Click
to
hide
Water-Year
Summary
instructions
and
information
- 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 2025
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: Transfer MP created for migration, 0 ft above land-surface datum, Jan. 29, 1964 to Oct. 28, 1988; TOP OF 6 INCH COUPLING, 2.2 ft above land-surface datum, Oct. 27, 1988 to Jun. 7, 2000; Top of hole in well seal, 2.22 ft above land-surface datum, Jun. 7, 2000 to present.
PERIOD OF RECORD - February 1964 to current year.
GAGE - Water-level recorder.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 52.02 ft below land surface datum, Feb 19, 1964; lowest, 79.53 ft below land surface datum: Sep 22, 2016.
