USGS Water-Year Summary 2021
404639074230001 270012 Briarwood School Obs NJ Permit Number 25-14149
Sand and gravel aquifers (glaciated regions)
LOCATION - Lat 40°46'39", long 74°23'00" referenced to North American Datum of 1927, Florham Park Borough, Morris County, NJ, Hydrologic Unit 02030103, at Briarwood School.
WELL CHARACTERISTICS - Depth 110 ft. Upper casing diameter 6 in; top of first opening 100 ft, bottom of last opening 110 ft. Drilled observation well.
DATUM - Land-surface datum is 198 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of shelf, 3.00 ft above land-surface datum, Mar. 1, 1967 to present.
PERIOD OF RECORD - March 1967 to current year.
GAGE - Water-level recorder.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 30.09 ft below land surface datum, Jul 23, 2014; lowest, 65.91 ft below land surface datum, Dec 26, 2002.