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WATER DEPARTMENT : 167 MAIN STREET *SAYREVILLE, N.J. 08872 : `TEL. (732) 390-7060 * FAX(732)238-2147 November 16, 2007 SDteaptaerotfmeNnetwofJeErnsveiyronmental Protection Bureau of Safe Drinking Water P.0.

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AR R26 _ 060 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (ACARTIA TONSA) IEsTsuesyANCE Identity: A mixture containing perfiuorooctanesulfonate, which may also be OrecftearnreesdutlofoansicPFacOiSd,) (FCCA-9S5,# o2r79a5s-3a9-c3o)m.ponent of FC-603EF. (1- RFeC-m6a0r3kEsF:.

Enclosure 3 Removal of PFOA with Granular Activated Carbon 3M Wastewater Treatment System Monitoring There are many factors that can influence the adsorption of a chemical constituent onto activated carbon.

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.. . 3M Strategic Toxicology Laboratory Study Title: Acute Inhalation Limit Toxicity Study of Perfluoroctanesulfonyl Fluoride (POSF) T-7098.3 rest Number (sample): T-7098.3 (Perfluoroctanesulfonyl Fluoride (POSF) Laboratory Project Identification: ST64 [n-Life Initiation Date: 5/1/2001 [n-Life Completion Date: 5/14/2001 Research Client: 3M Specialty Materials Division 3M Center Building 236 Saint Paul, MN 55 133-3220 Testing Laboratory: 3M Strategic Toxicology Laboratory 3M Center Building 270-SB-181 Saint Paul, h8N 55133L3220 Study Director: Andrew M.

Hollyhouse Inc.

- ADIETARYLCS0STUDYWIrToHTsHENORTHERN BOBWHITE WILDLIFE INMTELRANABTRIEOQNUAELSLTTDN,o.PRO0J2E7C23T NO 454.103 S5r U0S.

Toxicological Summary PFOS Dietary Acute Mallard Study Test Substance: Perfluorooctancsulfonate (PFOS) Structure; p1o-tOacstsanieusmuslaflot,niCcASa#cid2,7951-,3192.23.33.44.5.5,6,67,7,88$-heptadecafluoro-, Remarks: sTthoeretdesutndseurbstaamnbcieenits caonwdhiittieonpsoawndderpu(ri3tMy wloats#2o1r7i)g.inalTlyhedestaemrpmlienewdatso tbeechn9i0q.ue4s9.% bIny aLCsu/bMsSe,que'nHt-aHnMaRly,sis"oFf-tNhMeRtesatndsubcslteamnecen,talpuraitnyalywsaess determined to be 86.9%.

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AR226-2232 Steven L Grise 12/12/2001 09:43:14 AM To: cc: Subject: Bernard J ReilIy/AE/DuPont@DuPont, Robert F Pinchot/DEV/AE/DiiPont@DuPont, Debbie J Mulrooney/AE/DuPont@DuPont Steven L Grise/AE/DuPont@DuPont C.O.

AR226-3147 TRADE SECRET Study Title H-24335: Local Lymph Node Assay (LLNA) Laboratory Project ID: DuPont-3823 AUTHOR: Gregory S.