What was found in Sauk City'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 |
|---|---|---|---|
| Fluoride | 1190 µg/L 30% of the EPA limit 4000 µg/L Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2019 | 1/1 | SYR4 |
| Copper | 201 µg/L 15% of the EPA limit 1300 µg/L Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2017 | 1/1 | SYR4 |
| Nitrate | 140 µg/L 1.4% of the EPA limit 10000 µg/L Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2019 | 1/1 | SYR4 |
| Barium | 23.985 µg/L 1.2% of the EPA limit 2000 µg/L Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2017 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 14.7633 pCi/L 98% of the EPA limit 15 pCi/L Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2017 | 1/1 | SYR4 |
| TTHM | 13.3365 µg/L 17% of the EPA limit 80 µg/L Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2019 | 1/1 | SYR4 |
| Chloroform | 10.475 µg/L No EPA limit set Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 9.09 pCi/L No EPA limit set Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2014 | 1/1 | SYR4 |
| Lead | 5.4 µg/L 36% of the EPA limit 15 µg/L Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2017 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 3.7695 pCi/L 75% of the EPA limit 5 pCi/L Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2017 | 1/1 | SYR4 |
| Bromodichloromethane | 2.36 µg/L No EPA limit set Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 2.293 µg/L 3.8% of the EPA limit 60 µg/L Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 1.86 µg/L No EPA limit set Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 1.14 µg/L 3.8% of the EPA limit 30 µg/L Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2013 | 1/1 | SYR4 |
| Dibromochloromethane | 1.0815 µg/L No EPA limit set Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 0.9095 µg/L No EPA limit set Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 0.1400 µg/L No EPA limit set Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0064 mg/L 43% of the EPA limit 0.0150 mg/L Main supplier: SAUK CITY WATERWORKS · 3,518 people · 2023 | 1/1 | LCR |
Water suppliers serving Sauk City
| Supplier | Population served |
|---|---|
| SAUK CITY WATERWORKS | 3,518 |
Frequently asked questions about Sauk City tap water
Is Sauk City tap water safe to drink?
EPA testing detected 18 contaminants in the water serving Sauk City. 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 Sauk City?
1 public water supplier report drinking-water monitoring for Sauk City, Wisconsin to the EPA. Each is listed above with its population served.
What contaminants are in Sauk City's water?
The contaminants EPA monitoring detected in Sauk City include Fluoride, Copper, Nitrate, Barium, Gross Alpha, Excl. Radon And U. 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.