Klawock, AK: 19 Health Violations — 55/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Klawock's water quality grade in AK reflects a middle-ground assessment — service areas range from fully compliant to violation-flagged in current EPA records.
How Klawock Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Klawock Residents
- Your city's water systems recorded 26 violations in the past 5 years.
- Average lead level: 0.0036 mg/L.
- Homes built before 1986: 41% — older plumbing may contain lead solder.
- Estimated remediation: $600 per household.
- CDC health risk index: 15.41 — above typical levels.
Klawock's Water Providers
Klawock, 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 Klawock, Alaska, covering 1 community water system serving approximately 854 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 19 health-based violations documented.
Home Safety Score
Average Home Safety Score for Klawock: C (55/100)
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
Klawock water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0036 mg/L (EPA action level: 0.015 mg/L)
- 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.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 38 | 1 |
| E. coli | Microbiological | 6 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 4 | 1 |
| Fecal Coliform | Microbiological | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 99925 | C | 26 | 19 | Klawock |
All ZIP Codes in Klawock
- 99925 [C] — 26 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.
Klawock 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 Klawock's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Klawock Infrastructure Age
With 41% 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
Prohibited from residential plumbing since 1986, lead solder divides Klawock's housing stock along a timeline that the median build year of 1999 straddles. A meaningful share of homes predates the ban — a configuration that places moderate aggregate pressure on plumbing-related lead risk, distributed unevenly across neighborhoods.
Most homes in Klawock 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 Klawock
In Klawock, documented water and safety issues can be addressed without making a meaningful dent in home equity — the financial proportionality here is favorable, and the commitment fits within standard property planning frameworks.
Remediation costs in Klawock are relatively low compared to home values. The $300–$1,500 estimated range is a small fraction of median property value. Home values are 37% above the Alaska average.
Klawock: 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.
Practically, the structural drivers in Klawock — 41% 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 Klawock
- 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 Total Trihalomethanes (TTHM) can reduce the most common contaminant found in Klawock's water.
- Check your home's plumbing. With 41% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Klawock, AK