Kasilof, AK: High Radon Risk — 50/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Compared to AK averages, Kasilof scores below the baseline — health violations appear more frequently than the norm and the city's grade reflects that ongoing shortfall.
How Kasilof Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Kasilof Residents
- Homes built before 1986: 33% — older plumbing may contain lead solder.
- CDC health risk index: 12.87 — above typical levels.
Kasilof's Water Providers
A single dominant system supplies most of Kasilof, AK. That utility controls infrastructure decisions, rate structures, and EPA compliance reporting for most residential addresses served across those 1 tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in Kasilof, Alaska (population ~2,307), covering 1 community water system serving approximately 4,807 people region-wide.
No EPA violations recorded across any ZIP codes in Kasilof — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Kasilof: D (50/100)
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
Kasilof water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Kasilof
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 99610 | D | SOLDOTNA | 4,807 |
All ZIP Codes in Kasilof
- 99610 [D]
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.
Kasilof 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
Kasilof Infrastructure Age
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
Pre-1986 construction carries elevated plumbing-era lead risk because lead solder was widely used before that federal ban. In Kasilof, the median build year of 1995 indicates a housing stock where that older fraction represents a significant share of the residential inventory.
Most homes in Kasilof 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.
Kasilof: 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.
When older housing represents 33% of the local inventory or aggregate readings approach the federal action level, an in-home check becomes the standard way to translate citywide averages into the specific reality of an individual Kasilof address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Kasilof
- 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. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 33% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Kasilof, AK