Burrendong Dam was at 135.2 per cent capacity on Monday afternoon, with more rainfall forecast for the region.
A WaterNSW spokesperson said the dam was receiving inflows of 41 gigalitres per day.
“Releases increased today from 14 gigalitres to 19 gigalitres per day to create sufficient airspace,” the spokesperson said.
“WaterNSW is closely monitoring the Bureau of Meteorology's forecasts ...