Does 811 Locate Private Sewer Lines?
Calling 811 is essential before digging — but many homeowners are surprised to learn that 811 typically does NOT locate private sewer laterals from the house to the street.
What 811 typically covers
811 is a “call before you dig” service that alerts utility operators so they can mark public underground lines. This often includes:
- Public gas lines
- Public electric
- Telecommunications
- Public water mains
- Municipal sewer mains
What 811 typically does NOT mark
In many municipalities, 811 does not mark private utilities on your property, such as:
- Private sewer laterals (house to street)
- Privately owned water lines
- Private conduit / buried wiring (often property-owned)
- Septic system components
Why private sewer laterals are a big deal
If you strike a private sewer lateral, you may be responsible for the repair and restoration costs. A private locate helps reduce risk before projects like:
- Foundation repair
- Fence or deck footings
- Tree planting
- Landscaping and drainage trenches
- Driveway / patio work
What to do next
Start with 811 for public markings, then consider a private locate for private utilities. Learn exactly what we do on our Foundation Piping & Private Utility Locates service page.
Service areas: Kansas City, Overland Park, Olathe, Lee’s Summit.
Related reading
- Why to Get a Private Utility Locate Before Foundation Repair
- Private Utility Locate Checklist Before You Dig
FAQ
Does 811 locate private sewer lines?
Usually not. 811 typically marks public utilities. Private sewer laterals often require a private locate.
Does calling 811 mean it’s safe to dig anywhere?
Not necessarily. Private utilities may still be unmarked even after 811 markings.