Water Quality in Los Angeles, CA (91361)
EPA violation data for public water systems serving ZIP code 91361.
Past Health-Based Violations
1 health-based violation was found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 12 monitoring/reporting violations.
More violations than 72% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
18,802
Population
18
Water Systems
13
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (18)
Griffith Park
Los Angeles-City, Dept. Of Water & Power
Long Beach Utilities Department
Oxnard Water Dept
Ventura Water Department
Ventura Wwd No. 8 - Simi Valley
All resolvedCal American Water Co
All resolvedCity Of Thousand Oaks Water Department
Camarillo Water Dept
Golden State Water Company - Simi Valley
Ventura Cwwd No. 1 - Moorpark
Pearland Acres Mhp
1 health-basedPalmdale Mobile Home Park
Ventura Farms
Cgg Portable Sleigh Camp
Caelesta Winery
Inn At Opolo Kitchen, The
Russell Valley Mwd
Contaminants Found
Annual water quality report delivery requirement.
At high levels, nitrate can cause blue baby syndrome in infants.
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Used to disinfect water — generally safe at regulated levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
Los Angeles (91361) has more violations than 72% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 13.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.