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WaterSafeCheck

Klawock, AK Tap Water Quality

Water safety reports for all 1 ZIP code in Klawock, Alaska

Average Score

55/100

Health Violations

19

ZIP Codes

1

High Lead Risk

0

of 1 ZIP codes

C

About Tap Water in Klawock, AK

Water quality in Klawock, AK is currently rated with a moderate C grade (average score: 55/100 across 1 ZIP code). This rating indicates that while the water provided by Klawock is treated and regulated, there have been notable compliance issues or contaminant detections recently. Residents should stay informed about the specific challenges affecting their local supply.

The accumulation of 19 health-based violations over the past 5 years highlights systemic challenges within Klawock's water infrastructure. When violations occur, it means that drinking water tests revealed contaminant levels exceeding safe limits, triggering mandatory corrective actions by Alaska Department of Environmental Conservation. The city relies on surface water, which may require significant treatment upgrades to address these recurring issues.

Fortunately, the modeled risk for widespread lead exposure in Klawock's municipal water is relatively low compared to national averages. However, because lead typically enters drinking water through the corrosion of older, individual home plumbing rather than the main supply lines, residents in homes built before 1986 should still exercise caution by running the tap before use.

Health-Based Contaminant Violations in Klawock

EPA records indicate that the following contaminants have exceeded Safe Drinking Water Act Maximum Contaminant Levels (MCLs) in Klawock water systems over the past 5 years.

Total Trihalomethanes (TTHM)

Note: The presence of a past violation does not necessarily mean current water is unsafe. Utilities are required to take corrective action. Review your Consumer Confidence Report for the latest status.

Water Quality by ZIP Code — Klawock, AK

Click any ZIP code for the full water quality report

C
99925

Klawock, AK

Score: 55/10019 violations

Frequently Asked Questions — Klawock Water Quality

Is tap water safe to drink in Klawock, AK?+
Tap water in Klawock has a grade of C, indicating compliance concerns in recent years. Families with young children or pregnant women should consider using a certified NSF/ANSI 53 water filter for drinking and cooking.
What is the water quality score for Klawock?+
The average water quality score across 1 ZIP code in Klawock, AK is 55/100. Scores are derived from EPA violation history, lead levels, enforcement actions, and infrastructure risk indicators. Individual ZIP codes may vary — search your specific ZIP above for a personalized report.
Does Klawock have lead in its tap water?+
Lead risk ratings in Klawock are relatively low based on EPA monitoring data. However, lead in home plumbing is a separate concern — if your home was built before 1986, individual tap testing is recommended.
How do I get the water quality report for Klawock?+
Each ZIP code in Klawock has a full water quality report on this site — click any ZIP code below. You can also get the annual Consumer Confidence Report (CCR) from your local water utility. The CCR is required to be published every year by July 1 and contains actual contaminant measurements and violation history.
Where does Klawock's tap water come from?+
Tap water in Klawock, AK primarily comes from surface water. Surface water systems treat water from rivers, lakes, or reservoirs using filtration, sedimentation, and disinfection before it reaches your tap.

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