USGS Water-Year Summary 2024
415600070030702 MA-WNW 157-0070 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 67.6 ft. Upper casing diameter 2 in; top of first opening 15 ft, bottom of last opening 25 ft.
DATUM - Land-surface datum is 4.54 ft above North American Vertical Datum of 1988. Measuring point: Black mark top of PVC casing, 0.3 ft below land-surface datum, Jun. 1, 2017 to present.
PERIOD OF RECORD - July 2017 to August 2022.
GAGE - Electronic submersible pressure sensor recorder
EXTREMES FOR PERIOD OF RECORD - Highest daily water level, 1.72 ft below land-surface datum, Mar. 08 & 09, 2018 ; lowest daily water level, 3.41 ft below land surface datum, Sept. 15, 2020 and Oct. 12, 2020.