Tap Water Quality Report for Greenwich, Connecticut

Last Provided Update:N/A
Next Expected Update:April 19, 2025

Track your tap water quality with EPA-verified data on contaminants, violations, and health guidelines, updated quarterly from official water system monitoring results.

Greenwich, Connecticut tap water has 83 total contaminants, with 3 being above EPA standards and 51 being above InTheTap suggested standards. There are 0 active violations. The primary water source is not specified, serving 0 residents.

Water Systems (4)

4 water systems serve Greenwich, Connecticut. Select one or more to filter the data below.

AQUARION-EASTERN FAIRFIELD COUNTY
Public Water System ID:CT0150011
Population Served:351,756
Primary Source:Surface water
Last Updated:Dec 23, 2024
Contact:
AQUARION-STAMFORD
Public Water System ID:CT1350011
Population Served:119,214
Primary Source:Surface water
Last Updated:Dec 23, 2024
Contact:
AQUARION-GREENWICH
Public Water System ID:CT0570011
Population Served:53,297
Primary Source:Surface water
Last Updated:Dec 23, 2024
Contact:
BRUNSWICK SCHOOL (LOWER & LOWER MIDDLE)
Public Water System ID:CT0579143
Population Served:567
Primary Source:Ground water
Last Updated:Dec 23, 2024
Contact:

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Water Quality Analysis

Comprehensive analysis of your water quality, showing both detected contaminants and violations history. Note that exceeding EPA contaminant levels in a single test doesn't always constitute a violation, as violations typically require sustained exceedances or failure to follow required treatment protocols.

Water Analysis

View detected contaminants and concentration levels for your water system(s).