Civil Engineering June 2022 | Vol 30 No 5

8 June 2022 Civil Engineering T he overall project included a raw water pumpstation at Rosetta, a 20 Mℓ/d water treatment works, a 5 Mℓ reservoir in Nottingham, a 12 Mℓ reservoir in Bruntville and interconnecting pipework. This would feed potable water to the neighbouring towns of Nottingham Road, Mooi River and Bruntville. CONSTRUCTION OF THE WATER TREATMENT PLANT In July 2016, Basil Read was awarded the contract to build the water treatment plant for Umgeni Water, who appointed their own Capital Projects Team to oversee its design and construction. The contract required Basil Read to construct a water treatment plant that could deliver up to 20 Mℓ of water per day in line with the SANS 241 potable water requirements. A great deal of mutual trust was required between the contractor and engineer to ensure that the project stayed within budget and delivered the quality and quantity of water that Umgeni Water required. Building the Rosetta Water Treatment Works Glenn Jardine Pr Eng Project Manager Basil Read gjardine@basilread.co.za In 2002 Umgeni Water investigated the construction of a water treatment plant to feed off the Spring Grove Dam in Rosetta, KwaZulu-Natal. In 2007, the dam construction was completed and the pipe reticulation phase began. This piping was to feed raw water from Spring Grove Dam to the catchment area of Midmar Dam. Thus, the level of Midmar Dam could be regulated with water being pumped from Spring Grove Dam. Water eng i neer i ng Rosetta WTW construction site