3M Environmental Laboratory Method Analysis of Potassium Perfluorooctanesulfonate or Other Fluorochemicals in Liver Extracts Using HPLC-Electrospray/Mass Spectrometry Method Number: ETS-8-7.0 Author: Lisa Clemen, Glenn Langenburg Approved By: Adoption Date: 0 Revision Date: fJfV Laboratory Manager Date Group Leader A diiArU- Technical Reviewer Date O l i n /??

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AR226-2244 Thompson Collins Watkins Smith _______________________________ Name_____________________________________ Concentrations are from the deposition modeling runs, and Include wet and dry depletion due to deposition EDDOO6 5 8 3 3 Particulate Vapor Total Deposition Deposition Deposition Coordinates (q/m2/yr) (q/m2/yr) (g/m2/yr) 445213E 4346090N 443141E 4345753N 443223E 4345847N 443254E 4345S88N 0.00098 0.00179 0.00193 0.00186 0.00008 0.00021 0.00019 0.00018 0.00106 0.00200 0,00212 0.00204 Particulate Vapor Total Concentration Concentration Concentration (ug/m3) iu g /m 3) (ug/m3) 0.02000 0.03217 0.05217 0.037S2 0.05854 0.09606 0.03665 0.05695 0.09360 0.03554 0.05587 0,09141 EDDO O6 5 8 3 4

AR226-2653 AR226-2653 ISC Modeling Methodology and Results Introduction This report summarizes dispersion modeling that was completed for the DuPont Washington Works facility to demonstrate that the emission limits included in Permit Application 1823C for the Thermal Converter complies with the C-8 assessment of toxicity (CAT) recommended airborne screening level o f 1.0 ug/m3 at the property line fence.

AR226-2664 54 > RES EA RC H Precise Research.

RECYCLED uroi AR226-2703 AR226-2703 TORONTO WORKSHOP MATERIALS Septem ber 13-14,2004 Fluorotelom ers________ What are they?

AR226-2758 FOR DU PONT USE ONLY Copies co: E.

AR226-3356 Effects of Fluorotelomer Products on the Bacterial Growth, Degradation of Organic Substances, and Microbial Population from Activated Sludge of a Domestic Sewage Treatment Plant Wana N.1.

fi 5 3i OOOOG M U G - 3H-0Z TRIP REPORT: National Medical Services Laboratory (NMS), Willow Grove, Pennsylvania Tuesday, January 29, 2002 Mary A.

Afua.6- ltflf. 9 v M i * 68 000652 Job Code 8PE 08PF 08PH 08PI 08PJ 08PM 18PA 18PB 18PC 18PD 18PJ 18PK M echanics 1984 6.4 3.5 0.8 1.3 0.8 2.5 0.9 Average for Job 1985 1989-1990 4.9 4.4 3.2 2.2 2.4 0,7 0.4 1A 0,1 0.6 0.9 2.7 0.5 1.1 0.1 0.4 1995 2.5 2.9 1.7 2.0 0.5 1.7 2.3 1.6 3.3 0.1 0.7 2.1 1.0 ARX26- W q- i11rlii 000SS3

3M 3M Environmental Laboratory Project No.

A P 3 -2 6 -O IH Study Title Static Acute Toxicity of FX 3820 to the Daphnid, Daphnia aacna Authors Timothy J.

AR226-1030A031 BACK TO MAIN Analytical Data Summary PFOS, Primary Standard - Test Control Reference #TCR-00017-046 S o lu b ilit y in W a t e r , Na t u r a l S e a w a t e r , an A q u e o u s So lu tio n of 3.5% S o d iu m C h lo ride, and n-O ctano L with S ubsequent Calculation of the n-O c tan o l:Water Pa r t it io n Co e ff ic ie n t (KoW) of PFO S fo r each of t h e A q u e o u s Ma t r ic e s Author Mark E.