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Kennedy/Jenks Consultants hazards by (1) avoiding direct contact with groundwater and soil, (2) performing air monitoring to determine necessary level of personal protective equipment and (3) minimizing generation of dust Ingestion of particulate matter containing chemicals is another general exposure route However, for the 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 worksite Groundwater Samples The maximum concentrations of VOC detected in the groundwater in monitoring wells on the site were 110 ppm for TPH, 15 ppm for Benzene, 4 9 ppm for Toluene, 2 3 ppm for Ethylbenzene, and 8 5 ppm for Xylene Highest detected concentrations of the above-named VOC for each monitoring well are presented in Table 1 Soil Samples Various VOCs have been detected in subsurface soil samples collected at the site The VOCs and their 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 5.0 COMMUNITY HAZARD ANALYSIS Generally, insignificant particulate and vapor emissions are generated during routine soil and groundwater sampling activities During construction-related activities, vapor . emissions will be closely monitored by an OVA meter and dust (particulates) will be controlled with the use of potable water Onsite worker exposure to chemicals at concentrations of concern is not expected Potential exposures to the surrounding community will likely be much less than potential onsite worker exposure, and is therefore also not expected to be of concern. 6 0 PROTECTIVE ACTIONS 6 1 Personnel Protective Equipment Field personnel will wear equipment to protect against the potential physical and chemical hazards which have been identified herein and those that become apparent in the field Level D protection will be required at a minimum for field activities at the site Depending upon field activity, level D personal protective equipment to be used will include • ANSI-approved hard hat • Chemical resistant gloves - nitrile • Boots, steel toe and shank • Boot covers a Work clothes or Tyvek SEmptM&SPIan 6 910557 00