Calhoun County, MI

ZIP 49068

In ZIP 49068, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: My Place At Twin Valley meets every EPA legal limit; 3 contaminants are above health goals, led by arsenic at 500× California’s Public Health Goal.
• Closer to Superfund sites than 60% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Tenneco Automotive Operating Co Inc. (100%), mostly chromium.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 165,126 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 49068

• Superfund sites nearbyA to D
• Factories and industrial sitesC to F
• Oil and gas wellsB to F
• Parks and nature nearbyB to C
• Air qualityB to C
• Drinking water qualityA to C
• Pesticide useF
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsB to C

Based on 6 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…