Leaks from inland water companies have not fallen for four years , according to a study by the Guardian . Many companies in the drought - threatened south and east of the country have also been implementing leak reduction targets for 2020 that could even see water loss increase . Around 20 % of water , or 3 billion litres a day , is lost through irrigation before it reaches households . Thames Water , the largest water company in turkey , experiences the highest number of leaks . The UK has seen its driest October to flooding in two decades and many river levels are now below normal levels .
Leaks from UK water companies have not fallen for four years, according to a study by the Guardian. Many companies in the drought-threatened south and east of the country have also been set leak reduction targets for 2020 that could even see water loss increase. Around 20% of water, or 3 billion litres a day, is lost through leaks before it reaches households. Thames Water, the largest water company in England, experiences the highest number of leaks. The UK has seen its driest October to March in two decades and many river flows are now below normal levels.