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NYC-WTC_000207701

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000207701–000207707
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NYC 9/11 Public Portal Document

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

^ace Analytical Method ____________ Control Spike 8290 Laboratory Results Tel: 612-607-1700 Fax' 612- 607-6444

Client - ATC ASSOCIATES

Lab Sample ID SPIKE-2232 Filename U21008B_01 Matrix WIPE Total Amount Extracted 1.00 m2 Dilution NA {J 09/29/2002 ICAL Date 08/06/2002 Extracted CCal Filename(s) U21008A_17&U21008B_16 Analyzed 10/08/2002 21:33 Method Blank ID BLANK-2231 Injected By MRO

Native Qs Qm % Internal ng's Percent Isomers (ng) (ng) Rec Standards Added Recovery 2.3,7.8-TCDF 0.20 0.19 97 2,3,7,8-TCDF-13C 2.00 76 2,3,7,8-TCDD-13C 2.00 75 1,2,3,7,8-PeCDF-13C 2.00 81 2.3,7,8-TCDD 0.20 0.19 96 2,3,4,7,8-PeCDF-13C 2.00 82 1,2,3,7,8-PeCDD-13C 2.00 80 1,2,3,4,7,8-HxCDF-13C 2.00 86 1,2,3,7,8-PeCDF 1.00 1.00 100 1,2,3,6,7,8-HxCDF-13C 2.00 91 2,3,4,7,8-PeCDF 1.00 0.98 98 2,3,4,6,7,8-HxCDF-13C 2.00 87 1,2,3,7,8,9-HxCDF-13C 2.00 87 1,2,3,4,7,8-HxCDD-13C 2.00 94 1,2,3,7,8-PeCDD 1.00 0.99 99 1,2,3,6,7,8-HxCDD-13C 2.00 81 1,2,3.4,6,7,8-HpCDF-13C 2.00 77 1,2,3,4,7,8,9-HpCDF-13C 2.00 73 1,2,3,4,7,8-HxCDF 1.00 0.97 97 1,2,3,4,6,7,8-HpCDD-13C 2.00 69 1,2,3,6,7,8-HxCDF 1.00 0.84 84 OCDD-13C 4.00 63 2,3,4,6,7.8-HxCDF 1.00 1.00 100 1.2,3,7,8,9-HxCDF 1.00 1.00 100 1,2,3,4-TCDD-13C 2.00 NA 1.2,3,7,8,9-HxCDD-13C 2.00 NA

1,2,3,4,7,8-HxCDD 1.00 1.00 100 2,3.7,8-TCDD-37CI4 0.20 79 1,2,3,6,7.8-HxCDD 1.00 0.97 97 1,2,3,7,8,9-HxCDD 1.00 1.02 102

1,2,3,4,6,7.8-HpCDF 1.00 1.03 103 1,2,3,4,7,8.9-HpCDF 1.00 1.03 103

1,2,3,4,6,7,8-HpCDD 1.00 1.17 117

OCDF 2.00 2.52 126 OCDD 2.00 3.68 184 P id Qs = Quantity Spiked Qm = Quantity Measured Rec. = Recovery (Expressed as Percent) P = Recovery outside of target range X = Background subtracted value Nn = Value obtained from additional analysis NA = Not Applicable * = See Discussion Report No.... 1061946

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

CITY_21MC100_003015720

NYC-WTC_000207705

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NYC-WTC_000207705Source: NYC Law Department, mirrored locally

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