Chalkyitsik, AK: 22 Health Violations — 64/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
The systems supplying Chalkyitsik vary in performance across AK benchmarks — most meet minimum federal standards, but documented violations in select areas are on record.
How Chalkyitsik Compares
Data: EPA SDWIS Last verified: 2026-06-03
Chalkyitsik Water: The Quick Version
- Your city's water systems recorded 140 violations in the past 5 years.
- Average lead level: 0.0055 mg/L.
- Homes built before 1986: 38% — older plumbing may contain lead solder.
- Estimated remediation: $600 per household.
- CDC health risk index: 16.56 — above typical levels.
Water Systems Serving Chalkyitsik
Chalkyitsik, AK draws its water from one primary utility across 1 tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in Chalkyitsik, Alaska, covering 1 community water system serving approximately 103 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 22 health-based violations documented.
Home Safety Score
Average Home Safety Score for Chalkyitsik: C (64/100)
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
Chalkyitsik water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0055 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 | 68 | 1 |
| Fecal Coliform | Microbiological | 62 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 40 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 28 | 1 |
| Consumer Confidence Report Rule | Reporting | 26 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 99788 | C | 140 | 22 | Chalkyitsik Village Water |
All ZIP Codes in Chalkyitsik
- 99788 [C] — 140 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 Chalkyitsik
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 Chalkyitsik
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Chalkyitsik's Housing Stock?
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Two regulatory milestones define plumbing-era risk in residential housing: 1970, when lead pipes were still commonly installed for service lines, and 1986, when lead solder was banned from new copper plumbing. A median build year of 1981 places Chalkyitsik in the middle zone between those thresholds — with a meaningful share of housing predating both cutoffs. The distribution shown above breaks out those eras explicitly, clarifying where concentrated risk sits across the residential inventory.
Most homes in Chalkyitsik were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Chalkyitsik: Remediation Cost in Perspective
The Chalkyitsik equity share sits above the low tier but short of the range where remediation becomes a heavy financial burden — the cost-to-value ratio is moderate, and deliberate planning is the key practical lever for most homeowners.
Remediation costs are moderate relative to home values in Chalkyitsik. The estimated $300–$1,500 range is manageable for most homeowners but still worth budgeting for. Home values are 84% below the Alaska average.
Protecting Children from Lead in Chalkyitsik
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 Chalkyitsik — 38% 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.
What You Can Do in Chalkyitsik
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. Filters rated for E. coli can reduce the most common contaminant found in Chalkyitsik's water.
- Check your home's plumbing. With 38% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Chalkyitsik, AK