What was found in ZIP 86326
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 |
|---|---|---|---|
| Nitrate | 579 µg/L 5.8% of the EPA limit 10000 µg/L Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2019
Highest in the ZIP: 767.5 µg/L — COTTONWOOD MUNICIPAL WATER VV6 · 4,509 people · 2019 | 2/2 | SYR4 |
| Barium | 610 µg/L 31% of the EPA limit 2000 µg/L Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2018
Highest in the ZIP: 653.5 µg/L — COTTONWOOD MUNICIPAL WATER VV6 · 4,509 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 510 µg/L 5.1% of the EPA limit 10000 µg/L Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2018
Highest in the ZIP: 514 µg/L — COTTONWOOD MUNICIPAL WATER VV6 · 4,509 people · 2016 | 2/2 | SYR4 |
| Fluoride | 425 µg/L 11% of the EPA limit 4000 µg/L Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2018 | 2/2 | SYR4 |
| Copper | 317 µg/L 24% of the EPA limit 1300 µg/L Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2017 | 2/2 | SYR4 |
| Lithium | 51.5 µg/L No EPA limit set Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2025
Highest in the ZIP: 59 µg/L — COTTONWOOD MUNICIPAL WATER VV6 · 4,509 people · 2025 | 2/2 | UCMR-5 |
| Arsenic | 9.72 µg/L 97% of the EPA limit 10 µg/L Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2019
Highest in the ZIP: 21.135 µg/L — COTTONWOOD MUNICIPAL WATER VV6 · 4,509 people · 2019 | 2/2 | SYR4 |
| Chromium | 12.6 µg/L 13% of the EPA limit 100 µg/L Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2018 | 2/2 | SYR4 |
| TTHM | 9.32 µg/L 12% of the EPA limit 80 µg/L Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2019 | 2/2 | SYR4 |
| Lead | 4.895 µg/L 33% of the EPA limit 15 µg/L Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2017
Highest in the ZIP: 6.25 µg/L — COTTONWOOD MUNICIPAL WATER VV6 · 4,509 people · 2018 | 2/2 | SYR4 |
| Bromoform | 4.4 µg/L No EPA limit set Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 3 µg/L No EPA limit set Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2019 | 2/2 | SYR4 |
| Xylenes, Total | 1.865 µg/L 0% of the EPA limit 10000 µg/L Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.385 µg/L 2.3% of the EPA limit 60 µg/L Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 1.2 µg/L No EPA limit set Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 1.2 µg/L No EPA limit set Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.6000 pCi/L 12% of the EPA limit 5 pCi/L Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2019 | 2/2 | SYR4 |
| Pfpea | 0.0032 µg/L No EPA limit set Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2025 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: COTTONWOOD MUNICIPAL WATER CW1 · 11,023 people · 2023 | 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 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 86326
| Supplier | State | Population served |
|---|---|---|
| COTTONWOOD MUNICIPAL WATER CW1 | AZ | 11,023 |
| COTTONWOOD MUNICIPAL WATER VV6 | AZ | 4,509 |
Frequently asked questions about ZIP 86326 tap water
Is the tap water in ZIP 86326 safe to drink?
EPA testing detected 19 contaminants across the water suppliers serving ZIP 86326. 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 86326?
2 public water suppliers report EPA drinking-water monitoring for ZIP 86326. Each is listed above with its population served.
What contaminants are in ZIP 86326's water?
EPA monitoring detected Nitrate, Barium, Nitrate-Nitrite, Fluoride, Copper, and others across this ZIP's suppliers. The full list with levels and sources is above.