What was found in Menomonee Falls'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 | 1060 µg/L 27% of the EPA limit 4000 µg/L Highest in the city: MENOMONEE FALLS WW - GROUNDWATER · 1,796 people · 2019 | 1/2 | SYR4 |
| Copper | 142.9 µg/L 11% of the EPA limit 1300 µg/L Main supplier: MENOMONEE FALLS WW - SURFACE WATER · 23,867 people · 2017
Highest in the city: 738 µg/L — MENOMONEE FALLS WW - GROUNDWATER · 1,796 people · 2017 | 2/2 | SYR4 |
| Toluene | 63.545 µg/L 6.4% of the EPA limit 1000 µg/L Highest in the city: MENOMONEE FALLS WW - GROUNDWATER · 1,796 people · 2019 | 1/2 | SYR4 |
| Barium | 63.2 µg/L 3.2% of the EPA limit 2000 µg/L Highest in the city: MENOMONEE FALLS WW - GROUNDWATER · 1,796 people · 2017 | 1/2 | SYR4 |
| TTHM | 14.6235 µg/L 18% of the EPA limit 80 µg/L Main supplier: MENOMONEE FALLS WW - SURFACE WATER · 23,867 people · 2019
Highest in the city: 15.11 µg/L — MENOMONEE FALLS WW - GROUNDWATER · 1,796 people · 2019 | 2/2 | SYR4 |
| Chloroform | 6.825 µg/L No EPA limit set Main supplier: MENOMONEE FALLS WW - SURFACE WATER · 23,867 people · 2019
Highest in the city: 7.08 µg/L — MENOMONEE FALLS WW - GROUNDWATER · 1,796 people · 2019 | 2/2 | SYR4 |
| Lead | 6.75 µg/L 45% of the EPA limit 15 µg/L Main supplier: MENOMONEE FALLS WW - SURFACE WATER · 23,867 people · 2017 | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 5.95533 pCi/L 40% of the EPA limit 15 pCi/L Highest in the city: MENOMONEE FALLS WW - GROUNDWATER · 1,796 people · 2017 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 5.72 µg/L 9.5% of the EPA limit 60 µg/L Main supplier: MENOMONEE FALLS WW - SURFACE WATER · 23,867 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 5.64 µg/L No EPA limit set Main supplier: MENOMONEE FALLS WW - SURFACE WATER · 23,867 people · 2019 | 2/2 | SYR4 |
| Arsenic | 4.6 µg/L 46% of the EPA limit 10 µg/L Highest in the city: MENOMONEE FALLS WW - GROUNDWATER · 1,796 people · 2017 | 1/2 | SYR4 |
| Dibromochloromethane | 3.42 µg/L No EPA limit set Main supplier: MENOMONEE FALLS WW - SURFACE WATER · 23,867 people · 2019
Highest in the city: 3.49 µg/L — MENOMONEE FALLS WW - GROUNDWATER · 1,796 people · 2019 | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 2.88 pCi/L 58% of the EPA limit 5 pCi/L Highest in the city: MENOMONEE FALLS WW - GROUNDWATER · 1,796 people · 2017 | 1/2 | SYR4 |
| Dichloroacetic Acid | 2.6 µg/L No EPA limit set Main supplier: MENOMONEE FALLS WW - SURFACE WATER · 23,867 people · 2019 | 2/2 | SYR4 |
| Combined Uranium | 1.91 µg/L 6.4% of the EPA limit 30 µg/L Highest in the city: MENOMONEE FALLS WW - GROUNDWATER · 1,796 people · 2017 | 1/2 | SYR4 |
| Trichloroacetic Acid | 1.8 µg/L No EPA limit set Main supplier: MENOMONEE FALLS WW - SURFACE WATER · 23,867 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 1.1 µg/L No EPA limit set Main supplier: MENOMONEE FALLS WW - SURFACE WATER · 23,867 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 0.7745 µg/L No EPA limit set Main supplier: MENOMONEE FALLS WW - SURFACE WATER · 23,867 people · 2019 | 1/2 | SYR4 |
| Bromoform | 0.2600 µg/L No EPA limit set Main supplier: MENOMONEE FALLS WW - SURFACE WATER · 23,867 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0021 mg/L 14% of the EPA limit 0.0150 mg/L Main supplier: MENOMONEE FALLS WW - SURFACE WATER · 23,867 people · 2023 | 2/2 | 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 Menomonee Falls
| Supplier | Population served |
|---|---|
| MENOMONEE FALLS WW - SURFACE WATER | 23,867 |
| MENOMONEE FALLS WW - GROUNDWATER | 1,796 |
Frequently asked questions about Menomonee Falls tap water
Is Menomonee Falls tap water safe to drink?
EPA testing detected 20 contaminants in the water serving Menomonee Falls. 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 Menomonee Falls?
2 public water suppliers report drinking-water monitoring for Menomonee Falls, Wisconsin to the EPA. Each is listed above with its population served.
What contaminants are in Menomonee Falls's water?
The contaminants EPA monitoring detected in Menomonee Falls include Fluoride, Copper, Toluene, 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.