https://arstechnica.com/tech-policy/2019/01/epa-at-a-30-year-low-for-referring-pollution-cases-for-criminal-prosecution/

Polluters likely had a good year in 2018. According to numbers from advocacy group Public Employees for Environmental Responsibility (PEER), the number of criminal pollution cases that the Environmental Protection Agency (EPA) referred to the Department of Justice for potential prosecution was lower in 2018 than it had been in 30 years.