What was found in ZIP 55128
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-Nitrite | 2600 µg/L 26% of the EPA limit 10000 µg/L Main supplier: Oakdale · 30,144 people · 2019 | 1/1 | SYR4 |
| Fluoride | 1445 µg/L 36% of the EPA limit 4000 µg/L Main supplier: Oakdale · 30,144 people · 2019 | 1/1 | SYR4 |
| Copper | 128.5 µg/L 9.9% of the EPA limit 1300 µg/L Main supplier: Oakdale · 30,144 people · 2019 | 1/1 | SYR4 |
| Barium | 64.53 µg/L 3.2% of the EPA limit 2000 µg/L Main supplier: Oakdale · 30,144 people · 2018 | 1/1 | SYR4 |
| Chloroform | 5.725 µg/L No EPA limit set Main supplier: Oakdale · 30,144 people · 2019 | 1/1 | SYR4 |
| Lead | 4.49 µg/L 30% of the EPA limit 15 µg/L Main supplier: Oakdale · 30,144 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 3.97 µg/L No EPA limit set Main supplier: Oakdale · 30,144 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3.5 pCi/L 23% of the EPA limit 15 pCi/L Main supplier: Oakdale · 30,144 people · 2016 | 1/1 | SYR4 |
| Bromodichloromethane | 2.1 µg/L No EPA limit set Main supplier: Oakdale · 30,144 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 1.6 µg/L No EPA limit set Main supplier: Oakdale · 30,144 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 1.48 µg/L No EPA limit set Main supplier: Oakdale · 30,144 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.3 µg/L No EPA limit set Main supplier: Oakdale · 30,144 people · 2019 | 1/1 | SYR4 |
| Pfba | 1.27 µg/L No EPA limit set Main supplier: Oakdale · 30,144 people · 2025 | 1/1 | UCMR-5 |
| Arsenic | 1.14 µg/L 11% of the EPA limit 10 µg/L Main supplier: Oakdale · 30,144 people · 2018 | 1/1 | SYR4 |
| Chromium | 1.1155 µg/L 1.1% of the EPA limit 100 µg/L Main supplier: Oakdale · 30,144 people · 2018 | 1/1 | SYR4 |
| Bromoform | 0.6800 µg/L No EPA limit set Main supplier: Oakdale · 30,144 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: Oakdale · 30,144 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 55128
| Supplier | State | Population served |
|---|---|---|
| Oakdale | MN | 30,144 |
Frequently asked questions about ZIP 55128 tap water
Is the tap water in ZIP 55128 safe to drink?
EPA testing detected 17 contaminants across the water suppliers serving ZIP 55128. 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 55128?
1 public water supplier report EPA drinking-water monitoring for ZIP 55128. Each is listed above with its population served.
What contaminants are in ZIP 55128's water?
EPA monitoring detected Nitrate-Nitrite, Fluoride, Copper, Barium, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.