Water Treatment Plants
There are three water supply networks in the Tweed Shire.
Two small networks supply the rural villages of Tyalgum and Uki, while the major network supplies Tweed Heads and surrounds, the Tweed Coast and the Murwillumbah district.
The major network draws its water from the Tweed River, upstream of the Bray Park weir. The weir acts as a tidal barrage, preventing salt water from the estuary getting in to the fresh water supply. Flows into the weir are supplemented by releases from Clarrie Hall Dam situated on Doon Doon Creek - a tributary to the Tweed River.
It is important to note that Clarrie Hall Dam is only used to supplement the town water supply. For much of the year it is natural flows in the Tweed River that supply our water. Water is only released from the dam when flows in the freshwater section of the Tweed River fall below 95%, usually during winter and spring.
These releases contribute to environmental flows in the river during the drier months of the year, with the water flowing down Doon Doon Creek and into the Tweed River upstream of Uki village. It then flows down to Bray Park Weir, where it is extracted, treated and pumped via a network of over 660km of pipes to 23 reservoirs throughout the shire.
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