Centralia Pws, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 1.32 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.
Centralia Pws at a glance
Centralia Pws serves about 4,027 people through 2,108 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Boone County, Missouri. EPA system ID: MO3010152; phone on file: 573-682-2139. They can tell you what your service line is made of and whether they pay to replace it.
Centralia Pws's lead record
Against the period ending 2022 (1.33 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Centralia Pws is 1.34 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.32 ppb |
| 2022 | 1.33 ppb |
| 2022 | 1.33 ppb |
| 2019 | 1.34 ppb |
| 2019 | 1.34 ppb |
| 2016 | 0 (not detected) |
| 2016 | 0 (not detected) |
How Centralia 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. Centralia Pws's 1.32 ppb sits at the 57th percentile in Missouri and the 61st nationally (higher means more lead).
Nearby utilities
11 other systems share Boone County; 10 of them have a higher latest lead result than Centralia Pws. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Columbia Utilities | 126,254 | 2.1 ppb |
| University Of Missouri Columbia | 40,000 | 2.01 ppb |
| Boone County Cons Pwsd 1 | 24,700 | 3.48 ppb |
| Boone County Pwsd 9 | 15,035 | 3.79 ppb |
| Boone County Pwsd 4 | 6,455 | 2.49 ppb |
| Ashland Pws | 4,999 | 2.84 ppb |
| Boone County Pwsd 10 | 4,963 | 2.41 ppb |
| Hallsville Pws | 1,732 | 1.81 ppb |
| Sturgeon Pws | 945 | 1.59 ppb |
| Kuhle H20 | 450 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Centralia, 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 Centralia 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. The action level is dropping - the 10 ppb rule from 2027.