Wake County Well Water Testing
About 137,401 Wake County residents drew household water from their own wells in 2015, according to USGS county water-use estimates, or 13.4% of the county. That is the largest private-well population of any North Carolina county we cover, almost all of it outside the municipal water lines.
The county runs its own well testing program, and its prices are the lowest of the county programs on this site: Wake County lists a coliform bacteria test at $25 and a full inorganic panel at $50 when you collect the sample yourself. The results that come back most often above a standard here are iron, manganese, low pH, lead and, on certain rock units, uranium and radon.
Permits
Step 1: Order through Wake County Onsite Water Protection. The county fee list sets a $50 trip fee whenever staff collect the sample, $25 for coliform bacteria, $50 for the full inorganic panel, $20 for a single inorganic analyte and $25 for nitrate/nitrite.
Step 2: First-time owners, or anyone more than five years past a test, should ask for the First Timer's Package, which Wake County lists at $175 (bacteria, inorganics, volatile organic compounds and pesticides). The Rads Package is $140 and adds uranium, radon in water, gross alpha and an air radon kit.
Step 3: Bacteria and inorganic bottles can be picked up and dropped off at the Wake County Water Quality Lab, Room 2051 of the Public Health Center at 200 Swinburne St., Raleigh, weekdays 9 a.m. to 4 p.m.; the lab does not take bacteria samples the day before a holiday (919-250-4437).
Step 4: Building on an existing well? The county charges $125 to approve its use for new construction, which covers state-regulated bacteria and inorganic tests; a new well permit is $800 and includes the county's sampling and lab work. NC G.S. 87-97 is the statute behind that new-well testing.
Step 5: Read results against EPA limits, then retest after any treatment is installed so the installer's claim is checked by the same lab.
Local conditions
Iron and manganese are the everyday complaints. NC DHHS State Laboratory records for 1998-2010 show iron above EPA's 0.3 mg/L secondary limit in 612 of 2,560 Wake wells (23.91%) and manganese above the secondary limit in 583 of 2,570 (22.68%).
Low pH is the third: the same DHHS data put 553 of 2,578 samples (21.45%) below pH 6.5. Acidic water picks up metal from household plumbing, which is one reason lead turns up as well: 172 of 3,188 Wake samples (5.40%) were above 15 micrograms per liter in that DHHS record.
Uranium is the Wake-specific result. The UNC Superfund Research Program's NCWELL tables (1998-2019) show 40 of 411 tested wells (9.73%) above EPA's uranium limit. The Wake County well regulations add gross alpha testing for new wells drilled into the Rolesville granite, Raleigh gneiss, Falls leucogneiss and other listed rock units in the north and east of the county.
Radon in water follows the same granite. North Carolina's Radon-in-Water Advisory Committee reported a median of 6,580 pCi/L for wells on the Rolesville and related granites across Vance, Franklin and central-eastern Wake, with 73% of those wells above 4,000 pCi/L, the proposed alternate EPA level the committee used.
What drives local prices
- Which result you are treating: HomeGuide's published installed ranges are $1,000-$3,500 for an iron or manganese filter, $800-$2,500 for a calcite neutralizer, $1,200-$3,800 for a softener and $300-$950 for an under-sink reverse osmosis unit for uranium or lead at the kitchen tap.
- Whole-house versus point-of-use: lead and uranium are drinking-water problems, so a single-tap RO unit priced from $300 (HomeGuide) often answers them, while iron and pH need a whole-house unit at the well.
- Lab work before and after: the county's $50 inorganic panel or $140 Rads Package is cheap next to equipment, and it is the result an installer should size the system from.
- Local permits only apply if the well itself is repaired or replaced; treatment equipment on the house side does not need a county well permit.
Common jobs
- Calcite or soda-ash neutralizer ahead of an iron filter on acidic granite-belt wells
- Under-sink reverse osmosis for uranium or lead at the kitchen tap
- Air-injection iron and manganese filters for orange and black staining
- Radon-in-water aeration where both air and water radon tests come back high
- Retesting through the county lab after installation
Service area
Most well households sit outside municipal water service: north along US 1 and NC 98 toward Wake Forest and Rolesville, east along US 64 and US 264 toward Wendell and Zebulon, and south along US 401 toward Fuquay-Varina and Willow Spring.
Inside the I-540 loop, nearly every home is on city water, so well calls there are mostly older rural lots and horse properties.
Communities: Raleigh (outlying areas), Wake Forest, Rolesville, Zebulon, Wendell, Knightdale, Fuquay-Varina, Holly Springs, Willow Spring, New Hill, Garner (rural), Apex (rural)
If it is an emergency
A positive coliform result or a sudden change in color or smell after flooding calls for disinfection and a retest before drinking the water. Call Wake County Onsite Water Protection for guidance, then compare quotes from independent local treatment pros.
Questions about Wake County
How much does Wake County charge to test well water?
The county fee list shows $25 for coliform bacteria and $50 for a full inorganic panel if you collect the sample yourself. Add a $50 trip fee if county staff collect it. Wake County lists the First Timer's Package at $175 and the Rads Package at $140.
Is uranium a problem in Wake County wells?
In parts of the county. UNC's NCWELL tables show 9.73% of 411 tested Wake wells above EPA's uranium limit, and the county requires gross alpha testing for new wells on the Rolesville granite and other listed rock units. A Rads Package is the way to find out for your well.
Why is my Wake County water staining orange or black?
Iron (orange) and manganese (black). NC DHHS data show roughly 23% of tested Wake wells above the secondary limit for each. An inorganic panel tells an installer which filter and how large.
Do I need a softener in Wake County?
Often not. Hardness is not the common problem here; acidity, iron and manganese are. Test first, because a softener alone does not fix low pH, uranium or lead.
Where do I drop off a Wake County water sample?
At the Wake County Water Quality Lab, second floor of the Public Health Center at 200 Swinburne St. in Raleigh, weekdays 9 a.m. to 4 p.m.
Sources
- USGS: Estimated Use of Water in the United States, county-level data for 2015 (Dieter et al. 2018)
- Wake County: Available well water tests and fees
- Wake County: Well water testing
- Wake County: Water Quality Lab
- Wake County: Well permits, fees and approvals
- Wake County: Well construction and groundwater protection regulations (Dec. 2024)
- NC G.S. 87-97: Private drinking water well permits, inspection and testing
- NC DHHS: Well Water and Health, Wake County (State Laboratory results 1998-2010)
- UNC Superfund Research Program: Well Water Contaminants in Wake County (NCWELL 1998-2019)
- NC Radon-in-Water Advisory Committee: Final Report (March 2011)
- EPA: National Primary Drinking Water Regulations
- EPA: Secondary Drinking Water Standards
- HomeGuide: well water filtration, water softener and reverse osmosis cost guides (2025-2026; cited as text)
Nearby counties
Related
Fees and rules change; confirm with the county office before you order. Compare installed prices in the treatment system cost guide, or run the treatment selector with your lab results.