The development will consist of: 1) Revised Firewater Retention (FWR) Tank and Balance Tank…

Application details

Planning reference

2660771

Council

Mayo County Council

Proposal description

The development will consist of: 1) Revised Firewater Retention (FWR) Tank and Balance Tank, including construction of a reshaped open top concrete tank (approx. 50 m × 56 m with a chamfered corner), depths of 4.0–6.25 m, partially recessed into the ground, and raised to a revised top of wall level of 45.675 m AOD with max height above ground level of 4.275m. An internal 18.6 m diameter, 1,000 m³ process water balance tank will be constructed within the FWR tank with max height above ground level of 4.275m; 2) Repositioning of a new below ground FWR collection sump and a 20 m × 10 m × 4.4 m high lifting station, pumping firewater over the tank wall, together with associated firewater drainage connections; 3) Repositioning of a new single storey FWR Utilities Building, approx. 9.6 m × 7.3 m and 4.72 m high; 4) A new 10 m × 5 m x 3.8m high Dosing Station with two external tanks; 5) A new below ground Discharge Chamber, approx. 13 m × 3 m, for controlled diversion and management of firewater runoff; 6) A new below ground Tanker Parking Bay, approx. 13.5 m × 3.5 m, for compliant tanker loading/unloading; and 7) All associated site development works, including modifications to existing plant, equipment, pipe bridges, underground services, internal access roads, footpaths, hardstanding areas, lay down areas, and external lighting.

Location / address

Abbvie, Castlebar Road (N5), Carrowbeg, Westport, Co. Mayo, F28 AW83

Application type

PERMISSION

Received / registered

2 Oct 2026

Valid date

2 Oct 2026