PFOS Ecotoxicological Testing Results Comparison of Effect Concentrations Calculated Using Different Sample Purity All values calculated as mean measured concentrations, except where * (nominal).

AR226-2191 EID 293578 Washington Works C8 Emissions - Actual with FPD at 12000 43485004348000- 4347500- 4347000- ?

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AR226-2641 AR226-2641 DuPont Modeling M ethodology and Results DRAFT Shimizu Site June 2003 About the Model I Industrial Source Complex Short Term 3 (ISCST3) I Sold/used globally, including in Japan http://www.phoenix-r.co.jp/products/products.htm I Input l Stack height, diameter I Flowrate, temperature I Mass of pollutant (kilogram per hour) I Local meteorological data (Shizouka 1997, 98, 99) 1 Output l Ambient air concentrations in ug/m3 I Max values and locations outside the property line Prevailing wind ai i i w i Facility Vapor reaches ground level Ambient annual ground level concentration in ug/m3 Model Calculations I Ambient air concentrations based on Gaussian Equation I Concentration a function of a vertical term and a dispersion term I Vertical term based on stack height, receptor elevation, plume rise, mixing 1 Dispersion parameters describe distribution of pollutant in lateral and vertical Shim izu M odeling Inputs Stack Param eters Source ID 2 3 4 Description Location Operations Beiahi. m Diameter, m Flowrate m3/hr Pre-scrubber exit for Tine powder Operates 24 hours scrubber (called *AC Scrubber* on mao) D Plant per day. 180 days per year 8 0.68 2400 Post-scrubber exit for fine powder Operates 24 hours scrubber (called `A C Scrubber* on per day. 180 days mao) D Plant per year Operates 24 hours 15 0.6 9600 E Plant: copolymer per day, 270 days D BC Scrubber plant for P F A and F E P per year 18.2 0.6 1620 M P-2 building: Operates 24 hours M P-2 scrubber copolymer type micro- per day, 200 days oowder per year 16.1 10.6 assumed 7500 / ' S7*----- ^ / (1) Given in email o f 4/17/03 from Hie etaka Hiromatsu: 600 s a mm square diameter.

AR226-2769 WASHINGTON WORKS GLOVE TESTING FOR C8 (Ammonium Perfluorooctanoat*> PBPMPa^rnW Haskell Laboratory Report No. 612-81 r 0t OValuation oi fivo types of gloves for their permeation below sSaLa^pllees3.of\t;hr g?

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r -- ------------------------------------- ---- ------- -- -- -------------------------------404 TRADE SECRET Study Title H-24768: Subchronic Toxicity 90-Day Gavage Study in Rats with One-Generation Reproduction Evaluations Volume 4 of 5 Laboratory Project ID: DuPont-5990 DuPont-5990 Test Guidelines: U.S.

RECYCLED ^TOOO 8m ~9V*W M S.X.G- V # Validation of Determination of Total Fluorine in Blood by Wickbold Torch with Direct Potentiometrie Detection.

Ar RAG_ 17 o 000204 C-O-N-F-I-D-E-N-T-I-A-L Location SUMMARY ORGANIC FLUORIDES IN BLOOD SAMPLES Job Group Number Sampled Range ppm Average ppm iashincton Works Wilmington Chambers Works Chambers Works - PFD Experimental Sta.

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ENVIRONMENTAL ENGINEERING LABORATORY AQUATIC TOXICITY DATA SHEET TVP T e s t C M a t e r i a l T e s t e d f<2-9S~ O - f Z~g3 T e s t O r g a n is m ]*Iaa/QiJ /S iftfAjL A vg.

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

ENVIRONMENTAL PHYSICAL/CHEMICAL, FATE, EFFECTS AND MONITORING STUDIES BACK TO COMPOUNDS STUDY TITLE LABORATORY OR DATE AUTHOR COMPLETED TYPE Physical/Chemical Properties Impinger Studies of Volatility of FC-95 and FC-143 3M Environmental Lab Characterization Study of PFOA: (LOT #332), Primary Standard-Test Control Reference #TCR-99030-030.