Informing Private Well Owners

What’s in my well water?

More than 3 million North Carolinians rely on groundwater as their primary drinking water source.63

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Explore resources for testing your well water, understanding your results, and navigating a sample well-testing results form. Find out about how well water contamination can potentially impact your health and view the distribution of contaminants across North Carolina.

Search by county

Find out more about contaminants and view the average concentration of contaminants detected in private wells in all NC counties.

Search by contaminant

View maps of the average concentration of contaminants detected in private wells in each county.

Private wells

Learn more about well construction and maintenance, find out how to test your well water, and access resources for understanding your results.

Read more about Superfund sites and permitted toxic chemical releases in North Carolina. Explore the distribution of these sites by viewing the county-level maps or read more about the nation’s hazardous waste programs by selecting a link on the left.

This project was funded by an ARRA supplement from the National Institute of Environmental Health Sciences (#P42ES005948) 2009-2011.