[CPEO-BIF] California's Vapor Intrusion Mitigation Advisory

[Lenny Siegel <lennysiegel@gmail.com>]

California's Department of Toxic Substances Control has released its 
Vapor Intrusion Mitigation Advisory. To download, go to 
http://www.dtsc.ca.gov/SiteCleanup/upload/VI_Mitigation_Advisory_Apr09.pdf

"The California Department of Toxic Substances Control (DTSC) is issuing 
this Vapor Intrusion Mitigation Advisory for immediate use on sites that 
may be impacted by soil vapor intrusion into indoor air. The mitigation 
alternatives described in the Advisory are response actions designed to 
interrupt or monitor the vapor intrusion pathway and ensure public 
safety until volatile chemical concentrations in soil, soil gas, and/or 
groundwater are confirmed to have been restored to concentrations at or 
below levels considered safe for human exposure.

"DTSC developed the Vapor Intrusion Mitigation Advisory primarily as a 
guide for DTSC staff. Other agencies, environmental consultants, 
responsible parties, community groups, and property developers may find 
the Advisory useful. DTSC fully expects that users of the Advisory will 
identify areas for improvement.

"Additionally, new and innovative technologies may result in developing 
mitigation approaches not anticipated at the time of publication. DTSC 
will accept comments from interested parties for a six month period 
(ending October 31, 2009). At that time, DTSC will review and 
incorporate changes as needed...."


--


Lenny Siegel
Executive Director, Center for Public Environmental Oversight
a project of the Pacific Studies Center
278-A Hope St., Mountain View, CA 94041
Voice: 650/961-8918 or 650/969-1545
Fax: 650/961-8918
<lsiegel@cpeo.org>
http://www.cpeo.org



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