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ATTACHMENT 2 AR226-1540 SEPTEMBER 2002 THROUGH AUGUST 2003 AIR DISPERSION MODELING ANALYSIS OF APFO EMISSIONS DuPont Washington Works Facility Parkersburg, West Virginia RECEIVED OPPT NCIC 2003 October 31 8:25AM Prepared for: West Virginia Department of Environmental Protection Division of Air Quality 7012 MacCorkle Ave, SE Charleston, WV 25304-2943 Prepared by: DuPont Engineering Technology (DuET) Environmental Section Wilmington, DE 19898 October 17, 2003 1.

AR 226-0405 BIODEGRADATION TEST SUBSTANCE Identity: PreefrefrirueodrotoocatsanPesFuOlSfoAnAy,laFmiCd-o1(2et8hoyrl)aascetthaetem;ajmoarycoalmspoobneent of FC-127, FC-129, FC-109, FC-109-X or R1904.

BIOACCUMULATION TEST SUBSTANCE Identity: [2-(N-Ethylperfluorooctanesulfonamido) ethyl acrylate; may also be [reetfheyrleldhetpotaadsecBa1f2l2u8o,roDo-c1t,yljEstuFlfOoSnEyAlj,amoirnoFlXe-t1h3y. e(s2t-erP,roCpAenSoi#c 4a2ci3d-,822-- 5) Remarks:`mMoarteerbiaasleids aonn ainmfboerrmastoiloind.sRupepploiretdsbtyatSepsotnhsaotrs.amTphleeppuurriittyyiiidse9nt9it%y oofr the test substance cannot be substantiated.

AR 226-0359 BEHR-00699-313 CompgNY SaNniit.izey fg A355 _ 2=z o= m z2e5 s FLUOROCHEMICAL USE,DISTRIBUTION AND RELEASE OVERVIEW QE4P - Bo - 373 Dupps BAcode 06 20780 Prepared by 3M Company May 26,1999 000003 2 a TABLE OF CONTENTS Page TE 3M Production of Sulfonyl-based FIUOFOCHEMICAIS.oovcvrersssnrssnseossmsonnd 3M Sulfonyl-based FIUOFOChemical PrOUCtS vovvuvresomnsmsssonmsesmssessmssnons Profile of Major Product Categories...mmursmmmenssssssommsmsesmssmssons] 1 Paper and Packaging PrOIECIONS.cuvvarsvssmssssamsssssmssssssssseseesons PerfOMANCE CHEMICALS varanasi10 Ongoing and Proposed Exposure Assessment and Stewardship Initiatives.....o.......1] Chart 1: POSF Fluorochemical Reaction Tree cou...

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AR 2.26 0672 Centre Analytical Laboratories.

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AR 886 -- OT} BIODEGRADATION (BOD/COD) IESTSUBSTANCE~~~ 000000 Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203. (1- Octanesulfonic acid) (CAS # 2795-39-3).

AR 826 _ 0740 ACUTE TOXICITY TO FISH TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203A. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR 826 _ 084] BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity: A mixture containing perfiuorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-602. (1Octanesulfonic acid) (CAS# 2795-39-3).

Toxicological Summary PFOS Dietary Acute Northern Bobwhite Study Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, CAS# 2795-39-3 Remarks: The test substance is a white powder (3M lot #217).