Laserfiche WebLink
is , <br /> iSite Background Information: Bobs Muffler <br />' Page 5 of 5 <br /> The contaminants began to migrate laterally as well as vertically in Layer 2;the direction of lateral <br /> migration was primarily toward the northwest, in the preferred ground water flow direction. The <br /> lateral and vertical extent of soil and ground water contamination has been defined. <br />' Significant petroleum-hydrocarbon impact to soil in the vadose zone is present in borings B2-20.25, <br /> B4-20,MW2-25,and MW4-20,in the area of the former USTs and in off-site well MW9-20.TPH-g, <br /> TPH-d, and TPH-mo are present at maximum concentrations of 670 mg/kg(B2-20.25), 150 mg/kg <br /> (MW9-20), and 120 mg/kg (B2-20.25), respectively. Most of the contamination appears to reside <br /> at the top of the clay layer, at approximately 20 feet bsg. <br /> 1 <br /> i <br /> Advanced GcoEnvlronmental,Inc. <br />