Santa Cruz County, CA

ZIP 95003

In ZIP 95003, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Watsonville, City Of has 2 contaminants at or over an EPA legal limit; 18 contaminants are above health goals, led by pfos at 5.2× California’s Public Health Goal.
• Nearest Superfund site: Watkins-Johnson Co. (stewart Division Plant), 6.4 miles away.
• Largest share of modeled toxic air from industry: Trical Inc (93%), mostly chloropicrin.
• Fine particles (PM2.5) average 8.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 702,318 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 95003

• Superfund sites nearbyA to D
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyB to D
• Air qualityA to D
• Drinking water qualityB to F
• Pesticide useF
• Neighborhood health statusB to D
• Past wildfire impactsA to D
• Past flood impactsB to C
• Noise levelsA to B
• Radiation signalsC

Based on 10 census tracts · compiled September 10, 2026 · how each grade works and its sources

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