Water Quality in Oxnard, CA (93033)
EPA violation data for public water systems serving ZIP code 93033.
Past Health-Based Violations
4 health-based violations were found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 6 monitoring/reporting violations.
More violations than 67% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
78,737
Population
14
Water Systems
10
Violations (5yr)
4
Health-Based
Location
Loading map...
Water Systems Serving This Area (14)
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
Dempsey Road Mutual Water Co
Laguna Vista School/Oceanview School Dis
3 health-basedBouquet Multimedia
Gp Anacapa Foods, Llc.
Oxnard Pallet Company
1 health-basedSun Valley Group
All resolvedContaminants Found
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
Oxnard (93033) has more violations than 67% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 10.
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.
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
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) 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.