Stone Mountain: Granite underfoot
Stone Mountain sits beside the granite dome that gives it its name, and in parts of the area that rock is close to the surface.
ZIP codes:
- 30083
- 30087
- 30088
What affects water lines here
Shallow granite slows digging and can force a line to be routed around it. Pinpointing the leak before opening the ground keeps the job small.
Subdivisions here range from older ranches near the village to newer homes on the outskirts, so line material varies street to street.
If you find a leak
- Check where the water is. In the street or before the meter, call DeKalb County Department of Watershed Management. Between the meter and the house, it is the owner's line.
- Run the meter test. Everything off, then the main valve at the house closed. A meter that keeps moving means the yard line is leaking.
- Limit the damage. Keep the house valve closed if the leak is large, and photograph the wet ground and the meter.
- Call for the repair. Ask whether the break will be pinpointed first and whether a permit is needed.
Services for Stone Mountain homes
Questions
Who is responsible for the water line at my Stone Mountain home?
If your bill comes from DeKalb County, the county owns the main and the meter and you own the pipe from the meter to the house. Check the bill if you are near a county or city boundary.
Which ZIP codes does this Stone Mountain page cover?
30083 30087 30088. Some of these ZIPs also reach into neighboring communities.
What should I do first if I see water in the yard?
Shut off the main valve at the house and watch the meter. If the meter stops, the leak is inside; if it keeps moving with the house closed, the yard line is leaking.
Sources: DeKalb County Department of Watershed Management service line ownership sheet, lead and copper FAQ and 2026 galvanized pipe notices; Atlanta News First, 15 January 2025; City of Decatur news release, 14 January 2025.
