Exceeds EPA Limit Nitrate EXCEEDS EPA LIMIT

Nitrate in Yuma, AZ Drinking Water

Nitrate data for Yuma, Arizona · 146,630 residents · 3 ZIP codes

ZipCheckup's reading of Nitrate in Yuma, Arizona: Nitrate carries a high health-risk designation.

Nitrate exposure in drinking water is tracked by EPA across the country; households in Yuma, Arizona are among those with confirmed detections in the public water record.

10 mg/L (as nitrogen)
EPA MCL
18
EPA Violations
High
Health Risk
Reverse Osmosis or Ion Exchange
Best Filter Method

Data: EPA SDWIS, CCR Reports, ECHO

Nitrate in Yuma Tap Water

Yuma, Arizona has 18 EPA violations related to nitrate in drinking water.

This analysis covers 146,630 residents across 3 ZIP codes in Yuma.

Is Nitrate in Yuma Water Safe?

Nitrate levels in parts of Yuma exceed the EPA MCL of 10 mg/L (as nitrogen). The EPA requires water systems to take corrective action when this limit is exceeded.

If you live in an affected ZIP code, consider installing a reverse osmosis or ion exchange filter certified under NSF 53 / NSF 58 and testing your water independently.

EPA Violations for Nitrate in Yuma

Date Violation Type Status ZIP Code
2026-01-01 Nitrate-Nitrite (Known) Known 85365
2025-07-01 Nitrate-Nitrite (Known) Known 85365
2025-04-01 Nitrate-Nitrite (Known) Known 85365
2025-01-01 Nitrate-Nitrite (Known) Known 85365
2024-07-01 Nitrate-Nitrite (Known) Known 85365
2024-04-01 Nitrate-Nitrite (Known) Known 85365
2024-01-01 Nitrate-Nitrite (Known) Known 85365
2023-10-01 Nitrate-Nitrite (Known) Known 85365
2023-07-01 Nitrate-Nitrite (Known) Known 85365
2023-04-01 Nitrate-Nitrite (Known) Known 85365
2023-01-01 Nitrate-Nitrite (Known) Known 85365
2022-10-01 Nitrate-Nitrite (Known) Known 85365
2022-07-01 Nitrate-Nitrite (Known) Known 85365
2022-04-01 Nitrate-Nitrite (Known) Known 85365
2022-01-01 Nitrate-Nitrite (Known) Known 85365
2021-10-01 Nitrate-Nitrite (Known) Known 85365
2021-07-01 Nitrate-Nitrite (Known) Known 85365
2021-04-01 Nitrate-Nitrite (Known) Known 85365

Health Effects of Nitrate

  • Methemoglobinemia ("blue baby syndrome") in infants under 6 months
  • Increased risk of colorectal and bladder cancer (long-term)
  • Thyroid disease from chronic exposure
  • Possible reproductive effects

Health risk severity: High. Governed by the National Primary Drinking Water Regulations.

How Nitrate Gets Into Drinking Water

  • Agricultural fertilizer runoff
  • Animal feedlot operations and manure
  • Septic system leachate
  • Urban stormwater and wastewater discharge

What to Do About Nitrate in Yuma Water

  1. Reverse osmosis is the most effective method for nitrate removal
  2. Ion exchange systems designed for nitrate can also work
  3. Standard carbon filters do NOT remove nitrate
  4. Boiling water increases nitrate concentration — never boil for nitrate

Look for filters certified under NSF 53 / NSF 58 for nitrate removal.

Related

HomeContaminantsNitrateArizona → Yuma

How to cite this page

APA ZipCheckup. (2026). Nitrate in Yuma, AZ Drinking Water. https://zipcheckup.com/contaminants/nitrates/yuma-az/
BibTeX
@misc{zipcheckup-contaminants-nitrates-yuma-az,
  author = {{ZipCheckup}},
  title  = {{Nitrate in Yuma, AZ Drinking Water}},
  year   = {2026},
  url    = {https://zipcheckup.com/contaminants/nitrates/yuma-az/}
}

Page version: September 2026.

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