USGS Water-Year Summary 2023
425603095250401 094N39W26BDA 2008IACRN-1
Sand and gravel aquifers (glaciated regions)
Pleistocene Series
LOCATION - Lat 42°56'03", long 95°25'04" referenced to North American Datum of 1983, in NE 1/4 SE 1/4 NW 1/4 sec.26, T.94 N., R.39 W., O'Brien County, IA, Hydrologic Unit 10230003, 0.6 mi north of intersection of Yellow Avenue and State Highway 10, and 3.5 mi northwest of Peterson.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 28.5 ft. Upper casing diameter 2.0 in; top of first opening 15.5 ft, bottom of last opening 25.5 ft. Drilled observation well, cased to 28.5 ft. All depths below land-surface datum.
DATUM - Land-surface datum is 1,299.53 ft above North American Vertical Datum of 1988. Measuring point: top of casing, 1.20 ft above land-surface datum, May 7, 2009, to present. Land-surface datum from levels.
PERIOD OF RECORD - Water-level measurements, water years 2009-2015.
GAGE - Water-level recorder.
PERIOD OF DAILY RECORD - Water-level records from December 2008 to October 2014.