UNC Superfund Research Program

Well Water Contaminants in North Carolina

The resources below display well water sampling data collected by the NC Department of Health and Human Services (NC DHHS) from October 1998 - May 2019. Search by contaminant or by county to view the concentrations of heavy metals that have been detected in private well water in each of North Carolina's 100 counties.

View by county | Interactive map

View by County

Select a county to view a table of the private well water testing results.

Alamance	Chowan	Guilford	Mitchell	Rutherford
Alexander	Clay	Halifax	Montgomery	Sampson
Alleghany	Cleveland	Harnett	Moore	Scotland
Anson	Columbus	Haywood	Nash	Stanly
Ashe	Craven	Henderson	New Hanover	Stokes
Avery	Cumberland	Hertford	Northampton	Surry
Beaufort	Currituck	Hoke	Onslow	Swain
Bertie	Dare	Hyde	Orange	Transylvania
Bladen	Davidson	Iredell	Pamlico	Tyrrell
Brunswick	Davie	Jackson	Pasquotank	Union
Buncombe	Duplin	Johnston	Pender	Vance
Burke	Durham	Jones	Perquimans	Wake
Cabarrus	Edgecombe	Lee	Person	Warren
Caldwell	Forsyth	Lenoir	Pitt	Washington
Camden	Franklin	Lincoln	Polk	Watauga
Carteret	Gaston	Macon	Randolph	Wayne
Caswell	Gates	Madison	Richmond	Wilkes
Catawba	Graham	Martin	Robeson	Wilson
Chatham	Granville	McDowell	Rockingham	Yadkin
Cherokee	Greene	Mecklenburg	Rowan	Yancey

Explore Further

For additional information on arsenic, cadmium, lead, and manganese, check out NC ENVIROSCAN. This mapping tool allows users to visualize trends, including sociodemographic information, environmental justice indicators, and health outcomes, across NC.

Click here to explore NC ENVIROSCAN

Data source: Eaves LA, Keil AP, Rager JE, George A, Fry RC. Analysis of the novel NCWELL database highlights two decades of co-occurrence of toxic metals in North Carolina private well water: Public health and environmental justice implications. Sci Total Environ. 2022 Mar 15;812:151479. doi: 10.1016/j.scitotenv.2021.151479. Epub 2021 Nov 9. PMID: 34767890.