Average Water and sewerage plant operatives Salary in Cardiff / Caerdydd
ONS ASHE 2025 · Wales region · Updated October 2025
How Cardiff / Caerdydd compares
Worth noting that water and sewerage plant operativess in the Wales earned £30,413 at the median in 2025. Across the UK as a whole, the figure was £39,057 — a difference of 22.1%. Factor in the Wales's cost of living (10.0% below the UK norm) and a £30,413 salary has the purchasing power of approximately £33,792. Compared to the Cardiff / Caerdydd average across all roles (£33,599), water and sewerage plant operativess take home 9.5% less.
Cost of Living Adjustment
After adjusting for the regional cost of living (Wales index: 90, UK=100), a salary of £30,413 has an effective purchasing power of approximately £33,792 — equivalent to earning that amount in an area with average UK costs. The cost of living in the Wales is 10.0% below the UK average.
Water and sewerage plant operatives salary across UK regions
Water and sewerage plant operatives salary in areas near Cardiff / Caerdydd
Salary data is by ONS region. Cardiff / Caerdydd is in the Wales region. Below are neighbouring regions — click to explore salaries there.
Water and sewerage plant operatives Salary Guide
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Frequently Asked Questions
What is the average water and sewerage plant operatives salary in Cardiff / Caerdydd?
The median water and sewerage plant operatives salary in the Wales (which includes Cardiff / Caerdydd) is £30,413 per year, based on ONS ASHE 2025 data. The mean salary is typically higher due to top earners pulling the average up.
How does water and sewerage plant operatives pay in Cardiff / Caerdydd compare to the UK average?
Water and sewerage plant operatives in the Wales earn 22.1% below the national median of £39,057. Other regions such as London and the South East typically offer higher salaries for this role.
Is water and sewerage plant operatives a well-paid job in Cardiff / Caerdydd compared to other roles?
The average salary across all jobs in Cardiff / Caerdydd is £33,599. Water and sewerage plant operatives in the Wales earn £30,413, which is 9.5% below the local average across all occupations.
About this data
Salary figures for water and sewerage plant operativess cover the Wales region. The all-jobs average is specific to Cardiff / Caerdydd. Source: ONS ASHE 2025. Methodology.