The capacity of combined South-East Queensland dam levels has dropped below 60 per cent for the first time in 11 years.

Seqwater has consequently increased production to 100 per cent at the Tugun desalination plant on the Gold Coast, able to make up around 15 per cent of the region’s drinking water supply.

Queensland Urban Utilities manager Michelle Cullen said during the spring, water usage had reached 200 litres per day per person.

Restrictions will not be implemented unless water capacity falls below 50 per cent.