D
41

Poor Water Quality

El Mirage, AZ 85335

Maricopa County · Population served: 47,224 · Data updated March 2026

Water Systems Serving This Area

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EL MIRAGE CITY OF
Groundwater · Pop. 39,884
PWSID: AZ0407091
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EPCOR - WILLOW VALLEY/LAKE CIMARRON
Groundwater · Pop. 596
PWSID: AZ0408129
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EPCOR - TUBAC
Groundwater · Pop. 2,076
PWSID: AZ0412001
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EPCOR - MOOVALYA KEYS
Surface water · Pop. 1,298
PWSID: AZ0415006
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EPCOR - LAKESIDE
Surface water · Pop. 1,775
PWSID: AZ0415010

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
29.0
15 ppb 1 ppb Exceeded

PFAS / Forever Chemicals

4 detected All below limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFPeA10.0 pptNo standardUnregulated
PFBS9.0 ppt2000 ppt100 pptBelow limit
PFHxA6.0 pptNo standard400 pptUnregulated
PFOA4.0 ppt4 ppt4 pptBelow limit

Violation History (Last 5 Years)

190Total (5yr)
0Health-Based
45Major

Water Quality Summary

Understanding Your Water in El Mirage

Tap water quality in El Mirage, Arizona (85335) receives an overall grade of D (Poor) with a score of 41 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 18 points below the Arizona state average of 60. Compared to the national average (75), this area scores significantly lower. The area is served by 9 water systems providing water to approximately 47,224 people, using surface water and groundwater sources. Testing has found elevated levels of Lead that warrant attention. PFAS testing detected 4 compounds, all currently below EPA limits. The area has 190 violations over the past 5 years, though none were classified as health-based.

Your Score 41/100 D
vs State 18 pts below Arizona avg (60)
vs National 34 pts below national avg (75)

What a Grade D Means

A score of 41/100 signals poor water quality in El Mirage, AZ. Significant issues have been identified, which may include multiple violations, contaminant levels near or above regulatory limits, or PFAS contamination. We recommend reviewing the detailed contaminant data below, considering a certified water filter, and checking your utility's Consumer Confidence Report for the latest information.

Surface water: sourced from rivers, lakes, or reservoirs
Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

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Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Tap water in El Mirage, Arizona receives a grade of D (Poor) with a score of 41/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 85335 is served by 9 water systems using surface water, groundwater sources, providing water to approximately 47,224 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Yes — lead levels in El Mirage, Arizona are 29.0 ppb, which exceeds the EPA action level of 15 ppb. This is a serious concern. We strongly recommend using a certified lead-removal filter for all drinking and cooking water, and having your water independently tested.

4 PFAS compounds were detected in water serving El Mirage, Arizona, but all are currently below EPA limits. While levels are within regulatory standards, some health organizations recommend minimizing any PFAS exposure. Activated carbon or reverse osmosis filters can reduce PFAS levels.

Water systems serving El Mirage, Arizona have received 190 violations in the last 5 years. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (lead, PFAS), residents in El Mirage, Arizona should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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