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FOI 2023 189 - Flooding and Overheating Incidents


Information Requested:

Can I please request, in the form of a spreadsheet such as Excel or CSV file, information on overheating and flooding incidents caused by severe weather in hospitals and/or health boards. Please provide the information for the financial years: 18/19, 19/20, 20/21, 21/22, 22/23. 


I would like the following information: 


1. The number of flooding incidents triggering a risk assessment. This is the number of times severe weather has flooded external roads or where water has breached the exterior of the building e.g. water ingress through roofs or doors. 

2. Overheating incidents where the daily maximum temperature exceeded 26˚C triggering a risk assessment. 

Please include: 

• Each occupied ward or clinical area having a daily maximum of over 26˚C as one incident. E.g. If two wards exceeded the daily maximum temperature for two days and one clinical area exceeded the threshold for one day then the number of occasions to be reported is five. 


• Incidents in areas defined as non-clinical space (e.g. medicine cabinets in central storage areas away from wards) 


If this request cannot be met within the cost limits for Freedom of Information requests, please can you provide me with advice and assistance on how I may refine my request. 


Information provided for the answer:

Thank you for your request dated 21st November 2023. 


There have been no flooding incidents and no overheating triggering risk assessments in buildings where Public Health Wales Staff are based. 


Please note this information is for information held by Public Health Wales only. Public Health Wales is the public health service for Wales and as such is an independent NHS Trust. Therefore, as an organisation we have no jurisdiction over the activities of Health Boards and frequently do not have access to the data that they produce.  I have provided contact details for each Health Board below; you would need to contact them individually for the information they hold in relation to their incidents of overheating and flooding in their hospitals/buildings.  


Aneurin Bevan University Health Board  


Betsi Cadwaladr University Health Board 


Cardiff and Vale University Health Board   


Cwm Taf Morgannwg University Health Board 


Swansea Bay University Health Board  


Hywel Dda University Health Board  


Powys Teaching Health Board 



If you are unhappy with the service you have received in relation to your request and wish to make a complaint or request a review of the decision, you should write to the Corporate Complaints Manager, Public Health Wales NHS Trust, 3, Number 2, Capital Quarter, Tyndall Street, Cardiff, CF10 4BZ.

If you are not content with the outcome of your complaint or review, you may apply directly to the Information Commissioner for a decision. Generally, the ICO cannot make a decision unless you have exhausted the complaints procedure provided by the Trust. The Information Commissioner can be contacted at:

Information Commissioner for Wales
2nd Floor
Churchill House
Churchill Way
CF10 2HH

Telephone: 029 2067 8400