Water Quality in BAR HARBOR, ME (04609)

EPA violation data for public water systems serving ZIP code 04609.

448

Total Violations

43

Health-Based

405

Monitoring / Reporting

438

Resolved

What does this mean?

438 of 448 violations have been resolved. 43 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 405 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: 55 Population served: 11,573

Violations Detail (448 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A
Revised Total Coliform RuleHealth-BasedN/AN/AMay 31, 2025ActiveN/A
Revised Total Coliform RuleHealth-BasedN/AN/AMay 31, 2025ActiveN/A
Revised Total Coliform RuleHealth-BasedN/AN/AMay 31, 2025ActiveN/A
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(18)

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

2D

May 31Active

Revised Total Coliform Rule

2D

May 31Active

Revised Total Coliform Rule

2D

May 31Active

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

4C

May 31Resolved

Revised Total Coliform Rule

4C

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Public Notice

75

May 31Active

Public Notice

75

May 30Active

Public Notice

75

Apr 22Resolved

Public Notice

75

Apr 22Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

2024(68)

Lead and Copper Rule

65

Dec 2Resolved

Lead and Copper Rule

65

Dec 2Resolved

Revised Total Coliform Rule

2A

Oct 26Active

Revised Total Coliform Rule

2A

Oct 26Active

Nitrate

03

Sep 30Resolved

Nitrate

03

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Lead and Copper Rule

53

Jun 30Resolved

Lead and Copper Rule

53

Jun 30Resolved

Lead and Copper Rule

53

Jun 30Resolved

Public Notice

75

Jun 30Resolved

Public Notice

75

Jun 30Resolved

Public Notice

75

Jun 30Resolved

Public Notice

75

Jun 30Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

4C

May 31Resolved

Revised Total Coliform Rule

4C

May 31Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Resolved

Public Notice

75

May 30Active

Public Notice

75

May 30Active

Public Notice

75

May 30Active

Revised Total Coliform Rule

2B

May 24Resolved

Revised Total Coliform Rule

2B

May 24Resolved

Revised Total Coliform Rule

2B

May 24Resolved

Revised Total Coliform Rule

2B

May 24Resolved

Revised Total Coliform Rule

2A

Apr 30Resolved

Revised Total Coliform Rule

2A

Apr 30Resolved

Revised Total Coliform Rule

2A

Apr 30Resolved

Revised Total Coliform Rule

2A

Apr 30Resolved

How Does This Compare?

BAR HARBOR (04609) has 448 recorded violations, including 43 health-based. 10 remain unresolved. 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.

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.

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