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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
01033000 SEBEC RIVER AT SEBEC, ME
LOCATION - Lat 45°16'12", long 69°06'44" referenced to North American Datum of 1983, Piscataquis County, ME, Hydrologic Unit 01020004, on right bank 1,000 ft downstream from highway bridge at dam at outlet of Sebec Lake at Sebec.
DRAINAGE AREA - 326 mi².
REVISIONS HISTORY - WSP 1171: 1936(M). WSP 1301: 1925. WDR 81-1: Drainage Area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - DISCHARGE: October 1924 to September 1982, October 1984 to September 1993. March 2022 to the current year. October 1924 monthly discharge only, published in WSP 1301.
CHEMICAL ANALYSES: 1954.
MISCELLANEOUS MEASUREMENTS: 2009 to 2011.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 296.29 ft above the National Geodetic Vertical Datum of 1929. Prior to June 22, 1942, at site on the opposite bank, 60 ft downstream at the same datum.
REMARKS - Flow regulated by Sebec Lake, 850 ft upstream.
Water Year 2022: No estimated daily discharges. Records good.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 14,300 ft³/s, Mar. 20, 1936, revised, gage height,14.46 ft, caused by failure of dam at outlet to Sebec Lake; minimum daily discharge, 2.0 ft³/s, Oct. 14-17, 1930, when gates in dam were closed.
