For works to upgrade the Ballyjamesduff Wastewater Treatment Plant off Market Street, in the townland of Derrylurgan, Ballyjamesduff, Co. Cavan. The proposed development comprises demolition of existing above ground tanks and kiosks and below ground structures within the existing WwTP site, and construction of new buildings, new plant, and ancillary and associated development within an extended wastewater treatment plant site located off an existing access lane from Market Street, in the townland of Derrylurgan, Ballyjamesduff, Co. Cavan. The development will consist of 1) demolition and replacement of existing inlet works; 2) provision of a control storm water overflow chamber, and making redundant the existing storm water overflow outfall; 3) repurposing the existing oxidation tank to provide extra storm water storage, with minor demolition works of ancillary structures; 4) provision of tertiary treatment system (tanks and filter); 5) provision of 5 no. buildings for operating equipment; 6) replacement of existing effluent discharge outfall with larger diameter pipe to serve the final treated effluent discharge and any storm water overflow; 7) provision of wash water recycle system to clean equipment; 8) provision of outfall pump station; 9) demolition of existing sludge tank and replacement with sludge thickening unit and sludge holding tank; 10) provision of biological treatment tank; 11) provision of below ground pump chambers and process drainage sumps; 12) provision of odour control unit and above ground duct work; 13) provision of a back-up generator with bunded diesel tank; 14) provision of an ESB substation; 15) extension of internal access road and provision of turning head and car parking to the western end of the site; and 16) ancillary and associated development including removal of existing trees and vegetation on the site, extension of fence line to new site boundary, and mechanical and electrical service connections. A Natura Impact Statement will be submitted to the planning authority with the application. Significant further information and revised plans have been submitted.