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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 2024
420019091442501 083N08W14AAC 1996USGS CRM-17
Sand and gravel aquifers (glaciated regions)
Holocene Alluvium
Holocene Alluvium
LOCATION - Lat 42°00'19", long 91°44'25" referenced to North American Datum of 1983, in SW 1/4 NE 1/4 NE 1/4 sec.14, T.83 N., R.8 W., Linn County, IA, Hydrologic Unit 07080205,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 20 ft. Upper casing diameter 2 in; top of first opening 17.5 ft, bottom of last opening 20 ft. Drilled observation well, cased to 17.5 ft. All depths below land-surface datum.
DATUM - Land-surface datum is 726.97 ft above North American Vertical Datum of 1988. Measuring point: To TOC, 2.3 ft above land-surface datum, Jul. 25, 1997 to present.
PERIOD OF RECORD - Water-level measurements, water years 1997-2001. Continuous water levels began again on 6/20/19 - present.
WATER-QUALITY RECORDS
WELL CHARACTERISTICS - Depth 20 ft. Upper casing diameter 2 in; top of first opening 17.5 ft, bottom of last opening 20 ft. Drilled observation well, cased to 17.5 ft. All depths below land-surface datum.
DATUM - Land-surface datum is 726.97 ft above North American Vertical Datum of 1988. Measuring point: To TOC, 2.3 ft above land-surface datum, Jul. 25, 1997 to present.
PERIOD OF RECORD - Water years 1996-1998.
