BACK TO MAIN Study Title Microbial Metabolism (Biodegradation) of Perfluorooctane Sulfonate (PFOS) I.

BACK TO MAIN ACCUMULATION OF PERFLUOROOCTANESULFONATE AND RELATED FLUOROCHEMICALS IN MINK AND RIVER OTTERS John P.

Sponsor: 3M St.

ADDITIONAL COMMENTS OF 3M COMPANY TO THE EPA SCIENCE ADVISORY BOARD PFOA REVIEW PANEL APRIL 18, 2005 CONTACT: JOHN L.

TestResults AR226-2117 file:///C|WINDOWS/TEMP/C-8"FC143 ^er 1-.1-70 thiu 8-9-Ol.hton ^ ila 1 of 99 Test Results Sample Date Range Concentration Range Action Level Industrial Hygiene 1/1/70 8/9/01 100% Sample Dt Sample # Duration Type Employee Name Pers BTO: LOC : 08 TEFLON 100 P/S - MONOMER OPERATOR CONTROL ROOM (08PA/PB/PC) 5/10/99 33692 360 P BARROW, THOMAS L 08PH Chemical Cone Unit Percent C-8/FC-143 <0.01 MPB 1.8% BTO: 08 TEFLON LOC: 101 P/S-TFE FIELD OPERATOR (08PA) 1/30/98 27147 360 P LEWIS.

AR226-2186 11^ !

AR226-2201 ^ Debbie J Mulrooney 10/12/2001 04:00 PM To: cc: Subject: Robert F Pinchot/DEV/AE/DuPont@DuPont, Chris E Shoop/AE/DuPont@DuPont Met Data used in Modeling FYI, here is the met data for the day in question (November 12,1996).

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entreAnalyticLaalboratorieIsn,c,. 048ResearcDhrive StateCollege,PA 16801 wwwcentrelab.com hone:(814)231-8032 Fax:(814)231-1253 or(814)231-1580 AnaWcal Report Fluorochemic,@51 *Characterization of Water and Sediment Samples Port St.Lucie Resamp!

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TGoE: SMtaarpyhDeonmHinKioarkzioDmCo/wsUkSE<PSAUeSp@hEoP+nA,Koaprpte.mncoiwcS@eHpBaUmaSiAl.deuppaegnotvc.om, smythe@randorg Subject TAPStudyReports:SubmistosAiR-o22n6 8 Hazen 10, 2003 gZ 32 t3F:5 anzys7aG.ahtu,blornBoaininelinatCkaodle.

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ARRRG -- 1367 'UDR-TR-03-00044 Final Report - LaboratoryScale Thermal Degradation of Perfluoro-Octanyl Sulfonate and Related Substances June 2003 002039 Final Report Laboratory-Scale Thermal Degradation of Perfluoro-Octanyl Sulfonate and Related Precursors "Thisreportcoversthe efforts perf byo thr eUnm iveersidtyofDaytonResearch Institute (UDR), EnviSrcieoncenanmdEneginneeritngGaroulp, Dayton,OH 454690132,duringtheperiodfromMarch2001toDecember2002.Thework wasconducted under aLetterofAgreementdatedMarch20,2001.

Telomer Research Program AR226-1421 Report Title: 1-Decanol, 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluoroAlga, Growth Inhibition Test with Scenedesmus subspicatus, 72h, Limit Test with the Water Accommodated Fraction (WAF) Author(s): Dirk Scheerbaum RECEIVED OPPT NCIC 2003 July 18 12:00PM Contractor: Dr.