Anchorage County, AK

ZIP 99508

In ZIP 99508, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Golden Nugget Rv Park, Malaspina Mhp meets every EPA legal limit; 1 contaminant is above health goals, led by arsenic at 1,721× California’s Public Health Goal.
• Nearest Superfund site: Elmendorf Air Force Base, 5.1 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Tesoro - Anchorage Terminal (88%), mostly benzene.
• Fine particles (PM2.5) average 5.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.

Grades for ZIP 99508

• Superfund sites nearbyD to F
• Factories and industrial sitesB
• Oil and gas wellsB
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityA to C
• Neighborhood health statusA to F
• Past wildfire impactsA
• Past flood impactsA
• Radiation signalsA to B

Based on 9 census tracts · compiled October 25, 2026 · how each grade works and its sources

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