USGS Water-Year Summary 2025
212123157535501 3-2153-05 Moanalua Fresh Water Mon. Well, Oahu, HI
Hawaii volcanic-rock aquifers
LOCATION - Lat 21°21'08.1", long 157°53'44.7" referenced to North American Datum of 1983, Honolulu County, HI, Hydrologic Unit 20060000,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 1,246 ft. Upper casing diameter 6 in; top of first opening 24 ft, bottom of last opening 1,246 ft.
DATUM - Land-surface datum is 35.3 ft above undefined vertical datum. Measuring point: notches on TOC, 37.03 ft above Local Mean Sea Level, Apr. 29, 2015 to present.