Exceeds EPA Limit Nitrate EXCEEDS EPA LIMIT

Nitrate in Encino, CA Drinking Water

Nitrate data for Encino, California · 45,670 residents · 4 ZIP codes

In Encino, California, 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
56
EPA Violations
High
Health Risk
Reverse Osmosis or Ion Exchange
Best Filter Method

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-04-05

Nitrate in Encino Tap Water

Encino, California has 56 EPA violations related to nitrate in drinking water.

This analysis covers 45,670 residents across 4 ZIP codes in Encino.

Encino's overall water quality grade is F (19/100).

Is Nitrate in Encino Water Safe?

Nitrate levels in parts of Encino 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 Encino

Date Violation Type Status ZIP Code
2025-01-01 Nitrate-Nitrite (Known) Known 91316
2025-01-01 Nitrate-Nitrite (Known) Known 91416
2025-01-01 Nitrate-Nitrite (Known) Known 91426
2025-01-01 Nitrate-Nitrite (Known) Known 91436
2024-10-01 Nitrate-Nitrite (Known) Known 91316
2024-10-01 Nitrate-Nitrite (Known) Known 91416
2024-10-01 Nitrate-Nitrite (Known) Known 91426
2024-10-01 Nitrate-Nitrite (Known) Known 91436
2024-07-01 Nitrate-Nitrite (Known) Known 91316
2024-07-01 Nitrate-Nitrite (Known) Known 91416
2024-07-01 Nitrate-Nitrite (Known) Known 91426
2024-07-01 Nitrate-Nitrite (Known) Known 91436
2024-04-01 Nitrate-Nitrite (Known) Known 91316
2024-04-01 Nitrate-Nitrite (Known) Known 91416
2024-04-01 Nitrate-Nitrite (Known) Known 91426
2024-04-01 Nitrate-Nitrite (Known) Known 91436
2024-01-01 Nitrate-Nitrite (Known) Known 91316
2024-01-01 Nitrate-Nitrite (Known) Known 91416
2024-01-01 Nitrate-Nitrite (Known) Known 91426
2024-01-01 Nitrate-Nitrite (Known) Known 91436
... 36 more violations

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 Encino 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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