NYC-WTC_000218502

NYC 9/11 Public Portal Document

Minneapolis, mn

weAnaIvticar_________ Method B290 Analysis Results Tel: 612-607-1700 Fax- 612- 607-6444

Client - ATC Client's Sample ID ATC-0222-234M-DX1 Lab Sample ID 103343364 Filename U20312A_20 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 Filename(s) U20312A_06 & U20312A_21 Extracted 03/05/2002 Method Blank ID BLANK-1499 Analyzed 03/13/2002 01:54 Native Cone EMPC LRL internal ng'S Percent isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3,7,8-TCDF ND 0.0030 A 2,3,7,8-TCDF-13C 2.00 63 Total TCDF 0.020 0.0020 2,3,7,8-TCDD-13C 2.00 67 1,2,3,7,8-PeCDF-13C 2.00 60 2,3.7,8-TCDD ND 0.0059 A 2,3,4,7,8-PeCDF-13C 2.00 61 Total TCDD 0,016 0.0020 1,2,3.7,8-PeCDD-13C 2.00 67 * 1,2,3,4,7,8-HxCDF-13C 2.00 86 1,2,3,7,8-PeCDF ND 0.0100 1,2,3,6,7,8-HxCDF-13C 2.00 51 2,3,4.7,8-PeCDF ND 0.0100 2,3,4,6,7,8-HxCDF-13C 2.00 61 Total PeCDF ND 0.0100 1,2,3,7,8,9-HxCDF-13C 2.00 53 1.2.3,4,7,8-HxCDD-13C 2.00 102 1,2,3,7,8-PeCDD ND 0.0100 1,2.3,6,7,8-HxCDD-13C 2.00 63 Total PeCDD ND 0.0100 1,2.3,4,6,7,8-HpCDF-13C 2.00 65 1,2,3.4,7,8,9-HpCDF-13C 2.00 59 1,2,3,4,7,8-HxCDF ND 0.0100 1,2,3,4,6,7,8-HpCDD-13C 2.00 59 1,2,3,6.7,8-HxCDF ND 0.0100 OCDD-13C 4.00 51 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-HxCD{3 ND 0.0100 2,3,7,a-TCDD-37CI4 0.20 68 1,2,3,6,7,8-HxCDD ND 0.0100 1,2,3,7,8.9-HxCDD ND 0.0100 Total HxCDD 0.023 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: 0.00029 ng/m2 Total HpCDF ND 0.0100 (Using ITE Factors) 1,2,3,4,6,7,8-HpCDD ---- 0.020 0.0100 I Total HpCDD 0.019 ---- 0.0100 J OCDF ND 0.0200 OCDD 0.290 0.0200 LHL = Lower Reporting Limit Cone « Concentration (Totals include 2,3,7,8-sub8tituted isomers) I = Interference EM PC 3 Estimated Maximum Possible Concentration E ■ PCDE Interference A = Detection Limit based on signai-to-noise measurement S = Saturated signal J = Concentration detected is below the calibration range ND = Not Detected B a Less than 10 times higher than method blank level NA = Not Applicable P s Recovery outside of target range NC = Not Calculated Nn = Value obtained from additional analysis * s 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_002879178

NYC-WTC_000218502