NYC-WTC_000218502

NYC 9/11 Public Portal Document

Pace Analytical Services, Inc. 1700 Elm Street - Suite 200 Minneapolis, MN 55414

^ace Analytical_________ 8290 Analysis Method Results Tel: 612-607-1700 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 Dry Weight Extracted NA Collected 02/22/2002 ICAL Date 03/12/2002 Received 02/25/2002 CCal Fiiename(s) U20312A 06&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 TotatTCDF 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 ND 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-PeCDF 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,a-PeCDD ND 0.0100 1,2,3,6,7,8-HxCDD-13C 2.00 71 Total PeCDD ND 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 1,2,3,4,7,8-HxCDF ND 0.0100 1,2,3,4,6,7,8-HpCDD-13C 2.00 100 1,2,3,6,7,8-HxCDF ND 0.0100 OCDD-13C 4.00 78 2,3,4,6,7,8-HxCDF ND 0.0100 1,2,3,7,8,9-HxCD.F 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-HxCDD ND 0.0100 Total HxCDD ND 0.0100 1.2,3,4.6,7,8-HpCDF ND 0.0100 Total 2,3,7,8-TCDD 1,2,3,4,7,8,9-HpCDF ND 0.0100 Equivalence: 0.00 ng/m2 Total HpCDF ND 0.0100 (Using ITE Factors) 1,2,3,4,6,7,8-HpCDD ND 0.0100 Total HpCDD ND 0.0100 OCDF ND 0.0200 OCDD ND 0.0200 LRL = Lower Reporting Limit Coflc = Concentration (Totals include 2,3,7,8-substituted isomers) I = Interference EMPC a Estimated Maximum Possible Concentration E = PCDE Interference A ■ Detection Limit based on signal-to-noise measurement S = Saturated signal J a Concentration detected is below the calibration range ND = Not Detected B s Lass than 10 times higher than method blank level NA = Not Applicable P s Recovery outside of target range NC = Not Calculated Nn s Value obtained from additional analysis • = 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_002879180

NYC-WTC_000218504