What was found in ZIP 86403
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 | 1100 µg/L 11% of the EPA limit 10000 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2018
Highest in the ZIP: 7300 µg/L — EPCOR - LAKE HAVASU · 4,788 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 1100 µg/L 11% of the EPA limit 10000 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2014
Highest in the ZIP: 2000 µg/L — EPCOR - LAKE HAVASU · 4,788 people · 2018 | 2/2 | SYR4 |
| Fluoride | 597 µg/L 15% of the EPA limit 4000 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2017
Highest in the ZIP: 1900 µg/L — EPCOR - LAKE HAVASU · 4,788 people · 2018 | 2/2 | SYR4 |
| Copper | 542.5 µg/L 42% of the EPA limit 1300 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2017 | 2/2 | SYR4 |
| Lithium | 100 µg/L No EPA limit set Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2025 | 2/2 | UCMR-5 |
| TTHM | 84.7 µg/L 106% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2019 | 2/2 | SYR4 |
| Barium | 46 µg/L 2.3% of the EPA limit 2000 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2017 | 2/2 | SYR4 |
| Chromium | 3.17 µg/L 3.2% of the EPA limit 100 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2017
Highest in the ZIP: 20 µg/L — EPCOR - LAKE HAVASU · 4,788 people · 2018 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 17 µg/L 28% of the EPA limit 60 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2019 | 2/2 | SYR4 |
| Lead | 10.45 µg/L 70% of the EPA limit 15 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2017 | 2/2 | SYR4 |
| Arsenic | 6.75 µg/L 68% of the EPA limit 10 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2019
Highest in the ZIP: 7.7 µg/L — EPCOR - LAKE HAVASU · 4,788 people · 2019 | 2/2 | SYR4 |
| Combined Uranium | 6.8 µg/L 23% of the EPA limit 30 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2014 | 1/2 | SYR4 |
| Selenium | 1.7 µg/L 3.4% of the EPA limit 50 µg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2017 | 1/2 | SYR4 |
| Xylenes, Total | 0.6500 µg/L 0% of the EPA limit 10000 µg/L Highest in the ZIP: EPCOR - LAKE HAVASU · 4,788 people · 2019 | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.6000 pCi/L 4% of the EPA limit 15 pCi/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2014 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.4000 pCi/L 8% of the EPA limit 5 pCi/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2014 | 1/2 | SYR4 |
| Lead | 0.0031 mg/L 21% of the EPA limit 0.0150 mg/L Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2023 | 2/2 | LCR |
| PFBS | 0.0030 µg/L No EPA limit set Main supplier: LAKE HAVASU CITY OF · 54,610 people · 2025 | 1/2 | UCMR-5 |
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 86403
| Supplier | State | Population served |
|---|---|---|
| LAKE HAVASU CITY OF | AZ | 54,610 |
| EPCOR - LAKE HAVASU | AZ | 4,788 |
Frequently asked questions about ZIP 86403 tap water
Is the tap water in ZIP 86403 safe to drink?
EPA testing detected 18 contaminants across the water suppliers serving ZIP 86403. 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 86403?
2 public water suppliers report EPA drinking-water monitoring for ZIP 86403. Each is listed above with its population served.
What contaminants are in ZIP 86403's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, Lithium, and others across this ZIP's suppliers. The full list with levels and sources is above.