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CONSULTANT will compile review findings, alternatives suggested, and a workshop summary into Draft Module 4: Drinking Water Supply and Treatment Alternatives. This module will contain: Descriptions of alternatives presented with pros and cons of each. Comparison of costs, operations and maintenance demands, and layouts for each alternative. • A review of the MCDA exercise and the selected alternative. CONSULTANT will provide Module 4 as a draft only as part of this task. COUNTY review comments will be tracked in an Excel spreadsheet and incorporated into the Pre - Final and Final versions of the IWMP to be compiled in Task 7.4. 5.4 Drinking Water Distribution Alternatives Development 5.4.1 Drinking Water Distribution Alternatives Development CONSULTANT will investigate alternatives for improvements to the COUNTY's potable water distribution system with regards to the following: • Asset risk • Hydraulics and system pressures • Expansion and capacity improvements • Water age and maintenance of water quality CONSULTANT will evaluate alternatives for areas with potential for improvements based on the results of the potable water hydraulic model (Task 3.3) and interviews with COUNTY staff. CONSULTANT will size piping, pumping, and storage alternatives based on the 50 -year growth horizon as well as any areas where future expansion is planned. CONSULTANT will develop high-level project descriptions, site layouts, Class V cost estimates, and life cycle cost analyses for each alternative. 5.4.2 Drinking Water Distribution Alternatives Workshop (4 hours, in-person) CONSULTANT will facilitate a four-hour in-person workshop to discuss review findings and alternatives developed for drinking water distribution. CONSULTANT and COUNTY will review the high-level alternative descriptions, layouts, and cost estimates developed by the CONSULTANT. Workshop will include a collaborative MCDA exercise in which the CONSULTANT and the COUNTY will develop evaluation criteria, weight evaluation criteria, use these criteria to determine the most favorable alternative to be further developed. 5.4.3 Draft IWMP Module 5: Drinking Water Distribution Alternatives CONSULTANT will compile review findings, alternatives suggested, and a workshop summary into Draft Module 5: Drinking Water Distribution Alternatives. This module will contain: Descriptions of alternatives presented with pros and cons of each. Comparison of costs, operations and maintenance demands, and layouts for each alternative. • A review of the MCDA exercise and the selected alternative. 18