Lead pipes in Fairfield County, Connecticut
How many lead pipes are in Fairfield County, CT?
Water systems based in Fairfield County reported 5,644 lead service lines, 947 galvanized lines that need replacing and 131,285 lines of unknown material to EPA (Q3 2026). Fairfield County (Aquarion) has the most, with 4,271 lead and galvanized lines.
Who pays in Connecticut
This state has no law we found that decides who pays for the private side of a lead service line, so each utility sets its own policy. Under the federal rule, utilities must replace every lead line and galvanized line that needs it within ten years of November 1, 2027, but the rule does not make utilities pay for the owner's side. Federal infrastructure money passed through the state revolving fund can pay for it, so many utilities offer free or discounted replacement, especially for low-income owners.
Confirmed programs in Fairfield County
- Fairfield County (Aquarion): Replacement options and cost help.
- Greenwich & Stamford (Aquarion): Replacement options and cost help.
Every Fairfield 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 |
|---|---|---|---|---|
| Fairfield County (Aquarion) Aquarion-Eastern Fairfield County | 3,948 | 323 | 63,008 | Replacing lines; ask about cost |
| Greenwich & Stamford (Aquarion) Aquarion-Greenwich | 1,553 | 133 | 13,162 | Replacing lines; ask about cost |
| Norwalk First Taxing District Norwalk First Taxing District | 91 | 104 | 4,700 | Not confirmed |
| Aquarion-stamford Aquarion-Stamford | 4 | 112 | 15,227 | Not confirmed |
| Aquarion-darien Aquarion-Darien | 20 | 90 | 4,427 | Not confirmed |
| South Norwalk Electric & Water South Norwalk Electric & Water | 19 | 35 | 6,463 | Not confirmed |
| Aquarion-new Milford Regional Aquarion-New Milford Regional | 0 | 41 | 5,052 | Not confirmed |
| Aquarion-new Canaan Aquarion-New Canaan | 5 | 35 | 3,297 | Not confirmed |
| Bethel Bethel Water Dept | 0 | 35 | 1,397 | Not confirmed |
| Aquarion-ridgefield Aquarion-Ridgefield | 0 | 27 | 2,581 | Not confirmed |
| Aquarion-newtown Regional Aquarion-Newtown Regional | 2 | 9 | 2,709 | Not confirmed |
| Aquarion-timber Trails Aquarion-Timber Trails | 1 | 2 | 73 | Not confirmed |
| Danbury Danbury Water Department | 0 | 1 | 9,111 | Not confirmed |
| Knollcrest Tax District Knollcrest Tax District | 1 | 0 | 78 | Not confirmed |
Common questions
How many lead pipes are in Fairfield County, CT?
Water systems based in Fairfield County reported 5,644 lead service lines, 947 galvanized lines that need replacing and 131,285 lines of unknown material to EPA (Q3 2026). Fairfield County (Aquarion) has the most, with 4,271 lead and galvanized lines.
Who pays to replace lead service lines in Fairfield County?
It depends on your water utility. Connecticut has no law we found that decides who pays for the private side of a lead service line, so each utility sets its own policy. We have confirmed programs for 2 Fairfield County utilities, 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.