Water Quality in ANCHORAGE, AK (99501)

EPA violation data for public water systems serving ZIP code 99501.

110

Total Violations

Health-Based

Monitoring / Reporting

Resolved

What does this mean?

98 of 110 violations have been resolved. 18 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 92 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: 103 Population served: 9,439

Violations Detail (110 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Surface Water Treatment Rule	Monitoring	N/A	N/A	Aug 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2025	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Aug 31, 2025	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	Aug 31, 2025	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	Jul 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Health-Based	N/A	N/A	Jun 30, 2025	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2025	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 26, 2025	Active	N/A
Groundwater Rule	Health-Based	N/A	N/A	May 1, 2025	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Health-Based	N/A	N/A	Oct 16, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Health-Based	N/A	N/A	Oct 16, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Oct 16, 2024	Active	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Sep 30, 2024	Active	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Sep 30, 2024	Active	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Sep 30, 2024	Active	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2024	Active	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2024	Active	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2024	Active	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 30, 2024	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jan 31, 2024	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jan 31, 2024	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jan 31, 2024	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jan 31, 2024	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 31, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 31, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 31, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 31, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Benzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
DICHLOROMETHANE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Xylenes, Total	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Carbon tetrachloride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Trichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
1,1-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Vinyl chloride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Increased risk of cancer
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Jan 30, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Xylenes, Total	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Benzene	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Liver problems; increased risk of cancer
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Carbon tetrachloride	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Liver problems; increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Increased risk of cancer
DICHLOROMETHANE	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Trichloroethylene	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Liver problems; increased risk of cancer
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jul 31, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 18, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 27, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Consumer Confidence Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jun 15, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jun 9, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jun 9, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jun 9, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 24, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2025(12)

Surface Water Treatment Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Interim Enhanced Surface Water Treatment Rule

Aug 31Resolved

Surface Water Treatment Rule

Aug 31Resolved

Surface Water Treatment Rule

Jul 31Resolved

Revised Total Coliform Rule

Jun 30Resolved

Interim Enhanced Surface Water Treatment Rule

Jun 30Resolved

Surface Water Treatment Rule

Jun 30Resolved

Consumer Confidence Rule

Jun 30Active

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

May 26Active

Groundwater Rule

May 1Active

2024(24)

Revised Total Coliform Rule

Dec 31Resolved

LEAD AND COPPER RULE REVISIONS

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

Oct 16Active

LEAD AND COPPER RULE REVISIONS

Oct 16Active

Consumer Confidence Rule

Sep 30Active

Consumer Confidence Rule

Sep 30Active

Consumer Confidence Rule

Sep 30Active

Consumer Confidence Rule

Sep 30Resolved

Surface Water Treatment Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Surface Water Treatment Rule

Jul 31Resolved

Surface Water Treatment Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jun 30Resolved

Consumer Confidence Rule

Jun 30Active

Consumer Confidence Rule

Jun 30Active

Consumer Confidence Rule

Jun 30Active

Surface Water Treatment Rule

May 31Resolved

Revised Total Coliform Rule

May 30Active

Revised Total Coliform Rule

Mar 31Resolved

Groundwater Rule

Jan 31Resolved

Groundwater Rule

Jan 31Resolved

Groundwater Rule

Jan 31Resolved

Groundwater Rule

Jan 31Resolved

How Does This Compare?

ANCHORAGE (99501) has 110 recorded violations, including 18 health-based. 12 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

NSF Certified Products → EPA Safe Drinking Water Guide →

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.

Water Quality in ANCHORAGE, AK (99501)

What does this mean?

Violations Detail (110 total)

Lead & Copper Levels

Violation Timeline

2025(12)

2024(24)

2023(32)

2022(31)

2021(11)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

UV Water Purifier

Nearby ZIP Codes

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