Montgomery County, PA

ZIP 19477

In ZIP 19477, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: North Wales Water Authority has 2 contaminants at or over an EPA legal limit; 17 contaminants are above health goals, led by pfos at 6.5× California’s Public Health Goal.
• Nearest Superfund site: Borit Asbestos, 2.7 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Superior Tube Co Inc (39%), mostly 1-bromopropane.
• Fine particles (PM2.5) average 7.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 38,013 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 19477

• Superfund sites nearbyF
• Factories and industrial sitesD
• Oil and gas wellsA
• Parks and nature nearbyD
• Air qualityD
• Drinking water qualityF
• Pesticide useC
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsD
• Noise levelsA
• Radiation signalsD

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

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