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Plain white vacuum pump truck at the edge of a rural lawn with a hose running to an open green septic riser, pine woods behind; illustrating septic, sewer and water line work around Lilburn, Georgia

Lilburn, GA · Gwinnett County

Septic and sewer service in Lilburn, where county sewer and private septic tanks can sit on neighbouring lots.

Lilburn, Gwinnett County · about 50 min / 27.9 mi by road from our Oxford shop. ZIP codes 30047, 30048.
  • Georgia DPH-certified installer & pumper
  • Residential & commercial
  • Local shop in Oxford, GA

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The short answer

Does Lilburn have sewer or septic, and who works on each?

Both. Gwinnett County's Department of Water Resources provides sewer and water in Lilburn, yet the city itself says many homes still run on septic tanks. Sewer laterals belong to the owner up to the county connection; septic repairs need a GNR Gwinnett Environmental Health permit. We service both systems from our Oxford shop.

Reviewed by Atlanta Water & Sewage Solutions · Last updated

At a glance

County
Gwinnett County
ZIP codes
30047, 30048
Sewer
Gwinnett County Department of Water Resources (where sewer exists); many homes on septic
Water
Gwinnett County Department of Water Resources
From our shop
about 50 min / 27.9 mi by road from our Oxford shop
Population
15,390 (ACS 2020-2024 5-year, table B01003)

Sewer or septic?

Tank or tap? Sorting out a Lilburn address

City Hall does not publish a parcel count, but its stormwater staff put it plainly: Lilburn has many homes served by septic systems. That line sits on the same city page that tells owners to pump every three to five years and to permit any repair through Gwinnett's environmental health office.

Sewer is the county's system, not the city's. The quickest household test is the Gwinnett water bill: when the sewer line item reads $0.00, the house almost certainly drains to a tank in the yard.

How to tell which one you have

  • Check the Gwinnett DWR bill for a $0.00 sewer charge.
  • Ask GNR's Gwinnett office for any septic permit on file for the address.

The Lilburn story

A rail stop that became a commuter suburb

Lilburn grew around the Seaboard Air Line Railway, which reached the old McDaniel settlement in 1890; the town took the name of a railroad superintendent and incorporated in 1910. US-29, Lawrenceville Highway, now carries most traffic through the middle of town, 19 miles from downtown Atlanta.

Most of today's houses came much later. The city's 2024 comprehensive plan counts 60 percent of existing homes as built between 1980 and 1999, when residential building soared across Gwinnett. Sewer reached some of those subdivisions and not others, which is why tanks and taps now share the same neighbourhoods.

Water shapes the town too. Camp Creek runs through the center, with a greenway along its banks, and the USGS gauge named Camp Creek at Lilburn measures a 6.47-square-mile drainage. The city warns that failing septic systems can foul streams like it.

On the record

  • Lilburn's 2024 comprehensive plan reports that 60% of the city's existing housing units were built between 1980 and 1999.

Median year homes were built

1988

Typical house here is about 38 years old — and so is its original sewer or septic line.

ACS 2020-2024 5-year, table B25035 · Census Reporter: Lilburn, GA (ACS 2024 5-year)

Housing era

What a 1988 median home means below ground

Census estimates put the middle Lilburn house at 1988, so a typical drain line or tank here has served close to forty years. For septic owners that is the age when baffles corrode, lids crack and fields that were never pumped start to clog. For sewer owners it is the age when roots and settling joints show up on camera.

Local facts

Lilburn numbers a crew checks before the truck leaves

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

Local figures for Lilburn (ZIP 30047 and 30048), each tied to the page it came from. Retrieved September 2026.
TopicWhat it saysSource
Septic presenceCity says many homes are on septic; repairs are permitted through Gwinnett Environmental HealthCity of Lilburn — Stormwater Management
Storm drainsGwinnett DWR maintains the public storm system under an intergovernmental agreement; overflows go to 678-376-7000City of Lilburn — Stormwater Management
Creek gaugeCamp Creek at Lilburn, USGS 02206230, drains 6.47 square milesUSGS — Camp Creek at Lilburn, GA (02206230)
Population15,390 (ACS 2020-2024)Census Reporter: Lilburn, GA (ACS 2024 5-year)
Septic permit fee$275 for a residential site evaluation, permit and first inspection (GNR, 2026)GNR Environmental Health Fee Schedule — Gwinnett County (effective Jan 1, 2026)

Who owns what

Which Lilburn pipes are the county's and which are yours

The City of Lilburn does not own sanitary sewer or water mains. Gwinnett DWR does, and its ownership lines apply on every Lilburn street it serves.
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: Right-of-way
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
  • Gwinnett DWRsewer lateral

    Homeowner, from the house to and including the connection at the county system in the right-of-way

    Where the line sits: right-of-way connection

  • Gwinnett DWRwater service line

    Homeowner on the house side of the meter; the county keeps the meter and the pipe back to the main

    Where the line sits: meter

Septic systems sit entirely on the owner's side: tank, lines and field. GNR permits the work, and the county has no part in it until the house connects to sewer.

More about Lilburn

Two septic credits Lilburn owners can ask Gwinnett about

Gwinnett's septic page names Lilburn directly. Residents of the city and of unincorporated Gwinnett may earn a 5 percent credit on the Stormwater Utility Fee for sitting through DWR's Septic Tank Maintenance Workshop, taught with the county environmental health section.

Separately, the county gives a 10 percent stormwater fee credit for a pumping, renewable each year for five years with a dated hauler's receipt, and caps combined credits at 40 percent. Keep the invoice we leave behind and confirm eligibility for your parcel with DWR before you file.

  • Gwinnett DWR says residents of unincorporated Gwinnett and the city of Lilburn may qualify for a 5 percent Stormwater Utility Fee credit for attending its Septic Tank Maintenance Workshop.

Gwinnett's septic page names Lilburn directly.

Who to call at the county

Who signs off on Lilburn work

Septic permits & records

Gwinnett Environmental Health Department (GNR Public Health)

Address
455 Grayson Hwy, Suite 600, Lawrenceville, GA 30046

On the map

Getting to Lilburn from Oxford

About 50 min / 27.9 mi by road from our Oxford shop

Pin near Old Town and Main Street; we come up through Snellville and along US-29.

Route source
NEWTONROCKDALEWALTONDEKALBGWINNETTMORGANBARROWOCONEECLAYTONFULTONCLARKEJACKSONFORSYTHCOBBHALLCHEROKEEOUR OXFORD SHOPLILBURN
Lilburn Our shop: Oxford, GACounty lines: U.S. Census Bureau

FAQ

Lilburn septic and sewer questions

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

(678) 863-5620

Is my Lilburn house on sewer or a septic tank?

Look at your Gwinnett water bill. If the sewer amount shows $0.00, the county says you are very likely on septic. The city confirms many Lilburn homes are, even though Gwinnett sewer serves much of the town.

Source: Gwinnett County DWR — Septic Tanks

Who do I call when sewage backs up in a Lilburn street?

Gwinnett County dispatch at 678-376-7000. The City of Lilburn's stormwater page routes sewer overflows, water interruptions and illicit discharges to that county line, because Gwinnett runs those systems.

Source: City of Lilburn — Stormwater Management

Do I need a permit to repair my septic system in Lilburn?

Yes. The city tells owners to permit any repair with Gwinnett's Environmental Health Department, which GNR Public Health runs from Grayson Highway in Lawrenceville. A Level 3 soil report comes first, and the 2026 residential fee is $275.

Source: GNR Environmental Health Fee Schedule — Gwinnett County (effective Jan 1, 2026)

Can I get a stormwater discount for septic upkeep in Lilburn?

Possibly two. Gwinnett names Lilburn residents as eligible for a 5 percent credit for attending its septic maintenance workshop, and the county offers 10 percent per pumping on its stormwater fee. Confirm your parcel with DWR.

Source: Gwinnett County DWR — Septic Tanks

Sewer runs down my street in Lilburn. Must I hook up?

If the main is within 200 feet of your property line, Georgia's rule generally requires a building to connect, and a failing tank must connect when sewer is available. Gwinnett charges roughly $4,172 in fees for a typical residential conversion.

Source: Ga. Comp. R. & Regs. 511-3-1 (On-Site Sewage Management Systems)

How old is the plumbing under a typical Lilburn home?

The median house dates to 1988 in the latest Census estimate, and the city's plan puts 60 percent of homes between 1980 and 1999. That makes most drain lines and tanks here thirty to forty-five years old.

Source: Census Reporter: Lilburn, GA (ACS 2024 5-year)

Who maintains the storm drain behind my Lilburn house?

Public storm pipes and drains in the right-of-way are inspected and maintained by Gwinnett DWR under an agreement with the city. Private detention ponds in subdivisions are handled through recorded maintenance agreements.

Source: City of Lilburn — Stormwater Management

Ready when you are

Not sure which system you have, Lilburn? We'll find the lid or the cleanout.

Tell us what you're seeing. We'll come out for a free on-site estimate, confirm whether the house drains to Gwinnett sewer or a tank, and name the office that applies.

(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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