BACK TO MAIN 3M Medical Department Study: T-6295.10 Analytical Report: FACT TOX-099 LRN-U2400 Study Title Oral (Stomach Tube) Developmental Toxicity Study of PFOS in Rabbits Analytical Laboratory Report Title Determination of the Concentration of Potassium Perfluorooctanesulfonate (PFOS) Fluorochemical in Rabbit Liver and Serum Specimens Data Requirement Not Applicable Author 3M Environmental Laboratory Analytical Phase Completion Date at signing Performing Laboratories Liver and Serum Extractions Liver and Serum Analyses Pace Analytical Services, Inc.

BACK TO MAIN SRPT REPORT DETERMINATION OF THE PARTITION COEFFICIENT (N-OCTANOL/WATER) OF T-5874 BY HIGH PERFORMANCE L I Q U I D CHROMATOGRAPHY (HPLC) -.-.

3M Medical Department Study: T-6295.4 Analytical Report: FACT TOX-002 LRN-U2121 Study Title 104-Week Dietary Chronic Toxicity Study with Perfluorooctane Sulfonic Acid Potassium Salt (PFOS T-6295) in Rats (Covance Study No.: 6329-183) Analytical Laboratory Report Title Determination of the Presence and Concentration of Perfluorooctanesulfonate (PFOS) in Liver and Serum Specimens of Crl:CD(SD) IGS BR Rats Exposed to Perfluorooctane Sulfonic Acid Potassium Salt (PFOS T-6295) Data Requirement Not Applicable Author 3M Environmental Laboratory Study Completion Date At signing Performing Laboratories Liver and Serum Analyses 3M Environmental Laboratory Building 2-3E-09, 935 Bush Avenue St.

: SSeher LsararMyVici.keePbDreitra,MmD, MPH MinDepartment AM vem 73S M05Co0meP M5r,2NB2S.5u3, 33k2C220t0 0o28g02 57T35S8 ORMe DAoTcTuNm:enSt Preocecs(scit)ngCCoieonrtdoeinra(nt7o4r07) OUfSfiEcnevoifroPonlmleunttiaonl,PPrortecetivoneAnagnetdnTcioyxoicns 401 MStreeStW, `Washington,D.C. 20460 FRel:uoTrSocChAem8i(cea)lsSu-pDpolcekmeenttNaulmNboetircse8fEoHrQS-u1l1fo8n0a-t3e7-3b;asSeEdaHnQ-d1C1a8r0b-o3x7yl4i;c8-bEaHsQc-d03810394; SEHQ-0598-373 Dear Docket Coordinator: r`eWliatthetdhtiosplertetveri,o3uMsTisSpCrAoSveicdtiinogfni8n(al)renpootirftiscaatnidoonst.hAerlsluopfptlheemeentnalcinlfiootrmesamtseiaordne: ahlorweeavdeyri,ntEhaPtAp'lsacpionsgstehsessioeintaenmdsaivnaitlheabl(eei)ndToSckCeAtmDaoycakleltoAwRf-o2r2m6o.rWeceobnevleineivee,nt accessto informationdirectlyrelatedtoprevious(c)notificationsby 3M.

AR226-1982 CC; H.

AR226-2356 "Steve Williams" <steve.willlams@epa.state.oh.us> on 01/27/200410:17:55 AM To: cc: Subject: Andrew S Hartten/AE/DuPont DuPont "Michael Preston' <michael.preston@epa.state.oh.us> Re: Draft Surface Soil Procedure Andrew, I looked over the draft soil/biota sampling procedure and have a few questions/comments.

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BACKGROUND AR226-2412 JL^(^* WHAT IS C-8?

AR226-2424 LETART LANDFILL 6ROUNDHATER HONITORINg - SUMMARY Of PC-143* ANALYTICAL RESULTS Sample location Upper Pond Lower Pond Upper Pond Lower Pond Well 1 Well 2A Well 3 Well 3A Wen 4 WeU 5A WeU 5B WeU 8 Upper Pond Lower Pond Upper Pond Lower Pond Well SB Well 5A Well 4 Well 5A Duplicate Upper Pond Lower Pond Well 3 WeU 3A Well 7 Well 1 Well 8 Well 8 Duplicate Well 6 Well 2A Trip Blank Date^Sampled 1/18/91 1/18/91 2/8/91 2/8/91 3/22/91 3/22/91 3/22/91 3/22/91 3/22/91 3/22/91 3/22/91 3/22/91 3/22/91 3/22/91 4/26/91 4/26/91 *11/22/91** 11/22/91 11/22/91 11/22/91 11/22/91 11/22/91 11/22/91 11/22/91 11/22/91 11/22/91 11/22/91 11/22/91 11/22/91 11/22/91 11/22/91 FC-143 Result (ug/1) 2,900 1.200 2300 400 60 50 390 380 690 1.6 340 25 500. 340 930 670 380 0.8 830 0.9 790 1,000 1,000 350 O.I 68 280 280 24 63 0,1 * FC-143 Is anrooniua perfluorooGtanoate Ionic surfactant & ** Analyses ptsrforeed bys CHzM mn Quality Analytical Laboratories 2567 Fairlane Avenue Montgomery, AIL 36116 Method Detection UaH O.I ug/1 | Other analyses performed bys Du POnt Experimental Station 141 N Henry Clay Road wnrotngton. 06 19880-0301 Method Detection Unrit 1.0 ug/1 o g 1/31/92 <ji hews 1023 EID1162B4

AR226-2580 Division of Water Resources 1201 Greenbner Street Charleston, WV 25311-1088 Telephone Number: (304) 558-2107 Fax Number: (304) 558-5905 West Virginia Department of Environmental Protection Bob Wise Governor Michael 0.

AR226-2627 15 AR226-2627 RESULTS OF C8 SAHPLES PROM Dg'IH J993 5BOmro QATES SAMPLES ON THE SITE, Sample poinc C8 ia ppb ^fT-^^ -^/-2/ (r3 A B ff6 A B C D ?

a BLEEIVED ARR&E. 272] the society of the plastics industry, inc 1667 K st. ow _-- Washer 0020008160 Tavera 5200 202.206.7008 or lca 2= 72. 2= = OSJUN3D PM 1:5) Via Courier FEtp-asos=16079 TSCA Confidential Business Information Center (7407 M) EUP.SA.

Copies to: Material Tested E.

CCR Cytotest Cell Research GmbH & Co.

AR226-3048 Study Title Approximate Lethal Dose (ALD) of H-21951 in Rats Laboratory Project ID Haskell Laboratory Report No. 796-96 Author Tracy A.