Montgomery County, PA

ZIP 18073

In ZIP 18073, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Red Hill Water Authority has 2 contaminants at or over an EPA legal limit; 10 contaminants are above health goals, led by pfos at 5.1× California’s Public Health Goal.
• Nearest Superfund site: Bally Ground Water Contamination, 5.1 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Custom Processing Services LLC (75%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.3 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 18073

• Superfund sites nearbyD
• Factories and industrial sitesC to D
• Oil and gas wellsA
• Parks and nature nearbyC to D
• Air qualityC
• Drinking water qualityD to F
• Pesticide useC to D
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsD

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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