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Main Title CERCLA Site Close Out. How Clean is Clean. An EPA Perspective.
Author H. Levine
CORP Author Environmental Protection Agency, San Francisco, CA. Region IX.
Year Published 2010
Stock Number ADA554069
Additional Subjects Chemical contamination; Decontamination; Ground water; Sites; Solvents; Standards; Statistical analysis; California; Case studies; Concentration(Chemistry); Environmental law; Extraction; Hydrography; Regulations; Sampling; Water pollution; Water wells; Site closures; Cleanup standards; Chlorinated solvents; Groundwater contamination; Groundwater extraction; Cercla(Comprehensive environmental response compensation and liability act); Superfund sites; Monitoring wells; Extraction wells; Cleanup evaluation; Briefing charts
Holdings
Library   Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS ADA554069 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 07/11/2012
Collation 34p
Abstract
This talk will present a regulatory perspective on site closure and the attainment of cleanup standards. Two major questions arise in evaluating the attainment of a cleanup standard: (1) Is the site really contaminated because a few samples are above the cleanup standard, and (2) Is the site really 'clean' because the sampling shows that the majority of samples are below the cleanup standard. Statistical methods allow for decision making under uncertainty and permit valid extrapolation of information that can be used with confidence to determine whether the site meets the cleanup standard. A case study is presented that illustrates some of these methods.
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