Washington County, MN

ZIP 55071

In ZIP 55071, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Newport has 1 contaminant at or over an EPA legal limit; 8 contaminants are above health goals, led by pfoa at 586× California’s Public Health Goal.
• Nearest Superfund site: Koch Refining Co./n-Ren Corp., 4.8 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: St Paul Park Refining Co LLC (85%), mostly cobalt compounds.
• Fine particles (PM2.5) average 8.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 49,911 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 55071

• Superfund sites nearbyA
• Factories and industrial sitesD to F
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityD
• Drinking water qualityC to D
• Pesticide useD
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD

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

Loading the full report, with every source…