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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.
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.
This station is subject to backwater from the Passaic River during periods of high flow. At low flows diurnal fluctuations are noted and are probably due to patterns of sewage effluent entering the stream at several points upstream of gage.
LOCATION.--Lat 40°50'42", long 74°20'50" referenced to North American Datum of 1983, Parsippany-Troy Hills Township, 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.
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), October 1996 to current year.
GAGE.--Gage Element from SIMS.
COOPERATION.--New Jersey Department of Environmental Protection and the US Geological Survey.
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Value Aug 25