LOCATION.--Lat 40°54'51", long 91°48'33"
referenced to North American Datum of 1983, in SE 1/4 NW 1/4 NW 1/4
sec.32, T.71 N., R.8 W., Jefferson County, IA, Hydrologic Unit
07080107, at edge of gravel road in Round Prairie Park, 1,000 ft east
of Tamarack Avenue, and 2.0 mi southwest of Glasgow. (map)
GROUNDWATER RECORDS
WELL CHARACTERISTICS.--Depth 23 ft. Upper casing diameter 2 in;
top of first opening 12.5 ft, bottom of last opening 22.5 ft. Drilled
observation well, cased to 23 ft. All depths below land-surface
datum.
DATUM.--Land-surface datum is 710.05 ft above North American
Vertical Datum of 1988. Measuring point: top of casing, 1.50 ft above
land-surface datum, July 29, 2008, to present. Land-surface datum
from levels.
PERIOD OF RECORD.--Water-level measurements, water years
2009-2015.
PERIOD OF DAILY RECORD.--Water-level records from December 2008 to
October 2014.
GAGE.--Water-level recorder.