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4 <br /> ._._. A7 <br /> March 19, 1991 <br /> Unocal Station No, 6981. Stockton, California <br /> addition, fit-testing of respiratory protective devices will be cuaducted as part of the safety <br /> orientation meeting when the ttse of a respirator may be required. <br /> HAZARD ASSrSS11ENT <br /> The major contaminants expected to be encountered on the project are gasoline and its <br /> hydrocarbon constituents. The anticipated contaen;nants and their exposure standards are <br /> listed in Table I. It is not anticipated that tite potential levels of exposure will reach the <br /> permissible exposure limits (PFI..) or threshold limit values (TLV). Inhalation and dermal <br /> contact are the potential exposure pati 1N.S. protective clothing will be mandatory for field <br /> personnel specified in this Plan. In addition. respiratory protective devices are required to <br /> be worn by each person onsite or to be within easy reach should irritating odors be detected <br /> or irritation of the respiratory tract occur. <br /> TABLE 1 <br /> EXPOSURE LIMITS OF ANTICIPATED CHEMICAL CONTAMINANTS <br /> Unocal Service station No. 6981 <br /> 4707 pacific Street <br /> -• Stockton, California <br /> (pagh 1 of 2) <br /> Contaminant PEL EL ED CL TWA STEL <br /> l0* <br /> Benzenel fskin] 1* ---- ------- <br /> --- 5* <br /> & [care] <br /> Ethylbenzene 100* --- ------- <br /> -- 100* 125* <br /> Gasoline2 <br /> 300* --- ------- --- 300* 500* <br /> r• Toluene [skin] 100* 200* 10 min per 500* 100* 150* <br /> ;yiene (o,m, <br /> 100* 200* 30 min per 300* 100* 150* <br /> �+ & p isomers) 8 hrs <br /> [skin] <br /> nee notes on page 2 of 2. <br /> -- <br />