Klawock, AK
Contamination score
Higher = more contaminated vs. other cities.
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Reported illness & cancer claims
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Self-reported issues
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Pollution sources & reported claims near your water
Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.
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Public water systems
Klawock
- PWSID:
- AK2120169
- Source:
- Surface water
- Serves:
- 904 people
EPA & DEP violations
Klawock
PWSID AK212016920 violationsTotal Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Jan 1, 2026 · 7 months ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Oct 1, 2025 · 10 months ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Jul 1, 2025 · 1 year ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Apr 1, 2025 · 1 year ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Jan 1, 2025 · 1 year ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Oct 1, 2024 · 1 year ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Jul 1, 2024 · 2 years ago · Source ↗
Surface Water Treatment Rule — MR violation
medium severityResolvedSurface Water Treatment Rule MR violation (Resolved).
EPA SDWIS · MR · Began Apr 1, 2024 · 2 years ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Apr 1, 2024 · 2 years ago · Source ↗
Interim Enhanced Surface Water Treatment Rule — MR violation
medium severityResolvedInterim Enhanced Surface Water Treatment Rule MR violation (Resolved).
EPA SDWIS · MR · Began Apr 1, 2024 · 2 years ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Jan 1, 2024 · 2 years ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Oct 1, 2023 · 2 years ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Jul 1, 2023 · 3 years ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Apr 1, 2023 · 3 years ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Jan 1, 2023 · 3 years ago · Source ↗
Surface Water Treatment Rule — MR violation
medium severityResolvedSurface Water Treatment Rule MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Oct 1, 2022 · 3 years ago · Source ↗
Interim Enhanced Surface Water Treatment Rule — MR violation
medium severityResolvedInterim Enhanced Surface Water Treatment Rule MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Jul 1, 2022 · 4 years ago · Source ↗
Total Haloacetic Acids (HAA5) — MCL violation
high severityHealth-basedArchivedTotal Haloacetic Acids (HAA5) MCL violation (Archived).
EPA SDWIS · MCL · Began Apr 1, 2022 · 4 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.