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SITE SAFETY PLAN May 31, 1989 <br /> Waterfront Redevelopment, Stockton, California AGS 39048-1 <br /> HAZARD ASSESSMENT <br /> The possible major contaminants expected to be encountered on the <br /> project are diesel fuel and gasoline and its hydrocarbon <br /> constituents. The anticipated contaminants and their exposure <br /> standards are listed in Table 1. It is not anticipated that the <br /> potential levels of exposure will reach the permissible exposure <br /> limits (PELs) or threshold limit values (TLVs) . Inhalation and <br /> dermal contact will be the potential exposure pathways of <br /> concern. Protective clothing will be mandatory for all field <br /> personnel as specified in this Plan. In addition, respiratory <br /> protective devices will be required to be worn by each person or <br /> to be within easy reach should irritating odors or irritation of <br /> the respiratory tract become detectable. <br /> TABLE 1 <br /> ANTICIPATED CHEMICAL CONTAMINANTS <br /> Chemical PEL TWA STEL <br /> Gasoline (mixture) N/A 300 ppm 500 ppm <br /> Benzene 1 ppm 10 ppm N/A <br /> Toluene 200 ppm 100 ppm 150 ppm <br /> Ethylbenzene 100 ppm 100 ppm 125 ppm <br /> Total Xylene Isomers 100 ppm 100 ppm 150 ppm <br /> PEL - permissible exposure limit <br /> Occupational Safety and Health Administration <br /> (OSHA) Standard <br /> TWA - 8-hour, time-weighted average (same as TLV) <br /> American Conference of Industrial <br /> Hygienists (ACGIH) Standard <br /> STEL - short-term exposure limit (usually 15 minutes <br /> as established by ACGIH) <br /> N/A - not available <br /> ppm - parts per million <br /> 3 <br />