County · Minnesota
Cass County, Minnesota: drinking water records
This overview covers 13 ZIP codes and 13 community water systems in Cass County. It also stands in for 9 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 |
|---|---|---|---|---|---|
| Walker MN1110013 | 990 | 0 | 0 | 0 | 0 ppb |
| Pine River MN1110019 | 939 | 0 | 0 | 0 | 4 ppb |
| Cass Lake MN1110006 | 691 | 0 | 0 | 0 | 2 ppb |
| Pillager MN1110030 | 523 | 0 | 0 | 0 | 0 ppb |
| Remer MN1110011 | 369 | 0 | 0 | 0 | 0 ppb |
| Hackensack MN1110008 | 306 | 0 | 0 | 0 | 0 ppb |
| Backus MN1110002 | 267 | 0 | 0 | 0 | 0 ppb |
| The Harbor MN1111113 | 100 | 0 | 0 | 0 | 0 ppb |
| Legacy Homes, LLC MN1111117 | 81 | 0 | 0 | 0 | 4 ppb |
| East Pointe Townhomes MN1111112 | 75 | 0 | 0 | 0 | 3 ppb |
| Townsedge Estates MN1110034 | 65 | 0 | 0 | 0 | 0 ppb |
| Timberlane Estates MN1110033 | 64 | 0 | 0 | 0 | 0 ppb |
| Kabekona Village Development MN1110035 | 50 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Cass 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: 56435, 56472, 56473, 56484, 56633, 56641, 56655, 56662, 56672.
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.