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DESCRIPTION:

Latitude 21°29'15.5",   Longitude 158°01'38.3"   NAD83
Honolulu County, Hawaii   , Hydrologic Unit 20060000

Well depth: not determined.
Land surface altitude: 850 feet above LMSL.
Well completed in "Hawaii volcanic-rock aquifers" (N600HIVLCC) national aquifer.
Well completed in "Koolau Volcanic Series, Undifferentiated" (120KOLU) local aquifer

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2007-10-01	2025-12-16
Daily Data
Groundwater level above local mean sea level (LMSL), feet	1999-08-24	2025-12-15	22082
Daily Statistics
Groundwater level above local mean sea level (LMSL), feet	1999-08-24	2020-09-07	6652
Monthly Statistics
Groundwater level above local mean sea level (LMSL), feet	1999-08	2020-09
Annual Statistics
Groundwater level above local mean sea level (LMSL), feet	1999	2020
Field groundwater-level measurements	1966-01-16	2025-09-17	477
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1938-11-01	2002-08-20	665
Water-Year Summary	2006	2020	14
Revisions	Loading...
Additional Data Sources	Begin Date	End Date	Count

OPERATION:

Record for this site is maintained by the USGS Pacific Islands Water Science Center

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ADDITIONAL INFORMATION

  

    
Prior to February 2020, site was published as "3-2901-07
    Schofield Shaft, Oahu, HI".