In August 2018 the mayor of Evansville sent a letter to the Ohio River Valley Water Sanitation Commission (ORVWSO) opposing a proposal to eliminate pollution control standards for the Ohio River.
V srpnu 2018 zaslal starosta Evansville dopis komisi Ohio River Valley Water Sanitation Commission, ve kterém vyjadřoval nesouhlas s návrhem zrušit kontrolní limity znečištění řeky Ohio.