F0/100

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

Serving 3,000 residents · Arizona

What's In Wellton's Tap Water?

Water Utility

Contaminants Tested

Exceed EPA Limits

Above EPA Goals

EPA Violation History

108

Violations (last 5yr)

Unresolved

Health-Related

TIER 1 — URGENTUnresolved

Violation related to Nitrate

When: September 1, 2025 – September 30, 2025Rule: Surface Water Treatment RuleVerify on EPA.gov

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: July 2, 2025 – September 18, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: July 1, 2025 – August 12, 2025Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Unresolved

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, 2025 – September 30, 2025Rule: Stage 2 DBPRVerify 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: July 1, 2025 – September 30, 2025Verify 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: July 1, 2025 – September 30, 2025Verify on EPA.gov

TIER 3Unresolved

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, 2025 – September 30, 2025Rule: Stage 2 DBPRVerify on EPA.gov

TIER 2Unresolved

Treatment Technique Violation

When: July 1, 2025 – September 30, 2025Rule: Stage 1 DBPRVerify on EPA.gov

TIER 3Resolved

Failed to complete routine monitoring

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

When: June 1, 2025 – June 30, 2025Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Unresolved

Failed to complete routine monitoring

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

When: May 1, 2025 – May 31, 2025Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Missed required monitoring deadline

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

When: May 1, 2025 – May 31, 2025Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 1 — URGENTUnresolved

Violation related to Nitrate

When: May 1, 2025 – May 31, 2025Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 1 — URGENTUnresolved

Violation related to Nitrate

When: May 1, 2025 – May 31, 2025Rule: Surface Water Treatment RuleEnforcement: 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: April 1, 2025 – June 30, 2025Enforcement: Resolving — corrective action underway

TIER 3Unresolved

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, 2025 – June 30, 2025Rule: Stage 2 DBPREnforcement: 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: April 1, 2025 – June 30, 2025Enforcement: Resolving — corrective action underway

TIER 2Unresolved

Treatment Technique Violation

When: April 1, 2025 – June 30, 2025Rule: Stage 1 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

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, 2025 – June 30, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Missed required monitoring deadline

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

When: February 1, 2025 – February 28, 2025Rule: Surface Water Treatment RuleEnforcement: 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, 2025 – March 31, 2025Enforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 2Unresolved

Treatment Technique Violation

When: January 1, 2025 – March 31, 2025Rule: Stage 1 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Resolved

Reporting violation

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

When: October 17, 2024 – March 11, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 2Resolved

Treatment technique violation

When: October 17, 2024 – March 11, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify 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: October 1, 2024 – 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: October 1, 2024 – December 31, 2024Enforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: September 22, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 1 — URGENTUnresolved

Violation related to Nitrate

When: September 1, 2024 – September 30, 2024Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Missed required monitoring deadline

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

When: September 1, 2024 – September 30, 2024Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: August 30, 2024 – October 10, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Unresolved

Missed required monitoring deadline

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

When: August 1, 2024 – August 31, 2024Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 1 — URGENTUnresolved

Violation related to Nitrate

When: August 1, 2024 – August 31, 2024Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 1 — URGENTUnresolved

Violation related to Nitrate

When: July 1, 2024 – July 31, 2024Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2024 – September 30, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify 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: July 1, 2024 – September 30, 2024Enforcement: Resolving — corrective action underway

TIER 3Unresolved

Missed required monitoring deadline

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

When: July 1, 2024 – July 31, 2024Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Resolved

Failed to conduct Level 2 Assessment

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

When: June 30, 2024 – July 31, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issued

TIER 3Unresolved

Missed required monitoring deadline

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

When: June 1, 2024 – June 30, 2024Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 1 — URGENTUnresolved

Violation related to Nitrate

When: June 1, 2024 – June 30, 2024Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: May 31, 2024 – July 10, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: May 31, 2024 – July 10, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: April 1, 2024 – June 30, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: January 1, 2024 – March 31, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: November 8, 2023 – November 15, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: November 1, 2023 – December 18, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Missed required monitoring deadline

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

When: November 1, 2023 – November 30, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify 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: October 1, 2023 – December 31, 2023Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 3Resolved

Missed required monitoring deadline

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

When: July 1, 2023 – July 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to complete routine monitoring

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

When: July 1, 2023 – July 31, 2023Rule: Surface Water Treatment 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: July 1, 2023 – September 30, 2023Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 1 — URGENTResolved

Violation related to Nitrate

When: July 1, 2023 – July 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2023 – September 30, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov

TIER 3Resolved

Failed to complete routine monitoring

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

When: June 1, 2023 – June 30, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Missed required monitoring deadline

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

When: June 1, 2023 – June 30, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Missed required monitoring deadline

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

When: May 1, 2023 – May 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to complete routine monitoring

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

When: May 1, 2023 – May 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Missed required monitoring deadline

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

When: April 1, 2023 – April 30, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to complete routine monitoring

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

When: April 1, 2023 – April 30, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: April 1, 2023 – June 30, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov

TIER 3Resolved

Missed required monitoring deadline

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

When: March 1, 2023 – March 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to complete routine monitoring

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

When: March 1, 2023 – March 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: January 1, 2023 – April 24, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to complete routine monitoring

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

When: January 1, 2023 – January 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: January 1, 2023 – March 31, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov

TIER 3Resolved

Missed required monitoring deadline

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

When: January 1, 2023 – January 31, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

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 – April 24, 2023Rule: 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, 2023 – March 31, 2023Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: December 4, 2022 – December 7, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: December 4, 2022 – December 7, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Surface water treatment technique failure

When: October 2, 2022 – February 22, 2023Enforcement: 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: October 1, 2022 – December 31, 2022Enforcement: Resolving — corrective action underway

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2022 – December 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov

TIER 3Resolved

Failed to issue ongoing public notification

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

When: October 1, 2022 – December 15, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: September 1, 2022 – November 2, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Missed required monitoring deadline

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

When: September 1, 2022 – September 30, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to complete routine monitoring

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

When: September 1, 2022 – September 30, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: August 28, 2022 – July 1, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2022 – September 30, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify 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, 2022 – September 30, 2022Rule: 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, 2022 – September 30, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to conduct Level 2 Assessment

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

When: June 30, 2022 – October 17, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: June 3, 2022 – February 9, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: June 1, 2022 – August 24, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Missed required monitoring deadline

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

When: June 1, 2022 – June 30, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to complete routine monitoring

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

When: June 1, 2022 – June 30, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: May 29, 2022 – July 1, 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: April 1, 2022 – June 30, 2022Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: April 1, 2022 – June 30, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify 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: April 1, 2022 – June 30, 2022Rule: Stage 1 DBPREnforcement: 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: April 1, 2022 – June 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: April 1, 2022 – June 30, 2022Rule: Stage 2 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: April 1, 2022 – June 30, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: March 19, 2022 – February 16, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: March 2, 2022 – July 10, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: March 1, 2022 – April 13, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: February 17, 2022 – July 10, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

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

When: January 1, 2022 – February 25, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: January 1, 2022 – March 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify 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: January 1, 2022 – March 31, 2022Rule: 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: January 1, 2022 – March 31, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2021 – December 31, 2021Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov

TIER 3Resolved

Failed to conduct Level 2 Assessment

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

When: August 18, 2021 – March 8, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued

TIER 3Resolved

Missed required monitoring deadline

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

When: August 1, 2021 – August 31, 2021Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to complete routine monitoring

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

When: August 1, 2021 – August 31, 2021Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2021 – September 30, 2021Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify 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: July 1, 2021 – July 31, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to conduct Level 2 Assessment

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

When: May 15, 2021 – March 8, 2022Rule: Stage 2 DBPREnforcement: 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

WELLTON TOWN OF

Population Served

3,000

Water Source

Surface Water

System ID

AZ0414022

Frequently Asked Questions About Wellton Water

Is Wellton tap water safe to drink?

Wellton, Arizona tap water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA maximum contaminant levels and 434 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.

What contaminants are in Wellton's water?

1 contaminants were tested in Wellton's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.

Does Wellton have any water quality violations?

Yes, Wellton has 434 EPA violation(s) on record, with the most recent in 2025. Violation types include TT, Other, RPT. 66 of these are health-based violations, which are the most serious category.

Do I need a water filter in Wellton?

Wellton 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 Wellton's tap water come from?

Wellton's drinking water is sourced from surface water and supplied by WELLTON TOWN OF. The system serves approximately 3,000 people. Surface water sources include rivers, lakes, and reservoirs.

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

Wellton'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 Wellton's water quality?

If you have concerns about Wellton'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 (WELLTON TOWN OF) 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.

Nearby Cities in Arizona

PhoenixD TucsonF MesaF El MirageF ScottsdaleC