Well Water Nerd

Well water in Vance County, North Carolina

In Vance County, 3% of 387 private wells tested between 1998 and 2019 had lead above the North Carolina groundwater standard (15 ug/L), according to the NC State Laboratory of Public Health (NCWELL).

387 private wells tested 1998 to 2019 in state summaries. Data refreshed September 9, 2026.

What homeowner tests found

NCWELL private well summaries: private wells tested and reported to the state, 1998 to 2019. Shares are against the level the state applies to each contaminant, named in the last column; several are stricter than EPA.

ContaminantWells testedAbove state levelMedian95th pctHighestState level
Manganese38732%1,90050 ug/L
Iron22822%23,000300 ug/L
Lead3873%5715 ug/L
Copper228<1%2.21 mg/L
Arsenic3870%810 ug/L
Nitrate1570%7.210 mg/L
Nitrite1570%0.111 mg/L

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What this means

Among homeowners in Vance County who sent a sample to the state lab, the health-based limits most often exceeded were lead (3% of 387 wells) and copper (<1% of 228 wells). These are ordinary wells tested by their owners, so the shares are the best available picture of a typical well here, with one caveat: people test more often when they suspect a problem.

Manganese and iron exceed the state's advisory level in a sizable share of wells; these are mostly a taste, staining or diet issue rather than a toxicity one.

What to test for in Vance County

  • Volatile organic compounds (VOCs)245 leaking underground storage tank sites on record locally.
  • Manganese32% of 387 local wells tested were above the North Carolina groundwater standard.
  • Iron22% of 228 local wells tested were above the North Carolina groundwater standard.
  • Lead3% of 387 local wells tested were above the North Carolina groundwater standard.
  • Copper<1% of 228 local wells tested were above the North Carolina groundwater standard.
  • Coliform bacteriaRecommended for every private well, every year.
  • NitrateRecommended for every private well, especially near farms or septic systems.

Contamination sources on record in Vance County

NC DEQ records 245 leaking underground storage tank sites in Vance County, among 245 regulated sites in total. Groundwater does not follow property lines, so a well within a few hundred feet of one of these is worth testing for what that site could release.

245
leaking underground storage tank sitesGasoline and heating oil that leaked from tanks move through groundwater as benzene, MTBE and other volatile organic compounds.

Treatment that fits the local profile

Manganese
Oxidizing filter (greensand, birm) whole-house; Water softener (low levels); Point-of-use reverse osmosis
Iron
Oxidizing filter whole-house; Water softener (low levels); Aeration plus filtration

Get your Vance County water tested at home

A licensed local water treatment company tests your tap water in your home, walks you through the numbers, and quotes treatment only if something needs fixing. Free, about 30 minutes, no obligation. Tell us what you need and we match you with a company that serves Vance County.

What are you worried about?

The test is free and there is no obligation. Your details go only to the company named above, and we log the time and address of this request.

Common questions

How often should I test a private well in Vance County?

Test for bacteria and nitrate every year. Test once for arsenic, uranium, radon, fluoride, manganese and PFAS, then again every three to five years or after any change in taste, color, or plumbing.

Sources

  • NCWELL private well summaries: summaries for 7 contaminants in Vance County, up to 387 wells each. County summaries of private well tests run by the NC State Laboratory of Public Health, 1998 to 2019, compiled by the UNC Superfund Research Program (NCWELL database). Counts are tests, not distinct wells; since 2008 every new well is tested once, so most tests are unique wells. Shares are against the NC 2L groundwater standard where one exists (manganese 50 ug/L, lead 15, iron 300) and otherwise the EPA limit. Medians are not used because more than half of results sit at the reporting limit for most analytes. Retrieved September 9, 2026.
  • NC DEQ regulated sites: 245 regulated sites located in Vance County. Underground storage tank incidents from the North Carolina Department of Environmental Quality UST Section. Retrieved September 9, 2026.

Non-detects count as samples and are treated as zero when computing medians. Exactly at the limit counts as not above it. A sample belongs to the town containing the well's reported coordinates.