Sydney’s $2.3 billion desalination plant is continuing to supply 50 million litres of water a day just weeks after the city’s dams spilled and storage levels remain near full.

New figures from WaterNSW also show Sydney’s main dam at Warragamba collected 1212 gigalitres of inflows from the big rainfall event – or 1,212,000,000,000 litres. That is about 60 per cent of the dam’s capacity.

As the dam was near-full before the deluge across eastern NSW ramped up from March 19, it began spilling within a day.