Wastewater Treatment O&M Supervisor salary at City of Portland

The average wastewater treatment o&m supervisor salary at City of Portland was $85,944 . Wastewater Treatment O&M Supervisor salaries at City of Portland typically range from $79,128 to $93,010 (25th to 75th percentile). The highest reported wastewater treatment o&m supervisor salary was $98,517. There are 6 employees at City of Portland with the job title wastewater treatment o&m supervisor.