Wastewater Treatment Plant Operator salary at Modesto

The average wastewater treatment plant operator salary at Modesto was $55,255 , which is 56 percent lower than the average salary for this job in California, but 1 percent higher than the national average for this job . Wastewater Treatment Plant Operator salaries at Modesto typically range from $52,941 to $57,403 (25th to 75th percentile). The highest reported wastewater treatment plant operator salary was $60,453. There are 8 employees at Modesto with the job title wastewater treatment plant operator.