ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS #2795-39-3) Remarks: The test substance is a white powder.

A W # - a -if ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: Perfluorooctanesulfonate, Lithium salt; may also be referred to as PFOS Li salt, FC-94, or FC-94-X. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, lithium salt, CAS #29457-72-5) Remarks: The test sample is a mixture of the test substance in water (approximately 24.5% test substance and 75.5% water).

STUDY CODE : K01-1802 A R 1 2 S -O I3 C Receipt No.

Internal Correspondence in Ij* Clair Murphy - 116-1 - 01-064 Tom Pietrs - 22-1 - 01/064 I'-'^ Dean Dworak - 41-1 - 01/064 Cliff Ruschmeyer - 116-1 - 01/064 John Pilney - 47-1 - 01/064 Tom Christ - 110-1 - 01/064 Gordon Weum - 47-1 - 01/064 TO: Glenn Damerell - 70-1-01 - 01/064 From: Larry R.

3M General Offices >p 3M March 17, 2000 3M Center St.

AR *6 - TO XICITY TO AQUATIC PLANTS TEST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-3017. (1Octanesulfonic acid) (CAS # 2795-39-3).

f o r m 8 7 4 7 -1 1-A ORIGINAL TECHNICAL REPORT SUMMARY TO: T E C H N IC A L C O M M U N IC A T IO N S CEN TER - 201-2CN ,im portant -- If report is prin ted on both sides o f paper, send two copies to T C C J O ivision CRL - Analytical and Properties Research Laboratory Project Trace Fluorochemicals in the Environment R eport Titla ~* -- IRDC 137-092: FC-95/Monkey To J.

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1 JJuullyy 3300,,22001122 `Probable Link EvaluationofAutoimmune Disease Probable Link Evaluation of Autoimmune Disease `CCoonncclluussiioonn: OOnn tthhee bbaassiiss ooff eeppiiddeemmioiollooggiiccaall and and other other dala data available available to to the the C8 C8 Science Science Panel, Panel, wwee ccoonncclluuddee tthhaat ulcerative colt, tthheerree iiss and find aa pprroobbaabbllee lliinnkk bbeettwweeeenn exposure exposure to to no probable ink between PFOA and C8 (also Can8y(aoflstohe known kontohwenr as PFOA) and aasutPoFiOmAm)unaend issases (theumatoid artis, lupus, ype diabetes,Cronn's disease,of multiple sclerosis). ulcerative colitis, and find no probable link between PFOA and any of the other autoimmune diseases (rheumatoid arthritis, lupus, type1 diabetes, Crohn's disease, or multiple sclerosis).

UUS.S..

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News release: Health officials move to protect more well owners in east metro from exposme to PFOS, PFOA 20DECaN C_ News and News and Announcements, Announcements oso Anpomats Home News and Announcements Home 018 evs es 2018 news releases Erma, 2017 news releases a 2016 news releases 2015 news releases a 2014 news releases Aion Audio Clips J Podcasts Petes Public Service porn Announcements Resoseoseopotas Resources for reporters Sern Information cuOfficers AUS2, 2018 NewsRelease News Release August 23, 201 CConoanctatcit nilnofomrimtaiteionn &OD, ConvolAgency MMiinnnneessoottaa PPoolllluuttiioonn Control Agency HHeeaalltthh ooffffiicciiaallss mmoovvee ttoo pprrootteecctt mmoorree wweellll oowwnneerrss iinn eeaasstt mmeettrroo from exposure to PFOS, PFOA from exp ure to PFOS, PFOA Ey homes in ssher Washington Countiyl bin cainbot waar soon Eighty homes in southern Washington County will begin receiving bottled water soon because herwlver exceedsan updated eda aahadr ove for because their well water exceeds an updated federal health advisory level for peruorcoctans sulfonate (PF0S) andpron octano acid (FOwoRtype)s of perfluorooctane sulfonate (PFOS) and perfluoro-octanoic acid (PFOA) - two types of manmade pokartsin category known as errr (PFC) heyso man-made pollutants in a category known as perfluorochemicals (PFCs).