Numerical Modeling of Water Flow over Porous Media
The momentum transport phenomena at the interface of porous media and fluid are numerically investigated. The single domain approach is used with matching boundary conditions; i.e., the...

Volunteer Organizations Use of Appropriate Technology in Developing Countries
The water and sanitation needs facing developing countries are formidable. This paper discusses the experience of a volunteer organization, the Water and Sanitation Consultancy Group,...

Management of Stream-Aquifer Systems in the 21st Century
Many water agencies, especially those in the arid and semi-arid southwest of United States rely on stream-aquifer systems for a significant proportion of their water supplies. Wastewater...

San Diego County Water Authority's Emergency Storage Project: A Major Planning Achievement
The San Diego County Water Authority (Authority) has been actively working to maximize the security of the future water needs of the community it serves. The Emergency Storage Project...

The Standley Lake Protection Project
Until recently, there has been no physical separation between potentially contaminated runoff from the former Rocky Flats Nuclear Weapons Plant and Standley Lake, the nearby water supply...

Hydrodynamic Changes Associated with Navigation Traffic on the Upper Mississippi River System
Research has been conducted at the Illinois State Water Survey for the last five to seven years to collect field data from the Illinois and Mississippi Rivers to determine the extent and...

Better Management in the Water Supply Sector Through Indigenous Institutions
The following discussion briefly explores how improved institutional performance in Africa's water sector can be promoted through reconciliation of indigenous and formal institutions....

Wastewater Reuse: An Alternative for Potable Water
Adverse economic conditions throughout the world have resulted in a shift of priorities causing water supply and sanitation schemes to relegate down the list of adequately funded projects....

Sacramento Valley Conjunctive Use?Future Water Supply for the State Water Project?
In 1992, the California Department of Water Resources began an investigation of the potential to develop additional water supply for the State Water Project through conjunctive use programs...

Analysis of Long-term Supply-demand Planning of Water Resources in Taiwan
The purpose of the present study is to analyze the long-term supply-demand planning of water resources in Taiwan under future conditions. Since last decade, the Water Resources Planning...

Risk Analysis of Joint Reservoir Operation in Central Taiwan
Risk analysis for shortage of water on the joint operation of Li-Yu-Tan Reservoir and Shih-Kang Dam (Reservoir) in central Taiwan is presented in this paper. Deter ministic simulation,...

Transboundary Diversions, Water Law and Property Rights
Meeting water supply needs associated with population growth will require the increasing use of transboundary diversions of water. To regulate and control these diversions, both eastern...

Development and Implementation of a Capital Improvement Program for a Small Water Utility
The City of Las Cruces water utilities is being exposed to accelerated population growth and is faced with inadequate capital infrastructure to meet increasing demands. The City's...

Mixing Processes in the Dangava River Estuary
The aim of this report is to present main changes in the hydrology of the Daugava River estuary after its natural water flow became regulated and to present a simple physical model of...

Optimization Modeling of Complex Surface Water Collection Systems
The New York City (NYC) water supply system is currently being modeled using Linear Programming (LP) optimization techniques. A series of simulations were performed to investigate the...

Model for Water Quality in Periphery of Distribution Systems
A model is presented for water travel time and chlorine concentration in periphery dead ends of the water distribution system. The model is developed under the premise that residential...

The Management Improvement Program: An Irrigation District's Perspective of the Demonstration Program
In November 1990, the Maricopa-Stanfield Irrigation and Drainage District agreed to participate in the first application of the Management Improvement Program (MIP) for irrigated agriculture....

Eastern San Joaquin County Groundwater Resource Planning Model Development and Calibration
An Integrated Groundwater Surface Water Model (IGSM) has been developed for the Eastern San Joaquin County in the Central Valley of California to evaluate the future water resources management...

Simulating DBP Precursor Transport in Sacramento Delta
Fate and movement of disinfection by-product organic precursors in California's Sacramento-San Joaquin Delta was simulated for a 365-thy period with a hydrodynamics and transport...

Interruptible Option Contracts
Interruptible option contracts have been proposed and studied in numerous parts of the Western United States as an alternative supply option for water systems in an economically higher...

 

 

 

 

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