What was found in Osage'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 | 9600 µg/L 96% of the EPA limit 10000 µg/L Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2019 | 1/1 | SYR4 |
| Copper | 541.3 µg/L 42% of the EPA limit 1300 µg/L Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2018 | 1/1 | SYR4 |
| Lead | 19.32 µg/L 129% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2018 | 1/1 | SYR4 |
| TTHM | 18.425 µg/L 23% of the EPA limit 80 µg/L Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 15.25 µg/L 25% of the EPA limit 60 µg/L Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 8.156 µg/L No EPA limit set Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2019 | 1/1 | SYR4 |
| Chloroform | 7.452 µg/L No EPA limit set Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 6.0375 µg/L No EPA limit set Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 4.426 µg/L No EPA limit set Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 4.27 µg/L No EPA limit set Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2019 | 1/1 | SYR4 |
| Bromoform | 2.814 µg/L No EPA limit set Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.3025 µg/L No EPA limit set Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 1.2625 µg/L No EPA limit set Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0114 mg/L 76% of the EPA limit 0.0150 mg/L Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2024 | 1/1 | LCR |
| PFHXS | 0.0043 µg/L No EPA limit set Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2024 | 1/1 | UCMR-5 |
| PFOS | 0.0042 µg/L No EPA limit set Main supplier: OSAGE MUNICIPAL WATER SUPPLY · 3,637 people · 2024 | 1/1 | UCMR-5 |
Water suppliers serving Osage
| Supplier | Population served |
|---|---|
| OSAGE MUNICIPAL WATER SUPPLY | 3,637 |
Frequently asked questions about Osage tap water
Is Osage tap water safe to drink?
EPA testing detected 16 contaminants in the water serving Osage. 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 Osage?
1 public water supplier report drinking-water monitoring for Osage, Iowa to the EPA. Each is listed above with its population served.
What contaminants are in Osage's water?
The contaminants EPA monitoring detected in Osage include Nitrate, Copper, Lead, TTHM, Total Haloacetic Acids (HAA5). 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.