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TABLE 6 <br /> Initial Screening of Remedial Technologies for Groundwater <br /> General Response Action Remedial Technology Technology Options Screening Comments <br /> 1. No Action — — Required for consideration <br /> 2. Monitoring Only — Regular groundwater Potentially applicable for sites with <br /> monitoring for contaminants limited known contamination <br /> 3. Collection Groundwater collection Pump and treat Potentially applicable <br /> 4. Treatment Physical treatment Air sparging Potentially applicable for light-end fuels <br /> and chlorinated compounds <br /> Vacuum extraction Applicable only when used with <br /> groundwater pump and treat <br /> Chemical Treatment Ozone sparging Potentially applicable for organic <br /> contamination <br /> Hydrogen peroxide injection Potentially applicable for organic <br /> contamination only <br /> 5. Containment Vertical barriers Slurry wall Areal extent of contamination too point- <br /> specific to be practical <br /> Grout curtain Areal extent of contamination too point- <br /> specific to be practical <br /> 259703/Tables/Table 6 <br />