Published onFebruary 4, 2024Best States for Water and Wastewater Treatment Plant and System Operators: Highest-paid Water and Wastewater Treatment Plant and System Operators by StateWater-and-Wastewater-Treatment-Plant-and-System-OperatorsTop-StatesSalary-BreakdownFind out which states pay the highest salaries for water and wastewater treatment plant and system operators.