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Ground-Water Flow Model of Soda-Ash Waste Beds
A recent application by a steel manufacturing plant to obtain a permit for an industrial landfill located on top of abandoned soda-ash waste beds in the City of Syracuse, New York, resulted...

Groundwater Models in Choosing Water Treatment Methods
This paper presents an example of the use of groundwater models to identify the source of contamination and then design a treatment scheme. Included is a discussion of several different...

The National Water Well Association's Ground Water Software Centre
The National Water Well Association (NWWA) offers a new service to the members of the ground water industry. NWWA's Ground Water Software Centre markets computer programs...

Hydrograph Decomposition: Using a Technical Database
Trouble shooting for infiltration/inflow (I/I) problems in a sewer system is made much easier with the aid of a computerized hydrograph decomposition methodology. A methodology has been...

Conjunctive Use/Sustained Groundwater Yield Design
Assuring the sustained availability of groundwater from all parts of an aquifer system is analagous to assuring that the potentiometric surface does not change over the long term. Such...

Regional Target Level Modification for Groundwater Quality
A procedure for modifying an optimal regional potentiometric surface designed solely on the basis of quantitative considerations, is described. These modifications are based on quality...

Predicting Areas of Groundwater Contamination
Logistic regression has been used to estimate the probability that a metropolitan area will contain one or more water supply sites with contamination by one or more of six frequently occurring...

Prototype Laser Fluorescence/Fiber Optics Groundwater Contaminant Detector
Laboratory testing of a prototype field-portable instrument for in-situ laser fluorescence analysis of groundwater contaminants using fiber optics is discussed. Gasoline, gasoline components,...

Nitrate Analysis Utilizing Groundwater Modeling
Groundwater is the sole source of potable water for the Town of Barnstable, Massachusetts. It is, therefore, of paramount importance to maintain the overall quality within acceptable drinking...

Ground Water Quality Assessment Using Unsaturated and Saturated Zone Models
The modeling work described here provides an assessment of the migration and fate of the pesticide aldicarb in typical Florida citrus applications with emphasis on the potential for leaching...

A Case Study of Ground Water Quality Protection in California
Incidents of ground water contamination from improper disposal of industrial wastewater have been widespread throughout California. In late 1984 the State Water Resources Control Board...

Potential for Nitrate Removal from Groundwater Supplies Using Biological Deintrification
Nitrate concentrations in groundwater supplies have been increasing over the years throughout many areas in the U. S. to the point of posing potential health dangers to a multitude of...

Microcomputer Methods for Toxicants in Ground Waters and Rivers
This paper describes a program written for the IBM personal computers to assess the fate of toxicants in ground waters and in rivers. The algorithms in the program were selected from a...

Underground Oil Lens Management at John F. Kennedy International Airport
Observation wells plumbed using a water surface detector and standard topographic interpolation techniques were used to establish the hydraulic gradient of the groundwater and the presence...

Design and Construction of TCE/PCE Removal Facilities
This paper presents a review of the design and construction of a facility in Arcadia, California, to remove trichloroethylene (TCE) and tetrachlorethylene (PCE) from ground water. (Edited...

Transport of Halogenated Organics in Saturated Groundwater Flow: Theoretical and Experimental Results
This paper presents the development of a mathematical model to describe transport of organic chemicals in saturated soil columns and compares model predictions to experimental results....

Solubility of Aromat6ic Solutes and Sorption onto Soil in Polar Solvent/Water Systems
An investigation was performed to evaluate the solubility and sorption of aromatic solutes onto soil from an aqueous phase containing polar solvent. This work relates to the evaluation...

Dewatering--Avoiding Its Unwanted Side Effects
The undesirable side effects that sometimes occur when dewatering for construction or mining are presented, including: ground settlement due to dewatering; deterioration of timber piling;...

EPA Groundwater Protection Strategy Overview
Recently the Environmental Protection Agency (EPA) issued its Groundwater Protection Strategy with the objective to strengthen states' and EPA's programs dealing...

Interbasin Transfers of Water in Ogallala States
Water rights to enable a major interbasin transfer can be obtained either through an initial appropriation or by acquiring an existing water right. All unappropriated surface water in...

 

 

 

 

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