Chattahoochee Water Treatment Plant SCADA Improvements

The City of Atlanta is soliciting qualified firms to perform SCADA system upgrades and modernization at the Chattahoochee Water Treatment Plant under a two-phase competitive sealed bid process, with Phase I (Prequalification) due October 14, 2026 at 2:00 PM EST and Phase II (IFB) closing November 5, 2026 at 2:00 PM EST. The City has established a 30% Small Business Opportunity (SBO) participation goal for Small Business Enterprises and requires offerors to form joint ventures meeting diversity program requirements.

The scope encompasses replacement of obsolete ControlLogix PLCs and related hardware (Remote I/O systems, PanelView OITs, Flex I/O components) with new 5580 series PLCs, Flex 5000 I/O, and updated communication modules; removal of legacy ControlNet cabling and replacement with Ethernet/IP networks using device-level rings, multimode fiber, and updated Cisco industrial switches; migration of the existing iFix SCADA HMI system to AVEVA System Platform with updated screens and configurations; full factory acceptance testing and onsite commissioning with operational testing; personnel training; and delivery of comprehensive documentation including panel drawings, network diagrams, O&M manuals, hardware specifications, and final reports.

Prequalification requires minimum five years of experience completing similar end-to-end integration projects with at least five comparable contracts in the past five years; ten years in business; a project manager with seven years in industrial controls and two years in SCADA upgrade leadership; a lead programmer/controls engineer with seven years in ControlLogix PLC programming and AVEVA or equivalent HMI development experience; and satisfactory performance on at least three prior Allen-Bradley ControlLogix PLC and SCADA upgrades at water/wastewater treatment facilities within the past five years with three verifiable references. Offerors must provide financial capability attestation, insurability letter, and Workers' Compensation (statutory), Commercial General Liability ($1,000,000 per occurrence/$2,000,000 aggregate), Commercial Automobile Liability ($1,000,000 combined single limit), Builders Risk/Installation Floater (100% of contract value), and Technology Errors & Omissions/Professional Liability ($1,000,000 per claim/$2,000,000 aggregate) coverage. Questions for Phase II are due October 28, 2026. Award shall be made to the most responsible and responsive offeror. Execution of the City's standard contract is required within five business days of award notification.