LOCATION.--Lat 42°11'15.3", long 91°25'05.5"
referenced to North American Datum of 1983, in SW 1/4 SE 1/4 NW 1/4
sec.10, T.85 N., R.5 W., Linn County, IA, Hydrologic Unit 07080102,
at edge of gravel road, 0.3 mi north and 0.2 mi east from
intersection of Prairieburg Road and Maxwell Road, and 3.0 mi south
of Prairieburg. (map)
GROUNDWATER RECORDS
WELL CHARACTERISTICS.--Depth 23 ft. Upper casing diameter 2 in;
top of first opening 18 ft, bottom of last opening 23 ft. Drilled
observation well, cased to 18 ft. All depths below land-surface
datum.
DATUM.--Land-surface datum is 845.78 ft above North American
Vertical Datum of 1988. Measuring point: top of casing, 2.12 ft above
land-surface datum, July 24, 1997, to present. Land-surface datum
from levels.
PERIOD OF RECORD.--Water-level measurements, water years 1997,
1999, 2002, 2005, 2007, 2009-2015.
PERIOD OF DAILY RECORD.--Water-level records from December 2012 to
October 2014.
GAGE.--Water-level recorder.
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Water years 1997, 2002, 2005, 2007, 2009,
2011.
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