Water Quality in Norwich, CT (06338)

EPA violation data for public water systems serving ZIP code 06338.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

27

Population

4

Water Systems

10

Violations (5yr)

1

Health-Based

Location

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Water Systems Serving This Area (4)

Norwich Public Utilities

Surface water 36,163 people served
0 violations
Lead tested: 1.5 ppb (limit: 15 ppb)

Mashantucket Pequot Tribal Nation

All resolved
Groundwater under influence of surface water 17,050 people served
3 violations (5yr) · All resolved
Lead tested: 0 ppb (limit: 15 ppb)

Preston Plains Water Company

1 health-based
Groundwater 550 people served
7 violations (5yr) · 1 health-based
Lead tested: 5.3 ppb (limit: 15 ppb)

Randalls Ordinary Restaurant

Groundwater 50 people served
0 violations

Contaminants Found

Revised Total Coliform RuleHealth-Based

Missed testing deadlines — not a detection of bacteria.

1 violation
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

7 violations
Has active
Lead and Copper RuleMonitoring

Lead and copper testing requirement. Lead exposure can cause developmental harm in children.

2 violations
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
1.5 ppb measured Action level: 15 ppb

Sampled: Jan 2025

How Does This Compare?

Norwich (06338) has more violations than 67% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 10.

Fewer violations 67th percentile More violations

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.

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