Who is Responsible for Sewer Lateral Connection to the Main Line?

A sewer lateral connection to the main line is an essential component of a property’s plumbing system. It ensures that wastewater from homes and businesses flows properly into the public sewer system. However, when issues arise with the lateral connection, a common question is: Who is responsible for its maintenance and repairs?

Understanding Sewer Laterals

A sewer lateral is the underground pipe that connects a property’s plumbing system to the main municipal sewer line. It consists of two parts:

Upper lateral – The section that runs from the property to the property line or curb.

Lower lateral – The portion that extends from the curb to the main sewer line in the street.

Property Owner vs. Municipality Responsibilities

Responsibility for sewer lateral maintenance and repairs varies by location, but generally follows these guidelines:

1. Property Owner's Responsibility

In most cities and counties, the homeowner or property owner is responsible for the maintenance, repair, and replacement of the entire sewer lateral, including the section that extends to the main sewer line. This means:

Clearing blockages in the lateral pipe

Repairing leaks or breaks in the sewer lateral

Replacing aging or deteriorated lateral pipes

Ensuring the lateral is properly connected to the main line

2. Municipality or Utility Responsibility

The local government or utility company typically maintains the main sewer line running under public streets. However, in some jurisdictions, they may also be responsible for the lower lateral, depending on local ordinances. Municipal responsibilities usually include:

Maintaining the main sewer line

Addressing blockages or damages in the main sewer system

Inspecting sewer lateral connections as part of public works projects

How to Determine Responsibility in Your Area

To clarify responsibility for sewer lateral maintenance in your area, property owners should:

Check local municipal codes – Most cities provide detailed guidelines on sewer lateral responsibilities.

Review property deeds or agreements – Some older homes may have unique agreements with the city regarding sewer connections.

Contact the local public works department – They can confirm whether the municipality covers part of the sewer lateral repairs.

What to Do If Your Sewer Lateral Needs Repair

If you experience slow drainage, sewage backups, or foul odors, your sewer lateral may need attention. Here’s what you should do:

Schedule a professional inspection – A plumber or sewer contractor can use a camera inspection to diagnose the issue.

Determine repair responsibility – Check local laws and policies to see if the municipality covers any costs.

Obtain necessary permits – Many areas require permits for sewer repairs or replacements.

Hire a licensed contractor – Professional sewer repair ensures compliance with regulations and prevents future problems.

Conclusion

While property owners are usually responsible for the sewer lateral connection to the main line, exceptions exist depending on municipal policies. Understanding your local regulations and taking proactive maintenance steps can help prevent costly repairs. If you suspect an issue with your sewer lateral, consulting with a professional contractor is the best course of action.

For expert sewer lateral repair and connection services in Maryland, contact Seadmok Water today!