What was found in ZIP 97229
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 |
|---|---|---|---|
| Nitrate | 1000 µg/L 10% of the EPA limit 10000 µg/L | 3/3 | SYR4 |
| Nitrate-Nitrite | 1000 µg/L 10% of the EPA limit 10000 µg/L | 3/3 | SYR4 |
| Copper | 941 µg/L 72% of the EPA limit 1300 µg/L | 3/3 | SYR4 |
| Fluoride | 700 µg/L 18% of the EPA limit 4000 µg/L | 2/3 | SYR4 |
| Lead | 648 µg/L 4320% of the EPA limit, in the worst sample — 15 µg/L | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 76.7 µg/L 128% of the EPA limit, in the worst sample — 60 µg/L | 2/3 | SYR4 |
| TTHM | 62.6 µg/L 78% of the EPA limit 80 µg/L | 3/3 | SYR4 |
| Bromoform | 17.4 µg/L No EPA limit set | 1/3 | SYR4 |
| Barium | 13.5 µg/L 0.7% of the EPA limit 2000 µg/L | 2/3 | SYR4 |
| Gross Beta Particle Activity | 5.8 pCi/L No EPA limit set | 2/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.4 pCi/L 29% of the EPA limit 15 pCi/L | 1/3 | SYR4 |
| Chromium | 3.08 µg/L 3.1% of the EPA limit 100 µg/L | 2/3 | SYR4 |
| Arsenic | 1.46 µg/L 15% of the EPA limit 10 µg/L | 1/3 | SYR4 |
| Combined Uranium | 0.0880 µg/L 0.3% of the EPA limit 30 µg/L | 1/3 | SYR4 |
| Lead | 0.0107 mg/L 72% of the EPA limit 0.0150 mg/L | 3/3 | 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 97229
| Supplier | State | Population served |
|---|---|---|
| PORTLAND WATER BUREAU | OR | 666,200 |
| TUALATIN VALLEY WATER DISTRICT | OR | 224,600 |
| KOHALA RANCH WATER CO. | HI | 850 |
Frequently asked questions about ZIP 97229 tap water
Is the tap water in ZIP 97229 safe to drink?
EPA testing detected 15 contaminants across the water suppliers serving ZIP 97229. 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 97229?
3 public water suppliers report EPA drinking-water monitoring for ZIP 97229. Each is listed above with its population served.
What contaminants are in ZIP 97229's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Copper, Fluoride, Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.