Exceeds EPA Limit Nitrate EXCEEDS EPA LIMIT

Nitrate in Magnolia, TX Drinking Water

Nitrate data for Magnolia, Texas · 72,228 residents · 3 ZIP codes

In Magnolia, Texas, Nitrate has been detected in the public water supply — a contaminant that health agencies track because of documented effects associated with prolonged exposure at elevated concentrations.

10 mg/L (as nitrogen)
EPA MCL
4
EPA Violations
High
Health Risk
Reverse Osmosis or Ion Exchange
Best Filter Method

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-06-04

Nitrate in Magnolia Tap Water

Magnolia, Texas has 4 EPA violations related to nitrate in drinking water.

This analysis covers 72,228 residents across 3 ZIP codes in Magnolia.

Magnolia's overall water quality grade is B (71/100).

Is Nitrate in Magnolia Water Safe?

Nitrate levels in parts of Magnolia 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 Magnolia

Date Violation Type Status ZIP Code
2022-01-01 Nitrate (Resolved) Resolved 77354
2021-10-01 Nitrate (Resolved) Resolved 77354
2021-07-01 Nitrate (Resolved) Resolved 77354
2021-04-01 Nitrate (Resolved) Resolved 77354

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 Magnolia 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.

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