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Toluene <br />' Inhalation exposure to toluene vapor can produce effects such as central nervous system <br /> depression. Depending on exposure factors, signs and symptoms can include headache, <br /> dizziness, fatigue,muscular weakness,incoordination,drowsiness,collapse and possible coma. <br /> Toluene can be a skin and mucous membrane irritant and studies have shown that high levels <br /> of toluene exposure can cause liver and kidney damage. <br /> Ethylbenzene <br /> ' Exposure to ethylbenzene at high vapor concentrations may produce irritation to the skin, eyes <br /> and upper respiratory tract. Overexposure to ethylbenzene vapors can produce central nervous <br /> system depression with symptoms of headache, nausea, dizziness, shortness of breath and <br /> unsteadiness. Prolonged skin exposure to ethylbenzene may result in drying and cracking of <br /> the skin (dermatitis). Solvent resistant gloves should be worn during sampling to prevent <br /> exposure to the skin. <br />' Xylenes <br /> Depending on exposure factors, inhalation exposure to xylene vapor may produce central <br /> nervous system excitation followed by depression. Exposure to xylene vapor can produce <br /> ' dizziness, staggering, drowsiness and unconsciousness. At very high concentrations, xylene <br /> vapor may produce lung irritation, nausea, vomiting and abdominal pain. Xylene is not <br /> known to possess the chronic bone marrow toxicity of benzene, but liver enlargement and <br /> ' nerve-cell damage have been noted from chronic overexposure. <br /> 11.0 SPILL CONTAINMENT <br /> ' The activities anticipated in the course of this project do not present likely scenarios for <br /> hazardous material sills. Sampling and decontamination media such as hexane, acetone and <br /> ' nitric acid will be handled in small containers. <br /> Plastic sheeting surrounding boreholes shall be sized to contain the volume of spoil/water <br /> ' anticipated to be unearthed. Where significant quantities of potentially contaminated water <br /> will be handled, the sheeting will be bermed to prevent the flow of liquids to surrounding <br /> areas. <br /> 12.0 DECONTAMINATION <br /> ' Decontamination is required each time persons leave a work zone and there is reason to <br /> suspect soil contamination. Decontamination for this type of work relies heavily on the use <br /> of disposable PPE. <br /> t <br /> 12.1 When personnel move between active work zones, minimal decontamination will be <br /> �. required. The Level D exclusion zone ensemble may be left on EXCEPT: <br /> CRC Environmental Risk Management,Inc. Project#2100-250-2 <br /> American Savings Bank 222 North El Dorado Street <br /> April 6, 1993 22 Stockton, California <br /> EAU_ <br />