Legionella Risk Review

Is the name of the nominated responsible person up to date

Is the name of the nominated deputy responsible person up to date

Has the occupancy level of the building(s) changed since the assessment was completed

Has the building had any change of use since the assessment was completed

Has the susceptibility level of the building occupants changed

Has there been any local construction of water systems, outside the building(s), that may affect the legionella risk on site

Is there any evidence of site staff being trained in Legionella awareness and their responsibilities within the control scheme

Is there a written procedure to define the action to be taken if Legionella bacteria are detected in samples taken from site

Is there a written procedure to define the action to be taken if a case of Legionnaire’s disease is suspected from water systems on the site

Is there a written procedure regarding when and how to alternate hot or cold water pumps

Are the responsibilities for carrying out the tasks within the control scheme clearly defined

By checking the available records, can it be shown that all recommendations of the risk assessment have been implemented

Are there schematic diagrams for every water system

Are the schematic drawings accurate with regard to the locations that they supply

Do the schematic drawings show enough detail so that they are not ambiguous

Is the outlet asset register accurate? I.e. are all of the outlet types and number defined in each location where water is used

Is the “fixed asset” register accurate? I.e. are all of the cold-water storage tanks and hot water vessels recorded

Is a supplementary biocide being dosed into any of the systems

Has this biocide dosing equipment been installed since the previous risk assessment

Is there a secure, close fitting lid fitted

Is there a lid vent (tank breather) fitted and is it in good condition

Is there an overflow screen fitted and is it in good condition

Is the tank well insulated from heat gain

Is the tank corroded

Is there any evidence of scale deposition

Does the level control valve shut off before the overflow level is reached

Does the inlet supply valve shut off the supply

Does the outlet valve shut off the outlet

Was an internal inspection of the vessel undertaken

Were the internal surfaces of the vessel covered in scale deposits

Were there any signs of internal corrosion

Is the vessel well insulated to prevent heat loss

Does the vessel drain valve operate safely

Was the vessel drain flushed until clear water was achieved

Is there a flow/storage temperature gauge fitted

Is there a return line temperature gauge fitted

Is the return pump operating

Are the temperature records or biocide levels for all cold water systems complete

Have all non-conformances in cold-water temperature or biocide level been investigated and addressed

Are the temperature records or biocide levels for all hot water systems complete

Have all non-conformances in hot water temperature or biocide level been investigated and addressed

Are there full records of flushing for any identified “low use” outlets

Has the risk assessment been reviewed and records produced at the agreed frequency

Are there records to demonstrate that showers have been inspected and disinfected at least quarterly

Are there records of duty/standby pumps being alternated on DHWS return

Are there suitable records of any fitted biocide dosing system

Are there records of cold-water tank and hot water vessel inspection

Is the current legionella risk assessment valid

Is the current control scheme valid