Free Resource: How to Read Your Water & Sewer Bill
How to Read Your Commercial Water & Sewer Bill — and Spot the Signs of Meter Over-Reading
Your Water Bill Has More Information in It Than
Most Facility Managers Realize
The most important number on your bill is metered consumption — the volume your water meter registered during the billing period. Every other charge on the bill is calculated from or correlated with that number. If the meter over-reads by 15%, your water charge is 15% higher than it should be, your sewer charge is 15% higher than it should be, and any consumption-based tier or surcharge is calculated on an inflated baseline. Correcting the meter corrects every charge that flows from it.
How to Read Your Commercial Water & Sewer Bill — Step by Step
Most commercial water bills from municipal utilities follow a similar structure.
Here is what each section means and what to look for.
1
Metered Consumption
What it is
The volume of water your meter registered during the billing period — expressed in CCF (hundred cubic feet), HCF, gallons, or cubic meters depending on your utility.
This is the most important number on your bill. Every other charge is calculated from this figure. If this number is inflated by meter over-reading, everything downstream is inflated.
2
Water Consumption Charge
The charge for the volume of water delivered — calculated by multiplying metered consumption by your utility’s per-unit water rate. May be tiered by volume (higher rates at higher consumption bands).
3
Sewer / Wastewater Charge
What it is
The charge for wastewater discharge — calculated from metered water consumption (not from actual wastewater volume measured). Most utilities assume 80–100% of metered water becomes wastewater.
4
Service / Meter Charge
What it is
A fixed monthly charge for having a water meter connection — unrelated to consumption volume. Not affected by meter over-reading. Usually a small portion of the total bill for commercial accounts.
5
Surcharges & Fees
May include storm water fees, infrastructure replacement surcharges, conservation surcharges, and other variable charges. Some are flat, some are consumption-based.
6
Year-Over-Year Comparison
Most utility bills include a comparison of current period consumption to the same period last year. This is one of the most useful diagnostic tools for identifying anomalous consumption growth.
Red Flags on Your Water Bill That Indicate Meter Over-Reading
These are the specific patterns on your water bill that most consistently indicate meter over-reading — as opposed to actual increases in water consumption.
Consumption Rising Without Operational Growth
Metered volume growing independently of headcount, production output, facility area, or business activity — the most reliable single indicator.
Sewer Charge Growing Faster Than Water Charge
If your utility applies a higher rate multiplier to sewer than water, any meter over-reading inflates the sewer bill disproportionately.
Consumption Jumping at the Start of High-Demand Season
Irrigation season start, cooling season start, or any period where large-volume systems start up after dormancy creates maximum air purging through the meter.
Consumption Per Unit Above Benchmarks
Water cost or consumption per square foot, per room, per unit, per employee, or per production unit that consistently exceeds industry benchmarks.
Water Audits That Found High Usage Without a Source
Audits that confirmed elevated consumption without identifying where the water was going — because it was never water, just air and turbulence.
Bills Growing Despite Conservation Measures
Installing low-flow fixtures, behavioral programs, or process changes that should have reduced consumption — but metered consumption stayed the same or grew.