Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data, such as Earthquake and Water and information needed for public health and safety will be updated with limited support. Additionally, USGS will not be able to respond to inquiries until appropriations are enacted.  For more information, please see www.doi.gov/shutdown

Pacific Islands Water Science Center


The USGS Pacific Islands Water Science Center collects, analyzes, and publishes objective hydrologic data and information needed to make informed decisions about water resources. We are a team of hydrologists, hydrologic technicians, and support staff serving the needs of our communities and our partners in Hawaiʻi and other Pacific Islands. 

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  • Hydrologic Monitoring
  • Groundwater Availability
  • Quantity and Variability of Streamflow
  • Water Quality Related to Land Use