
Emergency Septic & Sewer Service · Porterdale, GA
Emergency sewer and septic help in Porterdale, Georgia, including backups during high water on the Yellow River.
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or call (678) 863-5620The short answer
Emergency sewer or septic backup in Porterdale, GA
Porterdale is a city-sewered town, so a backup is usually in your lateral or the city's collection line. Stop all water use, keep people away from the sewage and check the yard cleanout. Neighbors affected too? Call the city's Water & Sewer Department. Just you? Call us at (678) 863-5620 and we'll tell you how fast we can be there.↗↗
Reviewed by Atlanta Water & Sewage Solutions · Last updated
At a glance
The Porterdale story
Right now, before anyone arrives
Turn off the washer and dishwasher and stop flushing. In a small cottage the tub or floor drain is often the lowest opening, and it fills first.↗
Lay towels as a barrier at doorways, keep children and pets out, and wash with soap after touching anything wet. CDC treats water contaminated with sewage as a health hazard.↗
Pop the outdoor cleanout cap if you can reach it safely. Standing sewage in it means the blockage is between there and the street; a dry cleanout means the problem is under the house.
Turn off the washer and dishwasher and stop flushing.
Who owns what
Main or lateral: who takes the call
Property ownersewer lateral
Your building sewer from the house toward the street↗
Where the line sits: The city has not published its exact handoff point
City of Porterdale Water & Sewer Departmentmain
Collection lines under city streets↗
Where the line sits: (770) 786-2217, option 4; office hours weekdays 8:30 a.m. to 4:30 p.m.
Newton County Water & Sewerage Authoritymain
Treats all of Porterdale's flow at the Yellow River plant↗
Where the line sits: Downstream of the city system
We could not find a published after-hours sewer number for Porterdale. If the main looks like the cause after hours, report it as soon as the office opens, and call us for anything on your side of the line.↗
More about Porterdale
A mill town built at the water's edge
Porterdale grew where the Yellow River drops over Cedar Shoals, which means its lowest streets sit close to a river that drains a big piece of metro Atlanta. The USGS gage at Porterdale measures a drainage area of 401 square miles upstream.↗
In September 2009, USGS gages on the Yellow River upstream in Gwinnett, DeKalb and Rockdale counties measured flows between 100-year and 200-year flood magnitude. When that basin floods, saturated ground pushes groundwater into cracked old laterals and swamps any remaining septic fields. FEMA maps a 1%-annual-chance flood zone along the river at the mill site.↗↗
Porterdale's code bans storm water, groundwater and roof runoff from the sanitary sewer. A downspout or yard drain tied into an old lateral is a classic cause of rainy-day backups, and we look for one while clearing the line.↗
Local facts
Porterdale emergency reference
Each row links to the agency, code or publisher it comes from. Tap a source to check it yourself.
| Topic | What it says | Source |
|---|---|---|
| Water & Sewer Department | (770) 786-2217, option 4 for the utilities clerk; Monday to Friday, 8:30 a.m. to 4:30 p.m. | City of Porterdale - Water & Sewer Department (via Wayback, 2025-02-19 capture) |
| Failed septic system | An inoperative system or one causing a health problem must be connected to sewer, repaired or reconstructed | Porterdale, GA Code of Ordinances § 28-151, Private sewage disposal (Municode, Supp. 8) |
| Grease limit in the sewer | No discharge above 100 milligrams per liter of fat, oil or grease | Porterdale, GA Code of Ordinances § 28-152, Regulation of discharges into public sewers (Municode, Supp. 8) |
Warning signs
Signs this can't wait until morning
Seeing two or more of these? Call before it gets worse.
- 1. Sewage in a tub, shower or floor drain that rises when anything upstairs drains
- 2. Gurgling from several fixtures at once during a heavy rain
- 3. Water or sewage seeping around the yard cleanout
- 4. A strong sewer odor inside after the river has been high
- 5. A septic alarm, on a property outside the sewer grid
More about Porterdale
If you are one of the few on a tank
What it costs
Emergency cost ranges
Sewer backup repair, minor repairs and cleanup
$500–$2,000
Typical market range — HomeGuide — How Much Does Sewer Line Replacement Cost? (Dec. 22, 2025), 2025
Sewer line repair, by method
$150–$3,800
Typical market range — HomeGuide — How Much Does Sewer Line Replacement Cost? (Dec. 22, 2025), 2025
Sewage cleanup, per square foot
$7–$15+
Typical market range — HomeGuide — How Much Does Sewage Cleanup Cost? (Aug. 22, 2025), 2025
Unclog or pump a backed-up septic tank
$295–$610
Typical market range — HomeGuide — How Much Does Septic Tank System Repair Cost? (Dec. 22, 2025), 2025
What moves the price
These are third-party typical market ranges, not our prices. Every job is quoted after we see it — estimates are free.
Free estimate: (678) 863-5620- 01River-high groundwater that keeps refilling an open trench
- 02Porches and walks over a short cottage lateral
- 03How far the sewage spread across wood floors
- 04Whether the break is on your side or the city's
More about Porterdale
Homes versus restaurants and converted mill space
A cottage backup is one lateral and one household. A restaurant or converted mill building has more fixtures, more people and, often, grease, which the city caps at 100 milligrams per liter. We clear the immediate blockage and then look at what caused it so it does not return next weekend.↗
FAQ
Porterdale emergency sewer questions
Straight answers, with the rule or record behind them. Still unsure? Call and ask the crew that digs.
(678) 863-5620What number do I call for a sewer problem in the Porterdale street?
The Water & Sewer Department at (770) 786-2217, option 4, during office hours, weekdays 8:30 a.m. to 4:30 p.m. We found no published after-hours sewer line.
Source: City of Porterdale - Water & Sewer Department (via Wayback, 2025-02-19 capture)
Why does my Porterdale house back up when the river is high?
Saturated ground can push groundwater into cracked laterals, and rain can enter through tied-in downspouts, which the city code prohibits. The river's 401-square-mile drainage area above town can keep the ground wet for days.
Source: USGS Water Services — site 02207540, Yellow River at Porterdale, GA (site description)
Is my house in the flood zone?
FEMA maps a Zone AE flood area along the Yellow River at the mill site. Check your own parcel on FEMA's flood map; low lots near the river are the most exposed.
Source: FEMA National Flood Hazard Layer (NFHL) - flood hazard zones query at the Porterdale mill site
Who fixes a backup caused by the city's line?
Collection lines under city streets belong to Porterdale's Water & Sewer Department. If a camera shows the problem past your lateral, that is theirs to repair.
Source: City of Porterdale - Water & Sewer Department (via Wayback, 2025-02-19 capture)
Where does the sewage go after it leaves my street?
All of Porterdale's flow goes to NCWSA's Yellow River treatment plant south of town, according to the 2024 county water analysis.
How soon can you get to Porterdale?
Call and we'll tell you how fast we can be there based on where our crews are that day. Tell us whether it is raining and whether neighbors are affected.
Nearby areas
Emergency septic and sewer help around Porterdale
- Covington septic & sewerCity of Covington sewer customers
- Oxford septic & sewerA city with a published after-hours utility line
- Almon septic & sewerSeptic homes in unincorporated Newton County
- Mansfield septic & sewerSmall-town sewer to the southeast
- Conyers septic & sewerRockdale County, upriver to the northwest
Sources
Where these facts come from
Rules, costs and local facts on this page link to the agency, code or publisher that states them. Cost figures are third-party market ranges, not our prices — estimates are free.
Reviewed by Atlanta Water & Sewage Solutions · Last updated
- 1One Water Resources Analysis, Technical Report (Newton County, NCWSA, City of Covington), Aug 2024 / updated Dec 2024
- 2City of Porterdale - Water & Sewer Department (via Wayback, 2025-02-19 capture)
- 3US EPA — Septic Systems: What to Do after the Flood
- 4CDC — Safety Guidelines: Floodwater
- 5USGS Water Services — site 02207540, Yellow River at Porterdale, GA (site description)
- 6USGS South Atlantic Water Science Center — September 2009 Flooding in North Georgia
- 7FEMA National Flood Hazard Layer (NFHL) - flood hazard zones query at the Porterdale mill site
- 8Porterdale, GA Code of Ordinances § 28-152, Regulation of discharges into public sewers (Municode, Supp. 8)
- 9Porterdale, GA Code of Ordinances § 28-151, Private sewage disposal (Municode, Supp. 8)
- 10Porterdale, GA Code of Ordinances § 28-149, General regulations (Municode, Supp. 8)
- 11HomeGuide — How Much Does Sewer Line Replacement Cost? (Dec. 22, 2025)
- 12HomeGuide — How Much Does Sewage Cleanup Cost? (Aug. 22, 2025)
- 13HomeGuide — How Much Does Septic Tank System Repair Cost? (Dec. 22, 2025)

Ready when you are
Sewage in a Porterdale cottage? CALL NOW. WE'LL TELL YOU HOW FAST WE CAN BE THERE.
Let us know where it is coming up, whether the river has been high, and whether the neighbors have it too. That tells us what to bring.
(678) 863-5620- Georgia DPH-certified installer & pumper
- Residential & commercial
- Oxford, GA
Free estimate
or call (678) 863-5620