What was found in Montezuma'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 | 2900 µg/L 29% of the EPA limit 10000 µg/L Highest in the city: MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2019 | 1/2 | SYR4 |
| Fluoride | 800 µg/L 20% of the EPA limit 4000 µg/L Highest in the city: MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2019 | 1/2 | SYR4 |
| Chlorite | 715 µg/L 72% of the EPA limit 1000 µg/L Highest in the city: MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2019 | 1/2 | SYR4 |
| TTHM | 46.87 µg/L 59% of the EPA limit 80 µg/L Main supplier: PONDEROSA UTILITIES INC. · 1,750 people · 2019
Highest in the city: 86.3 µg/L — MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2019 | 2/2 | SYR4 |
| Chloroform | 36.915 µg/L No EPA limit set Main supplier: PONDEROSA UTILITIES INC. · 1,750 people · 2019
Highest in the city: 68.98 µg/L — MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 46.78 µg/L 78% of the EPA limit 60 µg/L Main supplier: PONDEROSA UTILITIES INC. · 1,750 people · 2019
Highest in the city: 58.12 µg/L — MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2019 | 2/2 | SYR4 |
| Barium | 53.7 µg/L 2.7% of the EPA limit 2000 µg/L Highest in the city: MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2013 | 1/2 | SYR4 |
| Copper | 25.575 µg/L 2% of the EPA limit 1300 µg/L Main supplier: PONDEROSA UTILITIES INC. · 1,750 people · 2018
Highest in the city: 32.4 µg/L — MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2017 | 2/2 | SYR4 |
| Dichloroacetic Acid | 26.29 µg/L No EPA limit set Main supplier: PONDEROSA UTILITIES INC. · 1,750 people · 2019
Highest in the city: 29.395 µg/L — MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 14.71 µg/L No EPA limit set Main supplier: PONDEROSA UTILITIES INC. · 1,750 people · 2019
Highest in the city: 17.28 µg/L — MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 14.575 µg/L No EPA limit set Main supplier: PONDEROSA UTILITIES INC. · 1,750 people · 2019
Highest in the city: 15.845 µg/L — MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 10.3775 µg/L No EPA limit set Main supplier: PONDEROSA UTILITIES INC. · 1,750 people · 2019
Highest in the city: 13.4 µg/L — MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2019 | 2/2 | SYR4 |
| Lead | 8.12 µg/L 54% of the EPA limit 15 µg/L Main supplier: PONDEROSA UTILITIES INC. · 1,750 people · 2018 | 2/2 | SYR4 |
| Monobromoacetic Acid | 1.878 µg/L No EPA limit set Main supplier: PONDEROSA UTILITIES INC. · 1,750 people · 2019
Highest in the city: 4.9975 µg/L — MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 3.81 µg/L No EPA limit set Main supplier: PONDEROSA UTILITIES INC. · 1,750 people · 2019
Highest in the city: 4.454 µg/L — MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 2.9615 µg/L No EPA limit set Main supplier: PONDEROSA UTILITIES INC. · 1,750 people · 2019
Highest in the city: 3.097 µg/L — MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2019 | 2/2 | SYR4 |
| Bromoform | 0.5800 µg/L No EPA limit set Main supplier: PONDEROSA UTILITIES INC. · 1,750 people · 2019
Highest in the city: 0.5990 µg/L — MONTEZUMA MUNI WATER SUPPLY · 1,545 people · 2019 | 2/2 | SYR4 |
| Lead | 0.0058 mg/L 39% of the EPA limit 0.0150 mg/L Main supplier: PONDEROSA UTILITIES INC. · 1,750 people · 2024 | 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 Montezuma
| Supplier | Population served |
|---|---|
| PONDEROSA UTILITIES INC. | 1,750 |
| MONTEZUMA MUNI WATER SUPPLY | 1,545 |
Frequently asked questions about Montezuma tap water
Is Montezuma tap water safe to drink?
EPA testing detected 18 contaminants in the water serving Montezuma. 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 Montezuma?
2 public water suppliers report drinking-water monitoring for Montezuma, Iowa to the EPA. Each is listed above with its population served.
What contaminants are in Montezuma's water?
The contaminants EPA monitoring detected in Montezuma include Nitrate, Fluoride, Chlorite, TTHM, Chloroform. 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.