Summary Report of the Investigation into Fish Mortalities in the Munster Blackwater
The document below is the summary report of an inter-agency group that investigated the recent fish mortality incident on the River Blackwater.
Published September 25, 2025.
Summary Report of the Investigation into Fish Mortalities in the Munster Blackwater 2025
Associated test results below
Laboratory results
Published September 18, 2025
Link to 'Note on Residue Sampling Results':
Note on Residue Sampling Results.pdf
Links to laboratory results:
Laboratory Results Blackwater fish kill - Raw Metals Data.pdf
Confirmation of samples received_Fish samples taken 26 Aug 2025.pdf
Confirmation of samples received_Fish samples taken 29 Aug 2025.pdf
Previous test results
Published August 29, 2025:
EPA Lab Test Report 1 – River Blackwater
EPA Lab Test Report 2 – River Blackwater
EPA Lab Test Report 3 – River Blackwater
Marine Institute diagnostic tests with updated virology results
Published August 28, 2025:
EPA Monitoring Report North Cork Creameries
Media releases
Find more information about the River Blackwater fish kill via the link below