What was found in Trempealeau'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 |
|---|---|---|---|
| Copper | 190 µg/L 15% of the EPA limit 1300 µg/L Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2017 | 1/1 | SYR4 |
| Fluoride | 189 µg/L 4.7% of the EPA limit 4000 µg/L Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2017 | 1/1 | SYR4 |
| Nitrate | 172 µg/L 1.7% of the EPA limit 10000 µg/L Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2019 | 1/1 | SYR4 |
| Barium | 13.625 µg/L 0.7% of the EPA limit 2000 µg/L Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2017 | 1/1 | SYR4 |
| TTHM | 6.528 µg/L 8.2% of the EPA limit 80 µg/L Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2019 | 1/1 | SYR4 |
| Lead | 5.5025 µg/L 37% of the EPA limit 15 µg/L Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2017 | 1/1 | SYR4 |
| Chloroform | 4.386 µg/L No EPA limit set Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 3.82 pCi/L 76% of the EPA limit 5 pCi/L Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2017 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 3.6904 µg/L 6.2% of the EPA limit 60 µg/L Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 3.192 µg/L No EPA limit set Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.96 pCi/L 20% of the EPA limit 15 pCi/L Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2017 | 1/1 | SYR4 |
| Dibromochloromethane | 2.3406 µg/L No EPA limit set Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 2.157 µg/L No EPA limit set Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 1.5 µg/L No EPA limit set Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 1.0674 µg/L No EPA limit set Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2019 | 1/1 | SYR4 |
| Endrin | 0.1300 µg/L 6.5% of the EPA limit 2 µg/L Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2017 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: TREMPEALEAU WATERWORKS · 1,888 people · 2023 | 1/1 | LCR |
Water suppliers serving Trempealeau
| Supplier | Population served |
|---|---|
| TREMPEALEAU WATERWORKS | 1,888 |
Frequently asked questions about Trempealeau tap water
Is Trempealeau tap water safe to drink?
EPA testing detected 17 contaminants in the water serving Trempealeau. 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 Trempealeau?
1 public water supplier report drinking-water monitoring for Trempealeau, Wisconsin to the EPA. Each is listed above with its population served.
What contaminants are in Trempealeau's water?
The contaminants EPA monitoring detected in Trempealeau include Copper, Fluoride, Nitrate, Barium, TTHM. 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.