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Health and Safety Plan 10 <br /> Sears,51 10 Pacific Avenue, Stockton, California October 22, 1999 <br /> 30 AIR MONITORING PLAN <br /> ' <br /> 31 Air Monitoring <br /> Air monitoring must be performed on all sites in accordance with IT Corporation practices Organic <br /> vapor concentrations are monitored in the field with a flame ionization detector (FID) or <br /> ' photoionization detector (PID) with a 10 2 eV lamp All readings are taken in the worker's <br /> breathing zone to determine whether an action level has been met and/or exceeded Readings <br /> must be sustained for 5 minutes for upgrade in PPE Air monitoring results must be documented <br /> on the Vapor Monitoring Form (Appendix B) <br /> Air monitoring action levels (Table 3) have been developed by IT Corporation to indicate the <br /> ' chemical concentrations in the breathing zone that require an upgrade in level of PPE All workers <br /> on-site have been properly fitted with PPE (i e , respirators) and have been trained in their use (i e , <br /> ' donning and doffing) Air monitoring measurements will be taken in the breathing zone of the <br /> worker most like to have the highest exposure Transient peaks will not automatically trigger <br /> action Action will be taken when levels are consistently exceeded in a 5-minute period The <br /> M action levels apply to all tasks performed on this site Guidelines for frequency of air monitoring <br /> are presented in Table 3 Job tasks that require air monitoring are listed in Table 4 <br /> Engineering controls such as the venture air mover (supplied by compressed air) to exhaust or dilute <br /> solvent vapors emanating from monitoring wells or when conducting intrusive activities can be <br /> ' utilized as a means to downgrade PPE requirements (Level C to D) <br /> e <br /> • <br />