Rl%-433 C O R N IN G Hazleton MUTAGENICITY TEST ON T-6342 MEASURING CHROMOSOME ABERRATIONS IN HUMAN WHOLE BLOOD LYMPHOCYTES WITH A CONFIRMATORY ASSAY WITH MULTIPLE HARVESTS FINAL REPORT AUTHOR Hemalatha Murli, Ph.D.

Internal Correspondence AfttlrO M81 rt V To: P .

SOIL ADSORPTION TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, PFO, FC-116, FC-126, FC-169, or FC-143.

BIOACCUMULATION (ANALYTICAL ONLY) TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, FC-116, FC-126, FC-169, or FC-143.

3M General Offices 3M Center St.

ALO Jt-l& l Toxicological Summary PFOS Dietary Acute Mallard Study Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 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 Remarks: The test substance is a white powder (3M lot #217).

HASKELL LABORATORY FOR TOXICOLOGY AND INDUSTRIAL MEDICINE / cc: G.

8-2 Telomer B Alcohol: Developmental Toxicity Study in Rats TRADE SECRET DuPont-10157 AR226-1939 Study Title 8-2 Telomer B Alcohol: Developmental Toxicity Study in Rats Laboratory Project ID: DuPont-10157 RECEIVED OPPT NCIC 2005 MAR -4 PM 12:01 Test Gu id elin es: United States (U.S.)

A R 2 2 6 -2 0 6 8 VW SAFETY, HEALTH AND ENVIRONMENTAL C8 AMMONIUM PERFLUORO-OCTANOATE FC--1 43 ANIONIC FLUOROCHEMICAL SURFACTANT MGF by 3M COMPANY v -5 o DuPONT AEL: 0 .01 m g /M 3 (0 .5 6 ppb, 8 hr TWA) o IRRITANT via INHALATION.

AR226-2158 { / ?

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

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AR226-2275 Robert F P inchot 04/23/2002 08:14 AM To: George H Senkler_Jr/AE/DuPont@ DuPont cc: Subject: Final Modeling Report G e o rg e , Here is the modeling report.

AR226-2294 DRAFT 3 ( DuPont Statement on January 7, 2003, Letter from Ohio EPA Regarding "Air impacts in Ohio due to emissions of C8" In a January 7, 2003, letter to Paul Bossert, Plant Manager at DuPont Washington Works, Ohio EPA Director Christopher Jones refers to "concern over ambient levels of C8, as predicted by air quality modeling of year 2000 actual emissions."

AR226-2548 RCRA FACILITY INVESTIGATION REPORT DUPONT WASHINGTON WORKS WASHINGTON, WEST VIRGINIA JUNE 30,1999 Project No. 0D6W7205 ASH000246 Prepared by <90B& v C O R P O R A T E REM ED IA TIO N G R O U P An Alliance between DuPont and The W-C Diamond Group Barley Mill Plaza, Building 27 Wilmington, Delaware 19880-0027 EID090342 III I } I t^OOOHSV !