The adequate disposal of hydrofluoric acid containing tars poses many problems.

Electronically Served 9/22/2017 10:33 PM Hennepin County, MN 27-CV-10-28862 Filed in Fourth Judicial District Court 11/17/2017 7:31 PM Hennepin County, MN STATE OF MINNESOTA DISTRICT COURT FOR THE COUNTY OF HENNEPIN FOURTH JUDICIAL DISTRICT CIVIL ACTION NO. 27-CV-10-28862 STATE OF MINNESOTA, et al. v. 3M COMPANY EXPERT REPORT OF PHILIPPE GRANDJEAN, MD, DMSc _________________________ PREPARED ON BEHALF OF PLAINTIFF STATE OF MINNESOTA 22 September, 2017 CONFIDENTIAL - SUBJECT TO A PROTECTIVE ORDER ENTERED IN HENNEPIN COUNTY DISTRICT COURT, NO. 27-CV-10-28862 27-CV-10-28862 Filed in Fourth Judicial District Court 11/17/2017 7:31 PM Hennepin County, MN TABLE OF CONTENTS I.

August 1,2003 VIA FEDERAL EXPRESS Document Control Office (DCO) Office of Pollution Prevention and Toxics (OPPT) US Environmental Protection Agency EPA East, Room 6428 1201 Constitution Avenue, MW Washington DC 20460 Attention: Docket No.

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Patented Aug. 24, 1948 2, 447,717 UNITED STATES PATENT OFFICE 2,447.717 FLUORINATION OF ORGANIC COMPOUNDS Joseph H.

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1975 Using a preconcentiation method and NMR, Guy and Taves report presence of organic fluorine compounds in blood bank blood from around the country (average concentration about 0.03 ppm OF, which corresponds to about 45 ppb PFOS).

Recommendat ion Regarding Fluorochemical Exposure to Females of Childbearing Potential Based on toxicology studies of selected fluorochemi^dls including teratology studies, the following recomp^ndatio*.- are made regarding work restrictions for femal g a ^ ^ c h ildbearxng potential.

E i^ io y e ^ Bulletin effective 05/16/2000 Page 1 of 2 View Next View Previous View All Employee Bulletins S 3 Employee Bulletin Date: 05/16/2000 3M Phasing Out Some of its Specialty Materials 3M will phase out of the perfluorooctanyl chemistry in certain repellents and surfactant products by the end of this year.

Megaphone February 2002 Volume 54, Number 2 A teamwork effort of the following: Communications Coordinator: Jeanie Severson Reporters: Judy Witt Support Services Mary Conroy, Fran Curtiss - Medical Rose Peine - SAC/SMD Mindy Bond - SMD/AD Gayle Carlin - Plant Eng.

CONFIDENTIAL Interoffice Correspondence cc: L.

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3MA00005401 1365.0001 f E x h ib it 1365 State of Minnesota v. 3M Co., Court File No. 27-CV-10-28862 1365.0002 3MA00005402 A Chemical History of 3M 1933 - 1990 Neil MacKay Published by The 3M Chemical, Film & Allied Products Group The Bureau of Engraving, Inc.

M T D National Toxicology Program U.S.

C hem olite Hazardous W aste M anifest Form 21172 C Name fA US DOT D ESC R IPTIO N ' Proper Shipping Name, Hazard Class, UN/NA No.