The IELTS diagram below was reported being in the exam on 10th Oct 2015. This diagram was not drawn by me but by an IELTS student called Shindhu who got this in the academic writing task 1 test.
Water Supply Diagram: Present & Future
Model Answer: Water Supply Diagram
The diagram illustrates the way the water supply system currently works in Australia and the plans for future changes. Overall, the main change in the future water supply system is based on recycling water for use in the city.
The current water supply system shows that pure water is stored in a dam before being transferred to a city to be used by households, shops and factories. From the city, storm water is directed straight into the river whereas waste water is sent to the water treatment plant to be processed. After the waste water is treated, it is safe to be released into the river.
Regarding the future water supply system, it can be seen that the storage of pure water in the dam and the uses of it in the city are the same as the previous system. However, both the storm water and waste water from the city are to be directed to the water treatment plant for processing after which they will both be recycled back for use in the city. It is planned that no water will be released into the river.
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