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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
414101070011001 MA-CGW 138R CHATHAM, MA
Sand and gravel aquifers (glaciated regions)
Outwash
Outwash
LOCATION - Lat 41°41'01", long 70°01'10" referenced to North American Datum of 1983, Barnstable County, MA, Hydrologic Unit 01090002,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 38.07 ft. Upper casing diameter 2 in; top of first opening 35.28 ft, bottom of last opening 38.07 ft.
DATUM - Land-surface datum is 37.22 ft above North American Vertical Datum of 1988. Measuring point: TRANSFER, 0 ft above land-surface datum, Nov. 9, 1962 to Apr. 9, 2018; Black mark on top of white PVC casing, 2.64 ft above land-surface datum, Apr. 9, 2018 to present; Black mark on top of white PVC casing, 39.86 ft above land-surface datum, Nov. 19, 2019 to present.
