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ALL DATA ARE EASTERN STANDARD TIME

USGS 01350180 SCHOHARIE CREEK AT NORTH BLENHEIM NY

PROVISIONAL DATA SUBJECT TO REVISION

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This station is operated in cooperation with:
   New York Power Authority


LOCATION.--Lat 42°27'57", long 74°27'44" referenced to North American Datum of 1983, Schoharie County, NY, Hydrologic Unit 02020005, on left bank 2,300 ft upstream from West Kill, and 1.2 mi upstream from bridge on State Highway 30 in North Blenheim.
DRAINAGE AREA.--358 mi2.
PERIOD OF RECORD.--Occasional discharge measurements, water years 1969-70. October 1970 to current year (January 20 to September 30, 1996, discharges only for days of mean flow less than or equal to 400 ft3/s).
REVISED RECORDS.--WDR NY-87-1: 1984(M). WDR NY-90-1: Drainage area. WDR-US-2011: 2010(M).
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 794.42 ft above NGVD of 1929. Prior to Oct. 1, 1971, at datum 1.00 ft higher.
REMARKS.--Records fair except those for estimated daily discharges, which are poor. Regulation of flow by New York Power Authority Blenheim-Gilboa Pumped Storage Project immediately upstream from gage. Entire flow, runoff from 315 mi2, except for periods of spill, diverted from Schoharie Reservoir through Shandaken Tunnel into Esopus Creek upstream from Ashokan Reservoir for water supply of City of New York. For days of reservoir outflow greater than 10 ft3/s, see station 01350101. From Jan. 19, 1996, through Sept. 30, 1998, if flow was greater than about 400 ft3/s, undetermined amounts of flow bypassed the gage. From Oct. 1, 1998, through Sept. 30, 2000, if flow was greater than about 2,000 ft3/s, undetermined amounts of flow bypassed the gage. From Oct. 1, 2000, through Sept. 30, 2006, if flow was greater than about 5,000 ft3/s, undetermined amounts of flow bypassed the gage. From Oct. 1, 2006, through Aug. 27, 2011, if flow was greater than about 6,000 ft3/s, undetermined amounts of flow bypassed the gage. From Aug. 28, 2011, through Sept. 30, 2012, if flow was greater than about 30 ft3/s, undetermined amounts of flow bypass the gage. Since October 1996, records for periods when flows bypass the gage are furnished by the New York Power Authority. Satellite gage-height telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 119,000 ft3/s, Aug. 28, 2011, from New York Power Authority, gage height, 22.00 ft, outside gage height was 22.34 ft, from floodmark; minimum, no flow, Oct. 12, 15, Oct. 16 to Nov. 1, Nov. 2, 1972, Sept. 12, 13, 14, 1973.
Derived from NY Annual Water-Data Report 2013

Peak Flow and Stage Information
This station managed by the NY Water Science Center, Troy.

Available Parameters Available Period
All 2 Available Parameters for this site
  
00060 Discharge 2007-10-01  2014-07-31
00065 Gage height 2014-04-02  2014-07-31

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


Discharge, cubic feet per second

Most recent instantaneous value: 18   07-31-2014  10:15 EST
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Daily discharge, cubic feet per second -- statistics for Jul 31 based on 43 years of record more
Min
(1972)
25th
percen-
tile
Median 75th
percen-
tile
Most Recent
Instantaneous
Value Jul 31
Mean Max
(2009)
0.92 6.6 7.8 12 18 116 3930


Gage height, feet

Most recent instantaneous value: 1.14   07-31-2014  10:15 EST
Graph of  Gage height, feet

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Page Contact Information: New York Water Data Support Team
Page Last Modified: 2014-07-31 11:32:32 EDT
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