Water Quality in Vallejo, CA (95618)
EPA violation data for public water systems serving ZIP code 95618.
Active Health Violations
14 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 78% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
26,267
Population
13
Water Systems
19
Violations (5yr)
14
Health-Based
Location
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Water Systems Serving This Area (13)
City Of Vallejo
City Of Fairfield
1 health-basedCity Of Vacaville
City Of Davis
City Of Woodland
City Of West Sacramento
1 health-basedUc - Davis
All resolvedSuisun-Solano Water Authority
11 health-basedCity Of Benicia
Harris Moran Seed Company
Harris Moran Seed Company - Water
1 health-basedYolo Bypass Wildlife Area
All resolvedHarris Moran Seet Co, Inc
Contaminants Found
At high levels, nitrate can cause blue baby syndrome in infants.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Exceeds limitSampled: Jul 2025
How Does This Compare?
Vallejo (95618) has more violations than 78% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 19.
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.