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USGS Water-Year Summary 2024
403300074202901 231491- MW134A
Early Mesozoic basin aquifers
Passaic Formation
Passaic Formation
LOCATION - Lat 40°33'00.3", long 74°20'29.4" referenced to North American Datum of 1983, Edison Township, Middlesex County, NJ, Hydrologic Unit 02030104,
REVISIONS HISTORY -
on 9/21/2023:
gross alpha 72hr collected on 8/23/2022 was updated from 0.57 pCi/L to 2.05 pCi/L
gross alpha 30 d collected on 8/23/2022 was updated from 0.72 pCi/L to 2.51pCi/L
gross beta 72hr collected on 8/23/2022 was updated from 0.45pCi/L to 1.59pCi/L
gross beta 30 day collected on 8/23/2022 was updated from 0.49pCi/L to 1.80pCi/L
due to new information from the laboratory.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 34.2 ft. Upper casing diameter 2 in; top of first opening 24.2 ft, bottom of last opening 34.2 ft. Drilled observation well.
DATUM - Land-surface datum is 92 ft above National Geodetic Vertical Datum of 1929. Measuring point: Transfer MP created for migration, 0 ft above land-surface datum, May. 14, 2008 to Sep. 22, 2011; Top of 4 inch protective casing, 2.4 ft above land-surface datum, Sep. 21, 2011 to present; black mark on top of pvc casing, 2.42 ft above land-surface datum, Jul. 10, 2019 to present.
PERIOD OF RECORD -
September 2011 to current year.
AGWQMN QW Sampling: 2008, 2013, 2016, 2019, 2022.
GAGE - Water-level recorder.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 1.15 ft above land surface datum, Dec 8, 2011; lowest, 0.06 ft below land surface datum, Nov 25, 2013.
