What's in NORTHWESTERN W AND SD - OREGON WTLN 200's water?
NORTHWESTERN W AND SD - OREGON WTLN 200 has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 9,629 people through 2,867 service connections.
How this compares nationally
16 total violations and 10 health-based ones put NORTHWESTERN W AND SD - OREGON WTLN 200 at the 85th percentile nationally for violation burden, rank 1,994 of 12,903.
How NORTHWESTERN W AND SD - OREGON WTLN 200 compares within OH
Among the 394 OH systems in this dataset, the average is 5.5 health-based violations - NORTHWESTERN W AND SD - OREGON WTLN 200's 10 is above that. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for NORTHWESTERN W AND SD - OREGON WTLN 200 is from 2015-01-10 (health-based: 2015-01-10). Last reported to EPA: 05/15/2026.
What kind of problem, specifically
NORTHWESTERN W AND SD - OREGON WTLN 200'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)
- Disinfection byproducts - flagged from: TTHM
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 NORTHWESTERN W AND SD - OREGON WTLN 200 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. Between the utility's meter and NORTHWESTERN W AND SD - OREGON WTLN 200's customers' taps is household plumbing, invisible to a system-level record ranked 1,994th of 12,903 by violation count. The guide to what this data misses covers that gap.