voorstellingsronde PFAS-saneringstechnieken Collodale Aktieve Kool - Regenesis Ltd Colloidal Activated Carbon (CAC) 1 - 2 m diameter (zoals bacterie, rode bloedcel) Suspensie in water Toevoeging van cocktail van biologisch afbreekbare polymeren Goede verspreiding in ondergrond Geen hoge injectiedrukken noodzakelijk Brengt dunne film van AK aan op bodempartikels Vorming ondergrondse AK filter Heel snelle sorptie van PFAS Meer buitenoppervlak Kortere afstand tot sorptiesites dan bij GAK Xiao, Ulrich, Chen & Higgins.

EFPIA response to the ECHA consultation on the Annex XV restriction report on Per- and polyfluoroalkyl substances (PFAS) - Restriction on the manufacture, placing on the market and use of PFAS Introduction The European Federation of Pharmaceutical Industries and Associations (EFPIA) represents the biopharmaceutical industry operating in Europe.

r 3M General Offices AR226-1897 3M Center St.

P roven Results. m Analytical Report l i 3M Company Analysis of PFA and PFOS In Water Samples from Hastings Municipality E04-0909 Exygen Report No.

AR226-2263 E ID 294463 Current Permlt/Applicatlon/P D F # 1823A 81SD 815D 13S3A P re -E x istin g 614A 614A 781 1653 2365A Note: For some vents the surfactant rate Is less than the total particulate reported In Air Emissions Inventory which can Include polymer dust.

AR226-2484 C-8 Sump Analysis Sheet Date Time Liquid Sample Solids Sample pH .

AR226-2578 Laura Waller Document 10 of 16 ASH017 4 91 E1D477528 OHIO RIVER WATER SAMPLING PROPOSAL FOR THE WASHINGTON WORKS FACILITY AND THE LETART LANDFILL Date: February 2002 Project No.: D6WW7423 CORPORATE REM EDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 ASH017492 EID477529 Ohio River W ater Sampling Proposal Table of Contents TABLE OF CONTENTS 1.0 Introduction............,,................................. ................................... ....... ..1 2.0 River Water Sampling Approach Near The Washington Works Facility............... ...3 3.0 River Water Sampling Near the Letart Landfill....................................................... ..5 Table 1 TABLES Proposed River Water Sampling Plan DuPont Washington Works Facility and Letart Landfill Figure 1A Figure 1B Figure 2 FIGURES Proposed Ohio River Water Sampling Locations - Upstream, DuPont Washington Works Facility Proposed Ohio River Water Sampling Locations - Downstream, DuPont Washington Works Facility Proposed Ohio River Water Sampling Locations, Letart Landfill Site rev2rfver.doc Feb. 2 7 ,0 2 Wilmington, DE j A SH 017493 EID47753G Ohio Rivet Water Sampling Proposal Introduction 1.0 INTRODUCTION A multi-media Consent Order (Order No.

AR226-2583 Document 12 of 25 ASH018251 EID521411 I J J C-8 PLUME IDENTIFICATION/GROUNDWATER ASSESSMENT WORK PLAN DUPONT WASHINGTON WORKS FACILITY AND LOCAL, LETART AND DRY RUN LANDFILLS ) Date* May 2002 Project No.; D6WW7423 A CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 a ASH018Z52 EID521412 C-8 Plume Identlfigation/Groundwaier Assessment Work Plan Introduction TABLE OF CONTENTS 1.0 Introduction..................................................... ............,,................................................2 1.1 Document Organization................................................ ................ ..................... 3 2.0 Washington Works Facility................ ........................................................................ 4 2.1 Key Findings................. ............................................... ................ ..................... 4 2.2 Data Gaps................................................................................ ............ ............. 5 2.3 Summary--Recommended Activities to Fill Data Gaps................................... 5 2.4 Detailed Justification..... ....................................... ............................................. 3.0 Local Landfill.... .................................................................................... ....................... g 3.1 Key Findings..................................................................................................... 3.2 Summary-- Recommended Activities to Fill Local Landfill Data Gaps.......... 9 3.3 Detailed Justification........................... ................................................... ..........jq 4.0 Letart Landfill............................................................................................................... 4.1 Key Findings--Letart Landfill....................... .................... .................. ..........12 4.2 Data Gaps for the Letart Landfill...................................................................... 13 4.3 Summary--Recommended Activities to Fill Letart Landfill Data Gaps...... ..13 4.4 Detailed Justification ..................................................................................14 5.0 Dry Run Landfill............................................................................................. ........ 16 5.1 Key Findings--Dry Run Landfill......................................................... ........ 16 5.2 Summary--Data Gaps for the Dry Run Landfill............. ................. .........17 5.3 Summary-- Recommended Activities to Fill Dry Run Landfill Data G aps.............................. .................................................................... ........17 5.4 Detailed Justification............................... ............................................. ........17 6.0 Path Forward............................... ......................................... ........................ ....... 20 7.0 References............. ........................................ .. ....... 21 Figure 1 Figure 2 Figure 3 Figure 4 FIGURES Proposed Well Locations for the Washington Works Facility Proposed Well Locations for the Local T.anrfffn Proposed Well Locations for the Letart T^nrtfiit Proposed Well Locations for the Dry Run Tjwrifin APPENDIX Appendix A Sampling and Analysis Plan O-B Plume W ork PlanZrioc May. 20,02 W ilmington.

RECYCLED o> AR226-2684 AR226-2684 The miracles o f science' Study Title ADSORPTION-DESORPTION SCREENING STUDIES OF AMMONIUM PERFLUOROOCTANOATE Author William R.

RECYCLEO CD / AR226-2694 AR226-2694 DuPont EMSE Report No. 17-03 Study Title Adsorption/Desorption of Ammonium Perfluorooctanoate to Soil (OECD 106) Test Guideline(s) OECD 106 Guidelines for the Testing o f Chemicals; Adsorption-Desorption Using a Batch Equilibrium Method (January 21,2000) A u th o r Lynn Ann Dekleva Study Completion Date 17-April-2003 Test Facility E.I. du Pont de Nemours and Company Central Research & Development Corporate Center for Engineering Research Environmental and Microbiological Sciences & Engineering Glasgow Building 300, P.O.

AR226-2787 FOR D PONT USE ONLY E.

.Company Sanitized.

FOR D PONT USE ONLY AR226-2891 Copies Co E.

A R 226-3117 ^ 3 p |||. '.!''"

W M -.tbPI 53 000430 2 P- --- l_ o o D C .-8 LEVEL.