Laserfiche WebLink
<br />Asbestos Cotttaining <br />Materials Survey <br />4629 North Ovedand T2il <br />La Porte, Colorado <br />3. Asbestos Regulatory Criteria <br />Applicable asbestos regulations define ACM as material containing Beater than 1.0 <br />percent asbestos by weight and also distinguish between friable and non-friable forms <br />of ACM. Friable ACMs can be crumbled or reduced to powder by hand pressure when <br />dry. Non-friable materials cannot be crumbled, pulverized, or reduced to powder by <br />hand pressure. <br />EP\A further classifies non-friable ACM as Category I and II. Category Inon-friable <br />ACMs include roofing tars, felts, and asphalt shingles, and vinyl-asbestos floor tiles <br />with mastic. Category IInon-friable ACMs aze defined as all other non-friable ACM, <br />such as pressed gaskets, window glazing putty, transite, etc. During abatement and <br />demolition projects, applicable regulations identify removal requirements based on the <br />friability classification of an ACM. <br />Removal of ACM is not required by regulation unless the potential for an airbome <br />release of asbestos fibers in excess of allowable levels exists. Typically, the potential <br />for an airborne release of asbestos fibers exists in three circumstances: <br />• The ACM will be impacted during maintenance, renovation, or demolition. <br />• The material is significantly deteriorated to the extent that asbestos debris is <br />present. <br />• The ACM will be subject to future deterioration by vibration, airflow, or <br />weathering. <br />4. Asbestos Inspection Endings <br />A total of 217 bulk samples were collected from the Plant structures identified on <br />Figure 1. Samples were collected from a total of 147 different types of suspected <br />ACMs. Of the 147 suspect ACMs that were sampled or assumed to contain asbestos, a <br />site-wide total of 46 materials were confirmed to be ACM by laboratory analysis and <br />23 suspect ACMs were assumed to contain asbestos due to recognizable qualities <br />(transite panels, 9-inch floor tiles, etc.), or because they were inaccessible without <br />destructive access (boiler linings, firedoor insulation, etc.). Locations such as wall and <br />ceiling interiors were not accessed. Therefore, ACMs that are reasonably suspected are <br />assumed to be present in these inaccessible azeas, such as pipe insulation in wall <br />interiors or underground steam lines. <br />twanoc.Mmi aw.ao~,~,pe wv.p. ~.ov~a.w~+.,e.mwwv.~na.w~~,nmzmc <br />