AR 226 - HCH PERSONAL AND CONFIDENTIAL | TO: C.

BACK TO MAIN Analytical Report Fluorochemical Characterization of POTW Effluent Mobile, Alabama (W2151) Centre Analytical Laboratory Report No. 023-014K (Revision 1) Revision Date 3/26/01 ~ ~~ ~ ~~~ Testing Laboratory Centre Analytical Laboratory, Inc. 3048 Research Drive State College, PA 16801 3M Environmental Laboratory Contact Kent R.

Gril Company ASAI 6LAS5 0.170.

NMSQ RELEASE A12125926 6- Minnesota Pollution Control Agency www.pca.state.mn.us Toll-free and TDD 1 (800) 857-3884 Saint Paul l Brained l Detroit Lakes 0 Duluth l Mankato 0 Marshall l Rochester 0 Willmar FOR RELEASE: May 9,200s MPCA Media Contact: Michael Rafferty, (65 1) 297-8294 MDH Media Contact: Tannie Eshenaur, (651) 215-0916 MPCA Technical Contact: lngrid Verhagen, (651) 296-7266 MDH Technical Contact: Jim Kelly, (651) 215-0913 GROUND-WATER INVESTIGATION CONTINUES TO FIND PFCS AT LOW LEVELS IN LAKE ELM0 PRIVATE WELLS AS FOUR TEST ABOVE HEALTH-BASED CRITERIA St.

AR226-2044 y Jack L Offenberger 07/07/99 01:68PM To: cc: Subject: Lester H Marks/AE/DuPont@OuPont, Stephen J Devries/CL/DuPont@DuPont, James W Hunt/Cl-/DuPont@DuPont, Partick J Cavanagh/CUDuPont@DuPont, Kevin C Rent2sch/AE/DuPont@DuPont Lauren D Andwson/AE/DuPont@>DuPont.

File;c8 Emission Point 662 647 699 652 658 231 232 216 242 274 R022EEF6 R022EEF8 R022EEF7 R022EEF9 Emission Rate IB/S) 0 2.06E-01 0 4.00E-03 2.00E-03 3.28E-02 3.32E-02 0 1.05E-02 3.03E-02 1.73E-04 4.31 E-05 4.31 E-05 8.63E.06 Stack Height (m) 45.7 18 19.2 21,3 20.7 21.7 20.3 18.3 21.3 33.5 14.3 14.S 14.9 14.9 Temp (K) 350.9 317 317 366.5 422 327.6 327.6 343.2 366.5 397 299.8 299.8 299.8 299.8 Velocity Ms) 12.3 51.8 6.46 1S.5 6.8 4.8 0.9 10.5 18 13.6 ' 9.1 12.2 3 6.1 Diameter (m) 0.405 0.457 0.305 0,598 0,497 0.251 0.635 0.396 0.204 0.21 0.762 0.61 0.61 0.61 FlleiCBActA Emission Point 662 647 699 652 658 231 232 216 242 274 R022EEF6 R022EEF8 R022EEF7 R022EEF9 Emission Rate ta/sl 0 2.02E-01 0 3.78E-03 2.52E-03 4.66E-02 4.66E-02 0 2.02E-Q2 1.41E-01 Q.OOEf-00 O.OOE+00 O.OOE+00 O.OOE+00 Stack Height (m) 4S.7 18 19.2 21.3 20.7 28.3 24.7 16.3 34.9 33.5 14.3 14.9 14.9 14.9 Temp (K 350.9 317 317 366.5 422 327.6 327.6 343.2 366.5 397 299.8 299.8 299.8 299.8 Velocity (m/s) 12,3 34.5 6.46 16.5 6.8 7.2 8.64 10,5 32.34 13.6 9.1 12.2 3 6.1 Diameter (m) 0,405 0.457 0.305 0.598 0.497 0.204 0.204 0.396 0.152 0.21 0.762 0.61 0.61 0.61 pile: CSActual Emission Point 662 647 699 652 658 231 Emission Rate (S/s) 0 2.06E-01 0 3.78E-03 2.52E-03 4.66E-02 Stack Height (m) 45.7 18 19.2 21.3 20.7 28.3 Temp (K) 350.9 317 317 366.5 422 327.6 Velocity ..

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AR226-2390 -^P0^ TOs ROGER ZIPFEL INTEROFFICE MEMORANDUM Date; From; 4"May-1.987 02s09pm EST TONY PLAYTI5 PLAYTI8 Dept; Tel No; TEFTECH 2775 < ZIPFEL ) Subjects C8 in Water ^W^^^.^^^ , SaiBBiS BBfc-Ge ?

AR226-2487 2/28/01 LPSD WATER SAMPLE ANALYTICAL RESULTS (Letter, R.

AR226-2531 TO: B.

AR226-2619 a7 i i ; } 2003-DuET-??

AR226-2630 18 AR226-2630 DuPont Modeling Methodology and Results Dordrecht Site June 2003 About the Model I Industrial Source Complex Short Term 3 (ISCST3) I Sold/used globally, including in The Netherlands http://www.phoenix-r.co.jp/products/products.htm I Input I Stack height, diameter I Flowrate, temperature I Mass of pollutant (mass per time) I Local meteorological data (Rotterdam, 1996 - 2000) I Output I Ambient air concentrations in ug/m3 I Max values and locations outside the property line Prevailing wind Facility 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 I Dispersion parameters describe distribution of pollutant in lateral and vertical Dordrecht Plant Site Dordrecht Modeling Inputs Stack Parameters PTFE Stack Height (m) 20.95 Stack Diam.

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 SHIMIZU WORKS LAYOUT WELLllO(B(M>) SHIMIZU WORKS GROUNDWATER SAMPLING-AUG. 5-7,2002 ANALYTICAL RESULTS SUMMARY (IN UG/L) "Sam'plelO--I ---^^------^^------^y------^^r,,....-^^,..,,..

AR226-2669 '1 01 \ CD AR226-2669 September 2002 Through August 2003 Air Dispersion Modeling Analysis of APFO Emissions (Revised) May 24,2004 Page 1 of 9 SEPTEMBER 2002 THROUGH AUGUST 2003 AIR DISPERSION MODELING ANALYSIS OF APFO EMISSIONS (Revised) DuPont Washington Works Facility Parkersburg, West Virginia Prepared for: West Virginia Department of Environmental Protection Division of Air Quality 7012 MacCorkle Ave, SE Charleston, WV 25304-2943 Prepared by: DuPont Engineering Technology (DuET) Environmental Section Wilmington, DE 19898 C:\c8\c8_0803_report_revised May 24,2004 ] a September 2002 Through August 2003 Air Dispersion Modeling Analysis ofAPFO Emissions (Revised) May 24,2004 Page 2 of 9 1.

AR226-2820 Material Tested: Submitted by: E.