Loading water data...
771 Maine water systems have inventoried 291,891 service lines for EPA. 29 (<0.1%) are confirmed lead and 41,667 (14%) are still of unknown material. Below: every large or city-linked Maine utility ranked by lead lines.
Maine water systems reported 29 lead service lines and 1,575 galvanized lines requiring replacement as of Q2 2026 — <0.1% of the 291,891 lines inventoried and <0.1% of the national lead total, ranking #44 of 51. GREATER AUGUSTA UTILITY DISTRICT reports the most in the state (9).
GREATER AUGUSTA UTILITY DISTRICT (9), BANGOR WATER DISTRICT (4).
Find your utility in the table below, then check its published service line inventory (most utilities post an address-lookup map) or call the number on your water bill. Utilities must notify customers whose line is lead, galvanized-requiring-replacement or unknown. You can also test the pipe entering your home: lead is soft, dull gray, non-magnetic and turns shiny when scratched.
Under EPA's Lead and Copper Rule Improvements, systems must replace lead and galvanized-requiring-replacement lines within 10 years starting in 2027; systems with very high counts can receive longer deadlines. Ask your utility for its replacement plan and whether it covers the homeowner-owned portion.
Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking, flush the tap after water has sat for hours, never use hot tap water for drinking or infant formula, and confirm your actual level with a certified lab test.
Source: EPA SDWIS Service Line Inventory, Q2 2026 snapshot (updated 2026-08-18). Counts are service lines, not people.
A certified mail-in lab test shows exactly what's in your water — lead plus dozens of other contaminants — with EPA-grade accuracy. Know your real levels before spending on a filter.
Certified lab · results in days
Community systems serving 50,000+ people plus systems linked to a city report on this site (10 shown). State totals above include every reporting system.
| # | Water system | Status | Lead | GRR | Unknown | Total lines | City report |
|---|---|---|---|---|---|---|---|
| 1 | GREATER AUGUSTA UTILITY DISTRICT ME0090080 · 13,750 served | Lead service lines present | 9 | 89 | 229 | 5,667 | Augusta → |
| 2 | BANGOR WATER DISTRICT ME0090110 · 27,298 served | Lead service lines present | 4 | 405 | 220 | 10,364 | |
| 3 | LEWISTON WATER & SEWER DIVISION ME0090830 · 23,720 served | Lead service lines present | 0 | 66 | 6,351 | 9,693 | Lewiston → |
| 4 | AUBURN WATER DISTRICT ME0090070 · 17,245 served | Many lines still unverified | 0 | 0 | 3,373 | 6,214 | |
| 5 | BRUNSWICK/TOPSHAM WATER DISTRICT ME0090260 · 18,863 served | Lead service lines present | 0 | 8 | 1,907 | 9,333 | |
| 6 | SANFORD WATER DISTRICT ME0091410 · 14,328 served | No lead service lines reported | 0 | 0 | 66 | 6,226 | |
| 7 | PORTLAND WATER DISTRICT-GREATER ME0091300 · 135,068 served | No lead service lines reported | 0 | 0 | 0 | 62,572 | |
| 8 | MAINE WATER COMPANY BIDDEFORD SACO DIV ME0090170 · 42,508 served | No lead service lines reported | 0 | 0 | 0 | 17,496 | Saco → |
| 9 | KENNEBEC WATER DISTRICT ME0090750 · 22,060 served | No lead service lines reported | 0 | 0 | 0 | 10,372 | |
| 10 | PRESQUE ISLE UTILITIES DISTRICT ME0091310 · 6,128 served | No lead service lines reported | 0 | 0 | 0 | 2,474 |
A lead or unknown service line means lead can enter water after it leaves the treatment plant, so city-level test results understate what reaches your tap. Filter drinking and cooking water with an NSF/ANSI 53 lead-certified system, and see the lead in drinking water guide or Maine city water reports.
We may earn a commission from filters purchased through these links, at no extra cost to you.