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.

Northwest Bioanalytical ARQAG -- 113 SStuudyeNo. mNWBsS0e0-1s45 Quantitative Determination of PFOS and Related Compounds in Human Serum by LC/MS/MS Sample Analysis Report for Protocol EPI-0016 Northwest Bioanalytical (NWB) A1D1i2v1iEsaisont o3f9N00WSTouItnhc.

AR 426 _ 0661 N-Et FOSE alcohol Teratology - le @ LABORATORIES AMVERCA INC 1.

ARR26- 066& PFOA Genotoxicity - | 000865 MUTAGENICITY TEST ON CORNINGHazleton T6358 MEACSHUIRNIENSEG HCAHMRSOTMEORSOOVMAARLYA(BCEHROR)ACTEILOLNSS IN ~~~ FINALREPORT AUTHOR Hemalatha Murli, Ph.D.

AR 226 _ 0675 CenGtrPho eone:A(R 8n14a)l2e 3y1.t8i0s 3c2 aleFaxL:a a(8b14)oc 2rS31a-i1th 2e5o9orCroO il(ee8g9ss4,)m ,2P3A1TI-e 61n5Dc8I.0 SSS Analytical Report = Fluorochemical Characterization of Surface Water Samples Port St.

Northwest Bioanalytical Study No.

Wildlife International, Ltd.

ADIETARY LC30 STUDYWIPTrHoTs:HE NORTHERN BOBWHITE WILDLIFE INMTELRANABTRIEOQNUAELSLTTDN.OP:ROUJEaCT NOS 454103 Serie 8U5S0.EcElPognPeTloESfenNcu)mePro3cT5t0si2oG3n0u0Algeens (ds) FIFRA Subdivision,Scion 71.2. 0RCD Guststne 205 AUTHORS: SCTocouarmnm..eyGSBa.leClvohieesyr Reymond vin Hoven STUDY INITIATION: Apri 21, 1599 STUDYCOMPLETION: Ap26, 2r000 AMENDEDREPORTDATE:March 23,204 EnvSo3UmMBmCeMonrIploTrLaTatibTEoonDrOsory P5a3, BMuinAncae$5144 Wildlife International, Ltd.

AR226-2307 Scope and Cost of Air Dispersion Modeling Cathie Barton DuPont 03/10/03 Overview of the Scope I Can hire contractor or use in- house modeling resources Data Gathering > Modelim Interpreta of Resul 03/10/03 I Your input is critical here -vs^s^ Data Gathering Meteorological Data Terrain elevation maps Stack Parameters - Location (coordinates) - Height - Temperature - Stack gas vertical velocity - Diameter - Emission rates for each compound Plot Plan - Exact locations of all sources - Property line - Building locations and heights Modeler typi gets this information you 03/10/03 Standard Model and Methodo EPA's preferred model: Industrial Sou Complex Short Term 3 (ISCST3) Mode Procedures detailed in EPA's Guidelin Air Quality Models (40 CFR 51 Append http://www.epa.gov/scram001/guidanc de/appw_01.pdf 03/10/03 Modeling Output Model will calculate hourly concentra in ug/m3 across a study area (5 km x km for example) Model will average those concentrati over a designated time period (24 ho monthly, yearly) Concentration contours showed exte different ug/m3 Also shows numerical values (top 10 the study area and locations) 03/10/03 Technicolor Example of Outp 2480000-H 247BOOO 2476000-1 W1000-\ 2472000H 2-170000-^ 2468000-1 2466000-'- 608000 610000 612000 614000 616000 618000 620000 62200 Interpretation of Results Compare maximum averaged concentration to appropriate "thres value - Maximum annual average would be compared to a chronic toxicity value - Maximum hourly average would be compared to an acute toxicity value 03/10/03 Cost and Timing Expect about 50 man-hours (_10 h Costs - Outside modeler charges approximate $150/hr - Meteorological data could be up to $1 - Estimate around $8,500 for an averag 03/10/03

AR226-2627 15 AR226-2627 RESULTS OF C8 SAHPLES PROM Dg'IH J993 5BOmro QATES SAMPLES ON THE SITE, Sample poinc C8 ia ppb ^fT-^^ -^/-2/ (r3 A B ff6 A B C D ?

AR226-2635 23 AR226-2635 AIR QUALITY DISPERSION MODELING ANALYSIS OF C8 EMISSIONS DuPont Fayetteville, North Carolina Facility Prepared by: Charles J.

AR226-2701 23 AR226-2701 TORONTO WORKSHOP MATERIALS September 13-14,2004 Measuring Physical Chemical Propertie & Analytical Mar/A.

AR226-2715 2 AR226-2715 DRAFT DuPontWashmgton Works Occupational Blood Monitoring Program for PFOA Preliminary analytical results from new employee serum samples.

Copies +o: E.

FOR DU FONT USE ONLY AR226-2890 Copies toufl E.