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A new concrete septic tank lowered by a crane truck into a red clay excavation beside a new-construction home; illustrating septic, sewer and water line work around McDonough, Georgia

Mcdonough, GA · Henry County

Sewer, septic and water line service in McDonough, Georgia, where the county seat operates its own utility.

McDonough is the county seat. Septic permits and records: Henry County Environmental Health Office (District 4 Public Health), part of District 4 Public Health — Environmental Health (Wastewater Management).
  • Georgia DPH-certified installer & pumper
  • Residential & commercial
  • Local shop in Oxford, GA

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The short answer

Who handles sewer, septic and water lines in McDonough, GA?

Inside its system, the City of McDonough owns the mains, treats sewage at its Walnut Creek plant and meters water; owners keep the pipe on their side. Beyond it, HCWA or a septic tank permitted by District 4 takes over. Atlanta Water & Sewage Solutions repairs and installs all three kinds of line around McDonough.

Reviewed by Atlanta Water & Sewage Solutions · Last updated

At a glance

County seat
McDonough
Health district
District 4 Public Health — Environmental Health (Wastewater Management)
Septic permits
Henry County Environmental Health Office (District 4 Public Health)
EH office phone
470-661-0044
Population
249,960 (ACS 2020-2024 5-year, table B01003)
Median home built
2001

The Mcdonough story

A courthouse town that never handed its pipes to the county

McDonough dates to 1823 and has been Henry County's seat ever since. When the county built out a water authority, the city kept its own plant, its own mains and its own sewer. HCWA's latest annual report still lists McDonough as a city that operates a separate water and sewerage system, buying only part of its water from the Authority.

That independence matters when something breaks. A backup on a street near the square goes to city Public Works on Racetrack Road, not to HCWA. The wastewater itself travels through a dozen city pump stations to a plant on Turner Church Road. Drive a mile past the edge of that network and the same symptom can mean an HCWA account or a tank in the backyard.

So the first thing we ask a McDonough caller is who sends the water bill. It tells us whose rulebook applies before anyone picks up a shovel.

On the record

  • McDonough was founded in 1823, named for Commodore Thomas Macdonough, and serves as Henry County's seat.
  • HCWA supplies some of McDonough's water, but the city runs its own water and sewerage system.

Local facts

McDonough's utility, in its own numbers

Each row links to the agency, code or publisher it comes from. Tap a source to check it yourself.

From the City of McDonough's Public Works pages, its rate notice and Wikipedia.
TopicWhat it saysSource
Pump stations12 across the city, checked daily by the wastewater staffCity of McDonough - Wastewater Treatment
Water plantCity Water Treatment Plant at 8 Dogwood Lane, staffed 4 a.m. to midnightCity of McDonough - Water Treatment
Billing structureBase charge by meter size, then volume tiers that climb past 6,000 and again past 10,000 gallons (since July 1, 2024)City of McDonough - Notice of Rate Increase, effective July 1, 2024
ZIP codes30252 and 30253McDonough, Georgia - Wikipedia
Size and locationAbout 13 square miles, roughly 28 miles southeast of downtown Atlanta along I-75McDonough, Georgia - Wikipedia

Sewer or septic?

When McDonough sewer is close, the tank has to go

McDonough's ordinance is tighter than the state's. If a city sewer runs in the street, alley or right-of-way your lot abuts and it sits within 100 feet of the property line, the city can send written notice. You then have 90 days to plumb the building into it at your own cost.

Where no public sewer is available, the code sends the building drain to a private system that the owner maintains without help from the city. When a line arrives later, the tank must be pumped of sludge and filled with gravel or dirt within 60 days of notice.

How to tell which one you have

  • A City of McDonough bill with a sewer line item
  • An HCWA bill instead, with or without sewer
  • No sewer charge anywhere: expect a tank and a District 4 permit file

Median year homes were built

2006

Typical house here is about 20 years old — and so is its original sewer or septic line.

ACS 2020-2024 5-year, table B25035 · Census Reporter API - McDonough, GA (ACS 2020-2024 5-year)

Housing era

Mostly a 2000s town, with an older core

Census estimates put the typical McDonough house at 2006, and more than 5,300 of its 11,619 homes went up in that single decade. Around 1,248 are older than 1980, most of them close to the square. The newer stock tends to fail at a settled joint or a root-invaded cleanout; the older stock can surprise us with whatever pipe the original builder chose.

Who owns what

Whose pipe is it in McDonough?

The city code draws two lines: the property line for sewer and the meter for water.
Cross-section: house, building drain, sewer lateral, cleanout, property line, tap and public sewer mainSTREETPROPERTY LINECLEANOUTTAPPUBLIC SEWER MAINSEWER LATERALBUILDING DRAINPROPERTY OWNERUTILITY
Green = sewer (APWA uniform color code)Typical handoff here: Property line
Cross-section: water main, meter box, water service line and houseSTREETPROPERTY LINEMETER BOXWATER MAINWATER SERVICE LINEPROPERTY OWNERUTILITY
Blue = potable water (APWA uniform color code)Typical handoff here: Meter
  • City of McDonoughsewer lateral

    Owner pays for the building sewer and its connection out to the property line

    Where the line sits: Property line (§ 13.08.060(C))

  • City of McDonoughwater service line

    City keeps up the lines to the meter; every pipe on the property side is the customer's

    Where the line sits: The meter (§ 13.04.330)

The code does not spell out who clears a blockage between the property line and the main, so we locate it on camera and call the city when the fault is on its side.

What it costs

City connection charges in McDonough

Proportionate-share fees set in the city code, charged inside and outside the limits. A separate tap-on fee covers labor and materials.

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
  1. 01How far the house sits from the street main
  2. 02Driveway, walk or landscaping over the route
  3. 03Filling an abandoned tank when a septic lot converts

Who to call at the county

Offices that matter on a McDonough job

Septic permits & records

Henry County Environmental Health (District 4 Public Health)

Address
137 Henry Parkway, McDonough, GA 30253
Hours
Mon-Fri 8 a.m.-5 p.m., closed 12-1

FAQ

McDonough sewer, septic and water questions

Straight answers, with the rule or record behind them. Still unsure? Call and ask the crew that digs.

(678) 863-5620

Does McDonough have its own sewer plant?

Yes. The Walnut Creek Water Pollution Control Plant on Turner Church Road, north of the city, is city-run and fed by 12 pump stations. HCWA runs separate plants for the unincorporated county.

Source: City of McDonough - Wastewater Treatment

How close does sewer have to be before McDonough makes me connect?

One hundred feet. Section 13.08.020 lets the city give written notice when a public sewer in an abutting street or right-of-way is within 100 feet of your property line, and the connection must be made within 90 days.

Source: McDonough, GA Code of Ordinances § 13.08.020 Use of public sewers required (Municode, Supp. 15)

Who fixes a leak between the McDonough water meter and my house?

You do. The code says the city maintains lines up to the meter, while everything on the property side, including finding the leak, is the owner's. The city may adjust an inflated bill once the leak is repaired.

Source: McDonough, GA Code of Ordinances § 13.04.330 Leak adjustments (Municode, Supp. 15)

What does it cost to tap into McDonough sewer?

The code sets a proportionate-share fee of $1,665.77 for a 3/4-inch meter and $2,776.84 for 1-inch, plus a tap-on charge for the city's labor and materials. The owner also pays for the building sewer out to the property line.

Source: McDonough, GA Code of Ordinances § 13.08.060 Building sewers and connections (Municode, Supp. 15)

Is my McDonough-address home on city sewer or HCWA?

Check the bill. Both utilities serve McDonough addresses, and HCWA reports only about 43% of its own water customers also have its sewer. If neither bill shows a sewer charge, the home is almost certainly on septic.

Source: Henry County Water Authority - Annual Comprehensive Financial Report FY2025

Where are septic permits handled for McDonough lots?

At District 4 Public Health's Henry County Environmental Health office, 137 Henry Parkway in McDonough, 470-661-0044. It issues separate residential repair and new-system applications.

Source: District 4 Public Health - Henry County location

How old are the houses in McDonough?

Mostly young. The Census Bureau's 2020-2024 estimates give a median build year of 2006, with over 5,300 homes from the 2000s alone. Pre-1980 houses are a small minority.

Source: Census Reporter API - Henry County places, year structure built (ACS 2020-2024 5-year, B25034)

On the map

McDonough from our shop

About 48 min / 28.9 mi by road from our Oxford shop

I-75, U.S. 23 and State Route 20 all run through the city.

Route source
NEWTONROCKDALEHENRYJASPERBUTTSCLAYTONSPALDINGFAYETTEOUR OXFORD SHOPMCDONOUGH
Mcdonough Our shop: Oxford, GACounty lines: U.S. Census Bureau

Ready when you are

City bill, HCWA bill or no sewer bill at all? WE WORK ALL THREE.

Tell us the address and what the drains or the meter are doing. We will work out which utility's line you are on, find the fault, and give you a free estimate on site.

(678) 863-5620
  • Georgia DPH-certified installer & pumper
  • Residential & commercial
  • Oxford, GA

Property type
What do you need?
Rather talk? (678) 863-5620
Where's the property?
Is sewage backing up inside? (optional)
Who should we call?

By submitting, you agree we may call or text you about this request. Msg & data rates may apply. Reply STOP to opt out. SMS terms.

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