ATTACHMENT TO LETTER OF 2/9/05 3M FLUOROCHEMICAL SUBMISSION BACK TO MAIN 3M FLUOROCHEMICAL SUBMISSION TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE PFOA Perfluorooctanoic Acid 1.

BACK TO MAIN 3M FLUOROCHEMICAL SUBMISSION TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE August 2005 Click on Study Title to View Report August 12, 2005 Analytical Report, "Initial Quantitative Screening of Commercial Lots of Human Se rum Obtained in 2004 for Endogenous Fluorochemicals Using Protein Precipitation and Liquid Chromatography/Tandem Mass Spectrometry," 3M Environmental Laboratory, Project No.

SIERRA BIOM EDICAL A CHARLES RIVER CO M PAN Y PATHOLOGY PEER REVIEW REPORT 26-WEEK CAPSULE TOXICITY STUDY WITH AMMONIUM PERFLUOROOCTANOATE (APFO) IN CYNOMOLGUS MONKEYS Covance Study Number 6329-231 OBJECTIVE A microscopic peer review of the all tissues from ail high-dose animals, selected control animals, and the two animals that had an unscheduled sacrifice (105721 and 105724) was performed.

C orporate O ccupational M edicine 3M Center, Building 220-3W-05 St.

ARJ%-O5oo ACUTE TOXICITY TO FISH 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.

3M Specialty Materials p - 'f f May 30, 2000 3M Center F a r - o b o o - /St.

^ > 77 > 3 -7 - Chemicals Company, ASAHl GLASS CO., LTD.

STUDY TITLE Extraction o f Potassium Perfluorooctanesulfonate from Quail Serum and Quail Liver for Analysis Using HPLC-Electrospray/Mass Spectrometry DATA REQUIREM ENTS Analytical Method Requirements STUDY DIRECTO R Sean Gallagher STUDY COM PLETED ON September 06, 2001 PERFO RM ING LABO RATO RY / TESTIN G FA C ILITY Centre Analytical Laboratories, Inc.

Document Control Office Office of Pollution Prevention and Toxics Page 3 8 January 2004 AR226-1883 ATTACHMENT Analytical Report West Virginia Department o f Environmental Protection Analysis o f Perfluorooctanoic Acid in Fish Samples Exygen Report No.

A R 2 2 6 -1 892 81 PP EPA -DuPont Telomers Degradation Technical Meeting 9 AM - 4 PM 15 December 2004 Washington, D.

AR226-2064 WASHINGTON WORKS INDUSTRIAL HYGIENE REPORT FROM 1-Jan-1988 TO 31-Oct-199l 31-Oct-1991 Page 1 AREA; FLUOROCARBONS - COPOLYMERS CHEMICAL SAMPLE LOCATION * 5CONTROL C-S/FC-143 216 PERSONAL SAMPLE-WET FINISHING * DATE; 1i-Apl-- 19BB NOTEBOOK; 3 1 2 4 1 ,P1ES EMPLOYEE #04512 DURATION; 0390 CONCs 0.116 MPB PERS CODE; SAMPLE TYPE; P PERCENTAGE; 21% C-B/FC-143 216 PERSONAL SAMPLE-WET FINISHING *8 DATE; IB-Apt-- 1988 NOTEBOOK; 31241,P128 EMPLOYEE #04304 DURATION; 0660 CONG; 0.096 MPB PERS CODE; SAMPLE TYPE;P PERCENTAGE; 17% C-B/FC-143 216 PERSONAL SAMPLE-WET FINISHING *i DATE; 3-May-1988 NOTEBOOK; 31241,PI32 EMPLOYEE #04538 DURATION; 0660 CONC; <0.03 MPB PERS CODE; SAMPLE TYPE;P PERCENTAGE; 5% C-8/FC-143 216 PERSONAL SAMPLE-WET FINISHING *: DATE; 22-Jun-- 1908 NOTEBOOK; 31241,P139 EMPLOYEE #04445 DURATION; 0660 CONC; <0.03MPB ' PERS CODE; SAMPLE TYPE;P PERCENTAGE; 5% C-B/FC-143 216 PERSONAL SAMPLE-WET FINISHING DATE; e-Aug-1938 NOTEBOOK; 31241,P149 EMPLOYEE #04512 DURATION: 0660 CONC; 0.12 MPB PERS CODE; SAMPLE TYPE;P PERCENTAGE; 21% C-8/FC-143 216 PERSONAL SAMPLE-WET FINISHING *; DATE: 17-Apr-- 1991 NOTEBOOK: 53235,P056 EMPLOYEE #04304 DURATION: 480 CONC; 0.049 MPB PERS CODE; 1SPC SAMPLE TYPE: P PERCENTAGE; 9% 216 PERSONAL SAMPLE-WET FINISHING *: DATE; 25-Apt-- 1991 NOTEBOOK; 53235,P056 EMPLOYEE #04445 DURATION; 480 CONC; <0.03 MPB PERS CODE; 18PC SAMPLE TYPE; P PERCENTAGE; 5% C-8/FC-J.43 216 PERSONAL SAMPLE-WET FINISHING *s DATE: 6-Jun-- 1991 NOTEBOOK: 53235,P059 EMPLOYEE #04512 DURATION: 480 CONCs <.03 MPB PERS CODE; PC SAMPLE TYPE: P PERCENTAGE; 5% C-S/FC-143 216 PERSONAL SAMPLE-WET FINISHING DATE: 1i-Jun-1991 NOTEBOOK: 53235,P059 EMPLOYEE #04304 DURATION: 480 CONC: .235 MPB PERS CODE; P C SAMPLE TYPE; P PERCENTAGE: 42% C-S/FC-143 216 PERSONAL SAMPLE-WET FINISHING DATE; 13-Jun-1991 NOTEBOOK: 53235,P060 EMPLOYEE #04304 DURATIONS 480 CONCs .250 MPB PERS CODE; PC SAMPLE TYPE; P PERCENTAGE; 45% AJP002131 EXD079767 WASHINGTON WORKS INDUSTRIAL HYGIENE REPORT FROM 1-Jan-1988 TO 31~0et-1991 31--Oct-1991 Page 8 AREA!

AR226-2080 ROGER, HERE IS THE IN FORMATION ON THE C-8 SAMPLING DONE IN FINE POWDER SINCE JANUARY 199A.

* AR226-2097 Sample Date Range Concentration Range Action Level Industrial Hygiene m1/1 12/31/97 100% ' Sample Dt Sample# Duration Type Employe* Name STO: 07 TECHNICAL LOG: 2S2 BLDG.3 -GENERAL 6/2S/07 6890 390 A Pern Chemical C-8/FC-143 BTO: 08 LOG: 0 TEFLON BLDG. 162ROOF-GENERAL 7/9/97 7137 362 A 7/9/97 7138 362 A 7/21/97 7130 370 A 7/21/97 7219 371 A 7/21/97 7225 368 A 7/22/97 7 1 370 A 7/22/97 7220 374 A 7/22/97 7226 375 A 7/22/97 7232 384 A 7/23/97 7141 396 A 7/23/97 7221 400 A 7/23/97 7227 7123197 7233 374 A 391 A 7/24/97 7142 362 A 7/24/97 7222 7124197 7228 7124/97 7234 361 A 338 A 366 A 7/2397 7223 354 A 7/2397 7229 351 A 7/2397 7235 351 A 7/29/97 7230 376 A 8/397 7224 378 A 8/397 7231 371 A 8/5/97 7236 370 A C-8/FC-143 C-8/FC-143 C-6/FC-143 08/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C45/FC-143 C-8/FC-143 C-8/FC-143 C-8/F-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-B/FC-143 08/FC-143 C-8/FC-143 GSA-0-143 C-8/FC-143 C-8/FC-143 C-B/FC-143 C-8/FC-143 C-8/FC-143 BTO : 08 TEFLON LOC: 048 B-162 OUTSIDE SMOKING AREA - 2ND LEVEL 7/9/97 7143 382 A C-8/FC-143 Tuesday, May23,20001:16:50 PM Cone Unit Percent 0.08 MPB 89% 0.1 MPB 0.13 MPB 0.15 MPB 0.113 MPB 0.26 MPB 0.07 MPB 0.17 MPB 121 MPB 019 MPB 0.11 MPB 0.16 MPB 1.08 MPB 0.51 MPB 0.14 MPB 0.39 MPB 213 MPB 096 MPB 034 MPB 0.69 MPB 2 9 MPB 217 MPB 007 MPB 019 MPB 0.3 MPB 17/9% 23.2% 268% 202% 46.4% 125% 30.4% 2161%" 339% 19.6% 28.6% 192.9%" 91.1% 25/0% 69.6% 380.4% " 171.4% " 60.7% 1232% " 517.9% " 387.5% " 125% 33.9% 53.6% 043 MPB 768% Page 1 of 12 AJPQ00462 E ID 072868 SampleDt Sample# Duration Type Employee Name 7/10197 7144 7/11/97 7145 7/21/97 7146 7/22/97 7147 7/23/97 7148 7/24/97 7149 7/25/97 7150 8/4/97 7151 8/7/97 7152 387 A 370 A 366 A 377 A 390 A 352 A 351 A 354 A 367 A Per Chemical C-6/FC-143 C-8/FC443 ' C-8/FC-143 C-8/FC-143 C-8/PC-143 C-8/FC-143 C-6/FC-143 C-8/FC-143 C-fl/FC-143 BTO : 08 TEFLON PISLOC 100 - MONOMER OPERATOR CONTROL ROOM (08PA/P8/PC) 7/21/97 7207 372 A C-8/FC-143 7/22/97 7208 351 A C-S/FC-143 7/23/97 7209 398 A C-8/FC-143 7/24/97 7210 7/25/97 7211 352 A 355 A C-8/FC-143 C-8/FC-143 7/28/97 7212 3375 A C-8/FC-143 8/4/97 7213 356 A C-8/FC-143 8/5/97 7214 376 A C-8/FC-143 8/7/97 7215 367 A C3/FC-143 8/8/97 7216 307 A C-8/FC-143 8/12/97 7217 458 A C-a/FC-143 8/13/07 7218 335 A C-8/FC-143 BTO: 06 TEFLON LOG: 113 P/S - SHIFT MECHANIC (58MD) 3/13/97 25282 390 P 6/25/97 25793 370 P 10/21/97 26712 360 P 55MD C-8/FC-143 58MD C-8/FC-143 58MD C3/PC-143 BTO: OS TEFLON LQC: 708 P/S - FINE POWDER PACKOUT (08PJ) 6/24/97 25792 360 P 10/6/97 26426 390 P HEADLEY, ANNE MARIE 08PJ C-8/FC-143 08PJ C-8/FC-143 BTO: 06 TEFLON LOG: 710 FP&D AUTOCLAVE CONTROL ROOM 7/9/97 8862 363 A 7/10/97 8863 388 A Tuesday.

AR226-2178 Chris E Shoop 08/16/2001 03:27 PM To: Debbie J Muirooney/AE/DuPont@DuPont cc: Subject: Building Heights, etc.

AR226-2267 Thomas V Robertson 03/28/2002 03:16 PM To: Catherine A Barton/AE/DuPont@ DuPont cc: Robert L Dunn/AE/DuPont@DuPont, Wayne C Walpole/ASDuPont DuPont, Timothy S Bingman/AE/DuPorrt DuPont, Kathy A Kowalski/AE/DuPont@DuPont Subject: Plastics Survey As w e discussed, to furth er your efforts in addressing C8 for the C ircleville Site, the attached memo contains a survey questionnaire com pleted by DuPont Spruance regards our Teflon* fiber production at Spruance.