Papers (page 30)

Groundwater recharge with Honouliuli wastewater irrigation: Ewa plain, Southern Oahu, Hawaii

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CP-1994-13 Groundwater recharge with Honouliuli wastewater irrigation: Ewa plain, Southern Oahu, Hawaii. Lau, L. Stephen Groundwater replenishment by irrigation with primary chlorinated effluent from the Honouliuli Wastewater Treatment Plant was tested in a three-year demonstration project for the Ewa limestone…

Hawaii: A tropical paradise with clean water environment

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CP-1994-12 Hawaii: A tropical paradise with clean water environment Lau, L. Stephen This paper discusses Hawaii in terms of a tropical paradise with a clean water environment. Water resources include groundwater, coastal waters, and other waters such as the few…

On the numerical solutions of one-dimensional flow in the unsaturated zone

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CP-1994-11 On the numerical solutions of one-dimensional flow in the unsaturated zone. El-Kadi, Aly I. Analysis and prediction of water flow patterns in the unsaturated zone are critical to many water resources and environmental problems. Examples of such problems include…

Ground-water tracing with injected helium

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CP-1994-10 Ground-water tracing with injected helium. Gupta, S.K., L. Stephen Lau, and Philip S. Moravcik Helium has several characteristics that make it attractive for use as a tracer in hydrological studies. Two types of experiments were conducted to investigate applicability…

Use of helium as a hydrological tracer

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CP-1994-09 Use of helium as a hydrological tracer Gupta, Sushil K., Philip S. Moravcik, and L. Stephen Lau Helium has several characteristics which make it attractive for use as a tracer in hydrological studies. These include its inert nature, relatively…

Stochastic analysis of the relationships between saturated hydraulic conductivity variance and solute dispersion in heterogeneous soils

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CP-1994-08 Stochastic analysis of the relationships between saturated hydraulic conductivity variance and solute dispersion in heterogeneous soils Azimi-Zonooz, Ali, and Clark C.K. Liu The effect of three-dimensional heterogeneity of saturated hydraulic conductivity on the vertical transport of solutes in soils…

Artificial recharge of ground water for all purposes?

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CP-1994-07 Artificial recharge of ground water for all purposes? Lau, L. Stephen Along a dry, hot coast on the island of Oahu, Hawaii, several needs-water demand for a new city, salinization control for a limestone aquifer, and management of wastewater…

Use of a geographic information system in site-specific ground-water modeling

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CP-1994-06 Use of a geographic information system in site-specific ground-water modeling El-Kadi, A.I., A.A. Oloufa, A.A. Eltahan, and H.U. Malik Groundwater modeling is hindered, in general, by the lack of adequate information about the groundwater system and hence the need…

Wellhead protection strategy for small aquifers: A study of Hawaii

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CP-1994-05 Wellhead protection strategy for small aquifers: A study of Hawaii. Lau, L. Stephen, Delwyn S. Oki, and John F. Mink. Small aquifers, especially those of high permeability and with well-defined boundaries, lend themselves to alternative approaches to wellhead and…

Modeling atoll groundwater systems.

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CP-1994-04 Modeling atoll groundwater systems. Peterson, Frank L., and Stephen B. Gingerich With the application of high-speed computer modeling, we have begun to understand the details of hydrodynamic processes within atoll groundwater systems. One model used to simulate variable-density groundwater…