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Monitoring schedule builder

Pick the systems you have and get a typical monitoring schedule, the recurring tasks and how often they usually run. Your risk assessment sets the real frequencies; treat this as a starting checklist.

1. Which water systems do you have?
Treat this as a starting point

These frequencies are typical starting points, not fixed rules. Your Legionella risk assessment and written scheme of control set the actual tasks and cadence for your site, they may run more or less often than shown here.

Source: HSE, HSG274 Part 2 (2024), ‘Operation and inspection’ (p.70) and ‘Microbiological monitoring’ (p.85); cooling towers in Part 1 (p.42).

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"Legionella monitoring schedule builder." Legionella.io. https://legionella.io/tools/monitoring-schedule-builder/

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