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Community Water System · PWS AK2210906

Moa Municipality of Anchorage

Anchorage, Alaska 99519 - drinking water served from surface water sources to 221,351 people, tracked in EPA SDWIS and UCMR5.

221,351
People served
521
EPA violations
0
Health-based
2 PFAS
UCMR5 result

The verdict

EPA records 521 drinking-water violations at Moa Municipality of Anchorage - above the Alaska per-system average, and UCMR5 testing detected 2 PFAS compounds.

521
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
221,351
People served by this system
2
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Moa Municipality of Anchorage

Moa Municipality of Anchorage is a local-owned community water system that delivers drinking water to 221,351 residents in Anchorage, Alaska (Anchorage Municipality County) through 59,801 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 521 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 422 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is cis-1,2-Dichloroethylene, recorded in 22 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 2 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 11.2 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Alaska, EPA tracks 1,326 public water systems serving 862,218 people, with 267,144 cumulative violations and 13,963 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 201.5 violations. Statewide, 10 of 30 UCMR5-tested systems have reported PFAS detections (33.3%).

Moa Municipality of Anchorage's 521 violations sit above the Alaska average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

2 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
221,351
Total Violations
521
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
59,801
County
Anchorage Municipality
School/Daycare
No
MCL Violations
0
Monitoring Violations
422
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
cis-1,2-Dichloroethylene MR 22 1994
1,2-Dichloropropane MR 22 1994
Ethylbenzene MR 22 1994
Styrene MR 22 1994
Tetrachloroethylene MR 22 1994
o-Dichlorobenzene MR 22 1994
1,1,2-Trichloroethane MR 22 1994
Toluene MR 22 1994
trans-1,2-Dichloroethylene MR 22 1994
CHLOROBENZENE MR 22 1994
1,2,4-Trichlorobenzene MR 21 1994
DICHLOROMETHANE MR 21 1994
CYANIDE MR 16 1998
1,1,1-Trichloroethane MR 14 1994
Carbon tetrachloride MR 14 1994
1,1-Dichloroethylene MR 14 1994
Xylenes, Total MR 14 1994
Trichloroethylene MR 14 1994
Benzene MR 14 1994
1,2-Dichloroethane MR 14 1994
p-Dichlorobenzene MR 14 1994
Combined Radium (-226 and -228) MR 12 2008
Consumer Confidence Rule Other 3 2011
CARBON, TOTAL MR 3 2019
Nitrate MR 2 2016
TTHM MR 2 2022
Total Haloacetic Acids (HAA5) MR 2 2022
Methoxychlor MR 1 1987
Toxaphene MR 1 1987
2,4-D MR 1 1987

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 5 of 696 samples detected PFAS.

Contaminant Date Result MRL Status
PFUnA 9/14/2023 <2.00 ppt 2.00 ppt Not Detected
PFMPA 9/14/2023 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 9/14/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 9/14/2023 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 9/14/2023 <5.00 ppt 5.00 ppt Not Detected
11Cl-PF3OUdS 9/14/2023 <5.00 ppt 5.00 ppt Not Detected
PFDoA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFBA 9/14/2023 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 9/14/2023 <2.00 ppt 2.00 ppt Not Detected
PFDA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 9/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFBS 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
ADONA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 9/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpS 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeS 9/14/2023 <4.00 ppt 4.00 ppt Not Detected
NFDHA 9/14/2023 <20.00 ppt 20.00 ppt Not Detected
PFPeA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFOS 9/14/2023 <4.00 ppt 4.00 ppt Not Detected
NFDHA 9/14/2023 <20.00 ppt 20.00 ppt Not Detected
6:2 FTS 9/14/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 9/14/2023 <5.00 ppt 5.00 ppt Not Detected
PFMPA 9/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpS 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeS 9/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFBA 9/14/2023 <5.00 ppt 5.00 ppt Not Detected
PFDA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 9/14/2023 <5.00 ppt 5.00 ppt Not Detected
ADONA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 9/14/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 9/14/2023 <5.00 ppt 5.00 ppt Not Detected
PFUnA 9/14/2023 <2.00 ppt 2.00 ppt Not Detected
PFDoA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 9/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 9/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFNA 9/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxS 9/14/2023 3.50 ppt 3.00 ppt Detected
PFHpA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 9/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 9/14/2023 <3.00 ppt 3.00 ppt Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Moa Municipality of Anchorage.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID AK2210906 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Alaska Drinking Water Authority

Alaska's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find AK regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Lead and Copper Rule MR 1 SDWIS / AK2210906 / 5000
2022 TTHM MR 2 SDWIS / AK2210906 / 2950
2022 Total Haloacetic Acids (HAA5) MR 2 SDWIS / AK2210906 / 2456
2019 CARBON, TOTAL MR 3 SDWIS / AK2210906 / 2920
2016 Nitrate MR 2 SDWIS / AK2210906 / 1040
2011 Consumer Confidence Rule Other 3 SDWIS / AK2210906 / 7000
2008 Combined Radium (-226 and -228) MR 12 SDWIS / AK2210906 / 4010
2008 Gross Alpha, Excl. Radon and U MR 1 SDWIS / AK2210906 / 4000
2008 Combined Uranium MR 1 SDWIS / AK2210906 / 4006
1999 Surface Water Treatment Rule MR 1 SDWIS / AK2210906 / 0200
1999 Coliform (TCR) MR 1 SDWIS / AK2210906 / 3100
1998 CYANIDE MR 16 SDWIS / AK2210906 / 1024
1994 cis-1,2-Dichloroethylene MR 22 SDWIS / AK2210906 / 2380
1994 1,2-Dichloropropane MR 22 SDWIS / AK2210906 / 2983
1994 Ethylbenzene MR 22 SDWIS / AK2210906 / 2992

How Moa Municipality of Anchorage Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Moa Municipality of Anchorage Alaska avg Federal benchmark
Total violations 521 201.5 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 10.5 Indicates a contaminant exceeded a federal MCL
PFAS detection 2 compounds 33.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 221,351 650 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,326 regulated public water systems in Alaska.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Moa Municipality of Anchorage water safe to drink? ▼
Moa Municipality of Anchorage (PWS ID: AK2210906) has 521 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 2 PFAS compounds found. This system serves 221,351 people using Surface Water sources.
How many people does Moa Municipality of Anchorage serve? ▼
Moa Municipality of Anchorage serves 221,351 people in Anchorage, Alaska. It is a Local-owned system using Surface Water water sources with 59,801 service connections.
What type of violations does Moa Municipality of Anchorage have? ▼
Moa Municipality of Anchorage has 521 total violations: 0 health-based violations (MCL exceedances or treatment failures), 422 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Moa Municipality of Anchorage water? ▼
Yes. UCMR5 testing detected 2 PFAS compounds in Moa Municipality of Anchorage's water supply: PFHxS, PFOA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Moa Municipality of Anchorage use? ▼
Moa Municipality of Anchorage uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.