Water Treatment Plant Operator salary at Metropolitan Water District of Southern California

The average water treatment plant operator salary at Metropolitan Water District of Southern California was $201,671 , which is 31 percent higher than the average salary for this job in California, and 232 percent higher than the national average for this job . Water Treatment Plant Operator salaries at Metropolitan Water District of Southern California typically range from $171,148 to $245,242 (25th to 75th percentile). The highest reported water treatment plant operator salary was $295,089. There are 70 employees at Metropolitan Water District of Southern California with the job title water treatment plant operator.