Lassen County, CA

ZIP 96123

In ZIP 96123, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Lassen County Water Works District #1 has 1 contaminant at or over an EPA legal limit; 6 contaminants are above health goals, led by pfos at 24× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Sierra Pacific Industries - Burney Div (96%), mostly dioxin and dioxin-like compounds.
• Fine particles (PM2.5) average 7.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 46,755 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 96123

• Superfund sites nearbyA
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityC
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsF
• Past flood impactsA
• Noise levelsA
• Radiation signalsB

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…