Water Quality in Norwich, CT (06331)
EPA violation data for public water systems serving ZIP code 06331.
Active Health Violations
8 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 79% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
5,145
Population
41
Water Systems
21
Violations (5yr)
8
Health-Based
Location
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Water Systems Serving This Area (41)
Norwich Public Utilities
Canterbury Elementary School
All resolvedDr. Helen Baldwin School
1 health-basedMeadows Apartments
Oak Harbor Village, Llc.
Town Hall
Dr. Helen Baldwin School (Well #2)
Better Val U Supermarkets, Inc.
Canterbury Childrens Academy
1 health-basedLuckys
1 health-basedCanterbury Municipal Offices
Hubbard Hill Apartments
5 health-basedCanterbury Fire Dept
Camp Horizons
Canterbury Road Apts
Lillan Washing
Yaworski Trucking
Edwin Tetreault
Wrights Mill Farm - Lodge
Edwin Tetreault
Faith Bible Church
Prudence Crandall Museum
Maurice'S Country Meat Market
Father Ricard
Fire Dept
David Hamburg
First Cong. Church
Calvary Chapel
Rodney Clark
Buck Meadow Campground
Canterbury Town Hall
Burnett'S Country Gardens
Calvary Chapel
George Coombs Foreman
Edwin Tetreault
Sampre Seara Inc
Michael Pappas
Rick Chaffee
Maurices Country Meat Market
Wrights Mill Farm - Pavilion
Lisbon River Road, Llc
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
At high levels, nitrate can cause blue baby syndrome in infants.
Annual water quality report delivery requirement.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Norwich (06331) has more violations than 79% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 21.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.