TRI-COUNTY RURAL WATER SYSTEM: EPA violation history, explained
TRI-COUNTY RURAL WATER SYSTEM has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 2,190 people through 876 service connections.
TRI-COUNTY RURAL WATER SYSTEM's record against the rest of the country
Out of 12,903 systems in this dataset, TRI-COUNTY RURAL WATER SYSTEM ranks 1,223th by violation burden (91th percentile) - 67 violations total, 15 health-baseds.
How TRI-COUNTY RURAL WATER SYSTEM compares within SD
Among the 74 SD systems in this dataset, the average is 3.0 health-based violations - TRI-COUNTY RURAL WATER SYSTEM's 15 is above that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for TRI-COUNTY RURAL WATER SYSTEM is from 2022-01-12 (health-based: 2009-01-03). Last reported to EPA: 06/17/2026.
What kind of problem, specifically
TRI-COUNTY RURAL WATER SYSTEM'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: Interim Enhanced Surface Water Treatment Rule
- Disinfection byproducts - flagged from: TTHM; Total Haloacetic Acids (HAA5)
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
This is what TRI-COUNTY RURAL WATER SYSTEM reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. This record - 15 health-based violations on file for TRI-COUNTY RURAL WATER SYSTEM - 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.