Drought in California: When Does It Begin and When Does it End?
California recently endured a six-year period of drought. While the public, media and control agencies like simple definitions to classify water conditions, in a state as large and varied...
Development of a Regional Atmospheric-Hydrologic Model for the Study of Climate Change in California
An integrated model of atmospheric and hydrologic processes at regional scale over California has been developed in order to translate the large scale atmospheric conditions of critical...
Aquifer Transmissivity Computations Based on Data from Pump-and-Treat Facilities
Contamination from petroleum hydrocarbons spilled from USTs is a concern in urban areas that depend on shallow unconfined aquifers for their water supply. Studies on the transmissivity...
Aeration of Reservoirs and Releases TVA Porous Hose Line Diffuser
The Tennessee Valley Authority (TVA) has developed an efficient and economical aeration diffuser design that has been installed and operated successfully at five TVA hydropower projects,...
Picacho Reservoir Enhancement Study for Water Recharge, Reparian Enhancement, and Water-Based Recreation Purposes
This study was conducted for the Pinal County Department of Civil Works in Florence, Arizona. It investigated the feasibility of a major enhancement and expansion of Picacho Reservoir,...
The Integration of Receiving Water Impacts in the Evaluation Process of Alternative Designs for CSO Abatement in Providence, RI
The Providence, Rhode Island sewer system is undergoing a combined sewer overflow abatement program. One measure of the program's effectiveness is the reduction of water quality...
Whither Nuclear Waste Disposal?A 50th Anniversary View
The world recently observed the 50th anniversary of the first use of the atomic bomb. Thus major sources of nuclear wastes, from defense and power generation, have been around for slightly...
Reservoir Sediment Management Practices of the Los Angeles County Department of Public Works
The Los Angeles County Department of Public Works (Department), which includes the Los Angeles County Flood Control District, owns and operates 15 major flood control dams. Most of these...
Modeling Climate Change Impacts on Water Resources
As part of the Electric Power Research Institute's (EPRI) comprehensive evaluation of the economic effects of climate change in the United States, we have developed methods...
Optimization and Simulation in Design and Operation of Reservoirs
Due to stochastic nature of rivers, their volumetric yields are random variables. Spatial and temporal redistribution of Water makes the reservoir construction a must. Therefore, water...
Optimum Storage Reallocation and Gate Operation in Multipurpose Reservoirs
This research is intended to integrate long term operation rules and real time operation policy for conservation and flood control in a reservoir, the familiar yield model has been modified...
Multiobjective Optimization of Multireservoir System
In the present study, a detailed multiobjective nonlinear programming model is formulated and applied to a multireservoir system at upper reaches of Krishna river basin in Karnataka State,...
Direct Sizing of Small Stormwater Pump Stations
Pump stations are components of stormwater drainage systems that remove collected storm runoff from locations where drainage by gravity is not feasible. Usually pump stations will operate...
Managing Sediments in Reservoirs at FERC
Reservoir siltation has negative effects on water resource development projects. The impact of sedimentation on FERC's licensed hydropower developments is often quite significant....
Glacier-Generated Floods and Debris Flows
Sudden release of glacially impounded water causes catastrophic floods, known as outburst floods, and ocasionally spawn debris flows that pose significant hazards in mountainous areas....
ASR Case Study?City of Salem, Oregon
The City of Salem, Oregon is developing an Aquifer Storage and Recovery (ASR) system to provide a 20 mgd capacity, 440 mg volume, emergency storage and peak day supplementary supply. When...
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...
Recreational Impoundments Retrofit of Existing and Design of New Facilities
Water has been a critical component of most human endeavors, and its value as a recreational amenity is well-known. An increasing number of recreational impoundments are being considered...
Construction of Performance Contours on the Storage-Yield Plane of a Within-Year Reservoir System
The reservoir storage-reliability-yield (S-R-Y) relationships developed in the past have considered only the probability of failure to meet the target requirements, but not the likely...
Implementing a Successful Conjunctive Use Program
Over the past decade, water planners have come to the agreement that conjunctive use is a good strategy to help meet present and ftiture water needs. Storing water underground has many...
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