Water and Wastewater Treatment Plant and System Operators Salary in Maine

Water and wastewater treatment plant and system operators in Maine earn the most in Portland (average $67,260 a year) and the least in Bangor ($64,980), across the 2 Maine metro areas we cover. Statewide, BLS puts the water and wastewater treatment plant and system operators average at $65,010 and the median at $61,870 for 710 workers. The U.S. average for this job is $62,540.

Water and Wastewater Treatment Plant and System Operators average salary by city in Maine

Portland$67,260
Bangor$64,980

Pay, take-home pay and cost of living

City	Average	Median	25th pct.	Take-home*	Cost of living
Portland	$67,260	$63,810	$61,670	$53,285	102
Bangor	$64,980	$58,980	$50,160	$51,683	97

*Average salary after federal and state taxes for a single filer; Maine's standard deduction phase-out above $102,250 of income is not modelled. Cost of living: BEA price parity, U.S. = 100.

Water and Wastewater Treatment Plant and System Operators salary in other states

Water and Wastewater Treatment Plant and System Operators salary by city and state

More about pay in Maine

Sources and how to read this page

Wages: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS), May 2025 estimates for metropolitan areas. SOC code 51-8031.
U.S. and statewide figures: BLS OEWS national and state estimates, May 2025, every employer including rural areas.
Cost of living: Bureau of Economic Analysis regional price parities (RPP), 2024; 100 = U.S. average.

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