Connecticut · population 10,160
Lead pipes in Groton, CT
6 lead or galvanized lines to replace
Most of Groton (population 10,160) gets its water from Groton Utilities. That system reported 4 lead and 2 galvanized-requiring-replacement service lines out of 8,305, with 2,028 more of unknown material.
<0.1% of Groton Utilities's service lines are lead or galvanized requiring replacement, lower than the Connecticut average (1.6%) and lower than the national average (3.1%).
- Lead <0.1%
- Galvanized (replace) <0.1%
- Unknown 24%
- Non-lead 76%
Latest lead test for Groton Utilities (2026): 1.1 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists 1 Lead and Copper Rule violation since 2015 for Groton Utilities.
Water systems serving Groton
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Groton UtilitiesMain system | 4 | 2 | 2,028 | <0.1% |
| Aquarion-MysticAlso serves parts of the city | 1 | 21 | 4,756 | 0.4% |
| Groton Long Point AssociationAlso serves parts of the city | 0 | 2 | 555 | 0.3% |
| Ledyard Wpca, Gales Ferry SystemAlso serves parts of the city | 0 | 0 | 683 | 0% |
| Noank Fire DistrictAlso serves parts of the city | 0 | 0 | 17 | 0% |
| New London Dept. of Public UtilitiesServes nearby areas | 526 | 3 | 4,352 | 8.5% |
Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.
Check your address in Groton
The counts above cover the whole water system. To see whether your line is lead, look up your address on Groton Utilities's official inventory. Utilities had to make these public by October 16, 2024.
No map yet? Do the 2-minute scratch and magnet test.
Protect your drinking water
If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.
Choosing a lead-certified filter · Testing your water · Replacement cost
Nearby cities
- New London529 lead + galv. lines
- Stonington22 lead + galv. lines
- Norwich13 lead + galv. lines
- Middletown257 lead + galv. lines
- Danielson93 lead + galv. lines
- Meriden30 lead + galv. lines
- Hartford43 lead + galv. lines
- New Britain170 lead + galv. lines
Check another water system
Questions
Does Groton, CT have lead pipes?
Yes. Groton Utilities, which serves Groton, reported 4 lead and 2 galvanized-requiring-replacement service lines, plus 2,028 of unknown material.
Who supplies water to Groton?
EPA's service area maps place most of Groton in Groton Utilities's service area (PWSID CT0590011). Aquarion-Mystic, Groton Long Point Association, Ledyard Wpca, Gales Ferry System, Noank Fire District, New London Dept. of Public Utilities also serve parts of the city or nearby areas.
How do I check whether my Groton home has a lead service line?
Search your address on Groton Utilities's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.
When will lead pipes in Groton be replaced?
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask Groton Utilities whether your street is scheduled and whether it covers the private side.