{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/water-quality/58103/","name":"Water quality for ZIP 58103 — Fargo (South), ND","description":"Water quality data for ZIP 58103 (Fargo (South), North Dakota), sourced from EPA SDWIS.","topic":{"slug":"water-quality","label":"Water quality","source":"EPA SDWIS","sourceUrl":"https://www.epa.gov/ground-water-and-drinking-water/safe-drinking-water-information-system-sdwis-federal-reporting","refreshCadence":"Quarterly (federal mandate)","summary":"Pages show the CWS serving the address, any health-based violations in the last 3 years, most recent lead and copper sampling result, and a link to the primary SDWIS record.","limitations":"Where a ZIP is served by multiple water systems, zipradar shows the dominant CWS by population served and lists alternates. Private well water is not covered."},"place":{"zip":"58103","city":"Fargo (South)","state":"ND","stateFull":"North Dakota","county":"Cass County (ND)","countySlug":"cass-county","geo":{"latitude":46.8208,"longitude":-96.8338}},"stateContext":{"topConcern":"Radon Zone 1, flooding (Red River), wind","narrative":"North Dakota is uniformly Zone 1 radon. Red River of the North FEMA AE zones affect Fargo, Grand Forks. Wind exposure is significant statewide."},"radonZone":null,"airQuality":null,"datePublished":"2026-04-24","dateModified":"2026-09-07","canonicalUrl":"https://zipradar.org/topic/water-quality/58103/","zipDashboardUrl":"https://zipradar.org/zip/58103/","zipDashboardApiUrl":"https://zipradar.org/api/zip/58103/","primarySourceUrl":"https://www.epa.gov/ground-water-and-drinking-water/safe-drinking-water-information-system-sdwis-federal-reporting","license":{"content":"CC-BY-4.0","attribution":"zipradar.org — https://zipradar.org/topic/water-quality/58103/"}}