Tanana, AK: 10 Health Violations — 72/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Tanana'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 Tanana Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Tanana Water
- Your city's water systems recorded 101 violations in the past 5 years.
- Average lead level: 0.0016 mg/L.
- Homes built before 1986: 58% — older plumbing may contain lead solder.
- Estimated remediation: $600 per household.
- CDC health risk index: 16.56 — above typical levels.
Who Supplies Your Water in Tanana
Supply infrastructure in Tanana, AK runs through a single dominant provider — the main entity among 1 tracked system through which rate decisions, infrastructure work, and federal compliance are managed.
Overview
We track water quality and home safety data for 1 ZIP code in Tanana, Alaska, covering 1 community water system serving approximately 309 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 10 health-based violations documented.
Home Safety Score
Average Home Safety Score for Tanana: B (72/100)
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
Tanana water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0016 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 |
|---|---|---|---|
| Fecal Coliform | Microbiological | 78 | 1 |
| E. coli | Microbiological | 74 | 1 |
| Consumer Confidence Report Rule | Reporting | 16 | 1 |
| Revised Total Coliform Rule | Microbiological | 16 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 8 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 99777 | B | 101 | 10 | Too'gha Inc. - in Tanana |
All ZIP Codes in Tanana
- 99777 [B] — 101 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.
Health Outcomes in Tanana
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
Top Contaminants in Tanana Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Tanana
With 58% 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
Plumbing risk in older housing is defined by two eras: the pre-1970 period when lead pipes were commonly used for service lines, and the 1970-to-1986 period when lead solder remained standard in copper plumbing until the federal ban. Tanana's median build year of 1985 lands in a range where both eras are heavily represented in the housing stock. That creates an elevated aggregate environment for plumbing-related lead exposure — one that city-level water quality averages don't capture, because the risk sits inside individual properties rather than in the distribution system.
Over half of homes in Tanana 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.
Cost Context: What Remediation Means for Tanana Homeowners
At current valuations, Tanana sits in the low remediation-share tier — the equity impact of fixing documented issues is proportionally minor.
Remediation costs in Tanana are relatively low compared to home values. The $300–$1,500 estimated range is a small fraction of median property value. Home values are 68% below the Alaska average.
Lead Exposure Risk for Children in Tanana
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.
58% — that captures the slice of Tanana housing dating from before the federal ban on solder containing lead. It pairs with aggregate utility readings that either approach or cross 0.015 mg/L, the benchmark set under the EPA Lead and Copper Rule. Together, the two figures shift one-home reads into a standard household-level confirmation, particularly for families with kids. A certified lead-removal filter is available through retailer-verified channels if a kit returns results that warrant additional measures.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Tanana, AK