USGS Water-Year Summary 2024
411736096170201 015N 10E 3CDDA1 WATERLOO
High Plains aquifer
Holocene Alluvium
LOCATION - Lat 41°17'35.6", long 96°17'01.5" referenced to North American Datum of 1983, in sec.03, T.15 N., R.10 E., Douglas County, NE, Hydrologic Unit 10220003,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 45 ft. Upper casing diameter 2.5 in; top of first opening 34.7 ft, bottom of last opening 44.2 ft.
DATUM - Land-surface datum is 1,121.93 ft above North American Vertical Datum of 1988. Measuring point: Undefined, 2.75 ft above land-surface datum, Mar. 12, 2014 to Sep. 11, 2016; BHI and KRS established MP, 2.73 ft above land-surface datum, Sep. 12, 2016 to present.
PERIOD OF RECORD - May, 2014 to current.
EXTREMES FOR PERIOD OF RECORD - Highest water level, .57 feet above land surface datum, May 28, 2019, (level likely higher during March 15 flooding); lowest, 16.95 feet below land surface datum, August 10, 2019.