Water Quality in Norwich, CT (06378)
EPA violation data for public water systems serving ZIP code 06378.
Active Health Violations
11 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 91% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
5,555
Population
46
Water Systems
61
Violations (5yr)
11
Health-Based
Location
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Water Systems Serving This Area (46)
Norwich Public Utilities
Lord S Point Assn
Classee Water System - Latimer Point
All resolvedPine Point School-Mitchell
1 health-basedPine Point School-Campbell
3 health-basedCoveside Marina (Harstan Of Stonington)
Kingdom Of The Hawk
Waterview Business Park
1 health-basedKnollwood Plaza
All resolvedQuambog, Llc
176 Rte 81
2 health-basedQuinlan Enterprise Building
1 health-basedA Child'S Garden Inc
Tongue And Groove Restaurant
Open Door Baptist Church
Mystic Rod & Gun Club
Fair Acres Trailer Park
Old Mystic Methodist Episcopal
Barn Restaurant
Mystic Oil
Stonington Historical Society
Medical & Dental Office Bldg
Subaru Dealership
Stonington Country Club Inc.
Hero Holdings Llc
1 health-basedKing Cove Marina
Denison Pequotsepos Nature Center, Inc.
America'S Best Value Inn
Cangelos Cntr
Saltwater Farm Vineyard
2 health-basedSeebreeze Stables
Stonington Motel
Mystic Rod & Gun Club
Stonington Motel
Lords Point
Wequetequock Cove Boat Co
Seebreeze Stables
Road Church
Seaport Ford
Rawley ,Pequot Golf Club
48 Lords Hill Rd-Mystic Center Preschool
Rev M Bilhorn
Stonington Garage
Stanley Watsily
Sea Breeze Motel
Wheeler Brook Trailer Park
Contaminants Found
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
Copper (Cu)
Exceeds limitSampled: Jul 2024
How Does This Compare?
Norwich (06378) has more violations than 91% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 61.
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.