Fairbanks North Star County, AK

ZIP 99707

In ZIP 99707, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Twin Springs Water has 1 contaminant at or over an EPA legal limit; 3 contaminants are above health goals, led by arsenic at 3,358× California’s Public Health Goal.
• Closer to Superfund sites than 68% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Fort Knox Mine (97%), mostly chromium compounds.
• Fine particles (PM2.5) average 6.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.

Grades for ZIP 99707

• Superfund sites nearbyD
• Factories and industrial sitesB
• Oil and gas wellsA
• Air qualityB
• Drinking water qualityC to F
• Neighborhood health statusB
• Past wildfire impactsF
• Past flood impactsA
• Radiation signalsC

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

Loading the full report, with every source…