F0/100

Quechan Utility — Water Quality Report 2026

Serving 5,660 people · Arizona

Water Source

Groundwater

County

—

System ID

090400089

Violations

487

Contaminant Test Results

1 contaminant above EPA health goals

Contaminant	Detected	Limit (MCL)	Goal (MCLG)	Status
Lead (90th percentile)	0.006 mg/L	0.015 mg/L	0 mg/L	Above Goal

EPA Violation History

Violations (last 5yr)

Unresolved

Health-Related

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: September 1, 2025Rule: Consumer Confidence RuleVerify 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 3Resolved

Monitoring violation

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

When: June 1, 2025 – July 22, 2025Rule: Total Coliform RuleEnforcement: 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: June 1, 2025Rule: Consumer Confidence RuleVerify on EPA.gov

TIER 2Unresolved

Violation related to Consumer Confidence Report

When: May 31, 2025Rule: 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: May 1, 2025 – July 22, 2025Rule: Total Coliform RuleEnforcement: 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: May 1, 2025Rule: Consumer Confidence 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: April 1, 2025Rule: 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: January 1, 2025 – March 4, 2025Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Unresolved

Reporting Violation

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

When: November 16, 2024Rule: Ground Water RuleVerify 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, 2024 – 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, 2022Enforcement: Resolving — corrective action underway

TIER 2Resolved

Violation related to Consumer Confidence Report

When: December 11, 2021 – April 25, 2023Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway

TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: December 11, 2021Rule: Ground Water RuleVerify on EPA.gov

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

Frequently Asked Questions About Quechan Utility

Is Quechan Utility water safe to drink?

Quechan Utility water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 487 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has Quechan Utility detected?

51 contaminants were tested in Quechan Utility's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does Quechan Utility have any EPA violations?

Yes, Quechan Utility has 487 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, RPT, TT. 13 are health-based violations.

How many people does Quechan Utility serve?

Quechan Utility serves approximately 5,660 people, Arizona.

What type of water does Quechan Utility provide?

Quechan Utility sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is 090400089.

How does Quechan Utility compare to other utilities in Arizona?

Quechan Utility scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Arizona state page for a full comparison of water systems.