What was found in ZIP 97540
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 |
|---|---|---|---|
| Copper | 880.95 µg/L 68% of the EPA limit 1300 µg/L Main supplier: MEDFORD WATER COMMISSION · 106,068 people · 2019 | 3/3 | SYR4 |
| Nitrate | 472 µg/L 4.7% of the EPA limit 10000 µg/L Highest in the ZIP: ASHLAND WATER DEPARTMENT · 20,946 people · 2019 | 1/3 | SYR4 |
| Nitrate-Nitrite | 472 µg/L 4.7% of the EPA limit 10000 µg/L Highest in the ZIP: ASHLAND WATER DEPARTMENT · 20,946 people · 2018 | 1/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 26.975 µg/L 45% of the EPA limit 60 µg/L Main supplier: MEDFORD WATER COMMISSION · 106,068 people · 2019
Highest in the ZIP: 52.1 µg/L — ASHLAND WATER DEPARTMENT · 20,946 people · 2019 | 3/3 | SYR4 |
| TTHM | 24.83 µg/L 31% of the EPA limit 80 µg/L Main supplier: MEDFORD WATER COMMISSION · 106,068 people · 2019
Highest in the ZIP: 47.71 µg/L — ASHLAND WATER DEPARTMENT · 20,946 people · 2019 | 3/3 | SYR4 |
| Lead | 1.295 µg/L 8.6% of the EPA limit 15 µg/L Main supplier: MEDFORD WATER COMMISSION · 106,068 people · 2019
Highest in the ZIP: 6.105 µg/L — TALENT, CITY OF · 6,293 people · 2019 | 3/3 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: MEDFORD WATER COMMISSION · 106,068 people · 2025
Highest in the ZIP: 0.0034 mg/L — ASHLAND WATER DEPARTMENT · 20,946 people · 2025 | 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 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 97540
| Supplier | State | Population served |
|---|---|---|
| MEDFORD WATER COMMISSION | OR | 106,068 |
| ASHLAND WATER DEPARTMENT | OR | 20,946 |
| TALENT, CITY OF | OR | 6,293 |
Frequently asked questions about ZIP 97540 tap water
Is the tap water in ZIP 97540 safe to drink?
EPA testing detected 7 contaminants across the water suppliers serving ZIP 97540. 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 97540?
3 public water suppliers report EPA drinking-water monitoring for ZIP 97540. Each is listed above with its population served.
What contaminants are in ZIP 97540's water?
EPA monitoring detected Copper, Nitrate, Nitrate-Nitrite, Total Haloacetic Acids (HAA5), TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.