USGS Water-Year Summary for Site 01034000

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	00060 Discharge(Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

01034000 PISCATAQUIS RIVER AT MEDFORD, ME

LOCATION - Lat 45°15'38", long 68°52'07" referenced to North American Datum of 1983, Piscataquis County, ME, Hydrologic Unit 01020004, on left bank 2.0 mi southwest of Medford, and 3.3 mi downstream from Pleasant River.

DRAINAGE AREA - 1,162 mi².

REVISIONS HISTORY - WSP 1231: 1936. WSP 1301: 1925-29(M). WDR ME-81-1: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - DISCHARGE: June 1924 to September 1982, October 1989 to current year.

GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 248.68 ft above National Geodetic Vertical Datum of 1929. Prior to Aug. 14, 1929, nonrecording gage at site 1.8 mi downstream at different datum.

REMARKS - Flow regulated by Sebec Lake, 15 mi upstream, and other small reservoirs and power plants above station.

Water Year 2020: Records good, except for estimated daily discharges, which are poor.

Water Year 2019: Records good, except for estimated daily discharges, which are poor.

Water Year 2018: Records good, except for estimated daily discharges, which are poor.

Water Year 2017: Records good, except for period of ice effect, Dec. 9 to Apr. 7, which is poor.

Water Year 2016: Records good, except for periods of ice effect, Dec. 5-6, 8-9, 21-23, Dec. 27 to Jan. 11, Jan. 14 to Feb. 19, Feb. 22-25, and Mar. 1-7, which are poor.

Water Year 2015: Records good, except for periods of ice effect, Nov. 19-23, Nov. 28 to Dec. 10, Dec. 20-22, and Dec. 29 to Apr. 16, which are poor.

Water Year 2014: Records good, except for periods of ice effect, Nov. 24-26, Dec. 1-2, and Dec. 6 to Apr. 14, which are poor.

EXTREMES OUTSIDE PERIOD OF RECORD - Flood of May 1, 1923 reached a stage of 20.8 ft, former site and datum, discharge not determined. Maximum discharge since at least 1923, 85,000 ft³/s, Apr. 1, 1987, gage height 18.65 ft, present datum, from floodmarks, from rating curve extended above 32,000 ft³/s.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 60,100 ft³/s, Nov. 4, 1966, gage height, 15.58 ft; minimum discharge, 77 ft³/s, Sept. 20, 2001, gage height, 1.10 ft.

WATER-QUALITY RECORDS

PERIOD OF RECORD - CHEMICAL ANALYSES: Water years 1952-53.