What was found in Orofino'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 | 435 µg/L 4.4% of the EPA limit 10000 µg/L Main supplier: OROFINO CITY OF · 2,459 people · 2019
Highest in the city: 599 µg/L — LAKEVIEW WATER DISTRICT · 45 people · 2019 | 3/4 | SYR4 |
| Fluoride | 424.3 µg/L 11% of the EPA limit 4000 µg/L Highest in the city: LAKEVIEW WATER DISTRICT · 45 people · 2019 | 2/4 | SYR4 |
| Barium | 11.2 µg/L 0.6% of the EPA limit 2000 µg/L Main supplier: OROFINO CITY OF · 2,459 people · 2019
Highest in the city: 92.8 µg/L — LAKEVIEW WATER DISTRICT · 45 people · 2019 | 4/4 | SYR4 |
| TTHM | 67.92 µg/L 85% of the EPA limit 80 µg/L Main supplier: OROFINO CITY OF · 2,459 people · 2019 | 3/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 56.78 µg/L 95% of the EPA limit 60 µg/L Main supplier: OROFINO CITY OF · 2,459 people · 2019 | 3/4 | SYR4 |
| Chloroform | 14.4 µg/L No EPA limit set Highest in the city: LAKEVIEW WATER DISTRICT · 45 people · 2019 | 1/4 | SYR4 |
| Dibromochloromethane | 10.762 µg/L No EPA limit set Highest in the city: LAKEVIEW WATER DISTRICT · 45 people · 2019 | 1/4 | SYR4 |
| Bromodichloromethane | 6.583 µg/L No EPA limit set Highest in the city: LAKEVIEW WATER DISTRICT · 45 people · 2019 | 1/4 | SYR4 |
| Dichloroacetic Acid | 5.6125 µg/L No EPA limit set Highest in the city: LAKEVIEW WATER DISTRICT · 45 people · 2019 | 1/4 | SYR4 |
| Trichloroacetic Acid | 2.9975 µg/L No EPA limit set Highest in the city: LAKEVIEW WATER DISTRICT · 45 people · 2019 | 1/4 | SYR4 |
| Chromium | 2.772 µg/L 2.8% of the EPA limit 100 µg/L Highest in the city: LAKEVIEW WATER DISTRICT · 45 people · 2019 | 3/4 | SYR4 |
| Dibromoacetic Acid | 2.3625 µg/L No EPA limit set Highest in the city: LAKEVIEW WATER DISTRICT · 45 people · 2019 | 1/4 | SYR4 |
| Bromoform | 1.9905 µg/L No EPA limit set Highest in the city: LAKEVIEW WATER DISTRICT · 45 people · 2019 | 1/4 | SYR4 |
| Selenium | 1.47 µg/L 2.9% of the EPA limit 50 µg/L Highest in the city: LAKEVIEW WATER DISTRICT · 45 people · 2019 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 0.4890 pCi/L 9.8% of the EPA limit 5 pCi/L Main supplier: OROFINO CITY OF · 2,459 people · 2019
Highest in the city: 0.6830 pCi/L — LAKEVIEW WATER DISTRICT · 45 people · 2019 | 4/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.4400 pCi/L 2.9% of the EPA limit 15 pCi/L Highest in the city: WELLS BENCH WATER AND ROAD · 28 people · 2016 | 1/4 | SYR4 |
| Lead | 0.0120 mg/L 80% of the EPA limit 0.0150 mg/L Main supplier: OROFINO CITY OF · 2,459 people · 2025 | 4/4 | LCR |
Water suppliers serving Orofino
| Supplier | Population served |
|---|---|
| OROFINO CITY OF | 2,459 |
| RIVERSIDE WATER AND SEWER DISTRICT | 2,000 |
| LAKEVIEW WATER DISTRICT | 45 |
| WELLS BENCH WATER AND ROAD | 28 |
Frequently asked questions about Orofino tap water
Is Orofino tap water safe to drink?
EPA testing detected 17 contaminants in the water serving Orofino. 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 Orofino?
4 public water suppliers report drinking-water monitoring for Orofino, Idaho to the EPA. Each is listed above with its population served.
What contaminants are in Orofino's water?
The contaminants EPA monitoring detected in Orofino include Nitrate, Fluoride, Barium, 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.