Water Quality in Norwich, CT (06320)
EPA violation data for public water systems serving ZIP code 06320.
Active Health Violations
3 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 70% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
27,703
Population
25
Water Systems
12
Violations (5yr)
3
Health-Based
Location
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Water Systems Serving This Area (25)
Norwich Public Utilities
Pachaug Marina Campground
Cross Sound Ferry
Crystal Lake Associates - 111/113
Pequot Golf Club And Restaurant
1 health-basedPequot Health Center
Naval Submarine Base
Ridgewoood Park Co
Mr Vescovi,Arts Exxon
Keith Marquand
Crystal Lake Associates-73
Arnold Lauall
Lake Williams Campground
1 health-basedKeith Marquand
The Williams School Ballfield
B.O.Q. Investment Inc
1 health-basedCt Behavioral Health (United Family)
Mrs Weingarten
777, 779, 781 & 783 North Street
Pequot Treatment Center
Pequot Treatment Center
712 Route 163
Hopeville Hideaway Rv Park And Campgroun
All resolvedLittle Brook Plaza
Campers World (Nowakowski Rd. Well)
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Norwich (06320) has more violations than 70% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 12.
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.
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.