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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.
LOCATION.--Lat 40°44'40", long 74°21'13" referenced to North American Datum of 1983, Millburn Township, Essex County, NJ, Hydrologic Unit 02030103, on left bank just upstream of pumping station intake, 100 ft upstream of bridge on private driveway within New Jersey-American Water Company property, 0.5 mi upstream of mouth, 1.6 mi east of Chatham, and 2.0 mi north of Summit.
DRAINAGE AREA.--11.0 mi2.
PERIOD OF RECORD.--Published 1930-65 in Special Reports of predecessors of the New Jersey Department of Environmental Protection. Fragmentary records for water years 1966-2001 are unpublished but available in the files of the New Jersey Water Science Center or on the web at http://nwis.waterdata.usgs.gov/. October 2001 to current year.
GAGE.--Water-stage recorder upstream and downstream of concrete weir, velocity meter, water temperature sensor, crest-stage gage downstream of control. Datum of gage is 159.64 ft NGVD of 1929.
COOPERATION.--New Jersey Department of Environmental Protection.
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Value Aug 25