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SURFACE-WATER RECORDS
LOCATION.--Lat 40°38'51", long 74°58'08"
referenced to North American Datum of 1983, Union Township, Hunterdon
County, NJ, Hydrologic Unit 02030105, on left bank downstream side of
bridge on County Route 635 (Jutland Road), 0.2 mi south of Van Syckel,
0.8 mi north of Perryville, and 0.3 mi upstream from Spruce Run
Reservoir.
DRAINAGE AREA.--11.8 mi².
PERIOD OF RECORD.--Occasional low-flow measurements, water years
1973-77. Continuous-record discharge station July 1977 to current
year.
REVISIONS HISTORY.--WDR NJ-89-1: 1978(P), 1979(P), 1980(P),
1981(P), 1982(P).
GAGE.--Water-stage recorder with telemetry and crest-stage gage.
Datum of gage is 280.25 ft above NGVD of 1929.
REMARKS.--Records fair, except for estimated discharges, which
are poor. Discharges above 1,350 ft³/s from rating curve extension on
basis of logarithmic extrapolation.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,590 ft³/s,
from rating curve extended above 1,350 ft³/s on basis of logarithmic
extrapolation, Sep 20, 1989, gage height, 7.41 ft; minimum discharge,
1.0 ft³/s, Aug 2, 1999.
PERIOD OF RECORD1.--Water years 1976 to current
year.
PERIOD OF DAILY RECORD1.--DISSOLVED OXYGEN: July
2003. DISSOLVED OXYGEN, PERCENT OF SATURATION: July 2003. PH: July
2003. SPECIFIC CONDUCTANCE: July 2003. WATER TEMPERATURE: April 1997 -
October 1998, July 2003.
REMARKS1.--Discrete water-quality data were collected
as part of the
New Jersey Ambient Surface-Water-Quality Monitoring Network.
1 Water-Quality Records
Peak
Flood Chart
National Weather Service flood stage for
this gage is 5.5 ft.
