Forwarding WTC air monitoring scope for final review, Aug 2002

NYC 9/11 Public Portal Document

Environmental Protection Agency §763.83 contain fibers. Damage may be further taiy and Secondary Education Act of illustrated by occasional punctures, 1965 (20 U.S.C. 3381). gouges or other signs of physical injury (2) The owner of any nonpubllc, non­ to ACM: occasional water damage on profit elementary, or secondary school the protective coverings/jackets: or ex­ building. posed ACM ends or Joints, Asbestos de­ (3) The governing authority of any bris originating from the ACBM In school operated under the defense de­ question may also Indicate damage. pendent’s education system provided Encapsulation means the treatment of for under the Defense Dependents’ Edu­ ACBM with a material that surrounds cation Act of 1978 (20 U.S.C. 921, et or embeds asbestos fibers in tin adhe­ seq.). sive matrix to prevent the release of fi­ Miscellaneous ACM means miscella­ bers, as the encapsulant creates a neous material that is ACM in a school membrane over the surface (bridging building. encapsulant) or penetrates the mate­ Miscellaneous material means interior rial and binds its components together building material on structural compo­ (penetrating encapsulant). nents. structural members or fixtures, Enclosure means an airtight, imper­ such as floor and ceiling tiles, and does meable, permanent barrier around not include surfacing material or ther­ ACBM to prevent the release of asbes­ mal system Insulation. tos fibers into the air. Nonfiiable means material in a school building which when dry may not be Fiber release episode means tiny un­ crumbled, pulverized, or reduced to controlled or unintentional disturb­ powder by hand pressure. ance of ACBM resulting in visible emis­ Operations and maintenance program sion. means a program of work practices to Friable when referring to material in maintain friable ACBM In good condi­ a school building means that the mate­ tion, ensure deem up of asbestos fibers rial, when dry, may be crumbled, pul­ previously released, and prevent fur­ verized, or reduced to powder by hand ther release by minimizing and con­ pressure, and includes previously non- trolling friable ACBM disturbance or friable material after such previously damage. nonfrlable material becomes damaged Potential damage means cir­ to the extent that when diy it may be cumstances in which; crumbled, pulverized, or reduced to (1) Friable ACBM is in an area regu­ powder by hand pressure. larly used by building occupants, in­ Functional space means a room, group cluding maintenance personnel, in the of rooms, or homogeneous area (includ­ course of their normal activities. ing crawl spaces or the space between a (2) There are indications that there is dropped ceiling and the floor or roof a reasonable likelihood that the mate­ deck above), such as classroom(s), a rial or its covering will become dam­ cafeteria, gymnasium, hallway(s), des­ aged, deteriorated, or delaminated due ignated by a person accredited to pre­ to factors such as changes in building pare management plans, design abate­ use, changes in operations and mainte­ ment projects, or conduct response ac­ nance practices, changes in occupancy, tions. or recurrent damage. High-efficiency particulate air (HEPA) Potential significant damage means refers to a filtering system capable of circumstances in which: trapping and retaining at least 99.97 (1) Friable ACBM is in an area regu­ percent of all monodispersed particles larly used by building occupants, in­ 0.3 pm in diameter or larger. cluding maintenance personnel, in the Homogeneous area means tin area of course of their normal activities. surfacing material, thermal system in­ (2) There are Indications that there is sulation material, or miscellaneous a reasonable likelihood that the mate­ material that is uniform In color and rial or its covering will become signifi­ texture. cantly damaged, deteriorated, or Local education agency means: delaminated due to factors such as (1) Any local educational agency as changes in building use, changes in op­ defined in section 198 of the Elemen- erations and maintenance practices.

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