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TABLE 25 <br /> FINAL EVALUATION OF REMEDIAL ALTERNATIVES <br /> CORRAL HOLLOW SANITARY LANDFILL ENGINEERING FEASIBILITY STUDY <br /> TECHNICAL CONSIDERATIONS <br /> Effectiveness Constructability Serviceability <br /> Remedial Alternative Rating Weight Score Rating Weight Score Rating Weight Score <br /> No.1: Final Cover Extension 8 80 7 56 9 54 <br /> No.2:Landfill Gas Extraction System Enhancements 9 90 8 64 7 42 <br /> No.3: Injected Air Sparging/Vapor Extraction System 7 10 70 4 8 32 3 6 18 <br /> No.4:Intrinsic Remediation 3 30 10 80 10 60 <br /> No.5: Groundwater Extraction with Air Stripping 6 60 6 48 3 18 <br /> No.6: Groundwater Extraction with Granular Activated Carbon Treatment 6 60 1 40 1 1 6 <br /> COST CONSIDERATIONS <br /> Capital Costs O&M Costs <br /> Remedial Alternative Rating Weight Score Rating Weight Score <br /> No.1: Final Cover Extension 4 24 9 27 <br /> No.2:Landfill Gas Extraction System Enhancements 9 54 8 24 <br /> No.3: Injected Air Sparging/Vapor Extraction System 0 0 0 0 <br /> No.4:Intrinsic Remediation 10 6 60 9 3 27 <br /> No.5: Groundwater Extraction with Air Stripping 4 24 2 6 <br /> No.6: Groundwater Extraction with Granular Activated Carbon Treatment I 1 18 0 0 <br /> FINAL SCORE <br /> Technical Cost Total <br /> Remedial Alternative Score Score Score <br /> No.1: Final Cover Extension 190 51 241 <br /> No.2:Landfill Gas Extraction System Enhancements 196 78 274 <br /> No.3: Injected Air Sparging/Vapor Extraction System 170 0 170 <br /> No.4:Intrinsic Remediation 126 87 213 <br /> No.5: Groundwater Extraction with Air Stripping 126 30 156 <br /> No.6: Groundwater Extraction with Granular Activated Carbon Treatment 1 106 18 124 <br />