Transportation Planning and Air Quality II
This proceedings,
Environmental Campus for EPA
Green design, fiscal responsibility and a new Corps of Engineers value engineering program come together in EPA's $240 million new central research campus to be built in North...
Constructing Around Contamination
When soil and ground water contamination are found at a construction site, completing the project on time and within budget is always a challenge. Typical problems include constraints...
Computer-Aided Cleanup
In late 1992, the remedial investigation of Operable Unit 2 at the Department of Energy's Fernald Superfund site in Ohio was in trouble. Despite years of effort-including...
Existing Sewer Evaluation and Rehabilitation
This manual,
Information, Global-Style
The quality, timeliness and accuracy of information can give an international architectural, engineering and consulting firm a distinct competitive advantage, and the wrong system can...
Quality Assurance for Hazardous-Waste Projects
An important aspect of an environmental Quality Assurance (QA) Program, as with any system designed to improve quality of performance, is the specification of objectives which, if met,...
A Natural Cleanup
For almost 30 years, nonvolatile petroleum hydrocarbons from used motor oil, diesel, gasoline and other automotive fluids had been released to an oil sum at a truck-maintenance facility...
Data Validation Practices and Risk Assessment
The accuracy of environmental site assessments depends on the validity of the data used to make them, but all too often, the people who judge the quality of the data have little idea of...
What Do You Mean by That?
The engineering and construction profession, like any other, has its own buzzwords and jargon. But as terms become ingrained in the profession's lexicon, they take on different...
Predicting Pollution
For urban areas struggling to meet the requirements of the 1990 Clean Air Act as well as state air-quality mandates, accurate forecasting of mobile emissions is critical to evaluating...
Sensitivity Analyses for Total-System Performance Assessment
As a follow-on to Sandia's 1991 preliminary total-system performance assessment of the Yuc1ca Mountain site, this paper presents results of some sensitivity analyses that were done using...
The Most Likely Groundwater Flux Through the Unsaturated Tuff Matrix at USW H-1
Using a probabilistic inverse method, an estimate is made of the groundwater flux through the unsaturated tuff matrix at drill hole USW H-1 in Yucca Mountain. The most likely flux is found...
Radionuclide Migration to the Aquifer Through the Porous Medium
Time dependent doses of radionuclides from a waste container to the aquifer through porous medium are analyzed for (1) congruently released transuranic elements such as Np-237 and (2)...
Groundwater Impacts of Foreseeable Human Activities on a HLW Repository
The Nuclear Regulatory Commission (NRC) staff has begun a program of Systematic Regulatory Analysis (SRA) to help ensure that all important technical issues related to the disposal of...
Groundwater Transport Characteristics of Fracture Zones in a Granite Batholith
Major low-dipping fracture zones are the dominant pathways for the large scale circulation of groundwater through the Lac du Bonnet granite batholith of southeast Manitoba, Canada. The...
Role of Fracture Zones in Controlling Hydraulic Head and Groundwater Flow?Experience from Site Characterization Program in Finland
The preliminary site investigations for the final disposal of HLW produced by TVO have been carried out during 1987 - 1992 in five areas. All the areas consist of Precambrian crystalline...
Discrete Feature Modelling at the Stripa Mine in Sweden: Significance for Hydrologic Modelling of Fractured Rock Masses
The third and final phase of the Stripa Project included a series of characterization efforts, predictions, and validations to determine the viability of discrete-fracture groundwater...
Scenario Development for Performance Assessment?Some Questions for the Near-Field Modelers
In an attempt to achieve completeness and consistency, the performance-assessment analyses developed by the Yucca Mountain Project are tied to scenarios described in event trees. Development...
Hydrogeochemical Site Investigations by Teollisuuden Voima Oy, Finland
Groundwater samples collected from cored boreholes (500-1000 m), borehole wells and multilevel piezometers in crystalline bedrock have been characterized and classified. The reference...
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