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Chain of Custody Form Instructions for WTC Building Sampling

Machine-extracted title · confidence 100%

Instructions and sections for collecting sample location data from a specific building interior.

NYC-WTC_000149537–000149682

Folder label: “ATSDR/DHAC_ASTM

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NYC 9/11 Public Portal Document

Results From Air Samples Results From Dust Samples

Building Fibers In Air Asbestos In SVF in Air Asbestos In Asbestos In Dust SVF In Dust Number Sample Location PCM (f/cc) Air TEM (f/cc) SEM(f/cc) DustPLM(%) TEM(%) PLM (%) 5 Outside co-located 0. 32 Not Sampled Not Sampled Not Sampled 5 Common 0.002 Not Sampled Not Sampled Not Sampled 5 Residence 1 0.002 <1 <1 10 5 Residence 2 <.001 ND <1 20

6 Outside <.001 Not Sampled Not Sampled Not Sampled 6 Common <.001 ND <1 10 6 Res 2 colocated 0.002 Not Sampled Not Sampled Not Sampled 6 Residence 1 <.001 ND ND 15 6 Residence 2 <.001 ND ND 15

7 Outside <.001 ND 1.7 35 7 Common 0.001 ND ND 5 7 Residence 1 0.001 ND ND ND 7 Residence 2 <.001 ND ND 5 7 Window sill (R2) Not Sampled Not Sampled Not Sampled ND ND 40

8 Outside 0.001 Not Sampled Not Sampled Not Sampled 8 Common 0.002 ND ND ND 8 Residence 1 0.003 ND ND ND 8 Residence 2 0.002 ND ND ND

9 Outside <.001 Not Sampled Not Sampled Not Sampled 9 Common 0.001 ND ND 7 9 Common co-located 0.001 Not Sampled Not Sampled Not Sampled 9 Residence 1 0.001 ND <1 2 9 Residence 2 0.003 ND <1 5

10 Outside 0.001 ND ND ND 10 Common 0.002 ND 1.5 20 10 Common, TEM re-analysis <1 10 Residence 1 0.001 ND ND 15 10 Residence 2 0.001 ND ND 10

11 Outside <.001 Not Sampled Not Sampled Not Sampled 11 Common <.001 ND ND ND 11 Common co-located <.001 Not Sampled Not Sampled Not Sampled 11 Residence 1 <.001 ND <1 ND 11 Residence 2 <.001 ND 1.5 ND

12 Outside <.001 Not Sampled Not Sampled Not Sampled

101

NYC-WTC_000149573

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NYC-WTC_000149573Source: NYC Law Department, mirrored locally

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