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13 <br />Table 12 — Capital Cost Opinion Summary <br />Gravity Filter Water Treatment Plant <br />Water Treatment Plant: <br />$25,650,000 <br />Construction Contingency (10%): <br />$2,565,000 <br />Preliminary Construction Cost: <br />$28,220,000 <br />Engineering/Construction Admin (12%) <br />$3,390,000 <br />Legal/Admin (1%) <br />$282,000 <br />Total Estimated Project Cost: <br />$31,890,000 <br />Table 13 — Capital Cost Opinion Summary <br />Pressure Filter Water Treatment Plant <br />Water Treatment Plant: <br />$24,362,000 <br />Construction Contingency (10%): <br />$2,436,000 <br />Preliminary Construction Cost: <br />$26,800,000 <br />Engineering/Construction Admin (12%) <br />$3,216,000 <br />Legal/Admin (1%) <br />$268,000 <br />Total Estimated Project Cost: <br />$30,280,000 <br />An optional 8,000 square foot garage could be added to either water treatment plant alternative <br />for a project cost of approximately $1.5 million. <br />Life Cycle Cost Opinions <br />Life cycle costs represent the total cost of owning the treatment plants for 50 years and include <br />capital cost, equipment replacement, labor, gas, chemicals, insurance, electricity, and annual <br />equipment repair. Detailed life cycle cost tables are included in Appendix K. <br />The life cycle costs presented in Table 14 and Table 15 assume a 20-year financing period on <br />the capital costs with 2% interest rates and 2.75% inflation. <br />Operating the water treatment plant is not anticipated to require additional Staff. While Staff will <br />need to visit the plant on a daily basis to operate and maintain it, this time will generally be offset <br />by the time Staff currently spends operating and maintaining the six municipal wells and three <br />pump houses within The COR. <br />FEASIBILITY STUDY - DRAFT RAMSY 154354 <br />Page 40 <br />