10-year planning permission at Curragha Water Treatment Plant, Knavinstown Curragha

Proposed development

the development will consists of: • A 10-year planning permission for an operational life of 30 years. • Construction of a new building (9.5m x 8.5m) replacing the existing building which would be demolished (6m x 4.2m). This new building will have 3 separate compartments: chemical dosing, MCC and filtration room. In the Chemical dosing room, a 1200l chemical dosing tank will be installed in bund with within the room .2No. dosing pumps will be installed in a dosing cabinet, within the chemical dosing room. The filtration system will consist of 4 pressure filters to be installed, with its associated pipework, 2 pumps, 2 blowers and a compressor; • 2No. new pre oxidisation contact tanks (12.73m³ each) will be installed in the existing building, which is currently the filter building. The existing 2No, pressure filters in the building will be replaced by the new proposed contact tanks; • A new backwash holding tank (15.9m³) will be installed onsite to replace the existing tank but will be on a different location within the site; • The filtration process produce residual water (dirty wash water) in the process of backwashing. This water will undergo treatment (settlement and separation) before being discharged into the environment. 1 No. Equalisation precast tank (23m³), 1No. Settlement tanks (7m³) and 1 No. Sludge tank (4.75m³) will be installed within the site layout; • Demolition of existing welfare and building (To be replaced by new filter building) and holding tank on site; • Increasing boreholes output from 35m³/hr to 49m³/hr; and • Installation of new underground pipework from the boreholes onsite to the new filter building and to the residual treatment tanks. New pipework to be connected to the existing mains pipework. • Construction of hammerhead road to allow for vehicle turning for delivery trucks, improvement of site entrance, all associated ancillary works and any required landscaping

Planning status

The application has been lodged and validated. The council has eight weeks to decide, unless it asks for further information. The council's decision is due by 11 Jun 2026.

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