NITRIFICATION INHIBITION TEST SUBSTANCE Identity:Mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredto as PFOS, FC-95, oras a component of FC-203CF-X or FC-203CF.

ACUTE TOXICITY TO AQUATIC INVERTABRATES (DAPHNIA MAGNA) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may also be referredtoas PFOS, FC-95, oras a component ofFC-600. (1-Octanesulfoniaccid,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-p,otassium salt,CAS # 2795-39-3) Remarks: The 3M productionlotnumber was not noted.

A ---- U4 ENVIRONRMEErNToArLTNLGA.BOERoAbTcOeRcsY ARR46- 357) Amended Final Report Analysis of PFBS, PFHS, PFOS and PFOA in Water Samples Collected at 3M Guin Laboratory Request Number: E05-0862 Method Requirement 3M Method ETS-8-154.1 (modified) Testing Laboratory 3M EHS Operations 3M Environmental Laboratory 9B3u5ilBdiunsgh2A-v36e-n0u9e St.

ARAa 6 p 136a 8 Federal Register/ Vol . 71, No . 19/Monday, January 30, 2006/Notices 4913 SUMMARY : The EPA Science Advisory several Federal Register notices 69 FR ENVIRONMENTAL PROTECTIO N Board (SAB) Staff Office announces a 16249-16250 (March 29 2004) ; 70 FR AGENCY public teleconference meeting of the 2157-2158 (January 12, 2005) ; 70 FR chartered SAB to discuss a draft SAB 32771-32772 (June 6, 2005) .

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May 15,2006 for Health and Environmental Sciences Elkton Road, P.O.

17) OECD 203-OPPTS 850.1075, 96-Hour static acute toxicity test with the (fathead minnow), 454A115 PERFLUORO BUTANE SULFONATE, POTASSIUM SALT (PFBS): A 96-HOUR STATIC ACUTE TOXICITY TEST WITH THE FATHEAD MINNOW (Pimephulespromelus) FINAL REPORT SANITIZED WILDLIFE INTERNATIONALLTD.

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425 Walnut Street, Suite 18( Cinc v ROBERT A BILOTT 513.357 .9638 bilott@tafdaw .com faft/ Taft Stettinius & Hollister LLP ti, OH 45202-3957 /Tel : 513 .381 .2838 /Fax : 513 .381 .0205 /www.taftlaw .com elana / Columbus / Dayton / Indianapolis / Nortnern Kentucky / Phoenix / Beijing Np - fbo- 373 {}ti-aaC-3ggl~ February 16, 2009 TSCA Confidential Business Information Center (7407M) EPA East - Room 6428, Attn : Section 8(e) & FYI U .S .

AL2S26S:394 Taft/ J aT July 7, 2010 SnEPA Do Cortes Docket Center,MOMC2208L2T2Ter EPA West, Room 3334 1200 Pennsylvania Avenue, NW Washington, D.C. 20460-0001 Re: OSuRbDm-i2s0s0i3o-n0t0o1I6RIS and AR-226 Database For PFOA/PFOS: TT EPA-HQ- To IRIS Database for PFOA/PFOS: sUuSlEfoPnAa'Itnse r(eef`sfPopFroOtnsSs"te)o tcwooitnthshiiendNetorhtepiecIrneftilesugosrruaoteoedcdtbRayinosUikScIEanPcfioAdrmo(an"tPiFFoenObASr"uy)asratynedm23p(,`eI2rRf0Il0Su"6)o,r,reo7go1actrFadenide.ngReg. 9333-9336 (Feb. 23, 2006), we are submitting the following additional information to USEPA for inclusion in that review, and for inclusion in the AR-226 database: 1 New Castle, Delaware, Municipal Services Commission Customer Flyer on PFOA/PFOS Test Results (2010).

o hr Director and Chairman JEFFERSON MEDICAL COLLEGE THOMAS JEFFoERfSON UNIVERSITY FTTE] - Ti= 5Y i !

PFOS: A 48-HOUR STATIC ACUTE TOXICITY TEST "WITH THE CLADOCERAN (Daphnia magna) FINAL REPORT `WILDLIFE INTERNATIONAL LTD.

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