Worcester County, MA

ZIP 01331

In ZIP 01331, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: South Royalston Improvement Corp meets every EPA legal limit; 5 contaminants are above health goals, led by arsenic at 375× California’s Public Health Goal.
• Nearest Superfund site: Troy Mills Landfill, 9.9 miles away.
• Largest share of modeled toxic air from industry: Ls Starrett Co (98%), mostly trichloroethylene.
• Fine particles (PM2.5) average 6.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 90,069 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 01331

• Superfund sites nearbyA to C
• Factories and industrial sitesA to F
• Oil and gas wellsA
• Parks and nature nearbyA to C
• Air qualityA
• Drinking water qualityC
• Pesticide useB to D
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to C
• Radiation signalsB to F

Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources

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