The 100 ML reservoir is located within the Rushforth Road Water Treatment Plant. It is a “turkey’s nest” style dam constructed in 1985 built by excavating to weathered rock and shaped with selected materials with a clay lining. The internal floors and embankment walls were constructed of reinforced concrete, with internal and external walls constructed using 1 in 3 & 1 in 2.5 slopes respectively.
Raw water is sourced from either the Nymboida River or Shannon Creek Dam and treated to meet the Australian Drinking Water Guidelines. This is achieved by stabilising the water with lime and carbon dioxide and fed to the 100 ML reservoir before it is disinfected through chloramination (chlorine + ammonia) and fluoridation. The water is then transferred to the reticulation system to up to 50,000 customers in the Waterview Heights, Eatonsville and Seelands, Maclean, Lawrence, Yamba, Iluka, Junction Hill, Ulmarra, Grafton and other rural areas.
Dams Safety
The dams safety legislation requires CVC, as dam owners, to publish an Annual Dams Safety Standard Report for Rushforth Road 100 ML Reservoir. Section 14(4) of the Dams Safety Act 2015 requires us to publish a report demonstrating the owner’s compliance with the dams safety standards. Clause 26 of the Dams Safety Regulation 2019 (the Regulation) requires us to provide a copy of the report to Dams Safety NSW.
The report here(PDF, 371KB) covers the period 1 January to 31 December 2024.
