Vapor Intrusion Program Update HQ Perspective Vapor Intrusion ...

Recent EPA ProductsBrownfields Technology Primer:Vapor Intrusion Considerations forRedevelopmenthttp://www.brownfieldstsc.org3

2002 VI DerivativesTechnical Updates to 2002 EPA VaporIntrusion Draft Guidance2007 ITRC Guides (Complement)4

VI Products in DevelopmentVapor Intrusion DatabaseBackground Levels of Contaminant VaporsConceptual Site ModelJohnson & Ettinger Model UpdatePolicy for Vapor Intrusion in Non-Residential SettingsDraft TCE Toxicity Values for Risk Assessment and theVapor Intrusion PathwayAir Vapor Intrusion Mitigation ApproachesO&M for Soil Vapor Intrusion Mitigation SystemsVapor Intrusion “Roadmap”5

Vapor Intrusion DatabaseDraft technical database of pairedobservations of: groundwater-, soilgas-, subslab-, and crawlspace-toindoorairCurrently available for reviewhttp://iavi.rti.org Final version second half of 20086

Background Levels of Contaminant VaporsDocument compiling indoor airconcentrations in non-affected buildingto recognize background vs vaporintrusion. Draft version first half of 2008 Final version second half of 20087

Conceptual Site ModelProvide theoretical overview ofvapor intrusion processes andpathways under various scenarios Draft version second half of 2008 Final version first half of 20098

Johnson & Ettinger Model UpdateTechnical update will provideimproved model spreadsheets withmore accurate ranges for inputs Draft version second half of 2008 Final version first half of 20099

Policy for VI in Non-Residential SettingsProvide guidance to EPA personnel indetermining when to address potentialvapor intrusion into non-residentialsettings Currently in internal EPA review10

Draft TCE Toxicity Values for Risk Assessmentand the Vapor Intrusion PathwayChemical toxicity hierarchy when noEPA values for risk assessmentPrimarily focused on California EPAand New York State Dept of Health With OPEI for OMB review Peer Review late Summer 200811

Air Vapor Intrusion Mitigation ApproachesEngineering Forum and ORD CollaborationTechnology transfer document as EngineeringIssuesIdentifies data needs for approaches & technologies tomitigate VI problems by RPMs, OSCs, and other sitemanagersFinalized for NARPM12

O&M for Soil Vapor Intrusion (SVI)Mitigation Systems Under development: Policy forconducting O&M of VI mitigationsystems at Fund-lead sites A draft policy could be available forRegional review late this calendar year13

Vapor Intrusion “Roadmap”Provide roadmap to EPA personnel onaddressing potential VI cases using he latesttechnical tools available2002 Draft Guidance for Evaluating the Vapor Intrusion toIndoor Air Pathway from Groundwater and Soils2007 Vapor Intrusion Pathway: A Practical GuidelineVapor Intrusion DatabaseIndoor Air Background LevelsConceptual Site ModelJohnson & Ettinger Model Update Initial Draft July 200814

Vapor Intrusion Forum Regional, HQ & ORD VI enthusiasts Developing Forum Mission Information Sharing Communication Review Election of Regional Co-Chairs15

Contact Information:Dave Bartenfelder(703-603-9047)bartenfelder.david@epa.gov16