Laserfiche WebLink
lie <br />AROMATIC PETROLEUM DISTILLATES: <br />COMPOUNDS <br />TLV <br />Benzene <br />10 <br />ppm <br />Toluene <br />100 <br />ppm <br />Xylene <br />100 <br />ppm <br />Ethyl Benzene <br />100 <br />ppm <br />These chemicals are found in varying concentration of <br />gasoline. They are colorless liquids with strong aromatic <br />petroleum hydrocarbon -like odors. They are all flammable <br />and moderately volatile. Their vapors are heavier than air <br />and have low solubility in water. <br />The anticipated level of these chemicals detected at the <br />Heintz Facility are considered low enough not to pose a <br />potential threat. <br />E.) Action Levels: <br />Chemical: If any of the symptoms listed above are <br />encountered, evacuate the area and notify the Site <br />Safety Officer. He/She will determine the proper <br />action to be taken. <br />Explosion: If the LEL reading from the Gastech is over <br />20% for petroleum hydrocarbons or 10% for oxygen, the <br />tank will not be removed from the excavation. <br />F.) Air/Environmental Monitoring: <br />Because the tank has no history of leakage and no soil <br />contamination is expected, the only air monitoring that <br />will be performed will be performed with the LEL meter. <br />The tank bungs will be kept closed except for the vent <br />lines which will remain open during the vapor freeing <br />process. All tank vapors will be vented to a minimum <br />of 12 feet above grade and 3 feet above the roof of the <br />existing buildings. <br />G.) Confined Space Entry: <br />This plan does not cover entry into any confined <br />spaces. <br />