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<br /> z Site Safety Plan May 1, 1991
<br /> ARCO Station No. 2130, Stockton, California AGS 30003-IS
<br /> TABLE 1
<br /> EXPOSURE LIMITS OF ANTICIPATED CHEMICAL =NTAMINANTS
<br /> ARCO Service Station No. 2168
<br /> 441 West Charter Way
<br /> Stockton, California
<br /> (page 2 of 2)
<br /> Contaminant PEL EL ED CL TWA STEL
<br /> PEL - permissible exposure limit: 8 hour, time-weighted
<br /> ;. average, California Occupational Safety and Health
<br /> Administration Standard (CAL-OSHA)
<br /> EL - excursion limit: maximum concentration of an
<br /> airborne contaminant to which an employee may be
<br /> exposed without regard to duration provided the
<br /> 8 hour time-weighted average for PEL is not
<br /> exceeded (CAL-OSHA)
<br /> Ed - excursion duration: maximum time period permitted
<br /> for an exposure above the excursion limit but not
<br /> exceeding the ceiling limit (CAL-OSHA)
<br /> CL - ceiling limit: maximum concentration of airborne
<br /> contaminant which employees may be exposed
<br /> permitted. (CAL-OSHA)
<br /> TWA - time-weigbted average: S hour, [ (same as threshold
<br /> limit value (TLV) ), American Conference of
<br /> Governmental Industrial Hygienists (ACGIH)
<br /> STEL short--term exposure limit: 15 minute time-weighted
<br /> average (ACGIH)
<br /> # - millivrans of substance per cubic meter of air
<br /> (mg/m )
<br /> * parts of gas or vapor per million parts air
<br /> [card - substance identified as a suspected or confirmed
<br /> carcinogen
<br /> [skin) - substance may be absorbed into the bloodstream
<br /> through the skin, mucous membranes, or eyes
<br /> 1 - Federal OSHA benzene limits given for PEL and STEL;
<br /> STEL has a 50 minute duration limit
<br /> 2 - Federal OSHA gasoline limit given for PEL; STEL is
<br /> the same for FED-OSHA and ACGIH
<br /> 3 - Federal OSHA propane limit given for PEL
<br /> 4
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