The Eastern Cape lost more 113 billion litres of water during the 2017/2018 financial year through water mismanagement.
This was revealed by the Minister of Cooperative Governance, Dr Zweli Mkhize, who was responding to a parliamentary question by the Freedom Front Plus.
In the reply, the Minister revealed that the Nelson Mandela Bay Municipality was the biggest culprit, with more 48 billion litres of water wasted due to leaks.
The FF Plus' Wouter Wessels said on average, the metro lost 131 million litres of water every day, due to leaks during the course of the previous financial year.
He says it is clear from these figures that the government, especially municipalities in the Eastern Cape, is not serious about saving water.
Wessels said the wastage occurred amid a serious drought that has plagued the province over the last few years. While residents heeded the municipalities' requests to use water sparingly, the authority themselves failed to address water losses caused by leakages.
"Instead, Eastern Cape residents suffered at the hands of municipal councils and a provincial and national government that are not committed to doing basic maintenance work" he added.