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J Wildlife International, Ltdl 454C-107 DETERMINATION OF THE WATER SOLUBILITY OF PFOS BY THE SHAKE FLASK METHOD ADDENDUM WILDLIFE INTERNATIONAL, LTD.

AR226-2244 Thompson Colllns Watkins Smith Name Concentrations are from the deposition modeling runs, and Include wet and dry depletiondue to deposition Coordinates Paniculate Deposition (a'm'/yr) Vapor Deposition (S/nAyr) Total Deposition (g'nAyr) 445213E 4346090N 443141E 4345753N 443223E 4345847N 443254E 4345888N 0.00098 0.00179 0,00193 O.OQ186 0.00008 0.00021 0.00019 0.00018 0.00106 0.00200 0.00212 0.00204 Particulate Concentration Vapor Concentration Total Concentration (uaftn')____(ug/m'l____tug/in') 0.02000 0.03217 0.05217 0.03752 0.05854 0.09606 0.03665 0.05695 0.09360 0,03554 0.055B7 0,09141

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AR226-2393 C-8 REDUCTION & CONTROL PROGRAMS STATUS R.

AR226-2583 Document 12 of 25 ASH018251 EID521411 I ^ I I I C-8 PLUME IDENTIFICAT10N/GROUNDWATER I ASSESSMENT WORK PLAN I DUPONT WASHINGTON WORKS FACILITY AND LOCAL, LETART AND I DRY RUN LANDFILLS I I I Dates May 2002 I Project No.; D6WW7423 I ^ I CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond I Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 I I I ASH018252 EID521412 I C-a Plums IdenflfledUon/GioundwatBr Assessment Wotk Plan __Introduction y TABLE OF CONTENTS 1.0 Introduction.......................................................................................................... 2 1.1 Document Organization..--......,........--........-,......--... .....,,..............,,..,,..-- ...,...3 1 2 . 12.0 Washingtoii Works Facility.....................................................................,.......,.,.,.4 Key Findings..............................................................................................4 2.2 Data Gaps,............................................................................................... ,.5 2.3 Summary--Recommended Activities to Fill Data Gaps.................................. 5 2.4 Detailed Justification..............................................................................6 1 1| H ^ 3 4 . . 3.0 Local LandfilL..................,.,..................,..,......................................-..........,.............8 KayFhldings.......................,,...................,...................,.................,..................,8 3.2 Summary--Recommended Activities to Fill Local Landfill Data Gaps ...........9 3.3 Detailed Justification................................................................................ 10 14.0 Letart Landfill...................................................................................................... 12 4.1 Key Findings--Letart Landfill.......................................................,...,,...,...12 Data Gaps for the Letart Landfill.........,................-...................,,.............,.....13 4.3 Summary--Recommended Activities to Fill Letart Landfill Data Gaps,.,......13 4.4 Detailed Justification .......,,,,.,,....................................................................14 25.0 Dry Run LandfiU...........................,.....,.....................................................-,.,...........16 5.1 Key Findings--Dry Run Landfill............................................................ 16 5.2 Summary--Data Gaps for the Dry Run Landfill............,,.,,,...............,.,,........]?

AR226-2753 Copies Co Material Tested Uccanoic ac id, pentadecafluoro- , ammonium saic* E.

Study Sponsor: Issue Date: Document Reference No.: ATOCHEM 2-NOV-87 98797 AR226-2933 Acute Toxicity to Daphnia Magna Author(s): A.M.

ARag6_ 343 | { | { 418 i | | || [5rarGov-- age Sty-- n Ra ih OneGerm Reprodstion Evations HAAG - 3236 RDeuvriosendsP3a8g6e "TRADE SECRET Study Title H-24516: Subchronic Toxicity 90-Day Gavage Study in Rats `with One-Generation Reproduction Evaluations Revision No. 1 Volume 3 of 5 "TEST GUIDELINES: U.S.

ARA%6 _ 3282 464 AR2AG - BREA _ -- --------_ Duro-- n 11414 `TRADE SECRET Study Title H-25134: Four-Week Inhalation Toxicity Study in Male Rats TEST GUIDELINES: OECD Guideline for the Testing of Chemicals Section 4: Health Effects, Number 412 (1981) AUTHOR: Linda A.

ARaz6-- 3303 ~D [Swd| yNmoai0.1] ARAE - 3363 Study Report Volume 31 a i (fon-GLP study) October 16, 2003 Chemicals Evaluation and Research Institute, Japan Kurume Laboratory `Company Sanftized.

- r bE I \8S,FroAEn RliIss 1 " Attachment 2 Aezzg-/776- [ [ r I~ 1 | vc --_ i |- - | [ I te || Air Sampling Fluorochemical Report DuPont Washington Works -- Air Sampling Program Round 8 Exygen Research Report No.