The federal government argued modifications led to increased sulfur dioxide emissions. Ameren maintains air quality monitors near the site meet federal standards.
"We have a great opportunity and responsibility to make smart, meaningful investments that serve Missourians now and into the future," Gov. Parson said
In the past 3 years, nearly 600 people were arrested in the City of St. Louis for marijuana-related charges. Of those individuals, nearly 500 were Black.