Sullivan County, NY

ZIP 12729

In ZIP 12729, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hoey-De Graw Waterworks meets every EPA legal limit; 5 contaminants are above health goals, led by lithium at 4.1× the USGS health-based screening level.
• Nearest Superfund site: Carroll & Dubies Sewage Disposal, 2.2 miles away.
• Largest share of modeled toxic air from industry: Cosmed Of New Jersey (65%), mostly ethylene oxide.
• Fine particles (PM2.5) average 6.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 10,076 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 12729

• Superfund sites nearbyA to F
• Factories and industrial sitesA
• Oil and gas wellsA to B
• Parks and nature nearbyB
• Air qualityA
• Drinking water qualityA to C
• Pesticide useC to D
• Neighborhood health statusB to C
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA to D
• Radiation signalsD to F

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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