Sourced from the Durham County Environmental Health published fee schedule, the county’s On Site Water Protection and septic records pages, Wake County’s published wastewater fees, and 15A NCAC 18E — last checked August 2026.
North Carolina Septic Guide — Free Tool
Which Septic Permit Do You Actually Need?
North Carolina uses a three-permit sequence that most states don’t. Homeowners regularly assume “a septic permit” is one document, then discover partway through that it’s three, in order, and you can’t skip any of them.
Directional guidance only. Your county Local Health Department administers permitting and makes the actual determination. Requirements described here come from 15A NCAC 18E (effective January 1, 2024) and N.C. General Statutes Chapter 130A, Article 11.
What Durham County Charges
These are the amounts Durham County Environmental Health publishes. Every one of them is marked non-refundable, which matters more than it sounds: if your soil evaluation comes back unsuitable, the Improvement Permit fee does not come back with it.
| Permit or service | Durham County fee |
|---|---|
| Application for Improvement Permit (two-acre limit) | $250 |
| Construction Authorization, Type I and II (conventional) | $200 |
| Construction Authorization, Type III (pump) | $350 |
| Construction Authorization, Type IV, V and VI (advanced) | $525 |
| Improvement Permit revisit | $100 |
| Wastewater system reconnection permit | $200 |
| Type V and VI operational permit renewal (every five years) | $50 |
| Well permit | $425 |
| Well repair permit | No fee |
| Inorganic water sample, including nitrate and nitrite | $135 |
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The Two-Acre Line Is the One to Watch
Durham’s Improvement Permit fee is written as “Application for Improvement Permit (2 acre limit)”. That parenthesis is doing real work.
The county’s schedule adds that where a tract exceeds two acres and a professional soil evaluation has already been done, there is a $200 charge to evaluate the consultant-specified area. So on a larger parcel you are looking at a different arithmetic than the headline $250, and you may be paying a private soil scientist on top of that before the county looks at anything.
If your lot is under two acres, the $250 is the number. If it is over, ask the county specifically what your tract will be charged before you assume.
Durham Against Wake, Side by Side
Both counties run the same state rules under 15A NCAC 18E. Their fee structures are built on completely different logic.
| Permit | Durham | Wake |
|---|---|---|
| Improvement Permit | $250 (two-acre limit) | $400 |
| Construction Authorization, conventional | $200 | $400 |
| Conventional system, both permits | $450 | $800 |
| Construction Authorization, pump system | $350 | $400 |
| Pump system, both permits | $600 | $800 |
| Construction Authorization, advanced (Type IV to VI) | $525 | $400 |
| Advanced system, both permits | $775 | $800 |
Read down the bold rows and the story is clear. Durham charges by how hard your system is to review. Wake charges a flat rate whatever you build.
On good soil with a straightforward gravity system, Durham is $350 cheaper. On a site that needs an advanced Type IV, V or VI system, the difference collapses to $25 and the county line stops being worth thinking about. The soil decides, not the address.
Looking Up an Existing Durham Septic Record
Durham does not run a public online lookup for septic and well records the way some counties do. The county’s own instruction is that “Anyone can request a copy of Durham County septic and well records on file with the Durham County Environmental Health division.”
You email healthinspector@dconc.gov and include:
- Your name
- Your telephone number
- The site address
- The Parcel Number, if you have it
- The PIN Number, if you have it
The county does not publish a turnaround time or a records fee, so build in slack. If you are working to a closing date, send the request the week you list, not the week the inspection is due.
Two things worth knowing about what you may get back. Older properties may have thin records or none at all — permitting practice was not uniform decades ago. And a permit record tells you what was approved, not what is in the ground now or what condition it is in. Those are different questions and only one of them is answered by paperwork.
Septic Inspections for a Home Sale
This is where most Durham homeowners get caught out, and the answer is the same across North Carolina: the county health department is not who inspects your septic system for a real estate transaction.
Durham County Environmental Health does site evaluations for permits, construction inspections on new systems, well water testing and complaint investigations. A point-of-sale evaluation for a buyer or a lender is not on that list. That work is done by Certified Septic Inspectors operating privately.
So the sequence that actually works is: pull your county record first so you know what was permitted, then hire a certified inspector to look at what is physically there. Doing it in the other order means paying someone to find a tank you could have located from paperwork.
Who to Call
Durham County Environmental Health Division, Durham County Department of Public Health
- 414 East Main Street, Durham, NC 27701
- Phone 919-560-7800. The 919-560-7830 number is a fax, not a phone line.
- Email healthinspector@dconc.gov — this is also the address for records requests
The division runs On Site Water Protection alongside general inspections, public swimming pools and public health preparedness, so say “on-site water protection” or “septic” when you call to get to the right desk.
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