The EPA has published its latest National Priority Sites List for Enforcement.
Seven industrial sites are currently on the list for failing to meet the necessary environmental standards.
Aurivo Dairy Ingredients Limited in Ballaghaderreen, Co. Roscommon are among the seven sites listed.
Five sites have come off the previous National Priority Site list following improvements in compliance.
These include the Shell E&P Ireland Limited site in Bellanaboy and the East Galway Residual Landfill Site near Ballinasloe.