Missouri · population 1,741
Lead pipes in Hamilton, MO
734 lines still unidentified
Most of Hamilton (population 1,741) gets its water from Hamilton PWS. It reported no confirmed lead service lines, but 734 of 849 lines are still listed as unknown material, so lead hasn't been ruled out.
0% of Hamilton PWS's service lines are lead or galvanized requiring replacement, lower than the Missouri average (3.3%) and lower than the national average (3.1%).
- Lead 0%
- Galvanized (replace) 0%
- Unknown 86%
- Non-lead 14%
Latest lead test for Hamilton PWS (Jan 2024–Dec 2026): not detected 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 Hamilton PWS.
Water systems serving Hamilton
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Hamilton PWSMain system | 0 | 0 | 734 | 0% |
| Caldwell County PWSD 3Serves 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 Hamilton
The counts above cover the whole water system. To see whether your line is lead, look up your address on Hamilton PWS'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
- Gallatin24 lead + galv. lines
- Cameron8 lead + galv. lines
- Lathrop1,976 unknown
- Maysville2 lead + galv. lines
- Lawson1,084 unknown
- Chillicothe1 lead + galv. lines
- Plattsburg1,278 unknown
- Excelsior Springsno lead reported
Check another water system
Questions
Does Hamilton, MO have lead pipes?
None are confirmed, but Hamilton PWS still lists 734 service lines as unknown material.
Who supplies water to Hamilton?
EPA's service area maps place most of Hamilton in Hamilton PWS's service area (PWSID MO1010342). Caldwell County PWSD 3 also serves parts of the city or nearby areas.
How do I check whether my Hamilton home has a lead service line?
Search your address on Hamilton PWS'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 Hamilton 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 Hamilton PWS whether your street is scheduled and whether it covers the private side.