Kwigillingok, AK: 134 Violations — 81/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Based on current monitoring, Kwigillingok holds an above-average drinking water safety record for AK — violations are infrequent and typically minor when they do appear.
How Kwigillingok Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Kwigillingok Residents
- Your city's water systems recorded 134 violations in the past 5 years.
- Average lead level: 0.0029 mg/L.
- Homes built before 1986: 42% — older plumbing may contain lead solder.
- CDC health risk index: 15.88 — above typical levels.
Kwigillingok's Water Providers
Federal records list 1 water system serving Kwigillingok, AK. One provider accounts for the large majority of residential water connections in the area, concentrating infrastructure and compliance accountability.
Overview
We track water quality and home safety data for 1 ZIP code in Kwigillingok, Alaska, covering 1 community water system serving approximately 461 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 Kwigillingok: 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
Kwigillingok water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0029 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 | 70 | 1 |
| Total Coliform | Microbiological | 62 | 1 |
| Consumer Confidence Report Rule | Reporting | 56 | 1 |
| Fecal Coliform | Microbiological | 42 | 1 |
| Revised Total Coliform Rule | Microbiological | 22 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 99622 | B | 134 | 0 | Kwigillingok Washeteria |
All ZIP Codes in Kwigillingok
- 99622 [B] — 134 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.
Kwigillingok 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 Kwigillingok's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Kwigillingok Infrastructure Age
With 42% 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
Lead solder was a standard plumbing material before 1986, when federal law prohibited its use in new residential construction. In Kwigillingok, the median build year of 1981 indicates that plumbing age is a material factor in local lead risk — with the pre-1986 share concentrated in specific neighborhoods and building types where older construction remains common.
Most homes in Kwigillingok 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.
Kwigillingok: 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.
In recent monitoring under the Lead and Copper Rule, citywide samples for Kwigillingok have approached or crossed the regulatory action level on multiple occasions. Combined with 42% of stock dating from the pre-rule era, the picture supports baseline single-tap reads as a standard household-level step.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Kwigillingok, AK