County · Missouri
Clay County, Missouri: drinking water records
This overview covers 18 ZIP codes and 30 community water systems in Clay County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Kansas City PWS MO1010415 | 553,295 | 215 | 1 | 1 | 2.1 ppb |
| Liberty PWS MO1010466 | 30,800 | 60 | 0 | 0 | 4.6 ppb |
| Gladstone PWS MO1010307 | 27,000 | 60 | 0 | 0 | 4.3 ppb |
| Kearney PWS MO1010416 | 11,500 | 180 | 1 | 0 | 0 ppb |
| Excelsior Springs PWS MO1010261 | 11,084 | 60 | 0 | 0 | 0 ppb |
| Smithville PWS MO1010748 | 10,885 | 120 | 1 | 0 | 2.7 ppb |
| Ray County Cons Pwsd 2 MO1024511 | 9,360 | 60 | 0 | 0 | 3.5 ppb |
| Clay County Pwsd 6 MO1024146 | 4,912 | 120 | 1 | 0 | 0 ppb |
| North Kansas City PWS MO1010580 | 4,500 | 60 | 3 | 0 | 0 ppb |
| Clay County Pwsd 3 MO1024143 | 3,447 | 120 | 0 | 0 | 1.6 ppb |
| Clay County Pwsd 8 MO1024149 | 2,243 | 120 | 1 | 0 | 0 ppb |
| Palmer Creek Utility Assc, INC MS0240247 | 570 | 60 | 0 | 0 | 0.3 ppb |
| Mosby PWS MO1010546 | 93 | 0 | 0 | 21 | 0 ppb |
| Clay County Pwsd 2 MO1024142 | 3,485 | 0 | 0 | 0 | 1.1 ppb |
| Woolmarket Village Estates MS0240237 | 2,910 | 0 | 0 | 0 | 1 ppb |
| Clay County Pwsd 9 MO1024150 | 2,465 | 0 | 0 | 0 | 2.1 ppb |
| Robinwood Forest Utility INC MS0240212 | 1,275 | 0 | 0 | 0 | 0 ppb |
| Clay County Pwsd 5 MO1024145 | 1,191 | 0 | 0 | 0 | 1.5 ppb |
| Clay County Pwsd 4 MO1024144 | 1,032 | 0 | 0 | 0 | 6.5 ppb |
| Lakewood Environmental MS0240052 | 982 | 0 | 0 | 0 | 7 ppb |
| Deerwood Utilities MS0240236 | 404 | 0 | 0 | 0 | 0.7 ppb |
| Pass Christian Isles MS0240066 | 399 | 0 | 0 | 0 | 4 ppb |
| Liberty Village MHP MO1048046 | 350 | 0 | 0 | 0 | 0 ppb |
| The Woods MS0240258 | 285 | 0 | 0 | 0 | 5.6 ppb |
| Missouri City PWS MO1010532 | 254 | 0 | 0 | 0 | 4.2 ppb |
ZIP reports in Clay County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.