Adak, AK: 6 Health Violations — 62/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Water systems across Adak produce average compliance results for AK overall — pockets with documented violations exist, and the variation between areas makes checking the specific system serving a given address the most useful step for residents here.
How Adak Compares
Data: EPA SDWIS Last verified: 2026-06-03
Adak Water: The Quick Version
- Your city's water systems recorded 40 violations in the past 5 years.
- Average lead level: 0.013 mg/L.
- Homes built before 1986: 70% — older plumbing may contain lead solder.
- Estimated remediation: $600 per household.
- CDC health risk index: 10.71.
Water Systems Serving Adak
The structure of water supply in Adak, AK is straightforward: one utility provides the bulk of residential service among 1 tracked system, concentrating rate-setting and infrastructure decisions under a single organization.
Overview
We track water quality and home safety data for 1 ZIP code in Adak, Alaska (population ~141), covering 1 community water system serving approximately 325 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. 6 health-based violations documented.
Home Safety Score
Average Home Safety Score for Adak: C (62/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Adak water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0130 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| E. coli | Microbiological | 42 | 1 |
| Revised Total Coliform Rule | Microbiological | 18 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 10 | 1 |
| Consumer Confidence Report Rule | Reporting | 8 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 99546 | C | 40 | 6 | Adak Utilities |
All ZIP Codes in Adak
- 99546 [C] — 40 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
CDC Health Data for Adak
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Adak
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Adak's Housing Stock?
With 70% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Because the majority of Adak's housing predates 1986, when lead solder was banned from new plumbing, the median build year of 1988 reflects a city where lead-era plumbing materials are common rather than exceptional.
Over half of homes in Adak were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Adak: Remediation Cost in Perspective
While no remediation project is entirely without cost, the relationship between estimated remediation and property values in Adak is notably favorable — the equity share is small enough that the household financial perspective is one of proportionality rather than pressure, and most homeowners can treat it as routine planning rather than a significant financial event.
Remediation costs in Adak are relatively low compared to home values. The $300–$1,500 estimated range is a small fraction of median property value. Home values are 61% below the Alaska average.
Protecting Children from Lead in Adak
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted — but 70% of the Adak inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Adak
- Test your water at home. City-level data shows averages — your tap may differ. Lead testing is especially recommended given the area's lead levels.
- Install a certified water filter. Filters rated for E. coli can reduce the most common contaminant found in Adak's water.
- Check your home's plumbing. With 70% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Adak, AK