What was found in El Mirage's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 5975 µg/L 60% of the EPA limit 10000 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 5877.5 µg/L 59% of the EPA limit 10000 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Fluoride | 1250 µg/L 31% of the EPA limit 4000 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Copper | 278 µg/L 21% of the EPA limit 1300 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Lithium | 51.5 µg/L No EPA limit set Main supplier: EL MIRAGE CITY OF · 39,884 people · 2024 | 1/1 | UCMR-5 |
| Barium | 41.2 µg/L 2.1% of the EPA limit 2000 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Xylenes, Total | 25.91 µg/L 0.3% of the EPA limit 10000 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Chromium | 14.75 µg/L 15% of the EPA limit 100 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Arsenic | 10 µg/L 100% of the EPA limit 10 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| TTHM | 7.32 µg/L 9.2% of the EPA limit 80 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Selenium | 5.735 µg/L 11% of the EPA limit 50 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Ethylbenzene | 5.2 µg/L 0.7% of the EPA limit 700 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Lead | 4.5 µg/L 30% of the EPA limit 15 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 3.76 µg/L 13% of the EPA limit 30 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.93 µg/L 32% of the EPA limit 6 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 1.575 µg/L No EPA limit set Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.555 pCi/L 10% of the EPA limit 15 pCi/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Bromoform | 1.37 µg/L No EPA limit set Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.295 µg/L 2.2% of the EPA limit 60 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 0.8000 µg/L No EPA limit set Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 0.7800 pCi/L 16% of the EPA limit 5 pCi/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Tetrachloroethylene | 0.5000 µg/L 10% of the EPA limit 5 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Mercury | 0.3000 µg/L 15% of the EPA limit 2 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0425 µg/L 21% of the EPA limit 0.2000 µg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2019 | 1/1 | SYR4 |
| Pfpea | 0.0100 µg/L No EPA limit set Main supplier: EL MIRAGE CITY OF · 39,884 people · 2024 | 1/1 | UCMR-5 |
| PFBS | 0.0090 µg/L No EPA limit set Main supplier: EL MIRAGE CITY OF · 39,884 people · 2024 | 1/1 | UCMR-5 |
| Pfhxa | 0.0060 µg/L No EPA limit set Main supplier: EL MIRAGE CITY OF · 39,884 people · 2024 | 1/1 | UCMR-5 |
| PFOA | 0.0040 µg/L No EPA limit set Main supplier: EL MIRAGE CITY OF · 39,884 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: EL MIRAGE CITY OF · 39,884 people · 2025 | 1/1 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving El Mirage
| Supplier | Population served |
|---|---|
| EL MIRAGE CITY OF | 39,884 |
Frequently asked questions about El Mirage tap water
Is El Mirage tap water safe to drink?
EPA testing detected 29 contaminants in the water serving El Mirage. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve El Mirage?
1 public water supplier report drinking-water monitoring for El Mirage, Arizona to the EPA. Each is listed above with its population served.
What contaminants are in El Mirage's water?
The contaminants EPA monitoring detected in El Mirage include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Lithium. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.