mi². approximately.
REVISIONS HISTORY - WSP 1045: 1945. WSP 1144: 1948.
PERIOD OF RECORD - March 1936 to current year. Gage-height records for flood seasons collected in this vicinity 1910-26, 1928, are contained in reports of National Weather Service.
GAGE - Water-stage recorder. Datum of gage is 579.47 ft above NAVD 88, converted on July 9, 2020 from NGVD 29 (levels by Wade-Trim Assoc.). Prior to Sept. 30, 1955, at datum 10.20 ft higher, Oct. 1, 1955 to Sept. 30, 1993, at datum 0.20 ft higher.
REMARKS - Prior to 1992 water year, diversion was used in computing annual mean discharge and runoff figures, extremes and daily discharge were not adjusted for diversion. Prior to May 20, 1970, discharge below 4,000 ft³/s regulated by dam 2,000 ft upstream from station; fixed crest dam since.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 51,800 ft³/s, May 20, 2020, gage height, 35.14 ft, from floodmark, result of failure of upstream dams; minimum discharge, 39 ft³/s, Oct. 1, 1942.