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Water-Year Summary for Site 205405156305401

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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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
205405156305401 6-5430-05, Waiehu deep monitor well, Maui, HI
Hawaii volcanic-rock aquifers
Wailuku Volcanic Series, Lava Flows
LOCATION - Lat 20°54'47.9", long 156°30'46.0" referenced to North American Datum of 1983, Maui County, HI, Hydrologic Unit 20020000, 1.0 mi southwest of intersection of Malaihi Road and Highway 33, and 1.2 mi south of Waihee.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 1,400 ft. Upper casing diameter 10 in; top of first opening 400 ft, bottom of last opening 1,400 ft.  
DATUM - Land-surface datum is 380.18 ft above undefined vertical datum. Measuring point: Top of 10-inch casing, 381.16 ft above Local Mean Sea Level, Oct. 1, 2003 to present. Undefined vertical datum is above local mean sea level.
PERIOD OF RECORD - Occasional measurements, August 1983 to May 1986 and October 2009 to February 2010. Water level recorder, June 1986 to October 2009 and February 2010 to present.
REMARKS - Geophysical log and water-quality records are available in the files of the U.S. Geological Survey.
EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 18.20 ft. above mean sea level, December 14, 1989; lowest water level measured, 7.66 ft. above mean sea level, Oct. 18, 1999.
WATER-QUALITY RECORDS
WELL CHARACTERISTICS - Depth 1,400 ft. Upper casing diameter 10 in; top of first opening 400 ft, bottom of last opening 1,400 ft.  
DATUM - Land-surface datum is 380.18 ft above undefined vertical datum. Measuring point: Top of 10-inch casing, 381.16 ft above Local Mean Sea Level, Oct. 1, 2003 to present. Undefined vertical datum is above local mean sea level.
PERIOD OF RECORD - Occasional measurements, 1982, 1985 to current year.