NYC-WTC_000233286

NYC 9/11 Public Portal Document

abatement contractor. If the property owner is the asbestos abatement contractor for the asbestos project, the owner shall contract with an independent project monitoring firm asbestos contractor for the necessary visual inspection on the asbestos project. A complete abatement scope of work for the asbestos project shall be provided to the project monitor by the asbestos abatement contractor and property owner, prior to the scheduling of the required visual inspection. An entry shall be made into the asbestos abatement contractor supervisor’s daily log by both the supervisor and the individual performing the inspection, detailing the findings of the visual inspection. The full name and NYSDOL asbestos handling certificate number of the certified individual performing the inspection shall also be documented in the supervisor’s daily log.

(e) Exemption From Multiple Cleaning And Sheeting Removal. When the regulated abatement work area is not required to be plasticized, or when a tent enclosure unit is used, one thorough final cleaning followed by the observance of the appropriate waiting/settling or drying time requirement of this Subpart shall be required. For regulated abatement work areas where one layer of plastic sheeting is allowed, such as the use of spray plastic or pre-demolition asbestos projects, two cleanings (first and final), each followed by observance of the appropriate waiting/settling or drying time requirements of this Subpart is required. Cleanings shall consist of all surfaces in the regulated abatement work area being HEPA vacuumed first and then wet-cleaned.

(f) Waiting/Settling And Drying Times Requirements.

(1) The following waiting and drying times per material abated shall be observed for each stage of cleaning as per this Subpart:

(i) fireproofing, plaster, TSI and other friable materials - 12 hours (ii) abrasive removals of floor tile/mastic with machinery - 12 hours (such as a bead blaster, grit blaster, etc.) (iii) manual removal of floor tiles/mastic - 4 hours (iv) manual abatement of interior non-friable materials - 4 hours (V) Incidental disturbance asbestos project - 4 hours (vi) tent with glovebag abatement of TSI - 2 hours (vii) intact transite panel removals indoors - 2 hours (viii) Exterior non-friable ACM abatement without negative pressure enclosure - None (h) Decontamination of Toois & Equipment. All equipment (except negative air ventilation system) and tools shall be removed from the regulated abatement work area and properly decontaminated as per this Part, prior to commencement of clearance air sampling.

12 NYCRR56 Subpart 9, Page 87

CITY_21MC100_0 03235107

NYC-WTC_000233373