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Privacy notice regarding coal tip locations in Wales.

First published:
1 October 2021
Last updated:


The Welsh Government is developing a national geospatial dataset of disused coal tips in Wales. The data has been collated from the records of partners, such as local authorities, and additional tips have been identified by using openly available data sources such as historical maps and LiDAR terrain data. The data being collated included the tip boundaries, their risk rating and whether they are publically or privately owned. The Welsh Government will be Controller for personal information processed for this purpose.

What is the lawful basis for processing?

Your personal data is processed as part of Welsh Government’s public task; that is, exercising our official authority to undertake the core role and functions of the Welsh Government. The statutory basis for processing the data is a combination of powers – section 141 of the Local Government Act 1972, in conjunction with sections 11 and 12 of the Mines And Quarries (Tips) Act 1969; and section 58A of the Government of Wales Act 2006.

What personal information do we need to process?

We will be collecting the locations of all disused coal tips in Wales which includes the boundaries of the tip extents. This is necessary in order for partners, for example local authorities, to quality assure the data and undertake key actions of the taskforce work programme, such as tip inspections, maintenance works and technology trials, and for local resilience forums (LRFs) to prepare any necessary emergency plans. 

In preparation for new legislation and consultation with land owners, we will also be processing the land ownership information relating to each tip using HM Land Registry records.  We will only use your personal information for the purposes of ascertaining the extent of coal tips and their estimated risk in Wales. 

Why do we need to process your personal data?

The national geospatial dataset of disused coal tips in Wales will be of key importance in how the Welsh Government and its partners manage coal tips in Wales, and will be as relevant in the future as it is currently. In respect of this, Welsh Government will retain this information for as long as it is necessary. The retention will be reviewed in 20 years, in line with our data retention policy and legal commitments, to ensure that it is still required.

Will your personal information be shared?

Your personal information will be shared with local resilience forums (LRFs) in order to enable any emergency plans to be prepared for the high-risked rated tips; and also with the 16 local authorities which have disused coal tips within their boundaries, Natural Resources Wales (NRW), and the Coal Authority, in order to assist with the management and understanding of tips. As part of the management and understanding of tips, these bodies, and Welsh Government, may also share the disused coal tip boundaries with contractors and consultants, working on their behalf.

The disused coal tip boundaries will be shared with selected third parties to assist with disused coal tip research and technology trials.

The boundaries of the disused coal tips and their risk ratings will be shared publically when the data is deemed to be complete and will eventually become an important part of how coal tips are managed in Wales.  The disused coal tip boundaries and risk ratings will continue to evolve as understanding of each tip increases.

Your rights

Under the UK GDPR you have the following rights;

  • To access a copy of your own data; 
  • For us to rectify inaccuracies in that data;
  • To object to or restrict processing (in certain circumstances);
  • For your data to be ‘erased’ (in certain circumstances); and
  • To lodge a complaint with the Information Commissioner’s Office (ICO) who is our independent regulator for data protection.

Contact information

The contact details for the Information Commissioner’s Office are: 

Wycliffe House,
Water Lane,
SK9 5AF.

Phone: 01625 545 745 or 0303 123 1113.

For enquiries about this privacy notice or the coal tip safety programme, please contact:


If you have any questions relating to this privacy notice or about how Welsh Government handle your personal information, please contact our Data Protection Officer: 

Welsh Government,
Cathays Park,
CF10 3NQ,