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USGS 01413500 EAST BRANCH DELAWARE RIVER AT MARGARETVILLE NY

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
    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.
    PERIOD OF RECORD.--February 1937 to current year.
    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).
    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 2014-22: 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.
    PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: September 2018 to current year. SPECIFIC CONDUCTANCE: October 2019 to current year.
    INSTRUMENTATION1.--Water-temperature and specific conductance satellite telemeter provides 15-minute-interval readings.
    EXTREMES FOR PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: Maximum, 25.7 °C, June 28, 2021; 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, 36 uS/cm at 25 °C, Apr. 13, 2020, but may have been lower during periods of equipment malfunction.
    1 Water-Quality Records
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> Rating Information
> Additional Site Information
This station managed by the NY Water Science Center Troy.

Available Parameters Available Period
  
2018-09-20  2023-10-01
1987-04-02  2023-10-01
2007-10-01  2023-10-01
2019-10-08  2023-10-01







 (7)
 
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Summary of all available data for this site
Instantaneous-data availability statement

Temperature, water, degrees Celsius
Most recent instantaneous value: 16.2 10-01-2023   17:30 EST
Graph of Temperature, water, degrees Celsius

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Discharge, cubic feet per second
Most recent instantaneous value: 172 10-01-2023   17:30 EST
Graph of Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Oct 1 based on 86 water years of record more
Min
(1965)		 25th
percen-
tile		 Median Most Recent
Instantaneous
Value Oct 1		 75th
percen-
tile		 Mean Max
(2011)
8.50 25 61 172 189 212 5640

Gage height, feet
Most recent instantaneous value: 2.89 10-01-2023   17:30 EST
Graph of Gage height, feet

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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius
Most recent instantaneous value: 83 10-01-2023   17:30 EST
Graph of Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

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