What was found in ZIP 97138
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 | 446 µg/L 4.5% of the EPA limit 10000 µg/L Main supplier: WARRENTON, CITY OF · 9,100 people · 2019
Highest in the ZIP: 600 µg/L — SEASIDE WATER DEPARTMENT · 7,482 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 600 µg/L 6% of the EPA limit 10000 µg/L Highest in the ZIP: SEASIDE WATER DEPARTMENT · 7,482 people · 2013 | 1/2 | SYR4 |
| Copper | 518.5 µg/L 40% of the EPA limit 1300 µg/L Main supplier: WARRENTON, CITY OF · 9,100 people · 2018 | 2/2 | SYR4 |
| TTHM | 51.5 µg/L 64% of the EPA limit 80 µg/L Main supplier: WARRENTON, CITY OF · 9,100 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 34 µg/L 57% of the EPA limit 60 µg/L Main supplier: WARRENTON, CITY OF · 9,100 people · 2019 | 2/2 | SYR4 |
| Lead | 22.2 µg/L 148% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: WARRENTON, CITY OF · 9,100 people · 2018 | 2/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.7 µg/L 28% of the EPA limit 6 µg/L Highest in the ZIP: SEASIDE WATER DEPARTMENT · 7,482 people · 2018 | 1/2 | SYR4 |
| P-Dichlorobenzene | 0.5000 µg/L 0.7% of the EPA limit 75 µg/L Highest in the ZIP: SEASIDE WATER DEPARTMENT · 7,482 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0011 mg/L 7.7% of the EPA limit 0.0150 mg/L Main supplier: WARRENTON, CITY OF · 9,100 people · 2024 | 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 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 97138
| Supplier | State | Population served |
|---|---|---|
| WARRENTON, CITY OF | OR | 9,100 |
| SEASIDE WATER DEPARTMENT | OR | 7,482 |
Frequently asked questions about ZIP 97138 tap water
Is the tap water in ZIP 97138 safe to drink?
EPA testing detected 9 contaminants across the water suppliers serving ZIP 97138. 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 97138?
2 public water suppliers report EPA drinking-water monitoring for ZIP 97138. Each is listed above with its population served.
What contaminants are in ZIP 97138's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Copper, TTHM, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.