The average operator salary at Mossyrock was $16,476 , which is 61 percent lower than the average salary for this job in Washington, and 66 percent lower than the national average for this job . Operator salaries at Mossyrock typically range from $13,523 to $15,287 (25th to 75th percentile). The highest reported operator salary was $32,248. There are 7 employees at Mossyrock with the job title operator.