New construction, additions and failed systems all need a properly designed and installed septic system. Getting it right from the start matters, especially with the sandy soils, low-lying lots and high water tables common in coastal North Carolina. We connect property owners in New Hanover, Pender and Brunswick counties with local professionals to plan the next step.
When You May Need a New System
New construction on a lot without public sewer
Home additions that add bedrooms or increase water use
Replacing a failed system that can no longer be repaired — including cases where a drain field has failed
Upgrading an older system that no longer fits how the property is used
What the Process Usually Looks Like
Every project is different, but new and replacement septic systems in North Carolina generally move through these steps:
Site and soil evaluation. In most cases, the county environmental health office evaluates the lot and soil and, if the site is suitable, issues an Improvement Permit. North Carolina also allows some evaluations and designs to be handled by licensed soil scientists or engineers under alternative permitting options.
Design and construction approval. The system is designed for the site, and a Construction Authorization (or the equivalent approval under an alternative option) is issued before work begins.
Installation. The tank, distribution components and drain field are installed according to the permit.
Final inspection and approval. The installed system is inspected and approved before it is put into use.
Your county environmental health office can explain which options apply to your property.
A local septic professional can walk you through each step so you know what to expect.
System Types
The right system depends on your soil, lot and water table. Options may include conventional gravity systems or alternative systems, such as those using pumps or other treatment components, when site conditions require them.
Planning Tips
Talk about septic early in your building or renovation plans
Keep the drain field area free of driveways, structures and heavy equipment