Water Quality in Modesto, CA (95316)
EPA violation data for public water systems serving ZIP code 95316.
Active Health Violations
15 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 84% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
8,022
Population
13
Water Systems
29
Violations (5yr)
15
Health-Based
Location
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Water Systems Serving This Area (13)
Modesto, City Of
City Of Merced
Turlock, City Of
Ceres, City Of
1 health-basedCity Of Los Banos
1 health-basedCity Of Atwater
Denair Community Services District
Monte Vista Farming
Mountain View Elementary School
12 health-basedGratton School
Vista Livestock
California Nut Company
1 health-basedGolden Valley Almonds
Contaminants Found
A naturally occurring element that can cause cancer and other health effects at high levels.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Annual water quality report delivery requirement.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
Modesto (95316) has more violations than 84% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 29.
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.