Wastewater Treatment Plant Operator salary at County of Hawaii

The average wastewater treatment plant operator salary at County of Hawaii was $70,224 , which is 3 percent lower than the average salary for this job in Hawaii, but 29 percent higher than the national average for this job . Wastewater Treatment Plant Operator salaries at County of Hawaii typically range from $67,116 to $72,240 (25th to 75th percentile). The highest reported wastewater treatment plant operator salary was $74,868. There are 9 employees at County of Hawaii with the job title wastewater treatment plant operator.