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2.0 HAZARD RISK ANALYSIS <br /> The field activities during the project may present a variety of chemical and physical hazards. <br /> Actual personal exposures to these hazards are dependent upon the specific work task, weather <br /> conditions, level of protection utilized, and personnel work habits. Control of these hazards will <br /> be accomplished through site reconnaissance and hazard identification, training of site personnel, <br /> personal protection equipment, and supervision of site activities. <br /> 2.1 Chemical Hazards <br /> Personnel involved in field activities may be exposed to petroleum hydrocarbon impacted soil <br /> from a hydraulic oil leak. If additional hazards are later identified on the site, the additional <br /> health hazard summary information shall be included with this plan as an addendum. <br /> Petroleum hydrocarbons have been detected at the site in the diesel and hydraulic oil range (C12 <br /> to C32). This class of compounds causes irritation of the upper respiratory tract and can cause <br /> nervous system effects ranging from dizziness and headache to coma and respiratory arrest if <br /> inhaled in large quantities. Ingestion causes throat, lung, and stomach irritation. Skin exposure <br /> causes a burning sensation. <br /> Compound PEL STEL <br /> Total petroleum hydrocarbon none none <br /> Respirable Dust 5 mg/m3 none <br /> PEL=permissible exposure limit <br /> STEL=short-term exposure limit <br /> Rough&Ready Island 3 Tetra Tech,Inc. <br /> Revised Draft HSP November 18, 1998 <br />