USGS Water-Year Summary 2023
415600070030701 MA-WNW 157-0033 WELLFLEET, MA
Sand and gravel aquifers (glaciated regions)
Stratified Deposits, Undifferentiated
LOCATION - Lat 41°56'00.31", long 70°03'07.31" referenced to North American Datum of 1983, Barnstable County, MA, Hydrologic Unit 01090002,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 32.71 ft. Upper casing diameter 2 in; top of first opening 27.71 ft, bottom of last opening 32.71 ft.
DATUM - Land-surface datum is 4.40 ft above North American Vertical Datum of 1988. Measuring point: Black mark top of pvc casing, 0.36 ft below land-surface datum, May. 17, 2017 to present.
PERIOD OF RECORD - June 2017 to August 2022.
GAGE - Electronic submersible pressure sensor recorder.
EXTREMES FOR PERIOD OF RECORD - Highest daily water level, 1.56 ft below land-surface datum, Mar. 08, 2018; lowest daily water level, 3.28 ft below land surface datum, Oct. 12 & 13, 2020.