County · Kansas
Sumner County, Kansas: drinking water records
This overview covers 13 ZIP codes and 17 community water systems in Sumner County. It also stands in for 1 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 |
|---|---|---|---|---|---|
| Wellington, City of KS2019119 | 7,664 | 120 | 1 | 1 | 0 ppb |
| Mulvane, City of KS2019113 | 6,587 | 120 | 1 | 0 | 2.9 ppb |
| Belle Plaine, City of KS2019115 | 1,468 | 0 | 0 | 16 | 2.9 ppb |
| Conway Springs, City of KS2019118 | 1,106 | 0 | 0 | 6 | 2 ppb |
| Argonia, City of KS2019116 | 455 | 0 | 0 | 5 | 1.1 ppb |
| Sumner Co Rwd 1 KS2019106 | 280 | 0 | 0 | 1 | 5.3 ppb |
| Sumner Co Rwd 3 KS2019105 | 80 | 0 | 0 | 3 | 0.8 ppb |
| Prairie Schooner Mobile Home Court KS2019112 | 50 | 0 | 0 | 3 | 0 ppb |
| Sumner Co Rwd 5 KS2019101 | 1,429 | 0 | 0 | 0 | 0 ppb |
| Sumner Co Rwd 4 KS2019103 | 1,157 | 0 | 0 | 0 | 4.2 ppb |
| Oxford, City of KS2019111 | 1,048 | 0 | 0 | 0 | 0 ppb |
| Caldwell, City of KS2019117 | 1,019 | 0 | 0 | 0 | 0 ppb |
| Sumner Co Rwd 2 KS2019107 | 490 | 0 | 0 | 0 | 1.1 ppb |
| South Haven, City of KS2019104 | 325 | 0 | 0 | 0 | 2.1 ppb |
| Sumner Co Rwd 6 KS2019110 | 298 | 0 | 0 | 0 | 0 ppb |
| Geuda Springs, City of KS2019114 | 151 | 0 | 0 | 0 | 2.8 ppb |
| Mayfield, City of KS2019102 | 74 | 0 | 0 | 0 | 2.5 ppb |
ZIP reports in Sumner County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 67106.
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.