Montgomery County Pwsd 1 Montgomery City, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 8.75 ppb (monitoring period 2023-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About Montgomery County Pwsd 1 Montgomery City
Montgomery County Pwsd 1 Montgomery City serves about 20 people through 50 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Montgomery County, Missouri. EPA system ID: MO6024405; phone on file: 636-456-8227. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is up 8.75 ppb from 0 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Montgomery County Pwsd 1 Montgomery City is 8.75 ppb across 10 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 8.75 ppb |
| 2024 | 0 (not detected) |
| 2023 | 8.75 ppb |
| 2022 | 7.89 ppb |
| 2020 | 7.89 ppb |
| 2020 | 7.89 ppb |
| 2019 | 0.59 ppb |
| 2017 | 0.59 ppb |
| 2017 | 0.59 ppb |
| 2016 | 4.53 ppb |
How Montgomery County Pwsd 1 Montgomery City 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. Montgomery County Pwsd 1 Montgomery City's 8.75 ppb sits at the 98th percentile in Missouri and the 96th nationally (higher means more lead).
Nearby utilities
14 other systems share Montgomery County; 0 of them have a higher latest lead result than Montgomery County Pwsd 1 Montgomery City. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Montgomery City Pws | 2,811 | 1.49 ppb |
| Wellsville Pws | 1,210 | 2.91 ppb |
| New Florence Pws | 769 | 0 (not detected) |
| Jonesburg Pws | 768 | 1.36 ppb |
| Heritage Oaks Subdivision | 447 | 2.66 ppb |
| Bellflower Pws | 350 | 4.88 ppb |
| Montgomery County Pwsd 1 Jonesburg | 300 | 6.67 ppb |
| High Hill Pws | 300 | 4.6 ppb |
| Texas Landing Utilities Deerwood | 276 | 0 (not detected) |
| Texas Landing Utilities Goode City | 168 | 0.34 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Warrenton, MO may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Montgomery County Pwsd 1 Montgomery City 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. Size matters more than most people expect: small vs large water systems.