The company will pay stipulated penalties of $3,844,000 besides a commitment to spending $10.5 million on additional pollution control equipment and other projects to have the allegations settled.

The settlement will require emissions reduction of nitrogen oxides (NOx) by approximately 24t per annum, sulfur dioxide (SO2) by approximately 385t tons per annum, and particulate matter by approximately 59t per annum.

EPA’s assistant administrator at the office of enforcement and compliance assurance Cynthia Giles said that the settlement holds Sinclair accountable for exceeding the emissions limits agreed to in a previous settlement for Clean Air Act violations and ensures that the people of Wyoming have cleaner, healthier air.

"EPA is committed to ensuring that companies comply with environmental requirements that protect people’s health," added Giles.
The settlement reached between the said parties is subject to a 30-day public comment period and a final court approval.