Building inspection form, 90 Washington Street, Oct 2002

NYC 9/11 Public Portal Document OCT-04-2002 FRI 04:30 PM FAX NO. P. 10/31

0

hygiene protocol for cleaning roofs contaminated Application: This procedure utilizes wet methods and careful with asbestos containing material (ACM). abatement will be The entire roof shall be considered the work area for entry/access determinations~ . All L certified workers. performed by NYSDOL licensed contractors with NYC DEP be accumulations of visible debris, t e clean-up areas shall For non-gravel or stone covered roofs with localized specified ("specified area") by DEP. shall be included in the specified roof area for For gravel/atone covered roof surfaces, the entire roof clean-up.

the roof and washed. Water shall be collected, The graveVstone shall be taken to a clean-up staging area on filtered, and discharged into the drain/scwer as applicable. adjoining the roof step-off pads located on the roof irm'ne iistely 2. A changing area consisting of two adjacent The clean ps4 shall be adjacent to the entiance/exit. This area shall consist of a clean pad and a change pad. access). The change pad shall be the roof for exterior building interior access way (or at the point of entry to and clean pad) shall consist of two layers of 10- adjacent to the contaminated roof areas. Each pad (change pad and and shall be large enough in facilitate changing mil reinforced plastic on the roof/access way surface recommend, though the exact configuration will decontamination as described herein. A minimum of 4' x 4' is be specific to the roof. onto the (or exterior at the point of entry to the roof) directly 3. Workers shall first step from the building interior coveralls, plastic booties, double suited with disposable clean pad. On the clean pad, each worker shall be The boots shall be wet instead of the plastic bootii s. gloves, and head coverings. Rubber boots may be used worker shall wear a n! inimum of a half-face air- wiped and HEPA vacuumed prior to leaving the roof. Each purifying respirator equipped with HEPA cartridges. by specified roof area included in the ccan-up shall be cleaned 4. All penetrations at the roof within 10 feet of the polyethylene sheeting. wet methods/HEPA vacuum and sealed with 6-mil proceed in a path working sa ey from the entrance/exit- S. Roof cleanup shall begin at the entrsnce/exit and potential for fiber rel arse. Water shall be the primary engineering control to minimize the using wet wiping technique :s with water, mops. rags, 6. Roof surfaces shall be wetted and then wet cleaned or in combination with wet cleaning. brushes, etc. HEPA vacuuming uny also be used as alternative to personal or existing the roof shill observe the 7. Throughout the procedure, all personnel entering unnecessary walking on or disturbance of decontamination practices. Attention shall be paid to limiting be saic'iy adhered to, in order to procedures shall material on the roof These personal decontamination interior of the buildings. minimize the potential for spreading contamination to the wet rnitare, Plant potters, end plastic fun- iture cushions, shall be 8. Solid nonporous objects, such as natal patio fu be HEPA vacuuned, wet wiped, and lightly wiped with damp rags. Wooden objects such as decking shall misting and local HEPA exhs:ust. Woven materials shall brushed with a bristle brush utilizing simultaneous proper laundering a accordance with 29 CFR either be disposed as ACM or bagged and removed off-site for disposed as AC: M waste unless the owner 1901. 1001. Potted plants with visual contamination should be and provisions shall be made to catch the requests deconntination- Potted plants will be repeatedly rinsed, wet-vactnmtS I. }EPA runoff water (i.e. into ACM disposal bags or by using rags and shall be carefully washed. 9. After completion of the above, the specified arts roof Page 3 05/03/02

NYC-WTC 000113554