BACK TO MAIN I Analysis of PFOS in Test Organisms from the 96-Hour Static Acute Toxicity Test with the Freshwater Mussel Laboratory Report No.

BACK TO MAIN ACTIVATED SLUDGE RESPIRATION INHIBITION TEST SUBSTANCE Identity: Perfluorooctanesulfonylamido(ethyl)acetate; may also be referred to as PFOSAA, FC-128 or as the major component of FC-127, FC-129, FC-109, FC-109-X, FC-4351, or L-6778.

BACK TO MAIN INHIBITORY EFFECTS OF L-13492 ON ACTIVATIED SLUDGE RESPIRATION ~ jIl REPORT COMPLETED: July 26,1995 Prepared by: SusrvlA.

BACK TO MAIN 3M Company Page 1 of 36 FINAL REPORT Epidemiology, 220-3W-05 Medical Department 3M Company St.

LABORATORY-SCALE THERMAL DEGRADATION OF PERFLUOROOCTANYL SULFONATE AND RELATED SUBSTANCES TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or C8F17SO3-K+. (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).

ACUTE TOXICITY TO BLUEGILL SUNFISH 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 (3M Lot 583) of uncharacterized purity.

-- CHARLAEBSORARTIORVIEERS Sponsor: 3M St.

ou Ae226- 191 D 3M MEDICAL DEPARTMENT, CORPORATE TOXICOLOGY Title: Comparative Molecular Biology of Perfluorooctanesulfonate (PFOS, T6295), N-ethyl perfluorooctanesulfonamido ethanol (N-EtFOSE, T-6316), N-Ethyl perfluorooctanesulfonamide (N-EtFOSA, T-6868),Perfluorooctanesulfonamido acetate (FOSAA, T-7071), and/or Perfluorooctanesulfonamide (FOSA, Rats and Guinea Pigs following Oral dosing.

, NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON, KEKTUCKY41011-1704 WE3314830 smai-283a FAX: 513-3Il1-8513 DAYTON, OHIO OFFICE SUITE 900 HO NORTH MAIN STREET DAYTON, OHIO 46402-1786 937~ZM-2B38 FAX: 037.22mm TAFT, STETTINIUS & HOLLISTER LLP 425 WALNUT STREET, SUITE 1800 CINCINNATI, OHIO 45202-3957 613-381-2838 FAX: 513-381-0206 www.taftlaw.com CLEVELAND, OHIO OFFICE 3600 BP TOWER 200 PUeLlC SQUARE CLEVELAND, OHIO 44114.2302 2l6-241-2836 FAX: 216-241-3707 COLUMBUS, OHIO OFFICE 21 EAST STATE STREET COLUMBUS, OHIO 43215422i 614-22%PUI FAXM4.221-2007 ROBERT A.

AR226-2155 Catherine A Barton j | a ^ ' g ^ ^ ^ ' s ^ ' s ^ s ^ ^ a ^ i a ^ s ' ' 06/27/2001 0334 PM To: cc: Subject: Debbie J Mulrooney/AE/DuPont@DuPont, Robert F Pinchot/DEV/AE/DuPont@DuPont Catherine A Barton/AE/DuPontDuPont Recap of our meeting Just so we're on the same page (and so I can remember what we said we'd do a week from now), I've summarized some notes from our meeting today.

AR226-2221 .

AR226-2238 Particle Scavenging Coefficient Estimation Atmospheric aerosol particles below the cloud line can be absorbed into rain droplets during precipitation events.

AR226-2323 Irene A Legiec 04/03/2003 10:40 AM To: Ann K Masse/HO/DuPontQDuPont cc: Mark D Richmond/AE/DuPont@DuPont, Catherine A Barton/AE/DuPont@DuPont, Richard S Vickery/AE/DuPontQDuPont, Maria S Angelo/AE/DuPont@DuPont, Paul J Gorzsas/AE/DuPontQDuPont Subject Re: Dispersion modeling data Q Ann, We have a ballpark number for influerrt data.

AR226-2494 Mil H123 nwryiinwr WHWVUMM 08/31/01 11:01 0:06/13 H0:150 ^ant <mi>i>i],r,',tek (/MP p.s.teiri?

AR226-2593 Mark Houlday 08/1S/2002 12:44:54 PM To: cc: Subject: Isidores J Zanikos/AE/DuPont@DuPont Andrew S Hartten/AE/DuPontQDuPont Washington Works Talking Points Izzy here are some topics that you may wish to discuss: GIST Meeting - went well.