74*UA6_ I3/ 1V # &J 4-f/ March 21,2003 1301 K STREET.

/ K U & 6 - - >`2 g ' / Telomer Research Program Annual Report of A ctivities for TRP Grant to University of Toronto; Scott Mabury, PI Project years: 1 September, 2001 to 1 September, 2002.

(SlJPfc Haskell Laboratory for Health and Environmental Sciences 1090 Elkton Road Newark, DE 19714 AR226-1307-6 From: Robin C.

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6 0 P- 31 October 2003 AR226-1642 To: Mary F.

Katherine E.

-4H2ll- I7S T-6295.28 Final Report T-6295.28: Analysis of Liver Enzymes, Glycogen, and Perfluorooctane Sulfonate (PFOS) Concentration in Samples from T-6295.25: One-Generation Reproduction Study of PFOS - Mevalonic Acid/Cholesterol challenge and NOEL Investigation in Rats.

T-7132.1 FR DTI 5 A e z z b -173/ Title: Comparative Molecular Biology o f Perfluorooctanesulfonamide (FOSA, T- 7132) in Rats following four consecutive days o f dosing.

AR226-1734 Toxicological Summary PFOS Dietary Acute Mallard Study Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, CAS# 2795-39-3 Remarks: The test substance is a white powder (3M lot #217).

DuPont Legal Andrea V.

Xff tifiAa- 63z May 2000 Organization for Economic Cooperation and Development Existing Chemicals Task Force Meeting PFOS Assessment Approach in OECD The recently circulated information on PFOS and its associated derivatives raises a number of important questions regarding this chemical technology and the appropriate steps to take in light o f the decision by the major manufacturer to phase out production for most uses during the current year.

AR226-2116 Tesi Results Sample Date Range Concentratloa Range Action Level Industrial Hygiene 1/1ADO 12/3100 100% Sample Dt Sample# Duration Type Employee Name BTO: 08 TEFLON LOC: 045 BLOG. 162 ROOF-GENERAL 2/3/00 9393 360 A 5/12/00 9408 360 A 8/7/00 9611 360 A 11/13/00 9742 360 A ' Petrs Chemical C-fl/FC-143 C-8/FC-143 C-8/FC-143 C-6/FC-143 BTO : 08 TEFLON LOC; 048 B-162 OUTSIDE SMOKING AREA - 2ND LEVEL 1/6/00 3356 360 A 2/3/00 9394 360 A 3/6/00 9443 360 A- 5/12/00 9499 360 A 8/7/00 0812 360 A 11/9J0O 0724 360 A C-8/F-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-a/FC-143 BTO: 08 LOC: 101 TEFLON P/S - TFE FIELD OPERATOR (08PA) 3 34707 360 P COX, JOHN A 7/10/00 35087 360 P SKILES, JAMES S 10/1000 35395 360 P COX, JOHN A 08PA C-8/FC-143 08PA C-8/FC-143 08PA C-fi/FC-143 BTO: 06 LO C: 1Q2 TEFLON P/S - HFP FIELD OPERATOR (03PB) 2/2/00 34583 5/12/00 34880 360 P WALKER, PATRICK M 360 P MOON, GARY E 8/7/00 35134 11/9/00 3S488 360 P YOUNG.

TsstRefeults AR226-2127 file:///C|/WINDOWS/TEMP/Polymers C-8 7-24-78 thru 1-3-98 23 pages.htm Test Results Sam ple Date Range C oncentration Range A ction Level Industrial Hygiene 7/24/78 1/3/98 100% Sample D t Sam ple # D uration Type Employee Name Pars B TO : 18 TEFLON COPOLYMERS LOC: 001 FEP OVENS NORTH SIDE 12/19/79 47723 Z 1/15/80 47724 z 1/22/80 47725 z 8/8/80 47726 z C hem ical Cone U nit Percent C-8 0.0005 PPM 0.0% C-8 0.0006 PPM 0.0% C-8 0.0009 PPM 0.0% C-8 0.0095 PPM 0.0% BTO : 18 TEFLON COPOLYMERS LOC : 002 FEP OVENS SOUTH SIDE 12/19/79 47601 X 1/25/80 47602 z .

AR226-2171 ifa?

AR226-2564 Andrews Hartten 11/01/2001 03:59PMl To: weniworth.willlam @ epam ail.epa.gov cc: Subject: Update on Things Sill, A couple of things I wanted to update you on.