News release: Low levels of PFBA found in six cities' wells in southeast metropolitan area P ;PgJ I of 4 ~<222(_ ~ 7.50 4;V~ '~ . ~.,:, < . .

E054210 Interim Re ort #I8 Notthem Alabama Potable Water Systems, Decemger 2005 Interim Report #18: Analysis of Water Samples from Northern Alabama Potable Water Systems, December 2005 Study Title ANALYSIOSF PERFLUOROBUTANESULFON(PAFTBES), PERFLUOROHEXANESULFONATE (PFHS), AND PERFLUOROOCTANESULFONATE (PFOS) IN WATER, SOIL, SEDIMENT, FISH, CLAMS, VEGETATION, SMALL MAMMALIVER AND SMALL MAMMASLERUM USING LC/MS/MS FOR THE 3M DECATURMONITORINGPROGRAM Data Requirement EPA TSCA Good Laboratory Practice Standards 40 CFR 792 Author Michelle D.

TSCA SANITIZED p. 1 A~~ W lesearcti ab:omtories _ ... . . ~-~:. d P:O:.BiDx,178 :Spinrle~s~botiy~; PA;1~968 -ph'~e'~ti4~.~-41:10 fa9t'(215):6364818 Study T146 :: Test .Articlo : -Positive Control : Vehtcte : Author Study Completed.

3M General Offices 3M Center p. 1 St.

AR226-3160 TRADE SECRET Study Title H-23925: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Laboratory Project ID: DuPont-2921 AUTHOR: Carol Finlay, B.A.

M326 -- 3262 " 125231:OneGeneration Reproduction Stody in ats #R2a6 _ 3263 Duron: 9763 `TRADE SECRET Study Title 'H-25231: One-Generation Reproduction Study in Rats Volume 1 of3 `Laboratory Project ID: DuPont-9763 AUTHOR: Eve Mylchreest, Ph.D

Society of Environmental Toxicology & Chemistry Summary of DuPont Presentations AR226-3348 SETAC North America November, Austin, TX Development of analytical methodology for determination of Telomer B alcohols, nonionic fluorosurfactants, and polymers.

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ACUTE TOXICITY TO AQUATIC PLANTS (ALGAE) TEST SUBSTANCE Identity:Perfulorooctanesulfonylamido(ethyla)cetate;may also be referredtoas PFOSAA, FC-1 28 or as the major component of FC-127, FC-1 29, FC-1 09, FC-1 09-X or Rl 904.

ACUTE TOXICITY TO AQUATIC INVERTEBRATES TEST SUB-STANCE (DAPHNIA MAGNA) Identity:Mixturecontainingperfluorooctanesulfonatwehich may also be referredtoas PFOS, FC-95, or as a component of FC-203FC. (1Octanesulfoniaccid)(CAS # 2795-39-3).

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredto as PFOS, FC-95, or as a component of FC-206A. (1Octanesulfoniaccid)(CAS # 2795-39-3).

TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatmea;y alsobe referredto as PFOS, FC-95, or as a component of FC-206CF or FC-206CF-X. (1-Octanesulfoniacid)(CAS # 2795-39-3).

ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity:A mixturecontainingperfluorcoctanesulfonatweh,ich may also be referredtoas PFOS, FC-95, or as a component ofFC-600. (1-Octanesulfoniaccid,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-p,otassium salt,CAS # 2795-39-3) Remarks: The 3M productionlotnumber was Belgium 2367.

ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredto as PFOS, FC-95, oras a component of FX-3106. (1Octanesulfoniaccid)(CAS # 2795-39-3).

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