Retrofitting CSO Infrastructure in New Haven, Connecticut
(No paper) The City of New Haven Water Pollution Control Authority operates a wastewater collection and treatment system which serves over 130,000 residents in the cities of New Haven,...

Evaluation of a Soil Vapor Extraction System: A Post-Audit Assessment
(No paper) Numerous sites contaminated with volatile organic compounds (VOC) have implemented soil vapor extraction (SVE) systems to remediate the unsaturated zone. The SVE systems have...

Dynamic Groundwater Remediation Design with Genetic Algorithms
In groundwater remediation design it has been shown that dynamic policies, in which the pumping strategies may vary throughout the remediation period, can result in more cost-effective...

Optimization of the Aquifer Remediation Costs and Design with Pulsed Pumping
(No paper) Pump-and-treat is a common technique for the remediation of contaminated aquifers. However, slow kinetic mass transfer at sites contaminated with organic compounds may reduce...

Risk-Based Corrective Measures for Waste Management Facility Closure
(No paper) In the past several years, risked-based corrective measure has been gradually accepted by federal and state agencies as a standard practice for site remediation or site closure....

Integration of SWMM and ARCVIEW GIS for Interactive Decision Support
(No paper) This paper covers the integration of the EPA SWMM runoff model and ESRI's ArcView GIS for utilization by the City of Phoenix for decision support concerning land use changes...

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...

Evaluation of Two-Species Model for Chlorine Decay and THM Formation under Rechlorination Conditions
(No paper) Typically, chlorine decay has been described by a first-order decay model. The first-order model, however, has two drawbacks: 1) the reactive species within the water is assumed...

The Tres Rios River Management Plan: The Result of Multi-Agency Partnering for Management and Restoration at the Confluence of the Salt, Gila and Aqua Fria Rivers
(No paper) The framework consists of a an Oversight Committee made up of Agency Department Heads, a Steering Committee comprised of local area Agency managers, and five Technical Committees:...

Title Transfer of U.S. Bureau of Reclamation Projects: Fact or Fiction
(No paper) The U.S. Bureau of Reclamation (Reclamation) has constructed hundreds of water storage and delivery projects throughout the 17 western United States. These projects vary in...

Using Indirect Potable Reuse to Provide New Water Supplies in Resource-Limited Regions
(No paper) Historically, water resources needed for potable use have been derived from readily-accessible surface and groundwater supplies of freshwater origin because such supplies can...

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...

City of Sedona Wastewater Reclamation Plant Upgrade: How to Teach an Old Dog New Tricks
(No paper) The City of Sedona's early 1990's wastewater treatment plant was difficult to control, prone to plant upsets, near capacity and often experienced on-site sewage spills. Additionally,...

Environmental Engineering '99
This proceedings, Environmental Engineering 1999, contains summaries of papers presented at the 1999 National Conference on Environmental Engineering...

Evaluation of the ISOGRID Retaining Wall System
Prepared by the Highway Innovative Technology Evaluation Center, a CERF service center. This report presents the results of a HITEC evaluation of the...

Tunneling under Trains
The Singapore deep tunnel sewerage system consists of a 90 km long tunnel network that will convey wastewater by gravity flow to two new secondary treatment plants being planned for the...

Conquering the Cold
Three projects�a water treatment plant, an airport, and a hydroelectric plant�illustrate how practicing engineering in Alaska differs from working in the contiguous 48 states. Permafrost,...

For the Duration
The U.S. Army Corps of Engineers developed a new grouting method called duration grouting when constructing the foundations for the Portugues Dam in Ponce, Puerto Rico. The site is marked...

Evaluation of the SSL MSE PlusTM Retaining Wall System
Prepared by the Highway Innovative Technology Evaluation Center (HITEC), a CERF service center. This report describes a HITEC evaluation designed to...

 

 

 

 

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