Re: [CPEO-MEF] EPA's response to Children's Health Committee letter on perchlorate

[Lenny Siegel <lsiegel@cpeo.org>]

I should have mentioned, in my earlier summary, that Assistant 
Administrator Bodine did not directly address one of the primary 
contentions of the Children's Health Committee: That nursing infants may 
be exposed to five to ten times as much perchlorate as the reference 
dose, the level at which EPA expects "no statistically or biologically 
significant increase in as observable nonadverse effect."

To download the Committee's March 8, 2006 letter as a 704K PDF file, go to
http://yosemite.epa.gov/ochp/ochpweb.nsf/content/30806_3.htm/$file/30806_3.pdf


Lenny
--
Lenny Siegel
Director, Center for Public Environmental Oversight
c/o PSC, 278-A Hope St., Mountain View, CA 94041
Voice: 650/961-8918 or 650/969-1545
Fax: 650/961-8918
http://www.cpeo.org

Lenny Siegel wrote:
> On May 11, 2006, U.S. EPA Assistant Administrator for the Office of 
> Solid Waste and Emergency Response, Susan Parker Bodine, sent a letter 
> to Melanie A. Marty, Chair of the Children's Health Protection Advisory 
> Committee, in response to that Committee's March 8, 2006 letter 
> concerning the regulation of perchlorate. The full letter is available 
> as a 152K PDF file from
> http://yosemite.epa.gov/ochp/ochpweb.nsf/content/5112006.htm/$file/5112006.pdf. 
>
>
> Bodine's key points appear to be:
>
> 1. EPA's Preliminary Remediation Goal (PRG) of 24.5 parts per billion 
> for perchlorate is protective because it is based upon a non-adverse 
> effect.
>
> 2. The PRG is not a final cleanup level, but a "starting point for 
> site-specific goals."
>
> 3. National data on perchlorate in food are insufficient to establish a 
> relative source contribution factor for perchlorate.
>
> 4. EPA's Office of Water is evaluating, following its established 
> process, whether the agency should promulgate a Maximum Contaminant 
> Level (MCL) for perchlorate.
>
> In other words, EPA is not changing anything in response to the 
> Children's Health Committee letter.
>
> Lenny

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