TapScore

CHENEGA Water Quality Report

Population

50

people served

Water Source

🌊 Surface

rivers, lakes, reservoirs

National Rank

—

of 49,184 US systems

5-Year Record

⚠️ 219

violations recorded

F

Unsafe

Safety Grade

219 violations in the past 5 years, including 51 health-based

System Details

PWSID
AK2291952
Population Served
50
Water Source
Surface Water
Owner
Native American
State
Alaska
EPA Region
10

Contaminants of Concern

ContaminantStatusViolations
Contaminant 3100✕ Health-Based43
Nitrate⚠ Monitoring/Reporting11
Contaminant 1085⚠ Monitoring/Reporting4
Contaminant 1036⚠ Monitoring/Reporting4
Cyanide⚠ Monitoring/Reporting4
Contaminant 1075⚠ Monitoring/Reporting4
Beryllium⚠ Monitoring/Reporting4
Contaminant 5000⚠ Monitoring/Reporting9
Trichloroethylene (TCE)⚠ Monitoring/Reporting6
Contaminant 2378⚠ Monitoring/Reporting6
Contaminant 2985⚠ Monitoring/Reporting6
Contaminant 2955⚠ Monitoring/Reporting8
Tetrachloroethylene (PCE)⚠ Monitoring/Reporting8
Contaminant 2981⚠ Monitoring/Reporting8
Contaminant 2968⚠ Monitoring/Reporting8
Contaminant 2982⚠ Monitoring/Reporting8
Contaminant 2989⚠ Monitoring/Reporting8
Contaminant 2991⚠ Monitoring/Reporting8
Contaminant 2987⚠ Monitoring/Reporting8
Contaminant 2996⚠ Monitoring/Reporting8
Contaminant 2992⚠ Monitoring/Reporting8
Contaminant 2983⚠ Monitoring/Reporting8
Vinyl Chloride⚠ Monitoring/Reporting8
Contaminant 2979⚠ Monitoring/Reporting8
Contaminant 2977⚠ Monitoring/Reporting8
Chloramine⚠ Monitoring/Reporting8
Contaminant 2990⚠ Monitoring/Reporting8
Contaminant 2980⚠ Monitoring/Reporting8
Contaminant 2037⚠ Monitoring/Reporting8
Contaminant 2040⚠ Monitoring/Reporting8
Contaminant 2032⚠ Monitoring/Reporting8
Contaminant 2041⚠ Monitoring/Reporting8
Contaminant 2005⚠ Monitoring/Reporting8
Contaminant 2383⚠ Monitoring/Reporting8
Contaminant 2326⚠ Monitoring/Reporting8
Contaminant 2067⚠ Monitoring/Reporting8
Contaminant 2065⚠ Monitoring/Reporting8
Contaminant 2946⚠ Monitoring/Reporting8
Contaminant 2959⚠ Monitoring/Reporting8
Atrazine⚠ Monitoring/Reporting8
Contaminant 2044⚠ Monitoring/Reporting4
Contaminant 2043⚠ Monitoring/Reporting4
Contaminant 2047⚠ Monitoring/Reporting4
Contaminant 2110⚠ Monitoring/Reporting8
Contaminant 2105⚠ Monitoring/Reporting8
Contaminant 2020⚠ Monitoring/Reporting8
Contaminant 2010⚠ Monitoring/Reporting8
Contaminant 2015⚠ Monitoring/Reporting8
Contaminant 7000⚠ Monitoring/Reporting10
Arsenic⚠ Monitoring/Reporting3
Contaminant 2976⚠ Monitoring/Reporting3
Haloacetic Acids (HAA5)✕ Health-Based13
Total Trihalomethanes (TTHMs)⚠ Monitoring/Reporting6
Contaminant 0200✕ Health-Based171
Contaminant 0999⚠ Monitoring/Reporting76
Contaminant 0300⚠ Monitoring/Reporting51
Contaminant 2031⚠ Monitoring/Reporting4
Contaminant 2033⚠ Monitoring/Reporting4
Contaminant 2034⚠ Monitoring/Reporting4
Contaminant 2035⚠ Monitoring/Reporting4
Contaminant 2036⚠ Monitoring/Reporting4
Contaminant 2039⚠ Monitoring/Reporting4
Contaminant 2042⚠ Monitoring/Reporting4
Contaminant 2046⚠ Monitoring/Reporting4
Benzene⚠ Monitoring/Reporting4
Contaminant 2063⚠ Monitoring/Reporting4
Contaminant 2274⚠ Monitoring/Reporting4
Contaminant 2306⚠ Monitoring/Reporting4
Contaminant 2931⚠ Monitoring/Reporting4
Contaminant 8000✕ Health-Based84
Radium-226⚠ Monitoring/Reporting1
Uranium⚠ Monitoring/Reporting1
Gross Alpha⚠ Monitoring/Reporting1
Total Coliform⚠ Monitoring/Reporting38
Barium⚠ Monitoring/Reporting1
Cadmium⚠ Monitoring/Reporting1
Chromium⚠ Monitoring/Reporting1
Fluoride⚠ Monitoring/Reporting1
Selenium⚠ Monitoring/Reporting1
Thallium⚠ Monitoring/Reporting1

Violation History

2025
21
2024
70
2023
30
2022
59
2021
39
2020
35
2019
42
2018
66
2017
63
2016
152

Total violations on record: 902

Service Area

Cities Served

ANCHORAGE

ZIP Codes Served

99503

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: Arsenic, Nitrate, Uranium, Radium-226, Fluoride, Cadmium, Chromium, Selenium, Barium

$150–$400

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

Water Distiller

Removes heavy metals, minerals, and most contaminants through evaporation

Removes: Arsenic, Cadmium, Fluoride

$80–$200

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
902violations total

3221% of national average

National avg: ~28 per system

🏘️ Small community water system.