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Home My WebLink About2025 03 13 City Commission Workshop PresentationSpecial Workshop March 13, 2025 City of Winter Springs Update to Design + Construction Services for the East & West WRFs C A R O L L O / 2 •Introductions •City of Winter Springs •Clete Saunier, Utilities Director, City of Winter Springs •Carollo (Engineer) •Scott Richards, P.E., Project Director •Meera McKie, P.E., Project Engineer •Wharton-Smith (Contractor/CMAR) •Erik Anderson, P.E., CMAR Project Manager Introductions C A R O L L O / 3 •Meeting Goal & Intent – WRF Design & Construction updates •Separate workshops will be held for overall utility/project updates for wastewater, reclaimed water, & potable water •There will be a Q&A session at the end of this presentation (lots of time will be held for Q&A) – please hold questions until then •There is an open RFQ for the City’s Operation & Maintenance contract (to operate the water and wastewater facilities). In compliance with Florida’s procurement rules, we are under a strict “cone of silence” (found in section 287.057(25), Florida Statutes) and are prohibited from engaging in discussions surrounding the RFQ and Operations procurement. Meeting Goals & Intent C A R O L L O / 4 updatefooter0323.pptx/4updatefooter0323.pptx/4Agenda •Existing Facilities •Condition •Completed Repairs •Planning for New Facilities •Iron Bridge •East & West WRF’s •Funding •Design •CMAR •Estimated Lookahead Schedule C A R O L L O / 5 Existing Facilities East WRF West WRF C A R O L L O / 6 •East & West WRFs •Outdated, used steel-ring package plants installed in the late 1970/80’s •Surpassed the end of their useful life by at least a decade – failing infrastructure, highly- corroded tank walls, antiquated design, etc. •Existing facilities include a single-train process •One disruption impacts the entire treatment process •Require both replacement & modernization •New facilities are designed for flexibility, reliability, and treatment effectiveness •Facilities will have multiple trains in parallel – allows for minimal process impact while service occurs Existing Facilities C A R O L L O / 7 •Priority Repairs (2019-2022) •Near-term repairs to keep facilities in operation until replaced •Included: •Replacement of static screens + installation of additional filters, •Clarifier wall and structural repairs within the basins, •Replacement of aerators and diffusers, •Air piping replacements, •Pipe support repairs, •Walkway and bridge repairs, and •Miscellaneous steel tank and wall repairs. •Additional structural repairs (tank welding, etc.) completed since then, in addition to ongoing, continued maintenance Existing Facilities C A R O L L O / 8 History/Consideration of Iron Bridge •CPH Master Plan (2019) •Evaluated replacement of existing East & West WRFs (construction of new facilities) vs. transporting all sewage to Iron Bridge Regional Facility •The recommendation was to improve/replace the existing WRFs •A review of the Iron Bridge Concept - What would it require to connect to Iron Bridge? 1)Get wastewater there (pump/pipe system there) 2)Treat wastewater (treatment capacity) 3)Get reclaimed water back (pump/pipe system back) Planning for New Facilities C A R O L L O / 9 Requirement #1– Get wastewater there •Transmission to Iron Bridge (pump stations and pipeline) •Option A - Pump to SSNOCWTA System •Requires building pump stations & associated piping from each WRF to transmit wastewater flow •Connect to existing pressurized force main (serves multiple existing member utilities) •~34 existing lift stations (from other utilities) tie into SSNOCWTA •The SSNOCWTA system does not have existing hydraulic capacity •High amounts of inflow/infiltration often cause an exceedance of allotted capacity for existing Members •Additional flow will result in many of the existing stations further struggling, or failing, to keep up in peak conditions •Winter Springs cannot tie directly into SSNOCWTA without significant improvements to the SNNOCWTA system •City is not a member of SSNOCWTA •Option B – Pump directly to Iron Bridge •Requires building pump stations & associated piping from each WRF to transmit wastewater flow •Approximately 15 miles of piping required from Winter Springs to Iron Bridge •Pipe route through multiple communities/jurisdictions outside of Winter Springs Planning for New Facilities C A R O L L O / 1 0 Requirement #2 – Treat wastewater •Treatment at Iron Bridge •Need Treatment Capacity at Iron Bridge •City of Orlando is the primary owner and controlling member of Iron Bridge •Winter Springs does not own capacity at Iron Bridge •Requires purchase ~3 MGD capacity •Iron Bridge has no for-sale capacity •Capacity could be purchased from an existing Member, but allotted capacities for each Member cannot be shared •Annual Treatment cost / Capital Improvements •Annual cost to treat (per 1,000 gallons of flow) •Member commitment to all future capital improvements as determined by Iron Bridge •Legal / Agreement •New agreements would need to be drafted and presented to State Legislature Planning for New Facilities C A R O L L O / 1 1 Requirement #3 – Get reclaimed water back •Reclaim water source from Iron Bridge •Transmission piping and pumping required from Iron Bridge to City system •Need to pump back to City – maintain the ability to meet peak demands for irrigation •Regional transmission system does not exist nearby – anticipate 12-15 miles of reclaimed piping •Reclaimed water is crucial to Winter Springs to offset potable use for irrigation and reduce the City’s potable water use Planning for New Facilities C A R O L L O / 1 2 •Schedule – •Iron Bridge will have to determine capacity limitations to ensure it can handle additional flows •Interlocal agreements will need to be created with Iron Bridge and/or other supporting Utilities •Permitting will include, but may not be limited, to the following: •FDEP •FDOT •County •City of Oviedo •Design & Construction schedule (estimated 8-10 years) •Capacity Analysis and Agreement Development •Route Study •Preliminary Design & Hydraulic Modeling of System •Survey and Geotechnical Services •Design Services •Permitting/ROW •Bidding and Construction Planning for New Facilities C A R O L L O / 1 3 •Long-term consideration of upgrading WRFs vs. rerouting to Iron Bridge •Rerouting to Iron Bridge: •Reduces the wastewater treatment effort and reduces WW facility operations •Increases maintenance along the wastewater transmission system and new pump stations (outside City limits) •Managing pipelines outside of jurisdiction •Potential additional impact of pipelines (major highways, project corridors, etc.) •Subject to relocation of pipelines due to other projects (FDOT, County) •Continued operation and maintenance of pump stations and pipelines (single critical main) •Continued operation of City reclaimed system •Member commitment to all future capital improvements as determined by Iron Bridge •Subject to Iron Bridge treatment rates and any increase in rates •Subject to Capital Improvement contribution to Iron Bridge •Cost •Pipelines/Pump Stations + Purchase capacity to Iron Bridge is estimated to be twice the cost of upgrading WRF’s. Planning for New Facilities C A R O L L O / 1 4 East & West WRF Construction •Kimley-Horn Master Plan (2021-2022) •Evaluated and addressed overall wastewater system and corresponding funding planning while also analyzing the need for new WRFs •Carollo completed the Conceptual Designs for the East & West WRFs (2021-2022) •This was done to… •Provide an equal and comprehensive analysis of all available advanced treatment-capable technologies, •Develop the treatment alternatives required to apply for funding and permitting, and •To establish planning-level budgets to be built into the City’s rate structure. Planning for New Facilities C A R O L L O |1 5 Progress of New Facilities 20252024202320222021 43214321432143214321 Wastewater Master Plan Conceptual Design Reports Revenue Sufficiency Analysis City RFQ for WRF Design East WRF Design and Permitting Commission approves Resolution 2022-08 to adopt Master PlanSRF design loan application submitted Commission approves Resolution 2022-09 &2022-10: East & West WRF CDRs Ordinance 2023-13Final Adoption of Ordinance 2023-13: Amending Water, Wastewater, Reclaimed and Water Rates, Fees & Charges Agenda item 500 on 12/11/23(East and West Treatment Facilities Design and Construction Services) CMAR Procurement Agenda Item 300 Submission of East PDR Submission of FDEP Permit Application C A R O L L O / 1 6 •Funding •Project anticipated to be primarily funded by SRF with interim gap funding as needed (project team is evaluating additional grant funding opportunities) •Design Loan funding was secured •Clean Water SRF & ARPA •Next step: Construction Loan application (SRF) •Submittal date: June 2025 •Requires: •SRF loan application – in process •Design plans and specifications – in process •FDEP permit – permit application has been filed •Draft guaranteed maximum price (GMP) –in process with CMAR Project Funding C A R O L L O / 1 7 •Design •Currently focused on the East WRF; West WRF is to-follow •Preliminary Engineering & Design for the East WRF (to apply for permit application) has been completed •Included: •Site inspections & data gathering, •Site/civil evaluations, •Process calculations •Hydraulic profile calculations, •Sizing of basins and site layout, •Geotechnical investigations, •Environmental evaluation (wetlands – minimize impacts), •Survey, •Preliminary electrical and architectural analysis, •Permitting, etc. Design C A R O L L O / 1 8 updatefooter0323.pptx/18updatefooter0323.pptx/18 C A R O L L O / 1 9 updatefooter0323.pptx/19updatefooter0323.pptx/19Present - Future - To Remain - C A R O L L O / 2 0 updatefooter0323.pptx/20updatefooter0323.pptx/20Present - Future - To Remain - C A R O L L O / 2 1 updatefooter0323.pptx/21updatefooter0323.pptx/21Present - Future - To Remain - C A R O L L O / 2 2 •CMAR has been selected •Wharton-Smith •Construction schedule is highly driven by, and contingent upon… •Funding – SRF loan disbursements •$20 million/year •Permitting •Material/equipment procurement (lead times) CMAR C A R O L L O / 2 3 updatefooter0323.pptx/23updatefooter0323.pptx/23CMAR BASICS (Construction Manager at Risk) •The City still has Two Contracts •Engineer •Contractor (CMAR) Strong Allegiance to Owner •The City still controls the design •Qualifications based selection of GC (CMAR) •F.S. 255.103 (CMAR) •F.S. 287.055 (CCNA) •Allowed by all Florida Funding Sources (SRF, CDBG, FDEP, WMD, ARPA) Owner Engineer/ Architect CMAR (Contractor) Subcontractors C A R O L L O / 2 4 updatefooter0323.pptx/24updatefooter0323.pptx/24CMAR VS. DESIGN-BID-BUILD •CMAR »Contractor involvement at early design »Final Design Incorporates Contractor Constructability Input »Contractor Estimates allow design to be adjusted to meet budget »Complete cost transparency »MOPO (Maintenance of Plant Operations) »Identify long-lead procurement to condense the on-site project schedule •Design-Bid-Build (Traditional Hard Bid) »Contractor doesn’t get involved until 100% design »Contractor pricing is only available on bid day »Typically bid day price is the “starting price” »Single line-item price 24 C A R O L L O / 2 5 updatefooter0323.pptx/25updatefooter0323.pptx/25SCHEDULE Saves time over traditional Design-Bid-Build (Example) Delivery ScheduleReduces Cost •Engineer & Owner Construction Administration Costs •Operational Costs •Construction General Conditions C A R O L L O / 2 6 updatefooter0323.pptx/26updatefooter0323.pptx/26GUARANTEED MAXIMUM PRICE •Subcontractors and Supplier Bids •Competitively bid •Thoroughly vetted before award •Schedules and value engineering ideas •General Conditions •Management Staff •Construction Facilities •Builder’s Risk Insurance •Bonds & Insurance •CMAR Fee •Contingency –Risk Register C A R O L L O |2 7 East WRF Lookahead Schedule 2028202720262025 4321432143214321 SRF Funding Application and Approval Finalization of Design and GMP East WRF Material and Equipment Procurement East WRF Construction Submission of SRF Construction Application to FDEP. SRF Construction Funding Approval. C A R O L L O |2 8 Future / Lookahead Schedule 20292028202720262025 43214321432143214321 SRF Funding Application and Approval Finalization of Design and GMP East WRF Material and Equipment Procurement East WRF Construction West WRF Design, Permitting & Material Procurement West WRF Construction Submission of SRF Construction Application to FDEP. SRF Construction Funding Approval. SRF Construction Funding Approval. Submission of SRF Construction Application to FDEP. C A R O L L O . C O M Thank You! C A R O L L O / 3 0 updatefooter0323.pptx/30updatefooter0323.pptx/30Present - Future - To Remain -