What was found in ZIP 54923
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 | 4075 µg/L 41% of the EPA limit 10000 µg/L Main supplier: BERLIN WATERWORKS · 5,524 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 2510 µg/L 25% of the EPA limit 10000 µg/L Main supplier: BERLIN WATERWORKS · 5,524 people · 2017 | 1/1 | SYR4 |
| Fluoride | 1299 µg/L 32% of the EPA limit 4000 µg/L Main supplier: BERLIN WATERWORKS · 5,524 people · 2019 | 1/1 | SYR4 |
| Copper | 681.5 µg/L 52% of the EPA limit 1300 µg/L Main supplier: BERLIN WATERWORKS · 5,524 people · 2017 | 1/1 | SYR4 |
| Barium | 64.5 µg/L 3.2% of the EPA limit 2000 µg/L Main supplier: BERLIN WATERWORKS · 5,524 people · 2017 | 1/1 | SYR4 |
| TTHM | 19.195 µg/L 24% of the EPA limit 80 µg/L Main supplier: BERLIN WATERWORKS · 5,524 people · 2019 | 1/1 | SYR4 |
| Lead | 16.35 µg/L 109% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: BERLIN WATERWORKS · 5,524 people · 2017 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 12.33 pCi/L 82% of the EPA limit 15 pCi/L Main supplier: BERLIN WATERWORKS · 5,524 people · 2019 | 1/1 | SYR4 |
| Chloroform | 6.265 µg/L No EPA limit set Main supplier: BERLIN WATERWORKS · 5,524 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 6.15 µg/L No EPA limit set Main supplier: BERLIN WATERWORKS · 5,524 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 5.7 pCi/L 114% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Main supplier: BERLIN WATERWORKS · 5,524 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 4.518 pCi/L No EPA limit set Main supplier: BERLIN WATERWORKS · 5,524 people · 2013 | 1/1 | SYR4 |
| Dibromochloromethane | 4.45 µg/L No EPA limit set Main supplier: BERLIN WATERWORKS · 5,524 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 3.1275 µg/L 5.2% of the EPA limit 60 µg/L Main supplier: BERLIN WATERWORKS · 5,524 people · 2019 | 1/1 | SYR4 |
| Chromium | 1.38 µg/L 1.4% of the EPA limit 100 µg/L Main supplier: BERLIN WATERWORKS · 5,524 people · 2017 | 1/1 | SYR4 |
| Bromoform | 1.265 µg/L No EPA limit set Main supplier: BERLIN WATERWORKS · 5,524 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 1.204 µg/L No EPA limit set Main supplier: BERLIN WATERWORKS · 5,524 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.075 µg/L No EPA limit set Main supplier: BERLIN WATERWORKS · 5,524 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 0.9986 µg/L 3.3% of the EPA limit 30 µg/L Main supplier: BERLIN WATERWORKS · 5,524 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 0.4960 µg/L No EPA limit set Main supplier: BERLIN WATERWORKS · 5,524 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 0.3700 µg/L No EPA limit set Main supplier: BERLIN WATERWORKS · 5,524 people · 2019 | 1/1 | SYR4 |
| Thallium, Total | 0.2480 µg/L 12% of the EPA limit 2 µg/L Main supplier: BERLIN WATERWORKS · 5,524 people · 2017 | 1/1 | SYR4 |
| Lead | 0.00055 mg/L 3.7% of the EPA limit 0.0150 mg/L Main supplier: BERLIN WATERWORKS · 5,524 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 54923
| Supplier | State | Population served |
|---|---|---|
| BERLIN WATERWORKS | WI | 5,524 |
Frequently asked questions about ZIP 54923 tap water
Is the tap water in ZIP 54923 safe to drink?
EPA testing detected 23 contaminants across the water suppliers serving ZIP 54923. 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 54923?
1 public water supplier report EPA drinking-water monitoring for ZIP 54923. Each is listed above with its population served.
What contaminants are in ZIP 54923's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.