Ohio · population 10,743
Lead pipes in London, OH
39 lead or galvanized lines to replace
Most of London (population 10,743) gets its water from Mid-Ohio WSD - Chrisman Avenue WTP. That system reported 0 lead and 39 galvanized-requiring-replacement service lines out of 4,133, with 1,128 more of unknown material.
0.9% of Mid-Ohio WSD - Chrisman Avenue WTP's service lines are lead or galvanized requiring replacement, lower than the Ohio average (8.8%) and lower than the national average (3.1%).
- Lead 0%
- Galvanized (replace) 0.9%
- Unknown 27%
- Non-lead 72%
Latest lead test for Mid-Ohio WSD - Chrisman Avenue WTP (Jan 2023–Dec 2025): 2.1 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists no Lead and Copper Rule violations since 2015 for Mid-Ohio WSD - Chrisman Avenue WTP.
Water systems serving London
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Mid-Ohio WSD - Chrisman Avenue WTPMain system | 0 | 39 | 1,128 | 0.9% |
| Mid-Ohio WSD - Old Springfield Road WTPServes nearby areas | 0 | 0 | 0 | 0% |
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 London
The counts above cover the whole water system. To see whether your line is lead, look up your address on Mid-Ohio WSD - Chrisman Avenue WTP'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
- Plain93 lead + galv. lines
- Hilliard33,248 lead + galv. lines
- Jeffersonville19 lead + galv. lines
- Urbancrest33,248 lead + galv. lines
- Grove33,248 lead + galv. lines
- Upper Arlington33,248 lead + galv. lines
- Dublin33,248 lead + galv. lines
- Grandview Heights33,248 lead + galv. lines
Check another water system
Questions
Does London, OH have lead pipes?
Yes. Mid-Ohio WSD - Chrisman Avenue WTP, which serves London, reported 0 lead and 39 galvanized-requiring-replacement service lines, plus 1,128 of unknown material.
Who supplies water to London?
EPA's service area maps place most of London in Mid-Ohio WSD - Chrisman Avenue WTP's service area (PWSID OH4900712). Mid-Ohio WSD - Old Springfield Road WTP also serves parts of the city or nearby areas.
How do I check whether my London home has a lead service line?
Search your address on Mid-Ohio WSD - Chrisman Avenue WTP'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 London 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 Mid-Ohio WSD - Chrisman Avenue WTP whether your street is scheduled and whether it covers the private side.