Laserfiche WebLink
Guardino - Crawford -4- May 4 , 2009 <br /> Claim No . 14349 <br /> • Free-phase product in groundwater has been removed to the full extent <br /> practicable , in accordance with the UST Regulations (Title 23 , CCR , <br /> Section 2655) . <br /> Contaminants remaining in the vadose zone cannot migrate in soil vapor <br /> or leach at concentrations that would cause groundwater to exceed water <br /> quality objectives . <br /> • There are no existing water supply wells , surface waters or other <br /> receptors threatened by the remaining contaminants in soil or <br /> groundwater. <br /> • Pollutants remaining in groundwater do not create or threaten to create <br /> risk to human health and safety , or to future beneficial use(s) of the <br /> groundwater. <br /> • The plume size is stable and sufficiently delineated in lateral and vertical <br /> extent and contaminant concentrations detected in groundwater show a <br /> decreasing trend with time . <br /> • There are no current or anticipated uses of the impacted groundwater <br /> within the timeframe projected to meet water quality objectives . <br /> In summary , the remaining mass of hydrocarbons in soil and groundwater is <br /> minor, the extent of contamination is defined , the groundwater plume is shrinking , <br /> and Water Quality Objectives will be achieved in a few years . <br /> Kirk 'Larson , P . G . Date eRobert Trommer, C . H . G . Date <br /> Technical Review Unit Chief, Technical Review Unit <br /> (916) 341 -5663 (916) 341 -5684 <br /> California Environmental Protection Agency <br /> 04 Recycled Paper <br />