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A statewide survey was conducted to detennine the nature and extent of wastewater reuse by irrigation in 1989. An average of 13.985 mgd (million gallons/day) of wastewater is applied to 2115+ acres. Acreages are difficult to ascertain because with...
1989-05-01
A self-contained pilot unit (including primary and secondary sedimentation) complete with electric motor driven plastic discs (surface area approximately 500 ft^2), located at the U.S. Navy's 7.5 mgd Fort Kamehameha Wastewater Treatment Plant...
1986-09-01
The aerated Mililani well water, which removed about 40% of TCP, and spiked deionized water, intended to reduce the level of natural background organics, both appeared to increase the volume of water passing through the minicolumns before...
1992-10-01
This study investigated the feasibility of capturing and storing fresh stream water flowing into West Loch, an estuarine, enclosed inland embayment of Pearl Harbor, Oahu, Hawaii, that is accessible to the sea through a narrow channel. The concept...
1992-09-01
A desalting test using low pressure, reverse osmosis (RO) FT-30 and FT-50 membranes was conducted on Pump 10 well water at Oahu Sugar Company near Campbell Industrial Park on O'ahu. The brackish test water from the Waianae basalt aquifer had a...
1984-12-01
Chronological list of Special and Project Reports published by WRRC from January 1983 through December 1993.
1993-12-01
This report is the result of a one-year study of pollution of estuaries in the State of Hawaii undertaken by the University of Hawaii for the Federal Water Pollution Control Administration. The study included two major projects, a statewide...
1970-03-01
An analysis was made of the tritium content of samples from various sources of surface and subsurface waters of the island of Oahu. Twenty rainwater samples collected from various rain gages located on the Koolau Range over a period of four months...
1969-11-01
A study of the surface water quality in the southeastern portion of Kaneohe Bay was undertaken between February and mid-April, 1968. The aims of this project were to determine: (1) the effect of surface runoff on water quality in the Bay, (2) the...
1970-01-01
A laboratory study was made to determine the ability of three Oahu soils, Wahiawa, Lahaina, (both Low Humic Latosols), and Tantalus cinder to prevent possible contamination of the basal-water lens by the passage of virus. The study was performed...
1970-01-01
Water use by sprinkler irrigated sugarcane under flat-bed culture was measured in four 100 ft 2 by 5 ft deep hydraulically weighed lysimeters at the Kunia substation of the Hawaiian Sugar Planters' Association. Nine-week-old one-eye cane...
1970-07-01
The waters of the streams in the South Kohala District on the island of Hawaii have long been noted for their extreme high color and at times a distinct peaty taste. Early attempts to treat this water have led to the conclusion that the color...
1970-03-01
This report presents the results of a model study on the propagation of periodic fluctuations in the piezometric head through a saturated porous media. Three different models were employed: a hydraulic model, a mathematical model, and an...
1970-05-01
A critical appraisal of the extant literature was made to evaluate the various studies and concepts derived from these studies pertinent to groundwater recharge with respect to treatment, transport, and storage of recharge water. The need for more...
1967-04-01
This study developed instrumentation and techniques to be used for seismic exploration of groundwater in Hawaii. A three-stage field test of instruments and methods was conducted to determine their capability of recording and reproducing seismic...
1967-04-01
In 1966, the Water Resources Research Center initiated a comprehensive study of electric well-logging and other geophysical well-logging techniques in Hawaii. The primary objectives of this study were to determine what results could be obtained by...
1969-11-01
All known tritium measurements made of Hawaii rainwater, ocean water, surface water, and ground water are summarized. Ocean water yielded 10 to 20 T.U. in 1963-65. Tritium in rainwater rose from a low 6 T.U. in 1961 to a 1963 summer peak of 373...
1968-11-01
In order to locate the relatively optimum sites for drilling exploratory holes for fresh water, an electrical resistivity survey was conducted along the new Mahukona-Kawaihae Road on the west flank of the Kohala Mountain. Two resistivity soundings...
1968-11-01
Compilation of the optical properties of electromagnetic waves incident on pure (chemically pure) or sea water shows an abrupt divergence of behavior for the two water types at about the 3-centimeter wavelength. From this point on to all longer...
1968-12-01
An infrared scanner covering the 200 to 540-nanometer wavelength region has been flown over the coastline of the Puna and Kau Districts on the island of Hawaii. The images were monitored in real-time and recorded on film. Only a 5° x 5° lens...
1968-12-01
To determine the response of pineapple mill waste to anaerobic digestion, a simulated mill waste with a COD value equal to actual mill waste was made from commercial pineapple juice for this study. Ammonium hydroxide was used as a pH control and a...
1969-01-01
Aeromagnetic, electrical resistivity, and gravity surveys were conducted in the area between Pahala and Punaluu, Hawaii to delineate barriers to ground-water movement. The geophysical data are interpreted and compared to determine the sectors of...
1970-02-01
The laboratory study of the infiltration and percolation of sulfides and sewage carbonaceous matter was conducted in two phases: Phase I utilized simulated cesspool lysimeters and Phase II considered the generation of sulfides and the infiltration...
1967-06-01
Hawaiian small watersheds are unique in watershed hydrology because of the high infiltration rate, small size, and mountainous topography. The flood hydrograph which has a short time to peak and small recession constant can be expressed as a steep...
1969-03-01
U.S. Department of the Interior Grant/Contract No. 14-01-001-1495; B-010-HI
1969-01-01
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