Jean B.

Precise Research.

3M ENVIRONMENTAL LABORATORY REPORT NO.

SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER: 244435 Prepared For: Weston Solutions, Inc. 1400 Weston Way Building 5-2 West Chester, PA 19380-1499 Project: Confidential Decatur - FC Investigation Attention: Jai Kesari Date: 03/06/2006 Signature Name: Richard C.

C o n stru ctio n Materials Engineering ami Testing g E n vironm ental Engineering and Consulting G eotechnical Engineering m Analytical Sen dees m TRANSMITTAL TO: Weston Solutions, Inc._________ __ DATE: March 23. 2005______ P.O.

ARSL6- 0723* ACUTE TOXICITY TO FISH (RAINBOW TROUT) TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203. (1Octanesulfonic acid) (CAS # 2795-39-3).

M &SL& - 0 7 lf-lh TO XIC ITY TO AQUATIC PLANTS TEST SUBSTANCE_______________________________________________ Identity: A mixture containing perfluorooctanesulfonate; may also be referred to as PFOS, FC-95, or as a component of FC-203C and L-5440. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, CAS # 2795-39-3) Rem arks: The 3M production lot number was not noted.

-^ 226-/607 From Barnard J *% 0 tQOOfcOOl 08:19 AM To rwily_bemfeOhemwl.oom cc rmratHy Q 6H > r*c nat aaipaCtthafoliogroup com. ]matzvHrningtontrutcorn Subject Oct 20 Hi Bern, Foggy beginning of the day here, but pretty good weather predicted, mom and I going to Lancashire later today for dinner, Joe's folks coming down, I am sure we can find some project to chip away at. certain I need to shorten the hot water line to the sink and midbath, could be easy or a bitch depending on luck.

9M61-O200 - 373 Single-dose Intravenous Pharmacokinetic Study of T-6246 in Rabbits In-Vivo Study Reference Number: HW I#6329-159 Study Number: AMDT-042095.1 Test Substance: FC-95 (T-6246) Name and Address of Sponsor: 3M SCD Division 3 6 7 Grove Street St.

MINNESOTA POLLUTION CONTROL ACISNCY D iv isio n o f S o lid Waste Enforcement S ection S ta tu s o f In v e s tig a tiv e Study R e la tin g to an I n d u s t r i a l W aste Dump in O ak d ale, M in n eso ta O ctober ?

r PUBLIC COPY October 30,2007 Via Federal Express Document Processing Center (Mail Code 7407M) Room 6428 Attention: 8(e) Coordinator Office of Pollution Prevention and Toxics U.S.

Australian Government Departmen( of Industry, Innovation and Science Nal Measurement Institute Proficiency Test Report AQA 16-06 PFOS/PFOA IN FISH, SOIL AND WATER 6 US00002590 US00002591 ACKNOWLEDGMENTS This study was conducted by the National Measurement Institute (NMI).

From: To: Sent: Subject: Attachments: Hunstad, Mary P CIV NAVSEA HQ, SEA 05 Fletcher, Steven G CIV NAVSEA HQ, SEA 05; Berkoski, Daniel T CIV NAVSEA, SEA 05 2/8/2017 6:13:15 PM RE: Updated GAO Answers GAO 100947 - AFFF Questions Rev1 sgf (3)JLW Mary.docx My changes.

Withheld in Entirety US00005038

From: To: CC: Sent: Subject: Attachments: Hunstad, Mary P CIV NAVSEA HQ, SEA 05 Cosgrove, Michael P.