County · Minnesota
Otter Tail County, Minnesota: drinking water records
This overview covers 20 ZIP codes and 17 community water systems in Otter Tail 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 |
|---|---|---|---|---|---|
| Fergus Falls MN1560014 | 14,194 | 120 | 0 | 0 | 8 ppb |
| Perham MN1560023 | 3,421 | 120 | 0 | 0 | 3 ppb |
| Dalton MN1560008 | 209 | 0 | 0 | 1 | 0 ppb |
| Elizabeth MN1560028 | 168 | 0 | 0 | 10 | 0 ppb |
| Battle Lake Mobile Home Park MN1560004 | 31 | 0 | 0 | 5 | 0 ppb |
| River and Woods Mobile Home Park MN1560030 | 25 | 0 | 0 | 19 | 0 ppb |
| Pelican Rapids MN1560019 | 2,577 | 0 | 0 | 0 | 7 ppb |
| New York Mills MN1560017 | 1,287 | 0 | 0 | 0 | 0 ppb |
| Parkers Prairie MN1560018 | 1,023 | 0 | 0 | 0 | 0 ppb |
| Battle Lake MN1560001 | 918 | 0 | 0 | 0 | 2 ppb |
| Henning MN1560016 | 851 | 0 | 0 | 0 | 0 ppb |
| Ottertail MN1560032 | 694 | 0 | 0 | 0 | 0 ppb |
| Underwood MN1560026 | 380 | 0 | 0 | 0 | 0 ppb |
| Vergas MN1560029 | 358 | 0 | 0 | 0 | 5 ppb |
| Deer Creek MN1560007 | 329 | 0 | 0 | 0 | 0 ppb |
| Equinox Rei LLC Dellwood Estates WI1570503 | 70 | 0 | 0 | 0 | 0 ppb |
| Stony Bar Estates MN1560035 | 40 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Otter Tail 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: 56453, 56515, 56518, 56524, 56528, 56534, 56571, 56576, 56588.
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.