Qulin Pws, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 1.6 ppb (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. 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 Qulin Pws
Qulin Pws serves about 375 people through 203 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 Butler County, Missouri. EPA system ID: MO4010670; phone on file: 573-328-4488. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2025 (1.43 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Qulin Pws is 11.6 ppb across 8 monitoring periods, none of them over 15 ppb (2 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1.6 ppb |
| 2025 | 1.43 ppb |
| 2023 | 1.43 ppb |
| 2022 | 11.6 ppb over 10 |
| 2020 | 11.6 ppb over 10 |
| 2019 | 4.12 ppb |
| 2017 | 4.12 ppb |
| 2016 | 1.37 ppb |
How Qulin 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. Qulin Pws's 1.6 ppb sits at the 63rd percentile in Missouri and the 65th nationally (higher means more lead).
Nearby utilities
11 other systems share Butler County; 2 of them have a higher latest lead result than Qulin Pws. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Poplar Bluff Pws | 17,043 | 0 (not detected) |
| Butler County Pwsd 1 | 12,000 | 1.42 ppb |
| Butler County Pwsd 3 | 2,600 | 0 (not detected) |
| Butler County Pwsd 2 | 1,500 | 0 (not detected) |
| Neelyville Pws | 485 | 2.44 ppb |
| Butler County Pwsd 104 | 475 | 1.49 ppb |
| Fisk Pws | 342 | 1.51 ppb |
| Liberty Utilities Lakeland Hts Water Co | 290 | 0 (not detected) |
| W E Sears Youth Center | 150 | 2.32 ppb |
| Liberty Utilities Oakbrier Estates | 143 | 0 (not detected) |
Next steps for Qulin, MO
Test your own tap with a certified lab first-draw sample; Qulin, 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 Qulin 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. The lead result guide covers how utilities pick the homes they sample. The action level is dropping - the 10 ppb rule from 2027.