NYC-WTC_000231878

NYC 9/11 Public Portal Document

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4th 4th 4th Sth Sth Sth Client ID: Floor-07 Floor-OS Floor-09 Floor-07 Floor-08 Floor-09 R03030259. -04A -05A -06A -07A -08A -09A Lab No.: 009196 03 009197 03 009198 03 009199 03 009200 03 009201 03 late Sampled: 05-Mar-2003 05-Mar-2003 05-Mar-2003 05-Mar-2003 05-Mar-2003 05-Mar-2003 Component MDL Units

Total Tetrachlorodibenzofurai pg 85 <1.7 31 100 <1.6 13 Total Pentachlorodibenzofura 66 <1.6 28 36 <2.2 27 Total Hexachlorodibenzofurai 30 <1.8 14 17 <1.5 27 Total Heptachlorodibenzofura 2.9 2.3 4.2 <14 <3.8 5.6 Octachlorodibenzofuran 19 7.1 <11 19 8.2 20 Total Tetrachlorodibenzo-p-di 120 <2.1 35 91 <2.0 24 Total Pentachlorodibenzo-p-d 30 <1.8 4.5 24 <1.7 20 Total Hexachlorodibenzo-p-di 57 <7.0 36 37 <2.7 49 Total Heptachlorodibenzo-p-d 53 20 36 45 20 46 Octachlorodibenzo-p-dioxin 160 56 100 170 61 97 Internal Recoveries % 2,3,7,8-T4CDF-13C12 93 86 84 95 64 97 2,3,7,8-T4CDD-13C12 101 94 97 97 65 101 1,2,3,7,8-P5CDF-13C12 88 93 89 94 91 98 1,2,3,7,8-P5CDD-13C12 79 86 80 89 71 85 1,2,3,4,7,8-H6CDF-13C12 107 105 106 99 78 107 1,2,3,6,7,8-H6CDD-13C12 91 99 98 92 74 95 1,2,3,4,6,7,8-H7CDF-13C12 106 111 113 105 85 112 1,2,3,4,6,7,8-H7CDD-13C12 97 105 109 97 80 103 OCDD-13C12 90 97 104 90 66 99

2,3,7,8-C14-DibenzofLiran (DI pg <21 <8.1 <17 <1.6 <6.6 2,3,7,8-C14-Dibenzo-p-dioxin <2.1 <2.1 <2.1 <3.2 <2.0 1,2,3,7,8-C15-Dibenzofuran 4.6 <1.6 <2.1 <2.9 <2.2 <3.3 2,3,4,7,8-C15-Dibenzofuran 6.0 <1.7 4.2 5.4 <2.3 <3.8 l,2,3(7,8-C15-Dibenzo-p-diox <2.1 <1.8 <2.0 <2.2 <1.7 <4.1 1,2,3,4,7,8-C16-Dibenzofuran 8.9 <1.6 <2.8 <4.0 <1.4 7.0 1,2,3,6,7,8-C16-Dibenzofuran <4.8 <1.6 3.4 <1.3 4.0 2,3,4,6,7,8-C16-Dibenzofuran 3.8 <1.9 2.5 <2.2 <1.5 3.0 1,2,3,7,8,9-C16-Dibenzofuran <2.7 <2.2 <1.8 <1.8 <3.0 l,2,3,4,7,8-C16-Dibenzo-i>dii <2.1 <1.9 <2.2 <1.6 <1.4 <2.3 l,2,3,6,7,8-C16-Dibcnzo-i>dii <2.3 <2.1 <2.5 2.4 <1.6 <2.6 l,2,3,7,8,9-C16-Dibenzo-i>dii <2.1 <2.0 <2.2 2.8 <1.4 <2.3 1,2,3,4,6,7,8-C17-Dibenzofuri <15 <3.5 <8.7 <13 <15 1,2,3,4,7,8,9-Cl7-Dibenzofuri <2.9 <2.4 <2.5 <2.9 <2.3 <3.3 l,2,3,4,6,7,8-C17-Dibenzo-p-( 23 8.0 16 22 8.8 20 1,2,3,4,6,7,8,9-C18-Dibenzof 19 7.1 <11 19 8.2 20 1,2,3,4,6,7,8,9-C18-Dibenzo-] 160 56 100 170 61 97

2,3,7,8-TCDF (DB225) pg 14 <4.9 <5.7 11 <4.4 <2.9 Internal Recoveries % 2,3,7,8-TCDF-13C12 82 75 78 85 53 80

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CITY_DEP_WORBY_CANNATA_SUBP_000051832

NYC-WTC_000231880