When Is It Time to Modernize? Planning Electrical Upgrades for Water & Wastewater Facilities
Across the water and wastewater industry, the need for infrastructure and equipment modernization has reached a critical stage. In the ASCE 2025 Infrastructure Report Card, the U.S. wastewater category received a sobering “D+” grade—a clear signal that overburdened core systems are aging faster than they are being repaired, rehabilitated, or replaced. As utilities balance uptime and growth demands amid tightening oversight, aging infrastructure extends beyond piping and tanks. It encompasses electrical distribution systems, automation and controls engineering, SCADA systems, facility communications, and limited energy infrastructure that directly affect reliability and safety.
The hard truth? When modernization is deferred until failure, the result is unplanned downtime, emergency spending, and increased compliance risk.
Wastewater operators need trusted partners to evaluate their systems and guide them through thoughtful enhancements. Guzman Engineering is an electrical engineering consulting firm specializing in water and wastewater facilities. Guzman works with owners to plan and implement proactive modernization practices. By combining electrical engineering services, SCADA systems integration, security systems design, low-voltage design engineering, and utility coordination services, Guzman helps operators prioritize uptime and improve long-term reliability.
The Age of Water and Wastewater Infrastructure
Wastewater systems in the U.S. encompass roughly $1 trillion in asset value, spanning around 17,500 wastewater treatment plants, and capacity needs are only increasing. Despite growing demand, renewal and replacement projects are noticeably lagging, declining from 3% to 2% over the past decade. As new projects stall, system failures have risen from 2.0 to 3.3 per 100 miles of pipe.
A significant portion of water infrastructure systems exceed 50 years in service. Water collection systems regularly surpass 50 years, while treatment equipment can easily span a 15–25year lifecycle. Electrical distribution and MCCs often require intensive rehabilitation or refurbishment after 20–30 years in operation, depending on the environment. SCADA platforms and control hardware frequently become obsolete and experience partial failure within 10–20 years as advancements are made and protocols evolve.
Even when overburdened and undermaintained, water infrastructure systems may still “run”—but at a high price: operators are relegated to reactive measures to prevent catastrophic failure rather than pursuing long-term, strategic improvements. Equipment components at this age have limited readily available replacement parts and as such, emergency spending is required to “band-aid” or fully replace equipment that creates some new and mostly old interconnected systems.
Modernization Triggers: When Facilities Typically Require Updates
Facilities usually show early signs when modernization is due. Operational issues are classic signs of aging systems, including:
Frequent nuisance trips/alarms
Failed protection equipment such as surge protection devices
Unexplained shutdowns
Hard to find replacement parts
Outdated firmware
Less and less staff understand how the control system functions
Longer maintenance windows
Influences like population growth, new processes, and change in leadership electrical and control systems to their limits. Documentation gaps such as outdated online diagrams, old coordination studies, inconsistent labeling, and incomplete as-builts, also increase safety and compliance risks.
These indicators seldom require a full system replacement but point to the need for phased, strategic upgrades in lieu of a piecemeal, reactive approach. At bare minimum, having biannual (every two years) record drawing development/corrections and preventive maintenance performed on all electrical/SCADA/Control equipment would be incredibly beneficial for reliability and accuracy.
Common Types of Water and Wastewater System Upgrades
Electrical distribution and reliability upgrades involve a variety of systems. Several notable areas include:
MCC replacements
Switchgear modernization
Emergency power and generator integration
ATS improvements
Starter Replacements
Updated protection and coordination studies
Updated Documentation
Preventive Maintenance
Timely enhancements to these systems improve safety and uptime while preventing larger issues, like cascading outages.
SCADA and controls modernization includes:
PLC standardization
HMI updates
Historian and server migration backup
Recoordinated alarming
Controls preventative maintenance
I/O retesting
Instrumentation recalibration/recertification
Redesigned network architecture
These upgrades improve visibility, speed up troubleshooting, enhance reporting, and reduce reliance on obsolete hardware and software.
Communications and low-voltage infrastructure improvements typically include:
Communication Cabling Attenuation Retesting/Recertification
Consolidating network architecture
Reconfiguration of network security equipment
Updates to current cybersecurity best practices
Recalibration of security and access control systems.
Close coordination among electrical, controls, and low voltage teams—and the involvement of qualified cabling contractors—reduces commissioning conflicts and improves long term operations management.
Documentation and safety alignment through updated one lines, accurate as-builts, refreshed studies, and consistent labeling simplify inspections and minimize rework during future expansion projects.
Planning and Phasing Modernization
Modernization can occur with minimal disruption when utilities use a phased approach that leverages temporary systems while building new, permanent infrastructure. Successful modernization depends as much on coordination as on equipment selection, and thoughtful planning is essential to maintaining uptime and controlling budgets. Early coordination across civil, electrical, automation, and low voltage disciplines reduces interface problems.
What This Means for Water and Wastewater Projects
Modernization most often occurs at lift stations, pump stations, and treatment plant expansions, where electrical distribution, MCCs, panels, SCADA systems, and facility communications converge. Delaying upgrades can lead to a host of issues down the line, including unplanned outages, emergency spending, costly change orders, and prolonged commissioning projects—trends reflected in ASCE’s continued low grades for water subsectors.
Why Work with Guzman Engineering
Guzman Engineering supports water and wastewater clients through integrated electrical engineering expertise. Our team provides comprehensive SCADA programming and integration, including PLC programming, HMI development, historian and reporting, alarm strategy, and resilient network architecture. Collectively, these improvements help operators enhance visibility, monitoring, and responsiveness.
Guzman helps you minimize rework by aligning priorities like lifecycle planning, design intent, system coordination, documentation, and commissioning strategy into a single, cohesive approach. Guzman emphasizes responsive communication, a thoughtful, multi-disciplinary approach, and efficient delivery without cutting corners. Underpinning every trusted capability is a long-standing and deep understanding of Texas utility infrastructure.
Planning for Modernization
Aging water and wastewater infrastructure demands proactive planning and intentional intervention. Early assessment and phased modernization across electrical systems, automation and controls, SCADA, and communications systems help facility operators improve uptime, prioritize safety, and protect long-term budget stability.
To help implement strategic upgrades to your facility, Guzman Engineering provides modernization planning, phased upgrade coordination, and system assessments tailored to your facility’s needs. Access key services like modernization planning, phased upgrade coordination, and system assessments tailored to your facility’s needs. We believe every project/facility is critical and the priority does not end upon completion of the project. Every active/operational facility should be treated as a living entity that requires check ups and upgrades to operate at peak performance. Contact Guzman Engineering to discuss the best solution for your facility.