WTP SCADA and Filter Control System Improvements

Open State & local contract opportunity Posted

Solicitation number
PE-62250-NONST-2027-000000016
State
Georgia
Responses due

Opportunity facts

Jurisdiction
UNSPSC codes
Show all 41
Point of contact

Opportunity details come from ssl.doas.state.ga.us. Updated .

About this opportunity

Written by GovTribe AI ·

The City of Carrollton, Georgia is soliciting proposals for SCADA and filter control system improvements at its Water Treatment Plant, with a pre-bid conference on November 17, 2026 and sealed proposals due December 3, 2026 at 2:00 p.m. The solicitation identifies no set-asides.

The scope replaces the plant's DeviceNet-based valve control system, which operates 61 valves across ten conventional filters, with conventional discrete and analog wiring. Each filter receives a dedicated Allen-Bradley PLC and touchscreen capable of standalone control without the supervisory ControlLogix PLCs. The integrator also replaces the existing SCADA system with new HMI software and computer hardware. Proposals must include all equipment, materials, labor, installation, applicable taxes, fees, and freight to Carrollton, Georgia.

The successful bidder must furnish a performance bond and a payment bond, each at 100 percent of the bid. The City reserves the right to reject any contractor without previous experience with projects of similar nature and complexity. Proposals are submitted in triplicate in sealed envelopes to Carrollton City Hall, 315 Bradley Street, and must be obtained through Dalton Appleby at dappleby@carrollton-ga.gov or 770-830-2000 to be considered valid. The pre-bid conference is held at the Carrollton Water Plant, 1007 N Park Street.

Evaluation weights are: proposed pricing, 45 points; locality, service, and availability together with previous experience with specified equipment and warranty, 25 points; qualifications, experience, and stability of the project team, 10 points; technical merits of the proposal, 10 points; and delivery and installation schedule, 10 points.

Opportunity text

This request is for a proposal to furnish all equipment, materials, and installation services to perform all services necessary for control and monitoring system improvements complete with all appurtenances and accessories to be installed at the City of Carrollton Water Treatment Plant. Currently the City¿s Water Plant operates ten conventional filters. Each filter has six individual valves; left influent, right influent, effluent, drain, wash and rewash, and a shared backwash valve for a total of 61 valves. These valves are controlled using a DeviceNet communication network and two Allen-Bradley ControlLogix PLCs with Panelview touchscreens. DeviceNet is no longer a widely used communication network and has proven more and more difficult for the city to support and maintain throughout the years. The purpose of this project is to abandon the existing DeviceNet based valve control system in lieu of simpler valve controls utilizing conventional discrete and analog wiring. Furthermore, it is the design intent that each filter will be capable of standalone control without the need of the Supervisory ControlLogix PLCs. Each filter will have its own dedicated Allen-Bradley PLC and touchscreen. Additionally, the integrator will replace the plant¿s existing SCADA system with new HMI software and computer hardware. Proposals shall include all materials, labor, applicable taxes and fees including freight to Carrollton, Georgia.

Files

File Type Posted
Bid Advertisement _ WTP SCADA and Filter Cont.pdf PDF

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