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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 /> Remediauotn Events Costs Cost Feasible? <br /> Option 5 Soil Vapor Extraction and Ozone Spargtng <br /> 5 years Momtonng and Sampling $20000 5 $100000 Yes <br /> Subtotal $100,000 <br /> System Installation Costs,4 SVE and 12 Ozone Spar>:me Wells <br /> I event Permit Preparation and Work Plan $1 500 1 $l 500 <br /> 1 wells Permit-SJCEHD Well Install Permits $120 1 $120 <br /> l event Well Install new 5VE&12 new Ozone Wells $10500 1 $10500 <br /> l report Well Installation Report $1500 1 $1 500 <br /> Subtotal $13,620 <br /> SVE/Ozone Snareina System Installation Costs <br /> I event Permit SJAPCD-Permit to Operate $1,000 1 $1000 <br /> 1 event Permit-County&City Building Pemut $1000 1 $1,000 <br /> I event Labor to obtain all pernuts $2000 1 $2,000 <br /> 1 event Labor for Engineering Design Plans $3000 1 $3000 <br /> 1 event Labor for Bid Package and Job Walk $2000 1 $2000 <br /> 1 event PG&E Temp Service Fee $20000 1 $20,000 <br /> 1 event System Installation $70000 1 $70000 <br /> 1 event Equipment Purchase SVE $40000 1 $40000 <br /> 1 event KVA-Ozone Sparge Unit 6 cfm $16,000 1 $1600.0 <br /> 1 event KVA-Oxygen Boosting Unit $3,500 1 $3,500 <br /> 1 event System Start-up $5000 1 $5,000 <br /> Subtotal $163,500 <br /> Annual System Operation Costs.10 SVE and 12 Ozone Spar2e Wells <br /> Assume Operation of SVE for 2 years and Ozone Spargmg for 4 years <br /> 2 years Operations and Maintenance $35,000 2 $70000 <br /> 2 years Utility Charges for gas and power $15000 2 $30000 <br /> 2 years Air Discharge Permit Fees $200 2 $400 <br /> 2 years Operations and Maintenance-Sparge Only $6,000 2 $12000 <br /> 2 years Utility Charges for power-Sparge Only $2400 2 $4800 <br /> Subtotal $117,200 <br /> CLOSURE COS15 <br /> I report Closure Report and Well Dest Work Plan $2500 1 $2,500 <br /> 5 parcels Permit-SJCEHD Well Destruct Permits $100 5 $500 <br /> wells depth Wells to be Destroyed Feet <br /> 9 40 Groundwater Monitoring Wells $11 360 $3960 <br /> 1 70 Deep Groundwater Monitonng Well $11 70 $770 <br /> 10 30 Soil Vapor Extraction Wells $11 300 S'1300 <br /> 7 40 Ozone Sparge Wells $11 280 $3080 <br /> 1 event Disposal of well boxes and surface soil $400 1 $400 <br /> 4 days Field Oversight&Coordination $900 4 $3600 <br /> 1 report Well Destruction Summary Report $1000 1 $1000 <br /> Subtotal $19,110 <br /> SVE Ozone Spargtng Remediation Costs $413,430 <br /> SVE will remove gasoline adsorbed to soil in the vadose zone <br /> Ozone sparging will destroy gasoline dissolved in groundwater and adsorbed to sod in the saturated zone <br /> Ozone sparging will also enhance in situ destruction of gasoline be increasing the aerobic bacterial activity <br /> Thus option will address the offsite migration of dissolved gasoline range petroleum hydrocarbons <br /> File Ranch\TablesTAR Cost Est1RM-Remediation Matrix x1s Page 3 of 4 <br />