TapScore

EMMONAK WATER SYSTEM Water Quality Report

Population

820

people served

Water Source

🌊 Surface

rivers, lakes, reservoirs

National Rank

—

of 49,184 US systems

5-Year Record

⚠️ 346

violations recorded

F

Unsafe

Safety Grade

346 violations in the past 5 years, including 42 health-based

System Details

PWSID
AK2270299
Population Served
820
Water Source
Surface Water
Owner
Native American
State
Alaska
EPA Region
10

Contaminants of Concern

ContaminantStatusViolations
Contaminant 0800⚠ Monitoring/Reporting1
Contaminant 5000⚠ Monitoring/Reporting6
Contaminant 7000⚠ Monitoring/Reporting13
Contaminant 0600⚠ Monitoring/Reporting1
Contaminant 2005⚠ Monitoring/Reporting7
Contaminant 2010⚠ Monitoring/Reporting7
Contaminant 2015⚠ Monitoring/Reporting7
Contaminant 2020⚠ Monitoring/Reporting7
Contaminant 2031⚠ Monitoring/Reporting7
Contaminant 2032⚠ Monitoring/Reporting7
Contaminant 2033⚠ Monitoring/Reporting7
Contaminant 2034⚠ Monitoring/Reporting7
Contaminant 2035⚠ Monitoring/Reporting7
Contaminant 2036⚠ Monitoring/Reporting7
Contaminant 2037⚠ Monitoring/Reporting7
Contaminant 2039⚠ Monitoring/Reporting7
Contaminant 2040⚠ Monitoring/Reporting7
Contaminant 2041⚠ Monitoring/Reporting7
Contaminant 2042⚠ Monitoring/Reporting7
Contaminant 2046⚠ Monitoring/Reporting7
Atrazine⚠ Monitoring/Reporting7
Benzene⚠ Monitoring/Reporting7
Contaminant 2063⚠ Monitoring/Reporting7
Contaminant 2065⚠ Monitoring/Reporting7
Contaminant 2067⚠ Monitoring/Reporting7
Contaminant 2105⚠ Monitoring/Reporting7
Contaminant 2110⚠ Monitoring/Reporting7
Contaminant 2274⚠ Monitoring/Reporting7
Contaminant 2306⚠ Monitoring/Reporting7
Contaminant 2326⚠ Monitoring/Reporting7
Contaminant 2383⚠ Monitoring/Reporting7
Contaminant 2931⚠ Monitoring/Reporting7
Contaminant 2946⚠ Monitoring/Reporting7
Contaminant 2959⚠ Monitoring/Reporting7
Total Trihalomethanes (TTHMs)✕ Health-Based48
Contaminant 0300⚠ Monitoring/Reporting34
Contaminant 0200⚠ Monitoring/Reporting75
Contaminant 8000✕ Health-Based9
Contaminant 0999⚠ Monitoring/Reporting4
Haloacetic Acids (HAA5)⚠ Monitoring/Reporting16
Contaminant 2920✕ Health-Based115
Total Coliform⚠ Monitoring/Reporting2
Contaminant 7500⚠ Monitoring/Reporting9
Contaminant 2378⚠ Monitoring/Reporting2
Vinyl Chloride⚠ Monitoring/Reporting2
Contaminant 2955⚠ Monitoring/Reporting2
Trichloroethylene (TCE)⚠ Monitoring/Reporting2
Contaminant 2968⚠ Monitoring/Reporting2
Tetrachloroethylene (PCE)⚠ Monitoring/Reporting2
Contaminant 2976⚠ Monitoring/Reporting2
Contaminant 2977⚠ Monitoring/Reporting2
Contaminant 2979⚠ Monitoring/Reporting2
Contaminant 2980⚠ Monitoring/Reporting2
Contaminant 2981⚠ Monitoring/Reporting2
Contaminant 2982⚠ Monitoring/Reporting2
Contaminant 2983⚠ Monitoring/Reporting2
Chloramine⚠ Monitoring/Reporting2
Contaminant 2985⚠ Monitoring/Reporting2
Contaminant 2987⚠ Monitoring/Reporting2
Contaminant 2989⚠ Monitoring/Reporting2
Contaminant 2990⚠ Monitoring/Reporting2
Contaminant 2991⚠ Monitoring/Reporting2
Contaminant 2992⚠ Monitoring/Reporting2
Contaminant 2996⚠ Monitoring/Reporting2
Contaminant 5200✕ Health-Based2

Violation History

2025
115
2024
92
2023
62
2022
28
2021
49
2020
25
2019
18
2018
5
2017
30
2016
151

Total violations on record: 587

Service Area

Cities Served

EMMONAK

ZIP Codes Served

99581

Recommended Water Filters

Based on contaminants detected in this water system:

Activated Carbon Filter

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

Removes: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5), Atrazine, Benzene, 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
587violations total

2096% of national average

National avg: ~28 per system

🏘️ Small community water system.