What was found in ZIP 55812
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 |
|---|---|---|---|
| Fluoride | 878 µg/L 22% of the EPA limit 4000 µg/L Main supplier: Duluth · 86,859 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 390 µg/L 3.9% of the EPA limit 10000 µg/L Main supplier: Duluth · 86,859 people · 2019 | 1/1 | SYR4 |
| Copper | 101.85 µg/L 7.8% of the EPA limit 1300 µg/L Main supplier: Duluth · 86,859 people · 2019 | 1/1 | SYR4 |
| Chloroform | 20 µg/L No EPA limit set Main supplier: Duluth · 86,859 people · 2019 | 1/1 | SYR4 |
| Lead | 17.9 µg/L 119% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: Duluth · 86,859 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 8.99 µg/L No EPA limit set Main supplier: Duluth · 86,859 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 6.6 µg/L No EPA limit set Main supplier: Duluth · 86,859 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 3.5 µg/L No EPA limit set Main supplier: Duluth · 86,859 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 0.6850 µg/L No EPA limit set Main supplier: Duluth · 86,859 people · 2019 | 1/1 | SYR4 |
| Chromium | 0.4065 µg/L 0.4% of the EPA limit 100 µg/L Main supplier: Duluth · 86,859 people · 2018 | 1/1 | SYR4 |
| Lead | 0.0080 mg/L 53% of the EPA limit 0.0150 mg/L Main supplier: Duluth · 86,859 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 55812
| Supplier | State | Population served |
|---|---|---|
| Duluth | MN | 86,859 |
Frequently asked questions about ZIP 55812 tap water
Is the tap water in ZIP 55812 safe to drink?
EPA testing detected 11 contaminants across the water suppliers serving ZIP 55812. 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 55812?
1 public water supplier report EPA drinking-water monitoring for ZIP 55812. Each is listed above with its population served.
What contaminants are in ZIP 55812's water?
EPA monitoring detected Fluoride, Nitrate-Nitrite, Copper, Chloroform, Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.