Lead pipes in Lehigh County, Pennsylvania
How many lead pipes are in Lehigh County, PA?
Water systems based in Lehigh County reported 4,896 lead service lines, 6,186 galvanized lines that need replacing and 40,129 lines of unknown material to EPA (Q3 2026). Allentown has the most, with 10,391 lead and galvanized lines.
Free replacement program confirmed
Who pays in Pennsylvania
Pennsylvania's Act 120 lets PUC-regulated water utilities replace customer-owned lead service lines and recover the cost through rates, and it prohibits partial replacement. The PUC's 2022 rules require utilities to file replacement programs; Aqua Pennsylvania's was approved in April 2025 for up to 1,500 customer lines a year. City systems such as Philadelphia and Pittsburgh set their own terms.
Confirmed programs in Lehigh County
- Allentown: Free for qualifying owners, by phase.
Every Lehigh County water system with lead lines
Systems are grouped by the county EPA lists as their main service area. Some serve towns in neighboring counties too.
| Water system | Lead | Galv. | Unknown | Program |
|---|---|---|---|---|
| Allentown Lca Allentown Division | 4,552 | 5,839 | 20,894 | Free for eligible owners |
| Emmaus Emmaus Borough Public Water | 242 | 308 | 1,673 | Not confirmed |
| Slatington Borough Water Sys Slatington Borough Water Sys | 84 | 4 | 626 | Not confirmed |
| Catasauqua Mun Catasauqua Mun Water Works | 5 | 24 | 2,215 | Not confirmed |
| Coopersburg Mun Water Auth Coopersburg Mun Water Auth | 12 | 0 | 766 | Not confirmed |
| Macungie Borough Authority Macungie Borough Authority | 0 | 9 | 230 | Not confirmed |
| Lca Washington Township Div Lca Washington Township Div | 1 | 1 | 303 | Not confirmed |
| SWT Main System SWT Main System | 0 | 1 | 3,131 | Not confirmed |
| Lca Wlsa Central Division Lca Wlsa Central Division | 0 | 0 | 6,977 | Not confirmed |
| Salisbury TWP Salisbury TWP Water System | 0 | 0 | 3,314 | Not confirmed |
Common questions
How many lead pipes are in Lehigh County, PA?
Water systems based in Lehigh County reported 4,896 lead service lines, 6,186 galvanized lines that need replacing and 40,129 lines of unknown material to EPA (Q3 2026). Allentown has the most, with 10,391 lead and galvanized lines.
Who pays to replace lead service lines in Lehigh County?
It depends on your water utility. Pennsylvania's Act 120 lets PUC-regulated water utilities replace customer-owned lead service lines and recover the cost through rates, and it prohibits partial replacement. We have confirmed programs for 1 Lehigh County utility, listed on this page.
How do I find out if my house has a lead service line?
Look up your address on your water utility's service line inventory map, or check the pipe where it enters your home: lead is dull gray, soft, scratches to shiny silver, and a magnet won't stick. See our step-by-step guide.
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