County · Minnesota
Blue Earth County, Minnesota: drinking water records
This overview covers 12 ZIP codes and 18 community water systems in Blue Earth 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 |
|---|---|---|---|---|---|
| Amboy MN1070001 | 535 | 60 | 0 | 10 | 6 ppb |
| Mankato MN1070009 | 42,803 | 180 | 0 | 0 | 2 ppb |
| Saint Clair MN1070017 | 846 | 60 | 0 | 0 | 1 ppb |
| Gc Mankato Hill LLC MN1070024 | 140 | 0 | 0 | 1 | 5 ppb |
| Hillcrest Health Care Center MN1070012 | 94 | 0 | 0 | 2 | 3 ppb |
| Eagle Lake MN1070002 | 3,268 | 0 | 0 | 0 | 1 ppb |
| Lake Crystal MN1070006 | 2,554 | 0 | 0 | 0 | 2 ppb |
| Mapleton MN1070013 | 1,756 | 0 | 0 | 0 | 2 ppb |
| Madison Lake MN1070007 | 1,017 | 0 | 0 | 0 | 0 ppb |
| Good Thunder MN1070005 | 583 | 0 | 0 | 0 | 2 ppb |
| South Bend Township MN1070026 | 325 | 0 | 0 | 0 | 1 ppb |
| Vernon Center MN1070019 | 323 | 0 | 0 | 0 | 1 ppb |
| Skyline MN1070018 | 289 | 0 | 0 | 0 | 0 ppb |
| Pemberton MN1070015 | 247 | 0 | 0 | 0 | 4 ppb |
| Rapidan Development Company, INC. MN1070016 | 164 | 0 | 0 | 0 | 2 ppb |
| Grantsburg Manufactured Home Community WI8070023 | 115 | 0 | 0 | 0 | 0 ppb |
| Riverbend Homes and More MN1070022 | 60 | 0 | 0 | 0 | 1 ppb |
| Terrace View East Condominium Assoc. MN1070025 | 38 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Blue Earth 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: 56034, 56037, 56055, 56068, 56078.
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.