CAS Number 754-91-6 3M Company M 6_T77 Voluntary Use and Exposure Information Profile Perfluorooctane sulfonamide I.

A 2-26 _ l06Lf Handling of FLUOROPOLYMER RESINS 3rd Edition Published by the Fluoropolymers Division of The Society of the Plastics Industry, Inc.

Northwest Bioanalytical Study No.

AM%-0S3& TOXICITY TO AQUATIC PLANTS (E.G., ALGAE) TEST SUBSTANCE Identity: Perfluorooctylsulfonate, didecyldimethylammonium salt; may also be referred to as Fluoroalkyl ammonium derivative. [1Decaminium, N-decyl-N,N-dimethyl-, salt with 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-1 octanesulfonic acid (1:1), CAS # 251099-16-8] Remarks: The 3M production lot number was Lot 1.

SIERRA BIOMEDICAL A CHARLES RIVER COMPANY 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 all high-dose animals, selected control animals, and the two animals that had an unscheduled sacrifice (105721 and I05724) was performed.

AR226-2092 IndustrDiaaltHa ygiene AR226-2092 TestResults Sample Date Range Concentration Range Action Level Industrial Hygiene 1/1199 12/31/99 100% Sample Dt Sample# Duration Type Employee Name BTO: 08 TEFLON LOG: Q45 BLDG. 162ROOF-GENERAL m m goss 255 A 8/17/99 916S 360 A 8/17/99 9168 360 A 8/10/99 9167 360 A 11/399 9267 300 A Pete Chemical C-a/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-3/FC-I43 BTO: 08 TEFLON LOC: 048 B-162 OUTSIDE SMOKING AREA - 2ND LEVEL 1/25/99 8581 390 A 4/12/99 8888 360 A 4/14/59 8692 360 A 7/13/99 9104 360 A 11/3/99 9268 380 A 12/15/99 9318 360 A C-8/FC-143 C-a/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-6/FC-143 BTO: 08 TEFLON LOC !

AR226-2248 _ _ _ _ _ ______________________________________ Name_____________________________________ Thompson Collins Watkins Smith Concentrations are from the deposition modeling runs, and include wet and dry depletion due to deposition EDD0017650 C o o rd in a te s Particulate D e p o s itio n (qim 2/vr) Vapor D ep o sitio n (O/m^vr) Total D ep o sitio n ( q ta i2/v r ) 445213E 4346090N 443141E 4345753N 443223E 4345847N 443254E 4345888N 0,00098 0.00179 0.00193 0.00186 0.00008 0.00021 0.00019 0.00018 0.00106 0.00200 0.00212 0.00204 Particulate C o n c e n tra tio n (ug/m 3) Vapor C o n c e n tra tio n fuq/m 3) Total C o n c e n tra tio n (ug/m 3) 0.02000 0.03217 0.05217 0.03752 0.05854 0.09606 0.03555 0.05635 0.09360 0.03554 0.05587 0.03141 EDD0017 651

AR226-2375 *13Mao| ziJ L i *?

AR226-2431 INTEROFFICE MEMORANDUM Datei Fron; Deptr Tel No; 05-AUQ-193 08:30aW EDT Roger J- Zipfel ZIPFEL PPD-SPD 304-863-2567 TO: 2 addressees CC: 5. addressees Subject: C-8 in site drinking water The attached communication puts some perspective on the recent results of C-8 in our site's drinking water.

Ohio River Public Water Systems Well Field Results Range in ug/L From Upriver To Downriver w/ Respect To Facility: - Belpre (3 m. up): NQ (<.05) to .107 - Blenls.

AR226-2545 WVD045875291 DUPONT WASHINGTON WORKS RESPONSE TO EPA RFI WORK PLAN NOTICE QF DEFICIENCY (KOD) COMMENTS An NOD letter dated 1/15/98 concerning the 9/24/97 DuPont Washington Works RFI Workplan, was received from Region III EPA on 1/20/98.

AR226-2780 FOR DP PONT OSE ONLY Copies Co: E.

AR226-2788 C-8 ALTERNATES: MATERNAL AND DEVELOPMENTAL TOXICITY IN THE RAT (PRELIMINARY STUDY, BY GAVAGE) HASKELL LABORATORY REPORT NUMBER 441-84 Copies Company Sanitized.

ENVIRONMENTAL PHYSICAL/CHEMICAL, FATE, EFFECTS AND MONITORING STUDIES FOSA BACK TO COMPOUNDS S TU D Y TITLE LABORATORY OR AUTHOR DATE COMPLETED TYPE Environmental Fate and Transport H ydrolysis Reactions of P erfluorooctanesulfonam ide (FOSA) 3M Environm ental Lab The 18-Day A erobic Biodegradation Study of Perfluorooctanesulfonyl-Based C hem istries _______________________________________________________________ 1 Pace A nalytical Services, Inc. 04/03/01 2/20/01 R obust sum m ary, final report R obust sum m ary, final report

ENVIRONMENTAL PHYSICAL/CHEMICAL, FATE, EFFECTS AND MONITORING STUDIES COMBUSTION BACK TO COMPOUNDS STUDY TITLE LABORATORY OR DATE AUTHOR COMPLETED TYPE Environmental Fate and Transport Executive Summary Flurochemical Decompostion Processes.