What was found in ZIP 97914
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 2020 µg/L 20% of the EPA limit 10000 µg/L Main supplier: ONTARIO, CITY OF · 14,465 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 1147 µg/L 11% of the EPA limit 10000 µg/L Main supplier: ONTARIO, CITY OF · 14,465 people · 2019 | 1/1 | SYR4 |
| Fluoride | 705.3 µg/L 18% of the EPA limit 4000 µg/L Main supplier: ONTARIO, CITY OF · 14,465 people · 2019 | 1/1 | SYR4 |
| Copper | 306.25 µg/L 24% of the EPA limit 1300 µg/L Main supplier: ONTARIO, CITY OF · 14,465 people · 2018 | 1/1 | SYR4 |
| TTHM | 78.085 µg/L 98% of the EPA limit 80 µg/L Main supplier: ONTARIO, CITY OF · 14,465 people · 2019 | 1/1 | SYR4 |
| Barium | 60.63 µg/L 3% of the EPA limit 2000 µg/L Main supplier: ONTARIO, CITY OF · 14,465 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 42.025 µg/L 70% of the EPA limit 60 µg/L Main supplier: ONTARIO, CITY OF · 14,465 people · 2019 | 1/1 | SYR4 |
| Lithium | 38.4 µg/L No EPA limit set Main supplier: ONTARIO, CITY OF · 14,465 people · 2025 | 1/1 | UCMR-5 |
| Lead | 6.705 µg/L 45% of the EPA limit 15 µg/L Main supplier: ONTARIO, CITY OF · 14,465 people · 2018 | 1/1 | SYR4 |
| Arsenic | 5.046 µg/L 50% of the EPA limit 10 µg/L Main supplier: ONTARIO, CITY OF · 14,465 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3.13 pCi/L 21% of the EPA limit 15 pCi/L Main supplier: ONTARIO, CITY OF · 14,465 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 2.8625 µg/L 9.5% of the EPA limit 30 µg/L Main supplier: ONTARIO, CITY OF · 14,465 people · 2019 | 1/1 | SYR4 |
| Chromium | 1.285 µg/L 1.3% of the EPA limit 100 µg/L Main supplier: ONTARIO, CITY OF · 14,465 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0021 mg/L 14% of the EPA limit 0.0150 mg/L Main supplier: ONTARIO, CITY OF · 14,465 people · 2024 | 1/1 | 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 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
Water suppliers serving ZIP 97914
| Supplier | State | Population served |
|---|---|---|
| ONTARIO, CITY OF | OR | 14,465 |
Frequently asked questions about ZIP 97914 tap water
Is the tap water in ZIP 97914 safe to drink?
EPA testing detected 14 contaminants across the water suppliers serving ZIP 97914. 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 97914?
1 public water supplier report EPA drinking-water monitoring for ZIP 97914. Each is listed above with its population served.
What contaminants are in ZIP 97914's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.