USGS Water-Year Summary 2024
420544071173701 MA-NNW 27R NORFOLK, MA
Sand and gravel aquifers (glaciated regions)
Outwash
LOCATION - Lat 42°05'44", long 71°17'37" referenced to North American Datum of 1983, Norfolk County, MA, Hydrologic Unit 01090001,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 18.65 ft. Upper casing diameter 2 in; top of first opening 15.86 ft, bottom of last opening 18.65 ft.
DATUM - Land-surface datum is 162.6 ft above North American Vertical Datum of 1988. Measuring point: TRANSFER, 0 ft above land-surface datum, Dec. 1, 1964 to Nov. 7, 2017; Black mark on top of white PVC casing, 2.79 ft above land-surface datum, Nov. 7, 2017 to present; Black mark on top of white PVC casing, 165.39 ft above land-surface datum, Aug. 1, 2019 to present.