Browsing WRRC Project Reports by Title

Now showing items 69-88 of 88

WRRCTR No. 60 The Quality of Coastal Waters: First Annual Progress Report

Lau, L Stephen (Water Resources Research Center, University of Hawaii at Manoa, 1972-09)

The nature and results of the first year of experimental and evaluative work of the Coastal Water Quality project of the University of Hawaii's Sea Grant Program are summarized in this report. The project is a multi-directional, ...
WRRCTR No. 65 Tritium Measurement of Natural Waters on Oahu, Hawaii: A Preliminary Interpretation (Sampling Perio: July 1969 to June 1970)

Hufen, Theodorus H; Buddemeier, Robert W; Lau, L Stephen (Water Resources Research Center, University of Hawaii at Manoa, 1973-05)

Water samples collected from various surface and sub-surface sources on the island of Oahu were analyzed for tritium levels. Tritium activity levels in twenty-five monthly rainwater samples show a seasonal dependence with ...
WRRCTR No. 66 The Response to Tidal Fluctuations of a Leaky Aquifer System

Williams John A; Liu, Ta-Chiang (Water Resources Research Center, University of Hawaii at Manoa, 1973-07)

A system of two isotropic and homogeneous infinite aquifers, which are separated by an aquitard and subject to tidal fluctuations along their coastal boundary, has been analyzed and a mathematical model has been developed ...
WRRCTR No. 67 Rainfall Intensity Instruments and Measurements

Fullerton, Charles M; Raymond, David J (Water Resources Research Center, University of Hawaii at Manoa, 1973-07)

Two instruments have been used to measure the rate of rainfall from tropical clouds over the windward coast of the Island of Hawaii. The Workman intensity gauge employs strain gauges to sense the deflection in a movable ...
WRRCTR No. 68 Optimum Drilling Sites for Ground-Water Development on the East Coast of Lanai Island

Adams, William M; Huber, Richie D (Water Resources Research Center, University of Hawaii at Manoa, 1973-07)

For a proposed reforestation of the canyon country of east Lanai, seedlings will be required. The seedlings could be grown in east Lanai, preventing the stress of transplantation from a different environment, if an adequate ...
WRRCTR No. 69 Three-Dimensional Zone Model Log Interpretation

Shamey, Louis J; Adams, William M (Water Resources Research Center, University of Hawaii at Manoa, 1973-09)

To facilitate the interpretation of geophysical electrical well logging data, the apparent resistivity has been calculated in a model in which the experimental situation is approximated by three coaxial cylindrical zones ...
WRRCTR No. 70 Evaluation of Methods of Pumping Test Analyses for Application to Hawaiian Aquifers

Williams, John A; Soroos, Ronald L (Water Resources Research Center, University of Hawaii at Manoa, 1973-07)

Pumping test data from eight locations including the islands of Oahu, Maui, and Molokai were selected and analyzed. The test data were selected on the basis of completeness, reliability, and aquifer type and boundary ...
WRRCTR No. 71 Baseline Quality Data for Kalihi Stream

Matsushita, Gordon K; Young, Reginald HF (Water Resources Research Center, University of Hawaii at Manoa, 1973-06)

The purpose of this study was to determine the changes in stream water quality related to variations in land use patterns and to establish some baseline data for assessing the Hawaii State Water Quality Standards for surface ...
WRRCTR No. 72 Some Statistical Analyses of Hawaiian Rainfall

Cheng, Edmond DH; Lau, L Stephen (Water Resources Research Center, University of Hawaii at Manoa, 1973-08)

Monthly rainfall data of several stations in Kalihi Basin, Manoa Basin, and Kaneohe Area, all on Oahu, and the central sloping area of Molokai were correlated to watershed parameters of the areas. Distance measured from ...
WRRCTR No. 73 Application of Reverse Osmosis Technology to Hawaiian Low Quality Waters

Chang, Bei-Jiann; Young, Reginald HF; Chou, James CS (Water Resources Research Center, University of Hawaii at Manoa, 1973-11)

A study of the application of reverse osmosis technology to the treatment of Hawaiian low quality waters was conducted. The purpose of the study was to investigate the technical and economical feasibility of utilizing ...
WRRCTR No. 74 A Preliminary Report on Urban Hydrology and Urban Water Resources: Oahu, Hawaii

Fok, Yu-Si (Water Resources Research Center, University of Hawaii at Manoa, 1973-10)

The major tasks under Phase II of the project were to: (1) adapt and evaluate several existing watershed simulation models for their applicability under local conditions, (2) expand the data collection effort in the research ...
WRRCTR No. 75 Neutron Well Logging in Hawaii

Peterson, Frank L (Water Resources Research Center, University of Hawaii at Manoa, 1974-02)

In 1970, the Water Resources Research Center initiated a study of neutron well logging techniques in Hawaii. The primary objective of this study was to apply neutron logging techniques to the problem of obtaining reliable ...
WRRCTR No. 76 A Study of the Effects of Secondary Effluent on Waimano and Waiawa Streams

Aoyama, Stephen S; Young, Reginald HF (Water Resources Research Center, University of Hawaii at Manoa, 1974-05)

A field study was made between September 1972 to May 1973 to assess the water quality changes in Waiawa and Waimano Streams, particularly the effect of chlorinated effluent from the Pacific Palisades Sewage Treatment Plant ...
WRRCTR No. 77 The Quality of Coastal Waters: Second Annual Progress Report

Lau, L Stephen (Water Resources Research Center, University of Hawaii at Manoa, 1973-09)

This report summarizes the results of the second year of investigative and evaluative work of the University of Hawaii's Sea Grant Program project, "Quality of Coastal Waters" The general objectives of this multidisciplinary ...
WRRCTR No. 78 Some Characteristics of Hawaiian High-Intensity Rainfall

Fullerton, Charles M; Wilson, SK (Water Resources Research Center, University of Hawaii at Manoa, 1974-08)

A computer monitored network of rapid response Raymond-Wilson rainfall intensity gauges has been established at the Cloud Physics Observatory (CPO), on the windward coast of the island of Hawaii, to record the passage of ...
WRRCTR No. 83 Dynamic Programming Optimization: A Water Distribution System Design

Liang, Tung; Yang, Kwang-Ping; Wu, I-Pai (Water Resources Research Center, University of Hawaii at Manoa, 1974-09)

A computation technique based on the dynamic programming approach using the interactive Fortran language has been developed. The computerized design procedure can be used to obtain optimal design for single source water ...
WRRCTR No. 84 An economic analysis of the patterns and trends of water consumption within the service areas of the Honolulu Board of Water Supply.

Oh, Ho-Sung; Yamauchi, Hiroshi (Water Resources Research Center, University of Hawaii at Manoa, 1974-12)

The objectives of this study are to construct and analyze the patterns and trends of water demand in the service areas of the Honolulu Board of Water Supply, and to identify factors affecting water demand with the intent ...
WRRCTR No. 85 Methodological Approaches in Hawaiian Fog Research

McKnight, James H; Juvik, James O (Water Resources Research Center, University of Hawaii at Manoa, 1975-03)

Recent studies have demonstrated the important moisture contribution from fog precipitation in mountain areas on the island of Hawaii. The present study investigates research methodologies useful in the study of Hawaiian ...
WRRCTR No. 94 Water Recycling of Sewage Effluent by Irrigation: A Field Study on Oahu

Lau, L Stephen; Ekern, Paul C; Loh, Philip CS; Young, Reginald HF; Burbank, Jr; Nathan C; Dugan, Gordon L (Water Resources Research Center, University of Hawaii at Manoa, 1975-03)

The specific project objectives were to: (1) evaluate by field lysimeters and pilot plots and augment by laboratory studies the feasibility of utilizing water reclaimed from sewage for irrigation under Hawaiian conditions; ...
WRRCTR No. 9 Behavior of Selected Pesticides with Percolating Water in Oahu Soils

Eto, Marshall A; Burbank, Nathan C Jr; Klemmer, Howard W; Lau, L Stephen (Water Resources Research Center, University of Hawaii at Manoa, 1967-08)

This study investigated the ability of two Oahu soils, Wahiawa and Lahaina, to prevent chlorinated hydrocarbon pesticides; DDT and Lindane, in acetone solutions from percolating through the soils. The study was prompted ...