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 1,297.18 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 2014-23: Records fair except those
for estimated daily discharges and those above 1,500 ft³/s,
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.
PERIOD OF DAILY RECORD1.--WATER TEMPERATURE:
October 2019 to current year. SPECIFIC CONDUCTANCE: October
2019 to current year.
INSTRUMENTATION1.--A continuous water-quality
monitor with water temperature and specific conductance
provides 15-minute-interval readings.
EXTREMES FOR PERIOD OF DAILY
RECORD1.--SPECIFIC CONDUCTANCE: Maximum, 94
uS/cm at 25 °C, Nov. 5, 6, 2019; minimum, 20 uS/cm at
25 °C, Oct. 26, 2021. WATER TEMPERATURE: Maximum, 23.9 °C, Aug.
8, 2022; minimum, -0.1 °C, Feb. 18, 19, 20, 2022, Dec. 24,
2022.
1 Water-Quality Records
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