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inrTHE <br /> ia .R.UPMARK <br /> ENGINEERS 6 GEOLOGISTS, INC Site-Specific Health and Safety Plan <br /> CHEMICAL HAZARD ASSESSMENT <br /> HazardouV/Tomc Chemicals or Materials Known or Suspected to be on Site <br /> Site IDLH PEL Where Expected Possible Route(s) <br /> Substance Concentrations Concentrations TLV to be Found of Entry <br /> Benzene unknown Ca 3000 ppm 1 ppm soil (2) (1) <br /> Ethyl benzene unknown 2000 ppm 100 ppm soil {1) <br /> Toluene unknown 2000 ppm 100 ppm soil (1) <br /> Xylene unknown 1000 ppm 100 ppm soil (1) <br /> Notes <br /> (Ca) Possible Human Carcinogen <br /> (1) Routes of entry include inhalation, skin absorption, oral ingestion, and skin and eye contact <br />' (2) Measured in air <br />�r Other Hazards <br /> This investigation will evaluate the presence of the chemical constituents listed above Other hazards associated with <br /> drilling and excavation will be noted and controlled <br /> ATTACH ALL MAT MAL SAFETY DATA SHEETS AFTER THIS PAGE <br /> i <br /> r <br />