North Carolina Septic & Well Water Rules

North Carolina's On-Site Water Protection Branch (NCDHHS) oversees septic systems and private wells, while county health departments handle permits, inspections and testing.

This is a short state page. It covers only the facts we've verified from official sources so far.

Official lookups

NCDHHS: private well testing FAQs (find labs)

Septic & well permits

Contact your county health department's environmental health section for septic site evaluations, permits and inspections.
Under G.S. 87-97, every county must run a private well permitting, inspection and testing program. You need a permit to build or repair a well, though not to repair or replace the pump or tank.

Well testing

New private wells must be tested (through the State Laboratory of Public Health via your health department, or a state-certified lab) before use. Bacterial and chemical tests should be done within 30 days of completion.
Existing well owners can request testing from the local health department or a certified lab. Test after well repairs and after flooding.
The state setback between a well and a septic system is at least 100 feet, which can drop to 50 feet for a single-family well on a restricted lot (15A NCAC 02C .0107). Some counties are stricter.

Frequently asked questions

Do I need a permit to drill a well in North Carolina?

Yes. G.S. 87-97 requires a construction permit from the local health department.

How far must a well be from a septic system in NC?

At least 100 feet under state rules, or 50 feet minimum for single-family lots where 100 feet isn't possible.

Sources

Last checked: October 21, 2026