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05August 1999 <br /> AGE-NC Project No. 98-0497 <br /> Page 2 of 7 <br /> 3.0. . ON-SITE CONTROL <br /> The Site Safety Officer will coordinate site access con rol and security. A exclusion zone will be <br /> established approximately 10 feet around boring location work areas. No unauthorized person shall <br /> be allowed within'this exclusion area. <br /> 4.0. HAZARD EVALUATION <br /> The following substance(s) or hazards are known or su pected to be on site. <br /> SUB -C. CONCENTRATIONS .777 <br /> Diesel Up tc 5,100 mg/kg <br /> Gasoline Unknown - none detected <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 concentratiol s 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 additional potential hazards include: Sli -tri -fa 1 hazards. noise. heavy equipment i.e. <br /> Geo robe rig), vibration hazards traffic hazards_ etc. <br /> 5.0. PERSONAL PROTECTIVE EQUIPMENT <br /> Based on evaluation of potential hazards, the following levels of personal protection have been <br /> designated for the applicable «-ork areas or task: <br /> Advanced GcoEnvironmcn d,Inc. <br />