Browsing WRRC Technical Reports by Title

Now showing items 1-20 of 163

WRRCTR No.100 Wet-Weather Water Quality Monitoring, Kaneohe Bay, Oahu, Hawaii

Lau, L Stephen; Young, Reginald HF; Konno, Stanley K; Oldnall, Robert J; Lee, Helen H (Water Resources Research Center, University of Hawaii at Manoa, 1976-08)

A water quality monitoring survey during the wet-weather seasonal period (January to June 1976) was conducted in the Kaneohe Bay area as part of the U.S. Army, Corps of Engineers Kaneohe Bay Urban Water Resources Study. ...
WRRCTR No.101 Inventory of Benthic Organisms and Plankton at Mōkapu, Oahu

Russo, Anthony R; Dollar, Steven J; Kay, E Alison (Water Resources Research Center, University of Hawaii at Manoa, 1977-01)

An inventory of benthic and planktonic marine communities at Mōkapu Point, Oahu, compiled in July to August 1975, prior to the completion of an outfall and discharge of secondary sewage effluent, has been prepared for the ...
WRRCTR No.102 Nitrogen Removal from Secondary Effluent by a Laboratory Soil Column

Dugan, Gordon L; Ekern, Paul C; Tsutsui, Roy T (Water Resources Research Center, University of Hawaii at Manoa, 1976-08)

The objective of the project was the investigation of the percolate rate and the disposition of nitrogen from a laboratory soil column when chlorinated secondary sewage effluent was applied under both continuous and ...
WRRCTR No.103 The Eutrophic Potential of Wahiawa Reservoir Sediments

Lum, Leighton WK; Young, Reginald HF (Water Resources Research Center, University of Hawaii at Manoa, 1976-08)

In recent times the increased influx of nutrients and organic matter as a result of man's activities into some waterways has resulted in the accelerated eutrophication of these waters. This has been found to be the case ...
WRRCTR No.104 Survey of Benthic Coral Reef Ecosystems, Fish Populations, and Micromollusks in the Vicinity of the Wai’anae Sewage Ocean Outfall, O’ahu, Hawai’i - Summer 1975

Reed, S Arthur; Kay, E Alison; Russo, Anthony R (Water Resources Research Center, University of Hawaii at Manoa, 1977-05)

A marine survey was conducted in the vicinity of the present and proposed Wai'anae sewage ocean outfall site on the southwest coast of 0'ahu, Hawai'i. The survey at depths of 6 to 30 m (20-100 ft) characterized quantitatively ...
WRRCTR No.105 Hydrologic and Ecologic Inventories of the Coastal Waters of West Hawaii

Kay, E Alison; Lau, L Stephen; Stroup, Edward D; Dollar, Stephen J; Fellows, David P; Young, Reginald HF (Water Resources Research Center, University of Hawaii at Manoa, 1977-04)

The goal of this project was to provide information to the County of Hawaii and to the state for the intelligent management of the marine and coastal resources of West Hawaii, particularly the South Kohala and North Kona ...
WRRCTR No.106 Water Quality of Normal and Storm-Induced Surface Water Runoff: Kāne‵ohe Bay Watershed Oahu, Hawaii

Dugan, Gordon L (Water Resources Research Center, University of Hawaii at Manoa, 1977-02)

The Hawaii Environmental Simulation Laboratory (HESL), since its establishment in the spring of 1971, has attempted to simulate some of the consequences of alternative land-use economic decisions which include, as one of ...
WRRCTR No.107 A Laboratory Study of Waste Injection Into a Ghyben-Herzberg Groundwater System Under Dynamic Conditions

Heutmaker, Duane L; Peterson, Frank L; Wheatcraft, Stephen W (Water Resources Research Center, University of Hawaii at Manoa, 1977-03)

Injection of wastes into a Ghyben-Herzberg groundwater system presents unique problems because the waste effluents are normally injected into the salt or brackish water underlying the fresh Ghyben-Herzberg lens. Because ...
WRRCTR No.108 Well Injection into a Two-Phase Flow Field: A Hele-Shaw Model Investigation

Williams, John A (Water Resources Research Center, University of Hawaii at Manoa, 1977-05)

A Hele-Shaw model was employed in conducting preliminary studies of waste water injection into a fresh-saline water system. Three different field conditions were simulated: injection under static conditions, injection into ...
WRRCTR No.109 Drip Irrigation of Sugarcane Measured by Hydraulic Lysimeters, Kunia, Oahu

Ekern, Paul C (Water Resources Research Center, University of Hawaii at Manoa, 1977-06)

The daily water budget of drip-irrigated sugarcane at Kunia, Oahu, was measured in large hydraulic load cell lysimeters. The 10-mo plant crop period was extrapolated to 109 am (43 in.}/12-mo water use. Extrapolation from ...
WRRCTR No.10 Feasibility of Radio Sounding to the Groundwater Table in Hawaii

Jiracek, George R (Water Resources Research Center, University of Hawaii at Manoa, 1967-08)

The reported high values of resistivity in the near surface zones in semi-arid regions on the island of Hawaii motivated research into the feasibility of using radio waves to sound the depth to the ground water table. Field ...
WRRCTR No.110 Groundwater Recharge and Coastal Discharge for the Northwest Coast of the Island of Hawai'i: A Computerized Water Budget Approach

Kanehiro, Brian Y; Peterson, Frank L (Water Resources Research Center, University of Hawaii at Manoa, 1977-07)

The basic objectives of this study were to determine the average annual recharge to the groundwater body and the fresh groundwater discharge at the coastline, as well as the aquifer characteristics for an arid area located ...
WRRCTR No.111 Recycling of Sewage Effluent by Sugarcane Irrigation: A Dilution Study, October 1976 to June 1977, Phase II-A

Lau, L Stephen; Ekern, Paul C; Loh, Philip CS; Young, Reginald HF; Dugan, Gordon L (Water Resources Research Center, University of Hawaii at Manoa, 1977-08)

Phase II-A is a project that is an extension of a recently completed 4-yr project (July 1975) entitled "Recycling of Sewage Effluent by Irrigation: A Field Study on Oahu," hereinafter referred to as Phase I. The main purpose ...
WRRCTR No.112 Diurnal Variation in Rainfall and Cloudiness

Schroeder, Thomas A; Kilonsky, Bernard J; Meisner, Bernard N (Water Resources Research Center, University of Hawaii at Manoa, 1977-07)

Maps of diurnal rainfall patterns based on hourly rainfall records are presented for the six major Hawaiian islands. The resulting rainfall distributions demonstrate the complexity of the interaction between trade winds ...
WRRCTR No.113 Handbook-Index of Hawai'i Groundwater and Resources Data Extracted from Reports of the Water Resources Research Center, University of Hawaii

Mink, John F (Water Resources Research Center, University of Hawaii at Manoa, 1977-09)

The research of the Water Resources Research Center covers all aspects of water resources investigations, in the course of which considerable new significant data are generated and older data reevaluated. These data are ...
WRRCTR No.114 Digital Simulation and Evaluation of Storm Drainage Systems: St. Louis Heights Watershed Model

Fok, Yu-Si; Murabayashi, Edwin T; Phamwon, Sanguan (Water Resources Research Center, University of Hawaii at Manoa, 1977-11)

The adequate design of a storm drainage system depends upon the proper estimation of various peak discharges (produced from a given storm) along the drainage network. The objective of this study is the development of a ...
WRRCTR No. 115 Refractory Organic Compounds in Treated Effluent and Their Removal by Soil, Mililani, O'ahu, Hawai'i

Fischer, Charles; Green, Richard E; Burbank, Nathan C Jr (Water Resources Research Center, University of Hawaii at Manoa, 1977-12)

Increased water consumption on O'ahu has encouraged the use of treated sewage effluent for irrigation. This study seeks to identify organic compounds in treated effluent and to determine if such compounds are adosrbed by ...
WRRCTR No.116 Rotating Disc Sewage Treatment System for Suburban Developments and High-Density Resorts of Hawai'i

Griffith, Garry T; Young, Reginald HF; Chun, Michael J (Water Resources Research Center, University of Hawaii at Manoa, 1978-05)

A large-scale pilot rotating disc treatment system was tested at the City and County of Honolulu Pacific Palisades Municipal Wastewater Treatment Facility, to evaluate its treatment effectiveness and capabilities, and to ...
WRRCTR No.117 An Automatic Hydraulic Structure to Open Sand Plugs at Stream Mouths on O’ahu.

Nishimura, Jon K; Lau, L Stephen (Water Resources Research Center, University of Hawaii at Manoa, 1978-06)

Numerous stream mouths on O'ahu are affected by sand berm blockages which prevent free flow of storm waters to the ocean and cause the stream water level to rise rapidly; often overflowing of the stream banks and flooding ...
WRRCTR No.118 A Climatology of Mountain Fog on Mauna Loa, Hawai’i Island

Juvik, James O; Ekern, Paul C (Water Resources Research Center, University of Hawaii at Manoa, 1978-06)

This study of the mountain cloud and fog regimes on the windward and leeward slopes of Mauna Loa, Hawai'i Island (1) develops a standardized louvered-screen, fog-catchment gage; (2) develops an indirect approximation method ...