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Agricultural spreading of biosolids in Holywell

Published: 21/04/2023

Flintshire County Council wish to notify residents in advance that, during this Spring (01.05.23), United Utilities intend to deliver and apply conventional standard, digested Biosolids to farm land in Holywell                                                     

The map below shows the area of land (in yellow) which will be treated.


The application of Biosolids is both beneficial to agriculture and the environment and whilst residents may notice an unpleasant smell, the Council would like to provide reassurance that there is no risk to public health.  

For more details about Biosolids, please go to