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: 169
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Year Published: 1999

Water Budget of East Maui, Hawaii

Ground-water recharge is estimated from six monthly water budgets calculated using long-term average rainfall and streamflow data, estimated pan-evaporation and fog-drip data, and soil characteristics. The water-budget components are defined seasonally, through the use of monthly data, and spatially by broad climatic and geohydrologic areas,...

Shade, Patricia J.
Water Budget of East Maui, Hawaii; 1999; WRI; 98-4159; Shade, Patricia J.

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Year Published: 1999

The Geohydrologic Setting of Pololu Stream, Island of Hawaii, Hawaii

Streamflow measurements indicate that Pololu Stream, which is on the northeastern side of Kohala Volcano, is intermittent, although the stream has previously been interpreted as perennial. The main channel of the stream does not gain water from ground-water sources except at a wetland and shallow pond at the terminus of the stream channel. Ground...

Presley, Todd K.
The Geohydrologic Setting of Pololu Stream, Island of Hawaii, Hawaii; 1999; WRI; 99-4009; Presley, Todd K.

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Year Published: 1999

Ground Water and Surface Water in the Haiku Area, East Maui, Hawaii

The Haiku study area lies on the gently sloping eastern flank of the East Maui Volcano (Haleakala) between the drainage basins of Maliko Gulch to the west and Kakipi Gulch to the east. The study area lies on the northwest rift zone of East Maui Volcano, a geologic feature 3 to 5 miles wide marked by surface expressions such as cinder, spatter, and...

Gingerich, Stephen B.
Ground Water and Surface Water in the Haiku Area, East Maui, Hawaii; 1999; WRI; 98-4142; Gingerich, Stephen B.

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Year Published: 1999

Ground-Water Occurrence and Contribution to Streamflow, Northeast Maui, Hawaii

The study area lies on the northern flank of the East Maui Volcano (Haleakala) and covers about 129 square miles between the drainage basins of Maliko Gulch to the west and Makapipi Stream to the east. About 989 million gallons per day of rainfall and 176 million gallons per day of fog drip reaches the study area and about 529 million gallons per...

Gingerich, Stephen B.
Ground-Water Occurrence and Contribution to Streamflow, Northeast Maui, Hawaii; 1999; WRI; 99-4090; Gingerich, Stephen B.

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Year Published: 1999

Summary of Ground-Water Data for Tutuila and Aunuu, American Samoa, for October 1987 Through September 1997

Ground-water and rainfall data for the period October 1987 through September 1997 from Tutuila and Aunuu, American Samoa, are plotted in time-series graphs and summarized. The data include pumpage and chloride concentrations from 53 production wells on Tutuila, including 5 new wells that were put into production between October 1996 and September...

Izuka, Scot K.
Summary of Ground-Water Data for Tutuila and Aunuu, American Samoa, for October 1987 Through September 1997; 1999; OFR; 99-252; Izuka, Scot K.

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Year Published: 1998

National Water-Quality Assessment Program: Island of Oahu, Hawaii

During the past 25 years, our Nation has sought to improve its water quality; however, many water-quality issues remain unresolved. To address the need for consistent and scientifically sound information for managing the Nation's water resources, the U.S. Geological Survey began a full-scale National Water-Quality Assessment (NAWQA) Program in...

Anthony, Stephen S.
National Water-Quality Assessment Program: Island of Oahu, Hawaii; 1998; FS; 006-98; Anthony, Stephen S.

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Year Published: 1998

Geology, Ground-Water Occurrence, and Estimated Well Yields from the Mariana Limestone, Kagman Area, Saipan, Commonwealth of the Northern Mariana Islands

A study of the geology, ground-water occurrence, and estimated well yields from the Mariana Limestone was done to investigate ground-water availability in the Kagman area, Saipan. The Mariana and Tagpochau Limestone formations form the major aquifer in the Kagman drainage basin. The Mariana Limestone, which is the major water-bearing unit in the...

Hoffmann, John P.; Carruth, Rob; Meyer, William
Geology, Ground-Water Occurrence, and Estimated Well Yields from the Mariana Limestone, Kagman Area, Saipan, Commonwealth of the Northern Mariana Islands; 1998; WRI; 98-4077; Hoffmann, John P.; Carruth, Robert L.; Meyer, William

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Year Published: 1998

Ground Water in the Southern Lihue Basin, Kauai, Hawaii

A multi-phased study of ground-water resources, including well drilling, aquifer tests, analysis of ground-water discharge, and numerical ground-water modeling, indicates that the rocks of the southern Lihue Basin, Kauai, have permeabilities that are much lower than in most other areas of ground-water development in the Hawaiian islands. The...

Izuka, Scot K.; Gingerich, Stephen B.
Ground Water in the Southern Lihue Basin, Kauai, Hawaii; 1998; WRI; 98-4031; Izuka, Scot K.; Gingerich, Stephen B.

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Year Published: 1998

Geohydrology of the Central Oahu, Hawaii, Ground-Water Flow System and Numerical Simulation of the Effects of Additional Pumping

A two-dimensional, finite-difference, ground-water flow model was developed for the central Oahu flow system, which is the largest and most productive ground-water flow system on the island. The model is based on the computer code SHARP which simulates both freshwater and saltwater flow. The ground-water model was developed using average pumping...

Oki, Delwyn S.
Geohydrology of the Central Oahu, Hawaii, Ground-Water Flow System and Numerical Simulation of the Effects of Additional Pumping; 1998; WRI; 97-4276; Oki, Delwyn S.

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Year Published: 1997

Evaluation of the U.S. Geological Survey Ground-Water Data-Collection Program in Hawaii, 1992

In 1992, the U.S. Geological Survey ground-water data-collection program in the State of Hawaii consisted of 188 wells distributed among the islands of Oahu, Kauai, Maui, Molokai, and Hawaii. Water-level and water-quality (temperature, specific conductance, and chloride concentration) data were collected from observation wells, deep monitoring...

Anthony, Stephen S.
Evaluation of the U.S. Geological Survey Ground-Water Data-Collection Program in Hawaii, 1992; 1997; WRI; 97-4232; Anthony, Stephen S.

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Year Published: 1997

Water Budget for the Iao Area, Island of Maui, Hawaii

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

Shade, Patricia J.
Water Budget for the Iao Area, Island of Maui, Hawaii; 1997; WRI; 97-4244; Shade, Patricia J.

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Year Published: 1997

Bedrock geologic map of the El Paso Mountains in the Garlock and El Paso Peaks 7-1/2' quadrangles, Kern County, California

Carr, M.D.; Christiansen, R.L.; Poole, F.G.; Goodge, J.W.
Bedrock geologic map of the El Paso Mountains in the Garlock and El Paso Peaks 7-1/2' quadrangles, Kern County, California; 1997; I; 2389; Carr, M. D.; Christiansen, R. L.; Poole, F. G.; Goodge, J. W.