Evonik Chester precipitated silica plant
Large load · 1200 W. FRONT ST., Chester, PA
Evonik Corporation operates a precipitated silica plant at 1200 West Front Street, Chester, Delaware County, Pennsylvania. The plant makes SIPERNAT silica. No site electricity demand figure is published.
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Overview
Evonik's facility in Chester employs about 50 and manufactures SIPERNAT precipitated performance silica. A 2025 permit-modification application describes the Chester facility as operating various emission sources.
Profile
- Ownership
- Evonik Corporation owns the facility at 1200 West Front Street in Chester.
- Permits and water
- The Pennsylvania DEP issued NPDES Permit PA0051713 for the industrial wastewater discharge. The Delaware River Basin Commission approval runs from March 6, 2024 to March 6, 2029 for an existing 1.8 million gallon per day wastewater treatment plant.
Facility
- Activity
- Precipitated silica production (SIPERNAT)
- Industry
- Industrial
- Site type
- Facility
- Operating status
- Operating
Reported Nov 25, 2025
Permits and agreements
- Permit
- NPDES Permit PA0051713