{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/lead-pipes/59601/","name":"Lead pipes for ZIP 59601 — Helena, MT","description":"Lead pipes data for ZIP 59601 (Helena, Montana), sourced from EPA LCRR + RTI National Lead Pipe Map.","topic":{"slug":"lead-pipes","label":"Lead pipes","source":"EPA LCRR + RTI National Lead Pipe Map","sourceUrl":"https://dwmaps.rti.org","refreshCadence":"Quarterly as state primacy agencies report","summary":"Pages show the utility's reported count of lead, galvanized-requiring-replacement, and unknown-material lines, plus the state's reporting compliance status.","limitations":"Coverage rolls out state-by-state through 2026-2027 per the federal timeline. Utilities with incomplete inventories are flagged rather than omitted."},"place":{"zip":"59601","city":"Helena","state":"MT","stateFull":"Montana","county":"Lewis and Clark County","countySlug":"lewis-and-clark-county","geo":{"latitude":46.5891,"longitude":-112.0391}},"stateContext":{"topConcern":"Radon Zone 1, wildfire","narrative":"Montana is uniformly Zone 1 radon. Wildfire risk concentrates in the western mountains; the 2017 + 2021 + 2024 seasons all set records. EPA SDWIS shows compliance disparity between Helena/Missoula/Billings and small rural systems."},"datePublished":"2026-04-24","dateModified":"2026-05-13","canonicalUrl":"https://zipradar.org/topic/lead-pipes/59601/","zipDashboardUrl":"https://zipradar.org/zip/59601/","zipDashboardApiUrl":"https://zipradar.org/api/zip/59601/","primarySourceUrl":"https://dwmaps.rti.org","license":{"content":"CC-BY-4.0","attribution":"zipradar.org — https://zipradar.org/topic/lead-pipes/59601/"}}