{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/water-quality/27709/","name":"Water quality for ZIP 27709 — Research Triangle Park, NC","description":"Water quality data for ZIP 27709 (Research Triangle Park, North Carolina), 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":"27709","city":"Research Triangle Park","state":"NC","stateFull":"North Carolina","county":"Durham County","countySlug":"durham-county","geo":{"latitude":35.8987,"longitude":-78.8627}},"stateContext":{"topConcern":"Hurricanes (coastal), PFAS in Cape Fear","narrative":"North Carolina's Outer Banks + coastal counties carry extensive FEMA VE/AE coverage. Wilmington + Cape Fear basin has documented PFAS contamination flagged in EPA SDWIS. Wildfire risk in western Appalachian counties."},"radonZone":null,"airQuality":null,"waterQuality":{"primary":{"pwsid":"NC0332010","name":"DURHAM, CITY OF","populationServed":333490,"waterSource":"SW","violations":{"windowYears":3,"total":0,"healthBased":0,"latest":null}},"systemCount":21,"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/27709/","zipDashboardUrl":"https://zipradar.org/zip/27709/","zipDashboardApiUrl":"https://zipradar.org/api/zip/27709/","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/27709/"}}