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• Loud noises from the near by passing trains <br /> • Entanglement or injury from rotating or energized parts of the Geo-probe <br /> equipment <br /> • Exposure to noise generated by motors and pumps; <br /> • Insufficient or faulty protective equipment; and <br /> • Insufficient or faulty operations, equipment, or tools <br /> • Other site-specific physical hazards may include any of the following: <br /> • Damage to eyes from sun exposure (ultraviolet [UV] radiation) <br /> 13.1.2 Chemical Hazards <br /> Chemicals that have been detected in soil and groundwater are, total petroleum <br /> hydrocarbons (TPH), benzene, toluene, ethylbenzene, and xylene (BTEX), MTBE and a <br /> variety of cleaning solvents and their break down product. For ease of reference, the <br /> potential physical and chemical hazards expected and protective measures used to <br /> promote worker safety are provided together in Table 5-1. A list of historical chemicals <br /> or constituents occurring at the site along with their toxicological properties is presented <br /> in Table 5-2. More details regarding specific chemicals expected to be present are <br /> provided in the following sections. <br /> Table 4- Summarizes the characteristics for the six organic BTEX compounds <br /> Benzene Toluene m-Xylene o-Xylene P- Ethyl <br /> Xylene benzene <br /> CH <br /> I �+ <br /> Chemical structure C.,; <br /> CHI i <br /> rM: <br /> Chemical formula C6146 C7148 C81410 CgH,o CBH,o CBHio <br /> Molecular weight 78 92 106 106 106 106 <br /> [g/mole] <br /> Water solubility 1700 515 - 175 198 152 <br /> Page 21 of 27 <br />