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....
A Decision Support System for Assisting Operation of Artificial Recharge Systems
A series of simulation and optimization models analyzing artificial recharge systems have been linked within a decision support system (DSS) with a graphical interface. The model includes...
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...
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...
Water Resource Systems and Modeling of the Lower Virgin River Using EXCEL
(No paper) The first objective of this study was to determine the availability of water at the confluence of the Halfway Wash and the Virgin River and to simulate the diversion of river...
Underground Storage and Recovery: A Powerful Tool for the Management of the Limited Water Resources of the Phoenix Metropolitan Area
(No paper) The availability of imported Colorado River water to the Phoenix area in 1986 prompted the need for storage of the unused portion of each municipality's contracted allocation....
Putting Nature First
From salamander tunnels to hotels for red-legged frog, the $450 million Los Vaqueros dam and reservoir project in northern California put environmental concerns first in its planning and...
Geo-Engineering for Underground Facilities
The papers collected in this proceedings
Environmental Engineering '99
This proceedings,
Who Provides Inspection
With the increasing interest in the design-build project deliver system, the decision of who should be responsible for quality assurance/quality control has become a complex one. To assist...
Conquering the Mountain
Interstate 26 will be the largest and most expensive highway project ever undertaken in North Carolina. When completed in 2002, I-26 will provide safe and efficient interstate passage...
The Ultimate Challenge
The U.S. Department of Energy (DOE) has spent $2 billion and more than a decade studying the feasibility of constructing a nuclear waste repository inside Yucca Mountain in Nevada. The...
When the Levee Inflates
Rubber dams�long, flexible tubes, anchored to a concrete base and abutments and inflated with air or water�have been used since the 1950s, but installations have risen as technology has...
Rebuilding Bosnia
A civil engineer serving in the U.S. Army Reserve on deployment in Bosnia-Herzegovina gives a first-hand account of construction in a war-torn country. As a member of the Environmental...
Interest in Deposits (available only in Geoenvironmental Special Issue)
Sediment accumulating in reservoirs worldwide is gradually reducing storage capacity, posing a long-term threat to supplies of drinking and irrigation water. The buildups also highlight...
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...
Out of Sight, Out of Time
A 10-year grace period for complying with an EPA regulation mandating that all underground storage tanks have spill, overfill and corrosion protection runs out on December 22, 1998. Hundreds...
Pump-and-Treat Rescue
The pump-and-treat method of remediation has been regarded for years as unsuccessful and untrustworthy. But a recent project in Chicago showed that in conjunction with horizontal wells...
Future Fire Codes
Performance-based fire codes are a trend worldwide. The idea is to get away from prescriptive, cook-book codes that dictate design. Performance based codes should be more rational 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...
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