County · Minnesota
Clay County, Minnesota: drinking water records
This overview covers 13 ZIP codes and 14 community water systems in Clay County. It also stands in for 3 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 |
|---|---|---|---|---|---|
| Moorhead MN1140008 | 44,583 | 120 | 1 | 0 | 8 ppb |
| Dilworth MN1140003 | 4,918 | 120 | 1 | 0 | 0 ppb |
| Sabin MN1140010 | 629 | 0 | 0 | 1 | 0 ppb |
| Comstock MN1140002 | 95 | 0 | 0 | 1 | 3 ppb |
| Royalton Terrace VT0005331 | 60 | 0 | 0 | 3 | 0 ppb |
| Barnesville MN1140001 | 2,784 | 0 | 0 | 0 | 3 ppb |
| Hawley MN1140006 | 2,267 | 0 | 0 | 0 | 0 ppb |
| Glyndon MN1140005 | 1,386 | 0 | 0 | 0 | 3 ppb |
| Ulen MN1140011 | 500 | 0 | 0 | 0 | 1 ppb |
| Hitterdal MN1140007 | 208 | 0 | 0 | 0 | 3 ppb |
| Spring Prairie Colony MN1140020 | 200 | 0 | 0 | 0 | 0 ppb |
| Felton MN1140012 | 178 | 0 | 0 | 0 | 0 ppb |
| John Bouton Housing Development MN1140016 | 125 | 0 | 0 | 0 | 0 ppb |
| Georgetown MN1140014 | 76 | 0 | 0 | 0 | 2 ppb |
ZIP reports in Clay 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: 56536, 56546, 56552.
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.