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Kennedy/Jenks Consultants remove from service any tool or piece of equipment that is damaged. Be aware of the potential of a burning hazard should equipment get hot during use. Do not wear any jewelry (including finger rings) or loose fitting clothes that may get caught in equipment while conducting field activities. Personnel should be aware of the potential presence of black widow spiders, wasp/hornets, or snakes in wellhead or other enclosures. When driving, personnel should be aware of the potential for wildlife to be on the road, or run into the road. Driving after dark should be limited as much as possible. When driving, personnel should be aware of the potential of falling asleep at the wheel and take rest stops and breaks, at regular intervals or as needed. Do not drive to and from the site if weather conditions make road travel unsafe. 5.2 Potential Chemical Hazards The known chemicals tested and detected include total petroleum gasoline and diesel (TPHg and TPHd), and lead have been detected in groundwater and/or soil samples collected at the site. Field personnel could potentially be exposed to organic molecules and lead at the site by direct contact with soil or groundwater, through inhalation of dusts containing organic chemicals or through inhalation of organic chemical vapors. Field personnel will minimize potential chemical hazards by 1) avoiding direct contact with groundwater and soil, 2) performing air monitoring to determine necessary level of personal protective equipment, and 3) avoiding generation of dust. Ingestion of particulate matter containing chemicals is another general exposure route. However, for site personnel, the potential for this type of exposure is minimal. Safe work practices, including restriction of eating, drinking, or smoking to certain times and places, will be enforced at the work site. 5.2.1 Groundwater Samples Chemicals detected in groundwater from the site and the highest detected concentrations are listed in Table 1. 5.2.2 Soil Samples TPHg, TPHd, lead, and VOCs (low levels) have been detected in subsurface soil samples collected at the site. The highest reported concentrations are listed in Table 2. Available Threshold Limit Values (TLV) or Permissible Exposure Limits (PEL) published for the chemicals detected in soil and groundwater are listed in Table 3. BNSF Mormon Yard - Soil Sampling Site-Specific Health and Safety Plan Mormon Yard, Stockton, California © 2016 Kennedy/Jenks Consultants Page 13 11sfocadlprojectslis-proj1201311365020.01_bnsf stockton work planI2016 hrsc work plan appendiceskappendixb_hasp12016_hasp_2015content_final.docx