Nitrate in Oklahoma Drinking Water — 11 Violations
EPA data analysis for nitrate in Oklahoma drinking water systems
ZipCheckup tracks Nitrate in Oklahoma drinking water: 0 ZIP codes with detected levels on record. 11 ZIP codes exceed the EPA limit (10 mg/L (as nitrogen)). Nitrate carries a high health-risk designation.
Nitrate Contamination in Oklahoma
ZipCheckup analyzed EPA enforcement records across 549 ZIP codes in Oklahoma. 11 ZIP codes have nitrate-related violations on record.
The violation rate for nitrate in Oklahoma is 2% of all ZIP codes — roughly in line with the national average.
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.
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 Oklahoma.
Cities with Nitrate Data in Oklahoma
7 cities in Oklahoma have nitrate testing data available.