Average Base Salary
Average Hourly Rate
The average sewage treatment plant operator salary in Colorado, United States is $83,792 or an equivalent hourly rate of $40. This is 1% higher (+$1,119) than the average sewage treatment plant operator salary in the United States. In addition, they earn an average bonus of $4,106. Salary estimates based on salary survey data collected directly from employers and anonymous employees in Colorado, United States.