Wastewater Treatment Plant Attendant salary in Japan

Average Yearly Salary of Wastewater Treatment Plant Attendant in Japan is approximately 5,382,627 JPY (34,827 USD). Data is for 2025 and indicates a pre-tax value. The salary itself depends on multiple factors such as seniority, job performance, certifications, experience or any other bonuses. The value indicated is an average amount based on records we have in database. Real values may vary. The data is for orientational purposes.

What does Wastewater Treatment Plant Attendant do?

A wastewater treatment plant attendant is responsible for the operation and maintenance of wastewater treatment facilities. They monitor and control the treatment process, ensuring that all equipment is functioning properly and that water quality standards are met. Attendants perform routine inspections, collect samples, and conduct tests to analyze the efficiency of the treatment process. They also troubleshoot and repair any equipment malfunctions or operational issues. Additionally, attendants may be involved in the disposal of sludge and the management of hazardous materials. This occupation requires a strong understanding of wastewater treatment processes, knowledge of safety protocols, and the ability to operate various equipment and tools.

Skills: wastewater treatment, plant operation, maintenance, water quality, equipment troubleshooting, hazardous materials management
Job industry: Water and wastewater treatment

How much does Wastewater Treatment Plant Attendant make?

Difference in salary year over year or average salary increase is approximately 4 %


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Salary comparison to National average

Is Wastewater Treatment Plant Attendant a well paid job?

Yes, our data show that Wastewater Treatment Plant Attendant is an averagely well paid job that still allows for some yearly savings. With years and experience the salary might increase even further, resulting in higher satisfaction.

What is considered a high salary for Wastewater Treatment Plant Attendant?

High salary for Wastewater Treatment Plant Attendant would be somewhere between 5,920,890 JPY and 7,804,809 JPY. However this is an estimation based on Gaussian Distribution.

How much can you save working as Wastewater Treatment Plant Attendant in Japan?

Living in Japan the approximate monthly expenses are: 1,698 USD. This amount covers basic needs such as food, housing, clothing, healthcare and education costs for a single person. No luxury expenses such as traveling, leisure, hobbies are included in the estimation.

Estimated Yearly Salary: 5,382,627 JPY
Estimated Monthly Salary: 448,552 JPY
Estimated Weekly Salary: 103,512 JPY per week
Estimated Hourly Salary: 2,588 JPY per hour
By working as Wastewater Treatment Plant Attendant a person can save up to 1,205 USD per month or 14,456 USD yearly. Values are pre-tax.

NOTE: These values are estimates and are averaged for the whole country. Furthermore the value is likely exaggerated as no other expenses are taken into account in the projection. Unessential expenses are very subjective and are difficult to assess. Most likely the previously estimated number is significantly lower for majority of people. Expenses in different cities across the country may vary. Above values accuracy is low and is based on limited set of data obtained.

For more information regarding expenses in Japan, see costs of living in Japan.

Salary comparison to region and neighbouring coutries

Country's neighbours are: China, South Korea, North Korea, Russia.
To make it easier for comparison a conversion from local currency to USD has been made (conversion rates may vary).

Estimated Yearly Salary for Wastewater Treatment Plant Attendant

Last revision of data: 2025-01-04

Salary increase per years of experience

Based on data available the salary increase per years of experience is as following

0 years (beginner) equals base salary

1 to 5 years of experience yields +12% salary increase

6 to 10 years of experience yields +25% salary increase

11 to 15 years of experience yields +16% salary increase

16 to 25 years of experience yields +9% salary increase

more than 25 years of experience yields +10% salary increase

NOTE: Details based on limited set of data. Percentages may vary. The salary increase over years of experience can vary widely based on factors such as job industry, job role, location, company size, and individual performance. To gain even larger increase in salary one is advised to switch jobs and / or employer.

Top 10 highest salaries in Japan

Data as of 2025

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