The three councils seek to appoint a single company to provide a water quality management Services. The councils have in place full water quality risk assessments for all buildings at 2009. Risk Assessments are the most important aspect of Legionella Control as they are the foundation to the whole process. However these documents are living and require reviewing at least every two years or when a major change has occurred sufficient to alter the level of risk or control measures thus requiring a new written scheme. The Service required will enable the council’s to comply with The Health and Safety Executive publication L8 Approved Code of Practice and Guidance- Legionnaires Disease-The Control of Legionella Bacteria in Water Systems.