Missouri · population 5,304
Lead pipes in Weldon Spring, MO
10,669 lead or galvanized lines to replace
Most of Weldon Spring (population 5,304) gets its water from Mo American St Louis St Charles Counties. That system reported 9,422 lead and 1,247 galvanized-requiring-replacement service lines out of 388,276, with 191,341 more of unknown material.
2.7% of Mo American St Louis St Charles Counties's service lines are lead or galvanized requiring replacement, about the same as the Missouri average (3.3%) and about the same as the national average (3.1%).
- Lead 2.4%
- Galvanized (replace) 0.3%
- Unknown 49%
- Non-lead 48%
Latest lead test for Mo American St Louis St Charles Counties (Jul 2024–Dec 2024): 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 Mo American St Louis St Charles Counties.
Water systems serving Weldon Spring
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Mo American St Louis St Charles CountiesMain system | 9,422 | 1,247 | 191,341 | 2.7% |
| St Charles County PWSD 2Serves nearby areas | 0 | 0 | 4,452 | 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 Weldon Spring
The counts above cover the whole water system. To see whether your line is lead, look up your address on Mo American St Louis St Charles Counties'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
- Cottleville10,669 lead + galv. lines
- Dardenne Prairie4,452 unknown
- Chesterfield10,669 lead + galv. lines
- St. Peters2,860 unknown
- O'Fallon4,452 unknown
- Clarkson Valley10,669 lead + galv. lines
- Lake St. Louis4,452 unknown
- Ellisville10,669 lead + galv. lines
Check another water system
Questions
Does Weldon Spring, MO have lead pipes?
Yes. Mo American St Louis St Charles Counties, which serves Weldon Spring, reported 9,422 lead and 1,247 galvanized-requiring-replacement service lines, plus 191,341 of unknown material.
Who supplies water to Weldon Spring?
EPA's service area maps place most of Weldon Spring in Mo American St Louis St Charles Counties's service area (PWSID MO6010716). St Charles County PWSD 2 also serves parts of the city or nearby areas.
How do I check whether my Weldon Spring home has a lead service line?
Search your address on Mo American St Louis St Charles Counties'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 Weldon Spring 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 Mo American St Louis St Charles Counties whether your street is scheduled and whether it covers the private side.