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HECYCLEO 05 AR226-2656 AR226-2656 ISC Modeling Methodology and Results Introduction This report summarizes dispersion modeling that was completed for the DuPont Washington Works facility to demonstrate that the emission limits included in the form R13 permits (815E, 1353B, 1953B, and 2365C) comply with the C-8 assessment o f toxicity (CAT) recommended airborne screening level of 1.0 ug/m3 at the property line fence.

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AR226-3145 DuPont-4002 HASKELALNLDAIBNODRUASTTORRIAYLFMOERDTICOIXNIECOLOGY H-24390: STATIC, ATOCUDTaEph4n8ia-HmOaUgnRaSCREENING TEST PURPOSE: This is a rangefmding study designed to provide an estimate of aquatic toxicity using fixed test concentrations and data measurements at predetermined intervals.

437 TRADE SECRET 4*SU_ 3LT DuPont- 11269 Study Title H-25357: Oral Approximate Lethal Dose (ALD) in Rats Laboratory Project ID: DuPont-11269 A u t h o r : Carol Finlay, B.A.

AR ff.s.6_ OGSG POSF Ongoing- ( 000279 06/22/00 T-7098.1 POSFPK PHARMACOKINETIC STUDY OF POSF IN RATS - STUDY OUTLINE Study Objective: The objective o f this study is to assess the potential for oral absorption, urinary and fecal clearance and biological persistence o f perfluorooctane sulfonyl fluoride (POSF) in male Sprague Dawley rats after a single oral dose.

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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.

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 likely to have negative implications regarding cardiovascular disease and mortality.

STATE OF MINNESOTA COUNTY OF HENNEPIN DISTRICT COURT FOURTH JUDICIAL DISTRICT State of Minnesota, by its Attorney General Lori Swanson, its Commissioner of Pollution Control Paul Aasen, and its Commissioner of Natural Resources Tom Landwehr, Case Type: Other Civil Civil File No. 27-CV-10-28862 Judge Margaret A.