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Water-Year Summary for Site 212238157561101

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Available Parameters
72150 Elevation, GW, LMSL(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
212238157561101 3-2256-10 Aiea, U.S. Navy (187-B), Oahu, HI
Hawaii volcanic-rock aquifers
Koolau Volcanic Series, Lava Flows
LOCATION - Lat 21°22'26.0", long 157°56'00.5" referenced to North American Datum of 1983, Honolulu County, HI, Hydrologic Unit 20060000, 0.4 mi. southwest of Aiea Elementary School, 0.4 mi. southeast of the Aiea Post Office, and 0.5 mi. east of McGrew Point.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 173 ft. Upper casing diameter 12 in; top of first opening 143 ft, bottom of last opening 173 ft.
DATUM - Land-surface datum is 5.77 ft above undefined vertical datum. Measuring point: Top of casing, 26.15 ft above Local Mean Sea Level, Jan. 1, 1928 to Apr. 13, 2006; Top of casing, 26.07 ft above Local Mean Sea Level, Apr. 13, 2006 to Aug. 17, 2011; Arrow on top of casing, 26.07 ft above Local Mean Sea Level, Aug. 17, 2011 to present.  
PERIOD OF RECORD - Water level measurements, January 1928 to February 1931, September 1934 to August 1966. Water-level recorder, September 1966 to October 7, 2015. Discrete measurements, October 7, 2015 to present. Prior to February 2020, published as "3-2256-10 Aiea US Navy (187-B), Oahu, HI".
REMARKS - Water-quality records for 1923, 1928-30, 1934-68, 1972, 1974-75 are available in files of USGS Hawaii District office.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 25.90 ft above mean sea level, January 16, 1928; lowest measured, 12.97 ft above mean sea level, October 5, 1978.