if VsSb- V-. * 4 P R O l^ t4sa>_ M f.lt UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D C. 20460 DEC - 9 2002 OFFICE OF PREVENTION; PESTICIDES AND TOXIC SUBSTANCES Dear Interested Party: eMMdo2a7xnet50hoacfd0pierlnn3uicredme,hdrmadfaeayl,1nAadgu,1lndiootuD,nutrpwsag2foeerca,0acoshcv0ale.mtkeos2muTdlyu)ruwh.blelpmegeTesloaleruefhlrtai,l9eenafisc,omssaefo2nlitunpnfh0arsitoaue0tnreerllo2dtesarl(uuols(aPre6plfneFade7pqtnAehleueFeleixxSiemnRrscpc)etelteeoscu7rcrnsohds2mhutnueea8eremibsle5mcdmp4fiuiicrcr)acsioo.oasteameplpsTslsisoyh,otitosnaiwnhoesfpesfdhotfreetdifiorhrmcneuadehDafliuliescfpenciroicugpienuntenbuailcdmoeilblhfuinlisSbbecichmseoeitagoehcrfnindroec3"tidmmas1ifnnlii,eesaegc2watnsansh0runioel0efuftilfi2easeFfcNrcee.layetectnundhwttfiroeiovenstrUr,eieaycowasleoenveRan(eiurRaSeJsotg(Naeui6ofin"lUs7entutshNeaF(phorSr)eRysyNocedfino8r1Ufa,ri1ucR0aaln1)ilcly4oys,,n tpeeEaschuoasnanetrbrpdvaltmiNiibieeeerlsnoirosisstnnposseEh-mihufrCeoiabgttdenohshmhnsenoeettsistflatpdheietlodeacorfPdoedtrcrttnourkoihloetcageniitsutshateiecmlsoncrucuutIudeionbltmoonemfmtncmtohbskmirAeetamentrekertgon,auidOetnttOlnisegaPtoi.cPvmPmnpyAaPTraeiCTowllk-llac2ye-ieob2ne0nbclfe0g0teosedt02ihmtriet2h-neeli0-maesgn0a0tec,e0t4ttwhcncr4w3oaoete3.swnnmr.ETeoiwbYmcPhnmea.eAoeeltafunlhpdoydDteaoucset.

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.

3M ENVIRONMENTAL LABORATORY REPORT NO.

INTERIM REPORT # 8 - Analysis of Sediment Samples STUDY TITLE Analysis of Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), and Perfluorooctanesulfonate (PFOS) in Water, Soil, Sediment, Fish, Clams, Vegetation, Small Mammal Liver and Small Mammal Serum Using LC/MS/MS for the 3M Decatur Monitoring Program DATA REQUIREMENTS EPA TSCA Good Laboratory Practice Standards 40 CFR 792 STUDY DIRECTOR Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 ' Phone: 610-701-3761 INTERIM REPORT COMPLETION DATE 07/13/06 PERFORMING LABORATORY Exygen Research 3058 Research Drive State College, PA 16801 Phone: 814-272-1039 STUDY SPONSOR 3M Company 3M Building 0236-01-B-10 St.

310 Bank Street Decatur, Alabama 35601 256.353.2910 tele 256.353.3944 fax www.TTyNC.com geotechnical analytical * materials * en v ir o n m e n t a l Decatur.

ft^ - 00,0 TRANSPORT BETWEEN ENVIRONMENTAL COMPARTMENTS (FUGACITY) TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic add, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: NA METHOD Test (test type): Fugacity Modeling Method: Level I, II, and III EQC Computer Modeling Year completed: 1999 Remarks field for Test Conditions: Modeling conducted by Don Mackay of D.

ACUTE TOXICITY TO FISH - /t / iw a f i-0111 TEST SUBSTANCE_______________________________________________ Identity: Perfluorooctanesulfonate, Lithium salt; may also be referred to as PFOS Li salt, FC-94, or FC-94-X. (1-Octanesulfonlc acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, lithium salt, CAS # 29457-72-5) Remarks: Test sample was taken from 3M production lot #1.

Ame-oai TOXICITY TO AQUATIC PLANTS (E.G., ALGAE) TEST SUBSTANCE____________________ Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95 or as part of the mixed product FM-3820 (see Remarks). (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 sample is FM-3820, a mixture of the test substance in diethylene glycol butyl ether and water (approximately 24-28% test substance in diethylene glycol butyl ether and water).

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/1R126-OK8 ATTACHMENT TO LETTER TO C.

-f y T -o r o o . n i l Attachments to Letter to C.

Experiment No.: Conducted At: Dates Conducted: Conducted By: Reviewed By: Acute Ocular Irritation Test with T-3493 in Albino Rabbits /Ume-ojp 0884EB0008 Safety Evaluation Laboratory Riker Laboratories, Inc.

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ENVIRONMENTAL PHYSICAL/CHEMICAL, FATE, EFFECTS AND MONITORING STUDIES DEA Salt of Perfluoro(ethylcyclohexyl) Sulfonate backtocompounds S TU D Y TITLE Physical/Chemical Properties CS-2070/CS-2151 Solubility LABORATORY OR AUTHOR DATE COMPLETED TYPE 3M C om m ercial C hem icals laboratory 08/03/81 Robust Sum mary, Letter Report O ctanol/W ater Distribution C oefficient of C S-2070 Estim ation of W ater S olubility of FC-90 D eterm ination of Melting Point of C S-2070 Environmental Fate and Transport 3M C om m ercial C hem icals laboratory 3M E nvironm ental lab 3M E nvironm ental lab Biosorption of CS-2151 (C S-2070) 3M E nvironm ental lab C hem ical Oxygen Dem and of CS-2151 and Biodegradation of CS-2151 (CS2070) 3M E nvironm ental lab 08/03/81 08/24/82 07/29/81 Robust Sum mary, Letter Report Robust Summary, C alculations Robust Sum mary, Letter Report 08/25/81 08/31/81 Robust Summary, Technical Report Sum m aries Robust Summary, Technical Report ENVIRONMENTAL PHYSICAL/CHEMICAL, FATE, EFFECTS AND MONITORING STUDIES DEA Salt of Perfluoro(ethylcyclohexyl) Sulfonate S TU D Y TITLE LABORATORY OR AUTHOR DATE COMPLETED Ecotoxicity Elements TYPE A quatic Toxicity Testing: C S-2151, Lot 3 (LR 6260S ) 3M E nvironm ental lab 11/19/80 Robust Sum m ary, Techni cal Report Sum m ary Daphnid Bioassay: CS-2151, Lot 3 (LR -6457S) 3M E nvironm ental lab 02/05/81 Robust Sum m ary, Techni cal Report Sum m ary A cute Effect of CS-2151 on M icrobial Respiration 3M E nvironm ental lab 08/24/81 Robust Sum m ary, Techni cal Report Sum m ary