NYC 9/11 Public Portal Document
World Trade Center Indoor Dust Cleaning Program
Cleaning Contract WTC-ARA, WTC-ARB, WTC-ARC, WTC-ARD
August 21, 2002
ADDENDUM #2
Scope of Work for World Trade Center Indoor Dust Cleaning Program is amended as follows:
Page 2, Section B. Roles and Responsiblilities,
Paragraph 2 An Independent monitoring Contractor will perform DELETE
Page 2, Section B. Roles and Responsiblilities,
#6. Personal Air Monitoring - DELETE
Page 4, Section D. Specifications
ADD
Personal air monitoring shall be performed by the Cleaning Contractor in accordance
with US DOL OSHA requirements. Personal air monitoring will be performed on a
minimum of one employee of the Cleaning Contractor per shift per residence during for
the first 6 weeks of cleaning operations. This may be extended based on a determination
made by EPA and OSHA. Thereafter personal air monitoring samples will be taken at
one sample per day. Air samples will be collected in accordance with the procedures
specified in NIOSH 7400 Method and analyzed by phased contrast microscopy (PCM)
followed by Asbestos Hazard Emergency Response Act (AHERA) transmission electron
microscopy (TEM). Analysis of these samples shall be the responsibility of the Cleaning
Contractor. Results of analysis shall be provided to EPA by the Cleaning Contractor in
an approved electronic format within 24 hours of collection. Copies of the results shall
also be sent immediately to OSHA and the Monitoring Contractor. The Cleaning
Contractor will make these results available to the employees or their designated
representatives for their review in accordance with 29 CFR 1910.1020 and 29 CFR
1926.1101.
CITY_21MC100_001592242
NYC-WTC_000186498
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