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AR226-2111 Test R esu lts Industrial Hygiene Sample Date Range 1/1/83 12/31/83 Concentration Range A ction Level 100% - -V.............. - Sample Dt Sam ple# D uration Type Employee Name Pere Chemical - BTO: 07 LO G : 411 TECHNICAL BLDG. 1 6 3 -1LAB GENERAL AREA 1/3/83 34060 1/4/83 34051 413 Z 403 z 2/4/83 34052 2/4/83 34053 424 z 427 z 3/1/83 34054 3/1/83 34055 418 z 419 z 4/5/83 34056 4/5/83 34057 433 z 431 z 4/29/83 34058 4/29/83 34059 5/10/83 34060 5/10/83 34061 441 z 441 z 444 z 443 z 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-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 BTO: 08 TEFLON LOC : 701 FINE POWDER DRYER-EAST SIDE #2 1/3/83 46216 360 z 1/4/83 46217 360 z 1/4/83 48218 355 z 1/17/83 46219 360 z . 1/17/83 46220 360 z 1/18/83 46221 400 z 2/8/83 46222 360 z 3/1/83 46223 310 z 3/4/83 46224 300 z 3/4/83 2 2 5 300 z 3/7/83 46226 360 z 3/8/83 46227 300 z 4/10/83 46228 360 z 4/20/83 46229 300 z . 4/20/83 46230 270 z 5/18/83 46231 360 z 5/18/83 46232 360 z Tuesday, January 16,2001 10:26:39 AM 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-8/FC-143 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-8/FC-143 C-8/FC-143 CS/FC-143 C-8/FC-143 Cone U nit Percent <103 MPB 0.11 MPB <0.03 MPB <0.03 MPB 0 .0 3 MPB 0 .0 3 MPB 0.35 MPB 0.12 MPB 0.03 MPB 0 .0 3 MPB 0.03 MPB 0.03 MPB 5.4% 19.6% 54% 5.4% 5.4% 5.4% 625% 21.4% 5.4% 5.4% 6.4% 5.4% 0 .0 3 MPB 0.12 MPB 0.06 MPB 0 .0 3 MPB 0 .0 3 MPB 0.04 MPB 0.04 MPB 0 .0 3 MPB 0.62 MPB 0.86 MPB 0.19 MPB <0.03 MPB 0 .0 3 MPB 0.2 MPB 0.06 MPB 1.58 MPB 0.03 MPB 5.4% 21.4% 14.3% 5.4% 5.4% 7.1% 7.1% 5.4% 110.7% ** 153.6% 33.9% 5.4% 5.4% 35.7% 10.7% 282.1% ** 5.4% Page 1 o f 43 AJP003948 EID 113083 1 Ta Sample D t Sam ple# D uration Type Em ployee Name 5/18/83 46233 6/4/B3 2 3 4 6/4/B3 4623S 6/4/83 46236 6/7/83 46237 6/8/83 46238 6/8/83 2 3 9 7/3/83 46240 8/15/83 46241 6/15/83 46242 8/15/B3 46243 10S/83 46244 11/22/83 46245 11/23/83 46246 360 2 400 Z 395 z 390 z 255 z 370 z 365 z 325 z 390 z 360 z 375 z 420 z 340 z 440 z Pera Chem ical C-8/FC-143 C-8/FO-143 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-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 BTO ; 08 LO C; 702 TEFLON FINE POWDER DRYER CONTROL ROOM (ALSO SEE TTF031 2/1/83 36514 560 z C-8/FC-143 3/2/83 36515 3/2/83 36516 3/6/83 36517 3/7/83 36518 3/7/83 36519 3/7/83 36620 390 z 390 z 360 z 360 z 360 z 360 z C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 3/9/83 36521 3/14/83 36622 3/14/83 36623 3/14/83 36524 4/10/83 36525 375 z 393 z 396 z 396 z 360 z C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 4/18/83 36526 4/18/83 36527 4/18/83 365% 4/25/83 36529 4/25/83 36530 360 z 0 z 360 z 357 z 352 z C -8/F 0143 C -8/F C 443 C-8/FC-143 C-8/FC-143 C-8/FC-143 4/25/83 36531 5/17/83 36532 5/17/83 36533 6/2/83 36534 360 z 420 z 420 z 325 z C-8/FC-143 C-6/FC-143 C-a/PC-143 C-8/FC-143 6/2/83 36535 325 z C-8/FC-143 Tuesday, January 16,2001 10:26:39 AM 3.7^ MPB 04KM PB 0 ,o i'M P B 0 .3 # MPB a irfM P B 0.41 MPB 0.3M PB I 0 .4 9 |m PB 0.16|M PB 2.06 MPB 0B#M PB O .II m PB 0.07|M PB 0.19 MPB Percent 669.6% ** 83.9% , 5.4% 69.6% 33.9% 73.2% saw 875% m m ," 28.6% -t jgJ.. 3675% 153.6% ** 30.4% -SKPlISi 12.5% 335% 0.17 MPB 0.45 MPB 0.36 MPB 0.83 MPB 0.09 MPB 0.05 MPB 0.07 MPB <0.03 MPB 1.64 MPB 1.78 MPB 154 MPB 0.37 MPB 0.08 MPB 0.04 MPB 0.04 MPB 0.1 MPB 0.1 MPB 0.1 MPB 0 .

AR226-2141 Z~*7 AV mm ATTACHMENT XIV tS7*iUA*>K C 2 . du Po n t de N e m o u r s S.

AR226-2213 EID368665 Current Permit/Applieation/PDF 1823A 815D 815D 13S3A Pre-Existing 614A 614A 781 1953 2365A Note: For some vents the surfactant rate Is less than the total particulate reported In Air E Note: If emissions are sent to T6IZCE then emissions from T6IFCE are reduced.

AR226-2292 Chris EShoop 10/17/2002 10:07 AM To: Robert L RitcheyVCL/DuPont@DuPont ck OscarT Garza/AE/DuPont@DuPont, Ta-Wei Fu/SE/DuPont@DuPont, Fred M Lentz/SE/DuPont@DuPont, Karl GKronberg/AE/DuPont@DuPont, Debbie J Mulrooney/AE/DuPont@DuPont, Robert I Wevodau/SE/DuPont@DuPorrt Subject Explanation of input Data for Modeling Studies Bob, Per your request and in preparation for discussions with the Ohio EPA, please see the foltowing descripflon of the development o f the emission numbers used in the modeling studies for 2002 and 2003.

AR226-2314 ^ Charles J Zarzecki ' 03/17/200311:09 AM To: Catherine A Barton/AE/DuPont cc: Subject A ER M O D Met Data Hope you're having a wonderful conference call.

AR226-2332 f?

\ AR226-2409 INTEROFFICE MEMORANDUM Dates From; Dept : Tel No 29-May~i99Q 12:23pm Peter D.

AR226-2466 "Roger J.

FEB. 20. 2002 9 :34AM Michael B a t e , Chief Division o f Drinking and Ground Waters Post Office Box 1049 Columbus, OH 43216-1049 Dear Mr.

RECYCLEO ro AR226-2690 AR226-2690 Executive Summary - Biodegradation Screening Studies of 8-2 Telomer B Alcohol - The two studies described in the attached reports (EMSER 13-03/4842 and EMSER 15-03/4842) represent the screening phase for the biodegradability assessment of 8-2 Telomer B Alcohol (CAS# 678-39-7).

AR226-2817 DuPont-15372 TRADE SECRET Study Title H-24921, H-26313, and H-26225: Evaluation of the Interference of the Test Substance in the Analysis of Rat Serum Lipids Author: Denise Hoban, B.A, MLT (ASCP) Study Completed on: October 13,2004 Testing Facility: E.I. du Pont de Nemours and Company HaskellSMLaboratory for Health and Environmental Sciences Elkton Road, P.O.

GLP10-01-02; Interim Report 28 - Analysis of PFBS, PFHS, and PFOS in Groundwater Samples Collected at the Former Sludge Incorporation Area (FSIA) located in Decatur, AL, March/April 2012 Study Title Analysis of Perfluorooctane Sulfonate (PFOS), Perfluorohexane Sulfonate (PFHS) and Perfluorobutane Sulfonate (PFBS) in Groundwater, Soil and Sediment for the 3M Decatur Phase 3 Site-Related Monitoring Program Data Requirement EPA TSCA Good Laboratory Practice Standards 40 CFR Part 792 Study Director Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 P h o n e :610-701-3761 Author Susan W olf 3M Environmental 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.