Memo SR To: Via: From: Subject: _ John Stine, Environment] Health Division Director lige PLaamreylaGuSsht,ibEan,viHreoanletmhenRtiaslk SAusrsveesislmlaenncteUannidt ASsuspeesrsmveinstoSre,cftio+n Managerfauf A.pl Helen Gooden, Health Risk Assssme Un sf1f Hou Health Based Values for Perfluorooctanoic acid (PFOA) ATian re "PFOA be lowered to 0.5 ug/L (ppb).

@ K Tserwom.a JGiesy@aol.com 07/19/2007 09:47 PM Art opt, ft A great deal of speculation.

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ma DEPARTMENT ENVIRONMOEFNTHALEASLURTVHEILLANCE AND ASSESSMENT memo one May17,2007 May 17, 20:t7 TO: JJaammeess KKeellllyy,, MMaannaaggeerr,, EEnnvviirroonnmmeen:nttaali AAsssseessssmmeenntt aanndd SSuurrvveeiillllaannccee SSeeccttiioonn wa Sarah Jon, Supervisor, Health is Assesment Unit | CA~b Sarah Johnson, Supervisor., Health Risk Assessment Unit FROM: Nancy RiclMieatth Risk Assessment Unit | Nancy Ric~ealth Risk Assessment Unit SUBJECT: Health Based Values for Perfluorooctana sulfonate | SUBJECT: Hea~th-gased Values for Perf!

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