AR226-2023 INTEROFFICE MEMORANDUM Data: Fronis Dept; T&l NO; 12-Oeo-1S96 02;30pm EPT ANTHONY J.

AR226-2053 !

OECD polymer of low concern (PLC) criteria and additional customeer related criteria OECD = Organisation for Economic Co-operation and Development Polymers currently in use Polymer composition MW, Mn, MWD Fluoropolymer PTFE TFM-PTFE PFA FEP Flourpolymer Coating Alternative Materials (just as examples) UHMW-PE PEEK PA 1014 PMMA PPS PI Glass Symbols Meaning Accept Not fulfilled Accept with limitations Nearly not fulfilled Legend Polymer composition Polymer composition, structure & elemental composition; including CAS no.

AR226-2112 Test Results Sample Date Range Concentration Range Action Level - n < - ' g----CT'g In =;-TC d W3-;i u s t r i eJ :;ry;nTip;'-ra-j<j,,-jt ; ';=t.S-CT,-.-'----- -:----- -:-- JHygie ; -,- : - ne - - ----' 1/1/84 12/31/84 100% Sample Dt Sample Duration Type Employee Name BTO: 08 LOG; 701 TEFLON FINE POWDER DRYER--EAST SIDE (K 11QB4 46247 3SO Z 1/13HB4 46248 380 Z 3/11/84 46240 3SO Z 4/10/84 46250 398 Z 5f7/84 48251 390 Z 6084 46252 7/284 46233 380 Z 360 2 7/30/B4 46254 360 2 8C484 4625S 330 Z 9H23(B4 46256 420 Z 10(21/84 46257 3GO Z 12/17/S4 46258 370 Z Pers Chemical C-8/FC-143 C-6/FC-143 Cfl/FC-143 C</FC-143 <>a/FC-143 C-8/PC-143 C-WG-143 C-8ffC-143 08/FC.143 (>8/FC-143 C4/FC-143 08/PC-143 Cone Unit Percent 82 MPB 0.19 MP8 0.31 MPB 0.21 MPB 0.47 MPB 0.29 MPB <0.08 MPB 03B MPB OJ53 MPB 0.02 MPB 036 MPB 039 MPB 146425%* 33.6% 55.4% 375% 83S% 51.8% 5.4% 50j0% 94.6% 110.7%** 43% 69,6% BTO: 06 TEFLON U3C; 702 FINE POWDER DRYER CONTROL ROOM (ALSO SEE TTF031 1/23(84 36566 345 Z C-8/FC-143 1/27/S4 36567 420 Z C.8/FC-143 2/20(84 36568 3/17/84 36668 360 Z 360 Z 0-8^0.143 C-fl/FC-143 6/12<B4 36670 385 Z C-e/PC-143 7/8184 36571 340 Z C-8/PC-143 8/4(84 36572 420 Z Ofi/FC-143 10/2/B4 36573 360 Z C^/PC-143 11/24(84 36574 390 Z C-e/FC-143 1203(84 3S5?

For Internal Use Only October 14, 2017 FINAL Verbal talking points for use by customer-facing roles regarding PTFE dispersion products It has recently been brought to our attention that our polymer dispersion products that utilize our LX technology contain two types of impurities, partially fluorinated sulfonates and sulfates.

AR226-2304 Based on RAGS (Superfund) guidance, Exhibit 6-11 Intake (mg/kg-day) =CWxlRxEFxEP BWxAT !

Appendices 1.

SITE SCREENING LEVEL ASSESSMENTS FOR PFOA AND THE RELEVANCE OF SOIL SAMPLING Date: OctobertO, 2003 Project No,; 18983753.00034 ^ CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 EXP001453 SHe Screera'ng Level Assessments for PFOA and the Relevance of Soa Sampling Table of Contents TABLE OF CONTENTS Executive Summary. 1.0 Introduction ..... 2.0 Data Presentation................................................................................................ 2.1 Development of a Generalized PFOA Screening Level Site Conceptual Model...............,................................................................................................3 2.2 Laboratory Studies of PFOA and Field Sample Verification........................... 4 2.2.1 The Behavior of PFOA in Water......................................................... 5 2.2.2 Adsorption/Desorption of Ammonium Perfluorooctanoate to 2.2.3 2.2.4 Soil.......................................................................................................5 Little Hocking Water Association Investigation Results..................... 7 Washington Works RFI Soil Sampling Results................................... 8 3.0 Summary... .10 4.0 References. .11 Table I Table 2 Table 3 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 TABLES Washington Works RFI Soil PFOA Results '-- Washington Works RFI Surface Soil PFOA Results Washington Works RFI ADP SWMU Soil PFOA Results FIGURES PFOA Screening Level Assessment Model Comparison of K^s for PFOA and Other Chemicals Little Hocking Water Association Well Field Soil PFOA Results Washington Works RFI Soil PFOA Results Washington Works RFI Surface Soil PFOA Results Washington Works RFI ADP SWMU Soil PFOA Results soil position paper4.doc Oct. 20, 03 Wilmington, DE EXP001454 Site Screening Level Assessments for PTOA and the Relevance of SoB Sampling _____EXCCUtlVe Summary EXECUTIVE SUMMARY DuPont's extensive implementation of both media specific assessment modeling tools and comprehensive on-site and off-site soil, surface-water, and groundwater monitoring for perfluorooctanoate1at the Washington Works site in West Virginia allowed for compilation of a generalized screening level assessment model.

To: From: restrictiePFAS @rivm.nl] 2966005 Sent: Subject: Tue 7/19/2022 12:19:13 PM FW: Fluoropolymers - New scientific study demonstrates the insignificant risk fluoropolymers have on human health or the environment during the intended use phase, according to internationally recognized criteria Received: Tue 7/19/2022 12:19:14 PM Ter archivering bij Plastics Europe From: JIE @iasticseurope.org> Sent: dinsdag 19 juli 2022 14:16 WE EES @baua.bund.de; EEE se; EEE eo niljodir.no; IEEE @mst.dk; < 5.1.2e @rivm.nl> oem Subject: Fluoropolymers - New scientific study demonstrates the insignificant risk fluoropolymers have on human health or the environment during the intended use phase, according to internationally recognized criteria Dear Madam, Dear Sir, A new scientific study demonstrates the insignificant risk fluoropolymers have on human health or the environment during the intended use phase, according to internationally recognized criteria. 1.

The Secret to Driving Efficiency and Quality in Polyolefin Manufacturing and Processing About Viton FreeFlow-Fluoroelastomers With Viton'" FreeFlow--, you can do more with less.

2965230 From: Subject: Date: uses woensdag 16 februari 2022 11:39:57 Goede middag ik heb met Plastics Europe en team) gesproken en we zijn nu bezig om de Fluoropolymeren applicaties in kaart te brengen --waarom ze gebruikt worden en wat de trade-off is als we ze niet meer kunnen gebruiken.

AR226-2567 1 N OF To; From; TE R PICE MEMO Mr.

Pilot-Scale Fluoropolymer Incineration Study: Thermal Treatment of a Mixture of Fluoropolymers under Representative European Municipal Waste Combustor Conditions Dr.

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AR226-2651 41 AR226-2651 Verification Study for Air Dispersion Modeling at Fenceline Draft Plan October 2003 Table of Contents I.