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Northwest Bioanalytical Study No.

J aed 2 > 4 Pr -- ~ -) ou J) = TE a fd = Lg J ~~ ; PERFLUOROOCTANESULFONYL FLUORIDE (POS; T-7661.4) TOXICITY STUDY BY INHALATION ADMINISTRATION TO CD RATS FOR 13 WEEKS FOLLOWED BY A 4 WEEK RECOVERY PERIOD Volume 2 MIN 3131023622 PERFLUOROOCTANESULFONYL FLUORIDE (POSF: T-7661.4) TOXICITY STUDY BY INHALATION ADMINISTRATION TO CD RATS FOR 13 WEEKS FOLLOWED BY A 4 WEEK RECOVERY PERIOD Volume 2 Sponsor 3M Center, B3uMilCdoirnpgo2ra0t2e6T-o0x2ic,ology, St Pau, MN 551333220, USA.

AR26-15/ INDEX TO TSCA SECTION 8(e) DOCKET SUBMISSION BY 3M COMPANY (AUGUST 17, 2004) L nor stupies A.

Toxicological Summary PFOS Dietary Chronic Definitive Reproductive Study: Northern Bobwhite Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 1-Octanesulfonic acid, 1,1,2,2,3,3,4.4,5,5.6.6,7.7,8.8.8-heptadecafluoro, potassium salt.

STUDY TITLE Extraction of Potassium Analysis Perfluorooctanesulfonaie from Red Blood Cells Using HPLC-Electrospray/Mass Spectrometry and Serum for DATA REQUIREMENTS Analytical Method Requirements STUDY DIRECTOR Sean Gallagher ANALYTICAL REPORT DATE June 2, 2003 PERFORMING LABORATORY / TESTING FACILITY Exygen Research 3058 Research Drive State College, PA 16801 Phone: 814-272-1030 STUDY SPONSOR 3M Environmental Technology and Safety Services Building 23E-09 PO Box 33331 St Paul, MN 55133-3331 PROJECT Exygen Protocol Number: 01P-023-066 Exygen Study Number: 023.066 Total Pages: 98 C0120 Exygen Sudy No. 023.066 GOODLABORATORYPRACTICECOMPLIANCE STATEMENT EPexryfgleunorooctaSnuedsyulfonNautembferrom Re0d23.B0l6o6o,d Celclnsiaendd Ser"uBmxtfuocrtiAonnalysiosfUsinPgotHaPssLiCu:m BSalfeecttyroSseprrvaiyc/eMsa,sswaSspepcetrrfoomremterdy."

AR226-1994 k..

AR226-2086 R^ob^er^t F^Pm^iih^Ot^M^/^20^/9^9j^M^:g^IA?

AR226-2107 --,-^-.y., ,^,^^p^^^ Test Results ;3'3^13S^v^fTn^^ftW:E^5i^a%=3^<'~^^5^'^''i"^^^TOKi^5^aA^--^'^^^^ Industrial Hygiene Saniple Date Range 1/1/80 1201/80 Coneefltratlon Range Action Level 100% SampteDt Sample Durado iType fariptoyee Name BTOi 07 LOC: 406 TCGHNICAL TF&-FEP-MELTINIDEXER-01'1 BENCH 10/23/80 57333 Z 10/2B/80 57334 z 10(31/80 57335 z para chemical fr C-8 08 BTOS 08 LOC; 701 TEFLON FINE POWDER DRYER-EAST SIDE #2 1201/80 62876 2 C-8 .

AR226-2122 file:///C|/WlNDOWS/TEMP/C-8-FC-143 SP 9-2.81 thru 3-8-92.h<m Test Results Sample Date Range Concentration Range Action Level Industrial Hygiene 9/2/81 3/8/92 100% Sample Ot Sample* Duration Type Employee Name Pers BTO: tOC: 08 TEFLON 704 A/S-FINE POWDER C-8 WEIGH HOOD 4/29/87 34976 331 S Chemical Cone Unit Percent C-8/FC-143 0.148 MPB BTO: LOG: 08 TEFLON 706 FINE POWDER DRYER #3 3/18/91 43734 390 S 3/18/91 43735 390 S 3/18/91 43736 3/18/91 43737 390 S 390 S 3/22/91 43738 390 S 3/22/91 43739 3/22/91 43740 390 S 390 S 3/22/91 43741 3/22/91 43742 3/22/91 43743 3/22/91 43744 390 S 390 S 390 S 390 S BTO: 08 TEFLON C.8/FC-143 >6.0 MPB 1071.4% " C-8/FC-143 >6.0 MPB 1071.4% " C-8/FC-143 C-8/FC-143 0-152 MPB 27.1% >6.0 MPB 1071.4% C-8/FC-143 >6.0 MPB 1071,4% C-8/FC-143 C-8/FC-143 1.693 MPB 302,3% ** >6.0 MPB 1071.4% C-8/FC-143 0.097 MPB 17.3% C-8/FC-143 0.187 MPB 33.4% C-8/FC-143 0.79 MPB t T3 141.1% 0 0 C-8/FC-143 0.134 MPB Oi t^ M 23.9% 0 8/9/2001 5:02 PM EID139462 TesfRssults LOG: 720 INJECTION PUMP AREA 4/29/87 39691 330 S 3/8/92 44892 430 S file:WC|/WlNDOWS/TBMP/C-8-PC-143SP 9-2-81 Biro3-8-.92.htm C-8/FC-143 0.279 MPB 08/FC-143 0-34 MPB 49,8% 60.7% BTO: LOG: 08 TEFLON 728 WAX ROOM - B.162 -1 ST FLOOR 1/28/90 42843 480 S 06/FO-143 >4.0 MPB 714.3% " BTO: LOG: 18 297 9/2/61 TEFLON COPOLYMERS SPECIAL FEP SAMPLES 61628 S 9/2/61 61S29 S 6/2/81 61630 S 9/3/81 61631 S 9/3/81 61632 S 9/3/81 61633 S Thursday, August 09,20011:57:10 PM > C-a/FC-143 Ofl/FC-143 C-S/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 0.11 MPB 19.6% 0.04 MPB 7.1% 0.22 MPB 39.3% 0.92 MPB 164.3% ** 0.37 MPB 66.1% 0.33 MPB 58,9% Page lot 2 lilll 2 of 4 Sample Dt Sample * Duration 12/15/81 61634 Type Employee Name S Pars. chemical C-B/FC-143 Cone Unit Percent 0.03 MPB 5.4% 12/15/81 61635 S 12/15/81 61636 S C-8/FO-143 0.03 MPB 0 5.4% 0 0'> M C-8/FC-143 0.04 MPB to 7.1% 12/1S/81 61637 S 08/FC-143 0.04 MPB 7.1% 8/9/2001 5:02 PM EID139463 "TestResults i. 12/15/81 61638 S 12/15/B1 61639 S ^-.^ 12/15/81 61640 S 12/15/81 61641 S 12/15/61 61642 S 12/1S/81 61643 S 12/15/81 61644 S 12/1S/81 61645 S 12/16/81 61646 $ 12/16/81 61647 S 12/16/81 61648 S 12/16/81 61649 S . ,/ 12/16/81 61650 S 12/16/81 61651 "S 12/16/81 61652 S 12/16/81 61653 S 12/16/81 61654 S 12/16/81 61655 S 12/16/81 61656 S 12/16/61 61657 S BTO: 18 LOC: 299 TE;FLON@ COPOLYMERS #1 OVEN EXHAUST 9/28/81 61612 S file:/;'/CI/WINDOWS/TEMP/C-8-FC- 143 SP 9-2-81 thru 3-8-92 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC.143 C-8/FC-143 C-fl/FC-143 G-8/FC-143 C-6/FC-143 C-8/FC-143 C-B/FC-143 C-8/FC-143 C.8/F&.143 C-B/FC-143 C-8/FC-143 C-B/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 0.03 MPB 5.4% 0.03 MPB 5.4% 0.07 MPB 12.5% 0.03 MPB 5.4% 0.22 MPB 39.3% 0.04 MPB 7.1% 0.04 MPB 7.1% 0.04 MPB 7.1% 0.33 MPB 58.9% 0.07 MPB 12.5% 0.15 MP8 26.8% 0.07 MPB 12.5% 0.04 MPB 7.1% 0.04 MPB 7.1% 0.48 MPB 85.7% 0.04 MPB 7.1% 0.07 MPB 12.5% 0.15 MPB 26,8% 0.63 MPB 112.5% " 0.29 MPB 51.8% > 0 10 1-J >s 4.9 MPB 875.0% 8/9/2001 5:02 PM EID139464 TeslRssitHs 9/29/61 61613 rile:///C|/WINDOWS/TEMP/C-8-FC-143 SP 9-2-81 thru 3-8-92-htro C-8/FC-143 19.4 MPB 3464.3% Thursday, August 09.2001 1:57:10 PM Page 2 Of 2 4 of 4 S a 8/9/2001 5:02 PM EID139465

AR226-2219 EID294947 Emission Information tiBs !

AR226-2298 FP/D D1 Cooler FP/D 03 Cooler FP/D D2 Bypass FP/D D3 Bypass Current Permlt/ApDiication/PDF # 1823A 815D 815D 1353A Pre-ExistIng 614A 614A 781 1953 2365A 2365A 2365A Note: For soma vents the surfactant rate Is less than the total partlculate reported in Air Emissions Inventory whteh can include polymer dust.

AR226-2307 Scope and Cost of Air Dispersion Modeling Cathie Barton DuPont 03/10/03 Overview of the Scope I Can hire contractor or use in- house modeling resources Data Gathering > Modelim Interpreta of Resul 03/10/03 I Your input is critical here -vs^s^ Data Gathering Meteorological Data Terrain elevation maps Stack Parameters - Location (coordinates) - Height - Temperature - Stack gas vertical velocity - Diameter - Emission rates for each compound Plot Plan - Exact locations of all sources - Property line - Building locations and heights Modeler typi gets this information you 03/10/03 Standard Model and Methodo EPA's preferred model: Industrial Sou Complex Short Term 3 (ISCST3) Mode Procedures detailed in EPA's Guidelin Air Quality Models (40 CFR 51 Append http://www.epa.gov/scram001/guidanc de/appw_01.pdf 03/10/03 Modeling Output Model will calculate hourly concentra in ug/m3 across a study area (5 km x km for example) Model will average those concentrati over a designated time period (24 ho monthly, yearly) Concentration contours showed exte different ug/m3 Also shows numerical values (top 10 the study area and locations) 03/10/03 Technicolor Example of Outp 2480000-H 247BOOO 2476000-1 W1000-\ 2472000H 2-170000-^ 2468000-1 2466000-'- 608000 610000 612000 614000 616000 618000 620000 62200 Interpretation of Results Compare maximum averaged concentration to appropriate "thres value - Maximum annual average would be compared to a chronic toxicity value - Maximum hourly average would be compared to an acute toxicity value 03/10/03 Cost and Timing Expect about 50 man-hours (_10 h Costs - Outside modeler charges approximate $150/hr - Meteorological data could be up to $1 - Estimate around $8,500 for an averag 03/10/03