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February 2010
Vapor Intrusion Newsletter
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EPA IG Issues VI Report

On December 14, 2009 the EPA Office of the Inspector General issued its final report, Lack of Final Guidance on Vapor Intrusion Impedes Efforts to Address Indoor Air Risks. The report recommends that EPA update, finalize, and broaden the scope of its VI guidance as well as provide final toxicity values for trichloroethylene and perchloroethylene. The report can be found at:

Maine Issues VI Guidance

On January 14, 2010 the Maine Department of Environmental Protection, Bureau of Remediation and Waste Management, issued its vapor intrusion guidance document. The document can be found at:

AEHS West Coast Conference

The Twentieth Annual Association for Environmental Health and Sciences Meeting and West Coast Conference on Soils, Sediments, and Water will be held in San Diego, CA on March 15-18, 2010. EPA will be chairing an all day vapor intrusion session on March 16 where three new EPA technical documents will be discussed. The vapor intrusion documents to be covered are Background Indoor Air Concentrations, EPA's Vapor Intrusion Database, and Conceptual Model Scenarios. The EPA one day session can be attended by itself for $210. There is also a petroleum vapor intrusion workshop scheduled for the evening of March 16 as well as other vapor intrusion platform sessions on March 15. The preliminary program can be found at the following link:

ITRC Classroom VI Training

The Interstate Technology and Regulatory Council will be offering its two day course, Vapor Intrusion Pathway: A Practical Guideline, in Norfolk, Virginia on March 22-23, 2010. Information on the course is found at:

API Releases Bio Vapor Software

The American Petroleum Institute has placed its Bio Vapor Indoor Vapor Intrusion Model on its website and made it available for free download. The model is applicable to releases of petroleum hydrocarbons to the subsurface and accounts for oxygen-limited aerobic biodegradation. The model can be used either to predict indoor air concentrations or to back calculate source concentrations. The model may be found at:

ASTSWMO Petroleum Vapor Intrusion Status Report

The Association of State and Territorial Solid Waste Management Officials issued a six page status report on petroleum vapor intrusion in January 2010. The report can be found at:

Gannett Fleming VI Course

Dr. Atul Salhotra of Gannett Fleming, Inc. is presenting a one day course, Science, Regulation, and Case Studies on Indoor Vapor Intrusion Pathways, on February 16, 2010 in East Lansing, MI. The announcement of the course is found at:

AWMA Vapor Intrusion 2010 Conference

The Air and Waste Management Association will be holding a Vapor Intrusion 2010 conference in Chicago, IL on September 29-30, 2010. The deadline for abstract submittal is February 22, 2010. Preliminary information regarding this conference can be found at:

phone: 303-790-1340
This newsletter is issued periodically to provide our readers with information on new regulatory and technical developments in the rapidly changing field of vapor intrusion. While every effort is made to ensure that the information and links presented in this newsletter are accurate at the time of publication, they are presented for general information purposes only. Users should independently verify the accuracy and applicability of this information and seek professional advice for any specific sites or purposes. Articles on or links to any document or website do not imply endorsement of that document or website by EnviroGroup. Copyright EnviroGroup Limited 2010. 7009 S. Potomac Street, Centennial, CO 80112.
Please contact us if you have any questions about the topics presented in this newsletter, or vapor intrusion in general. More information about EnviroGroup Limited, including several useful links to vapor intrusion websites, is available at: http://www.envirogroup.com/vaporintrusion.php

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