Lead Service Line Inventory: MO American (St. Louis & St. Charles Counties)
MO American serves approximately 1.1 million people across St. Louis and St. Charles Counties. Like all US water utilities, it is required by federal law to maintain an inventory of lead service lines—the pipes that connect homes to the water main.
What we know about this utility's lead service lines
Currently, this utility has not made detailed inventory data publicly available. The records we've checked do not show an updated count of lead, galvanized, or unknown service lines in the system.
This does not mean the utility has no lead service lines. It means the information has not been published yet.
Why this matters
Lead service lines are the largest source of lead in drinking water for many households. Even "low" lead levels can be a concern for young children and pregnant people. If your home was built before the 1980s, you're more likely to have a lead or galvanized service line.
What you can do
Contact the utility directly. Call or email MO American and ask:
- Does your specific address have a lead, galvanized, or unknown service line?
- When will the full inventory be public?
- What programs exist to help replace lead lines?
MO American's customer service team can often tell you about your own service line faster than published records.
Test your water. If you're concerned, a simple test costs $20–50 and tells you whether lead is actually reaching your tap. High levels warrant action; lower levels still warrant precautions like flushing the line before drinking. The EPA's water testing guide explains how.
Know your home's age. Service lines installed before 1980 are more likely to contain lead. If you live in an older home, take this seriously—but don't panic. Mitigation steps (like using a pitcher filter or point-of-use treatment) are effective while you plan a replacement.
Next steps for residents
- Call MO American at their customer service line and ask about your service line material.
- Request the utility's lead service line inventory or replacement timeline.
- Get your water tested if you have a young child, pregnant household member, or older home.
- Visit the EPA's drinking water guide for more information on lead risks and treatment options.
Key figures
| Total inventoried lines | 0 |
|---|---|
| BIL/IIJA funding received | — |
| Replacement plan status | Not reported |
| Utility's LCRR inventory | Not provided |
Frequently asked
How do I know if my home has a lead service line?
Contact your water utility directly—they can tell you based on your address. You can also look where the water line enters your home: lead is dull gray, soft enough to scratch with a coin, and slightly magnetic. Galvanized steel looks silver and is harder. If unsure, a plumber can help identify it.
Is it dangerous to have a lead service line?
Lead can leach into water, especially if the water is corrosive or if the line sits unused for hours. Infants, young children, and pregnant people are at highest risk. If you're concerned about your health, speak with your pediatrician or contact the CDC at 1-800-CDC-INFO.
Can I replace my lead service line?
Yes. Many utilities now offer programs to help split the cost. Contact your water utility to ask about replacement rebates, financing, or lead line removal programs in your area.
What should I do if I think my water has lead in it?
Get a water test ($20–50) from a certified lab. If results are high, flush your line before drinking, use a pitcher filter, or consider point-of-use treatment while you plan a replacement. Contact your utility for guidance.