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" l A S Ems% <br /> � zoos <br /> � ,�M E ,� o� <br /> The following list personal protective clothing and equipment for field personnel wile working <br /> at an upgraded Level C. <br /> * Half or Full-face, air-purifying, cartridge-equipped respirator (OSHA/NIOSH <br /> approved) with organic chemical cartridges <br /> * Nomex coveralls <br /> * Gloves (outer), chemical-resistant <br /> * Gloves (inner), chemical-resistant <br /> * Safety glasses <br /> * Boots chemical-resistant, steel toe and shank <br /> * Hearing protection <br /> * Booties (outer), chemical-resistant, disposable (optional) <br /> * Hard hat <br /> 7.4 MONITORING REQUIREMENTS <br /> Levels of organic vapors in the Breathing Zone of all field personnel will be identified while <br /> they are performing their tasks at the site by utilizing a calibrated, direct reading, <br /> Photoionization Detector (PID) Instrument, such as a Thermo Environmental 580B, or <br /> equivalent. An explosimeter will be used to identify any deficiency in oxygen in Breathing <br /> Zones, and any potential for explosion in work areas. <br /> Readings of these instruments will be utilized to define the level of protection field personnel <br /> will be required to work under. With PID instrument readings in the Breathing Zone of <br /> personnel of up to 50 parts per million (PPM), personnel may work with Level D personal <br /> protective clothing and equipment. If the PID readings in the Breathing Zone of personnel are <br /> consistently between 50 and 250 PPM, site activities will continue but with the protection <br /> upgraded to Level C. The work will be stopped, and personnel will move upwind of the <br /> Exclusion Zone. If PID readings are greater than 250 PPM, the SSHO/HSM will assess the <br /> situation. <br /> 12 <br />