County · Kansas
Lyon County, Kansas: drinking water records
This overview covers 8 ZIP codes and 12 community water systems in Lyon 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 |
|---|---|---|---|---|---|
| Emporia, City of KS2011105 | 24,009 | 120 | 0 | 6 | 3.3 ppb |
| Lyon Co Rwd 1 KS2011101 | 1,595 | 0 | 0 | 0 | 4.6 ppb |
| Lyon Co Rwd 5 KS2011107 | 1,310 | 0 | 0 | 0 | 1.5 ppb |
| Lyon Co Rwd 4 KS2011110 | 980 | 0 | 0 | 0 | 0 ppb |
| Lyon Co Rwd 2 KS2011108 | 750 | 0 | 0 | 0 | 0 ppb |
| Olpe, City of KS2011112 | 513 | 0 | 0 | 0 | 0 ppb |
| Lyon Co Rwd 3 KS2011113 | 479 | 0 | 0 | 0 | 0 ppb |
| Hartford, City of KS2011111 | 356 | 0 | 0 | 0 | 1.5 ppb |
| Park Place Communities Mgt LLC KS2011109 | 200 | 0 | 0 | 0 | 0 ppb |
| Reading, City of KS2011114 | 182 | 0 | 0 | 0 | 0.8 ppb |
| Allen, City of KS2011102 | 159 | 0 | 0 | 0 | 0 ppb |
| Admire, City of KS2011103 | 130 | 0 | 0 | 0 | 1.4 ppb |
ZIP reports in Lyon 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.