Pacific Islands Water Science Center

Publications

Publications from the Pacific Islands Water Science Center are geographically grouped.

Search the USGS Pubs Warehouse for products written for the general public and scientists.

Filter Total Items: 173
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Year Published: 1996

Water Budget for the Lahaina District, Island of Maui, Hawaii

Ground-water recharge is estimated as the residual component of a monthly water budget calculated using long-term average rainfall, streamflow, irrigation, pan-evaporation data, and soil characteristics. The water-budget components are defined seasonally, through the use of monthly data, and spatially by topographic and geologic areas, through the...

Shade, Patricia J.
Water Budget for the Lahaina District, Island of Maui, Hawaii; 1996; WRI; 96-4238; Shade, Patricia J.

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Year Published: 1996

Numerical Analysis of Ground-Water Flow and Salinity in the Ewa Area, Oahu, Hawaii

The coastal plain in the Ewa area of southwestern Oahu, Hawaii, is part of a larger, nearly continuous sedimentary coastal plain along Oahu's southern coast. The coastal sediments are collectively known as caprock because they impede the free discharge of ground water from the underlying volcanic aquifers. The caprock is a layered sedimentary...

Oki, Delwyn S.; Souza, William R.; Bolke, Edward I.; Bauer, Glenn R.
Numerical Analysis of Ground-Water Flow and Salinity in the Ewa Area, Oahu, Hawaii; 1996; OFR; 96-442; Oki, Delwyn S.; Souza, William R.; Bolke, Edward I.; Bauer, Glenn R.

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Year Published: 1996

Evaluation of the Surface-Water Quantity, Surface-Water Quality, and Rainfall Data-Collection Programs in Hawaii, 1994

This report documents the results of an evaluation of the surface-water quantity, surface-water quality, and rainfall data-collection programs in Hawaii. Fourteen specific issues and related goals were identified for the surface-water quantity program and a geographic information systems (GIS) data base was developed summarizing information for...

Fontaine, Richard A.
Evaluation of the Surface-Water Quantity, Surface-Water Quality, and Rainfall Data-Collection Programs in Hawaii, 1994; 1996; WRI; 95-4212; Fontaine, Richard A.

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Year Published: 1995

Water Budget for the Island of Kauai, Hawaii

A geographic information system model was created to calculate a monthly water budget for the island of Kauai. Ground-water recharge is the residual component of a monthly water budget calculated using long-term average rainfall, streamflow, and pan-evaporation data, applied irrigation-water estimates, and soil characteristics. The water-budget...

Shade, Patricia J.
Water Budget for the Island of Kauai, Hawaii; 1995; WRI; 95-4128; Shade, Patricia J.

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Year Published: 1995

Evaluation of Ground-Water Resources From Available Data, 1992, East Molokai Volcano, Hawaii

Available ground-water data for East Molokai Volcano consist of well-construction information and records of ground-water pumpage, water levels, and chloride concentrations. Ground-water pumpage records are available for ten wells. Seventeen long-term (10 years or more) records of water-level and/or chloride concentration are available for eleven...

Anthony, Stephen S.
Evaluation of Ground-Water Resources From Available Data, 1992, East Molokai Volcano, Hawaii; 1995; WRI; 95-4180; Anthony, Stephen S.

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Year Published: 1995

Geology, Streamflow, and Water Chemistry of the Talufofo Stream Basin, Saipan, Northern Mariana Islands

A study of the geology, streamflow, and water chemistry of Talufofo Stream Basin, Saipan, Commonwealth of the Northern Mariana Islands, was undertaken to determine the flow characteristics of Talufofo Stream and the relation to the geology of the drainage basin. The Commonwealth government is exploring the feasibility of using water from Talufofo...

Izuka, Scot K.; Ewart, Charles J.
Geology, Streamflow, and Water Chemistry of the Talufofo Stream Basin, Saipan, Northern Mariana Islands; 1995; WRI; 95-4183; Izuka, Scot K.; Ewart, Charles J., III

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Year Published: 1995

Ground-Water Availability from the Hawi Aquifer in the Kohala Area, Hawaii

A ground-water study consisting of test-well drilling, aquifer tests, and numerical simulation was done to investigate ground-water availability in the basal part of the Hawi aquifer between the western drainage divide of Pololu Valley and Upolu Point in Kohala, Hawaii. The test-well drilling provided information on geology, water levels, water...

Underwood, Mark R.; Meyer, William; Souza, William R.
Ground-Water Availability from the Hawi Aquifer in the Kohala Area, Hawaii; 1995; WRI; 95-4113; Underwood, Mark R.; Meyer, William; Souza, William R.

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Year Published: 1995

Numerical Simulation of Regional Changes in Ground-Water Levels and in the Freshwater-Saltwater Interface Induced by Increased Pumpage at Barbers Point Shaft, Oahu, Hawaii

The effect on the regional ground-water system of southern Oahu from increased pumpage at Barbers Point shaft was estimated by a numerical ground-water model developed for the Oahu Regional Aquifer Systems Analysis (RASA) study. The RASA model was updated by revising pumping and ground-water recharge data. Pumpage data used in the new simulations...

Souza, William R.; Meyer, William
Numerical Simulation of Regional Changes in Ground-Water Levels and in the Freshwater-Saltwater Interface Induced by Increased Pumpage at Barbers Point Shaft, Oahu, Hawaii; 1995; WRI; 95-4206; Souza, William R.; Meyer, William

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Year Published: 1995

Water Budget for the Kohala Area, Island of Hawaii

Ground-water recharge is estimated as the residual component of a monthly water budget calculated using long-term average rainfall, streamflow and pan evaporation data, and soil and vegetation characteristics. The water-budget components are defined seasonally, through the use of the monthly water budget, and spatially by topographic and geologic...

Shade, Patricia J.
Water Budget for the Kohala Area, Island of Hawaii; 1995; WRI; 95-4114; Shade, Patricia J.

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Year Published: 1995

Estimated Water Use in 1990, Island of Kauai, Hawaii

The estimated total quantity of freshwater withdrawn on the island of Kauai, Hawaii, in 1990 was 370.84 million gallons per day of which 46.29 million gallons per day (12 percent) was from ground-water sources, and 324.55 million gallons per day (88 percent) was from surface-water sources. An additional estimated 40.94 million gallons per day of...

Shade, Patricia J.
Estimated Water Use in 1990, Island of Kauai, Hawaii; 1995; WRI; 93-4180; Shade, Patricia J.

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Year Published: 1994

Estimation of Magnitude and Frequency of Floods for Streams on the Island of Oahu, Hawaii

This report describes techniques for estimating the magnitude and frequency of floods for the island of Oahu. The log-Pearson Type III distribution and methodology recommended by the Interagency Committee on Water Data was used to determine the magnitude and frequency of floods at 79 gaging stations that had 11 to 72 years of record. Multiple...

Wong, Michael F.
Estimation of Magnitude and Frequency of Floods for Streams on the Island of Oahu, Hawaii; 1994; WRI; 94-4052; Wong, Michael F.

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Year Published: 1993

Geohydrology and Possible Transport Routes of Polychlorinated Biphenyls in Haiku Valley, Oahu, Hawaii

A combination of geologic mapping, seepage runs, water-budget computation, analysis of stream-gaging records, study of stream sediment, and measurement of polychlorinated biphenyls (PCBs) was used to investigate the geohydrology and possible routes of PCB transport from areas of possible contamination in the U.S. Coast Guard's Omega Station in...

Izuka, Scot K.; Hill, Barry R.; Shade, Patricia J.; Tribble, Gordon W.
Geohydrology and Possible Transport Routes of Polychlorinated Biphenyls in Haiku Valley, Oahu, Hawaii; 1993; WRI; 92-4168; Izuka, Scot K.; Hill, Barry R.; Shade, Patricia J.; Tribble, Gordon W.