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Universal Health & Safety Plan For use on all high-risk,industrial and HAZWOPER projects Department of Toxic Substances Control Table 5-4: Summary of Hazardous Properties of Chemical and Airborne Hazards Notes:PEL=Permissible Exposure Limit I TLV=Threshold Limit Value I IP=Ionization Potential I eV=Electron Volt Chemical Name Media Primary Routes PEL TLV IP of .• Tetrachloroethylene(PCE) ❑X Soil ❑X Groundwater Inhalation 100 ppm 25 ppm 9.32 ❑X Vapor ❑ N/A Trichloroethene ❑X Soil ❑X Groundwater Inhalation 25 ppm 10 ppm 9.45 ❑X Vapor ❑ N/A Toluene ❑X Soil ❑X Groundwater Inhalation 200 ppm 20 ppm 8.82 ❑X Vapor ❑ N/A Vinyl Chloride Z Soil ❑X Groundwater Inhalation 1 ppm 1 ppm 8.82 ❑X Vapor ❑ N/A Xylene Z Soil ❑X Groundwater Inhalation 100 ppm 100 ppm 8.45, 8.56 ❑X Vapor ❑ N/A 5.7 Decontamination All possible and necessary steps shall be taken to reduce or minimize contact with chemicals and contaminated/impacted materials while performing field activities. Decontamination steps are outlined in the Hazardous Waste Operations procedure S3AM-117-PR1.All decontaminated equipment shall be visually inspected for contamination prior to leaving the Contaminant Reduction Zone(CRZ). Table 5-5: Decontamination Procedures & Equipment Equipment will be decontaminated using: an Alconox@ and water Alconox®and water solution rinse, and then triple rinsed solution rinse, and then rinsed with distilled water. with distilled water Equipment decontamination will be performed over a bucket and/or tarp to prevent decontamination water from flowing onto the ground surface. Decontamination water will be handled as described in the workplan. Table 5-6: Equipment Decontamination Procedures Drilling Augers Alconox Wet—Alconox Wash and Water Rinse Drilling crown and casing Alconox Wet—Alconox Wash and Water Rinse Interprobe and pump Alconox Wet—Alconox Wash and Water Rinse ©AECOM Restricted Universal Heath and Safety Plan Template(S4[DSC]AM-209-FM2-C) 40 Revision 15 October 18,2023 PRINTED COPIES ARE UNCONTROLLED.CONTROLLED COPY IS AVAILABLE ON COMPANY INTRANET.