Water Quality in San Diego, CA (91906)
EPA violation data for public water systems serving ZIP code 91906.
Active Health Violations
6 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 79% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
3,325
Population
21
Water Systems
20
Violations (5yr)
6
Health-Based
Location
Loading map...
Water Systems Serving This Area (21)
San Diego, City Of
Helix Water District
Otay Water District
Sweetwater Authority
Oceanside, City Of
Escondido, City Of
Vista Irrigation District
Campo Casino (Golden Acorn Casino)
La Posta Casino
Lake Morena'S Oak Shores Mwc
1 health-basedCampo Church Road System (Hud Homes)
4 health-basedFreedom Ranch
Old Campo
All resolvedSouth Campo
All resolvedLake Morena Trailer Resort
Cameron Corners
1 health-basedCampo Group Llc
Campo Diner Water System
San Ysidro Health - Mhfm
All resolvedMountain Empire R.V. Park And Campground
Lake Morena Trailer Resort
Contaminants Found
At high levels, nitrate can cause blue baby syndrome in infants.
Missed testing deadlines — not a detection of bacteria.
Used to disinfect water — generally safe at regulated levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
San Diego (91906) has more violations than 79% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 20.
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.