Managing sewer credits for a single building is straightforward enough. But when you’re overseeing 10, 50, or 200 commercial properties across multiple cities, the complexity multiplies. Each property has different equipment, each city has different programs, and each utility has different requirements. Smart multi-site operators have developed systematic approaches that scale their savings without scaling their headaches.
The Portfolio Assessment: Where to Start
The first step for any multi-site operator is a portfolio-wide assessment to identify which properties have the highest credit potential. Not every building justifies the effort — a small office with a modest cooling tower may only qualify for $200 per month in credits, while a large medical complex could qualify for $5,000 per month. Prioritizing the highest-impact properties first generates the most savings with the least effort.
The assessment looks at four factors for each property: cooling tower capacity and age, local sewer rates, current metering infrastructure, and the local utility’s credit program requirements. Properties with large towers in cities with high sewer rates and straightforward credit programs go to the top of the list. The EPA’s WaterSense program provides benchmark data for cooling tower water consumption by building type that can help estimate credit potential even before installing meters.
Standardizing the Process
The most successful multi-site operators standardize their sewer credit process across the portfolio, even though the specific requirements vary by city. This means using consistent submetering hardware across properties (simplifying procurement, installation training, and maintenance), establishing a standard data collection protocol (same meter reading frequency, same data format, same reporting templates), creating application templates that can be adapted to local requirements rather than starting from scratch for each city, and building a renewal calendar that tracks every property’s credit expiration date.
Standardization reduces the per-property management burden from a project to a process. When the fifth property is going through the application, your team isn’t figuring out how — they’re following an established playbook. For a detailed look at what applications typically require, see our guide on sewer credit application documentation.
Centralized Monitoring
For portfolios of more than five or six properties, centralized real-time water monitoring becomes almost essential. A cloud-based monitoring platform that aggregates data from all properties into a single dashboard lets the portfolio manager see which buildings are performing efficiently and which have anomalies, generate sewer credit renewal documentation for any property on demand, track portfolio-wide water consumption and savings trends, and identify properties where equipment issues or leaks are costing money.
The Department of Energy recommends centralized monitoring for multi-facility operators specifically because it enables data-driven decision-making that property-by-property management can’t achieve.
Navigating Different City Requirements
The biggest challenge for multi-site operators is that no two cities handle sewer credits exactly the same way. Dallas has a different application process than Houston. Chicago’s program differs from Milwaukee’s. Some cities require engineering certification; others accept self-reported data. Renewal periods range from annual to biannual to permanent.
Building a reference database of program requirements by city is invaluable. For each city in your portfolio, document the utility’s program name and contact information, the specific application requirements (forms, data periods, certifications), renewal requirements and deadlines, and any unique local requirements (inspections, third-party verification). Our guide to sewer credit requirements by city covers the major metropolitan areas, but always confirm current requirements directly with each utility.
The Economies of Scale
Multi-site operators benefit from significant economies of scale. Meter vendors offer volume pricing — buying 50 meters at once costs far less per unit than buying one at a time. Monitoring platform subscriptions are cheaper per property at scale. And the institutional knowledge built from managing credits across many properties means your team can process applications faster, troubleshoot utility pushback more effectively, and optimize each property’s credit amount based on experience with similar buildings.
A portfolio of 20 properties each saving an average of $12,000 per year in sewer credits generates $240,000 in annual savings. Even after accounting for meter hardware, monitoring subscriptions, and internal management time, the net savings are substantial — and they recur every year.
Ready to Find Out What You Could Save?
RPM Water Equity Solutions helps commercial facilities recover money lost to sewer billing assumptions. If your building has cooling towers, you may be paying sewer charges on water that never reaches the sewer system.
Request your free assessment today and find out how much you could recover.
Scale Your Savings Systematically
The difference between a multi-site operator that captures full sewer credit value and one that doesn’t isn’t luck or location — it’s process. Assess your portfolio systematically, standardize your approach, centralize your monitoring, and build a city-by-city reference that your team can execute against. The savings potential across a commercial real estate portfolio is too significant to leave on the table because the process seemed too complex. It’s not complex — it just requires the same systematic approach you apply to every other aspect of property management.
