SSM City CWSRF Project - Infrastructure Improvement Plan
This project aims to enhance aging infrastructure, comply with NPDES permits, improve water treatment processes, increase capacity, and close known CSOs. It includes various upgrades like pump replacements, electrical improvements, and secondary treatment enhancements.
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Presentation Transcript
Milestone Date Due AOL CWSRF Program Requested $35 Million RFQ for Engineering/ Construction Services Posted 9/22/23 City of SSM EGLE Public Hearing Regarding Intended Use Plan 9/12/23 EGLE Awarded Review and Determine Project and Funding Scope Commission Award for Engineering/ Construction Services 10/16/23 City of SSM $17.5 Million Grant $17.5 Million Loan at 2% Interest Rate Project Start 10/17/23 Consultant Draft Plans and Specs to EGLE (60% Deliverable) 1/7/24 Consultant Interest Only Payments Final Plans and Specs to EGLE (100% Deliverable) 4/13/24 Consultant Start 1 year after Loan Closing (2025) Engineer Authorization Published 4/24/24 EGLE Part I and Part II Application Due 5/15/24 City of SSM FNSI Clearance Plans and Specs Approved 5/24/24 EGLE Full Payments Start at Completion of Project (approximately 2026) Bid Ad Published No Later Than 5/24/24 City of SSM Commission Determination on Bid Award 7/01/24 City of SSM Part III Application Due/Bid Data Submittal 7/08/24 City of SSM Plan is to Replace Debt as Existing Debt Retires or Falls Off EGLE Order of Approval Issued 8/07/24 EGLE Borrowers Pre-Closing with the MFA 8/21/24 EGLE MFA Closing 8/28/24 Notice To Proceed Issued No Later Than 10/27/24 EGLE
CWSRF Project Planning Document Project Goals Improve existing aging infrastructure (60+ years in service) Work toward compliance with current 5 Work toward compliance with current 5- -year NPDES permit year NPDES permit Improve the reliability of WWTP and collection processes to meet regulatory requirements (elimination of WWTP bypasses and CSOs) Increase unit process capacity to address current and future needs Repair existing collection system to limit stormwater infiltration into the sanitary collection system and close the last 2 known CSOs. Peck and Eureka & Water Street | 2 |
Name Description Preliminary Treatment Five screw pump rehabilitations Influent screens Gates and valves Influent grit removal Scum removal Structure and other related improvements to accommodate processes NFPA compliance Secondary clarifier mechanism replacements RBC replacements (shafts, media, blowers, etc.) Pumps and systems NFPA compliance New disinfection system Remove gaseous chlorine disinfection Site electrical improvements New electrical distribution Site I&C communications and control distribution Building structural repairs (doors, brick improvements, etc.) NFPA compliance (not covered in individual projects) CWSRF Project Planning Document Selected WWTP Projects Secondary Treatment Improvements Disinfection System Electrical, I&C and Site Improvements Biosolids Handling Replace two BFPs with a single BFP Polymer makeup system Scum processing system improvements Pump system replacement Replace/rehabilitate covers Improve mixing Improve digester feed and withdrawal Improve heating and gas safety and utilization Anaerobic Digester | 3 |
Name Description Initial Cost $5,180,000 Peck and Meridian Replace 3000 linear feet of 24-inch sanitary sewer pipe and increase the size of the stormwater pipe. This project will close sanitary sewer connections with the storm sewer. CWSRF Project Planning Document Selected Collection System Projects Power Canal 5000 linear feet of 24-inch Main sewer through town that services the west side of town is in rough shape. Dates to 1950's has had numerous collapses and large flows. Potential to add overflow storage to alleviate SSO's and burden on WWTP. Address sanitary sewer capacity issues in the area and reduce known inflow and infiltration. $975,000 I-500 Raceway Sewer Replace 500 linear feet of 12-inch sanitary sewer from I-500 track to Blair Hastings Trailer park. Project addresses sanitary sewer collapse and reduces known sources of inflow and infiltration. $790,000 McCandless / Ravine Street Replace 550 linear feet of 15-inch sanitary sewer pipe. This project connects previous projects to the East and West and addresses known capacity and inflow and infiltration issues. $830,000 6th and 20th Avenue / St. John Replace 850 linear feet of 12-inch sanitary sewer. $831,000 Stormwater Catch Basin Separations The proposed catch basin separations are at Magazine/Spruce, Gros Cap Avenue and Seymour. $572,000 Collection System Modeling Following improvements, the City is planning additional collection system flow monitoring and modeling of the collection system to consider the impact of the modifications and the potential for additional needs to support PPC. $300,000 | 4 |
Impact to Rates The project is to be funded by an EGLE grant of $17.5M and equal loan at an advantageous rate of 2%. This funding opportunity, using ARPA dollars, is unlikely to be available in the future. Without it, the project would be delayed, and a significantly larger amount funded by customers. Water and sewer rates have always been a primary consideration when taking on new debt. Debt is an effective way to spread costs of improvements over time and repayment schedules are designed to level out rate increases. We ll see the first significant reduction in current annual debt service of 26% in 2025, when it goes from $2.8M to $2.1M. In 2031, it drops to $1.4M. By 2033, it's down to $853,400. Projections anticipate average rate increases of 2.3% per year to adequately fund operations and debt service in this enterprise fund. These numbers include new debt added as needed for large projects. In 2017, new debt of $28M to fund an earlier version of this project was anticipated to start in 2020, adding $1.5M to debt service by 2024. The long-range forecast is updated each year during the budget process. | 5 |
