NYC-WTC_000233286

NYC 9/11 Public Portal Document

room of the personal decontamination system enclosure. The equipment room will also be used as a waste washroom. (See Figure 3 in this Section) (6) Plastic Sheeting. Waste decontamination system enclosures constructed at the work site shall use at least two (2) layers of six (6) mil fire-retardant plastic sheeting on walls, ceiling and floor. At least two (2) layers of six (6) mil fire-retardant reinforced plastic sheeting shall be used for flooring protection of these areas. (7) Enclosure Security. The waste decontamination system enclosure and regulated abatement work area airlock(s) (when remote decontamination systems are used) shall be constructed with lockable doors to prevent unauthorized entry. Enclosures systems located within 25 feet of an area of public access shall be fully framed and hard-wall sheathed for safety. (8) Drains. The waste washroom shall be equipped with a wash bin of sufficient size to perform waste container washing operations and shall have a submersible pump installed to collect waste water and deliver it to the shower wastewater filtration system where it shall be filtered in accordance with paragraph (b)(9) of this Section. Waste shall be transferred only during times when the showers are not in use. (9) Shower/Washroom Alternative - Small Asbestos Project. For Small asbestos projects with only one (1) exit from the regulated abatement work area, the shower room may be used as a waste washroom. The Clean room shall not be used for waste storage, but shall be used for waste transfer to carts, which shall be immediately removed from the enclosure. (See Figure 4 in this Section) (f) Waste Decontamination System Enciosure - When Remote Personai Is Allowed. When a remote personal decontamination system enclosure is allowed and utilized for a regulated abatement work area, the following requirements shall apply: (1) Minor Size Regulated Abatement Work Area. No specific waste decontamination system enclosure is required for minor size regulated abatement work areas. The waste generated shall be immediately bagged/containerized within the regulated abatement work area. (2) Small & Large Size Regulated Abatement Work Areas. (i) Washroom. An additional chamber shall be constructed within the regulated abatement work area, attached to the existing airlock used to access the work area. The washroom/airlock combination shall be utilized as the contiguous waste decontamination enclosure for waste bagging/containerization and waste transfer activities. The washroom shall be constructed and supplied with equipment/materials consistent with waste decontamination system enclosure washroom requirements for contiguous personal and waste decontamination system enclosures.

12 NYCRR56 Subpart?, Page 57

CITY_21MC100_0 03235077

NYC-WTC_000233343