USGS Water-Year Summary 2024
402138074435801 210365 Carter Rd Obs
Early Mesozoic basin aquifers
Passaic Formation
LOCATION - Lat 40°21'38", long 74°43'58" referenced to North American Datum of 1927, Hopewell Township, Mercer County, NJ, Hydrologic Unit 02030105, Carter Rd.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 99 ft. Upper casing diameter 6 in; top of first opening undefined, bottom of last opening undefined. Drilled observation well.
DATUM - Land-surface datum is 231 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of shelf, 3.00 ft above land-surface datum, Feb. 24, 1987 to present.
PERIOD OF RECORD - February 1987 to current year.
GAGE - Water-level recorder.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 7.25 ft below land surface datum, Apr 15, 2007; lowest, 21.03 ft below land surface datum, Jul 20, 2006.