Preliminary scope of work document for cleaning 114 Liberty Street,

NYC 9/11 Public Portal Document

December 17, 2002 114 LIBERTY STREET REMOVAL OF DUST, DEBRIS, AND CONTAMINATED MATERIALS

C. Damage and defects in the decontamination enclosure system shall be repaired immediately upon discovery.

D. At any time during the abatement activity, if visible emissions are observed, or elevated fiber or metals levels outside the work area are measured, or if damage occurs to barriers, abatement shall stop. The source(s) of contamination shall be located, the integrity of the barriers shall be restored and extended to include the contaminated area, and visible residue shall be cleaned up using appropriate HEPA-vacuuming and wet cleaning procedures.

E. All inspections and observations shall be documented in the daily project log by the supervisor.

3.05 SIGNS:

A. Post an approximately 20 inch by 14 inch manufactured caution sign at each entrance to the Work Area displaying the following legend with letter sized and styles of a visibility required by 29 CFR 1926:

1. Provide signs in English, Spanish and the predominant language of the abatement workers.

2. Legend:

DANGER ASBESTOS CANCER AND LUNG DISEASE HAZARD AUTHORIZED PERSONNEL ONLY RESPIRATORS AND PROTECTIVE CLOTHING ARE REQUIRED IN THIS AREA

3. Provide spacing between respective lines at least equal to the height of the respective upper line.

B. Post an approximately 10 inch by 14 inch manufactured sign at each entrance to each Work Area displaying the following legend with letter sized and styles of a visibility at least equal to the following:

1. Provide signs in English, Spanish and the predominant language of the abatement workers.

2. LEGEND NOTATION

NO FOOD, BEVERAGES OR TOBACCO PERMITTED 314" Block

ALL PERSONS SHALL DON PROTECTIVE 3/4"Block CLOThT OVERINGS) BEFORE ENTERING

END OF SECTION 11

49 © AMBIENT GROUP, INC. -2002 DECONTAMINATION UNITS

NYC-WTC 000155577