Does Lancaster's Clay Soil Damage Sewer and Water Pipes?

What are the 4 ways Lancaster ground damages pipes?

The 4 ways Lancaster ground damages pipes are listed below.

• Clay soil swells when wet and shrinks when dry, which shifts buried pipe.
• Limestone ground forms sinkholes that leave pipe unsupported, according to Warwick Township.
• Freeze and thaw cycles move shallow pipe.
• Tree roots follow cracks into clay and cast iron pipe.

Can a leaking pipe cause a sinkhole?

Yes, a leaking water or sewer pipe can cause a sinkhole in limestone ground, and the sinkhole keeps growing until the line is repaired, according to Warwick Township.

What should you do when the ground sinks over a pipe?

The 4 things you should do when the ground sinks over a pipe are listed below.

1. Keep people and vehicles off the sunken area.
2. Check the water meter for a leak.
3. Report sinkholes in the street to the municipality.
4. Call a plumber when the hole sits over a water or sewer line.

When should you call a plumber?

You should call a plumber in the 4 situations below.

• A sinkhole forms over a sewer or water line.
• The water meter moves with all fixtures off.
• Drains slow down after ground movement.
• Sewage odor rises from the yard.

Related plumbing problems and next steps

How much does the plumbing repair cost?

The plumbing repair cost depends on the damage: sewer line replacement costs $1,388–$5,323, and main water line replacement costs $646–$2,821, according to HomeAdvisor. Sewer line repair prices and local plumbers are on the sewer line repair in the Lancaster area page.

What is a related plumbing problem?

A related plumbing problem is sewer lateral responsibility lancaster pa, and the sewer lateral responsibility lancaster pa guide lists its causes and first steps.

Written and fact-checked by the Lancaster PA Plumbers editorial team using HomeAdvisor, EPA WaterSense and City of Lancaster data. Last updated October 29, 2026.