Water & Wastewater Treatment

24 | october 2014 | WWt | www.wwtonline.co.uk (Above) Pipes be- ing stored at Maze Longkesh ahead of their use in the project. (below) the pro- ject team at work. Project focus: Pipes and pipelines Poleglass, Carricknareagh, Duneight and Magheraliskmisk. "All of this work will greatly improve the water infrastructure and security of the water supply for cus- tomers in the area," says Gillen. "Our design horizon for the project is to be equipped to accommodate potential water flow levels through to 2035, including coverage for peak week demands. "While the new pipeline will sup- port and safeguard the existing water infrastructure for the area, which supplies water into Belfast through Drumaroad, Dunore Point and Doris- land Water Treatment Works, it will also play a vital role in enabling us to meet any future increased demand on the water supply. This will be par- ticularly important during emergency situations, such as a winter freeze / thaw event. It will also undoubt- edly increase the overall capacity and robustness of NI Water's supply infrastructure." For more info go to wwtonline.co.uk "The need for good public rela- tions and ongoing liaison with roads service, public representatives and local residents is essential to the suc- cess of a project like this." Just over half the length of the new pipeline, approximately 15km, will be laid with 700mm epoxy-coated, ce- ment-lined, ductile iron, spigot socket pipe. While most of the remaining 14km will be fitted with 600mm pipe, a small amount of 500mm pipe will also be used. The £14m budget also covers several infrastructure upgrades, all of which are linked to the new pipeline route. These include a major upgrade to the Castor Bay Water Pumping Sta- tion at Craigavon to accommodate a new pumping capacity ranging from approximately 30 to 48.5 megalitres a day. The station pumps into the Forked Bridge, Ballydougan and Magheraliskmisk areas. The construction of two completely new water pumping stations is also planned. The first is at Sprucefield, where a pumping capacity of 31 megalitres a day will be created while the second is at St. Andrews Service Reservoir, Temple, which will have a pumping capacity of approximately 24 megalitres a day. There will also be a re-commis- sioning of two local service reservoirs that are currently out of operation. These are located at Danescro›, Lisburn, and at St Andrews, Temple, close to where the new St Andrews unit is being built. When complete, the re-commissioned Danescro› SR will have the capacity to pump approximately 9 megalitres a day, while the re-commissioned unit at St Andrews will have a 1 megalitre capacity. Additional refurbishment work is also planned at four other service reservoirs (SR) as part of the total development. These are the SRs at "As the majority of the pipelaying is through public roads, potential impact on the public is of concern" Martin Gillen, project manager • Perspectives Sara Venning, chief executive, NI Water "With pipe laying now well underway, the pro- ject will ensure the secu- rity of the water supply, and, along with our project delivery team of Lagan Construction and Capita, we will work with the public to ensure that this work is carried out with minimum disrup- tion. Further updates will be available and signage will be in place as the scheme progresses." Martin Gillen, project manager "This essential new project will provide a vital new source of water com- ing into Belfast, which will be particularly important over the winter months and other emergency situations to supplement increased demand when the infrastructure is par- ticularly vulnerable." Danny Kennedy, Northern Ireland regional Development Minister "[The pipeline] is good news for customers as it will improve the security of the local water supply infrastructure. "It will also improve drinking water quality, reduce leakage and en- sure that NI Water com- plies with the relevant EU directives."

• Cover