What was found in ZIP 85257
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 9000 µg/L 90% of the EPA limit 10000 µg/L | 2/2 | SYR4 |
| Nitrate-Nitrite | 6400 µg/L 64% of the EPA limit 10000 µg/L | 2/2 | SYR4 |
| Copper | 3110 µg/L 239% of the EPA limit, in the worst sample — 1300 µg/L | 2/2 | SYR4 |
| Barium | 984 µg/L 49% of the EPA limit 2000 µg/L | 2/2 | SYR4 |
| Fluoride | 800 µg/L 20% of the EPA limit 4000 µg/L | 2/2 | SYR4 |
| Chlorite | 503 µg/L 50% of the EPA limit 1000 µg/L | 1/2 | SYR4 |
| Lithium | 160 µg/L No EPA limit set | 2/2 | UCMR-5 |
| TTHM | 102 µg/L 127% of the EPA limit, in the worst sample — 80 µg/L | 2/2 | SYR4 |
| Chromium | 75.2 µg/L 75% of the EPA limit 100 µg/L | 2/2 | SYR4 |
| Lead | 62.5 µg/L 417% of the EPA limit, in the worst sample — 15 µg/L | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 48 µg/L 80% of the EPA limit 60 µg/L | 2/2 | SYR4 |
| Bromate | 11 µg/L 110% of the EPA limit, in the worst sample — 10 µg/L | 1/2 | SYR4 |
| Arsenic | 10.4 µg/L 104% of the EPA limit, in the worst sample — 10 µg/L | 2/2 | SYR4 |
| Combined Uranium | 7.4 µg/L 25% of the EPA limit 30 µg/L | 2/2 | SYR4 |
| Selenium | 3.4 µg/L 6.8% of the EPA limit 50 µg/L | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3.2 pCi/L 21% of the EPA limit 15 pCi/L | 2/2 | SYR4 |
| Xylenes, Total | 3 µg/L 0% of the EPA limit 10000 µg/L | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 2.4 pCi/L 48% of the EPA limit 5 pCi/L | 2/2 | SYR4 |
| Dichloromethane | 1 µg/L 20% of the EPA limit 5 µg/L | 1/2 | SYR4 |
| Ethylbenzene | 0.5500 µg/L 0.1% of the EPA limit 700 µg/L | 1/2 | SYR4 |
| 2,4-D | 0.3800 µg/L 0.5% of the EPA limit 70 µg/L | 1/2 | SYR4 |
| Picloram | 0.1900 µg/L 0% of the EPA limit 500 µg/L | 1/2 | SYR4 |
| Ethylene Dibromide | 0.0860 µg/L 172% of the EPA limit, in the worst sample — 0.0500 µg/L | 1/2 | SYR4 |
| Thallium, Total | 0.0600 µg/L 3% of the EPA limit 2 µg/L | 1/2 | SYR4 |
| Benzo(A)Pyrene | 0.0400 µg/L 20% of the EPA limit 0.2000 µg/L | 1/2 | SYR4 |
| PFBS | 0.0160 µg/L No EPA limit set | 2/2 | UCMR-5 |
| Pfba | 0.0060 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Lead | 0.0027 mg/L 18% of the EPA limit 0.0150 mg/L | 2/2 | 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 single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 85257
| Supplier | State | Population served |
|---|---|---|
| PHOENIX CITY OF | 1,695,000 | |
| SCOTTSDALE CITY OF | AZ | 241,361 |
Frequently asked questions about ZIP 85257 tap water
Is the tap water in ZIP 85257 safe to drink?
EPA testing detected 28 contaminants across the water suppliers serving ZIP 85257. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 85257?
2 public water suppliers report EPA drinking-water monitoring for ZIP 85257. Each is listed above with its population served.
What contaminants are in ZIP 85257's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Copper, Barium, Fluoride, and others across this ZIP's suppliers. The full list with levels and sources is above.