Planning application · Donegal County Council

A PERIOD OF 10 YEARS FOR UPGRADES TO THE EXISTING ILLIES WATER TREATMENT PLANT…

ILLIES , LIFFORD PO , CO. DONEGAL

2661681 · DonegalLodged
Reference
2661681
Planning authority
Donegal County Council
Received
10 Sept 2026
Decision due
4 Nov 2026
Status
Lodged
Site area
3.79 ha

Proposed development

A PERIOD OF 10 YEARS FOR UPGRADES TO THE EXISTING ILLIES WATER TREATMENT PLANT CONSISTING OF: (1) NEW DISSOLVED AIR FLOTATION BUILDING TO BE CONSTRUCTED ADJACENT TO THE EXISTING DISSOLVED AIR FLOTATION BUILDING, HOUSING A FOURTH DISSOLVED AIR FLOTATION STREAM OF SIMILAR HEIGHT BUT WITH A SMALLER FOOTPRINT THAN THE EXISTING DISSOLVED AIR FLOTATION BUILDING, (2) TWO NEW FIRST STAGE RAPID GRAVITY FILTERS TO BE CONSTRUCTED AS AN EXTENSION TO THE EXISTING SIX RAPID GRAVITY FILTERS, (3) UPGRADE OF THE EXISTING SECOND STAGE RAPID GRAVITY FILTERS TO DUAL-MEDIA CONFIGURATION, INCLUDING MODIFICATIONS TO WEIRS, UNDERDRAINS, AND AIR SYSTEMS, (4) NEW SLUDGE CONCENTRATOR TANK (258M³) TO BE INSTALLED ADJACENT TO THE EXISTING SLUDGE CONCENTRATORS, (5) UPGRADE OF THE EXISTING SLUDGE DEWATERING SYSTEM, INCLUDING PROVISION OF A HIGH-CAPACITY FILTER PRESS, AUTOMATED CONVEYOR SYSTEM, AND A COVERED TRAILER LOADING BAY, (6) DEMOLITION OF THE EXISTING WORKSHOP, AND CONSTRUCTION OF A NEW WORKSHOP AT AN ALTERNATE LOCATION WITHIN THE SITE, (7) NEW EXTERNAL ALUMINIUM SULPHATE (ALUM) BULK STORAGE, COMPRISING TWO 86M³ BUNDED TANKS, (8) MODIFICATION OF THE EXISTING ALUM STORAGE BUILDING TO HOUSE A NEW SODA ASH SILO. BUILDING HEIGHT WILL BE INCREASED TO MATCH THE EXISTING ADJACENT STRUCTURE HOUSING SODA ASH SILOS, (9) INTERNAL MODIFICATIONS TO EXISTING BUILDINGS (I.E., REMOVAL OF WALL) TO ACCOMMODATE NEW AND UPGRADED SYSTEMS, INCLUDING DOSING ARRANGEMENTS, BACKWASH PUMPS, AND AIR BLOWERS, (10) ELECTRICAL, INSTRUMENTATION, CONTROL AND AUTOMATION SYSTEM UPGRADES, INCLUDING A NEW SUPERVISORY CONTROL AND DATA ACQUISITION SYSTEM, NEW PANELS, AND INPUT AND OUTPUT SIGNAL MODIFICATIONS TO SUPPORT ADDITIONAL EQUIPMENT, (11) SOLAR PHOTOVOLTAIC PANELS TO BE INSTALLED ON ROOF AREAS TO SUPPORT ENERGY EFFICIENCY AND RENEWABLE ENERGY TARGETS, (12) IMPROVEMENT OF INTERNAL ROAD LAYOUT AND ACCESS ROUTES TO FACILITATE OPERATIONAL EFFICIENCY AND SITE DELIVERIES, (13) NEW FENCING AND GATES TO BE INSTALLED WHERE REQUIRED (MAXIMUM HEIGHT 2.4M), (14) LANDSCAPING, SCREENING, PLANTING AND BIODIVERSITY IMPROVEMENT MEASURES AND (15) ALL ANCILLARY SITE DEVELOPMENT WORKS

What happens next

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 4 Nov 2026.

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About this page: the facts above come from the statutory public planning register kept by Donegal County Council and are refreshed weekly (last updated 21 Sept 2026). Applicant names and contact details are not shown. Status labels are PlanningLeads' plain-language reading of the register status and the "Use" label is classified by AI from the public description (see how we use AI); neither is legal advice and the council's file is the record. How we handle this data: privacy notice.

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