What was found in ZIP 53901
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 | 1140.5 µg/L 29% of the EPA limit 4000 µg/L Main supplier: PORTAGE WATERWORKS · 10,437 people · 2019 | 1/1 | SYR4 |
| Nitrate | 840 µg/L 8.4% of the EPA limit 10000 µg/L Main supplier: PORTAGE WATERWORKS · 10,437 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 767.5 µg/L 7.7% of the EPA limit 10000 µg/L Main supplier: PORTAGE WATERWORKS · 10,437 people · 2017 | 1/1 | SYR4 |
| Copper | 392.3 µg/L 30% of the EPA limit 1300 µg/L Main supplier: PORTAGE WATERWORKS · 10,437 people · 2017 | 1/1 | SYR4 |
| Lead | 27.05 µg/L 180% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: PORTAGE WATERWORKS · 10,437 people · 2017 | 1/1 | SYR4 |
| TTHM | 17.299 µg/L 22% of the EPA limit 80 µg/L Main supplier: PORTAGE WATERWORKS · 10,437 people · 2019 | 1/1 | SYR4 |
| Barium | 16.05 µg/L 0.8% of the EPA limit 2000 µg/L Main supplier: PORTAGE WATERWORKS · 10,437 people · 2017 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 5.7225 µg/L 9.5% of the EPA limit 60 µg/L Main supplier: PORTAGE WATERWORKS · 10,437 people · 2019 | 1/1 | SYR4 |
| Chloroform | 5.69 µg/L No EPA limit set Main supplier: PORTAGE WATERWORKS · 10,437 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 5.5 µg/L No EPA limit set Main supplier: PORTAGE WATERWORKS · 10,437 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 5 µg/L No EPA limit set Main supplier: PORTAGE WATERWORKS · 10,437 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 3.36 µg/L No EPA limit set Main supplier: PORTAGE WATERWORKS · 10,437 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.39 µg/L No EPA limit set Main supplier: PORTAGE WATERWORKS · 10,437 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 1.33 µg/L No EPA limit set Main supplier: PORTAGE WATERWORKS · 10,437 people · 2019 | 1/1 | SYR4 |
| PFHXS | 0.0081 µg/L No EPA limit set Main supplier: PORTAGE WATERWORKS · 10,437 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0062 mg/L 41% of the EPA limit 0.0150 mg/L Main supplier: PORTAGE WATERWORKS · 10,437 people · 2023 | 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 53901
| Supplier | State | Population served |
|---|---|---|
| PORTAGE WATERWORKS | WI | 10,437 |
Frequently asked questions about ZIP 53901 tap water
Is the tap water in ZIP 53901 safe to drink?
EPA testing detected 16 contaminants across the water suppliers serving ZIP 53901. 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 53901?
1 public water supplier report EPA drinking-water monitoring for ZIP 53901. Each is listed above with its population served.
What contaminants are in ZIP 53901's water?
EPA monitoring detected Fluoride, Nitrate, Nitrate-Nitrite, Copper, Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.