Missouri · population 72,458
Lead pipes in St. Charles, MO
7 lead or galvanized lines to replace
Most of St. Charles (population 72,458) gets its water from St Charles PWS. That system reported 7 lead and 0 galvanized-requiring-replacement service lines out of 28,600, with 365 more of unknown material.
<0.1% of St Charles 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 <0.1%
- Galvanized (replace) 0%
- Unknown 1.3%
- Non-lead 99%
Latest lead test for St Charles PWS (Jan 2022–Dec 2024): not detected 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 St Charles PWS.
Water systems serving St. Charles
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| St Charles PWSMain system | 7 | 0 | 365 | <0.1% |
| Mo American St Louis St Charles CountiesServes nearby areas | 9,422 | 1,247 | 191,341 | 2.7% |
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 St. Charles
The counts above cover the whole water system. To see whether your line is lead, look up your address on St Charles 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
- St. Peters2,860 unknown
- Bridgeton10,669 lead + galv. lines
- Maryland Heights10,669 lead + galv. lines
- Hazelwood10,669 lead + galv. lines
- Cottleville10,669 lead + galv. lines
- St. Ann10,669 lead + galv. lines
- Weldon Spring10,669 lead + galv. lines
- Woodson Terrace10,669 lead + galv. lines
Check another water system
Questions
Does St. Charles, MO have lead pipes?
Yes. St Charles PWS, which serves St. Charles, reported 7 lead and 0 galvanized-requiring-replacement service lines, plus 365 of unknown material.
Who supplies water to St. Charles?
EPA's service area maps place most of St. Charles in St Charles PWS's service area (PWSID MO6010707). Mo American St Louis St Charles Counties also serves parts of the city or nearby areas.
How do I check whether my St. Charles home has a lead service line?
Search your address on St Charles 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 St. Charles 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 St Charles PWS whether your street is scheduled and whether it covers the private side.