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Friable Asbestos Materials from Facilities
Containing Less than or Equal to One Percent or Trace Amounts of Asbestos
Spokane Regional Clean Air Agency (SRCAA) evaluated the provision for point counting using polarized light microscopy (PLM) found within the definition of “Friable Asbestos Material” in the federal asbestos NESHAP (40 CFR Part 61, Subpart M, Section 61.141). As of March 4, 2010, SRCAA will no longer require material to be point counted using PLM to verify it contains less than or equal to one percent asbestos when the material has been found to contain less than or equal to one percent asbestos using standard PLM. However, it should be noted that these provisions are required under the federal asbestos NESHAP and may be enforced by the U.S. EPA.
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