Document MJpwg7kbpyzQZ4jR6qw3xR5Ga

22778 Federal Register / Vol. 51. No. 119 / Friday. June 20.-: 1-986 / Rules and Regulations cannot be removed from the work area should be covered with a B-mil-thick polyethylene plastic sheeting that is securely taped with duct'tape or plastic tape to achieve an airtight seal around the object. Constructing the Enclosure When all objects have either been removed from the work area or covered with plastic, all penetrations of the floor, walls, and ceiling should be sealed with 8-mil polyethylene plastic and tape to prevent airborne asbestos from,escaping into areas outside the work area of from lodging in cracks around the penetrations. Penetrations that require sealing are typically foundaround electrical conduits, telephone wires, and water supply and;drain pipes. A single.entrance to be used for access and egress to the work area should be selected, and-all other doors and windows should be sealed.with'tape or be covered with 6-mil polyethylene plastic sheeting and securely taped. Covering windows and unnecessary doors with a layer of polyethylene before covering the walls provides a second layer of protection and saves time in installation because it reduces the number of edges that must be cut and . taped. All other surfaces such as support columns, ledges, pipes! and other surfaces should.alsb be covered with polyethylene plastic sheeting and taped before the walls themselves are completely covered with sheeting. Next a thin layer oiT spray adhesive should be sprayed along the top of all walls surrounding the enclbsed work area, close to the waU-ccilihg.lhterface, and a layer of polyethylene plastic 'sheeting should be stuck to.this adhesive and taped! The entire inside surfaces of all Wall.areas ere covered in this manner, and the-sheeting.overthe walls is extended across, the floor area until it meets in the center of the area, where it to taped to form a single layerof material encasing the entire ropn) except for the ceiling. Affinal. layer of plastic-sheeting isjhen laid across the pjasHc^cpvered floor area and the ` walls tp a levej oT 2 feet or.8o; this layer. provides.& secohd protective layer`of plastic sheetingoverthenoor.which'canthen be removed and disposed of easily after the asbestos-containing material that has dropped to the floor has been bagged and removed. Building Hygiene Facilities Paragraph (j) of the final standard mandates that employers involved in asbestos removal, demolition, or renovation operations provide their employees with hygicne'facilities to be used to decontaminate asbestos-exposed workers, equipment, and clothing before such employees leave the work area. These decontamination facilities consist of: (1) A clean change room: (2) A shower, and (3) An equipment room. The clean change room is an area in which employees remove their street clothes and don their respirators and disposable protective clothing. The clean room should have hook9 on the wall or be equipped with lockers for the storage of workers' clothing and personal articles. Extra disposable coveralls and towels can also be stored in the clean change room. The shower should be contiguous with both the clean and dirty change room (see Figure F-3) and should be used by all workers leaving the work area. The shower should also be used to clean asbestos-contaminated equipment and materials, such as the outsides of asbestos waste bags and hand tools usediin the removal process. WINOOWS ANO OOOftS COVCfttO WITH PLASTIC Source: EPA ISAS. Asbestos Waste Management Guidance (EPA/53I^W-fl$-007). Figure F-4. Cutaway View.of Enclosure and Hygiene Facilities The equipment room (also caUed-.the dirty change room) tothe area where workers remove their protective coveralls and where equipment that is to be used in the work area can be stored. The equipment room ehould be lined with.^mil-thick.polyethylene[plastic.-; sheeting fn the same way as Wdsldone in the work area enclosure. Two layers of S^mil polyethylene plastic sheeting that aremdt taped together from a double flap or barrier between thecequipment robm^anddhe work; afea.and between the shower and the clean changeToom (see Figure F-4).- - GLEASON-OOI026