DEQ-CFW_00004122

From: Brower, Connie pCONN|E.BROVVE0
Sent: 4/28/20108:39:37PN1
To: Moore, Sandra [/O=NCMAIL/OU=EXCHANG[ADMINISTRATIVE GROUP
(FYD|BOHFI]3PDLT)/CN=REOP|ENT3/CN=3ANDRA.K8OOKE];Manning, Jeff [JEFF.K8ANN|NG];Clark, Alan
[/o=NCMAIL/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=Alan.Clark]; Remington,
Nikki [/O=NCK8A|L/OU=EXCHANGEADMINISTRATIVE GROUP
(FYD|8OHFZ33PDO)/CN=REOP|ENT3/CN=Nikkirem ington]
CC: Bush, Ted [/o=NCK8A|L/ou=ExchanXeAdministrative Group (FYD|8OHFZ3SPDU)/cn=Redpients/cn=tedbush]
Subject: PFOA3A8discussions
On Sandra's behalf, Nikki and I listened in on the 15 01h meeting of the Science Advisory Board on Air Toxics.
Asyou are aware they have been discussing PFOA,per DENRDWQ�srequest, for almost JY2years.Discussion continued
onanumber ofPFOAresearch papers/posters byB\8board members. The studies included effects tomammary gland
tissues (stimulation of growth and development and inhibition of growth and development at the same doses! Very
interesting!), blood serum level studies, developmental studies, half-life studies and clarification of half-life previous
assumptions. Many of the members were not convinced that these additional studies were relevant. However, a few
SAB members and the chairperson (Dr. Thomas Starr) will schedule a few more teleconferences with the authors of
threepapers/posters.
The good news isthat the SAB,today, has agreed topost their draft risk assessment and conclusions mnthe web and
accept public comments during o3Oday comment period! This draft recommendation could, eventually, be used to
establish orevised /8&4[urgroundwater standard. {insert clapping noise herei>Noting that additional teleconferences
are planned (see above), no estimated date of web publication of the risk assessment of PFOA was mentioned, and the
8ABagreed that the findings from these teleconferences would be shared with the full SA8 next month. The board made
a few minor changes to the risk assessment , but the final calculations appear to remain as a range of numbers. (Und|
w/esee the official draft — please donot cite orquote, FYI only the range is~1—~Juo/L)
Goal for the next meeting is to discuss these follow-up conversations. We will keep you all posted auto the progress of
this evaluation.
Connie Browe.r
8tateWater Quality Standaods[oordinator
Division nfWater Quality
NCDppartmentofEnvironment and Natural 8esnu,ces
Archdale Building, Room 711J
512NSAL(S8UKYST,RALBGHNC27684-1170
919.807,6416
Please note:
E-mail correspondence to and from this address may besubject 1uthe, North Carolina Public Records, Law and may be disclosed to
third parties.
OEQ-CFVV_00004122