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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 Task Cost Number of Estimated Option <br /> Remediation Events Costs Cost Feasible" <br /> Option 6 Sod Vapor Extraction,Air Sparging,and Groundwater Extraction <br /> 5 years Monitoring and Sampling $20000 5 $100000 Yes <br /> Subtotal $100,000 <br /> System Installation Costs,t GWE,4 SVE,and 6 AS Wells_(Assume 25 enm Flow) <br /> I report Final Remediation Plan $4000 1 $4000 <br /> 1 event Permit-Preparation and Work Plan $1 500 1 $1500 <br /> 1 wells Permit-SJCEHD Well Install Permits $120 1 $120 <br /> 1 event Well Installation 10 SVE&5 AS Wells $10500 1 $10500 <br /> 1 event Well Installation(1) 6 inch Diameter GWE $3250 1 $3250 <br /> 1 report Well Installation Report $1500 1 $1 500 <br /> Subtotal $20,870 <br /> SVE/AS/GWE System Installation Costs <br /> event Permit-SJCAPCD-Permit to Operate $1000 1 $1000 <br /> 1 event Permit-NPDES Water discharge $2000 1 $2000 <br /> 1 event Permit County&City Building Permit $1000 1 $1000 <br /> 1 event Labor to obtain all permits $2000 1 $2000 <br /> 1 event Labor for Engineering Design Plans $4000 1 $4,000 <br /> 1 event Labor for Bid Package and Job Walk $2,500 1 $2500 <br /> 1 event PG&E Temp Service Fee $20000 1 $20000 <br /> 1 event System Installation $80,000 1 S80000 <br /> 1 event Equipment Purchase $75,000 1 $75,000 <br /> 1 event System Start-up $5000 1 $5000 <br /> Subtotal $192,500 <br /> Annual System Operation Costs 1 GWE 10 SVE and 7 AS Wells 25 m <br /> 3 years Operations and Maintenance $45000 3 $135000 <br /> 3 years Utility Charges for gas and power $15,000 3 $45,000 <br /> 3 years Air Discharge Permit Fees $200 3 $600 <br /> 3 years NPDES discharge Permit Fees $2,000 3 $6,000 <br /> 3 years Labor For Permit Renewal $1000 3 $3000 <br /> Subtotal $189,600 <br /> CLOSURE COSTS <br /> 1 report Closure Report and Well Dest Work Plan $2,500 1 $2,500 <br /> 5 parcels Pentut-SJCEHD Well Destruct Permits $too 5 $500 <br /> wells depth Wells to be Destro ed Feet <br /> 9 40 Groundwater MomtonngWei ls $11 360 $3,960 <br /> 1 70 Deep Groundwater Monitoring Well $11 70 $770 <br /> 10 30 Soil Vapor Extraction Wells $11 300 $3300 <br /> 7 45 Air Sparge Wells $11 315 $3,465 <br /> 1 50 Groundwater Extraction Well $15 50 $750 <br /> 1 event Disposal of well boxes and surface soil $400 1 $400 <br /> 5 days Field Oversight&Coordination $900 5 $4,500 <br /> 1 report Well Destruction Summary Report $1000 1 $1,000 <br /> Subtotal $21,145 <br /> SVE/AS and GEW Remediation Costs $524,115 <br /> This option will remove gasoline adsorbed to soil in the vadose zone and dewatering will removed gasoline dissolved in <br /> groundwater and adsorbed to soil in the saturated zone <br /> Extraction of groundwater will also control the trugration of dissolved hydrocarbons downgradient of the tank pit <br /> Air sparging will also enhance in situ destruction of gasoline be increasing the aerobic bacterial activity <br /> File RanchlTableslPAR Cost Est1RM-Remediation Matrix Table xls Page 4 of 4 <br />