[CPEO-BIF] Short-term exposure to TCE vapor intrusion

[Lenny Siegel <lsiegel@cpeo.org>]

The Complexity Associated with Setting Non-cancer Indoor Air  
Remediation Goals for Trichloroethylene Based on Short-term Exposure  
at Groundwater Contamination Sites

by William Walsh
Pepper Hamilton LLP Environmental Client Alert
June 24, 2014

Over the last few years, there has been increasing consideration of  
vapor intrusion in groundwater investigations, groundwater remedy  
selection, periodic reviews of the continued safety of already  
implemented groundwater remedies, environmental due diligence, and  
property and personal injury litigation. The frequency and complexity  
of vapor intrusion evaluations and re-evaluations is driven by new,  
more explicit, vapor intrusion guidance documents and regulations  
promulgated by the Environmental Protection Agency (EPA) and state  
regulators, voluntary industry standards (such as the ASTM  
International's E1527-13, Standard Practice for Phase I Environmental  
Assessments (December 30, 2013) (ASTM VI Standard)), the EPA’s  
controversial adoption of a novel, much more stringent non-cancer  
toxicity factor for trichloroethylene (TCE) in 2011, and the concerns  
of local residents. This article focuses particularly on the problems  
that plumes of TCE (a common groundwater contaminant) present to  
regulators and potentially responsible parties (whether private  
companies or governmental responsible parties) attempting to address  
vapor intrusion, and suggests some prudent actions that the private  
sector might consider.

...

For the entire article, see
http://www.pepperlaw.com/publications_update.aspx?ArticleKey=2978


--

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

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