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Water Assurance Districts: A New Concept in Local Government
Society has long utilized local governmental units to implement numerous water management functions. This paper discusses a new and relatively unique local organizational structure now...

Comparison of Two Methods for Modeling Urban Runoff
The techniques currently available for modeling urban runoff can generally be grouped into discrete and lumped system approaches. The storm water management model (SWMM) provides procedures...

Small Diameter Gravity and Pressure Sewers
In communities with low population density or physical features that make conventional gravity sewers inordinately expensive, alternative sewer technologies can be significantly lower...

Lessons to be Learned from Lafayette Tennessee's Small Diameter Sewer System
Lafayette, Tennessee's septic tank effluent, small diameter gravity sewer (SDGS) system is believed to have been the first such project to be funded by the United States Environmental...

Computer Based Master Plans Manage Water Resources
Scottsdale is pursuing water and wastewater master planning with the goal of implementing a proactive water resources management policy. To prepare dynamic master plans with the above...

Vacuum Sewers: Fundamentals and Design Methods
Vacuum sewer (VS) systems have important advantages over conventional gravity sanitary sewers or septic tank-soil absorption systems when one or more of the following conditions hold:...

Alternating Direction Oxidation Ditches?A Cost Saving Technology from Denmark
A soon to be released EPA report claims that in Denmark, small alternating direction oxidation ditches (ADOD) save as much as 70% of the cost for conventional oxidation ditches. The alternating...

CLNET?A Computer Model for Tracking Movement, Decay, and Concentrations Throughout Water Distribution Systems
This paper describes a computer program package for modeling the spread and subsequent decay of chlorine for modeling as water travels throughout a water distribution system. This total...

Take Back the Land
Municipal sludge applied to land devastated by strip mining has brought thousands of acres of Ohio, Illinois and Pennsylvania land back to life. After two years of testing at a Palmerton,...

Pinpointing Nonpoint Pollution
The Tennessee Valley Authority is using aerial photography to locate nonpoint sources of water pollution. These cause most of the water quality problems in the region. Failing septic tanks...

Biological Treatment of Hazardous Wastes
Biological treatment�using nature's bacteria and fungi�sometimes costs as little as 10-20% as incineration. Wastes in any form�solid, aqueous and gaseous�can be treated biologically....

Megaproject Management Tool
Program management oversight is an administration innovation in the water and wastewater treatment field. The method is increasingly being used when a public entity takes on a project...

Colorado River Municipal Water District Weather Modification Program 1971-1986
The Colorado River Municipal Water District (CRMWD) has sponsored a rain enhancement program on summertime convective clouds in West Texas since 1971. Silver iodide is used for cloud base...

Expert Systems Water Management: A Demonstration
Expertise is one of the major assets of the Bureau of Reclamation. However, with the current downward trend in government funding, the Bureau is facing an 'expertise crisis'....

Financing of Urban Water Resources
This paper begins by examining recent trends in financing urban water resource systems and sets them in the broader contexts of local government finance and concerns about financing the...

Demand Management and Urban Water Supply Planning
During the past twenty years, the social sciences research has been translated into new methods and techniques of analysis which enable planners to evaluate the role of demand management...

Application of Social Science Research Products in Urban Water Resources Planning
Phoenix was spurred to action in 1981 because of the projected depletion of one of its surface water supplies by the summer of 1982. In addressing the projected near-term crisis, it quickly...

The Development of Metropolitan Water Markets: Seattle, Washington 1887-1987
This paper applies the case-study approach to examine the development of metropolitan water markets and its implications for central city and suburban water districts. The greater Seattle,...

Design of an Alluvial Channel Relocation in an Urban Environment
The relocation of a three-mile (4.8 km) reach of the Salt River channel in metropolitan Phoenix, Arizona is reviewed. The methods used for hydraulic analysis of this dynamic alluvial channel...

Estimation of Urban Stormwater Quality
Two data-based methods for estimating urban stormwater quality have recently been made available - a planning level method developed by the U.S. Environmental Protection Agency (EPA),...

 

 

 

 

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