What was found in Waupun's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 3500 µg/L 35% of the EPA limit 10000 µg/L Highest in the city: MARSHVIEW TERRACE · 40 people · 2019 | 1/3 | SYR4 |
| Fluoride | 1250 µg/L 31% of the EPA limit 4000 µg/L Main supplier: WAUPUN UTILITIES · 8,056 people · 2019 | 2/3 | SYR4 |
| Copper | 184.95 µg/L 14% of the EPA limit 1300 µg/L Main supplier: WAUPUN UTILITIES · 8,056 people · 2017
Highest in the city: 1095 µg/L — WAUPUN CORRECTIONAL INST · 3,706 people · 2019 | 3/3 | SYR4 |
| Barium | 81.125 µg/L 4.1% of the EPA limit 2000 µg/L Main supplier: WAUPUN UTILITIES · 8,056 people · 2017
Highest in the city: 318.5 µg/L — WAUPUN CORRECTIONAL INST · 3,706 people · 2017 | 3/3 | SYR4 |
| Nitrate | 190 µg/L 1.9% of the EPA limit 10000 µg/L Main supplier: WAUPUN UTILITIES · 8,056 people · 2019 | 2/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 10.33 pCi/L 69% of the EPA limit 15 pCi/L Main supplier: WAUPUN UTILITIES · 8,056 people · 2019
Highest in the city: 36.76 pCi/L — MARSHVIEW TERRACE · 40 people · 2018 | 3/3 | SYR4 |
| TTHM | 7.042 µg/L 8.8% of the EPA limit 80 µg/L Main supplier: WAUPUN UTILITIES · 8,056 people · 2019
Highest in the city: 28.88 µg/L — WAUPUN CORRECTIONAL INST · 3,706 people · 2019 | 2/3 | SYR4 |
| Gross Beta Particle Activity | 2.7 pCi/L No EPA limit set Main supplier: WAUPUN UTILITIES · 8,056 people · 2014
Highest in the city: 17.05 pCi/L — MARSHVIEW TERRACE · 40 people · 2019 | 2/3 | SYR4 |
| Chloroform | 3.92 µg/L No EPA limit set Main supplier: WAUPUN UTILITIES · 8,056 people · 2019
Highest in the city: 16.775 µg/L — WAUPUN CORRECTIONAL INST · 3,706 people · 2019 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 6.08 pCi/L 122% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Main supplier: WAUPUN UTILITIES · 8,056 people · 2019
Highest in the city: 16.758 pCi/L — MARSHVIEW TERRACE · 40 people · 2019 | 3/3 | SYR4 |
| Lead | 9.18 µg/L 61% of the EPA limit 15 µg/L Main supplier: WAUPUN UTILITIES · 8,056 people · 2017
Highest in the city: 14.85 µg/L — WAUPUN CORRECTIONAL INST · 3,706 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 2 µg/L No EPA limit set Main supplier: WAUPUN UTILITIES · 8,056 people · 2019
Highest in the city: 7.31 µg/L — WAUPUN CORRECTIONAL INST · 3,706 people · 2019 | 2/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.607 µg/L 2.7% of the EPA limit 60 µg/L Main supplier: WAUPUN UTILITIES · 8,056 people · 2019
Highest in the city: 6.906 µg/L — WAUPUN CORRECTIONAL INST · 3,706 people · 2019 | 2/3 | SYR4 |
| Dichloroacetic Acid | 0.8500 µg/L No EPA limit set Main supplier: WAUPUN UTILITIES · 8,056 people · 2019
Highest in the city: 3.48 µg/L — WAUPUN CORRECTIONAL INST · 3,706 people · 2019 | 2/3 | SYR4 |
| Dibromochloromethane | 1.4 µg/L No EPA limit set Main supplier: WAUPUN UTILITIES · 8,056 people · 2019
Highest in the city: 2.93 µg/L — WAUPUN CORRECTIONAL INST · 3,706 people · 2019 | 2/3 | SYR4 |
| Trichloroacetic Acid | 0.6720 µg/L No EPA limit set Main supplier: WAUPUN UTILITIES · 8,056 people · 2019
Highest in the city: 2.89 µg/L — WAUPUN CORRECTIONAL INST · 3,706 people · 2019 | 2/3 | SYR4 |
| Combined Uranium | 1.47467 µg/L 4.9% of the EPA limit 30 µg/L Highest in the city: MARSHVIEW TERRACE · 40 people · 2017 | 1/3 | SYR4 |
| Tetrachloroethylene | 1.395 µg/L 28% of the EPA limit 5 µg/L Main supplier: WAUPUN UTILITIES · 8,056 people · 2019 | 1/3 | SYR4 |
| Dibromoacetic Acid | 0.1690 µg/L No EPA limit set Main supplier: WAUPUN UTILITIES · 8,056 people · 2019
Highest in the city: 0.5200 µg/L — WAUPUN CORRECTIONAL INST · 3,706 people · 2019 | 2/3 | SYR4 |
| trans-1,2-Dichloroethylene | 0.4000 µg/L 0.4% of the EPA limit 100 µg/L Highest in the city: WAUPUN CORRECTIONAL INST · 3,706 people · 2019 | 1/3 | SYR4 |
| Monobromoacetic Acid | 0.3300 µg/L No EPA limit set Highest in the city: WAUPUN CORRECTIONAL INST · 3,706 people · 2019 | 1/3 | SYR4 |
| Lead | 0.0012 mg/L 8% of the EPA limit 0.0150 mg/L Main supplier: WAUPUN UTILITIES · 8,056 people · 2023 | 3/3 | 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.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Waupun
| Supplier | Population served |
|---|---|
| WAUPUN UTILITIES | 8,056 |
| WAUPUN CORRECTIONAL INST | 3,706 |
| MARSHVIEW TERRACE | 40 |
Frequently asked questions about Waupun tap water
Is Waupun tap water safe to drink?
EPA testing detected 22 contaminants in the water serving Waupun. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Waupun?
3 public water suppliers report drinking-water monitoring for Waupun, Wisconsin to the EPA. Each is listed above with its population served.
What contaminants are in Waupun's water?
The contaminants EPA monitoring detected in Waupun include Nitrate-Nitrite, Fluoride, Copper, Barium, Nitrate. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.