Ascension Parish, LA

ZIP 70725

In ZIP 70725, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Gonzales Water System meets every EPA legal limit; 7 contaminants are above health goals, led by lithium at 2.6× the USGS health-based screening level.
• Nearest Superfund site: Old Inger Oil Refinery, 1.9 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Basf Corp (54%), mostly ethylene oxide.
• Fine particles (PM2.5) average 9.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 44,318 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 70725

• Superfund sites nearbyA
• Factories and industrial sitesF
• Oil and gas wellsF
• Parks and nature nearbyD
• Air qualityF
• Drinking water qualityB
• Pesticide useD
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsB

Based on 1 census tract · compiled October 25, 2026 · how each grade works and its sources

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