LOCATION.--Lat 43°05'10", long 93°42'51" referenced to North American Datum of 1983, in SW 1/4 NW 1/4 SW 1/4 sec.32, T.96 N., R.24 W., Hancock County, IA, Hydrologic Unit 07080207, 0.2 mi north of intersection of Nash Avenue and 210th Street, and 1.0 mi south of Duncan. (map)

GROUNDWATER RECORDS

WELL CHARACTERISTICS.--Depth 23.9 ft. Upper casing diameter 2 in; top of first opening 10.5 ft, bottom of last opening 18.0 ft. Drilled observation well, cased to 23.5 ft. All depths below land-surface datum.

DATUM.--Land-surface datum is 1,253.12 ft above North American Vertical Datum of 1988. Measuring point: top of casing, 1.35 ft above land-surface datum, April 23, 2008, to present. Land-surface datum from levels.

PERIOD OF RECORD.--Water-level measurements, water years 2008-2015.

PERIOD OF DAILY RECORD.--Water-level records from July 2008 to October 2014.

GAGE.--Water-level recorder.