What's in PIEDRAS BLANCAS's water?
PIEDRAS BLANCAS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 3,351 people get their water from it, across 1,255 connections.
How this compares nationally
PIEDRAS BLANCAS has 43 violations on record in total, 7 of thems health-based - ranking it 2,625th of 12,903 systems by violation count, the 80th percentile nationally.
Against the PR average
PIEDRAS BLANCAS's 7 health-based violations sit within the PR average of 46.1, across 103 systems statewide. See the lead and copper guide for why lead counts differently.
Most recent violation on record
PIEDRAS BLANCAS's most recent violation on record is dated 2020-01-07, with the most recent health-based one dated 2007-01-08. Last reported to EPA: 06/05/2026.
The concern categories on record
PIEDRAS BLANCAS'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)
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 PIEDRAS BLANCAS's record does not cover
This is what PIEDRAS BLANCAS 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 PIEDRAS BLANCAS's customers' taps is household plumbing, invisible to a system-level record ranked 2,625th of 12,903 by violation count. The guide to what this data misses covers that gap.