Lead pipes in St. Charles County, Missouri

How many lead pipes are in St. Charles County, MO?

Water systems based in St. Charles County reported 9,430 lead service lines, 1,248 galvanized lines that need replacing and 212,021 lines of unknown material to EPA (Q3 2026). St. Louis County (Missouri American) has the most, with 10,669 lead and galvanized lines.

Lead lines9,430

Galvanized (replace)1,248

Unknown material212,021

Water systems6

Lead and galvanized lines by water system in St. Charles County

Free replacement program confirmed

Who pays in Missouri

This state has no law we found that decides who pays for the private side of a lead service line, so each utility sets its own policy. Under the federal rule, utilities must replace every lead line and galvanized line that needs it within ten years of November 1, 2027, but the rule does not make utilities pay for the owner's side. Federal infrastructure money passed through the state revolving fund can pay for it, so many utilities offer free or discounted replacement, especially for low-income owners.

Confirmed programs in St. Charles County

St. Louis County (Missouri American): Utility replaces the whole line.

Every St. Charles County water system with lead lines

Systems are grouped by the county EPA lists as their main service area. Some serve towns in neighboring counties too.

Water system	Lead	Galv.	Unknown	Program
St. Louis County (Missouri American) Mo American St Louis St Charles Counties	9,422	1,247	191,341	Free, utility schedules
St. Charles St Charles PWS	7	0	365	Not confirmed
O Fallon Ofallon PWS	0	1	13,001	Not confirmed
Wentzville Wentzville PWS	1	0	2	Not confirmed
St. Peters St Peters PWS	0	0	2,860	Not confirmed
St Charles County PWSD 2 St Charles County PWSD 2	0	0	4,452	Not confirmed

Get lead line replacement quotes in St. Charles County

Compare prices from licensed local plumbers who replace water service lines. Useful if your utility's program doesn't cover you, has a long wait, or you need the work done sooner.

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Common questions

How many lead pipes are in St. Charles County, MO?

Who pays to replace lead service lines in St. Charles County?

It depends on your water utility. Missouri has no law we found that decides who pays for the private side of a lead service line, so each utility sets its own policy. We have confirmed programs for 1 St. Charles County utility, listed on this page.

How do I find out if my house has a lead service line?

Look up your address on your water utility's service line inventory map, or check the pipe where it enters your home: lead is dull gray, soft, scratches to shiny silver, and a magnet won't stick. See our step-by-step guide.

Other Missouri counties

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