Exploratory drilling and aquifer testing at the Kipahulu District, Haleakala National Park, Maui, Hawaii

Water-Resources Investigations Report 83-4066
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Abstract

An exploratory well, located at 388 feet above sea level in Kipahulu Valley on Maui, Hawaii, was completed and tested in October 1980. The 410-foot well penetrates a series of very dense basaltic lava flows of the Hana Formation. At an elevation of 10 feet above mean sea level, the well penetrated a water-bearing zone of permeable basaltic rock. Water from this zone had a head of about 76 feet above sea level. In October of 1980, the well was pump tested for 9 hours at various discharge rates up to 350 gallons per minute with a maximum drawdown of about 12 feet. Based on the test data, the well should produce water at a rate of 200 gallons per minute with a drawdown of less than 3 feet. The water level in the well was continuously monitored from October 1980 to mid-November 1981, during which period a maximum decline of 20 feet was recorded. Water level fluctuations in the well can be correlated to the flow in nearby Palikea Stream. The long-term water level in the well should stabilize at about 75 feet above sea level. Water quality was excellent. The total dissolved-solids content was 49 milligrams per liter and the chloride content was 4.2 milligrams per liter. (USGS)

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Exploratory drilling and aquifer testing at the Kipahulu District, Haleakala National Park, Maui, Hawaii
Series title Water-Resources Investigations Report
Series number 83-4066
DOI 10.3133/wri834066
Edition -
Year Published 1983
Language ENGLISH
Publisher U.S. Geological Survey,
Description v, 26 p. :ill., maps ;28 cm.