Planned and Current Works
CURRENT WORK:
Jack's Lane, Maughold - Mains replacement: February 2013
The Authority will shortly be commencing work on replacing the water mains in Jack's Lane, Maughold. The length of new pipe will be approximately 900 metres with new service connections and field troughs also being installed. The work is being carried out in order to improve the service provided to local residents as the current pipework is old, in poor condition and prone to bursting.
The work is currently scheduled to be completed in May 2013.
Throughout the project access to properties will be maintained although it may be restricted at times when work is being carried out nearby.
The Authority is grateful for the support and co-operation of local residents whilst this project is being carried out. For further information in relation to this project please contact Isle of Man Water and Sewerage Authority Customer Services on 695949 or Project Sponsor, Dave Cain, on 695973.
Glen Maye, Glen Mona and Corony Sewage Treatment Works: February 2013The Authority is in the process of replacing the existing outdated sewage treatment works at Glen Maye, Glen Mona and Corony. The old infrastructure is being replaced with modern Integral Rotating Biological Contactors (IRBCs) because the quality of the treated effluent being produced by the existing sewage treatment works isn't commensurate with modern standards.
IRBC treatment plants consist of the simplest form of biological treatment. The treatment is provided by a rotating biological element that is partially submerged in an underground tank containing raw sewage. The rotating element has a growth on its surface known as a Biomass which, by repeatedly entering the sewage and thereafter the air, allows bacteria to be developed that digests the harmful part of the sewage.
The new IRBCs will provide a modern process that will ensure that the treated effluent that is discharged will conform to modern day standards as determined by the Environmental Protection Unit of the Department of Environment, Food and Agriculture.
Aesthetically the new plants are more pleasing to the eye and, as they are covered, offer very little risk of odour emissions. They are low energy, low maintenance processes with noise levels well below acceptable requirements and they will appear all but silent to local residents.
Once completed, attendance by Authority staff will amount to no more than a few hours per week, with quarterly visits by a tanker to de-sludge the units, which compares favourably with the current attendance being provided for the existing works.
 Inside an IRBC - Feb 2013 | ||
The work is currently scheduled to be completed in May 2013.
The Authority is grateful for the patience, support and co-operation shown by local residents during the project delivery period. For further information in relation to this project please contact Isle of Man Water and Sewerage Authority Customer Service or the Project Sponsor, Brian Barnett, on 695949.
Kirk Michael New Sewage Treatment Works: February 2013
The Authority has commenced the construction of a new sewage treatment works in Kirk Michael. Dating back to the 1960s, the existing treatment works consists of a basic screening process, followed by the settlement of crude sewage and thereafter screening to remove any gross solids prior to discharging to the sea via an outfall pipe.
 Existing Kirk Michael sewage works Image 1 - Feb 2013 |  Existing Kirk Michael sewage works Image 2 - Feb 2013 | ||||||||||||||||||||||||||||||||||||||||||||||||||
 New Kirk Michael sewage works - Feb 2013 | ||
The Authority would like to thank local residents for their forbearance and patience whilst the works are being carried out. For further information in relation to this project please contact Isle of Man Water and Sewerage Authority Customer Service or the Project Sponsor, Brian Barnett, on 695949.
Sulby Water Treatment Works - Energy Recovery Project: February 2013
The Authority has installed an energy recovery system at Sulby Water Treatment Works. From the beginning of this month, water has been piped from the reservoir to the treatment works and then passed through a new turbine to generate hydroelectric power. After going through the turbine the water then passes through the treatment works and onto our customers. It is anticipated that the turbine will provide up to 50% of the electricity required to run the works.
The Authority is installing a 'Turgo' turbine which was produced by Gilbert Gilkes & Gordon Limited who are based in Kendal, Cumbria. Gilkes have over 150 years experience with hydro turbines, installing their first in 1856. They are considered a world leader in the field of small hydropower systems and were ideally suited to provide the type of turbine required at Sulby.
 New turbine installed at Sulby - Feb 2013 |  New turbine annex at Sulby - Feb 2013 | |||||||||||||||||||||||||||||||||||||||||
Auldyn Construction, the principle contractor, are in the process of completing the final items of commissioning work with the project expected to be completed next month.
For further information in relation to this project please contact Isle of Man Water and Sewerage Authority Customer Services Team on 695949.
RECENT PROJECTS:
Jurby Sewage Treatment Works
Work has recently been completed on the construction of a new sewage treatment works in Jurby. The new treatment works was installed in November 2012 by Auldyn Construction and is now in use. The project was completed on time and under budget.
The old infrastructure, dating from the 1940s, was replaced with modern Integral Rotating Biological Contactors (IRBCs) because the quality of the treated effluent that was being produced was not meeting current standards. The modern process used by the new IRBCs ensures that the treated effluent which is being discharged is of an excellent quality. The new process also ensures that the facilities comply with modern day standards as well as local parameters which are determined and set by the Environmental Protection Unit of the Department of Environment, Food and Agriculture.
Aesthetically the new plants are more pleasing to the eye and, as they are covered, offer very little risk of odour emissions. They are low energy, low maintenance facilities with noise levels well below acceptable requirements which will appear all but silent to local residents. Attendance by Authority staff now amounts to no more than a few hours per week, with quarterly visits by a tanker to de-sludge the units.
As an additional improvement the last section of the outfall pipe is currently being replaced. This is scheduled for completion in early April.
 Newly installed IRBCs at Jurby - Feb 2013 | ||
The Authority would like to thank local residents for their patience and understanding whilst the works were taking place.
Aust Lane, Lezayre – Mains replacement
The Authority has replaced 400 metres of water mains within Aust Lane, Lezayre. The work was carried out in order to improve the service provided to local residents as the replaced pipework was old, in poor condition and prone to bursting.
The work was completed on schedule in December 2012.
The Authority recently completed the rehabilitation of two sewers under Douglas Harbour. The existing cast iron sewers, which date back to Victorian times, convey all the sewage from the Douglas Head and South Quay area under Douglas inner harbour to North Quay, for onward transmission to the treatment works at Meary Veg.
Undertaken as part of the Authority’s ongoing investment in ‘No-Dig’ sewer rehabilitation, this work has extended the serviceable life of these key assets by at least another fifty years, and has significantly reduced the immediate operational and environmental risk of discharging raw sewage into the inner harbour area, should the existing sewers become blocked or collapse.
Working in conjunction with Insituform Technologies Ltd, and by utilising the latest sewer rehabilitation techniques, the Authority has achieved its objective in a timely fashion and with minimal disruption to harbour users and the travelling public.
Chairman of the Water and Sewerage Authority, Mr John Houghton MHK, said:
“By approaching this project in an innovative fashion, the Authority has delivered what was originally envisaged as a £900,000 capital project, involving excavation beneath the bed of the harbour, to a £150,000 scheme incorporating the latest No-Dig sewer lining technology.”
On behalf of the Authority, Mr Eric Whitelegg (Project Sponsor) would like to take this opportunity to thank adjacent businesses and members of the public for their patience and understanding throughout the works.
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