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Water-Year Summary for Site 01381800

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
01381800 WHIPPANY RIVER NEAR PINE BROOK, NJ
LOCATION - Lat 40°50'42", long 74°20'50" referenced to North American Datum of 1983, Parsip-Troy Hills Twp, Morris County, NJ, Hydrologic Unit 02030103, on left upstream wingwall of former bridge on Edwards Road, 200 ft downstream from bridges of Interstate 280, 0.4 mi upstream from Rockaway River, and 1.2 mi southwest of Pine Brook.
DRAINAGE AREA - 68.5 mi².
REVISIONS HISTORY - WYS-US-2015: 1997. Revisions subsequent to Water Year 2014 can be obtained by using this link.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Low-flow partial-record station water years 1963-69, 1973, 1979-96. November 1992 to September 1996 (gage height and discharge measurements only). Continuous-record gaging station, October 1996 to current year.
GAGE - Water-stage, velocity (from 2005 to current), and water temperature recorder with telemetry and crest-stage gage. Datum of gage is 161.61 ft above NAVD of 1988.
REMARKS - Records fair, except for estimated discharges, which are poor. Flow includes sewage effluent from several treatment plants upstream of gage. Stage-discharge relationship is affected by variable-stage backwater from the Passaic River. Water diverted upstream at Clyde Potts Reservoir on Harmony Brook for municipal supply by the Southeast Morris County Municipal Utilities Authority.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge 2,080 ft³/s, estimated, Oct 20, 1996, maximum recorded gage height, 12.54 ft, Aug 30, 2011, from high-water mark, a higher gage height may have occurred during flood of Oct 20, 1996; minimum discharge, not determined.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water years 1963 to current year.
REMARKS - Discrete water-quality data were collected as part of the New Jersey Ambient Surface-Water-Quality Monitoring Network.