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THE � -- <br />: in rim GMARK <br /> ROUP <br /> ENGINEERS d GEOLOGISTS, INC. Site-Specific Health and Safety.Plan. <br /> CHEMICAL HAZARD ASSESSMENT <br /> j^ Hazardous/Toxic Chemicals or Materials Known or Suspected to be on Site <br /> L 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 1 <br /> Ethyl benzene unknown 2000 ppm - - 100 ppm soil {1) <br /> Toluene unknown 2000 ppm _ 100 ppm soil' {i) <br /> Xylene unknown 1000 ppm 100 ppm soil {i) <br /> I <br /> Notes: <br /> (Ca) Possible Human Carcinogen <br /> (1) Routes of entry include inhalation, skin absorption, oral ingestion, and skin and eye contact. :.. . <br /> Other Hazards - - - - <br /> This investigation will evaluate the presence of the chemical constituents listed above. <br /> ATTACH ALL MATERIAL-SAFETY DATA SHEETS AFTER-THIS'PAGE <br /> = Page 4 <br />