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1 0 <br /> Erp1,T, 11141 8 t wiz, SAFE 1 791'Y 2.0 0 55 <br /> exposure can result in liver and kidney damage. Workers must be instructed to prevent skin <br /> and eye <br /> contact, and avoid breathing vapors. The OSHA PEL for toluene is 200 PPM, averaged over an <br /> eight- (8) hour workday. The ceiling limit for toluene exposure is 300 PPM, and the ten (10) <br /> minute peak exposure is 500 PPM. Toluene, in its pure form, is a colorless flammable liquid <br /> with a sweet pungent, benzene-like odor. <br /> Personal protective equipment (PPE) for prevention of toluene exposure to workers at this job <br /> site, if detected, includes they use a half or full-face air purifying respirator equipped with <br /> organic vapor cartridges. Skin exposure can be prevented by the use of rubber, viton, or <br /> nitrile gloves, boots, and coveralls. <br /> 6.2 PHYSICAL HAZARDS <br /> Hazards associated with UST excavation activities most commonly are generated with the <br /> operation of heavy equipment, which produces elevated levels of noise, and may induce dust <br /> into the air. To reduce the risk of noise during the operations, field personnel will wear <br /> earplugs when necessary. Should dust pose a hazard, toxic dust masks are to be worn. <br /> Additionally, the following procedures will be followed during excavation: the UST area is to be <br /> inspected for hazards before excavating begins; personnel, other than the equipment operator <br /> and his helpers, are to stay clear of the equipment; the operator will be in/on the equipment <br /> at all times when the equipment is running; all equipment will be safely stored/racked; drilling <br /> equipment, at all times, will be in good and operable condition-malfunctioning equipment will <br /> not be used, or the operation will be stopped for repair of equipment. <br /> Other physical hazards that could be encountered with these works are falls, splashes of fluids, <br /> utility lines, and heat exposure. Personnel must be aware of on-site sources for falls produced <br /> by equipment and terrain, and perform their tasks with care for these conditions. Personnel <br /> can protect themselves from splashes and spills of fluids by wearing chemically resistant <br /> gloves, coveralls, and goggles. <br /> Both above and below ground utility lines pose safety hazards to personnel and equipment. <br /> All equipment utilizing masts or booms must maintain at least ten (10) feet of clearance from <br /> overhead lines. The presence of any buried utility lines at locales, both on- and off-site for <br /> drilling, must be identified prior to commencing work. Off-site buried lines can be found via <br /> Underground Service Alert at (800)422-4133. The client must provide all information, and <br /> assume the responsibility, for clearing on-site work locales of buried lines. <br /> Heat stress is generally not a predominant hazard during tasks of the site assessment. Means <br /> to reduce discomfort of heat stress are; increase fluid intake; take formal and prolonged rest <br /> periods; during hot weather, perform tasks in the cool of mornings and evenings; and provide <br /> shade and increase ventilation for the work and break areas. <br /> Do not hoist two or more separately rigged loads, (Tandem or Christmas tree lifting), <br /> regardless of weight. Never allow any worker to stand under a moving load. There are NO <br /> EXCEPTIONS. <br /> 9 <br />