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Chain of Custody: DEP Cleanup Samples, October 24, 2002

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Chain of custody document from PSC Analytical Services regarding the receipt and analysis of samples for the DEP cleanup project.

NYC-WTC_000130104–000130402
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NYC 9/11 Public Portal Document

10/23/2002 PASC- Certificate of Analysis - Page I of 5

R02090957 R02090957 R02090957 R02090957 R02090957 Client ID: OI A 02A 03A 04A 05A Lab No.: 060285 02 060286 02 060287 02 060288 02 060289 02 Date Sampled: 12-Sep-2002 12-Sep-2002 12-Sep-2002 12-Sep-2002 12-Sep-2002 Component Units

Total Tetrachlorodibenzofurans pg 100 270 150 860 160 Total Pentachlorodibenzofurans 250 97 65 720 77 Total Hexachlorodibenzofurans 70 32 20 350 33 Total Heptachlorodibenzofurans 13 <20 <15 32 <5.3 Octachlorodibenzofuran 17 13 13 41 7.9 Total Tetrachlorodibenzo-p-dioxins 940 310 150 1200 160 Total Pentachlorodibenzo-p-dioxins 370 130 28 1400 9.6 Total Hexachlorodibenzo-p-dioxins 110 55 29 670 18 Total Heptachlorodibenzo-p-dioxins 74 66 58 200 59 Octachlorodibenzo-p-dioxin 290 230 220 550 140 Internal Recoveries 2,3,7.8-T4CDF-I3C12 86 83 85 87 94 2,3,7,8-T4CDD-13Cl2 91 85 85 91 82 1,2.3.7.8-P5CDF-13C12 90 88 90 76 102 1,2,3,7,8-P5CDD-I3C12 93 92 94 80 99 1.2.3,4,7,8-H6CDF-I3C12 91 83 90 95 92 1,2,3,6.7,8-H6CDD-13C12 96 88 92 93 87 1,2,3,4,6,7,8-H7CDF-I3C12 85 81 85 86 89 1,2,3.4,6.7,8-H7CDD-13C12 88 87 90 93 87 OCDD-13C12 93 88 97 100 76

2.3,7,8-C14-Dibenzofuran (DB5) pg <70 <42 <21 <170 <25 2,3,7,8-CI4-Dibenzo-p-dioxin <2.8 <2.1 <3.2 6.9 <5.1 1,2,3,7,8-CI5-Dibenzofuran <14 <5.9 <3.3 37 <1.5 2,3,4,7,8-C15-Dibenzofuran <19 9.8 6.9 <68 <1.6 1,2,3,7.8-CI5-Dibenzo-p-dioxin <4.0 <2.6 <2.6 <17 <1.I 1,2,3,4.7.8-C16-Dibenzofuran 19 10 7.9 83 9.6 1.2.3.6.7,8-CI6-Dibenzofuran 7.4 <3.5 <3.7 31 <4.6 2,3,4.6,7,8-C16-Dibenzofuran 7.0 <4.2 <4.4 30 4.0 1,2.3.7,8.9-C16-Dibenzofuran <3.5 <4.4 <4.7 3.3 <3.8 1,2.3.4,7.8-CI6-Dibenzo-p-dioxin <5.2 <4.7 <6.9 9.0 <4.8 1,2,3,6.7.8-CI6-Dibenzo-p-dioxin <4.7 <4.2 <6.2 17 <3.5 1.2.3.7.8.9-CI6-Dibenzo-p-dioxin <4.3 <3.8 <5.6 25 <3.8 1.2,3,4,6.7,8-C17-Dibenzofuran <19 <18 <14 <77 <13 1.2,3,4,7,8,9-C17-Dibenzofuran <II <23 <17 <1.8 <6.2 1.2.3,4.6.7,8-CI7-Dibenzo-p-dioxin 40 34 32 100 <3.3 1.2.3.4.6.7.8.9-CI8-Dibenzofuran 17 13 13 41 7.9 1,2.3.4,6.7.8.9-CI8-Dibenzo-p-dioxin 290 230 220 550 140

2.3.7.8-TCDF (DB225) pg 10 5.4 4.4 27 <6.1 Internal Recoveries % 2.3.7.8-TCDF-13C12 97 90 92 100 90

TEQ based on Nato Factors pg 4.1 6.5 4.8 30.3 1.5

Client:Philip Analytical Services Inc Project:Misc.

NYC-WTC 000130123

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NYC-WTC_000130123Source: NYC Law Department, mirrored locally

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NYC-WTC_000130052 · Box DEP Box 53

Chain of custody document from PSC Analytical Services regarding the receipt and analysis of samples for the DEP cleanup project.

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