Drinking Water Systems in NORWALK, Connecticut

5 water systems are reported for this city, with a combined service population of 452,849. The systems have 2 EPA violation records in the five-year period ending June 30, 2026.

Water Systems Serving NORWALK

EPA Contaminant Categories in Historical Violation Records

Consumer Confidence Rule10 records
Coliform (TCR)9 records
Aldicarb3 records
Heptachlor epoxide3 records
Total Polychlorinated Biphenyls (PCB)3 records
Glyphosate3 records
OXAMYL3 records
CARBON, TOTAL3 records
2,4-D3 records
Methoxychlor2 records

Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.