Efficiency-Based Monitoring System Design
An analytical Monitoring Efficiency Model (MEMO) is presented to support the design of monitoring well networks at hazardous waste sites. The method simulates the migration of hypothetical...
A Model to Predict the Production Rate of AMD
Results generated from a model to deterministically calculate the production rate of acid mine drainage compared to those generated by an empirical model are nearly identical. The model...
Overview of Acid Mine Drainage Control Strategies
Since 1970, regulations requiring proper overburden sampling techniques to obtain representative geologic profiles and outline specific overburden analysis to determine acid-producing,...
Volcanic Episodes Near Yucca Mountain As Determined by Paleomagnetic Studies at Lathrop Wells, Crater Flat, and Sleeping Butte, Nevada
It has been suggested that mafic volcanism in the vicinity of Yucca Mountain, Nev., is both recent (20 ka) and a product of complex 'polycyclic' eruptions. This...
Pore-Water Extraction from Unsaturated Tuffs Using One-Dimensional Compression
To support the study of the unsaturated-zone hydrochemistry at Yucca Mountain, Nevada, a one-dimensional compression system was developed and tested to extract unaltered and uncontaminated...
Norfolk Uses a GIS to Satisfy its Stormwater Management Information Needs
The key component of stormwater management is to obtain a good understanding of the data describing the system so that regulatory, maintenance, and capital decisions concerning the system...
Integration of SCADA and GIS Technologies in Jefferson Parish, Louisiana
Due to its physiographic setting in the delta region of the Mississippi River, a majority of the inhabited lands in Jefferson Parish, Louisiana are below local mean sea level and much...
Automated Estimation of Hydrologic Parameters
An expert system was developed that automatically generates drainage area boundaries and times of concentration using digital elevation and stream data. Drainage areas and hydrographs...
Unique Water Quality Aspects of Lake Pontchartrain
Natural factors causing changes in Lake Pontchartrain, can be grouped into the following: subsidence and wetland loss due to the deterioration of the St. Bernard Delta, natural variations...
Forthcoming ASCE/WPCF Manual of Practice
The forthcoming ASCE/WPCF Manual of Practice for the Design and Construction of Urban Stormwater Management Systems includes, as Chapter 1, a derivation of the following text. This chapter...
Urban Storm Drainage Design Hydraulic Principles
Chapter 6 of the manual on Design and Construction of Urban Storm Water Management Systems discusses the hydraulic principles and equations under which drainage system structures must...
Drainage Design Criteria: Too Restricted? Too Broad? Too Outdated?
Should drainage design policies be more flexible, leaving the field more open to engineering judgment? Are some policies too loose or broad? Should design criteria more closely reflect...
Challenges in Planning and Design of Drainage Facilities for the Orange County Toll Roads
The Orange County Toll Roads project is a program which includes three modern, high-capacity, limited access highways; the Foothill, San Joaquin Hills and Eastern Transportation Corridors....
Mission Bay Park, San Diego Sewage Interceptor System
Mission Bay Park is a major aquatic facility located in, and operated by, the City of San Diego. In response to sewer related pollution problems, the City of San Diego has embarked on...
What is a Drainage Utility?
A drainage utility is: a financing mechanism, providing a stable and dedicated funding source for surface water quality and quantity control; and a governmental entity whose mission is...
Urban Drainage Design Potpourri: Avoiding Pitfalls
In the process of mastering various methods or programs used to estimate storm runoff and flow rates, fundamental principles can be overlooked or even misunderstood. Discussed herein are...
Summary of the National ASCE Task Committee on Costs-Benefits of Various Design Frequencies for Urban Drainage Systems and Flood Control
The National ASCE Task Committee on: 'COSTS-BENEFITS OF VARIOUS DESIGN FREQUENCIES FOR URBAN DRAINAGE SYSTEMS AND FLOOD CONTROL' recommends that public officials...
Applying Benefits-to-Costs Analysis for Stormwater Improvement Projects
Benefit-to-cost analyses provide a measure of evaluation for the justification, selection, and prioritization of stormwater improvement projects. Facing increased competition for tax dollars...
Experiences with Military Installation Drainage Systems
This paper presents a brief survey of experience with drainage systems found on Army bases. In addition, selected current drainage-related research topics which support Army installations...
Model Mania in Urban Hydrology: Present Dilemmas
A recent ASCE Task Committee on microcomputer software in urban hydrology has just completed its inventory of 40 software packages available at modest cost to the urban drainage engineer....
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