[CPEO-BIF] Ohio EPA Vapor Intrusion Guidance

[Lenny Siegel <lsiegel@cpeo.org>]

OHIO EPA’S NEW GUIDANCE RAISES STAKES ON VAPOR INTRUSION

by Joe Koncelik
Tucker Ellis LLP
September, 2016

 
On August 24, Ohio EPA released new guidance that incorporates an unprecedented approach to vapor intrusion. Under the new guidance, Recommendations Regarding Response Action Levels and Timeframes for Common Contaminants of Concern at Vapor Intrusion Sites in Ohio, the Agency is for the first time demanding immediate action when contaminant levels exceed certain established “trigger” levels. In the case of one particular contaminant – trichloroethylene (TCE) – the Agency expects action within days if the associated trigger levels are exceeded.
 
The guidance, as outlined below, has major implications for businesses, property owners, consultants and attorneys. The guidance establishes specific trigger levels for sub -slab and indoor air that if those levels are exceeded require immediate follow-up action. With regard to TCE, it establishes trigger levels for groundwater in addition to sub-slab and indoor air. Groundwater or sub-slab exceedances will require immediate indoor air sampling. If indoor air trigger levels are exceeded, immediate action is required in the form of installation of a remedy and/or notifying regulators. The response times for exceedance of indoor air trigger levels are set forth below.

...

For the entire Client Alert, see
http://www.tuckerellis.com/userfiles/file/Vapor%20Intrusion_September%202016.pdf

For the Ohio EPA Guidance, go to
http://www.ohioenvironmentallawblog.com/uploads/file/Response%20Action%20Levels%20for%20VOC%20Final08_24_2016.pdf

--

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/Fax: 650/961-8918 
<lsiegel@cpeo.org>
http://www.cpeo.org

_______________________________________________
Brownfields mailing list
Brownfields@lists.cpeo.org
http://lists.cpeo.org/listinfo.cgi/brownfields-cpeo.org