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Asbestos Abatement Guidelines and Policies <br />Page 01714-1 <br />SECTION 01714 <br /> <br />WORK AREA CLEARANCE <br /> <br /> <br />1.01 GENERAL <br /> <br />A. Notification and scheduling of the final inspection during the project is the responsibility <br />of the contractor. <br /> <br />1.02 FINAL CLEARANCE TESTING <br /> <br />A. After the second cleaning operation and after the area is completely dry, the following <br />procedure test shall be performed: <br /> <br /> 1. A final visual inspection shall be conducted by the industrial hygiene firm. The <br />inspection shall be conducted following the guidelines set forth in the American <br />Society for Testing and Materials, Standard Practices for Visual Inspection of <br />Asbestos Abatement Projects, Designation: E1368.90. If the work area is found <br />visibly clean, air samples will be collected by the industrial hygiene firm. <br /> <br /> 2. During the air testing, the accredited air monitor shall cause disruptive air <br />currents as described in the EPA-AHERA regulations (40 CFR Part 763, Subpart E, <br />Appendix A). <br /> <br /> 3. Transmission Electron Microscopy (TEM) clearance will be run in work areas <br />disturbing greater than 3,000 SF or 1,500 LF of friable material. Five (5) TEM air <br />samples will be required for clearance of each containment following a visual <br />clearance of each work area where containments have been erected. Five (5) <br />samples will be collected in the containment and be submitted to the laboratory <br />for analysis. If the arithmetic mean of the five samples collected from the inside <br />of the containment is less than 70 structures/square millimeter, the area passes <br />clearance. <br /> <br /> 4. The industrial hygiene firm shall immediately report the final air sampling <br />clearance results to the designer. <br /> <br /> 5. The use of the negative pressure system may be discontinued after the <br />industrial hygiene firm instructs the contractor that he has passed the final <br />project decontamination inspection. <br />DocuSign Envelope ID: 09980A3B-0691-41B4-854D-3865F2287392