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• • Project No. 014-95262 <br /> Page No. 4 <br /> • Electrical hazards: possible excavation of buried cables, exposure to overhead <br /> power lines, wet electrical cords, etc. <br /> • Chemical hazards: exposure to chemicals/contaminants listed in Section 4.0 of this <br /> plan and exposure to extraction solvents, etc. <br /> • Fire hazards; possible excavation of buried utilities, flammable petroleum <br /> hydrocarbons, equipment fires, etc.... <br /> • Thermal (heat stress) hazards: exposure to outside temperature extremes, and/or <br /> ^ increased body temperatures while wearing protective clothing/equipment etc.... <br /> • Acoustical hazards: exposure to excessive noise created by drilling operations <br /> and/or related to the site-specific operations, etc.... <br /> • Routine job-related hazards in the subcontractor's laboratory. Neither these <br /> hazards nor any activities performed in the subcontractors laboratory are covered <br /> by this plan. <br /> Job hazard analyses associated with most major work activities are presented in the following <br /> sections. <br /> 2.1 Hollow-Stem Auger Drilling <br /> Hollow-stem auger drilling activities will potentially expose field personnel to the following <br /> hazards: <br /> Chemical hazards: <br /> • Exposure to various chemical substances, including but not limited to liquids and <br /> vapors of petroleum hydrocarbons, volatile organic compounds, PCBs, ammonia <br /> chloride salts, or various minerals such as nitrates. Certain precautions may be <br /> necessary to properly control the potential fire/explosion/health hazards associated <br /> with these chemicals. <br /> Physical hazards: <br /> Potential exposures to physical hazards associated with hollow-stem augering include the following: <br /> • Snapping cables <br /> • Brush, equipment, gas-main, or hydrocarbon fires <br /> ' Being hit by equipment <br /> • Becoming entwined in rotating tools <br /> • Falling objects <br /> • Exposure to excessive noise <br /> • Exposure to outside temperature extremes. <br /> • Exposure to the potential for heat exhaustion due to protective clothing <br /> • Slips, trips, and falls <br /> KRAZAN&ASSOCIATES, INC. <br /> Offices Serving dee Western United States <br /> 93262.aeP <br />