HVAC monitoring addendum to scope of work, August 2002

NYC 9/11 Public Portal Document

ADDENDUM #2 World Trade Center Dust Cleaning Program Monitoring Contract Scope of Work

2. The minimum personal protective equipment required for use by the Environmental Professional includes:

a. a supply of disposable protective coveralls b. a supply of disposable protective gloves c. safety passes d. respiratory protection as specified in item 3 below

3. The Environmental Professional shall be capable of wearing and shall be provided with a PlOO air purifying respirator with appropriate medical determination, fit testing and training as required under OSHA’s personal protective equipment standard.

4. The Environmental Professional is responsible for:

a. ensuring that no asbestos-containing materials are disturbed during the evaluations; b. determining which personal protective equipment will be used by the HVAC/Electrical Professional, the Sheet Metal Professional and by the Environmental Professional during the evaluation; and c. collecting any bulk, wipe, microvac or tape-lift samples that are necessary to complete the evaluation; d. making determinations required in Item 6.3; and e. cleaning up any debris that may be disturbed as a result of the evaluation using a HEPA vacuum.

6.0 EVALUATION PROCEDURES

6.1 General

Ventilation systems are likely to vary widely in type, configuration and complexity. This evaluation procedure applies considers three general categories of ventilation systems that may be encountered in residential buildings in lower Manhattan:

1. Ventilators, wall air conditioning units and window air conditioning units in common spaces;

2. Fan coil or heat pump units in common spaces; and

3. Central systems with heating and/or cooling capabilities.

Wall air conditioning units and window air conditioning units which serve an individual residence are not included in this evaluation procedure. These units will be cleaned during the cleaning of residential spaces.

NYC-WTC_000163417