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i <br /> 3 4 JOB HAZARD ANALYSIS <br /> A. CHEMICAL HAZARDS <br /> The possible major contaminants to be encountered on the project are Petroleum <br /> Hydrocarbons and volatile organic compounds (VOCs) It is not anticipated that VOC <br /> emissions in the direct breathing zone of personnel working around the monitoring wells or <br /> borings will be higher than background levels <br /> Inhalation and dermal (absorption) hazards are the major area of concern, regarding the <br /> exposure to VOCs Results of toxicological studies on animal exposure to pure <br /> concentrations of the VOCs that have been detected at the site are detailed in Handbook of <br /> Toxic and Hazai dons Chemicals, by M Sittig (1981), and Dangerous Y7 open ties of <br /> Industrial Mate1 ials, by N Irving Sax (1984) An additional reference source used for the <br /> development of this Site Safety Plan is the Documentation of the Threshold Lunn vahies, <br /> published by the ACGLI4 (American Conference of Governmental Industrial Hygienists, Inc } <br /> Gasoline <br /> Gasoline has an appearance of a clear, aromatic, volatile liquid, and is a mixture of aliphatic <br /> hydrocarbons The flash point is listed at -50 degrees Fahrenheit, and has an LEL (Lower <br /> Explosive Limit) of approximately 1 3 percent <br /> The TLV for gasoline is listed as 300 parts per million (ppm) in air <br /> Diesel Fuel <br /> This material currently has no TLV specifically adopted by NIOSH However, it has been <br /> listed as a suspected carcinogen, and is currently being tested for carcinogenicity <br /> Benzene <br /> Benzene is a common constituent of gasoline and other petroleum product materials It is a <br /> clear, colorless liquid, with a flash point listed at 12 degrees Fahrenheit <br /> 9110081A/SSP 3 December 22 1997 <br />