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Site Safety and Health Plan <br /> Site Contamination Work Plan,ABF Freight Systems,Inc <br /> 2427 West Yosemite Avenue,Manteca,California F Freight System,Inc <br /> . Manteca,California Page 8 <br /> 7 Site Restoration <br /> The hazard analysis presented in Attachment 4 provides a step by step procedural design for each <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/TLV3 OTHER WARNING POTENTIAL` CARCINOGEN' <br /> • NAME (OR PERTINENT PROPERTIES ROUTES OF <br /> CLASS) LIMITSb EXPOSURE <br /> (Specify) <br /> Benzene 0 1 ppm IDLH = 3,000 Gasoline odor Inhalation, D <br /> ppm dermal, <br /> ingestion <br /> Lead <br /> e 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 /> b 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 /> B 1=Probably human carcinogen(sufficient animal evidence with limited human evidence) <br /> Sus ect <br /> N 1PRojECTS132721P1ans and ReportslDrilling SSHP 2 doe May G, 1998 <br />