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1.0 PURPOSE OF SURVEY <br /> A pre-demolition hazardous material inspection is intended to investigate a structure for potential <br /> ACM, sample and provide accurate results to the customer in accordance with 40 CFR 763.86,the <br /> EPA regulations for Asbestos Hazard Emergency Response Act (AHERA). <br /> Sample test results will be displayed in the survey. Depending on the material sampled,there may be <br /> multiple layers within each sample. These layers you will find broken out within each sample on the <br /> results report. Each layer of the sample is prepared onto individual slides to be analyzed to provide <br /> the most accurate result. <br /> 1.1 DEFINITION OF ASBESTOS <br /> Class l: The most potentially hazardous class of asbestos jobs. This work involves the <br /> removal of asbestos-containing thermal system insulation and sprayed-on or troweled-on <br /> surfacing materials. Employers must presume that thermal system insulation and surfacing <br /> material found in pre-1981 construction is ACM. That presumption, however, is rebuttable. <br /> If you believe that the surfacing material or thermal system insulation is not ACM, the OSHA <br /> standard specifies the means that you must use to rebut that presumption. Thermal system <br /> insulation includes ACM applied to pipes, boilers, tanks, ducts, or other structural <br /> components to prevent heat loss or gain. Surfacing materials include decorative plaster on <br /> ceilings and walls; acoustical materials on decking, walls, and ceilings; and fireproofing on <br /> structural members. <br /> Class Il: This work includes the removal of other types of ACM that are not thermal system <br /> insulation such as resilient flooring and roofing materials. Examples of Class 11 work include <br /> removal of asbestos-containing floor or ceiling tiles, siding, roofing, or transite panels. <br /> Class Ill: This asbestos work includes repair and maintenance operations where ACM or presumed <br /> presumed ACM(PACM) are disturbed. <br /> Class IV: This work includes custodial activities where employees clean up asbestos-containing waste <br /> containing waste and debris produced by construction, maintenance, or repair activities. <br /> This work involves cleaning dust-contaminated surfaces, vacuuming contaminated carpets, <br /> mopping floors, and cleaning up ACM or PACM from thermal system insulation or surfacing <br /> material. (Asbestos Standard for the Construction Industry, OSHA 3096 2002(Revised)) <br /> **Highlighted asbestos class work are what applies to the removal of the materials found to <br /> contain ACM in this survey. If no class is highlighted, no asbestos was detected in this survey. <br /> Friability: Friable ACM is any material containing more than one percent asbestos (as determined by <br /> Polarized Light Microscopy)that, when dry, may be crumbled, pulverized, or reduced to powder by <br /> hand pressure. Non-friable ACM is any material containing more than one percent asbestos (as <br /> determined by Polarized Light Microscopy)that, when dry, cannot be crumbled, pulverized, or <br /> reduced to powder by hand pressure. Under the Asbestos NESHAP, non-friable ACM is divided into <br /> two categories. Category I non-friable ACM are asbestos-containing resilient floor coverings <br /> (commonly known as vinyl asbestos tile (VAT)), asphalt roofing products, packaging and gaskets. <br /> These materials rarely become friable. All other non-friable ACM are considered category II non- <br /> friable ACM. <br /> Page 3 of 23 <br />