Cocos, PR Water Quality
Is Cocos's water safe to drink?
Cocos has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 9,930, over 3,719 connections.
Ranked against every other system in this dataset
399 total violations and 19 health-based ones put Cocos at the 93th percentile nationally for violation burden, rank 921 of 12,903.
Against the PR average
Among the 120 PR systems in this dataset, the average is 48.9 health-based violations - Cocos's 19 is at or below that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
Cocos's most recent violation on record is dated 2020-01-10, with the most recent health-based one dated 2016-01-01. Last reported to EPA: 06/05/2026.
The concern categories on record
Cocos'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)
- Nitrate / nitrite - flagged from: Nitrate
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 Cocos's record does not cover
This is what Cocos 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 - 19 health-based violations on file for Cocos - 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.