Water Costs for Small Businesses: What to Expect

Most small businesses that mostly use restrooms, such as offices, shops, salons and clinics, pay roughly $85 to $300 a month for water and sewer combined. A café typically lands at a few hundred dollars, while a full-service restaurant or laundromat can reach $800 to $3,700. Those are planning estimates built from typical usage and an assumed combined rate of about $12 per 1,000 gallons. Your utility's actual rates, your meter size and your fixed charges will move the number. Here is how the bill works, what drives it, and how to estimate your own.

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What small businesses typically pay

Water use varies far more between business types than between utilities, so start with what the business does. The table below gives a rough monthly range for common small businesses.

Bills assume about $12 per 1,000 gallons for water and sewer combined, plus roughly $60 a month in fixed charges. Both are illustrative. Rates in your area can be well above or below them.

Treat each range as a starting point. A 150-seat restaurant uses far more than a 40-seat one, and a salon with a laundry machine uses more than one without. The useful move is to take your own usage, from a past bill or an estimate, and apply your utility's actual rates, which is what the water bill calculator does.

How a commercial water bill is built

A business bill is rarely one rate times one volume. Most utilities combine several pieces:

• Base (service) charge. A fixed monthly amount, usually set by meter size. Utilities use it to recover fixed costs such as billing, meter reading and customer service, so you pay it even in a month with no use.
• Volume charge. A rate per 1,000 gallons, or per CCF (100 cubic feet, about 748 gallons). Commercial customers may see a single flat rate, tiered rates, or a water budget with a higher price above it.
• Sewer charge. Commonly calculated from the same metered water volume, with its own base and volume components.
• Fire protection and other fees. Properties with a dedicated fire line may pay a fixed fire-flow charge, and many utilities add stormwater or surcharge line items.

Where the water goes in different businesses

Knowing the main uses tells you where to look for savings. According to the EPA's WaterSense program, restrooms follow kitchens as the second-highest water use in restaurants, and the largest uses in office buildings are restrooms, heating and cooling, and landscaping. That matches what we see on bills:

• Offices and retail: mostly toilets, urinals and faucets, so usage tracks headcount and foot traffic.
• Restaurants and cafés: dishwashing, prep sinks, ice machines and cleaning come first, with restrooms next.
• Salons and clinics: shampoo bowls, handwashing, sterilization equipment and laundry.
• Laundromats: washing machines dominate, so machine type matters more than anything else.

Worked example: a café using 25,000 gallons

Suppose a café uses 25,000 gallons in a month. Its utility charges $5.50 per 1,000 gallons for water, $7.00 per 1,000 gallons for sewer, a $45 water base charge, a $25 sewer base charge and a $30 stormwater fee. All figures here are made up to show the method.

Divide the total by the volume and the café's real cost is $16.50 per 1,000 gallons, three times the $5.50 water rate on the rate sheet. That gap is why budgeting from the headline water price alone understates the bill.

What pushes the bill up

Volume. Every gallon is billed twice, once as water and once as sewer, so waste is expensive.

Equipment. Older toilets, spray valves and water-cooled ice machines can quietly dominate a kitchen's use. The EPA's WaterSense at Work guidance covers commercial ice machines, dishwashers and other kitchen equipment because of this.

Leaks. A leak nobody sees can run for months. Small, steady losses add up quickly, as the figures below show.

Irrigation. Landscaping water is often billed as sewer too, unless it runs through a separate irrigation meter.

Rate increases. Utility rates generally trend upward, so budget for increases rather than assuming today's rate holds.

Your lease. If you rent, find out whether water is metered to your unit, shared across the building or folded into common-area charges. Shared arrangements can hide your real use.

Costs outside the monthly bill

A few charges never appear on the monthly statement, so they catch new owners off guard:

• Connection and capacity fees. Opening in a new building or upsizing a meter can trigger tap, capacity or system-development fees. These range from hundreds to many thousands of dollars depending on the utility and the meter size.
• Deposits. New commercial accounts sometimes require a deposit.
• Backflow testing. Many utilities require commercial connections to have backflow preventers tested every year by a certified tester.
• Grease interceptor service. Food businesses usually have to maintain one and have it pumped on a schedule. It is a sewer-related cost, not a water-bill line.

Where to cut costs first

Work from cheapest and highest impact to most expensive:

1. Check for leaks. Read the meter after closing, then again an hour later. Any movement means a leak. Fix running toilets and dripping faucets first.
2. Review your account. Confirm the meter size, rate class and any fees you may not need.
3. Upgrade restroom fixtures. WaterSense labeled toilets use 1.28 gallons per flush or less, and WaterSense urinals use 0.5. EPA's guidebook states that WaterSense labeled products are independently certified to use at least 20 percent less water than standard models.
4. Tackle the kitchen. Low-flow pre-rinse spray valves (1.6 gallons per minute or less) and air-cooled ice machines cut water and often energy too.
5. Separate irrigation. Ask about an irrigation meter, and use a weather-based controller so you do not water in the rain.
6. Ask about rebates. Many utilities offer rebates on fixtures, kitchen equipment and irrigation controls for businesses.

The bottom line

A small office or shop typically spends under about $150 a month on water and sewer, while food and laundry businesses can spend ten to thirty times that. The monthly volume matters less than most owners expect, because the fixed charges and the sewer line can triple the effective price per gallon. Check your own rates, read your meter, fix leaks early, and put your own numbers into the calculator below to see what you should expect.