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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 of Phase I was to...
1977-08-01
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 digital computer model...
1977-11-01
OWRT Project No. A-068-HI, Grant Agreement No. 14-34-0001-7025
1978-05-01
In attempting to numerically solve the nonlinear moisture flow equation, the Galerkin process, which bears a great similarity to direct methods of the calculus of variations, and the Continuous System Modeling Program (CSMP) approach have been...
1975-06-01
A pilot tube farm has been installed at the Mililani Sewage Treatment Plant, O'ahu, Hawai'i, to study the necessary treatment of activated sludge effluent for drip irrigation. Four types of effluent will be processed: 100% effluent, 50% effluent...
1978-10-01
A detailed study has been made of the severe Oahu rainstorm of 19 April 1974 and its implications for the Hawaii flood forecast problem. Conventional meteorological analyses were performed, using standard surface observations, aircraft reports,...
1976-02-01
Information on the large-scale movement and origin of groundwater in southern Oahu was obtained by examining the natural isotopic and chemical composition of water samples. Six basal groundwater systems (Pearl Harbor, Moanalua, Kalihi, Beretania,...
1980-02-01
An ecological study of the benthic and fish communities at Mokapu, O'ahu, was completed in the summer of 1978 approximately 1 yr subsequent to the installation of a submarine outfall by the City and County of Honolulu. Data were obtained from five...
1979-02-01
Because of their insular subtropic and volcanic environment Hawaii and similar regions have special water problems and study needs not duplicated in the temperate continental region. Hawaii's water problems have also changed over the past two...
1976-02-01
This paper investigates the usefulness of two procedures for analyzing water use time series data. A simple procedure for translating price data into a form suitable for a standard regression estimation of the demand junction for water is first...
1975-06-01
In recent years in Hawai'i numerous shallow waste injection wells, constructed for the disposal of domestic sewage effluent, have failed to operate as designed or desired. In the course of this study a field reconnaissance of all the known waste...
1979-01-01
This study is an extension of the project, "Recycling of Sewage Effluent by Irrigation: A Field Study on Oahu," completed in July 1975. The major objective of this portion was to determine the dilution with Waiāhole Ditch water necessary for...
1980-03-01
A study was undertaken to determine the treatability of raw domestic wastes using waste water treatment lysimeters. A pilot treatment unit was constructed that included four waste water treatment lysimeters, each utilizing a different Hawaiian...
1980-04-01
The largest domestic sewage outfall in Hawai'i discharged 3 m^3/s (62 mgd) of raw sewage in 10 m of water approximately 1 000 m off Sand Island, O'ahu, from 1955 to 1977. Results of an ecological field study of epibenthic communities in proximity...
1979-07-01
The central, portion of the island of Maui, state of Hawaii, suffered from droughts during the summers of 1971 to 1975, which resulted in heavy crop losses. In order to learn more about the frequency of droughts, a study of the irrigation water...
1976-11-01
A water quality monitoring survey of three drainage subareas in the Kaneohe Bay watershed and selected sites in the bay was conducted between July and December 1975 to ascertain the dry-weather quality baseline. The three drainage subareas were...
1976-05-01
The secondary effluent of the Mililani STP is intended for use in the drip irrigation of sugarcane. The relative success of this waste water reuse application is affected by the concentration of suspended solids in the sewage effluent. Chemical...
1979-07-01
Oxic soils on Oahu were studied to develop and test simplified methods of determining the hydraulic conductivity of unsaturated soils, to test some simple infiltration models, and to assess the utility of soil survey mapped units in defining...
1982-08-01
The operation of the City and County of Honolulu, Kapaa Sanitary Landfill, located next to Kawainui marsh on Windward Oahu, Hawaii, raised concern over the possibility that landfill leachate could have adverse effects on the marsh. Thus, this...
1981-09-01
Californiagrass (paragrass) irrigated with effluent from secondarily treated domestic sewage showed excellent response as a means for disposal of large amounts of water, effective removal of nitrogen, and high production of excellent fodder. This...
1981-12-01
Injection of wastes into the Hawaiian subsurface environment presents unique problems because the waste effluents normally are injected into the salt or brackish water underlying the fresh Ghyben-Herzberg lens. Because the waste water commonly has...
1976-02-01
The injection of liquid wastes into a groundwater environment saturated with density-stratified fluid is simulated by a finite-difference numerical model. The fluid transport equation is simultaneously solved with the convective-dispersion...
1979-08-01
An ecological study of the benthic and fish populations at Mōkapu, O’ahu, Hawai’i was completed in the summer of 1979. This is the second post-installation study of the Mōkapu Outfall area since the commencement of effluent discharge in December...
1980-05-01
A pilot post treatment system was designed, installed, and operated at the Mililani Sewage Treatment Plant (STP), O'ahu, Hawaii, to study the necessary treatment of activated sludge effluent for drip irrigation according to prevailing Hawaiian...
1981-01-01
The most cornmon method of disinfecting waste water effluent is by chlorination which destroys pathogenic microorganisms in the waste water stream. A field study conducted at the Wahiawa Wastewater Treatment Plant on the island of Oahu, Hawaii was...
1981-03-01
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