CTWC - CRYSTAL SYSTEM: EPA violation history, explained
CTWC - CRYSTAL SYSTEM has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 6,378, over 2,909 connections.
How this compares nationally
Out of 12,903 systems in this dataset, CTWC - CRYSTAL SYSTEM ranks 3,936th by violation burden (70th percentile) - 120 violations total, 4 health-baseds.
Against the CT average
CTWC - CRYSTAL SYSTEM's 4 health-based violations sit above the CT average of 2.6, across 73 systems statewide. See the lead and copper guide for why lead counts differently.
Most recent violation on record
CTWC - CRYSTAL SYSTEM's most recent violation on record is dated 2018-11-04, with the most recent health-based one dated 2004-01-07. Last reported to EPA: 06/29/2026.
The concern categories on record
CTWC - CRYSTAL SYSTEM'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 CTWC - CRYSTAL SYSTEM's record does not cover
Everything on this page is CTWC - CRYSTAL SYSTEM'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 CTWC - CRYSTAL SYSTEM's customers' taps is household plumbing, invisible to a system-level record ranked 3,936th of 12,903 by violation count. The guide to what this data misses covers that gap.