Impacts of CSO Swirl Concentrator on Dissolved Oxygen Concentrations in the Anacostia River
Purpose: To assess impacts of the CSO control, two continuous monitoring stations were located upstream and downstream from the CSO outfall. The monitors recorded dissolved oxygen (DO),...
Theoretical and Empirical Implications of Increasing Block Rates
(No paper) The U.S. Army disposed chemical agents, laboratory materials, and unexploded ordnance at the O-Field landfill from before World War II until at least the 1950s. Soil, ground...
The Emergence of Spill Prevention Concerns for Water Resources
In Regions where water pollution control programs have succeeded in cleaning up our waters, spills from fixed installations and vessels, trucks and trains continue to represent a very...
Rising Water and Nitrate Levels within an Alluvial Aquifer near Phoenix, Arizona
(No paper) An analysis of water level data from more than a hundred water supply wells show that water levels have been rising at a considerable rate since 1980 in some portions of the...
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....
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...
Building Knowledge (Available only in Structural Engineering Special Issue)
The Integrated Teaching and Learning Laboratory (ITLL) at the University of Colorado provides hands-on engineering lessons for students. Electrical, HVAC, structural, illumination, and...
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...
Transportation, Land Use, and Air Quality
Making the Connection
This proceedings contains papers presented at a specialty conference entitled
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,
Transportation Planning and Air Quality III
Emerging Strategies and Working Solutions
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...
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