% DuPont Modeling Methodology and Results D ebbie M ulrooney D uPont E ngineering T e c h n o lo g y A pril 2 4 , 2 0 0 2 AR226-2279 Modeling Methodology EPA's Industrial Source Complex 3 (ISC3) Model i Followed procedures In EPA's Guideline on Air Quality Models (Appendix W) BPIP model to evaluate building downwash effects CtisfJ Terrain elevations imported from USGS electronic file Receptor grid with 100-meter spacing 5n-site met data (1996) 2-fi>r J.Y fi't/J - quip W- Modeling Inputs a?.

AR226-2414 -9 s u e ^ H pUjQ. 3/13/8?

Ohio River Public Water Systems Well Field Results Range in ug/L From Upriver To Downriver w/ Respect To Facility: - Belpre (3 m. up): NQ (<.05) to .107 - Blenls.

AR226-2559 ' 964 08/01 *01 13:01 ID:DUDUP0NTWI1" D-^085-2 302 774 6474 PAGE 2 ,. 91 07/30/01 14:03 0 :0 2 /0 6 O ;, (S > uwtkd r TM prdtecton A0BKy i'fifluitipiUs, Pwmiytva^* l a t te o K t\Jif#I11 BgfURW H tf if iin PffOCTaTgft &fo PwlIoMtttl M*nl Manag 4. diiPoni 4t>Nemciuru& Co, he aitt M2 Sautli dupontD6i| Petersburg.

recycled N> CO AR226-2640 AR226-2640 Shimizu Works Groundwater Sampling Results Aug. 5-7, 2002 Scope of Work Summary Sampling Points - 8 operating pumping wells (other shallow wells at site were dry) - site WWTP effluent going to public trench (Well 9) - surface water trench outside site along access road (Well 10) Analytical Program - FC-143 (by Eygen Labs) - Priority Pollutant VOCs/SVOCs/Metals WELL 10 ( M SHIMIZU WORKS LAYOUT WEWLLaste5 P 1.7) South Gate [j (697) West Gate 20m depth WELL 1(1200) 10m depth 4m depth SHIMIZU WORKS GROUNDWATER SAMPLING-AUG. 5-7,2002 ANALYTICAL RESULTS SUMMARY (IN UG/L) ----- ------- ------------ - S a m p le lD I ... ....

AR226-2661 RECYCLED Exygen RESEARCH I : Precise Research.

RECYCLED 03 AR226-2681 3M Environmental Laboratory AR226-2681 Results from Analyses of Soil and Groundwater Samples From the E.

M jsl _ 33/7 .

RECYCLED & SGCOOO 9W )iV y 4 A R C - lf-39 July 29, 1982 TO: R.

Underwriters Laboratories Inc.

M&S.6 _ 066S PFOA Acute Toxicity - / 000814 gg) HAZLETON l a b o r a t o r e s a v e r c a ,SC 3301 KINSM AN BLVD., P.O.

TSCA NCIC Notification Form for CB!

ARjU-03 'Ub N I c o v/h 1> THE DEVELOPMENT SERVICES COMPANY 004546 Draft Report 13-Week Dietary Toxicity Study with N-Methyl Perfluorooctanesulfonamido Ethanol (N-MeFOSE, T-6314) in Rats PREPARED FOR: 3M St.

AR x x r o n i Draft Report 5-Daily Dose Dermal Absorption/Toxicity Study of T-6684 in Rabbits PREPA3RMED FOR: COVANCE6S3T29U-D20Y0 NUMBER: IJSuSlyUE11D, A19T9E7: 005501 Sponsor: 3M St.

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