b4> NOTE TO FILE - OPPTS 50639 October 23, 2000 FROM: Karen Lannon SUBJECT: Revised PFOS Hazard Assessment M S A 6 _ 03lf-& Attached is a revised PFOS Hazard Assessment.

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-Pt({ Jl SlQ _ /// -teosc,^ UNITED STATES EN VIRO NM EN TAL PROTECTION AGENCY WASHINGTON D.C., 20460 September 5, 2002 OFFICE 0F PREVENTION, PESTICIDES AND TOXIC SUBSTANCES Mr.

Iif i 3M Study Title A n a l y s is o f e n d o g e n o u s F l u o r o c h e m ic a l s in No r m a l P o o l e d H u m a n S e r u m a n d Plasma Data Requirement 40 CFR Part 792 Author Mark E.

0m DuPont Engineering I February 5, 2003 AR226-1415 DuPont Engineering Barley Mill Plaza - Bldg. 27 Lancaster Pike & Rte. 141 Wilmington, DE 19805 David P.

AR226-1486 ENVIRONMENTAL AND HEALTH ASSESSMENT OF PERFLUOROOCTANE SULFONIC ACID AND ITS SALTS August 20, 2003 Prepared by 3M in consultation with Jack Moore, D.V.M., DABT, Hollyhouse, Inc.

Interim Report #2 Epidemiology, 220-3W-05 Medical Department 3M Company St.

BACK TO MAIN 3M FLUOROCHEMICAL SUBMISSION TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE April 2005 Click on Study Title to View Report April 18, 2005 John L.

Sponsor: 3M St.

NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 606-331-2838 513-381-2838 FAX: 513-381-6613 DAYTON, OHIO OFFICE SUITE 900 Pi 110 NORTH MAIN STREET DAYTON, OHIO 45402-1786 937-228-2838 FAX: 937-228-2816 Ro b e r ta .

AXYS METHOD MLA-031 Rev 01 ptnc m F orm 1A/2 "" PERFLUORINATED SURFACTANT ANALYSIS REPORT CLIENT ID: Sample C ol taction: 22-NOV-2004 12:20 Lab Ham*: AXYS ANALYTICAL SERVICES Contract No.: 4191 Matrix: W ATER Semple Receipt Date: Extraction Date: Analysis Date: 25-NOV-20Q4 02-Dec-2004 03-Dec-2004 T in : 20:37:58 Extract Volume (mL): 2 Injection Volume (pL): 10.0 Dilution Factor: N/A Project Name: NSA Lab Sample ID: L7411-1 (A) Sample Size: 500 mL Initial Calibration Date: O3-D0C-2OO4 Instrument IO: LC-M S/M S LC Column ID: D iscovery C18 Sample Datafile: PFS4G_110S23 Blank Data Filename: PFS4G JI10S20 Cal.

Washington Works MH ao N >OB4 O EPA/COE Update Meeting M y 18, 2002 AR226-2552 EID781150 Agenda Background/Recent Project Activity --RCRA Program Status --Multi-Media Consent Order Update --GW Modeling Project Review Preliminary GW Modeling Results RCRA Program Path Forward --RFI Report/EPA Review --El Status Meeting Objectives Provide brief overview o f recent MMCO activity at Washington Works Re-assess where we stand with regard to EPA Region III RCRA program, determine next steps (i.e., RFI, E.I.s) Receive technical feedback from EPA/COE on the newly constructed Wash Works GW Flow Model Background/Recent Activity RCRA Program Status - EPA reviewing RFI report --C-8 screening levels needed for completion - El evaluation also on hold pending C-8 screening levels --Ongoing GW Modeling project will address EPA/COE 2001 comments on 1999/RFI version o f GW Model 1in0 cn 8Z0HSV Background/Recent Activity mH saow j Multi-media Consent Order (WVDEP) Required Elements: - Toxicology/CAT: Develop RBC-Like screening levels for dw, soil, and air - GW/SW Investigation/GIST: Determine extent in groundwater & surface water at/near sites - Cap/reduce emissions to air & sw EID781154 CAT Highlights Toxicology team met May 5-7.

AR226-3185 DuPont-4739 TRADE SECRET Study Title with OneH9-G0-2-eD4n6ae1yra6Gt:ioSanvuabRgceehprSrootnudidcuycTtiionoxnRicEaittvsyaluations Volume 2 of 5 Laboratory Project ID: DuPont-4739 Te st G u id e l in e s: OUP.SP.TESPA87H0.e3a1l0th0E(1ff9e9c8ts) Test Guidelines Author: Don A.

3M 3M Corporate Toxicology and Regulatory Services 3M Center, Building 0220-06-E-03 St.

P-1 COMPANY SANITIZED - Does not contain TSCA Confidential Business Information (CBI) DAUUN AZza _ 3730 fi o>2 <> DAIKIN AMERICA, INC. 905 State Docks Road (35601) P.O.