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Contractor: Geological Audit Services <br /> 1803 W. March Lane Stockton CA 95207 <br /> C. ONSITE CONTROL <br /> Bob Marty has been designated to coordinate access control and security onsite. A safe <br /> perimeter has been established at 20 feet around boring, in progress. No unauthorized <br /> 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/kerosene 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 <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: lypical work related to facility. Noise, <br /> falling rods fl ijnng hammer, snapped cables, etc. on the drill rig. <br /> E. PERSONAL PROTECTIVE EQUIPMENT <br /> Based on evaluation of potential hazards, the following levels of personal protection have <br /> been designated for the applicable work areas or task: <br /> Ceobpcal Auda Service+,Inc. 2 <br /> Pmduction Cbemial Mfg.SHSP/694/M-S <br />