ORIGINAL DOCS NOT CONTAIN CBI 3 S 8 \\3 3 July 15, 2010 i- OJUL 19 fft`jM'1 09 DuPont Haskell Global Centers for Health and Environmental Sciences 1090 Elkton Road, P.O.

ORIGINAL D O E S N O T C O N TA IN C B I Taft/ Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1800 / Cincinnati, OH 45202-3957 / Tel: 513.381 2838 / Fax. 513.381 0205 / www.taftlaw.com Cincinnati / Cleveland / Columbus / Dayton / Indianapolis / Northern Kentucky / Phoenix Robert A.

3>l General Otlices 3M Center St.

E xpedited Processif R equired: I -S--u---p--e-r--v--i-s--o--r -s---I-n--it-i-a-ls-t :_____ :_ _ iI CBIC CODING SH EET DCO INITIAL: PHONEME:MAIL: CASE NO.

Relevant studies include mammals that have undergone non-acute exposure to Cape Fear PFCs and biomonitoring of workers who and their children.

Katherine E Reed, Ph.D.

3M G en eral O ffices 3M Cemer S).

3M 3M Corporate Toxicology and Regulatory Services 3M Center, Building 0220-06-E-03 St.

ORIGINAL DOES NOT CONTAIN CBI P RfCE!

r PUBLIC COPY October 30,2007 Via Federal Express Document Processing Center (Mail Code 7407M) Room 6428 Attention: 8(e) Coordinator Office of Pollution Prevention and Toxics U.S.

PUBLIC COPY May 23, 2008 RF.'

Larry R.

DuPont Haskell Global Centers for Health and Environmental Sciences 1090 Elkton Road, P.O.

89080000216 Re: TSCA 8(e) Substantial Risk Notice: Supplemental to Docket No. 8EHQ-0598-373; Sulfonate-based and Carboxylate-based Fluorochemicals To whom it may concern, 3M is submitting this notice to supplement its previous submissions on sulfonyl-based and carboxylate-based fluorochemicals.