Jun 17, 2026

Why Is My Water Bill So High in Merced, CA? Common Causes and How to Fix Them

High utility bill in Merced? Learn why your water bill may have jumped, what causes a sudden increase, and

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Did your last utility bill make you do a double take? You are not alone. Many Merced homeowners open their monthly statement and wonder why their water bill is so much higher than normal.

A sudden increase in your water bill can mean a lot of things. Some causes are simple, like a change in your usage or a rate hike from the City of Merced. Others point to a hidden plumbing problem that could be wasting hundreds of gallons a day.

This guide breaks down the most common reasons your utility bill might be high, how to check for problems on your own, and when it is time to call a plumber for help.

How Water Bills Work in Merced, CA

Before you panic over a high bill, it helps to know how the City of Merced charges for water. Your utility bill is not just for water. It usually includes several municipal services bundled together:

  • Water service -- Covers the water your household uses each month, based on your meter reading.
  • Sewer service -- A fee based on your water usage, since most of the water you use ends up in the sewer system.
  • Trash service -- Trash and recycling pickup, usually a flat monthly charge.
  • Irrigation -- If your property is in the Merced Irrigation District service area, you may see a separate irrigation charge on your bill.

Each of these has its own rate, and rates can change. The City of Merced sets water and sewer rates, and any rate increase will show up on your next bill. If you are not sure what each line item means, call customer service at 209-388-7289 or visit the city website for a full breakdown of your utility account charges.

Quick tip: Compare your current bill to last month and to the same month last year. This helps you see if the increase is seasonal, a one-time spike, or an ongoing trend.

Top Reasons Your Water Bill Is High in Merced

A high water bill almost always comes down to one of these causes. Some are easy to fix on your own. Others need a plumber.

1. A Hidden Water Leak

This is the number one reason for a sudden jump in your water bill. A hidden leak in your plumbing can waste thousands of gallons before you even notice. Common spots for hidden leaks include:

  • Under slab or foundation -- Water seeps under your home where you cannot see it.
  • Behind walls -- A leaky pipe inside a wall can run for weeks before you spot a stain.
  • Toilet flapper valve -- A worn flapper lets water trickle from the tank to the bowl nonstop. This alone can waste 200 or more gallons per day.
  • Outdoor irrigation lines -- A cracked sprinkler line or broken valve underground can leak much water without any visible sign above ground.
  • Water heater -- A slow drip from your water heater can add up fast over time.

Test for a toilet leak: Put a few drops of food coloring in the tank. Wait 15 minutes without flushing. If color shows up in the bowl, your flapper valve is leaking and needs to be replaced.

2. Seasonal Water Use Changes

Merced summers are hot. When temps climb, your household water use tends to spike. Watering lawns, filling pools, running sprinklers, and even extra showers all add to your consumption. Many homeowners see their bill double or even triple in the summer months without realizing how much water they are using outdoors.

3. A Rate Increase from the City

The City of Merced reviews and adjusts water and sewer rates from time to time. Even a small rate increase can cause a noticeable bump on your utility bill, especially if you use a lot of water. Check the city website or your bill statement for any notes about new rates.

4. A Running Toilet or Dripping Faucet

A toilet that runs nonstop or a faucet that drips all day might not seem like a big deal. But these small leaks add up. A single dripping faucet can waste over 3,000 gallons a year. A running toilet can waste much more.

5. Old or Failing Plumbing Fixtures

Older faucets, toilets, and showerheads use far more water than modern low-flow models. If your Merced home still has fixtures from the 1990s or earlier, they could be using two to three times more water per flush or per minute than newer ones.

6. A Faulty Water Meter

In rare cases, a faulty meter can give a bad reading and lead to a higher bill. If you have ruled out leaks and your usage seems normal, you can ask the City of Merced to test your meter. If there is an error, you may qualify for a bill adjustment.

7. New Appliances or Household Changes

Did you add a new washing machine, dishwasher, or hot tub? Do you have more people living in the home? Any change in your household size or water-using appliances can bump your consumption and your bill.

Cause Avg. Water Wasted Easy DIY Fix?
Hidden slab or wall leak Hundreds of gallons/day No -- call a plumber
Running toilet Up to 200+ gallons/day Yes -- replace flapper
Dripping faucet 3,000+ gallons/year Sometimes
Broken irrigation line Varies widely No -- call a plumber
Old fixtures 2-3x more per use Yes -- upgrade
Summer lawn watering Seasonal spike Yes -- adjust schedule
Faulty meter N/A (bad reading) No -- contact the city

How to Check for a Water Leak on Your Own

Before you call a plumber, there are a few things you can do to check for leaks at home:

Step 1: Read your water meter. Find your water meter, usually near the curb. Write down the numbers. Then do not use any water in the house for two hours. Check the meter again. If the numbers went up, you have a leak.

Step 2: Check all toilets. Use the food coloring test on every toilet. A bad flapper valve is the most common and cheapest fix for a high water bill.

Step 3: Look for wet spots. Walk your yard and check near your foundation for any soft, wet, or green patches that do not match the rest of the lawn. These could point to an underground pipe leak.

Step 4: Inspect visible plumbing. Look under every sink, around your water heater, and near your washing machine hookups. Even a small drip adds up.

Step 5: Check your irrigation system. Turn on your sprinklers and walk the yard. Look for broken heads, soggy areas, or water pooling where it should not be.

If you find a leak or your meter test shows water use when nothing is running, it is time to call a plumber for a full leak detection service.

Water Conservation Tips for Merced Homeowners

Merced is in the Central Valley, where water conservation matters year-round. Here are simple ways to cut your water use and lower your utility bill:

  • Water your lawn early or late. Water before 8 AM or after 6 PM to reduce waste from heat.
  • Fix leaks fast. Even a small drip wastes water and money every single day.
  • Upgrade to low-flow fixtures. New faucets, showerheads, and toilets use far less water per use.
  • Only run full loads. Run your dishwasher and washing machine only when they are full.
  • Use a smart sprinkler timer. Smart timers adjust based on weather so you do not overwater.
  • Shorten showers. Cutting two minutes off each shower can save over 1,500 gallons a year for a household of four.
  • Mulch your garden beds. Mulch keeps moisture in the soil so you water less often.

City programs: The City of Merced and local agencies sometimes offer assistance programs and rebates for water conservation upgrades. Check with customer service or your utility account portal to see if you qualify.

When to Call a Plumber About a High Water Bill

Some high water bill causes are easy to fix on your own. Others need a pro. Here is when you should call a licensed plumber:

  • Your meter test shows a leak but you cannot find it.
  • You see wet spots in your yard or on your walls but no obvious source.
  • A toilet keeps running even after you replace the flapper.
  • Your water heater is leaking or making odd sounds.
  • You suspect a slab leak or underground pipe issue.
  • Your bill has been high for two or more months in a row with no change in usage.

A plumber with leak detection tools can find hidden leaks that you cannot see. Fixing a hidden leak can cut your water bill by hundreds of dollars per month.

How Dutchman Drains & Plumbing Helps Merced Homeowners Save on Water Bills

Dutchman Drains & Plumbing has been serving Merced and the Central Valley for over 20 years. When your water bill spikes and you cannot figure out why, their team can help.

Here is what they offer:

Service How It Helps Your Water Bill
Water Leak Detection Finds hidden leaks that waste water and spike your bill
Plumbing Repair Fixes leaky pipes, valves, and joints to stop waste
Water Heater Service Repairs or replaces a leaking water heater
Repiping Swaps old, corroded pipes that leak behind walls
Video Inspection Camera shows the exact spot and cause of a leak
Water Filtration Clean water at the tap so you skip bottled water costs

Dutchman Drains is veteran owned and family run, based in Atwater and serving Merced, Atwater, Livingston, Chowchilla, Turlock, Modesto, and the rest of the Central Valley. They offer honest quotes, same-day service for many calls, and 24/7 emergency help when you need it most.

Our experience with Eric and his staff could not have been more positive. Would absolutely recommend if you want good old fashioned professional service.

-- Jill Delmas

Merced, CA | Google Review

Positive: Responsiveness, Punctuality, Quality, Professionalism, Value

Ready for the same great service? Call Dutchman Drains at (209) 683-3881

Understanding Your City of Merced Utility Bill

Your City of Merced utility bill can be confusing if you do not know what to look for. Here is a quick guide to the key parts:

  • Account number and service address -- Make sure these match your home. Billing errors happen.
  • Meter reading and usage -- Shows how much water your household used this billing cycle. Compare it to past months.
  • Water charge -- Based on your consumption and the current rate set by the city.
  • Sewer charge -- Usually a percentage of your water usage. Higher water use means a higher sewer fee.
  • Trash and recycling -- A flat monthly fee for pickup service.
  • Irrigation charge -- If you are in the Merced Irrigation District, this shows up as a separate line item.
  • Deposit, credit, or adjustment -- You may see a deposit hold on a new account, a credit from overpayment, or an adjustment if the city corrected a billing error.

Payment Options

The City of Merced offers several ways to pay your utility bill:

  • Online through the city portal (one time payment option or auto-pay)
  • By phone with a credit card
  • In person at city hall
  • By mail

You can also view your payment history and manage your utility account through the city website. If you are behind on a bill and worried about a disconnect, call customer service to ask about assistance or a payment plan. They may be able to help before any action is taken. Keep your email address on file so you get alerts and reminders.

Common Questions About High Water Bills in Merced

Q: Why did my water bill suddenly go up? A: The most common causes are a hidden leak, seasonal water use changes, or a rate increase from the city. Start by checking your toilets, faucets, and irrigation system. If you cannot find the cause, call a plumber for leak detection.

Q: How do I know if I have a water leak? A: Turn off all water in your home and check the meter. If it is still moving, you have a leak. Also look for wet spots in your yard, under sinks, and near your water heater.

Q: Can a running toilet really make my bill that high? A: Yes. A running toilet can waste 200 or more gallons per day. That adds up to thousands of gallons per month, which will show up as a big increase on your utility bill.

Q: Will the City of Merced adjust my bill if I had a leak? A: In some cases, yes. If you can show that a repair was made, the city may offer a bill adjustment for the billing period when the leak was active. Call customer service at 209-388-7289 to ask about the process.

Q: How much does leak detection cost? A: Costs vary based on the scope of the work. Dutchman Drains gives you a clear quote up front. Contact us at (209) 683-3881 to set up a visit.

Q: Does Dutchman Drains fix my electric bill too? A: No. Dutchman Drains is a plumbing company. But fixing leaks and upgrading old fixtures can lower your water and sewer charges, which are often the largest part of your utility bill. For your electric bill, contact your power provider.

Stop Overpaying on Your Merced Water Bill

A high water bill is your home trying to tell you something. Whether it is a hidden leak, old fixtures, or summer usage, there is almost always a fix.

If you have tried the DIY checks and your bill is still high, do not wait. A small leak today can turn into a big repair bill tomorrow. Call Dutchman Drains & Plumbing to find the problem, fix it fast, and start saving on your monthly water and sewer charges.

Call Dutchman Drains & Plumbing at (209) 683-3881 or contact us online.

Dutchman Drains & Plumbing, Inc. 4467 N. Gurr Rd, Atwater, CA 95301 Serving Merced, Merced County, and the Central Valley Licensed Contractor | Veteran Owned | Family Run

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