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_ P <br /> ,ON <br /> Wbodwaid-Clyde Consultant-, <br /> Table 6. General Pemedial Approaches and Associated Technologies for Remediation at <br /> Caltrans Shop 10 Facility in Stockton, California <br /> General Remedial Approach Associated Technology <br /> Soils Remediation <br /> Source Control Identify and repair leaks; or remove <br /> leaking tank. This work has already been <br /> performed at the Shop 10 Facility and is <br /> not discussed further. <br /> ExtractioNon-site treatment or disposal Excavate all or part of soil; treat by <br /> of soils on-site incineration, on-site landfill, or <br /> land treatment. <br /> Extraction/off-site treatment Excavate all or part of soil; dispose of in <br /> commercial incinerator or commercial <br /> landfill. <br /> 1 I situ treatment Biodegradation, vapor extraction, in situ <br /> steam/air stripping, soil washing, <br /> chemical neutralization <br /> Physical Cantainmenl Slurry wall, fixation <br /> Qroundwater Bern dialion <br /> Contaminated groundwater control and on- Install hydraulic barriers (may be <br /> site treatment. utilized with physical control options); <br /> recover and treat contaminated <br /> groundwater; Implement long-term <br /> groundwater monitoring. The depth to <br /> groundwater precludes the use of this <br /> alternative. II is not considered further. <br /> 1Contaminated groundwater extraction and Pump from one or more recovery wells to <br /> on-site treatment collection point; treat biofoglcally,by air <br /> stripping, by carbon adsorption, by <br /> separation, by coalescing, by ultraviolet, <br /> or other suitable methods. <br /> i <br /> 17 <br />