Underground Water Leak Detection in Citrus Heights, CA

Signs the leak is outside, not inside

First, prove which side of the house valve the leak is on. Shut off the main valve where the line enters the house, then watch the meter at the curb. Still moving? The leak is underground between the meter and the house. Or in a yard line. Stopped? The problem is inside.

Once you know it's outside, the yard starts talking:

• Soggy spots that never dry. One area stays wet days after watering or rain.
• Grass that grows greener in patches. A leaking line fertilizes and waters one stripe of lawn better than your sprinklers do.
• A sinking or soft area of soil. Water washing out soil underneath leaves a depression. Sometimes called a sinkhole in miniature.
• The sound of running water near the meter box with everything off.
• A bill that jumps with no change in use. The meter doesn't care whether the water went into your house or into the dirt.

Here is how to detect a water leak outside before anyone digs. A yard leak leaves its own signs: soggy soil that stays wet in a dry spell, ponding water in a low corner, or surface damage where the ground has sunk a little. Line tracing marks the pipe path across the yard first, so the dig lands on the leak instead of on a guess.

Why yard lines break here

Citrus Heights sits on Fiddyment soils. Clay that swells when wet and shrinks when dry, sitting over hardpan. Every wet-dry cycle flexes buried pipe a little. Over decades, that movement cracks joints and splits older lines. Add tree roots hunting for water along the pipe trench, and original service lines from 1970s builds, and you get the most common underground failures we see: at the meter connection, under driveways where soil compacts, and along old irrigation tie-ins.

How we find a buried leak

Digging up a yard to hunt is the old way. Here's the current one:

• Acoustic listening. A ground sensor listens for the sound of pressurized water escaping. Moving the sensor along the line's path, the volume and pitch peak right over the break. Often within a couple of feet, even a few feet down.
• Tracer gas. We pump a safe hydrogen-nitrogen mix into the isolated line and sweep the ground with a sensitive detector that reads in parts per million. Where the gas surfaces is where the pipe is open. Precise, and it works where sound won't travel well.
• Line locating. Before any digging, we trace the pipe's exact path and depth so the repair crew opens one hole, in the right place, at the right depth.

Most underground leaks we find get repaired through a single excavation the size of a dishwasher. Not a trench across the yard.

What repair looks like

Once the break is marked, we expose that one section, cut out the failed pipe, and install the repair with proper bedding so soil movement doesn't attack the same joint again. The hole gets backfilled and compacted. If the line is failing in multiple spots. Common with the oldest galvanized or polybutylene service lines. We'll say so plainly and quote a replacement instead of selling you repairs one at a time. Call (123) 456-7890 to schedule the locate.

Frequently asked questions

Related

• Water main and service line leak detection
• Irrigation and sprinkler leak detection
• Slab leak signs and repair options
• Hidden water leak detection
• High water bill investigation

Last updated: October 25, 2026.