Tested Water

Arsenic in West Virginia well water, by county

Arsenic is worth checking in 5 of the 13 West Virginia counties with 10 or more tested wells, and rare in the rest. A county's share tells you how likely a problem is nearby. Only a test of your own well tells you what's in it.

How West Virginia compares with the rest of the country

Across West Virginia, about 1 in 19 tested wells had arsenic over the EPA limit of 10 µg/L (21 of 396). Across all tested wells in the US it's about 1 in 9. That's less often than in the country as a whole. Counties still differ, so check yours below.

Why it matters: Drinking it for years raises the risk of skin, bladder and lung cancer.

Arsenic dissolves out of certain rocks and old sediments, so it can be high even where nobody has polluted anything.

Arsenic in tested wells, county by county

Share of each county's tested wells with at least one result over the EPA limit of 10 µg/L. Counties need 10 or more tested wells to be listed. Widespread means 15% or more, worth checking 5 to 15%, rare under 5%.

CountyWells testedWells over the limitLevel
Greenbrier County 10
10% 1 of 10
Worth checking
Mineral County 10
10% 1 of 10
Worth checking
Kanawha County 15
7% 1 of 15
Worth checking
Hampshire County 16
6% 1 of 16
Worth checking
Preston County 16
6% 1 of 16
Worth checking
Jefferson County 35
0% 0 of 35
Rare
Morgan County 33
0% 0 of 33
Rare
Wyoming County 17
0% 0 of 17
Rare
Fayette County 15
0% 0 of 15
Rare
Pocahontas County 13
0% 0 of 13
Rare
Boone County 10
0% 0 of 10
Rare
Mercer County 10
0% 0 of 10
Rare
Raleigh County 10
0% 0 of 10
Rare

37 more West Virginia counties have 1 to 9 tested wells for arsenic, too few to rate.

Download this table (CSV) · Free to reuse under CC BY 4.0

Where to get your well tested for arsenic in West Virginia

1

Your county health department

West Virginia doesn't run a statewide free testing program that we know of. Some county health departments test wells or sell kits, so call yours first.

West Virginia's private well page
3

A mail-in kit

Fill the bottles at your kitchen tap and mail them back. We mark the kits that include arsenic.

Compare kits

Keep reading about wells in West Virginia

Questions people ask about arsenic in West Virginia

Is there arsenic in West Virginia well water?

Arsenic is worth checking in 5 of the 13 West Virginia counties with 10 or more tested wells, and rare in the rest. Across West Virginia, about 1 in 19 tested wells had arsenic over the EPA limit of 10 µg/L (21 of 396). Across all tested wells in the US it's about 1 in 9. That's less often than in the country as a whole. Counties still differ, so check yours below.

Where can I get my well tested for arsenic in West Virginia?

Use a lab certified by West Virginia for drinking water, or a mail-in kit that includes arsenic from a certified lab. Some county health departments test wells too, so call yours first.

See West Virginia's list of certified labs, or compare mail-in kits.

Where these numbers come from

  • Lab tests: Water Quality Portal (USGS and EPA), well samples since 2000. A well counts as over if any of its tests was over the EPA limit of 10 µg/L. Wells tested for studies and monitoring, not a random sample of homes.
  • Likely overstated: our own check of who tested the wells, when and where. How we check.
  • State programs and links: Department of Health, Office of Environmental Health Services, with local health departments.