Well Rehabilitation Using Decision Tree Analysis
The decision tree concept of decision analysis theory can be easily adapted to the water and wastewater industry in making spending decisions for rehabilitation programs, renewal and replacement...
Integrated Assessment of the Acid Deposition Problem
To perform fully integrated assessments of the acid deposition problem it is necessary to combine models of all major aspects of the problem, including emissions, atmospheric transport,...
Uncertainty in Unsaturated Zone Pollutant Transport
The portion of a pollutant spill transported to an underlying aquifer is uncertain due to the stochastic nature of precipitation and uncertainty in the geochemical properties of the contaminant...
The Role of Demand Forecasts in Pacific Northwest Power Planning
This paper has two primary objectives: to acquaint a general audience with the basic approaches used to forecast the demand for electricity, and to discuss the role of demand forecasts...
Energy Forecasting
When the traditional stability of growth in demand for electricity was disrupted in the mid-1970's, forecasters and planners were forced to reconsider their existing procedures....
Principles of Probabilistic Characterizations of Soil Properties
Sources of uncertainties affecting characterization of soil properties in a homogeneous soil layer include inherent spatial variability, systematic test bias, random test errors, calibration...
Modeling Effects of Toxicants on Aquatic Systems
Potential effects of chemicals on biomass production in aquatic systems are extrapolated from laboratory toxicological assays. The extrapolation requires that the effect of acute toxicity...
Hydraulic Uncertainty in Risk Analysis
Considerable effort has been expended in defining and evaluating hydrologic uncertainties; however, the analysis and evaluation of hydraulic uncertainties has received little attention....
Dynamic Reliability Models for Hydraulic Structures
In addition to the determination of capacity and layout of hydraulic structures under normal design, one other important but related task that faces engineers is the evaluation of reliability....
Practical Guidelines for the Selection, Design and Installation of Piles
This report provides an objective practical basis for the design and construction of pile foundations. Potential problems and uncertainties in pile design and construction are emphasized....
Writing an EIS for an Emerging Technology: DOE's Coal Liquifaction Projects
The emerging coal-derived synthetic fuel industry may be unique in that it has received public review of potential environmental effects before the first commercial scale plant is built....
Are American Utilities Sorry they went Nuclear�
The future of nuclear power in the U.S. will be determined in large measure by what the electric utilities decide to do. Very few electric utilities are planning to build more nuclear...
Cognac: World's Tallest Offshore Oil Platform
Shell Oil's 1980 OCEA-winner is a three-sectioned design of steel fabrication and deep-sea installation. Cognac is currently the world's tallest, heaviest, and...
Pitfalls of Overconservatism in Geotechnical Engineering
The article cites at least three reasons why geotechnical engineers may be overconservative: (1) They may try to satisfy unreasonable standards established by themselves or others; (2)...
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