What was found in Avondale'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 | 8475 µg/L 85% of the EPA limit 10000 µg/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 8453 µg/L 85% of the EPA limit 10000 µg/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Fluoride | 1095.5 µg/L 27% of the EPA limit 4000 µg/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Copper | 318 µg/L 24% of the EPA limit 1300 µg/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Barium | 190 µg/L 9.5% of the EPA limit 2000 µg/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Lithium | 114 µg/L No EPA limit set Main supplier: AVONDALE CITY OF · 96,130 people · 2025 | 1/1 | UCMR-5 |
| TTHM | 22.705 µg/L 28% of the EPA limit 80 µg/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Chromium | 17.4 µg/L 17% of the EPA limit 100 µg/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Selenium | 12.39 µg/L 25% of the EPA limit 50 µg/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Arsenic | 8.625 µg/L 86% of the EPA limit 10 µg/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Lead | 6.56 µg/L 44% of the EPA limit 15 µg/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Bromoform | 6.47 µg/L No EPA limit set Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 6.175 µg/L 21% of the EPA limit 30 µg/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Chloroform | 5.69 µg/L No EPA limit set Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 5.275 µg/L No EPA limit set Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 4.475 µg/L 7.5% of the EPA limit 60 µg/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.4 pCi/L 16% of the EPA limit 15 pCi/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 1.99 µg/L No EPA limit set Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.985 µg/L No EPA limit set Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.44 pCi/L 29% of the EPA limit 5 pCi/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Xylenes, Total | 0.6000 µg/L 0% of the EPA limit 10000 µg/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.2535 µg/L 127% of the EPA limit, at the 95th percentile of samples — 0.2000 µg/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Picloram | 0.1000 µg/L 0% of the EPA limit 500 µg/L Main supplier: AVONDALE CITY OF · 96,130 people · 2019 | 1/1 | SYR4 |
| Pfpea | 0.0172 µg/L No EPA limit set Main supplier: AVONDALE CITY OF · 96,130 people · 2025 | 1/1 | UCMR-5 |
| PFBS | 0.0156 µg/L No EPA limit set Main supplier: AVONDALE CITY OF · 96,130 people · 2025 | 1/1 | UCMR-5 |
| PFOA | 0.0135 µg/L No EPA limit set Main supplier: AVONDALE CITY OF · 96,130 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0129 µg/L No EPA limit set Main supplier: AVONDALE CITY OF · 96,130 people · 2025 | 1/1 | UCMR-5 |
| PFOS | 0.0117 µg/L No EPA limit set Main supplier: AVONDALE CITY OF · 96,130 people · 2025 | 1/1 | UCMR-5 |
| PFHXS | 0.0094 µg/L No EPA limit set Main supplier: AVONDALE CITY OF · 96,130 people · 2025 | 1/1 | UCMR-5 |
| Pfba | 0.0065 µg/L No EPA limit set Main supplier: AVONDALE CITY OF · 96,130 people · 2025 | 1/1 | UCMR-5 |
| Pfhpa | 0.0037 µg/L No EPA limit set Main supplier: AVONDALE CITY OF · 96,130 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: AVONDALE CITY OF · 96,130 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 Avondale
| Supplier | Population served |
|---|---|
| AVONDALE CITY OF | 96,130 |
Frequently asked questions about Avondale tap water
Is Avondale tap water safe to drink?
EPA testing detected 32 contaminants in the water serving Avondale. 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 Avondale?
1 public water supplier report drinking-water monitoring for Avondale, Arizona to the EPA. Each is listed above with its population served.
What contaminants are in Avondale's water?
The contaminants EPA monitoring detected in Avondale include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium. 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.