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AR226-3182 DuPont-6711 TRADE SECRET Study Title | Acute Oral Toxicity Fixed Dose Method Laboratory Project ID: DuPont-6711 T est Guideline: OECD Guidelines for Testing of Chemicals Section 4: Health Effects, No. 420 (1992) Author: Carol Finlay, B.A.

M s. 2 6 - 3 2 7 7 M 1 2 6 -& 7 7 DR.U.NOACK-LABORATORIUM FR ANGEWANDTE BIOLOGIE Effects on the Development of Caenorhabditis elegans in a Water-Sediment System acc. to T r a u n s p u r g e r et al. (19 97 ) Sponsor Asahi Glass C la r ia n t Daikin In d u str ies Ltd D upont Author Gunda W inkelm ann Test Facility D r.U .N o ack-La bo ra to rium F r A n g e w a n d te B io lo g ie Kthe-Paulus-Strae 1 D-31157 Sarstedt Laboratory Prgiect ID Project-No.

- h t Z k - 3 A S if. 466 H-25767: Influence on Growth and Growth Rate o f the Green Alga Selenastrum capricornutum_____________________________ STUDY INFORMATION Substance Tested: Svhonvms/Codes: Haskell Number: 25767 AR2 Z 6 - te g p DuPont-12992 Known Impurities: None Physical Characteristics: White liquid Stability: The test substance appeared to be stable under the conditions of the study; no evidence o f instability was observed.

RECYCLED > 000455 I 05 REVIEW OF WASHINGTON WORKS C-8 DATA PERSONNEL AIR MONITORING AND BLOOD Th e r e v i e w o f b l o o d d a t a v s . c u r r e n t p e r s o n n e l a i r m o n i t o r i n g DATA MUST BE VIEWED AS A TECHNICAL STUDY WHICH DEMONSTRATES THE CORRELATION BETWEEN C-8 IN AIR, C-8 SKIN EXPOSURE, AND BLOOD LEVELS.

AR226-3640 B B1 05P-0185-2 1 Sand to Silty Sand (Alluvium) 2 Silty Sand (Alluvium) 3 Sandy Silt (Till) 4 Silty Sand (Till) 5 Gravelly Sand (Alluvium) 6 Silty Sand (Alluvium) 7 Gravelly Sand (Alluvium) 8 Silty Sand (Alluvium) 9 Peat Grain size distribution and permeability data available I Well screen 0 250 500 750 1000 Horizontal Scale (Feet) Source: Barr Engineering Co.

TSCA Document Processing Center Attn: Section 8(e)/FYI M2.Z6 - 373V August 10,2006 Page 4 of 10 Attachment 1 July 19, 2006 "Note for settling parties" from the Science Panel (1 page) Note for settling parties We have prepared some outline protocols for several interlinked research components addressing the potential health effects of exposure to C8 around the Washington Works plant.

' 3W ENVIRONMENTAL HEALTH PERSPECTIVES Private Drinking Water Wells as a Source of Exposure to PFOA in Communities Surrounding a Fluoropolymer Production Facility Kate Hoffman, Thomas F.

GRAIN SIZE DISTRIBUTION 100 95 90 85 80 75 70 . 65 60 m>- 55 O' 50 z 45 HI UCLJ 40 35 30 25 20 15 10 5 U S.

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P # te 7 I UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460 F V Z -O S o l- /3 7/ M arch 20, 2001 FYI-00-00137B a 9 6 - ,0 3 OFFICE OF PREVENTION.

GRAIN SIZE DISTRIBUTION 100 95 90 85 80 75 70 . 65 60 m>- 55 O' 50 z 45 HI UCLJ 40 35 30 25 20 15 10 5 U S.

Corporate Health Physics Corporate Occupational Medicine Corporate Product Responsibility Corporate Toxicology 3M Medical Department 3M Center, 220-2E-02 PO Box 33220 St.

fm -o o ^ i BIODEGRADATION F 7 ^J5 - TEST SUBSTANCE Identity: Perfluorooctanesulfonate, DEA salt; may also be referred to as PFOS DEA salt, FC-99, or 3M Sample No. 2. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, compd. with 2,2'-iminobis[ethanol] (1:1), CAS # 70225-14-8) Remarks: Test sample is a mixture of the test substance in water (approximately 25% test substance and 75% water).

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