NEGROS: EPA violation history, explained
NEGROS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 14,939 people get their water from it, across 5,595 connections.
How this compares nationally
218 total violations and 105 health-based ones put NEGROS at the 99th percentile nationally for violation burden, rank 71 of 12,903.
How NEGROS compares within PR
PR's 103 covered systems average 46.1 health-based violations each; NEGROS carries 105, more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for NEGROS is from 2020-01-07 (health-based: 2012-01-04). Last reported to EPA: 06/05/2026.
What kind of problem, specifically
NEGROS'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); Interim Enhanced Surface Water Treatment Rule; Surface Water Treatment Rule
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
NEGROS's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. Between the utility's meter and NEGROS's customers' taps is household plumbing, invisible to a system-level record ranked 71th of 12,903 by violation count. The guide to what this data misses covers that gap.