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LOCATION--Lat 42°03'05", long 72°58'14",
Hampden County, Hydrologic Unit 01080207, at Granville State Forest, 20
ft west of West Hartland Road and 0.9 mi north of state boundary in
AQUIFER--Sand and gravel, glaciated regions; stratified deposits.
WELL CHARACTERISTICS--Drilled observation water-table well, depth 22.0 ft, screened 17.9 ft to 20.9 ft.
INSTRUMENTATION--Digital recorder with cellular telephone telemeter, Feb. 2014 to Sept. 2018 (GLW 6), Sept. 2018 to current year (GLW 6R). Monthly measurements prior to Feb. 2014.
DATUM--Elevation of land-surface datum of well is 1,159.37 ft above North American Vertical Datum of 1988, from topographic map. Measuring point: top of PVC in shelter, 2.93 ft above land-surface datum.
PERIOD OF RECORD-- November 1964 to current year.
COOPERATION BY--Massachusetts Department of Conservation and Recreation, Office of Water Resources.