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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2025
405820093252501 071N22W06DDA 2008IACRN-8
Sand and gravel aquifers (glaciated regions)
Pleistocene Series
Pleistocene Series
LOCATION - Lat 40°58'20", long 93°25'25" referenced to North American Datum of 1983, in NE 1/4 SE 1/4 SE 1/4 sec.06, T.71 N., R.22 W., Lucas County, IA, Hydrologic Unit 10280201, 900 ft north of the intersection of 170th Avenue and 450th Street, and 3.0 mi northeast of Derby.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 27.3 ft. Upper casing diameter 2.0 in; top of first opening 19.7 ft, bottom of last opening 24.7 ft. Drilled observation well, cased to 27.3 ft. All depths below land-surface datum.
DATUM - Land-surface datum is 1,071.38 ft above North American Vertical Datum of 1988. Measuring point: top of casing, 1.80 ft above land-surface datum, May 14, 2008, 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 April 2009 to February 2011, May 2011 to October 2014.
