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125 CEDAR STREET

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000156995–000157005
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NYC 9/11 Public Portal Document

■ 3/11/2003 PASC- Certificate ofAnalysis Page 1 of 5

Method Blank Blank R02090951 R02090951 Client ID: Blank 10/04 Spike# I Spike#l OlA 02A Lab No.: 060266 02 060266 02 %Recoveries 060267 02 060268 02 Date Sampled: 12-Sep-2002 12-Sep-2002 12-Sep-2002 12-Sep-2002 Component MDL Units

Total Tetrachlorodibenzofurans pg <3.9 1100 <2.0 130 Total Pentachlorodibenzofiirans 17 6400 <2.2 55 Total Hexachlorodibenzofurans 52 10000 <1.6 45 Total Heptachlorodibenzofurans tt 42 5100 <2.1 46 tt Octachlorodlbenzofiiran 67 4400 3.5 33 Total Tetrachlorodibenzo-p-dioxins 4.3 1100 4.3 110 Total Pentachlorodibenzo-p-dioxins 12 2700 <2.9 16 Total Hexachlorodibenzo-p-dioxins 35 7900 <8.9 <35 Total Heptachlorodibenzo-p-dioxins 26 2600 3.9 88 Octachlorodibenzo-p-dioxin 65 4900 16 390 Internal Recoveries % 2,3,7,8-T4CDF-13CI2 65 70 70 82 72 2,3,7,8-T4CDD-13C12 74 84 84 79 75 1,2,3,7,8-P5CDF-13C12 43 70 70 88 61 1,2,3,7,8-P5CDD-13C12 48 76 76 105 67 1,2,3,4,7,8-H6CDF-13C12 72 85 85 86 73 1,2,3,6,7,8-H6CDD-13C12 74 88 88 91 76 1,2,3,4,6,7,8-H7CDF-13C12 82 86 86 83 71 1,2,3,4,6,7,8-H7CDD-13C12 75 89 89 81 68 OCDD-13C12 84 108 108 94 75

2,3,7,8-C14-Dibenzofuran (DB5) pg <3.9 1100 105 <2.0 20 2,3,7,8-C14-Dibenzo-p-dioxln 4.3 1100 109 <2.6 <2.5 1,2,3,7,8-C15-Dlbenzofuran <9.6 2900 114 <2.1 4.0 2,3,4,7,8-C15-Dibenzofuran 17 3500 139 <2.3 <5.0 1,2,3,7,8-C15-Dibenzo-p-dioxin « 12 2700 110 <2.9 <3.6 1,2,3,4,7,8-C16-Dibenzofiiran 11 2400 97 <1.4 8.2 1,2,3,6,7,8-C16-Dibenzofuran 14 2600 102 <1.4 4.5 2,3,4,6,7,8-C16-Dibenzofuran <14 2500 100 <1.7 10 1,2,3,7,8,9-C16-Dlbenzofuran 29 2500 98 <2.0 <2.5 1,2,3,4,7,8-C16-Dibenzo-p-dioxin <9.1 2700 108 <4.6 <2.4 1,2,3,6,7,8-C16-Dibenzo-p-dioxin 14 2600 105 <4.5 <3.4 1,2,3,7,8,9-C16-Dibenzo-p-dioxin 22 2600 102 <4.4 <2.3 1,2,3,4,6,7,8-CI7-Dibenzofuran 18 2600 104 <1.8 21 1,2,3,4,7,8,9-CI7-Dibenzofuran « 25 2400 97 <2.5 <3.1 1,2,3,4,6,7,8-C17-Dibenzo-p-dioxin 26 2600 103 3.9 48 1,2,3,4,6,7,8,9-C18-Dibenzofuran 67 4400 87 3.5 33 l,2,3,4,6,7,8,9-CI8-Dibenzo-p-dioxin 65 4900 99 16 390

2,3,7,8-TCDF (DB225) pg 13 Internal Recoveries % 2,3,7,8-TCDF-13CI2 88

TEQ based on Nato Factors pg 26.0 3.8 8.7

ClienfcPhilip Analytical Services Inc Project:Misc.

NYC-WTC_000156997

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NYC-WTC_000156997Source: NYC Law Department, mirrored locally

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