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These policies and their implementation are central to IT' s <br /> accident prevention program. <br /> The provisions of this plan are mandatory for all IT personnel <br /> and subcontractors assigned to the project . All authorized <br /> visitors to any of the work sites will be required to abide by <br /> these procedures . <br /> Chemical Hazards Identified at BP Station 11190 <br /> Tank and piping pressure tests conducted at BP Station 11190 <br /> suggest that gasoline and diesel fuels may have leaked into the <br /> subsurface . The gasoline fuel hydrocarbons and their indicator <br /> constituents can be hazardous . These indicator constituents are <br /> listed below along with a brief health hazard description, the <br /> American Conference of Governmental Industrial Hygienists <br /> Threshold Limit Values (ACGIH TLV' s) and vapor pressures. <br /> i <br /> Benzene <br /> Hazards : Benzene is a skin irritant . Inhalation may result in <br /> headache, dizziness, nausea, and general weakness . Continued <br /> exposures to high concentrations could result in central nervous <br /> system depression and respiratory failure . Prolonged chronic <br /> 1 exposures may result in abnormalities of the blood, forming <br /> tissues of bone marrow as well as leukemia. Benzene is a suspect <br /> human carcinogen. <br /> • TLV: 1 part per million (ppm) <br /> • Vapor Pressure: 100 millimeters (mm) at 26. 1° <br /> Centigrade. <br /> Toluene <br /> Hazards : Toluene is a skin irritant . Inhalation may result in <br /> headaches, dizziness, nausea, incoordination, and general <br /> weakness . Continued exposures to high concentrations may result <br /> in anemia, enlarged liver, or coma. Toluene can contain residual <br /> levels of benzene. <br /> • TLV: 100 ppm <br /> • Vapor Pressure: 36. 7 mm at 30° Centigrade. <br /> A-6 <br /> MA:ENG:9262-APPA/091291 <br />