Median of all compensation (including tips, bonus, and overtime) by years of experience.
For Water or Liquid Waste Treatment Plant Operators, more experience in the field does not usually mean bigger paychecks. Although individuals who have less than five years' experience earn $35K on average, people with five to 10 years benefit from a notably larger average of $42K. Water or Liquid Waste Treatment Plant Operators who work for 10 to 20 years in their occupation tend to earn about $45K. More than 20 years of experience mean a somewhat bigger median paycheck of $48K, but it's not much more than what less experienced people make.