TapSafetyReport
F0/100

Polacca Tap Water Quality: Is It Safe to Drink? (2026 Report)

Serving 4,108 residents · Arizona

What's In Polacca's Tap Water?

51
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
< 0.001 mg/L0.015 mg/LAbove Goal

EPA Violation History

29

Violations (last 5yr)

4

Unresolved

12

Health-Related

TIER 2Unresolved

Treatment technique violation

When: October 17, 2024Rule: Ground Water RuleVerify on EPA.gov
TIER 3Unresolved

Failed to conduct Level 1 Assessment

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: December 1, 2023Rule: Consumer Confidence RuleVerify on EPA.gov
TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: December 1, 2023 – December 31, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 2Unresolved

Maximum contaminant level violation

When: October 1, 2023Rule: Total Coliform RuleVerify on EPA.gov
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2023 – December 31, 2023Enforcement: Resolving — corrective action underway
TIER 3Unresolved

Failed to conduct Level 1 Assessment

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2023Rule: Consumer Confidence RuleVerify on EPA.gov
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2023 – September 30, 2023Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2023 – September 30, 2023Enforcement: Resolving — corrective action underway
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: April 1, 2023 – June 30, 2023Enforcement: Formal — state order issued
TIER 3Resolved

Monitoring violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: February 1, 2023 – March 23, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: January 1, 2023 – March 31, 2023Enforcement: Formal — state order issued
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: October 1, 2022 – December 31, 2022Enforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2022 – November 8, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2022 – December 31, 2022Enforcement: Formal — state order issued
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2022 – September 30, 2022Enforcement: Formal — state order issued
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: July 1, 2022 – September 1, 2022Rule: Ground Water RuleEnforcement: 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: July 1, 2022 – September 30, 2022Enforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2022 – September 30, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: April 1, 2022 – June 30, 2022Enforcement: Formal — state order issued
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2022 – June 30, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: January 1, 2022 – March 31, 2022Enforcement: Formal — state order issued
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 27, 2022Enforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: January 1, 2022 – April 8, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2022 – March 31, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2021 – December 31, 2021Enforcement: Formal — state order issued
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2021 – December 31, 2021Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2021 – September 30, 2021Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: July 1, 2021 – April 5, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2021 – September 30, 2021Enforcement: Formal — state order issued

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

Polacca
Population Served

4,108

Water Source

Purchased Groundwater

System ID

090400106

Frequently Asked Questions About Polacca Water

Is Polacca tap water safe to drink?

Polacca, Arizona tap water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA maximum contaminant levels and 374 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.

What contaminants are in Polacca's water?

Of the 51 contaminants tested in Polacca's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.

Does Polacca have any water quality violations?

Yes, Polacca has 374 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, MR, MON. 74 of these are health-based violations, which are the most serious category.

Do I need a water filter in Polacca?

Polacca 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. 1 contaminant(s) exceed these stricter goals.

Where does Polacca's tap water come from?

Polacca's drinking water is sourced from purchased groundwater and supplied by Polacca. The system serves approximately 4,108 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.

How often is Polacca'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. Polacca'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 Polacca's water compare to other cities in Arizona?

Polacca'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 Polacca's water quality?

If you have concerns about Polacca'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 (Polacca) 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.

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