AR226-3135 TRADE SECRET Study Title H-24256: Local Lymph Node Assay (LLNA) Laboratory Project ID: DuPont-3548 AUTHOR: Gregory S.

AR226-3385 Subchronic, Developmental, and Reproductive Toxic Fluoroalkylethyl Phosphate Surfactant J.C.

PHOTODEGRADATION TEST SUBSTANCE Identity:Perfluorooctanesulfonatmea;y alsobe referredto as PFOS or FC-95. (1-Octanesulfonicacid,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: Testingisinprogress.

Bio/dynamics Inc.

Special Lens oral Teratology Study of T-2999CoC in Two Strains of Rats Experiment No.: Conducted At: Dosing Period: Study Directort 0681TR0362 Safety Evaluation Laboratory Riker Laboratories, Inc.

AOVANCEO BIOANALY71CAL SERVICES, INC.

Coming Hazleton Inc.

STUDY SUMMARY OF ENVIRONMENTAL AFFF AND COMPONENTS - 1991 EFFECTS OF LIGHT WATER BRAND TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may also be referredtoas PFOS, FC-95, or as a component ofFC-203. (1Octanesulfonicac7id()CAS # 2795-39-3).

BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity:A mixturecontainingperfluorooetanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component of FC-783. (1Octanesulfoniaccid)(CAS # 2795-39-3).

p. 1 ~~zzE ~ 3~zZ Off-site Sampling PFOA Concentrations I T- Sample ID Decatur, AL verage PFOA (ppb) Location in Relation to 3M Decatur Facility S il Samples DAL-SB-603R-0-0000 DAL-SB-603R-0-0005 DAL-SB-603R-0-0010 DAL-SB-603R-0-0050 DAL-SB-603R-0-0100 DAL-SB-603R-DB-0100 NR 4 .03 5.06 3.71 1 .275 0.963 Southwest DAL-SB-604R-0-0000 DAL-SB-604R-0-0005 DAL-SB-604R-0-0010 DAL-SB-604R-0-0050 DAL-SB-604R-0-0100 DAL-~SB-605R-0-0000 DAL-SB-605R-DB-0000 DAL-SB-605R-0-0005 DAL-SB-605R-0-0010 DAL-SB-605R-0-0050 DAL-SB-605R-0-0100 DAL-SB-138R-0-0000 DAL-SB-138R-0-0005 DAL-SB-138R-0-0010 DAL-SB-138R-0-0050 DAL-SB-138R-0-0100 DAL-SB-138R-DB-0100 DAL-SB-602R-0-0000 DAL-SB-602R-0-0005 DAL-SB-602R-0-0010 DAL-SB-602R-0-0050 DAL-SB-602R-0-0100 DAL-SB-601 R-0-0000 DAL-SB-601 R-DB-0000 DAL-SB-601 R-0-0005 DAL-SB-601 R-0-0010 DAL-SB-601 R-DB-0010 DAL-SB-601 R-0-0050 DAL-SB-601 R-0-0100 DAL-SB-601 R-DB-0100 2~29 3.75 1 .54 5.615 0.356 7.905 7.795 7.64 2 .985 1 .02 0 .8555 28 .35 53 44 .05 104 311 .5 308 .5 6 .345 6.82 3.635 0.72 0.613 1 .93 2.095 1 .89 NR 1 .905 1 .1575 0.4575 0.442 Groundwater Samples South East Eastern boundary of facility West West DAL-GW-138L-0-060411 DAL-GW-138R-0-060412 DAL-GW-138S-0-060412 0.232 NR NR Eastern boundary of facility DAL-GW-605R-0-060412 0.0881 DAL GW 605L 0 060412 ~ ND I East I 'Average PFOA (ppb) = ng/mL for aqueous samples, nglg for solid samples .

~ ~~ Katherine E .

4W.

q6fe-ROBERT A.

: July 31, 1981 0: FLUOROPOLTMERS PRODUCTION, TECHNICAL AND MECHANICAL SUPERVISION FROM: RB.

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