Sewer Improvements_Capital Program Request Sheet_FY24 CIP — File 23-1239

Project Title: Project Address: Department: Project Mgr.: Email: New Project or Modification: Department Priority: Rank your project(s) in order of priority from your point of view. If you propose four projects, rank them 1, 2, 3, 4, with 1 being the highest, and so forth. Project Description/Scope of Work: Justification: Relationship to Other Projects: Category: Please check all appropriate boxes Architectural/Engineering Feasibility Study Architectural/Engineering Construction Document Services & Construction Admin Building Alteration/Repair/Renovation/Addition/New Construction Building Improvements (non-construction) Purchase of Equipment (incl. vehicles, office equipment, hardware, etc.) Information Technology Systems/Platforms (e.g. cloud based, internet based, etc.) Street/Sidewalk/Monument Improvements Water Improvements Sewer Improvements Land Development Land Acquisition Land Disposition Parks and Open Space Other Operational Impact: What impact will this project have on operational costs? Reduce Cost (greater than 5%) Reduce Cost (less than 5%) Cost Unchanged Increase Cost (less than 5%) Increase Cost (greater than 5%) West Somerville, various locations FORM A ‐ DESIGN & CONSTRUCTION CAPITAL IMROVEMENT PROJECT (CIP) REQUEST ‐ FY24 Gina Cortese gcortese@somervillema.gov There are no additional operational costs associated with this work. FY24 Sewer Improvements During the CCTV Inspection under Sewer System Evaluation Study (SSES) Project, critical defects to the system have been identified. These defects necessitate rehabilitations to ensure continuing system function and integrity of the overlaying roadways. Rehabilitations to the existing system will alleviate the need for costly emergency work when failures inevitably occur in the system. The FY24 Sewer Improvements will be a design and construction project. The rehabilitations proposed will include trenchless and excavated repairs to the sewer system, as well as green stormwater infrastructure (GSI). These rehabilitations will be designed based on information gathered in the ongoing CCTV Inspection under Sewer System Evaluation Study (SSES) Project. Project will also include green stormwater infrastructure (GSI) design and construction improvements. IAM - Engineering The FY24 Sewer Improvements relate to the ongoing CCTV Inspection under Sewer System Evaluation Study (SSES) Project. This work aligns with the long term goal to evaluate and rehabilitate the entire existing sewer system, city-wide. Sewer rehabilitations further support our department’s goal of reducing Infiltration and Inflow (I/I) to our sewer system as I/I results in additional operational costs as water handling fees paid to MWRA. Necessary New Project First

Design and Construction Project Funding Total Estimated Cost Prior Years Funding FY 24 FY25 FY 26 FY 27 FY 28 Capital Costs: Feasibility Study $ - Land Acquisition/Appraisal $ - - - - - - - Environmental Remediation/LSP $ - Demolition & Site Clearance $ - - - - - - - Owner's Proj. Mgr./Clerk of the Works $ - Designer Services (SD through CA) $ 740,000 450,000 290,000 Construction $ 3,200,000 - 500,000 2,700,000 - - Insurance (builder's risk, addtl. Polices) $ - - - - - Furniture & Equipment (FFE) $ - Police Details $ 100,000 - 33,000 67,000 - - Contingency $ 529,990 250,000 279,990 Other (Specify) $ - - - - - - - Other (Specify) $ - - - - - - - Total: $ 4,569,990 $ ‐ $ 1,233,000 $ 3,336,990 $ ‐ $ ‐ $ ‐ Please provide suggested sources. This section will be finalized jointly by Finance and the Department. Funding Sources: Prior Years Funding FY 24 FY25 FY 26 FY 27 FY 28 Stabilization Fund $ - $ - $ - $ - $ - $ - $ - GO Bonds $ 4,269,990 - 933,000 3,336,990 - - - Retained Earnings $ - General Fund $ - Special Assmnt. $ - - - - - - - Ch. 90 $ - Grants $ 225,000 - 225,000 - - - - Receipts Reserved $ - Other (Specify) MWRA I/I Loan $ 75,000 - 75,000 - - - - Other (Specify) $ - - - - - - - Total: $ 4,569,990 $ ‐ $ 1,233,000 $ 3,336,990 $ ‐ $ ‐ $ ‐ Evaluation Committee Use Only: Reviewed and Approved By: Version Requesting Department Date Draft Auditing Date Revised Purchasing Date Accepted Final Approval The cost estimate is based on a preliminary plan to address the most critical pipes in the study area of the CCTV project within a single construction season (calendar year 2023). Due to the abundance of critical defects in the system, the cost estimate contained herein is not intended to fix all sewer system defects in the study area, rather addressing the most critical defects encountered. Sewer bond will be supplemented by $330,000 MWRA I/I funds from Phases 9 through 11. I/I program consists of 75% grant and 25% 10-year 0% interest loans. MWRA I/I loan schedule submitted as separate CIP request.