Cost of Rehabilitation of Water Distribution Systems
The Chester Water Authority was established in 1868 and supplies water to residential and industrial customers in three counties in Southeastern Pennsylvania, and in addition, wholesales...
Water Main Rehabilitation Using Silicote Lining
In an attempt to find a cost effective rehabilitation alternative for over 320 miles of unlined distribution water main, the Louisville Water Company has evaluated a new rehabilitation...
Use of Contaminant Mobility and Transport Parameters to Determine Water Testing Protocol
By 1994, EPA plans to regulate 83 contaminants in public water supplies. For rural communities and individuals who are not classified as public systems, the cost to monitor all 83 contaminants...
Statewide NPS Management Strategies
Statewide nonpoint source (NPS) management strategies are necessary because there are several different levels of authority involved, and the priority of action needs to be related to...
Expert System for Operating A Treated Water Supply System
This paper presents a systematic approach to the development of an expert system to operate a treated water supply system for meeting daily water requirements. A treated water supply system...
A TVD MacCormack Method for Open Water Hydraulics and Transport
Computing in Civil Engineering and Geographic Information Systems Symposium
This proceedings consists of the papers presented at the Eighth National Conference on Computing in Civil Engineering and Geographic Information Symposium, held in conjunction with A/E/C...
Engineering, Construction, and Operations in Space III
This proceedings,
Reuse Rules
Cities that discharge sewage effluent to surface water are under increasing pressure to reduce concentrations of heavy metals, ammonium and nitrate, and substances such as toxic organic...
Overview of Permeable Bases
Drainable pavement systems consist of: permeable base, separator lyer, and edgegrain system. This paper focuses on permable bases. A permeable base must provide both permeability and stability....
Consistency and Fairness in Geotextile Specifications
By clearly defining required material properties in terms of 'Minimum Average Roll Values' for routine quality control tests and 'Average Test Values in the Weakest Principal Direction'...
Implementation of Material Requirements in Specifications
This paper focuses on where to find information on materials, their compatibility, minimum standards and specifying of materials and their use. The paper also presents case histories on...
Polyolefin Plastic Water Service Line Performance
Polyolefin (PO) plastic piping made from polyethylene (PE) and polybutylene (PB) materials have been used in diameters of about 1 in. for water service lines for buildings. Both PE and...
Probabilistic Mechanics and Structural and Geotechnical Reliability
This proceedings consists of summary papers for the thirty-six technical sessions of the 6th ASCE Specialty Conference on Probabilistic Mechanics, and Structural and Geotechnical Reliability....
Transportation Planning and Air Quality
This proceedings,
Taming Environmental Data
The main problem with environmental management is the vast quantity of data generated for and by analysis. A computer system designed to solve this problem moves data from the database...
Dual-System Cleanup
Engineers designing a ground water treatment system for a manufacturing plant in northern California, found that two systems are better�and cheaper�than one. Most of the ground water at...
Seattle Plays It Safe
To ensure the reliability of its aging water system in a major earthquake, the Seattle Water Department commissioned a comprehensive assessment of the system's seismic reliability...
Earthquake Hazard Investigative Procedures for Central United States Waterworks
The vulnerability assessment of Central United States waterworks for earthquake hazards is a developing engineering practice for civil engineers in Arkansas, Missouri and states close...
Seismic Mitigation of the Memphis Water System
Memphis, Tennessee is located in zone 2 of the 1988 Standard Building Code, close to the New Madrid Seismic Zone. The probability of having a seismic event of significant magnitude is...
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