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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
400416074270101 290138 Colliers Mills 1 Obs
Northern Atlantic Coastal Plain aquifer system
Englishtown Formation
Englishtown Formation
LOCATION - Lat 40°04'14", long 74°27'02" referenced to North American Datum of 1927, Jackson Township, Ocean County, NJ, Hydrologic Unit 02040301, along western shore of Colliers Mills Pond.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 427 ft. Upper casing diameter 6 in; top of first opening 417 ft, bottom of last opening 427 ft. Drilled artesian well.
DATUM - Land-surface datum is 136.52 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of hole in well seal, 2.22 ft above land-surface datum, June 7, 2000, to present.
PERIOD OF RECORD - February 1964 to current year.
GAGE - Submersible logger pressure transducer--60-minute recording interval. Water-level recorder, March 1977 to June 2000. Water-level extremes recorder, October 1976 to March 1977. Periodic measurements, July 1975 to October 1976. Water-level recorder, February 1964 to July 1975.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 52.02 ft below land surface datum, Feb 19, 1964; lowest, 78.18 ft below land surface datum, Sep 16, 1995.
