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Delisting Technical Support Document

The Delisting Technical Support Document (DTSD), EPA906-D-98-001, presents extensive information delineating all chemical release, exposure and risk assessment algorithms employed by the Delisting Risk Assessment Software (DRAS) program. Anyone wishing to gain technical insight into the RCRA delisting risk-based process may review information provided in the document. The DRAS User's Manual is also included at this web page. The User's Manual provides the DRAS program's minimum and recommended system requirements as well as an overview on how to use the DRAS program.

The DTSD is available below in Adobe Acrobat format. To permit easier downloading, the DTSD and the accompanying appendices have been subdivided. The documentation is indexed as illustrated below:

Chap1.pdf: DTSD Introduction Chapter
Chap2.pdf: DTSD Estimation of Chemical Releases and Media Concentrations
Chap3.pdf: DTSD Exposure Scenario Selection
Chap4.pdf: DTSD Quantitative Estimation of Risk
Chap5.pdf: DTSD Uncertainty
Chap6.pdf: DTSD References
Appd1a.pdf: DTSD Appendix with Chemical Data for Waste Constituents in DRAS
Appd1b.pdf: DTSD Appendix with Chemical Data for Waste Constituents in DRAS
Appda2.pdf: DTSD Appendix with National Primary Drinking Water Standards
Appda3.pdf: DTSD Appendix with Soil Saturation Values
Appda4.pdf: DTSD Target Organs and Critical Effects for Compounds with Reference Doses
Appda5.pdf: DTSD Appendix with Default Variables: Abbreviations, Units and Values
Uguide.pdf: DTSD User's Guide

 

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