Legionella Risk Assessments

The survey needs to consider system use as well as installed equipment. An outlet used throughout the week differs from one in a rarely occupied area. Changes to use can matter even when no plumbing work has taken place.

The scope can include reviewing existing information, surveying accessible water systems, identifying storage and distribution arrangements, examining control records and developing prioritised findings. It names the buildings and systems covered, with exclusions and additional access needs made clear.

Outputs include a system description, relevant schematic information, identified risks, existing controls and an action plan. HSE explains the assessment requirements, including water-system understanding, exposure and management arrangements. The plumbing survey supports those conclusions with identifiable locations and equipment.

A risk assessment is different from a water sample or a cleaning certificate. It examines how the installation and its use can create or control risk. Sampling and remedial works follow a defined purpose where the findings justify them.

Distinguish a physical defect, missing information and an ineffective routine. A damaged tank component may need repair; an unidentified pipe route may need further survey; a missed monitoring task needs a working arrangement and responsible person. A useful report makes those differences clear.

Provide existing assessments, drawings, asset lists, monitoring records and details of previous corrective work. Explain the water supply, tanks, heaters, outlets and any specialist systems. Identify areas that are unused, used intermittently or occupied by people with greater susceptibility to infection.

Arrange access to plant, storage and representative outlets, with local staff able to explain use. Identify landlord boundaries and any systems held by retained specialists. Where concealed routes or locked areas limit the survey, agree how the information gap will be recorded and resolved.

We establish the premises and system boundary, review records and coordinate the competent assessment. The survey considers the installation alongside its operating and monitoring information. Findings are recorded against the relevant location so the estates team can commission the right follow-on task.

At handover, priorities and responsibilities are explained. Separate urgent control decisions from planned physical improvements and record the evidence needed to close each action. The assessment remains linked to the water-management programme and is reviewed when changes or findings make its basis unreliable.

System complexity, building numbers, record quality, access and the level of schematic detail affect cost. A readily documented building differs from an estate where tanks, branches and ownership boundaries need to be established first.

The survey may need access to occupied rooms and restricted plant spaces. Coordinate escorts and local knowledge before attendance so important systems are not missed. Repairs, sampling, intrusive tracing and preparation of additional drawings should have clear inclusion or separate instructions in the proposal.

Offices need tenancy boundaries and varying occupancy understood. Education needs closure periods and intermittent use considered. Healthcare and care needs the relevant specialist water-safety and user requirements incorporated into the brief.

These are examples within the full sector range. Our service and project offering supports the sectors we serve, with the survey and control recommendations matched to each premises and water system.