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Water Resources of the Pacific Islands
Aloha! Welcome to the USGS Web page for the water resources of Hawaii and the Pacific area. This is your direct link to water-resource information and products for the State of Hawaii, the U.S. Territories of Guam and American Samoa, the U.S. Commonwealth of the Northern Mariana Islands, the Republic of Palau, the Republic of the Marshall Islands, and the Federated States of Micronesia.
Current Streamflow Conditions in Hawaii
Wailuku River Flood, Sept. 2016
USGS Groundwater Resources Program
Threatened and Endangered Gages
Active Data-Collection Sites in Hawaii and Guam
Recent Hydrologic Conditions
Synoptic Groundwater-Level Measurements
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Scientific Investigations Report 2017-5042
Measuring surface-water loss in Honouliuli Stream near the ‘Ewa Shaft, O‘ahu, Hawai‘i.
Scientific Investigations Report 2016-5103
Low-Flow Characteristics for Streams on the Islands of Kaua‘i, O‘ahu, Moloka‘i, Maui, and Hawai‘i, State of Hawai‘i.
Scientific Investigations Report 2015-5164
Volcanic Aquifers of Hawai‘i—Hydrogeology, Water Budgets, and Conceptual Models.
Scientific Investigations Report 2015-5128
Storage capacity of the Fena Valley Reservoir, Guam, Mariana Islands, 2014.
Scientific Investigations Report 2015-5010
Spatially Distributed Groundwater Recharge for 2010 Land Cover Estimated Using a Water-Budget Model for the Island of O‘ahu, Hawai‘i.
Scientific Investigations Report 2014-5158
Baseline Water-Quality Sampling to Infer Nutrient and Contaminant Sources at Kaloko-Honokōhau National Historical Park, Island of Hawai‘i, 2009.
Scientific Investigations Report 2014-5168
Spatially Distributed Groundwater Recharge Estimated Using a Water-Budget Model for the Island of Maui, Hawai‘i, 1978–2007.
Open-File Report 2014-1173
Water-Chemistry Data Collected in and near Kaloko-HonokōhauNational Historical Park, Hawai‘i, 2012–2014.
Scientific Investigations Report 2014-5087
Low-Flow Characteristics of Streams in the Lahaina District, West Maui, Hawai‘i.
Scientific Investigations Report 2013-5216
The Effects of Withdrawals and Drought on Groundwater Availability in the Northern Guam Lens Aquifer, Guam.
Ground Water on Tropical Pacific Islands—Understanding a Vital Resource.