Napakiak, AK: 1 Health Violation — 95/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
How does Napakiak tap water hold up under EPA scrutiny? Above average for AK — documented violations are uncommon and the safety grade reflects a clean overall record.
How Napakiak Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Napakiak Residents
- Your city's water systems recorded 17 violations in the past 5 years.
- Average lead level: 0.0058 mg/L.
- Homes built before 1986: 46% — older plumbing may contain lead solder.
- Estimated remediation: $300 per household.
- CDC health risk index: 15.88 — above typical levels.
Napakiak's Water Providers
Most residential addresses in Napakiak, AK are served by a single water utility — the dominant system among the 1 provider tracked in federal data.
Overview
We track water quality and home safety data for 1 ZIP code in Napakiak, Alaska, covering 1 community water system serving approximately 737 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 1 health-based violation documented.
Home Safety Score
Average Home Safety Score for Napakiak: A (95/100)
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
Napakiak water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0058 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 | 18 | 1 |
| Gross Beta | Radionuclides | 8 | 1 |
| Lead | Inorganic | 2 | 1 |
| Total Organic Carbon | Disinfection Byproducts | 2 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 99634 | A | 17 | 1 | Napakiak Washeteria |
All ZIP Codes in Napakiak
- 99634 [A] — 17 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.
Napakiak 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 Napakiak's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Napakiak Infrastructure Age
With 46% 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
Tap water lead levels are shaped by two factors: what the utility delivers, and what the household plumbing adds to it. Older homes contribute disproportionately to that second variable because lead solder was standard in copper plumbing before 1986, and lead pipes were common before 1970. In Napakiak, where the median build year is 1982, a substantial share of the housing stock falls into these older categories. The bar chart above breaks out the pre-1970, 1970-to-1986, and post-1986 segments — the key ages for understanding where plumbing-era risk concentrates across the city.
Most homes in Napakiak 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.
How Remediation Costs Compare in Napakiak
Placing remediation in the context of Napakiak's property market, the equity share is low — most homeowners here are weighing a financial commitment that fits comfortably within routine property planning, far from the threshold where remediation becomes a material equity decision rather than a standard upkeep consideration.
Remediation costs in Napakiak are relatively low compared to home values. The $150–$600 estimated range is a small fraction of median property value. Home values are 84% below the Alaska average.
Napakiak: 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.
46% of Napakiak housing dates to the pre-rule era, alongside aggregate readings hovering at the federal action mark — household-level confirmation through a draw-test kit fits the local picture.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Napakiak, AK