USGS Water-Year Summary 2024
420842090203311 085N05E26ACBD 2014USGS Green Island W11
Sand and gravel aquifers (glaciated regions)
Holocene Alluvium
LOCATION - Lat 42°08'42.0", long 90°20'33.9" referenced to North American Datum of 1983, in NW 1/4 SW 1/4 NE 1/4 sec.26, T.85 N., R.5 E., Jackson County, IA, Hydrologic Unit 07060006,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 17.9 ft. Upper casing diameter 2 in; top of first opening 12.9 ft, bottom of last opening 17.9 ft.
DATUM - Land-surface datum is 597.6 ft above North American Vertical Datum of 1988. Measuring point: top of casing, 2.15 ft above land-surface datum, Dec. 9, 2014 to present.
PERIOD OF RECORD - August 2015 to October 2018.
WATER-QUALITY RECORDS
WELL CHARACTERISTICS - Depth 17.9 ft. Upper casing diameter 2 in; top of first opening 12.9 ft, bottom of last opening 17.9 ft.
DATUM - Land-surface datum is 597.6 ft above North American Vertical Datum of 1988. Measuring point: top of casing, 2.15 ft above land-surface datum, Dec. 9, 2014 to present.
PERIOD OF RECORD - March 2015 to July 2017.