TapSafetyReport
F0/100

EPCOR - CHAPARRAL CITY — Water Quality Report 2026

Serving 26,026 people · Arizona

Water Source
Surface Water
County
—
System ID
AZ0407017
Violations
415

Contaminant Test Results

EPA Violation History

4

Violations (last 5yr)

0

Unresolved

0

Health-Related

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, 2024 – August 31, 2024Rule: Surface Water Treatment 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, 2023 – September 30, 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: April 1, 2023 – June 30, 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: April 1, 2023 – June 30, 2023Enforcement: 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

Frequently Asked Questions About EPCOR - CHAPARRAL CITY

Is EPCOR - CHAPARRAL CITY water safe to drink?

EPCOR - CHAPARRAL CITY water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 415 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has EPCOR - CHAPARRAL CITY detected?

69 contaminants were tested in EPCOR - CHAPARRAL CITY's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.

Does EPCOR - CHAPARRAL CITY have any EPA violations?

Yes, EPCOR - CHAPARRAL CITY has 415 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, MCL, Other. 9 are health-based violations.

How many people does EPCOR - CHAPARRAL CITY serve?

EPCOR - CHAPARRAL CITY serves approximately 26,026 people, Arizona. The system provides water to 1 community: Fountain Hills.

What type of water does EPCOR - CHAPARRAL CITY provide?

EPCOR - CHAPARRAL CITY sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is AZ0407017.

How does EPCOR - CHAPARRAL CITY compare to other utilities in Arizona?

EPCOR - CHAPARRAL CITY 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.

Cities Served

Fountain Hills