NYC-WTC_000203442

NYC 9/11 Public Portal Document

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

^ace Analytical_________ Method 8290 Analysis Results Tel: 612-607-1700 Fax' 612- 607-6444

Client - ATC Client's Sample ID ATC-0325-150M-DX1 Lab Sample ID 103435376 Filename U20423A_13 Injected By CMP ' Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA i Drjr Weight Extracted ICAL Date NA 04/16/2002 Collected Received 03/25/2002 04/02/2002 CCal Filename(s) U20423A 02 & U20423A_17 Extracted 04/15/2002 Method Blank ID BLANK-1572 Analyzed 04/23/2002 18:44 Native Cone EMPC LRL Internal ng's Percent isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3.7,8-TCDF 0.0044 0.0020 J 2.3,7,8-TCDF-13C 2.00 80 Total TCDF 0.1600 0.0020 2,3,7,8-TCDD-13C 2.00 74 1,2,3,7.8-PeCDF-13C 2.00 82 2,3,7,8-TCDD ND 0.0027 A 2,3,4,7,8-PeCDF-13C 2.00 81 Total TCDD 0.1100 0.0020 1,2,3,7,8-PeCDD-13C 2.00 72 1,2,3,4,7,8-HXCDF-13C 2.00 108 1,2,3,7,8-PeCDF ND 0.0100 1,2,3,6,7,8-HxCDF-13C 2.00 110 2,3,4,7,8-PeCDF ND 0.0100 2,3,4,6,7,8-HxCDF-13C 2.00 103 Total PeCDF ND 0.0100 1,2.3,7,8,9-HxCDF-13C 2.00 107 1,2,3,4,7,8-HxCDD-13C 2.00 93 1,2,3,7,8-PeCDD ND 0.0100 1,2,3,6,7,8-HxCDD-13C 2.00 86 Total PeCDD 0.0480 0.0100 J 1,2,3,4,6,7,8-HpCDF-13C 2.00 77 1,2,3,4,7,8,9-HpCDF-13C 2.00 81 1 1.2,3,4,7,8-HxCDF ND 1,2,3,4,6,7,8-HpCDD-13C ) 0.0100 2.00 77 1,2,3,6,7,8-HxCDF ND 0.0100 OCDD-13C 4.00 86 2,3,4,6,7,8-HxCDF 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 80 1,2,3,6,7,8-HxCDD ND 0.0100 1,2,3,7,8,9-HxCDD ND 0.0100 Total HxCDD 0.0260 0.0100 J 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: 0.00072 ng/m2 Total HpCDF ND 0.0100 (Using ITE Factors) 1,2,3,4,6,7,8-HpCDD 0.0170 0.0100 J Total HpCDD 0.0380 0.0100 J OCDF ND 0.0200 * OCDD 0.1000 0.0200 LRL = Lov/er Reporting Limit Cone = Concentration (Totals include 2,3,7,8-substiluted isomers) I = Interference EMPC = Estimated Maximum Possible Concentration E = PCDE Interference A = Detection Limit based on signal-to-noise measurement S = Saturated signal J - Concentration detected is below the calibration range ND = Not Detected B = Less than 10 times higher than method blank level NA = Not Applicable P = Recovery outside of target range NC = Not Calculated Nn = Value obtained from additional analysis * = See Discussion Report No..... 02-1055817

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

CITY_21MC100_003068202

NYC-WTC_000203442