TapScore

DUNCAN TOWN OF Water Quality Report

Population

605

people served

Water Source

🏔️ Ground

wells & aquifers

National Rank

—

of 49,184 US systems

5-Year Record

⚠️ 311

violations recorded

F

Unsafe

Safety Grade

311 violations in the past 5 years, including 7 health-based

System Details

PWSID
AZ0406001
Population Served
605
Water Source
Ground Water
Owner
Local Government
State
Arizona
EPA Region
9

Contaminants of Concern

ContaminantStatusViolations
Contaminant 5000⚠ Monitoring/Reporting30
Contaminant 7000⚠ Monitoring/Reporting43
Contaminant 3100⚠ Monitoring/Reporting3
Contaminant 0999⚠ Monitoring/Reporting67
Contaminant 8000⚠ Monitoring/Reporting15
Total Trihalomethanes (TTHMs)⚠ Monitoring/Reporting6
Haloacetic Acids (HAA5)⚠ Monitoring/Reporting6
Contaminant 7500⚠ Monitoring/Reporting16
Contaminant 1925⚠ Monitoring/Reporting8
Contaminant 2378⚠ Monitoring/Reporting11
Vinyl Chloride⚠ Monitoring/Reporting11
Contaminant 2955⚠ Monitoring/Reporting11
Trichloroethylene (TCE)⚠ Monitoring/Reporting11
Contaminant 2968⚠ Monitoring/Reporting11
Tetrachloroethylene (PCE)⚠ Monitoring/Reporting11
Contaminant 2976⚠ Monitoring/Reporting11
Contaminant 2977⚠ Monitoring/Reporting11
Contaminant 2979⚠ Monitoring/Reporting11
Contaminant 2980⚠ Monitoring/Reporting11
Contaminant 2981⚠ Monitoring/Reporting11
Contaminant 2982⚠ Monitoring/Reporting11
Contaminant 2983⚠ Monitoring/Reporting11
Chloramine⚠ Monitoring/Reporting11
Contaminant 2985⚠ Monitoring/Reporting11
Contaminant 2987⚠ Monitoring/Reporting11
Contaminant 2989⚠ Monitoring/Reporting11
Contaminant 2990⚠ Monitoring/Reporting11
Contaminant 2991⚠ Monitoring/Reporting11
Contaminant 2992⚠ Monitoring/Reporting11
Contaminant 2996⚠ Monitoring/Reporting11
Contaminant 2039✕ Health-Based18
Contaminant 1996⚠ Monitoring/Reporting7
Contaminant 0700✕ Health-Based2
Contaminant 1064⚠ Monitoring/Reporting2
Contaminant 1927⚠ Monitoring/Reporting2
Contaminant 1919⚠ Monitoring/Reporting2

Violation History

2025
59
2024
215
2023
9
2021
28
2020
38
2019
22
2018
13
2017
21
2016
24
2015
9

Total violations on record: 458

Service Area

Cities Served

DUNCAN

ZIP Codes Served

85534

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), Trichloroethylene (TCE), Tetrachloroethylene (PCE), Vinyl Chloride

$20–$100

How does this compare?

This systemNational average
Grade F
Avg: B-C
458violations total

1636% of national average

National avg: ~28 per system

🏘️ Small community water system.