BACK TO MAIN ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE_________________________________________ Identity: Perfluorooctanoic acid, tetrabutylammonium salt; may also be referred to as PFOA tetrabutylammonium salt, tetrabutylammonium perfluorooctanoate, or as a major component of L-13492.

3M Environmental Technology and Services PO Box 33331 St.

A fL A Z G ACUTE TOXICITY TO FISH (GOLDEN ORFE) TEST SUBSTANCE____________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-603EF. (1Octanesulfonic acid) (CAS # 2795-39-3).

PFOS: A DIETARY LC50 STUDY WITH THE NORTHERN BOBWHITE WILDLIFE INTERNATIONAL LTD.

FOR DU PONT PSE ONLY AR226-2969 Du Pont BLR 802-91 Study Title Skin Irritation Test vith n Rabbits Author John V.

CCR C ytotest Cell R esearch GmbH & Co.

TRADE SECRET AR226-3084 DuPont HL-1997-01291 Study Title H-23004: Oral Approximate Lethal Dose (ALD) in Rats Laboratory Project ID: HL-1997-01291 Author: Tracy A.

CONFIDENTIAL AR226-3110 DPT478/992105 This report is considered by the Study Director to be the `final drift''and has bien submitted fthe Huntingdon Life Scienees.Quality Assurance Department for Audit _ _ The Sponsor is requested to review this document and commnni|aterafi.y coipients^to^fc_S^Jdrectc-,as soon as possible.

AR226-3393 HASKELL LABORATORY C4, C6 PERFLUORODIIODOALKANE EMERGENCY EXPOSURE LIMIT EEL: 50 ppb (1-60 minutes) Time Limit: 60 minutes Ceiling Concentration: 50 ppb Emergency Exposure Limits (EELs) are to be used for emergency planning purposes only.

ay oMMoAAzRRYsYLcLEEaEErmMMAAENNDDLLEERR [USSPO1.US2776421@oHnO [USSP01 .US277642]@HOSTMAIL on S02T72H6A11I95L7 02/26/1997 09:25:00 PM PPlleeaassee rreessppoonndd ttoo MMAARRYYLLEEEE MMAAEENNDDLLEERR [[UUSSSSPPO011..UUSS227777664422]] @@ HHOOSSTTMMAAIILL TToo:: RRoobbeerrt DtD..

AR226-0llY LE-19 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: Perfluorooctanesulfonate, Lithium salt; may also be referred to a1,s1,P2F,2O,S3,3Li,4s,a4l,t,5,F5C,-69,64,,7,o7r,F8,C8-,984--hXe.pta(d1e-cOacftluaonreos-u,lflointihicuamcsiadl,t, CAS #29457-72-5) Remarks: The test sample is a mixture of the test substance in water (approximately 24.5% test substance and 75.5% water).

.

CORNINGHazleton MUTAGENICITY TEST ON T-6342 MEASURING CHROMOSOMAL ABERRATIONS IN CHINESE HAMSTER OVARY (CHO) CELLS: `WITH A CONFIRMATORY ASSAY WITH MULTIPLE HARVESTS EINALREPORT AUTHOR Hemalatha Murli, Ph.D.

TOXICITY TO AQUATIC PLANTS AR 226 -- 0727 | Identity: A mixture containing perfluorooctanesulfonate, which may also be OrecftearnreesdultofoansicPFacOiSd,) (FCC-A9S5#, 2or79a5s-3a9-c3o)m.ponent of FC-203. 1- iRseFmCa-r2k0s3:. diethylene gClyuTcrohrleenbt3utMiynlfpeortrohmdeaurtc,ito3ino7n.in8ldo5ti%cnauwtaemtsbeeirt,ris2wa0as%minxeotttuhryneloetoendef.gl1yT.c3ho4el%, PteFsOtsSa,m3pl5e% 2.66 % Sultone foamer, 3% sodium octyl sulfate, 0.1% sodium lauryl sulfate, and 0.05% tolyltriazole.

AR 226 - 073% TOXICITY TO AQUATIC PLANTS IESTSUBSTANCE ~~~ 00000 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).