The Degree of Treatment Required at the New Sewage Works

The Sligo wastewater treatment works will provide secondary treatment so as to produce an effluent to the standards set out in the Second Schedule, Part One of the Urban Waste Water Treatment Regulations 2001, as follows:

Parameter Reduction	Concentration	Minimum % of Reduction
Biochemical Oxygen Demand	25 mg/l	70 - 90
Chemical Oxygen Demand	125 mg/l	75
Total Suspended Solids	35 mg/l	90

UV (ultra violet) treatment for bacterial reduction will be provided to protect mariculture activities in Sligo Bay area.

Benefits of a Wastewater Treatment for Sligo

The multiple benefits of constructing a new wastewater treatment works in Sligo are: Compliance with the E.U. Directive 91/271/EEC - SI No 254 of 2001 (Urban Waste Water Treatment Regulations, 2001).

• Reduced threat of pollution of Sligo Bay.
• Elimination of unsightly discharge of untreated wastewater at the current outfall.
• Protection of existing mariculture in Sligo Bay.
• Protection of Blue Flag Status at Rosses Point.
• Enable Sligo to develop in a planned orderly manner for residential, commercial and industrial activities.
• Facilitate the development of a large area adjacent to the town centre for urban enhancement, recreation and industrial development.

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