Written Schemes of Examination for Waste Water Systems

Clear, compliant inspection planning for waste water pressure systems

What a Waste Water Written Schemes of Examination Involves

A Written Scheme of Examination for Waste Water sets out how and when a pressure system should be examined so that it remains safe to use. It identifies the parts of the system that require examination, the nature of those examinations, and the intervals at which they must take place.

Waste water treatment works rely on pressure systems throughout the treatment process, from sludge digestion and biogas handling to process air and pumping. Typical equipment requiring a Written Scheme of Examination on a waste water site includes:

Anaerobic digesters and biogas storage
Compressed air systems
Boiler and thermal hydrolysis
Surge vessels
Booster sets

When a WSE Is Required for Wastewater Services

A WSE is required for most pressure systems found on waste water treatment works, including anaerobic digestion and biogas storage, thermal hydrolysis and boiler plant, compressed air systems, surge vessels, and booster sets.

It is typically needed when:

A new pressure system is installed on a treatment works
Existing sludge, biogas, or process plant is being reviewed or modified
Examination intervals are due
Insurers or compliance audits request updated documentation
Responsibility for a system changes hands, such as during AMP scheme handovers or asset transfers

Having a clear, up-to-date scheme in place helps reduce risk and avoid unnecessary downtime across your treatment works.

Why Use PumpServ

Experienced team

Our engineers have practical experience working with pressure systems on waste water treatment works, from anaerobic digesters and biogas storage through to thermal hydrolysis, boiler plant, and booster installations. This allows us to produce Written Schemes that reflect how treatment works plant actually operates, not just how it looks on paper.

Straightforward approach

We take a clear, straightforward approach, ensuring schemes are easy to understand and aligned with the real-world condition and use of your sludge, biogas, and process equipment.

Nationwide coverage

With nationwide coverage, we can support water companies, contractors, and treatment operators across single sites or multi-site works portfolios.

WSE Supports Compliance and Ongoing Safety for Waste Water Systems

A well-prepared Written Scheme of Examination supports safe operation, planned maintenance, and ongoing compliance with pressure systems regulations across your waste water treatment assets.

We work closely with water companies and their contractors to ensure schemes remain relevant over time as sites are upgraded or expanded, and can support follow-on services where required, helping you manage your responsibilities with confidence.

Need advice on your system?

Speak to our engineers to arrange a Written Scheme of Examination for the pressure systems on your waste water treatment works.

Arrange a free survey with PumpServ