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GLP10-01-02; Interim Report 38 - Analysis of PFBS, PFHS, and PFOS in Groundwater Samples Collected at the Former Sludge Incorporation Area (FSIA) located in Decatur, AL, November/December 2012 Study Title Analysis of Perfluorooctane Sulfonate (PFOS), Perfluorohexane Sulfonate (PFHS) and Perfluorobutane Sulfonate (PFBS) in Groundwater, Soil and Sediment for the 3M Decatur Phase 3 Site-Related Monitoring Program Data Requirement EPA TSCA Good Laboratory Practice Standards 40 CFR Part 792 Study Director Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 P hone:610-701-3761 Author Susan W olf 3M Environmental Laboratory Interim Report Completion Date Date of signing Performing Laboratory 3M Environmental Health and Safety Operations Environmental Laboratory 3M Center, Bldg 260-05-N-17 St.

62# 3M General Offices f> 7 - 0500 1313M Center St.

PFOS: A 96-HOUR TOXICITY TEST WITH THE FRESHWATER ALGA (Anabaenaflos-aquae) FINAL REPORT WILDLIFE INTERNATIONAL, LTD.

BACK TO MAIN BIOCONCENTRATION (PARTITION COEFFICIENT) TEST SUBSTANCE______________________ Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The test substance is a white powder.

4R & S- 09th7 mo Oh < Telomer Research Program Update and Status Report Presented to U.S.

FINAL REPORT /t 3 2 -o ?

LDDa.iVrre.rcMyto.R,rP. hJo.Dh.n,sDonABT September 19, 2001 C3MorpMoerdaticeaTloDxeicpoalrotgmy ent received OPPT CBIC - o te 3P66SlrM55Otj.11oPhBC77nao33eusx3n3ol,tn3e9M1@r327,21N7mB2830um5OFi5lmadf1xf.i3icnc3oge-m30222200-02-E-02 U4CDAOW1ESfto0tafcnRisEcu:MhTenmiInSvoFSegiefnrIttcorEoTtteninDPoeom,trxn,oDMiecSc8nCeAW(tSesaI2us)lLi0bCPn4sgrot6oao0Ctnrecedcenitnsitoeanrto(Ar74g0e7n)cy 2001SEP 26 AM: 55 SeHQ'09o(-msx3 RPeer:flTuoSrCoAbut8a(nee)sSuUlfBonSyTlAFNluToIrAidLe:RCIASKS#N3O75T-I7C2E-4(SUPPLEMENTAL) ON: Dear Sir: fr3drksinnelecaMneusshryuoooueasrwrehlllo/tivanwandstetos.eie(dwoxTce(PniebokPScrByn)siBCe.ttdSytuSAwhuFAdFaeciy8ntt)athneesiai(midesnlTnSloxaaSurctlnlaeCbi2sdotavss8aArteetmey-aaxldd.snt8pa.atecolnyTioasCelShierlnumlueedciRrpbnoeiftitseinutossctoa.nktaarxtPcnlaNiTdBtttcsiioihooiaSiotsgetlnyFneinacRsmswleienio,xewosahfckhdsbeah4iasrNlrba7teaeeein,rotptdivoeitoo1siabdc3m6nrtste0i2ceeos,lordtaJindvunfunaiaedilandlctdyyceab4atdlewa1i7oamt9sS9itrni9telogehypr9pufny)popstisemnreeaacmrnnttiofhhdd(nlbni6uehseihshonarienirrslsx2soeaatt/ep8tuobdrin,orpouaaotstanty2uatwt,ao0hnrtco5ixe0oetuxih0slactoiu)enic.gltdifyitocyhinasalydnl ot fic3nolModrtuPhhsBiatnrsSgiaFe,ls.ahtn3aydMbglliioesuhncsaeeeldspePraxaBwhcSatoiuFcrsektsspa:vlfaesecnuleytpipleaalxsitiepaodonssaiudtierruerrleiilmnismgpitiicertahd(ta8oirn-rghytiernprgTmr.oWetdeAcia)titoeonfw,0ic.t1hhemtmhgei/cmfaol3llpo(r0wo.t0ien0cg8tivpepm) =r*o <^> Please contact me at 651.733-9218, for further information.

ft HcKG -- I 6 6 LABORATORY-SCALE THERMAL DEGRADATION OF PERFLUOROOCTANYL SULFONATE AND RELATED SUBSTANCES TEST SUBSTANCE________________________________________ Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or C8F i7S0 3'K+. (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).

3M Specialty Materials 3M Center St Paul, MN 55144-1000 651 733 1110 im r " c -

TAFT, STETTINIUS & HOLLISTER LLP NORTHERN KENTUCKY OFFICE CLEVELAND, OHIO OFFICE SUITE 340 3500 BP TOWER 1717 DIXIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 425 WALNUT STREET, SUITE 1800 200 PUBLIC SQUARE CLEVELAND, OHIO 44114-2302 606-331-2838 216-241-2838 513-381-2838 FAX: 513-381-6613 CINCINNATI, OHIO 45202-3957 FAX: 216-241-3707 COLUMBUS, OHIO OFFICE DAYTON, OHIO OFFICE SUITE 900 110 NORTH MAIN STREET 513-381 <2838 FAX: 513-381-0205 21 EAST STATE STREET COLUMBUS, OHIO 43216-4221 614-221-2838 DAYTON, OHIO 45402-1786 FAX :614-221 -2007 937-228-2838 _ vrVwV WwiiwQ I.UtaCfIti law.com SBHC^oW^-ooZ'IJiFAX: 937-228-2816 Ro b e r t a .

BACK TO MAIN 3M FLUOROCHEMICAL SUBMISSION TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE November 2001 Click on Study Title to View Report November 28, 2001 "H18636: Slide Review of pancreas lesions from DuPont APFO Study," E.E.

1UL&.2.G - 6bQ If fl L_ Barbara Leczynski 05/05/2000 03:37 PM To: Karen Lannon/DC/USEPA/US@EPA, Mary Dominiak/DC/USEPA/US@EPA cc: Subject: followup to perfluorochemicals meeting on April 28 -------------------------Forwarded by Barbara Leczynski/DC/USEPA/US on 05/05/2000 03:31 PM Charles Auer ; 05/05/2000 12:03 PM ro om~ov i JHS- -o zx ro cn CO <=>za ~ ~~ oo om --rn O pq OO To: dchakes1@mmm.com cc: bob.sussman@lw.com, Oscar Hernandez/DC/USEPA/US@EPA, Neil Patel/DC/USEPA/US@EPA, Robert Perlis/DC/USEPA/US@EPA, Barbara Leczynski/DC/USEPA/US@EPA Subject: followup to perfluorochemicals meeting on April 28 Dear Bill and Dan, 3M, We found the meeting very helpful in furthering our understanding of the situation with regard to PFOS and other perfluorochemicals.

AR226-2211 tt Ron J Buchanan 11/06/2001 07:07 AM To: Roger J Zipfel/AE/DuPont@DuPont ' cc: Robert F Pinchot/DEV/AE/DuPont@DuPont, John A Wilkens/AE/DuPont@DuPont Subject Re: Mulit Media Consent Order APFO data requirements || Thanks for the info Roger, could you send an excel spreadsheet showing the isotherm data and data plots you have??

AR226-2257 /F Steven H Swearingen L' 02/20/2002 09:43 AM To: Debbie J Mu Irooney/AE/DuPontSj'DuPont cc: Robert F Pinchot/DEV/AE/DuPont@DuPont, Todd M Krieger/AE/DuPont0DuPont Subject: Environmental Impact Study Several months ago for Rob Pinchot you did a screening study of ground level exposures for APF0.