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BACK TO MAIN Study Title Solubility Study of Perfluorooctanesulfonate(PFOS), SD-018 and Perfluorooctanesulfonamide(FOSA), SE-027 in Male/Female Human Urine Data Requirement 40 CFR 160.105(b) Author Mark E.

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AR226-2628 16 Appendix 1 Chemical Analysis of Concentrations in Groundwater C8 (pg/l); period 1993 to 1996 DuPont coordinates Eastern Northern lm] [m] Monitoring Well Freatic layer 1947 546 108 2204 350 118 2190 627 119 1998 663 301 2082 683 302 2084 671 303 2243 686 305 2296 633 307 2208 513 308 1950 592 310 1950 608 311 1950 625 312 1950 640 313 2237 405 314 2275 279 315 2058 677 316 2106 689 317 2240 575 318 First aquifer 2235 2275 405 MF-02 277 MF-03 1543 1930 19 N-07 20 N-08 2038 20 N-09 2319 20 N-10 2004 69 N-13 2355 119 N-15 2008 467 N-17 1900 277 N-18 2030 352 N-19 1929 177 N-20 1855 404 N-21 2174 272 N-23 2108 1975 -7 N-25 -100 N-26 1872 1989 -17 N-27 99 N-28 2104 1890 2087 1969 1944 1880 84 W-02 68 W-03 668 W-05 426 W-06 275 W-08 23 W-09 Second aquifer 2030 352 N-19 2174 272 N-23 1989 99 N-28 1969 1944 426 W-06 275 W-08 Date of sampling 1993 feb '94 okt "94 1.9 0.5 13.0 9.7 9.7 11.0 5.9 0.3 13.0 0.0 0.4 0.4 0.2 3.9 0.6 0.7 28.0 0.35 0.0 1.5 0.6 0.2 0.3 0 0 0 Average aug '95 dec '95 mrt'96 concentration 1700 1.6 170 79 3.9 5500 260 82 56 280 250 480 24 100 100 190 70 510 1900 0 0.1 33.0 1.1 9.0 15.0 1.0 7.3 7.1 0.1 9.4 0.4 0.2 0.1 0.1 0.1 2 170 90 4 5500 1700 260 190 76 56 280 250 480 24 100 510 1900 0 0.1 33.0 1.9 0.8 10.6 12.4 8.5 0.3 13.0 0.0 0.4 0.4 0.2 1.0 7.3 7.1 0.1 9.4 3.9 0.7 28.0 0.2 0.8 0.2 0.2 0.1 0.1 0.0 0.1

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AR226-0342 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: N-Ethylperfiuorooctanesulfonamide; may also be referred to as UOc1t4a6n4e,suEltfFoOnSaAm,idEet,P1O,S1,A2,,2F,-36,330,94.,4o,5r.F5X,6-61,27.,7.(81,-8.8heptadecafluoro-N-ethyl-, CAS # 4151-50-2) Remarks: Material is a white solid.

AR226_ 1253 - -- | TSCA NCIC NoriFica-- Tion FORM FOR C-- BJ Documents 1|| DOCKET Numer-- : R32 DocuMENT ConTroL NuMBER--: LZeoeco003 DOCUMENT DATE: "-2-02 DOCUMENT Type: Dect & &IE38 &=5 THEDOCUMENTREFERENCEDABOVE 1S (CBI)unoer SecTion 14 0FTHETOXIC CLAIMED AS CONFIDENTIAL SUBSTANCE C BUSINESS INFORMATION ROTEFSLCETAAS.SCEAANORDRIETDQUIIIMRPSEOSCSEELSPOCAORTSIFOMUSIPNURRACOLEHTPEEICNNATFLFOTRRIMOEASTMIFOPONUR,BLTIHCESDKInSoOCWNLITONRSGOULRaEtASeCsTCtB(ITSOrCBAT)A.IuNNTEAHDUATUTHNOSDREEICRZTEIDON ABLE TO ACCESS THiS DOCUMENT.