Clam Gulch, AK: High Radon Risk — 50/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Across Clam Gulch, EPA compliance records fall well below AK averages — documented health-based violations affect multiple service areas, and the city's sustained low grade reflects a persistent pattern across reporting cycles.
How Clam Gulch Compares
Data: EPA SDWIS Last verified: 2026-06-03
Clam Gulch Water: The Quick Version
- Homes built before 1986: 29% — older plumbing may contain lead solder.
- CDC health risk index: 12.87 — above typical levels.
Water Systems Serving Clam Gulch
Across most of Clam Gulch, AK, residential water comes from a single utility. That provider sets rates, manages infrastructure maintenance, and files compliance reports with the EPA on behalf of the households it serves. Federal tracking data shows 1 system on record, but one carries the bulk of the service load.
Overview
We track water quality and home safety data for 1 ZIP code in Clam Gulch, Alaska (population ~498), covering 1 community water system serving approximately 4,807 people region-wide.
No EPA violations recorded across any ZIP codes in Clam Gulch — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Clam Gulch: 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
Clam Gulch water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Clam Gulch
- 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 |
|---|---|---|---|
| 99568 | D | SOLDOTNA | 4,807 |
All ZIP Codes in Clam Gulch
- 99568 [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.
CDC Health Data for Clam Gulch
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
How Old Is Clam Gulch'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
Clam Gulch's housing stock skews relatively recent, with a median build year of 1996. Homes constructed after 1986 avoid the lead-soldered copper joints that were standard before the federal ban — reducing aggregate risk from plumbing as a contamination pathway.
Most homes in Clam Gulch 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.
Protecting Children from Lead in Clam Gulch
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.
Pre-rule stock in Clam Gulch accounts for 29% of the inventory — a modest fraction — and citywide samples land safely beneath the federal action mark.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Clam Gulch
- 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. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- 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 Clam Gulch, AK