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� d <br />�F <br /> w <br /> rw <br /> 3.4 Plan for Air Monitoring <br /> During soil excavation, soil stockpiling, and well drilling and <br /> construction operations, a Photovac TIP II air analyzer or equivalent will <br /> be available to measure levels of airborne organic vapors. Readings will <br /> be taken above the excavation and the tank to monitor the presence of <br /> vapors. If sustained readings of total organic vapors of 20 parts per <br /> million (ppm) above the background levels are detected in the workers' <br /> breathing zone for five minutes, work will be stopped and respirators will <br /> be donned by all personnel in the active zone. If levels of volatile <br /> organics above background levels exceed the 20 ppm range, the SSO in <br /> consultation with the HSO will make a determination for the need to upgrade <br /> i safety measures. Examples of possible upgrades of safety measures include: <br /> e <br /> Full-shift p <br /> Full- ft ersonnel air monitoring using personal sampling pumps r <br /> _ 1. # <br /> -, � and charcoal sorbent tubes; <br /> 2. Additional personal protective clothing and upgraded respiratory <br /> protection; j <br /> a j <br /> I <br /> 3. Additional on-site training and safety meetings. <br /> 3.5 Personal Protective Equipment <br /> Personal protective equipment will be worn by al] personnel in the active <br /> area. Personal .protective equipment designed to prevent contact with <br /> f; <br /> 01 contaminated materials is described in the next three sections. <br /> x � � <br /> 3:5.1 Steel-Toed Boots <br /> Boots with steel toes will be worn at all times. <br /> rt3 139 � - <br /> I <br /> W <br /> i <br /> A rCanoweEnvironmental <br /> - <br /> ta_ <br /> by F <br />