Current Noncompliance AZ

City of El Mirage

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

ZipCheckup's reading of EPA SDWIS for City of El Mirage (AZ0407091): 1 unresolved EPA violation on record. Federal compliance records for City of El Mirage list 1 open violation that has not yet been resolved - the utility serves approximately 39,884 people, and each outstanding finding remains logged and active in the EPA enforcement database.

Data: EPA SDWIS

C ยท 59
Avg Safety Score
39,884
People Served
4
ZIP Codes Served
18
Violations (5yr)
Groundwater
Water Source
Zone 2
Radon Risk ยท Moderate
12
Contaminants Flagged
$280K
Median Home Value in Service Area

Service Area Map

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

Service area boundary - Grade C

Service Area Demographics

$69,664
Median Household Income
148,001
Service Area Population
28%
Disadvantaged Population
50th
Poverty Percentile
50th
Energy Burden Percentile
21%
Pre-1986 Housing

The City of El Mirage serves a community with a median household income of $69,664 and an estimated 148,001 residents across its service area.

๐Ÿ’ง Where Does Your Water Come From?

Groundwater

City of El Mirage's water is pumped from underground aquifers. 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
Avg Pipe Age
PEX or Copper
Pipe Material
39 yr
Est. Remaining Life
Stable
Decay Status
Installed 42% of expected lifespan used End of life

Detected Contaminants

How City of El Mirage compares to EPA limits

Lead 3 mg/L (action level) (EXCEEDS LIMIT)
0 EPA Limit: 0.015 mg/L (action level)
Brain damage in children, kidney & blood pressure in adults
Barium 2 mg/L (100% of limit)
0 EPA Limit: 2 mg/L

What This Means For You

Lead at 3 mg/L (action level) exceeds the EPA maximum of 0.015 mg/L (action level). Brain damage in children, kidney & blood pressure in adults. Consider reverse osmosis filtration.

Revised Total Coliform Rule at 4 presence exceeds the EPA maximum of presence.

Contaminant 2931 at 1 mg/L exceeds the EPA maximum of mg/L.

Gross Alpha at 1 pCi/L exceeds the EPA maximum of pCi/L. Increased cancer risk from radioactive particles. Consider reverse osmosis filtration.

PFAS Detected in Service Area

PFAS ("forever chemicals") have been detected in water serving this system's area. 11 detections recorded. 1 exceeds federal EPA limits (4 ppt for PFOA/PFOS).

State limits: PFOA: 0.01 ppt, PFOS: 0.01 ppt
Health concern: PFAS are linked to cancer, thyroid disease, immune suppression, and developmental effects. They do not break down naturally.
Recommended filter: Reverse osmosis (RO) or activated carbon filters certified for PFAS removal. Find the right filter โ†’

Lead was detected in this water system. reverse osmosis filtration can reduce exposure.

Find a certified water 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

Flood Insurance Radon Mitigation PFAS Treatment Water Filtration
Flood Insurance $600
Radon Mitigation $400
PFAS Treatment $400
Water Filtration $225
Total Estimated Cost $1,625

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

If water quality issues in this service area are not addressed, the estimated financial impact per household is:

Estimated Healthcare Costs $1,500

Annual per household (CDC est.)

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 $1,625 (one-time) vs. $15,330 in estimated inaction costs over 10 years.

Estimates based on published EPA, CDC, and peer-reviewed research. Individual costs vary by household size, property, and health factors. These are conservative lower-bound estimates intended 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 Stage 1 DBP Rule Non-health-based Unaddressed (current)
October 2, 2025 Surface Water Treatment Rule Non-health-based Resolved
September 1, 2025 Consumer Confidence Report Rule Non-health-based Resolved
September 1, 2025 Revised Total Coliform Rule Non-health-based Resolved
August 1, 2025 Revised Total Coliform Rule Non-health-based Resolved
July 1, 2025 Revised Total Coliform Rule Non-health-based Resolved
October 1, 2022 Contaminant 2931 Non-health-based Resolved
July 1, 2022 Barium Non-health-based Resolved
April 1, 2022 Revised Total Coliform Rule Non-health-based Resolved
April 1, 2022 Barium Non-health-based Resolved
January 1, 2021 Gross Alpha Non-health-based Resolved
January 1, 2021 Combined Radium Non-health-based Resolved
January 1, 2021 Gross Beta 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 Lead Non-health-based Resolved
January 1, 2021 Lead Non-health-based Resolved
January 1, 2021 Lead Non-health-based Resolved

Contaminants Detected

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

Contaminant Category Violations Health-Based
Revised Total Coliform Rule Microbiological 4 No
Lead Inorganic 3 No
Barium Inorganic 2 No
Contaminant 2931 Other Violation 1 No
Gross Alpha Radionuclides 1 No
Combined Radium Radionuclides 1 No
Gross Beta Radionuclides 1 No
Radium-226 Radionuclides 1 No
Radium-228 Radionuclides 1 No
Stage 1 DBP Rule Treatment Failure 1 No
Surface Water Treatment Rule Treatment Failure 1 No
Consumer Confidence Report Rule Reporting Failure 1 No

Lead & Copper

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

Lead Level Exceeds Action Level Sample Date
0 mg/L No N/A

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

Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Need help with your water quality?

Typical cost: Water test: typically $20โ€“$50 (DIY kit) ยท Professional inspection: $150โ€“$400

Find the Right Water Filter

Free tip: Let cold water run for 2 minutes before drinking โ€” this helps flush lead from your pipes.

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 the full compliance record 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 below the current state-enforceable MCL.

Samples collected
522
Detections
7
Latest sample
3/6/2024
Highest analyte
PFPeA: 10 ppt
Analyte Max detected Current MCL Status
PFPeA 10 ppt โ€” โ€”
PFBS 9 ppt โ€” โ€”
PFHxA 6 ppt โ€” โ€”
PFOA 4 ppt 10 ppt Below current MCL

Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.

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 a C safety grade based on 18 recorded violations. Some contaminants may exceed EPA limits - independent testing is recommended.
What contaminants are in City of El Mirage's water?
Detected contaminants include Lead, Revised Total Coliform Rule, Barium, Contaminant 2931. Each is compared against EPA maximum contaminant levels (MCLs) in the detailed breakdown above.
Should I use a water filter?
Given 4 contaminants above EPA limits, a certified water filter can provide an extra layer of protection. The best type depends on specific contaminants in your water.
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.
What is the demographic profile of City of El Mirage's service area?
The City of El Mirage service area has a median household income of $69,664. 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 pumped from underground aquifers. 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. Based on the exported violation history and environmental factors, the source contamination risk is classified as elevated.

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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