County · Minnesota
Lyon County, Minnesota: drinking water records
This overview covers 9 ZIP codes and 12 community water systems in Lyon County. It also stands in for 5 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 |
|---|---|---|---|---|---|
| Marshall MN1420006 | 13,890 | 60 | 1 | 0 | 8 ppb |
| Tracy MN1420010 | 2,154 | 0 | 0 | 0 | 4 ppb |
| Minneota MN1420007 | 1,380 | 0 | 0 | 0 | 0 ppb |
| Cottonwood MN1420002 | 1,212 | 0 | 0 | 0 | 2 ppb |
| Balaton MN1420001 | 639 | 0 | 0 | 0 | 12 ppb |
| Lynd MN1420005 | 448 | 0 | 0 | 0 | 1 ppb |
| Ghent MN1420004 | 370 | 0 | 0 | 0 | 0 ppb |
| Russell MN1420008 | 338 | 0 | 0 | 0 | 2 ppb |
| Garvin MN1420011 | 135 | 0 | 0 | 0 | 0 ppb |
| Taunton MN1420009 | 135 | 0 | 0 | 0 | 0 ppb |
| Fairview Township Water Association MN1420012 | 89 | 0 | 0 | 0 | 0 ppb |
| Florence MN1420003 | 39 | 0 | 0 | 0 | 2 ppb |
ZIP reports in Lyon 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: 56115, 56157, 56169, 56229, 56239.
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.