[CPEO-MEF] VOCs: Kelly Air Force Base (TX) neighborhood vapor intrusion

[Lenny Siegel <lennysiegel@gmail.com>]

[I don't want to alarm people unnecessarily either, but my reading of 
the data is that for the first time vapor intrusion has been confirmed 
in the neighborhoods near Kelly Air Force Base. The data thus far shows 
marginally unacceptable risk at some locations, suggesting the need for 
more data. Soil gas and indoor air results are notoriously subject to 
geospatial and temporal variability, so levels could be higher in some 
homes. From what I've heard, EPA has been telling people that PCE has 
not been found at "harmful," levels, but the data does not support that 
assertion. - LS]



Toxic chemical levels 'not alarming'

Anton Caputo
San Antonio Express-News (TX)
July 27, 2008

Underground toxic chemicals do not appear to be seeping into homes just 
north of the defunct Kelly AFB at dangerous levels, according to federal 
regulators who conducted air quality testing in five area homes.

The recently released test results show two of five homes with levels of 
toxins at or near screening levels that could trigger more federal 
scrutiny. But Cheryl Overstreet, a toxicologist with the Environmental 
Protection Agency, termed the results "not alarming at all." Still, the 
agency would like to return this winter for a battery of tests to 
determine if there is any seasonal variability in the level of chemicals.

"I'm hoping that this is not the end," Overstreet said. "To make the 
data more robust we would like to have more of it."


...

For the entire article, see
http://www.mysanantonio.com/news/Toxic_chemical_levels_not_alarming.html

--


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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