What's in Long Prairie's water?
Long Prairie has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 3,744 people through 1,149 service connections.
Long Prairie's record against the rest of the country
Out of 12,903 systems in this dataset, Long Prairie ranks 8,607th by violation burden (33th percentile) - 6 violations total, 1 health-based.
How Long Prairie compares within MN
Long Prairie's 1 health-based violations sit above the MN average of 0.8, across 254 systems statewide. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for Long Prairie is from 2003-01-10 (health-based: 2003-01-10). Last reported to EPA: 05/28/2026.
What kind of problem, specifically
Long Prairie's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What this data is and is not
Everything on this page is Long Prairie's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 1 health-based violation on file for Long Prairie - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.