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WRITTEN QUESTION TO THE MINISTER FOR TRANSPORT AND TECHNICAL SERVICES BY DEPUTY G.C.L. BAUDAINS OF ST. CLEMENT
ANSWER TO BE TABLED ON TUESDAY 21st FEBRUARY 2012
Question
Would the Minister advise, with regard to the St Aubin treated sewage outfall, whether it complies with environmental requirements by not reaching to low water level and whether any action has been taken by his department since this issue was discussed by the Public Services Committee twelve years ago?
Answer
The position of the outfall in St Aubin's Bay does comply with environmental requirements. The discharging effluent is fully disinfected by means of Ultra Violet Treatment (UV) ensuring the receiving waters are safe for recreational water users. I am aware that prior to the first UV plant installation in 1992 there was discussions as to whether the outfall should be extended or should a form of disinfection be introduced. The Public Services Department at the time made the environmental decision of installing UV disinfection facilities prior to the final effluent's discharge through the outfall – the first of its type in the British Isles. Since then, the sewage treatment works has been upgraded over the years in an attempt to serve the increasing population and meet the additional effluent quality requirements being imposed.
The Transport and Technical Services Department in conjunction with the Environment Department is currently in the process of developing the Liquid Waste Strategy for sewage treatment works and sewerage network to serve the needs of the Island over a twenty-year period. It is anticipated that the level of sewage treatment and the length of outfall will be investigated with a view to arriving at an optimum solution. Due consideration will be given to anticipated legislation and best practice.