Progress and Future Direction to Improve Arizona's Reclaimed Wastewater Reuse Program
(No paper) The Arizona Department of Environmental Quality (ADEQ) is undertaking a major revision of its reclaimed wastewater reuse program in response to recommendations made by a citizens...
Reclaimed Wastewater Reuse in Arizona: Status and Vision for the 21st Century
(No paper) The Arizona Department of Environmental Quality (ADEQ) regulates the reuse of reclaimed wastewater through the issuance of individual reuse permits to treatment plants and/or...
Water Quality in the Sierra Vista Subbasin, Southeastern Arizona: A Baseline for the Future
As part of the U.S. Geological Survey's (USGS) National Water-Quality Assessment program, water-quality studies were completed in the Sierra Vista subbasin in southeastern Arizona during...
Reversal of Historic Water Level Decline Has Surprising Consequences
(No paper) This paper discusses the causes of the water level rise and options available to the building owner to deal with both the rising water table and VOC contamination....
Ground-Water Quality in Basins with Minimal Urban Development, Arizona
Ground-water quality data (191796) from 2,013 wells in 16 alluvial basins that have minimal urban development, were used to determine the effect of nonurban factors on ground-water quality...
Deep Diagnosis (available only in Geoenvironmental Special Issue)
Contaminated sediments in the world's waterways present a variety of problems, both economic and environmental. The two basic problems are waterways which need maintenance...
A Statistical Approach to Modeling Groundwater Hydrology in a Constructed Wetland on the Atlantic Coastal Plain, Delaware
The design of wetlands based on groundwater as the principal source of hydrology pose uncertainties in areas where erratic seasonal groundwater fluctuations exist. Under these conditions,...
Nothing Wasted
Anoxic gas flotation (AGF), a patented system for anaerobic digestion of organic slurry waste, can recover as much as 85% of the phosphorus and 23% of the nitrogen in slurry waste, while...
Water Resources and the Urban Environment-98
This proceedings,
Preparing for Pier A
Earthquakes, oil wells, contamination and unstable soil were among the challenges engineers faced as they prepared a site at California's port of Long Beach for the Pier A...
Compaction Characteristics of Contaminated Soils-Reuse as a Road Base Material
Contaminated soils generated from leaking underground storage tanks (USTs) sites are classified as solid waste or non-hazardous waste. Since petroleum contaminated soils are solid waste...
Clearing the Air, Biologically
Using biofilters to reduce air pollution emitted from publicly owned treatment works is becoming more popular as owners realize how effective the systems are. The process cleans the air...
The Membrane Treatment
Innovations in the design and use of pressure-driven membranes can help municipalities reach stringent drinking water quality standards. Although membrane processes have been used successfully...
Long-Term Effects of Suspended Solids Loads on Constructed Wetland Performance
Discussion session summary....
After the Rain Has Fallen
Ground Water Management Symposium
This proceedings,
Water Resources Engineering '98
This proceedings,
Design of Municipal Wastewater Treatment Plants
This revised manual, updated from the previous edition, aims to be the principal reference of contemporary practice for the design of municipal wastewater treatment plants. The manual...
Net Gains
Project Web sites can be as simple as a repository for drawings and documents or complex enough to allow real-time dialogue between interested parties and project monitoring. One of GZA's...
Oil in the Soil
An oil well blowout in northern Italy contaminated about 1,500 ha of agricultural land primarily used to cultivate rice. The cleanup team decided to use bioremediation techniques because...
Brownfields by the Book
To spur the redevelopment of brownfield properties, many state legislatures have passed laws that allow developers to revitalize contaminated industrial sites without the high risks or...
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