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<br /> <br /> <br /> Scope of Work - Asbestos Abatement Irerralcon <br /> Grand Theatre e 21 Lamar Avenue, Paris, Texas <br /> April 14, 2011 ® Terracon Project No. 9410645 <br /> <br /> 7.0 AIR MONITORING SERVICES <br /> <br /> The responsibility for performing visual inspections and air monitoring services is <br /> delegated to Terracon's on-site State of Texas licensed project manager/air monitoring <br /> technician. <br /> <br /> The CONSULTANT shall verify that the Work performed is in compliance with applicable <br /> regulations and that the building areas beyond the Work Area and the outside <br /> environment remain free of contamination. This section also sets forth airborne fiber <br /> levels both inside and outside the Work Area as permissible exposure limits (PELs), and <br /> describes the action required by the CONTRACTOR if a permissible exposure limit is <br /> <br /> met or exceeded. <br /> <br /> AIR MONITORING: <br /> <br /> The CONSULTANT will be conducting air monitoring throughout the course of the <br /> project. <br /> <br /> Work Area Isolation: The CONSULTANT will monitor airborne fiber counts outside the <br /> Work Area. The purpose of this air monitoring will be to detect faults in the Work Area <br /> isolation including, but not limited to, contamination of the building outside of the Work <br /> Area with airborne asbestos fibers, failure of filtration or rupture in the ventilation system, <br /> or contamination of the exterior of the building with airborne asbestos fibers. <br /> <br /> Should any of the above occur, the CONTRACTOR shall immediately cease asbestos <br /> abatement activities until the fault is corrected. Work shall not recommence until <br /> authorized by the CONSULTANT. <br /> <br /> Work Area Airborne Fiber Count: The CONSULTANT will monitor airborne fiber counts <br /> in the Work Area. The purpose of this air monitoring will be to detect airborne fiber <br /> <br /> counts which may significantly challenge the integrity of Work Area isolation procedures <br /> that protect the balance of the building or outside of the building from contamination by <br /> airborne fibers. <br /> AIRBORNE FIBER COUNTS: <br /> <br /> Inside Work Area: Maintain an average airborne count in the Work Area of less than 0.1 <br /> fibers per cubic centimeter. If the fiber counts rise above this figure for any sample <br /> taken, revise work procedures to lower fiber counts. If the Time Weighted Average <br /> (TWA) fiber count for any Work shift or eight (8) hour period exceeds 0.1 fibers per cubic <br /> centimeter, stop work and leave ventilation system in operation. Do n rec ence <br /> work until authorized by the CONSULTANT. <br /> <br /> <br /> <br /> <br /> <br /> <br /> 138 <br />