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Local Agency: San Joa uin Coun PHS EHD <br /> Contractor: Advanced GeoEnvironmental Inc. <br /> 1803 W. March Lane Stockton CA 95207 <br /> C. ONSITE CONTROL <br /> Kevin McKibben has been designated to coordinate access control and security <br /> onsite. A safe perimeter has been established at 20 feet around excavation . No <br /> unauthorized person should be 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 /> Gasoline unknown <br /> Diesel unknown <br /> The primacy 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 <br /> water. Exposure to these materials in excess of recommended exposure limits can <br /> cause mild eye, nose, and throat irritation and can produce a narcotic effect on the <br /> central nervous system. Symptoms of exposure at these concentrations include <br /> headache, nausea, drowsiness, dizziness, and loss of coordination. Certain <br /> components of gasoline (BTE&X etc.) are known or suspected carcinogens. <br /> The following additional hazards are expected on site:_jnical work related to facility. Noises <br /> failing rods flying hammer, snapped cables etc. on the drill ri . <br /> Ad-1W OeaPwviro.x.n4 I.c. 2 <br /> SHMAo"d..IWI 6.MWW-95 <br />