Water Quality in Fresno, CA (93778)
EPA violation data for public water systems serving ZIP code 93778.
Active Health Violations
1 health-based violation 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 48% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
7
Water Systems
4
Violations (5yr)
1
Health-Based
Location
Loading map...
Water Systems Serving This Area (7)
Cal Trans Buttonwillow Sfty Rsra
Caltrans Phillip S. Raine Sfty Rsra Sb
Caltrans Chester H. Warlow Sfty Rsra
All resolvedCaltrans Phillip S. Raine Sfty Rsra Nb
All resolvedCaltrans Visalia Maintenance Station
1 health-basedLa Kebrada Restaurant
Anderson Clayton-Butte Gin
Contaminants 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 2022
How Does This Compare?
Fresno (93778) has more violations than 48% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 4.
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.