NYC-WTC_000218502

NYC 9/11 Public Portal Document

MAR-19-02 08:ZZ FROM-PACE ANALYTICAL 612-607-6444 T-080 P.lO/10 F-157 1700 Elm Street - Suite 200 Minneapolis, MN5&414

^ceAnalytical'_________ Method 8290 Analysis Results Tai; 612^7-1700 Fax; 612- 607-6444

Client - ATC Client's Sample ID ATC-0222-234M-DX3 Lab Sample ID 103343380 Filename U20312A_08 Injected By CVS Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Ofy Weight Extracted NA Collected 02/22/2002 ICAL Date 03/12/2002 Received 02/25/2002 CCal Filename(s) U2O312A_O6 & U20312A_21 Extracted 03/05/2002 Method Blank ID BLANK-1499 Analyzed 03/12/2002 16:02 Native Cone EMPC LRL Internal ng's Percent isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3,7,8-TCDF ND — 0.0020 2,3,7,8-TCDF-13C 2.00 72 Total TCDF ND ---- 0.0020 2,3.7.8-TCDD-13C 2.00 67 1.2,3,7,8-PeCDF-13C 2.00 65 2,3,7.8-TCDD ND 0.0026 A 2,3,4.7.8-PeCDF-13C 2.00 69 Total TCDD NO 0.0020 1,2,3,7,8-PeCDD-13C 2.00 64 1.2.3.4,7.8-HXCDF-13C 2.00 75 1,2,3.7.8-PeCDF ND 0.0100 1,2,3,6,7.8-HxCDF-13C 2.00 70 2,3,4.7,8-PaCDF ND 0.0100 2,3,4,6,7.8-HxCDF-13C 2.00 74 Total PeCDF ND 0.0100 1,2,3.7,8,9-HxCDF-13C 2.00 75 1,2,3,4,7,8-HXCDD-13C 2.00 98 1.2.3,7,8-PeCDD ND 0.0100 1.2,3.6,7,8-HxCDD-13C 2.00 71 Total PeCDD NO 0.0100 1,2,3,4,6,7,8-HpCDF-13C 2.00 85 1,2,3.4,7,8,9-HpCDF-13C 2.00 86 1,2,3.4.7,a-HxCDF NO 0.0100 1.2,3,4.6.7,8-HpCDD-13C 2.00 100 1,2,3,6,7,8-HxCDF NO 0.0100 OCDD-13C 4.00 78 2,3,4,6.7.8-HxCpF ND 0.0100 1,2,3,7.8,9-HxCDF ND 0.0100 1.2,3,4-TCDD-13C 2.00 NA Total HxCDF ' ND 0.0100 1.2.3,7,8,9-HxCDD-13C 2.00 NA 1,2,3,4,7,8-HxCDD ND 0.0100 2,3,7,8-TCDD-37CI4 0.20 69 1,2,3,6,7,8-HxCDD ND 0.0100 1,2.3.7.8.9-HxGDD ND 0.0100 Total HxCDD ND 0.0100 1,2,3AB,7,8-HpCDF NO 0.0100 Total 2,3,7,8-TCDD 1,2.3,4,7.8,8-HpCDF ND 0.0100 Equivalence: 0.00 ng/mZ Total HpCDF ND 0.0100 (Uaing ITE Factors)

1,2,3,4,6,7,8-HpCDD ND 0.0100 Total HpCDD ND 0.0100 OCDF ND 0.0200 OCDD NO 0.0200 LRL B Lower Reporting Limit Cone ■ CcxiowMratlon (Totals includs 2,3,7,8-substitLit0d isomers) IB interference EMPO - Estimated Maximum PoMfUta Concentration E B PCOE Inierferencs A s Detection Limit based on slgnet-to-noiss measurement S E Saturated signal J * Concentration detected is below the oailbntlion range NO « Not Detected B E Leas than io times higher than method blank lewsl NA B Not Applicable P B Reooveiy outskte of target range NC = Not Calculated Nn B value obtained from additional analysis ' a See Discussion Report No.... 02-1054414

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.

CITY_21MC100_002879183

NYC-WTC_000218507