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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
390002074541002 090304 Airport Rio Grande Obs NJ Permit Number 37-03763-3
Northern Atlantic Coastal Plain aquifer system
Kirkwood Formation, Upper Sand
Kirkwood Formation, Upper Sand
LOCATION - Lat 39°00'02", long 74°54'10" referenced to North American Datum of 1927, Lower Township, Cape May County, NJ, Hydrologic Unit 02040302, at the Cape May County Airport.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 510 ft. Upper casing diameter 4 in; top of first opening 495 ft, bottom of last opening 505 ft. Drilled artesian well.
DATUM - Land-surface datum is 25 ft above National Geodetic Vertical Datum of 1929. Measuring point: Transfer MP created for migration, 0 ft above land-surface datum, Nov. 2, 1989 to Dec. 3, 1998; TOP OF RECORDER SHELF, 4.65 ft above land-surface datum, Apr. 8, 1991 to Jul. 2, 2000; TOP EDGE OF PROTECTIVE CASING AT LOCK HASP, 2.25 ft above land-surface datum, Dec. 2, 1998 to Dec. 3, 1998; Top of protective casing, 2.5 ft above land-surface datum, Jul. 1, 2002 to present.
PERIOD OF RECORD - February 1990 to October 1992, July 2000 to current year.
GAGE - Water-level recorder.
REMARKS - Water level is affected by nearby pumping.
EXTREMES FOR PERIOD OF RECORD - Max water level, 32.21 ft below land surface datum, Mar 18, 1990; Min water level, 55.57 ft below land surface datum, Sept 5, 2022.
WATER-QUALITY RECORDS
WELL CHARACTERISTICS - Depth 510 ft. Upper casing diameter 4 in; top of first opening 495 ft, bottom of last opening 505 ft. Drilled artesian well.
DATUM - Land-surface datum is 25 ft above National Geodetic Vertical Datum of 1929. Measuring point: Transfer MP created for migration, 0 ft above land-surface datum, Nov. 2, 1989 to Dec. 3, 1998; TOP OF RECORDER SHELF, 4.65 ft above land-surface datum, Apr. 8, 1991 to Jul. 2, 2000; TOP EDGE OF PROTECTIVE CASING AT LOCK HASP, 2.25 ft above land-surface datum, Dec. 2, 1998 to Dec. 3, 1998; Top of protective casing, 2.5 ft above land-surface datum, Jul. 1, 2002 to present.
PERIOD OF RECORD - 1989-11-02 to present. Chloride sampling occurs periodically at this site.
