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LFR Levine-Fricke <br /> Known Compounds Source Known Concentration Range <br /> (soil/water/drum, etc.) <br /> Lowest Highest <br /> Arsenic Soil ND 84.9 mg/kg <br /> Chromium(total) Soil ND 50.9 mg/kg <br /> Zinc Soil 27.7 mg/kg 32,900 mg/kg <br /> Arsenic Groundwater ND 51.6µg/l <br /> Barium Groundwater 231 µg/l 2,810µg/l <br /> MtBE Groundwater ND 26µg/l <br /> Notes: ug/l = micrograms per liter; ND = not detected <br /> Exposure pathways of concern for chemical compounds that may be present at the Site <br /> are inhalation of airborne contaminants, direct skin contact with contaminated <br /> materials, and incidental ingestion of affected media. Wearing protective equipment <br /> and following decontamination procedures listed in Section 9 can minimise dermal <br /> contact and incidental ingestion. To minimise inhalation hazards, dust or vapor control <br /> measures will be implemented, where necessary, and action levels will be observed <br /> during scheduled activities. Site-specific action levels are presented in Section 10. <br /> Chemical descriptions of chemicals of concern, including health effects and exposure <br /> limits, are located in Appendix A. <br /> As a precautionary measure, on-site worker exposure to airborne contaminants will be <br /> monitored during intrusive site activities. A calibrated photoionization detector (PID) <br /> with a lamp strength of 10.6 eV or a flame ionization detector (FID) will be used to <br /> monitor changes in exposure to volatile organic compounds (VOCs). A miniature real- <br /> time aerosol monitor (mini-RAM) will be used to monitor exposure to total dusts <br /> during intrusive earthwork activities. Personnel will perform routine monitoring during <br /> site operations to evaluate concentrations of VOCs and/or total dusts in worker <br /> breathing zones. If VOCs and/or total dusts are detected above predetermined action <br /> levels specified in Section 10, the procedures found in Section 7 of this HSP will be <br /> followed. <br /> In accordance with the Hazard Communication standard, material safety data sheets <br /> (MSDSs) will be maintained on site for chemical products used by LFR personnel at <br /> the Site. In addition, containers will be clearly labeled in English to indicate their <br /> contents and appropriate hazard warnings. <br /> 6.0 PHYSICAL HAZARDS <br /> The following potential physical hazards may be encountered during scheduled <br /> activities at the Site: <br /> HSP-T`acyTireFin:-GWS"ingjah Page 5 <br />