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08 April 1999 <br /> AGE-NC Project No. 98-0520 <br /> C. ONSITE CONTROL <br /> William Little has been designated to coordinate access control and security onsite. A safe <br /> perimeter has been established at-20 feet around borings . No unauthorized person should be <br /> within this exclusion area. <br /> D. HAZARD EVALUATION <br /> The following substance(s) or hazards are known or suspected to be on site. <br /> Substances Involved: Concentrations: <br /> TPH-gasoline unknown <br /> BTE&X unknown <br /> MTBE unknown <br /> The primary hazards of each are identified as follows: <br /> 1. Hydrocarbon fuels - Components of fuels are colorless liquids with strong aromatic <br /> petroleum hydrocarbon-like odors. They are flammable and have low solubility in water. <br /> Exposure to these materials in excess of recommended exposure limits can cause mild eye, <br /> nose, and throat irritation and can produce a narcotic effect on the central nervous system. <br /> Symptoms of exposure at these concentrations include headache, nausea, drowsiness, <br /> dizziness,and loss of coordination. Certain components of gasoline(BTE&X etc.)are known <br /> or suspected carcinogens. <br /> The following additional hazards are expected on site:typical work related to facility.Noise, falling <br /> rods, flying hammer, snapped cables,etc. on the drill rig (if applicable). <br /> E. PERSONAL PROTECTIVE EQUIPMENT <br /> Based on evaluation of potential hazards, the following levels of personal protection have been <br /> designated for the applicable work areas or task: <br /> Adranced GcoERrironmenial,Inc. <br />