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Cyngor Sir Ynys Môn - Isle of Anglesey County Council

Ongoing projects

Craig y Don, Amlwch

Precautionary exploratory works is currently ongoing at the Craig y Don Estate. The work relates to an assessment as to whether the historic use of the land could have left contamination in the soil. The Council is expected to identify and prioritise any land within its area that may have been contaminated by past industrial use.

The investigation is being funded by the Welsh Government’s Contaminated Land Capital Programme 2017-18.


Many residents may recall that prior to the construction of Craig-y-Don, the site was often referred to as “Gwaith Hills” or Hill’s Works. “Gwaith Hills” is a reference to the Hill’s Chemical Works which operated on the site from around 1889 and specialised in the manufacture of fertilizers. However, even before this, the site had been the location of copper smelting since around 1786. 

Works to date

  • Anglesey County Council have made contact will all residents seeking permissions to sample and agreement forms collated
  • ESI the appointed contractors started sampling works on the 11th December 2017
  • ESI completed the sampling works Friday 26th January 2018
  • Laboratory testing is ongoing at present 
  • Residents meeting held where results were presented 15.03.18

Residents Group

A residents group has been created in order to keep residents well informed of developments and to answer any concerns that residents may have. The date of the next meeting will be published here when it has been confirmed. 

Minutes of meetings

Approved minutes will be uploaded on this page so that residents are kept up to date. 

Should any resident have any questions regarding the investigation, they are welcome to contact the Environmental Health section.