TapScore

KLAWOCK Water Quality Report

Population

904

people served

Water Source

🌊 Surface

rivers, lakes, reservoirs

National Rank

—

of 49,184 US systems

5-Year Record

⚠️ 55

violations recorded

F

Unsafe

Safety Grade

55 violations in the past 5 years, including 64 health-based

System Details

PWSID
AK2120169
Population Served
904
Water Source
Surface Water
Owner
Native American
State
Alaska
EPA Region
10

Contaminants of Concern

ContaminantStatusViolations
Contaminant 5000⚠ Monitoring/Reporting3
Contaminant 0200✕ Health-Based33
Contaminant 0300⚠ Monitoring/Reporting60
Total Trihalomethanes (TTHMs)✕ Health-Based15
Haloacetic Acids (HAA5)✕ Health-Based68
Contaminant 2378⚠ Monitoring/Reporting4
Vinyl Chloride⚠ Monitoring/Reporting4
Contaminant 2955⚠ Monitoring/Reporting4
Trichloroethylene (TCE)⚠ Monitoring/Reporting4
Contaminant 2968⚠ Monitoring/Reporting4
Tetrachloroethylene (PCE)⚠ Monitoring/Reporting4
Contaminant 2977⚠ Monitoring/Reporting4
Contaminant 2979⚠ Monitoring/Reporting4
Contaminant 2980⚠ Monitoring/Reporting4
Contaminant 2981⚠ Monitoring/Reporting4
Contaminant 2982⚠ Monitoring/Reporting4
Contaminant 2983⚠ Monitoring/Reporting4
Chloramine⚠ Monitoring/Reporting4
Contaminant 2985⚠ Monitoring/Reporting4
Contaminant 2987⚠ Monitoring/Reporting4
Contaminant 2989⚠ Monitoring/Reporting4
Contaminant 2990⚠ Monitoring/Reporting4
Contaminant 2991⚠ Monitoring/Reporting4
Contaminant 2992⚠ Monitoring/Reporting4
Contaminant 2996⚠ Monitoring/Reporting4
Contaminant 2976⚠ Monitoring/Reporting3
Contaminant 0999⚠ Monitoring/Reporting2
Contaminant 7000⚠ Monitoring/Reporting8
Contaminant 3100⚠ Monitoring/Reporting3
Nitrate⚠ Monitoring/Reporting2
Contaminant 8000⚠ Monitoring/Reporting2
Total Coliform⚠ Monitoring/Reporting3

Violation History

2025
4
2024
12
2023
14
2022
19
2021
6
2020
5
2019
7
2018
12
2017
35
2016
17

Total violations on record: 282

Service Area

Cities Served

KLAWOCK

ZIP Codes Served

99925

Recommended Water Filters

Based on contaminants detected in this water system:

Reverse Osmosis System

Removes up to 99% of contaminants including PFAS, lead, arsenic, and nitrates

Removes: Nitrate

$150–$400

Activated Carbon Filter

Effective for chlorine, THMs, pesticides, and taste/odor improvement

Removes: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5), Trichloroethylene (TCE), Tetrachloroethylene (PCE), Vinyl Chloride

$20–$100

UV Water Purifier

Kills bacteria and viruses without chemicals

Removes: Total Coliform

$50–$150

How does this compare?

This systemNational average
Grade F
Avg: B-C
282violations total

1007% of national average

National avg: ~28 per system

🏘️ Small community water system.