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The hazard analysis identifies potential hazards that pertain to specific on site activities. These <br />activities include: <br />Tank Removal / Excavation <br />0 eW&Fe11.1sW d5sliI "M74IMPA KZ-4—RiFf MINWIF."M "I er-3111 - 1W <br />IN <br />stress ( <br />••;- for cold stress • to • changes). Each •• hazard relative to <br />••r for •• is described below. <br />Chemical Contamination <br />The chemical contaminants of concern for this project are gasoline constituents [benzene, ethyl <br />•" toluene, and xylene (BETX)I, and chemical characteristics and •• level <br />information for these compounds are presented in Table C- 1. The hazards associated with these <br />chemicals are potential for fire and explosion, and potential worker exposure due to direct cont <br />and/or inhalation of vapors of gasoline constituents. These potential hazards will be controlled <br />through monitoring and the use • protective equipment as described later in this SSHP. I <br />,m <br />• vapors (50 to 100 octane) are x• to highly toxic via inhalation, which can caus <br />central nervous system depression, pneurnonitis, fatal pulmonary edema, and some addiction if <br />explosion hazards when present in sufficient concentrations and with a source of ignition. The <br />flanunable range for gasoline vapors is 1.3 to 6.0 percent by volume in air. During start-up of thl <br />system gasoline will be present in the tanks, piping, and dispensers. <br />Hazard Control <br />1. Heavy equipment Eye contact with operator prior to approaching equipmel <br />2. Open excavations Open excavations will be marked with tape during work <br />• and blocked with fencing • equipment during the off <br />•, <br />