United States - Employed full time: Wage and salary workers: Water and wastewater treatment plant and system operators occupations: 16 years and over: Men was 81.00000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, United States - Employed full time: Wage and salary workers: Water and wastewater treatment plant and system operators occupations: 16 years and over: Men reached a record high of 104.00000 in January of 2020 and a record low of 45.00000 in January of 2004. Trading Economics provides the current actual value, an historical data chart and related indicators for United States - Employed full time: Wage and salary workers: Water and wastewater treatment plant and system operators occupations: 16 years and over: Men - last updated from the United States Federal Reserve on April of 2024.