What was found in ZIP 97330
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 854 µg/L 21% of the EPA limit 4000 µg/L | 1/2 | SYR4 |
| Copper | 716 µg/L 55% of the EPA limit 1300 µg/L | 2/2 | SYR4 |
| Nitrate | 400 µg/L 4% of the EPA limit 10000 µg/L | 2/2 | SYR4 |
| Nitrate-Nitrite | 140 µg/L 1.4% of the EPA limit 10000 µg/L | 1/2 | SYR4 |
| TTHM | 66 µg/L 83% of the EPA limit 80 µg/L | 2/2 | SYR4 |
| Lead | 51 µg/L 340% of the EPA limit, in the worst sample — 15 µg/L | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 30.5 µg/L 51% of the EPA limit 60 µg/L | 2/2 | SYR4 |
| Barium | 4 µg/L 0.2% of the EPA limit 2000 µg/L | 1/2 | SYR4 |
| Lead | 0.0019 mg/L 13% of the EPA limit 0.0150 mg/L | 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 single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 97330
| Supplier | State | Population served |
|---|---|---|
| CORVALLIS, CITY OF | OR | 61,468 |
| ADAIR VILLAGE WATER SYSTEM | OR | 875 |
Frequently asked questions about ZIP 97330 tap water
Is the tap water in ZIP 97330 safe to drink?
EPA testing detected 9 contaminants across the water suppliers serving ZIP 97330. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 97330?
2 public water suppliers report EPA drinking-water monitoring for ZIP 97330. Each is listed above with its population served.
What contaminants are in ZIP 97330's water?
EPA monitoring detected Fluoride, Copper, Nitrate, Nitrate-Nitrite, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.