County · Kansas
Brown County, Kansas: drinking water records
This overview covers 8 ZIP codes and 11 community water systems in Brown 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 |
|---|---|---|---|---|---|
| Hiawatha, City of KS2001305 | 3,246 | 0 | 0 | 5 | 8.5 ppb |
| Morrill, City of KS2001307 | 217 | 0 | 0 | 4 | 5.7 ppb |
| Reserve, City of KS2001302 | 70 | 0 | 0 | 5 | 0 ppb |
| Willis, City of KS2001311 | 38 | 0 | 0 | 7 | 2.1 ppb |
| Horton, City of KS2001306 | 1,514 | 0 | 0 | 0 | 2.7 ppb |
| Brown Co Rwd 2 KS2001312 | 724 | 0 | 0 | 0 | 0 ppb |
| Brown Co Rwd 1 KS2001304 | 709 | 0 | 0 | 0 | 3.5 ppb |
| Everest, City of KS2001308 | 259 | 0 | 0 | 0 | 0 ppb |
| Robinson, City of KS2001301 | 181 | 0 | 0 | 0 | 1.2 ppb |
| Powhattan, City of KS2001303 | 68 | 0 | 0 | 0 | 7.4 ppb |
| Public Wholesale WSD 27 KS2001313 | 1 | 0 | 0 | 0 | not reported |
ZIP reports in Brown 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.