New Hampshire · population 33,909
Lead pipes in Dover, NH
7,939 lines still unidentified
Most of Dover (population 33,909) gets its water from Dover Water Dept. It reported no confirmed lead service lines, but 7,939 of 7,939 lines are still listed as unknown material, so lead hasn't been ruled out.
0% of Dover Water Dept's service lines are lead or galvanized requiring replacement, lower than the New Hampshire average (1.9%) and lower than the national average (3.1%).
- Lead 0%
- Galvanized (replace) 0%
- Unknown 100%
- Non-lead 0%
Latest lead test for Dover Water Dept (Jul 2024–Dec 2024): 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 Dover Water Dept.
Water systems serving Dover
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Dover Water DeptMain system | 0 | 0 | 7,939 | 0% |
| Portsmouth Water WorksServes nearby areas | 0 | 140 | 3,108 | 4.3% |
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 Dover
The counts above cover the whole water system. To see whether your line is lead, look up your address on Dover Water Dept'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
- Somersworth191 lead + galv. lines
- Rochesterno lead reported
- Portsmouth140 lead + galv. lines
- Manchester17,297 unknown
- Laconia53 lead + galv. lines
- Nashua870 lead + galv. lines
- Franklin1,577 unknown
- Lebanon109 lead + galv. lines
Check another water system
Questions
Does Dover, NH have lead pipes?
None are confirmed, but Dover Water Dept still lists 7,939 service lines as unknown material.
Who supplies water to Dover?
EPA's service area maps place most of Dover in Dover Water Dept's service area (PWSID NH0651010). Portsmouth Water Works also serves parts of the city or nearby areas.
How do I check whether my Dover home has a lead service line?
Search your address on Dover Water Dept'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 Dover 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 Dover Water Dept whether your street is scheduled and whether it covers the private side.