What was found in ZIP 53121
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 |
|---|---|---|---|
| Copper | 1100 µg/L 85% of the EPA limit 1300 µg/L Main supplier: ELKHORN WATERWORKS · 10,317 people · 2017 | 1/1 | SYR4 |
| Barium | 1069.5 µg/L 53% of the EPA limit 2000 µg/L Main supplier: ELKHORN WATERWORKS · 10,317 people · 2017 | 1/1 | SYR4 |
| Fluoride | 1066 µg/L 27% of the EPA limit 4000 µg/L Main supplier: ELKHORN WATERWORKS · 10,317 people · 2017 | 1/1 | SYR4 |
| Nitrate | 720 µg/L 7.2% of the EPA limit 10000 µg/L Main supplier: ELKHORN WATERWORKS · 10,317 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 94.7 µg/L 0.9% of the EPA limit 10000 µg/L Main supplier: ELKHORN WATERWORKS · 10,317 people · 2017 | 1/1 | SYR4 |
| Chloroform | 51.9 µg/L No EPA limit set Main supplier: ELKHORN WATERWORKS · 10,317 people · 2019 | 1/1 | SYR4 |
| Arsenic | 49.25 µg/L 493% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: ELKHORN WATERWORKS · 10,317 people · 2019 | 1/1 | SYR4 |
| TTHM | 41.106 µg/L 51% of the EPA limit 80 µg/L Main supplier: ELKHORN WATERWORKS · 10,317 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 18.069 µg/L 30% of the EPA limit 60 µg/L Main supplier: ELKHORN WATERWORKS · 10,317 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 10.195 pCi/L 68% of the EPA limit 15 pCi/L Main supplier: ELKHORN WATERWORKS · 10,317 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 9.85 µg/L No EPA limit set Main supplier: ELKHORN WATERWORKS · 10,317 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 9.6725 pCi/L 193% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Main supplier: ELKHORN WATERWORKS · 10,317 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 8.37 µg/L No EPA limit set Main supplier: ELKHORN WATERWORKS · 10,317 people · 2019 | 1/1 | SYR4 |
| Lead | 7.71 µg/L 51% of the EPA limit 15 µg/L Main supplier: ELKHORN WATERWORKS · 10,317 people · 2017 | 1/1 | SYR4 |
| Bromodichloromethane | 5.36 µg/L No EPA limit set Main supplier: ELKHORN WATERWORKS · 10,317 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 1.773 µg/L No EPA limit set Main supplier: ELKHORN WATERWORKS · 10,317 people · 2019 | 1/1 | SYR4 |
| Dichloromethane | 1.2 µg/L 24% of the EPA limit 5 µg/L Main supplier: ELKHORN WATERWORKS · 10,317 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 0.2507 µg/L 0.8% of the EPA limit 30 µg/L Main supplier: ELKHORN WATERWORKS · 10,317 people · 2017 | 1/1 | SYR4 |
| Dibromoacetic Acid | 0.1600 µg/L No EPA limit set Main supplier: ELKHORN WATERWORKS · 10,317 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0140 mg/L 93% of the EPA limit 0.0150 mg/L Main supplier: ELKHORN WATERWORKS · 10,317 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 53121
| Supplier | State | Population served |
|---|---|---|
| ELKHORN WATERWORKS | WI | 10,317 |
Frequently asked questions about ZIP 53121 tap water
Is the tap water in ZIP 53121 safe to drink?
EPA testing detected 20 contaminants across the water suppliers serving ZIP 53121. 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 53121?
1 public water supplier report EPA drinking-water monitoring for ZIP 53121. Each is listed above with its population served.
What contaminants are in ZIP 53121's water?
EPA monitoring detected Copper, Barium, Fluoride, Nitrate, Nitrate-Nitrite, and others across this ZIP's suppliers. The full list with levels and sources is above.