Water Quality in Oxnard, CA (93023)
EPA violation data for public water systems serving ZIP code 93023.
Active Health Violations
5 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 68% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
21,036
Population
22
Water Systems
12
Violations (5yr)
5
Health-Based
Location
Loading map...
Water Systems Serving This Area (22)
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
Ventura River Water District
2 health-basedMeiners Oaks Cwd
All resolvedSiete Robles Mutual Water Co
1 health-basedRanchitos Mutual Water Co
Tico Mutual Water Co
Circle B Ranch
Midway Mobilehome Park
Hermitage Mutual Water Co
Krotona Institute
1 health-basedCamp Whittier
Camp Scheideck
1 health-basedElms Mobile Home Park
Usfs - Reyes Creek Campground
Usfs - Lions Canyon Campground
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Annual water quality report delivery requirement.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2023
How Does This Compare?
Oxnard (93023) has more violations than 68% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 12.
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
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 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.