{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/water-quality/02148/","name":"Water quality for ZIP 02148 — Malden, MA","description":"Water quality data for ZIP 02148 (Malden, Massachusetts), 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":"02148","city":"Malden","state":"MA","stateFull":"Massachusetts","county":"Middlesex County (MA)","countySlug":"middlesex-county","geo":{"latitude":42.4251,"longitude":-71.0662}},"stateContext":{"topConcern":"Lead pipes, coastal flood, older housing","narrative":"Massachusetts has dense lead-service-line obligations under LCRR in Boston, Lowell, Worcester, Springfield. Coastal AE/VE zones along the South Shore + Cape. Older housing stock means lead-paint risk overlaps with LSL risk."},"radonZone":null,"airQuality":null,"datePublished":"2026-04-24","dateModified":"2026-09-07","canonicalUrl":"https://zipradar.org/topic/water-quality/02148/","zipDashboardUrl":"https://zipradar.org/zip/02148/","zipDashboardApiUrl":"https://zipradar.org/api/zip/02148/","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/02148/"}}