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During winter months, cold and ice may result in inaccurate real-time gage height and streamflow data. Adjustments or deletions of this data can only be done after detailed analysis.
National Weather Service action flood stage for this gage is 11.5 ft.
The water temperature data for this station are temporary and will only be displayed for 120 days. Although the instrumentation is calibrated at least once/year, the temporary classification means that documented routine inspections and other quality assurance measures are not performed that would make the data acceptable for archival, retrieval, or future use in general scientific or interpretive studies.
LOCATION.--Lat 40°59'34", long 74°16'44" referenced to North American Datum of 1983, Pompton Lakes Borough, Passaic County, NJ, Hydrologic Unit 02030103, on right bank at Pompton Dam, 450 ft upstream from bridge on Paterson-Hamburg Turnpike in Pompton Lakes, and 2.0 mi upstream from mouth.
DRAINAGE AREA.--160 mi2.
PERIOD OF RECORD.--October 1921 to current year. Prior to November 2004, published as "Ramapo River at Pompton Lakes, NJ (01388000)".
GAGE.--Water-stage recorder. Datum of gage is 190.96 ft above NGVD of 1929. Prior to Oct 1, 1981, at datum 10.0 ft higher.