Water Quality in GROTON, MA (01450)

EPA violation data for public water systems serving ZIP code 01450.

28

Total Violations

0

Health-Based

28

Monitoring / Reporting

28

Resolved

What does this mean?

28 of 28 violations have been resolved. None of these are health-based violations — no contaminant levels exceeded federal safety limits. The remaining 28 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 13 Population served: 8,475

Violations Detail (28 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Public NoticeMonitoringN/AN/AFeb 18, 2025ResolvedN/A
Public NoticeMonitoringN/AN/AFeb 18, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AJan 8, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/ANov 30, 2024ResolvedN/A
Public NoticeMonitoringN/AN/AJun 17, 2024ResolvedN/A
Public NoticeMonitoringN/AN/AJun 17, 2024ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMay 7, 2024ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMar 31, 2024ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AAug 13, 2023ResolvedN/A
Public NoticeMonitoringN/AN/AJul 22, 2023ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(3)

Public Notice

75

Feb 18Resolved

Public Notice

75

Feb 18Resolved

Revised Total Coliform Rule

4B

Jan 8Resolved

2024(5)

Revised Total Coliform Rule

3A

Nov 30Resolved

Public Notice

75

Jun 17Resolved

Public Notice

75

Jun 17Resolved

Revised Total Coliform Rule

4B

May 7Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

How Does This Compare?

GROTON (01450) has 28 recorded violations, none of which are health-based. All violations have been resolved, which is a positive sign for current water quality. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

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

NSF Certified Products → EPA Safe Drinking Water Guide →

Always look for filters certified by NSF International for the specific contaminants you want to remove.

Nearby ZIP Codes

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