Residential Air Sampling Contract Intro, WTC Dust, July 2002

NYC 9/11 Public Portal Document

eommon areas including utility rooms, laundry rooms, compactor rooms require cleaning. If elevator shafts are detennined to contain significant WTC dust and or debris, cleanup will proceed under the Scope B site specific work plan. Work will begin fi-om the entrance and continue through all common spaces in an orderly fashion. A detailed description of the i^inlmum cleaning requirements for common space is as follows; ■ a. Vacuuming^ WIi begin at the celling and continue down the walls to the floor. b. Walls will wet wiped, after consultation with and if approved by owner. ' c. Impermeable floors will be damp mopped. d. Carpets will cleaned with a hot water extraction cleaner. The cleaner shall be equipped with a motorized agitator brush and have a static w ater lift of 95 to IM inches. 6. Cleaning of HVAC Systems If the Project Monitor in consultation with EPA determines that an HVAC system requires cleaning, the cleaning contractor shall clean the HVAC system utilizing specialized labor trained and experienced in duct cleaning. The HVAC cleaning will be conducted In accordance with National Air Duct Cleaners Association (NADCA) General Specification for the Cleaning of Commercial Heating, Ventilating and Air Conditioning Systems and the NADCA Assessment, Cleaning and Restoration Standard (ACR 2002). In the event that the HVAC system for an entire building requires cleaning a separate, site specjftc contract will be awarded for this work. Verification of H^AC system cleanliness vW be determined by the Monitoring Contractor. If visible contaminants are evident through visual bispectfOB those ^j^rtions of the system where contaminants are visible shall be recleaned and^ subjected to refo^ction foMteanlin^.

7. Cleaning of Residential Spaces All horizontal hard surfaces shall be HEPA vacuumed and wet wiped. Vertical and soft surfaces shall be HEPA vacuumed two times. Surfaces include but are not limited to walls, floors, ceilings, ledges, trims, furnishings, appliances, equipment, etc. Encapsulating agents shall not be applied. Dry sweeping prohibited. Carpets will be wet vacuumed. Cleaning of clothing and accessories (handbags, shoes etc.)shall be the responsibility of the occupant. A detailed description of the minimum cleaning requirements is as follows: a. -''"'erraces, balconies, exterior window sills, window wells and window guards that are accessible from the interior of the dwelling, will be cleaned. Interior windows, screens, window sills and window guards will be cleaned Vacuuming will begin at the ceiling and continue down the walls to the floor. Walls will be wet wiped, after consultation with and If approved by resident. ^ Curtain^’fabric window treatments, upholstery, and other materials that cannot be g;*' ■ by wet wiping shall be HEPA vacuumed ,two times. Fabric covered furniture T .AC v'j be vacuumed using a stiff brush attachment. ' Carpets will cleaned with a hot water extraction cleaner. The cleaner shall be equipped a motorized a^tator brush and have a static water Bft of 95 to 110 inches. g. Wooden floors will be damp mopped or HEPA vacuumed (If unfinished) in consultation with resident h. Plants shall be cleaned by rinsing leaves with water.

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