A critical asset for Melbourne Water, the Eastern Treatment Plant is located in Bangholme in Victoria and treats around 40% of Melbourne’s sewerage. A key part of the treatment process is 24 secondary sedimentation tanks which remove further solids from the effluent being treated. Due to the aggressive nature of effluent on these assets over their lifespan, major refurbishment is required to ensure they can continue to effectively operate.

For over a century, Wallis Hill Clear Water Storage tank has provided potable water storage for the town of Seymour. It comprises brick walls supported by unreinforced concrete buttresses and is approximately 35.1m long, 22.2m wide and 5m deep with a nominal capacity of 4ML. We rehabilitated the tank’s concrete substrate and replaced its liner to prolong service life.