Cornwall-on-Hudson, NY Water Quality
Is Cornwall-on-Hudson's water safe to drink?
Cornwall-on-Hudson has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 9,700 people through 2,671 service connections.
Cornwall-on-Hudson's record against the rest of the country
Out of 12,903 systems in this dataset, Cornwall-on-Hudson ranks 4,629th by violation burden (64th percentile) - 243 violations total, 3 health-based.
Against the NY average
Cornwall-on-Hudson's 3 health-based violations sit within the NY average of 4.3, across 452 systems statewide. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
Cornwall-on-Hudson's most recent violation on record is dated 2022-03-08, with the most recent health-based one dated 2004-01-10. Last reported to EPA: 06/25/2026.
The concern categories on record
Cornwall-on-Hudson'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); Surface Water Treatment Rule
- Synthetic organic chemicals / pesticides / VOCs - flagged from: Carbon, Total
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 Cornwall-on-Hudson's record does not cover
Everything on this page is Cornwall-on-Hudson's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Between the utility's meter and Cornwall-on-Hudson's customers' taps is household plumbing, invisible to a system-level record ranked 4,629th of 12,903 by violation count. The guide to what this data misses covers that gap.