NYC-WTC_000226928

NYC 9/11 Public Portal Document

FEB-19-02 11:13 FROH-PACE ANALYTICAL 612-607-6444 T-543 P.05/05 F-86G 1700 EIrn Street - Suite 200 Minneapolis. MN 55414 IW

weAnalytical____ _____ Method 8290 Analysis Results Tel; 612-607-1700 Fax; 612- 607-6444

Client - ATC Client's Sample ID ATC-0123-STY-DX4 r. 'J Lab Sample ID 103286308 G Filename U20212B_11 Injected By BAL Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 01/23/2002 iCAL Date.. 01/25/2002 Received 01/25/2002 CCa) Filename(s) U20212A„11 &U20212B_15 Extracted 02/08/2002 Method Blank ID BLANK-1457 /Analyzed 02/13/2002 07:51 Native Cone EMPC URL Internal ng's Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3,7.8-TCDF ND 0.0020 A 2,3.7,8-TCDF-13G 2.00 90 Total TCDF ND 0.0020 2,3,7,8’TCDD-13C 2.00 99 1.2.3,7.8-PeCDF-13C 2.00 101 2,3.7.8-TCDD ND 0.0024 A 2,3,4,7,8-PeCDF-13C 2.00 97 Total TCDD ND 0.0020 1,2.3,7.8-PbCDD-13C 2.00 117 1,2,3,4.7,B-HXCDF-13C 2.00 123 1,2,3,7,8-PeCDF ND 0.0100 1,2,3,e,7,8-HxCDF-13C 2.00 108 2,3,4,7,8-PeCDF ND 0.0100 2,3,4,6,7,8-HxCDF-13C 2.00 109 Total PeCDF ND 0.0100 1,2,3,7,8.9-HxCDF-13C 2.00 103 1,2,3,4,7,8-HXCDD-13C 2.00 125- 1,2,3,7,8-PeCDD ND 0.0100 1,2.3,6,7,8-HxCDD-13C 2.00 126 Total PeCDD ND 0.0100 1,2,3,4,6,7,8-HpCDF-13C 2.00 123 1,2,3.4,7,8.9-HpCDF-13C 2.00 98 1,2,3.4,7,8-HxCDF ND 0.0100 1,2,3,4,6.7,8-HpCDD-13C 2.00 111 1.2,3.6,7,8-HxCDF ND 0.0100 OCDD-13C 4.00 83 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 ND 0.0100 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: 0.00 ng/m2 Total HpCDF ND 0.0100 (Using ITE Factors) 1,2,3,4,6.7,8-HpCDD ND 0.0100 Total HpCDD ND 0.0100 OCDF ND 0.0200 OCDD ND 0.0200 . LRL D Lower Reporting Limit Cone a Concentration (Totals include 2.3,7,8-substitute<l isomers) I = Interference EMPC = Estimated Maximum Possible Concentration E = PCDE Interference A = Detection Limit based on signat-to-noise measurement S a 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 s Value obtained from additional analysis ’ a See Discussion Report No.... 02-1053443

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

CITY_21MC100_002896360

NYC-WTC_000226931