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News Centre > Monday 12 February 2018

Urgent repair work to damaged wastewater main on Route de Cobo

Road works

A section of Route de Cobo will be closed to traffic next week from Monday 12 February.  

Guernsey Water will be carrying out repair works to a damaged wastewater rising main along Route De Cobo during the week commencing Monday 12 February.

This main transfers pumped sewage flows from the Cobo Wastewater Pumping Station to a point at the junction of Route De Cobo and Route De Saumarez where it discharges into the sewer network and then flows by gravity to our Belle Greve Wastewater Centre. 

Flow from the pumping station will be maintained during initial excavation works, but the nature of the repair works will mean that Cobo Wastewater Pumping Station will need to be isolated while the repair is carried out. 

Tankers will be used to transfer sewage from Cobo Wastewater Pumping Station to the one at Vazon.  Due to the high volume of flow which Cobo Wastewater Pumping Station receives, excess sewage will need to be discharged through the combined sewer overflow (CSO) at Saline Bay.  It is anticipated that this will be for one working day.

Sewage warning notices will be placed on the beach during this time.   This and the overall plan has been agreed with the Office of Environmental Health and Pollution Regulation (OEHPR) and is likely to happen on either Tuesday 13 or Wednesday 14 February.

The section of Route de Cobo that will be closed from 7am Monday morning until Friday afternoon or earlier if the works are complete, is from the junction of Le Douit Boudin to Ruette Des Cherfs.  Residents in the area have been advised of likely disruption.

Guernsey Water's operations manager, Jon Holt, said: "During the initial excavation work the flow of wastewater will be maintained through the rising main however, due to the nature of the repair required it will be necessary to shut down the Cobo Wastewater Pumping Station while the work is carried out. 

 "Every effort will be made to keep sewage discharge from the Saline Bay CSO to an absolute minimum," said Mr Holt.

"We have been in touch with the residents in the area advising them of the likely disruption a few will experience accessing their properties and the temporary parking arrangements that have been made during this time.

"We would like to apologise in advance for any disruption this is likely to cause islanders and will try hard to keep the disruption to an absolute minimum during this essential work," said Mr Holt.   

Residents in the area have been advised that it is unlikely to cause any disruption to their wastewater or drinking water services.

Guernsey Water will issue updates on the progress of this work via its Facebook and Twitter accounts (@GuernseyWater) as well as its website www.water.gg.  

For enquiries contact the customer service team by telephone on 239500 or email at customer.service@water.gg.

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