Treatment Plant salary at City of Middletown

The average treatment plant salary at City of Middletown was $54,145 , which is 1 percent lower than the average salary for this job in Ohio, and 11 percent lower than the national average for this job . Treatment Plant salaries at City of Middletown typically range from $50,219 to $58,973 (25th to 75th percentile). The highest reported treatment plant salary was $71,227. There are 14 employees at City of Middletown with the job title treatment plant.