Legionella risk assessing in domestic properties - Plumbing Engineering Services Design Guide

This guide has been designed to aid qualified plumbers to conduct an assessment of recognising the risks of Legionella pneumophila becoming active, within the domestic water services installed in residential dwellings.

Chapters include:

• Preambles
• Water-borne diseases
• Water’s ability to transmit disease
• Common water-borne diseases
• Legionnaires’ disease, background history
• Types of Legionnaires’ disease
• Legionella pneumophila
• Influence of temperature
• Other influencing factors
• Potential risks in building services
• Human susceptibility
• Travel-associated Legionnaires’ disease
• Pontiac fever
• Pseudomonas
• Legislation, regulations, codes of practice, standards and guides
• Conflicts between regulations, codes of practice, standards and guides
• Summary of risk factors
• Recognising and mitigating the risks
• Explanatory schematic scheme drawings
• Point-of-use water heaters
• Spa pools, hot tubs and whirlpool baths
• Solar-heated domestic hot water systems
• Reclaimed water systems
• Additional notes on piping materials
• Preparing for the risk assessment
• Assessing the risk
• Risk assessment notes
• Risk assessment checksheet
• Risk assessment checksheet guidance notes
• Producing a schematic drawing
• Recommendations 53
• Appendices.