Use this checklist to prepare, document and evidence your written control scheme for legionella in line with UK guidance (HSG274, L8, ACoP).
1) Roles & Accountability
- Duty Holder identified; appointment letter and authority documented.
- Responsible Person(s) appointed; competence and responsibilities defined.
- Escalation path and key contacts available to staff and contractors.
2) System Understanding
- Asset list and current schematics (including little‑used outlets) maintained.
- Operating parameters documented (temperatures, set‑points, duty/standby).
3) Control Scheme
- Temperature targets and monitoring points set (sentinel and representative).
- Flushing plan for infrequently used outlets defined and scheduled.
- Inspection and servicing plan for tanks, calorifiers, TMVs, showers and hoses.
4) Sampling & Testing
- Triggers for legionella sampling defined; laboratory arrangements in place.
- Results interpretation and corrective action thresholds documented.
5) Records & Evidence
- Temperature logs, flushing records, inspection and servicing reports.
- Corrective actions with dates, responsible person and verification.
- Training and competence records and appointment letters.
6) Review & Change Control
- Review cadence set; triggers include system or occupancy changes.
- Risk assessment and scheme updated following findings or incidents.
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