County · North Dakota
Grand Forks County, North Dakota: drinking water records
This overview covers 16 ZIP codes and 8 community water systems in Grand Forks County. It also stands in for 0 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 |
|---|---|---|---|---|---|
| Grand Forks Regional WTP ND1800410 | 57,339 | 120 | 1 | 0 | 8.9 ppb |
| East Central Regional Wd-Gf ND1801062 | 5,995 | 60 | 0 | 0 | 0 ppb |
| Agassiz Water Users District ND1801056 | 3,438 | 60 | 0 | 0 | 3.1 ppb |
| Larimore City of ND1800550 | 1,346 | 60 | 0 | 0 | 1.7 ppb |
| Northwood City of ND1800753 | 945 | 0 | 0 | 0 | 1.0 ppb |
| Emerado City of ND1800311 | 414 | 0 | 0 | 0 | 0 ppb |
| Arvilla Water Users Association ND1800036 | 180 | 0 | 0 | 0 | 2.9 ppb |
| Forest River Colony ND1801456 | 100 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Grand Forks County
No ZIP report in this county is published yet.
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.