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TABLE 1 <br /> Remediation Feasibility Matrix <br /> Ranch Market <br /> 23596 South Santa Fe Road <br /> Riverbank California <br /> Estimated <br /> Duration of Tush Cost Number of Estimated Option <br /> Remediation Events Costs Cost Feasible? <br /> Option 4 Soil Vapor Extraction and Air Spargmg <br /> 5 years Monitoring and Sampling $20000 5 $100000 Yes <br /> Subtotal $100,000 <br /> System Installation Costs,4 SVE and 6 AS Wells_ <br /> 1 report Final Remediation Plan $3000 1 $3000 <br /> l event Permit Preparation and Work Plan $1 500 1 $1 500 <br /> 1 wells Permit SJCEHD Well Install Permits $120 I $120 <br /> I event Well Installation 10 SVE&5 AS Wells $10500 1 $10500 <br /> l report Well Installation Report $1 500 1 $1 500 <br /> Subtotal $16,620 <br /> SVE/AS System Installation_Costs <br /> I event Permit SJCAPCD Permit to Operate $1000 1 S1000 <br /> 1 event Permit-County&City Building Permit $1000 1 $1 000 <br /> 1 event Labor to obtain all periruts $2,000 1 $2000 <br /> 1 event Labor for Engineering Design Plans $3,000 1 $3000 <br /> 1 event Labor for Bid Package and Job Walk $2000 1 $2000 <br /> l event PG&E Temp Service Fee $20000 1 $20,000 <br /> 1 event System Installation S70000 1 $70000 <br /> 1 event Equipment Purchase $50000 1 $50000 <br /> 1 event System Start-up S5000 1 $5,000 <br /> Subtotal $154,000 <br /> Annual System Operation Costs,10 SVE and 7 AS Wells <br /> 3 years Operations and Maintenance $35,000 3 $105,000 <br /> 3 years Utility Charges for gas and power $15000 3 $45,000 <br /> 3 years Air Discharge Permit Fees $200 3 $600 <br /> Subtotal $150,600 <br /> CLOSURE COSTS <br /> 1 report Closure Report and Well Dest Work Plan $2,500 1 $2,500 <br /> 5 parcels Permit-SJCEHD Well Destruct Permits $100 5 $500 <br /> wells depth Wells to be Destroy-ed Feet <br /> 9 40 Groundwater Monitoring Wells $11 360 $3,960 <br /> 1 70 Deep Groundwater Monitoring Well $11 70 $770 <br /> 10 30 Soil Vapor Extraction Welts $11 300 $3300 <br /> 7 45 Air Sparge Wells $11 315 $3,465 <br /> 1 event Disposal of well boxes and surface soil $400 1 $400 <br /> 4 days Field Oversight&Coordination $900 4 $3,600 <br /> 1 report Well Destruction Summary Report $1,000 1 $1,000 <br /> Subtotal $19,495 <br /> SVE/AS Remediation Costs $440,715 <br /> This option will remove gasoline adsorbed to soil in the vadose zone <br /> Air sparging will remove gasoline dissolved to groundwater and adsorbed to soil in the saturated zone <br /> Air spargmg will also enhance in situ destruction of gasoline be increasing the aerobic bacterial activity <br /> This option will not address the offsite migration of dissolved gasoline range petroleum hydrocarbons <br /> File RanchlTableslPAR Cost Est1RM Remediation Matrix Table xls Page 2 of 4 <br />