r > r' \2-44 Rivi/ mm ISUtnsmoiBc; E. du Pont de N em ours & C o m pan y IN COR PORATE O W il m in g t o n , D e l a w a r e 19898 POLYMER PRODUCTS DEPARTMENT EXPERIMENTAL STATION PERSONAL AND CONFIDENTIAL A.

NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 606-331-2838 513-381-2838 FAX: 513-381-6613 DAYTON, OHIO OFFICE SUITE 900 110 NORTH MAIN STREET DAYTON, OHIO 45402-1786 937-228-2838 FAX: 937-228-2816 Robert A.

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ZaceAnalytical Enclosure 2 Field Services Division M 3-A 6-. l ?

ATTACHMENT TO LETTER OF 12/05/05 3M FLUOROCHEMICAL SUBMISSION BACK TO MAIN 3M FLUOROCHEMICAL SUBMISSION TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE Click on Study Title to View Report Multiple Chemicals 1.

SRJPTT-6295.8, T-6316,4, T-6868.2, T-7071.1, T-7132.1 0T15-B 3M MEDICAL DEPARTMENT, CORPORATE TOXICOLOGY T-6295), N-ethyl perfluorooctanesulfonamido ethanol (N-EtFOSE, T-6316), N-Ethyl perfluorooctanesuifonamide (N -ItFO SA , T-6868), Perflu orooctan esu Ifonamido acetate (FOSAA, T-7071), and/or Perfluorooctanesulfonam ide (FOSA , T-7132) o f in Rats and Guinea Pigs following O ral dosing.

flRUG'OHSO PHOTODEGRADATION TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, PFO, FC116, FC-126, FC-169, or FC-143.

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REPORT Study Title ASSESSMENT OF ACUTE ORAL TOXICITY WITH T-7868 IN THE RAT (ACUTE TOXIC CLASS METHOD) Author Drs.

January 2005 Supplemental Notice of Contamination A /?

AR226-2015 CC; A.

C -8 TRENDS IN AIR AR226-2016 -- FEP Polykettle Raw Dispersion A/C R.ZIpfel rgc/11/91 39tt)0Z.f>l - + - FEP Wet Finishing Fine Powder Dryer 4- C-8 TRENDS IN AIR C-8 IN AIR (PPB) AEL - 0.56 FEP POLYKETTLE OPERATOR 1980 1981 1982 1983 1984 1985 1986 1987 ~ 0.12 0.09 0.09 0.19 0.08 0.13 0.08 FEP WET FINISHING OPERATOR 0.95 0.30 0.09 0.11 0.09 0.17 0.12 0.08 RAW DISPERSION A/C OPERATOR 1.20 0.26 0.09 0.21 0.20 0.36 0.76 0.41 FINE POWDER DRYER OPERATOR 1.40 0.56 0.15 0.06 0:10 0.78* 0.87 * 1 Sample Point Only 003546-364 - 05/05/87 - HJZ:kst t'7.9W)07f>f EID078528 * vi';" t " -=>- lo o P Oft O f $ *U) o^ o ~ o' 00 Q O. < r* o. o -O >OJoot Obbl 5 to to to ?

4r* 226-2047 Roger J Zipfel 07/27/2001 01:30 PM To: John E Crum/SE/DuPont@DuPont cc: Ta-W ei Fu/CL/DuPont@DuPont Subject Re: C-8 sampling Q John, this is very perplexing information.

TRINITY BUILDING FILE 3 - BREEZE ISC SUITE ** BUILDING BLD 0 0 191.6 5.1 10 ** BUILDING IDN Bldg184 ** BUILDING NAM Bidg184 ** BUILDING CRN 441771.4 4346765.4 ** BUILDING CRN 441771.7 4346765.1 ** BUILDING CRN 441807.6 4346771.6 ** BUILDING CRN 441818.1 4346711.4 * BUILDING CRN 441812.8 4346710.8 * BUILDING CRN 441812.5 4346715.5 '* BUILDING CRN 441799.7 4346713.2 * BUILDING CRN 441797.9 4346723.1 * BUILDING CRN 441782.7 4346720.2 '* BUILDING CRN 441772.5 4346766.3 " BUILDING BLD 0 0 200.8 6.6 18 ** BUILDING IDN Bldg208 "* BUILDING NAM Bldg208 " BUILDING CRN 441837.4 4346545.5 * BUILDING CRN 441864.2 4346550.5 ** BUILDING CRN 441865.1 4346547.0 ** BUILDING CRN 441910.7 4346554.9 BUILDING CRN 441909.5 4346560.7 ** BUILDING CRN 441966.5 4346571.5 ** BUILDING CRN 441973.2 4346535.0 ** BUILDING CRN 441889.4 4346519.5 ** BUILDING CRN 441890.8 4346509.9 ** BUILDING CRN 441872.1 4346507.0 ** BUILDING CRN 441871.0 4346516.6 ** BUILDING CRN 441857.8 4346514.3 ** BUILDING CRN 441853.7 4346537.1 ** BUILDING CRN 441874.8 4346541.7 ** BUILDING CRN 441874.2 4346543.8 ** BUILDING CRN 441838.8 4346537.6 ** BUILDING CRN 441837.7 4346545.5 ** BUILDING CRN 441837.7 4346545.5 ** BUILDING BLD 0 0 194.2 5.9 8 ** BUILDING IDN Bldg204 ** BUILDING NAM Bldg204 ** BUILDING CRN 441828.5 4346609.0 ** BUILDING CRN 441857.4 4346614.6 ** BUILDING CRN 441856.5 4346618.7 " BUILDING CRN 441864.7 4346620.1 ** BUILDING CRN 441867.9 4346604.4 ** BUILDING CRN 441830.5 4346597.1 ** BUILDING CRN 441828.5 4346609.0 ** BUILDING CRN 441828.5 4346609.0 ** BUILDING BLD 0 0 196.5 10.5 5 ** BUILDING IDN Bldg210 ** BUILDING NAM Bldg201 ** BUILDING CRN 441729.7 4346552.6 ** BUILDING CRN 441738.4 4346553.8 ** BUILDING CRN 441740.8 4346542.7 ** BUILDING CRN 441732.0 4346540.9 ** BUILDING CRN 441730.3 4346553.2 ** BUILDING BLD 0 0 196.9 9.11 11 AR226-2172 EID420100 'BUILDING IDN Bldg325a 'BUILDING NAM Bldg325a BUILDING CRN 441656.8 4346577.6 'BUILDING CRN 441678.1 4346581.1 'BU ILD IN G CRN 441682.8 4346555.7 'BU ILD IN G CRN 441678.7 4346554.8 'BU ILD IN G CRN 441677.3 4346561.5 'BU ILD IN G CRN 441666.8 4346559.7 'BU ILD IN G CRN 441665.9 4346563.3 'BU ILD IN G CRN 441661.8 4346562.7 'BU ILD IN G CRN 441660.3 4346568.2 'BU ILD IN G CRN 441658.3 4346567.6 * BUILDING CRN 441656.8 4346577.3 * BUILDING BLD 0 0 188 8.1 5 'B U ILD IN G IDN Bldg21 'B U ILD IN G NAM Bldg21 'B U ILD IN G CRN 442001.9 4346620.1 'B U ILD IN G CRN 442018.8 4346624.2 'B U ILD IN G CRN 442022.3 4346606.6 'B U ILD IN G CRN 442004.8 4346603.1 'B U ILD IN G CRN 442001.9 4346621.2 'B U ILD IN G BLD 0 0 200.5 7.5 5 'B U ILD IN G IDN Bldg6 'B U ILD IN G NAM Bldg6 BUILDING CRN 442146.1 4346522.5 BUILDING CRN 442202.2 4346530.7 BUILDING CRN 442205.7 4346512.6 BUILDING CRN 442148.5 4346503.3 BUILDING CRN 442145.0 4346521.9 BUILDING BLD 0 0 190.6 6.1 23 BUILDING IDN Bldg3 BUILDING NAM B!

AR226-2188 ,3 Debbie J Mulrooney ' 08/23/2001 09:53 A M To: cc: Subject Chris E Shoop/AE/DuPont@DuPont Question on Source Spreadsheet Chris, I noticed that on the revised spreadsheet you added a column showing the fraction of P M that is C8.