What was found in ZIP 55109
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 | 1435 µg/L 36% of the EPA limit 4000 µg/L Main supplier: North Saint Paul · 13,134 people · 2019 | 1/2 | SYR4 |
| Nitrate-Nitrite | 860 µg/L 8.6% of the EPA limit 10000 µg/L Main supplier: North Saint Paul · 13,134 people · 2019 | 1/2 | SYR4 |
| Copper | 187.5 µg/L 14% of the EPA limit 1300 µg/L Main supplier: North Saint Paul · 13,134 people · 2019 | 2/2 | SYR4 |
| Chloroform | 42.7 µg/L No EPA limit set Highest in the ZIP: Little Canada · 10,200 people · 2019 | 1/2 | SYR4 |
| Barium | 27.8 µg/L 1.4% of the EPA limit 2000 µg/L Main supplier: North Saint Paul · 13,134 people · 2012 | 1/2 | SYR4 |
| Dichloroacetic Acid | 21.95 µg/L No EPA limit set Highest in the ZIP: Little Canada · 10,200 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 12 µg/L No EPA limit set Highest in the ZIP: Little Canada · 10,200 people · 2019 | 1/2 | SYR4 |
| Lead | 9.85 µg/L 66% of the EPA limit 15 µg/L Main supplier: North Saint Paul · 13,134 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 8.8 µg/L No EPA limit set Highest in the ZIP: Little Canada · 10,200 people · 2019 | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 6.5 pCi/L 43% of the EPA limit 15 pCi/L Main supplier: North Saint Paul · 13,134 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 3.82 µg/L No EPA limit set Highest in the ZIP: Little Canada · 10,200 people · 2019 | 1/2 | SYR4 |
| Arsenic | 1.69 µg/L 17% of the EPA limit 10 µg/L Main supplier: North Saint Paul · 13,134 people · 2012 | 1/2 | SYR4 |
| Dibromochloromethane | 1.08 µg/L No EPA limit set Highest in the ZIP: Little Canada · 10,200 people · 2019 | 1/2 | SYR4 |
| Chromium | 0.3470 µg/L 0.3% of the EPA limit 100 µg/L Main supplier: North Saint Paul · 13,134 people · 2015 | 1/2 | SYR4 |
| Pfba | 0.0851 µg/L No EPA limit set Main supplier: North Saint Paul · 13,134 people · 2023 | 2/2 | UCMR-5 |
| PFOS | 0.0042 µg/L No EPA limit set Main supplier: North Saint Paul · 13,134 people · 2023 | 1/2 | UCMR-5 |
| PFHXS | 0.0034 µg/L No EPA limit set Main supplier: North Saint Paul · 13,134 people · 2023 | 1/2 | UCMR-5 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: North Saint Paul · 13,134 people · 2025 | 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 55109
| Supplier | State | Population served |
|---|---|---|
| North Saint Paul | MN | 13,134 |
| Little Canada | MN | 10,200 |
Frequently asked questions about ZIP 55109 tap water
Is the tap water in ZIP 55109 safe to drink?
EPA testing detected 18 contaminants across the water suppliers serving ZIP 55109. 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 55109?
2 public water suppliers report EPA drinking-water monitoring for ZIP 55109. Each is listed above with its population served.
What contaminants are in ZIP 55109's water?
EPA monitoring detected Fluoride, Nitrate-Nitrite, Copper, Chloroform, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.