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LOCATION--Lat 41°41'01", long 70°01'10",
Barnstable County, Hydrologic Unit 01090002, 50 ft east of Meetinghouse
Road and 100 ft north of Main Street in Chatham.
AQUIFER--Sand and gravel, glaciated regions; outwash deposits.
WELL CHARACTERISTICS--Drilled observation water-table well, depth 39.28 ft, screened 35.28 ft to 38.07 ft.
INSTRUMENTATION--Digital recorder with cellular telephone telemeter, May 2012 to Sept. 2018, (CGW 138), Sept. 2018 to current year (CGW 138R). Monthly measurements prior to May 2012.
DATUM--Elevation of land-surface datum of well is 37.22 ft above North American Vertical Datum of 1988. Measuring point: top of well casing, 2.64 ft above land-surface datum.
PERIOD OF RECORD-- November 1962 to current year.
COOPERATION--Massachusetts Department of Conservation and Recreation, Water Resources Commission.