Current Noncompliance AZ

City of El Mirage

EPA ID: AZ0407091 ยท 39,884 people served ยท 4 ZIP codes

ZipCheckup's reading of EPA records for City of El Mirage (AZ0407091): 1 violation recorded with unresolved status in the SDWIS data used. Open violations at City of El Mirage number 1 in the EPA compliance data, for a system that serves about 39,884 people. An open status describes how each violation is logged in the federal record; it is not a measurement of what comes out of any individual tap.

Data: EPA SDWIS

C ยท 59
Avg Safety Score
39,884
People Served
4
ZIP Codes Served
18
Violations (since 2021)
Groundwater
Water Source
Below the reporting limit
Most recent lead 90th percentile on record (monitoring period ending 2025-12-31)
Zone 2
County Radon Potential ยท Moderate
12
Contaminants Flagged
$280K
Median Home Value in ZIP Codes Served

Service Area Map

Coverage area for City of El Mirage Source: EPA SDWIS service area boundaries.

Service area boundary - average Home Safety grade of mapped ZIPs: C

Demographics of ZIP Codes Served

$69,664
Median Household Income
148,001
Population of ZIP Codes Served (Census)
28%
Disadvantaged Population
50th
Poverty Percentile
50th
Energy Burden Percentile
21%
Pre-1986 Housing

The ZIP codes associated with City of El Mirage have a median household income of $69,664 and about 148,001 residents live in those ZIP codes (Census; not the number of people this system supplies).

๐Ÿ’ง Where Does Your Water Come From?

Groundwater

City of El Mirage's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.

Elevated Risk
Source Contamination Risk
40th
Wastewater Discharge Proximity
50th
Superfund Site Proximity

Infrastructure Risk

28 yr
Estimated pipe age (modeled from housing age)
PEX or Copper
Likely pipe material (modeled)
39 yr
Est. Remaining Life
Stable
Decay Status
Installed 42% of expected lifespan used (estimate) End of life

PFAS in ZIP Codes This System Serves

PFAS ("forever chemicals") have been reported in samples from water systems associated with the ZIP codes in this system's area. These results can come from other water systems serving the same ZIP codes; check the UCMR5 section for any results reported for this system. 11 detections recorded. 1 detection is above the level of a federal PFAS MCL (4 ppt for PFOA and PFOS), with compliance required from 2029.

Health concern: Exposure to certain PFAS has been associated with some cancers and with immune and developmental effects; effects differ by compound. Many PFAS break down very slowly in the environment.
Recommended filter: An activated carbon filter certified under NSF/ANSI 53 or a reverse osmosis system certified under NSF/ANSI 58 for the PFAS listed in its certification. Find the right filter โ†’

Comparable Water Systems

Similar-sized systems in Arizona

C 2 violations
City of San Luis
39,705 people
B 9 violations
Epcor - Sun City
38,016 people
B 0 violations
City of Prescott
42,217 people
D 38 violations
Oro Valley Water Utility
42,316 people
C 0 violations

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

PFAS Treatment Water Filtration
PFAS Treatment $375
Water Filtration $225
Total Estimated Cost $600

Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.

Cost of Inaction

Illustrative per-household cost scenario based on stated assumptions:

Estimated Healthcare Costs $1,500

Annual per household (ZipCheckup estimate)

PFAS Exposure - Lifetime Cost $1,000

Per person (emerging research est.)

Estimated Cumulative Cost Per Household

5 years
$7,665
10 years
$15,330
20 years
$30,660

Compare: Estimated remediation cost is $600 (one-time) vs. $15,330 in estimated inaction costs over 10 years.

Individual costs vary by household size, property, and health factors. These estimates are for awareness, not financial advice.

System Overview

City of El Mirage (EPA ID: AZ0407091) is a community water system in Arizona that serves approximately 39,884 people from groundwater sources.

This system provides water to 4 ZIP codes across 3 communities.

ZIP-Area Home Safety Context: C (59/100)

This is the average Home Safety Score for 2 of 4 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.

Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.

Violation History

1 current noncompliance record in the accepted 2026Q2 snapshot; none are classified as health-based in this evidence.

Status breakdown for accepted records with record years 2021-2026: 17 resolved, 0 archived, 0 addressed, and 1 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Date Contaminant Type Status
January 1, 2026 Lead and Copper Rule Non-health-based Unaddressed (current)
October 2, 2025 Consumer Confidence Rule Non-health-based Resolved
September 1, 2025 Revised Total Coliform Rule Non-health-based Resolved
September 1, 2025 Chlorine Non-health-based Resolved
August 1, 2025 Chlorine Non-health-based Resolved
July 1, 2025 Chlorine Non-health-based Resolved
October 1, 2022 1,2-DIBROMO-3-CHLOROPROPANE Non-health-based Resolved
July 1, 2022 Arsenic Non-health-based Resolved
April 1, 2022 Chlorine Non-health-based Resolved
April 1, 2022 Arsenic Non-health-based Resolved
January 1, 2021 Gross Alpha Non-health-based Resolved
January 1, 2021 Combined Uranium Non-health-based Resolved
January 1, 2021 Combined Radium (-226 and -228) Non-health-based Resolved
January 1, 2021 Radium-226 Non-health-based Resolved
January 1, 2021 Radium-228 Non-health-based Resolved
January 1, 2021 Nitrate Non-health-based Resolved
January 1, 2021 Nitrate Non-health-based Resolved
January 1, 2021 Nitrate Non-health-based Resolved

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Contaminant Category Violations Health-Based
Chlorine Monitoring & Reporting 4 No
Nitrate Monitoring & Reporting 3 No
Arsenic Monitoring & Reporting 2 No
1,2-DIBROMO-3-CHLOROPROPANE Other Violation 1 No
Gross Alpha Monitoring & Reporting 1 No
Combined Uranium Monitoring & Reporting 1 No
Combined Radium (-226 and -228) Monitoring & Reporting 1 No
Radium-226 Monitoring & Reporting 1 No
Radium-228 Monitoring & Reporting 1 No
Lead and Copper Rule Monitoring & Reporting 1 No
Consumer Confidence Rule Other (notice or report rule) 1 No
Chlorine Monitoring & Reporting 1 No

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

Lead Level Exceeds Action Level Sample Date
Below the reporting limit No 2025-12-31

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

Radon Risk in Service Area

4 of 4 ZIP records with known zones are in EPA Radon Zone 2.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by AZ or modeled from parcel and building-footprint data.

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for City of El Mirage (AZ0407091) on EPA.gov.

Frequently Asked Questions

Is City of El Mirage water safe to drink?

The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.

How many people does City of El Mirage serve?

City of El Mirage serves approximately 39,884 people across 4 ZIP codes in Arizona.

Where does City of El Mirage get its water?

The primary water source is groundwater.

Federal UCMR5 PFAS Monitoring: Detected

This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected; the table compares each one with the EPA MCL where one exists (April 2024 rule, compliance required from 2029) and with this state's enforceable standard where one exists.

Samples collected
522
Detections
7
Latest sample
3/6/2024
Highest analyte
PFPeA: 10 ppt
Analyte Max detected EPA MCL (compliance required from 2029) Status
PFPeA 10 ppt No federal MCL โ€”
PFBS 9 ppt No federal MCL โ€”
PFHxA 6 ppt No federal MCL โ€”
PFOA 4 ppt 4 ppt Below EPA MCL

EPA's April 2024 PFAS rule sets MCLs of 4 ppt for PFOA and PFOS and 10 ppt for PFHxS, PFNA and HFPO-DA (GenX); water systems must comply from 2029. Other PFAS compounds have no individual federal MCL. A state standard is shown only where this system's state has its own enforceable PFAS limit. Detection results are EPA UCMR5 samples, not a measurement at your tap.

Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) โ€” per-system federal sampling, 2023โ€“2025. EPA UCMR5 monitoring program โ†’

Understand PFAS health context and filtration โ†’

How Water Systems Appear in Rankings

Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.

Frequently Asked Questions

Is water from City of El Mirage safe to drink? ▼
City of El Mirage has 18 recorded violations since 2021. The C shown is a ZIP-area score, not a grade for this utility; see the violation table for what was violated.
Should I use a water filter? ▼
Given 18 recorded violations, review the violation types and dates; a filter certified for a specific contaminant of concern can reduce that contaminant at the tap. Monitoring or reporting violations are not something a filter addresses.
How many people does City of El Mirage serve? ▼
City of El Mirage serves approximately 39,884 people with drinking water across 4 ZIP codes.
What is City of El Mirage's water source? ▼
City of El Mirage draws water from groundwater sources. Source type affects which contaminants are most likely to be present.
Is there lead in City of El Mirage's water? ▼
The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero. This is at or below the EPA lead action level, which triggers system action and is not a safe level; the EPA health goal for lead is zero.
What is the demographic profile of the ZIP codes associated with City of El Mirage? ▼
The ZIP codes mapped to City of El Mirage have a median household income of $69,664 (Census ZIP-code estimate). Demographic data is sourced from the U.S. Census Bureau and EPA EJScreen.
Where does City of El Mirage get its water? ▼
City of El Mirage's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table. The available violation history and environmental indicators place this system in the elevated review category; they do not measure current source contamination.

How to cite this page

APA ZipCheckup. (n.d.). City of El Mirage (AZ): 18 EPA Violations. https://zipcheckup.com/water-system/az0407091/
BibTeX
@misc{zipcheckup-water-system-az0407091,
  author = {{ZipCheckup}},
  title  = {{City of El Mirage (AZ): 18 EPA Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/az0407091/}
}

What You Can Do

1

Test your water

Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter โ†’

2

Check your specific ZIP code

Water quality can vary within a system. View nearest ZIP report โ†’

3

Contact your utility

City of El Mirage (EPA ID: AZ0407091) - request the latest Consumer Confidence Report or ask about specific contaminants.

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