What was found in Neillsville'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 | 2040 µg/L 20% of the EPA limit 10000 µg/L Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2019
Highest in the city: 7100 µg/L — GRANDVIEW MOBILE HOME COURT · 42 people · 2019 | 3/3 | SYR4 |
| Nitrate-Nitrite | 903.35 µg/L 9% of the EPA limit 10000 µg/L Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2017
Highest in the city: 6000 µg/L — GRANDVIEW MOBILE HOME COURT · 42 people · 2018 | 2/3 | SYR4 |
| Fluoride | 1104 µg/L 28% of the EPA limit 4000 µg/L Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2019 | 2/3 | SYR4 |
| Copper | 332.2 µg/L 26% of the EPA limit 1300 µg/L Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2017
Highest in the city: 338 µg/L — PINE ISLAND ESTATES · 75 people · 2019 | 3/3 | SYR4 |
| Barium | 30.121 µg/L 1.5% of the EPA limit 2000 µg/L Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2017
Highest in the city: 49.7 µg/L — PINE ISLAND ESTATES · 75 people · 2018 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 41.944 µg/L 70% of the EPA limit 60 µg/L Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2019 | 2/3 | SYR4 |
| TTHM | 39.076 µg/L 49% of the EPA limit 80 µg/L Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2019 | 2/3 | SYR4 |
| Chloroform | 25.52 µg/L No EPA limit set Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2019 | 1/3 | SYR4 |
| Monochloroacetic Acid | 20.94 µg/L No EPA limit set Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2019 | 1/3 | SYR4 |
| Dichloroacetic Acid | 13.5 µg/L No EPA limit set Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2019 | 2/3 | SYR4 |
| Bromodichloromethane | 12.56 µg/L No EPA limit set Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2019 | 2/3 | SYR4 |
| Dibromochloromethane | 10.502 µg/L No EPA limit set Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2019 | 2/3 | SYR4 |
| Lead | 5.595 µg/L 37% of the EPA limit 15 µg/L Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2017
Highest in the city: 7.43 µg/L — PINE ISLAND ESTATES · 75 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 6.018 µg/L No EPA limit set Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2019 | 1/3 | SYR4 |
| Bromoform | 3.05 µg/L No EPA limit set Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2019 | 1/3 | SYR4 |
| Chromium | 2.7 µg/L 2.7% of the EPA limit 100 µg/L Highest in the city: GRANDVIEW MOBILE HOME COURT · 42 people · 2018 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 2.02 pCi/L 40% of the EPA limit 5 pCi/L Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2014 | 3/3 | SYR4 |
| Dibromoacetic Acid | 1.8485 µg/L No EPA limit set Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2019 | 2/3 | SYR4 |
| Monobromoacetic Acid | 1.8045 µg/L No EPA limit set Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2019 | 1/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.6 pCi/L 11% of the EPA limit 15 pCi/L Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2014 | 2/3 | SYR4 |
| Toluene | 0.5200 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the city: GRANDVIEW MOBILE HOME COURT · 42 people · 2018 | 1/3 | SYR4 |
| Lead | 0.0011 mg/L 7.7% of the EPA limit 0.0150 mg/L Main supplier: NEILLSVILLE WATERWORKS · 2,384 people · 2023
Highest in the city: 0.0059 mg/L — GRANDVIEW MOBILE HOME COURT · 42 people · 2024 | 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 Neillsville
| Supplier | Population served |
|---|---|
| NEILLSVILLE WATERWORKS | 2,384 |
| PINE ISLAND ESTATES | 75 |
| GRANDVIEW MOBILE HOME COURT | 42 |
Frequently asked questions about Neillsville tap water
Is Neillsville tap water safe to drink?
EPA testing detected 22 contaminants in the water serving Neillsville. 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 Neillsville?
3 public water suppliers report drinking-water monitoring for Neillsville, Wisconsin to the EPA. Each is listed above with its population served.
What contaminants are in Neillsville's water?
The contaminants EPA monitoring detected in Neillsville include Nitrate, Nitrate-Nitrite, 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.