NYC-WTC_000220326

NYC 9/11 Public Portal Document

3/11/2003 PASC - Certificate ofAnalysis Page 2 of 5

R02090957 R02090957 R02090957 R02090957 R02090957 Client ID: 06A 07A OSA 09A lOA Lab No.; 060290 02 060291 02 060292 02 060293 02 060323 02 Date Sampled; 12-Sep-2002 12-Sep-2002 12-Sep-2002 12-Sep-2002 12-Sep-2002 Component Units

Total Tetrachlorodibenzofurans pg 69 <2.9 88 330 78 Total Pentachlorodibenzofurans 19 <4.3 38 340 23 Total Hexachlorodibenzofurans 9.7 <1.2 15 170 8.6 Total Heptachlorodibenzofurans <13 <1.8 <13 20 <9.7 Octachlorodibenzofuran II 6.7 <3.8 11 72 9.9 Total Tetrachlorodibenzo-p-dioxins 89 9.9 160 360 120 Total Pentachlorodibenzo-p-dioxins 23 <3.8 13 370 23 Total Hexachlorodibenzo-p-dioxins 5.1 <13 15 440 21 Total Heptachlorodibenzo-p-dioxins II 38 <3.3 60 300 21 Octachlorodibenzo-p-dioxin 210 16 210 890 47 Internal Recoveries % 2,3,7,8-T4CDF-l3C12 106 83 84 102 93 2,3,7,8-T4CDD-13C12 91 74 73 88 87 1,2,3,7,8-P5CDF-13C12 119 89 84 101 99 1,2,3,7,8-P5CDD-13C12 118 88 83 98 98 1,2,3,4,7,8-H6CDF-13C12 98 94 85 97 96 1,2,3,6,7,8-H6CDD-13C12 94 85 78 90 92 1,2,3,4,6,7,8-H7CDF-13C12 93 86 81 100 91 1,2,3,4,6,7,8-H7CDD-13C12 89 78 77 97 93 OCDD-13C12 81 68 68 84 87

2,3,7,8-C14-Dibenzofuran (DB5) pg 13 <2.9 <23 <56 <18 2,3.7,8-CI4-Dibenzo-p-dioxin <3.3 <4.8 <3.8 <4.7 <2.4 1,2,3,7,8-C15-Dibenzofuran <5.2 <4.1 <6.8 12 4.8 2,3,4,7,8-C15-Dibenzofuran <5.5 <4.4 <7.2 32 5.6 1,2,3,7,8-C15-Dibenzo-p-dioxin II <2.9 <3.8 <3.6 <6.0 <2.2 1,2,3,4,7,8-C16-Dibenzofuran 5.9 <1.2 7.4 51 4.8 1,2,3,6,7,8-C16-Dibenzofuran 3.1 <0.99 2.9 20 <2.8 2,3,4,6,7,8-C16-Dibenzofuran <2.5 <1.3 <2.8 <14 <3.3 1,2,3,7,8,9-CI6-Dibenzofuran <1.9 <1.4 <3.1 <4.6 <3.5 l,2,3,4,7,8-C16-Dibenzo-p-dioxin <3.5 <4.0 <4.4 <6.1 <3.0 l,2,3,6,7,8-C16-Dibenzo-p-dioxin II <2.5 <2.9 <3.2 14 <2.7 l,2,3,7,8,9-C16-Dibenzo-p-dioxin II <2.7 <3.1 <3.4 24 <2.4 1,2,3,4,6,7,8-C17-Dibenzofuran <11 <1.6 <12 <89 <8.7 1,2,3,4,7,8,9-CI7-Dibenzofuran <1.6 <1.7 <6.6 <2.8 <11 l,2,3,4,6,7,8-CI7-Dibenzo-p-dioxin 38 <3.3 35 160 12 1,2,3,4,6,7,8,9-C18-Dibenzofuran 6.7 <3.8 11 72 9.9 l,2,3,4,6,7,8,9-C18-Dibenzo-p-dioxin 210 16 210 890 47

2,3,7,8-TCDF (DB225) pg <4.1 <4.2 <5.4 12 <3.6 Internal Recoveries % 2,3,7,8-TCDF-13C12 96 79 79 97 97

TEO based on Nato Factors 6.3 5.6 7.6 24 6.6

Client:Philip Analytical Services Inc Project:Misc.

CITY_21MC1OO_OO29172O8

NYC-WTC_000220327