North Carolina county well guide

Well Water in Durham County, NC: Testing, Contractors and Rules

About 10,183 households in Durham County, 9% of the county, rely on a private well. Nobody tests that water unless the owner does.

Labs within 40 milesLicensed contractors
9%of households on a private well
Share on wells, county vs state
Durham County9%
North Carolina average24%
10licensed contractors serve the county
6 mito the nearest certified lab, Rti International
Nostatewide test required when a home is sold

About 10,183 homes in Durham County are on a private well. That is 9% of households, enough that every township has well owners and few of them have had the water tested recently.

Local rules for wells in Durham County

In North Carolina the county is the front door: Durham County Environmental Health permits the well, requires the 30-day test on a new well, and will collect a sample for the State Laboratory of Public Health for a county fee. The state’s testing schedule is in the cards below.

At a glance

Water test for a new wellRequired

Every newly constructed private well must be tested within 30 days of completion by the State Laboratory of Public Health or a certified lab before it is used for drinking water.

Water test when a home is soldNot required statewide

No statewide requirement at sale. Lenders (FHA, VA, USDA) usually require a test.

What the state recommends

Every year: total and fecal coliform bacteria plus a wellhead inspection. Every 2 years: heavy metals, nitrate and nitrite, lead and copper. Every 5 years: pesticides and volatile organic compounds. Retest after repairs, flooding, a change in water quality, or when an infant or pregnant person is in the home.

Free or low-cost testingAvailable

County health departments collect samples and send them to the State Laboratory of Public Health at set fees that vary by county (often $30 to $100 per panel).

Getting your water tested near Durham County

The nearest certified lab is Onterris Laboratories, LLC – Durham in Reymet Road Durham, in the county. There are 8 more within 40 miles, listed below with what each tests for.

8 certified labs within 40 miles

Licensed well contractors serving Durham County

Licensed help in Durham County includes Acme Well Company, Inc. and Brown Brothers Plumbing & Heating Co Inc. and 7 others. Every listing was matched to the North Carolina license list; the “verify” link on each profile opens the state lookup.

Well depth and water chemistry

Well depth and water chemistry in Durham County follow the rock underneath it. Depth varies across the county; the state well record search shows logs for nearby wells.

Typical well depth

Varies by location. Check the state well record search for logs of nearby wells.

Contaminants to test for
  • Lead
  • Arsenic
  • Iron
  • Manganese
  • Low pH (corrosive water)
  • Coliform bacteria
  • Radon

Neighboring counties: Orange County, Wake County, Granville County, Chatham County.

What well work costs in Durham County

Basic bacteria and nitrate test$25 to $75lab fee, homeowner sample
Full panel lab test$150 to $400metals, VOCs, radiologicals
Well inspection$250 to $550flow, pressure, visual, water test
Submersible pump replacement$1,200 to $4,500parts and labor
Pressure tank replacement$400 to $1,200installed
Whole-house treatment system$800 to $6,000softener, iron filter, UV, RO
New well drilled$5,500 to $25,000about $25 to $65 per foot
Shock chlorination$80 to $300or about $20 as a DIY job

National ranges from published 2025 to 2026 contractor pricing. Local quotes vary with depth, access and materials.

Questions Durham County well owners ask

How many homes in Durham County are on a well?

About 10,183, or 9% of households, based on Census housing data and state well surveys. The share is highest outside the towns with public water.

Where is the closest certified lab to Durham County?

Onterris Laboratories, LLC – Durham in Reymet Road Durham, inside the county. Call first to ask whether they accept homeowner samples.

Do I need a permit to drill a well in Durham County?

Yes. County Environmental Health issues the permit, and the new well must be tested within 30 days of completion.

What does a well test cost near Durham County?

A bacteria and nitrate test runs $25 to $75 at most certified labs; a full panel with metals is $150 to $400. County-collected samples sent to the State Laboratory are often cheaper.