Maui County, HI

ZIP 96790

In ZIP 96790, none of the 12 things we check has a part graded D or F.

• Drinking water: Maui Highlands meets every EPA legal limit; 3 contaminants are above health goals, led by bromoform at 100× 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: Maui Electric Co Ltd Kahului Generating Station (72%), mostly sulfuric acid.
• Fine particles (PM2.5) average 3.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.

Grades for ZIP 96790

• Superfund sites nearbyA
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyA to B
• Air qualityA
• Drinking water qualityA to C
• Neighborhood health statusB to C
• Past wildfire impactsA
• Past flood impactsA

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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