Lead pipes · Pennsylvania
Lead pipes in Pennsylvania
Lead pipes (EPA LCRR + RTI National Lead Pipe Map) data for ZIP codes in Pennsylvania. Pick a ZIP below to dive into the lead pipes summary.
Last verified 2026-05-13 · methodology
What lands here
Pages show the utility's reported count of lead, galvanized-requiring-replacement, and unknown-material lines, plus the state's reporting compliance status.
Source & refresh
EPA LCRR + RTI National Lead Pipe Map. Refreshed quarterly as state primacy agencies report. Primary source →
Pennsylvania top concern
Radon, lead pipes (older cities)
Pennsylvania has Zone 1 radon across most of the state. LCRR lead-service-line obligations in Philadelphia, Pittsburgh, Reading, Allentown, Erie. EPA SDWIS small-system compliance varies.
See Pennsylvania state page for the full state-level rollup across all 12 dimensions.
Read more on lead pipes
Editorial deep-dives explaining the source data, its limits, and how to read it.
EPA Radon Zones — what 1, 2, and 3 mean and when you should test
EPA classifies every US county into Zone 1 (high), Zone 2 (moderate), or Zone 3 (low) for radon. Plain-English guide to the classifications and at-home testing.
Lead and Copper Rule 2024 — the federal lead-pipe inventory mandate
The 2024 Lead and Copper Rule Revisions (LCRR) require every US community water system to inventory and report lead service lines. Plain-English guide.
EPA SDWIS — how to read drinking-water violations and what they actually mean
Plain-English guide to EPA SDWIS drinking-water violations: health-based vs. monitoring vs. reporting violations, MCLs, and what triggers a public notice.
Radon and real estate — what disclosure laws and home tests actually require
What home sellers must disclose about radon by state, when home tests are required, and how to interpret radon-mitigation systems if a home you're buying has one.
10 Pennsylvania ZIPs
ZIP 19103
Philadelphia, PA
Lead pipes →
ZIP 15222
Pittsburgh, PA
Lead pipes →
ZIP 17101
Harrisburg, PA
Lead pipes →
ZIP 16801
State College, PA
Lead pipes →
ZIP 15217
Pittsburgh (Squirrel Hill), PA
Lead pipes →
ZIP 17013
Carlisle, PA
Lead pipes →
ZIP 19610
Wyomissing, PA
Lead pipes →
ZIP 15601
Greensburg (PA), PA
Lead pipes →
ZIP 17110
Harrisburg (PA), PA
Lead pipes →
ZIP 18103
Allentown (PA), PA
Lead pipes →