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Table 3 Task-Specific Air Monitoring/PPE Summary <br /> A downgrade in air monitoring and PPE level must be approved by the HSM. <br /> 0 0 <br /> Site Mobilization Level D NA None Required <br /> Landfill Gas Level D or 4 gas meter Air monitoring required during any digging <br /> Extraction Wells and (02,H2S, or drilling at start up of work at each task <br /> Pipeline Installation LEL, CO) location, then every 30 — 60 minutes based <br /> upon air monitoring results. Monitor 15 <br /> minutes to continuously if action levels <br /> have been reached. <br /> Heavy Equipment Level D 4 gas meter Air monitoring required during any digging <br /> Operation to Support (02,H2S, or drilling at start up of work at each task <br /> Excavation& LEL, CO) location, then every 30 — 60 minutes based <br /> Installation Activities upon air monitoring results. Monitor 15 <br /> minutes to continuously if action levels <br /> have been reached. <br /> Installation of Landfill Level D 4 gas meter Air monitoring required during any digging <br /> Leachate System (02,H2S, or drilling at start up of work at each task <br /> LEL, CO) location, then every 30 — 60 minutes based <br /> upon air monitoring results. Monitor 15 <br /> minutes to continuously if action levels <br /> have been reached. <br /> Installation of Landfill Level D 4 gas meter Air monitoring required during any digging <br /> Flare System (02, H2S, or drilling at start up of work at each task <br /> LEL,CO) location, then every 30 — 60 minutes based <br /> upon air monitoring results. Monitor 15 <br /> minutes to continuously if action levels <br /> have been reached. <br /> Working in Modified Level 4 gas meter Air monitoring required during any digging <br /> excavations/trenches D-3 (02,H2S, or drilling at start up of work at each task <br /> with potential for LEL, CO) location, then every 30 — 60 minutes based <br /> needles or puncture upon air monitoring results. Monitor 15 <br /> hazards minutes to continuously if action levels <br /> have been reached. <br /> General site duties, Level D N/A N/A <br /> system O&M, <br /> operation of <br /> equipment,etc. <br /> Note: "Start up of work at each new task location"means to monitor the air quality at each new operation <br /> on the site. The breathing zone is the area inside a 1-foot radius around the head. <br /> 1-5 <br />