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This station is operated in cooperation with:
   New York City Department of Environmental Protection

LOCATION.--Lat 42°06'22", long 74°43'50" referenced to North American Datum of 1983, Delaware County, NY, Hydrologic Unit 02040102, on left bank 0.4 mi upstream from bridge on New York City Road 9 and Pepacton Reservoir, and 2.7 mi southwest of Dunraven.
DRAINAGE AREA.--25.2 mi².
PERIOD OF RECORD.--February 1937 to current year. Published as "at Arena" 1937-67.
REVISIONS HISTORY.--WSP 1432: 1937. WDR NY-82-1: Drainage area. WDR NY-84-1: 1979-83.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 1,298.54 ft Board of Water Supply, City of New York datum and 1,297.22 ft above NAVD of 1988. Prior to Oct. 17, 1939, nonrecording gage at site 0.2 mi downstream at different datum. Oct. 17 to Dec. 8, 1939, nonrecording gage at present site at different datum.
REMARKS.--Water Years 2014-18: Records fair except those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 5,380 ft³/s, Jan. 19, 1996, gage height, 12.56 ft, from rating curve extended above 1,300 ft³/s on basis of flow-through-culvert measurement of peak flow; minimum discharge observed, 1.2 ft³/s, Sept. 25, 26, 1939.

Peak Flow and Stage Information

Gage PhotoStation image


This station managed by the NY Water Science Center Troy.

Available Parameters Available Period
2019-10-09  2019-12-11
1990-10-01  2019-12-11
2007-10-01  2019-12-11
2019-10-09  2019-12-11


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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: 303 12-11-2019   02:15 EST
Graph of  Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Dec 11 based on 81 water years of record more
Median 75th
Mean Most Recent
Value Dec 11
5.20 32 46 75 88 303 1550

Gage height, feet

Most recent instantaneous value: 4.36 12-11-2019   02:15 EST
Graph of  Gage height, feet

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