Water Quality in San Diego, CA (92071)
EPA violation data for public water systems serving ZIP code 92071.
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 is also 1 monitoring/reporting violation.
More violations than 53% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
59,590
Population
10
Water Systems
5
Violations (5yr)
4
Health-Based
Location
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Water Systems Serving This Area (10)
San Diego, City Of
Helix Water District
Otay Water District
Sweetwater Authority
Oceanside, City Of
Escondido, City Of
Vista Irrigation District
Barrett Lake Mh And Rv Llc
4 health-basedHeavenly Oaks
Granite Well Water Co Inc
Contaminants Found
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
San Diego (92071) has more violations than 53% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 5.
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
One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.
Targets:Nitrate, Nitrite, Dissolved Solids
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.