What was found in Horicon'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 | 4485 µg/L 45% of the EPA limit 10000 µg/L Highest in the city: BREEZY POINT MHP 2 · 51 people · 2019 | 2/3 | SYR4 |
| Nitrate | 196 µg/L 2% of the EPA limit 10000 µg/L Main supplier: HORICON WATERWORKS · 3,682 people · 2019
Highest in the city: 4400 µg/L — BREEZY POINT MHP 1 · 30 people · 2015 | 3/3 | SYR4 |
| Fluoride | 842.9 µg/L 21% of the EPA limit 4000 µg/L Main supplier: HORICON WATERWORKS · 3,682 people · 2019 | 2/3 | SYR4 |
| Copper | 562 µg/L 43% of the EPA limit 1300 µg/L Main supplier: HORICON WATERWORKS · 3,682 people · 2017 | 3/3 | SYR4 |
| Barium | 108.5 µg/L 5.4% of the EPA limit 2000 µg/L Main supplier: HORICON WATERWORKS · 3,682 people · 2017 | 3/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 11.828 pCi/L 79% of the EPA limit 15 pCi/L Main supplier: HORICON WATERWORKS · 3,682 people · 2017
Highest in the city: 14.767 pCi/L — BREEZY POINT MHP 1 · 30 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 14.197 µg/L No EPA limit set Main supplier: HORICON WATERWORKS · 3,682 people · 2019 | 1/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 10.6895 µg/L 18% of the EPA limit 60 µg/L Main supplier: HORICON WATERWORKS · 3,682 people · 2019 | 1/3 | SYR4 |
| Lead | 9.5655 µg/L 64% of the EPA limit 15 µg/L Main supplier: HORICON WATERWORKS · 3,682 people · 2017 | 3/3 | SYR4 |
| Gross Beta Particle Activity | 9.226 pCi/L No EPA limit set Highest in the city: BREEZY POINT MHP 1 · 30 people · 2017 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 6.15 pCi/L 123% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Main supplier: HORICON WATERWORKS · 3,682 people · 2019 | 3/3 | SYR4 |
| TTHM | 4.8139 µg/L 6% of the EPA limit 80 µg/L Main supplier: HORICON WATERWORKS · 3,682 people · 2019 | 1/3 | SYR4 |
| Chloroform | 2.584 µg/L No EPA limit set Main supplier: HORICON WATERWORKS · 3,682 people · 2019 | 1/3 | SYR4 |
| Dibromochloromethane | 1.7148 µg/L No EPA limit set Main supplier: HORICON WATERWORKS · 3,682 people · 2019 | 1/3 | SYR4 |
| Bromodichloromethane | 1.3985 µg/L No EPA limit set Main supplier: HORICON WATERWORKS · 3,682 people · 2019 | 1/3 | SYR4 |
| Combined Uranium | 0.4220 µg/L 1.4% of the EPA limit 30 µg/L Main supplier: HORICON WATERWORKS · 3,682 people · 2014
Highest in the city: 1.22053 µg/L — BREEZY POINT MHP 1 · 30 people · 2015 | 2/3 | SYR4 |
| Dichloroacetic Acid | 0.6330 µg/L No EPA limit set Main supplier: HORICON WATERWORKS · 3,682 people · 2019 | 1/3 | SYR4 |
| Dibromoacetic Acid | 0.3800 µg/L No EPA limit set Main supplier: HORICON WATERWORKS · 3,682 people · 2019 | 1/3 | SYR4 |
| Xylenes, Total | 0.2634 µg/L 0% of the EPA limit 10000 µg/L Main supplier: HORICON WATERWORKS · 3,682 people · 2017 | 1/3 | SYR4 |
| Lead | 0.0032 mg/L 21% of the EPA limit 0.0150 mg/L Main supplier: HORICON WATERWORKS · 3,682 people · 2023 | 3/3 | LCR |
Water suppliers serving Horicon
| Supplier | Population served |
|---|---|
| HORICON WATERWORKS | 3,682 |
| BREEZY POINT MHP 2 | 51 |
| BREEZY POINT MHP 1 | 30 |
Frequently asked questions about Horicon tap water
Is Horicon tap water safe to drink?
EPA testing detected 20 contaminants in the water serving Horicon. 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 Horicon?
3 public water suppliers report drinking-water monitoring for Horicon, Wisconsin to the EPA. Each is listed above with its population served.
What contaminants are in Horicon's water?
The contaminants EPA monitoring detected in Horicon include Nitrate-Nitrite, Nitrate, Fluoride, Copper, Barium. 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.