BACK TO MAIN BIOCONCENTRATION (PARTITION COEFFICIENT) TEST SUBSTANCE______________________ Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The test substance is a white powder.

C8 Science Panel Website C8 Science Panel 1:c e pt o s re 08 QC '0 m s C8 Study Results Home The Science Panel 15 October 2008 Panel Members Press Community Study Sum m ary C8 Study results C8 T est Results Consent Form C8 H ealth Project Links C o n ta ct Below are listed 3 Status Reports submitted to the Wood County Court in Parkersburg West Virginia under the C8 Settlement.

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G L P 1 0 -0 1 -0 2 ; In te r im R e p o r t 2 7 - A n a ly s is o f P F B S , P F H S , a n d P F O S in G r o u n d w a t e r S a m p l e s C o l l e c t e d f r o m D e c a t u r , A L , 1 st Q u a r t e r 2 0 1 2 Study Title Analysis of Perfluorooctane Sulfonate (PFOS), Perfluorohexane Sulfonate (PFHS) and Perfluorobutane Sulfonate (PFBS) in Groundwater, Soil and Sedim ent for the 3M Decatur Phase 3 Site-Related Monitoring Program Data Requirement EPA TSC A Good Laboratory Practice Standards 40 CFR Part 792 Study Director Jaisim ha Kesari P.E., DEE W eston S olutions, Inc. 1400 W eston W ay W est Chester, PA 19380 Phone: 610-701-3761 A u th o r Susan W olf 3M Environm ental Laboratory Interim Report Completion Date Date of signing Performing Laboratory 3M Environmental Health and Safety Operations Environmental Laboratory 3M Center, Bldg 260-05-N-17 St.

GLP10-01-02; Interim Report 19 Analysis of PFBS, PFHS, and PFOS in Water Samples Off-Site BP Property - July 2011 GLP10-01-02: Interim Report 19 - Analysis of PFBS.

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PFOS: A 96-HOUR TOXICITY TEST WITH THE MARINE DIATOM (Skeletonema costatum) FINAL REPORT WILDLIFE INTERNATIONAL, LTD.

PFOS: A 96-HOUR TOXICITY TEST WITH THE FRESHWATER ALGA (Anabaenaflos-aquae) FINAL REPORT WILDLIFE INTERNATIONAL, LTD.

BACK TO MAIN WATER SOLUBILITY IN PURE WATER- SHAKE FLASK METHOD TEST SUBSTANCE________________________________ Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The test substance is a white powder.

BACK TO MAIN SOLUBILITY IN OCTANOL- SHAKE FLASK METHOD TEST SUBSTANCE______________________ Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The test substance is a white powder.

A R 1 2 C - 0 1 ^Attachments to Letter to C.

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FINAL REPORT ^ R X L6-055*J RECEIVED QPPT CBiC 2000FEB 22 AHIh3L PROTOCOL 418-008 COMBINED ORAL (GAVAGE) FERTILITY, DEVELOPMENTAL AND PERINATAL/POSTNATAL REPRODUCTION TOXICITY STUDY OF PFOS IN RATS SPONSOR'S STUDY NUMBER: 6295.9 FINAL REPORT DATE: 10 JUNE 1999 000502 PROTOCOL 418-008 COMBINED ORAL (GAVAGE) FERTILITY, DEVELOPMENTAL AND PERINATAL/POSTNATAL REPRODUCTION TOXICITY STUDY OF PFOS IN RATS SPONSOR'S STUDY NUMBER: 6295.9 TABLE OF CONTENTS SUBJECT I.

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