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Description of Selected General Terms and Acronyms <br /> Term/Acronym Description <br /> Asbestos Containing Material.Asbestos is a naturally occurring mineral,three varieties of which (chrysotile, amosite, crocidolite)have been <br /> commonly used as fireproofing or binding agents in construction materials. Exposure to asbestos,as well as ACM,has been documented to <br /> cause lung diseases including asbestosis(scarring of the lung),lung cancer and mesothelioma(a cancer of the lung lining). <br /> Regulatory agencies have generally defined ACM as a material containing greater that one(1)percent asbestos, however some states(e.g. <br /> California) define ACM as materials having 0.1%asbestos. In order to define a homogenous material as non-ACM, a minimum number of <br /> samples must be collected from the material dependent upon its type and quantity. Homogenous materials defined as non-ACM must either <br /> have 1) no asbestos identified in all of its samples or 2) an identified asbestos concentration below the appropriate regulatory threshold. <br /> Asbestos concentrations are generally determined using polarized light microscopy or transmission electron microscopy. Point counting is an <br /> ACM analytical method to statistically quantify the percentage of asbestos in a sample.The asbestos component of ACM may either be friable or <br /> non-friable.Friable materials,when dry,can be crumbled,pulverized,or reduced to powder by hand pressure and have a higher potential for a <br /> fiber release than non-fdable ACM. Non-friable ACM are materials that are firmly bound in a matrix by plastic, cement, etc. and, if handled <br /> carefully,will not become friable. <br /> Federal and state regulations require that either all suspect building materials be presumed ACM or that an asbestos survey be performed prior <br /> to renovation, dismantling, demolition, or other activities that may disturb potential ACM. Notifications are required prior to demolition and/or <br /> renovation activities that may impact the condition of ACM in a building.ACM removal may be required if the ACM is likely to be disturbed or <br /> damaged during the demolition or renovation. Abatement of friable or potentially friable ACM must be performed by a licensed abatement <br /> contractor in accordance with state rules and NESHAP. Additionally, OSHA regulations for work classification, worker training and worker <br /> protection will apply. <br /> AHERA Asbestos Hazard Emergency Response Act <br /> Aboveground Storage Tanks.ASTs are generally described as storage tanks less than 10% of which are below ground (i.e., buried). Tanks <br /> AST located in a basement,but not buried,are also considered ASTs.Whether,and the extent to which, an AST is regulated, is determined on a <br /> case-b -case basis and depends upon tank size,its contents and the jurisdiction of its location. <br /> BGS Below Ground Surface <br /> Brownfields State and/or tribal listing of Brownfield properties addressed by Cooperative Agreement Recipients or Targeted Brownfields Assessments. <br /> BTEX Benzene,Toluene,Ethylbenzene,and Xylenes.BTEX are VOC components found in gasoline and commonly used as analytical indicators of a <br /> troleum hydrocarbon release. <br /> Comprehensive Environmental Response, Compensation and Liability Act (a.k.a. Superfund). CERCLA is the federal act that regulates <br /> CERCLA abandoned or uncontrolled hazardous waste sites.Under this Act,joint and several liability may be imposed on potentially responsible parties <br /> for deanu -related costs. <br /> Comprehensive Environmental Response,Compensation and Liability Information System.An EPA compilation of sites having suspected or <br /> CERCLIS actual releases of hazardous substances to the environment.CERCLIS also contains information on site inspections,preliminary assessments <br /> and remediation of hazardous waste sites.These sites are typically reported to EPA by states and municipalities or by third parties pursuant to <br /> CERCLA Section 103. <br /> CESQG Conditionally Exempt Small Quantity Generators <br /> CFR Code of Federal Regulations <br />