North Carolina Well Drilling: Permits, Testing, Costs

Local Help in North Carolina, NC

In North Carolina, every new private drinking-water well needs a permit from the county health department before drilling, and the county must test the water once it's finished. That's state law under G.S. 87-97, and it's carried out county by county, so fees and paperwork differ.

Construction itself follows one statewide rulebook, 15A NCAC 02C, and the person drilling must hold a well contractor certification under 15A NCAC 27. The four county pages below show how those state rules play out with local fees and local rock.

North Carolina Service Details

What providers in this area actually see: coverage, common jobs, local pricing factors, and rules worth knowing.

Service Area Notes

County pages on this site: Franklin County, Johnston County, Union County and Wake County. Each lists its health-department fee, testing options and local depth or geology data.
Wake and Franklin sit in the Piedmont around Raleigh, Union is southeast of Charlotte in the Carolina terrane (slate belt), and Johnston lies southeast of Raleigh where NC Geological Survey bedrock mapping still applies to well siting.

Common Jobs in North Carolina

New private wells, which require a county permit and a post-construction water test under G.S. 87-97
Replacement wells where yield has dropped, common in fractured rock where USGS found yields ranging from 0 to 150 gpm in Wake County
Well repair and abandonment permits (no charge in Johnston County)
Optional testing for naturally occurring uranium, radon and arsenic, which NC DHHS and county programs flag in parts of the Piedmont

What Drives Pricing Here

Method: our calculator's published $25–$65 per foot, plus about $1,500–$4,500 for pump, tank and hookup, applied to the median depth for each county with data. County permit fees are added on each county page.
Franklin County (USGS inventory median about 110 ft): about $4,250–$11,650 before the $400 county permit.
Casing is part of the bill: the median Wake County well in the USGS study had 68 feet of casing through weathered rock before open hole in bedrock.
Wake County (USGS study median 265 ft, 68 ft of casing): about $8,125–$21,725 before county fees.
Johnston County charges a $400 private well permit and Union County $500, so permit cost alone varies by $100 across our NC pages.
Yield, not just depth, drives cost in rock: USGS found Wake County yields tended to climb with depth only to about 200 feet, so drilling deeper doesn't always buy more water.

Permits & Local Rules

Step 1: Apply to your county environmental health office for a well permit with a site plan. Fees on our pages: $400 in Franklin and Johnston counties, $500 in Union County.
Step 2: Hire a contractor certified under 15A NCAC 27. Some counties add their own rules; Wake County requires annual registration and a $10,000 contractor bond.
Step 3: Site the well to 15A NCAC 02C .0107 setbacks, including 50 ft from a septic tank and drainfield for a single-family well.
Step 4: The county inspects construction (grouting) before the well is finished.
Step 5: The county samples the new well's water as required by G.S. 87-97 before it's put into use. In Franklin County, that first sample covers bacteria and 17 inorganic parameters at no charge.
Step 6: Keep the well permitted for life: repairs and abandonment also need county permits, which Franklin County issues free.

Geology & Water Table Notes

Aquifer overview: most of our NC counties draw from fractured crystalline or metamorphic rock, not a continuous sand aquifer. Water comes from fractures, so two neighbors' wells can differ a lot.
In Wake County, USGS found the lowest yields in the Triassic basin rocks on the west side, east to the Jonesboro fault, and the highest in metavolcanic rock.
Union County's Carolina terrane rocks are linked to arsenic in well water in an NC Division of Water Quality assessment.
Bedrock on Wake County's western side is Triassic sedimentary rock, while groundwater along the county's metavolcanic belt gave the best yields in the USGS study, which drew on more than 7,500 wells with a median yield of 10 gpm.
Groundwater in Union County's slate belt (Carolina terrane) comes from fractured metavolcanic and metasedimentary rock, the setting the NC Division of Water Quality studied for arsenic.
Uranium and radon occur naturally in some Piedmont granites, according to NC DHHS, so many counties offer radiological tests (Franklin County: $100 each, or a $225 package).

Neighborhoods & Suburbs Served

Franklin County · Johnston County · Union County · Wake County

Emergency Response Expectations

If a well loses pressure or water goes cloudy after a storm, stop drinking it and call your county environmental health office about testing.

North Carolina FAQs

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

Yes. G.S. 87-97 requires a county permit before a private drinking-water well is built. On our pages the fee is $400 in Franklin and Johnston counties and $500 in Union County.

Is new-well water testing required in NC?

Yes. The same law requires the county to test a new private well's water. Extra tests, such as uranium or radon, are usually optional and priced by the county.

How deep are wells in North Carolina's Piedmont?

On our pages, the USGS inventory median is about 110 ft in Franklin County and the USGS study median is 265 ft in Wake County. Rock fractures, not a set depth, decide where the water is.

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

At least 50 ft from a septic tank and drainfield (including the repair area) for a well serving a single-family home, under Session Law 2018-65, which overrides the 100-ft distance in 15A NCAC 02C .0107. A saprolite system needs 100 ft.

Who can drill a well in North Carolina?

Only a contractor certified under 15A NCAC 27. Some counties add requirements: Wake County makes well contractors register with the county every year.

Do I need a permit to repair or abandon a well?

Counties issue repair and abandonment permits as well. Johnston County, for example, lists no charge for them, while a well reinspection there is $50.

What does a new well cost in NC?

At our calculator's rate, about $4,250–$11,650 for a 110-ft well and $8,125–$21,725 for a 265-ft well, plus the county permit.