Final notice letter, Sept 2002

NYC 9/11 Public Portal Document 10/31/02 15:83 FAX 516 466 4052 1L REALTY 11019 '718 595 3E+48 P.11 NYCDEP F+S'9JLERD TRJ — OCT-29-2002 14.54

ulldlag Facade Clain-up

contactor with NYCDEP and NYSDOL Work shall be performed by a NYSDOL liccused asbestos asbestos certified workers. building facades. The contactor performing the'cleansng should be expeiianced in cleaning olea ing shall The clean up area shall be specified (4 spccied area") by DEP. The area below the odedisposal as ACM for be covered with a layer of polyethylene Sheeting. All debris must be collected waste labeled directly upon removal from tat® surface■ (i.e, All waste must be double bagged in ACM bags.) Running water or water runoff on the building facade is not permitted. the facade Building occupants shall be hoed prior to the facade cleaning. Access to he sheet below wind cleaning shall be restricted and marked, with caution tape. CIe ing shall not be performed during speeds greater than 20 mph.

All HVAC systems and air conditioners shall be tned of All windows shall be closed during the cleaning of the building. Sam air ondidcners and windows may rs4uiae sealing with duct tape to prevent water pe ne on. . 1 1 T._rrt ~~ l ►i,r ~ ri ::.. i.n . .~ ► a 1. Ica •.., ,Y . /

All horizontal surfaces and all wows on the facade sbsl be cleaned of large bulk material by wetting and hand braabimg or scraping with non-metallic bristle bzushes ornon-metallic sctspers, by wet wiping and/ or by IEPA vactnuning from top to bottom. Only water shall be used for wet wiping and low- pressure washing. Detergents, solvents, aslditivcs, and any other chemical cleaning agents are prohibited, The removed material shall be immediately placed into containers (e.g. bags). Windows shall be wet wiped. Free running water shall not be evident during this procedure. Power for REPA vacuums shall be supplied through ground fault interrupter.

After completion of debris removal, the specified area shall be carefully washed. A low pressure washing technique, moving from top to both, shall be employed to in1n4mie water bounce-back. Facades shall be washed with a low-pressure wash not to exceed 250 psi,

At the completion of work, a visual inspeclion of the abated surfaces and sidewalk shall be performed to verify the absence of visiible, debris.

Air monitoring shall' be pdrfned by an independent. NYSDOL licensed third party air monitoring firm with certified workers.

lb order to rn maize di ption w the public and tb the bu llding occupants,, it is rocomnmanded this work be performed during off-hours.

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