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Document / 146 pages

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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Scanned page image, NYC-WTC_000149545
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

How many windows are still broken? L. Distance from sample location to closest broken/open window .(feet) NA

M. Which side of the building is this window? Side 1 Side 2 Sides Side 4 Other Side ( 3 N. Is there an HVAC system for the common area? Y N Not Sure (If No or Not Sure, skip to SECTION 5) Is it separate from the building’s HVAC system? Y N Not Sure (If No or Not Sure, skip to SECTION 5) What type of filter is used? High Efficiency Filter Regular Filter Not Sure Filter Name Filter Size Filter Type Paper Electrostatic Fiberglass _____ Other (describe)

Filter Efficiency Rding___________________ Has the filter been changedsince the WTC collapse? Y N Not Sure If yes, date Have the ducts been cleaned since the WTC collapse? Y N Not Sure If yes, date Does system recycle air? Y N Not Sure If yes, what percent of the air is recycled? % Not Sure

Has the system been recycling since the WTC collapse? Y N Not Sure O. Has the HVAC system been SERVICED since the WTC collapse? Y N Not Sure If yes, date P. Has the HVAC system been CLEANED since the WTC collapse? Y N Not Sure If yes, date Q. Was the HVAC fan ON during the entire air sampling period? Y N Not Sure If NO, how long did the fan run (in hours)? hours Not Sure

19

NYC-WTC_000149545

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NYC-WTC_000149545Source: NYC Law Department, mirrored locally

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NYC-WTC_000149798

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