San Francisco County, CA

ZIP 94103

In ZIP 94103, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Sfpuc City Distribution Division meets every EPA legal limit; 13 contaminants are above health goals, led by arsenic at 283× California’s Public Health Goal.
• Nearest Superfund site: Hunters Point Naval Shipyard, 4.7 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Bio-Rad Laboratories Inc (50%), mostly acrylamide.
• Fine particles (PM2.5) average 10.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 21 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 94103

• Superfund sites nearbyD to F
• Factories and industrial sitesF
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityD to F
• Drinking water qualityC
• Pesticide useA
• Neighborhood health statusA to C
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsC to F
• Radiation signalsB

Based on 16 census tracts · compiled October 25, 2026 · how each grade works and its sources

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