Is nitrate a problem in Arizona drinking water?

Nitrate was detected above the EPA limit of 10 mg/L (as nitrogen) in 1 ZIP code across Arizona. Check the table above for specific areas. Consider Reverse Osmosis or Ion Exchange if your ZIP is affected.

How widespread is nitrate in Arizona water?

No nitrate detections were reported in Arizona in the exported EPA records.

Nitrate · Arizona

Nitrate in Arizona Drinking Water — 1 Violations

EPA data analysis for nitrate in Arizona drinking water systems

ZipCheckup tracks Nitrate in Arizona drinking water: 0 ZIP codes with detected levels on record. 1 ZIP code exceeds the EPA limit (10 mg/L (as nitrogen)). Nitrate carries a high health-risk designation.

ZIPs with Violations

0.3%

Violation Rate

10 mg/L (as nitrogen)

EPA Limit

High

Health Risk

Reverse Osmosis or Ion Exchange

Best Filter Method

Nitrate Contamination in Arizona

ZipCheckup analyzed EPA enforcement records across 297 ZIP codes in Arizona. 1 ZIP codes have nitrate-related violations on record.

The violation rate for nitrate in Arizona is 0.3% of all ZIP codes — lower than 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 Arizona.

Cities with Nitrate Data in Arizona

1 city in Arizona has nitrate testing data available.

New River

Arizona Water Quality Overview: See statewide water quality rankings on the Arizona water quality page.

Learn more about Nitrate: Read the full guide on Nitrate in drinking water.

Home → Contaminants → Nitrate → Arizona

How to cite this page

APA

ZipCheckup. (2026). Nitrate in Arizona Drinking Water — 1 Violations. https://zipcheckup.com/contaminants/nitrates/arizona/

BibTeX

@misc{zipcheckup-contaminants-nitrates-arizona,
  author = {{ZipCheckup}},
  title  = {{Nitrate in Arizona Drinking Water — 1 Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/contaminants/nitrates/arizona/}
}

Page version: August 2026.