3-2053-10 Ft. Shafter MW, (W146), Oahu, HI
U.S. Geological Survey
Located in Honolulu County, Hawaii, this groundwater monitoring location is associated with a water well in the Hawaii volcanic-rock aquifers.
Well Construction
| Depth | Description | |
|---|---|---|
| 0.0-155.0 ft | 6.0 in diameter steel casing | |
| 0.0-169.0 ft | 12.0 in diameter steel casing | |
| 155.0-267.0 ft | 11.0 in diameter screen | |
| 169.0-279.0 ft | screen |
No lithology data is available
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Agency U.S. Geological Survey Site Name 3-2053-10 Ft. Shafter MW, (W146), Oahu, HI Site Number 212046157531401 Site Type WELL Lat/Long (NAD83) 21.3428, -157.8847 Well Depth 267 Feet Elevation (LMSL) 21.79 ft Latitude 21.3428333333333 Longitude -157.884666666667 Local Aquifer Name Koolau Volcanic Series, Lava Flows (None) National Aquifer Name Hawaii volcanic-rock aquifers (N600HIVLCC) Aquifer Type UNCONFINED Water-Level Well Type Trend Water-Level Well Characteristics Known Changes Water Quality Network Additional info Link 1 -
Activity Start Date Activity Start Time Characteristic Name Measure Value Units Detection Limit Value Type Sample Fraction Method Name Analytical Method System Sample Method ID Sample Method ID Context Sample Method Name Activity Type Code Data Provided By -
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How do we calculate statistics?
Overall Water Level Statistics (Depth to water, feet below land surface) Lowest Water Level Median Water Level Highest Water Level First Measurement Date Last Measurement Date Number of Measurements Years of Record Latest Value Latest Percentile 5.33 2.43 -9.82 1915-12-01 2026-01-08 387 110.1 3.15 17.6 Statistics Calculated 2026-01-18 Monthly Water Level Statistics (Depth to water, feet below land surface) Month Lowest Median 10th Percentile 25th Percentile 50th Percentile 75th Percentile 90th Percentile Highest Median Number of Measurements Years of Record Jan 4.44 3.90 2.94 2.36 1.46 -7.25 -8.30 32 32 Feb 4.33 4.02 2.75 2.32 0.81 -7.99 -9.10 32 32 Mar 4.45 3.96 2.78 2.25 1.15 -7.90 -9.81 31 31 Apr 4.21 3.83 2.85 2.31 1.12 -7.76 -9.82 32 32 May 4.39 4.07 2.88 2.33 1.18 -7.46 -9.15 31 31 Jun 4.87 3.87 2.95 2.32 1.41 -7.28 -9.00 30 30 Jul 5.01 4.20 3.11 2.42 1.85 -7.04 -8.85 28 28 Aug 5.27 4.31 3.19 2.63 1.77 -6.61 -7.77 30 30 Sep 5.33 4.33 3.28 2.63 0.11 -6.04 -7.12 34 34 Oct 5.33 4.46 3.21 2.75 1.8 -6.31 -6.80 31 31 Nov 5.23 4.37 3.34 2.74 2.00 -3.02 -6.74 29 29 Dec 5.18 4.06 3.01 2.50 1.56 -6.74 -7.08 31 31 Statistics Calculated 2026-01-18 -
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