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SITE HEALTH & SAFETY PLAN <br /> 5.0 EXPOSURE MONITORING PLAN <br /> A. General <br /> An air quality monitoring program shall be implemented to provide <br /> baseline and on-going air quality data for site operations. The <br /> program shall include: <br /> 1. A preliminary survey of existing air quality conditions, prior <br /> to any surface disturbances and, if possible, under anticipated <br /> "worst case" weather conditions, to be . used to establish <br /> baseline levels for input into . the respiratory protection <br /> selection process; <br /> 2. An on-going evaluation of on-site atmospheric contaminant <br /> concentrations during site activities that invol"ve significant <br /> surface disturbances; <br /> 3. Perimeter monitoring of downwind air quality conditions during <br /> significant surface disturbances. <br /> Western Geologic Resources personnel will have a direct reading, <br /> photoionization detector (PID) on site to assist with _ these air <br /> monitoring functions. <br /> 12 <br />