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Water-Year Summary for Site 01402540

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00065 Gage height(Max.,Min.)  

Water year 2022: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2022
LOCATION - Lat 40°31'47", long 74°35'18" referenced to North American Datum of 1983, Manville Borough, Somerset County, NJ, Hydrologic Unit 02030105, on left bank of main channel at downstream side of bridge on Wilhouski Street (Manville Causeway), in Weston, 0.8 mi south of Alma White College, 1.5 mi upstream of confluence with Raritan River, and 1.9 mi north of Millstone. Station is approximately 1.5 mi upstream of confluence with Raritan 
DRAINAGE AREA - 271 mi².
PERIOD OF RECORD - Annual maximum gage, water years, 1997, 1999 to current year.
GAGE - Water-stage recorder with telemetry and crest-stage gage. Datum of gage is 21.9 ft above NGVD of 1929. Prior to Oct 17, 2017 water-stage recorder was located at downstream center pier on bridge on Wilhouski Street (Manville Causeway) over bypass channel at same datum.
REMARKS - Under some flow conditions, gage is affected by backwater from Raritan River. Diurnal fluctuations in gage height possibly due to flow pattern in sewage effluent that enter the river upstream of gage. Annual peak data can be obtained by selecting Peak streamflow from the 'Available data for this site' drop-down menu above or by using this link.
EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 23.21 ft, Sep 17, 1999.
PERIOD OF RECORD - Water years 1976-91, 2006-07.