Document Ran1Kd0xnOJnJjXK4EB8JE647

Federal Register / Voi;. 51, No. 119 / Friday; 'June '20,1986 / Rules and'Regulations 22783 Appropriate work practices are used; - Necessary protective clothing and equipment are used; and 'Appropriate decontamination procedures are being followed. Cleaning the Work Area After all of the asbestos-containing material is removed and bagged, the entire work area should'becleaneduntil itisfree of all visible asbestos dust. All surfaces from which asbestos has been removed should be cleaned by wire brushing the surfaces, HEPA vacuuming these surfaces, and wiping them with amended water. The inside of the.plastic enclosure-should be vacuumed with a HEPA vacuum and wet wiped until there is no visible dus!:iii the enclosure. Particular attention should be given to small horizontal surfaces such as pipes, electrical conduits, lights, and support tracks for drop-ceilings. All.such surfaces should be.free of visible dust before the finalelr samples are collected. Additionalsampling'shouldbeconducted inside the enclosure after the cleanup of the work area has been completed.. Approximately four area samples should be collected for each 5000 square feet of enclosure area. The enclosure should not be dismantledimless the-final samples show asbestos concentrations of leas than the final standard's action level. EPA recommends that a clearance level of 0.01 f/cc be achieved before cleanup is considered complete. A clearance checklist la an effective method or ensuring that all suFfacesare adequately cleaned and (he enclosure is ready to-be dismantled. Figure-F-7 shows a checklist that can be used during the final inspection phase of asbestos abatement, removal, or renovation operations. BikUNO'COOC 4StO-*S4l GLEASON-001031