NYC-WTC_000197589

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- 61?- 607-6444

Client - ATC Client's Sample ID ATC-1203-STY-DX4 Lab Sample ID 103183125 Filename U11209A_15 Injected By BAL Total Amount Extracted 1 Sample Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 12/03/2001 ICAL Date 11/10/2001 Received 12/04/2001 CCal Filename(s) U11209A_01 & U11209A_17 Extracted 12/05/2001 Method Blank ID BLANK-1358 Analyzed 12/10/2001 07:03

a Native Isomers Cone ng/S EMPC ng/S LRL ng/S Internal Standards ng's Added Percent Recovery 2,3,7,8-TCDF ND —- 0.00200 2,3,7,8-TCDF-13C 2.00 86 Total TCDF ND — 0.00200 2,3,7,8-TCDD-13C 2.00 78 1,2,3,7,8-PeCDF-13C 2.00 84 2,3,7,8-TCDD ND 0.00200 2,3,4,7,8-PeCDF-13C 2.00 83 Total TCDD ND 0.00200 1,2,3,7,8-PeCDD-13C 2.00 84 1,2.3,4,7,8-HxCDF-13C 2.00 109 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 2.00 103 Total PeCDF ND 0.01000 1,2,3,7,8,9-HxCDF-13C 2.00 93 1.2,3.4,7.8-HxCDD-13C 2.00 98 1,2,3,7,8-PeCDD ND 0.01000 1,2,3,6,7,8-HxCDD-13C 2.00 107 Total PeCDD ND 0.01000 1,2,3,4,6,7,8-HpCDF-13C 2.00 82 1,2,3,4,7,8,9-HpCDF-13C 2.00 61 1,2,3,4,7,8-HxCDF ND 0.01000 1,2,3,4,6,7.8-HpCDD-13C 2.00 68 «<^ 1,2,3,6,7,8-HxCDF ND 0.01000 OCDD-13C 4.00 26 IP 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 i 1,2,3,4,7,8-HxCDD ND 0.01000 2,3,7,8-TCDD-37Cl4 0.20 73 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: 0.000036 ng/S 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 0.036 0.02000 J 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 J Report No.... 01-1051682

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

CITY_21MC100_003046217

NYC-WTC_000197594