P-1 "M cC rea, Deborah" < m ccrea@ taftlaw .co m > 0 8 /2 1 /2 0 0 9 10:52 AM To N C IC O P P T @ E P A cc "Bilott, R obert A." < bilott@ taftlaw .com > bcc S ubject 0 8 /2 1 /2 0 0 9 Letter To E PA D ocket C enter P tL X ^ -^ a i Taft/ Deborah McCrea / Legal Assistant Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1800 Cincinnati, Ohio 45202-3957 Tel: 513.381.2838 Fax: 513.381.0205 www.taftlaw.com / mccrea@taftlaw.com o 7cz cn ro o o PO Internal Revenue Service Circular 230 Disclosure: As provided for in Treasury regulations, advice (if any) relating to federal taxes that is contained in this communication (including attachments) is not intended or written to be used, and cannot be used, for the purpose of (1) avoiding penalties under the Internal Revenue Code or (2) promoting, marketing or recommending to another party any transaction or matter addressed herein.

TSCA NCIC Notification Form for CB!

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ORIGINA DOCS NOT CONTAIN CBI 3325^ DuPont Haskell Global Centers for Health and Environmental Sciences 1090 Elkton Road, P.O.

ORIGINAL DOCS NOT CONTAIN CBI 3 3 9 ^ 2 -0 October 29, 2010 DuPont Haskell Global Centers for Health and Environmental Sciences 1090 Elkton Road, P.O.

From: To: CC: Sent: Subject: Attachments: Hunstad, Mary P CIV NAVSEA HQ, SEA 05 Willey, Janice L CIV SEA04X, LQAO; Adelson, Jordan M CIV SEA04X, LQAO Corl III, William E CIV Chemist, LQAO, C1198; Fletcher, Steven G CIV NAVSEA HQ, SEA 05; Berkoski, Daniel T CIV NAVSEA, SEA 05 1/17/2017 2:46:42 PM Ausrailian Lab Proficiency Report NMI Proficiency report 2016 - PFOS & PFOA lab sampling-AQA16-06.pdf Jordan/Janice - Sending for info, you may already have it.

From: To: CC: Sent: Subject: John P.

Withheld in Entirety US00005737

Dear Mr.

Case: 2:13-md-02433-EAS-EPD Doc #: 3441-11 Filed: 05/15/15 Page: 1 of 29 PAGEID #: 61279 EXHIBIT K Case: 2:13-md-02433-EAS-EPD Doc #: 3441-11 Filed: 05/15/15 Page: 2 of 29 PAGEID #: 61280 IN THE UNITED STATES DISTRICT COURT SOUTHERN DISTRICT OF OHIO EASTERN DIVISION IN RE: E.I.

3M Medical Department Study: T-6295.10 AR226-1030A003 BACK TO MAIN 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.

AR226-1030A027 Study Title Characterization Study of PFOS, Primary Standard - Test Control Reference #TCR-00017-046 Phase: Solubility of PFOS in Octanol Data Requirement 40 CFR 160.105(b) Author Mark E.