What was found in Peru'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 |
|---|---|---|---|
| Copper | 1196.5 µg/L 92% of the EPA limit 1300 µg/L Main supplier: PERU · 10,300 people · 2019 | 2/2 | SYR4 |
| Fluoride | 1026.3 µg/L 26% of the EPA limit 4000 µg/L Main supplier: PERU · 10,300 people · 2017 | 2/2 | SYR4 |
| Nitrate | 365 µg/L 3.7% of the EPA limit 10000 µg/L Main supplier: PERU · 10,300 people · 2019
Highest in the city: 430 µg/L — LYNNWOOD WATER CORPORATION · 100 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 336.25 µg/L 3.4% of the EPA limit 10000 µg/L Main supplier: PERU · 10,300 people · 2019 | 2/2 | SYR4 |
| Lithium | 75.7 µg/L No EPA limit set Main supplier: PERU · 10,300 people · 2023 | 1/2 | UCMR-5 |
| Barium | 13.08 µg/L 0.7% of the EPA limit 2000 µg/L Main supplier: PERU · 10,300 people · 2017
Highest in the city: 26.7 µg/L — LYNNWOOD WATER CORPORATION · 100 people · 2017 | 2/2 | SYR4 |
| TTHM | 20.76 µg/L 26% of the EPA limit 80 µg/L Main supplier: PERU · 10,300 people · 2019 | 2/2 | SYR4 |
| Bromoform | 19.88 µg/L No EPA limit set Main supplier: PERU · 10,300 people · 2019 | 1/2 | SYR4 |
| Lead | 15.1 µg/L 101% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: PERU · 10,300 people · 2019 | 2/2 | SYR4 |
| Nitrite | 10 µg/L 1% of the EPA limit 1000 µg/L Main supplier: PERU · 10,300 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 5.525 pCi/L 111% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Main supplier: PERU · 10,300 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 3.92 µg/L No EPA limit set Main supplier: PERU · 10,300 people · 2019 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 3.8705 µg/L 6.5% of the EPA limit 60 µg/L Main supplier: PERU · 10,300 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 3.3785 µg/L No EPA limit set Main supplier: PERU · 10,300 people · 2019 | 1/2 | SYR4 |
| Cadmium | 3.3 µg/L 66% of the EPA limit 5 µg/L Highest in the city: LYNNWOOD WATER CORPORATION · 100 people · 2017 | 1/2 | SYR4 |
| Chloroform | 3.27 µg/L No EPA limit set Highest in the city: LYNNWOOD WATER CORPORATION · 100 people · 2017 | 1/2 | SYR4 |
| Thallium, Total | 2.6 µg/L 130% of the EPA limit, at the 95th percentile of samples — 2 µg/L Main supplier: PERU · 10,300 people · 2017 | 1/2 | SYR4 |
| Dichloroacetic Acid | 2.17 µg/L No EPA limit set Highest in the city: LYNNWOOD WATER CORPORATION · 100 people · 2017 | 1/2 | SYR4 |
| Dibromochloromethane | 1.855 µg/L No EPA limit set Main supplier: PERU · 10,300 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0105 mg/L 70% of the EPA limit 0.0150 mg/L Main supplier: PERU · 10,300 people · 2025 | 2/2 | LCR |
Water suppliers serving Peru
| Supplier | Population served |
|---|---|
| PERU | 10,300 |
| LYNNWOOD WATER CORPORATION | 100 |
Frequently asked questions about Peru tap water
Is Peru tap water safe to drink?
EPA testing detected 20 contaminants in the water serving Peru. 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 Peru?
2 public water suppliers report drinking-water monitoring for Peru, Illinois to the EPA. Each is listed above with its population served.
What contaminants are in Peru's water?
The contaminants EPA monitoring detected in Peru include Copper, Fluoride, Nitrate, Nitrate-Nitrite, Lithium. 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.