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EXHIBIT A-1 <br /> CITY OF DECATUR - PUBLIC WORKS DEPARTMENT <br /> SANITARY SEWER SYSTEM REHABILITATION FOR <br /> LOST BRIDGE NORTH (TA_3N) & FLORIAN (TA_6) BASINS <br /> SCOPE OF DESIGN PHASE SERVICES <br /> • Repairing tap break-ins <br /> • Repairing defective or broken taps <br /> • Removing bends and repairing laterals to facilitate lateral lining <br /> • Rehabilitate 100% of laterals <br /> Manhole Work Includes: <br /> • Removing and replacing frames and lids <br /> • Removing and resetting frames and chimney risers <br /> • Rehabilitate and replace failing manholes <br /> • Raise select manhole frames and lids <br /> • Install manhole liner <br /> PROFESSIONAL ENGINEERING DESIGN PHASE SERVICES <br /> The following tasks will be performed to prepare the aforementioned deliverables for <br /> both basins. COD agrees to provide recent (within one year) sewer main inspection <br /> data to the engineer. <br /> Task 1: Sewer Main and Manhole Repair and Replacement <br /> 1. Review details of prior inspection reports, sewer alignments and manhole <br /> locations with City staff to determine desired approach and preferred products. <br /> 2. Perform detailed topographic field surveys of the sewer segments planned to be <br /> replaced. <br /> 3. Generate topographic mapping of the sewer alignments. <br /> 4. Prepare sewer replacement plan and profiles. <br /> 5. Prepare legal descriptions for temporary construction easements associated with <br /> the proposed sewer replacements (5 estimated). <br /> 6. Finalize the sewer plan and profile(s) upon obtaining feedback from City staff. <br /> 7. Finalize design plans and details to support the bidding documents. <br /> 8. Prepare technical specifications. <br /> 9. Calculate plan quantities and prepare opinions of probable construction cost to <br /> compare to the project budgets. <br /> Task 2: Cured-in-Place-Pipe and Cured-in-Place-Manhole Liner <br /> 1. Review specific sewer main, manhole and sewer lateral rehabilitation options and <br /> vendors with City staff to determine desired repair and rehabilitation approaches. <br /> 2. Perform preliminary design necessary for CIPP and CIPM . <br /> 24006892.01 A-1-4 02/19/2026 <br />