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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

24 Common ND <1 0.001 NA 24 Resi ND ND 0.001 NA 24 Res 2 ND ND O.OOS <.001 24 Res 2 X Not Sampled Not Sampled 0.005 <.001 Building 24 Notes: PCM results exceeded 0.003 f/cc in Residence 2 in two samples; Asbestos fibers were not detected In either sample by TEM analysis.

Building 26 PLM [%] TEM[%] PCM [f/cc] TEM [f/cc] 25 Outside Not Sampled Not Sampled <.001 NA 25 Common ND ND <.001 NA 25 Resi ND ND <.001 NA 25 Res 2 ND ND 0.001 NA

Building 26 PLM [%] TEM [%] PCM [f/cc] TEM [f/co] 26 Outside Not Sampled Not Sampled 0.001 NA 26 Common ND ND 0.004 <.001 26 Resi ND ND 0.001 NA 26 Res 2 ND ND 0.012 <.001 Building 26 Notes: PCM results exceeded 0.003 f/cc in the common area and Residence 2; Asbestos fibers were not detected in either sample by TEM analysis.

Building 27 PLM [%] TEM [%] PCM [f/cc] TEM [f/cc] 27 Outside ND <1 <.001 NA 27 Common ND <1 <.001 NA 27 Resi ND <1 <.001 NA 27 Res 2 ND ND <.001 NA

Building 28 PLM [%] TEM [%] PCM [f/cc] TEM [f/co] 28 Outside ND ND <.001 NA 28 Common ND ND 0.001 NA 28 Resi ND Not Sampled <.001 NA 28 Res 2 ND ND 0.002 NA Building 28 Notas: There was not enough material left to analyze the Residence 1 dust sample by TEM.

Building 28 PLM [%] TEM[%] PCM [f/cc] TEM [f/cc] 29 Outside ND ND <.001 NA 29 Common ND ND <.001 NA 29 Real ND ND <.001 NA 29 Res 2 ND ND <.001 NA

Building 30 PLM [%] TEM [%] PCM [f/cc] TEM [f/cc] 30 Outside Not Sampled Not Sampled Not Sampled NA 30 Common Not Sampled Not Sampled Not Sampled NA 30 Resi ND ND <.001 NA 30 Res 2 ND ND <.001 NA

Comparison Buildings Above 69th Street

Building 31 PLM [%] TEM [%] PCM [f/cc] TEM [f/cc] 31 Outside Not Sampled Not Sampled <.001 NA

NYC-WTC_000149610

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NYC-WTC_000149610Source: NYC Law Department, mirrored locally

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