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Alternative 3-Short-term(5-year)Pump and Treat;In-situ Treatment of 2
<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-use 5 existing wells:
<br /> EU-3 and EU-4 @ 30 gpm each,EI-1 @ 90gpm,E
<br /> 2 @ 60 gpm,E-6 @ 300 gpm. All wells pumping
<br /> for 5 years=
<br /> 270 million gallons per year
<br /> Capital
<br /> New Monitoring Wells for performance
<br /> evaluation($30,000/ea) 4 wells $120,000
<br /> Sub Total Well Installation $120,000
<br /> O&M
<br /> Annual O&M(carbon changeout,electricity,gas
<br /> and other utilities,technician,sampling&
<br /> analysis) $300,000
<br /> Water disposal costs($1,050/106 gal.) 268.0 $281,400
<br /> Consulting and reporting for O&M 20% $116,280
<br /> Total annual O&M $697,680
<br /> Sub Total O&M(first 5 years) $3,488,400
<br /> Decommission
<br /> Decommission costs(wells and extraction
<br /> system) $150,000
<br /> Consulting and negotiations for deoom. 20% $30.000
<br /> Sub Total $180,000
<br /> Sub Total for Pump and Treat for Containment
<br /> and Mass Removal $3,788,400
<br /> In-situ Treatment in Upper/Intermediate Aquifer
<br /> In-situ treatment,Capital and Installation Area=200ftx150ft,9 wells
<br /> Risk evaluation,WDR permitting,etc. $100,000
<br /> Treatment zone characterization for design $200,000
<br /> Mass removal with in situ treatment $800,000
<br /> Consulting,permitting,constr oversight,etc. 20% $220,000
<br /> Sub Total $1,320,000
<br /> O&M
<br /> Performance Monitor Annual O&M $400,000
<br /> Consulting,reporting,and reg.interaction 20% $80.000
<br /> Annual O&M $480,000
<br /> Sub Total O&M 2 years $960,000
<br /> Decommission
<br /> Decommission costs 9 wells $90,000
<br /> Consulting and negotiations for decom. 20% $18,000
<br /> Sub Total Decommissioning $108,000
<br /> Sub Total for In-situ Treatment in 2locations $3,348,000
<br /> Upper/Intermediate Aquifer
<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(1 at year) $200,000
<br /> Five year Evaluation @$100,00 per event 30 years $600,000
<br /> Annual Monitoring(per year) 29 years $580,000
<br /> Sub Total Intrinsic Remediation 30 years $1,380,000
<br /> Revised Alternative 3 Total Cost $9,616,400
<br /> Ongoing monitoring,sampling,analysis,reporting,and project management is not included in
<br /> this cost estimate.
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