Clinton Co Pwsd 4 Sys 1, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 2.01 ppb (monitoring period 2022-2024). 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.
Who runs the water here
Clinton Co Pwsd 4 Sys 1 serves about 4,968 people through 1,996 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 surface water, in Clinton County, Missouri. EPA system ID: MO1024156; phone on file: 816-580-7211. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Clinton Co Pwsd 4 Sys 1's lead record
Against the period ending 2022 (1.63 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Clinton Co Pwsd 4 Sys 1 is 2.01 ppb across 8 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 2.01 ppb |
| 2022 | 1.63 ppb |
| 2021 | 1.63 ppb |
| 2021 | 1.63 ppb |
| 2019 | 1.66 ppb |
| 2018 | 1.66 ppb |
| 2018 | 1.66 ppb |
| 2016 | 0 (not detected) |
Against other Missouri systems
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. Clinton Co Pwsd 4 Sys 1's 2.01 ppb sits at the 71st percentile in Missouri and the 73rd nationally (higher means more lead).
Neighbouring systems
6 other systems share Clinton County; 3 of them have a higher latest lead result than Clinton Co Pwsd 4 Sys 1. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cameron Pws | 11,963 | 1.41 ppb |
| Lathrop Pws | 2,945 | 0 (not detected) |
| Plattsburg Pws | 2,354 | 15.5 ppb |
| Gower Pws | 1,360 | 0 (not detected) |
| Clinton County Pwsd 1 | 1,080 | 2.72 ppb |
| Clinton County Pwsd 4 Sys 2 | 840 | 2.31 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Lathrop, 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 Clinton Co Pwsd 4 Sys 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. The lead result guide covers how utilities pick the homes they sample. Systems that went over once often dip back under; here is what that means.