Ward County, ND
drinking water quality
68,427 residents · 14 public water systems · 14 ZIP codes
EPA sampled 2 of 14 public water systems here, together serving about 56,491 people. EPA detected PFPeA at 3 ng/L. EPA has not set a drinking water limit for PFPeA, so there is no figure to compare it against. Last sampled 7/10/2023.
What this means
PFAS are industrial chemicals that EPA describes as breaking down only very slowly in the environment. In April 2024 EPA set the first enforceable national limits: 4 ng/L for PFOA and PFOS, 10 ng/L for PFHxS, PFNA and GenX.
These figures are county-level and come from EPA’s sampling of public water systems. They describe the worst result found in the county, not what comes out of any particular tap — that depends on which system serves the address, and on the plumbing in the building. A private well is not covered by this programme at all.
ZIP codes in Ward County
58701 · 58703 · 58704 · 58705 · 58707 · 58718 · 58722 · 58733 · 58734 · 58735 · 58746 · 58756 · 58781 · 58785
Readings are county-level, so every ZIP here shares the figure above. Search your ZIP on the map to see it in context.