Tok, AK: 10 Violations — 81/100 (2026)
2 ZIP codes · 1 water system · Updated 2026-06-03
Compared to statewide averages in AK, Tok scores well — health violations are below the norm and systems generally operate within federal standards.
How Tok Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Tok Residents
- Your city's water systems recorded 10 violations in the past 5 years.
- Average lead level: 0.0046 mg/L.
- CDC health risk index: 13.24 — above typical levels.
Tok's Water Providers
A single utility carries the primary residential water load in Tok, AK — the dominant provider across 1 federally tracked system.
Overview
We track water quality and home safety data for 2 ZIP codes in Tok, Alaska, covering 1 community water system serving approximately 1,790 people.
2 of 2 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Tok: B (81/100)
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
Tok water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0046 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 2 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 9 | 2 |
| Total Organic Carbon | Disinfection Byproducts | 3 | 2 |
| Stage 1 DBP Rule | Treatment Technique | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 99779 | B | 5 | 0 | Tetlin Utility System |
| 99780 | B | 5 | 0 | Tetlin Utility System |
All ZIP Codes in Tok
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.
Tok 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
What's in Tok's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Tok: 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.
Lead risk in Tok appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Tok, AK