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USGS Water-Year Summary 2024
472121122442011 22N/01W-36H01D11
Puget Sound aquifer system
Glacio-Fluviatile
Glacio-Fluviatile
LOCATION - Lat 47°21'19.93", long 122°44'25.25" referenced to North American Datum of 1983, in SE 1/4 NE 1/4 sec.36, T.22 N., R.1 W., Pierce County, WA, Hydrologic Unit 17110019, near Key Center.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 74 ft. Upper casing diameter 1.25 in; top of first opening 71 ft, bottom of last opening 74 ft. Augered observation well, confined.
DATUM - Land-surface datum is 179.38 ft above North American Vertical Datum of 1988. Measuring point: Top of 1.25" pipe (not casing), 2 ft above land-surface datum, Aug. 6, 1992 to present.
PERIOD OF RECORD - August 1992 to October 1993, October 1997 to Aug. 2016 (non-recording gage). Sept. 2016 to current year (water level recorder at same site and datum).
REMARKS - Records good. U. S. Geological Survey satellite telemeter at station.
EXTREMES FOR PERIOD OF RECORD -
Highest instantaneous water level recorded, 22.21 ft below land-surface datum, April 26, 2017; lowest instantaneous recorded, 45.27 ft below land-surface datum, Jan. 6, 2020 for the continuous record.
Highest water level measure was 22.79 ft below land-surface datum on April 5, 2011; lowest measured water level was 44.63 ft below land-surface datum on Dec. 13, 2019 for the discrete record.
