Montgomery County, PA

ZIP 18070

In ZIP 18070, 6 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; 8 contaminants are above health goals, led by arsenic at 2,250× California’s Public Health Goal.
• Nearest Superfund site: Crossley Farm, 1.8 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Custom Processing Services LLC (69%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 222,778 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 18070

• Superfund sites nearbyD to F
• Factories and industrial sitesD to F
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityC
• Drinking water qualityA to F
• Pesticide useC to D
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsF

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

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