Water Infrastructure — Technology
SCADA System Replacement: Modernizing Utility Controls
A $500,000 Supervisory Control and Data Acquisition system replacement — funded through ARPA — upgraded Purcellville's real-time monitoring and control of water and sewer operations from aging legacy infrastructure to a modern platform.
What SCADA Is
Supervisory Control and Data Acquisition (SCADA) is the technology platform through which modern water and wastewater utilities monitor and control their physical infrastructure in real time. A SCADA system aggregates data from sensors distributed across the utility's infrastructure — pressure gauges, flow meters, level sensors, pump status indicators, valve positions, chemical dosing rates — and presents it to operators in a centralized dashboard. Operators can monitor conditions across the entire system from a single location and can issue remote commands to pumps, valves, and treatment processes without physically traveling to each site.
For a utility serving 9,000 residents, SCADA enables a small operations staff to maintain oversight of a geographically distributed system — pump stations, storage tanks, treatment facilities, and distribution network — with the reliability and response speed that modern water service requires. Without SCADA, operators must either physically inspect sites on a regular schedule or respond to problems only after they have manifested in service disruptions.
The Replacement Investment
Purcellville's SCADA system, like those of many small municipalities, had aged past its optimal performance window. Legacy SCADA systems present two categories of risk that were resolved by the ARPA-funded replacement:
Cybersecurity vulnerability
Older SCADA systems were designed before the cybersecurity threat landscape that now targets critical infrastructure became a primary concern. The U.S. EPA and DHS have issued repeated advisories about cyberattacks on water system SCADA — including actual incidents at small utilities. A modern SCADA platform with current security architecture and regular update support significantly reduces this risk.
Operational reliability
Legacy systems eventually reach end-of-life for vendor support, spare parts availability, and software compatibility. System failures on aging SCADA can leave operators without real-time monitoring during the exact periods — after-hours, during storms, during equipment failures — when it is most needed.
Data quality and integration
Modern SCADA platforms integrate with asset management, compliance reporting, and predictive maintenance systems in ways that legacy systems cannot. The data quality improvement alone has operational value: accurate, continuous flow and pressure data enables more precise treatment and distribution management.
Fraser's Technology Background
Fraser's 25-year career in telecommunications — at AT&T, Sprint-Nextel, and Verizon Business — was fundamentally a career in operational technology management. His roles as Manager of Provisioning Performance and Manager of Strategic Risk Mitigation at AT&T required understanding how technology systems fail, how to measure operational performance across distributed infrastructure, and how to identify and mitigate systemic risk. His PMP credential and Lean Six Sigma Black Belt reflect applied competency in exactly the kind of process improvement and technology deployment that a SCADA replacement requires. The decision to prioritize SCADA modernization in the ARPA allocation reflects a mayor who understood from his private-sector experience that operational technology infrastructure is a long-term investment with both immediate and downstream returns.
Key Facts at a Glance
- Investment: $500,000 SCADA system replacement (ARPA-funded)
- SCADA: Supervisory Control and Data Acquisition
- Function: real-time monitoring and remote control of water and sewer operations
- Legacy system: aging control infrastructure replaced with modern platform
- Security benefit: modern SCADA reduces cybersecurity vulnerability
- Operational benefit: automated alerts, remote control, reduced manual intervention