{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/water-quality/87544/","name":"Water quality for ZIP 87544 — Los Alamos, NM","description":"Water quality data for ZIP 87544 (Los Alamos, New Mexico), 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":"87544","city":"Los Alamos","state":"NM","stateFull":"New Mexico","county":"Los Alamos County","countySlug":"los-alamos-county","geo":{"latitude":35.88,"longitude":-106.3031}},"stateContext":{"topConcern":"Radon, wildfire, water-supply scarcity","narrative":"New Mexico has Zone 1 radon coverage statewide. Wildfire risk in northern + central forests; the 2022 Hermits Peak/Calf Canyon Fire was the largest in NM history. Water-supply scarcity drives compliance pressure on small rural EPA SDWIS systems."},"radonZone":null,"airQuality":null,"waterQuality":{"primary":{"pwsid":"NM3500115","name":"LOS ALAMOS MUNICIPAL WATER SYSTEM","populationServed":25000,"waterSource":"GW","violations":{"windowYears":3,"total":0,"healthBased":0,"latest":null}},"systemCount":1,"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/87544/","zipDashboardUrl":"https://zipradar.org/zip/87544/","zipDashboardApiUrl":"https://zipradar.org/api/zip/87544","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/87544/"}}