UNSPSC 32152001: Distributed control packaged system DCS

A process control system that uses a network to interconnect sensors, controllers, operator terminals and actuators. Generally very large and costly, a DCS typically contains several computers at multiple locations for control and uses proprietary interconnections.

UNSPSC 32152001 Distributed control packaged system DCS is a Commodity code capturing supervisory control and data acquisition (SCADA) system upgrades and modernization projects that state and local governments purchase to replace or refurbish distributed control system infrastructure at water treatment plants, wastewater facilities, and utility operations. Recent solicitations show cities and water authorities procuring complete SCADA system replacements including programmable logic controllers (PLCs), human-machine interface (HMI) systems, network architecture upgrades, installation labor, Factory Acceptance Testing, operational training, and as-built documentation. The issuing bodies are primarily municipal water and wastewater agencies and special-purpose water districts; cities (Atlanta, Santa Fe), municipal water districts (Eastern Municipal Water District), and water-dependent public authorities (Buckman Direct Diversion) solicit under this code when upgrading control systems critical to daily operations.

Recent activity concentrates in the Southeast and Southwest. The City of Atlanta Department of Watershed Management issued back-to-back pre-advertisement notices on May 8, 2026 for SCADA improvements at the Hemphill Water Treatment Plant (Solicitation PE66062NONST2026000000376, due May 29, 2026) and Chattahoochee Water Treatment Plant (Solicitation PE66062NONST2026000000374, due May 29, 2026), both seeking firms with five years of experience in comparable end-to-end integration projects, demonstrable expertise with Allen-Bradley ControlLogix PLCs and AVEVA HMI systems, and successful prior water treatment facility upgrades. The City of Santa Fe issued RFP FY26-RFP-036 on February 9, 2026 (due January 9, 2026, though this appears to be a posting date discrepancy) to replace four critical PLCs using Schneider Electric Unity Pro XL software across the Buckman Direct Diversion water system. Project scopes typically span 360 days from Notice to Proceed, require Factory Acceptance Testing with four days of on-site validation and five consecutive days of operational testing, and mandate comprehensive operator training and documentation. Vendors must clear background checks, demonstrate on-time performance on prior similar contracts, and supply dedicated project managers and controls engineers with specific years of experience in industrial controls and SCADA upgrades.