Ocwa, NY Water Quality
What's in Ocwa's water?
Ocwa has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 350,000 people get their water from it, across 100,948 connections.
Ocwa's record against the rest of the country
Ocwa has 4 violations on record in total, 2 of them health-based - ranking it 6,905th of 12,903 systems by violation count, the 46th percentile nationally.
Against the NY average
Ocwa's 2 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
Ocwa's most recent violation on record is dated 2010-01-12, with the most recent health-based one dated 2010-01-12. Last reported to EPA: 06/25/2026.
The concern categories on record
Ocwa'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:
- Lead & copper - flagged from: Lead and Copper Rule
- Microbial contamination / treatment technique - flagged from: Surface Water Treatment Rule
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What Ocwa's record does not cover
Everything on this page is Ocwa's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 4 logged violations can see. The guide to what this data misses covers that gap.