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C. ONSITE CONTROL <br /> Robert Mart Kevin McKibben has been designated to <br /> coordinate access control and security onsite. A safe perimeter has <br /> been established at 20 feet around excavation in progress <br /> No unauthorized person should be within this exclusion area. <br /> D. HAZARD EVALUATION <br /> The following substance(s) or hazards are own or suspected to be on <br /> site. <br /> Substances involved Concentrations <br /> Gasoline to 6 , 100 _ppm <br /> in soil <br /> The primary hazards of each are identified as follows: <br />. 1 . Hydrocarbon fuels - Components of fuels are colorless liquids <br /> with strong aromatic petroleum hydrocarbon-like odors. They are <br /> flammable and have low solubility in water . Exposure to these <br /> materials in excess of recommended exposure limps can cause mild <br /> eye, nose, and throat irritation and can produce a narcotic effect <br /> ori the central nervous system. Symptoms of exposure at these <br /> concentrations include headache, nausea, drowsiness, dizziness, and <br /> loss of coordination. Certain components of gasoline (BTE&X etc. ) <br /> are known or suspected carcinogens. <br /> The following additional hazards are expected on site: typical work <br /> related to facility. Noise heavy equipment o eration etc. <br /> E. PERSONAL PROTECTIVE EQUIPMENT <br /> Based on evaluation of potential hazards, the following levels of <br /> personal protection have been designated for the applicable work <br /> areas or task: <br /> Location Job Function Levels of Protection <br />• Exclusion zone Excavation A B C D Other <br /> Reduction zone Preserve samples_& A B C D Other <br />