Protection of a 700-GPM Municipal Well Field with a 10-GPM Barrier Well: An Update After 8 Years of Remediation
In December 1978, a municipal well field developed by the Town of Acton, Massachusetts was shut down because of contamination by 1,1-dichloroethylene. Chemicals and process wash water...

Pumping or Slurry Walls?Which Works Best for Groundwater Containment?
Results of a numerical optimization model capable of designing containment systems for sites with three-dimensional groundwater flow indicate that site hydrogeology and economic considerations...

Adjustment of Groundwater Quality Models
Groundwater quality models have been used lately in solving cases dealing with groundwater flow and pollutant transport problems. Finite element method is used in such problems and is...

Ecological Concerns of Regional vs. On-site Facilities
New federal stormwater regulations are ushering in a second generation of stormwater BMP's. Traditionally designed to achieve quantity control, BMP's are now being evaluated for their...

Comprehensive Stormwater Management Planning
Prince William County, Virginia and the Environmental Protection Agency (EPA), Region III, are implementing an interagency, interdisciplinary stormwater management demonstration project....

A Review of Surface-Groundwater Interaction Models
Surface-water and groundwater systems are in continuous dynamic interaction. Processes such as infiltration from surface waters and precipitation, the discharge of groundwater to surface...

Characterizing Storm Water Discharges for NPDES Management
A continuous simulation runoff yield analysis model is described which can be used to estimate runoff from any type of land use within a watershed. Such a model can be used to derive statistical...

Verification of the Princeton Transport Code (PTC)
The Princeton Transport Code (PTC) is a quasi-three dimensional groundwater flow and transport code. PTC is implemented using a splitting algorithm that allows the three-dimensional solution...

Model Structure Validation in Groundwater Modeling
Structure equivalence models (SEM), a new concept in groundwater modeling, have been developed to assist in groundwater planning and management. Using SEM, the engineer is able to satisfy...

Field-Scale Research at the TVA Columbus Groundwater Research Test Site
TVA has been conducting large-scale field experiments at their Columbus Groundwater Research test site at Columbus Air Force Base since 1983. This work has been performed in cooperation...

Global-Scale Assessment of Annual Usable Fresh Water
The quantity of fresh water on earth, although very large, is a limited quantity. A major portion of this water is the polar water that is practically unavailable for human uses. The annually...

Sophisticated Computer Tools for Water Management
Sophisticated new computer tools were applied to develop a water management plan for Nassau County, Long Island. A regional groundwater flow model and two 3-dimensional saltwater intrusion...

Development of an Expert System for Urban Runoff
The U.S. EPA's Storm Water Management Model, SWMM, (Version 4.20, 1988) is a comprehensive water quality and quantity mathematical model for simulation of urban runoff in storm and combined...

Application of a Density-Dependent Flow and Transport Model to a Coastal Aquifer System
A three-dimensional density-dependent groundwater flow and solute transport model for a coastal region in east-central Florida is presented. The model covers an area of approximately 2900...

Stormwater Management Practices in New Jersey?Suggestions for Improvements
The State of New Jersey, due to large population density and intensive development, has become a frontier in regulating the stormwater runoff. This paper presents an overview of current...

Flow Augmentation in the Fenholloway River Basin
Methods to enhance water quality were examined in a north Florida river basin containing industrial wastewater effluent from a paper pulp mill. Streamflow augmentation was determined to...

The Covington Master Drainage Plan
Located in the southeastern portion of King County, Washington, the 1,240-acre Covington area had been identified in 1985 as an 'urban activity center,' a place designated for regional...

Urban and Agricultural Competition for Water, and Water Reuse
Competition for water can be resolved by construction of more facilities for storing water (dams, groundwater recharge) in wet years for use in dry years, by weather modification, watershed...

Wastewater Treatment and Disposal System for a Vegetable Processing Facility
The authors describe the implementation of a wastewater management system designed to dispose of up to 2.1 million gallons of vegetable processing wastewater generated per day at Bellingham...

A GIS Based, Pilot Scale, Wellhead Protection Project for Southern New Mexico
The 1986 amendments to the Safe Drinking Water Act (SDWA) mandated that each state develop a wellhead protection program. Wellhead protection (WHP) means the protection of groundwater...

 

 

 

 

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