FINAL REPORT Epidemiology, 220-3W-05 Medical Department 3M Company St.

AR226-2010 C-8 BLOOD DATA (WASHINGTON WORKS) STATUS OF EMPLOYEES AS OF: ^0.5 PPM ^ 1.0 PPM ^ 5.0 PPM ^ 10 PPM >10 PPM BASE DATA 1984-1986 (108 PEOPLE) 22% (24) < 67% 92% 97% 3% (73) (100) (105) (3) 1987 (31 PEOPLE) 1988 (28 PEOPLE) 1987-1988 COMBXNED (58 PEOPLE) 1989 (41 PEOPLE) 26% (8)' 43 (12) 34% (20) 34% (14) 39% 87% 97% 3% (12) (27) (30) (1) 61% 93% 100% 0% (17) (26) (28) 50% 90% 100% 0% (29) (52) (58) 59% 83% 98% 2% (23) (34) (40) (1) 0 THIS DATA IS ONLY USEFUL TO PROVIDE A GENERAL OVERVIEW (A SNAPSHOT IM TIME). 0 NOT USEFUL FOR TRENDS BECAUSE OF PEOPLE MOVEMENT, AND THE COMPOSITION OF PEOPLE TESTED CHANGES EACH YEAR, H.

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Comments Regarding the Health Effects Documents for Perfluorooctanoic Acid (PFOA) and Perfluorooctane Sulfonate (PFOS) Prepared on behalf of 3M I-94 and McKnight Road St.

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ST-310 ToxDocs 10-195 TOXICOLOGY ASSESSMENT AND COMPLIANCE ASSURANCE GROUP 3M COMPANY 10-195: ORAL STUDY OF MTDID 208 AND MTDID 1004 IN MALE RATS FINAL REPORT ToxDocs Study Number 10-195 Test Material MTDID 208 Lot Number(s) MTDID 1004 217 (MTDID 208) Strategic Tox Lab Study Number | 332 (MTDID ST-310 1004) Other Identification Number(s) | K'PFOS (MTDID 208) NH;"PFOA (MTDID 1004) 19F/TH-NMR GID Number Analytical Report | See Appendices 1 & 2 for Certificate of Analysis Study Director Jill Hart, AAS, LATg Laboratory Administrator Principle Investigator: (Study Monitor) John Butenhoff, Ph.D, DABT, CIH Corporate Scientist Testing Facility Tn-Life Start Date 3M Strategic Toxicology Laboratory 3M Center, Bldg 270, room SB314 Saint Paul, MN 55144 August 4, 2010 Tn-Life Termination Date October 4, 2010 Tof14 ST-310 "ToxDocs 10-195 TOXICOLOGY ASSESSMENT AND COMPLIANCE ASSURANCE GROUP 3M COMPANY 10-195: ORAL STUDY OF MTDID 208 AND MTDID 1004 IN MALE RATS Compliance Statement and Signature Page `This study was conducted to regulatory guidelines.

DATA SUMMARY REPORT 2012 DATA SUMMARY REPORT MISSISSIPPI RIVER - POOL 2 AND ADJACENT LOCATIONS Prepared for Brewer Attorneys and Counselors Dallas, Texas Prepared by Anchor QEA, LLC 4300 Route 50, Suite 202 Saratoga Springs, New York 12866 April 2016 2012 DATA SUMMARY REPORT MISSISSIPPI RIVER - POOL 2 AND ADJACENT LOCATIONS Prepared for Brewer Attorneys and Counselors Dallas, Texas Prepared by Anchor QEA, LLC 4300 Route 50, Suite 202 Saratoga Springs, New York 12866 April 2016 TABLE OF CONTENTS 1 INTRODUCTION ................................................................................................................1 2 METHODS ...........................................................................................................................2 2.1 Water Sample Locations ..................................................................................................2 2.2 Water Sampling................................................................................................................2 2.2.1 Water Sampling Procedures ......................................................................................2 2.2.2 Laboratory Analyses ...................................................................................................3 2.3 Quality Assurance/Quality Control ................................................................................3 3 RESULTS ..............................................................................................................................4 3.1 Mississippi River Flow .....................................................................................................4 3.2 Analytical Results.............................................................................................................4 3.3 Data Validation.................................................................................................................4 3.4 Laboratory Data Reports ..................................................................................................4 4 REFERENCES ......................................................................................................................5 List of Tables Table 1 Summary of Sampling Locations Table 2 2012 Surface Water Results List of Figures Figure 1 Locations of 2012 Surface Water Samples Figure 2 Mississippi Hydrograph with Sampling Events List of Appendices Appendix A Data Validation Reports 2012 Data Summary Report Mississippi River - Pool 2 i April 2016 160945-01.02 ACRONYMS AND ABBREVIATIONS Anchor QEA Anchor QEA, LLC cfs cubic feet per second DSR Data Summary Report PFAS perfluoroalkyl substance PFBA Perfluorobutanoate PFBS Perfluorobutanesulfonate PFDA Perfluorodecanoate PFDoA Perfluorododecanoate PFHpA Perfluoroheptanoate PFHxA Perfluorohexanoate PFHxS Perfluorohexanesulfonate PFNA Perfluorononanoate PFOA Perfluorooctanoate PFOS Perfluorooctanesulfonate PFOSA Perfluorooctane sulfonamide PFPeA Perfluoropentanoate PFUnA Perfluoroundecanoate QA/QC quality assurance/quality control QAPP Quality Assurance Project Plan SAP Sampling and Analysis Plan USGS United States Geological Survey 2012 Data Summary Report Mississippi River - Pool 2 i April 2016 160945-01.02 1 INTRODUCTION This Data Summary Report (DSR) has been developed by Anchor QEA, LLC, on behalf of Brewer Attorneys and Counselors, to present the results of sampling and analysis activities performed to measure the water concentrations of perfluoroalkyl substances (PFASs) in Pool 2 of the Mississippi River in 2012 and additional nearby locations as documented in the 2012 Sampling and Analysis Plan (SAP; Anchor QEA 2012).

Attention: Docket Number EPA-HQ-OW-2014-0138 April 28,2014 We appreciate the opportunity to comment on the draft "Health Effects Document for Perfluorooctane Sulfonate (PFOS)".

"McCrea, Deborah" <mccrea@taftlaw .com> 01/21/2010 02 :58 PM To NCIC OPPT@EPA cc "Bilott, Robert A."

p. 1 PERFLUORINATED ORGANIC S ANALYSIS AQUEOUS SAMPLES AXYS METHOD: MLA-040 Contract .- REDACTE D Data Package Identification : DPWG20231 Analysis WG2011 2 Prepared for.

ST311 ToxDocs 10-196 TOXICOLOGY ASSESSMENT AND COMPLIANCE ASSURANCE GROUP 3M COMPANY 10-196: ORAL STUDY OF MTDID 208 AND MTDID 1004 IN MALE RATS FINAL REPORT ToxDoes Study Number 10-196 Test Material MTDID 208 MTDID 1004 Lot Number(s) 217 (MTDID 208) 332 (MTDID 1004) Strategic Tox Lab Study Number| ST-311 Other Identification Number(s) | K PFOS (MTDID 208) NH:PFOA (MTDID 1004) T9F/TH-NMR Analytical Report| See Appendices | & 2 for Certificate GID Number ofAnalysis Study Director Jill Hart, AAS, LATg Laboratory Administrator Principle Investigator: (Study Monitor) John Butenhoff, Ph.D., DABT, CIH Corporate Scientist Testing Facility 3M Strategic Toxicology Laboratory 3M Center, Bldg 270, room SB314 Saint Paul, MN 55144 Tn-Life Termination Date fAuguest 13, 2010 Tof14 ST-311 "ToxDocs 10-196 TOXICOLOGY ASSESSMENT AND COMPLIANCE ASSURANCE GROUP 3M COMPANY 10-196: ORAL STUDY OF MTDID 208 AND MTDID 1004 IN MALE RATS Compliance Statement and Signature Page `This study was conducted for research and development purposes and does not conform to regulatory guidelines.

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Medical Department 3M Center, 220-6W-08 St.

MUTAGENICITY EVALUATION OF T-2014 CoC IN THE AMES -SALMORErU/MICROSOME PLATE T-EST FINAL REPORT SUBMITTED TO: 3M COMPANY 3M CENTER SAINT PAUL, MINNESOTA 55101 BIONETICS L'ttm SUBMITTED BY: LITTON BIONETICS, INC. 5Sl6 NICHOLSON LANE KENSINGTON, MARYLAND 20795 LBI PROJECT NO. 20838 FEBRUARY 1978 I ii.