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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.
USGS Water-Year Summary 2024
01388100 RAMAPO RIVER AT DAWES HIGHWAY, AT POMPTON, NJ
LOCATION - Lat 40°59'08", long 74°16'46" referenced to North American Datum of 1983, Pompton Lakes Borough, Passaic County, NJ, Hydrologic Unit 02030103, at downstream right side of bridge on Dawes Highway, 0.5 mi south of Pompton, 0.6 mi downstream of Pompton Lake, and 1.3 mi northeast of Pompton Plains.
DRAINAGE AREA - 160 mi².
REVISIONS HISTORY - WDR-US-2010: 2009(M).
SURFACE-WATER RECORDS
PERIOD OF RECORD - Miscellaneous discharge measurements, water years 1998, 2001-02, 2005. Annual maximum, August 2008 to current.
GAGE - Water-stage recorder with telemetry. Datum of gage is 175.3 ft above NGVD of 1929 (from U.S. Army Corps of Engineers benchmark).
REMARKS - Stage at site affected by operation of flood gates at Pompton Lake Dam, 0.6 mi upstream. Several measurements of water temperature were made during the year. 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 OUTSIDE PERIOD OF RECORD - The flood of April 5-6, 1984 reached a gage height of 12.7 ft, from high-water mark 20 ft downstream of Dawes Highway Bridge. The flood of October 16, 1955 reached a gage height of 10.2 ft, from high-water marks downstream of Dawes Highway Bridge.
EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 13.97 ft, Aug 28, 2011.
