Runaway costs quietly creep into utility budgets.
A few extra milligrams per liter of coagulant. Blowers are left at a fixed high speed. A small leak that never makes the nightly round. None of it looks like a problem on any given day, and together it can add up to tens of thousands of dollars over a year.
The good news is that most of it is recoverable through operations rather than capital. Targeted O&M improvements unlock measurable chemical and energy savings without putting permits at risk.
This guide covers where the money leaks, the low-risk field practices that recover it, and a one-year roadmap that works for a small system with limited staff.
What O&M management actually means
Operations and maintenance management coordinates people, processes, equipment, and data so water and wastewater systems run safely, efficiently, and in compliance.
That means daily operations and process control, preventive maintenance, repairs, water quality testing, and regulatory reporting — practical field work paired with decisions informed by what the data is telling you.
Good O&M lowers the total cost of ownership while protecting public health. Those are not competing goals. In most systems, the same practices do both.
Where utilities overspend
Small inefficiencies compound. The most common:
Chemical overdosing. Safety factors become routine, especially after storms or changes in source water. Setpoints stay high long after water quality rebounds, because nobody went back to check.
Blower runtime and air delivery. Aeration is typically the largest energy consumer at a wastewater plant. Fixed-speed blowers waste power whenever actual oxygen demand runs below design, which is most of the time.
Hidden leaks, inflow, and infiltration. Distribution leaks and I&I increase treated volume, thereby increasing chemical use and energy per gallon actually delivered.
Pump inefficiency. Operating far from the best efficiency point increases kilowatt-hours per million gallons and accelerates equipment wear.
Drifting control loops. Level, ORP, or residual loops that have wandered increase dosing and aeration swings, and those swings drive cost peaks.
Reactive operations without data. Systems that lack real-time monitoring or SCADA oversight often miss efficiency problems entirely until they show up on a budget line. When operators rely on observation alone rather than trended data, expensive patterns go undetected.
Quick wins that protect compliance
Small systems can capture real value with low-risk field checks and controls tuning.
Jar testing to reset the dose
Run jar tests when raw water changes and again seasonally. Compare settled turbidity, floc formation, and sludge volume across multiple coagulant and polymer doses.
Use the lowest dose that reliably meets your settled and filtered turbidity targets. Then update setpoints and standard operating procedures the same day — otherwise the old dose comes back the next time someone reads the SOP.
Aeration control
Set dissolved oxygen targets that track diurnal loading rather than holding one number around the clock.
If your blowers have variable-frequency drives, step the speed down during low-demand windows. For fixed-speed units, trim air valves or stage a smaller blower overnight to limit over-aeration.
Pump curves and wire-to-water checks
Match the actual head and flow against the manufacturer’s curves. Confirm motor amps and calculate kilowatt-hours per million gallons.
If a pump is operating well to the left of its best efficiency point, consider throttling adjustments, impeller changes, or re-staging of duty and standby assignments. Involve the manufacturer before trimming an impeller — it is effective and irreversible.
Leak hunts using night flows
Night minimum flow analysis is the most productive leak-finding tool that most systems already have the data for. Where telemetry or SCADA data exists, trend pressure and flow to flag anomalies early.
Work visible leaks and high-loss zones first, then schedule acoustic correlation on the persistent areas.
Chemical feed calibration
Verify stroke length, speed, and actual output against expected gallons per hour. Replace worn check valves and degas heads.
Stable feed improves residual control and reduces waste — and it is the kind of half-day task that pays for itself repeatedly.
Clarifier and filter housekeeping
Skimmer performance, sludge blanket control, and backwash optimization frequently cut polymer and coagulant demand while improving finished water quality. Two benefits, one afternoon.
Using data to find savings faster
Field checks work. They work better when paired with real-time data.
SCADA-based monitoring and AI-supported analytics enable operators to continuously track pump activity, dissolved oxygen levels, chemical feed rates, and flow patterns, rather than relying solely on manual rounds. That visibility turns reactive troubleshooting into predictive maintenance: identifying vulnerable equipment before it fails and catching efficiency drift while it is still cheap to correct.
For small systems, this does not require a massive capital investment. Even basic SCADA alarm monitoring and trended data from existing sensors can reveal patterns that manual observation misses, such as a pump cycling too frequently, a blower running at full speed during overnight low-demand windows, or chemical feed rates that never adjusted after the last storm event.
The goal is the same as every other practice in this guide: spend less to operate safely.
Tracking what you changed
Savings stick when someone measures them. Useful monthly indicators:
- Chemical dose per million gallons treated, against target and season
- Kilowatt-hours per million gallons, by process area and facility total
- Blower runtime within dissolved oxygen setpoint bands
- Pumping efficiency and variance from baseline
- Non-revenue water or night flow trend
- Compliance metrics, incidents, and corrective actions
Tie these to your SOPs so operators can adjust quickly and document what changed. Monthly operational reports to state, federal, and customer stakeholders keep everyone aligned and make regulatory submittals considerably faster when they come due.
A one-year roadmap for small systems
Quarter 1 — stabilize and baseline
- Jar test and reset coagulant and polymer setpoints
- Calibrate chemical pumps, verify scales and day tanks
- Map blower configuration, check dissolved oxygen probes, begin staged-speed trials
- Record baseline numbers: dose per MG, kWh per MG, blower runtime, pump efficiency, night flow
- Assess current monitoring and SCADA capabilities; identify data gaps
Quarter 2 — optimize controls and equipment
- Implement variable-speed strategies for aeration and high-service pumping where feasible
- Tune control loops for residual, level, and ORP with documented bands
- Verify pump curves, adjust impellers or duty order, correct recirculation paths
- Begin targeted leak response driven by night flow trends
- Use trended SCADA data to identify recurring inefficiency patterns
Quarter 3 — extend savings and resilience
- Standardize filter backwash rates and sequences to cut solids carryover and polymer demand
- Rationalize alarms so operator attention lands on cost and compliance drivers
- Schedule preventive maintenance informed by run time, starts per hour, and predictive indicators
- Document asset condition and prioritize capital needs based on performance data
Quarter 4 — lock in and plan ahead
- Compare year-end numbers to baseline, quantify savings, compile a compliance summary
- Refresh SOPs, dosing tables, and seasonal playbooks
- Prioritize low-capital upgrades for next year by return — aeration trim, sensors, metering, and monitoring improvements
The sequence matters. Take a baseline before you change anything, or you will not be able to prove what the changes were worth.
Where ClearWater Solutions fits
Most of what is above requires an experienced operator with time to do it. That is the constraint small systems actually face.
As the town administrator in Pendleton, South Carolina put it: finding qualified operators with expertise across multiple aspects of operations “has always been an issue.”
Contract operations and maintenance. Our certified operators run treatment plants, distribution, collections, and meter reading and billing, keeping systems compliant with EPA and state standards while managing daily operating cost. The practices in this guide are what our operators do as routine work rather than as a special project.
Asset management, monitoring, and predictive operations. We use proactive asset management strategies, SCADA-based monitoring, and AI-enabled analytics to continuously track equipment health and identify cost-saving opportunities through optimized chemical usage and improved energy efficiency. This means moving from reactive repair to predictive, lower-cost, more stable operations while maintaining service quality and regulatory compliance.
Utilities operations and maintenance focus on extending asset life rather than running equipment to failure.
We operate across the Southeast, including a Hall County, Georgia system with a 0.75 MGD plant, 19 pump stations, and more than 350,000 linear feet of mains. In Petal, Mississippi, Mayor Tony Ducker noted that ClearWater “hit the ground running on day one” while saving the city money and headaches.
See our full services or contact us to talk through where your system is losing money.
Common questions
What is O&M management?
The coordinated operations and maintenance of water and wastewater systems, focused on safety, efficiency, asset reliability, and regulatory compliance.
What are the core O&M activities?
Daily process control, preventive maintenance, repairs, water quality testing, data trending, and timely regulatory reporting — carried out by trained, certified operators.
Where should a small system start?
Jar testing and chemical feed calibration. Both are low risk, require no capital, and usually produce measurable savings within a month.
Will optimizing chemicals put my permit at risk?
Not if changes are validated with lab data and documented limits. The point is to find the lowest dose that reliably meets your targets, not the lowest dose.
How does SCADA help reduce operating costs?
SCADA provides real-time visibility into equipment performance and process efficiency. Trended data reveal patterns that manual rounds miss, allowing operators to catch overdosing, excessive blower runtime, and pump inefficiency before they become expensive problems.
What does utility management do?
Aligns people, budgets, assets, and risk with service goals — maintaining compliance, planning capital work, and keeping service reliable.
Where to start
Chemical and energy savings are achievable without risking permit compliance when sound-field practice is paired with consistent measurement.
Start with jar testing, chemical feed calibration, and a pump curve check. Baseline what you find. Then work the roadmap at whatever pace your staffing allows.
If you would rather have experienced operators run it, contact ClearWater Solutions at 877.230.6228 or inquiry@clearwatersolutions.com.
