Scott County Pwsd 1, MO
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2024-2026). 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.
Scott County Pwsd 1 at a glance
Scott County Pwsd 1 serves about 785 people through 311 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 groundwater, in Scott County, Missouri. EPA system ID: MO4021083; phone on file: 573-576-5778. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Scott County Pwsd 1's lead record
That is down 1.07 ppb from 1.07 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Scott County Pwsd 1 is 2.02 ppb across 8 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 1.07 ppb |
| 2023 | 1.07 ppb |
| 2022 | 2.02 ppb |
| 2020 | 2.02 ppb |
| 2019 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2016 | 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. Scott County Pwsd 1's reported as 0 (not detected) sits at the 27th percentile in Missouri and the 25th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
15 other systems share Scott County; 12 of them have a higher latest lead result than Scott County Pwsd 1. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Sikeston Pws | 16,291 | 1.13 ppb |
| Scott City Pws | 4,653 | 1.25 ppb |
| Scott County Pwsd 4 | 3,150 | 0 (not detected) |
| Chaffee Pws | 3,054 | 1.17 ppb |
| Oran Pws | 1,294 | 2.71 ppb |
| Miner Pws | 1,135 | 0 (not detected) |
| Benton Pws | 885 | 3.42 ppb |
| Morley Pws | 699 | 1.52 ppb |
| Kelso Pws | 586 | 5.87 ppb |
| Scott County Pwsd 2 | 553 | 3.84 ppb |
What to do in your house
Look up your address in Scott County Pwsd 1'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 Scott County Pwsd 1 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.