Watershed-Based Permitting — A Myth or Reality?
The United States Environmental Protection Agency has promulgated the Total Maximum Daily Load process to achieve the goals of the Clean Water Act. The TMDL processis applied to water...

Simulating Radionuclide Transport Away from an Underground Nuclear Test: Linking Non-Isothermal Flow and Mechanistic Reactive Transport
The low-yield (0.75 kiloton) Cambric underground nuclear test situated in alluvium below the water table offers unique perspectives on radionuclide transport in groundwater. The Cambric...

Evaluation of IA SWAT Testing Protocol for ET Controllers
In recent years the Irrigation Association (IA) has developed a testing protocol for Smart Water Application Technologies (SWAT). These technologies consist of irrigation controllers such...

Water for Life: Have Improvements in Water and Wastewater Infrastructure along the Rio Grande/Rio Bravo Affected the Lives of Mexico and Texas Border Residents?
Prior to 1990 the poor communities along the Mexico/US border did have not have comparable waterand wastewater infrastructure investments that exist in other US cities. The explosion of...

Effects of Impervious Area Estimation Methods on Simulated Peak Discharges
The variability of simulated flood discharges is evaluated using two methods for estimating impervious surfaces and common design methods in the Mission Creek watershed (31 sq km) located...

Summary of Approaches for Estimating Playa Lake Flooding
Playa, or terminal, lakes are common in semi- and arid environments; and their characteristic level, hard, and usually dry surfaces make them ideal for airports, as they are used in the...

2008 Civil Engineering Industry Buyer' Guide
A Special Supplement to Civil Engineering Magazine
This guide covers the following topics: Construction materials; Geotechnical and environmental; Information technology; Pipelines, sewers, and accessories; Professional and professional...

Evaluation of Geopier Rammed Aggregate Piers by Geopier Foundation Company
Final Report
Prepared by the Highway Innovative Technology Evaluation Center (HITEC). This report describes a HITEC evaluation designed to determine the basic capabilities...

Considerations Regarding Geochemical Transformations Downstream of Subsurface Wastewater Effluent Disposal Facilities
Many suburban and rural communities use subsurface disposal in conjunction with on-site and other small decentralized systems. In addition, to reduce the impacts of wastewater treatment...

Domestic-Well Water-Quality Data and Reports for the Environmental Public Health Tracking Network: USGS and CDC Collaboration
The mission of the Environmental Public Health Tracking (EPHT) Program is to provide information from a nationwide network of integrated health and environmental data that drive actions...

Watershed Modeling for Surface-Groundwater Interaction
Groundwater use has increased rapidly due to irrigation development in the Great Plains. This is especially true in the Republican Basin that intersects the three states of Nebraska, Kansas...

A Decision Framework for Stormwater Control in Urbanized Watersheds
Historically, urban growth occurred around water bodies due to factors such as easy access to transportation, water supply, and drainage. With the expanded transportation network along...

The Role of Aesthetics in Bridge Design
The role of aesthetics in current bridge design practice varies widely. Many bridgeprojects in the United States are developed without including aesthetics as one of theproject goals....

Optimization of Well Placement in Groundwater Long Term Monitoring Networks
Long Term Monitoring (LTM) networks play critical roles in tracking the migration of contaminants in groundwater, evaluating the efficiency of the existing remediation techniques, and...

Analytical Solutions for Coupled Reactive Transport Equations
Modeling the transport of reactive contaminants is one of the key challenges faced by groundwater engineers worldwide. Specifically, problems involving the transport of sequentially decaying...

History of the USDA-ARS Experimental Watersheds on the Washita River, Oklahoma
A national experimental watershed network, operated by the Agricultural Research Service of the US Department of Agriculture, was established in 1959 to conduct research on the effects...

Challenges in Drinking Water Distribution Systems Security Modeling
This paper is on challenges in drinking water distribution systems security modeling connected to OCMS, addressing research and practical issues coming-out from two recent activities which...

Characterization of Interaction of Surface Water and Groundwater in the El Paso Lower Valley of Texas
El Paso is located in the Chihuahua desert and prone to long periods of extreme drought. With the river drought, regional irrigation districts only received 34% and 38%of a full water...

Drinking Water Distribution Systems: A Dual-Use Vision for Implementing an Environmental Observatory for an Engineered System
The U.S. Environmental Protection Agency (EPA), under Homeland Security Presidential Directive 7, has been tasked as the lead federal agency in protecting water infrastructure in the U.S....

Railroad Performance and Repair
This chapter covers railroad performance and repair. Railroads in Alabama, Louisiana, and Mississippi are discussed....

 

 

 

 

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