How much does a Wastewater Treatment Plant Superintendent make in Swampscott, MA? (2025)
As of August 01, 2025, Wastewater Treatment Plant Superintendents in Swampscott, MA earn an average annual salary of $123,341 with an hourly rate of $59. Salary ranges from $95,726 (10th percentile) to $145,380 (90th percentile), with the majority earning between $108,886 (25th percentile) and $134,877 (75th percentile). Compensation varies based on experience, skills, company size, and local market factors - all explored below.