Suchergebnisse

The overall goal of this research was to provide Department of Defense (DoD) decision-makers in the Republic of Korea (ROK) with preferred innovative site characterization technologies and risk assessment methods to meet their needs in obtaining hazardous waste site data and then prioritizing those sites for remediation based upon risk. The study examined the following: primary sources and types of existing contamination at DoD installations in the ROK; available site characterization data; criteria to be used in selecting innovative site characterization technologies; costs and capabilities of the innovative site characterization technologies; risk assessment or risk-based corrective action (RBCA) methods available for employment; criteria to be used in selecting the preferred risk assessment or RBCA method; data requirements and the advantages and disadvantages of the risk assessment and RBCA methods. The Analytic Hierarchy Process was utilized to rank site characterization technologies and risk assessment/RBCA methods preferred for the unique requirements of DoD installations in Korea. Results revealed that the decision-maker preferred innovative site characterization technologies producing data of high quality and a flexible RBCA method that permits the establishment of sound remedial goals. Future research is required to evaluate the feasibility of remedial alternatives once data are collected and policy established.

AbstractDOE, EPA, and the Kentucky Department for Environmental Protection (KDEP) have been negotiating a Federal Facilities Agreement (FFA) for cleanup of the Paducah Gaseous Diffusion Plant (PGDP), located in southwestern Kentucky. The PGDP is a Federal Facility Superfund Site that is managing its hazardous wastes pursuant to permits issued by EPA and KDEP under the Resource Conservation and Recovery Act (RCRA) and state law. While the cleanup of the PGDP continues, the parties have had difficulty in finalizing the FFA, which is required by Section 120 of the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA). The article reviews the current status of CERCLA and RCRA law in this area and suggests a way to break through the impasse that has been hampering the negotiations.

This brief represents a comprehensive review of methods for estimating characteristics of the foreign-born population in the United States, specifically oriented toward characteristics by legal status. A variety of methods have been proffered over the past many decades, in a large variety of venues; this work brings them together, attempts to impart some order on the definition of 'legal status,' and describes strengths and deficiencies both in methods and in data. The authors have a combined 50 years of experience in both demographic and statistical methodology.