AR226-2860 Material Tested: , E.

.* K FOR DP PONT BSE PULT AR226-2970 Du Pont H M 809-91 Study Title Eye Irritation Test witt dn Rabbits Author John .

TRADE SECRET Study Title H-24QQ1: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Laboratory Project ID: DuPont-2924 AR226-3156 DuPont-2924 Author: Carol Finlay, B.A.

AR226-3206 D uP on t-2931 Supplement N o. 1 TRADESECRET Study TUle H-24042: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Supplement No. 1 Laboratory Project ID: DuPont-2931 Author: Carol Finlay, B.A.

3-2j' DuPont-12966 TRADE SECRET Study Title H-25777: Inhalation Approximate Lethal Concentration (ALC) in Rats A uthor: David P.

M6_ I- 28 000235 DuPont Company Chambers Works PFOA in Blood -^ Chambers Works PFOA Recycle ntaawwasslPffdshauoaeannsoerbaoemvmtriddttausoeorePbn1kprp2c3rrr1eFe9aetall04ti0eoi9rotOnls0nros0srn9eady0g.AsrewolmpeuyatiwbwaTpaafsnhbpprlrbtb4haldootyrsley-l.2isii.oyrunsa2waascdwPlpg0WlqosocoahF0msuoncoonbuyiO0oorangndfologkrnduebnAtturkniehrtllaeelbceaiirdoeintftwdstrecnooieobseePtwvwrardadedwyliFtsosanoeoimcsOalhnhbdgrorvioetaokogeoAle2cmcdetrncndtva0eoaoroRepbmioc0stnwtdloa.eotele0lcepurreeviDtrceedtyowanicnyahnnduittluicgtheetgautPnhtrlshnedinoaeaoceicmresnatthianepte,irnlghPomadetyrtitheonnFcnazhg1fpecsyynOcibo9aeanelcas9allroiuAgeseollgs9tcesydffsweebn.f,hsrttepsleslihebreidottccrnoceiShassoaotne3ymthsiaalcCdvgce0comnlceaeeallhwsishipitnvlpn1naanosieeeee0lmbcmeggmeoadsl0lrrssbnuspbppaari.plddlwsetrlepooeeipotreBsohsifosesbcdutfnytrlsfdreWf.hloeooootswssessouAmpsartuoada.in<ecnWpmtrlnrohtdlak1mAphadlnpso0aotteyeaohtlo0sfsrlserzrnehorteaoadtsepschiictormldtn,puwitseooipgrmg.bnspanoreesieti.lsndnbarorBenedaeamwconsgrcatlbh,ocitashWpohiba1youespolnn9ulletnttcoillhsui9hstneedcorer9iecsekisbnetoonts1gldelacfoat9brdnufohbooo9odcuaoud9rttlthenpdd rTaenhloiiasthbelexerpmdearetitaehnaoctdethtlheeadltoDwwuoPlueolvdnetblsteoimnwwoorrhekicswehniwtshietaivwdeeiafrfenedirneptnertorecvsoitdneedtr.amcot raensaclyietinctaiflilcaablloyraatcocruyroatne and J) December 9,2004 Barbara J.

- 3V- 7 A R .& Z6 - }lf 1 ORGANIC FLUOROCQMP PONDS IK BLOOD In May, 1978/ 3M informed Du Pont of findings of organic fluorocompounds in blood of employees exposed to long-chain perfliioro-surface active materials. 3M reported airborne contaminant levels up to 81 ppm in their operations and organic fluorine blood levels of 1 to 71 ppm for exposed workers. 3M reports that some level of organic fluorine in humans is normal/ i.e. equal to or less than 1 ppm.

jf - f f Anthony F.

AR226-3650 Attachment A 000003 " > r4,~ V ANALYTICAL REPORT ST LT R E N T STL Denver 4 9 5 5 Yarrow Street Arvada, CO 8 0 0 0 2 Tel: 30 3 7 3 6 0 1 0 0 Fax: 3 0 3 4 3 1 7171 w w w .stl-inc.com PFOA Analysis Lot#: D6A270318 Dale VanDeVelde GE Plastics State Route 892 DuPont Road PO Box 68 Washington, WV 26181 Severn Trent Laboratories, Inc.

Atlanta Denver Los Angeles Philadelphia T homas b .

'3/ Qb J f-y*oc-3l5~ Garfield water Department Client Sample ID: Gli B U M D C D PARX PUKP STATION HPLC Lot-Sample fi... ; D8C060309-001 Work Order f . : KH51C1AA Date Sampled__ : 03/05/08 09:00 Date Received..: 03/06/08 Prep Date..... : 03/10/08 Analysis Date..: 03/12/08 Prep Batch ff___: 8070135 Analysis Time..: 22:21 Dilution Pactor: 1 Method DEN -LC-0012 Matrix PARAMETER PROS PFOA RESULT 0 .0 2 1 0.038 REPORTING LIMIT UNITS 0.010 ug/L 0.015 ug/L SURROGATE 13C4 PFOA 13C4 PFOS PERCENT RECOVERY 67 41 * RECOVERY LIMITS (50 - 200) (50 - 200) BOIB(S): ________________ * Sum m it recovery ti outtide rated conirot lmiti

Jean B.

Analytical Report Fluorochemical Characterization of Aqueous Samples Decatur Outfall 001 FC Monitoring (E03-0326) Exygen Research Laboratory Report No.

INTERIM REPORT # 6 - Analysis of Liver and Serum Samples STUDY TITLE Analysis of Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), and Perfluorooctanesulfonate (PFOS) in Water, Soil, Sediment, Fish, Clams, Vegetation, Small Mammal Liver and Small Mammal Serum Using LC/MS/MS for the 3M Decatur Monitoring Program DATA REQUIREMENTS EPA TSCA Good Laboratory Practice Standards 40 CFR 792 STUDY DIRECTOR Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 Phone: 610-701-3761 INTERIM REPORT COMPLETION DATE April 23, 2008 PERFORMING LABORATORY MPI Research, Inc. 3058 Research Drive State College, PA 16801 Phone: 814-272-1039 STUDY SPONSOR 3M Company 3M Building 0236-01-B-10 St.

SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER: 244964 Prepared For: Weston Solutions, Inc. 1400 Weston Way Building 5-2 West Chester, PA 19380-1499 Project: Confidential Decatur - FC Investigation Attention: Jai Kesari Date: 03/23/2006 Signature Name: Richard C.