Nikolski, AK Water Safety: 88/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Nikolski's tap water quality puts it in AK's upper tier — health-based violations are rare and the compliance record is consistently above average.
How Nikolski Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Nikolski Residents
- Homes built before 1986: 80% — older plumbing may contain lead solder.
- CDC health risk index: 10.71.
Nikolski's Water Providers
Across most of Nikolski, AK, residential water comes from a single utility. That provider sets rates, manages infrastructure maintenance, and files compliance reports with the EPA on behalf of the households it serves. Federal tracking data shows 1 system on record, but one carries the bulk of the service load.
Overview
We track water quality and home safety data for 1 ZIP code in Nikolski, Alaska (population ~1), covering 1 community water system serving approximately 34 people region-wide.
No EPA violations recorded across any ZIP codes in Nikolski — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Nikolski: A (88/100)
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
Nikolski water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Nikolski
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 99638 | A | Nikolski Village | 34 |
All ZIP Codes in Nikolski
- 99638 [A]
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.
Nikolski Community Health Snapshot
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
Nikolski Infrastructure Age
With 80% 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
What does a median build year of 1988 mean for water safety in Nikolski? It means the majority of the city's residential plumbing was installed before 1986, when lead solder was federally banned, and a large share may predate 1970, when lead pipes were commonly used — making plumbing age a central variable in household-level lead risk across much of the city.
Over half of homes in Nikolski 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.
Nikolski: Lead Risk & Vulnerable Populations
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.
Practically, the structural drivers in Nikolski — 80% pre-rule stock and citywide monitoring at or beyond the regulatory benchmark — make an in-home draw the practical way to translate aggregate averages into the specific conditions at one address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Nikolski, AK