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Health & Safety Plan at Rally's Stockton page 6 <br /> - PVC, Latex or Neoprene disposable gloves should be worn under nitrile <br /> gloves to provide an extra measure of hand protection when handling <br /> heavily contaminated soil and water samples, <br /> Chemical splash goggles will be worn when increased splash hazards <br /> exist, such as steam cleaning activities, and <br /> Respiratory protection will be worn during activities that expose workers <br /> to hazardous levels of airborne contaminants. Direct-reading monitoring <br /> will be performed. <br /> Individuals at drilling sites not directly exposed to contaminated soils or liquids <br /> need not wear protective equipment, <br /> 8.0 HYDROCARBON HAZARD CRITERIA <br /> Exposure to elevated levels of hydrocarbon vapors presents potential health <br /> risks that need to be properly controlled. Work practices and methods will be <br /> instituted to limit exposures. Where elevated exposures persist, respiratory <br /> protection will be the primary control method to protect personnel from <br /> inhalation of hydrocarbon vapors. In typical refined petroleum compounds, <br /> benzene has been present at 1 % of the total hydrocarbon. Criteria for the use <br /> of respiratory protection is based on limiting potential exposures to benzene. <br /> A working limit of 10 ppmv total hydrocarbon is proposed as the maximum <br /> acceptable hydrocarbon level of exposure without respiratory protection. To <br /> assure benzene exposures are controlled below a 0.1 ppmv limit, Drager <br /> benzene detector tubes will be used if real time measurements indicate <br /> persistent hydrocarbon levels above 3 ppmv. If the benzene detector tube <br /> measurements indicate that levels exceed 0.1 ppmv, respirators will be <br /> required. If benzene concentrations exceed 1 .0 ppmv, work will be stopped. <br /> Table 1 summarizes the various hydrocarbon vapor criteria and appropriate <br /> responses. <br />