F0/100
Show Low Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 17,139 residents · Arizona
What's In Show Low's Tap Water?
51
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
6
Violations (last 5yr)
2
Unresolved
1
Health-Related
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2023 – August 17, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2022 – December 31, 2024Enforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2022 – December 31, 2024Enforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2022 – December 31, 2024Enforcement: Resolving — corrective action underway
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2022 – December 31, 2024Enforcement: Resolving — corrective action underway
TIER 2Resolved
Violation related to Consumer Confidence Report
When: November 12, 2021 – January 14, 2022Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
CITY OF SHOW LOW
Population Served
17,139
Water Source
Groundwater
System ID
AZ0409026
Frequently Asked Questions About Show Low Water
Is Show Low tap water safe to drink?
Show Low, Arizona tap water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA maximum contaminant levels and 536 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Show Low's water?
51 contaminants were tested in Show Low's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Show Low have any water quality violations?
Yes, Show Low has 536 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, TT, Other. 2 of these are health-based violations, which are the most serious category.
Do I need a water filter in Show Low?
Show Low water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. All contaminants are within health goals.
Where does Show Low's tap water come from?
Show Low's drinking water is sourced from groundwater and supplied by CITY OF SHOW LOW. The system serves approximately 17,139 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Show Low's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Show Low's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Show Low's water compare to other cities in Arizona?
Show Low's water quality score of 0/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our Arizona state page to see how all cities in the state compare.
What should I do if I'm concerned about Show Low's water quality?
If you have concerns about Show Low's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (CITY OF SHOW LOW) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.