EPA Report Blackwater fish mortality investigation July / August 2025
Summary: EPA investigation of discharges to water from EPA-regulated sites in the Blackwater Catchment July / August 2025
In August and September 2025, the EPA participated in a multi-agency investigation into fish mortalities arising in the River Blackwater in August 2025. The EPA’s role was to investigate whether there was any link between the fish mortalities and EPA-regulated sites, and to provide water quality expertise and data to the wider investigation. The findings of this report are intended to support and inform the activities of a multi-agency investigation into the Blackwater fish mortalities.
Download the Summary Inter-Agency report from the Inland Fisheries Ireland website.
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