What was found in Menasha'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 | 966 µg/L 9.7% of the EPA limit 10000 µg/L Main supplier: APPLETON WATERWORKS · 74,511 people · 2019 | 2/3 | SYR4 |
| Fluoride | 778.5 µg/L 19% of the EPA limit 4000 µg/L Main supplier: APPLETON WATERWORKS · 74,511 people · 2019
Highest in the city: 890 µg/L — MENASHA ELEC & WATER UTIL · 15,144 people · 2019 | 2/3 | SYR4 |
| Nitrate | 710 µg/L 7.1% of the EPA limit 10000 µg/L Main supplier: APPLETON WATERWORKS · 74,511 people · 2019 | 1/3 | SYR4 |
| Copper | 137 µg/L 11% of the EPA limit 1300 µg/L Main supplier: APPLETON WATERWORKS · 74,511 people · 2017
Highest in the city: 190 µg/L — MENASHA ELEC & WATER UTIL · 15,144 people · 2018 | 3/3 | SYR4 |
| TTHM | 51.37 µg/L 64% of the EPA limit 80 µg/L Main supplier: APPLETON WATERWORKS · 74,511 people · 2019 | 3/3 | SYR4 |
| Chloroform | 45.75 µg/L No EPA limit set Main supplier: APPLETON WATERWORKS · 74,511 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 24.985 µg/L 42% of the EPA limit 60 µg/L Main supplier: APPLETON WATERWORKS · 74,511 people · 2019
Highest in the city: 32.21 µg/L — MENASHA ELEC & WATER UTIL · 15,144 people · 2019 | 3/3 | SYR4 |
| Lead | 8.5 µg/L 57% of the EPA limit 15 µg/L Main supplier: APPLETON WATERWORKS · 74,511 people · 2017
Highest in the city: 24.2 µg/L — MENASHA ELEC & WATER UTIL · 15,144 people · 2018 | 2/3 | SYR4 |
| Barium | 5.775 µg/L 0.3% of the EPA limit 2000 µg/L Main supplier: APPLETON WATERWORKS · 74,511 people · 2019
Highest in the city: 19.6 µg/L — MENASHA ELEC & WATER UTIL · 15,144 people · 2019 | 2/3 | SYR4 |
| Dichloroacetic Acid | 17 µg/L No EPA limit set Main supplier: APPLETON WATERWORKS · 74,511 people · 2019
Highest in the city: 19 µg/L — MENASHA ELEC & WATER UTIL · 15,144 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 9.285 µg/L No EPA limit set Main supplier: APPLETON WATERWORKS · 74,511 people · 2019
Highest in the city: 13 µg/L — MENASHA ELEC & WATER UTIL · 15,144 people · 2019 | 3/3 | SYR4 |
| Selenium | 6.8 µg/L 14% of the EPA limit 50 µg/L Highest in the city: MENASHA ELEC & WATER UTIL · 15,144 people · 2019 | 1/3 | SYR4 |
| Bromodichloromethane | 5.875 µg/L No EPA limit set Main supplier: APPLETON WATERWORKS · 74,511 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 2.175 µg/L No EPA limit set Main supplier: APPLETON WATERWORKS · 74,511 people · 2019
Highest in the city: 3.375 µg/L — MENASHA ELEC & WATER UTIL · 15,144 people · 2019 | 2/3 | SYR4 |
| Monobromoacetic Acid | 2.5 µg/L No EPA limit set Main supplier: APPLETON WATERWORKS · 74,511 people · 2019 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.4 pCi/L 28% of the EPA limit 5 pCi/L Main supplier: APPLETON WATERWORKS · 74,511 people · 2014
Highest in the city: 1.45 pCi/L — MENASHA ELEC & WATER UTIL · 15,144 people · 2014 | 2/3 | SYR4 |
| Dibromochloromethane | 0.8440 µg/L No EPA limit set Main supplier: APPLETON WATERWORKS · 74,511 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 0.3120 µg/L No EPA limit set Main supplier: APPLETON WATERWORKS · 74,511 people · 2019
Highest in the city: 0.3220 µg/L — MENASHA ELEC & WATER UTIL · 15,144 people · 2019 | 2/3 | SYR4 |
| Mercury | 0.2500 µg/L 13% of the EPA limit 2 µg/L Highest in the city: MENASHA ELEC & WATER UTIL · 15,144 people · 2019 | 1/3 | SYR4 |
| Lead | 0.0013 mg/L 8.7% of the EPA limit 0.0150 mg/L Main supplier: APPLETON WATERWORKS · 74,511 people · 2025 | 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 Menasha
| Supplier | Population served |
|---|---|
| APPLETON WATERWORKS | 74,511 |
| MENASHA ELEC & WATER UTIL | 15,144 |
| HARRISON UTILITIES - FKA WAVERLY SD | 5,500 |
Frequently asked questions about Menasha tap water
Is Menasha tap water safe to drink?
EPA testing detected 20 contaminants in the water serving Menasha. 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 Menasha?
3 public water suppliers report drinking-water monitoring for Menasha, Wisconsin to the EPA. Each is listed above with its population served.
What contaminants are in Menasha's water?
The contaminants EPA monitoring detected in Menasha include Nitrate-Nitrite, Fluoride, Nitrate, Copper, 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.