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WASHINGTON, D C 2046C
KPA-CASAC-07-007
THE ADMINISTRATOR
Chair, Clean Air Scientific Advisory Conimillee
Science Advisory Hoard
I* S l:.\i\ironnieniul Praleelmji Aj»ene>
LM)U Pennsylvania Avenue. N W , Mail Code I4UOF
i, IXC. :u460-u(K)j
Dear 1ft
\,
! hauk you for \viilins> to provide me with the 11 S huviroumental Protection As.'.encN
Seienee Advisoiy Honnt ("lean Air Scientilic Atl\ isory Coinnuttet-1 eaii Review Panel"1,
reeoniinendatious reiiardins: its peer review oHhe dratt /• W f/uinuit E\J>OSIUT andlli'\tlih Risk
l.\-n>.\MHt'nt.\ /"/- A"t'/('<•/<' < 'arc Situ/it's ( Draft ! end I:.\posure and Risk Assessuient Report, July
'I tic P.incTs advice ;md recuinineiuiations havv been cvtrctncly helpful to me and my
sialf in oui rcvicu uf the National Ambient Air Quality Standards loi lead. We considered your
udvice .Jiul leruiinijcadatioh:; LtuvfulK as \ve eoinplelct) uur work on the final 1 eud l-lxpositrc
and Risk A^sessnieiil Repoil and slu* linal Hcvu'w of the ,\\itn >n<.il Amhtt'ni Air (Juahtv Standards
lor I t.'ih/ i'oficr .'L\vi^>vH(J/i/ af'St it'«///!< iind Technical lnje materials We value CASAC "-, jntrticipation and «id\ ice highly
throughout tisu process. I hank you tor your comniilincn! and youi sen ice tu the Agency
/\
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J/ihnsoii
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