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11 • <br />Table B-1 <br />Hazard Exposure Guidelines <br />PG&E Marks Compressor Station <br />Sacramento County, California <br />COMPOUND CAL OSHA PEL 1995-96 ACGIH TLV <br />' Benzene 1 ppm (TWA) 10 ppm (TWA) <br />Toluene 100 ppm (TWA) 100 ppm (TWA) <br />' 150 ppm (STEL) 150 ppm (STEL) <br />Ethylbenzene 100 ppm (TWA) 100 ppm (TWA) <br />125 ppm (STEL) 125 ppm (STEL) <br />' Xylenes 100 ppm (TWA) 100 ppm (TWA) <br />150 ppm (STEL) 150 ppm (STEL) <br />' Gasoline 300 ppm (TWA) 300 ppm (TWA) <br />500 ppm (STEL) 500 ppm (STEL) <br />tDiesel None None <br />' Notes: 1. Table includes possible contaminants which may be encountered based on available information. <br />2. CAL OSHA: California Occupational Safety and Health Administration. <br />ACGIH: American Conference of Governmental Industrial Hygienists. <br />PEL: Permissible Exposure Limit. <br />' TLV: Threshold Limit Values. <br />TWA: Time Weighted Average (8 -hour). <br />STEL: Short Tenn Exposure Limit. <br />DECONTAMINATION <br />' During all field operations, care will be taken to minimize contact with soils containing elevated levels of <br />petroleum hydrocarbons. When leaving the exclusion zone, loose debris will be removed from protective <br />' clothing by brushing or rinsing. Gloves and boots will be washed in a Alconox detergent solution and <br />rinsed with clean potable water. All rinseate will be disposed of in an appropriate manner after laboratory <br />' results are received. All used respirator cartridges, gloves and coveralls will be drummed for subsequent <br />disposal. No one will exit the exclusion zone with contaminated clothing or equipment. <br />1 412_111.98_63 <br />!m <br />