What was found in Queen Creek'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 | 8400 µg/L 84% of the EPA limit 10000 µg/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2019
Highest in the city: 14150 µg/L — SUN VALLEY FARMS UNIT VI · 600 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 8313.5 µg/L 83% of the EPA limit 10000 µg/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2019
Highest in the city: 13000 µg/L — SUN VALLEY FARMS UNIT VI · 600 people · 2013 | 2/2 | SYR4 |
| Fluoride | 551 µg/L 14% of the EPA limit 4000 µg/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2019 | 2/2 | SYR4 |
| Copper | 178.75 µg/L 14% of the EPA limit 1300 µg/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2019 | 2/2 | SYR4 |
| Lithium | 152 µg/L No EPA limit set Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2025 | 1/2 | UCMR-5 |
| Barium | 66.85 µg/L 3.3% of the EPA limit 2000 µg/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2019
Highest in the city: 67 µg/L — SUN VALLEY FARMS UNIT VI · 600 people · 2013 | 2/2 | SYR4 |
| TTHM | 10.075 µg/L 13% of the EPA limit 80 µg/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2019 | 2/2 | SYR4 |
| Chromium | 7.625 µg/L 7.6% of the EPA limit 100 µg/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2019 | 2/2 | SYR4 |
| Lead | 7.206 µg/L 48% of the EPA limit 15 µg/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2019 | 2/2 | SYR4 |
| Arsenic | 6.73 µg/L 67% of the EPA limit 10 µg/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 4.6 µg/L 7.7% of the EPA limit 60 µg/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2019 | 1/2 | SYR4 |
| Combined Uranium | 2.275 µg/L 7.6% of the EPA limit 30 µg/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2017 | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.56 pCi/L 10% of the EPA limit 15 pCi/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2018 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 1.36 pCi/L 27% of the EPA limit 5 pCi/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2019 | 1/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.7500 µg/L 13% of the EPA limit 6 µg/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2019 | 1/2 | SYR4 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0120 µg/L 6% of the EPA limit 0.2000 µg/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: QUEEN CREEK TOWN OF · 95,502 people · 2025
Highest in the city: 0.0018 mg/L — SUN VALLEY FARMS UNIT VI · 600 people · 2025 | 2/2 | LCR |
Water suppliers serving Queen Creek
| Supplier | Population served |
|---|---|
| QUEEN CREEK TOWN OF | 95,502 |
| SUN VALLEY FARMS UNIT VI | 600 |
Frequently asked questions about Queen Creek tap water
Is Queen Creek tap water safe to drink?
EPA testing detected 17 contaminants in the water serving Queen Creek. 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 Queen Creek?
2 public water suppliers report drinking-water monitoring for Queen Creek, Arizona to the EPA. Each is listed above with its population served.
What contaminants are in Queen Creek's water?
The contaminants EPA monitoring detected in Queen Creek 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.