|
14
<br />Table 19 — 50-Year Life Cycle Cost Summary
<br />Gravity Filter Water Treatment Plant
<br />Item
<br />0-Year Life Cycle
<br />Cost
<br />Annual Cost
<br />Capital Project Costs
<br />$32,400,000
<br />$1,981,478
<br />Equipment Replacement
<br />$9,694,858
<br />$308,522
<br />Labor
<br />$6,488,398
<br />$110,000
<br />Gas
<br />$1,179,709
<br />$20,000
<br />Chemicals
<br />$6,488,398
<br />$110,000
<br />Insurance
<br />$1,769,563
<br />$30,000
<br />Electricity
<br />$6, 783, 325
<br />$115, 000
<br />Equipment Repair
<br />$7,078,253
<br />$120,000
<br />Total 50 Year Life Cycle Cost
<br />$71,880,000
<br />Table 20 — 50-Year Life Cycle Cost Summary
<br />Pressure Filter Water Treatment Plant
<br />50-Year Life Cycl
<br />Cost
<br />Annual Cost
<br />Capital Project Costs
<br />$30,780,000
<br />$1,882,404
<br />Equipment Replacement
<br />$13,985,687
<br />$445,069
<br />Labor
<br />$6,488,398
<br />$110,000
<br />Gas
<br />$1,179,709
<br />$20,000
<br />Chemicals
<br />$6,488,398
<br />$110,000
<br />Insurance
<br />$589,854
<br />$10,000
<br />Electricity
<br />$6,193,471
<br />$105,000
<br />Equipment Repair
<br />$9,732,597
<br />$165,000
<br />Total 50 Year Life Cycle Cost
<br />$75,440,000
<br />Alternative Evaluation & Recommendation
<br />The two options for removing manganese from Ramsey's drinking water that have been
<br />evaluated include gravity filters and pressure filters.
<br />The capital cost of the pressure filter treatment plant is slightly less than the gravity filter
<br />treatment plant ($30.8 million versus $32.4 million). However, the life cycle cost of the pressure
<br />filter treatment plant is more than the gravity filter treatment plant ($75.4 million versus $71.9
<br />million). The pressure filter treatment plant has a higher life cycle cost due to the expense of
<br />painting and maintaining the steel filters; whereas concrete gravity filters require very little
<br />maintenance.
<br />FEASIBILITY STUDY RAMSY 154354
<br />Page 41
<br />
|