Asbestos bulk sample lab results, Aug 2002

NYC 9/11 Public Portal Document

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

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

Client - ATC ASSOCIATES Client's Sample ID ATC-0826-130M-DX3 Lab Sample ID 103810164 Filename U21010B_14 Injected By BAL Total Amount Extracted 1.00 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 08/26/2002 ICAL Date 08/06/2002 Received 08/28/2002 CCal Filename(s) U21010A_14 & U21010B_16 Extracted 09/29/2002 Method Blank ID BLANK-2231 Analyzed 10/11/2002 06; 19 Native Cone EMPC LRL Internal ng's Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3,7,8-TCDF ND 0.00250 A 2,3,7,8-TCDF-13C 2.00 75 Total TCDF ND 0.00200 2,3.7,8-TCDD-13C 2.00 48 1,2.3.7,8-PeCDF-13C 2.00 79 2,3,7,8-TCDD ND 0.00470 A 2.3,4,7,8-PeCDF-13C 2.00 81 Total TCDD 0,0040 0.00200 J 1,2.3,7.8-PeCDD-13C 2.00 76 1,2,3,4,7,8-HxCDF-13C 2.00 86 1,2.3.7.8-PeCDF ND 0.01000 1,2,3,6.7,8-HxCDF-13C 2.00 101 2,3,4,7,8-PeCDF ND 0.01000 2,3,4,6,7.8-HxCDF-13C 2.00 93 Total PeCDF ND 0.01000 1.2,3,7,8,9-HxCDF-13C 2.00 91 1,2,3,4,7,8-HxCDD-13C 2.00 93 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 93 1.2,3,4,7,8,9-HpCDF-13C 2.00 86 1,2,3,4,7,8-HxCDF ND 0.01000 1,2,3,4,6,7,8-HpCDD-13C 2.00 86 1,2,3,6,7,8-HxCDF ND 0.01000 OCDD-13C 4.00 69 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 54 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: 0.00 ng/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 ND 0.02000

LRL = Lower Reporting Limit Cone = Concentration (Totals include 2,3,7,8-substituted 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.... 1061865

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

CONFIDENTIAL, CITY_21MC1OO_OO343O543 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000175189