{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/water-quality/11733/","name":"Water quality for ZIP 11733 — Setauket, NY","description":"Water quality data for ZIP 11733 (Setauket, New York), 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":"11733","city":"Setauket","state":"NY","stateFull":"New York","county":"Suffolk County (NY)","countySlug":"suffolk-county","geo":{"latitude":40.932,"longitude":-73.0998}},"stateContext":{"topConcern":"Lead service lines (older cities), coastal flood","narrative":"New York has LCRR lead-service-line obligations in NYC (DEP), Buffalo, Rochester, Syracuse, Albany. Coastal AE/VE zones along NYC, Long Island, Hudson Valley. Catskill/Delaware watersheds give NYC water unusual quality but require ongoing EPA SDWIS oversight."},"radonZone":null,"airQuality":null,"waterQuality":{"primary":{"pwsid":"NY5110526","name":"SUFFOLK COUNTY WATER AUTHORITY","populationServed":1100000,"waterSource":"GW","violations":{"windowYears":3,"total":2,"healthBased":0,"latest":{"date":"2025-01-01","healthBased":false,"category":"MR","contaminant":"1028"}}},"systemCount":26,"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/11733/","zipDashboardUrl":"https://zipradar.org/zip/11733/","zipDashboardApiUrl":"https://zipradar.org/api/zip/11733/","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/11733/"}}