| This report provides information about the optimization review conducted at the State Road 114 Ground Water Plume Superfund Site in the City of Levelland in Hockley County, Texas. An optimization review considers the goals of the remedy, available site data, conceptual site model (CSM), remedy performance, protectiveness, cost-effectiveness and closure strategy. A strong interest in sustainability has also developed in the private sector and within federal, state, and municipal governments. Consistent with this interest, optimization now routinely considers green remediation and environmental footprint reduction during optimization reviews. This groundwater plume site contains the primary contaminants 1,2-dichloroethane and benzene. The source of the groundwater contamination is a former petroleum products refinery that operated between 1939 and 1954. The groundwater remedy consists of a groundwater treatment system and a soil vapor extraction system. |