County · Kansas
Riley County, Kansas: drinking water records
This overview covers 8 ZIP codes and 10 community water systems in Riley 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 |
|---|---|---|---|---|---|
| Manhattan, City of KS2016112 | 54,763 | 60 | 0 | 0 | 1.9 ppb |
| Tuttle Cc Mobile Home Park, LLC KS2016102 | 50 | 0 | 0 | 1 | 0 ppb |
| Riley Co Rwd 1 KS2016135 | 2,108 | 0 | 0 | 0 | 0 ppb |
| Ogden, City of KS2016128 | 1,721 | 0 | 0 | 0 | 0 ppb |
| Riley, City of KS2016124 | 977 | 0 | 0 | 0 | 2.8 ppb |
| Leonardville, City of KS2016120 | 436 | 0 | 0 | 0 | 2.9 ppb |
| Konza Valley Water Benefit District KS2016109 | 345 | 0 | 0 | 0 | 2.2 ppb |
| Hunters Island Water District KS2016134 | 200 | 0 | 0 | 0 | 0 ppb |
| University Park Water District KS2016103 | 199 | 0 | 0 | 0 | 0.9 ppb |
| Randolph, City of KS2016126 | 167 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Riley 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.