Department of Housing, Local Government and Heritage Copies of the CDM Smith Report on Shannon Ardnacrusha Advice Report on Fish Passage and connectivity in the lower Shannon SAC. Information relating to any amendments to the environmental regulations and guidelines governing the operation of the Shannon Electric Hydro Scheme since 2010 . Information relating to any measures in national law exempting the ESB from obligations contained in or derived from the Water Framework Directive or the Habitats Directive.