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/Clayton <br /> E'R tJVP SERVICES <br /> 4.1 Chemical Hazards (mg/kg equals ppm) <br /> Chemucal m Conc of Range A it Mode of Intake Limits IDLH Level of <br /> ( ) <br /> Water, (S)oil PEL/TLV ConcernH/MIL <br /> 1 Total Extractable S-3,800 mg/kg(diesel) Ing 100 ppm(as 3,400 ppm <br /> Petroleum W-4,300 ug/1(diesel) stoddard <br /> H drocarbons solvent) <br /> 2 Total Volatile S-nd(gasoline) Inh 100 ppm(as 3,400 ppm <br /> Petroleum W-4 5 ug/1(gasoline) stoddard <br /> Hydrocarbons solvent) <br /> ' 3 Benzene S-nd Inh, Ing, 1 ppm 500 ppm <br /> W- 80 ug/1 Con,Abs (NIOSH <br /> 4 Xylenes S - 16 mg/kg Inh, Ing, Con 100 ppm 900 ppm <br /> GW-nd <br /> 5 MTBE S -nd not listed not listed not listed <br /> W-3,200 u 1 NIOSH NIOSH NIOSH <br /> 6 Lead(EPA 7420) S -35 mg/kg I* Ing, Con 050 mg/m3 100 mg/m3 (as Pb) <br /> W-07u 1 <br /> Notes Inh=Inhalation Ing=Ingestion Con=Skin Contact Abs=Skin Absorption ppm=parts per million <br /> mg/m,=rmlligrams per cubic meter <br />' Identify locations where the contaminants are of greatest concern on the site: <br /> As noted, fuel contamination appears to be confined to the immediate area of the tank pit, with <br /> limited migration into the surrounding soil <br /> Comments: Any stained or odorous soil should be considered contaminated <br />' References used: <br /> XX NIOSH*/OSHA XX ACGIH (TLV)_ SAX <br /> _ PATTY OHS <br /> *(Niosh June 1994) <br /> Describe other- <br /> North American Emergency Response Guidebook 1996 <br /> 4.2 Physical Hazards <br /> iPhysical hazards are associated with the operation of heavy equipment, as well as contact with <br /> • underground utilities The location of underground piping and wiring if applicable shall be <br /> S\E51ProjT02163\2263-hsp_9c1 02 dnc A-5 <br /> 1 <br />