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August-September 2018 <br /> AGE-NC Project No. 18-4471 <br /> Page 3 of 7 <br /> Local Agency: San Joaquin County Environmental Health Department <br /> 1868 East Hazelton Avenue, Stockton, CA 95205 <br /> Contractor: Advanced GeoEnvironmental, Inc. <br /> 837 Shaw Road, Stockton, California 95215 <br /> 3.0. ON-SITE CONTROL <br /> Timothy J. Cuellar has been designated to coordinate access control and security <br /> onsite. A safe perimeter has been established at 10 feet around soil boring locations. <br /> No unauthorized person should be within this exclusion area. <br /> 4.0. HAZARD EVALUATION <br /> The following substance(s) or hazards are known or suspected to be on site. <br /> SUBSTANCES INVOLVED: CONCENTRATIONS: <br /> Gasoline N/A <br /> Diesel N/A <br /> Benzene N/A <br /> Toluene N/A <br /> Ethylbenzene N/A <br /> Xylenes N/A <br /> Methyl tertiary Butyl Ether N/A <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 <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 /> Advanced GeoEnvironmental,Inc. <br />