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=� _ ORM <br /> June 21, 1991 <br /> ARCO Station No. 548 <br /> ,u. <br /> TABLE 1 <br /> EXPOSURE LIMITSARCOF ServiceNTICIpATEI on CONTAMINANTS <br /> No. 548 <br /> Stati <br /> 1612 Hammer Lane <br /> Stockton. California <br /> (Page 2 of 2) <br /> CL TWA STEL <br /> Contaminant <br /> PEL EL EO <br /> time--weighted <br /> permissible exposure limit: 8 hour, and Health <br /> PEL California Occupational Safety <br /> average, OSHA) <br /> Administration Standard (CAL- <br /> excursion limit: maximum concentration ee may be <br /> EL - to which an employ <br /> airborne contaminant <br /> exposed without regearaveraged to rforoPELrislnot the <br /> 8 hour time-weight <br /> exceeded (CAL-OSHA) time peri.od permitted <br /> ED - excursion duration: maximum li <br /> for an exposure above the exccP.LloSHA)mit but not <br /> exceeding the ceiling limitof <br /> CL - ceiling limit: maximum loyees may concentratboeXposedrborne <br /> contaminant which emp <br /> permitted (CAL-OSHA) same as threshold <br /> time-weighted a�1exag ericanrConference of <br /> TWA - C ACGIH) <br /> limit val�ze (TLV) ] ial ieni.,ts ( <br /> Goverpmentalexposure of <br /> 15 minute time-weighted <br /> STEL short-term <br /> aver-age ACGIH) cubic meter of air <br /> # -• milligrams of substances per <br /> (mg/m ) or per million parts air <br /> * - parts of gas or vap P or confirmed <br /> [card - substance identified as a suspected <br /> carcinogen be absorbed into the bloodstream <br /> [skin] - substance may or eyes <br /> through the skin, mucous membranes <br /> PEL and STEL; <br /> 1 - 7ederal OSHA benzene limits g STEL, is <br /> STEL has a 50 mirute durationlimitPEL; <br /> Federal OSHA gasoline limit given <br /> 2 - the same for FED-OSHA and ACGIH <br /> l <br /> 4 <br />