Funding for this site is provided by:
40°08'48", long 74°07'20" referenced to North
American Datum of 1983, Wall Township, Monmouth County, NJ, Hydrologic
Unit 02040301, on left bank just downstream from pumping station of
Manasquan Water Supply System, 1400 ft upstream from Hospital Road, 1.1
mi west of Allenwood, 1.2 mi downstream from Mill Run, 2.2 mi east of
Squankum, and 7.9 mi upstream of mouth.
PERIOD OF RECORD.--
Annual maximum, 1969-1996, published as
Manasquan River at Allenwood, NJ (station 01408030) at site 1,400 ft
downstream. Continuous-record gaging station, June 1990 to current
WDR NJ-92-1: 1991 Diversions.
Water-stage recorder with telemetry and concrete control.
Datum of gage is NGVD of 1929 (New Jersey Water Supply Authority
Records good, except for estimated discharges, which
are fair. Diversion by New Jersey-American Water Company from Manasquan
Reservoir since 1990 and by Manasquan Water Supply System just upstream
of gage to Manasquan Reservoir for municipal supply since March 1990.
Records of diversions provided by New Jersey Water Supply Authority.
Discharges above 3,900 ft3
/s from rating curve extension on
basis of logarithmic extrapolation.
EXTREMES FOR PERIOD OF RECORD.--
Maximum discharge, 12,600
/s, from rating curve extended above 3,900
/s on basis of logarithmic extrapolation, Aug 28, 2011,
gage height, 20.38 ft, from high-water mark; minimum discharge, 0.00
/s, Jun 24, 1993, result of pumping to Manasquan
Reservoir System or Glendola Reservoir.
PERIOD OF RECORD1.--
Specific Conductance: December 2006 to current year.
Water Temperature: December 2006 to current year.
Turbidity: December 2006 to current year.
The accuracy of continuous water-quality
data can be found here
EXTREMES FOR PERIOD OF DAILY RECORD1.--
WATER TEMPERATURE: Maximum, 25.3°C, Jul 20, 2013; minimum, 0.0°C, on
several days during winters.
TURBIDITY: Maximum, 550 FNU, Apr 30, 2013; minimum, 2.7 FNU, Sep 6,
1 Water-Quality Records