NYC 9/11 Public Portal Document
December 17, 2002 114 LIBERTY STREET
REMOVAL OF DUST, DEBRIS, AND CONTAMINATED MATERIALS
Parameter Clearance Level
Cadmium <4.7ug/ft2
Chromium <465 ug/ft^
Copper <929 ug/ff
Lead <25 ug/ff
Nickel <14 ug/ft^
Zinc <4645 ug/ft^
Dioxins/Furans <0.37 ng/ff**
** - 2,3,7,8-TCDD toxicity equivalents (TEQ)
F. Clearance Failure Criteria and Response Actions
1. If any of the air or wipe samples fail to meet the specified clearance criteria, then the
entire work area shall be re-cleaned and tested for only the specific contaminants) that
failed.
2. The clean up and testing for the parameter(s) that failed shall be repeated until
compliance is achieved. The Contractor shall be responsible for any additional cost
incurred, including the Owner's air monitoring and wipe sampling, due to test results
exceeding the limits prescribed in Item E.
PART 2 - PRODUCTS (Not Applicable)
PART 3 - EXECUTION
3.01 PERSONAL MONITORING:
A. The Owner shall not perform air monitoring to meet the Contractor's OSHA requirements for
personnel sampling or any other purpose. This testing is the sole responsibility of the Contractor
and shall be included in the Contract Sum.
END OF SECTION 05
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© AMBIENT GROUP, INC. - 2002
AIR AND WIPE SAMPLING
NYC-WTC_000155742
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