What was found in Eugene's water
The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 8200 µg/L 82% of the EPA limit 10000 µg/L | 16/28 | SYR4 |
| Nitrate-Nitrite | 8130 µg/L 81% of the EPA limit 10000 µg/L | 10/28 | SYR4 |
| Copper | 2330 µg/L 179% of the EPA limit, in the worst sample — 1300 µg/L | 20/28 | SYR4 |
| Fluoride | 392 µg/L 9.8% of the EPA limit 4000 µg/L | 6/28 | SYR4 |
| Lead | 112 µg/L 747% of the EPA limit, in the worst sample — 15 µg/L | 22/28 | SYR4 |
| TTHM | 94.4 µg/L 118% of the EPA limit, in the worst sample — 80 µg/L | 16/28 | SYR4 |
| Arsenic | 73 µg/L 730% of the EPA limit, in the worst sample — 10 µg/L | 10/28 | SYR4 |
| Barium | 64.3 µg/L 3.2% of the EPA limit 2000 µg/L | 17/28 | SYR4 |
| Total Haloacetic Acids (HAA5) | 52 µg/L 87% of the EPA limit 60 µg/L | 6/28 | SYR4 |
| Gross Alpha, Excl. Radon And U | 6.6 pCi/L 44% of the EPA limit 15 pCi/L | 6/28 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 4.59 µg/L 77% of the EPA limit 6 µg/L | 3/28 | SYR4 |
| Combined Radium (-226 And -228) | 4.24 pCi/L 85% of the EPA limit 5 pCi/L | 11/28 | SYR4 |
| Gross Beta Particle Activity | 3.8 pCi/L No EPA limit set | 1/28 | SYR4 |
| Xylenes, Total | 2.94 µg/L 0% of the EPA limit 10000 µg/L | 1/28 | SYR4 |
| Antimony, Total | 0.7050 µg/L 12% of the EPA limit 6 µg/L | 1/28 | SYR4 |
| Selenium | 0.6570 µg/L 1.3% of the EPA limit 50 µg/L | 1/28 | SYR4 |
| Beryllium, Total | 0.6000 µg/L 15% of the EPA limit 4 µg/L | 1/28 | SYR4 |
| Lead | 0.0259 mg/L 173% above the EPA limit of 0.0150 mg/L | 28/28 | LCR |
Water suppliers serving Eugene
Frequently asked questions about Eugene tap water
Is Eugene tap water safe to drink?
EPA testing detected 18 contaminants in the water serving Eugene. 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 Eugene?
28 public water suppliers report drinking-water monitoring for Eugene, Oregon to the EPA. Each is listed above with its population served.
What contaminants are in Eugene's water?
The contaminants EPA monitoring detected in Eugene include Nitrate, Nitrate-Nitrite, Copper, Fluoride, Lead. The full list, with the highest level found 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.