[CPEO-MEF] TCE Assessment finalized

[Lenny Siegel <LSiegel@cpeo.org>]

Please excuse duplicate postings.

U.S. EPA has just released the final Integrated Risk Information System (IRIS) Assessment for trichloroethylene. The Assessment is available on line at http://www.epa.gov/ncea/iris/subst/0199.htm. It establishes for the first time official risk values for both cancer and non-cancer risk for both oral and inhalation exposures. 

TCE is one of the most common contaminants at federal and civilian Superfund and other hazardous waste sites. I believe the new Assessment will lead directly to more protective exposure standards for vapor intrusion, and it is also likely to cause the re-evaluation and possibly lowering of the drinking water standard for TCE, often used as a remedial action objective for groundwater cleanup. As Joe Biden would say, this is a big deal!

For a little history on the development of the TCE IRIS Assessment, see http://switchboard.nrdc.org/blogs/jsass/epa_finalizes_long-delayed_tce.html 

Monday night I posted a letter, signed by activists across the country, asking that the Assessment be immediately released.

Lenny

--

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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