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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2025
474011117072901 25N/45E-16C01
Columbia Plateau basin-fill aquifers
Scabland Flood Deposits
Scabland Flood Deposits
LOCATION - Lat 47°40'10.74", long 117°07'36.82" referenced to North American Datum of 1983, in NE 1/4 NW 1/4 sec.16, T.25 N., R.45 E., Spokane County, WA, Hydrologic Unit 17010305, near Greenacres.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 128.6 ft. Upper casing diameter 96 in; top of first opening undefined, bottom of last opening undefined. Dug unused irrigation well, water table.
DATUM - Land-surface datum is 2,058.96 ft above North American Vertical Datum of 1988. Measuring point: TOP OF 4"X12" I-BEAM, 0 ft above land-surface datum, Nov. 1, 1921 to Oct. 10, 1971; TOP FACE OF SILL TO SHELTER FOR STAGE RECORDER, 1.55 ft above land-surface datum, Oct. 10, 1971 to May. 28, 2004; MP NO. 1 TOP OF MANHOLE DOOR AT ORANGE MARK, 1.2 ft above land-surface datum, May. 28, 2004 to present; TOP OF MANHOLE DOOR CASING (ORANGE PAINT) (MP9), 1.2 ft above land-surface datum, May. 28, 2004 to present.
PERIOD OF RECORD - November 1921, April 1929 to August 1955, April 1957 to November 2014, November 2016 to current.
REMARKS -
EXTREMES FOR PERIOD OF RECORD - Highest static water level measured, 82.63 ft below land-surface datum, May 30, 1997; lowest measured, 114.53 ft below land-surface datum, Dec. 8, 1931.
