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1 <br />' Sl <br /> . to Background Information R M B Garage (Erardi Ventures) <br />' Page 4 of 4 <br /> nominal 2-foot bentonite chip plug was installed above the filter pack and hydrated The wells were <br />' then grouted to near the surface with Portland cement,and water-tight,traffic-rated well boxes were <br /> installed over the wells <br /> TPH-g was detected in twelve of the soil samples collected from bonngs MW-1 through MW-4 and <br /> B5 at concentrations ranging from 1 3 mg/kg in sample MW-4-30 to 2,200 mg/kg in sample <br />' MW-3-30 TPH-d was detected in four samples at concentrations ranging from 20 mg/kg (B5-24) <br /> to 200 mg/kg(MW-4-40),and TPH-mo was detected In one sample at a concentration of 870 mg/kg <br /> (MW-3-30) <br /> One or more BTEX compounds were detected in samples collected from borings MW-1 through <br /> MW-4 and B5, the maximum concentrations were detected from sample MW-3-30 at 11 mg/kg <br />' benzene, 79 mg/kg toluene, 33 mg/kg ethylbenzene, and 128 mg/kg total xylenes <br /> I� <br /> I <br /> • <br /> Advanced GeoEnvironmental,Inc <br />