The Prevention and Control of Legionellosis Approved Code of Practice – (L8)

This document calls for all operators of water systems to undertake a Risk Assessment.

Britewater offer a comprehensive Legionella Risk Assessment survey and report comprising:

• Identify all water systems on site, cooling, domestic, process, etc.
• Gather data relating to volumes, operation, temperatures, chemical dosing, water sources, location, equipment cooled, facilities served.
• Measurement of temperatures across the whole of domestic systems from cold water tanks, calorifiers to taps and showers in each facility served.
• Examine cold water storage tanks for condition, layout of pipework, lagging, lid and vent screens and general compliance with byelaw 30.
• Calorifiers - check temperature profile for stratification and examine general condition and look for presence of asbestos and lead pipework.
• Downservices for temperatures, general condition, presence of deadlegs, static or flow low areas, temperature loss, labelling of taps, condition of shower mixer and heads.
• Cooling systems general location with relation to air intakers, thoroughfares, windows, adjacent properties.
• Physical condition of tower, including size, volume, state of repair, condition of distribution troughs, drift eliminators and sump.
• Location of chemical dosing and programme of inhibitors and biocides.
• Cleaning regimes for domestic water services and cooling towers frequency and efficiency.
• Local population. Look for susceptible groups and risks presented by water services.
• Preparation of detailed report including:
  • Schematic drawing of system.
  • Commentary on water systems specific recommendations for upgrading modifications, repairs, etc to ensure the system meets the mechanical and design standards now required.
  • Recommendations on monitoring, record keeping, management responsibilities, system operation, cleaning and sterilising programmes.
  • Recommend changes in management and operation to reduce risks.