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i Northwest Bioanalytical Study No.

AR226-2527 REMOVING THE 1.4X FACTOR FROM EXPERIMENTAL STATION C-3 IN WATER RESULTS, HERE IS A COMPARISON OF THE MOST RECENT SAMPLES: C-8 SAMPLE EXP ST (PPB) CH2MHILL fPPB) CH2M C9(%) CH2M Cll(%) LAB BLANK --- < 0.1 82 74 TW-27 DUPLICATE 4.7 4.3 2.5 3.2 63 45 75 46 TW-M4 DUPLICATE 1.3 1.7 0.7 0.6 87 72 74 45 TW-331 DUPLICATE 1.0 1.4 0.6 76 49 0.6 85 61 TW-33 DUPLICATE 94 100 75 46 78 34 73 37 NOTE: C9 AND Cll ARE CH2MHILL SURROGATES WITH % RECOVERY SHOW4.

m AR226-2749 Copies to Haskell U b r ; i J Uf ^ ,' 02 c S r " y tor Toxicology r * an dh" I n du s t ri a l Medicine __ _______________ HASKELL LABORATORY REPORT NO. 160-69 Material Tested: Ammonium Perfluoro'octanoate Haskell No.: Other Codes ; # v l . (1) PeVilbls eenerat" "ere "sed -- alnm pertluorooctan.af erosols.

AR226-2822 Company Sanitized.

AR226-3103 jm m ^ -- r J Huntingdon lili ' : I CONFIDENTIAL DPT 435/984104 irW TO^.lnrPff il , IN VITRO MAMMALIAN CHROMOSOME ABERRATION TEST IN HUMAN LYMPHOCYTES '' Sponsor DuPont Speciality Chemicals, Jackson Laboratory, Chambers Works, Deepwater, N J08023, USA.

STLS E V E R N TRENI STL Chicago 2417 Bond Street University Park, It 60466 Tel: 70B 5 3 4 5 2 0 0 Fax: 7 0 8 5 3 4 5 2 1 1 www.

- 0664- FOSA or PFOSA Ongoing - / 000502 3M MEDICAL DEPARTMENT, CORPORATE TOXICOLOGY Protocol for Study 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.

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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

fik Z 2 . 6 - 0 S 7 o BIODEGRADATION (BOD/COD) TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-780B. (1Octanesulfonic acid) (CAS # 2795-39-3).

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AK - \tj-8l TSCA NCIC Notification Form for CBI Documents Docket Number: 7 3 7 __________ __ Document Control Number: 7 7 7 Document Date: 7 3" - ( - 7>____________________________ Document Type: b o c t F ___________________ 5c_t 0--aa5mo0 -nm x^ocron oo mo (TChBe Id) o u c n u d me er nt Se re ct fer io n e1n4coefd above the To is cl xic S aim ed ubsta a n s c c o nfiden tial es Control A bu ct s(TinSeCsAs )in.

AR226-2413 ,,,,28/91 07:13 O M !