Nitrate in Oregon Drinking Water — 1 ZIPs Tested
EPA data analysis for nitrate in Oregon drinking water systems
ZipCheckup tracks Nitrate in Oregon drinking water: 1 ZIP codes with detected levels on record. No ZIP codes exceed the EPA limit on record. Nitrate carries a high health-risk designation.
Nitrate Contamination in Oregon
ZipCheckup analyzed drinking water data across 482 ZIP codes in Oregon for nitrate contamination. 1 ZIP codes have reported nitrate detections, and 0 have EPA violations on record.
EPA Standard for Nitrate
The EPA maximum contaminant level (MCL) for nitrate is 10 mg/L (as nitrogen), governed by the National Primary Drinking Water Regulations. Water systems that exceed this limit must take corrective action and notify consumers.
Worst ZIP Codes for Nitrate in Oregon
These ZIP codes reported the highest nitrate levels in Oregon based on CCR reports and EPA data:
Lowest Nitrate Levels in Oregon
These ZIP codes had the lowest reported nitrate detections in Oregon:
Health Effects of Nitrate
How to Remove Nitrate From Drinking Water
The most effective treatment for nitrate removal is Reverse Osmosis or Ion Exchange. Look for filters certified under NSF 53 / NSF 58 standards.
Check Your ZIP Code
Use the ZipCheckup water quality search to see nitrate data for your specific water system in Oregon.
Worst ZIP Codes for Nitrate in Oregon
Ranked by highest nitrate detection level.
| Rank | ZIP Code | City | Level Detected | EPA Limit | Status |
|---|---|---|---|---|---|
| 1 | 97307 | Keizer | 5470 ppb | 10000 ppb | Within Limit |
Lowest Nitrate Levels in Oregon
| ZIP Code | City | Level Detected |
|---|---|---|
| 97307 | Keizer | 5470 ppb |