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Site Safety and Health Plan <br /> UST Removal Project <br /> ABF Freight System,Inc. <br /> • Manteca,California Page 8 <br /> feature of work. Potential hazards, mitigating measures, level of PPE, equipment needs, and <br /> specialized training requirements are outlined in the Hazard Analysis. <br /> 4.2 Chemical Hazards <br /> Chemical contaminants listed in Table 2-1 may or may not present health hazards to field <br /> personnel. The concentration of the contaminant, extent of area contaminated, and the likelihood <br /> of exposure all must be considered. Potential for exposure to the identified substances of <br /> concern (and related chemicals) listed in Table 2-1 during the site activities proposed for this <br /> investigation is low and will be further reduced through the use of personal protective equipment. <br /> An assessment of the chemicals of concern, including exposure limits, odor thresholds, and <br /> health effects, is presented in Table 4-1. <br /> TABLE 4-1 <br /> ASSESSMENT OF CHEMICALS OF CONCERN <br /> CHEMICAL PEL/TLV' OTHER WARNING POTENTIAL` CARCINOGEN' <br /> NAME (OR PERTINENT PROPERTIES ROUTES OF <br /> CLASS) LIMITS' EXPOSURE <br /> (Specify) <br /> Benzene 0.1 ppm IDLH = 3,000 Gasoline odor Inhalation; D <br /> ppm dermal; <br /> ingestion <br /> Lead <br /> a OSHA Permissible Exposure Limit (PEL)/American Conference of Governmental Industrial Hygienists <br /> (ACGIH)Threshold Limit Value(TLV). Both values represent time-weighted average concentrations for an <br /> 8-hr.workday. <br /> ' Other Pertinent Limits: <br /> STEL=ACGIH or OSHA 15-minute Short-term Exposure Limit <br /> Ceiling=OSHA's maximum exposure concentration for which an employee will not be exposed during any <br /> period without respiratory protection. <br /> LEL=Lower explosive limit in air,%by volume <br /> IDLH=Immediately Dangerous to Life and Health,the concentration at which one could be exposed for 30 <br /> minutes without experiencing escape-impairing or irreversible health effects. <br /> "Dermal"-Indicates localized effects at point of exposure(e.g.,dermatitis). <br /> "[Skin]"-Indicates the potential for exposure due to skin absorption as well as by inhalation of vapors. <br /> Carcinogen <br /> Yes <br /> US EPA Classification A or B 1 <br /> A=Confirmed human carcinogen(sufficient evidence of carcinogenicity in humans) <br /> B1=Probably human carcinogen(sufficient animal evidence with limited human evidence) <br /> Suspect: <br /> US EPA Classification B2 <br /> • B2=Probably human carcinogen(sufficient animal evidence with inadequate or lack of human data) <br /> Experimental: <br /> \\SERVERI\C-DRIVE\PROJECTS\3272\Plans and Reports\Site Safety Health Plan.doc February 10, 1998 <br />