Mo American East Warrensburg, MO
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
Mo American East Warrensburg serves about 335 people through 134 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Johnson County, Missouri. EPA system ID: MO1036387; phone on file: 417-680-0314. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
The highest 90th-percentile result EPA holds for Mo American East Warrensburg is 0 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
Where this result ranks
Of the 1,674 Missouri systems with a lead result, the median latest reading is 1.04 ppb; 2 are over 15 ppb right now and 74 have gone over at some point. Mo American East Warrensburg's reported as 0 (not detected) sits at the 20th percentile in Missouri and the 19th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
13 other systems share Johnson County; 8 of them have a higher latest lead result than Mo American East Warrensburg. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Mo American Warrensburg | 18,500 | 0 (not detected) |
| Johnson County Pwsd 2 | 12,490 | 1.87 ppb |
| Whiteman Air Base | 10,106 | 0 (not detected) |
| Johnson County Pwsd 3 | 5,317 | 0 (not detected) |
| Johnson County Pwsd 1 | 4,240 | 1.08 ppb |
| Knob Noster Pws | 2,863 | 2.25 ppb |
| Holden Pws | 2,683 | 0 (not detected) |
| Leeton Pws | 601 | 1.73 ppb |
| Chilhowee Pws | 382 | 0.87 ppb |
| Kingsville Pws | 345 | 0.52 ppb |
Next steps for Joplin, MO
Look up your address in Mo American East Warrensburg's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Mo American East Warrensburg whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. What a 90th-percentile result does and does not tell you: how to read a lead result. A zero today does not rule out a jump later - the rules are tightening in 2027.