NYC-WTC_000194738

NYC 9/11 Public Portal Document

F’ace Analytical Services, Inc. 1700 Elm Street - Suite 200 Minneapolis, MN 55414 ‘Hl*

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

Client - ATC ASSOCIATES Client's Sample ID ATC-0425-89M-DX3 Lab Sample ID 103499919 Filename F20509C_07 Injected By BAL Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 04/25/2002 ICAL Date 05/04/2002 Received 04/30/2002 CCal Filename(s) F20509B_15 & F20509C_15 Extracted 05/06/2002 Method Blank ID BLANK-1610 Analyzed 05/10/2002 00:13 Native Cone EMPC LRL Internal ng's Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3,7,8-TCDF ND 0.00200 2,3,7,8-TCDF-13C 2.00 77 Total TCDF 0.0055 0.00200 J 2,3,7,8-TCDD-13C 2.00 65 1,2.3.7.8-PeCDF-13C 2.00 71 2,3,7,8-TCDD ND 0.00200 2,3,4,7,8-PeCDF-13C 2.00 75 Total TCDD 0.0160 0.00200 B 1,2,3,7,8-PeCDD-13C 2.00 68 1,2,3.4,7,8-HxCDF-13C 2.00 114 1,2,3,7,8-PeCDF ND 0.01000 1,2,3.6,7,8-HxCDF-13C 2.00 91 2,3,4,7,8-PeCDF ND 0.01000 2,3,4.6,7,8-HxCDF-13C 2.00 103 Total PeCDF ND 0.01000 1,2,3,7,8.9-HxCDF-13C 2.00 94 1,2,3,4,7,8-HxCDD-13C 2.00 101 1,2,3,7,8-PeCDD ND 0.01000 1,2.3.6,7,8-HxCDD-13C 2.00 90 Total PeCDD ND 0.01000 1,2,3,4,6,7,8-HpCDF-13C 2.00 88 1,2,3,4,7,8,9-HpCDF-13C 2.00 66 1.2,3,4,7,8-HxCDF ND 0.01000 1,2,3.4.6.7.8-HpCDD-13C 2.00 76 1,2,3.6,7,8-HxCDF ND 0.01000 OCDD-13C , 4.00 90 2,3,4.6,7,8-HxCDF ND 0.01000 1,2,3.7,8,9-HxCDF ND 0.01000 1,2,3,4-TCDD-13C 2.00 NA Total HxCDF ND 0.01000 1,2,3,7,8,9-HxCDD-13C 2.00 NA

1.2,3,4,7,8-HxCDD ND 0.01000 2,3,7,8-TCDD-37CI4 0.20 75 1,2,3,6,7,8-HxCDD ND 0.01000 1.2,3,7,8.9-HxCDD ND 0.01000 Total HxCDD ND 0.01000 1,2,3,4,6.7,8-HpCDF ND 0.01000 Total 2,3,7,8-TCDD 1,2,3,4,7,8,9-HpCDF ND 0.01000 Equivalence: 0.000025 nc|/m2 Total HpCDF ND 0.01000 (Using ITE Factors) 1,2,3,4,6,7,8-HpCDD ND 0.01000 Total HpCDD ND 0.01000 OCDF ND 0.02000 OCDD 0.0250 0.02000 J LRL = Lower Reporting Limit Cone = Concentration (Totals include 2,3,7,8-substituted isomers) 1 = 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.... 02-1056898

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

CITY_21MC100_003096867

NYC-WTC_000194738