A water bill leak adjustment is a credit a water utility applies after a leak pushes usage far above normal. The customer fixes the leak, sends proof and asks in writing. Eight city policies are compared below. Three of them use a 50 percent formula, and the deadlines differ from city to city.
Why a Leak Costs More in 2026
Water is getting more expensive, so every wasted gallon costs more than it did a few years ago. Household water and sewer bills rose 5.1% in 2025, a five-year high, according to Bluefield Research. Its index tracks utilities in 50 cities and shows a 24.2% increase over five years.
Leaks add to that. The EPA WaterSense program says leaks in the average household can waste more than 9,300 gallons of water every year. The same page says nine percent of homes have leaks that waste 50 gallons or more per day.
Nobody budgets for a pipe they cannot see. The bill arrives first, and the leak gets found second.
What Is a Leak Adjustment?
A leak adjustment lowers the charge for water that ran through the meter because of a leak. It does not erase the whole bill. Dallas and El Paso both say the adjustment does not cover repair costs. The utility compares the leak period with your normal use and credits part of the difference.
Approval is not automatic. Dallas says in plain words that submitting a request does not guarantee an adjustment. Portland grants adjustments only after the leak has been repaired.
Every water leak adjustment policy in this comparison asks for the same basic things. Those are a repaired leak, details or proof of the repair and a written request.
Utility bills can jump for reasons that have nothing to do with a leak:
Why Your Budget Billing Went Up: How 6 Big Utilities Recalculate It
Water Bill Leak Adjustment Rules in 8 Cities
The rules below come from the official pages of Fort Worth Water, Dallas Water Utilities, El Paso Water and Baltimore City. The other four are San Diego, Austin Water, the Portland Water Bureau and Atlanta Watershed Management.
Policies change. Read the page for your own utility before you apply.
| City | Deadline to ask | What the credit covers | How often | Sewer charges |
|---|---|---|---|---|
| Fort Worth | 60 days after repairs are completed | 50 percent of the use above average, up to 2 consecutive billing periods | Once in a rolling 12-month period | Not stated on the page |
| Dallas | Not stated on the page | Excess water repriced at the lowest rate, up to 3 months | Once per 12 months | Page says it does not apply to wastewater or sewer leaks |
| El Paso | 60 days after the repair | A 50 percent formula, up to 2 consecutive monthly bills | Once per rolling 24 months | Not covered. Water portion only |
| Baltimore | 60 days after the bill is issued | Interior leak: 50 percent of the extra water. Underground leak: all of the extra water | Interior once every 3 years. Underground once every 2 years | Updated for underground leaks only |
| San Diego | 120 days after the first high bill | Concealed pipe leaks only. Formula not stated on the page | Not stated | Not stated |
| Austin | 90 days after the leak repair | Formula not stated on the page | Not stated | Not stated |
| Portland | 90 days after the bill showing the higher use | Formula not stated on the page | Not stated | Considered for a credit |
| Atlanta | 12 months after the Payment Due By date | Formula not stated on the page | Not stated | Not stated |
Four Things the Table Shows
The clock starts in different places. Fort Worth, El Paso and Austin count from the repair date. Baltimore, San Diego, Portland and Atlanta count from a bill date. San Diego states that requests received after the 120-day period will not be considered.
The credit can be partial. Fort Worth credits 50 percent of the use above average. Baltimore credits half of the extra water for an interior leak. The customer pays for the rest. Baltimore takes off all of the extra water only for an underground leak.
The type of leak matters. San Diego does not adjust for irrigation leaks, swimming pool leaks or plumbing fixture leaks. El Paso requires a hidden leak, such as one behind a wall, underground or under the foundation. It also requires the leak to raise consumption by more than 10 ccf. Fort Worth says a hidden leak, such as one under the foundation or inside the wall, may qualify.
Sewer charges follow their own rules. El Paso applies its adjustment to the water portion of the bill only, not to wastewater fees. Dallas says its adjustment does not apply to wastewater or sewer leaks. Portland considers sewer charges for a credit, and Baltimore updates them for underground leaks.
How Much Water a Leak Wastes
Small leaks run all day and all night. Atlanta Watershed Management publishes these estimates on its bill review page.
| Type of leak | Gallons per minute | Gallons per month |
|---|---|---|
| Slow drip | 0.1 | 4,320 |
| Leaky toilet flapper | 0.25 | 10,800 |
| Stuck faucet | 1.5 | 64,800 |
| Running toilet | 2.5 | 108,000 |
| Leaking pipe | 3 | 129,600 |
Here is a hypothetical example using the Fort Worth formula. A home normally uses 6,000 gallons a month, and a leak pushes one bill to 20,000 gallons. The use above average is 14,000 gallons. A 50 percent adjustment credits 7,000 gallons, so the customer still pays for 13,000 gallons.
Water is not the only utility bill climbing this year:
Why Your Electric Bill Keeps Going Up in 2026 (And What You Can Actually Do About It)
Water Leak Adjustment Letter Example: What to Include
A request for a water bill adjustment due to a leak needs facts, not a long story. Austin Water lists five items, and they make a solid checklist for any city.
- Your water account number
- Property address where the repair took place
- Date range of the high bill charges caused by the leak
- Date and a description of the repair
- A copy of the leak repair receipt or the paid invoice describing the repair
San Diego also asks for the date the leak was discovered, plus a phone number and email address. Baltimore requires proof from a licensed plumber for an underground leak. Atlanta accepts receipts for parts, reports or photographs as proof, but not invoices without proof of payment.
Keep the letter short. State the account, the dates, the repair and the bills you want reviewed. Attach the receipt.
Who Pays the Water Bill When There Is a Leak?
The adjustment goes to the water account. In Baltimore, the property owner or a person authorized by the owner must make the request. El Paso requires the person asking to be an El Paso Water account holder.
A renter whose name is not on the account may need the owner to apply. Who owes what between a landlord and a tenant depends on the lease and on state law. This article does not cover those rules.
What to Do When the Bill Jumps
- Check the meter. The EPA says to read it before and after a two-hour period when no water is being used. If the meter changes at all, you probably have a leak.
- Test each toilet. Put a few drops of food coloring in the tank. Color in the bowl after 10 minutes means a leak.
- Fix the leak and keep the receipt or the paid invoice.
- Search for the name of your utility plus the words leak adjustment. Write down the deadline and where the clock starts.
- Request the water bill leak adjustment in writing, with proof, before that deadline.
- Keep paying what the utility asks during the review. Atlanta requires a temporary payment within 20 days of its acknowledgement letter.
- Ask about an appeal if the answer is no. Atlanta allows an appeal within 14 days of the decision letter.
A jump is easier to catch when each month sits next to the last one. MoneyWisePro offers a free tracker for logging each water bill next to the meter reading.
Another housing bill can rise even after you pay what was asked:
You Paid the Escrow Shortage in Full. Your Payment Still Went Up. Here Is Why.
A water bill leak adjustment can cut a painful bill, but only for the customer who asks in time.
Do you know the leak adjustment deadline for your own water utility?
Disclaimer: MoneyWisePro is not a water utility or financial advisor. This article is for general information only and is not financial or legal advice. Contact your water provider for guidance on your specific situation.
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