Wayne & Butler County Pwsd 4, MO
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2021-2023). 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 Wayne & Butler County Pwsd 4
Wayne & Butler County Pwsd 4 serves about 1,400 people through 674 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 Wayne County, Missouri. EPA system ID: MO4021311. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Wayne & Butler County Pwsd 4 is 2.93 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 2.93 ppb |
| 2017 | 2.93 ppb |
| 2016 | 1.92 ppb |
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. Wayne & Butler County Pwsd 4's reported as 0 (not detected) sits at the 31st percentile in Missouri and the 29th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Wayne County
14 other systems share Wayne County; 8 of them have a higher latest lead result than Wayne & Butler County Pwsd 4. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Piedmont Pws | 1,987 | 0 (not detected) |
| Wayne County Pwsd 2 | 950 | 0 (not detected) |
| Greenville Pws | 497 | 0 (not detected) |
| Community Water System | 378 | 6.15 ppb |
| Williamsville Pws | 342 | 0 (not detected) |
| Wayne County Pwsd 3 | 300 | 7.1 ppb |
| Ridgetop Waterworks Corp Subdivision | 227 | 1.77 ppb |
| Liberty Utilities Whispering Hills Subd | 150 | 0 (not detected) |
| Lost Creek Water Company | 133 | 0.63 ppb |
| Mill Spring Pws | 112 | 1.1 ppb |
Your move
Look up your address in Wayne & Butler County Pwsd 4'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 Wayne & Butler County Pwsd 4 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. The lead result guide covers how utilities pick the homes they sample. A zero today does not rule out a jump later - the rules are tightening in 2027.