Toksook Bay, AK: 6 Violations — 93/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Water systems serving Toksook Bay hold a strong EPA compliance record — the city places among the better-performing areas in AK with few health-based violations on file.
How Toksook Bay Compares
Data: EPA SDWIS Last verified: 2026-06-03
Toksook Bay Water: The Quick Version
- Your city's water systems recorded 6 violations in the past 5 years.
- Average lead level: 0.0056 mg/L.
- Homes built before 1986: 62% — older plumbing may contain lead solder.
- CDC health risk index: 15.88 — above typical levels.
Water Systems Serving Toksook Bay
One utility dominates residential water service in Toksook Bay, AK — out of 1 system in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Toksook Bay, Alaska, covering 1 community water system serving approximately 999 people.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Toksook Bay: A (93/100)
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
Toksook Bay water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0056 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 |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 4 | 1 |
| Lead | Inorganic | 2 | 1 |
| Total Coliform | Microbiological | 2 | 1 |
| Revised Total Coliform Rule | Microbiological | 2 | 1 |
| Contaminant 0700 | Other | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 99637 | A | 6 | 0 | Toksook Bay Water System |
All ZIP Codes in Toksook Bay
- 99637 [A] — 6 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 Toksook Bay
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 Toksook Bay
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Toksook Bay's Housing Stock?
With 62% 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
While newer cities carry lower aggregate plumbing risk from lead-era construction, Toksook Bay sits firmly in the older category. The median build year of 1971 indicates that more than half the housing stock was built before 1986, when lead solder was still legally used in residential copper plumbing — and a substantial portion likely predates 1970, when lead pipes were still commonly installed for service lines. These two thresholds together define the elevated plumbing risk environment that older housing cities carry, independent of what the municipal water supply delivers to the meter.
Over half of homes in Toksook Bay 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.
Protecting Children from Lead in Toksook Bay
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.
Locally, 62% of Toksook Bay homes carry interior plumbing from the era when lead solder was still permitted in new builds, and citywide monitoring approaches or crosses the EPA action benchmark. Households can find a draw-test kit and certified filtration through verified retailers.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Toksook Bay, AK