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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
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USGS Water-Year Summary 2024
01413500 EAST BRANCH DELAWARE RIVER AT MARGARETVILLE, NY
LOCATION - Lat 42°08'41", long 74°39'13" referenced to North American Datum of 1983, Delaware County, NY, Hydrologic Unit 02040102, on right bank at downstream side of bridge on Fair Street at intersection with Main Street at Margaretville, 0.2 mi upstream from unnamed tributary, and 1.6 mi downstream from Dry Brook.
DRAINAGE AREA - 163 mi².
REVISIONS HISTORY - WDR NY-87-1: 1948(M), 1951(P), 1953(M), 1955-56(M), 1974-75(M), 1977(M), 1978(P), 1980-81(M), 1986(M).
SURFACE-WATER RECORDS
PERIOD OF RECORD - February 1937 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,302.38 ft above NGVD of 1929 and 1,301.67 ft above NAVD of 1988. Prior to Sept. 9, 1937, nonrecording gage, and Sept. 9, 1937 to Aug. 17, 1944, water-stage recorder, at same site at datum 1.00 ft higher.
REMARKS - Water Years 2014-24: Records good except those for estimated daily discharges, which are fair.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 35,500 ft³/s, Aug. 28, 2011, gage height, 15.97 ft; minimum discharge, 5.0 ft³/s, Aug. 5, 1964; minimum gage height, 0.89 ft, Sept. 30, Oct. 1, 1943, present datum.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - WATER TEMPERATURE: September 2018 to September 2024. SPECIFIC CONDUCTANCE: October 2019 to September 2024.
INSTRUMENTATION - Water-temperature and specific conductance satellite telemeter provides 15-minute-interval readings.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 26.0 °C, July 16, 2024; minimum, -0.1 °C, several days during winter periods.
SPECIFIC CONDUCTANCE: Maximum, 193 uS/cm at 25 °C, Feb. 3, 2022, but may have been higher during periods of equipment malfunction; minimum, 30 uS/cm at 25 °C, Dec. 24, 2022, but may have been lower during periods of equipment malfunction.
