Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
13
health-based violations
236
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 2006-01-01 → 2006-03-31 |
| MCL | Health-based | Resolved | 2005-10-01 → 2005-12-31 |
| MCL | Health-based | Resolved | 2005-07-01 → 2005-09-30 |
| MCL | Health-based | Resolved | 2005-04-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2002-08-01 → 2002-08-31 |
| MCL | Health-based | Resolved | 2000-04-01 → 2000-04-30 |
| MCL | Health-based | Resolved | 1999-01-01 → 1999-03-31 |
| MCL | Health-based | Resolved | 1998-12-01 → 1998-12-31 |
| MCL | Health-based | Resolved | 1998-10-01 → 1998-10-31 |
| MCL | Health-based | Archived | 1989-10-01 → 1989-12-31 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
Other contaminants detected
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 this
system's samples — over 100% is worth reading, but is not by itself a
violation. Where a single sample came in higher than that percentile, it
is noted under the bar. Formal violations are listed separately.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 8475 µg/L 85% of the EPA limit 10000 µg/L
worst single sample: 9560 µg/L | 346/348 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 8453 µg/L 85% of the EPA limit 10000 µg/L
worst single sample: 9560 µg/L | 168/169 | SYR4 | 2012–2019 |
| Copper | 318 µg/L 24% of the EPA limit 1300 µg/L
worst single sample: 390 µg/L | 105/106 | SYR4 | 2013–2019 |
| Arsenic | 8.625 µg/L 86% of the EPA limit 10 µg/L
worst single sample: 13.9 µg/L | 96/96 | SYR4 | 2012–2019 |
| TTHM | 22.705 µg/L 28% of the EPA limit 80 µg/L
worst single sample: 32.6 µg/L | 92/92 | SYR4 | 2012–2019 |
| Barium | 190 µg/L 9.5% of the EPA limit 2000 µg/L
worst single sample: 200 µg/L | 75/75 | SYR4 | 2012–2019 |
| Fluoride | 1095.5 µg/L 27% of the EPA limit 4000 µg/L
worst single sample: 1140 µg/L | 70/75 | SYR4 | 2012–2019 |
| Selenium | 12.39 µg/L 25% of the EPA limit 50 µg/L
worst single sample: 20 µg/L | 68/75 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 4.475 µg/L 7.5% of the EPA limit 60 µg/L
worst single sample: 5.8 µg/L | 66/92 | SYR4 | 2012–2019 |
| Combined Uranium | 6.175 µg/L 21% of the EPA limit 30 µg/L
worst single sample: 6.6 µg/L | 62/67 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon And U | 2.4 pCi/L 16% of the EPA limit 15 pCi/L
worst single sample: 2.9 pCi/L | 51/73 | SYR4 | 2012–2019 |
| Chromium | 17.4 µg/L 17% of the EPA limit 100 µg/L
worst single sample: 29 µg/L | 33/75 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 16/16 | LCR | 2025 |
| Combined Radium (-226 And -228) | 1.44 pCi/L 29% of the EPA limit 5 pCi/L
worst single sample: 1.7 pCi/L | 14/73 | SYR4 | 2012–2019 |
| Lithium | 114 µg/L No EPA limit set | 14/14 | UCMR-5 | 2025 |
| Lead | 6.56 µg/L 44% of the EPA limit 15 µg/L
worst single sample: 7.1 µg/L | 5/106 | SYR4 | 2013–2019 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.2535 µg/L 127% of the EPA limit, at the 95th percentile of samples — 0.2000 µg/L
worst single sample: 0.2600 µg/L | 2/110 | SYR4 | 2012–2019 |
| Bromodichloromethane | 1.99 µg/L No EPA limit set
worst single sample: 2 µg/L | 2/2 | SYR4 | 2019 |
| Bromoform | 6.47 µg/L No EPA limit set
worst single sample: 6.5 µg/L | 2/2 | SYR4 | 2019 |
| Chloroform | 5.69 µg/L No EPA limit set
worst single sample: 5.7 µg/L | 2/2 | SYR4 | 2019 |
| Dibromoacetic Acid | 1.985 µg/L No EPA limit set
worst single sample: 2 µg/L | 2/2 | SYR4 | 2019 |
| Dibromochloromethane | 5.275 µg/L No EPA limit set
worst single sample: 5.3 µg/L | 2/2 | SYR4 | 2019 |
| Picloram | 0.1000 µg/L 0% of the EPA limit 500 µg/L | 1/93 | SYR4 | 2012–2019 |
| Xylenes, Total | 0.6000 µg/L 0% of the EPA limit 10000 µg/L | 1/79 | SYR4 | 2012–2019 |
81 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPentachlorophenolSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Avondale City of
Is Avondale City of tap water safe to drink?
EPA monitoring detected 32 contaminants in Avondale City of's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in Avondale City of's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Copper, Arsenic, TTHM, and others. The full list with the level and data source for each is above.
How many people does Avondale City of serve?
Avondale City of reports serving 96,130 people in Arizona, per its EPA record.
Has Avondale City of had any water quality violations?
The EPA has 236 violations on file for Avondale City of, of which 13 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
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.