Critical Subset Allocation: A Framework for Complex Remedial Sites

Critical subset allocation (CSA) is a methodology for allocating remediation costs at sites where multiple contaminants contribute to the exceedance of multiple regulatory risk standards. The basic unit of allocation in CSA is the critical subset, which is a subset of potentially responsible parties...

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Bibliographic Details
Published inEnvironmental forensics Vol. 16; no. 2; pp. 186 - 202
Main Author Beyer, Michael E.
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis 03.04.2015
Taylor & Francis Ltd
Subjects
allocation
Allocations
and Liability Act (CERCLA)
Bioremediation
Chemical contaminants
Compensation
Comprehensive Environmental Response
Contaminants
cost
Cost allocation
Costs
Criteria
Forensic engineering
Methodology
remedial
Remediation
risk
Superfund
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Summary:Critical subset allocation (CSA) is a methodology for allocating remediation costs at sites where multiple contaminants contribute to the exceedance of multiple regulatory risk standards. The basic unit of allocation in CSA is the critical subset, which is a subset of potentially responsible parties (PRPs) that meets two criteria: 1) the risks associated with the subset exceed at least one regulatory risk standard; and 2) at least one of the PRPs in the subset is individually necessary for the first criterion to be true. Each PRP is assigned an allocation score equal to the number of critical subsets for which that PRP is an individually necessary member. The allocation share of a PRP is equal to its allocation score divided by the sum of all PRP allocation scores.
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ISSN:1527-5922
1527-5930
DOI:10.1080/15275922.2015.1025151