State

North Dakota: drinking water records

EPA lists 318 community water systems serving homes in North Dakota. 41 took part in EPA's national PFAS survey (UCMR 5), and 7 found at least one PFAS above the level laboratories can measure.

In focus318community water systems

Public records. Clearer context.

Counties

• Adams County 2 systems
• Barnes County 9 systems
• Benson County 4 systems
• Billings County 1 systems
• Bottineau County 8 systems
• Bowman County 3 systems
• Burke County 6 systems
• Burleigh County 10 systems
• Cass County 26 systems
• Cavalier County 5 systems
• Dickey County 8 systems
• Divide County 3 systems
• Dunn County 6 systems
• Eddy County 2 systems
• Emmons County 6 systems
• Foster County 3 systems
• Golden Valley County 3 systems
• Grand Forks County 8 systems
• Grant County 3 systems
• Griggs County 5 systems
• Hettinger County 3 systems
• Kidder County 3 systems
• LaMoure County 8 systems
• Logan County 2 systems
• McHenry County 6 systems
• McIntosh County 4 systems
• McKenzie County 5 systems
• McLean County 12 systems
• Mercer County 7 systems
• Morton County 12 systems
• Mountrail County 4 systems
• Nelson County 6 systems
• Oliver County 1 systems
• Pembina County 8 systems
• Pierce County 3 systems
• Ramsey County 3 systems
• Ransom County 5 systems
• Renville County 3 systems
• Richland County 13 systems
• Rolette County 5 systems
• Sargent County 5 systems
• Sheridan County 2 systems
• Sioux County 0 systems
• Slope County 1 systems
• Stark County 7 systems
• Steele County 3 systems
• Stutsman County 8 systems
• Towner County 3 systems
• Traill County 5 systems
• Walsh County 4 systems
• Ward County 14 systems
• Wells County 6 systems
• Williams County 11 systems

ZIP reports

Sources

EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.