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C. Air Monitoring, Personnel Monitoring, Environmental Sampling <br />Techniques and Instrumentation <br />The following monitoring will be performed at this site. <br />• A combustible gas indicator (CGI) will be used to <br />monitor the atmosphere at the site for flammable <br />vapors. <br />A Photoionization Detector (PID) or equivalent will be <br />used to determine the appropriate level of protection. <br />• A Photoionization Detector (PID) or equivalent will be <br />used to screen soils for contamination as they are <br />removed from the excavation. <br />Monitoring with the CGI, for flammable vapors, and the PID, to <br />determine levels of protection, will be performed continually and <br />documented in writing. Monitoring with the PID to screen for soil <br />contamination will be performed as needed. When the PID is being <br />used to screen soils, breathing zone measurements will be <br />alternated with soil screening measurements. Breathing zone <br />measurements from the person screening the soils will be used to <br />guide levels of protection for all workers within the exclusion <br />zone. <br />All environmental monitoring and sampling at the sire will be,., <br />performed in accordance with Federal, State, and Local Regulations <br />and accepted standards. Monitoring instruments will be calibrated <br />and maintained in accordance with the manufacturer's instructions. <br />Calibration will be documented in writing. <br />SPILL CONTAINMENT PROGRAM <br />If there is no health threat from containing a spill, the following <br />spill control measures will be implemented immediately: <br />a. Take measures to stop the release. <br />b. Construct a containment barrier using <br />excavated soil to prevent the contaminant from <br />spreading. <br />C. Remove as much of the liquid portion of the <br />substance as possible using a pump truck <br />and/or adsorbent material. <br />d. Place contaminated containment soil into an <br />appropriatd`container for disposal. <br />e. Place all contaminated materials which cannot <br />5 <br />