NYC-WTC_000233286

NYC 9/11 Public Portal Document

Table 2 ASBESTOS PROJECT AIR SAMPLING AND ANALYSIS REQUIREMENTS Air Sampling Phase I B Phase II A Phase II B Phase II C Requirements Background Air Work Area Asbestos Final Cleaning & by Sampling Preparation Handling Clearance Air Asbestos Project & Air Sampling Air Sampling Regulated Abatement Sampling Work Area Size

5 Inside Regulated 1 per decontamination entrance/exit 5 Inside Regulated Abatement Work Area Abatement Work Area

5 exhausts 5 Outside Regulated 5 Outside Regulated Required 2 at critical barriers Abatement Work Area Abatement Work Area in in Building/structure ® 1 outside the building/structure Building/structure ®

SMALL ASBESTOS

SIZE REGULAI ED

3 Inside Regulated 3 Inside Regulated Abatement Work Area Abatement Work Area Minimum Samples & & 3 Outside Regulated 0 3 Outside Regulated Required Abatement Work Area Abatement Work Area in in Building/structure Building/structure ®

_______________ 1 Inside Regulated Abatement Work Area Minimum Samples 0 0 & Rom lirorl P f 1 Outside Regulated Abatement Work Area

Notes: (1) For sample location and total number required, see Subparts 56-6 through 56-9. (2) 1 sample outside the building/structure if entire building/structure is regulated abatement work area. (3) Required on glove bag failure or loss of integrity, or tent failure or loss of integrity. (4) Required for an Incidental Disturbance Project or if minor size regulated abatement work area is part of small or large asbestos project. (5) Required for all OSHA Class I and Class II Friable ACM asbestos projects. (6) During IIC final cleaning stage, air sampling as per Phase IIB is required. (7) One additional inside sample shall be required for every 5,000 sq. ft. above 25,000 sq. ft. of floor space within the regulated abatement work area.

12 NYCRR56 Subpart 4, Page 40

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NYC-WTC_000233326