Treatment Plant Supervisor salary at Medina County

The average treatment plant supervisor salary at Medina County was $65,845 , which is 25 percent higher than the average salary for this job in Ohio, but 36 percent lower than the national average for this job . Treatment Plant Supervisor salaries at Medina County typically range from $61,575 to $68,214 (25th to 75th percentile). The highest reported treatment plant supervisor salary was $70,699. There are 7 employees at Medina County with the job title treatment plant supervisor.