Water quality in Cannon Ball, North Dakota
Cannon Ball is in Sioux County. 0 active public water systems serve the county; 0 had an EPA violation in the past three years.
No active community water systems are recorded for Sioux County. Homes there are likely on private wells or served from a neighbouring county. See the county page for non-community systems.
About this data
Water systems are matched to Sioux County, largest first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The North Dakota records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.