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Section 4: Preferred Alternative and Implementation Plan Water Supply Alternatives Study <br />4-5 <br />DRAFT for review purposes only. Use of contents on this sheet is subject to the limitations specified at the end of this document. <br />Water Supply Alternatives Study-Draft Report.docx <br /> <br />Figure 4-1. Draft timeline for implementing Alternative 3 (Two New Wells) <br />11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 <br />Predesign <br />Evaluate locations of City-only and co-located facilities <br />Drill exploratory/test wells <br />Zone 7 updated GW model and Well Siting Master Plan <br />Funding (grants and/or loans) <br />Design and Construction of Two Wells: Traditional (DBB) Approach <br />Engineer procurement (drilling/facility design)RFP Proposal <br />Permitting <br />NEPA/CEQA (as s umes IS/MND CEQA not requi red, bes t ca se s cena ri o for 12 mos .) <br />Permitting (i ncl udi ng: BAAQMD, PG&E, Zone 7, SWRCB) <br />Well drilling <br />Well drilling design <br />Well drilling contractor procurement (including RFP)Driller RFP Driller proposal < Driller RFP and proposal response, review, selection, and contract negotiations <br />Well drilling construction Well #1 Well #2 < Drilling two wells in series <br />Well facilities (equipping) <br />Well facility #1 design Well Facility #1 Design <br />Well facility #2 design Well Facility #2 Design <br />Well facility contractor procurement (including RFP)RFP Proposal < Contractor RFP and proposal response, review, selection, and contract negotiations <br />Well facility #1 construction and commissioning Well Facility #1 Equipping (Construction) <br />Well facility #2 construction and commissioning Well Facility #2 Equipping (Construction) <br />Design and Construction of Pipelines and Connecting Infrastructure: Traditional (DBB) approach <br />Engineer procurement RFP Proposal < Engineer procurement <br />Permitting <br />NEPA/CEQA <br />Utility investigations (potholing/geotech borings) <br />Design of pipelines and connecting infrastructure <br />Contractor procurement RFP Proposal < Contractor procurement <br />Construction of pipelines and connecting infrastructure <br />Finance <br />Total Project Cash Flow by FY ($M) <br />Project Elements <br />Year 2023 2024 2025 <br />$3M (up to $6M) <br />2027 2028 <br />Month <br />2026 <br />Early CEQA consultation for 2 well sites <br />$2M (up to $4M)$3M (up to $6M)$7M (up to $14M)$10M (up to $20) <br />Estimated at $23M (up to $46M) for design and construction. <br />Predesi gn <br />Procurement <br />Design <br />Constructi on/utility investigati ons <br />Legend