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Alternative 2-Pump&Treat, Institutional Controls(IC),and Intrinsic Remediation(IR)
<br /> 2011 Revised Feasibility Study(Appendix D)
<br /> Former Nestle USA,Inc.Facility,Ripon,CA
<br /> Pump&Treat for containment and mass removal
<br /> Pump&Treat Upper Aquifer- 5 existing wells,EU-3
<br /> and EU-4 @ 30 gpm each,EI-1 @ 90 gpm,E-2 @ 60
<br /> gpm,E-6 @ 300 gpm,and five new extraction wells-
<br /> three Int.Aq.wells @ 100 gpm and two Lower
<br /> Aquifer wells @ 200 gpm=
<br /> Capital
<br /> Five new extraction wells 5 wells $400,000
<br /> New Monitoring Wells for performance evaluation
<br /> ($30,000/ea) 4 wells $120,000
<br /> Sub Total Well Installation $520,000
<br /> O&M
<br /> Annual O&M(carbon changeout,electricity,gas
<br /> and other utilities,technician,sampling&analysis) $500,000
<br /> Water disposal costs($1,050/106 gal.) 636.0 $667,800
<br /> Consulting and reporting for O&M 20% $233,560
<br /> Total annual O&M $1,401,360
<br /> Sub Total O&M(first 30 years) $42,040,800
<br /> Decommission
<br /> Decommission costs(wells and extraction system) $300,000
<br /> Consulting and negotiations for decom. 20% $60,000
<br /> Sub Total $360,000
<br /> Sub Total for Pump and Treat Containment and
<br /> Mass Removal 42,920,800
<br /> Institutional Controls
<br /> Abandon Vertical Conduits(up to 5 additional
<br /> wells) $30K per well $150,000
<br /> Water Supply Replacement Activities $450,000
<br /> Investigation of other potential conduits $100,000
<br /> Coordinate Municipal Pumping 4 yearly meetings
<br /> Meetings with City of Ripon $400,000
<br /> Duration 20 years
<br /> Sub Total for Institutional Control $1,100,000
<br /> Intrinsic Remediation(IR)
<br /> Monitor existing wells quarterly 60 wells in all
<br /> aquifers)
<br /> Work Plan,Sampling and Reporting to Establish
<br /> Lines of Evidence for IR(1st year) $200,000
<br /> Five year Evaluation @$100,00 per event 30 years $600,000
<br /> Annual Monitoring(per year) 29 years $20,000
<br /> Sub Total Intrinsic Remediation 30 years $1,380,000
<br /> Revised Alternative 2 Total Cost $45,400,800
<br /> Ongoing monitoring,sampling,analysis,reporting,and project management is not included in this cost
<br /> estimate.
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