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.
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?
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
- Reverse osmosis is the most effective method for nitrate removal
- Ion exchange systems designed for nitrate can also work
- Standard carbon filters do NOT remove nitrate
- Boiling water increases nitrate concentration — never boil for nitrate
Look for filters certified under NSF 53 / NSF 58 for nitrate removal.