What was found in ZIP 85901
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Copper | 444.8 µg/L 34% of the EPA limit 1300 µg/L Main supplier: CITY OF SHOW LOW · 17,139 people · 2019 | 1/1 | SYR4 |
| Nitrate | 210 µg/L 2.1% of the EPA limit 10000 µg/L Main supplier: CITY OF SHOW LOW · 17,139 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 201 µg/L 2% of the EPA limit 10000 µg/L Main supplier: CITY OF SHOW LOW · 17,139 people · 2019 | 1/1 | SYR4 |
| Fluoride | 171 µg/L 4.3% of the EPA limit 4000 µg/L Main supplier: CITY OF SHOW LOW · 17,139 people · 2019 | 1/1 | SYR4 |
| Barium | 70 µg/L 3.5% of the EPA limit 2000 µg/L Main supplier: CITY OF SHOW LOW · 17,139 people · 2019 | 1/1 | SYR4 |
| Selenium | 39.15 µg/L 78% of the EPA limit 50 µg/L Main supplier: CITY OF SHOW LOW · 17,139 people · 2019 | 1/1 | SYR4 |
| Lithium | 18.4 µg/L No EPA limit set Main supplier: CITY OF SHOW LOW · 17,139 people · 2024 | 1/1 | UCMR-5 |
| Arsenic | 10 µg/L 100% of the EPA limit 10 µg/L Main supplier: CITY OF SHOW LOW · 17,139 people · 2019 | 1/1 | SYR4 |
| Lead | 7.28 µg/L 49% of the EPA limit 15 µg/L Main supplier: CITY OF SHOW LOW · 17,139 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 2.7 pCi/L 54% of the EPA limit 5 pCi/L Main supplier: CITY OF SHOW LOW · 17,139 people · 2019 | 1/1 | SYR4 |
| TTHM | 1.74 µg/L 2.2% of the EPA limit 80 µg/L Main supplier: CITY OF SHOW LOW · 17,139 people · 2019 | 1/1 | SYR4 |
| Thallium, Total | 1.465 µg/L 73% of the EPA limit 2 µg/L Main supplier: CITY OF SHOW LOW · 17,139 people · 2019 | 1/1 | SYR4 |
| Cadmium | 0.2000 µg/L 4% of the EPA limit 5 µg/L Main supplier: CITY OF SHOW LOW · 17,139 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF SHOW LOW · 17,139 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.
Water suppliers serving ZIP 85901
| Supplier | State | Population served |
|---|---|---|
| CITY OF SHOW LOW | AZ | 17,139 |
Frequently asked questions about ZIP 85901 tap water
Is the tap water in ZIP 85901 safe to drink?
EPA testing detected 14 contaminants across the water suppliers serving ZIP 85901. 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 85901?
1 public water supplier report EPA drinking-water monitoring for ZIP 85901. Each is listed above with its population served.
What contaminants are in ZIP 85901's water?
EPA monitoring detected Copper, Nitrate, Nitrate-Nitrite, Fluoride, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.