Sourced from the Greenville County Code of Ordinances (current through Ordinance 5760, passed December 2, 2025), the Greenville County Land Development Regulations (April 2018, amended through January 2, 2024), Renewable Water Resources, and R.61-56 — last checked August 2026.
Who Issues Greenville County Septic Permits
This surprises people moving to South Carolina from almost anywhere else: Greenville County does not issue septic permits, and neither does any other South Carolina county. Onsite wastewater permitting is a state function.
The agency is the South Carolina Department of Environmental Services (SCDES), created on July 1, 2024 when Act 60 of 2023 split the old DHEC into SCDES for environmental programs and SC DPH for public health.
Where the application goes: ATTN: OSWW, SCDES, 2600 Bull Street, Columbia, SC 29201
Statewide phone: 1-855-731-2504
Online: epermitting.des.sc.gov · Form: D-1740, rev. 07/2026
The Fee Is $150 in Every County
Because permitting is centralized, there is one fee statewide. R.61-56 § 102.2: the Department “shall charge a fee of one hundred and fifty dollars ($150.00) to evaluate the site of a proposed onsite wastewater system,” amended effective May 27, 2022. There is a $150 re-application fee if the instructions are not followed.
You may instead hire a Professional Soil Classifier privately, capped at “no more than three (3) times SCDES’s fee” — so up to $450. People use it to skip the queue, and the queue is real: a 700-permit backlog in April 2023, and coastal counties running six to fourteen weeks behind.
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The County Does Not Take Septic Applications
Most counties in this guide have some role in the process. Greenville has removed itself from it entirely, and it published the date.
Two notes on reading that. First, it says “DHEC” because it predates the July 1, 2024 reorganization — the agency is now SCDES, and the statewide intake above is where the application goes. Second, the county publishes a local address alongside it, and we are deliberately not reprinting that address: the street and ZIP code in the county’s listing do not match each other, and we would rather send you to the state intake that we know is correct than to a door that may not exist.
The practical consequence is simple. Do not begin at the county for a septic permit in Greenville. Begin at SCDES, then come back to the county for the building permit.
Where the County Does Still Feature
The Land Development Regulations (April 2018, amended through January 2, 2024) keep one relevant hook. § 3.3.4(G): “If public sewage facilities are proven infeasible, the developer shall contact SCDHEC for septic tank approval information.”
Note the sequence that implies: public sewer is the assumed default, and septic is what you turn to after demonstrating sewer is not feasible. That framing matters if you are subdividing rather than building on an existing lot.
Article 7 of the same regulations is titled Water Supply / Sewage Disposal, with sections on availability of and approval for essential services, water and sewer systems, and extension of public water and sewer systems. Its text begins beyond the point our retrieval reached, so if a mandatory connection distance exists in Greenville County, that is where it lives and we have not read it. Ask the Planning Department on 864-467-7425.
ReWa at a Hundred Years Old
Renewable Water Resources marked its centennial in 2025 — “helping to move our communities forward since 1925” — and its scale is the reason septic is comparatively rare in the developed parts of this county:
- 296-square-mile service area
- Eight major water resource recovery facilities
- More than 40 million gallons of wastewater treated per day
- Serves Greenville County plus portions of Spartanburg, Laurens and Anderson counties
That last line is worth holding onto if you are comparing counties: ReWa does not stop at the county line, so a property in northern Laurens or western Spartanburg may have a Greenville-based sewer provider.
The Rule That Costs the Most Money: Six Inches
South Carolina requires a minimum vertical separation of six inches between the deepest point of effluent application and the zone of saturation — the level groundwater reaches — for systems under 1,500 gallons per day (R.61-56 § 200.3).
- South Carolina — 6 inches
- North Carolina — 18 inches on the coast, 12 inches inland
- Georgia — 24 inches
- Alabama — 24 inches
South Carolina permits systems on ground its neighbors would refuse. Upstate Piedmont clay holds water rather than draining it, so a six-inch margin measured in a dry month is worth checking against a wet one.
The Repair Area Nobody Tells You About
Under R.61-56 § 200.7, a new system must reserve “a usable repair or replacement area equivalent to at least fifty (50) percent of the size of the original system” — 100 percent for community systems.
Read that as a land requirement, because that is what it is. Your lot has to hold the tank, the drainfield, and half a drainfield again in reserve, while meeting every setback. On a tight lot the reserve area is what fails, not the drainfield. In the older unsewered pockets around Greenville, lot sizes were set before reserve areas were a consideration, which is where this bites.
Setbacks and Sizing
- 75 feet from a private well · 100 feet from a public well
- 75 feet from the mean high water line of a stream, canal or retention pond, and from a delineated critical area line
- 25 feet from a drainage ditch · 25 feet upslope of a basement
- 5 feet from a property line · 5 feet from a building
- Rock or a restrictive horizon must sit more than 12 inches below the deepest point of effluent application
There is no state minimum lot size for a septic lot. R.61-56 requires only that the lot be large enough to hold the system, the reserve area and the setbacks. We found no minimum lot size for septic and no watershed or wellhead overlay district in the Greenville County Zoning Ordinance (amendment record through December 3, 2025). But we could not read the Land Development Regulations’ Article 7 in full, so treat that as an absence in the text we could retrieve rather than a settled negative. Worth knowing separately: Greenville County contains unzoned property, which is “not subject to the requirements of the Use Table” but remains subject to the Land Development Regulations.
When Sewer Blocks a Septic Permit
R.61-56 § 300 is blunt: “Permits for new onsite wastewater systems shall not be issued where a wastewater treatment facility is accessible for connection,” and the same bar applies to repairing or replacing a failing system.
But the state sets no distance. “Accessible” is defined only negatively — “where annexation or easements to cross adjacent property are required to connect… the wastewater treatment facility shall not be considered accessible.” So if connecting would require you to be annexed, or to cross a neighbor’s land, sewer is not accessible and your septic permit stands. Every mandatory-connection distance in South Carolina is local.
Sewer here has an unusual legal shape worth understanding. County Code § 20-31(a) recognizes the Western Carolina Regional Sewer Authority — the statutory body behind ReWa — as holding “the authority to issue permits for the siting and location of all public and private sewerage treatment facilities” across “all those portions of Greenville County not included within” the older district boundaries, under § 208 of the federal Clean Water Act. § 20-31(b) carves out the Greer Commission of Public Works, which holds that authority in its own area. So which body governs sewer at your address depends on where you are. ReWa: 864.299.4000, staffed 24 hours a day, seven days a week; its Engineering Division locates sewer lines and grants connection approval. ReWa’s own pages disagree on network length — one says “nearly 300 miles of trunk lines,” another “more than 350 miles of pipes” — so we are not quoting a figure.
What We Could Not Confirm
The SCDES field office address for Greenville County. The county publishes one, but its street and ZIP code are inconsistent, and the Greenville office does not appear in the SCDES office directory we were able to verify. Not published here on purpose.
Land Development Regulations Article 7 §§ 7.1–7.3 verbatim — the likely home of any connection distance.
ReWa’s customer count (not published anywhere we could reach), the 300 vs 350 miles conflict, whether any septic-to-sewer conversion program exists here, and any count or percentage of Greenville County homes on septic at any vintage.
Where Greenville County Sits
Greenville is South Carolina’s largest county by population, running from the Blue Ridge escarpment down through the city and out to Greer and Simpsonville. A century-old regional sewer authority covers most of the developed area, which is precisely why the county was able to hand septic permitting back to the state and stop handling it.
Nearby counties we cover: Newberry County · Lexington County. All of them run through the same state permit and the same $150 fee — what differs is the local ordinance layer, compared on our South Carolina septic permits by county page.
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