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TABLE B.1-1 amec�9
<br /> Feasibility Study Cost Estimate
<br /> In Situ Air Sparging Biobarrier
<br /> Nestle Ripon
<br /> 2.0 PRE-CONSTRUCTION COSTS
<br /> Quantity Unit Unit Cost Cost Source
<br /> 2.1 remedial design(6%of capital costs) 1 LS $ 2,286,228 $ 2,286,228 EPA,2000
<br /> 2.2 permitting&legal(5%of capital costs) 1 LS $ 1,905,190 $ 1,905,190 REM IV
<br /> Estimated Pre Construction Costs $ 4,191,418
<br /> 3.0 CONSTRUCTION COSTS
<br /> 3.1 Contractor and Equipment Costs-Sparge Well
<br /> Installation Quantity Unit Unit Cost Cost Source
<br /> 3.1.1 utility clearance 5 DAY $ 3,000 $ 15,000 amec geophysicist
<br /> 3.1.2 mobilization(4xdrilling rigs) 4 LS $ 5,000 $ 20,000 contractor estimate
<br /> 3.1.3 per them(4xdrillingcrew) 552 DAY $ 1,600 $ 883,200 contractor estimate
<br /> 3.1.4 bobcat(moving soil drums) 552 DAY $ 250 $ 138,000 contractor estimate
<br /> 3.1.5 sonic drilling 441,320 FT $ 60 $ 26,479,200 contractor estimate
<br /> 3.1.6 stainless steel well material 441,320 FT $ 12 $ 5,295,840 Diedrich well supply
<br /> Estimated Sparge Well Construction Costs $ 32,831,240
<br /> 3.2 Contractor and Equipment Costs-Air Sparge
<br /> System Quantity Unit Unit Cost Cost Source
<br /> 3.2.1 electrical power connection 1 LS $ 18,000 $ 18,000 NAVFAC,2001
<br /> 3.2.2 support facilities 120 /125 CFM $ 6,000 $ 720,000 NAVFAC,2001
<br /> 3.2.3 materials 5 ACRE $ 12,000 $ 60,000 NAVFAC,2001
<br /> 3.2.4 compressors;SCADA;manifold/valve system 120 /125 CFM $ 30,000 $ 3,600,000 NAVFAC,2001
<br /> Estimated Air Sparge System Construction Costs $ 4,398,000
<br /> 3.3 Contractor and Equipment Costs- Performance
<br /> Monitoring Wells Quantity Unit Unit Cost Cost Source
<br /> 3.3.1 mobilization(2xdrilling rigs) 0 LS $ 5,000 $ - contractor estimate
<br /> 3.3.2 per diem(2xdrilling crew) 23 DAY $ 800 $ 18,400 contractor estimate
<br /> 3.3.3 bobcat(moving soil drums) 23 DAY $ 250 $ 5,750 contractor estimate
<br /> 3.3.4 sonic drilling 9,000 FT $ 60 $ 540,000 contractor estimate
<br /> 3.3.5 cmt well material 9,000 FT $ 30 $ 270,000 contractor estimate
<br /> 3.4.6 groundwater sampling(analytical) 363 EA $ 70 $ 25,410 laboratory estimate
<br /> 3.4.7 isurvey 1 LS $ 15,000 $ 15,000 amec estimate
<br /> Estimated Performance Monitoring Well Construction Costs $ 874,560
<br /> Estimated Contractor and Equipment Costs(total) $ 38,103,800
<br /> 3.4 Supervision/Labor Costs Quantity Unit Unit Cost Cost Source
<br /> 3.4.1 construction and project management(10% 1 LS $ 3,810,380 $ 3,810,380 EPA,2000
<br /> estimated contractor costs)
<br /> 3.4.2 groundwater sampling(labor) 45 EA $ 700 $ 31,500 amec estimate
<br /> 3.4.3 well development 45 EA $ 1,000 $ 45,000 amec estimate
<br /> Estimated Supervision Costs $ 3,886,880
<br /> Estimated Implementation Costs $ 41,990,680
<br /> 4.0 OPERATION AND MAINTENANCE COSTS
<br /> Quantity Unit Unit Cost Cost Source
<br /> 4.1 electric 22,567 MW-hr $ 100 $ 2,256,700 USACE,2008
<br /> 4.2 maintenance 52 WK $ 10,000 $ 520,000 amec estimate
<br /> 4.3 equipment repairs 1 YR $ 10,000 $ 10,000 amec estimate
<br /> 4.4 groundwater sampling(labor) 90 EA $ 700 $ 63,000 amec estimate
<br /> 4.5 groundwater sampling(analytical) 2,904 EA $ 70 $ 203,280 amec estimate;quarterly events
<br /> 4.6 reporting 1 LS $ 100,000 $ 100,000 1 amec estimate/$25k/Q
<br /> Estimated Operation and Maintenance Costs $ 3,152,980
<br /> 30 Year Present Value(discount rate =7%) $ 39,125,459
<br /> Total Project Costs $ 86,501,437
<br /> Notes
<br /> Cells shaded blue indicate calculated values from supporting calculation sheets
<br /> REMIV is CH2M Hill Remediation Cost Estimating Method
<br /> NAVFAC,2001 -Naval Facilities Engineering Command Air Sparging Guidance Document
<br /> USACE,2008=US Army Corp of Engineers Air Sparging Guidance Document
<br /> AMEC Geomatrix, Inc.
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