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r' <br /> r <br /> SITE HEALTH & SAFETY PLAN <br /> • <br /> 3 . 0 JOB HAZARD ANALYSIS <br /> The possible mayor contaminants to be encountered on the <br /> project are Petroleum Hydrocarbons and Volatile Organic <br /> Compounds (VOCs) . <br /> There is currently no known air concentration data <br /> available for VOCs emissions in the direct breathing <br /> zone of personnel working around the piezometers or <br /> exposed soils. <br /> Inhalation and dermal (absorption) hazards are the major <br /> area of concern, regarding the exposure to VOCs. <br /> Results of toxicological studies on animal exposure to <br /> pure concentrations of the VOCs that have been detected <br /> at the site are detailed in "Handbook of Toxic and <br /> Hazardous Chemicals" , by M. Sittig (1981) , and <br /> "Dangerous -Properties of Industrial Materials" , by N. <br /> Irving Sax (1984) . An additional reference source used <br /> for the development of this Site Safety Plan is the <br /> "Documentation of the Threshold Limit Values" , published <br /> by the ACGIH (American Conference of Governmental <br /> Industrial Hygienists, Inc. <br /> Gasoline <br /> Gasoline has an appearance of a clear, aromatic, <br /> volatile liquid, and is a mixture of aliphatic <br /> hydrocarbons. The flash point is listed at -50°F, and <br /> has an LEL (Lower Explosive Limit) of approximately <br /> 1 . 3%. <br /> The TLV for gasoline is listed as 300 ppm in air. <br /> Diesel Fuel <br /> This material currently has no TLV specifically adopted <br /> by NIOSH. However, it has been listed as a suspect <br /> carcinogen, and is currently being tested for <br /> carcinogenicity. <br /> Benzene <br /> Benzene is a common constituent of gasoline and other <br /> petroleum product materials. It is a clear, colorless <br /> liquid, with a flash point listed at 120F. <br /> The currently established TLV for Benzene is 10 ppm in <br /> air. However, the American Conference of Governmental <br /> Hygienists (ACGIH) has recommended a TLV of 1 ppm be <br /> adopted. <br /> 3 <br />