Walker Pws, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 1.7 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.
Walker Pws at a glance
Walker Pws serves about 283 people through 104 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 Vernon County, Missouri. EPA system ID: MO5010828; phone on file: 417-465-2230. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is up 1.7 ppb from 0 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Walker Pws is 3.89 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.7 ppb |
| 2022 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0.5 ppb |
| 2019 | 0.5 ppb |
| 2016 | 3.89 ppb |
| 2016 | 3.89 ppb |
How Walker 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. Walker Pws's 1.7 ppb sits at the 65th percentile in Missouri and the 66th nationally (higher means more lead).
Other water systems in Vernon County
7 other systems share Vernon County; 1 of them has a higher latest lead result than Walker Pws. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Vernon County Cons Pwsd 1 | 9,615 | 0 (not detected) |
| Nevada Pws | 8,198 | 0 (not detected) |
| Vernon County Pwsd 2 | 1,800 | 0 (not detected) |
| Vernon County Pwsd 7 | 550 | 2.54 ppb |
| Sheldon Pws | 543 | 0 (not detected) |
| Schell City Pws | 250 | 0 (not detected) |
| Bronaugh Pws | 163 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Walker, 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 Walker 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Systems that went over once often dip back under; here is what that means.