Treatment Plant Mechanic salary at City of Middletown

The average treatment plant mechanic salary at City of Middletown was $49,217 . Treatment Plant Mechanic salaries at City of Middletown typically range from $47,200 to $54,959 (25th to 75th percentile). The highest reported treatment plant mechanic salary was $55,900. There are 6 employees at City of Middletown with the job title treatment plant mechanic.