Under the current consent, water quality is the priority 'lake level management' driver, as greater out-flows than in-flows through the Okere Gates must be maintained. However this may result in lower lake levels during times of no rainfall, as currently experienced.
Residents in the lakes area, particularly around Lake Rotoiti, have also expressed concern over falling lake levels. Lake Rotoiti is 50mm below its preferred minimum level while other district lakes are also very low.
Lake levels recovered slightly following several days of rain during December, but not enough to prevent current low lake levels.
"Until we get significant rain the lake levels will remain low," Mr O'Rourke said.
"The good news is that there is some prospect of rain this week, so hopefully a recovery is in sight."
In the meantime the situation continues to be monitored closely and updates will be issued as required.