USGS Water-Year Summary 2024
420545071174001 Norfolk well NNW 27
Sand and gravel aquifers (glaciated regions)
Outwash
LOCATION - Lat 42°05'45", long 71°17'40" referenced to North American Datum of 1927, Norfolk County, MA, Hydrologic Unit 01090001, 15 ft northwest of State Highway 1A and 0.1 mi northeast of Valley Street in Norfolk.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 18.4 ft. Upper casing diameter 2.00 in; top of first opening 16.4 ft, bottom of last opening 18.4 ft.
DATUM - Land-surface datum is 160 ft above National Geodetic Vertical Datum of 1929. Measuring point: top of floor in base of shelter, 3.57 ft above land-surface datum, Aug. 1, 2001, to present.
PERIOD OF RECORD - December 1964 to current year.
GAGE - Digital recorder with satellite telemeter since August 2001. Monthly measurements prior to August 2001.
COOPERATION - Massachusetts Department of Conservation and Recreation, Office of Water Resources.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 3.08 ft below land-surface datum, Mar. 30, 2010; lowest, 7.99 ft below land-surface datum, July 30, 1997.