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Small Improvement for Reservoirs 9 October 2003

The continued rainfall has resulted in further small improvements in stocks of water in some of the Island's impounding reservoirs but the ground is so dry it is still absorbing most of the rainfall.

So far this month there has been 35.7 mm of rain at West Baldwin, that's about 80% of the long term average. The reservoirs are currently as follows:

  • West Baldwin, 33.8% full, 30 days supply, recovering gradually
  • Ballure, 75% full, 30 days supply
  • Clypse, 7.7% full, stopped taking water, recovering gradually
  • Kerrowdhoo, 7.8% full, stopped taking water, "earthy taste"
  • Cringle, 7.6% full, stopped taking water, down to the dregs
  • Sulby, 75% full, over one years supply

Ballagawne Water Treatment Works has had to be taken out of commission due to lack of water - the whole of the supply for the south of the Island is now being derived, in equal proportions, from Sulby Water Treatment Works (via the West Coast Trunk Main and St Johns Pumping Station) and Glencrutchery Water Treatment Works via the Braaid Service Reservoir.

The level of West Baldwin is being maintained by constant pumping over the hill at Beinn-y-Phott from Sulby Reservoir and is gradually coming up. The pumps at Sulby Dam have been running since the beginning of September and are delivering about 13 million litres per day - that's the maximum rate at which it can be pumped.

Water consumption continues to decline which is encouraging. The Authority continues to encourage customers to "Use Water Wisely" and conserve supplies.

A total ban on the use of hosepipes is to come into force on 9th October. Official notices will appear in the newspapers this week.

The Authority is seeking a 50% reduction in compensation water being discharged from West Baldwin reservoir, down from 200,000 gallons per day to 100,000 gallons per day.

The Authority is still receiving a steady number of complaints each day about water quality, mainly discoloured water but some earthy taste complaints.

The situation is beginning to stabilise as the volume of water being used by customers is reduced and comes into line with the amounts that can be produced from the water treatment works. The volumes "Being put into supply" and the volumes "Being taken out of supply" are beginning to balance. The Chief Executive, Patrick Heaton-Armstrong, says "If we can keep it this way we should get through this dry period."

The situation continues to be reviewed on a daily basis.

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