Sewage Treatment Plant Op salary at Department of Corrections

The average sewage treatment plant op salary at Department of Corrections was $86,747 , which is 2 percent higher than the average salary for this job in Massachusetts, and 2 percent higher than the national average for this job . Sewage Treatment Plant Op salaries at Department of Corrections typically range from $74,452 to $106,724 (25th to 75th percentile). The highest reported sewage treatment plant op salary was $128,400. There are 16 employees at Department of Corrections with the job title sewage treatment plant op.