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Alternative Alternative 1 Alternative 2 <br />Facility TURNOUT 8 TURNOUT 8 TENNIS HANSEN <br />Treatment Fluoridation Fluoridation Fluoridation and Chloramination Fluoridation and Chloramination <br />Maximum Design Flow GPM 7000 7000 2500 2500 <br />Average Annual Production AFY 3500 3500 1750 1750 <br />DIRECT COST Cost Factor <br />(if applicable) <br />Building 62,000$ 62,000$ 252,000$ 252,000$ <br />Process Equipment 144,000$ 144,000$ 389,000$ 389,000$ <br />Electrical and I&C (applied to process equipment costs) 10.00% 15,000$ 15,000$ 39,000$ 39,000$ <br />Total Direct Cost 221,000$ 221,000$ 680,000$ 680,000$ <br />O&M COSTS Cost Factor <br />(if applicable) <br />Annual O&M Costs (applied to process equipment costs)2.00%2,880$ 2,880$ 7,780$ 7,780$ <br />Annual Chemical Costs 13,200$ 13,200$ 42,750$ 42,750$ <br />Present Value of Equipment Replacement cost after 20 years 144,000$ 144,000$ 389,000$ 389,000$ <br />Notes: <br />Alternative 3 <br />1. Building costs assume a CMU building with an approximate cost of $300/SQFT. <br />2. The fluoridation building for Turnout 8 is assumed to be of a similar size to the fluoridation building currently located at Turnout 5. <br />3. Annual chemical costs are calculated based on the average annual production for each facility. <br />4. Direct costs are calculated based on the maximum design flow for each facility. <br />5. The costs per gallon of each chemical are consistent with the Regional Groundwater Facilities Feasibility Study prepared by LSCE (2025). <br />6. The chemical solutions and dosage amounts are consistent with design criteria used in the Regional Groundwater Facilities Feasibility Study prepared by LSCE (2025). <br />Pleasanton GW Supply Alternatives Study <br /> Project Alternatives Estimated Flouridation and Chloramination Costs (Class 5) <br />Page 1 of 2 3/30/2026