Meter to houseService lines repaired and replaced
Pressure-testedBefore the trench is backfilled
Upfront pricingBy the job, not by the hour
Two water districts, one rule: past the meter, it’s yours
Maple Valley has no city water department. Cedar River Water and Sewer District serves the north part of the city, and Covington Water District serves the south part. On the question of who owns the pipe in your yard, they agree.
Cedar River’s leak brochure shows it in a diagram: the meter, its setter and fittings are district property, and customer responsibility starts at the service line connection right behind them. Covington’s wording is just as plain. A leak on your side of the meter is yours to repair, and the water it used is on your bill. Cedar River adds a piece of advice we’d second: for any outdoor leak, call a professional plumber, because knowing where to dig keeps the digging small.
How Maple Valley’s water districts flag a leak
Most Covington Water District homes are billed every other month, so a buried leak can run a long while before a bill shows it. Both districts try to catch it sooner.
- A 24/7 Movement alert from Covington Water District, meaning water flowed through your meter nonstop for seven days
- A Notice of High Water Use from Cedar River, sent when a reading is far above the same period last year
- The meter’s leak indicator turning with every tap closed: a small blue pinwheel on most Covington meters, a red triangle on newer Cedar River registers
- A soft, wet or extra-green strip of lawn between the meter box and the house
- Pressure that has dropped at every fixture at once
Cedar River’s brochure gives a simple way to tell inside from outside. Close the main shut-off valve at the house, then look at the meter. If the indicator stops, the leak is indoors. If it keeps moving and you have no irrigation system, the leak is in the service line.

Hardpan in some Maple Valley yards, gravel in others
What a leaking line looks like from the surface depends on the ground, and Maple Valley has two very different kinds. The city’s stormwater plan describes hard, compacted glacial till around Lake Wilderness, Pipe Lake and Lake Lucerne, and gravelly glacial outwash that drains extremely well in other parts of town.
In till, leaking water has trouble soaking in. It tends to come up as a wet spot or follow the trench toward the house or the street. In gravel, it can drain straight down and never reach the lawn, which is why a line can lose water for months with nothing to see. That’s also why we confirm a leak at the meter before a shovel goes in, instead of trusting the yard.
When a second leak changes the math
Repair the break
One failure in a line that’s otherwise sound: a cracked fitting, a spot damaged by digging, a single split. We expose that section, repair it and test it.
Replace the run
A line that has leaked before, shows corrosion or brittle pipe where we open it, or is made of a material with a poor track record. A new line from meter to house ends the cycle.
There’s a local reason to think about this carefully. Both districts limit how often they’ll adjust a bill for a leak: generally once every five years at Covington, and once every fifteen years per parcel for a full adjustment at Cedar River. Both make room for a customer who replaces the entire service line. A second patch on an aging line could leave you paying for the lost water in full. We’ll show you what we find in the trench and give you an upfront price for both routes, by the job, not by the hour.

What a Maple Valley water line job involves
- Utility locate first. Washington law requires it before any excavation.
- Leak confirmed at the meter, so the digging is for the right problem
- Line exposed and repaired or replaced with modern pipe made for burial
- Pressure test on the new work before the trench is backfilled
- Water back on, with pressure checked at the house
- Paperwork you can use. Both districts ask for repair invoices with a leak adjustment request, so keep ours.
Meter stops when the house valve is closed? Then the leak is inside. See water leak repair. If the pressure at the house reads high once the line is fixed, a pressure-reducing valve is a plumbing repair worth pricing alongside it.
Water Line Repair & Replacement FAQs
There’s a leak in my Maple Valley yard. Is that my pipe or the water district’s?
If it’s between the meter and the house, it’s yours. Covington Water District says that if a leak occurs on your side of the meter, you’re responsible for the repair and for the water it used. Cedar River Water and Sewer District draws the same line: the meter, its setter and fittings are district property, and your responsibility starts at the service line connection just past them.
Will Covington Water District adjust my bill after a service line leak?
It may. The district’s published rules say the leak has to be repaired with no ongoing flow at the meter, use has to be more than 25 CCF above the same billing period a year earlier, you need receipts or invoices for the repair, and the request is due within 120 days. Adjustments are generally limited to one every five years unless the entire service line has been replaced. Check with the district for current terms.
Does Cedar River Water and Sewer District offer a leak adjustment?
Yes. Its information sheet describes a full leak adjustment for service line leaks, available once every fifteen years per parcel. The leak has to be repaired within 30 days of when you found it or the district told you about it, and the written request is due within 120 days, with copies of repair invoices. Replacing the complete service line restarts the fifteen-year period.
I got a 24/7 Movement alert from Covington Water District. Is my water line leaking?
Not necessarily. The district says the alert means water moved through your meter around the clock for seven straight days, and that a dripping faucet, a toilet flapper or irrigation can trigger it. Check those first. If the meter keeps moving with the main shut-off at the house closed and any irrigation turned off, the water is leaving through the buried line, and that’s when to call us.
Are there lead water service lines in Maple Valley?
Cedar River Water and Sewer District reports that its service line inventory classified every line in its service area as non-lead. If your home is on Covington Water District, ask the district about your address. Either way, when we open a line we’ll tell you what it’s made of and what condition it’s in.
Do you call 811 before digging?
Yes. Washington law requires a utility locate before any excavation, even on your own property, and the City of Maple Valley reminds residents of that on its permitting page. Locating the water line and the other buried utilities is the first step of every water line job we do.
