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Official EPA SDWIS Verified ReportWater Quality & Testing GuideHistorical Record: 2 Past Advisory Event(s)

ZIP Code 99524 Water Quality & Testing Report

Anchorage, AK · Municipality of Anchorage County · Updated for 2026

Sahajul HaqueCompiled & verified by Sahajul Haque from official EPA SDWIS records
Public Health & Medical Notice: Drinking water quality data on this page reflects historical compliance records submitted under the Safe Drinking Water Act. This information does not constitute medical advice or a real-time safety guarantee. If you are pregnant, nursing, preparing infant formula, or immunocompromised, consult a healthcare provider. Boiling water kills biological pathogens, but does NOT remove chemical contaminants like lead, arsenic, or PFAS.
Quick EPA Verified Answer

Is Tap Water Safe to Drink in ZIP 99524 (Anchorage, AK)?

Caution / Filtration Recommended: Tap water in ZIP code 99524 (Anchorage, AK) has compliance concerns, earning an EPA Safety Grade of C (66/100) due to 20 health violation(s) and 1.6 ppb lead. While treated by Moa Municipality of Anchorage, residents are advised to use an NSF/ANSI 53 certified water filter for drinking and cooking.

Safety Score
C

Water Safety Grade

Fair — Some compliance concerns

Health Violations

20

Total Violations

292

Lead Risk

N/A

Contaminants

5

About Tap Water in ZIP Code 99524

Tap water in ZIP code 99524 (Anchorage, AK) is distributed by Moa Municipality of Anchorage (EPA ID: AK2210906), serving approximately 221,351 residents. Based on EPA Safe Drinking Water Act compliance records, this system receives a water safety grade of C with a composite quality score of 66/100.

Water System

Moa Municipality of Anchorage

EPA ID: AK2210906

Water Source

Surface Water

Population Served

221,351 residents

County

Municipality of Anchorage County, Alaska

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Lead Levels in ZIP 99524

EPA action level: 15 ppb | Public health goal: 0 ppb

Lead Level: 1.6 ppb — Very Low

The 90th percentile lead level in 99524 is 1.6 ppb. This meets the EPA action level of 15 ppb. Health experts recommend a target of 0 ppb for optimal safety.
Lead Level (90th percentile)
1.60 ppb (0.0016 mg/L)
Copper Level (90th percentile)

EPA action level: 1.3 mg/L

2.1 mg/L
Lead Exposure Risk Rating
Unknown
Note: Lead levels above are the 90th percentile from EPA monitoring — meaning 90% of samples were at or below this level. Even "undetected" tap water lead doesn't account for lead leaching from home plumbing. If your home was built before 1986, individual tap testing is recommended.
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Water Hardness & Mineral Content

Grains per gallon (GPG) & Parts per million (PPM / mg/L)

Classification: Moderately Hard6.8 GPG · 117 mg/L

Water in ZIP 99524 is Moderately Hard (117 mg/L / 6.8 GPG). It contains beneficial natural minerals like calcium and magnesium without causing heavy scale accumulation.

Recommendation: A water softener is optional. Regular maintenance of hot water appliances is recommended.
Hardness (GPG)

Grains per gallon

6.8 GPG
Hardness (PPM / mg/L)

Parts per million CaCO3

117 mg/L
Appliance Scaling Risk
Low / Moderate

Official EPA SDWIS Database Entry

Utility: Moa Municipality of Anchorage · PWSID: AK2210906

Verify on EPA.gov
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Violation History

Past 5 years — EPA SDWIS data

Moa Municipality of Anchorage has recorded 20 health-based violations out of 292 total violations over the past 5 years. 29 violations remain unresolved in EPA tracking records. Additionally, 2 boil water advisory/advisories were active during this period.

Total Violations (5 yr)
292
Health-Based Violations
20
Unresolved Violations
29
Boil Water Advisories
2
Compliance Risk
Critical

Regulatory compliance risk for this utility is rated Critical based on past reporting and enforcement records.

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Contaminants Detected

Contaminants with health-based violations on record

EPA records identify 5 contaminants with health-based violations in the past 5 years: E. coli, Fecal Coliform, Chlorite, Contaminant 0700, Stage 2 DBP Rule.

E. coliFecal ColiformChloriteContaminant 0700Stage 2 DBP Rule

⚖ Enforcement Actions

EPA or state regulators have issued 10 enforcement actions to address compliance lapses.
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Water Source & Environmental Factors

Surface Water

This system draws water from lakes, rivers, or reservoirs. Surface water is treated to remove sediment, microorganisms, and chemical contaminants before reaching taps.

Water Source Type
Surface Water
CCR Source Classification
Surface Water
EPA Radon Zone

Lower potential

Zone 3

EPA Radon Zone 3 — lower radon potential, though the EPA still recommends testing all homes.

Water Quality Testing in ZIP 99524

Tap Water & Well Testing Recommendations

Residents in ZIP code 99524 served by Moa Municipality of Anchorage can test tap water or private well systems to verify water purity. Testing detects hidden contaminants before they impact family health.

Tap Water Testing Steps

  • 1.Conduct a certified lead check if your home was constructed before 1986.
  • 2.Use certified lab testing kits rather than uncalibrated test strips for regulated compliance.
  • 3.Sample water from both your kitchen faucet and water heater to compare line purity.

Private Well Testing Steps

  • •Test for Coliform bacteria and Nitrates annually.
  • •Test for heavy metals, radon, and PFAS every 3 years.
  • •Send samples to a state-certified drinking water laboratory recognized by Alaska Department of Environmental Conservation.
Certified Lab Testing: Always use an EPA-certified drinking water laboratory in AK for formal legal or real estate compliance testing.

🛡 What Should You Do? — ZIP 99524 Recommendations

  • ⚠ Use a certified NSF/ANSI 53 filter for drinking and cooking water if you have young children
  • ⚠ Never give unfiltered tap water to infants in formula — use certified bottled or filtered water
  • ⚠ Request a copy of the Consumer Confidence Report to see what was detected and when
  • ⚠ Call the EPA Safe Drinking Water Hotline: 1-800-426-4791

Recommended Water Treatment Systems:

🏺

NSF 53 Lead Pitcher Filter

Specifically certified to reduce lead and copper at the tap.

Lead Filter Guide →
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NSF 58 Under-Sink RO System

Advanced filtration for PFAS, fluoride, nitrates, and organic chemicals.

RO System Guide →

Frequently Asked Questions — ZIP 99524 Water Quality

Is tap water safe to drink in ZIP code 99524?+
Tap water in 99524 (Anchorage, AK) meets major standards but has a grade of C due to minor past violations. Vulnerable populations may want to use a certified filter as a precaution.
How do I get my water tested in ZIP 99524 (Anchorage, AK)?+
To test water quality in ZIP 99524, you can order a certified drinking water test kit or send water samples to an EPA/NELAP certified laboratory in AK. Certified testing checks for lead, coliform bacteria, nitrates, hardness, and PFAS that standard test strips miss. Contact Alaska Department of Environmental Conservation for a list of certified regional labs.
How hard is the tap water in 99524?+
Tap water in 99524 is classified as Moderately Hard with an estimated mineral hardness of 117 mg/L (6.8 GPG). A water softener is optional. Regular maintenance of hot water appliances is recommended.
Should I test private well water in 99524?+
Yes. Unlike municipal systems, private wells in 99524 are not regulated by the EPA or local utilities. Private well owners should test their water annually for coliform bacteria and nitrates, and every 3 to 5 years for heavy metals (lead, arsenic) and volatile organic compounds.
What is the lead level in 99524 tap water?+
The 90th percentile lead level in 99524 is 1.6 ppb. The EPA action level is 15 ppb. This is below the EPA action level.
Is there an active boil water notice in 99524?+
EPA historical records indicate 2 boil water event(s) occurred within this system. Always check with your local water provider (Moa Municipality of Anchorage) for real-time emergency advisories.
Who provides tap water to 99524?+
Tap water in ZIP code 99524 is provided by Moa Municipality of Anchorage (EPA ID: AK2210906), serving approximately 221,351 residents.
What water filter should I use in 99524?+
Based on water metrics for 99524, we recommend Reverse Osmosis (PFAS & Lead). Look for certifications such as NSF/ANSI 53 (Chemical Contaminants), NSF/ANSI 42 (Aesthetic Effects).

Data Sources & Methodology

Water quality data for ZIP code 99524 is compiled from the EPA Safe Drinking Water Information System (SDWIS), EPA ECHO enforcement database, UCMR5 unregulated contaminant monitoring, and Consumer Confidence Reports filed by Moa Municipality of Anchorage. Safety scores are composite metrics derived from violation history, lead levels, enforcement actions, and infrastructure risk indicators. Data reflects a 5-year monitoring window. Last dataset update: 2024. View EPA source data →