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NorthwesiBioamlytcs R226 - 1209 ReSptourdtyNNoo..NNWWBBRS000..014080 Quantitative Determination of PFOS, PFOSA, PFOSAA, POAA, PFHS, M556 and M570 in Human Serum by LC/MS/MS Assay Revalidation Report ) Northwest Bioanalytical (NWB) A Division of NWT Inc.

AR226-1401 || ' | , was QD E. 1 ou Pont 0 Nemours & Company WILMINGTON, DELAWARE 19858 AR&&G -- 140!

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BACK TO MAIN Analytical Data Summary PFOS, Primary Standard - Test Control Reference #TCR-00017-046 SOLUBILITY IN WATER, NATURASLEAWATER, AN AQUEOUSSOLUTION OF 3.5% SODIUM CHLORIDE, AND N-OCTANOWL ITH SUBSEQUENT CALCULATION OF THE N-OCTANOL:WATER PARTITION COEFFICIENT (&,) OF PFOS FOR EACH OF THE AQUEOUSMATRICES Author Mark E.

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GUM 699 ENGINEERING COMPUTAIN (M "2.4 - tool calc AR226-2303 SHEET I 1 - 30-0 assumption I rs o recpt child aI 4 I R.Pincho t inhalation x - source 6: 0 t I ()uinput. parameters 30 u ON ',SE61414CAriDsrORkilN . .

AR226-2399 COMMUNITY STATUS VATER AIR SOLID WASTE 10635-1 - 03/08/9 - WBCllft EID951507 WASHINGTON WRKS OFF-PLANT EMISSIONS POUNDS C-8 1983 1986 ' 1988 WATER 21,700 19,100 23,300 AIR 12,700 16,200 26,200 PRODUCT 8,000 8,300 11,300 OFF-PLANT DISPOSAL TO CW - VWTP 7,700 TO LETART LANDFILL ____ 8,300 ____ 9,000 2,000 50,100 51,900 71,800 10635-2 - 03/08/t9 - WKCikst EID951508 C-8 LEVELS IN DRINKING WATER DISTANCE FROM NO. 5 OUTFALL {HZLKS) PPB 1984 1987 1988 PARKERSBURG 7.50 UPSTREAM ND ND WASH WORKS 0.50 UPSTREAM ND ND ND LUBECK WATER DISTRICT 0.25 DOWNSTREAM 0.25 DOWNSTREAM 1.1 1.9 1.8 1.5 1.9 1.4 LITTLE HOCKING 3.00 DOWNSTREAM 0.6 ND ND RAVENSVOOD 29.0 DOWNSTREAM ND ND = NOT DETECTABLE 10635-3 - 03/08/89 - WBCflcat EID951509 005>/ 00 0091- 00 ?

AR226-2498 j 1 "5 i ; |l 1 l 1j "x ifls .

AR3RG. 4705 27 Arar. 2708 Duron 14365 `TRADE SECRET Study Title Hydrolytic Stability of H-25435 as a Functionof pH TEST GUIDELINES: OECD Guideline 111 AUTHOR: Bogdan Szostek, Ph.D.

AR226-2749 Copies to: E.