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18 March 1998 <br /> AGE-NC Project No. 98-0433 <br /> Page 2 of 7 <br /> 3.0. ON-SITE CONTROL <br /> William Little has been designated to coordinate access control and security onsite. A safe perimeter <br /> has been established at 20 feet around boringlexcavation.No unauthorized person should be within <br /> this exclusion area. <br /> 4.0. HAZARD EVALUATION <br /> The following substance(s) or hazards are known or suspected to be on site. <br /> SUBBSTANCES INVOLVED: CONCENTRATIONS: <br /> Gasoline/Diesel unknown <br /> Waste oil petroleum-based products (?) unknown <br /> Other organic-based products (?) I unknown <br /> • <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(BT.E&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. <br /> -flying hammer, snapped cables etc. on the backhoe/excavator(if applicable). <br /> i <br /> i <br /> Advanced CeoEnvironmenial,Inc. <br />