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5.6.3 Draft IWMP Module 6: Collection System Alternatives CONSULTANT will compile review findings, alternatives suggested, and a workshop summary into Draft Module 6: Collection System 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 6 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. 5.7 Wastewater Treatment and Effluent Management Alternatives Development 5.7.1 Wastewater Treatment & Effluent Management Alternatives Development CONSULTANT will investigate alternatives for wastewater treatment and effluent management. CONSULTANT will develop up to three process improvements at each plant to achieve AWT compliance. Supplemental modeling in Biowin, CONSULTANT's VisualSpace software, and Visual Hydraulics will be performed as needed to support alternative development. CONSULTANT will investigate alternatives for effluent management including the following: • Non -potable reuse system expansion • Natural treatment solutions • Underground injection expansion CONSULTANT will also investigate alternatives for improvements to biosolids treatment and management, including consideration of centrate treatment. CONSULTANT will size basins and major process equipment for the appropriate growth horizon (20 -year for process equipment; 50 -year for basins, tanks, and buildings). CONSULTANT will develop high-level project descriptions, site layouts, Class V cost estimates, and life cycle cost analyses for each alternative. 5.7.2 Wastewater Treatment & Effluent Management Alternatives Workshop (4 hours, in-person) CONSULTANT will facilitate a four-hour in-person workshop to discuss review findings and alternatives developed for wastewater treatment and effluent management alternatives. CONSULTANT and COUNTY will review the high-level alternative descriptions, layouts, and Class V 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. 5.7.3 Draft IWMP Module 7: Wastewater Treatment & Effluent Management Alternatives 20