Mableton, GA Sewer and Drain Service: Local Rules
Georgia Sewer cleans, inspects and repairs drains, sewer lines and water lines for homes in Mableton. Below: who to call first when sewage backs up, where your part of the line ends under the local provider's rules, and what we do about it.
Georgia Sewer — Drain & Sewer Specialists · Operated by Alpha Plumbing and Sewer, LLC
Mableton, GA at a glance
- County
- Cobb County
- Water and sewer
- Cobb County Water System
- Plumbing permits
- City of Mableton Building Division
Utility rules and numbers checked October 24, 2026
Whose pipe is it in Mableton?
The public sewer in Mableton is run by Cobb County Water System. The provider answers for its main and its part of the line; the line on your side is the property owner's, and that is the part we work on. More on how the line is split: who is responsible for your sewer line.
Cobb County Water System
Public sewer in Mableton
If sewage is backing up or overflowing
- Emergency response and dispatch (sewer backups, broken water lines)(770) 419-6201
Other number it lists
- Water System main line(770) 419-6200
Where your part of the line ends
You build and maintain the service line from your house to the point where it connects to the county's service lateral, and any pump that moves sewage from the house is yours.
Source: Cobb County Code § 122-153, read October 24, 2026“Property owners are responsible for construction and maintenance of the service line from the premises served to the point of connection with the county service lateral.”
On your side of that line? That part is the work we do. Call (404) 482-2527 or send a request.
Our services in Mableton
Each job starts with a diagnosis; the service follows what we find.
Local rules in Mableton
What the city and its utilities publish about the jobs we do here, each with its source (checked in October 2026). The provider's full rules are on Cobb County.
When sewage backs up
- Cobb County Water System reserves its emergency dispatch line for a sewer backup in a home or street and for a broken water line with gushing or severe leaks; its customer service call center keeps weekday business hours (Cobb County).
- Cobb County Water System asks customers who notice slow drains or a backup after county crews have repaired a nearby sewer to stop adding water to their plumbing and report it to emergency dispatch, because more repairs may be needed (Cobb County).
Your sewer line and the public main
- Cobb County's water and wastewater code makes property owners responsible for building and maintaining the service line from the house to the point where it meets the county's service lateral, and any pump that lifts sewage into the county system is the owner's to repair (Municode).
- Cobb County Water System's FAQ puts the public sewer lines on the county and the sewer pipes within a homeowner's property on the homeowner (Cobb County).
Cleanouts (1)
- Cobb County's Development Standards require sewer service laterals built for new development to be at least 6 inches in diameter within the public right-of-way or a sewer easement and to end in a cleanout assembly, with each lateral's location permanently marked in the curb (Cobb County).
Roots and pipe defects (1)
- Cobb County Water System's camera inspections of its sewers often find broken pipes, offset joints, root intrusion and improperly installed service connections, defects it repairs to help prevent blockages and overflows (Cobb County).
Grease and what goes down the drain (2)
- Cobb County Water System says 85 percent of sewer blockages in the county are grease-related and happen in residential areas, and it asks residents to let grease harden and scrape it into the trash instead of pouring it down the drain (Cobb County).
- Cobb County's sewer-use code allows garbage disposals in homes but bans garbage that hasn't been properly shredded and solids such as bones, rags and plastics that can obstruct sewer flow (Municode).
Permits (3)
- Mableton's Building Division issues plumbing permits for water, sewer and gas line installations or repairs, and it accepts permit applications only through its online portal, not by email (mableton.gov).
- Mableton lets homeowners pull permits for work they do themselves on their primary residence; when a contractor does the work, the contractor must be licensed and pull the permit, and inspection requests are due by 4 p.m. the day before (mableton.gov).
- Cobb County stopped accepting building and development permit applications for Mableton addresses after February 28, 2025, and the City of Mableton began accepting them on March 1, 2025 (Cobb County).
Digging in the street or right-of-way (2)
- Mableton's Site Development Division lists utility/right-of-way permits among the site development permits it issues, and the city sends land disturbance plans to Cobb County's Department of Transportation and Water System for review (mableton.gov).
- Mableton requires a land disturbance permit for projects that disturb more than 1,500 square feet or send water onto another property or the right-of-way, while minor activities such as home repairs and maintenance work are exempt (mableton.gov).
Your water line (2)
- Cobb County Water System's 2025 water quality report says it buys drinking water wholesale from the Cobb County-Marietta Water Authority and sells it to unincorporated Cobb addresses and to the cities of Mableton, Acworth, Kennesaw and Powder Springs (Cobb County).
- Cobb County Water System says a leak before the meter is the county's to repair and a leak after the meter is the property owner's; if the meter still spins once every fixture and the main house shutoff are turned off, the leak is probably on the line between the meter and the house (Cobb County).
Septic systems (1)
- Cobb County Water System says a water bill with a sewer charge means the home is on public sewer, while a bill without one likely means an onsite septic system, which Cobb & Douglas Public Health regulates in Cobb County (Cobb County).
Other local rules (3)
- In its 2025 service-delivery discussions with the new city, Cobb County said the Cobb County Water System would continue to serve Mableton residents, with the service paid for through water bills (Cobb County).
- Mableton's Building Division lists the 2024 International Plumbing Code with 2026 Georgia amendments among the codes the city has adopted (mableton.gov).
- Cobb County's code says the county sewer system is designed to serve buildings by gravity from the ground-level floor up, so basements and below-grade rooms may not drain by gravity, and a lift system for a building drain that sits too low is the owner's sole responsibility (Municode).
Lead service line records in Mableton
Water utilities must keep a public record of what each service line is made of. What the categories and the utility's letter mean: lead service line check.
Cobb County Water System
Water utility
Lead service line inventory: Inventory map
Cobb County Water System says it found no lead or galvanized-requiring-replacement lines; its whole inventory is listed as non-lead, and it has a mapped inventory and a form to report your own line's material.
Look up your line The utility’s inventory page
Source: Cobb County, read October 24, 2026Who owns the water line
The county owns the pipe from the water main to the meter; the pipe from the meter to the house is the owner's.
Source: Cobb County, read October 24, 2026Nearby service areas
Drain or sewer trouble in Mableton?
Tell us what the drains are doing, where and since when.
Call (404) 482-2527Or send a service request online
Operated by Alpha Plumbing and Sewer, LLC
Sewage coming out of a manhole or at the street?
Who to call first
Cobb County Water System(770) 419-6201Emergency response and dispatch (sewer backups, broken water lines)
Drain or sewer trouble in Mableton?
Call and describe what is happening, where, and since when — the visit starts from there.
Georgia Sewer — Drain & Sewer Specialists · Operated by Alpha Plumbing and Sewer, LLC