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• Dyno Nobel, Inc. resolves chemical emergency release notification violations at Cheyenne, Wyo. facility

  Company to pay $20,352 penalty for failure to submit Emergency Planning and Community Right-to-Know Act release notifications

  EPA News Release: Dyno Nobel, Inc. resolves chemical emergency release notification violations at Cheyenne, Wyo. facility

  • Release Date: January 18, 2023

• Sinclair Oil to pay $1.6 million penalty and install additional pollution controls at Sinclair, Wyoming Refinery

  Agreement resolves violations of 2008 agreement to reduce pollutant emissions

  EPA News Release: Sinclair Oil to pay $1.6 million penalty and install additional pollution controls at Sinclair, Wyoming Refinery

  • Release Date: June 20, 2019