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NYC-WTC_000233286

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000233286–000233396
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NYC 9/11 Public Portal Document

SUBPART 56-6 PHASE 1B: BACKGROUND AIR SAMPLING

56-6.1 General Requirements. See Subpart 56-4 56-6.2 Number and Location of Background Air Samples. (a) Phase 1 B Background Sampling - Large Asbestos Project. Prior to asbestos abatement contractor mobilization and starting Phase II A, a minimum of five (5) samples shall be taken inside the intended regulated abatement work area, and a minimum of five (5) samples shall be taken outside of the intended regulated abatement work area within the building or structure in uncontaminated areas that are within ten (10) feet of the anticipated locations of isolation or critical barriers. If the entire building/structure is the intended regulated abatement work area, the five (5) air samples outside the regulated abatement work area shall be eliminated, and a minimum of one background ambient air sample shall be taken outside of the building or structure, as close as possible to the area where abatement work is to be conducted. See Table 2 in Section 56- 4.9 (b) Phase I B Background Sampling - Small Asbestos Project. Prior to asbestos abatement contractor mobilization and starting Phase II A, a minimum of three (3) samples shall be taken inside the intended regulated abatement work area and three (3) samples shall be taken outside of the intended regulated abatement work area within the building or structure in uncontaminated areas that are within ten feet of the anticipated locations of isolation or critical barriers. If the entire building/structure is the intended regulated abatement work area, the three (3) air samples outside the regulated abatement work area shall be eliminated, and a minimum of one (1) background ambient air sample shall be taken outside of the building or structure, as close as possible to the area where abatement work is to be conducted. See Table 2 in Section 56-4.9 (c) Phase I B Background Sampling - Minor Asbestos Project. Not Required. 56-6.3 Establishment of Background Level. The most elevated air sample result per group of inside work area or outside work area background air samples comprise the established background level(s) for that intended regulated abatement work area.

12 NYCRR56 Subpart 6, Page 47

CITY_21MC100_0 03235067

NYC-WTC_000233333

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NYC-WTC_000233333Source: NYC Law Department, mirrored locally

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NYC-WTC_000127792 · Box DEP Box 52

NYC DEP Asbestos Project Notification form for abatement activities at a facility in the Phase 1 Decontamination Plan binder.

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