AR226-2133 Test Results Sample Date Range Concenlration Range Action Level Industrial Hygiene 1/1/2002 na2/2oo2 100% Sample Dt sample* Duration Type Employee Name BTO: 08 LOC; 045 TEFLON B-162 ROOF 2nd Level-GeneralS Hart/Units 3/5/2002 10445 360 A S/11/2002 10514 360 A 9/11/2002 10631 360 A Pera Chemical C-8/FG-143 C-8/FC-143 C-WC-143 BTO; 08 LOC: 048 TBFLON@ B-l% OUTSIDE SMOKING AREA -2ND LEVEL 3/6/2002 10448 380 A 6/11/2002 10815 360 A fl/13/2002 10637 380 A CWC-143 C-6/FC-143 C-8/FC-143 BTO: W TEFLON I.OC; 101 P/S-TFE FIELD OPERATOR (QSPA) 1/22(2002 36782 360 P ?

AR226-2181 Chris EShoop_ 08/22/2001 12:42 PM To: Debbie J Mulrooney/AE/DuPont@DuPont i cc: Subject: Revised Data for Stacks Debbie, Please see the attached file for the data file containing revised slack heights, diameters, and velocities.

AR226-2491 April 26,2001 Mr.

AR226-2508 WASHINGTON WORKS - PERMIT WV0001279 QCTOBER AND NOVEMBER 2001 FC-143 RESULTS (Letter.

FEB.26.2002 9:3VM jfMtT<CiiWM> Laioou Government Center j iae a.

Katherine E .

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SDRTPITST-B6295.8, T-6316.4, T68682, T20711, T7132. 3M MEDICAL DEPARTMENT, CORPORATE TOXICOLOGY T-6295),`TNi-tleet:hCyolmppearrfalutoirvoeocMtoalneecsuullafronBaimoildogoyeotfhaPneorlfl(uNo-rEo(ocFtOaSnEe,suTl-f6o3n1a6t)e,(NP-FEOtSh,yl acepteartfel(uoFrOoSoAcAta,nTe-s7u0l7f1o)n,amaindde/o(rNP-eErFfOluSoAr,coTc-t6a8n6e8s)u,lPfeornfalmuiodreo(oFctOaSnAe,suTl-f7o1n3a2m)iodfo in Rats and Guinea Pigs following Oral dosing.