Clay County Pwsd 8, MO
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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.
Who runs the water here
Clay County Pwsd 8 serves about 2,243 people through 868 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 surface water, in Clay County, Missouri. EPA system ID: MO1024149. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Clay County Pwsd 8 is 3.27 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 1.43 ppb |
| 2019 | 1.43 ppb |
| 2016 | 3.27 ppb |
| 2016 | 3.27 ppb |
How Clay County Pwsd 8 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. Clay County Pwsd 8's reported as 0 (not detected) sits at the 34th percentile in Missouri and the 31st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Clay County
18 other systems share Clay County; 9 of them have a higher latest lead result than Clay County Pwsd 8. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Liberty Pws | 30,800 | 4.61 ppb |
| Gladstone Pws | 27,000 | 4.3 ppb |
| Kearney Pws | 11,500 | 0 (not detected) |
| Excelsior Springs Pws | 11,084 | 0 (not detected) |
| Smithville Pws | 10,885 | 2.69 ppb |
| Clay County Pwsd 6 | 4,912 | 0 (not detected) |
| North Kansas City Pws | 4,500 | 0 (not detected) |
| Clay County Pwsd 2 | 3,485 | 1.05 ppb |
| Clay County Pwsd 3 | 3,447 | 1.62 ppb |
| Clay County Pwsd 9 | 2,465 | 2.13 ppb |
Your move
Look up your address in Clay County Pwsd 8'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 Clay County Pwsd 8 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. A zero today does not rule out a jump later - the rules are tightening in 2027.