ST internal Comespondence +7AR226-048H eakts Eval.

AR Q26 - 0911 TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE Identity: ArefmeirxrteudretocaonstPaiFnOiSng,pFeCr-f9lu5o,roorocatsanaescuolmfopnoanteen,twhoifcFhX-m3a1y03a.lso(1b-e Octanesulfonic acid) (CAS # 2795-39-3).

AR 886 - 0918 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE Identity: A mixture containing perfiuorooctanesulfonate, `which may also be referred to as PFOS, FC-95, or as a componenotf FX-3104. (1Octanesulfonic acid) (CAS # 2795-393).

Cee Bative report Hedin T0225 Be f seamed +o SRPT T0245 -35 Xenochemical Receptor trans-Activation by Perfluorooctane-based Chemicals T-29s" 35 AR226- 1723 oF or T-6375.357 E36 9 en. 3 piE-BY T-1563:) Contributing Scientists at Boston University: Jonathan Shipley Megon Walker DaJ.vWaixmdan dated12/08/2000 between 3M Medical Department, Corporate Toxicology 3M Center 220-2E-02 Aun: Andrew M.

BACK TO MAIN Analytical Report Fluorochemical Characterization of POTW Effluent Mobile, Alabama (W2151) Centre Analytical Laboratory Report No. 023-014K (Revision 1) Revision Date 3/26/01 ~ ~~ ~ ~~~ Testing Laboratory Centre Analytical Laboratory, Inc. 3048 Research Drive State College, PA 16801 3M Environmental Laboratory Contact Kent R.

6 3M Specially Materials 3M Center St.

ANALYTICAL METHOD VALIDATION FOR THE DETERMINATION OF PERFLUOROOCTANESULFONATE, POTASSIUM SALT (PFOS) IN ARTIFICIAL SOIL WILDLIFE INTERNATIONAL, LTD.

LaSrariyVRi.oZPorbeesli,deMntD MPR 0dMedical Dirctor 3M Medical Deparment S3tM.

Gril Company ASAI 6LAS5 0.170.

Azas- 1750 Laboratory Rep-- o Revr isiton 1 Analytical Report of Data for PFOS Dietary LC50 Study in Northern Bobwhite (Sera and Liver) Laboratory Report No.

NMSQ RELEASE A12125926 6- Minnesota Pollution Control Agency www.pca.state.mn.us Toll-free and TDD 1 (800) 857-3884 Saint Paul l Brained l Detroit Lakes 0 Duluth l Mankato 0 Marshall l Rochester 0 Willmar FOR RELEASE: May 9,200s MPCA Media Contact: Michael Rafferty, (65 1) 297-8294 MDH Media Contact: Tannie Eshenaur, (651) 215-0916 MPCA Technical Contact: lngrid Verhagen, (651) 296-7266 MDH Technical Contact: Jim Kelly, (651) 215-0913 GROUND-WATER INVESTIGATION CONTINUES TO FIND PFCS AT LOW LEVELS IN LAKE ELM0 PRIVATE WELLS AS FOUR TEST ABOVE HEALTH-BASED CRITERIA St.

AR226-2044 y Jack L Offenberger 07/07/99 01:68PM To: cc: Subject: Lester H Marks/AE/DuPont@OuPont, Stephen J Devries/CL/DuPont@DuPont, James W Hunt/Cl-/DuPont@DuPont, Partick J Cavanagh/CUDuPont@DuPont, Kevin C Rent2sch/AE/DuPont@DuPont Lauren D Andwson/AE/DuPont@>DuPont.

AR226-2162 ^y H David Ramsey 07/16/2001 11:02 AM To: cc: Subject: Dawn D Jackson/CL/DuPont@DuPont, George A Ainsley/SE/DuPont@DuPont FW: Call From Jesse Hanshaw Three key notes - there are some of us who prefer the State and I both conduct modeling so it is more independent - Forwarded by H David Kamsey/SE/DuPont on 07/16/2001 11:01 AM -- John J Mentink 07/10/2001 08:30:49 AM To: cc: Subject: H David Ramsey/AE/DuPont@DuPont FW: Call From Jesse Hanshaw This is the note originally issued by Chris Shoop.

AR226-2170 ^_- Current Permit/ Appllcatlon/PDF it 1B23A B15D B1SD 1353A Pre-ExistIng 614A 614A 781 ' 1953 2365A Permit Vent ID T7IME T61FCE T612CE 1'84-SE 164-2S 163-E-28 163-E-11 163-E-33 242 C1FSE Reg 29 Unit ID TIM TIP T12 THJ THG CDT CDW CDB C6H CFS Reg 29 Vent ID 662 647 699 652 658 231 232 216 242 274 Zone 17 UTM-E UTM-N 442025 4346847 442084 4346833 442102 4346811 441920 4346767 441923 43487S6 441939 4346773 441940 4346772 441960 4346788 441954 4346741 441787 4346744 Stack Diameter (TO 1.33 1.5 1 1.96 1.63 0.82 2.08 1.3 0.67 0.69 Stack Diameter (nrt 0.405 0.457 0.305 0.598 0.497 0.251 0.635 0.396 0.204 0.210 Stack Height (fty 150 59 63 70 68 71 68.6 60 70 110 Slack Height (m) . 45.7 18.0 19.2 21.3 20.7 21.7 20.3 18.3 21.3 33.5 Base Elevation (m) 191.1 191.1 19S.7 194.9 195.0 197.8 197.9 198.2 197.4 197,3 Stack Flow ACFM 3349 I 8000 1000 9800 2800 500 600 2750 1250 1000 Stack Velocity (m/a) 12.2 51.8 6.5 16.5 6.8 4.8 0,9 10.5 18.0 13.6 Stack Temp (H 172 111 111 200 300 130 130 158 200 255 2000 Stack Temp (K> 350.9 317.0 317.0 366.5 422.0 327.6 327.6 343.2 366,5 397.0 Permiled Est Actual Emissions Ib/yr 0 14,308 0 275 137 2280 2310 0 729 2107 Allo Emis Ib TBI2CE consists of 18 separate 1-ft diameter stacks, located close together.

AR226-2179 Roof Levels BIdg 180A Vent or Desc 184 Tefzel* / PFA BIdg (Dryer vent locn) 110 PFA Polykettle BIdg Telomer Line 3 163 FEP Line 3 164 Granular Finishing 108 Thermal Converter base 116 Cooler Absorber 109 Slaker BIdq 109 CaF2 Bids 113 Old Stillhouse - East-Wast 113 New Stillhouse - N-S Southern 40% 113 New Stillhouse - N-S Northern 60% 187 Distillate Storage Tanks 12 Firehouse 301 Powerhouse-N-S Main BIdg 301 Powerhouse-E-W Extension 362 ffS Boiler BIdg 204 Delrin' Stillhouse 18 E&lShop Roof Ht 95.5 40 64 44 61 76 X 38 101 92 133 52 25.8 68.9 X 23.0 667.25 27,3 Items with roof level marked "X" were marked on the map but do not have significantelevation. 002366001 .Building HelghtS.xIs 08/16/2001 (AUTODATE) Root Islands BIdg B-163 has many roof levels. 30' Is probably typical.