{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/water-quality/06511/","name":"Water quality for ZIP 06511 — New Haven, CT","description":"Water quality data for ZIP 06511 (New Haven, Connecticut), 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":"06511","city":"New Haven","state":"CT","stateFull":"Connecticut","county":"New Haven County","countySlug":"new-haven-county","geo":{"latitude":41.3083,"longitude":-72.9279}},"stateContext":{"topConcern":"Lead service lines, coastal flood","narrative":"Connecticut's older housing stock carries elevated LCRR-flagged lead service line risk in cities like Hartford, Bridgeport, New Haven. Coastal Long Island Sound communities sit in FEMA AE/VE zones with Risk Rating 2.0 premium pressure. School data via NCES splits between large municipal districts and small magnet/charter networks."},"radonZone":null,"airQuality":null,"waterQuality":{"primary":{"pwsid":"CT0930011","name":"REGIONAL WATER AUTHORITY","populationServed":418900,"waterSource":"SW","violations":{"windowYears":3,"total":0,"healthBased":0,"latest":null}},"systemCount":31,"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/06511/","zipDashboardUrl":"https://zipradar.org/zip/06511/","zipDashboardApiUrl":"https://zipradar.org/api/zip/06511/","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/06511/"}}