{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/water-quality/65201/","name":"Water quality for ZIP 65201 — Columbia (MO), MO","description":"Water quality data for ZIP 65201 (Columbia (MO), Missouri), 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 largest community water system on record for the ZIP's county, its PWSID and population served, and its health-based and total violations in the last 3 years. Lead and copper sampling results are not shown; your utility's annual water quality report (CCR) has them.","limitations":"Where a county has several water systems, zipradar shows the one serving the most people and says how many others are on record; yours may be a different one. Private well water is not covered."},"place":{"zip":"65201","city":"Columbia (MO)","state":"MO","stateFull":"Missouri","county":"Boone County (MO)","countySlug":"boone-county","geo":{"latitude":38.9517,"longitude":-92.3341}},"stateContext":{"topConcern":"Radon, flooding (Missouri/Mississippi), tornadoes","narrative":"Missouri has Zone 1 radon across most of the state. Major river FEMA AE zones along the Missouri + Mississippi affect St. Louis, Hannibal, Cape Girardeau. Tornado risk peaks April-May."},"radonZone":null,"airQuality":null,"waterQuality":{"primary":{"pwsid":"MO3010181","name":"CITY OF COLUMBIA UTILITIES","populationServed":126254,"waterSource":"GW","violations":{"windowYears":3,"total":1,"healthBased":0,"latest":{"date":"2025-07-02","healthBased":false,"category":"RPT","contaminant":"5200"}}},"systemCount":11,"caveat":"This is federal SDWIS reporting data for the community water system serving this county, not an address-level test result. Private well water is never covered by SDWIS. Where a county is served by multiple systems, this shows the one serving the most people."},"datePublished":"2026-04-24","dateModified":"2026-09-24","canonicalUrl":"https://zipradar.org/topic/water-quality/65201/","zipDashboardUrl":"https://zipradar.org/zip/65201/","zipDashboardApiUrl":"https://zipradar.org/api/zip/65201/","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/65201/"}}