NYC 9/11 Public Portal Document
[wtc residentiai plan octTs'wpd Page 20 j
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Use of candles, incense, etc.
_Yes __ No
Open windows
_Yes __ No
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Open doors
_Yes __ No
Turn off the heating/AC system fan (it should be on during the entire sampling period) ii
__ Yes __ No
If YES, what time did you turn off the system
9. Have you seen evidence of dust being tracked into the building since the WTC collapse?
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__ Yes __ No
If YES, name/describe the entrj'way locations
Describe the material being tracked indoors
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Is the material still being tracked indoors?
__ Yes __ ^No Can’t tell
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10. Has the exterior of the building been cleaned since WTC event?
__ Yes __ No
11. If YES to Question 10,
Date(s) of cleaning
12. Description of cleaning
sweeping
vacuuming
water spray
high pressure wash
Other (describe)
13. Who conducted the cleaning
Building maintenance !
Cleaning company (provide name)
Other (describe)
14. Was visible dust present?
__ Yes __ No
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