Pacific Islands Water Science Center
HAWAII VOLCANIC-ROCK AQUIFER STUDY
ABOUT THE PACIFIC ISLANDS WSC
USGS IN YOUR STATE
USGS Water Science Centers are located in each state.
HAWAII VOLCANIC-ROCK AQUIFER STUDY ó Groundwater Resources Program Regional Assessments
The volcanic-rock aquifers in Hawaii constitute one of the principal aquifers in the United States. The Hawaii aquifers supply water to 1.36 million residents, diverse industries, and a large component of the U.S. military in the Pacific.
The aquifers of individual Hawaiian Islands are isolated by sea water and have limited capacity. Fresh groundwater resources in Hawaii are therefore particularly vulnerable to impacts from human activity and climate change.
As part of an effort to assess the Nationís groundwater resources, the USGS Groundwater Resources Program (GWRP) is conducting a four-year study (2012-2016) of groundwater resources in Hawaii Volcanic-Rock Aquifers. Objectives of this study are to:
[References: Oki and others (1999), Reilly and others (2008), U.S. Census Bureau (2011)]
Map showing thirty of the principal aquifers that account for 94 percent of the total groundwater withdrawal in the United States (from Reilly and others, 2008).
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