[CPEO-BIF] Massachusetts tightens imminent hazard standard for TCE

[Lenny Siegel <lsiegel@cpeo.org>]

MassDEP Tightens TCE Indoor Air Regulation: The $64,000 Question?  
What About Closed Sites?

by Seth D. Jaffe
Mondaq News Alerts (MA)
February 4, 2013

Last week, MassDEP released new guidance on how it is assessing  
exposures to TCE in light of EPA new assessment of TCE risks released  
in September 2011. The biggest issue is that concerns about fetal  
exposure have caused MassDEP to tighten the imminent hazard threshold  
for indoor air exposures to 2 ug/m3.  That's an order of magnitude  
reduction from the prior standard of 20 ug/m3.

MassDEP has apparently thus far taken the position that it is not  
planning on reopening closed sites based on the new IH criterion.   
However, they are going to be under a lot of pressure - including,  
based on my experience, from its own staff - to do so.  If there  
really is a fetal exposure risk, how can they not?

...

For the entire article, see
http://www.mondaq.com/unitedstates/x/219630/Waste+Management/MassDEP 
+Tightens+TCE+Indoor+Air+Regulation+The+64000+Question+What+About 
+Closed+Sites

You may need to copy and paste the link.

For the three-page guidance, go to
http://www.mass.gov/dep/cleanup/laws/tcestat.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: 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