Monroe City Pws, 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.
About Monroe City Pws
Monroe City Pws serves about 2,500 people through 1,200 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Monroe County, Missouri. EPA system ID: MO2010538; phone on file: 573-735-4585. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Monroe City Pws's lead record
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Monroe City Pws is 2.02 ppb across 8 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2022 | 2.02 ppb |
| 2022 | 2.02 ppb |
| 2019 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 1.02 ppb |
| 2016 | 1.02 ppb |
How Monroe City Pws compares
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. Monroe City Pws's reported as 0 (not detected) sits at the 35th percentile in Missouri and the 32nd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Monroe County
3 other systems share Monroe County; 2 of them have a higher latest lead result than Monroe City Pws. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Paris Pws | 1,161 | 4.04 ppb |
| Madison Pws | 554 | 1.24 ppb |
| Clarence Cannon Wholesale Wtr Comm | 25 | - |
Next steps for Monroe, MO
Look up your address in Monroe City Pws'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 Monroe City Pws 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. Small systems behave differently: why small systems go over more often.